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Flow guide anti-explosion valve

An explosion-proof valve and diversion hole technology, used in safety valves, balance valves, valve devices, etc., can solve the problems of flame escape, flame cooling and dispersion, and achieve the effect of reducing the temperature and prolonging the cooling time.

Inactive Publication Date: 2009-04-01
NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this structure is that if the explosive gas is not evenly distributed in the valve cavity, local pressure peaks will be generated in certain directions in the valve cavity. At the same time, the flame retardant sheet 7 may not sufficiently cool and disperse the flame, resulting in Escape from flame retardant sheet 7

Method used

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  • Flow guide anti-explosion valve

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] A preferred embodiment of the diversion explosion-proof valve of the present invention is shown in Figure 4. The valve cover 5 is fixedly connected with the disc-shaped valve seat 1 through bolts 6 and forms a valve cavity together with the valve seat 1, and the valve plate 3 is located in the valve cavity. Inside, the valve seat 1 is pressed tightly by the spring 4 in the valve cavity, and the valve plate 3 and the valve seat 1 are sealed by an "0"-shaped sealing ring 2, and a flame-retardant sheet 7 is placed on the outer ring of the valve cavity to prevent The combustion sheet 7 is wound into a ring by a steel strip; at least one annular flow deflector 9 is provided on the inner circumference of the flame-retardant sheet 7, and at least one group of bar-shaped flow guide holes 94 are opened on the flow deflector substrate 92, There is also at least ...

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PUM

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Abstract

The present invention discloses a flow-guiding explosion-proofing valve. It includes the following several portions: valve seat, valve cover which is fixedly connected with valve seat and is formed into a valve cavity together with said valve seat, valve plate which is tightly pressed on the valve seat by means of spring in the valve cavity, at least one fire-resisting plate positioned on the gas flowing pathway in the valve cavity, a flow-guiding cover positioned between the fire-resisting plate and value cavity, at least one group of strip-shaped flow-guiding holes cut on the base plate of said flow-guiding cover and at least one group of guide plate positioned between the base plate of said flow-covering cover and fire-resisting plate.

Description

technical field [0001] The invention relates to an explosion-proof valve, in particular to an explosion-proof valve for the crankcase of an internal combustion engine. The valve can protect the crankcase under the condition of detonation caused by oil mist in the crankcase of the internal combustion engine. Background technique [0002] In the explosion-proof device that is used for internal combustion engine crankcase at present, known a kind of explosion-proof valve as shown in Figure 1, it comprises the valve seat 1 of disk shape, the valve cover 5 that is connected with valve seat 1 by bolt 6, valve seat 1 and A valve cavity is formed between the valve cover 5, the valve cavity includes an "O"-shaped sealing ring 2 embedded on the valve seat 1, and the valve plate 3 pressed against the sealing ring 2 and the valve seat 1 presses the valve plate 3 Tight spring 4, spring 4 pushes against bonnet 5 simultaneously, also has a flame retardant sheet 7 on the outer ring of valve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B77/10F16K17/04
Inventor 黄立贤周友发金福刚虞安治
Owner NO 711 RES INST CHINA SHIPPING HEAVY IND GRP