CN203082330U - Remote control system of self-operated shut-off valve - Google Patents
Remote control system of self-operated shut-off valve Download PDFInfo
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- CN203082330U CN203082330U CN 201320068207 CN201320068207U CN203082330U CN 203082330 U CN203082330 U CN 203082330U CN 201320068207 CN201320068207 CN 201320068207 CN 201320068207 U CN201320068207 U CN 201320068207U CN 203082330 U CN203082330 U CN 203082330U
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Abstract
The utility model discloses a remote control system of a self-operated shut-off valve. The system comprises a remote shut-off director, a normally closed solenoid valve and a self-operated shut-off valve connected between an upstream pipe and a downstream pipe, wherein the remote cut-off director comprises a pressure stabilizer and a pressure regulator; the self-operated shut-off valve is provided with a shut-off valve actuating element which cooperates with the remote shut-off director to cause the self-operated shut-off valve to be turned on or off; the shut-off valve actuating element is provided with a first air pressure input port and a second air pressure input port; the first air pressure input port is communicated with an air pressure output end of the pressure regulator; the second air pressure input port is connected with the normally closed solenoid valve and then communicated with an air pressure output end of the pressure stabilizer; and an air pressure input end of the pressure stabilizer is communicated with the downstream pipe. By adopting the remote control system, the function of automatic remote shut-off or manual remote shut-off when fault occurs can be achieved, the shut off is sensitive, and the personal safety of working personnel is protected.
Description
Technical field
The utility model relates to a kind of tele-control system of self-powering type cut-off valve, belongs to the field of intelligent control of gas transmission and distribution system.
Background technique
At present, used cut-off valve mostly is self-powering type greatly in the combustion gas transporting system of using now, itself does not possess the function of telecontrol, but swim out of existing accident instantly or other situations are (on fire as voltage regulating station, outage or other natural disasteies etc.) when needing emergency cut-off, the attendant can not in time respond, in addition, though there are some technology neither be very perfect at telecontrol, as on existing cut-off valve, passing through to use the two-bit triplet solenoid valve, one the tunnel connects with the cut-off valve upstream pressure, one the tunnel connects with downstream pressure, phase place by switching solenoid valve is controlled cut-off valve, has done two big defectives like this: 1, the working principle of cut-off valve is when downstream pressure surpasses cut-out pressure, and cut-off valve cuts off.Cut-out pressure is (the requiring minimum 1.1 times of also wanting operating pressure of cut-out pressure in the combustion gas design code) that will be higher than the downstream operating pressure, and pressure reduction is less when upstream and downstream, and repairing appears in the method in the downstream, when accident etc. need emergency cut-off, possibly can't realize; 2, the maximum pressure of the general long-distance transport pipes of present domestic combustion gas can reach 10MPa, and the pressure of use terminals such as the gas range that the arrival user uses, water heater has only about 2KPa, the pressure of cut-off valve upstream and downstream also very big gap can occur, the method all has higher requirements to solenoid valve and cut-off valve induction cavity, should satisfy the safety of high-pressure situations, satisfy the precision of low pressure situation again, the solenoid valve that existing technology is selected for use need bear high pressure, the cost height, safety coefficient is low; The cut-off valve induction cavity is a piston type, and sensitivity reduces, and it is not high to cut off precision.
Along with the attention of people to energy consumption and environmental pollution, the application of rock gas is more and more wider, and when gas transmission and distribution system was perfect day by day at home, safety had become important link of transmission ﹠ distribution process.Cut-off valve is as safety installation main in the gas transmission and distribution system, and its significant feature is the monitoring downstream pressure, because fault raises when reaching cut-out pressure, and cut-off valve cuts out, protects the safety of upstream device when downstream pressure.But along with the raising of intellectuality and Security, the cut-off valve of simple self-powering type has not satisfied use.Current pressure governor, modulating valve has all been realized the function of telecontrol, the telecontrol of cut-off valve is given birth to thereupon.At the significance level of cut-off valve in safety protection, prior art can't satisfy the utilization of various operating modes and various fortuitous events.
Summary of the invention
Technical problem to be solved in the utility model is the defective that overcomes prior art; a kind of tele-control system of self-powering type cut-off valve is provided; automatic remote cut off or artificial long-range cut-out function when it can realize breaking down, and cut off personal safety sensitive, that protected the staff.
In order to solve the problems of the technologies described above, first kind of technological scheme of the present utility model is: a kind of tele-control system of self-powering type cut-off valve, it comprises long-range cut-out pilot valve, normally closed solenoid valve and be connected upstream line and downstream line between the self-powering type cut-off valve, long-range cut-out pilot valve comprises voltage stabilizer and pressure governor, the self-powering type cut-off valve is provided with long-range cut-out pilot valve and cooperates to realize self-powering type cut-off valve conducting or the cut-off valve executive component of cutting out, have the first air pressure inlet opening and the second air pressure inlet opening on the cut-off valve executive component, the first air pressure inlet opening is communicated with the air pressure output terminal of pressure governor, the second air pressure inlet opening is communicated with the air pressure output terminal of voltage stabilizer after connecting normally closed solenoid valve, and the air pressure input end of voltage stabilizer is communicated with downstream line.
Further, described pressure governor and the voltage stabilizer formula structure that becomes one, and the air pressure input end of pressure governor is connected with another air pressure output terminal of voltage stabilizer.
Further, have the 3rd air pressure inlet opening on the described cut-off valve executive component, be communicated with equilibrium ball valve on the 3rd air pressure inlet opening.
Further, have hand off indication, mechanical cutting indication and long-range cut-out indication on the described cut-off valve executive component.
In order to solve the problems of the technologies described above, second kind of technological scheme of the present utility model is: a kind of tele-control system of self-powering type cut-off valve, it comprises the pressure regulation pilot valve, long-range cut-out pilot valve, normally open solenoid valve and be connected upstream line and downstream line between the self-powering type cut-off valve, the self-powering type cut-off valve is provided with long-range cut-out pilot valve and cooperates to realize self-powering type cut-off valve conducting or the cut-off valve executive component of cutting out, have the first air pressure inlet opening and the second air pressure inlet opening on the cut-off valve executive component, the first air pressure inlet opening is communicated with the air pressure output terminal of long-range cut-out pilot valve, the air pressure input end of long-range cut-out pilot valve is communicated with downstream line, the air pressure input end of pressure regulation pilot valve is communicated with upstream line, and the air pressure output terminal of pressure regulation pilot valve is communicated with the second air pressure inlet opening after connecting normally open solenoid valve.
Further, be connected with the maintenance ball valve between described second air pressure inlet opening and the normally open solenoid valve.
Further, have the 3rd air pressure inlet opening on the described cut-off valve executive component, be communicated with equilibrium ball valve on the 3rd air pressure inlet opening.
Further, have hand off indication, mechanical cutting indication and long-range cut-out indication on the described cut-off valve executive component.
After having adopted technique scheme, the effect of cut-off valve executive component is: during self-powering type cut-off valve opening state, the cut-off valve executive component fastens by machinery, and when the cut-off valve executive component was threaded off, the self-powering type cut-off valve cut out under the main spring effect; The effect of long-range cut-out pilot valve is the feedback downstream pressure, when the downstream pressure in the downstream tube road surpasses the setting value of long-range cut-out pilot valve, the valve port of long-range cut-out pilot valve is opened, downstream pressure leads to the cut-off valve executive component, the realization self-powering type cuts off, cut-out pilot valve in the utility model has voltage stabilizer and two kinds of functions of pressure governor in first kind of technological scheme, voltage stabilizer is stabilized in downstream pressure and offers normally closed solenoid valve about 3bar; Pressure governor is accurately responded to downstream pressure, improves and cuts off sensitivity; Cut-off valve executive component of the present utility model carries hand off indication, mechanical cutting indication and long-range cut-out indication.
The utlity model has following beneficial effect:
1, long-range cut-out pressure is all by the output of long-range cut-out pilot valve, pressure≤6bar, accuracy error reach as high as setting value ± 1%, be quick on the draw, output is stable, and is safe and reliable.
2, cut-out pressure stable and≤6bar, the cut-off valve executive component is selected epithelium formula sense cell for use, setting pressure is low, cuts off the precision height, and can adapt to any operating mode, comprises the operating mode that pressure reduction is lower.
3, because cut-out pressure is stable and≤6bar, normally open solenoid valve or normally closed solenoid valve can be selected single-phase the getting final product of low pressure for use, cost is low, the safety coefficient height.
4, first kind of technological scheme and second kind of technological scheme all can satisfy various operating modes and demand, the function that automatic remote cuts off when artificial long-range cut-out and fault when realizing fault; During proper functioning, the combination of long-range cut-out pilot valve and cut-off valve executive component can guarantee higher cut-out performance and Safety performance.
Description of drawings
Fig. 1 is the connection diagram of first kind of structure of the tele-control system of self-powering type cut-off valve of the present utility model;
Fig. 2 is the connection diagram of second kind of structure of the tele-control system of self-powering type cut-off valve of the present utility model.
Embodiment
Content of the present utility model is easier to be expressly understood in order to make, according to specific embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail below,
Embodiment one
As shown in Figure 1, a kind of tele-control system of self-powering type cut-off valve, it comprises long-range cut-out pilot valve 1, normally closed solenoid valve 2 and be connected upstream line 3 and downstream line 4 between self-powering type cut-off valve 5, long-range cut-out pilot valve 1 comprises voltage stabilizer 1-1 and pressure governor 1-2, self-powering type cut-off valve 5 is provided with long-range cut-out pilot valve 1 and cooperates to realize self-powering type cut-off valve 5 conductings or the cut-off valve executive component 5-1 that cuts out, have the first air pressure inlet opening 5-1-1 and the second air pressure inlet opening 5-1-2 on the cut-off valve executive component 5-1, the first air pressure inlet opening 5-1-1 is communicated with the air pressure output terminal of pressure governor 1-2, the second air pressure inlet opening 5-1-2 connects normally closed solenoid valve 2 backs and is communicated with the air pressure output terminal of voltage stabilizer 1-1, and voltage stabilizer 1-1 air pressure input end is communicated with downstream line 4.Pressure governor 1-2 and the voltage stabilizer 1-1 formula structure that becomes one.Have the 3rd air pressure inlet opening 5-1-3 on the cut-off valve executive component 5-1, be communicated with equilibrium ball valve 6 on the 3rd air pressure inlet opening 5-1-3.Pressure governor 1-2 and the voltage stabilizer 1-1 formula structure that becomes one, and the air pressure input end of pressure governor 1-2 is connected with another air pressure output terminal of voltage stabilizer 1-1.Have hand off indication, mechanical cutting indication and long-range cut-out indication on the cut-off valve executive component 5-1.
Input air pressure is exported by long-range cut-out pilot valve during described cut-off valve executive component proper functioning.
The effect of cut-off valve executive component 5-1 is: during self-powering type cut-off valve 5 opening states, cut-off valve executive component 5-1 fastens by machinery, and when cut-off valve executive component 5-1 threaded off, self-powering type cut-off valve 5 cut out under the main spring effect; The effect of long-range cut-out pilot valve 1 is the feedback downstream pressure, when the downstream pressure in the downstream tube road 4 surpasses the setting value of long-range cut-out pilot valve 1, the valve port of long-range cut-out pilot valve 1 is opened, downstream pressure leads to cut-off valve executive component 5-1, the realization self-powering type cuts off, long-range cut-out pilot valve 1 in this control system has voltage stabilizer 1-1 and pressure governor 1-2, and voltage stabilizer 1-1 is stabilized in downstream pressure and offers normally closed solenoid valve 2 about 3bar; Pressure governor 1-2 accurately responds to downstream pressure, improves and cuts off sensitivity; Cut-off valve executive component 5-1 of the present utility model carries hand off indication, mechanical cutting indication and long-range cut-out indication.
The working principle of this control system is as follows:
The realization self-powering type cuts off: when downstream pressure surpassed the setting pressure of long-range cut-out pilot valve 1, the valve port of pressure governor 1-2 was opened, and downstream pressure leads to cut-off valve executive component 5-1, and cut-off valve executive component 5-1 threads off, and self-powering type cut-off valve 5 cuts out.
Realize long-range cut-out: normally closed solenoid valve 2 working staties are normally closed, and when needing long-range cut-out when breaking down, the control room is given, normally closed solenoid valve 2 is opened, pressure after the voltage stabilizer 1-1 voltage stabilizing leads to cut-off valve executive component 5-1, and cut-off valve executive component 5-1 threads off, and the self-powering type cut-off valve cuts out.
Embodiment two
As shown in Figure 2, a kind of tele-control system of self-powering type cut-off valve, it comprises pressure regulation pilot valve 7, long-range cut-out pilot valve 1, normally open solenoid valve 8 and be connected upstream line 3 and downstream line 4 between self-powering type cut-off valve 5, self-powering type cut-off valve 5 is provided with long-range cut-out pilot valve 1 and cooperates to realize self-powering type cut-off valve 5 conductings or the cut-off valve executive component 5-1 that cuts out, have the first air pressure inlet opening 5-1-1 and the second air pressure inlet opening 5-1-2 on the cut-off valve executive component 5-1, the first air pressure inlet opening 5-1-1 is communicated with the air pressure output terminal of long-range cut-out pilot valve 1, the air pressure input end of long-range cut-out pilot valve 1 is communicated with downstream line 4, the air pressure input end of pressure regulation pilot valve 7 is communicated with upstream line 3, and the air pressure output terminal of pressure regulation pilot valve 7 connects normally open solenoid valve 8 backs and is communicated with the second air pressure inlet opening 5-1-2.Be connected with maintenance ball valve 9 between the second air pressure inlet opening 5-1-2 and the normally open solenoid valve 8.Have the 3rd air pressure inlet opening 5-1-3 on the cut-off valve executive component 5, be communicated with equilibrium ball valve 6 on the 3rd air pressure inlet opening 5-1-3.Have hand off indication, mechanical cutting indication and long-range cut-out indication on the cut-off valve executive component 5-1.
The working principle of this control system is as follows:
The realization self-powering type cuts off: when downstream pressure surpassed the setting pressure of long-range cut-out pilot valve 1, the valve port of long-range cut-out pilot valve 1 was opened, and downstream pressure leads to cut-off valve executive component 5-1, and actuator threads off, and self-powering type cut-off valve 5 cuts out.
Realize long-range cut-out: pressure regulation pilot valve 7 drops to 6bar with upstream pressure, is input to normally open solenoid valve 8, and normally open solenoid valve 8 connects electricity and cuts out; When the power supply that disconnects normally open solenoid valve 8 at monitoring chamber or because fault outage is opened the pressure that cut-off valve executive component 5-1 can long-range cut-out pilot valve 1 output of UNICOM and self-powering type cut-off valve 5 is cut off when making normally open solenoid valve 8 outages.
Above-described specific embodiment; the purpose of this utility model, technological scheme and beneficial effect are further described; institute is understood that; the above only is a specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. the tele-control system of a self-powering type cut-off valve, it is characterized in that: it comprises long-range cut-out pilot valve (1), normally closed solenoid valve (2) and be connected upstream line (3) and downstream line (4) between self-powering type cut-off valve (5), long-range cut-out pilot valve (1) comprises voltage stabilizer (1-1) and pressure governor (1-2), self-powering type cut-off valve (5) is provided with long-range cut-out pilot valve (1) and cooperates to realize self-powering type cut-off valve (5) conducting or the cut-off valve executive component (5-1) of cutting out, have the first air pressure inlet opening (5-1-1) and the second air pressure inlet opening (5-1-2) on the cut-off valve executive component (5-1), the first air pressure inlet opening (5-1-1) is communicated with the air pressure output terminal of pressure governor (1-2), the second air pressure inlet opening (5-1-2) connects normally closed solenoid valve (2) back and is communicated with the air pressure output terminal of voltage stabilizer (1-1), and the air pressure input end of voltage stabilizer (1-1) is communicated with downstream line (4).
2. the tele-control system of self-powering type cut-off valve according to claim 1, it is characterized in that: described pressure governor (1-2) and voltage stabilizer (1-1) the formula structure that becomes one, and the air pressure input end of pressure governor (1-2) is connected with another air pressure output terminal of voltage stabilizer (1-1).
3. the tele-control system of self-powering type cut-off valve according to claim 1, it is characterized in that: have the 3rd air pressure inlet opening (5-1-3) on the described cut-off valve executive component (5-1), be communicated with equilibrium ball valve (6) on the 3rd air pressure inlet opening (5-1-3).
4. the tele-control system of self-powering type cut-off valve according to claim 1 is characterized in that: have hand off indication, mechanical cutting indication and long-range cut-out indication on the described cut-off valve executive component (5-1).
5. the tele-control system of a self-powering type cut-off valve, it is characterized in that: it comprises pressure regulation pilot valve (7), long-range cut-out pilot valve (1), normally open solenoid valve (8) and be connected upstream line (3) and downstream line (4) between self-powering type cut-off valve (5), self-powering type cut-off valve (5) is provided with long-range cut-out pilot valve (1) and cooperates to realize self-powering type cut-off valve (5) conducting or the cut-off valve executive component (5-1) of cutting out, have the first air pressure inlet opening (5-1-1) and the second air pressure inlet opening (5-1-2) on the cut-off valve executive component (5-1), the first air pressure inlet opening (5-1-1) is communicated with the air pressure output terminal of long-range cut-out pilot valve (1), the air pressure input end of long-range cut-out pilot valve (1) is communicated with downstream line (4), the air pressure input end of pressure regulation pilot valve (7) is communicated with upstream line (3), and the air pressure output terminal of pressure regulation pilot valve (7) connects normally open solenoid valve (8) back and is communicated with the second air pressure inlet opening (5-1-2).
6. the tele-control system of self-powering type cut-off valve according to claim 5 is characterized in that: be connected with maintenance ball valve (9) between described second air pressure inlet opening (5-1-2) and the normally open solenoid valve (8).
7. according to the tele-control system of claim 5 or 6 described self-powering type cut-off valves, it is characterized in that: have the 3rd air pressure inlet opening (5-1-3) on the described cut-off valve executive component (5), be communicated with equilibrium ball valve (6) on the 3rd air pressure inlet opening (5-1-3).
8. the tele-control system of self-powering type cut-off valve according to claim 5 is characterized in that: have hand off indication, mechanical cutting indication and long-range cut-out indication on the described cut-off valve executive component (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068207 CN203082330U (en) | 2013-02-06 | 2013-02-06 | Remote control system of self-operated shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068207 CN203082330U (en) | 2013-02-06 | 2013-02-06 | Remote control system of self-operated shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082330U true CN203082330U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320068207 Expired - Lifetime CN203082330U (en) | 2013-02-06 | 2013-02-06 | Remote control system of self-operated shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789523A (en) * | 2023-02-07 | 2023-03-14 | 乐山川天燃气输配设备有限公司 | Gas transmission and distribution pipe network with remote cut-off function |
-
2013
- 2013-02-06 CN CN 201320068207 patent/CN203082330U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789523A (en) * | 2023-02-07 | 2023-03-14 | 乐山川天燃气输配设备有限公司 | Gas transmission and distribution pipe network with remote cut-off function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
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| CX01 | Expiry of patent term |