Some standard content:
JB/T6219-1999
This standard is a revision of JB/T6219-92 "Technical Conditions for Industrial Clothes Dryers". This standard has the following changes compared with the original JB/T6219-92: 1. The original standard name "Technical Conditions for Industrial Clothes Dryers" is changed to "Industrial Clothes Dryers". 2. Add the reference standard introduction in Chapter 2 of the original standard. 3. Add the "Definition" clause in Chapter 3 of the standard. 4. Modify the content of 3.1.3 of the original standard.
5. Add the original standard 3.2.1 industrial clothes dryer specifications "60kg, 80kg, 90kg\. 6. The original standard 3.3 "The ratio of the rated volume of the industrial clothes dryer to the rated dry clothes capacity is within the range of 18~25L/kg" is changed to "The ratio of the rated volume of the industrial clothes dryer to the rated dry clothes weight is the volume ratio should not be less than 18L/kg. Modify the original standard 4.2 Drying performance indicators. 7
Modify the noise performance index in 4.3 of the original standard. 8
9 The original standard 4.5 "Energy consumption ratio: the ratio of the amount of electricity or steam consumed by the industrial dryer to evaporate per kilogram of water, and its value should not exceed the provisions of Table 2" is changed to "Energy consumption. The amount of electricity and steam consumed by the industrial dryer to evaporate per dry gram of water. Its electricity consumption and steam consumption should not exceed the provisions of Table 2", and modify the performance index. :10 The remarks in the original standard 4.8 are placed in 6.8. 11 Add 5.9 Appearance inspection clause.
12 Add "steam flow meter, single-phase electric energy meter" to the original standard 5.2. 13 The original standard 5.6.1 \kWh\ is changed to \E", and \E is added—the amount of electricity consumed in drying the rated weight of fabric in 1 hour, kWh: \. 14 The standard 6.9 appearance inspection method is added.
The original standard 6.1.1 "Before the product leaves the factory, it must be inspected for items 1, 6.9, and 10 specified in Table 3" is changed to "Before the product leaves the factory, it must be inspected according to the items specified in Table 3". 16 The standard Chapter 8 Instructions for Use is added. 17 The original standard 7.2.3 is cancelled.
From the date of implementation, this standard will also replace JB/T6219-92. The transition period of this standard is recommended to be Six months. This standard was proposed and coordinated by Guangzhou Electrical Science Research Institute. The responsible organization for revising this standard is Guangzhou Electrical Science Research Institute. The participating organizations for revising this standard are Jiangsu Sea Lion Machinery Group Co., Ltd., Guangzhou Washing Machine Industrial Co., Ltd., Guangzhou Sancai Washing Equipment Co., Ltd., Wuxi Little Swan Sutai Washing Machinery Co., Ltd., and Guangdong Shunde Lunjiao Xinli Washing Machinery Factory. The main drafters of this standard are Sun Enping, Lu Qing, Liang Guowei, Li Jianda, Zhang Jianchang, and Tang Rongfa. This standard is entrusted to Guangzhou Electrical Science Research Institute for interpretation. 56
1 Scope
Machinery Industry Standards of the People's Republic of China
Industrial Clothes Dryers
Commercial Laundry air driers
JB/T6219—1999
Replaces JB/T6219—92
This standard specifies the product classification, basic parameters, technical requirements, test methods, inspection rules, marking, instruction manual, packaging, transportation and storage of industrial or commercial clothes dryers (hereinafter referred to as industrial clothes dryers). This standard applies to industrial clothes dryers and dry cabinets (boxes) with a rated dry fabric weight of 6kg to 200kg. 2 Reference standards
The following standards contain the following provisions, The clauses of this standard are constituted by reference in this standard. At the time of publication of the standard, the versions shown are valid. All standards will be revised. Parties using this standard should explore the possibility of using the latest versions of the following standards. GB191—1990
GB/T4111993
GB/T2423.3—1992
GB/T2423.17-—1993
GB/T3768--1996
GB/T6388—1986
GB/ T9969.1—1988
JB6238-1992
3 Definitions
This standard adopts the following definitions.
Packaging storage and transportation pictorial signs
Cotton printed and dyed cloth
Basic environmental test procedures for electrical and electronic products Test Ca: Constant damp heat test method Basic environmental test procedures for electrical and electronic products Test Ka: Salt test method Acoustic sound pressure method for determining the sound power level of noise source Simple method using envelope measurement surface above the reflecting surface
Transport packaging delivery and receipt signs
Industrial products Product Instructions General Principles
Safety Requirements for Industrial Dryers
Automatic Industrial DryerscommercialautomaticlaundryairdriersIndustrial dryers that put fabrics into the dryer drum, and the whole process from start to end of drying is completed according to the pre-set program. 3.2Common Industrial DryerscommercialcommonlaundryairdriersIndustrial dryers that put fabrics into the dryer drum, and the temperature and time of the drying process need to be manually controlled. 3.3Steam Heating Industrial DryerscommercialsteamheatinglaundryairdriersIndustrial dryers that use steam heating to dry fabrics. 3.4Electric Heating Industrial DryerscommercialelectricheatinglaundryairdriersIndustrial dryers that use electric heating to dry fabrics. 4 Product classification
4.1 Classification
Approved by the State Bureau of Machinery Industry on August 6, 1999, and implemented on January 1, 2000
JB/T6219-1999
4.1.1 Industrial clothes dryers and drying cabinets (boxes), indicated by the Chinese phonetic letter "G". 4.1.2 According to the degree of automation
a) Ordinary type, indicated by the Chinese phonetic letter "p": b) Automatic type, indicated by the Chinese phonetic letter "z". 4.1.3 According to the heating method
a) Steam heating type, indicated by the Chinese phonetic letter "z": b) Electric heating type, indicated by the Chinese phonetic letter "D". c) There are two types of heating: electric heating and steam heating. They are indicated by the Chinese phonetic letter "D (Z". 4.2 Basic parameters
4.2.1 Specifications of industrial dryers
According to the rated dry fabric weight, they are divided into: 6, 8, 10, 15, 20 25, 30, 35. 40 45. 50. 60, 70, 80, 90, 100 120, 150, 180, 200 kg.
4.2.2 Power supply
The rated frequency is 50 Hz.
Rated voltage: single-phase voltage is 220 V; three-phase voltage is 380 V. 4.3 Volume ratio
Rated voltage of industrial dryers The volume ratio of the volume to the rated dry clothes weight shall not be less than 18L/kg. 4.4 Models and meanings of industrial dryers
The specifications of industrial dryers shall be expressed in accordance with the provisions of 4.2.1 for the type code of household electrical appliances, in accordance with the provisions of 4.1.2 for the series code of household electrical appliances, in accordance with the provisions of 4.1.3 for the group code of household electrical appliances, and in accordance with the provisions of 4.1.1 for the example: GDZ50
means: 50kg automatic electric heating industrial dryer. If the industrial dryer has special functions, a derived code may be added after the specification. 5 Technical requirements
5.1 Industrial dryers shall comply with the requirements of this standard and JB6238, and Manufactured in accordance with the technical documents and drawings approved by the prescribed procedures. 5.2 Drying rate
The industrial dryer shall be tested according to the method specified in 6.3, and its drying rate shall not be less than 85%. 5.3 Noise
The industrial dryer shall be tested according to the method specified in 6.4, and its sound power level (A-weighted) noise shall not be greater than that specified in Table 1. 5.4 Vibration
The industrial dryer shall be tested according to the method specified in 6:5, and its maximum value shall not be greater than 7.1mm/s. 5.5 Energy consumption
Rated dry weight kg
>40~100
>100~200
JB/T6219-199 9
Sound power level (A-weighted) Noise dB
The amount of electricity and steam consumed by industrial dryers for evaporating each kilogram of water shall be tested according to the method specified in 6.6. The electricity consumption and steam consumption shall not exceed the provisions of Table 2.
Heating method
Electric heating
Steam heating
5.6--General structure
>100~200
tkwh/kg
Electricity consumption
5.6.1 The fasteners and other parts used in industrial dryers shall comply with the provisions of relevant national standards. Steam consumption kg/kg
5.6.2 The inner surface of the drum or cabinet (box) of the industrial dryer that contacts the fabric should be smooth, free of burrs and sharp edges, and the fabric should not be pinched or damaged. www.bzxz.net
5.6.3 The welding and riveting joints in the industrial dryer must be smooth and firm, without looseness, desoldering and cracks. 5.6.4 The observation window of the industrial dryer should be flat, clear and transparent, and can withstand the changes in the drying temperature without breaking or deformation. 5.6.5: There must be a drying temperature indicator on the front of the industrial dryer, and there should be a temperature control device and an over-temperature protection device for electric heating. 5.6.6 The radiator used for steam heating in the industrial dryer should comply with the provisions of relevant standards, and must be stated in the product manual. A pressure indicator and safety device are installed at a conspicuous place on the steam main pipeline. 5.6.7 The electric heating components used for electric heating in the industrial dryer should comply with the provisions of relevant standards. 5.6.8 The lint collector in the industrial dryer should ensure easy cleaning. 5.6.9 The structural parts, air ducts, insulation and covering layers of various components in industrial clothes dryers shall not be made of flammable materials or materials that are harmful to human health. 5.7 The nameplates and signs on the electroplated parts and shells of industrial clothes dryers shall be tested according to the method specified in 6.7. After the test, there shall be no defects such as exposed bottom, pinholes, peeling of electroplating layer, rust, bubbling, obvious spots on the electroplated parts, and there shall be no obvious rust spots on the main surfaces. The writing on the nameplates and signs shall still be clear and shall not fall off or deform. 5.8 The painted or sprayed parts of industrial clothes dryers shall not have obvious bubbles, flow marks, primer exposure, wrinkles and cracks after being tested according to the method specified in 6.8.
5.9 Appearance inspection
Industrial clothes dryers shall be inspected according to the method in 6.9. a) The surface of the electroplated parts should be smooth and uniform in color, without exposed bottom, pinholes, peeling of electroplating layer, bubbling, obvious spots and scratches: b) Nameplates and signs should be firmly installed;
c) The surface of painted and sprayed parts should be uniform in color, without exposed primer, wrinkles, bubbles, flow marks, scratches and shrinkage. 5.10 Continuous operation test
6. Test method
6.1 Test conditions
JB/T6219-1999
The test environment should be free of external strong electricity, magnetic field interference and harmful gases. When conducting the test on site, the distance between the test machine and the surrounding walls should be greater than 3m or placed in an open outdoor square with a flat and hard ground. When testing in an open outdoor place, the wind speed should not exceed 3m/s. For steam-heated industrial dryers, the steam pressure should be within the range of 0.4~0.6MPa. 6.2 Accuracy of test instruments and meters
Voltmeter
Single-phase energy meter
Three-phase energy meter
Thermometer
Sound level meter
Vibration measuring instrument
Steam flow meter
Timer
TGT platform scale
Sensitivity 50g
6.3 Determination of drying rate of industrial clothes dryer
6.3.1 For the determination of drying rate of industrial clothes dryer, the load fabric used is 1130 pure cotton bleached medium plain fabric specified in GB/T411, with warp yarn of 21 yarns±2 yarns, weft yarn of 21 yarns±2 yarns, and width greater than 800mm. 6.3.2 Cut the pure white medium plain fabric in 6.3.1 according to the size of the bed sheet in Figure 1, the shirt in Figure 2 and the napkin in Figure 3, add a shrinkage rate of 3.5%, and add the two layers of curling edges (10mm in total) shown by the dotted lines in the figures, and sew them neatly and firmly to make standard load fabric. （)S
（）S
5 (curled edge)
Figure 1 Bedsheet
5 (curled edge)
Double-layer stitching
JB/T6219-1999
5 (six-sided curled edge)
Figure 2 Shirt
5 (four-sided hem)
Figure 3 Napkin
Double-layer stitching
6.3.3 The sewn standard load fabric should be placed in an industrial washing machine, with the rated water volume of the dry fabric water bath ratio and 5g of detergent per liter of water, washed for 30 minutes for desizing, rinsed for 5 minutes each time, rinsed three times in total, dehydrated, dried and placed in a dry place for use. 6.3.4 The standard load ratio is 1 bedsheet, 2 shirts and 18 napkins as a set. 6.3.5 Take the whole set of fabrics specified in 6.3.4 as a unit, take 1.2 times the rated dry weight of the industrial dryer to be tested, and put it into the industrial dryer for drying. Weigh it every 30 minutes until the change between two consecutive weighing values is no more than 1%, then immediately take it out and put it into a large nylon bag with the weighed weight, and weigh the fabric according to the rated dry weight of the industrial dryer. The insufficient or excessive weight should be adjusted with a napkin. Soak the fabric in water for 10 minutes and then dehydrate it until the moisture content of the fabric is 80%. If the moisture content is insufficient, add water evenly using the flower wine method. When the industrial dryer is heated to 60℃ at the center of the air outlet under no load, put the fabric into the industrial dryer for testing, and start the timer at the same time. After running for 1 hour, take out the fabric immediately and put it into a large nylon bag for weighing. 6.3.6 Calculation of drying rate
G= (1 ~ 82 = 81) × 100%
Where: G—dryness, %;
g—rated weight of dry fabric, kg;
g—weight of fabric after 1 hour of drying, kg. The measured dryness rate of fabric shall comply with the provisions of 5.2. 6.4 Determination of noise of industrial dryer
6.4.1 While determining the drying rate, measure its noise in accordance with the provisions of GB/T3768. 6.4.2 When the industrial dryer is in rated state, the parallelepiped measuring surface is used to measure the sound pressure level (A-weighted) noise at a distance of 1m, and the sound power level noise value is calculated. The value shall comply with the provisions of 5.3. 6.5 Vibration measurement of industrial dryers
JB/T6219-1999
When the industrial dryer is in rated state, after the operating speed reaches a stable state, the vibration speed of the central part of the front, rear, left and right sides of the body is measured with a vibration measuring instrument, which shall comply with the provisions of 5.4. 6.6 Determination of energy consumption
When the industrial dryer is in rated state, a single-phase electric energy meter or a three-phase electric energy meter, a steam flow meter and a timer are used to measure the amount of electricity and steam consumed in 1h of operation, and the following formulas are used to calculate them respectively, which shall comply with the provisions of 5.5. 6.6.1 Calculation of power consumption:
Where: Q is the power consumed for drying unit weight of fabric, kW·h/kg; E is the power consumed for drying rated weight of fabric in 1 hour, kW·h; W is the weight of standard load cloth before drying, kg: g2 is the weight of fabric after drying for 1 hour, kg. 6.6.2 Calculation of steam consumption:
Where: Q2 is the amount of steam consumed for drying unit weight of fabric, kg/kg: q is the amount of steam consumed for drying rated weight of fabric in 1 hour, kg. (2)
(3)
6.7 The nameplates and labels on the electroplated parts and the outer shell of industrial clothes dryers shall be tested for 48 hours according to the method specified in GB/T2423.17. After the test, they shall comply with the provisions of 5.7.
6.8 Painted or sprayed parts of industrial clothes dryers shall be tested for 96 hours according to the method specified in GB/T2423.3. After the test, they shall comply with the provisions of 5.8.
1 Painted or sprayed parts. The corresponding parts of the industrial clothes dryer shell can be made of the same material and the same process. Cut into 200mm×50mm samples for testing. 2 Take the same material as the shell. 40-50mm larger than the sides of the nameplate and the label. Use the same installation or pasting process for testing. 6.9 Appearance inspection method
Appearance inspection method, by visual inspection, shall comply with the provisions of 5.9. 6.10 Continuous operation test method
Industrial clothes dryers are operated continuously for 24 hours at 0.9 times and 1.1 times the rated voltage under rated conditions. Take out the fabric every 4 hours and put it into a large nylon bag for weighing. Add water to the moisture content of 80%, which shall comply with the provisions of 5.10. 7 Inspection rules
7.1 The inspection of industrial clothes dryers is divided into factory inspection and type inspection. 7.1.1 Factory inspection
Before the product leaves the factory, it must be inspected according to the items specified in Table 3. No.
Inspection items
Appearance inspection
Starting performance
Hot insulation resistance
Hot electrical strength
Grounding protection performance
7.1.2 Type inspection
JB/T6219-1999
Chapter and article of this standard
Technical requirements
Test method
Chapter and article of JB6238-1992
Safety requirements
Industrial clothes dryers shall be subject to type inspection in any of the following cases:a) Trial production and identification of new products and old products for transfer to factory production;Test method
b) After formal production, if there are major changes in structure and process, which may affect product performance;c) During normal production, regular inspection or periodic inspection after accumulating a certain amount of production;d) When the product is resumed after long-term suspension of production;e) When there is a significant difference between the factory test results and the last type test;f When the national quality supervision agency proposes the requirement of type test. 7.1.3 Type inspection shall include all items specified in this standard and JB6238. 7.1.4 Sampling plan for type inspection
The samples for type inspection shall be randomly selected from the qualified products in factory inspection. Remarks
No load may be added for factory inspection
a) For the specifications with rated dry clothes weight not exceeding 30kg, 3 units shall be randomly selected from the batch products; for the specifications with rated dry clothes weight exceeding 30kg, 1 unit shall be randomly selected.
b) For damp heat test, a set of main electrical accessories, such as driving motor, fan, temperature control system, electric heater, timer or program controller, shall be tested with simulated parts in the same installation condition as the whole machine. 7.1.5 Judgment rules
After the industrial dryer has undergone factory inspection or type inspection, if any unit fails to meet the safety requirements of JB6238, the product shall be judged as unqualified. For items belonging to this standard, if two items fail to meet the standards, the product shall be deemed unqualified; if only one item fails to meet the standards, the unqualified item may be retested twice. If one item still fails to meet the standards, the product shall be deemed unqualified; if the retest is qualified, the product shall be deemed qualified. 7.1.6 The validity period of the type test report is 24 months. 7.1.7 The ordering party and the supplier may agree on the requirements for random inspection according to the items within the scope of this standard. 8 Marking, instruction manual
8.1 Marking
8.1.1 Each industrial clothes dryer shall have a durable nameplate, and the following contents shall be indicated: a) product name, product standard number, and trademark; b) manufacturer name and detailed address:
c) product type, specification, model, and main parameters (rated voltage, rated frequency, rated input power, steam pressure); d> for items that may endanger personal safety.
Easy to use improperly
Installation mark or warning statement
8.1.2 Product packaging mark
JB/T62191999
The product packaging material should have the delivery and receipt mark, packaging storage and transportation pictorial mark, and should comply with the provisions of GB191 and GB/T6388. Instruction manual
The instruction manual of the product should comply with the provisions of GB/T9969.1. 9
Packaging, transportation and storage
9.1 Packaging
9.1.1 The industrial dryer should be packed in a firm wooden packing box, and the box should be properly padded and have moisture-proof protection measures. 9.1.2
The packing box should ensure that the industrial dryer will not be damaged due to loading and unloading, vibration, moisture, etc. under the storage conditions. 9.1.3
The documents that should be brought along with the product are as follows:
a) Product certificate;
b) Product instruction manual;
c) List of accessories;
d) Warranty certificate;
e) Other necessary technical information.
9.2 Transportation
The transportation of industrial dryers should comply with the provisions of GB191. 9.3 Storage
9.3.1 After the industrial dryer is packaged, it should be stored in a ventilated warehouse and should not be piled up. 9.3.2
After the industrial dryer is packaged, if it is stored in the open air, it must be padded with 15cm and have measures to avoid rain.
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