CN203322439U - Quick cutting-off control device of electrically operated valve - Google Patents
Quick cutting-off control device of electrically operated valve Download PDFInfo
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- CN203322439U CN203322439U CN2013203178543U CN201320317854U CN203322439U CN 203322439 U CN203322439 U CN 203322439U CN 2013203178543 U CN2013203178543 U CN 2013203178543U CN 201320317854 U CN201320317854 U CN 201320317854U CN 203322439 U CN203322439 U CN 203322439U
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- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000007726 management method Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 31
- 230000005540 biological transmission Effects 0.000 description 19
- 230000033228 biological regulation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a quick cutting-off control device of an electrically operated valve. The quick cutting-off control device is mainly composed of a cutoff pressure transmitter installed on an air delivery pipe, an electrically operated check valve, a blow-down pressure transmitter installed on a blow-down pipe, an electrically operated blow-down valve and an intelligent controller. The quick cutting-off control device utilizes the pressure transmitter to track and monitor an operation state of an air delivery pipeline and inputs pressure change information into the intelligent controller to perform control and management. When air delivery pressure fluctuation is extremely abnormal, the quick cutting-off control device can rapidly send starting-closing commands to the electrically operated blow-down valve and the electrically operated check valve to enable the electrically operated check valve to rapidly turn off and cut off an overpressure air source or turn on the electrically operated blow-down valve to perform pressure release. A trial proves that the quick cutting-off control device has the outstanding advantages of being low in operation cost, high in intelligent control degree, high in response sensitiveness cutoff speed, safe and reliable in operation and the like, has the obvious effect on prevention of 'overpressure operation' and ensuring of the safety of pipe network devices and has marvelous application prospect in the air delivery industry.
Description
Technical field
The utility model relates to a kind of mortor operated valve fast shut-off control gear; belong to the intelligent technical field of controlling of gas line network; it is particularly suitable for installing and using on the petrochemical industry transmission & distribution are supplied gas the body medium pipeline; can continuous monitoring the operation working state and can be when overpressure occurring the fast shut-off source of the gas, gas line network equipment is had to high safety protection performance.
Background technique
High speed development along with China's petrochemical industry cause, effectively advanced transmission & distribution to send the construction process of combustion gas (such as rock gas, coal gas, CNG etc.) pipe network system engineering, gas transmission managerial department is in order to ensure the normal operation of pipe network equipment and then the stable accumulating ability that improves, and in transmission & distribution, send in links all the pressure that will manage working specification regulation and control institute conveying gas body medium in strict accordance with gas transmission can keep constantly steady state.When if the gas pressure fluctuation exceeds the authouized pressure set, just easily cause the security incident of damaging pipe network system equipment.The phenomenon of " superpressure operation " occurs in order to prevent gas line network equipment in gas transmission managerial department, at present, mostly to adopt equipped pressure governor on pneumatic tube to carry out voltage-regulation voltage-stabilization, the existing pressure governor generally used is generally direct effect, the large class of indirectly-acting two, its working principle is: with signal tube, the Pressure Fluctuation Signal in pneumatic tube is imported directly or indirectly-acting in diaphragm unit, by diaphragm unit, by mechanical transmission mechanism, be with movable valve plug to be subjected to displacement again, because spool moves the purpose that the restriction aperture that changes moving gaseouse medium reaches voltage-regulation voltage-stabilization.To be objective, it can fluctuate and the control distribution pressure is stablized certain effect is arranged by adjustable pressure to a certain extent.But, we also find in being engaged in for a long time the gas pressure regulator R&D and production: still there are some technical bugs in actual use in existing pressure governor, its main manifestations is: after being fluctuateed by the diaphragm unit induction pressure due to it, regulate and control action by mechanical transmission again, its transfer chain lower to the pressure surge susceptibility, fluctuation signal that is in operation is longer, this will cause the pressure regulation action lag behind and reduce reaction velocity, sometimes also there will be because the pressure regulation action lags behind the phenomenon that pressure regulation was lost efficacy occurs.In the situation that the pressure regulation inefficacy, if can not the fast shut-off high-pressure air source just easily cause the accident because of " superpressure operation " damage equipment.In order to address this problem, some places have attempted installing power type stop valve equipment on pneumatic tube, it is reported: it has certain effect to accelerating pressure signal transmission and excess pressure cutout speed, but, but there is the technical bug of the low and safe operation poor stability of higher, the intelligent level of control of mounting cost in it in the design of control section, this just the utility model want the problem further solved.
The model utility content
The purpose of this utility model is intended to overcome prior art above shortcomings part, and proposes the mortor operated valve fast shut-off control gear that a kind of intelligent degree is high, reaction velocity is fast, safe and reliable to operation.
The purpose of this utility model is achieved by the following technical solution:
A kind of mortor operated valve fast shut-off control gear the utility model proposes, it comprises the Electric Actuated Stop Valves that is installed on pneumatic tube, cutoff pressure transmitter and electronic control cabinet, it is characterized in that: in electronic control cabinet, be fitted with intelligent controller, the front press bond that is positioned at Electric Actuated Stop Valves on pneumatic tube is equipped with blow-down pipe, the emptying pressure transmitter is installed on blow-down pipe, electronic atmospheric valve, described cutoff pressure transmitter, the emptying pressure transmitter is connected in intelligent controller by the pressure sensing cable respectively, Electric Actuated Stop Valves, electronic atmospheric valve is respectively by driving the execution cable to be connected in intelligent controller.
For implementing better the technical solution of the utility model, it also has following technical characteristics:
Described intelligent controller comprises PLC module, power module, pressure conversion circuit, emptying driver module, cut-off driver module, acoustooptic alarm module and alternating interface between man and computer.
Pressure valve, rear pressure valve and flowmeter before being fitted with on pneumatic tube.
Be fitted with the emptying ball valve on blow-down pipe.
Remarkable structural feature of the present utility model is: at pneumatic tube, the cutoff pressure transmitter is installed respectively on blow-down pipe, the emptying pressure transmitter carrys out the tracking and monitoring distribution pressure, and by the pressure sensing cable, the distribution pressure fluctuation information of collection input intelligent controller is carried out to computing, when the pressure surge of gas transmission line occurs extremely extremely reaching the cutoff pressure set, intelligent controller will be carried out cable by driving and send shutdown command to Electric Actuated Stop Valves, Electric Actuated Stop Valves can cut out fast shut-off isolation superpressure source of the gas immediately, when if the pressure of gas transmission line continues to be increased to the emptying pressure set again, intelligent controller will be carried out cable by driving and send open command to electronic atmospheric valve, make electronic atmospheric valve open and carry out the emptying pressure release fast, can fast and effeciently to gas line network equipment, carry out safety protection, also will carry out alarm by the acoustooptic alarm module simultaneously, remind administrative staff to process in time.After the pressure of gas transmission line recovers normally, intelligent controller can be carried out cable by driving again and send respectively shutdown command, open command to electronic atmospheric valve, Electric Actuated Stop Valves, automatically open Electric Actuated Stop Valves after electronic atmospheric valve cuts out again, can make gas transmission line again recover normal gas transmission working state.
The utlity model has following advantage:
The utility model is utilize pressure transmitter continuous monitoring gas transmission line running state and the pressure changing information of collection is inputted to intelligent controller in time, undertaken after computing carrying out cable by driving by intelligent controller again and send respectively and close or open command to electronic atmospheric valve, Electric Actuated Stop Valves, can realize the intelligent goal of the invention that Electric Actuated Stop Valves, electronic atmospheric valve carry out fast opening and closing and then guarantee the gas line network equipment safety operation of controlling.The utlity model has that low, the intelligent control degree of installation and operation cost is high, the high outstanding advantages of fast, the safe and reliable to operation performance of the cut-off velocity that is quick on the draw.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model, and accompanying drawing also makes an abstract.
Fig. 2 is the control principle module frame chart of intelligent controller of the present utility model.
Description of symbols in accompanying drawing:
1 is flowmeter, and 2 is rear pressure valve, and 3 is the cutoff pressure transmitter, 4 is Electric Actuated Stop Valves, and 5 is pneumatic tube, and 6 is front pressure valve, 7 is electronic atmospheric valve, and 8 is the emptying ball valve, and 9 is the emptying pressure transmitter, 10 is the pressure sensing cable, and 11 carry out cable for driving, and 12 is liquid crystal display, 13 is keyboard, 14 is electronic control cabinet, and 15 is intelligent controller, and 16 is blow-down pipe.
Embodiment
Further illustrate embodiment of the present utility model below in conjunction with accompanying drawing:
A kind of mortor operated valve fast shut-off control gear the utility model proposes, it is mainly by the intelligent controller 15 be fitted in electronic control cabinet 14, be installed on the flowmeter 1 on pneumatic tube 5, cutoff pressure transmitter 3, Electric Actuated Stop Valves 4, front pressure valve 6, rear pressure valve 2 and be installed on the emptying pressure transmitter 9 on blow-down pipe 16, electronic atmospheric valve 7, emptying ball valve 8 forms, blow-down pipe 16 is connected and installed on pneumatic tube 5 and is positioned at the front pressure side position of Electric Actuated Stop Valves 4, described intelligent controller 15 comprises the PLC module, power module, pressure conversion circuit, the emptying driver module, the cut-off driver module, acoustooptic alarm module and alternating interface between man and computer, described cutoff pressure transmitter 3, emptying pressure transmitter 9 is connected in respectively the pressure conversion circuit of intelligent controller 15 by pressure sensing cable 10, Electric Actuated Stop Valves 4, electronic atmospheric valve 7 are to carry out by driving cut-off driver module, the emptying driver module that cable 11 is connected to intelligent controller 15.It is to carry out as follows work: after electronic control cabinet 14 energisings, at first open intelligent controller 15 and carry out initialization, then, according to the gas transmission HANDLING PROCEDURE, set cutoff pressure, the emptying pressure of gas transmission line by alternating interface between man and computer.For example: operate keyboard 13 on electronic control cabinet 14 by cutoff pressure be set as 3.5MPa, the emptying pressure setting is 4.5MPa, can on liquid crystal display 12, demonstrate the numerical value that sets pressure.After conscientiously checking that confirmation is errorless, open the front pressure valve 6 on pneumatic tube 5, emptying ball valve 8 on rear pressure valve 2 and blow-down pipe 16 can carry out normal gas transmission operation: on flowmeter 1, can automatically record the numerical value that shows instantaneous flow and integrated flow, cutoff pressure transmitter 3 on pneumatic tube 5 and the 9 meeting automatic tracking, monitoring distribution pressures of the emptying pressure transmitter on blow-down pipe 16 also carry out computing by pressure sensing cable 10 by the pressure surge input information intelligent controller 15 of collection, when the pressure surge in pneumatic tube 5 occurs extremely extremely reaching the cutoff pressure 3.5MPa set, intelligent controller 15 will be carried out cable 11 by driving and send shutdown command to Electric Actuated Stop Valves 4, Electric Actuated Stop Valves 4 can cut out fast shut-off superpressure source of the gas immediately, after if the pressure in pneumatic tube 5 is brought down below cutoff pressure 3.5MPa, intelligent controller 15 can send open command to Electric Actuated Stop Valves 4 again, Electric Actuated Stop Valves 4 is reopened and carry out the gas transmission operation, if pressure is continue to raise until while reaching the emptying pressure 4.5MPa set, intelligent controller 15 will be carried out cable 11 by driving and send open command to electronic atmospheric valve 7, at this moment, electronic atmospheric valve 7 will be opened fast and carry out the emptying pressure release, can fast and effeciently to gas line network equipment, carry out safety protection, carry out alarm by the acoustooptic alarm module simultaneously, remind the bookkeeping personnel to process in time.After the pressure of gas transmission line recovers normally, cutoff pressure transmitter 3, emptying pressure transmitter 9 can be by the normal input information intelligent controllers 15 of distribution pressure, intelligent controller 15 will be carried out cable 11 by driving again and send respectively shutdown command, open command to electronic atmospheric valve 7, Electric Actuated Stop Valves 4, after electronic atmospheric valve 7 cuts out, Electric Actuated Stop Valves 4 can be opened automatically, can make gas transmission line again recover normal gas transmission operation.
It should be noted that: " electric/manual " COMM communication and manually-operable button also can be set on electronic control cabinet 14, break down while needing repairing at burst " power failure " accident or electronic control apparatus, can adopt the manual-operated emergent mode of operation to maintain gas line network equipment and proceed normal operation.
Claims (4)
1. a mortor operated valve fast shut-off control gear, it comprises the Electric Actuated Stop Valves (4) that is installed on pneumatic tube (5), cutoff pressure transmitter (3) and electronic control cabinet (14), it is characterized in that: be fitted with intelligent controller (15) in electronic control cabinet (14), the front press bond that is positioned at Electric Actuated Stop Valves (4) on pneumatic tube (5) is equipped with blow-down pipe (16), emptying pressure transmitter (9) is installed on blow-down pipe (16), electronic atmospheric valve (7), described cutoff pressure transmitter (3), emptying pressure transmitter (9) is connected in intelligent controller (15) by pressure sensing cable (10) respectively, Electric Actuated Stop Valves (4), electronic atmospheric valve (7) is respectively by driving execution cable (11) to be connected in intelligent controller (15).
2. mortor operated valve fast shut-off control gear according to claim 1 is characterized in that: described intelligent controller (15) comprises PLC module, power module, pressure conversion circuit, emptying driver module, cut-off driver module, acoustooptic alarm module and alternating interface between man and computer.
3. mortor operated valve fast shut-off control gear according to claim 1 and 2, is characterized in that: be fitted with front pressure valve (6), rear pressure valve (2) and flowmeter (1) on pneumatic tube (5).
4. mortor operated valve fast shut-off control gear according to claim 1 and 2, is characterized in that: be fitted with emptying ball valve (8) on blow-down pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203178543U CN203322439U (en) | 2013-06-04 | 2013-06-04 | Quick cutting-off control device of electrically operated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203178543U CN203322439U (en) | 2013-06-04 | 2013-06-04 | Quick cutting-off control device of electrically operated valve |
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| Publication Number | Publication Date |
|---|---|
| CN203322439U true CN203322439U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203178543U Expired - Lifetime CN203322439U (en) | 2013-06-04 | 2013-06-04 | Quick cutting-off control device of electrically operated valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765291A (en) * | 2020-07-08 | 2020-10-13 | 广州百畅信息科技有限公司 | Electromagnetic valve forced closing circuit system |
| CN112254007A (en) * | 2020-11-10 | 2021-01-22 | 瑞星久宇燃气设备（成都）有限公司 | Low-pressure pipe network temperature-pressure self-adaptive protection system and method |
-
2013
- 2013-06-04 CN CN2013203178543U patent/CN203322439U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765291A (en) * | 2020-07-08 | 2020-10-13 | 广州百畅信息科技有限公司 | Electromagnetic valve forced closing circuit system |
| CN111765291B (en) * | 2020-07-08 | 2022-08-02 | 厦门盈瑞丰电子科技有限公司 | Electromagnetic valve forced closing circuit system |
| CN112254007A (en) * | 2020-11-10 | 2021-01-22 | 瑞星久宇燃气设备（成都）有限公司 | Low-pressure pipe network temperature-pressure self-adaptive protection system and method |
| CN112254007B (en) * | 2020-11-10 | 2024-06-04 | 瑞星久宇燃气设备（成都）有限公司 | Low-pressure pipe network temperature-pressure self-adaptive protection system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: The western part of central Sichuan city of Leshan province Elu Le 614013 No. 231 Patentee after: SICHUAN ZHONGYOU LEYI ENERGY EQUIPMENT MANUFACTURING CO.,LTD. Address before: 614013 Sichuan Province, Leshan City District Suji town seven village back street shop Patentee before: LESHAN THERMO TECHNICAL INSTRUMENTS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |