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GB/T 21360-2018

Chinese Standard: 'GB/T 21360-2018'
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Detail Information of GB/T 21360-2018; GB/T21360-2018
Description (Translated English): Refrigerant compressor for automobile air conditioning
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J73
Classification of International Standard: 27.200
Word Count Estimation: 15,162
Date of Issue: 2018-05-14
Date of Implementation: 2018-12-01
Older Standard (superseded by this standard): GB/T 21360-2008
Drafting Organization: Hefei General Machinery Research Institute, Nanjing Aotejia New Energy Technology Co., Ltd., Hefei General Environmental Control Technology Co., Ltd.
Administrative Organization: National Refrigeration and Air Conditioning Equipment Standardization Technical Committee (SAC/TC 238)
Regulation (derived from): National Standards Announcement No. 6 of 2018
Proposing organization: China Machinery Industry Federation
Issuing agency(ies): State Administration of Markets and China National Standardization Administration

GB/T 21360-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.200
J 73
Replacing GB/T 21360-2008
Refrigerant compressor for
automobile air conditioning
汽车空调用制冷剂压缩机
ISSUED ON. MAY 14, 2018
IMPLEMENTED ON. DECEMBER 1, 2018
Issued by. State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 6 
4 Types and basic parameters ... 6 
5 Technical requirements ... 7 
6 Test methods ... 10 
7 Inspection rules ... 17 
8 Marking, packaging, transport, and storage ... 19 
Appendix A (Normative) Measuring method of internal cleanliness of
compressor ... 21 
Appendix B (Normative) Determination of internal moisture content of
compressor ... 24 
Refrigerant compressor for
automobile air conditioning
1 Scope
This Standard specifies the terms and definitions, types and basic parameters,
technical requirements, test methods, inspection rules, marking, packaging,
transport, and storage of refrigerant compressor for automobile air conditioning
(hereafter known as “compressor” for short).
This Standard is applicable to various types of refrigerant compressor for
automotive air conditioning which use R134a and R407C as refrigerants. Other
vehicles or the compressor which uses other environmental-friendly refrigerants
may implement this Standard by reference.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the versions with the dates indicated are
applicable to this document. For the undated references, the latest version
(including all the amendments) are applicable to this document.
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB 1922 Petroleum solvents for paints and cleaning
GB/T 2423.17 Environmental testing for electric and electronic products -
Part 2. Test method - Test Ka. Salt mist
GB 4706.17 Household and similar electrical appliances - Safety - Particular
requirements for motor-compressors
GB/T 5773 The method of performance test for positive displacement
refrigerant compressors
GB/T 6283 Chemical products - Determination of water - Karl·fischer method
(general method)
GB/T 13306 Plate
GB/T 22068 Automobile air conditioning electrically driven compressor
assembly
lubricating oil used, refrigerating capacity, input power, noise, etc.
5 Technical requirements
5.1 General requirements
The compressor shall be manufactured in accordance with the drawings and
technical documents approved by the prescribed procedures (or the agreement
between the user and the manufacturer).
For (semi) hermetically compressor, the heating capacity, exciting force, voltage
fluctuation resistance, electromagnetic compatibility, alternating heat-humidity
of the compressor body, insulation resistance of the stator winding of motor to
the housing, voltage resistance of the stator winding of motor to the housing,
protection grade of the housing, performance of drive controller, etc. shall
comply with the provisions of GB/T 22068.
5.2 Appearance
The paint film of painted parts of the compressor shall be uniform and firm, and
shall be free of defects such as bubbles, peeling, grinning, and bruises. The
casting surface shall be flat and smooth. The wire sheath of (semi) hermetically
compressor shall not be broken, and the connector shall not be deformed or
damaged.
5.3 Compression strength
The compressor shall be free from leakage and abnormal deformation.
Note. In this test, the tolerance of rubber seals may not be an assessment requirement.
5.4 Tightness
The leakage of the compressor shall be no more than 14 g/a.
5.5 Internal cleanliness
The internal cleanliness of the compressor shall meet the following
requirements.
a) The cleanliness of open-type compressor shall meet the requirements of
Table 1;
b) The cleanliness of (semi) hermetically compressor shall comply with the
provisions of GB/T 22068.
For (semi) hermetically compressor, the thermal cycle test requirements shall
comply with the provisions of GB/T 22068.
5.14 Durability
For open-type compressors, after the test of durability, refrigerating capacity,
input power, and noise, the measured refrigerating capacity of the compressor
shall be reduced by no more than 10%; the measured input power shall be
increased by no more than 10%; the measured noise value of swash plate-type
compressor shall be increased by no more than 5 dB(A); and the measured
noise value of other types of compressor shall be increased by no more than 3
dB(A).
For (semi) hermetically compressor, the durability requirements shall comply
with the provisions of GB/T 22068.
5.15 Vibration resistance
For open-type compressors, after the test of vibration resistance, refrigerating
capacity, input power, and noise, the measured refrigerating capacity of the
compressor shall be reduced by no more than 10%; the measured input power
shall be increased by no more than 10%; the measured noise value shall be
increased by no more than 2 dB(A).
For (semi) hermetically compressor, the vibration resistance requirements shall
comply with the provisions of GB/T 22068.
6 Test methods
6.1 General requirements
The requirements for the test method of refrigerating capacity of the compressor,
for the instruments and apparatus used for the test, and for pressure-
temperature measurement point shall comply with the provisions of GB/T 5773.
The requirements for noise test instruments shall conform to the provisions of
JB/T 4330.
The refrigerant leak detector shall have a sensitivity grade of not less than 14
g/a.
6.2 Test conditions
6.2.1 Nominal conditions
The nominal conditions of open-type compressor shall be in accordance with
oil in the compressor; by the suction-exhaust port, FILL the compressor
with the refrigerant to 0.5 MPa ± 0.05 MPa; then, USE dry nitrogen to
pressurize it to 1 MPa, and USE an electronic refrigerant leak detection
device with an accuracy of measurement of not less than 1×10-6
atm · cm3/s to measure;
b) USE helium as the leak detection medium. POUR out the refrigerant oil in
the compressor; by the suction-exhaust port, FILL the compressor with
helium (or a certain proportion of helium-nitrogen mixed gas) to test
pressure (within the range of 1.2 MPa ~ 1.8 MPa); then, PLACE the
compressor on a special device for helium leak detection with an accuracy
of measurement of not less than 1×10-8 atm · cm3/s, for equivalent
measurement of refrigerant leakage.
6.5 Internal cleanliness
The test shall be carried out according to the method of Appendix A.
6.6 Internal moisture content
The test shall be carried out according to the method of Appendix B.
6.7 Test of refrigerating capacity, input power, and refrigeration
performance coefficient
Under the nominal conditions specified in 6.2.1, the test shall be carried out in
accordance with the provisions of GB/T 5773, to determine the refrigerating
capacity, input power, and refrigeration performance coefficient of the
compressor.
6.8 Noise test
6.8.1 The refrigerating system outside the test environment shall be provided
with conditions for controlling the suction and exhaust pressure of the
compressor.
6.8.2 The compressor drive unit outside the measurement environment shall be
provided with conditions for controlling the rotational speed of compressor.
6.8.3 INSTALL according to the installation method specified by the compressor
manufacturer. When there are several installation methods, the most
unfavorable installation method shall be adopted.
6.8.4 Open-type compressor shall be tested under the conditions specified in
Table 5; and the test method shall be in accordance with the provisions of JB/T
4330. For (semi) hermetically compressor, the test shall be implemented
coil winding is measured by electric resistance method.
6.11.2 For (semi) hermetically compressor, the test shall be implemented
according to the method specified in GB/T 22068.
6.12 Static breakaway torque test
6.12.1 At normal temperature, PLACE the electromagnetic clutch on the
compressor (or equivalent clutch clamp).
6.12.2 FIX the torque measuring instrument and the anti-rotation clamp on belt
pulley and sucker, respectively; and PROVIDE the electromagnetic clutch with
a constant rated voltage by DC power supply.
6.12.3 SWITCH on the electromagnetic clutch; and according to the torque
measuring instrument requirements, slowly APPLY acting force to the torque
measuring instrument in a direction perpendicular to the compressor axis; when
the sucker and the belt pulley rotate relative to each other, READ the reading
of torque measurement instrument and RECORD.
6.12.4 REPEAT the method in 6.12.3 for 5 times and TAKE the average of the
last 3 times as the measured value of static breakaway torque of the
compressor.
6.13 Thermal cycle test
6.13.1 For open-type compressor.
a) Test conditions. After placing at a low temperature of -30 °C for 3 h, PLACE
at normal temperature for 1 h, then PLACE at a high temperature of
120 °C for 1 h, and PLACE at normal temperature for 1 h. Under the above
conditions, CYCLE the test for 5 times;
b) After the thermal cycle test is completed, tightness test shall be carried out
according to 6.4.
6.13.2 For (semi) hermetically compressor, the test shall be implemented
according to the method specified in GB/T 22068.
6.14 Durability test
6.14.1 For open-type compressor, the test shall be carried out according to the
following provisions.
a) After the compressor is connected to test system, it is evacuated and filled
with an appropriate amount of refrigerant. According to the test conditions
specified in Table 6, ADJUST suction-exhaust pressure and running time
7.2.3 If the sampling is unqualified, re-inspection shall be performed in double
quantity. If there is still one unqualified, the batch of products shall be inspected
one by one.
7.3 Type inspection
7.3.1 In any of the following cases, it shall carry out type inspection.
a) Trial-manufacture pattern evaluation for plant transfer production of new
products or old products;
b) When there are major changes in compressor design, materials, and
processes and the product performance may be affected;
c) When the production resumes after more than one year of compressor
production suspension;
d) When it is considered necessary because of unstable quality;
e) The compressor is subjected to type inspection once a year.
7.3.2 The items, technical requirements, and test methods for type inspection
shall be in accordance with the provisions of Table 8.
8 Marking, packaging, transport, and storage
8.1 Marking
8.1.1 Each compressor shall be provided with a permanent nameplate in a
prominent position. The nameplate shall comply with the provisions of GB/T
13306. The nameplate shall include at least.
a) Manufacturer name;
b) Product name and model;
c) Main technical parameters, the refrigerant used;
d) Date of manufacture and exit-factory number.
8.1.2 The product shall be marked with the number of the executive standard
in the corresponding place (such as nameplate, product manual, etc.).
8.2 Packaging
8.2.1 The compressor manufacturer shall provide the product specification for
the user. The product specification content shall include.
A.4.3 Method I. cleaning of components
The cleaning of components is carried out according to the following provisions.
a) The refrigerating machine oil filled in the compressor is collected into the
specified container;
b) DISASSEMBLE all the components of the detached part of compressor,
and USE round brush and flat brush soaked with the cleaning fluid to
repeatedly scrub the surface and hole-channel of the components in
contact with the refrigerant; ......
Related standard:   GB/T 21363-2018  GB/T 21361-2017
   
 
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