CN103438256A - Gas safety valve - Google Patents
Gas safety valve Download PDFInfo
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- CN103438256A CN103438256A CN201310350811XA CN201310350811A CN103438256A CN 103438256 A CN103438256 A CN 103438256A CN 201310350811X A CN201310350811X A CN 201310350811XA CN 201310350811 A CN201310350811 A CN 201310350811A CN 103438256 A CN103438256 A CN 103438256A
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Abstract
The invention relates to a gas safety valve, which comprises a hollow valve body, a pressure detecting unit, a control unit, a closed shaft sleeve and an opening device, wherein the valve body is provided with a gas inlet and a gas outlet , a lug boss is arranged in the middle position in the valve body, one side of the lug boss is provided with a detecting opening communicated with the external space, a detecting cavity is arranged in the lug boss, the closed shaft sleeve is embedded into the lug boss for forming a closed opening, the outer edge of the closed opening of the closed shaft sleeve is provided with a flange, a plurality of detecting through holes in interval arrangement are formed in the flange in the circumferential direction, a hollow copper sleeve is embedded in each detecting through hole, a through hole of the hollow copper sleeve is communicated with the detecting cavity, and the opening device carries out opening and closing operation on the closed opening. The gas safety valve has the advantages that safety and reliability are realized, the closing is tight, dangerous situations such as untight closing, closing forgetting and flame extinguishing can be effectively prevented, and the problem of personal and property safety caused by the leakage problem is solved.
Description
Technical field
The present invention relates to the combustion gas operation technique field of family expenses, relate in particular to a kind of safe and reliable safety valves for gas.
Background technique
Along with the economic construction of China is more and more faster, requirement to safety is also more and more higher, since the eighties in 20th century, a large amount of city dwellers bring into use gas-tank, and gas-tank has become the kitchen landscape of uniqueness together, and life staying idle at home often uses liquid coal gas now, and valve is the controlling component in fluid delivery system, for the valve of liquid control system, from the simplest stop valve to very complicated robot control system(RCS) various valves used, its kind and specification are quite various.Valve can be used for controlling flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium, valve classification as combustion gas, also can be divided into cast iron valve according to material, cast steel valve, stainless valve, Cr-Mo steel valve, the Chrominm-molybdenum-vanadium steel valve, the dual phase steel valve, Plastic valve, the nonstandard customized valve material that waits.
For coal gas, the valve opened and closed is extremely important, not only controlling the switch of tank body, and bearing the important mission that prevents gas leak, and in family, gas poisoning mainly refers to that carbon monoxide poisoning, liquefied petroleum gas (LPG), piped gas, rock gas are poisoning, the former is more common in and uses coal stove for heating winter, and door and window closes, discharge fume when bad, the latter is common in that the liquefaction kitchen range are sewed or gas pipe line is sewed etc.The coal gas easily hemoglobin in human body is combined.During gas poisoning, patient's initial feel is headache, dizzy, nauseating, vomiting, weak and feeble, when he recognizes when poisoning, normal struggle is left the bed and is opened the door, windows, but generally only there are minority of peoples can open door, most patients is taken out rapidly convulsion, stupor, two cheeks, shirtfront skin and lip are cherry-red, as treatment not in time, can very fast respiration inhibition and death.
Existing gas valve mostly is manually, easily causes valve closing not tight, and forget and close, the danger situation such as putting out flare of heating up water, thus be necessary to provide a kind of safety gas tank valve switch gear, to solve the existing problem of prior art.
For this reason, artificer of the present invention, by concentrating on studies and designing, comprehensively is engaged in for a long time experience and the achievement of related industry for many years, and research and design goes out a kind of safety valves for gas, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of fuel gas safety valve, it is safe and reliable, and tight close can effectively prevent from being not closed completely, and forgets and closes, and flare such as is extinguished at the dangerous situation, overcomes the person and property safety problem that above-mentioned leakage problem causes.
For achieving the above object, the invention discloses a kind of safety valves for gas, the valve body that comprises hollow, described valve body has suction port and air outlet, and the neutral position in described valve body has boss, it is characterized in that:
One side of described boss is provided with the detection mouth of a connection space outerpace, has a test chamber in boss, detects between mouth and test chamber and is communicated with by a sense channel;
One pressure sensing cell, described pressure sensing cell is connected to described detection mouthful by pipeline, and described pressure sensing cell also is connected to described control unit;
One closed axle sleeve, described closed axle sleeve embeds in described boss to form one closed mouthful, the closed mouthful outer rim of described closed axle sleeve is provided with flange, described flange leans at described boss, on described flange, edge circumferentially has a plurality of spaced detection through holes, each described detection through hole has been embedded in the hollow copper sheathing, and the through hole of described hollow copper sheathing is communicated with described test chamber;
One opening device, described opening device carries out opening and closing operations to described closed mouth.
Wherein: described control unit is provided with display screen and alarm.
Wherein: described display screen is the digital display screen, and described alarm is at least one of voice guard and light crossing-signal.
Wherein: each detects between through hole and is provided with communication groove, is provided with O type O-ring seal in communication groove and sense channel.
Wherein: described opening device comprises the rotating shaft of being located on boss, described rotating shaft is rotatable to be supported on described boss, one drive motor is connected to described rotating shaft by transmission device, one pallet, one end is connected to described rotating shaft 1 with its rotation, and the other end connects a continuous motion stem, and described continuous motion stem is provided with retaining plate in an end of pallet 53, the other end is provided with pressing plate, and one covers the sealing gasket of closed mouthful of described closed axle sleeve and flange between retaining plate and pressing plate.
Wherein: be provided with the first elastic component between described pallet and described retaining plate, be provided with the second elastic component between described pressing plate and sealing gasket, described retaining plate and described sealing gasket are mutually against airtight to carry out reliably, and the centre of described sealing gasket is provided with vent.
Wherein: described the first elastic component is the rigidity elastic component, and described the second elastic component is stage clip.
By said structure, of the present inventionly realized following technique effect:
(1) the present invention controls by drive unit, realizes to rough gas cut-out fully fast and safely, and cut-off valve is without bonding phenomenon, the work that whole device can be reliably and with long-term.
(2) understand in time gaseous state by warning device, avoid unnecessary unlatching and leakage, guarantee safety.
(3) open and close smoothness, be difficult for stopping up;
(4) can be applicable to the cut-out safely and fast of rough gas system and other visceral-qi systems, can generally be applicable on all types of industries producer gas and other visceral-qi body pipeline.
The present invention will be further described in detail by the following specific embodiments, and will be more apparent and obvious to understand further combined with the description of the drawings.
The accompanying drawing explanation
Fig. 1 has shown the structural representation of safety valves for gas of the present invention.
Fig. 2 has shown the structural representation of safety alarm device of the present invention.
Fig. 3 has shown that the present invention seals the schematic diagram at position.
Reference character:
1: suction port; 2: air outlet; 3: boss; 31: detect mouth; 32: test chamber; 33: sense channel; 4: closed axle sleeve; 41: closed mouthful; 42: flange; 43: O-ring seal; 44: copper sheathing; 5: opening device; 51: rotating shaft; 52: drive motor; 53: pallet; 54: the first elastic components; 55: pressing plate; 56: the second elastic components; 57: sealing gasket; 58: continuous motion stem; 59: retaining plate; 6: pressure sensing cell; 7 control units.
Embodiment
Referring to Fig. 1-3, shown safety valves for gas of the present invention.
The valve body that described safety valve comprises hollow, described valve body has suction port 1 and air outlet 2, neutral position in described valve body has boss 3, one side of described boss 3 is provided with the detection mouth 31 of a connection space outerpace, there is a test chamber 32 in boss 3, detect between mouth 31 and test chamber 32 and be communicated with by a sense channel 33.
One pressure sensing cell 6, described pressure sensing cell 6 is connected to described detection mouthful by pipeline, described pressure sensing cell 6 also is connected to described control unit 7, described control unit 7 is provided with display screen and alarm, optionally, described display screen is the digital display screen, and described alarm can be at least one of voice guard and light crossing-signal.
One closed axle sleeve 4, described closed axle sleeve 4 embeds in described boss 3 to form one closed mouthful 41, closed mouthful 41 outer rims of described closed axle sleeve 4 are provided with flange 42, described flange 42 leans on described boss 3, referring to Fig. 3, on described flange 42, edge circumferentially has a plurality of spaced detection through holes, each described detection through hole has been embedded in hollow copper sheathing 44, the through hole of described hollow copper sheathing 44 is communicated with described test chamber 33, thus, described pressure sensing cell can be communicated with in valve body by hollow copper sheathing 44, to detect in time the gaseous-pressure in valve body, and the gaseous-pressure value in valve body is sent to described control unit.
Optionally, described respectively the detection between through hole is provided with communication groove, is provided with O type O-ring seal in communication groove and sense channel, and referring to Fig. 2, described O type O-ring seal arranges around described hollow copper sheathing 44.
One opening device 5, described opening device 5 is controllable carries out opening and closing operations to described closed mouthful 41.
Referring to Fig. 1, the wherein a kind of structure that has shown opening device 5, described opening device 5 comprises the rotating shaft 51 of being located on boss 3, described rotating shaft 51 is rotatable to be supported on described boss 3, one drive motor 52 is connected to described rotating shaft 51 by transmission device, thus, but 52 drive shafts 51 rotations of described drive motor, and described control unit 7 is electrically connected to described drive motor 52 to control its rotation.
One pallet 53, one end is connected to described rotating shaft 51 with its rotation, the other end connects a continuous motion stem 58, described continuous motion stem 58 is provided with retaining plate 59 in an end of pallet 53, the other end is provided with pressing plate 55, one covers the sealing gasket 57 of closed mouthful 41 of described closed axle sleeve 4 and flange 42 between retaining plate 59 and pressing plate 55, be provided with the first elastic component 54 between described pallet 53 and described retaining plate 59, be provided with the second elastic component 56 between described pressing plate 55 and sealing gasket 57, thus, described retaining plate 59 and described sealing gasket 57 are mutually against airtight to carry out reliably, and the centre of described sealing gasket 57 is provided with vent, preferably, described the first elastic component 54 is the rigidity elastic component, it is the little rubber pad of dilatability etc., described the second elastic component 56 is stage clip.
Below specifically describe working procedure of the present invention.
When the combustion gas closed state, control unit is controlled motor and is not started, sealing gasket is sealed closed mouthful, pressure sensing cell can not detect gas pressure, once leak, will between sealing gasket and closed mouth, produce gap, and pressure sensing cell can be reported to the police after lasting gas pressure being detected, the motor of control unit control simultaneously carries out closed procedure, and sealing gasket is moved downward with airtight described closed mouthful.
In the combustion gas opening state, described control unit is controlled electric motor starting, the described rotating shaft of driven by motor rotates up, described pallet drives retaining plate 59 motions simultaneously, and sealing gasket is due to the two ends gas pressure, still be resisted against closed mouthful in the incipient stage, although pressing plate moves down simultaneously, effect by the second elastic component produces the power of a unlatching to sealing gasket, if but the power of this unlatching is not enough to overcome the power that the different air pressure in two ends produces, can not push sealing gasket open, and along with the motion of retaining plate, retaining plate breaks away from described sealing gasket, cause gas to enter opposite side by the vent of sealing gasket, when the gas pressure of both sides balance gradually, it is poor that the elastic force of the second elastic component can overcome pressure at two ends, drive described sealing gasket to leave closed mouthful, thereby thorough open closed mouth, the two ends of safety valve are communicated with, can reliably remain closed like this opening and closing operation of mouth, make the motion of valve more smooth.
As can be seen here, the present invention has following advantage:
(1) the present invention controls by drive unit, realizes to rough gas cut-out fully fast and safely, and cut-off valve is without bonding phenomenon, the work that whole device can be reliably and with long-term.
(2) understand in time gaseous state by warning device, avoid unnecessary unlatching and leakage, guarantee safety.
(3) open and close smoothness, be difficult for stopping up;
(4) can be applicable to the cut-out safely and fast of rough gas system and other visceral-qi systems, can generally be applicable on all types of industries producer gas and other visceral-qi body pipeline.
It is evident that, above description and record are only for example rather than in order to limit disclosure of the present invention, application or use.Although described in an embodiment and be described in the drawings embodiment, but the optimal mode that the present invention does not limit by the accompanying drawing example and the conduct of describing is in an embodiment thought at present to be to implement the specific examples of instruction of the present invention, scope of the present invention will comprise any embodiment of the specification that falls into front and appended claim.
Claims (7)
1. a safety valves for gas, the valve body that comprises hollow, described valve body has suction port and air outlet, and the neutral position in described valve body has boss, it is characterized in that:
One side of described boss is provided with the detection mouth of a connection space outerpace, has a test chamber in boss, detects between mouth and test chamber and is communicated with by a sense channel;
One pressure sensing cell, described pressure sensing cell is connected to described detection mouthful by pipeline, and described pressure sensing cell also is connected to described control unit;
One closed axle sleeve, described closed axle sleeve embeds in described boss to form one closed mouthful, the closed mouthful outer rim of described closed axle sleeve is provided with flange, described flange leans at described boss, on described flange, edge circumferentially has a plurality of spaced detection through holes, each described detection through hole has been embedded in the hollow copper sheathing, and the through hole of described hollow copper sheathing is communicated with described test chamber;
One opening device, described opening device carries out opening and closing operations to described closed mouth.
2. safety valves for gas as claimed in claim 1, it is characterized in that: described control unit is provided with display screen and alarm.
3. safety valves for gas as claimed in claim 2 is characterized in that: described display screen is the digital display screen, and described alarm is at least one of voice guard and light crossing-signal.
4. safety valves for gas as claimed in claim 1, it is characterized in that: each detects between through hole and is provided with communication groove, is provided with O type O-ring seal in communication groove and sense channel.
5. safety valves for gas as claimed in claim 1, it is characterized in that: described opening device comprises the rotating shaft of being located on boss, described rotating shaft is rotatable to be supported on described boss, one drive motor is connected to described rotating shaft by transmission device, one pallet, one end is connected to described rotating shaft 1 with its rotation, the other end connects a continuous motion stem, described continuous motion stem is provided with retaining plate in an end of pallet 53, the other end is provided with pressing plate, and one covers the sealing gasket of closed mouthful of described closed axle sleeve and flange between retaining plate and pressing plate.
6. safety valves for gas as claimed in claim 5, it is characterized in that: between described pallet and described retaining plate, be provided with the first elastic component, be provided with the second elastic component between described pressing plate and sealing gasket, described retaining plate and described sealing gasket are mutually against airtight to carry out reliably, and the centre of described sealing gasket is provided with vent.
7. safety valves for gas as claimed in claim 6, it is characterized in that: described the first elastic component is the rigidity elastic component, described the second elastic component is stage clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350811.XA CN103438256B (en) | 2013-08-13 | 2013-08-13 | Gas safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350811.XA CN103438256B (en) | 2013-08-13 | 2013-08-13 | Gas safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103438256A true CN103438256A (en) | 2013-12-11 |
| CN103438256B CN103438256B (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310350811.XA Active CN103438256B (en) | 2013-08-13 | 2013-08-13 | Gas safety valve |
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| Country | Link |
|---|---|
| CN (1) | CN103438256B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221693Y (en) * | 1995-07-06 | 1996-03-06 | 高广兴 | Gas safety valve |
| US5520209A (en) * | 1993-12-03 | 1996-05-28 | The Dow Chemical Company | Fluid relief device |
| JPH08271297A (en) * | 1995-03-31 | 1996-10-18 | Tokyo Gas Co Ltd | Detecting equipment of gas leakage |
| CN2484443Y (en) * | 2001-03-19 | 2002-04-03 | 庄嘉信 | Automatic overheat interruption valve (I) |
| CN201269343Y (en) * | 2008-09-26 | 2009-07-08 | 张成祥 | Straight through type electromagnetic cut-off valve |
-
2013
- 2013-08-13 CN CN201310350811.XA patent/CN103438256B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5520209A (en) * | 1993-12-03 | 1996-05-28 | The Dow Chemical Company | Fluid relief device |
| JPH08271297A (en) * | 1995-03-31 | 1996-10-18 | Tokyo Gas Co Ltd | Detecting equipment of gas leakage |
| CN2221693Y (en) * | 1995-07-06 | 1996-03-06 | 高广兴 | Gas safety valve |
| CN2484443Y (en) * | 2001-03-19 | 2002-04-03 | 庄嘉信 | Automatic overheat interruption valve (I) |
| CN201269343Y (en) * | 2008-09-26 | 2009-07-08 | 张成祥 | Straight through type electromagnetic cut-off valve |
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| Publication number | Publication date |
|---|---|
| CN103438256B (en) | 2015-06-24 |
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