CN203240031U - Inverse arch rupture disc device with blades - Google Patents
Inverse arch rupture disc device with blades Download PDFInfo
- Publication number
- CN203240031U CN203240031U CN 201320244994 CN201320244994U CN203240031U CN 203240031 U CN203240031 U CN 203240031U CN 201320244994 CN201320244994 CN 201320244994 CN 201320244994 U CN201320244994 U CN 201320244994U CN 203240031 U CN203240031 U CN 203240031U
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- rupture disc
- disc device
- blades
- arch
- inverse
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Abstract
The utility model provides an inverse arch rupture disc device with blades, and relates to the rupture disc device which can automatically release pressure when overpressure exists in a pressure container. The inverse arch rupture disc device with the blades is suitable for medium and low pressure full vacuum gaseous state media with large diameters and pulsating pressure, and no fragment is produced in the blasting process. The inverse arch rupture disc device is provided with an upper holder, a lower holder, a membrane and a tool rest, wherein the membrane is arranged between the upper holder and the lower holder, the upper holder is fixed with the lower holder through a connecting piece and screws, and the tool rest is arranged inside the upper holder. The membrane can be in an inverse arch shape, the arch face of the inverse arch shape can be in a spherical cap shape. The tool rest can be in a herringbone shape, and the three blades with the same lengths and different heights are welded together at a 120-degree interval in the circumferential direction to form the herringbone shape. The inverse arch rupture disc device is good in opening effect, saves cost, and is suitable for rupture disc devices with DN more than 300.
Description
Technical field
The utility model relate to a kind of when Pressure-Container-Exceeding Pressure the automatic blasting piece device of release pressure, especially relating to can be at mesolow, have under the vacuum gaseous medium condition of fluctuation pressure, and bore can be opened when larger fully, without a kind of antiarch band cutter type blasting piece device of fragment.
Background technique
Without the blasting piece device of fragment operating mode, generally be to adopt Fig. 4, antiarch knife rest type blasting piece device shown in Figure 5 after in the prior art, being applicable to mesolow, the vacuum gaseous medium of fluctuation pressure is arranged and requiring explosion.Antiarch knife rest type blasting piece device is that the diaphragm antiarch is drawn into spherical arc, and places the cross knife rest in upper clamp holder.Blasting piece device is in when work, diaphragm arch face pressurized, and unstability upset when surpassing the pressure of setting, the cutter that is held in the device is cut brokenly, thereby plays the effect of pressure release, with protection equipment, can not produce fragment after the explosion.But the blasting piece device of this structure when bore is larger (such as DN300 and more than), open effect bad, the blade of cross knife rest is difficult to cut the rupture of membranes sheet, effectively relieving pressure.
Summary of the invention
The purpose of this utility model is to provide suitable heavy caliber, be used for mesolow, the vacuum gaseous medium of fluctuation pressure arranged, during explosion without a kind of antiarch band cutter type blasting piece device of fragment.
The utility model is provided with clamp holder, lower gripper, diaphragm, knife rest, and described diaphragm is located between clamp holder and the lower gripper and by connecting sheet and screw and is fixed together; Described knife rest is installed in the clamp holder.
Described diaphragm can be reverse arch, and it is spherical that the arch face of described reverse arch can be.
Described knife rest can be man type, and described man type is identical but do not wait highly that (one of them is 120 ° of sub-multiple angles than other two high 1～2mm) blade at circumferencial direction and welds together by 3 leaf length.
The utlity model has following advantage:
1. open effective.Existing antiarch knife rest type blasting piece device, employing be the cross knife rest, and the point of a knife of blade part is equally high in the central position.When the diaphragm unstability was overturn fast, what touch was that four blades are four edges like this, and area of contact is excessive, and therefore diaphragm is not easy to open fully in the heavy caliber situation, does not reach the purpose of quick pressure releasing.And the point of a knife that adopts " people " font knife rest, particularly blade in the central position different height so that the moment that begins most only has a blade cuts diaphragm, from the applicable cases of reality, diaphragm is easily opened on the contrary fully, has also improved the up-to-standard rate of product.
2. saving cost.Because " people " font knife rest that adopts only has 3 blades, and existing decussate texture is 4 blades.Reduced by 1 blade, thus the cost savings of blade 25%.
The utility model is suitable for the above blasting piece device of DN300.
Description of drawings
Fig. 1 is that the utility model embodiment's structure forms sectional view.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the fundamental diagram of Fig. 1.
In Fig. 1～3, respectively be labeled as: clamp holder on 1,2 lower grippers, 3 diaphragms, 4 knife rests, 5 connecting sheets, 6 screws.
Embodiment
Referring to Fig. 1～3, the utility model embodiment is provided with clamp holder 1, lower gripper 2, diaphragm 3, knife rest 4, and described diaphragm 3 is located between clamp holder 1 and the lower gripper 2 and by connecting sheet 5 and screw 6 and is fixed together; Described knife rest 4 is installed in the clamp holder 1.
Described diaphragm 3 can be reverse arch, and it is spherical that the arch face of described reverse arch can be.
Described knife rest 4 can be man type, and described man type is identical but do not wait highly that (one of them is 120 ° of sub-multiple angles than other two high 1～2mm) blade at circumferencial direction and welds together by 3 leaf length.
Below provide the utility model embodiment's working principle explanation:
Referring to Fig. 3, in use, the vault pressurized of diaphragm 3, when the medium directed force F surpasses design load, rapidly upset after diaphragm 3 unstabilitys, and the sharp blade of knife rest 4 can be cut the rupture of membranes sheet successively, so that diaphragm ruptures along the blade cutting edge place.Do not weaken groove because diaphragm itself is made, therefore can not come off, thereby guaranteed when opening fully, not produce again fragment.
Claims (5)
1. an antiarch band cutter type blasting piece device is characterized in that being provided with clamp holder, lower gripper, diaphragm, knife rest, and described diaphragm is located between clamp holder and the lower gripper and by connecting sheet and screw and is fixed together; Described knife rest is installed in the clamp holder.
2. a kind of antiarch band cutter type blasting piece device as claimed in claim 1 is characterized in that described diaphragm is reverse arch.
3. a kind of antiarch band cutter type blasting piece device as claimed in claim 2 is characterized in that the arch face of described reverse arch is spherical.
4. a kind of antiarch band cutter type blasting piece device as claimed in claim 1 is characterized in that described knife rest is man type.
5. a kind of antiarch band cutter type blasting piece device as claimed in claim 4 is characterized in that described man type is identical but blade that highly do not wait is 120 ° of sub-multiple angles at circumferencial direction welds together by 3 leaf length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320244994 CN203240031U (en) | 2013-05-08 | 2013-05-08 | Inverse arch rupture disc device with blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320244994 CN203240031U (en) | 2013-05-08 | 2013-05-08 | Inverse arch rupture disc device with blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203240031U true CN203240031U (en) | 2013-10-16 |
Family
ID=49317329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320244994 Expired - Lifetime CN203240031U (en) | 2013-05-08 | 2013-05-08 | Inverse arch rupture disc device with blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203240031U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455601A (en) * | 2014-12-10 | 2015-03-25 | 大连理工安全装备有限公司 | Ultralow-pressure safety pressure relief device with rupture disk |
| CN108291661A (en) * | 2015-11-06 | 2018-07-17 | 安赛科公司 | Blasting piece device and its assemble method |
| CN109812611A (en) * | 2017-11-19 | 2019-05-28 | 江门市安恒爆破工程有限公司 | A kind of anti-mounted location structure of rupture disk |
-
2013
- 2013-05-08 CN CN 201320244994 patent/CN203240031U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455601A (en) * | 2014-12-10 | 2015-03-25 | 大连理工安全装备有限公司 | Ultralow-pressure safety pressure relief device with rupture disk |
| CN108291661A (en) * | 2015-11-06 | 2018-07-17 | 安赛科公司 | Blasting piece device and its assemble method |
| CN108291661B (en) * | 2015-11-06 | 2020-06-05 | 安赛科公司 | Rupture disk device and assembling method thereof |
| CN109812611A (en) * | 2017-11-19 | 2019-05-28 | 江门市安恒爆破工程有限公司 | A kind of anti-mounted location structure of rupture disk |
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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: 20131016 |
|
| CX01 | Expiry of patent term |