GB/T 34619-2017 in English

VALID

Test method for volumetric flow of positive displacement refrigerant compressors

Issued on:2017-09-29
Implemented on:2018-04-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $220.00
$214.00

Standard No:	GB/T 34619-2017
Document status:	VALID
Title in English:	Test method for volumetric flow of positive displacement refrigerant compressors
Title in Chinese:	容积式制冷剂压缩机容积流量试验方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2017-09-29
Implemented on:	2018-04-01
ICS Classification:	27.200-Refrigerating technology
Professional Classification:	GB-National Standard
Related Keywords:	positive displacement refrigerant compressors single-stage positive displacement refrigerant compressors positive displacement refrigerant compressors introduction gb/t flow test method test method
Related Topics:	Refrigerant Standard Refrigerant Standard volume of reagent total integral dose volume Positive displacement compressor installation volume method cassette flow peak area volume sample cell Flow Method Validation capacity mode Classification of volumetric compressors Flow Method Validation Pseudocapacitive method pi streaming method Cassette volume method Volumetric microphone mixer Flow method validation volume flow operating volume Flow Cytometry Reagents compressor refrigerator Mechanism content American Compression Tester flow sample volume volume reagent volume shrinkage GBT34619 GB/T 34619-2017 Measuring accretion flow Refrigerant compatibility testing Flow cytometry reagent detection method Positive displacement refrigeration compressors and compressor units Test cylinder volume calibration method Refrigerant compatibility testing How to control flow of filling machine Positive displacement compressor volumetric flow acceptance current volume test Container volume test Flow cytometry preparation method Compressor alignment allowable value Volumetric flask preparation method Solvent peak integration query method gb/t34619 gb 34619 gb/34619

《GB/T 34619-2017容积式制冷剂压缩机容积流量试验方法》由TC238（全国冷冻空调设备标准化技术委员会）归口，主管部门为中国机械工业联合会。

Introduction

GB/T 34619—2017 Standard Overview

This standard specifies in detail the volume flow test method for positive displacement refrigerant compressors, and is applicable to single-stage positive displacement refrigerant compressors and compressor units. The standard gives clear requirements from test conditions, instruments and equipment, data processing to test reports, providing a unified technical specification for the industry.

Test conditions and requirements

Project	Specific requirements
Test system sealing	Ensure that the system is sealed, clean and leak-free.
Test gas requirements	Use dry air or nitrogen, which has been strictly dried.
Measurement point location	The suction and exhaust measurement points are 0.3m/0.15m straight pipe sections from the outside of the stop valve or the end of the pipe mouth.

Analysis of key instruments and equipment

Temperature measuring instrument:Including glass mercury thermometer, thermocouple, etc., with an accuracy requirement of ±0.1°C.

Pressure measuring instrument:Such as spring tube pressure gauge, the absolute pressure or differential pressure reading accuracy is ±1%.

Flow measuring instrument:Using nozzle, orifice plate or venturi tube, etc., the accuracy is ±2% of the measured flow.

Professional terms and practical applications

Positive Displacement Refrigerant Compressors Units

Refers to a unit consisting of a compressor, a prime mover and other accessories, used to compress refrigerant vapor. In practical applications, it is necessary to ensure that the unit operates under rated conditions to achieve optimal efficiency.

Comparative analysis of standard frameworks

Dimensions	GB/T 34619—2017	Internationally accepted standards
Test conditions	Clearly stipulates the test environment, gas requirements, etc.	Basically consistent with relevant ISO standards.
Measurement accuracy	Temperature: ±0.1°C; Pressure: ±1%; Flow: ±2%.	International general requirements are similar, but some parameters are more stringent.
Data processing	The five-time measurement average method is used to ensure data reliability.	International standards mostly use the same method.

Implementation suggestions

Equipment selection:High-precision instruments that meet the requirements of the standards are preferred to ensure measurement accuracy.
Staff training:Systematic training is conducted for test personnel to master the standard terms and practical operation points.
Data recording:Test parameters are recorded strictly in accordance with standard requirements to ensure traceability.
Regular calibration: Regularly calibrate the instruments and equipment to ensure that the measurement accuracy meets the requirements.