CN110307373A - A kind of gas self-closing valve - Google Patents
A kind of gas self-closing valve Download PDFInfo
- Publication number
- CN110307373A CN110307373A CN201910547812.0A CN201910547812A CN110307373A CN 110307373 A CN110307373 A CN 110307373A CN 201910547812 A CN201910547812 A CN 201910547812A CN 110307373 A CN110307373 A CN 110307373A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve chamber
- chamber
- gas
- elastic ring
- 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.)
- Pending
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000004888 barrier function Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 42
- 239000000567 combustion gas Substances 0.000 description 8
- 230000006837 decompression Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
- F16K21/06—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of gas self-closing valves, including valve body, valve deck and valve rod, valve deck is equipped with turncap, turncap is fixed by screws on valve rod, valve rod is through setting in valve deck, valve port and valve chamber are equipped in the valve body, valve chamber is equipped with the venthole being connected to valve port, the side of valve chamber is connected to valve body air intake duct, the other side of valve chamber is connected to by valve port with the gas off-take of valve body, it is equipped with gas leakage in the air intake duct of the valve body and obstructs mechanism, the valve deck is arranged in the upper surface of valve port, the lower end of valve rod is located in valve chamber, the second elastic ring is successively arranged on the valve rod from top to bottom, upper sealing-plug, valve pad and lower sealing-plug, the pedestal for fixing the second elastic ring is additionally provided on valve rod, pedestal and valve-stem integratedization are arranged.The beneficial effects of the present invention are: can be adapted for any scene, and cost is relatively low, it is hardly damaged.
Description
Technical field
The present invention relates to a kind of valve fields, relate generally to a kind of gas self-closing valve.
Background technique
Pipe gas self-closing valve is installed on low-pressure fuel gas system pipeline, when there is under-voltage, superpressure in gas supply conduit pressure,
Device that simultaneously must be manually opened can be automatically closed in not electricity consumption or other external impetus.
The patent of Chinese invention patent application number 201820699644.8 discloses a kind of pipe gas self-closing valve, including valve
Body, upper cover, valve rod, diaphragm, upper sealing-plug and lower sealing-plug, the side of the valve body are inlet pipe connection, and the other side is
Gas connecting tube is equipped with the valve chamber of cylindrical shape in the valve body, and the upper end of the valve chamber is equipped with valve port, the inlet pipe connection
Side is communicated with the side of the valve chamber, and the valve chamber is communicated by valve port with the outlet connecting tube, the diaphragm
Edge part is compressed by the upper cover, and sealing-plug and lower sealing-plug are equipped on the valve rod, and the valve port is arranged in institute
State the interval location between sealing-plug and lower sealing-plug, it is characterised in that: the upper cover upper end be equipped with it is cylindric and to
The mounting cylinder of upper opening, the valve rod are passed through from the mounting cylinder, and magnet ring is equipped in the mounting cylinder, and the magnet ring is solid
Surely it is socketed on the valve rod and is touched with the bottom magnetic suction of the mounting cylinder, rotation is socketed on the outer wall of the mounting cylinder
Button, the valve stem end are fixedly installed with end cap, and the first axis corresponding with the end cap is equipped on the knob
Hole, the end cap in cylindrical shape and it is movable be arranged in first central axis hole, the described end cap outer peripheral surface configuration
Elastic ring, the elastic ring and the first central axis hole inner wall CONTACT WITH FRICTION, when the lower sealing-plug is in upper limit position, valve rod will
End cap ejection makes elastic ring leave the first central axis hole, the returning place force of elastic ring be greater than magnet ring magnetic force and diaphragm screen resilience it
With.
Its working principle is that: in normal barometric pressure, it is close that combustion gas overcomes the magnetic attraction of magnet ring and the elastic force of diaphragm to push open
Blocking flows to outlet connecting tube from valve port, and when under-voltage, magnet ring magnetic lives the bottom of mounting cylinder, and valve rod pushes upper sealing-plug at this time
Valve port is blocked, when superpressure, air pressure overcomes the frictional force of the first central axis hole on magnetic, diaphragm and elastic ring and knob, pushes valve
Bar moves upwards, until end cap and knob are detached from, so that the clogging valve port of lower sealing-plug.The gas self-closing valve of this structure, when
When gas leakage, as long as a kind of method for obstructing gas circulation, once failure, will cause fire or personnel's combustion gas to be poisoned；And
During use, magnet ring needs to use under particular circumstances, not so magnet ring meeting loss of excitation, so as to cause self-closing valve damage.
Summary of the invention
The present invention in order to solve problems in the prior art, provides a kind of gas self-closing valve thus.
A kind of gas self-closing valve, including valve body, valve deck and valve rod, valve deck are equipped with turncap, and turncap is solid by screw
It is scheduled on valve rod, valve rod is equipped with valve port and valve chamber through being arranged in valve deck in the valve body, valve chamber is equipped with and is connected to valve port
Venthole, valve chamber is the working chamber of gas circulation, and the side of valve chamber is connected to valve body air intake duct, and the other side of valve chamber passes through valve
Mouth is connected to the gas off-take of valve body, and gas leakage is equipped in the air intake duct of the valve body and obstructs mechanism, gas leakage barrier mechanism is mainly being fired
During gas decompression, automatic closure prevents the device of gas leakage, and gas leakage barrier mechanism includes the valve being arranged in air intake duct
Chamber set, valve chamber put on the venthole for being equipped with and being connected to valve body air intake duct, are equipped with valve chamber piece and valve chamber cap in valve chamber set, are located at valve chamber
Sealing ring is additionally provided in air intake duct on the outside of piece, the diameter of valve chamber cap is greater than the diameter of venthole, and valve chamber cap is mainly used for blocking
The flowing of gas, it is Elastic Cylindrical circle that valve chamber cap, which connect the first elastic ring with valve chamber piece by the first elastic ring, and valve chamber piece is used
In fixing the first elastic ring；The valve deck is arranged in the upper surface of valve port, and the lower end of valve rod is located in valve chamber, from upper on the valve rod
The second elastic ring, upper sealing-plug, valve pad and lower sealing-plug are successively arranged under, the second elastic ring is conical resilient circle, valve rod
On be additionally provided with pedestal for fixing the second elastic ring, pedestal and valve-stem integratedization are arranged.
The beneficial effects of the present invention are: 1, by being mounted with gas leakage baffling device in valve body air intake duct, may be implemented to work as
When combustion gas decompression, play the role of primary seal.2, valve is driven instead of the magnetic suck form of original product by using elastic ring
Bar movement not only can be suitable for any scene, and cost is relatively low, is hardly damaged.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is cross-sectional view of the invention；
Fig. 2 is gas circulation schematic diagram of the invention.
1, valve body；2, valve deck；3, valve rod；4, valve port；5, valve chamber；6, air intake duct；7, gas off-take；8, valve chamber set；9, outlet
Hole；10, valve chamber piece；11, valve chamber cap；12, sealing ring；13, the first elastic ring；14, the second elastic ring；15, upper sealing-plug；16,
Valve pad；17, lower sealing-plug；18, pedestal；19, venthole；20, turncap.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
A kind of gas self-closing valve as depicted in figs. 1 and 2, including valve body 1, valve deck 2 and valve rod 3, valve deck 2 are equipped with rotation
Cap 20, turncap 20 are fixed by screws on valve rod 3, and valve rod 3 is equipped with valve port in the valve body 1 through being arranged in valve deck 2
4 and valve chamber 5, valve chamber 5 is equipped with the venthole 19 be connected to valve port 4, the inside of valve body 1 equipped with the valve chamber 5 being connected to valve port 4,
Valve chamber 5 is the working chamber of gas circulation, and the side of valve chamber 5 is connected to the air intake duct 6 of valve body 1, and the other side of valve chamber 5 passes through valve port
4 are connected to the gas off-take 7 of valve body 1, and gas leakage is equipped in the air intake duct 6 of the valve body 1 and obstructs mechanism, gas leakage barrier mechanism mainly exists
During combustion gas decompression, automatic closure prevents the device of gas leakage, and gas leakage barrier mechanism includes being arranged in air intake duct 6
Valve chamber set 8, valve chamber set 8 are equipped with the venthole 9 being connected to air intake duct 6, are equipped with valve chamber piece 10 and valve chamber cap 11 in valve chamber set 8,
Sealing ring 12 is additionally provided in the air intake duct 6 in 10 outside of valve chamber piece, the diameter of valve chamber cap 12 is greater than the diameter of venthole, valve chamber
Cap 12 is mainly used for blocking the flowing of gas, and valve chamber cap 12 is connect by the first elastic ring 13 with valve chamber piece 10, the first elastic ring
13 be Elastic Cylindrical circle, and valve chamber piece 10 is for fixing the first elastic ring 13；The lid of valve 2 is arranged in the upper surface of valve port 4, valve rod
3 through being arranged in valve deck 2, and the lower end of valve rod 3 is located in valve chamber 5, is successively arranged the second elasticity on the valve rod 3 from top to bottom
Circle 14, upper sealing-plug 15, valve pad 16 and lower sealing-plug 17, the second elastic ring 14 are conical resilient circle, are additionally provided with use on valve rod 3
In the pedestal 18 for fixing the second elastic ring 14, pedestal 18 and 3 integrated setting of valve rod.
The working principle of the invention is:
1. left end air inlet, right end outlet；
2. left end air inlet, when air pressure is less than setting value, gas can be with valve chamber cap, into valve chamber；When air pressure is greater than setting
When, valve chamber cap moves to right, and closes venthole；
3. gas self-closing valve is in original state, sealing-plug in the second elastic ring push-tight, upper sealing-plug is closed with venthole
It closes.When left end air inlet air pressure is less than setting value, knob cap is moved up together with upper sealing-plug, gas acts on sealing at this time
Beyond the Great Wall, gas pressure and elastic force keep balance, and gas is from right end outlet；
4. outlet side gas leakage, then air pressure reduces in valve body cavity after valve body, which is ventilated, to be worked normally, sealing-plug is acted on
Pressure less than the second elastic ring thrust when, upper sealing-plug is moved down to be closed with valve body, and valve body is in close state；
The present invention is left end air inlet, and right end outlet, self-closing valve seals in the first elastic ring push-tight in original state part
Plug, upper sealing-plug and venthole are closed.After valve body, which is ventilated, to be worked normally, outlet side gas leakage, the gaseous-pressure in valve chamber is less than
When setting value, valve chamber cap is in the open state, and combustion gas flows into valve chamber by venthole, and combustion gas overcomes the pressure of the second elastic ring,
And the elastic force of diaphragm pushes sealing-plug open and pushes valve pad open and flows to valve port from valve chamber, flows into gas off-take from valve port；
When air pressure is greater than the setting value of gas meter, flow meter, valve chamber hatband moves the first elastic ring and moves right, and part blocks venthole,
To block the circulation of combustion gas；
When left end air inlet air pressure is less than setting value, 6 knob cap of part is moved up together with 11 sealing-plug of part, gas is made at this time
For sealing-plug, gas pressure and elastic force keep balance, and gas is from right end outlet；
Then air pressure reduces in valve body cavity, acts on 11 sealing-plug pressure of part less than 10 spring thrust of part, under 11 sealing-plug of part
It moves and is closed with valve body, valve body is in close state；
The innovation of the present invention through the above structure may be implemented to play the role of multi-stage sealed when combustion gas decompression.And it adopts
Magnetic suck form with elastic ring instead of original product acts come driving stem, not only can be suitable for any scene, and
And cost is relatively low, is hardly damaged.
It is above-mentioned according to the present invention for enlightenment, through the above description, relevant staff completely can without departing from
In the range of this invention technical idea, various changes and amendments are carried out.The technical scope of this invention is not limited to
In the content on specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (4)
1. a kind of gas self-closing valve, including valve body, valve deck and valve rod, valve deck is equipped with turncap, and turncap is fixed by screw
On valve rod, valve rod is equipped with valve port and valve chamber in the valve body through being arranged in valve deck, and valve chamber is equipped with to be connected to valve port
The side of venthole, valve chamber is connected to valve body air intake duct, which is characterized in that the other side of valve chamber passes through the outlet of valve port and valve body
Road connection, the air intake duct of the valve body is interior to be equipped with gas leakage barrier mechanism, and gas leakage barrier mechanism includes setting in air intake duct
Valve chamber set, valve chamber, which is put on, is equipped with the venthole that be connected to valve body air intake duct, equipped with valve chamber piece and valve chamber cap, valve chamber in valve chamber set
Cap is connect by the first elastic ring with valve chamber piece；The valve deck is arranged in the upper surface of valve port, and the lower end of valve rod is located in valve chamber, institute
It states and is successively arranged the second elastic ring, upper sealing-plug, valve pad and lower sealing-plug on valve rod from top to bottom, be additionally provided on valve rod for solid
The pedestal of fixed second elastic ring, pedestal and valve-stem integratedization are arranged.
2. a kind of gas self-closing valve according to claim 1, which is characterized in that the second elastic ring is conical resilient circle.
3. a kind of gas self-closing valve according to claim 1, which is characterized in that the first elastic ring is Elastic Cylindrical circle.
4. a kind of gas self-closing valve according to claim 1, which is characterized in that in the air intake duct on the outside of valve chamber piece also
Equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547812.0A CN110307373A (en) | 2019-06-24 | 2019-06-24 | A kind of gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547812.0A CN110307373A (en) | 2019-06-24 | 2019-06-24 | A kind of gas self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110307373A true CN110307373A (en) | 2019-10-08 |
Family
ID=68076346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910547812.0A Pending CN110307373A (en) | 2019-06-24 | 2019-06-24 | A kind of gas self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110307373A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795197A (en) * | 2020-07-16 | 2020-10-20 | 华广发 | Intelligent superflow self-closing multi-interface gas valve of internet of things |
| CN111853313A (en) * | 2020-06-22 | 2020-10-30 | 成都鑫豪斯电子探测技术有限公司 | Pipeline self-closing valve for automatically closing pipeline |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0596748U (en) * | 1992-05-29 | 1993-12-27 | 矢崎総業株式会社 | Leakage monitoring device for gas supply equipment |
| CN2869504Y (en) * | 2005-12-12 | 2007-02-14 | 宁波市蓝箭燃具有限公司 | Gas automatic-closing safety valve |
| CN202360799U (en) * | 2011-10-20 | 2012-08-01 | 南京普鲁卡姆电器有限公司 | Double-gas source fuel gas control system |
| CN206478260U (en) * | 2017-02-16 | 2017-09-08 | 常景泓 | A kind of gas self-closing safety valve |
| CN210510424U (en) * | 2019-06-24 | 2020-05-12 | 徐敏 | Gas self-closing valve |
-
2019
- 2019-06-24 CN CN201910547812.0A patent/CN110307373A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0596748U (en) * | 1992-05-29 | 1993-12-27 | 矢崎総業株式会社 | Leakage monitoring device for gas supply equipment |
| CN2869504Y (en) * | 2005-12-12 | 2007-02-14 | 宁波市蓝箭燃具有限公司 | Gas automatic-closing safety valve |
| CN202360799U (en) * | 2011-10-20 | 2012-08-01 | 南京普鲁卡姆电器有限公司 | Double-gas source fuel gas control system |
| CN206478260U (en) * | 2017-02-16 | 2017-09-08 | 常景泓 | A kind of gas self-closing safety valve |
| CN210510424U (en) * | 2019-06-24 | 2020-05-12 | 徐敏 | Gas self-closing valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853313A (en) * | 2020-06-22 | 2020-10-30 | 成都鑫豪斯电子探测技术有限公司 | Pipeline self-closing valve for automatically closing pipeline |
| CN111795197A (en) * | 2020-07-16 | 2020-10-20 | 华广发 | Intelligent superflow self-closing multi-interface gas valve of internet of things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8360741B2 (en) | Manual/pneumatic pump structure | |
| CA2696033A1 (en) | Filter housing assembly | |
| CN110307373A (en) | A kind of gas self-closing valve | |
| US4499921A (en) | Three-way air valve | |
| CN105003680B (en) | A kind of semisphere valve | |
| CN209875967U (en) | An integrated electric throttling stop valve without stem packing | |
| CN110671502A (en) | An anti-water hammer globe valve | |
| CN208605418U (en) | A kind of pilot type electromagnetic switch valve | |
| EP0894214B1 (en) | A diaphragm valve | |
| CN210510424U (en) | Gas self-closing valve | |
| CN101776179A (en) | Temperature control valve capable of being cleaned and maintained on line | |
| US6289932B1 (en) | Dual port soft start valve | |
| CN218818192U (en) | Pneumatic pressure regulating stop valve | |
| CN207421390U (en) | A kind of pneumatic diaphragm valve | |
| MX2010000239A (en) | Fluid flow valve. | |
| CN212509569U (en) | Novel butterfly valve locking device | |
| CN109253301A (en) | A kind of high pressure valve and Integrated valve group | |
| CN202302054U (en) | Ahs discharge and conveying valve of gas dust removal system of blast furnace | |
| US1083467A (en) | Faucet. | |
| CN208951395U (en) | A kind of main operated pneumatic valve of Novel fire fighting apparatus | |
| CN208587553U (en) | A kind of solenoid valve with check-valves | |
| CN222316052U (en) | A pneumatically controlled gas safety valve | |
| US1062553A (en) | Automatic valve-controlling means. | |
| CN2517922Y (en) | Gas automatic stop socket valve | |
| CN110260153A (en) | A kind of safety angular valve of gas steel bottle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |