CN203784389U - Explosion isolating valve - Google Patents
Explosion isolating valve Download PDFInfo
- Publication number
- CN203784389U CN203784389U CN201420195296.2U CN201420195296U CN203784389U CN 203784389 U CN203784389 U CN 203784389U CN 201420195296 U CN201420195296 U CN 201420195296U CN 203784389 U CN203784389 U CN 203784389U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- explosion
- valve body
- gas inlet
- 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
Links
- 238000004880 explosion Methods 0.000 title abstract description 17
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 3
- 238000005474 detonation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Sliding Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses an explosion isolating valve which comprises a valve body, wherein an air inlet and an air outlet are formed in the valve body; an inclined valve plate is arranged in the valve body; the upper end of the valve plate is fixed on a rotating shaft; the lower end of the valve plate is arranged in an air inlet pipe forming the air inlet and used for closing and opening the air inlet pipe; the included angle between the valve plate and the air inlet direction of the air inlet pipe is an acute angle; the rotating shaft can be rotationally fixed in the valve body; and a one-way rotating damper used for slowly opening the valve plate is further arranged on the rotating shaft. The explosion isolating valve can prevent explosion from diffusing to other technological units from the initial position, so that secondary explosion or a system explosion accident is avoided, and the explosion disaster is reduced; and with the adoption of the explosion isolating valve, the explosion can be isolated, the explosion diffusion is prevented, and compared with other isolating equipment, the explosion isolating valve is more economical.
Description
Technical field
The utility model relates to a kind of blast separating valve.
Background technique
Along with the development of modern industry, the potentially danger of dust explosion increases greatly.In actual production, when deduster is blasted, blast can be along pipe transmmision to the equipment being connected with deduster or other equipment of factory.If detonation propagation is to factory, blast will develop with very fast speed, and can produce very high explosion pressure, can cause destructive destruction to factory and personnel.Although the integrity that can protect deduster through the bursting diaphragm of correct design and certification is installed on deduster; if but connected pipeline is not carried out isolation; while blasting, flame still can be transferred to other associated devices by the pipeline that is connected with pressure wave, causes the generation of the even larger power blast of secondary.
Summary of the invention
In order to overcome above-mentioned defect, the utility model provides a kind of blast separating valve, can propagate to other technique units from initial position by prevent exploding, avoids the generation of " secondary " blast or system explosive accident, thereby alleviates explosion disaster.Adopt blast separating valve will isolate blast, the propagation of prevent exploding, with respect to other xegregating units, both economical.
The utility model for the technological scheme that solves its technical problem and adopt is: a kind of blast separating valve, comprise valve body, this valve body is provided with wind inlet and exhaust outlet, in described valve body, be provided with the valve plate of an inclination, this valve plate upper end is fixed on a running shaft, this valve plate lower end is placed in and forms in the Gas inlet tube of described wind inlet for sealing and open this Gas inlet tube, and the angle of described valve plate and described Gas inlet tube air intake direction is acute angle; Described running shaft can rotate and be fixed in described valve body, is also provided with a single direction rotation damper for described valve plate is slowly opened on this running shaft.
As preferred version of the present utility model, in described valve body, be also provided with the limiting stopper of opening described Gas inlet tube state maximum position for limiting described valve plate.
As preferred version of the present utility model, on described valve body, also offer access door and be communicated with described valve plate and Gas inlet tube, described limiting stopper is arranged on this access door.
As preferred version of the present utility model, described running shaft is rotated and is fixed on described valve body by bearing.
As preferred version of the present utility model, described valve body is fixed on integrated bracket.
As preferred version of the present utility model, described valve plate is that aluminum alloy material is made.
The beneficial effects of the utility model are: this blast separating valve is applied in the occasion that ducted dust concentration is greater than the minimum explosion ratio limit.On blast separating valve, be provided with access door, for checking easily the sealing of valve plate and Gas inlet tube.Limiting stopper is set on access door, prevents in running, valve plate swings back and forth because the fluctuations in wind speed in pipeline causes.Single direction rotation damper is set on running shaft, avoids blast that rear valve plate occurs and open rapidly.The support of one makes its installation simple and easy, easy to maintenance.Do not comprise and start sensory package, economical and practical passive explosion protection system.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
By reference to the accompanying drawings, make the following instructions:
1---valve body 2---valve plate
3---access door 4---limiting stopper
5---running shaft 6---bearing
7---single direction rotation damper 8---wind inlet
9---exhaust outlet 10---Gas inlet tube
11---support
Embodiment
Below in conjunction with accompanying drawing, a preferred embodiment of the present utility model is elaborated.But protection domain of the present utility model is not limited to following embodiment, the simple equivalence of in every case being done with the utility model claim and description changes and modifies, within all still belonging to the utility model patent covering scope.
As shown in Figure 1, a kind of blast separating valve, formed by valve body 1, valve plate 2, access door 3, limiting stopper 4, running shaft 5, bearing 6, single direction rotation damper 7, wind inlet 8, exhaust outlet 9, Gas inlet tube 10, support 11, described valve body 1 is provided with wind inlet 8 and exhaust outlet 9, the wind inlet 8 of valve body is connected with external pipe, and valve body 1 inside is provided with valve plate 2 and limiting stopper 4.Valve plate upper end is fixed on running shaft 5, and it is interior for opening and be encapsulated into airduct that valve plate lower end is skewed and is placed in Gas inlet tube, and valve plate and Gas inlet tube air intake angular separation are acute angle.Running shaft 5 is fixing by bearing 6, connects single direction rotation damper 7 on the top of running shaft 5, and for the resistance that provides valve plate to open Gas inlet tube, integrated bracket 11 is connected with valve body 1.Valve plate adopts aluminum alloy material to make, or other not ignitable materials, prevents travel of flame.
In the time that gas or dust flow through pipeline, valve plate 2 is slowly opened under the effect of stream pressure and single direction rotation damper; In the time that blower fan or system stop, valve plate 2 is automatically closed with Gas inlet tube 10 and is sealed; In the time that rear end equipment is blasted, due to explosion pressure ripple, the flow velocity in conveyance conduit declines, and valve plate 2 is automatically closed under Gravitative Loads, has isolated pipeline.The pressure wave that blast produces can make valve plate close on seal face, thereby prevention detonation propagation is to upstream line and equipment, plays the effect of isolation, and the setting of single direction rotation damper simultaneously can be avoided blast that rear valve plate occurs and open rapidly.
Claims (6)
1. a blast separating valve, comprise valve body (1), this valve body is provided with wind inlet (8) and exhaust outlet (9), it is characterized in that: the valve plate (2) that is provided with an inclination in described valve body, this valve plate upper end is fixed on a running shaft (5), this valve plate lower end is placed in and forms in the Gas inlet tube (10) of described wind inlet for sealing and open this Gas inlet tube, and the angle of described valve plate and described Gas inlet tube air intake direction is acute angle; Described running shaft can rotate and be fixed in described valve body, is also provided with a single direction rotation damper (7) for described valve plate is slowly opened on this running shaft.
2. blast separating valve according to claim 1, is characterized in that: in described valve body, be also provided with the limiting stopper (4) of opening described Gas inlet tube state maximum position for limiting described valve plate.
3. blast separating valve according to claim 2, is characterized in that: on described valve body, also offer access door (3) and be communicated with described valve plate and Gas inlet tube, described limiting stopper is arranged on this access door.
4. according to the blast separating valve described in any one in claims 1 to 3, it is characterized in that: described running shaft is rotated and is fixed on described valve body by bearing (6).
5. according to the blast separating valve described in any one in claims 1 to 3, it is characterized in that: described valve body is fixed on integrated bracket (11).
6. according to the blast separating valve described in any one in claims 1 to 3, it is characterized in that: described valve plate is that aluminum alloy material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195296.2U CN203784389U (en) | 2014-04-21 | 2014-04-21 | Explosion isolating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195296.2U CN203784389U (en) | 2014-04-21 | 2014-04-21 | Explosion isolating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784389U true CN203784389U (en) | 2014-08-20 |
Family
ID=51320577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420195296.2U Expired - Lifetime CN203784389U (en) | 2014-04-21 | 2014-04-21 | Explosion isolating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784389U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195379A (en) * | 2016-09-13 | 2016-12-07 | 江苏省安全生产科学研究院 | The passive quick automatic cut-off valve of induced shockwaves |
| CN106481854A (en) * | 2016-12-27 | 2017-03-08 | 闫正伟 | A kind of dust back pressure flame proof valve |
| CN106838405A (en) * | 2017-03-17 | 2017-06-13 | 江苏爵格工业设备有限公司 | A kind of unidirectional flame proof valve open in usual |
| CN106885026A (en) * | 2017-03-17 | 2017-06-23 | 江苏爵格工业设备有限公司 | A kind of unidirectional flame proof valve of normally closed type |
| CN107076321A (en) * | 2014-11-14 | 2017-08-18 | 尼的曼控股公司 | Back pressure valve clack device and application thereof |
| CN107061822A (en) * | 2017-01-10 | 2017-08-18 | 广东省安全生产技术中心（广东省安全生产宣传教育中心） | A kind of flame proof valve for explosive dust atmosphere |
| CN111050860A (en) * | 2017-05-19 | 2020-04-21 | Bs&B创新有限公司 | Explosion baffle valve |
-
2014
- 2014-04-21 CN CN201420195296.2U patent/CN203784389U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076321A (en) * | 2014-11-14 | 2017-08-18 | 尼的曼控股公司 | Back pressure valve clack device and application thereof |
| CN107076321B (en) * | 2014-11-14 | 2019-02-01 | 尼的曼控股公司 | Back pressure valve clack device and application thereof |
| US10480666B2 (en) | 2014-11-14 | 2019-11-19 | Nederman Holding Ab | Back pressure flap valve arrangement and the use thereof |
| CN106195379A (en) * | 2016-09-13 | 2016-12-07 | 江苏省安全生产科学研究院 | The passive quick automatic cut-off valve of induced shockwaves |
| CN106195379B (en) * | 2016-09-13 | 2019-03-19 | 江苏省安全生产科学研究院 | The passive quick automatic cut-off valve of induced shockwaves |
| CN106481854A (en) * | 2016-12-27 | 2017-03-08 | 闫正伟 | A kind of dust back pressure flame proof valve |
| CN107061822A (en) * | 2017-01-10 | 2017-08-18 | 广东省安全生产技术中心（广东省安全生产宣传教育中心） | A kind of flame proof valve for explosive dust atmosphere |
| CN106838405A (en) * | 2017-03-17 | 2017-06-13 | 江苏爵格工业设备有限公司 | A kind of unidirectional flame proof valve open in usual |
| CN106885026A (en) * | 2017-03-17 | 2017-06-23 | 江苏爵格工业设备有限公司 | A kind of unidirectional flame proof valve of normally closed type |
| CN111050860A (en) * | 2017-05-19 | 2020-04-21 | Bs&B创新有限公司 | Explosion baffle 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: 20140820 |