CN205047916U - Pressure release protection device with buffer function - Google Patents
Pressure release protection device with buffer function Download PDFInfo
- Publication number
- CN205047916U CN205047916U CN201520762100.8U CN201520762100U CN205047916U CN 205047916 U CN205047916 U CN 205047916U CN 201520762100 U CN201520762100 U CN 201520762100U CN 205047916 U CN205047916 U CN 205047916U
- Authority
- CN
- China
- Prior art keywords
- buffer stopper
- cutting member
- protection device
- pressure release
- groove
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000010008 shearing Methods 0.000 claims abstract description 12
- 230000006837 decompression Effects 0.000 claims description 16
- 238000011176 pooling Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a pressure release protection device with buffer function, including barrel, end cap, shearing piece, O shape sealing washer, buffer block, the sealed pad and the 2nd O shape sealing washer, the buffer block is installed in the step hole of barrel department and will be sealed up to fill up and compresses tightly, and a groove that has the installation to shear is opened to the buffer block upper end, and the lower extreme is opened there is the air vent, shears an upper end and opens and have the shearing groove, and end cap and barrel fastening connection will be sheared and compress tightly on the buffer block end cap upper end equipartition pressure release hole. When gas pressure in the barrel risees rapidly, on the gas flow is used in behind the buffer block again and shears, shearing and splitting shearing the groove deal with, shear a journal stirrup and compressed tightly on the buffer block by the end cap, shear all the other parts and move to the locking of end cap tank bottom down in the gas effect, gas discharges outside the container through the pressure release hole. The utility model discloses small, light in weight, simple structure, the pressure release uniformity is good, can be used to ultra -temperature, superhigh pressure environment, and its pressure release precision can be controlled within 10%.
Description
Technical field
The utility model relates to a kind of decompression protection device with pooling feature, belongs to superhigh temperature, extra-high acting technical field.
Background technique
In a lot of gunpowder ultrahigh pressure acting environment, be all continue tonifying Qi by internal system powder burning, make up the pressure drop that acting process is brought, make pressure maintain a metastable interval, keep the ability that it does work.Once acting process because the factors such as unexpected clamping stagnation are obstructed, gunpowder can not stop burning, namely tonifying Qi can not stop because acting process is obstructed, this situation will cause pressure in system to raise rapidly, bring cylindrical shell explosion hidden danger, above-mentioned situation is equal ubiquity in firer's actuator and a lot of ultrahigh pressure Environmental Conditions, for improving the margin of safety of system, is necessary to use pressure-relief valve structure.
Conventional pressure relief valve uses usually under the environment of (15 ~ 35) DEG C, the upper limit of proof pressure is generally no more than 30MPa, general use ball-cone cooperating structure realizes sealing, and possess the ability or other feedback output functions that repeatedly open and close, size is generally larger.Limit conventional pressure relief valve and have following 3 points in the reason of extra-high acting field use: 1) ultra-high pressure apparatus relative size is less, and traditional valve size is comparatively large, supporting inharmonious; 2) traditional valve only can use under normal temperature condition, and under high temperature condition, service behaviour is unstable, and pressure release scattered error is excessive, and reliability is lower; 3) the use upper pressure limit of traditional valve is generally no more than 30MPa, cannot meet the pressure releasing requirement of high-pressure installation.
The characteristic of the supper-fast aerogenesis of powder burning can cause decompression protection device to bear gas impact, increases buffer structure, effectively can reduce impact, improve pressure release conformity in decompression protection device.For this reason, be necessary to provide a kind of improvement pressure-relief valve structure with pooling feature, for powder burning container, improve safety in utilization.
Model utility content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art; the utility model provides a kind of decompression protection device with pooling feature; this device can be used for superhigh temperature, ultra-high voltage environment; 2000 DEG C can be reached by the instantaneous high-temperature of sealing gas; in the scope of 50MPa to 300MPa, its pressure release precision can control within ± 10%, and volume is little, lightweight; and structure is simple, pressure release high conformity.
Technical solution of the present utility model is:
A kind of decompression protection device with pooling feature, comprise cylindrical shell, plug, cutting member, first O-ring seals, buffer stopper, sealing gasket and the second O-ring seals, cylindrical shell for carrying high temperature and high pressure gas has step hole, the step of cylindrical shell is provided with sealing gasket, buffer stopper is arranged on the step hole place of cylindrical shell and is compressed by sealing gasket, buffer stopper lower end is provided with the first O-ring seals, buffer stopper upper end has the groove installing cutting member, lower end has vent, cutting member is arranged in the groove of buffer stopper upper end, cutting member and buffer stopper are sealed by the second O-ring seals, cutting member top has cut groove, plug and cylindrical shell are fastenedly connected and are pressed on buffer stopper by cutting member, the uniform relief hole in plug upper end.
A kind ofly have in the decompression protection device of pooling feature above-mentioned, plug outer wall is provided with the thread section coordinated with cylindrical shell.
A kind ofly have in the decompression protection device of pooling feature above-mentioned, cutting member is by shearing body and two journal stirrups form, and each journal stirrup all has cut groove, and the centre distance of two cut grooves is greater than the diameter shearing body.
A kind ofly have in the decompression protection device of pooling feature above-mentioned, the shape of cut groove is arc or triangle.
A kind ofly have in the decompression protection device of pooling feature above-mentioned, the diameter of buffer stopper vent is less than the diameter of relief hole, and the length of buffer stopper vent is not less than 5mm.
The utility model beneficial effect is compared with prior art:
1, the utility model can be used for hyperthermal environments, ultra-high voltage environment, and peak value uses pressure more than 300MPa, can to increase temperature in wink and can reach 2000 DEG C, is far longer than the Environmental Conditions of traditional valve, has filled up the blank in superhigh temperature, extra-high acting field.
2, the utility model cutting member top has cut groove, and cutout is cut off in precalculated position, cuts off rear journal stirrup and continues compacted, do not affect the working environment of relief hole, ensure that pressure release conformity, in the scope of 50MPa to 300MPa, its pressure release precision can control within ± 10%.
3, the utility model takes series of measures raising pressure release conformity, buffer stopper is devised for high speed aerogenesis situations such as powder burning aerogenesis, buffer stopper upper end has the groove installing cutout, lower end has vent, middle formation buffer cavity, effectively can reduce combustion gas transient impact to the impact of shearing sheet shear behavior, improve device shock resistance.
4, the utility model structure is simple, volume is little, lightweight, application area is wide.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model
Fig. 2 a is the plan view of cutting member of the present utility model
Fig. 2 b is the axial sectional view of cutting member of the present utility model
Fig. 3 a is the axial sectional view of plug of the present utility model
Fig. 3 b is the direction view of plug of the present utility model
Fig. 4 is the axial sectional view of buffer stopper of the present utility model
Wherein: 1 cylindrical shell, 2 plugs, 3 cutting members, 4 first O-ring seals, 5 buffer stoppers, 6 high temperature and high pressure gas, 7 sealing gaskets, 8 second O-ring seals, 21 inner chambers, 22 opening ends, 23 closed ends, 24 relief holes, 25 thread sections, 31 shear body, 32 journal stirrups.
Embodiment
Illustrate below in conjunction with accompanying drawing and with specific embodiment, the utility model to be further described:
As shown in Figure 1, a kind of decompression protection device with pooling feature, comprise cylindrical shell 1, plug 2, cutting member 3, first O-ring seals 4, buffer stopper 5, sealing gasket 7 and the second O-ring seals 8, cylindrical shell 1 for carrying high temperature and high pressure gas 6 has step hole, the step of cylindrical shell 1 is provided with sealing gasket 7, buffer stopper 5 is arranged on the step hole place of cylindrical shell 1 and is compressed by sealing gasket 7, buffer stopper 5 lower end is provided with the first O-ring seals 4, buffer stopper 5 upper end has the groove installing cutting member 3, lower end has vent, cutting member 3 is arranged in the groove of buffer stopper 5 upper end, cutting member 3 and buffer stopper 5 are sealed by the second O-ring seals 8, cutting member 3 top has cut groove, plug 2 and cylindrical shell 1 are fastenedly connected and are pressed on buffer stopper 5 by cutting member 3, the uniform relief hole 24 in plug 2 upper end.
As shown in figures 2 a and 2b, cutting member 3 is made up of shearing body 31 and two journal stirrups 32, two journal stirrup 32 self cleavage bodies 31 radially symmetrical extension form, shearing body 31 with the height ratio of journal stirrup 32 is 7.2:2, each journal stirrup 32 all has cut groove, and the ratio of cut groove groove depth and journal stirrup 32 height is 1:2, thus ensures that pure shear fracture occurs cutting member 3, the centre distance of two cut grooves is greater than the diameter shearing body 31, and the shape of cut groove is arc.
As best shown in figures 3 a and 3b, plug 2 outer wall is provided with the thread section 25 coordinated with cylindrical shell 1, plug 2 has stepped shape groove, and groove width ratio is 13:11.
As shown in Figure 4, the diameter D4 of buffer stopper 5 vent is less than the diameter of relief hole 24, and D4 is set to 1.8mm, and the groove width of buffer stopper 5 upper end is set to 8mm, and the hole depth of buffer stopper 5 vent and the groove depth ratio of upper end are 6:10.2.
Working principle of the present utility model is:
When container internal air pressure raises too fast generation impact, high temperature and high pressure gas 6 is used on cutting member 3 by remaking after the vent buffering of buffer stopper 5, reduces the impact impacted cutting member 3 material property, improves the pressure release conformity of device.When the pressure of the high temperature and high pressure gas 6 in container brings up to Safety Pre definite value, cutting member 3 ruptures from the cut groove at top, the journal stirrup 32 of fracture is fixed by plug 3, cutting member 3 remaining part at the move under influence of high temperature and high pressure gas 6 to the stop of plug 2 bottom land, now expose the relief hole 24 of plug 2, high temperature and high pressure gas 6 is discharged into outside cylindrical shell 1 by relief hole 24, realizes high temperature and high pressure gas 6 drainage function, anti-locking apparatus generation cylindrical shell 1 burst failure.
The content do not described in detail in the utility model specification is known to the skilled person technology.
Claims (5)
1. one kind has the decompression protection device of pooling feature, it is characterized in that: comprise cylindrical shell (1), plug (2), cutting member (3), first O-ring seals (4), buffer stopper (5), sealing gasket (7) and the second O-ring seals (8), cylindrical shell (1) for carrying high temperature and high pressure gas (6) has step hole, the step of cylindrical shell (1) is provided with sealing gasket (7), buffer stopper (5) is arranged on the step hole place of cylindrical shell (1) and is compressed by sealing gasket (7), buffer stopper (5) lower end is provided with the first O-ring seals (4), buffer stopper (5) upper end has the groove installing cutting member (3), lower end has vent, cutting member (3) is arranged in the groove of buffer stopper (5) upper end, cutting member (3) and buffer stopper (5) are sealed by the second O-ring seals (8), cutting member (3) top has cut groove, plug (2) and cylindrical shell (1) are fastenedly connected and are pressed on buffer stopper (5) by cutting member (3), the uniform relief hole in plug (2) upper end (24).
2. a kind of decompression protection device with pooling feature according to claim 1, is characterized in that: described plug (2) outer wall is provided with the thread section (25) coordinated with cylindrical shell (1).
3. a kind of decompression protection device with pooling feature according to claim 1; it is characterized in that: described cutting member (3) is made up of shearing body (31) and two journal stirrups (32); (32) all have cut groove to each journal stirrup, and the centre distance of two cut grooves is greater than the diameter shearing body (31).
4. a kind of decompression protection device with pooling feature according to claim 1 or 3, is characterized in that: the shape of described cut groove is arc or triangle.
5. a kind of decompression protection device with pooling feature according to claim 1; it is characterized in that: the diameter of described buffer stopper (5) vent is less than the diameter of relief hole (24), and the length of buffer stopper (5) vent is not less than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762100.8U CN205047916U (en) | 2015-09-29 | 2015-09-29 | Pressure release protection device with buffer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762100.8U CN205047916U (en) | 2015-09-29 | 2015-09-29 | Pressure release protection device with buffer function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047916U true CN205047916U (en) | 2016-02-24 |
Family
ID=55341493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520762100.8U Expired - Fee Related CN205047916U (en) | 2015-09-29 | 2015-09-29 | Pressure release protection device with buffer function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704654A (en) * | 2016-12-28 | 2017-05-24 | 中国电子科技集团公司第十八研究所 | Safety valve |
| RU183416U1 (en) * | 2018-07-09 | 2018-09-21 | Акционерное общество "Военно-промышленная корпорация "Научно-производственное объединение машиностроения" | STARTING PNEUMATIC VALVE |
-
2015
- 2015-09-29 CN CN201520762100.8U patent/CN205047916U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704654A (en) * | 2016-12-28 | 2017-05-24 | 中国电子科技集团公司第十八研究所 | Safety valve |
| CN106704654B (en) * | 2016-12-28 | 2019-01-29 | 中国电子科技集团公司第十八研究所 | A kind of safety valve |
| RU183416U1 (en) * | 2018-07-09 | 2018-09-21 | Акционерное общество "Военно-промышленная корпорация "Научно-производственное объединение машиностроения" | STARTING PNEUMATIC VALVE |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 646605 mail box fourth, Luzhou, Sichuan Patentee after: SICHUAN AEROSPACE CHUANAN FIRE TECHNOLOGY CO.,LTD. Address before: 646605 mail box fourth, Luzhou, Sichuan Patentee before: CHUANNAN MACHINERY WORKS OF CASC |
|
| 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: 20160224 |