This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of vacuum milk pumps. This standard applies to vacuum milk pumps for sucking and releasing raw milk in dairy production, and also applies to vacuum suction tanks for sucking and releasing similar liquids in the food industry. QB/T 1677-1992 Vacuum milk pump QB/T1677-1992 Standard download decompression password: www.bzxz.net

Light Industry Industry Standard of the People's Republic of China
Vacuum Milk Suction Tank
Subject Content and Applicable Scope
QB/T 1677--1992
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of vacuum milk suction tanks. This standard applies to vacuum milk suction tanks for sucking and placing raw milk in dairy production, and also applies to vacuum suction tanks for sucking and placing similar liquids in the food industry.
2 Reference standards
Steel pressure vessels
GB/T 191
GB 12073
JB/T2759
Picture signs for packaging, storage and transportation
Safety and sanitation of dairy equipment
General technical conditions for packaging of electromechanical products
QB/T1823
ZB J50 004
3 Product classification
3.1 Product type
Method for compiling dairy machinery models
Determination of sound pressure level of noise from metal cutting machine tools This equipment is a vertical sealed container.
3.2 Product model
According to the provisions of QB/T1823, the marking is as follows: RZ GC 08-
Main parameters (milk suction volume per time)
Type code (vacuum milk suction tank)
Characteristic code (process tank)
Classification code (storage)
Major category code (dairy machinery)
4 Technical requirements
4.1 Basic parameters, see Table 1.
4.2 Products should comply with the requirements of this standard and be manufactured according to drawings and technical documents approved by the prescribed procedures. 4.3 All purchased parts and raw materials should have inspection certificates or quality assurance certificates from the supplier, otherwise the manufacturer should inspect the purchased parts and raw materials and use them only if they are qualified.
4.4 Parts in contact with materials shall be made of stainless steel or other materials that meet food hygiene requirements. All metal parts that need to be polished shall be polished, with neat and beautiful surface textures. Obvious black spots, burns, scratches, indentations and other defects are not allowed. The surface roughness R. value shall not be greater than 1.6μm.
Approved by the Ministry of Light Industry of the People's Republic of China on January 15, 1993 288
Quasi-heating network
Quasi-road material fee
Implemented on September 1, 1993
Each milking volume/L
Milk suction vacuum/kPa
Each milking time/min
QB/T1677—1992
RZGC08-300
4.5 Surface welds in contact with materials shall be polished flat. Roughness R. The value shall not be greater than 6.3um, and the sealing performance and strength requirements shall be guaranteed. Cracks, cracks, gaps and other defects are not allowed. 4.6 For polished chrome-plated parts, the coating shall not fall off, darken, be rough and uneven, and the surface shall be bright. The design and manufacture of the product shall comply with the provisions of GB12073. 4.7
The roundness tolerance of the body is 4 mm.
The tank body weld shall be subjected to a tightness test and a pressure test. The test pressure is 0.15MPa. 4.10
When the tank body, valve body, instrument, etc. are connected to other parts, they must be tight and there must be no leakage. The noise of the whole machine shall not exceed the sound pressure level of 85dB(A). The insulation resistance of the whole machine shall not be less than 2MQ, and the grounding resistance shall not be greater than 0.2Q. 5 Test methods
5.1 Tightness test of tank weld
Clean the inspectable side of the weld, apply white powder slurry, dry it, and apply kerosene on the other side of the weld to make the surface sufficiently wetted. After 30 minutes, if there is no oil on the white powder, it is qualified. 5.2 Pressure test of tank weld and valve body
Perform according to the provisions of Article 10.9.4 of GB150, and the test pressure is 0.15MPa. 5.3 Noise
Test according to the provisions of ZBJ50004, and the results should meet the provisions of Article 4.11. 5.4 Vacuum degree of milk suction, milk suction volume and milk suction time each time Under normal operation of the equipment, when the vacuum degree reaches 53~67kPa, open the feed valve, and use a stopwatch to measure the time required to suck 300L of pre-weighed milk. The result should meet the provisions of Article 4.1. 5.5 Insulation resistance
Measured between the motor output terminal and the housing with a 500V megohmmeter, the result shall comply with the provisions of Article 4.12. 5.6 Grounding resistance
Measured between the housing of the vacuum milk sucking tank and the grounding terminal with an ohmmeter, the result shall comply with the provisions of Article 4.12. 5.7 Other items are tested in accordance with conventional methods. 6
Inspection rules
Inspection is divided into factory inspection and type inspection.
6.2 Factory inspection
6.2.1 Each product shall be inspected and qualified according to the provisions of Articles 4.2~4.10 before it can be shipped, and documents proving the quality of the product shall be attached. 6.2.2 One unit of each batch of products shall be randomly selected for no-load vacuum test, and the vacuum degree shall reach 67kPa. At the same time, 4.11 and 4.12 shall be inspected and required to comply with the provisions of this standard. If one of the inspections fails, the batch of products shall be inspected one by one. 6.3 Type inspection is required in the following cases. Finalization appraisal after the trial production of new products is completed; a.
Once every three years during normal production;
Re-manufacturing after three years of suspension of production;
: When there are major changes in product structure, process, and materials that may affect product performance; d.
Standard Search Network
QB/T 1677--1992
When the national quality supervision agency proposes the requirement for type inspection. 6.4 Type inspection should be conducted on one unit randomly selected from the products that have passed the factory inspection, and should comply with the provisions of Chapter 4. If one item fails, it is allowed to double the sampling of the batch of products. If it still fails, the inspection will be considered as failure. 7 Marking, packaging, transportation and storage
7.1 Marking
7.1.1 Product marking
A label must be fixed on the front of the vacuum pump, which includes: a.
Manufacturer name;
Product name and model,
Main technical parameters;
Manufacturer's serial number and production date. Packaging marking
7. 1. 2. 2
The packaging box should have clear and neat markings, including: Manufacturer name and address;wwW.bzxz.Net
Product model, name and quantity;
Production number and box number,
Box size (length × width × height) and gross weight, name and address of the consignee;
"Handle with care", "Lifting instructions", "Upward" and packaging year and month and other words and signs. Packaging markings should comply with the provisions of GB/T191. 7.2 Packaging
7.2.1 Product packaging shall comply with the provisions of JB/T2759. 7.2.2. Each product shall be provided with the following documents: a.
Instruction manual;
Product certificate:
Packing list.
The above documents shall be placed in a moisture-proof container.
7.3 Transportation
The packaging box of the vacuum milk pump shall not be hit during transportation. 7.4 Storage
It shall be stored in a clean and dry warehouse to avoid coexistence with chlorides. 8 Quality Assurance
If the user abides by the storage and use rules, within twelve months from the date of shipment from the manufacturer, if the product is damaged or cannot work normally due to poor manufacturing quality (except for wearing parts), the manufacturer shall repair and replace the product and parts for the user free of charge. Additional remarks:
This standard is proposed by the Technical Equipment Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Dairy Machinery Standardization Center. This standard was drafted by Shanghai Qianwei Machinery Factory. The main drafters of this standard are Wang Wufang, Shi Lianguan and Shen Peihua.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.