JB/T 10212
制冷空调用直动式电子膨胀阀
制冷空调用直动式电子膨胀阀
📋 Scope / 适用范围 ai_extracted
This standard specifies the terms and definitions, model and basic parameters, requirements, test methods, inspection rules, as well as marking, packaging, transportation, and storage for direct-acting electronic expansion valves (hereinafter referred to as "expansion valves") used in refrigeration and air conditioning. This standard applies to direct-acting electronic expansion valves for air conditioning, with a rated voltage not exceeding DC 36 V, using R22, R407C, or R410A as refrigerants, and having a valve port diameter not greater than 8 mm.
本标准规定了制冷空调用直动式电子膨胀阀（以下简称“膨胀阀”）的术语和定义、型号与基本参 数、要求、试验方法、检验规则及标志、包装、运输和贮存。 本标准适用于额定电压不大于DC 36 V，以R22、R407C、R410A 为制冷剂，其阀门口径不大于8 mm 的空调用直动式电子膨胀阀。
📝 Foreword / 前言 ai_extracted
This standard is drafted in accordance with the rules given in GB/T 1.1—2009. This standard replaces JB/T 10212—2000 "Direct-acting Electronic Expansion Valves for Refrigeration and Air-conditioning". Compared with JB/T 10212—2000, the main technical changes are as follows: —— In Chapter 2 "Normative References", all referenced standards have been updated to their latest versions, and the following standards have been added: "GB/T 2423.22—2002 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test N: Change of Temperature", "GB/T 2828.1—2003 Sampling Procedures for Inspection by Attributes - Part 1: Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-Lot Inspection", and "GB/T 10125—1997 Corrosion Tests in Artificial Atmospheres - Salt Spray Tests". —— In Chapter 3, the definitions of "nominal capacity" and "pressure drop" have been deleted. —— In Chapter 4 "Type", "4.1 Type" and "4.2 Nominal Conditions of Expansion Valve" have been deleted, and "4.1 Model", "4.2 Connection Pipe Size Parameters", and "4.3 Operating Conditions" have been added. —— In Chapter 5 "Requirements": 1) Two types of refrigerants, R407C and R410A, and their corresponding requirements have been added; 2) Requirements for applicable fluid temperature, voltage variation, leakage rate, maximum operating pressure differential, airtightness, and service life have been adjusted; 3) No requirement is specified for nominal capacity, which is replaced by the flow characteristic item; 4) Requirements for "burst strength", "fatigue resistance", "pulse voltage resistance", "opening pulse", "noise", "temperature change resistance", "corrosion resistance", and "closing stopper durability" have been added. This standard is proposed by China Machinery Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Refrigeration and Air-conditioning Equipment (SAC/TC238). The responsible drafting units for this standard are: Zhejiang Sanhua Co., Ltd., Hefei General Machinery Research Institute, Emerson Climate Technologies (Suzhou) R&D Co., Ltd., and Danfoss (Shanghai) Automatic Controls Co., Ltd. The participating drafting units for this standard are: Zhuji Hengsen Refrigeration and Heating Equipment Co., Ltd., and Zhejiang Dunan Artificial Environment Equipment Co., Ltd. The drafters of this standard are: Chen Yuzhong, Yuan Ze, Zhong Yu, Hu Feixue, He Jia, He Yongshui, and Luo Gaocheng. The previous versions of the standard replaced by this standard are as follows: —— JB/T 10212—2000. National Standard JiuJiu www.gb99.cn Free Download JB/T 10212—2011
本标准按GB/T 1.1—2009给出的规则起草。 本标准代替JB/T 10212—2000《制冷空调用直动式电子膨胀阀》，与JB/T 10212—2000相比主要技术 变化如下： ——第2章“规范性引用文件”中的引用标准均改为最新版本，并增加“GB/T 2423.22—2002电工 电子产品环境试验 第2部分：试验方法 试验N：温度变化”，“GB/T 2828.1—2003计数抽样 检验程序 第1部分：按接收质量限（AQL）检索的逐批检验抽样计划”，“GB/T 10125—1997 人造气氛腐蚀试验 盐雾试验”。 ——第3章删掉“名义容量”和“压力降”的定义。 ——第4章“型式”中删除“4.1型式”和“4.2膨胀阀名义工况”，增加“4.1型号”、“4.2连接管尺寸 参数”和“4.3使用条件”。 ——第5章“要求”中： 1）增加了R407C和R410A二类制冷剂及其相应的要求； 2）对适用流体温度、电压变化、泄漏量、最大动作压差、气密性、寿命的要求进行了调整； 3）对名义容量不作要求，由流量特性项目替代； 4）增加了“破坏强度”、“耐疲劳性”、“耐脉冲电压”、“开阀脉冲”、“噪声”、“耐温度变化”、 “耐腐蚀”和“关闭止动器耐久性”项目要求。 本标准由中国机械工业联合会提出。 本标准由全国冷冻空调设备标准化技术委员会（SAC/TC238）归口。 本标准负责起草单位：浙江三花股份有限公司、合肥通用机械研究院、艾默生环境优化技术（苏州） 研发有限公司、丹佛斯（上海）自动控制有限公司。 本标准参加起草单位：诸暨恒森冷热器材有限公司、浙江盾安人工环境设备股份有限公司。 本标准起草人：陈雨忠、袁泽、钟瑜、胡飞雪、贺嘉、何永水、罗高成。 本标准所替代标准的历次版本发布情况为： —— JB/T 10212—2000。 国标久久 www.gb99.cn 免费下载 JB/T 10212—2011
📚 References & Relations / 引用与关联
📖 Terms & Definitions / 术语和定义 ai_extracted
- 电子膨胀阀 electronic expansion valve / electronic expansion valve
- 通过控制步进电动机的运转，从而改变阀口的流通面积，实现制冷系统制冷剂流量调节的执行器件。
- An actuator that adjusts the refrigerant flow rate in a refrigeration system by controlling the operation of a stepper motor to change the flow area of the valve port.
- 直动式电子膨胀阀 direct-driven electronic expansion valve / direct-driven electronic expansion valve
- 利用步进电动机旋转，由电动机转子直接驱动阀针，改变阀口流通面积的膨胀阀。
- An expansion valve that utilizes the rotation of a stepping motor, with the motor rotor directly driving the valve needle to change the flow area of the valve port.
- 泄漏量 valve leakage / Valve leakage
- 在规定的试验条件下，膨胀阀关闭时，试验介质通过阀口密封副的流量。
- Under specified test conditions, the flow rate of the test medium passing through the valve port sealing pair when the expansion valve is closed.
- 流量特性 air flow rate / Air flow rate
- 流过膨胀阀的流量与输入步进电动机线圈的脉冲数之关系。
- The relationship between the flow rate through the expansion valve and the number of pulses input to the stepper motor coil.
- 全开脉冲数 full stroke pulses / full stroke pulses
- 膨胀阀从全闭到全开，所需输入步进电动机线圈的脉冲数，称全开脉冲数。
- The number of pulses input to the stepper motor coil required for the expansion valve to go from fully closed to fully open is referred to as the full-open pulse count.
Content extracted by AI. Not officially verified.