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Expansion valve assembly

An expansion valve and component technology, applied in refrigeration components, fluid circulation arrangements, refrigerators, etc., can solve the problems of inconvenient installation and disassembly of expansion valves, affecting the use of adjustment springs, and oxidation of adjustment springs and rubber seals. It has the effect of good installation, not easy to be caught, and good sealing performance.

Pending Publication Date: 2019-05-24
浙江英科新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Both the adjusting screw and the adjusting spring of the existing expansion valve are arranged inside the diversion cavity and are in direct contact with the refrigerant, which not only affects the use of the adjusting spring, but also easily oxidizes the adjusting spring and the rubber seal, and the existing The input port and output port of the expansion valve are connected to the conduit by welding, which makes it inconvenient to install and disassemble the expansion valve

Method used

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 In the described embodiment, an expansion valve assembly includes a valve body 1, the upper half of the valve body 1 is provided with a piston chamber 3, the lower half of the valve body 1 is provided with a diversion chamber 2, and the piston chamber 3 It communicates with the diversion cavity 2, and the side of the valve body 1 is provided with a temperature sensing package interface 15, a balance tube interface 14, a refrigerant input port 6 and a refrigerant output port 7, and the temperature sensing package port 15 and the balance tube port 14 are connected to the piston cavity 3 connected, the refrigerant input port 6 and the refrigerant output port 7 are connected to the diversion chamber 2, the balance pipe interface 14 is placed on the side of the piston chamber 3 and close to the position of the diversion chamb...

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PUM

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Abstract

The invention discloses an expansion valve assembly. The expansion valve assembly comprises a valve body. The valve body is internally provided with a piston chamber and a flow guiding chamber, a temperature sensing packet interface, a balanced pipe interface, a cooling medium input end and a cooling medium output end. The temperature sensing packet interface and the balanced pipe interface both communicate with the piston cavity, the cooling medium input end and the cooling medium output end both communicate with the flow guiding chamber, the piston chamber is internally provided with a membrane, a piston head and a piston rod, one end of the piston rod is arranged in the piston chamber, the other end of the piston rod is arranged in the flow guiding chamber, the piston head is installedon the piston rod and is arranged between the temperature sensing packet interface and the balanced pipe interface, the valve body is provided with an adjusting mechanism, the membrane is installed inthe piston chamber and is arranged between the adjusting mechanism and the piston rod, the flow guiding chamber is internally provided with a throttling device, the piston rod is connected with the throttling device, and the cooling medium input end and the cooling medium output end are both provided with a linking-up mechanism. The expansion valve assembly has the beneficial effects that the using life is long, disassembling and installing are convenient, the application range is wide, the sealing property is great, and safety and reliability are high.

Description

technical field [0001] The invention relates to the related technical field of air energy water heaters, in particular to an expansion valve assembly. Background technique [0002] The expansion valve is an important part in the refrigeration system, generally installed between the liquid storage cylinder and the evaporator. The expansion valve makes the medium-temperature and high-pressure liquid refrigerant become low-temperature and low-pressure wet steam through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect. The expansion valve controls the flow rate of the valve through the change of the superheat at the end of the evaporator to prevent Insufficient utilization of evaporator area and knocking phenomenon. [0003] Both the adjusting screw and the adjusting spring of the existing expansion valve are arranged inside the diversion cavity and are in direct contact with the refrigerant, which not only affects the use of...

Claims

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Application Information

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IPC IPC(8): F25B41/06F25B41/31
Inventor 吴忠南卢丽华
Owner 浙江英科新能源有限公司
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