CN2147875Y - Labyrinth sealed flame trap - Google Patents
Labyrinth sealed flame trap Download PDFInfo
- Publication number
- CN2147875Y CN2147875Y CN 92243852 CN92243852U CN2147875Y CN 2147875 Y CN2147875 Y CN 2147875Y CN 92243852 CN92243852 CN 92243852 CN 92243852 U CN92243852 U CN 92243852U CN 2147875 Y CN2147875 Y CN 2147875Y
- Authority
- CN
- China
- Prior art keywords
- plate
- dish
- hole
- bee
- pipe
- 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
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a labyrinth sealed fire retarding device. An outer case and a positioning ring in the outer case are connected with both-end flange plates and pipelines. An annular flow retarding pore plate, an annular porous flow discharge pore plate and a bee-hole fire retarding plate are respectively plugged in the positioning ring. A piston, a linkage spring and a sliding disc are arranged between the flow discharge pore plate and the bee-hole fire retarding plate. The labyrinth sealed fire retarding device adopts the buffering method, the labyrinth method, the linkage method and the sealed method to retard the fire. The labyrinth sealed fire retarding device overcomes the deficiencies that the metal net type fire retarding device of the pipeline has big flow resistance, and is easy to be blocked, the use period is short, the fire retarding performance is poor, etc. Therefore, the labyrinth sealed fire retarding device is used for the producing processes of the oilfield products and the chemical products.
Description
The utility model relates to a kind of labyrinth closed fire retardant device that is used for oil, Chemical Manufacture.
In oil, chemical products production process.Safety device on the inflammable and explosive medium pipeline uses tube metal net formula spark arrester for many years always, promptly adopts 30 order copper mesh or stainless (steel) wires, constitute fire aisle with the multilayer nethike embrane, the weak point that the spark arrester of this version exists is, the first, in petroleum refining and process, sulphur in the medium produces corrosion to pipeline, the sulfide that produces is flocked on the mesh with flowing of medium, has increased flow resistance, and has easily resulted in blockage, need often to clean, life cycle is short.The second, because being provided with, the metal mesh type spark arrester do not cut off the input media device, thereby its back-fire relief poor performance, the explosion arrestment weak strength.
Its purpose of the utility model just is to provide a kind of labyrinth closed spark arrester, to solve in oil, the Chemical Manufacture safety problem on the inflammable and explosive medium pipeline.
The technical scheme that realizes above-mentioned purpose and take is, pipe-like shell two ends mounting flange, two ring flanges and pipeline join, serve as a contrast along its length in the shell with centring ring, embed ring-type unhurried current orifice plate in the centring ring successively, ring-type porous earial drainage orifice plate and bee-hole fire-proof plate, the earial drainage orifice plate is a porous annular base plate intermediate connection tube shape piston sleeve, the bee-hole fire-proof plate is to connect the bee-hole pipe in the middle of the annular base plate, the interlock spring and the dish that moves about are housed between earial drainage orifice plate and the bee-hole fire-proof plate, interlock spring one end is contained in the piston sleeve of earial drainage orifice plate by piston, the other end links to each other with the dish that moves about, the dish that moves about is made of base plate and the sleeve pipe that is connected on the base plate, the dish that moves about is gone up casing pipe sleeve on the bee-hole pipe of honeybee fire fire-proof plate, the bee-hole tube wall has several through holes, these through holes are by the upward flexible realization closure or openness of sleeve pipe of dish that move about, and the center line of said structure is same center line.
Accompanying drawing is the structural representation of this device, and the utility model is described in further detail below in conjunction with accompanying drawing.
When normal pumped (conveying) medium, medium enters the enclosure space that the ring flange (2) at tube-like envelope (3) and interior centring ring (4) and two ends constitutes through pipeline (11), because bee-hole fire-proof plate (10), the gentle discharge orifice plate (5) of earial drainage orifice plate (6) is embedded in the centring ring (4), be fixed together with it, then under the pressure effect of pumped (conveying) medium, move about dish (9) to left movement, drive interlock spring (8) and piston (7) together to left movement, at this moment, move about sleeve pipe on the dish (9) also to left movement, make the through hole (B) on bee-hole fire-proof plate (10) the bee-hole pipe be opening, medium flows into immediately, and walk around the dish (9) that moves about, tangentially enter the straight-through bushing pipe on the earial drainage orifice plate (6),, walk around the buffering garden dish on the unhurried current orifice plate (5) again through unhurried current orifice plate (5) centre bore and the bushing pipe through hole (A) on it, enter output channel (1) at last, finish the normal conveying of medium.
When output had flame and detonation gas to contact this spark arrester, the mode that its back-fire relief is taked was buffering, labyrinth, interlock and sealing.
1, buffering, towards output ring flange one end bushing pipe is housed in unhurried current hole, orifice plate (5) garden, center, have several through holes (A) on the bushing pipe, the bushing pipe other end connects buffering garden dish, and the formation unhurried current orifice plate (5) that is fixed as one, and the buffering garden dish on unhurried current orifice plate (5) blocks, make it reduce flow velocity, change the flow direction, impulsive force has just been weakened by unhurried current orifice plate (5) like this in through hole on the lining of flowing through (A) and hole, garden, center.
2, labyrinth, on the porous annular base plate of earial drainage orifice plate (6), except that centre bore, respectively connect a straight-through bushing pipe in all the other some through holes, connection one of the bushing pipe other end and the corresponding porous ring flat-plate of base plate, and this pipper diameter constitutes a labyrinth greater than the center-hole diameter of base plate, impulsive force is further weakened in the labyrinth like this, and flows through through straight-through bushing pipe.
3, interlock, because the bottom intermediate connection tube shape piston sleeve of earial drainage orifice plate (6), in the piston sleeve is piston (7), interlock spring (8) other end on the piston (7) connects the dish (9) that moves about, effect lower piston (7) at pressure moves right, the bottom of dish (9) is the spill plate-like owing to move about, and here impulsive force further weakens again.
4, sealing, the dish (9) that moves about moves right under the drive of interlock spring (8), the sleeve pipe that moves about on the dish (9) also moves right thereupon, because this sleeve pipe is to be enclosed within on the bee-hole pipe of bee-hole fire-proof plate (10), like this, just make that the through hole (B) on the bee-hole pipe is closure state, cut off contacting of flame and detonation gas and pumped (conveying) medium, close the inflow of pumped (conveying) medium, finally stoped flame transmission and generation again.
Compared with prior art this dress has the following advantages,
1, because this device has been cancelled netted back-fire relief nethike embrane, and replace the through hole than major path, so just be difficult for resulting in blockage, and flow resistance is little, life cycle is long, does not need frequent cleaning, and is easy to use.
2, because this device back-fire relief has been taked the frame mode of buffering, labyrinth, interlock and sealing, can close the inflow of input media, thereby just strengthen back-fire relief antiknock ability.
Claims (4)
1, a kind of labyrinth closed spark arrester, pipe-like shell (3) two ends mounting flanges (2), two ring flanges and pipeline (1), (11) join, serve as a contrast along its length in the shell (3) with centring ring (4), it is characterized in that, embed ring-type unhurried current orifice plate (5) in the centring ring (4) successively, ring-type porous earial drainage (6) and bee-hole fire-proof plate (10), earial drainage orifice plate (6) is a porous annular base plate intermediate connection tube shape piston sleeve, bee-hole fire-proof plate (10) is to connect the bee-hole pipe in the middle of the annular base plate, the interlock spring (8) and the dish (9) that moves about are housed between earial drainage orifice plate (6) and the bee-hole fire-proof plate (10), interlock spring (8) one ends are contained in the piston sleeve of earial drainage orifice plate (6) by piston (7), the other end links to each other with the dish (9) that moves about, the dish (9) that moves about is made of base plate and the sleeve pipe that is connected on the base plate, move about casing pipe sleeve on the dish (9) on the bee-hole pipe of bee-hole fire-proof plate (10), the bee-hole tube wall has several through holes (B), these through holes are by the flexible realization closure or openness of the sleeve pipe on the dish (9) that moves about, and the center line of said structure is same center line.
2, labyrinth according to claim 1 closed spark arrester, it is characterized in that, towards proximal flange dish one end bushing pipe is housed in unhurried current hole, orifice plate (5) garden, center, bushing pipe has several through holes (A), the bushing pipe other end connects buffering garden dish, and buffering garden dish, bushing pipe and unhurried current orifice plate are fixed together.
3, labyrinth according to claim 1 closed spark arrester, it is characterized in that, on the porous annular base plate of earial drainage orifice plate (6), except that centre bore, respectively connect a straight-through bushing pipe in all the other some through holes, connection one of the bushing pipe other end and the corresponding porous ring flat-plate of base plate, and this pipper diameter is greater than the center-hole diameter of base plate.
4, labyrinth according to claim 1 closed spark arrester is characterized in that the base plate of the dish (9) that moves about is made recessed plate-like, and its external diameter is less than centring ring (4) internal diameter, greater than the cover external diameter of pipe on the dish (9) that moves about.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92243852 CN2147875Y (en) | 1992-12-04 | 1992-12-04 | Labyrinth sealed flame trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92243852 CN2147875Y (en) | 1992-12-04 | 1992-12-04 | Labyrinth sealed flame trap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2147875Y true CN2147875Y (en) | 1993-12-01 |
Family
ID=33783273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92243852 Expired - Fee Related CN2147875Y (en) | 1992-12-04 | 1992-12-04 | Labyrinth sealed flame trap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2147875Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101198380B (en) * | 2005-04-21 | 2012-10-24 | 尼麦西有限公司 | Detonation flame arrester |
| CN109937327A (en) * | 2016-10-28 | 2019-06-25 | 金子产业株式会社 | Speed reduction mechanism and flame arrester with speed reduction mechanism |
| CN111097118A (en) * | 2019-12-19 | 2020-05-05 | 山东双枭机电科技有限公司 | Flow dispersion type low-pressure-drop large-caliber flame arrester |
| US11168883B2 (en) | 2017-09-29 | 2021-11-09 | Rosemount Aerospace Inc. | Flame arrestor with fluid drainage capabilities |
| WO2021253828A1 (en) * | 2020-06-18 | 2021-12-23 | 中国石油化工股份有限公司 | Flame arrester |
-
1992
- 1992-12-04 CN CN 92243852 patent/CN2147875Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101198380B (en) * | 2005-04-21 | 2012-10-24 | 尼麦西有限公司 | Detonation flame arrester |
| CN109937327A (en) * | 2016-10-28 | 2019-06-25 | 金子产业株式会社 | Speed reduction mechanism and flame arrester with speed reduction mechanism |
| CN109952471A (en) * | 2016-10-28 | 2019-06-28 | 金子产业株式会社 | Speed reduction mechanism and flame arrester with speed reduction mechanism |
| CN110050158A (en) * | 2016-10-28 | 2019-07-23 | 金子产业株式会社 | Speed reduction mechanism and flame arrester with speed reduction mechanism |
| CN109952471B (en) * | 2016-10-28 | 2021-05-14 | 金子产业株式会社 | Speed reduction mechanism and flame arrester with speed reduction mechanism |
| US11168883B2 (en) | 2017-09-29 | 2021-11-09 | Rosemount Aerospace Inc. | Flame arrestor with fluid drainage capabilities |
| CN111097118A (en) * | 2019-12-19 | 2020-05-05 | 山东双枭机电科技有限公司 | Flow dispersion type low-pressure-drop large-caliber flame arrester |
| WO2021253828A1 (en) * | 2020-06-18 | 2021-12-23 | 中国石油化工股份有限公司 | Flame arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |