JB/T 11210

📋 Scope / 适用范围 ai_extracted

This standard specifies the terms and definitions, classification and model designation, requirements, test methods, inspection rules, as well as marking, packaging, transportation, and storage for gas-liquid separators (hereinafter referred to as "separators") used in refrigeration and air-conditioning systems. This standard applies to gas-liquid separators used in refrigeration and air-conditioning systems that employ liquefied gases as refrigerants, with a design pressure not exceeding 2.51 MPa, a design temperature not exceeding 60°C, a volume not exceeding 25 L, utilizing refrigerants with safety classification A1 (pure component refrigerants or refrigerant mixtures) or A1/A1 (refrigerant mixtures), and operating in vapor-compression refrigeration cycles or similar cycles.

📝 Foreword / 前言 ai_extracted

This standard was drafted in accordance with the rules given in GB/T 1.1—2009. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Technical Committee on Refrigeration and Air-Conditioning Equipment Standardization (SAC/TC238). The main drafting units of this standard are: Zhejiang Sanhua Refrigeration Group Co., Ltd., Hefei General Machinery Research Institute, Taizhou Hongyuan Air Conditioning Equipment Co., Ltd. The participating drafting units of this standard are: Guangdong Hengji Metal Products Industrial Co., Ltd., Zhejiang Dunan Artificial Environment Equipment Co., Ltd., Emerson Environmental Optimization Technology (Suzhou) R&D Co., Ltd., Zhuji Hengsen Refrigeration and Heating Equipment Co., Ltd., Zhejiang Wanjin Machinery Co., Ltd. The main drafters of this standard are: Chen Feng, Zhang Zhijun, Shi Zhuqing, Zhao Jiantao, Qi Youxun, Jin Hailong, Gan Ruhai, He Yongshui, Jin Juntao. This standard is published for the first time. National Standard Long-Lasting www.gb99.cn Free Download JB/T 11210—2011

📖 Terms & Definitions / 术语和定义 ai_extracted

气液分离器 accumulator / Accumulator

装设在制冷系统压缩机前面的容器，该容器进口接管连接蒸发器方向过来的接管、出口接管连接压 缩机的进口接管，利用制冷剂气、液状态密度差异，通过内部的结构设置，使进入压缩机的制冷剂均为 气态，防止对压缩机造成液击。

A vessel installed upstream of the compressor in a refrigeration system. The inlet connection of this vessel is linked to the pipe from the evaporator, while the outlet connection is connected to the compressor's inlet pipe. Utilizing the density difference between the gaseous and liquid states of the refrigerant, and through its internal structural configuration, it ensures that only gaseous refrigerant enters the compressor, thereby preventing liquid slugging damage to the compressor.

设计压力 designed pressure / designed pressure

设定的分离器顶部的最高压力，与相应的设计温度一起作为设计载荷的条件，其值应不低于工作 压力： ——分离器由两个以上工作室构成且作用于各室的压力不同时，应按各室压力分别确定设计压力； ——为使其工作压力不超过分离器的设计压力，制冷剂液体充装量应不超过分离器容积的80%； ——分离器位于系统的低压侧，设计压力一般按38℃时制冷剂饱和蒸气压力确定，宜按NB/T 47012 —2010 中附录C 查取；当规定的环境温度超过38℃时，则按制冷剂可能达到的最高压力确定。

The maximum pressure set at the top of the separator, together with the corresponding design temperature, shall serve as the design load condition, and its value shall not be lower than the working pressure: — When the separator consists of two or more working chambers and the pressures acting on each chamber differ, the design pressure shall be determined separately for each chamber based on its respective pressure; — To ensure that the working pressure does not exceed the design pressure of the separator, the refrigerant liquid charge shall not exceed 80% of the separator's volume; — When the separator is located on the low-pressure side of the system, the design pressure shall generally be determined based on the saturated vapor pressure of the refrigerant at 38°C, and it is advisable to refer to Appendix C of NB/T 47012—2010 for retrieval; if the specified ambient temperature exceeds 38°C, the design pressure shall be determined based on the maximum possible pressure of the refrigerant.

设计温度 designed temperature / designed temperature

在正常操作条件下，设定的元件金属温度（沿元件金属截面的温度平均值）。设计温度与设计压力 一起作为设计载荷条件。 分离器各工作室的温度不同时，应分别确定设计温度。分离器位于系统的低压侧，其设计温度按如 下方法选取： 国标久久 www.gb99.cn 免费下载 JB/T 11210—2011 2 ——当使用温度低于0℃，若使用温度下一次总体薄膜应力小于或等于材料常温屈服强度的1/6， 且不大于50 MPa，则设计温度取使用温度与50℃的代数和。 ——当按上述办法得到的设计温度不低于0℃且不高于38℃时，其设计温度最终按38℃选取。

Under normal operating conditions, the specified component metal temperature (the average temperature across the cross-section of the component metal). The design temperature, together with the design pressure, serves as the design load condition. When the temperatures in different chambers of the separator vary, the design temperature shall be determined separately for each chamber. The separator is located on the low-pressure side of the system, and its design temperature shall be selected as follows: GB99 www.gb99.cn Free Download JB/T 11210—2011 2 — When the operating temperature is below 0°C, if the primary overall membrane stress at the operating temperature is less than or equal to 1/6 of the material's yield strength at room temperature and does not exceed 50 MPa, the design temperature shall be taken as the algebraic sum of the operating temperature and 50°C. — When the design temperature obtained by the above method is not lower than 0°C and not higher than 38°C, the design temperature shall ultimately be selected as 38°C.

容积 cubage / cubage

分离器的几何容积，即由设计图样标注的尺寸计算（不考虑制造公差）并且圆整。一般应当扣除永 久连接在分离器内部的内件的体积。

The geometric volume of the separator is calculated based on the dimensions specified in the design drawings (without considering manufacturing tolerances) and rounded off. Generally, the volume of internals permanently connected inside the separator shall be deducted.

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