CN109027349A - A kind of self-open and self-close's counterflow-preventing bivalve envelope shut-off valve - Google Patents
A kind of self-open and self-close's counterflow-preventing bivalve envelope shut-off valve Download PDFInfo
- Publication number
- CN109027349A CN109027349A CN201811229402.3A CN201811229402A CN109027349A CN 109027349 A CN109027349 A CN 109027349A CN 201811229402 A CN201811229402 A CN 201811229402A CN 109027349 A CN109027349 A CN 109027349A
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- Prior art keywords
- valve
- valve body
- self
- air inlet
- outlet
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- 238000005516 engineering process Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 78
- 238000010586 diagram Methods 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 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
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
-
- 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
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/196—Equalising valves predominantly for tanks spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of self-open and self-close's counterflow-preventing bivalves to seal shut-off valve, belongs to the valve-embedded security fields of gasometer of pipeline gas.Including valve body, the valve body includes the air inlet valve body and outlet valve body being fixedly connected, air inlet valve body is equipped with air inlet, outlet valve body is equipped with gas outlet, it is characterized in that being equipped with valve rod and fixed mechanism in valve body, valve rod both ends are fixed with air inlet jam pot cover and outlet jam pot cover respectively, and stem exterior is arranged with elastomeric element and fixed mechanism, the elastomeric element is set between air inlet jam pot cover and fixed mechanism, and the fixed mechanism is fixedly connected with the valve body.The present invention can be according to gas pressure automatic shutter; without being manually or electrically opened and closed; moreover, valve is always all in closed state when air inlet/outlet anti-loaded situation occurs in gas meter, flow meter; it can play the role of counterflow-preventing and anti-theft gaseous; in addition, shut-off valve is installed on inside gas meter, flow meter, play the role of good safeguard protection to gas; and structure is simple, is easy to implement.
Description
Technical field
The invention belongs to the valve-embedded security fields of gasometer of pipeline gas, and in particular to a kind of self-open and self-close's counterflow-preventing bivalve envelope
Shut-off valve.
Background technique
The existing control valve being built in gas meter, flow meter, is mostly electrically operated valve, only plays a part of to control gas consumption, rise not
To safety effect, when appearance leakage, fire or pipeline pressure are raised and lowered suddenly, often because valve closing is too late
When, and lead to consequence very serious.It is filled when gas meter, flow meter is counter, i.e., when air inlet becomes gas outlet, gas outlet becomes air inlet, combustion
Gas meter can ventilate, and user can just commonly use gas, but can not measure, and very big loss can be brought to gas enterprise.And existing valve
It is mounted on outside gas meter, flow meter, is connect by pipeline with gas meter, flow meter mostly, connecting interface is more, increases the risk of gas leakage.
Summary of the invention
For technical problem of the existing technology, the present invention provides a kind of self-open and self-close's counterflow-preventing bivalves to seal shut-off valve
Technical solution, be built in gas meter, flow meter, when can effectively avoid unexpected occur, normal switching-off is closed not in time or be unable to valve
The case where, the self-closing from closing of valve can be realized according to atmospheric pressure, greatly improve the safety with gas.
A kind of self-open and self-close's counterflow-preventing bivalve envelope shut-off valve, including valve body, the valve body include the air inlet being fixedly connected
Valve body and outlet valve body, air inlet valve body are equipped with air inlet, and outlet valve body is equipped with gas outlet, it is characterised in that is equipped in valve body
Valve rod and fixed mechanism, valve rod both ends are fixed with air inlet jam pot cover and outlet jam pot cover respectively, and stem exterior is arranged with elastomeric element
And fixed mechanism, the elastomeric element are set between air inlet jam pot cover and fixed mechanism, the fixed mechanism and the fixed company of valve body
It connects.
Further, the valve body is installed on inside gas meter, flow meter, and gas meter, flow meter is equipped with gas meter, flow meter air inlet, gas meter, flow meter goes out
Port and gas meter movement, air inlet valve body and gas meter movement cooperation are tightly connected, outlet valve body and the cooperation of gas meter, flow meter gas outlet
It is tightly connected.
Further, it is equipped with groove on the outside of the air inlet valve body and outlet valve end, sealing ring is installed in groove.
Further, technology groove is respectively equipped on the outside of the air inlet valve body and outlet valve end.
Further, the connection of the air inlet jam pot cover in the bivalve seal structure, outlet jam pot cover and valve rod is all detachable
Connection and clearance fit.
Further, described valve rod one end is equipped with elastomeric element baffle, and elastomeric element one end is connect with fixed mechanism, separately
One end is connect with elastomeric element baffle.
Further, the top of the fixed mechanism is tubular structure, is set in stem exterior.
Further, the elastomeric element is cylindroid helical-coil compression spring.
The present invention is respectively equipped with import jam pot cover and outlet jam pot cover at the both ends of valve rod, sets among import jam pot cover and fixed mechanism
There is spring, when pressure is higher or lower than spring design value, valve is automatically closed, when pressure is in spring setting value, at spring
In open state, without manually or electrically switch valve, moreover, when the anti-loaded situation of air inlet/outlet occurs in gas meter, flow meter, regardless of pipe
How road pressure changes, and under the double action of spring force and gas pressure, the intracorporal jam pot cover of intake valve is tightly pressed against intake valve
On mouth, make valve that all in closed state, counterflow-preventing and anti-theft gaseous can be played the role of always, in addition, shut-off valve is installed on
It inside gas meter, flow meter, is directly connect with gas meter movement, substitutes original outtake tube, reduce connecting interface, reduced combustion gas and let out
The danger of leakage plays the role of good safeguard protection to gas, and structure is simple, is easy to implement.This technology is pioneering for industry.
Detailed description of the invention
Fig. 1 is valve inlet close status diagram of the present invention；
Valve air inlet/outlet open state schematic diagram when Fig. 2 is normal pipeline pressure of the present invention；
Fig. 3 is present invention valve gas outlet closed mode schematic diagram in high pressure；
Fig. 4 is the schematic diagram that the present invention is installed in gas meter, flow meter；
Wherein: 1- air inlet valve body；2- air inlet jam pot cover；3- elastomeric element；4- outlet jam pot cover；5- outlet valve body；The gas outlet 6-；7- is solid
Determine mechanism；8- valve rod；9- elastomeric element baffle；10- air inlet；11- technology groove；12- sealing ring；13- gas meter, flow meter air inlet；
14- gas meter, flow meter gas outlet；15- gas meter movement.
Specific embodiment
With reference to the accompanying drawings of the specification, technical scheme is described further.
A kind of self-open and self-close's counterflow-preventing bivalve envelope shut-off valve, as shown in Figures 1 to 4, including valve body, valve body include intake valve
Body 1 and outlet valve body 5, air inlet valve body 1 are fixedly connected with outlet valve body 5 by screw, and a valve body cavity, air inlet valve body 1 are formed
It is equipped with air inlet 10, outlet valve body 5 is equipped with gas outlet 6.Valve body is installed on inside gas meter, flow meter, and gas meter, flow meter is equipped with gas meter, flow meter
Air inlet 13, gas meter, flow meter gas outlet 14 and gas meter movement 15, valve body are installed at the gas meter, flow meter gas outlet 14 in gas meter, flow meter, can use
For the outtake tube carried in gas meter, flow meter, and cooperates with gas meter movement 15 and be tightly connected, outlet valve body 5 and gas meter, flow meter gas outlet
14 cooperations are tightly connected.Valve rod 8 and fixed mechanism 7 are equipped in valve body, 8 both ends of valve rod are fixed with air inlet jam pot cover 2 respectively and go out
Air valve envelope 4,8 outer cover of valve rod are equipped with elastomeric element 3, and elastomeric element 3 can be spring, in the effect of gas pressure and spring force
Under, it can easily realize linkage.The connection of air inlet jam pot cover 2, outlet jam pot cover 4 and valve rod 8 is all to be detachably connected and clearance fit,
It when assembly, using the elasticity of rubber, is pressed directly into valve rod 8, after closing valve in place, position can be adjusted by a small margin automatically, it is ensured that
It is air tight.7 lower part of fixed mechanism is fixedly connected with the valve body, and top is tubular structure, is set in outside valve rod 8, guarantees that valve rod 8 can
To drive 4 horizontal movement of air inlet jam pot cover 2 and outlet jam pot cover.8 outside of valve rod is equipped with elastomeric element baffle close to 2 one end of air inlet jam pot cover
9,3 one end of elastomeric element is connect with fixed mechanism 7, and is set in outside tubular structure, and the other end and elastomeric element baffle 9 connect
It connects.By the design to elastomeric element 3, under gas with various pressure, carry out the opening and closing of autocontrol valve.
All there are three groove, two grooves put two O-ring seals respectively for air inlet valve body 1 and 5 end outer ring of outlet valve body
12, when installation, O-ring seal 12 is put on, is placed on gas meter movement 15, is fixed without screw, it is convenient and effectively anti-
Leak-stopping gas, it is easy for installation.Another groove is technology groove 11, not deformation when can make formed product, and can effectively avoid assembly
Deformation, to avoid leaking.Valve after the assembly is completed, covers upper O-shaped close on two grooves of air inlet valve body 1 and outlet valve body 5
Seal 12 is reloaded into gas meter, flow meter at gas meter, flow meter gas outlet 14, and air inlet valve body 1 and the cooperation of gas meter movement 15 are tightly connected, out
Air valve body 5 and the cooperation of gas meter, flow meter gas outlet 14 are tightly connected.
For design flexibility component 3 when gas pressure is less than 1kPa, gas pressure is less than spring force, cannot open air inlet jam pot cover
2, air inlet jam pot cover 2 is pressed on the air inlet 10 of air inlet valve body 1, and valve is closed in air inlet 10, as shown in Figure 1.
When gas pressure is greater than 1kPa and is less than 10kPa, gas pressure overcomes spring force, opens air inlet jam pot cover 2, valve
It opens, in pressure limit, pressure is bigger, and the unlatching of air inlet jam pot cover 2 is bigger, as shown in Figure 2.
When gas pressure is greater than 10kPa, gas pressure is much larger than spring force, and air outlet valve envelope 4 is made to be pressed in outlet valve body 5
On gas outlet 6, valve is closed at gas outlet 6, as shown in Figure 3.
It is filled when existing gas meter, flow meter is counter, i.e., gas meter, flow meter air inlet 13 becomes gas meter, flow meter gas outlet 14, and gas meter, flow meter gas outlet 14 becomes
When at air inlet 13, gas meter, flow meter can ventilate, and user can just commonly use gas.But if being mounted with the present apparatus, regardless of pipeline pressure
Variation, under the double action of spring force and gas pressure, the air inlet jam pot cover 2 in air inlet valve body 1 is tightly pressed against on intake valve port,
Make valve that all in closed state, counterflow-preventing and anti-theft gaseous can be played the role of always.Shut-off valve is installed on inside gas meter, flow meter,
It is directly connect with gas meter movement, substitutes original outtake tube, reduce connecting interface, reduce the danger of gas leakage.This
Technology is pioneering for industry.
Claims (8)
1. a kind of self-open and self-close's counterflow-preventing bivalve seals shut-off valve, including valve body, the valve body include the intake valve being fixedly connected
Body (1) and outlet valve body (5), air inlet valve body (1) are equipped with air inlet (10), and outlet valve body (5) is equipped with gas outlet (6),
It is characterized in that being equipped with valve rod (8) and fixed mechanism (7) in valve body, valve rod (8) both ends are fixed with air inlet jam pot cover (2) respectively and go out
Air valve seals (4), and valve rod (8) outer cover is equipped with elastomeric element (3) and fixed mechanism (7), and the elastomeric element (3) is set to air inlet
Between jam pot cover (2) and fixed mechanism (7), the fixed mechanism (7) is fixedly connected with the valve body.
2. a kind of self-open and self-close's counterflow-preventing bivalve according to claim 1 seals shut-off valve, it is characterised in that the valve body peace
Inside gas meter, flow meter, gas meter, flow meter is equipped with gas meter, flow meter air inlet (13), gas meter, flow meter gas outlet (14) and gas meter movement (15),
Air inlet valve body (1) and gas meter movement (15) cooperation are tightly connected, outlet valve body (5) and gas meter, flow meter gas outlet (14) cooperation sealing
Connection.
3. a kind of self-open and self-close's counterflow-preventing bivalve according to claim 1 seals shut-off valve, it is characterised in that air inlet valve body (1)
It is equipped with groove with outlet valve body (5) end outside, sealing ring (12) are installed in groove.
4. a kind of self-open and self-close's counterflow-preventing bivalve according to claim 1 seals shut-off valve, it is characterised in that air inlet valve body (1)
Technology groove (11) are respectively equipped with outlet valve body (5) end outside.
5. a kind of self-open and self-close's counterflow-preventing bivalve according to claim 1 seals shut-off valve, it is characterised in that bivalve seal structure
In the connection of air inlet jam pot cover (2), outlet jam pot cover (4) and valve rod (8) be all to be detachably connected and clearance fit.
6. a kind of self-open and self-close's counterflow-preventing bivalve according to claim 1 seals shut-off valve, it is characterised in that the valve rod
(8) one end is equipped with elastomeric element baffle (9), and elastomeric element (3) one end is connect with fixed mechanism (7), the other end and elastomeric element
Baffle (9) connection.
7. a kind of self-open and self-close's counterflow-preventing bivalve according to claim 1 seals shut-off valve, it is characterised in that the fixation
The top of mechanism (7) is tubular structure, and it is external to be set in valve rod (8).
8. a kind of -7 any self-open and self-close's counterflow-preventing bivalves seal shut-off valve according to claim 1, it is characterised in that described
Elastomeric element (3) be cylindroid helical-coil compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229402.3A CN109027349A (en) | 2018-10-22 | 2018-10-22 | A kind of self-open and self-close's counterflow-preventing bivalve envelope shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229402.3A CN109027349A (en) | 2018-10-22 | 2018-10-22 | A kind of self-open and self-close's counterflow-preventing bivalve envelope shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109027349A true CN109027349A (en) | 2018-12-18 |
Family
ID=64613630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811229402.3A Pending CN109027349A (en) | 2018-10-22 | 2018-10-22 | A kind of self-open and self-close's counterflow-preventing bivalve envelope shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109027349A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0161348A2 (en) * | 1984-05-15 | 1985-11-21 | Brian Tepsa | Gas fuse |
| US4811756A (en) * | 1987-04-10 | 1989-03-14 | Compair Power Tools Limited | Safety valve |
| US4911196A (en) * | 1989-01-03 | 1990-03-27 | Kemp Development Corporation | Inline check valve |
| CN200958641Y (en) * | 2006-09-30 | 2007-10-10 | 陈红 | Safety explosion-proof automatic valve |
| CN201837424U (en) * | 2010-07-12 | 2011-05-18 | 苗华利 | Anti-theft gas and anti-counterflow gas meter device |
| CN208919421U (en) * | 2018-10-22 | 2019-05-31 | 杭州先锋电子技术股份有限公司 | A kind of self-open and self-close's counterflow-preventing bivalve envelope shut-off valve |
-
2018
- 2018-10-22 CN CN201811229402.3A patent/CN109027349A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0161348A2 (en) * | 1984-05-15 | 1985-11-21 | Brian Tepsa | Gas fuse |
| US4811756A (en) * | 1987-04-10 | 1989-03-14 | Compair Power Tools Limited | Safety valve |
| US4911196A (en) * | 1989-01-03 | 1990-03-27 | Kemp Development Corporation | Inline check valve |
| CN200958641Y (en) * | 2006-09-30 | 2007-10-10 | 陈红 | Safety explosion-proof automatic valve |
| CN201837424U (en) * | 2010-07-12 | 2011-05-18 | 苗华利 | Anti-theft gas and anti-counterflow gas meter device |
| CN208919421U (en) * | 2018-10-22 | 2019-05-31 | 杭州先锋电子技术股份有限公司 | A kind of self-open and self-close's counterflow-preventing bivalve envelope shut-off valve |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |