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Ultralow-temperature dual-purpose one-way valve

A dual-purpose, one-way valve technology, used in lift valves, valve details, control valves, etc., can solve the problems of many low-temperature pipeline connection joints, large space, and increased risk of leakage, and achieve one-way flow or The effect of the truncation function

Inactive Publication Date: 2020-08-25
HUBEI TAIHE PETROCHEM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of the valve is very important. However, in the existing technology, if two types of valves are required to achieve the desired effect, there will be too many joints in the low-temperature pipeline, the risk of leakage will be greatly increased, and a large space is required. high cost

Method used

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  • Ultralow-temperature dual-purpose one-way valve
  • Ultralow-temperature dual-purpose one-way valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] Such as Figure 1-2 As shown, an ultra-low temperature dual-purpose check valve includes a valve body 1, the valve body 1 is provided with an inlet and outlet, the valve body 1 has a valve seat 2, and the valve seat 2 is provided with an opening communicating with the inlet and outlet. A valve disc 3 is provided at the opening, and the valve disc 3 can slide up and down along the shaft sleeve 13 . Described bonnet 5 and shaft sleeve 13 are installed as a whole, and bonnet 5 has threaded inner ring, bonnet 5 is threadedly connected with valve body 1 by threaded inner ring, and when bonnet 5 is screwed in, middle O-shaped The sealing ring 4 is pressed tightly on the valve body so as to keep the valve body and the valve cover tightly combined to achieve a sealing effect.

[0015] An extension bracket 7 is also connected to the valve cover 5 (the extension bracket is a sleeve type), and a valve stem nut assembly 8 is arranged inside the extension bracket 7, and the valve s...

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Abstract

The invention discloses an ultralow-temperature dual-purpose one-way valve. The one-way valve comprises a valve body, wherein a valve cover is arranged at the upper end of the valve body, a lengthenedbracket is installed at the top end of the valve cover, the lower end of a telescopic valve rod nut assembly penetrates through the lengthened bracket and the valve cover and is separated or contacted with a valve clack, the valve clack is aligned with a valve seat, and the valve clack is pressed against an outlet of the valve seat when the valve rod nut assembly extends downward. According to the ultralow-temperature dual-purpose one-way valve, two functions of the valve can be achieved.

Description

technical field [0001] The invention relates to a one-way valve, in particular to an ultra-low temperature dual-purpose one-way valve. Background technique [0002] Cryogenic stop valves and check valves play a very important role in the automatic control of the process of modern liquefied natural gas, liquid oxygen, liquid hydrogen, liquid helium, etc. In the low temperature pipeline, the stop valve is used to cut off the medium, and the lift check valve is used to prevent the medium from flowing backward. The performance of the valve is very important. However, in the existing technology, if two types of valves are required to achieve the desired effect, there will be too many joints in the low-temperature pipeline, the risk of leakage will be greatly increased, and a large space is required. high cost. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fruit size sorting device, which can quickly classify the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/02F16K15/06F16K41/02
CPCF16K1/02F16K15/06F16K41/02
Inventor 王晶秋
Owner HUBEI TAIHE PETROCHEM EQUIP