CN203223599U - Decompression anti-explosion valve - Google Patents
Decompression anti-explosion valve Download PDFInfo
- Publication number
- CN203223599U CN203223599U CN 201320218697 CN201320218697U CN203223599U CN 203223599 U CN203223599 U CN 203223599U CN 201320218697 CN201320218697 CN 201320218697 CN 201320218697 U CN201320218697 U CN 201320218697U CN 203223599 U CN203223599 U CN 203223599U
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- Prior art keywords
- explosion
- flange
- explosion valve
- spring
- pressure
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Abstract
The utility model relates to a decompression anti-explosion valve. The decompression anti-explosion valve comprises a flange, a sealing cover and an anti-explosion valve, wherein the flange and a device with the explosion potential hazard seal each other and are fixedly connected with each other, the sealing cover covers the flange in a sealing mode, and the anti-explosion valve is installed in the sealing cover and covers the center hole peripheral circle of the flange in a sealing mode. The anti-explosion valve comprises an anti-explosion valve body, a spring and a supporting rod, wherein the anti-explosion valve body will bound away to conduct decompression when the pressure in the device is too large, the spring enables the anti-explosion valve body to be connected with the center hole peripheral circle of the flange in a sealed mode, and the supporting rod is perpendicular to the flange and is fixedly connected with the flange. One end of the anti-explosion body is connected with the supporting rod in a rotatable mode, and the other end of the anti-explosion valve body is tightly pressed on the flange by the spring. According to the decompression anti-explosion valve, the spring is used for enabling the anti-explosion body to be connected with the flange in a sealing mode. When the pressure in the device is too large, the anti-explosion valve body bounds away and then rapidly resets. Therefore, air is prevented from entering the device, and secondary explosion is avoided. The anti-explosion valve body can be repeatedly used. Due to the fact that the anti-explosion valve body tightly abuts against the flange by means of the elastic force the spring, the anti-explosion valve body can be used no matter where the anti-explosion valve is used, and the application range of the anti-explosion valve body is wide.
Description
Technical field
The utility model relates to explosion-proof field, particularly a kind of pressure-relief explosion-proof valve.
Background technique
Existing explosion-proof valve has two kinds, and a kind of is to make explosion proof door be covered in the air outlet by gravity, and another kind is in the air outlet burst disk to be set.First kind of explosion-proof valve is because its explosion proof door is to rely on gravity to be sealed on the air outlet, so its mounting type can be restricted, its application area is comparatively limited to; And second kind of explosion-proof valve all needs to change burst disk because burst disk is disposable products after each pressure release, uses comparatively inconvenience.
Summary of the invention
The purpose of this utility model provides a kind of recycling and widely used pressure-relief explosion-proof valve.
For achieving the above object, the technical solution adopted in the utility model is: a kind of pressure-relief explosion-proof valve, it comprises the flange that seals mutually and fixedly connected with the equipment that has hidden peril of explosion, be covered in the sealing cover on the described flange and be installed in the sealing cover and be covered in explosion proof door on the center hole border of described flange, described explosion proof door comprises the explosion proof door body that is flicked pressure release when the equipment internal pressure is excessive, spring and strut vertical with flange and that fixedly connected that explosion proof door body and the center hole border of flange are tightly connected, described explosion proof door body one end and described strut rotate be connected the other end by spring compression on flange.
Optimize, also be provided with seal ring between described explosion proof door body and the flange, described seal ring comprises the seal groove of the center hole border of being fixed in flange and is arranged on the interior sealing gasket of seal groove.
Optimize, spring can adopt helical spring or turriform spring.
Optimize, the described flange side's of being annular or ring, described sealing cover are cuboid shape or hemisphere type.
Optimize, described explosion proof door body is made by metallic material.
Because technique scheme is used, the utility model compared with prior art has following advantage: the utility model utilizes spring, and this is connected with flange seal with explosion proof door, when the equipment internal pressure is excessive, reset rapidly after this quilt of explosion proof door flicks, prevent that air from entering, and avoids secondary explosion, can use repeatedly, because it relies on the elastic force of spring to push against on flange, no matter how it is installed on the equipment can both be used, and application area is wider.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model pressure-relief explosion-proof valve during normal pressure among the embodiment one;
Accompanying drawing 2 is the structural representation of the utility model pressure-relief explosion-proof valve during pressure release among the embodiment one;
In the above accompanying drawing: 1, flange; 2, sealing cover; 3, explosion proof door; 32, explosion proof door body; 33, spring; 34, strut; 41, seal groove; 42, sealing gasket.
Embodiment
Below in conjunction with embodiment shown in the drawings the utility model is further described.
Embodiment one
As shown in Figure 1, the pressure-relief explosion-proof valve comprises flange 1, sealing cover 2 and is installed in explosion proof door 3 and the seal ring between explosion proof door 3 and flange 1 between flange 1, the sealing cover 2.Exist on the equipment of hidden peril of explosion to set out pore, flange 1 is square flange, and the cross section of sealing cover 2 also is square, and flange 1 is sealedly attached to the border of air outlet hole, and sealing cover 2 is sealed on around the outer of flange 1, blocks air outlet hole.
In the present embodiment, seal ring comprises the seal groove 41 of the center hole border of being fixed in flange 1 and is arranged on sealing gasket 42 in the seal groove 41; Explosion proof door body 32 on the center hole border that explosion proof door comprises the strut 34 that arranges perpendicular to flange 1, be covered in flange 1 and the spring 33 that the center hole border of explosion proof door body 32 and flange 1 is tightly connected, strut 34 is positioned at the outside of seal ring, explosion proof door body 32 is connected with strut 34 phase hinges, and spring 33 is connected between flange 1 and the explosion proof door body 32 and is in extended state.When the equipment internal pressure was excessive, explosion proof door body 32 free ends flick after the pressure release to be retracted rapidly by spring 33 to be close on the sealing gasket 42, thereby played the effect of pressure-relief explosion-proof, and prevented that air from entering, and avoids secondary explosion.
The thickness of explosion proof door body 32 is not limit, and chooses 10mm in the present embodiment.Spring can be adjusted according to the withstand voltage degree of equipment the impacting force of explosion proof door body 32, and computational methods are as follows: establishing the setting power that the pressure-relief explosion-proof valve opens is F1, meets the frictional force F2 of effect with guide rail, and explosion-proof deadweight Mg, spring power when the pressure-relief explosion-proof valve is P.Formula is as follows: when pressure-relief explosion-proof valve side is adorned: F1=P-F2; When the pressure-relief explosion-proof valve weighs straight the installation: F1=P-Mg-F2.
The above-mentioned parts that relate to are made for the fire prevention plastic material except sealing gasket, and all the other are metallic material and make.Since of the present utility model simple in structure, make easily, be fit to middle-size and small-size enterprise and produce.
Embodiment two
Present embodiment and embodiment's one difference is: sealing gasket 42 is fixedly connected with explosion proof door body 32, and itself and seal groove 41 are complementary.During normal pressure, sealing gasket 42 is embedded in seal groove 41, and during pressure release, sealing gasket 42 ejects with explosion proof door body 32 and separates with seal groove 41.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model as changing flange, sealing cover and spring configuration and size.
Claims (5)
1. pressure-relief explosion-proof valve, it comprises the flange (1) that seals mutually and fixedly connected with the equipment that has hidden peril of explosion, be covered in the sealing cover (2) on the described flange (1) and be installed in the sealing cover (2) and be covered in explosion proof door (3) on the center hole border of described flange (1), it is characterized in that: described explosion proof door (3) comprises the explosion proof door body (32) that is flicked pressure release when the equipment internal pressure is excessive, spring (33) and strut (34) vertical with flange and that fixedly connected that explosion proof door body (32) and the center hole border of flange (1) are tightly connected, described explosion proof door body (32) one ends and described strut (34) rotate and are connected the other end and are pressed on the flange (1) by spring (33).
2. pressure-relief explosion-proof valve according to claim 1, it is characterized in that: also be provided with seal ring between described explosion proof door body (32) and the flange (1), described seal ring comprises the seal groove (41) of the center hole border of being fixed in flange (1) and is arranged on the interior sealing gasket (42) of seal groove (41).
3. pressure-relief explosion-proof valve according to claim 1, it is characterized in that: spring (33) can adopt helical spring or turriform spring.
4. pressure-relief explosion-proof valve according to claim 1, it is characterized in that: described flange (1) is square annular or ring, and described sealing cover (2) is cuboid shape or hemisphere type.
5. pressure-relief explosion-proof valve according to claim 1, it is characterized in that: described explosion proof door body (32) is made by metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320218697 CN203223599U (en) | 2013-04-26 | 2013-04-26 | Decompression anti-explosion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320218697 CN203223599U (en) | 2013-04-26 | 2013-04-26 | Decompression anti-explosion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223599U true CN203223599U (en) | 2013-10-02 |
Family
ID=49250603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320218697 Expired - Lifetime CN203223599U (en) | 2013-04-26 | 2013-04-26 | Decompression anti-explosion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586775A (en) * | 2021-07-26 | 2021-11-02 | 永嘉瑞杰阀门制造有限公司 | Explosion-proof valve |
-
2013
- 2013-04-26 CN CN 201320218697 patent/CN203223599U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586775A (en) * | 2021-07-26 | 2021-11-02 | 永嘉瑞杰阀门制造有限公司 | Explosion-proof valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |