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Rotary reversing valve

A rotary reversing valve and valve core technology, applied in valve details, valve devices, multi-port valves, etc., can solve the problems of impurities embedded and stuck, increase the matching clearance, avoid equipment failure, and improve the compatibility of impurities Effect

Active Publication Date: 2019-03-05
ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there will inevitably be some impurities in the system. Once the impurities in the system enter the fitting gap, it may cause impurities to be embedded in the matching parts of the valve core part and the valve body part, resulting in the failure consequence of not being able to rotate and being stuck.

Method used

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Embodiment Construction

[0047] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0048] figure 2 It is a structural schematic diagram of a rotary reversing valve provided by the present invention, image 3 for figure 2 The front perspective schematic diagram of the spool part of the medium rotary reversing valve, Figure 4 for figure 2 The side perspective schematic diagram of the spool part of the middle rotary reversing valve, Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of the middle valve core part in the A-A direction, Figure 6 for Figure 5 The enlarged schematic diagram of the structure of the middle spool part in region I.

[0049] Such as figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 shown. In this embodiment, the rotary reversing va...

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Abstract

The invention discloses a rotary reversing valve. The rotary reversing valve comprises a valve core part, the valve core part comprises a valve core with a first flow channel and a second flow channel, the first flow channel is provided with two first valve port portions on a circumferential outer edge portion of the valve element, the second flow channel is provided with two second valve port portions on the circumferential outer edge portion of the valve element, and axial containing grooves are formed in the portions, wherein the second valve port portions are opposite to the first valve port portions, of the circumferential outer edge portion; and the rotary reversing valve further comprises an axial sealing part, the axial sealing part comprises an elastic component and a sealing component, the elastic component is arranged in the containing groove, and the sealing part is arranged in the containing grooves and partially protrudes out of the circumferential outer edge portion. According to the rotary reversing valve, the impurity compatibility of products can be improved, and then the valve element and a valve body are not prone to be clamped.

Description

technical field [0001] The invention relates to the technical field of refrigeration system control, in particular to a rotary reversing valve. Background technique [0002] In refrigeration systems, reversing valves are generally used to realize the conversion function of cooling and heating. At present, with the development of industry, large-scale refrigeration equipment is constantly being used in the refrigeration industry. The cooling capacity requirements for the reversing valve are also continuously increasing, which requires that the volume of the reversing valve product need to be larger, so the rotary reversing valve with a larger structure is often used to switch the cooling / heating function of the system. [0003] figure 1 It is a schematic structural diagram of a rotary reversing valve used in a refrigeration system in the background art. Such as figure 1 shown. The refrigeration system includes a compressor 200 , a first heat exchanger 300 , a rotary reve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/085F16K5/08F16K31/04F16K31/12
CPCF16K5/0407F16K5/0442F16K11/0856F16K31/041F16K31/12
Inventor 不公告发明人
Owner ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CO LTD
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