CN201401538Y - Negative pressure resistant explosion release valve - Google Patents
Negative pressure resistant explosion release valve Download PDFInfo
- Publication number
- CN201401538Y CN201401538Y CN2009200394277U CN200920039427U CN201401538Y CN 201401538 Y CN201401538 Y CN 201401538Y CN 2009200394277 U CN2009200394277 U CN 2009200394277U CN 200920039427 U CN200920039427 U CN 200920039427U CN 201401538 Y CN201401538 Y CN 201401538Y
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- CN
- China
- Prior art keywords
- negative pressure
- diaphragm
- clamp holder
- valve
- heavy hammer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a negative pressure resistant explosion release valve which comprises a lower clamp holder, an upper clamp holder, a diaphragm, a lateral porous plate, a heavy hammer valveplate and a tube body, wherein the diaphragm is connected with the tube body and is evenly fixed between the upper clamp holder and the lower clamp holder, the lateral porous plate is arranged on oneside of the diaphragm close to the lower clamp holder, the heavy hammer valve plate is arranged on the lateral side of the upper clamp holder. The negative pressure resistant explosion release valveis applicable to inflammable and explosive material conveying and collecting system employing negative pressure production process, combines the diaphragm explosion release valve with heavy hammer valve plate to satisfy higher negative pressure production demands and adopts the diaphragm in the inner layer of the valve to realize automatic explosive release and pressure relief under micro positivepressure situation (explosive precursor); meanwhile, under system negative pressure effect, the heavy hammer valve plate can recover automatically to prevent air suction from causing explosion again.
Description
Technical field
The utility model belongs to valve technology field, is specifically related to a kind of venting of dust explosion valve of anti-negative pressure.
Background technique
Domestic to inflammable explosive material in the pipeline and collecting device of negative-pressure pneumatic transmission system, supporting venting of dust explosion valve is diaphragm (quick-fried diaphragm) formula, in case behind the diaphragm breakage, make cut place and atmosphere UNICOM, the oxygen content increase under system's suction function, have a large amount of air to be inhaled in the system, because of may cause the danger of blast once more.Therefore, in inflammable and explosive material negative pressure transportation and collecting system, still there is potential safety hazard.
The model utility content
Technical problem to be solved in the utility model provides a kind of venting of dust explosion of anti-negative pressure valve, can eliminate the blast omen that various factors causes in the production system, equipment in the protective system and setting.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of venting of dust explosion of anti-negative pressure valve, comprise lower gripper, go up clamp holder, diaphragm, side direction porous slab, weight valve plate and body, lower gripper links to each other with body, diaphragm evenly is fixed between clamp holder and the lower gripper, diaphragm also is provided with the side direction porous slab near a side of lower gripper, and the heavy hammer type valve plate places the clamp holder outside.
Wherein, the position near lower gripper on the body also is provided with nitrogen sparge tube, is used to prevent accumulated powder.
Wherein, fixedlying connected of last clamp holder and lower gripper is sealing surface, prevents air penetration.
Wherein, adopt connecting bolt to fix between last clamp holder, lower gripper and the diaphragm.
Beneficial effect: the venting of dust explosion of anti-negative pressure valve of the present utility model is applicable to inflammable and explosive material conveying of negative pressure production technology and collecting system, diaphragm type venting of dust explosion valve and heavy hammer type valve plate is combined, can satisfy high negative production demand, can occur under the micro positive pressure (blast omen) again, the diaphragm of valve nexine can open quick-fried pressure release automatically, simultaneously under system's suction function, the heavy hammer type valve plate can automatically reply, and prevents that air from sucking and the blast once more that causes.Nitrogen is set in the valve clearance purges, prevent the dust savings.The valve venting of dust explosion of anti-negative pressure valve of the present utility model is without any need for the dynamic Control switch, but by self pressure control in the production system, eliminates hidden peril of explosion, equipment and setting in the protective system.
Description of drawings
Fig. 1 is the structural representation of the venting of dust explosion of anti-negative pressure valve of the present utility model.
Embodiment:
Below in conjunction with specific embodiment the venting of dust explosion of anti-negative pressure valve of the present utility model is further specified.
Embodiment 1:
As shown in Figure 1, the venting of dust explosion of anti-negative pressure valve of the present utility model comprises lower gripper 1, goes up clamp holder 2, diaphragm 3, side direction porous slab 4, weight valve plate 5 and body 7.
Position near lower gripper 1 on the body 7 also is provided with nitrogen sparge tube 6, and nitrogen sparge tube 6 can prevent accumulated powder in valve, and the preferred DN25 of tracheae bore needs the preferred 0.2MPa of source nitrogen pressure, the preferred 0.8M3/min of consumption.
The venting of dust explosion of anti-negative pressure valve of the present utility model can be provided with several on pipeline and deduster housing, easily damaged parts is a diaphragm 3, after the damaged pressure release of micro positive pressure (system or certain equipment have the blast sign) occurring, change damaged diaphragm 3 after finding out system's reason and eliminating fault again, make the negative pressure explosion-released valve recover all functions of use.
Claims (4)
1, a kind of venting of dust explosion of anti-negative pressure valve, it is characterized in that it comprises lower gripper (1), goes up clamp holder (2), diaphragm (3), side direction porous slab (4), weight valve plate (5) and body (7), lower gripper (1) links to each other with body (7), diaphragm (3) evenly is fixed between clamp holder (2) and the lower gripper (1), diaphragm (3) also is provided with side direction porous slab (4) near a side of lower gripper (1), and heavy hammer type valve plate (5) places clamp holder (2) outside.
2, the venting of dust explosion of anti-negative pressure valve according to claim 1 is characterized in that the position that body (7) is gone up near lower gripper (1) also is provided with nitrogen sparge tube (6).
3, the venting of dust explosion of anti-negative pressure valve according to claim 1 is characterized in that the face seal of fixedlying connected of clamp holder (2) and lower gripper (1).
4, the venting of dust explosion of anti-negative pressure valve according to claim 1 is characterized in that clamp holder (2) and lower gripper (1) are fixing by connecting bolt (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200394277U CN201401538Y (en) | 2009-04-14 | 2009-04-14 | Negative pressure resistant explosion release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200394277U CN201401538Y (en) | 2009-04-14 | 2009-04-14 | Negative pressure resistant explosion release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401538Y true CN201401538Y (en) | 2010-02-10 |
Family
ID=41661335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200394277U Expired - Lifetime CN201401538Y (en) | 2009-04-14 | 2009-04-14 | Negative pressure resistant explosion release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401538Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380265A (en) * | 2011-11-09 | 2012-03-21 | 江苏天宇石化冶金设备有限公司 | Explosion-proof explosion-release full-automatic bag-type filtering device for pulverized bituminous coal |
| CN102389672A (en) * | 2011-10-19 | 2012-03-28 | 无锡双雄通用机械有限公司 | Flame-proof anti-explosion anticorrosion bag type dust-removing device for drying brown coal |
| CN103821978A (en) * | 2014-02-26 | 2014-05-28 | 南通原亚精密机械有限公司 | Explosion venting valve |
| CN108006286A (en) * | 2016-10-31 | 2018-05-08 | 张跃 | A kind of safe explosion venting device |
-
2009
- 2009-04-14 CN CN2009200394277U patent/CN201401538Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389672A (en) * | 2011-10-19 | 2012-03-28 | 无锡双雄通用机械有限公司 | Flame-proof anti-explosion anticorrosion bag type dust-removing device for drying brown coal |
| CN102389672B (en) * | 2011-10-19 | 2015-06-03 | 无锡双雄通用机械有限公司 | Flame-proof anti-explosion anticorrosion bag type dust-removing device for drying brown coal |
| CN102380265A (en) * | 2011-11-09 | 2012-03-21 | 江苏天宇石化冶金设备有限公司 | Explosion-proof explosion-release full-automatic bag-type filtering device for pulverized bituminous coal |
| CN102380265B (en) * | 2011-11-09 | 2014-03-12 | 江苏天宇石化冶金设备有限公司 | Explosion-proof explosion-release full-automatic bag-type filtering device for pulverized bituminous coal |
| CN103821978A (en) * | 2014-02-26 | 2014-05-28 | 南通原亚精密机械有限公司 | Explosion venting valve |
| CN108006286A (en) * | 2016-10-31 | 2018-05-08 | 张跃 | A kind of safe explosion venting device |
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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 |
Granted publication date: 20100210 |
|
| CX01 | Expiry of patent term |