四通换向阀

热泵四通换向阀容量实验台的研制

A New Experimental Unit of Testing Capacity for Heat Pump Four-Way Reversing Valve

四通换向阀是热泵空调中切换制冷、供热两种方式的关键部件，其容量值是主机厂选用的重要依据。

As an important component of a heat pump , four-way reversing valve is chosen mainly according to its capacity .

详细讨论了高效烟气余热回收、超低NOX排放等关键技术和蓄热式燃烧器、四通换向阀等关键部件；

Both key technologies such as recovery of exhaust heat of flue gas and low emission of NOX and key parts such as burner equipped with honeycomb regenerative chamber and 4-way switching valve are discussed in detail .

空调用四通换向阀的工作特性和换向性能分析

The Characteristic and Performance of Reversing Valve on Residential Air Conditioning

四通换向阀内部流动特性的数值分析

The Numerical Analysis of Flow Character inside the 4 Way Valve

热泵型空调器四通换向阀容量的测定及换算

Measurement and Conversion of Four-Way Reversing Valve Capacity in Heat Pump System

四通换向阀容量特性实验台参数控制

Control of Parameters of Four-way Reversing Valve Capacity Characteristic Test - bed

四通换向阀对家用热泵空调系统性能的影响

Effects of Reversing Valve on Residential Heat Pump System Performance

空调四通换向阀封头失效分析

Stem failure analysis of 4-way reversing valves of air-condition

四通换向阀低压侧制冷剂压降及容量测试

Measurement of low-side refrigerant pressure drop and capacity of four way reversing valves

空调四通换向阀是空调温控的主要器件之一，在水压试验过程中，发现一定比例的空调四通换向阀产品漏水失效，给企业的正常生产带来干扰和重大的经济损失。

Some 4-way reversing valves are found with water leak failure after hydraulic-pressure testing .

四通换向阀自动检测系统的研制

Development of Reversing Valve Automatic Detection System

四通换向阀内泄漏分析研究

Research on leakage of reversing valve

热泵型空调与单冷空调相比，关键的零部件在于四通换向阀。

Compare to single-refrigerator air-condition , 4-way reversing valve is a key item in heat pump air-condition .

同时优化四通换向阀材料并减小阀的尺寸可以在保证性能的前提下降低成本。

Material optimization combined with valve size reduction could decrease the cost on the premise of performance guarantee .

找出空调四通换向阀产品封头-铁素体不锈钢棒材开裂失效的原因。

This is to study the reasons why water leakage failure is caused by4-way reversing valves-ferrite stainless steel bars .

试验结果表明，用制冷工质模拟实际工作条件能够准确测试四通换向阀的寿命。

The results indicate that using refrigerant to simulate the real working environment can get the accurate lifetime of four-way valve .

制冷用大容量交叉式电磁四通换向阀设计改进这是新的信息，因为你们在四叶苜蓿形的立体道路交叉点。

Design Improvement of the Refrigeration High Capacity Crossing Electromagnetic Four-way Reversing Valve This is new information for you at Cloverleaf .

采用控制容积法建立四通换向阀动态模型，并将其接入空调器动态仿真模型，从而建立起研究空调器换向过程动态特性的仿真平台。

Based on the dynamic reversing process , a mathematical model of four way reversing valve was established and connected with the system model .

分析比较了四通换向阀的吸气压降损失、排气压降损失、吸气温升损失和泄漏损失；

The suction pressure drop loss , discharge pressure drop loss , suction temperature increase loss , and mass flow leak loss were analyzed quantitatively .

四通换向阀在电磁作用下，改变其冷媒的流向，以达到夏季制冷，冬季制暖之目的。

Under the electromagnetic effect , 4-way reversing valve can change the flow direction of refrigerant , which makes air-condition cooling in summer and heating in winter .

在热泵系统四通换向阀后的排气管上加旁通毛细管和在气液分离器中加过冷管。

A by-pass capillary tube was added on the discharge pipe behind the four-way valve and a tube was added in an accumulator in a heat pump system to solve the problem .

同时，也对四通换向阀进行了单侧压力损失测量，对四通换向阀说明书上的压力损失参数的准确性提出了质疑。

In addition , the measurement on pressure loss cross one side of four-way diverter valve has been carried out and some questions on pressure loss of four-way diverter valve are posed .

设计建造了一套全自动四通换向阀寿命测试系统，研制了试验环境空气处理系统，编制了工况参数控制和电气系统设计及软件程序，并进行了四通换向阀的寿命测试试验。

All the work done includes providing a system solution of test environment , designing control and electric units , developing related software , and carrying out the test for the lifetime of four-way valve .

在四通换向阀总损失中，泄漏损失占的比重小于15%，压降损失占25%左右，传热损失占60%左右。

Among the entire reversing valve loss , leakage loss accounts for less than 15 % , and pressure loss is about 25 % , while heat transfer loss takes the major part of 60 % .

热泵型空调中均需安装四通换向阀，以实现空调制冷工况和制热工况的转换，但四通换向阀的存在会导致热泵系统的性能损失。

For heat pump system , reversing valve is indispensable to achieve the switch between cooling and heating conditions . However , the existence of reversing valve leads to inevitable performance loss to the heat pump system .

应用该模型及程序研究两种不同结构参数的往复式四通换向阀的动态特征，得到了一些很有意义的结果.联合收割机多路电磁换向阀的研制

Applying the programs to proceed the simulations for the dynamic behavior of the two typical parameters ' reversing valves , it drew some significant conclusions . THE RESEARCH AND PRODUCTION OF MULTIWAY ELECTROMAGNETIC REVERSING VALVES USED IN COMBINE

空调四通换向阀失效是封头的开裂引起的，而封头的开裂与封头材料内部有大量轴向分布的硫化锰夹杂物有关。

Therefore , the water leak failure of 4-way reversing valve for air-conditioning is caused by the cracking stems inside , which results form the large amount of sulfured manganese inclusions in the imported ferric stainless steel bars .

四通换向阀的损失包括四通阀内部高压侧制冷剂向低压侧制冷剂的泄漏损失、四通阀内部不规则流道产生的流动阻力压降损失、高温高压侧向低温低压侧及环境的传热损失三部分。

The reversing valve loss includes three parts : refrigerant leakage loss from high-pressure side to low-pressure side , pressure loss caused by the flow resistance of irregular flow passage , and heat transfer loss from high-temperature side to low-temperature side / environment .

本实用新型涉及一种端面密封手动三位四通换向转阀。

The utility model relates to an end-face sealed manual three-position four-way reversing rotary valve .