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Low-temperature emergency shutoff valve of novel spring air cylinder separation structure

A spring cylinder, separate technology, applied in the field of low-temperature emergency shut-off valve structure, can solve the problem of inability to realize emergency shut-off, and achieve the effects of weight reduction, improved sealing, and height reduction

Active Publication Date: 2019-06-14
SHANGHAI FIGURE CRYOGENIC VALVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unable to realize its emergency cut-off function

Method used

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  • Low-temperature emergency shutoff valve of novel spring air cylinder separation structure
  • Low-temperature emergency shutoff valve of novel spring air cylinder separation structure
  • Low-temperature emergency shutoff valve of novel spring air cylinder separation structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1-Figure 5 As shown, a new low temperature emergency shut-off valve with separate spring and cylinder structure includes a valve body 1, the valve body includes a valve cover 6, an upper cover 7 and a cylinder head 8, a valve disc 2 is arranged in the valve body, and the valve disc and the valve stem 3 connection, a connecting pipe 4 is provided on the outside of the valve stem, and a spring 5 is set between the connecting pipe and the valve stem. Between the covers; the connecting rod is fixed to the piston 10, the piston is connected to the cylinder block 11, the cylinder block is located on the outside of the piston, and the cylinder block and the cylinder head are connected by screws; the valve body also includes a manual device 12, and the manual device includes guide wheels 16 , fixed pin 17, spiral groove body 18 and handle 19, connecting rod is connected with fixed pin, and handle is fixedly connected with spiral groove body, and guide wheel and ...

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PUM

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Abstract

The invention provides a low-temperature emergency shutoff valve of a novel spring air cylinder separation structure. A valve body is included and comprises a valve cover, an upper cover and a cylinder cover. A valve clack is arranged in the valve body and connected with a valve rod. A connecting pipe is arranged on the outer side of the valve rod. The part between the connecting pipe and the valve rod is sleeved with a spring. The valve rod penetrates through the valve cover and the upper cover to be connected with a connecting rod, and the connecting pipe is located between the valve cover and the upper cover. The connecting rod is fixed to a piston, the piston is connected with an air cylinder body, the air cylinder body is located on the outer side of the piston, and the air cylinder body and the cylinder cover are connected through screws. The valve body further comprises a manual device. The manual device comprises a guiding wheel, a fixing pin, a spiral groove body and a handle,the connecting rod is connected with the fixing pin, the handle is fixedly connected with the spiral groove body, and the guiding wheel and the fixing pin upwards rotate along the spiral groove section of the spiral groove body.

Description

technical field [0001] The invention relates to mechanical equipment, in particular to a novel structure of a low-temperature emergency cut-off valve with a separate spring and cylinder structure. Background technique [0002] Cryogenic emergency shut-off valves are often used in working conditions such as low-temperature tank cars, tank containers, and low-temperature pipeline control. Remote control monitoring, on-site manual control and automatic cut-off function in case of emergency (fire, abnormal temperature) can be realized through pneumatic control. [0003] Conventional low-temperature emergency shut-off valves on the market are generally characterized by large dimensions and heavy weight, resulting in defects such as large installation pipeline loads and waste of installation space. The low temperature emergency shut-off valve generally includes the main valve, packing connection part, cylinder, manual device, etc. Due to the special working condition of low temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/38F16K1/00F16K1/32F16K1/36F16K1/48F16K27/02F16K31/60F16K41/02F16K41/04
Inventor 吴淑民陈海涛朱厚余罗学武张伟鹏
Owner SHANGHAI FIGURE CRYOGENIC VALVES
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