Some standard content:
National Standard of the People's Republic of China
Dissolved acetylene cylinders
Dissolved acetylene cylindersGB11638-89
This standard refers to the international standard ISO3807-1977 (confirmed in 1989) "Dissolved acetylene cylinders—— basic requirements". 1 Subject content and scope of application
This standard specifies the specification series, technical requirements, test methods, inspection rules, marking, coating, packaging, transportation and storage of dissolved acetylene gas cylinders.
This standard is applicable to mobile and re-inflatable mobile phones with a limited filling pressure of less than 1.52MPa at a reference temperature of 15°C, a maximum allowable temperature of 40°C, a nominal volume of 10 to 60L, containing porous fillers and solvents. Steel welded dissolved acetylene cylinder. This standard does not apply to containers containing dissolved acetylene in chemical production processes. Note: The pressures in this standard refer to gauge pressure. 2 Reference standards
GB5100
GB6026
GB6819
GB7144
GB8335
Steel welding gas cylinder
Industrial acetone
Dissolved acetylene
Gas cylinder color marking
Special thread for gas cylinders
GB8337
Fusible alloy plug for gas cylinders
GB10878| |tt||Dissolved acetylene cylinder valve
GB11639
GB3864
GB7820
JJG14
3 terms
Dissolved acetylene cylinder porous Determination method of filler technical indicators Industrial gaseous nitrogen
Fine-porous spherical silica gel
Mobile lever scale calibration procedures
3.1 Porous filler (hereinafter referred to as filler): refers to raw materials under certain conditions It is an integral porous substance that reacts and forms in a cylinder and fills the cavity. Its structure can absorb "solvent/acetylene" solution. This standard refers to monolithic calcium silicate porous materials. 3.2 Solvent: A liquid used to dissolve and release acetylene through filler adsorption. This standard refers to industrial acetone (hereinafter referred to as acetone). 3.3 Dissolved acetylene cylinder (hereinafter referred to as acetylene cylinder): refers to a cylinder equipped with a special bottle valve, wearing a special bottle cap, with a safety device (fusible alloy stopper), containing filler, and is used for storage of acetone or acetone to be injected. Container for transporting dissolved acetylene. 3.4 Limited filling pressure: refers to the limited pressure of the medium in the bottle at a certain temperature after the acetylene bottle is inflated and left to stand and the pressure reaches equilibrium.
3.5 Acetylene bottle tare weight: the sum of the mass of the cylinder, filler, accessories (bottle valve, fixed special bottle cap, fusible alloy plug and inspection mark ring) and the specified filling amount of acetone.
3.6 Batch size: refers to the limited quantity of acetylene bottles produced continuously using the same design conditions, the same specifications, the same filling formula and manufacturing process.
3.7 hydraulic pressure: means that the effective volume in the acetylene bottle is filled with "acetone/acetylene" solution. When the temperature continues to rise, due to the volume expansion of the solution, the National Technical Supervision Bureau approved on 21 September 1989 and implemented on 1990-06-01| |tt||
4 code
D.
fA
ks
h.
ma
ms
m
m,
m2
m
m3
m.
V
V
S
Nominal diameter of acetylene bottle, mm,
GB11638-89
One continuous discharge of the test bottle Gas volume, kg; the amount of acetone lost after the test bottle is deflated for the first time by 1 kg, kg, the amount of acetone collected in the separation bottle II after the test bottle is deflated, kg: the acetylene filling amount of the test bottle, kg; ||tt| |Specified filling amount of acetone, kg;
The mass of the test bottle, kg;
The mass of the test bottle after deflation, kg;
The mass of the acetone collection device, kg ;
The mass of the acetone collection device after the test bottle is deflated for the first time by 1kg, kg, the mass of the separation bottle II, kg,
The mass of the separation bottle II after the test bottle is deflated, kg; steel cylinder Actual volume, L,
Nominal volume of acetylene bottle, L,
Porosity of the filler in the cylinder; %;
△Ams-ketone filling capacity tolerance, kg. The nominal volume and diameter of the 5 specification series
acetylene bottles are as shown in Table 1. Table 1
Vg/L
De/mm
6 Technical requirements
10
180
16
200
25
224
40
250
60
300
6.1 cylinders
6.1. 1 The design, manufacturing, testing and inspection of steel cylinders should comply with the provisions of GB5100 and product drawings, but the specifications, test pressure, threads and markings must comply with the provisions of this standard. 6.1.2 The hydraulic test pressure of the cylinder is 5.2MPa. 6.1.3 The air tightness test pressure of the cylinder is 3.0MPa. 6.1.4 The processing and inspection of the threads on the cylinder valve seat and fusible alloy plug seat should comply with the requirements of GB8335. 6.2° Filling
6.2.1 Performance
Test.
The comprehensive performance of the filler in the acetylene bottle should enable the finished acetylene bottle to pass the various safety performance tests and service performance tests specified in Article 8.2.3 6.2.2 Compatibility
In any case, No harmful reactions should occur between the filler and acetylene, acetone, cylinders and accessories. 6.2.3 Appearance requirements
The filler should be integral and uniform, and there should be no penetrating cracks or collapse. 6.2.4 Technical requirements
GB11638-89
8. The porosity should be within the range of 90% to 92%; the volume density should be less than or equal to 270g/L,
b.
The compressive strength should be greater than or equal to 1.8N/mm,
c.
The total volume of surface holes should not exceed 20cm2, and the volume of a single hole should not exceed 1.5cm3, d .
There should be no holes inside that endanger the safety of the acetylene bottle; e.
The total gap between the packing and the bottle wall, measured in the radial and axial directions, should not exceed 0.4 of the diameter or length of the packing %, and not larger than f.
3.0mm.
The shoulder axial clearance should not exceed 0.3% of the packing length and should not be greater than 2.5mm. 6.3 Accessories
6.3.1 The bottle valve should comply with the regulations of GB10878. If the valve body material is copper alloy, its copper content must be less than 70%. 6.3.2 The manufacturing, testing and inspection of fusible alloy plugs should comply with the regulations of GB8337. The operating temperature should be 100±5℃, and their number, size and position should be able to prevent the explosion of acetylene bottles. 6.3.3 The sealing material used at the connection between the bottle valve, fusible alloy plug and cylinder should not react chemically with acetylene, acetone, etc. 6.3.4 The inspection mark ring is made of aluminum and is placed between the bottle valve and the valve seat. 6.3.5 Acetylene bottles should be equipped with fixed special bottle caps, and their mass tolerance should not be greater than 5% of the calculated value, and should not affect the rotation and inspection of the inspection mark ring. It can also be shipped from the factory with a removable special bottle width according to user requirements. 6.4 Appearance of acetylene cylinder
6.4.1 The surface of the cylinder shall not have pits, scratches, corrosion and other defects with a depth exceeding 0.5mm. Otherwise, it shall be ground. The ground shall be smooth and its wall thickness shall not be less than the calculated minimum. Wall thickness (stencil mark thickness s). 6.4.2 The accessories should be in good condition, the assembly should comply with the requirements of the product drawing, and the inspection mark ring should be able to rotate. 6.5 Air tightness
After the filled cylinder and accessories are assembled, there should be no leakage under the conditions of the pressure inside the bottle being 3.0MPa and the duration being no less than 1 minute.
6.6 Acetone
6.6.1 The quality of acetone must meet the requirements of GB6026 first-class products. 6.6.2 The specified acetone charging device is calculated according to formula (1): ms=0.388V
The calculated value shall be kept to one decimal place, and the remaining figures shall be discarded. 6.6.3 The allowable deviation of acetone filling amount should comply with the provisions of Table 2: Table 2
Vg/L
Ams/kg
10
+0.1||tt ||o
16
25
+0.2
.
6.6.4 Acetone is filled by the acetylene filling unit in accordance with the relevant requirements of the "Dissolved Acetylene Filling Regulations". 40
+0.4
(1)
60
+0.5
0
6.7Tare weight
Weigh the filled cylinder and accessories after assembly. The weighing value plus the prescribed filling volume of acetone (ms) calculated according to Article 6.6.2 is the tare weight of the acetylene bottle. Take Three significant figures. 6.8 Limited filling pressure
After the acetylene bottle is inflated and left to stand and the pressure reaches equilibrium, the pressure of the medium in the bottle should be less than the converted value of the limited filling pressure of 1.52MPa based on the reference temperature of 15°C. | |tt | When handling), its ability to prevent the decomposition of internal acetylene should meet the following requirements:
a, the acetylene bottle will not explode;
b. Within 24 hours after ignition, no gas leaked from the fusible alloy plug. 6.9.2 Water bath temperature rise test
The acetylene bottle is filled with the specified amount of acetone and acetylene. During the water bath temperature rise test, the full liquid hydraulic pressure should not be generated. 6.9.3 Simulated fire test
The acetylene bottle is filled with the specified amount of acetone and acetylene. After the simulated fire test, the acetylene bottle shall meet the following requirements: a. Fusible alloy stopper action,
b. 'Acetylene bottles don't explode. || tt | When the flow is continuously deflated, the following requirements should be met: a: The loss of 1kg of acetone during the first deflation shall not be greater than 50 gsb. The amount of continuous deflation at one time shall be greater than or equal to 60% of the acetylene filling capacity of the test bottle. 6.11 Safety requirements
Acetylene bottles must be equipped with special pressure reducers and flashback arresters when used. The deflation pressure during use shall not exceed 0.15MPa, and the deflation flow rate per bottle shall not exceed 2m3/h.
7 Test methods
7.1 Determination of filler technical indicators
According to GB11639.
7.2 Appearance inspection of acetylene bottles
Determined.
Visually inspect the surface of the acetylene bottle, use an ultrasonic thickness gauge to check the wall thickness of the cylinder at the grinding area, and check whether the accessories comply with the regulations in Article 6.4. 7.3 Air tightness test
7.3.1 Full of filler When performing an air tightness test after the cylinder and accessories are assembled, two pressure gauges with the same range, 1.5 to 3.0 times the test pressure, and an accuracy of not less than level 1.5 must be used. The calibration period shall not exceed three months. 7.3.2 The nitrogen used in the test should comply with the requirements of Class II and Level 2 in GB3864. 7.3.3 During the test, the test bottles should be connected to the special test equipment in groups, and after rising steadily to 3.0MPa at a speed of no more than 0.5MPa every 5 minutes, the test bottles should be immersed in water and left to stand for no longer than 3.0MPa. Less than 1 minute, check for leaks. Acetylene bottles that pass the test should seal nitrogen at a pressure of 0.05~0.10MPa. 7.3.4 When conducting air tightness tests, effective protective measures should be taken to ensure the safety of operators. 7.4 Tare weight determination
When measuring the tare weight of acetylene bottles, a scale with a maximum weighing capacity of 1.5 to 3.0 times the actual weighing weight should be used, and its allowable error should comply with the requirements of "Medium Accuracy Level" in Article 17 of JJG14. Weighing instruments should be kept accurate and calibrated at least once a day using fourth-order codes. The calibration period should not exceed three months. The weighing result is rounded to one decimal place and the remaining digits are discarded. 7.5 Filler appearance inspection
Cut the acetylene bottle longitudinally along the diameter. After measuring the total gap between the filler and the bottle wall, take out the filler and visually inspect whether the filler meets the requirements of Article 6.2.3.
7.6 Safety performance test
The acetylene bottle safety performance test method is carried out in accordance with Appendix A (Supplement). GB11638-89
7.7 Service performance test
The service performance test method of acetylene bottles is carried out in accordance with Appendix A (Supplement). 8 Inspection rules
8.1 Factory inspection
8.1.1 One-by-one inspection
All acetylene bottles leaving the factory should be inspected one by one according to the items specified in Table 3. Table 3
Factory inspection
Serial number
1
2
3
4
5
6
7
9
9
10
11
12
13
14| |tt||15
16
Inspection items
Shoulder axial clearance
Total clearance with bottle wall
Appearance
Surface Holes
Packing
Acetylene bottles
Batch inspection
8.1.2
Internal holes
Compressive strength
Volume Density
Porosity
Appearance
Accessories
Air tightness
Tare
Tempering test
Water bath heating Test
Simulated fire test
Usage performance test
Test method
Inspection one by one
7.1 items
7.5 items||tt| |7.1 items
7.2 items
7.3 items
7.4 items
7.6 items
7.7 items
4
A
Batch inspection
A
A
Type inspection
A
Public
A
A
4
Judgment basis
Article 6.2.4f
Article 6.2.3
Article 6.2.4
Article a~e|| tt||6.4 items
6.5 items
6.7 items
6.9.1 items
6.9.2 items
6.9.3 items||tt| |6.10 Articles
8.1.2.1 Batch
GB11638-89
According to the production sequence, no more than 500 pieces are considered as one batch. When the filler is autoclaved (hereinafter referred to as the label) ) or a special heating device (hereinafter referred to as the device), acetylene bottles in the same kettle or device must not be cross-batch. 8.1.2.2. Inspection items
All acetylene bottles leaving the factory shall be subject to batch inspection according to the items specified in Table 3. 8.1.2.3 Sampling rules
Randomly select one bottle for packing testing from each batch of acetylene bottles. 8.1.2.4 Re-inspection rules
In batch inspection items, if there is evidence that the test fails due to operational errors or testing equipment failure, it should be carried out on the same filler a.
or from the same batch of bottles Pick another one for the second test. If it passes the test, the first test can be ignored. b., batch inspection is in progress; if there are any unqualified items, two more bottles from the same batch (or device) should be selected and re-inspected according to Article 8.1.2.2. If the re-inspection results of both bottles are qualified, the batch will be deemed If the bottle is qualified, as long as one bottle still has unqualified items, the filling of the bottle (or device) will be judged to be unqualified. At this time, for the remaining kettle (or device) bottles in the batch, one bottle from each kettle (or device) is allowed to be sampled and retested according to Article 8.1.2.2. If the re-inspection result is qualified, the bottle (or device) will be deemed qualified. If there are still unqualified items, the filling of the bottle (or device) will be deemed unqualified.
8.2 Type inspection
8.2.1 Inspection conditions
When an acetylene bottle manufacturer encounters one of the following situations, it must conduct type inspection: a.
b..|| tt | | c. | | tt | | d. | Every five years of continuous bottle production, an approved acetylene bottle of a certain specification has been discontinued for more than six months and the first batch of bottles has been re-produced. The filling formula or process of an approved acetylene bottle of a certain specification has changed significantly, which may affect The performance of acetylene bottles; during normal production, when the factory inspection results are significantly different from the last type inspection, and the national quality supervision agency proposes type inspection requirements. Batch group requirements
8.2.2
The same batch of acetylene bottles submitted for type inspection shall pass the factory inspection, and the quantity shall not be less than 100. 8.2.3 Inspection items
Type inspection items are specified in Table 3.
8.2.4 Sampling rules
8.2.4.1. The quantity and status of bottles used in each inspection item of type inspection shall comply with the provisions of Table 4. Table 4
Inspection items
Filling technical indicators
Tempering
Test
Safety
Energy test
Acetylene Bottle
Drop treatment
Tempering
Water bath temperature rise test
Simulated fire test
Usage performance test
Quantity
Only
1
1
3
charge
acetone
ms
ms+Ams
ms+Ams
installation
acetylene
saturated gas under atmospheric pressure
ma
preparation
note
generally available Fill acetylene with a pressure of 0.05MPa
Check appearance, accessories, air tightness, and tare weight
8.2.4.2 The acetylene filling amount is calculated according to formula (2): GB11638-89||tt| |mA>0.208V
The calculated value is kept to one decimal place, and the remaining figures are discarded. 8.2.4.3 The quality of dissolved acetylene must meet the requirements of GB6819. 8.2.5 Re-inspection rules
8.2.5.1 During type inspection, if the factory inspection item is found to be unqualified, the re-inspection rules shall be in accordance with the corresponding provisions of Article 8.1.2.4. (2)
8.2.5.2 During type inspection, if any unqualified items are found, it is allowed to select the number of acetylene bottles specified in Table 4 from the same batch for re-inspection of the unqualified items.
8.2.5.3 If any unqualified items are still found during the re-inspection, the type inspection will be considered unqualified. 8.2.5.4. Under the circumstances a, c, d, and f of 8.2.1. If the type inspection conducted fails, the acetylene bottles of this specification are not allowed to be put into mass production, and the batch of acetylene bottles submitted for type inspection shall not The filler shall be destructively disposed of. 8.2.5.5 If the type inspection conducted under the conditions b and e of Article 8.2.1 fails, the report shall be reported to the superior competent department to determine whether the acetylene bottles of this specification that have left the factory or been sent to the warehouse and whether the acetylene bottles of this specification can continue to be produced , the superior competent department will handle it as appropriate depending on the number and severity of unqualified items.
9 Marking, coating, packaging, transportation and storage 9.1 Marking
9.1.1 Stamp mark
9.1.1.1 The shoulder of the acetylene bottle must be made according to the items and positions shown in the figure below Produce obvious, complete and clear steel stamp marks. The height of the stamp font is 8~15mm and the depth is 0.3~0.5mm. The stamped area should be smooth and without sharp corners. CH
23.
O
m27.8
V41.2
1-acetylene chemical formula, 2-acetylene bottle number, 3-steel cylinder Hydrostatic test pressure, MPa; 4-Simplified calculation minimum thickness, mm, 5-Cylinder mass, kg, 6-Manufacturer inspection mark, 7-Manufacturer code, 8-Manufacturing year and month, 9-Cylinder actual volume, L , 10 - the limited filling pressure at the reference temperature of 15°C, MPa, 11 - the tare weight of the acetylene bottle, kg; 12 - the porosity of the filler in the cylinder, % 9.1.1.2 The acetylene bottle inspection mark ring must be marked with the acetylene bottle number, Manufacturer code, manufacturer inspection mark, manufacturing year, month and other steel stamp marks, font height 5~7mm.
9.1.2 Color Marking
The surface of the acetylene bottle is white, and the words "acetylene" and "keep away from fire" are red, which should comply with the regulations of GB7144. 9.2 Coating
GB11638-89
9.2.1 The acetylene bottle must be inspected and qualified, and the surface oil, rust and other debris should be removed and kept in dry conditions before coating. 9.2.2 Putty is not allowed on the surface of acetylene bottles.
9.2.3 The coating should be uniform and firm, without defects such as bubbles, flow marks, cracks and peeling. 9.3 Packaging
9.3.1 The bottle valve side joint of the acetylene bottle should be properly sealed to prevent impurities or harmful media from entering. 9.3.2 Acetylene bottles should generally be delivered individually, and can also be packed in wooden frames or containers. 9.4 Ship
9.4.1 The transportation of acetylene bottles should comply with the regulations of the transportation department. 9.4.2 Acetylene bottles must be protected from collisions and scratches during transportation, loading and unloading. 9.5 Storage
Acetylene bottles should be stored in a ventilated, dry place without exposure to sunlight and corrosion media. 10 Product Certificate and Batch Inspection Quality Certificate 10.1 Each acetylene bottle shipped from the factory should be accompanied by a product certificate. The person recorded on the product certificate should be consistent with the production inspection records kept by the manufacturer.
10.2 The content of the product certificate shall include: a. Name or code of the manufacturer,
b. Acetylene bottle factory number, batch number and date of manufacture, manufacturing license number;
c.
d. Cylinder water pressure test pressure;
e.. Air tightness test pressure;| |tt||f. The grade and standard number of the cylinder cylinder material g.
Calculate the minimum wall thickness of the cylinder,
h.
Cylinder mass and actual volume,||tt ||i.
The porosity, bulk density and shoulder axial clearance of the filler; j. Specified filling amount of acetone,
k. Tare weight of acetylene bottle;
1
Limited filling amount of acetylene;
m: Limited filling amount when the reference temperature is 15℃ Installation pressure; n
factory inspection mark,
batch inspection quality certificate number.
o.
10.3 The content of the batch inspection quality certificate should include the batch inspection items specified in this standard. 10.4 The manufacturer should properly keep the inspection records and batch inspection quality certificates of acetylene bottles (including steel cylinders) for no less than seven years.
11 Filling of acetylene bottles
11.1 The filling of acetylene shall be carried out in accordance with the "Regulations on Filling of Dissolved Acetylene". 11.2 "The transportation and storage of acetylene bottles after filling must comply with the "Safety Supervision Regulations for Dissolved Acetylene Cylinders" and the relevant regulations of the transportation, fire protection and other departments.
A1 Safety Performance Test
A1.1 Tempering test
A1.1.1 drop treatment steps
GB11638-89
Appendix A
Acetylene bottle type inspection method
(supplement)|| tt||A1.1.1.1·Pour the test bottle into the amount of acetone specified in Table 4, and fill it with acetylene to saturate the acetone at atmospheric pressure. A1.1.1.2 Free the test bottle at a height of no less than 0.7m. Dropped onto a concrete inertial block covered with cotton fiber phenolic resin laminate for 10 consecutive times. The schematic diagram of the drop handling test device is shown in Figure A1. 00
instantaneous decoupling device
stroke height
002
oP
Soundproof village mat
25
Figure A1 Schematic diagram of drop treatment test device
.0.2
1.000||tt| |The guide device should be suitable for acetylene bottles of all diameters
The size is 5~9mm) 142L, and the concrete should be poured as a whole. The surface on which the protective board is placed should be smooth and completely level. ② The protective board is made of a 25mm thick cotton fiber phenolic resin laminate (16~18 layers/cm). , the Brinell hardness of the protective plate is 48HB (measured ball diameter is 10mm, load is 300kg) A1.1.2 Tempering test steps
The test bottle that has been dropped:
A·1.1. .2.1 Fill acetylene according to the amount specified in Table 4. A1.1.2.2 Place it in an environment of 15~20℃ for 5 days.1. During type inspection, if it is found that the factory inspection items are unqualified, the re-inspection rules shall be in accordance with the corresponding provisions of Article 8.1.2.4. (2)
8.2.5.2 During type inspection, if any unqualified items are found, it is allowed to select the number of acetylene bottles specified in Table 4 from the same batch for re-inspection of the unqualified items.
8.2.5.3 If any unqualified items are still found during the re-inspection, the type inspection will be considered unqualified. 8.2.5.4. Under the circumstances a, c, d, and f of 8.2.1. If the type inspection conducted fails, the acetylene bottles of this specification are not allowed to be put into mass production, and the batch of acetylene bottles submitted for type inspection shall not The filler shall be destructively disposed of. 8.2.5.5 If the type inspection conducted under the conditions b and e of Article 8.2.1 fails, the report shall be reported to the superior competent department to determine whether the acetylene bottles of this specification that have left the factory or been sent to the warehouse and whether the acetylene bottles of this specification can continue to be produced , the superior competent department will handle it as appropriate depending on the number and severity of unqualified items.
9 Marking, coating, packaging, transportation and storage 9.1 Marking
9.1.1 Stamp mark
9.1.1.1 The shoulder of the acetylene bottle must be made according to the items and positions shown in the figure below Produce obvious, complete and clear steel stamp marks. The height of the stamp font is 8~15mm and the depth is 0.3~0.5mm. The stamped area should be smooth and without sharp corners. CH
23.
O
m27.8
V41.2
1-acetylene chemical formula, 2-acetylene bottle number, 3-steel cylinder Hydrostatic test pressure, MPa; 4-Simplified calculation minimum thickness, mm, 5-Cylinder mass, kg, 6-Manufacturer inspection mark, 7-Manufacturer code, 8-Manufacturing year and month, 9-Cylinder actual volume, L , 10 - the limited filling pressure at the reference temperature of 15°C, MPa, 11 - the tare weight of the acetylene bottle, kg; 12 - the porosity of the filler in the cylinder, % 9.1.1.2 The acetylene bottle inspection mark ring must be marked with the acetylene bottle number, Manufacturer code, manufacturer inspection mark, manufacturing year, month and other steel stamp marks, font height 5~7mm.
9.1.2 Color Marking
The surface of the acetylene bottle is white, and the words "acetylene" and "keep away from fire" are red, which should comply with the regulations of GB7144. 9.2 Coating
GB11638-89
9.2.1 The acetylene bottle must be inspected and qualified, and the surface oil, rust and other impurities must be removed and kept in dry conditions before coating. 9.2.2 Do not put putty on the surface of acetylene bottles.
9.2.3 The coating should be uniform and firm, without defects such as bubbles, flow marks, cracks and peeling. 9.3 Packaging
9.3.1 The bottle valve side joint of the acetylene bottle should be properly sealed to prevent impurities or harmful media from entering. 9.3.2 Acetylene bottles should generally be delivered individually, and can also be packed in wooden frames or containers. 9.4 Ship
9.4.1 The transportation of acetylene bottles should comply with the regulations of the transportation department. 9.4.2 Acetylene bottles must be protected from collisions and scratches during transportation, loading and unloading. 9.5 Storage
Acetylene bottles should be stored in a ventilated, dry place, protected from sunlight and corrosion media. 10 Product Certificate and Batch Inspection Quality Certificate 10.1 Each acetylene bottle shipped from the factory should be accompanied by a product certificate. The person recorded on the product certificate should be consistent with the production inspection records kept by the manufacturer.
10.2 The content of the product certificate shall include: a. Name or code of the manufacturer,
b. Acetylene bottle factory number, batch number and date of manufacture, manufacturing license number;
c.
d. Cylinder water pressure test pressure;
e.. Air tightness test pressure;| |tt||f. The grade and standard number of the cylinder cylinder material g.
Calculate the minimum wall thickness of the cylinder,
h.
Cylinder mass and actual volume,||tt ||i.
The porosity, bulk density and shoulder axial clearance of the filler; j. Specified filling amount of acetone,
k. Tare weight of acetylene bottle;
1
Limited filling amount of acetylene;
m: Limited filling amount when the reference temperature is 15℃ Installation pressure; n
factory inspection mark,
batch inspection quality certificate number.
o.
10.3 The content of the batch inspection quality certificate should include the batch inspection items specified in this standard. 10.4 The manufacturer should properly keep the inspection records and batch inspection quality certificates of acetylene bottles (including steel cylinders) for no less than seven years.
11 Filling of acetylene bottles
11.1 The filling of acetylene shall be carried out in accordance with the "Regulations on Filling of Dissolved Acetylene". 11.2 "The transportation and storage of acetylene bottles after filling must comply with the "Safety Supervision Regulations for Dissolved Acetylene Cylinders" and the relevant regulations of the transportation, fire protection and other departments.
A1 Safety Performance Test
A1.1 Tempering test
A1.1.1 Drop treatment steps
GB11638-89
Appendix A
Acetylene bottle type inspection method
(supplement)|| tt||A1.1.1.1·Pour the test bottle into the amount of acetone specified in Table 4, and fill it with acetylene to saturate the acetone at atmospheric pressure. A1.1.1.2 Free the test bottle at a height of no less than 0.7m. Dropped onto a concrete inertial block covered with cotton fiber phenolic resin laminate for 10 consecutive times. The schematic diagram of the drop handling test device is shown in Figure A1. 00
instantaneous decoupling device
stroke height
002
oP
Soundproof village mat
25
Figure A1 Schematic diagram of drop treatment test device
.0.2
1.000||tt| |The guide device should be suitable for acetylene bottles of all diameters
The size is 5~9mm) 142L, and the concrete should be poured as a whole. The surface on which the protective board is placed should be smooth and completely level. ② The protective board is made of a 25mm thick cotton fiber phenolic resin laminate (16~18 layers/cm). , the Brinell hardness of the protective plate is 48HB (measured ball diameter is 10mm, load is 300kg) A1.1.2 Tempering test steps
The test bottle that has been dropped:
A·1.1. .2.1 Fill acetylene according to the amount specified in Table 4. A1.1.2.2 Place it in an environment of 15~20℃ for 5 days.1. During type inspection, if it is found that the factory inspection items are unqualified, the re-inspection rules shall be in accordance with the corresponding provisions of Article 8.1.2.4. (2)
8.2.5.2 During type inspection, if any unqualified items are found, it is allowed to select the number of acetylene bottles specified in Table 4 from the same batch for re-inspection of the unqualified items.
8.2.5.3 If any unqualified items are still found during the re-inspection, the type inspection will be considered unqualified. 8.2.5.4. Under the circumstances a, c, d, and f of 8.2.1. If the type inspection conducted fails, the acetylene bottles of this specification are not allowed to be put into mass production, and the batch of acetylene bottles submitted for type inspection shall not The filler shall be destructively disposed of. 8.2.5.5 If the type inspection conducted under the conditions b and e of Article 8.2.1 fails, the report shall be reported to the superior competent department to determine whether the acetylene bottles of this specification that have left the factory or been sent to the warehouse and whether the acetylene bottles of this specification can continue to be produced , the superior competent department will handle it as appropriate depending on the number and severity of unqualified items.
9 Marking, coating, packaging, transportation and storage 9.1 Marking
9.1.1 Stamp mark
9.1.1.1 The shoulder of the acetylene bottle must be made according to the items and positions shown in the figure below Produce obvious, complete and clear steel stamp marks. The height of the stamp font is 8~15mm and the depth is 0.3~0.5mm. The stamped area should be smooth and without sharp corners. CH
23.
O
m27.8
V41.2
1-acetylene chemical formula, 2-acetylene bottle number, 3-steel cylinder Hydrostatic test pressure, MPa; 4-Simplified calculation minimum thickness, mm, 5-Cylinder mass, kg, 6-Manufacturer inspection mark, 7-Manufacturer code, 8-Manufacturing year and month, 9-Cylinder actual volume, L , 10 - the limited filling pressure at the reference temperature of 15°C, MPa, 11 - the tare weight of the acetylene bottle, kg; 12 - the porosity of the filler in the cylinder, % 9.1.1.2 The acetylene bottle inspection mark ring must be marked with the acetylene bottle number, Manufacturer code, manufacturer inspection mark, manufacturing year, month and other steel stamp marks, font height 5~7mm.
9.1.2 Color Marking
The surface of the acetylene bottle is white, and the words "acetylene" and "keep away from fire" are red, which should comply with the regulations of GB7144. 9.2 Coating
GB11638-89wwW.bzxz.Net
9.2.1 The acetylene bottle must be inspected and qualified, and the surface oil, rust and other impurities must be removed and kept in dry conditions before coating. 9.2.2 Do not put putty on the surface of acetylene bottles.
9.2.3 The coating should be uniform and firm, without defects such as bubbles, flow marks, cracks and peeling. 9.3 Packaging
9.3.1 The bottle valve side joint of the acetylene bottle should be properly sealed to prevent impurities or harmful media from entering. 9.3.2 Acetylene bottles should generally be delivered individually, and can also be packed in wooden frames or containers. 9.4 Ship
9.4.1 The transportation of acetylene bottles should comply with the regulations of the transportation department. 9.4.2 Acetylene bottles must be protected from collisions and scratches during transportation, loading and unloading. 9.5 Storage
Acetylene bottles should be stored in a ventilated, dry place, protected from sunlight and corrosion media. 10 Product Certificate and Batch Inspection Quality Certificate 10.1 Each acetylene bottle shipped from the factory should be accompanied by a product certificate. The person recorded on the product certificate should be consistent with the production inspection records kept by the manufacturer.
10.2 The content of the product certificate shall include: a. Name or code of the manufacturer,
b. Acetylene bottle factory number, batch number and date of manufacture, manufacturing license number;
c.
d. Cylinder water pressure test pressure;
e.. Air tightness test pressure;| |tt||f. The grade and standard number of the cylinder cylinder material g.
Calculate the minimum wall thickness of the cylinder,
h.
Cylinder mass and actual volume,||tt ||i.
The porosity, bulk density and shoulder axial clearance of the filler; j. Specified filling amount of acetone,
k. Tare weight of acetylene bottle;
1
Limited filling amount of acetylene;
m: Limited filling amount when the reference temperature is 15℃ Installation pressure; n
factory inspection mark,
batch inspection quality certificate number.
o.
10.3 The content of the batch inspection quality certificate should include the batch inspection items specified in this standard. 10.4 The manufacturer should properly preserve the inspection records and batch inspection quality certificates of acetylene bottles (including steel cylinders) for no less than seven years.
11 Filling of acetylene bottles
11.1 The filling of acetylene shall be carried out in accordance with the "Regulations on Filling of Dissolved Acetylene". 11.2 "The transportation and storage of acetylene bottles after filling must comply with the "Safety Supervision Regulations for Dissolved Acetylene Cylinders" and the relevant regulations of the transportation, fire protection and other departments.
A1 Safety Performance Test
A1.1 Tempering test
A1.1.1 Drop treatment steps
GB11638-89
Appendix A
Acetylene bottle type inspection method
(supplement)|| tt||A1.1.1.1·Pour the test bottle into the amount of acetone specified in Table 4, and fill it with acetylene to saturate the acetone at atmospheric pressure. A1.1.1.2 Free the test bottle at a height of no less than 0.7m. Dropped onto a concrete inertial block covered with cotton fiber phenolic resin laminate for 10 consecutive times. The schematic diagram of the drop handling test device is shown in Figure A1. 00
instantaneous decoupling device
stroke height
002
oP
Soundproof village mat
25
Figure A1 Schematic diagram of drop treatment test device
.0.2
1.000||tt| |The guide device should be suitable for acetylene bottles of all diameters
The size is 5~9mm) 142L, and the concrete should be poured as a whole. The surface on which the protective board is placed should be smooth and completely level. ② The protective board is made of a 25mm thick cotton fiber phenolic resin laminate (16~18 layers/cm). , the Brinell hardness of the protective plate is 48HB (measured ball diameter is 10mm, load is 300kg) A1.1.2 Tempering test steps
The test bottle that has been dropped:
A·1.1. .2.1 Fill acetylene according to the amount specified in Table 4. A1.1.2.2 Place it in an environment of 15~20℃ for 5 days.2. Do not put putty on the surface of acetylene bottles.
9.2.3 The coating should be uniform and firm, without defects such as bubbles, flow marks, cracks and peeling. 9.3 Packaging
9.3.1 The bottle valve side joint of the acetylene bottle should be properly sealed to prevent impurities or harmful media from entering. 9.3.2 Acetylene bottles should generally be delivered individually, and can also be packed in wooden frames or containers. 9.4 Ship
9.4.1 The transportation of acetylene bottles should comply with the regulations of the transportation department. 9.4.2 Acetylene bottles must be protected from collisions and scratches during transportation, loading and unloading. 9.5 Storage
Acetylene bottles should be stored in a ventilated, dry place, protected from sunlight and corrosion media. 10 Product Certificate and Batch Inspection Quality Certificate 10.1 Each acetylene bottle shipped from the factory should be accompanied by a product certificate. The person recorded on the product certificate should be consistent with the production inspection records kept by the manufacturer.
10.2 The content of the product certificate shall include: a. Name or code of the manufacturer,
b. Acetylene bottle factory number, batch number and date of manufacture, manufacturing license number;
c.
d. Cylinder water pressure test pressure;
e.. Air tightness test pressure;| |tt||f. The grade and standard number of the cylinder cylinder material g.
Calculate the minimum wall thickness of the cylinder,
h.
Cylinder mass and actual volume,||tt ||i.
The porosity, bulk density and shoulder axial clearance of the filler; j. Specified filling amount of acetone,
k. Tare weight of acetylene bottle;
1
Limited filling amount of acetylene;
m: Limited filling amount when the reference temperature is 15℃ Installation pressure; n
factory inspection mark,
batch inspection quality certificate number.
o.
10.3 The content of the batch inspection quality certificate should include the batch inspection items specified in this standard. 10.4 The manufacturer should properly keep the inspection records and batch inspection quality certificates of acetylene bottles (including steel cylinders) for no less than seven years.
11 Filling of acetylene bottles
11.1 The filling of acetylene shall be carried out in accordance with the "Regulations on Filling of Dissolved Acetylene". 11.2 "The transportation and storage of acetylene bottles after filling must comply with the "Safety Supervision Regulations for Dissolved Acetylene Cylinders" and the relevant regulations of the transportation, fire protection and other departments.
A1 Safety Performance Test
A1.1 Tempering test
A1.1.1 Drop treatment steps
GB11638-89
Appendix A
Acetylene bottle type inspection method
(supplement)|| tt||A1.1.1.1·Pour the test bottle into the amount of acetone specified in Table 4, and fill it with acetylene to saturate the acetone at atmospheric pressure. A1.1.1.2 Free the test bottle at a height of no less than 0.7m. Dropped onto a concrete inertial block covered with cotton fiber phenolic resin laminate for 10 consecutive times. The schematic diagram of the drop handling test device is shown in Figure A1. 00
instantaneous decoupling device
stroke height
002
oP
Soundproof village mat
25
Figure A1 Schematic diagram of drop treatment test device
.0.2
1.000||tt| |The guide device should be suitable for acetylene bottles of all diameters
The size is 5~9mm) 142L, and the concrete should be poured as a whole. The surface on which the protective board is placed should be smooth and completely level. ② The protective board is made of a 25mm thick cotton fiber phenolic resin laminate (16~18 layers/cm). , the Brinell hardness of the protective plate is 48HB (measured ball diameter is 10mm, load is 300kg) A1.1.2 Tempering test steps
The test bottle that has been dropped:
A·1.1. .2.1 Fill acetylene according to the amount specified in Table 4. A1.1.2.2 Place it in an environment of 15~20℃ for 5 days.2. Do not put putty on the surface of acetylene bottles.
9.2.3 The coating should be uniform and firm, without defects such as bubbles, flow marks, cracks and peeling. 9.3 Packaging
9.3.1 The bottle valve side joint of the acetylene bottle should be properly sealed to prevent impurities or harmful media from entering. 9.3.2 Acetylene bottles should generally be delivered individually, and can also be packed in wooden frames or containers. 9.4 Ship
9.4.1 The transportation of acetylene bottles should comply with the regulations of the transportation department. 9.4.2 Acetylene bottles must be protected from collisions and scratches during transportation, loading and unloading. 9.5 Storage
Acetylene bottles should be stored in a ventilated, dry place, protected from sunlight and corrosion media. 10 Product Certificate and Batch Inspection Quality Certificate 10.1 Each acetylene bottle shipped from the factory should be accompanied by a product certificate. The person recorded on the product certificate should be consistent with the production inspection records kept by the manufacturer.
10.2 The content of the product certificate shall include: a. Name or code of the manufacturer,
b. Acetylene bottle factory number, batch number and date of manufacture, manufacturing license number;
c.
d. Cylinder water pressure test pressure;
e.. Air tightness test pressure;| |tt||f. The grade and standard number of the cylinder cylinder material g.
Calculate the minimum wall thickness of the cylinder,
h.
Cylinder mass and actual volume,||tt ||i.
The porosity, bulk density and shoulder axial clearance of the filler; j. Specified filling amount of acetone,
k. Tare weight of acetylene bottle;
1
Limited filling amount of acetylene;
m: Limited filling amount when the reference temperature is 15℃ Installation pressure; n
factory inspection mark,
batch inspection quality certificate number.
o.
10.3 The content of the batch inspection quality certificate should include the batch inspection items specified in this standard. 10.4 The manufacturer should properly keep the inspection records and batch inspection quality certificates of acetylene bottles (including steel cylinders) for no less than seven years.
11 Filling of acetylene bottles
11.1 The filling of acetylene shall be carried out in accordance with the "Regulations on Filling of Dissolved Acetylene". 11.2 "The transportation and storage of acetylene bottles after filling must comply with the "Safety Supervision Regulations for Dissolved Acetylene Cylinders" and the relevant regulations of the transportation, fire protection and other departments.
A1 Safety Performance Test
A1.1 Tempering test
A1.1.1 Drop treatment steps
GB11638-89
Appendix A
Acetylene bottle type inspection method
(supplement)|| tt||A1.1.1.1·Pour the test bottle into the amount of acetone specified in Table 4, and fill it with acetylene to saturate the acetone at atmospheric pressure. A1.1.1.2 Free the test bottle at a height of no less than 0.7m. Dropped onto a concrete inertial block covered with cotton fiber phenolic resin laminate for 10 consecutive times. The schematic diagram of the drop handling test device is shown in Figure A1. 00
instantaneous decoupling device
stroke height
002
oP
Soundproof village mat
25
Figure A1 Schematic diagram of drop treatment test device
.0.2
1.000||tt| |The guide device should be suitable for acetylene bottles of all diameters
The size is 5~9mm) 142L, and the concrete should be poured as a whole. The surface on which the protective board is placed should be smooth and completely level. ② The protective board is made of a 25mm thick cotton fiber phenolic resin laminate (16~18 layers/cm). , the Brinell hardness of the protective plate is 48HB (measured ball diameter is 10mm, load is 300kg) A1.1.2 Tempering test steps
The test bottle that has been dropped:
A·1.1. .2.1 Fill acetylene according to the amount specified in Table 4. A1.1.2.2 Place it in an environment of 15~20℃ for 5 days.
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