CN206918643U - A kind of safety guard for preventing natural gas line superpressure - Google Patents
A kind of safety guard for preventing natural gas line superpressure Download PDFInfo
- Publication number
- CN206918643U CN206918643U CN201720812539.6U CN201720812539U CN206918643U CN 206918643 U CN206918643 U CN 206918643U CN 201720812539 U CN201720812539 U CN 201720812539U CN 206918643 U CN206918643 U CN 206918643U
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- China
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- natural gas
- gas line
- piston
- safety guard
- conducting strip
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Abstract
The utility model discloses a kind of safety guard for preventing natural gas line superpressure, including：Natural gas line；Control structure, it includes one end open and bottle with connect inside the natural gas line, the compression spring for being arranged on the piston of the bottle opening, being fixed on the piston between bottle top, the conducting strip, power supply and the positive electrode and negative electrode directly over conducting strip that are arranged on upper piston area；Exhaust structure, it is included by another described through hole and the magnetic valve connected inside natural gas line, the check valve connected with the exhaust outlet of the magnetic valve；When natural gas line internal pressure it is powerful in 0.78MP when, piston upwards until conducting strip simultaneously contacted with the positive electrode and negative electrode.A kind of safety guard for preventing natural gas line superpressure provided by the utility model, its pressure control is stable, solves many potential safety hazards, comprehensive rapidly can be discharged gases at high pressure during pressure regulation.
Description
Technical field
Natural gas field is the utility model is related to, more specifically, the utility model is related to one kind prevents natural gas line
The safety guard of superpressure.
Background technology
In current domestic pipeline gas transmission, pressure regulator is the core of system, and its safe operation is directly connected to thousand
The security of the lives and property at ten thousand families, the pressure regulator of user front end is especially in, its security is more particularly important.It is wide at present
The general direct acting type pressure regulator used, their regulator and safety guard are discrete, and its maximum weakness is
Shutoff signal is obtained by signal pipe from gas pipeline.Because signal pipe is arranged on the outside of pressure regulator, and pressure regulator is installed
Out of doors, therefore, this safety guard is easily destroyed by external force in the process of running, and then is brought to regulator
Great potential safety hazard.
Secondly, direct acting type (self-operated type) pressure regulator run at present, in gas line network because tubular service or pipeline change
When the reason such as making needs to stop the supple of gas or steam, pressure regulator causes pressure regulation valve port to be in the shape fully opened because of the pressure effect of no source of the gas
State, when ventilating again, pressure regulator will resume operation automatically, and many users stop the supple of gas or steam occur when because forgetting closing burner valve
Or midway is opened valve and is not turned off, gas leakage can be caused when pipeline recovers and ventilated, and then trigger catastrophic failure.
In addition, pressing nearly family in occurring due to the failure of voltage-regulating system during equipment supply, gas meter, flow meter is set to explode, this is same
Sample can bring high risks to user.
According to foregoing description, there is provided it is a kind of without signal pipe transmit signal just can automatic Regulation superpressure safeguard protection dress
Put, be the technical problem for being badly in need of in the industry solving now.
Utility model content
A purpose of the present utility model is that solve at least the above, and provides the advantages of at least will be described later.
To achieve these goals, the utility model provides a kind of safeguard protection for preventing natural gas line superpressure and filled
Put, including：
Side wall has the natural gas line of two through holes；
Control structure, it is arranged on outside natural gas line, and the control structure includes one end open and opened by described
Mouthful and one of them described through hole and the natural gas line inside connect bottle, be arranged on the work of the bottle opening
Fill in, be fixed at the top of the piston and the bottle between compression spring, be arranged on the conducting strip of the upper piston area, set
The bottle side power supply and be fixed at the top of the bottle and positive electrode directly over the conducting strip and negative
Electrode；
Exhaust structure, it is arranged on outside the natural gas line, and the exhaust structure includes described logical by another
The magnetic valve that is connected inside hole and the natural gas line, the check valve connected with the exhaust outlet of the magnetic valve and with it is described
The Gas diffusion pipe of the exhaust outlet connection of check valve；
It is electrically connected between the power supply, positive electrode, negative electrode and magnetic valve；
When natural gas line internal pressure it is powerful in 0.78MP when, the piston upwards until the conducting strip simultaneously with institute
State positive electrode and negative electrode contact.
Preferably, several steam vents, and the diameter of the steam vent are provided with the Gas diffusion pipe side wall
Less than 3mm.
Preferably, the conducting strip is fixed on the piston by felt pad.
Preferably, the diameter of described two through holes is 8-15mm.
Preferably, the piston is made up of high density rubber, and has a diameter larger than the diameter of the bottle.
Preferably, the distance between the positive electrode and the negative electrode are less than the length of the conducting strip.
The utility model comprises at least following beneficial effect：
1st, a kind of safety guard for preventing natural gas line superpressure described in the utility model, it uses mechanical structure
Control pressure is detected, improves the stability of pressure control structure, does not avoid conventional security protection device because of signal Transmission or not
Stable and caused potential safety hazard.
2nd, a kind of safety guard for preventing natural gas line superpressure described in the utility model, it is provided with electromagnetism
Valve, valve can be closed or opened automatically, avoid the gas leakage caused by forgetting to close burner valve and then trigger the accident of fire.
3rd, a kind of safety guard for preventing natural gas line superpressure described in the utility model, it expands provided with natural gas
Separate tube, comprehensive rapidly gases at high pressure can be discharged during pressure regulation.
Further advantage, target and feature of the present utility model embody part by following explanation, and part will also pass through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structural representation of the safety guard described in the utility model for preventing natural gas line superpressure.
1, natural gas line in figure, 2, bottle, 3, power supply, 4, magnetic valve, 5, check valve, 6, Gas diffusion pipe, 7, just
Electrode, 8, compression spring, 9, piston, 10, conducting strip, 11, felt pad.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the utility model, to make people in the art
Member can implement according to this with reference to specification word.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded from one or more
The presence or addition of individual other elements or its combination.
As shown in figure 1, a kind of peace for preventing natural gas line superpressure is provided in the one of embodiment of the utility model
Full protection device, including：
Side wall has the natural gas line 1 of two through holes；
Control structure, it is arranged on outside natural gas line 1, and the control structure includes one end open and opened by described
Mouthful and one of them described through hole with connected inside the natural gas line 1 bottle 2, be arranged on the opening of bottle 2
Piston 9, the compression spring 8 being fixed between the piston 9 and the top of the bottle 2, the conduction for being arranged on the top of piston 9
Piece 10, the power supply 3 for being arranged on the side of bottle 2 and be fixed on the top of the bottle 2 and positioned at the conducting strip 10 just on
The positive electrode 7 and negative electrode of side；
Exhaust structure, it is arranged on outside the natural gas line 1, and the exhaust structure includes described logical by another
Magnetic valve 4 that hole connects with the inside of the natural gas line 1, the check valve 5 connected with the exhaust outlet of the magnetic valve 4 and with
The Gas diffusion pipe 6 of the exhaust outlet connection of the check valve 5；
It is electrically connected between the power supply 3, positive electrode 7, negative electrode and magnetic valve 4；
When the internal pressure of natural gas line 1 it is powerful in 0.78MP when, the piston 9 upwards motion until the conducting strip 10 simultaneously
Contacted with the positive electrode 7 and negative electrode.
Further, several steam vents, and the diameter of the steam vent are provided with the side wall of Gas diffusion pipe 6
Less than 3mm.
Further, the conducting strip 10 is fixed on the piston 9 by felt pad 11.
Further, the diameter of described two through holes is 8-15mm.
Further, the piston 9 is made up of high density rubber, and its diameter is identical with the diameter of the bottle 2.
Further, the distance between the positive electrode 7 and the negative electrode are less than the length of the conducting strip 10.
According to foregoing description, as pressure raises in the natural gas line 1, the piston 9 is acted on by natural gas
Power and move up, so as to drive the conducting strip 10 to move up, until the natural gas line 1 in pressure reach
During 0.78MP, the conducting strip 10 contacts simultaneously with the positive electrode 7 and negative electrode, so as to connect circuit, now, the electromagnetism
Valve 4 is opened, and over-pressure gas is passed sequentially through the magnetic valve 4, check valve 5 and Gas diffusion pipe 6 and is discharged natural gas line 1；
After gases at high pressure discharge is a certain amount of, pressure is gradually less than 0.78MP in the natural gas line 1, and now, the piston 9 is being pressed
Slowly moved down under the active force of contracting spring 8 so that the conducting strip 10 separates with the positive electrode 7 and negative electrode, make electricity
Road is disconnected, and then magnetic valve 4 is closed, and stops exhaust.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (6)
- A kind of 1. safety guard for preventing natural gas line superpressure, it is characterised in that including：Side wall has the natural gas line of two through holes；Control structure, it is arranged on outside natural gas line, the control structure include one end open and by it is described opening and The bottle that connect inside one of them described through hole and the natural gas line, it is arranged on the piston of the bottle opening, consolidates The compression spring between the piston and bottle top is scheduled on, the conducting strip of the upper piston area is arranged on, is arranged on institute State the power supply of bottle side and be fixed on the bottle top and positive electrode and negative electrode directly over the conducting strip；Exhaust structure, it is arranged on outside the natural gas line, the exhaust structure include by another described through hole with The magnetic valve of connection inside the natural gas line, the check valve connected with the exhaust outlet of the magnetic valve and with it is described unidirectionally The Gas diffusion pipe of the exhaust outlet connection of valve；It is electrically connected between the power supply, positive electrode, negative electrode and magnetic valve；When natural gas line internal pressure it is powerful in 0.78MP when, the piston upwards until the conducting strip simultaneously with it is described just Electrode and negative electrode contact.
- 2. a kind of safety guard for preventing natural gas line superpressure according to claim 1, it is characterised in that described Several steam vents are provided with Gas diffusion pipe side wall, and the diameter of the steam vent is less than 3mm.
- 3. a kind of safety guard for preventing natural gas line superpressure according to claim 1, it is characterised in that described Conducting strip is fixed on the piston by felt pad.
- 4. a kind of safety guard for preventing natural gas line superpressure according to claim 1, it is characterised in that described The diameter of two through holes is 8-15mm.
- 5. a kind of safety guard for preventing natural gas line superpressure according to claim 1, it is characterised in that described Piston is made up of high density rubber, and has a diameter larger than the diameter of the bottle.
- 6. a kind of safety guard for preventing natural gas line superpressure according to claim 1, it is characterised in that described The distance between positive electrode and the negative electrode are less than the length of the conducting strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720812539.6U CN206918643U (en) | 2017-07-06 | 2017-07-06 | A kind of safety guard for preventing natural gas line superpressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720812539.6U CN206918643U (en) | 2017-07-06 | 2017-07-06 | A kind of safety guard for preventing natural gas line superpressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206918643U true CN206918643U (en) | 2018-01-23 |
Family
ID=61335714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720812539.6U Active CN206918643U (en) | 2017-07-06 | 2017-07-06 | A kind of safety guard for preventing natural gas line superpressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206918643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271607A (en) * | 2020-01-19 | 2020-06-12 | 北京北方华创微电子装备有限公司 | Overvoltage protection device and method for semiconductor equipment and abnormality detection method |
| CN114135792A (en) * | 2021-11-23 | 2022-03-04 | 江西省天然气管道有限公司运营分公司 | Natural gas pipeline conveying system with pressure regulating function |
-
2017
- 2017-07-06 CN CN201720812539.6U patent/CN206918643U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271607A (en) * | 2020-01-19 | 2020-06-12 | 北京北方华创微电子装备有限公司 | Overvoltage protection device and method for semiconductor equipment and abnormality detection method |
| CN114135792A (en) * | 2021-11-23 | 2022-03-04 | 江西省天然气管道有限公司运营分公司 | Natural gas pipeline conveying system with pressure regulating function |
| CN114135792B (en) * | 2021-11-23 | 2024-01-23 | 江西省天然气管道有限公司运营分公司 | Natural gas pipeline conveying system with pressure regulating function |
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