HG/T 2390-1992 Detailed Rules for Quality Classification of Horizontal Storage Tanks
Some standard content:
Chemical Industry Standard of the People's Republic of China
HG/T2390-92
Detailed Rules for the Quality Classification of Horizontal Storage Tanks
Published on September 15, 1992
Ministry of Chemical Industry of the People's Republic of China
Implementation on July 1, 1993
Chemical Industry Standard of the People's Republic of China
Detailed Rules for the Quality Classification of Horizontal Storage Tanks
1. Subject Content and Scope of Application
This standard specifies the detailed rules for the quality classification of horizontal storage tanks. This standard applies to single-layer steel welded horizontal storage tanks (hereinafter referred to as: storage tanks). 2 Reference standards
GB1.50 Steel pressure vessels
HG/T2388 General rules for quality classification of steel welded pressure vessels JB2536 Pressure vessel painting, packaging and transportation JB4708 Welding process assessment of steel pressure vessels 3 Basic requirements for product quality classification
HG/T 2390--92
$.! This standard is the basis for the quality inspection of the enterprise quality inspection department, and can also be used by the national and departmental quality supervision and inspection agencies to conduct product quality supervision and random inspection or quality inspection.
3.2 The classification and level of product quality characteristics shall comply with the provisions of Chapter 4 of HG/T2388. .3.3 The product quality grade assessment shall comply with the provisions of Chapter 5 of HG/T2388. 3.4 When conducting quality inspection on products, the inspected party shall submit relevant information of the inspected products and provide all technical documents and quality management documents of the selected products according to the requirements of the inspecting party. 3.5 If the parts and components can be inspected on the product, they should be inspected on the sampled products. Otherwise, parts and components equivalent to the number of sampled products should be inspected from the products.
4 Product Inspection Rules
4.1: The material part should comply with the provisions of Table 1. 4.2 The welding part should comply with the provisions of Table 2. 4.3 The assembly part should comply with the provisions of Table 3. 4.4 The machined part should comply with the provisions of Table 4. 4.6 The static test and accessories should comply with the provisions of Table 5. 4.8 The paint, packaging and export documents should comply with the provisions of Table B. Ministry of Chemical Industry of the People's Republic of China 199209-15 approved 1993-07-01 implementation
Quality plate characteristics
Manhole neck
Manhole cover
Manhole flange
Reinforcement plate
(DH≥250)
Manhole gland inspection
Welding materials
(welding rod,
Quality category
Wire, flux
HG/T2380—$2
Table 1 Material part
Quality characteristic index
(1) To reach B level
(2) Before feeding, an appearance inspection shall be carried out. If necessary, non-destructive testing shall be carried out and corresponding records and reports shall be made
Inspection method
(i) To reach E level
(1) The material (including substitutes) shall be checked
against the drawings, GB150 and the performance certificate
(2) There shall be a purchase description|
and the "Safety of Pressure Vessels"
(1) To reach level Requirements (2) There is a purchase specification and the requirements of the Technical Supervision Regulations (hereinafter referred to as the "Regulations"). (2) Acceptance and review are carried out in accordance with the requirements of the "Regulations". Its control exemption certificate (including mark transfer) has traceable evaluation results. (1) Comply with the welding process and the corresponding standards and certificates. (2) Control is carried out in accordance with the "Regulations". Its exemption certificate has traceable evaluation results. |tt||Grade
Quality characteristics
Quality characteristics
Category
2.1 Welder qualification
2.2 Welding process
2.3 Product welding
Welded joint
For the quality of the part
HG/T2390-92
Table 2 Welding part
Quality basic characteristic index
Inspection method
The welding of pressure-bearing components must be carried out by workers holding valid certificates of corresponding categories issued by the labor department. Complete welding process assessment and comply with the provisions of JB408. The production and performance report of the blast test plate comply with the provisions of Article 10.5 of GB150. Its control hazard certificates are complete and traceable. (1) No radiographic inspection requirements and follow-up results comply with the diagram and the provisions of GB150. (2) The same part shall not be returned more than once. (3) The rate of 100% radiographic inspection level 1 film (by number of films) is not less than 85%, and the rate of two-part radiographic inspection level 1 film is not less than 85%. Grade
film rate (by number of films) is not less than 85%
(4) The pass rate of one-time flaw detection (by number of films) is not less than
(1) No camera tooth requirements and the results meet
circle and GB150
(2) One part can be returned no more than twice
(3) 100% X-ray
flaw detection 1 The grade I film rate (by number of films) is not less than 80%. The grade I film rate (by number of films) is not less than 80%. (4) The one-time inspection rate (by number of films) is not less than (1) No inspection requirements and the results are in accordance with the figure and GB150. (2) The same part is repeated. ||File certificate
Verification exemption
Verification exemption
Verification of original
Non-destructive testing data
and symptom films
When necessary, extract
the data meets the requirements of the detection
assessment results
excellent
quality sustainability
quality characteristics
property category
weld seam reinforcement
Class A, B
welding width
2. 7C 、D Class
Seam quality
HG/T2390-92
Continued Table 2
Quality characteristics index
1>Conform to GB160
(1)Conform to GB160
Inspection method
Conform to GB150 Specification for weld measurement
(2)The same weld reinforcement height 0
(2)The same weld reinforcement height
The difference is not greater than /2
(3)The reinforcement meets the following
requirements,
Plate thickness (5)
Coal seam reinforcement
128250~2
Not greater than /2
(1)The width of the weld is not large (1)The width of the weld is not greater than the outer groove Add a card along the width to the outer edge width of the groove
(2) The width of the same weld is not more than 4
(2) The same weld width (3) The width of the same type of weld is not more than 8 and the difference is not more than 3
(3) The width of the same type of weld is not more than 5
(1》The weld leg size complies with the original
(1) The weld leg size complies with
1(1) The weld leg size complies with
drawings and GB150's certificates, welding
drawings and GB150's drawings and GB150's [
(2) When the weld leg size is small,
(2) When the weld leg size is small (2) When the weld leg size is less than or equal to 8, it is positive or equal to 8, it is positive or equal to 8 , its positive
deviation is 3, negative deviation is 8, negative deviation is 3, negative deviation is 1: when the foot size is 1.51 when the welding foot size is 2 when the welding foot size is greater than 8 less than 12 inches greater than 8 less than 12 greater than 8 less than 12 its positive deviation is 4, negative, its positive deviation is when, its positive deviation is 1, when foot 4, negative deviation is 1-5;
4, negative deviation is 2 when
seam detector
special most its
2 when the welding foot size is greater than bZxz.net
foot size is greater than equal to
size is greater than or equal to 12
equal to 12, its positive deviation is greater than 12 when its positive deviation, its positive deviation is
4, negative deviation is 1.5
partial is 4, negative deviation is 4,Negative deviation is 3 (3) According to the design requirements, non-destructive testing is performed and meets the design quality requirements. Non-destructive testing is performed and meets the requirements. The same type of welds refer to welds with different groove types, sizes, and welding methods. Inspection and evaluation results Grade margin Quality maintenance Appearance of cracks 2.9 Weld undercut 2.10 No detection teeth Marking documents 2.11 Post-weld heat treatment Welding records 2.13 Welder's stamp Quality and quality category HG/T 2380—92
Continued Table 2
Quality Characteristics Index
(1) The weld surface shall be free from defects such as cracks, pores, pits and slag inclusions, and shall not retain molten metal and spatter
(2) The weld surface shall be free from grooves, ridges, sudden rises and depressions
Inspection method
The weld surface shall be free from defects such as cracks, pores, double pits and slag inclusions, and shall not retain molten metal and spatter Splash
The weld hoop of the pressure-bearing component is not allowed to have undercuts, which shall comply with the provisions of the drawing group and
GB150·
(1) The non-destructive testing certificate shall comply with the provisions of G8150(2) There shall be a non-destructive testing marking part map
(3) The marking is clear and the position is correct (when the drawing and process regulations do not allow steel stamping, there shall be a traceable certificate)
(1) There shall be heat treatment process specifications that comply with the surrounding samples (including heat treatment temperature, moisturizing time, cooling rate, furnace temperature, installation position and quantity of thermoelectric, etc.)
(2) There shall be Automatic measurement records and reports of temperature control in accordance with process specifications
Special measuring tools
Verification vouchers
(I) Have the processing specifications and process specifications (including measurement records and
processing temperature, insulation time, cooling speed, outlet temperature
installation position and quantity of thermocouples, etc.) in accordance with process specifications>
(2) Have the measurement records in accordance with process specifications |Records and reports
Comply with the requirements of welding process specifications and be complete and correct (1) Have welder stamps on the welds of the main pressure-bearing components of the vessel. Check the actual object
(2) The stamps are clear and the parts meet the process requirements (when the drawings, process regulations and certificates
do not allow stamps, traceable exemption materials should be available) Inspection
Determination results
Grade
Name
3.1 Bright body
3.2 Bright body
3.3 Continuation
3. 4 Tan hoop
3.5 Bright body
1.6 Pipe mouth
3.7 Equipment
Conform to the drawing and GB150 specification
Conform to the drawing and GB150, Class A welding
No opening
126202
20吉2
40<8n≤50 ≤2
0,196a
HG/T 2390--2
Table 3 Fabric
Quality characteristic index
Conform to the drawing and GB150
1/88n-2≤8
5-141186-2
and not more than and not more than
and not more than 10
Not less than the nominal thickness minus the negative deviation of the plate making Drawing and GB150, Dimensional tolerance
Not more than the specified value of the corresponding standard
Conform to the drawing and the corresponding standard
441/55
or 1/—1
1/85——1
and not more than 18
sg0. 256n
0, 5ta
and not more than 10
conform to the drawing and GB150, the size of the case conforms to the corresponding standard and is not more than 20
check the ring storage result
slow
quality characteristics
name
3. 8 Circumferential weld angle tolerance 3.9 Longitudinal weld angle tolerance 3.11 Head forming quality 8.12 Position of flange screw holes relative to the center line of the main axis of the equipment 3.13 Flange surface perpendicular to the main axis of the pipe or body 3.14 Pump circulation port position and apparent size 3.15 Outlet position 3. 16|Liquid inlet pull position
3.17 Gas grid space
and butterfly hole
3.18 Surface gauge position
Measurement size
3.10 Anjin valve position
HG/T2390-92
Continued Table 3
Quality characteristic index
or 0. 10%+1, and not less than: 4
0.108+1.5, and not large
Conform to 0B150, the surface damage should comply with the provisions of GB150, and the four-slip residual
Conform to the drawing and GB150 Section
10. 2. 2. 3 In addition, the maximum deviation of the head shape is 1%Di, the wrinkle detection degree is not greater than 1, and there is no inspection and assessment conclusion. The inspection force method is ≤0.105+2, and is not greater than Di and does not shoot. The hand 300 sample is not less than 300 rulers. The thickness gauge complies with the drawings and GB150 Section 10.2.2.3. Complies with the drawings and GB150 Section 10, 2.3.7 The provisions of the article shall comply with the provisions of the drawing and GB150. The chord length is not small. The DI model is steel ruler. Steel tape measure. Special measurement code. Teaching specification. Quality maintenance. Manhole bolt. Manhole flange. Manhole cover. Manhole legal interest. Adjacent or Tolerance of chord length between any two holes, manhole flange, center circle diameter 4.6, manhole plate, center circle diameter tolerance, manhole plate, adjacent or any two holes, chord length tolerance 1.8, manhole flange, sealing surface quality tt||Taking over flange
and flange seal
cover quality
quality invitation
property category
HG/T2390-92
Table 4 Machining
quality characteristic index
Conform to the drawing and B150
Conform to the drawing and GB150
Conform to the drawing, no scratches
, adopt Effective protection
protection measures
inspection method
square ruler
special children's tools
special measuring tools
conform to the sample, no diameter
direction penetration, and surface roughness
take protective measures
comparison sample
assessment of shrinkage.
Grade
Quality
Strength test
Airtightness test
Quality characteristic
Category
Purchased safety
Accessories and main
Matching accessories
5. 1 Self-made safety
Accessories and main
Matching accessories
HG/T2390-92
Table 5 Performance test and accessories
Quality characteristic index
(1) Conform to the drawing and
Conform to the drawing and Article 10.9 of GB150
GB150 Article 10.9
Service provisions
(2) Unrepaired -
pass the first test
(1)with complete quality certificate
(1)with complete quality certificate
(2)with re-test certificate
with purchase instructions
(3) Inspection method: Verification certificate (if necessary, with manufacturer's research and development quality certificate, with complete design, testing data and qualification certificate) 6. Paint, packaging and factory documents Quality characteristics of the tank interior Cleanliness 6.2 Anti-rust, oil t||Paint and machinery
Processing surface
Protection
.6.4 Inscription
Property category
6.5 Factory documents
Quality characteristic indicators
Conform to the requirements of the drawings and GB150, no water accumulation and residues. Conform to the drawings GB150, the paint surface is smooth, the color is even and beautiful. Verification certificate
Verification certificate
Inspection method||tt ||Check the physical object
Conform to the drawing GB150 and the "Set Specifications\"Conform to the four GB150 and "Narrow Specifications" regulations, and meet the requirements (1) Conform to the provisions of GB150 and the "Narrow Specifications" (2) Complete, complete and correct
Check the materials
Evaluation nest
Evaluation results
Level grid
5 Product quality inspection summary table
HG/T 2390—92
The product quality inspection summary table should be filled in Table 7 and should comply with the provisions of Article B3.5 of HG/T2388. Table 7 Product Quality Inspection Summary Table
Quality Characteristics
Product Quality Grade Assessment
Excellent Grade
Inspection Items
Grade Qualified Grade Unqualified Grade"Excellent Grade
Product Number:
Grade Item Rate%
Excellent Grade + Grade
Qualified Grade
Use the data in Table ? to compare with Table 3 in HG/T2888 to assess the product quality grade and fill in Table 8. The formula should conform to the specification of HG/T2388 Table 8 Product quality rating results
Manufacturer name
Product name
Product model
Product number
Completion date
Product quality
Grade rating
Additional instructions:
Product drawing number
Factory number
This standard is proposed by China Chemical Equipment Corporation. This standard is under the jurisdiction of the Chemical Machinery Research Institute of the Ministry of Chemical Industry and the China Chemical Equipment Association. This standard was drafted by Shanghai Chemical Machinery No. 1 and Jiangxi Shizhou Chemical Machinery Factory. The main drafters of this standard are Wei Yongbiao, Zhou Weiming, Zhang Erli, Mu Jiewen and Xiong Longfei. This standard is interpreted by the chemical machinery and equipment standardization technical unit of the Ministry of Chemical Industry. 10.
People's Republic of China
Chemical Industry Standard
Detailed Rules for Horizontal Storage Quality Classification
HG/T 2390-92
Editor China National Chemical Equipment Corporation
Postal Code 100011
Printing Beijing Institute of Chemical Technology Printing Factory
Copyright reserved
No reproduction
Format 880×1230
First edition in September 1995
18,000 words
First printing in September 1995
-26-05
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