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Fireproof check valve

A check valve and valve body technology, applied in valve details, control valves, valve devices, etc., can solve the problems of eddy current in the exhaust passage and poor exhaust of the fire check valve, so as to improve the opening angle and improve the opening of the valve. range, the effect of rapid exhaust exhaust

Pending Publication Date: 2019-10-15
GUANGZHOU CAIDIE ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The current fire check valve still has the phenomenon of poor exhaust and vortex at the outlet of the exhaust channel

Method used

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  • Fireproof check valve
  • Fireproof check valve
  • Fireproof check valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] Such as figure 1 As shown in -6, a fire check valve includes a valve body 1, a valve element 2 and a supporting part 3; an exhaust passage 11 is arranged in the valve body 1, and the exhaust passage 11 has an inflow port 111 and an outflow port 112, The support part 3 is formed in the valve body 1 and is located in the exhaust passage 11, and is located between the inflow port 111 and the outflow port 112; a valve shaft 12 is provided on the valve body 1, and the valve element 2 is opened and closed around the valve shaft 12 Movement to open or close the exhaust passage 11.

[0051] The support part 3 includes a cylindrical valve seat 31 and a mating surface 32 formed at one end of the valve seat 31;

[0052] The valve element 2 includes a valve part 21 and an air guide part 22, wherein the valve part 21 is used to close the exhaust passage 11, and can form a sealed connection with the mating surface 32, and the air guide part 22 is located on the outer periphery of th...

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PUM

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Abstract

The invention provides a fireproof check valve. The check valve comprises a valve body, a valve element and a supporting part, wherein an exhaust passage is arranged in the valve body; the supportingpart is formed in the valve body and positioned in the exhaust passage; the valve element is arranged on the valve body in an openable and closable mode; the valve element comprises a valve plate partand an air guide part arranged on the periphery of the valve plate part; the valve plate part is provided with an annular seat ring and a valve plate main body positioned in the annular seat ring; the supporting part is provided with a matching surface; the valve element is in a closed state; the annular seat ring is attached to the matching surface of the supporting part, so that the valve platemain body blocks the exhaust passage to form a sealed connection; the valve body has two opposite side walls; the air guide part has a square profile; two side edges of the air guide part are in clearance fit with the two side walls; and when the valve element is in an open state, the two side walls, the valve plate part and the air guide part form outlets of the exhaust passage. According to thedevice, the valve element capable of completely guiding air is arranged, so that gas is smoothly discharged; and resistance of discharging gas is reduced.

Description

technical field [0001] The invention belongs to the technical field of residential exhaust ducts, and in particular relates to a fireproof check valve capable of completely guiding air. Background technique [0002] The fire check valve is one of the important components of the residential exhaust system. Its main function is to guide the exhausted smoke and prevent the smoke from flowing backwards. At the same time, it is equipped with a locking structure to facilitate effective fire prevention when necessary and ensure safety. ; Its diversion function is mainly to realize the opening and closing of the exhaust passage through the back and forth swing of the valve element. When exhausting smoke and exhaust is required, the valve element opens to form an outlet. A seal is formed between the valve bodies to prevent the phenomenon of stringing smoke and smell. [0003] For example, Chinese patent application 2016106548305 discloses a fire check valve, including a body, a valv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/03F16K27/02
CPCF16K15/03F16K27/0209
Inventor 聂法玉谭源生蒋光琼
Owner GUANGZHOU CAIDIE ENERGY SAVING TECH