This standard specifies the pressure and volume range of isolated accumulators in hydraulic transmission systems, the characteristic quantities required for designing and testing isolated accumulators, and the identification codes of such accumulators. GB/T 2352-1997 Pressure and volume range, characteristic quantities and identification of isolated accumulators in hydraulic transmission systems GB/T2352-1997 Standard download decompression password: www.bzxz.net

ICS. 23. 100. 01
National Standard of the People's Republic of China
GB/T23521997
eqv ISO 5596 : 1982
Hydraulic fluid power--Gas-loaded accumulatorswith separators-Range of pressures and volumes.characteristic quantities and identification 1997-08-27 Issued
National Technical Supervision Bureau
1998-06-01 Implementation
W.GB/T2352—1997
This standard is compiled based on the national standard 1S05596:1982 "Hydraulic transmission-Separated accumulator-Pressure and volume specifications, characteristics and identification codes", and is equivalent to the standard in terms of technical content. This standard specifies the pressure and volume range, characteristic quantities and identification codes of liquid-repellent isolated accumulators, providing a unified technical basis for the design, production and inspection of such accumulators. This standard will take effect from the date of entry into force. At the same time, it will replace GB2352-80. This standard was proposed by China State Shipbuilding Corporation. This standard is issued by the Automation Research Institute of the Ministry of Machinery Industry of the People's Republic of China. The drafting units of this standard: the Seventh Research Institute of China State Shipbuilding Corporation, the Seventh Research Institute of China State Shipbuilding Corporation, the Comprehensive Technology and Economic Research Institute of China State Shipbuilding Corporation, and Fenghua Dongfang Xinnengji participated in the drafting. The main drafters of this standard are Bi Zhiyuan, Cai Wuzhong, and Zhang Chunlei. W. GB/T23521997
ISO Foreword
TSO) (International Organization for Standardization) is a global federation of national standardization associations (group members of ISO). The formulation of international standards is carried out in ISO technical committees. Each group member has the right to participate in the committee if it is interested in the subject of a technical committee. International organizations, whether governmental or non-governmental, that have ties to ISO also participate in this work. The international standard draft adopted by the technical committee is submitted to the members for approval before being approved by the ISO Council. International Standard ISO5596 was drafted by ISO/TC131 Hydraulic and Pneumatic Systems and Components Technical Committee, and incorporated the draft international standard ISO/ITS5595. These two documents were sent to the group members in October 1979 and were approved by the group members of the following countries: Australia
Federal Germany
Belgium
Czechoslovakia
Spain
China (only agreed to 15555)
Romania
The group members of the following countries did not agree to this standard due to certain technical reasons. Republic of South Africa
Austria
Hungary
W1 Scope
National Standard of the People's Republic of China
Hydraulle fluid power--Gas-loaded accumulatorswith separatrs-Range of pressures and volumes:characleristic quantitics and identificalionGE/T 2352—1997
eq* 150 5596:1982
Generation G3 2352 --80
This standard specifies the range of pressures and volumes of separatrs accumulators (except those specified in Chapter 3, hereinafter referred to as accumulators) in hydraulic transmission systems, the characteristics required for testing separatrs and the identification codes for such accumulators. 2 Referenced Standards
The provisions contained in the following standards, through reference in this standard, constitute the signature of this standard. At the time of this standard, not all versions shown are valid. All standards are subject to revision. Parties wishing to use this standard should discuss the possibility of using the latest versions of the following standards. GB321-80 Priority numbers and priority number systems
GB7631.2-87 Classification of lubricants and related products (Class L) Part 2: Group H (Pressure Systems) 3 Definitions
This standard adopts the following definitions.
3.1 Gas-loaded accumulator A pressure-based accumulator in which the working fluid is pressurized by the compressibility of an inactive gas (such as nitrogen) stored inside the accumulator, and there is a separation device between the gas and the working fluid. The separation device can be gas, diaphragm or piston. 3.2 Standard gas-loaded accumulator Standard gas-loaded accumulator A gas-loaded accumulator without a gas storage device.
3.3 Isolation (gas pressure) accumulators Gas loatled accumtlator is an isolated accumulator with additional gas storage. The additional gas is stored in one or more supplementary gas pipes connected to the gas storage end of the accumulator:
3.4 ​​Fluid communication
A fluid that has no significant effect on the performance and life of the components of the isolation accumulator (especially those made of elastic materials). 4 Functions
4.1 Storage capacity
The accumulator uses the compressibility of gas to store and release energy. When the circuit is at low energy consumption, the accumulator stores energy and provides flow instead of hydraulic pressure when short circuit flow is required or when the working fluid is returned to ensure emergency operation. 4.2 Buffering, reducing the pressure rise
The accumulator absorbs the working wave to slow down the pressure rise, and releases the working wave to compensate for the pressure drop, thereby reducing the force oscillation value of the circuit.
National Technical Supervision Bureau 1997-08-27 Approved 1998-06-01 Implementation
W4.3 Volume compensation
GB/T 2352—1997
The accumulator can absorb the working wave of a certain part of the circuit and the temperature change and then cause the volume change ratio. 5 Characteristic quantity
The following parameters are used for the definition of the accumulator, and the leakage test is not designed. 5.1
The pressure parameters of the energy generator are:
The initial temperature is 5°C, and the gas pressure in the energy generator is the highest inflation pressure that the energy generator can reach under normal pressure-boosting conditions. 1) The maximum working pressure of the positive wave circuit (the maximum working pressure of the positive wave circuit); 2) The set pressure of the overflow valve of the pressure relief circuit (this is the pressure value caused by the filling difference and flow rate change, which should be higher than or equal to the maximum allowable pressure of the energy generator (
) (or - the liquid bed test pressure). The output is 1.5 of the generally high allowable pressure P. The test force spectrum is the test force required to be achieved when testing the accumulator shell under certain conditions by a certified inspection agency.
The difference between the gas pressure in the accumulator and the given working condensate pressure at a given flow rate and working pressure. The pressure loss of the pipeline, general components, etc. connected to the accumulator, the output drop of the transmission auxiliary accumulator is lower than the pressure drop of the standard accumulator.
5.2 Understanding
Accumulator capacity bZxz.net
a) - Water storage pad of the accumulator core
Retention potential The volume of water that can be accommodated. The initial capacity is the non-force, and the volume occupied by the shell is V-V- respectively. The capacity of the device plus the volume of the air storage (if any) is calculated. The working volume is the volume of the device. 5.3 Streamline parameters are: Transient flow rate is the volume flow rate of the flat channel. The pressure drops from P to the pressure of the flat channel. c) n.——Expanded volume flow
The designed maximum average volume flow of the accumulator 1 Under low pressure conditions, the flow of fluid in the accumulator can be expressed in absolute terms: 2 Absolute temperature is used to determine the temperature of the accumulator. W.5.4 Temperature
The recognized temperature parameters are:
a) aa—--Minimum operating temperature
GB/T 2352—1997
1., the lower of the lowest normal operating temperature of the working fluid and the lowest ambient temperature. b) ia,rax——the higher the working temperature of the working fluid and the highest temperature of the environment.ctio maximum storage temperature +
d)t.mn—maximum storage temperature.
5.57 working rate
.—highest working temperature
In working state,The maximum rate at which the accumulator can respond to changes in parameters in the working fluid. 6 Pressure and volume range
6.1 Pressure range
The rated pressure of the accumulator shall conform to the following numerical series: 6.3, 10, 16, 20, 25, 31.5, 40, 50. 63 MPa Note: In special cases where a higher working pressure is required, the rated pressure may be selected according to the R1 numerical series specified in GB 21. 6.2 Volume range
The rated volume of the accumulator shall conform to the following numerical series: 0.25, 0.1. 0.5, 0.63.1.1. 6, 2.5.4, 6-3, 10, 16, 20, 25, 32: 10. 50, 63.100. 160, 200 1. Note: If a larger capacity is required, the R10 number specified in B321 is selected as the rated capacity. 7 Identification
7.1 Identification code
Arrange the codes and values ​​defined in the following clauses in sequence and connect them with short characters. Add this mark to form the identification code of the weak-disconnection accumulator. 7.1.1 Category code S—Standard release accumulator T—Transmission isolation accumulator 7.1.2 Isolation device code A—Gas type C—Biased diaphragm type 7.1.3 Maximum allowable pressure code The maximum allowable pressure code shall be three digits, and its value shall be divided by 10 to indicate the maximum rated pressure and shall comply with the long force value series specified in Article 6.1: 063, 100+16GG, 200+250, 315;4(00.50), G30 MPa7.1.4 Initial volume code
The initial volume code shall be in four letters. Its value indicates the initial volume and conforms to the volume value series specified in G.2: 000.2, 050.4, 000.3, 005.6, 001.0, 001-5, 002.5, 004.0, 006.3, 010.0, 016.0, 020.0.025.0,032.0,04C.0,050.0,c63.0,10G.0,160.0,200.0 t. Note: 0(10.2) and 90.6 replace 000.25 and 00.53 respectively.7.1.5 Compatible fluid code
WGB/T 2352-1997
The classification of hydraulic fluids conforms to the provisions of GB 7631.2. H—Compact
A—HFA type inflammable hydraulic fluids
—HFB type non-flammable hydraulic fluids
C—IIFC type non-flammable concentrated fluids
D—IFD type quasi-inflammable hydraulic fluids
7.2 Labeling examples
7.2.1 Standard isolating test fluids
The maximum permissible pressure is 10MPa. The initial pressure drop is 6.31. The labeling code for standard gasoline evaporators that specify the use of mineral oil is:
GB/T 2352—1957S-A-100-006.3H7.2.2 Transmission diaphragm isolator
The maximum allowable pressure is 1CMPa. The initial volume V is 2iL. The identification code of the transmission diaphragm isolator for HFC-type flame retardant liquid is:
GB/T 2352—2997T-R 100-020.0-CW
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