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Low-temperature regulating valve

A regulating valve, low temperature technology, applied in the direction of heat preservation, sliding valve, valve details, etc., can solve the problems of large installation space and difficult installation of valves, to prevent leakage of low temperature medium, eliminate unbalanced force, and excellent sealing performance Effect

Active Publication Date: 2017-01-11
WUZHONG INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to overcome the low temperature valves in the prior art generally adopting a long and high neck structure, the installation space of the valve is too large, and the operating equipment often needs to reserve a large enough space, which causes great difficulties to the installation

Method used

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Embodiment Construction

[0019] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0020] Such as figure 1 A low temperature regulating valve shown includes a valve body 1, a sleeve is fixedly installed in the valve body 1, and the sleeve includes an upper sleeve 3 and a lower sleeve 22, and the upper sleeve 3 and the The lower sleeve 22 adopts a direct pressure design, and the upper sleeve 3 and the lower sleeve 22 are compressed to form a valve installation dimension chain. The valve core 2 is slidingly installed in the sleeve, and the valve core 2 is a balanced perforated structure. A spring energy storage sealing ring 20 is arranged between the outer wall of the valve core 2 and the inner wall of the sleeve, the upper end of the valve c...

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Abstract

The invention relates to a low-temperature regulating valve. Sleeves are fixedly installed in a valve body. A valve element is installed in the sleeves in a sliding manner. A spring energy storage seal ring is arranged between the outer wall of the valve element and the inner walls of the sleeves. A supporting sleeve is fixedly installed on the sleeves. A seal base is fixedly installed on the supporting sleeve. A corrugated pipe part is fixedly installed on the lower surface of the seal base and is arranged in the supporting sleeve. An upper valve deck is fixedly installed on the seal base. A seal ring is arranged between the upper valve deck and the seal base. The bottom of the upper valve deck is shaped like a barrel. A valve rod is fixedly installed on the valve element and sequentially penetrates the sleeves, the corrugated pipe part, the seal base and the upper valve deck. A valve rod seal ring is arranged between the seal base and the valve rod. A packing assembly is arranged between the upper valve deck and the valve rod. An isolation barrel part is arranged on the supporting sleeve in a sleeving manner and is fixedly connected with the valve body and the upper valve deck. By means of the low-temperature regulating valve, the sealing performance of the valve is improved, the installation space is saved, the deformation of the valve rod is very small, the sealing performance is excellent, and the service life of the valve is long.

Description

technical field [0001] The invention relates to the technical field of low temperature valves, in particular to a low temperature regulating valve. Background technique [0002] With the continuous development of my country's low-temperature industry and the wide application of low-temperature media such as liquefied petroleum gas, liquefied natural gas, liquid oxygen, liquid nitrogen, and liquid ammonia, cryogenic valves have received more and more attention. These media are used in production, processing, transportation and storage. A large number of low-temperature valves are needed, and most of the low-temperature valves used in low-temperature equipment are imported. In the field of low-temperature industrial automation control in my country, it is difficult to meet the normal, safe and reliable conditions of low-temperature equipment due to the limitation of the sealing and reliability of valves. running. [0003] At the same time, low-temperature valves generally adopt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/26F16K3/30F16K3/314F16K27/08F16K41/10F16L59/16
CPCF16K3/267F16K3/30F16K3/314F16K27/08F16K41/10F16L59/161
Inventor 马玉山罗先念常占东李虎生石月娟
Owner WUZHONG INSTR
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