CN210240694U - Positive arch piercing type rupture disk safety device - Google Patents
Positive arch piercing type rupture disk safety device Download PDFInfo
- Publication number
- CN210240694U CN210240694U CN201920734298.7U CN201920734298U CN210240694U CN 210240694 U CN210240694 U CN 210240694U CN 201920734298 U CN201920734298 U CN 201920734298U CN 210240694 U CN210240694 U CN 210240694U
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- China
- Prior art keywords
- rupture disk
- holder
- rupture
- safety device
- arch
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- 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.)
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- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000005422 blasting Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Abstract
The utility model relates to a positive arch piercing type rupture disk safety device, which comprises an upper clamp holder, a lower clamp holder, a rupture disk and a piercing assembly; the rupture disk is clamped between the upper holder and the lower holder, and the upper holder is provided with an elastic element, so that the upper holder can be elastically compressed in the vertical direction; the puncture assembly is arranged on the upper holder; a flow guide channel is arranged between the upper holder and the lower holder and is communicated with the outside; when the pressure born by the rupture disk is greater than a first threshold value and less than a second threshold value, the rupture disk vertically moves upwards, and pressure media are discharged from the flow guide channel; when the pressure born by the rupture disk is greater than a second threshold value, the upper holder moves vertically upwards and causes the rupture disk to be punctured by the puncture assembly. Compared with the prior art, the utility model discloses an elasticity passes through the component and realizes repeated compressing tightly, and used repeatedly has saved the cost of rupture disk replacement process manual work and spare part.
Description
Technical Field
The utility model belongs to the technical field of the safety attachment technique and specifically relates to a just encircle combination formula rupture disk safety device.
Background
The blasting sheet safety device comprises a regular arch type, a flat plate type, a reverse arch type and a graphite type, and is widely applied to the industries of petroleum, chemical engineering, energy, electric power, metallurgy, fire fighting, pharmacy, national defense and the like at present. The sealing surface form of the rupture disk is divided into a plane sealing mode and a conical surface sealing mode, and the conical surface sealing mode is suitable for occasions with higher pressure or higher sealing requirements. The normal arch rupture disk is a single-layer integral structure, has the characteristics of high strength and burst pressure and slightly poor fatigue resistance, and is suitable for occasions with medium-high pressure and small load fluctuation.
At present, most of the rupture disk safety devices of domestic pressure vessels need to be replaced immediately after blasting occurs, the cost is high, especially under the working condition of slight overpressure frequency, and the cost for replacing the rupture disk and the maintenance cost are high. Therefore, a novel rupture disk safety device which can release overpressure medium under the condition of slight overpressure, does not need to be replaced, and detonates a rupture disk under the condition of serious overpressure is urgently needed to be developed.
CN103090068B discloses a magnetic force type rupture disk safety device, which comprises a lower clamp assembly, an upper clamp assembly and a protection membrane fixed between the lower clamp assembly and the upper clamp assembly, and is characterized in that: the protective membrane is arranged between a concave table I of the lower holder and a convex table I of the upper holder, and the protective membrane is fixedly clamped between the upper holder component and the lower holder component through attractive magnetic force generated by the magnetic ring I and the magnetic ring II. According to the technical scheme, when the working pressure is smaller than the blasting pressure, the safety device of the rupture disk does not deform at all; when the working pressure reaches the bursting pressure, the sealing structure arranged on the lower clamp holder fails, the pressure area of the protective diaphragm is suddenly increased, and the hole-opening strength plate is quickly lifted up. Although the technical scheme can realize repeated replacement of the rupture disk, the pressure relief process in micro-overpressure cannot be realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a positive arch combined type rupture disk safety device for overcoming the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
a positive arch combined type rupture disk safety device comprises an upper clamp holder, a lower clamp holder, a rupture disk and a puncture assembly; the rupture disk is clamped between the upper holder and the lower holder, and the upper holder is provided with an elastic element, so that the upper holder can be elastically compressed in the vertical direction; the puncture assembly is arranged on the upper holder; a flow guide channel is arranged between the upper holder and the lower holder and is communicated with the outside; when the pressure born by the rupture disk is greater than a first threshold value and less than a second threshold value, the rupture disk vertically moves upwards, and pressure media are discharged from the flow guide channel; when the pressure born by the rupture disk is greater than a second threshold value, the upper holder moves vertically upwards and causes the rupture disk to be punctured by the puncture assembly.
Furthermore, the upper holder is nested in the lower holder, and the elastic element is arranged below the upper holder; when the pressure born by the rupture disk is smaller than a first threshold value, the elastic element is pressed against the peripheral edge of the rupture disk, so that the peripheral edge of the rupture disk and the lower holder form a sealing pair; when the pressure born by the rupture disk is greater than the first threshold value and less than the second threshold value, the peripheral edge of the rupture disk is separated from the lower holder, and the pressure medium is discharged from the flow guide channel; when the pressure born by the rupture disk is greater than the second threshold value, the peripheral edge of the rupture disk is separated from the lower holder, so that the rupture disk is punctured by the puncture assembly.
Further, the elastic element is a spring.
Further, the puncturing assembly is of a pyramid structure.
Furthermore, the elastic element is provided with a pressing ring below, and the pressing ring abuts against the periphery of the rupture disk.
Furthermore, the upper surface of the pressing ring is provided with a positioning groove, and the lower end of the elastic element is fixed in the positioning groove.
Furthermore, the rupture disk is a positive arch combined type rupture disk.
Further, the puncture assembly is detachably connected with the upper holder.
The utility model discloses when slight superpressure appears in pressure vessel, can release slight superpressure medium under the condition that the rupture disk appears blasting not, make medium pressure drop to safe pressure in the container, appear serious superpressure when the container internal pressure, the water conservancy diversion hole comes too late when releasing, and the rupture disk is punctured, releases the superpressure medium.
Compared with the prior art, the utility model has the advantages of it is following:
1) when serious overpressure does not occur, the rupture disk safety device does not explode, the rupture disk is repeatedly pressed through the spring and is repeatedly used, and the cost of labor and spare parts in the rupture disk replacement process is saved.
2) When serious overpressure occurs in the rupture disk safety device, the rupture disk is punctured by the puncturing element without spark generation, and is regularly torn along the puncturing opening without fragment generation.
3) The rupture disk and the holder are of an integral structure, so that the rupture disk cannot touch the arch surface of the rupture disk in the processes of transportation, packaging and installation, and the condition that the rupture disk fails in advance due to damage of the arch surface is avoided.
Drawings
FIG. 1 is a schematic structural view of a middle arch piercing rupture disk safety device of the present invention;
fig. 2 is a schematic structural view of the piercing state of the middle arch piercing type rupture disk safety device of the present invention.
In the figure: 1. the device comprises a lower clamp, 2, an upper clamp, 3, an elastic element, 4, a puncture assembly, 5, a rupture disk, 6, a flow guide channel, 7 and a pressure ring.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
The utility model discloses well positive arch type rupture disk safety device generally includes holder 2, lower holder 1, rupture disk 5 and piercing assembly 4, refers to fig. 1. The utility model discloses when slight superpressure appears in pressure vessel, can release slight superpressure medium under the condition that the rupture disk appears blasting not, make medium pressure drop to safe pressure in the container, appear serious superpressure when the container internal pressure, the water conservancy diversion hole comes too late when releasing, and the rupture disk is punctured, releases the superpressure medium.
A flow guide channel 6 is arranged between the upper holder 2 and the lower holder 1, and the flow guide channel 6 is communicated with the outside; the upper holder 2 is nested in the lower holder 1, and the elastic element 3 is arranged below the upper holder 2; elastic element 3 below be equipped with clamping ring 7, clamping ring 7 support and press in rupture disk 5 edge all around. The upper surface of the compression ring 7 is provided with a positioning groove, and the lower end of the elastic element 3 is fixed in the positioning groove. The rupture disk 5 is a positive arch combined type rupture disk. The puncture assembly 4 is detachably connected with the upper holder 2.
The blasting mechanism of the rupture disk 5: when the borne pressure is greater than a first threshold value and less than a second threshold value, the rupture disk 5 moves upwards vertically, and pressure media are discharged from the flow guide channel 6; when the pressure born by the rupture disk 5 is greater than the second threshold value, the upper clamp 2 moves vertically upwards and causes the rupture disk 5 to be ruptured by the rupture disk assembly 4. In specific implementation, when the pressure borne by the rupture disk 5 is smaller than the first threshold value, the elastic element 3 is pressed against the peripheral edge of the rupture disk 5, so that the peripheral edge of the rupture disk 5 and the lower holder 1 form a sealing pair, see fig. 1; when the pressure born by the rupture disk 5 is greater than a first threshold value and less than a second threshold value, the peripheral edge of the rupture disk 5 is separated from the lower holder 1, and the pressure medium is discharged from the flow guide channel 6; when the pressure born by the rupture disk 5 is greater than the second threshold value, the peripheral edge of the rupture disk 5 is separated from the lower holder 1, and the rupture disk 5 is punctured by the puncturing assembly 4, as shown in fig. 2.
The operation mechanism is as follows: referring to fig. 1 and 2, when slight overpressure occurs on the pressure source side, the elastic force of the spring is smaller than the pressure of the pressure source, the rupture disk moves upwards, and overpressure medium overflows through a flow guide port on the lower holder, so that the purpose of discharging the medium is achieved. When the pressure on the two sides of the rupture disk is balanced, the rupture disk returns to the original position. If the pressure of the pressure source side is not enough to be reduced after being discharged through the flow guide port and the pressure of the pressure source side continues to rise, the position of the rupture disk also continues to move upwards, the arch surface touches the tip of the quadrangular pyramid, the rupture disk is punctured and is simultaneously torn along four directions, and the rupture disk is exploded to achieve the purpose of discharging overpressure medium.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (8)
1. A positive arch rupture disk safety device is characterized by comprising an upper clamp holder (2), a lower clamp holder (1), a rupture disk (5) and a rupture component (4);
the rupture disk (5) is clamped between the upper holder (2) and the lower holder (1), and the upper holder (2) is provided with an elastic element (3) so that the upper holder (2) can be elastically compressed in the vertical direction;
the puncturing assembly (4) is arranged on the upper clamp holder (2);
a flow guide channel (6) is arranged between the upper holder (2) and the lower holder (1), and the flow guide channel (6) is communicated with the outside;
when the pressure born by the rupture disk (5) is greater than a first threshold value and less than a second threshold value, the rupture disk (5) vertically moves upwards, and pressure medium is discharged from the flow guide channel (6);
when the pressure born by the rupture disk (5) is greater than a second threshold value, the upper holder (2) moves vertically upwards and causes the rupture disk (5) to be punctured by the puncturing assembly (4).
2. A positive-arch piercing rupture disk safety device as claimed in claim 1, wherein the upper holder (2) is nested inside the lower holder (1), the resilient member (3) being disposed below the upper holder (2);
when the pressure born by the rupture disk (5) is smaller than a first threshold value, the elastic element (3) is pressed against the peripheral edge of the rupture disk (5), so that the peripheral edge of the rupture disk (5) and the lower holder (1) form a sealing pair;
when the pressure born by the rupture disk (5) is greater than a first threshold value and less than a second threshold value, the peripheral edges of the rupture disk (5) are separated from the lower holder (1), and the pressure medium is discharged from the flow guide channel (6);
when the pressure born by the rupture disk (5) is greater than a second threshold value, the peripheral edge of the rupture disk (5) is separated from the lower holder (1) and the rupture disk (5) is punctured by the puncturing assembly (4).
3. A positive-arch piercing rupture disc safety device as set forth in claim 1, wherein the resilient member (3) is a spring.
4. A positive-arch rupture disc safety device according to claim 1, wherein the rupture assembly (4) is of a pyramid configuration.
5. A positive-arch piercing rupture disc safety device according to claim 2, wherein a press ring (7) is provided below the elastic element (3), and the press ring (7) is pressed against the peripheral edge of the rupture disc (5).
6. A positive-arch piercing rupture disc safety device according to claim 5, wherein the compression ring (7) has a positioning groove on its upper surface, and the lower end of the elastic element (3) is fixed in the positioning groove.
7. A positive-arch piercing rupture disc safety device as set forth in claim 1, wherein the rupture disc (5) is a positive-arch normal type rupture disc.
8. A positive-arch rupture disc safety device according to claim 2, wherein the rupture assembly (4) is removably connected to the upper holder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920734298.7U CN210240694U (en) | 2019-05-21 | 2019-05-21 | Positive arch piercing type rupture disk safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920734298.7U CN210240694U (en) | 2019-05-21 | 2019-05-21 | Positive arch piercing type rupture disk safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240694U true CN210240694U (en) | 2020-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920734298.7U Expired - Fee Related CN210240694U (en) | 2019-05-21 | 2019-05-21 | Positive arch piercing type rupture disk safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210240694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114744361A (en) * | 2022-04-14 | 2022-07-12 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
-
2019
- 2019-05-21 CN CN201920734298.7U patent/CN210240694U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114744361A (en) * | 2022-04-14 | 2022-07-12 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
| CN114744361B (en) * | 2022-04-14 | 2024-04-19 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 |