CN103062426B - Toxic smoke safety shutoff valve - Google Patents
Toxic smoke safety shutoff valve Download PDFInfo
- Publication number
- CN103062426B CN103062426B CN201210360654.6A CN201210360654A CN103062426B CN 103062426 B CN103062426 B CN 103062426B CN 201210360654 A CN201210360654 A CN 201210360654A CN 103062426 B CN103062426 B CN 103062426B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- hole side
- valve body
- piston rod
- 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
- 239000000779 smoke Substances 0.000 title claims abstract description 13
- 231100000331 toxic Toxicity 0.000 title claims abstract description 13
- 230000002588 toxic effect Effects 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000007789 gas Substances 0.000 claims abstract description 32
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 244000273618 Sphenoclea zeylanica Species 0.000 claims description 6
- 239000004071 soot Substances 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002956 ash Substances 0.000 abstract 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract 1
- 239000003034 coal gas Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Details Of Valves (AREA)
- Fluid-Driven Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a toxic smoke safety shutoff valve which comprises a valve body, a valve plate and a gas sealing box, wherein a valve plate sliding chute is arranged on the inner lateral wall of the gas sealing box. The toxic smoke safety shutoff valve has the advantages that the valve plate is sealed by dynamic pressure: a seal ring simultaneously expands outwards under the effect of high-pressure gases when the valve plate is opened in place or closed in place under the effect of an air cylinder, the seal ring is tightly attached to a valve base, dynamic pressing of the valve plate and the valve base is achieved, and the valve plate and the valve base are sealed without leakage; the valve body is sealed by gas pressure: the valve body is of a totally sealed structure, after nitrogen is filled into the valve body, pressure in the valve is larger than that in a coal gas pipe, and therefore toxic smoke is ensured not to leak into the valve body and gas sealing of the valve body is achieved; safe alarming is achieved: safety accidents caused by damage of the seal ring are avoided; automatic ash cleaning is achieved: ashes are ensured not to accumulate in the valve body; and the air inlet mode of a hollow pipe of a piston rod is improved, and therefore the toxic smoke safety shutoff valve is attractive in appearance, ingenious and safe.
Description
Technical field
Type of the present invention relates to a kind of toxic smoke gas safety valve.
Background technique
Gas valve is in the industries such as a kind of extensive use chemical metallurgy, with the special valve controlling gas pipe line break-make.Adopted gas valve is all the rubber rings adopting mechanical type to compress on valve seat, valve plate on the market is at present fixed structural type.There is rubber cracky in this kind of structure, and damaged after in more difficult, the valve body of examine and replace easily dust stratification, be not closed completely and leaked uneasy congruent shortcoming.
Summary of the invention
The object of this invention is to provide a kind of toxic smoke safety shutoff valve.
Technological scheme of the present invention is, a kind of toxic smoke safety shutoff valve, comprise valve body, valve plate, gas seal case, valve plate chute is had at gas seal box wall, valve plate through-hole side seal groove and valve plate blind hole side sealing ring recess is had in the bi-side of valve plate, the valve plate through-hole side seal groove of valve plate both sides is communicated with by valve plate through-hole side seal groove through hole, the valve plate blind hole side sealing ring recess of valve plate both sides is communicated with by valve plate blind hole side sealing ring recess through hole, valve plate through-hole side seal ring is had in valve plate through-hole side seal groove, valve plate blind hole side sealing circle is had in valve plate blind hole side sealing ring recess through hole, there are left air cylinder connecting rod and right air cylinder connecting rod in the left and right sides, valve plate one end, outside gas seal case, have left cylinder and right cylinder, the left cylinder piston rod of left cylinder is hollow stem, and connects left air cylinder connecting rod, is inserted with left cylinder intake pipe at left cylinder piston rod, and left cylinder intake pipe is connected to valve opening encapsulation air valve, the right cylinder piston rod of right cylinder is hollow stem, and connects right air cylinder connecting rod, is inserted with right cylinder intake pipe at right cylinder piston rod, right cylinder intake pipe is connected to valve and closes sealing air valve, tracheae one termination valve plate through-hole side seal groove through hole opened by valve, the left cylinder piston rod of another termination, valve cuts out nitrogen tube one termination valve plate blind hole side sealing ring recess through hole, the right cylinder piston rod of another termination, at gas seal case, hermetic seal air inlet pressurizing valve is housed, hermetic seal exhaust reducing valve, soot cleaning valve and pressure detecting instrument.
The valve body of gas seal case both sides is connected with bypass tube, bypass tube is equipped with bypass valve.
Sealing gas adopts nitrogen.
The present invention has following technique effect, and one be valve plate is dynamic pressure seal.On valve plate, both sides are provided with 4 seal rings, i.e. 2 through-hole side seal rings, 2 blind hole side sealing circles.Valve plate is under cylinder action, and reach after position or pass put in place, seal ring is under 0.5MPa pressurized gas are generally nitrogen effect, and outwards expand, seal ring is adjacent to valve seat tightly simultaneously, realizes valve plate with valve seat dynamically compresses, and seals No leakage; Two is the sealings of valve body gas pressure: valve body is full-closed structure, the nitrogen of 0.3MPa is filled with from the nitrogen suction valve at top, air pressure in valve is greater than the air pressure 0.15 ~ 0.25MPa in gas pipe, in any case ensure that poison gas also can not leak into valve body, realizes gas seal; Three is safety alarms: valve body is equipped with pressure transducer, and under normal circumstances, in valve body, nitrogen pressure can remain on 0.3MPa, does not reach this value if calm the anger, then can produce audible and visible alarm.Illustrate that rubber seal that valve plate is working is damaged, need repairing replacing.Avoid because seal ring damages the security incident caused; Four is automatic ash removings: when valve body nitrogen pressure normally remains on 0.3MPa, and soot cleaning valve can regularly open 5 seconds, and the dust stratification in valve body is discharged in outside atmosphere with nitrogen moment earial drainage.Ensureing in valve body can not dust stratification, after soot cleaning valve opens 5 seconds, and pressure release in valve body, suction valve can open supplementary nitrogen automatically, keeps valve body internal pressure to maintain 0.3MPa; Five is piston rod hollow tubular intake methods: the gas source pipe of rubber ring dynamic pressure seal adopts unique air intake type, and suction tude is arranged in the hollow tubular of cylinder piston rod.This avoid, during valve plate sweeping action, the flexible air inlet pipe needed for dynamic pressure seal, more attractive in appearance, more ingenious, safer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the present invention right cylinder place partial cross sectional views.
A-A cross section view when Fig. 3 is closed condition of the present invention.
A-A cross section view when Fig. 4 is opening state of the present invention.
Fig. 5 is the partial cross sectional views of invention valve plate.
Fig. 6 is the B-B cross section view of invention valve plate.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Fig. 6, a kind of toxic smoke safety shutoff valve, comprise valve body 15, valve plate 3, gas seal case 1, valve plate chute 2 is had at gas seal case 1 madial wall, valve plate through-hole side seal groove 28 and valve plate blind hole side sealing ring recess 24 is had in the bi-side of valve plate 3, the valve plate through-hole side seal groove 28 of valve plate 3 both sides is communicated with by valve plate through-hole side seal groove through hole 29, the valve plate blind hole side sealing ring recess 24 of valve plate 3 both sides is communicated with by valve plate blind hole side sealing ring recess through hole 25, valve plate through-hole side seal ring 5 is had in valve plate through-hole side seal groove 28, valve plate blind hole side sealing circle 4 is had in valve plate blind hole side sealing ring recess through hole 25, there are left air cylinder connecting rod 27 and right air cylinder connecting rod 12 in the left and right sides, valve plate 3 one end, outside gas seal case 1, have left cylinder 13 and right cylinder 10, the left cylinder piston rod 11 of left cylinder 13 is hollow stem, and connects left air cylinder connecting rod 27, is inserted with left cylinder intake pipe 8 at left cylinder piston rod 11, and left cylinder intake pipe 8 is connected to valve opening encapsulation air valve 14, the right cylinder piston rod 9 of right cylinder 10 is hollow stem, and connects right air cylinder connecting rod 12, is inserted with right cylinder intake pipe 7 at right cylinder piston rod 9, right cylinder intake pipe 7 is connected to valve and closes sealing air valve 6, tracheae 30 1 termination valve plate through-hole side seal groove through hole 29 opened by valve, the left cylinder piston rod 11 of another termination, valve cuts out tracheae 26 1 termination valve plate blind hole side sealing ring recess through hole 25, the right cylinder piston rod 9 of another termination, at gas seal case 1, sealing air inlet pressurizing valve 17 is housed, sealing exhaust reducing valve 16, soot cleaning valve 31 and pressure detecting instrument 32, the valve body 15 of gas seal case 1 both sides is connected with bypass tube 22, bypass tube 22 is equipped with bypass valve 23, sealing gas adopts nitrogen.
Claims (3)
1. a toxic smoke safety shutoff valve, comprise valve body (15), valve plate (3), gas seal case (1), valve plate chute (2) is had at gas seal case (1) madial wall, it is characterized in that: have valve plate through-hole side seal groove (28) and valve plate blind hole side sealing ring recess (24) in the bi-side of valve plate (3), the valve plate through-hole side seal groove (28) of valve plate (3) both sides is communicated with by valve plate through-hole side seal groove through hole (29), valve plate blind hole side sealing ring recess (24) of valve plate (3) both sides is communicated with by valve plate blind hole side sealing ring recess through hole (25), valve plate through-hole side seal ring (5) is had in valve plate through-hole side seal groove (28), valve plate blind hole side sealing circle (4) is had in valve plate blind hole side sealing ring recess through hole (25), there are left air cylinder connecting rod (27) and right air cylinder connecting rod (12) in valve plate (3) left and right sides, one end, have left cylinder (13) and right cylinder (10) in gas seal case (1) outside, the left cylinder piston rod (11) of left cylinder (13) is hollow stem, and connects left air cylinder connecting rod (27), is inserted with left cylinder intake pipe (8) at left cylinder piston rod (11), and left cylinder intake pipe (8) is connected to valve opening encapsulation air valve (14), the right cylinder piston rod (9) of right cylinder (10) is hollow stem, and connects right air cylinder connecting rod (12), is inserted with right cylinder intake pipe (7) at right cylinder piston rod (9), right cylinder intake pipe (7) is connected to valve and closes sealing air valve (6), tracheae (30) one termination valve plate through-hole side seal groove through hole (29) opened by valve, the left cylinder piston rod of another termination (11), valve cuts out tracheae (26) termination valve plate blind hole side sealing ring recess through hole (25), the right cylinder piston rod of another termination (9), at gas seal case (1), sealing air inlet pressurizing valve (17) is housed, sealing exhaust reducing valve (16), soot cleaning valve (31) and pressure detecting instrument (32).
2. a kind of toxic smoke safety shutoff valve according to claim 1, is characterized in that: on the valve body (15) of gas seal case (1) both sides, be connected with bypass tube (22), bypass tube (22) is equipped with bypass valve (23).
3. a kind of toxic smoke safety shutoff valve according to claim 1, is characterized in that: sealing gas adopts nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360654.6A CN103062426B (en) | 2012-09-25 | 2012-09-25 | Toxic smoke safety shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360654.6A CN103062426B (en) | 2012-09-25 | 2012-09-25 | Toxic smoke safety shutoff valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103062426A CN103062426A (en) | 2013-04-24 |
| CN103062426B true CN103062426B (en) | 2015-04-29 |
Family
ID=48105205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210360654.6A Expired - Fee Related CN103062426B (en) | 2012-09-25 | 2012-09-25 | Toxic smoke safety shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103062426B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901805B (en) * | 2021-01-27 | 2023-03-21 | 中国汽车工程研究院股份有限公司 | Automatic opening device for large-area pressure release valve in vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570670A (en) * | 1984-05-21 | 1986-02-18 | Johnson Charles D | Valve |
| CN88201243U (en) * | 1988-01-31 | 1988-09-07 | 石家庄市阀门一厂 | Sliding valve with vertical closure member |
| CN201737907U (en) * | 2010-04-19 | 2011-02-09 | 淄博义丰机械工程有限公司 | Gas flow adjusting device for dry distillation section center pipe of gas generator |
| CN101813198B (en) * | 2010-04-16 | 2011-09-21 | 钟汉光 | Dynamic sealing gas gate valve |
| CN202884075U (en) * | 2012-09-25 | 2013-04-17 | 湖南金中环保设备有限责任公司 | Toxic flue gas safety shutoff valve |
-
2012
- 2012-09-25 CN CN201210360654.6A patent/CN103062426B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570670A (en) * | 1984-05-21 | 1986-02-18 | Johnson Charles D | Valve |
| CN88201243U (en) * | 1988-01-31 | 1988-09-07 | 石家庄市阀门一厂 | Sliding valve with vertical closure member |
| CN101813198B (en) * | 2010-04-16 | 2011-09-21 | 钟汉光 | Dynamic sealing gas gate valve |
| CN201737907U (en) * | 2010-04-19 | 2011-02-09 | 淄博义丰机械工程有限公司 | Gas flow adjusting device for dry distillation section center pipe of gas generator |
| CN202884075U (en) * | 2012-09-25 | 2013-04-17 | 湖南金中环保设备有限责任公司 | Toxic flue gas safety shutoff valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103062426A (en) | 2013-04-24 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 411101, Hunan, Xiangtan hi tech Zone, 38 academy road, Torch Innovation and Innovation Park, South Area Patentee after: Hunan Jinzhong Environmental Equipment Co., Ltd. Address before: 411101, Hunan, Xiangtan hi tech Zone, 38 academy road, Torch Innovation and Innovation Park, South Area Patentee before: Hunan Jinzhong Environmental Protection Equipment Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Toxic smoke safety shutoff valve Effective date of registration: 20151230 Granted publication date: 20150429 Pledgee: Xiangtan torch Venture Investment Co., Ltd. Pledgor: Hunan Jinzhong Environmental Equipment Co., Ltd. Registration number: 2015430000046 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| 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: 20150429 Termination date: 20160925 |