CN102506205A - Wet-type self-resetting fire-retarding blow off valve - Google Patents
Wet-type self-resetting fire-retarding blow off valve Download PDFInfo
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- CN102506205A CN102506205A CN2011103467981A CN201110346798A CN102506205A CN 102506205 A CN102506205 A CN 102506205A CN 2011103467981 A CN2011103467981 A CN 2011103467981A CN 201110346798 A CN201110346798 A CN 201110346798A CN 102506205 A CN102506205 A CN 102506205A
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Abstract
The invention discloses a wet-type self-resetting fire-retarding blow off valve, which can be used for conveying a low-pressure combustible gas medium and safely blowing off. A water seal tank (5) is connected with a water pressure difference tank (7); an overflow water tank (8) is arranged at the outlet of the water pressure difference tank (7); when pressure of the gas medium is greater than a set value, water in the water pressure difference tank (7) overflows into the overflow water tank (8), and the water pressure difference tank (7) is communicated with the atmosphere, so that the combustible gas is blown off; heights of the water pressure difference tank (7), an isolation plate (12) and the water level in the water pressure difference tank (7) are adjusted, so that blow off pressure and working pressure can be adjusted and set conveniently; the overflow water tank (8) is connected with the water pressure difference tank (7) through a water return pipeline (9), a gate valve (10) and a check valve (11); and when the pressure of the gas medium is recovered, the water in the overflow water tank (8) flows back to the water pressure difference tank (7), and the blow off valve automatically resets and stops blowing off the gas. The wet-type self-resetting fire-retarding blow off valve has the advantages of automatically closing and resetting, conveniently adjusting the blow off pressure, precisely setting starting and stopping pressure and the like, along with low blow off pressure.
Description
Technical field
The invention belongs to valve technology field; Relate to a kind of wet type and diffuse valve; Particularly relate to a kind of wet type runback steric hindrance fire that is used for low pressure inflammable gas medium transport, diffuses safely and diffuse valve; Can when pressure medium is too high, open automatically, diffuse safely, recover just often to close automatically to reset at pressure medium.
Background technique
The conventional valve that diffuses adopts electronic or pneumatic valve; Control the unlatching of diffusing valve or close through control system, need to be equipped with pressure transducer and complicated control system, also need consumed power or pressurized air; Back-fire relief function if desired also must the optional equipment flame trap.Also there is the wet type that bursting membrane is installed on the wet type flame trap to diffuse valve in the existing technology; Bursting membrane breaks when pressure medium is too high; Diffusing passage opens; Realize that safety diffuses, this wet type is diffused valve not to be needed control system and sensor, can not realize safe diffusing under the prerequisite of consumed power or other energy, still; This wet type that belongs to existing technology is diffused valve and is still had following shortcoming: can not recover automatically after one, bursting membrane breaks, must artificially change bursting membrane and diffuse valve later on and just can close and reset; Two, the pressure medium that breaks of bursting membrane is not suitable for the application under low cracking pressure generally than higher; Three, the pressure medium that breaks of each bursting membrane is all not necessarily identical, makes the cracking pressure of diffusing valve have very big-difference.The current valve that diffuses is demanded urgently improving.
Summary of the invention
For overcoming the above-mentioned shortcoming and defect of existing technology; The objective of the invention is to: provide a kind of wet type runback steric hindrance fire to diffuse valve; Not only keep existing wet type to diffuse the advantage that safety is diffused under the valve prerequisite simple and reliable, not consumes energy, also solved existing wet type and diffused valve and can not close problem such as reset, cracking pressure height and cracking pressure are uncertain automatically.
The technological scheme that the present invention is taked for its technical problem of solution is:
A kind of wet type runback steric hindrance fire diffuses valve; Comprise: admission line (2), outlet pipe (3), flashback tank (5), connecting tube (6), differential water pressures case (7) and spill box (8); Said inlet, outlet pipeline (2,3) same flashback tanks (5) are communicated with, and it is characterized in that
The inside of said flashback tank (5) also is equiped with flow distribution plate (14), and said admission line (2) is positioned at the part of flashback tank (5) and passes flow distribution plate (14), and the outlet end of this part is positioned at the below of said flow distribution plate (14); The entrance point of said outlet pipe (3) is positioned at the top of said flow distribution plate (14);
Isolating plate (12) is set in the said differential water pressures case (7), differential water pressures case (7) top is divided into two cavitys;
Said flashback tank (5) is connected with differential water pressures case (7) through connecting tube (6), and differential water pressures case (7) outlet is provided with spill box (8), and said spill box (8) bottom is connected with differential water pressures case (7) through water return pipeline (9); When the inflammable gas pressure medium surpassed setting value, the water in the differential water pressures case (7) spilt into spill box (8), differential water pressures case (7) and atmosphere, and inflammable gas diffuses to atmosphere through connecting tube (6) and differential water pressures case (7); When the inflammable gas pressure medium recovers just often once more, the water in the spill box (8) flows back to differential water pressures case (7) through water return pipeline (9), diffuses valve and automatically resets and stop to diffuse.
Preferably, said water return pipeline (9) is provided with gate valve (10) and one-way valve (11), and gate valve (10) is used to regulate circling water flow rate, and one-way valve (11) only allows water to flow back to differential water pressures case (7) by spill box (8), avoids flowing backwards.
Preferably; The height of the height of the height of said differential water pressures case (7), isolating plate (12) and the interior water level of differential water pressures case (7) is adjustable; Through height, the height of isolating plate (12) and the height of the interior water level of differential water pressures case (7) of adjustment differential water pressures case (7), can regulate easily, set and diffuse pressure and working pressure.
Preferably, said wet type runback steric hindrance fire diffuses valve and also comprises the level sensor (13) that is installed on flashback tank (5) and the differential water pressures case (7), diffuses the valve working state in order to remote monitoring.
Preferably, said wet type runback steric hindrance fire diffuses valve and also comprises the glass tube fluviograph (1) that is installed on the flashback tank (5), is used for field observation and diffuses the valve working state.
Preferably, said flashback tank (5) seals through the blank flange (4) that is positioned at its top.
Preferably, said isolating plate (12) uses metallic material or nonmetallic material to process.
In practical application; When the pipe-line system flow reduces suddenly, (reduce start platform number suddenly or reduce load suddenly) like the downstream device; For safe operation and the whole pipeline transporting system that guarantees upstream equipment is operated in the pressure range of setting, wet type runback steric hindrance fire of the present invention can be set on the gas transmission main pipe of transporting system diffuse valve.When the transporting system pipeline pressure increased, the water in the differential water pressures case (7) overflowed, and diffuses opening of valves, and inflammable gas is just through emptying after the water of flashback tank (5).The emptying of inflammable gas is diffused aerial through water, so this diffuses valve and can inflammable gas in issuable burning things which may cause a fire disaster in outside and the pipe-line system be isolated, and realizes that safety diffuses.Can realize the computer remote monitoring through level sensor.
Innovative point of the present invention is: differential water pressures case (7) and isolating plate (12) one, are set; Through height, the height of isolating plate (12) and the height of the interior water level of differential water pressures case (7) of adjustment differential water pressures case (7), can regulate easily, set and diffuse pressure and working pressure.Two, spill box (8), water return pipeline (9), gate valve (10) and one-way valve (11) are set; Water when pressure medium is too high in the differential water pressures case (7) spills into spill box (8); When manifold pressure recovered normal range (NR), the water in the spill box (8) flowed back to differential water pressures case (7) through water return pipeline (9), gate valve (10) and one-way valve (11), diffused valve and automatically reset and stop to diffuse.
Compare with traditional bleeding device, the invention has the advantages that:
1. diffusing valve when pressure medium recovers closes automatically and resets;
2. it is easy to adjust to diffuse pressure, and valve opening, closing pressure are set accurately;
3. it is low to diffuse valve opening pressure, and the safety that is specially adapted to low pressure inflammable gas conveyance conduit is diffused;
4. there are not final controlling element and other power equipment, simple in structure, maintenance, easy to maintenance.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the systematic schematic diagram of the embodiment of the invention.
Wherein, glass tube fluviograph 1, admission line 2, outlet pipe 3, blank flange 4, flashback tank 5, connecting tube 6, differential water pressures case 7, spill box 8, water return pipeline 9, gate valve 10, one-way valve 11, isolating plate 12, level sensor 13, flow distribution plate 14.
Embodiment
Fig. 1 is one embodiment of the present invention, and inflammable gas gets into flashback tanks 5 through admission line 2 and metal flow distribution plate 14, when the inflammable gas pressure medium just often, by water seal, inflammable gas flows to downstream line through outlet pipe 3 in the differential water pressures case 7.Flashback tank 5 is connected with differential water pressures case 7 through connecting tube 6, and 7 outlets of differential water pressures case are provided with spill box 8.When the inflammable gas pressure medium surpassed setting value, the water in the differential water pressures case 7 spilt into spill box 8, differential water pressures case 7 and atmosphere, and inflammable gas diffuses to atmosphere through connecting tube 6 and differential water pressures case 7.Isolating plate 12 is set in the differential water pressures case 7, differential water pressures case 7 tops are divided into two cavitys; Through the height of adjustment differential water pressures case 7, the height of isolating plate 12 and the height of differential water pressures case 7 interior water levels, can regulate easily, set and diffuse pressure and working pressure.Spill box 8 bottoms are connected with differential water pressures case 7 with one-way valve 11 through water return pipeline 9, gate valve 10.When the inflammable gas pressure medium recovers just often once more, the water in the spill box 8 flows back to differential water pressures case 7 through water return pipeline 9, gate valve 10 and one-way valve 11, diffuses valve and automatically resets and stop to diffuse.Gate valve 10 is used to regulate circling water flow rate; 11 on one-way valve allows water to flow back to differential water pressures case 7 by spill box 8, avoids flowing backwards.Level sensor 13 is used for the control system remote monitoring and diffuses the valve working state.Glass tube fluviograph 1 is used for field observation and diffuses the valve working state.
Claims (7)
1. a wet type runback steric hindrance fire diffuses valve; Comprise: admission line (2), outlet pipe (3), flashback tank (5), connecting tube (6), differential water pressures case (7) and spill box (8); Said inlet, outlet pipeline (2,3) same flashback tanks (5) are communicated with, and it is characterized in that
The inside of said flashback tank (5) also is equiped with flow distribution plate (14), and said admission line (2) is positioned at the inner part of flashback tank (5) and passes flow distribution plate (14), and the outlet end of this part is positioned at the below of flow distribution plate (14); The entrance point of said outlet pipe (3) is positioned at the top of flow distribution plate (14);
Height-adjustable isolating plate (12) is set in the said differential water pressures case (7), and said isolating plate (12) is divided into two cavitys with the top of differential water pressures case (7);
Said flashback tank (5) is connected with differential water pressures case (7) through connecting tube (6); Differential water pressures case (7) outlet is provided with spill box (8); Said spill box (8) bottom is connected with differential water pressures case (7) through water return pipeline (9): when the inflammable gas pressure medium surpasses setting value; Water in the differential water pressures case (7) spills into spill box (8), differential water pressures case (7) and atmosphere, and inflammable gas diffuses to atmosphere through connecting tube (6) and differential water pressures case (7); When the inflammable gas pressure medium recovers just often once more, the water in the spill box (8) flows back to differential water pressures case (7) through water return pipeline (9), diffuses valve and automatically resets and stop to diffuse.
2. wet type runback steric hindrance fire according to claim 1 diffuses valve; It is characterized in that: said water return pipeline (9) is provided with gate valve (10) and one-way valve (11); Gate valve (10) is used to regulate circling water flow rate, and one-way valve (11) only allows water to flow back to differential water pressures case (7) by spill box (8).
3. wet type runback steric hindrance fire according to claim 2 diffuses valve, it is characterized in that: the height of the height of the height of said differential water pressures case (7), isolating plate (12) and the interior water level of differential water pressures case (7) is adjustable.
4. diffuse valve according to each described wet type runback steric hindrance fire of claim 1-3, it is characterized in that: the said valve that diffuses also comprises the level sensor (13) that is installed on flashback tank (5) and the differential water pressures case (7), diffuses the valve working state in order to remote monitoring.
5. diffuse valve according to each described wet type runback steric hindrance fire of claim 1-3, it is characterized in that: said wet type runback steric hindrance fire diffuses valve and also comprises the glass tube fluviograph (1) that is installed on the flashback tank (5), is used for field observation and diffuses the valve working state.
6. diffuse valve according to each described wet type runback steric hindrance fire of claim 1-3, it is characterized in that: said flashback tank (5) seals through the blank flange (4) that is positioned at its top.
7. diffuse valve according to each described wet type runback steric hindrance fire of claim 1-3, it is characterized in that: said isolating plate (12) uses metallic material or nonmetallic material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110346798 CN102506205B (en) | 2011-11-04 | 2011-11-04 | Wet-type self-resetting fire-retarding blow off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110346798 CN102506205B (en) | 2011-11-04 | 2011-11-04 | Wet-type self-resetting fire-retarding blow off valve |
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| Publication Number | Publication Date |
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| CN102506205A true CN102506205A (en) | 2012-06-20 |
| CN102506205B CN102506205B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110346798 Active CN102506205B (en) | 2011-11-04 | 2011-11-04 | Wet-type self-resetting fire-retarding blow off valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091348A (en) * | 2017-05-05 | 2017-08-25 | 北京首都机场动力能源有限公司 | A kind of fluid-tight Safety relief valve |
| CN112050200A (en) * | 2020-08-13 | 2020-12-08 | 新兴铸管股份有限公司 | Anti-knock coal injection heating furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936089A (en) * | 1987-12-18 | 1990-06-26 | Kawasaki Steel Corporation | Gas turbine plant system and gas pressure stabilizer thereof in emergency |
| CN200989482Y (en) * | 2006-12-19 | 2007-12-12 | 胜利油田胜利动力机械有限公司 | Wet gas diffusing valve |
| CN201934729U (en) * | 2011-03-10 | 2011-08-17 | 季建威 | Gas check water seal valve |
| CN202302119U (en) * | 2011-11-04 | 2012-07-04 | 中国科学院工程热物理研究所 | Wet-type relief valve |
-
2011
- 2011-11-04 CN CN 201110346798 patent/CN102506205B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936089A (en) * | 1987-12-18 | 1990-06-26 | Kawasaki Steel Corporation | Gas turbine plant system and gas pressure stabilizer thereof in emergency |
| CN200989482Y (en) * | 2006-12-19 | 2007-12-12 | 胜利油田胜利动力机械有限公司 | Wet gas diffusing valve |
| CN201934729U (en) * | 2011-03-10 | 2011-08-17 | 季建威 | Gas check water seal valve |
| CN202302119U (en) * | 2011-11-04 | 2012-07-04 | 中国科学院工程热物理研究所 | Wet-type relief valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091348A (en) * | 2017-05-05 | 2017-08-25 | 北京首都机场动力能源有限公司 | A kind of fluid-tight Safety relief valve |
| CN112050200A (en) * | 2020-08-13 | 2020-12-08 | 新兴铸管股份有限公司 | Anti-knock coal injection heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102506205B (en) | 2013-04-24 |
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