CN101639157A - Inverted arch slit type bursting disc device - Google Patents
Inverted arch slit type bursting disc device Download PDFInfo
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- CN101639157A CN101639157A CN200810041191A CN200810041191A CN101639157A CN 101639157 A CN101639157 A CN 101639157A CN 200810041191 A CN200810041191 A CN 200810041191A CN 200810041191 A CN200810041191 A CN 200810041191A CN 101639157 A CN101639157 A CN 101639157A
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- film
- inverted arch
- disc device
- slit type
- bursting disc
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Abstract
The invention relates to an inverted arch slit type bursting disc device, which comprises a strength film and a sealing film, wherein the sealing film is arranged below the strength film; the periphery of the strength film close to a sealing face along the arch face outer ring is provided with shapes of ring teeth and a needle rod; and the needle rod part becomes an important bearing area and is in an unidirectional compressed state after the strength film is stressed. When load acted at both ends of the needle rod reaches a critical load, the needle rod is locally instable suddenly and is bent and deformed, the top of the needle rod is broken caused by stretching and shearing after the strength film is turned, and the sealing film is cut by the ring teeth of the strength film. Compared with the prior art, the device has the characteristics of high stability, large discharging area, wide bursting pressure range and the like under the condition of low pressure.
Description
Technical field
The present invention relates to rupture disk, be specifically related to a kind of inverted arch slit type bursting disc device.
Background technique
Blasting piece device is by pressure differential, non-automatic urgent pressure relief device of closing, and is mainly used in protection pressurized container, pipeline or other closed system, and it is avoided because of excessively superpressure or vacuum cause destroying.Blasting piece device be widely used in now industries such as chemical industry, medicine, environmental protection, iron and steel, electric power need protection ground equipment in.
At present, the blasting piece device of domestic production, the bursting pressure of counter-arch shaped blasting piece can reach 0.1Mpa, its structure as shown in Figure 1 and Figure 2, the intensity film 1 one side settings side 2 of releasing, nameplate 3 is set on the side of releasing 2, and when the minimum bursting pressure of needs was lower than 0.1Mpa, existing traditional counter-arch shaped blasting piece was difficult to satisfy.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of under the very low situation of pressure for the defective that overcomes above-mentioned prior art existence, still has very high stability, and discharge area is big, the inverted arch slit type bursting disc device that the bursting pressure scope is wide.
Purpose of the present invention can be achieved through the following technical solutions: a kind of inverted arch slit type bursting disc device, this device comprises the intensity film, it is characterized in that, also comprise sealing film, the sealing film is arranged under the intensity film, arch face outer ring, intensity film upper edge is near the shape that is split into ring tooth and shank on the circumference of sealing surface, behind the intensity film pressurized, the shank position becomes main supporting region, and be in unidirectional compressed state, local buckling taking place suddenly when the load that acts on the shank two ends reaches its ultimate load and be bending deflection, ruptures because of stretching and shearing in shank top, intensity film upset back, and sealing film is cut by the ring tooth of intensity film.
Described intensity film is a pressure-sensing device.
Described shank is crisscross arranged in intensity film periphery with the ring tooth, and the ring tooth plays the effect that causes brokenly element.
When sealing, transmits described sealing film pressure.
The material of described sealing film is a resistant material.
The sealing film one side setting side of releasing is provided with nameplate on the side of releasing.
Described ultimate load is an intensity film buckling pressure.
Compared with prior art, the present invention except have the antiarch rupture disk total be a little antifatigue, do not have the fragment in the time of bearing back pressure, explosion, also have following outstanding advantage: the receptance for mounting torque is lower; Need not to be equipped with knife rest, crocodile tooth etc. and cause brokenly element; Under the very low situation of pressure, still has very high stability; Discharge area is big; The bursting pressure scope is wide; The sealing film material can adopt different resistant materials, and not only medium is applied widely, and can save corrosion-resistant material.
Description of drawings
Fig. 1 is the structural representation of existing blasting piece device:
Fig. 2 is the plan view of Fig. 1:
Fig. 3 is a structural representation of the present invention:
Fig. 4 is the plan view of Fig. 3:
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Embodiment 1
Shown in Fig. 3～4, a kind of inverted arch slit type bursting disc device, this device mainly is made up of intensity film 1 and sealing film 4, sealing film 4 is arranged on the intensity film 1 time, intensity film 1 is a pressure-sensing device, arch face outer ring, intensity film 1 upper edge is near the shape that is split into ring tooth 5 and shank 6 on the circumference of sealing surface, and shank 6 is crisscross arranged in intensity film 1 periphery with ring tooth 5, and ring tooth 5 plays the effect that causes brokenly element.Behind intensity film 1 pressurized, shank 6 positions become main supporting region, and be in unidirectional compressed state, when the load that acts on shank 6 two ends reaches its ultimate load and is intensity film buckling pressure, local buckling taking place suddenly and be bending deflection, ruptures because of stretching and shearing in shank top, intensity film upset back, and sealing film 4 is cut by the ring tooth 5 of intensity film 1, transmit pressure in the time of sealing film 4 sealings, the material of sealing film 4 can adopt different resistant materials.
The sealing film 4 one side settings side 2 of releasing can be provided with nameplate 3 on the side of releasing 2.
Claims (7)
1. inverted arch slit type bursting disc device, this device comprises the intensity film, it is characterized in that, also comprise sealing film, the sealing film is arranged under the intensity film, arch face outer ring, intensity film upper edge is near the shape that is split into ring tooth and shank on the circumference of sealing surface, behind the intensity film pressurized, the shank position becomes main supporting region, and be in unidirectional compressed state, local buckling taking place suddenly when the load that acts on the shank two ends reaches its ultimate load and be bending deflection, ruptures because of stretching and shearing in shank top, intensity film upset back, and sealing film is cut by the ring tooth of intensity film.
2. a kind of inverted arch slit type bursting disc device according to claim 1 is characterized in that, described intensity film is a pressure-sensing device.
3. a kind of inverted arch slit type bursting disc device according to claim 1 is characterized in that, described shank is crisscross arranged in intensity film periphery with the ring tooth, and the ring tooth plays the effect that causes brokenly element.
4. a kind of inverted arch slit type bursting disc device according to claim 1 is characterized in that, transmits pressure when described sealing film seals.
5. a kind of inverted arch slit type bursting disc device according to claim 1 is characterized in that, the material of described sealing film is a resistant material.
6. a kind of inverted arch slit type bursting disc device according to claim 1 is characterized in that, the described sealing film one side setting side of releasing is provided with nameplate on the side of releasing.
7. a kind of inverted arch slit type bursting disc device according to claim 1 is characterized in that, described ultimate load is an intensity film buckling pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041191A CN101639157A (en) | 2008-07-30 | 2008-07-30 | Inverted arch slit type bursting disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041191A CN101639157A (en) | 2008-07-30 | 2008-07-30 | Inverted arch slit type bursting disc device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101639157A true CN101639157A (en) | 2010-02-03 |
Family
ID=41614272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810041191A Pending CN101639157A (en) | 2008-07-30 | 2008-07-30 | Inverted arch slit type bursting disc device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101639157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606777A (en) * | 2012-03-26 | 2012-07-25 | 大连理工安全装备有限公司 | Composite type anti-arch slotted rupture disk |
-
2008
- 2008-07-30 CN CN200810041191A patent/CN101639157A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606777A (en) * | 2012-03-26 | 2012-07-25 | 大连理工安全装备有限公司 | Composite type anti-arch slotted rupture disk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100203 |