Expansion valve having two-way valve functions

A technology of expansion valve and two-way valve, which is applied in the direction of fluid circulation arrangements, refrigeration components, refrigerators, etc., can solve problems such as error-prone, cumbersome installation methods, and poor integration, so as to improve the accuracy of installation and save installation time , cost reduction effect

Active Publication Date: 2013-08-14
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology uses four one-way valves connected to one expansion valve, which has poor integration, cu

Method used

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  • Expansion valve having two-way valve functions
  • Expansion valve having two-way valve functions
  • Expansion valve having two-way valve functions

Examples

Experimental program
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Example Embodiment

[0020] Example 1

[0021] Such as figure 1 As shown, this embodiment includes: a temperature sensing device 1, a valve body 2, an output channel 4 connected to the exhaust pipe of the evaporator, a throttle valve 21, a first inlet and outlet pipe 6, and a second inlet and outlet pipe 10 on the valve body 2. , The mandrel 3 of the regulating throttle valve 21 and the four one-way valves 5, in which: the temperature sensing device 1 and the output channel 4 are connected, one end of the mandrel 3 is in contact with the temperature sensing device 1, and the other end is with the throttle valve 21 In contact, the first inlet and outlet pipe 6 and the second inlet and outlet pipe 10 are respectively connected to the evaporator. Four one-way valves 5 form a bridge pipeline. The first inlet end and the first outlet end of the bridge pipeline are connected to the first The inlet and outlet pipe 6 are connected, the second inlet end and the second outlet end are connected with the second ...

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PUM

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Abstract

An expansion valve having two-way valve functions is utilized in a heat pump system in the technical field of valve structures, and comprises a temperature sensing device, a valve body, an output channel which is arranged on the valve body and connected with an evaporator exhaust pipe, a first inlet/outlet pipe and a second inlet/outlet pipe which are connected with an evaporator respectively, a throttle, an ejection rod which is used for adjusting the throttle, and four one-way valves, wherein the temperature sensing device is communicated with the output channel; one end of the ejection rod is contacted with the temperature sensing device, and the other end of the ejection rod is contacted with the throttle; the four one-way valves form a bridge pipeline structure; a first inlet end and a first outlet end of a bridge pipeline are communicated with the first inlet/outlet pipe; a second inlet end and a second outlet end of the bridge pipeline are communicated with the second inlet/outlet pipe; the first inlet end and the second inlet end are communicated with an inlet end of the throttle; and the first outlet end and the second outlet end are communicated with an outlet end of the throttle. The expansion valve has two-way circulating and throttling functions, and can work stably in an environment with greater vibration.

Description

technical field [0001] The invention relates to an expansion valve with two-way valve function used in a heat pump system in the field of valve structure technology. Background technique [0002] In the cooling and heating dual-purpose heat pump air conditioning system, two expansion valves are usually combined, one of which is cooling and the other expansion valve is heating to adapt to the flow of refrigerant, and the conversion between cooling and heating functions is through a Four-way valve to switch. [0003] After searching the prior art, it was found that the Chinese Patent Document No. CN2931997, published on 2007-08-08, records a thermal expansion valve with the function of a check valve. A one-way valve hole, the upper end of the one-way valve hole communicates with the inlet, the lower end of the one-way valve hole communicates with the outlet, and a one-way valve stem matched with the valve hole is arranged in the one-way valve hole. However, this technology c...

Claims

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Application Information

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IPC IPC(8): F25B41/06F25B41/31
Inventor 陈江平施骏业严瑞东高天元颜志宇
Owner SHANGHAI JIAO TONG UNIV
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