CN209115712U - A kind of explosion-proof gas valve - Google Patents
A kind of explosion-proof gas valve Download PDFInfo
- Publication number
- CN209115712U CN209115712U CN201821441355.4U CN201821441355U CN209115712U CN 209115712 U CN209115712 U CN 209115712U CN 201821441355 U CN201821441355 U CN 201821441355U CN 209115712 U CN209115712 U CN 209115712U
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- China
- Prior art keywords
- valve
- early warning
- explosion
- nut
- valve body
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Abstract
The utility model refers in particular to a kind of explosion-proof gas valve, belong to technical field of valve manufacturing, including valve body, valve ball and valve rod, the valve body is triple valve, one end is inlet end, and one end is outlet side, and the other end is closed by nut, beer valve and early warning lid are provided on the inlet end, the beer valve and early warning lid are separately positioned on the side wall of inlet end.The variation that air bag volume is covered by early warning judges whether the pressure of combustion gas in the pipeline of valve body connection is abnormal, reaches early warning effect, and intuitively reaction pressure what horizontal and state can be in extremely, timely makes safe handling.If gaseous-pressure is excessive, under safety condition, risk can be reduced by the timely exhaust pressure relief of beer valve.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, refers in particular to a kind of explosion-proof gas valve.
Background technique
Most common in coal gas or natural gas line is exactly gas valve, and the safety of leakage is caused due to gas valve
Problem often occurs between one's early years, and the security risk about leakage has caused the attention of height in valve industry, currently, normal
In the case where operation, valve has been able to accomplish No leakage.But if coal gas or gas pipe pressure exception, the influence of generation
It is also more serious than leaking, therefore to have enough guarantees in the technology of fuel gas transmission, meanwhile, end is being used, gas valve is also wanted
Get certain effect.Existing gas valve is mainly reminded using the mode of automatic alarm at explosion-proof aspect, such as
Fruit pressure is excessive, causes to leak, and the electric spark that automatic alarm device generates easily causes more serious consequence, so gas valve
Should have the function of decompression function and security alarm.
Summary of the invention
The purpose of the utility model is to provide a kind of explosion-proof gas valve with safe warning function.
Purpose of the utility model is realized as follows: a kind of explosion-proof gas valve, including valve body, valve ball and valve rod, it is described
Valve body is triple valve, and one end is inlet end, and one end is outlet side, and the other end is closed by nut, wherein is set on the inlet end
It is equipped with beer valve and early warning lid, the beer valve and early warning lid are separately positioned on the side wall of inlet end, gaseous-pressure in pipeline
When abnormal, early warning lid can early warning show, and pressure release is exhausted by beer valve under safety condition.
The side wall of the early warning lid and inlet end is spirally connected, and gas nozzle is provided on the end face of early warning lid, sets on the gas nozzle
It is equipped with air bag, when gaseous-pressure increases, air bag can expand, and may determine that pressure anomaly by the air bag of expansion, reach early warning
Effect.
Advanced optimize: the end of the valve rod is provided with handle, and the lower end of the handle is provided with half arc of limit, described
It is provided with retention bead on valve body, when the rotatable handle, half arc of the limit is acted in retention bead.
Advanced optimize: the handle rotation, when half arc of limit and retention bead contact, valve body is in close state；Limit
When half arc of position is separated with retention bead, valve body is in the open state.
Advanced optimize: the outlet side is provided with external connection pipe, and the external connection pipe is fixed on the end of outlet side by nut
On mouth.
Advanced optimize: wherein the port of Single port and outlet side is spirally connected the nut, and the another port of nut is provided with
One end of the port connection of necking baffle, the external connection pipe and outlet side is provided with ring flange, and the external connection pipe runs through nut, and
It is limited at necking baffle by ring flange.
Compared with the prior art, the utility model has prominent and beneficial technical effects that: covering the change of air bag volume by early warning
Change, judges whether the pressure of combustion gas in the pipeline of valve body connection is abnormal, reaches early warning effect, and being capable of intuitive reaction pressure
It is abnormal that horizontal and state be in, timely make safe handling.If gaseous-pressure is excessive, under safety condition, can lead to
The timely exhaust pressure relief of beer valve is crossed, risk is reduced.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion of the utility model；
Fig. 2 is the structural schematic diagram of the middle early warning lid of the utility model；
In figure: 1- valve body, 2- valve ball, 3- valve rod, 4- nut, 5- handle, 6- half arc of limit, 7- retention bead, 8- screw,
9- inlet end, the outlet side 10-, 11- beer valve, 12- early warning lid, 1201- air bag, 1202- gas nozzle, 13- external connection pipe, 1301- method
Blue disk, 14- nut, 1401- necking baffle, the external baffle of 15-, 16- attachment cap, 17- lock nut, 18- copper band, 19- sealing ring,
20- gasket, 21-O type circle.
Specific embodiment
The utility model is further described with specific embodiment with reference to the accompanying drawing, referring to Fig. 1-2: gas valve is made
For the terminal of combustion gas control, simply opening and closing function, the demand in market can no longer meet, consumer is in the mistake used
Cheng Zhong can not learn the state of gaseous-pressure, can generate a kind of psychological hint of not sense of security, so, the utility model exists
Some early warning and safeguard function are increased on the basis of existing gas valve.
A kind of explosion-proof gas valve, including valve body 1, valve ball 2 and valve rod 3, the valve body 1 are triple valve, and one end is inlet end
9, the port of inlet end 9 is provided with attachment cap 16, lock nut 17 and copper band 18, convenient to connect with gas pipeline；One end is outlet side
10, the other end is closed after installing valve ball 2 by nut 4, and the two sides of valve ball 2 are provided with sealing ring 19, the air inlet
It is provided with beer valve 11 and early warning lid 12 on end 9, the beer valve 11 and early warning lid 12 are separately positioned on the side wall of inlet end 9
On, in pipeline when gaseous-pressure exception, early warning lid 12 can early warning show, and arranged under safety condition by beer valve 11
Gas pressure release, beer valve 11 seal port by sealing cover under not enabled state.The side wall spiral shell of the early warning lid 12 and inlet end 9
It connects, and increases O-ring 21 therebetween, improve leakproofness, and be provided with gas nozzle 1202 on the end face of early warning lid 12, it is described
It is provided with air bag 1201 on gas nozzle 1202, is connected to air bag 1201 with valve body 1 by gas nozzle 1202, when gaseous-pressure increases, gas
Capsule 1201 can expand, and may determine that pressure anomaly by the air bag of expansion, achieve the effect that early warning, and air bag 1201 can be straight
The reaction pressure of sight is in any horizontal and state extremely, timely makes safe handling.If gaseous-pressure is excessive, in safety
Under the conditions of, risk can be reduced by the timely exhaust pressure relief of beer valve 11.
In terms of connecting outside gas valve: the end of the valve rod 3 is provided with handle 5, and handle 5 passes through screw 8 and valve rod
3 connections, the lower end of the handle 5 are provided with half arc 6 of limit, retention bead 7 are provided on the valve body 1, and the handle 5 rotates
When, half arc 6 of the limit acts in retention bead 7.The handle 5 rotates, when half arc 6 of limit is contacted with retention bead 7, valve
Body 1 is in close state；When limiting half arc 6 and separating with retention bead 7, valve body 1 is in the open state.
The outlet side 10 is provided with external connection pipe 13, and the external connection pipe 13 is fixed on the end of outlet side 10 by nut 14
On mouth.
Wherein the port of Single port and outlet side is spirally connected the nut 14, and the another port of nut 14 is provided with necking baffle
1401, one end that the external connection pipe 13 is connect with the port of outlet side is provided with ring flange 1301, and the other end is provided with external screw thread,
Convenient to connect with the connecting tube of gas-cooker, the external connection pipe 13 runs through nut 14, and is limited in necking gear by ring flange 1301
At piece 1401.The junction of external connection pipe 13 and outlet side 10, which increases, gasket 20, connect for convenience with the connecting tube of gas-cooker,
Connection baffle 15 is additionally provided on external connection pipe 13.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model
Within the scope of.
Claims (5)
1. a kind of explosion-proof gas valve, including valve body (1), valve ball (2) and valve rod (3), the valve body (1) is triple valve, and one end is
Inlet end (9), one end are outlet side (10), and the other end is closed by nut (4), it is characterised in that: is set on the inlet end (9)
It is equipped with beer valve (11) and early warning lid (12), the beer valve (11) and early warning lid (12) are separately positioned on the side of inlet end (9)
On wall；The early warning lid (12) and the side wall of inlet end (9) are spirally connected, and are provided with gas nozzle on the end face of early warning lid (12)
(1202), air bag (1201) are provided on the gas nozzle (1202).
2. explosion-proof gas valve according to claim 1, it is characterised in that: the end of the valve rod (3) is provided with handle
(5), the lower end of the handle (5) is provided with limit half arc (6), is provided with retention bead (7), the hand on the valve body (1)
When handle (5) rotates, half arc of the limit (6) is acted on retention bead (7).
3. explosion-proof gas valve according to claim 2, it is characterised in that: the handle (5) rotation, limit half arc (6) with
When retention bead (7) contacts, valve body (1) is in close state；When limiting half arc (6) and being separated with retention bead (7), valve body (1)
It is in the open state.
4. explosion-proof gas valve according to claim 1, it is characterised in that: the outlet side (10) is provided with external connection pipe
(13), the external connection pipe (13) is fixed on the port of outlet side (10) by nut (14).
5. explosion-proof gas valve according to claim 4, it is characterised in that: the nut (14) wherein Single port and outlet side
Port be spirally connected, the another port of nut (14) is provided with necking baffle (1401), the end of external connection pipe (13) and outlet side
One end of mouth connection is provided with ring flange (1301), and the external connection pipe (13) runs through nut (14), and passes through ring flange (1301)
It is limited at necking baffle (1401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821441355.4U CN209115712U (en) | 2018-09-04 | 2018-09-04 | A kind of explosion-proof gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821441355.4U CN209115712U (en) | 2018-09-04 | 2018-09-04 | A kind of explosion-proof gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115712U true CN209115712U (en) | 2019-07-16 |
Family
ID=67197938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821441355.4U Active CN209115712U (en) | 2018-09-04 | 2018-09-04 | A kind of explosion-proof gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145738A (en) * | 2020-10-13 | 2020-12-29 | 祁东中燃城市燃气发展有限公司 | Novel flow valve for gas delivery |
-
2018
- 2018-09-04 CN CN201821441355.4U patent/CN209115712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145738A (en) * | 2020-10-13 | 2020-12-29 | 祁东中燃城市燃气发展有限公司 | Novel flow valve for gas delivery |
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