This standard specifies the technical requirements, test methods, inspection rules, and marking, packaging, storage and other requirements for plate and frame pressure oil filters. This standard applies to plate and frame pressure oil filters for filtering transformer oil. JB/T 5153.2-1991 Technical requirements for plate and frame pressure oil filters JB/T5153.2-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T5153.2-1991
Plate and frame pressure oil filter
Technical conditions
Published on July 22, 1991
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on July 1, 1992
Mechanical Industry Standard of the People's Republic of China
Plate and frame pressure oil filter
Technical conditions
Subject content and scope of application
JB/T5153.2-1991
This standard specifies the technical requirements, test methods, inspection rules, and marking, packaging, storage and other requirements for plate and frame pressure oil filters. This standard applies to plate and frame pressure oil filters (hereinafter referred to as "oil filters") for filtering transformer oil. Cited standards
GB1184
GB2536
GB10894
GB10896
ZBJ77001
JB/T5153.1
Shape and position tolerances Provisions for tolerances not specified Transformer oil
Determination of noise power of separation machinery - Engineering method Plate and frame filter press and chamber filter press performance test method Plate and frame filter press technical conditions
Plate and frame pressure oil filter machine Type and basic parameters Plate and frame thickness variation: the difference between the maximum and minimum dimensions of each plate and frame thickness (on the pressing surface). 4 Technical requirements
General requirements
The oil filter should comply with the provisions of this standard and JB/T5153.1, and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.1.1
The materials and purchased parts of the oil filter shall comply with the provisions of Article 3.2 of ZBJ77001. 4.2 Performance requirements
The total amount of oil seepage between the plate and frame of the oil filter at a filtration pressure of 0.25MPa shall comply with the provisions of Table 1. Table 1
25, 50
100, 125
Oil volume L/min
The oil system is not allowed to seep oil (except between the plate and frame) at a filtration pressure of 0.5MPa. The working noise (sound power level) of the oil filter shall not exceed 95dB (A). After the transformer oil with a breakdown voltage of 30~33kV (plate pole) is filtered several times by the oil filter, its breakdown voltage shall not be less than 40kV (plate pole). Approved by the Ministry of Machinery and Electronics Industry on July 22, 1991 and implemented on July 1, 1992
JB/T5153.2-1991
4.2.5 The average trouble-free working time of the oil filter shall not be less than 5000h. 4.3 Requirements for main parts
4.3.1 The flatness tolerance of the clamping surface of the clamping plate and thrust plate shall not be less than Grade 9 specified in GB1184. 4.3.2
The thickness variation of the plate frame shall comply with the provisions of Table 2. Table 2
External dimensions of the plate frame
224, 250
280, 315
4.4 Appearance requirements
Thickness variation
The non-processed external surfaces of the oil filter shall be painted except for chrome-plated parts, blue-plated parts, and non-ferrous metal and non-metal surfaces. The quality of the paint shall comply with the provisions of ZBJ77001.
Test method
5.1 Test conditions
a. The kinematic viscosity of the test oil is 27~33cSt;
b. The filter medium is 270g/m2 filter paper;
c. The oil absorption height is not higher than 0.8m;
d. The test oil is transformer oil No. 25 or No. 45 in accordance with GB2536, and the water content in the oil should not exceed 0.3%; e. Two filter papers are clamped between the filter plate, filter frame, thrust plate and clamping plate. 5.2 Test items and test methods
5.2.1 After the filter paper is clamped by the oil filter machine, the clamping force or handle force [calculation formula see Appendix A (reference) 1] is applied until the unit pressure of the clamping surface reaches 1.75MPa, and then the load test is started, and the following items are tested at the same time. a. Total oil seepage between plates and frames
When the oil pressure is 0.25MPa, stop the machine after running for 5 minutes, remove the oil seeping between the filter plates and frames, and then run for another 3 minutes, take the total oil seepage, and calculate the oil seepage per minute. b. Oil system sealing and filtration pressure
When the oil pressure of the oil system is 0.5MPa (filtration pressure value), run for 5 minutes, and no oil is allowed to seep from the oil connection parts and seals. c. Working noise
After the oil filter machine runs stably, it is tested under the oil pressure of 0.25MPa according to the provisions of GB10894. d. Breakdown voltage
The breakdown voltage of the test oil is 30~33kV. After the oil filter machine is filtered several times, the oil is sampled and the oil tester is used to break down 5 times. The arithmetic average is calculated and this average is used as the breakdown voltage index. e. The average trouble-free working time of the oil filter
Should be assessed according to the provisions of GB10896.
After the oil filter runs stably, use a stopwatch and flowmeter to detect the flow rate of the oil outlet at an oil pressure of 0.25MPa. 2
5.2.2 Flatness of the clamping plate and thrust plate
JB/T 5153.21991
Check with a thickness plug gauge on a flat plate with an accuracy of not less than level 2 (the insertion depth is not more than 1/3 of the width of the clamping surface). 5.2.3 Thickness variation of the plate frame
Take 8 points evenly distributed on the periphery of the clamping surface and 1 point on the inner clamping surface of each liquid hole as the measuring point (the point should be in the center of the width of the clamping surface) for testing. The measuring tool uses a dry ruler with a graduation value not greater than 0.01mm. Inspection rules
6.1 Each oil filter must be inspected and qualified by the quality inspection department of the manufacturer and accompanied by a product certificate before it can leave the factory. 6.2 Factory inspection
Factory inspection shall be carried out in accordance with the provisions of 4.1.1, 4.2.2 and 4.4. 6.3 Type test
Type test shall be carried out in one of the following situations: a. When new products or old products are transferred to the factory for trial production and identification; b. After formal production, if there are major changes in structure, materials and processes that may affect product performance; c. Normal batch products are inspected once a year; d. When the national quality supervision agency proposes a requirement for type test. 6.3.2 In addition to the inspection in accordance with the provisions of 6.2, the type test shall also be carried out in accordance with the provisions of 4.1.1, 4.1.2, 4.2.1, 4.2.3, 4.2.4 and 4.3.
7 Marking, packaging and storage
7.1 The size and technical requirements of the oil filter nameplate and its fixing shall comply with the provisions of ZBJ77001. The following information should be indicated on the nameplate: a. Product model, name;
b. Filtration area, m2;
c. Flow rate, L/min;
d. Filtration pressure, MPa; www.bzxz.net
e. Motor power, kW;
f. Whole machine weight, kg;
g. Factory number;
h. Manufacturing date;
i. Manufacturer name.
7.2 Packaging
7.2.1 Before packaging the oil filter, drain the oil in the machine and clean it up. 7.2.2 The oil filter should be packaged as a whole machine, and other requirements shall comply with the relevant provisions of ZBJ77001. 7.3 Storage
The oil filter should be stored in a sheltered place with a relative humidity not exceeding 80%, a temperature not exceeding 40℃, and no corrosive media. 8 Quality Assurance Period
If the user complies with the product use and storage rules, the manufacturer shall be responsible for repairing and replacing parts (except wearing parts) free of charge if the product is damaged or cannot work normally due to manufacturing quality problems within one year from the date of shipment from the manufacturer. 3
JB/T5153.21991
Appendix A
Handle force calculation formula
(reference)
When the oil filter is pressed (ignoring the friction torque of the top of the clamping screw), the force on the handle is calculated according to the following formula: F=doo
Q=10°sp
tan[arctanG
Where: 0
Clamping force (force of clamping plate), N;
Clamping surface area, m2;
.........
)+arctan(
Unit pressure of clamping surface (on clamping plate), MPa; Handle force, N;
Thread median diameter, mm;
Handle arm length, mm;
Thread pitch, mm;
Friction coefficient of screw rod and nut, take 0.3;
Thread profile half angle, (°).
Additional remarks:
This standard is proposed and managed by the National Technical Committee for Separation Machinery Standardization. This standard is drafted by Jilin No. 1 Machinery Factory. The main drafters of this standard are Chen Zhanghuan and Wang Guimin. cosβ
From the date of implementation of this standard, the original JB/TQ308-82 "BAY type plate and frame pressure oil filter" will be invalid. (A1)
People's Republic of China
Mechanical Industry Standard
Plate and Frame Pressure Oil Filter
Technical Article
JB/T 5153.21991
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Sheet 1/2 Number of words 8,000
Format 880×1230
First edition in December 1991
First printing in December 1991
Print run 1-500
Price 2.00 yuan
Mechanical Industry Standard Service Network: http://www.JB.ac.cn1661_
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