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Low temperature fire extinguisher valve structure

A fire extinguisher and valve technology, applied in the direction of lift valve, valve details, valve device, etc., can solve the problem of fire extinguisher valve leakage and other problems, and achieve the effect of good sealing reliability and convenient use.

Active Publication Date: 2018-11-02
ZHEJIANG ORIENTX FIRE SAFETY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current low-temperature fire extinguisher valve will leak when used in a low-temperature environment below -20 degrees Celsius

Method used

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  • Low temperature fire extinguisher valve structure
  • Low temperature fire extinguisher valve structure
  • Low temperature fire extinguisher valve structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: as figure 1 As shown, a low-temperature fire extinguisher valve structure includes a valve body 1; a valve body flow channel 3 arranged in the valve body; a valve core 2 for controlling the flow channel of the valve body; a riser sleeve 5; The first back-moving spring 4 and the fire extinguisher operating handle 6.

[0032] The flow channel of the valve body includes a main channel running through the upper and lower ends of the valve body, and a valve body outlet 3.3 arranged on the outer side of the valve body and communicating with the main channel. The lower port of the main channel constitutes the inlet of the valve body. The main channel includes an upper valve hole 3.1, a middle valve hole 3.2 located below the upper valve hole, a tapered valve hole 3.4 whose inner diameter gradually decreases from bottom to top, and a lower valve hole 3.5 located below the middle valve hole. The inner diameter of the middle valve hole is greater than the inner di...

Embodiment 2

[0044] Embodiment 2: the remaining structure of this embodiment is with reference to embodiment 1, and its difference is:

[0045] Such as figure 2 , image 3 As shown, a valve structure of a cryogenic fire extinguisher also includes an self-adaptive inflation and exhaust sealing structure. A sealing ring installation groove on the valve stem is arranged on the outer surface of the valve stem. The sealing ring on the valve stem is arranged in the installation groove of the sealing ring on the valve stem. An annular air-filling cavity 2.4 is arranged in the sealing ring on the valve stem. The outer surface of the sealing ring on the valve stem is also provided with an inflation intubation tube 2.5 communicating with the annular inflation cavity.

[0046] The adaptive inflation and exhaust sealing structure includes an adaptive on-off mechanism 7, a pressure-type inflation structure 8 and a main channel 9 in the valve stem.

[0047] Such as image 3 , Figure 4 As shown,...

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PUM

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Abstract

The invention discloses a low-temperature fire extinguisher valve structure, and aims at providing a low-temperature fire extinguisher valve structure which is convenient to use, good in sealing reliability and capable of effectively solving the problem that leakage will occur to an existing low-temperature fire extinguisher valve when the fire extinguisher valve is used in a low-temperature environment. The low-temperature fire extinguisher valve structure comprises a valve body, a valve body flow channel arranged in the valve body and a valve element. The valve body flow channel comprises a main flow penetrating through the upper end and the lower end of the valve body and a valve body outlet formed in the outer side face of the valve body and communicating with the main flow channel, a lower port of the main flow channel forms a valve inlet, and the main flow channel comprises a conical valve hole with the inner diameter gradually reduced from the bottom to the top. The valve element is used for controlling the valve body flow channel to be opened and closed. The valve element comprises a valve rod, a valve rod upper sealing ring and a valve rod lower sealing ring, wherein the valve rod is inserted into the main flow channel, the valve rod upper sealing ring is arranged on the valve rod and in sealed connection with the main flow channel, and the valve rod lower sealing ring is arranged on the valve rod and in sealed connection with the conical valve hole. The valve body outlet is located between the valve rod upper sealing ring and the valve rod lower sealing ring.

Description

technical field [0001] The invention relates to a valve structure, in particular to a low temperature fire extinguisher valve structure. Background technique [0002] Cryogenic fire extinguishers are generally used in northern regions where the temperature has been lower than -20 degrees Celsius for a long time. The current low-temperature fire extinguisher valves usually consist of a valve body, a valve stem, a pressure handle and a handle. The body cooperates to form the sealing ring of the sealing structure. When the current low temperature fire extinguisher valve is used in a low temperature environment below -20 degrees Celsius, there will be a problem of leakage of the fire extinguisher valve. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies in the prior art, and provide a low-temperature fire extinguisher valve that is easy to use, has good sealing reliability, and can effectively solve the problem of leakage of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K41/02F16K1/00F16K1/36
CPCF16K1/00F16K1/36F16K41/02
Inventor 陈巅杨俊王锡均
Owner ZHEJIANG ORIENTX FIRE SAFETY EQUIP