CN212540634U - Device for automatically eliminating in-place signal fault in control of quick-switching valve switch - Google Patents
Device for automatically eliminating in-place signal fault in control of quick-switching valve switch Download PDFInfo
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- CN212540634U CN212540634U CN202020025605.7U CN202020025605U CN212540634U CN 212540634 U CN212540634 U CN 212540634U CN 202020025605 U CN202020025605 U CN 202020025605U CN 212540634 U CN212540634 U CN 212540634U
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Abstract
The utility model relates to a device that is arranged in fast cut valve switch control to get rid of signal fault that targets in place by oneself, including L shape bottom plate, proximity switch, travel switch, control box, fast cut valve axis of rotation, position detection board, this device has realized getting rid of signal fault that targets in place by oneself in the fast cut valve switch control, has thoroughly solved the problem that fast cut valve can not reliably act in on-the-spot adverse circumstances, has avoided fast cut valve can not be fast reliable when main part equipment stops transporting the safety risk that pipeline medium brought of cutting off, has higher practicality and economic benefits.
Description
Technical Field
The application belongs to the technical field of electric automation detection, and more specifically relates to a device for automatically eliminating in-place signal faults in quick-switching valve switch control.
Background
The quick cut valve is also called a quick cut valve, is used on a gas pipeline more, is mainly used for quickly cutting off a gas source of main body equipment to ensure that the main body equipment is safely shut down, and also belongs to a safety facility.
From a safety point of view, the quick-cut valve control program is set to: when the quick-cut valve is opened in place, an operator clicks a monitoring picture or a closing operation button of the valve control box, the quick-cut valve is closed until the quick-cut valve is closed in place, the closing-in-place indicator lamp is turned on, and the valve stops acting; when the quick-cutting valve is closed in place, an operator clicks a monitoring picture or an opening operation button of the valve control box, the quick-cutting valve is opened until the quick-cutting valve is opened in place, the opening position indicating lamp is turned on, and the valve stops acting.
The fault phenomenon is as follows: when the on-site valve is opened to the position, the on-position detection fails, the monitoring picture and the on-position indicator lamp of the valve control box are not on, and when the valve is controlled to be closed, the valve cannot be closed due to no on-position signal set by a program; when the on-site valve is closed in place, the in-place closing detection fails, the monitoring picture and the in-place closing indicator lamp of the valve control box are not on, and when the valve is opened and controlled, the valve cannot be opened when in-place signals are not related due to program setting.
The signals of the fast switch valve in-place opening and closing in-place are generally detected by using a proximity switch or a travel switch, and the signal detection fault is caused by the detection principle of the proximity switch or the travel switch.
The detection principle of the proximity switch is as follows: when the external valve plate carried by the valve rotating shaft reaches the detection range of the proximity switch, the proximity switch detects an in-place signal, and the valve stops rotating. When the signal that targets in place adopts proximity switch, the unable reason of action of fast switch valve trouble is: due to vibration of a pipeline connected with the valve, weather reasons and the like, an external valve plate of the valve deviates and exceeds the detection range of the proximity switch, so that the in-place signal disappears and the valve cannot act.
The detection principle of the travel switch is as follows: when the external valve plate carried by the valve rotating shaft reaches the travel switch contact, the valve continues to rotate until the travel switch contact is pressed down, the internal contact of the travel switch is closed, the in-place signal appears, and the valve stops rotating. When the in-place signal adopts a travel switch, the failure of the quick-switching valve cannot act because: when the quick-cutting valve is used in the environments of moisture, rainwater, steam, corrosive gas (coal gas and the like), and the like, a contact of a travel switch and a spring are corroded, so that the condition that an in-place signal cannot disappear and the condition that the valve is opened in place and closed in place simultaneously occur.
In order to ensure that the quick-cutting valve can quickly and reliably cut off pipeline media when main equipment stops running, other methods are urgently needed to acquire a valve in-place signal, and the quick-cutting valve is ensured to reliably act in a severe environment on site.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve is overcome current fast cut valve signal detection trouble that targets in place, provides one kind and is arranged in fast cut valve switch control to get rid of the device that targets in place signal trouble by oneself, can utilize existing equipment to can get rid of the signal trouble that targets in place by oneself, guarantee to cut the valve reliably to move in on-the-spot adverse circumstances soon.
In order to solve the above problem, the utility model discloses the technical scheme who adopts is:
a device for automatically eliminating in-place signal faults in the control of a quick-cutting valve switch comprises an L-shaped bottom plate arranged on a quick-cutting valve switch position indicating disc, an opening I which is arranged on the upper side of the L-shaped bottom plate and used for fixing a proximity switch, an opening II which is arranged on the lower side of the L-shaped bottom plate and used for fixing a travel switch, and a control box which is electrically connected with the proximity switch and the travel switch, wherein a position detection plate (matched with the quick-cutting valve rotating shaft) is arranged on the quick-cutting valve rotating shaft, the telescopic end of the travel switch is close to the position detection plate, and the distance between the detection end of the proximity switch and the telescopic end of the travel switch is 0.;
the control box comprises a relay KA4 connected with two ends of a (one-way) alternating current power supply in parallel in sequence through a breaker QF2, a relay KA5, a relay KA6, a relay KA7, a proximity switch on-to-position indicator light JJKGKDW connected with two ends of the direct current power supply in parallel, a proximity switch off-position indicator light JJJJKGGDW, a travel switch on-to-position indicator light XCKGKDW, a travel switch off-position indicator light XCKGGDW, a proximity switch fault alarm indicator light JJJKGGZ, a travel switch fault alarm indicator light XCKGGZ, a quick switch control button SB4, a quick switch control relay KA2, a slow switch control button SB3 and a slow switch control relay KA1, wherein:
the proximity switch on-position signal and the proximity switch off-position signal are respectively and electrically connected with a coil of the relay KA4 and a coil of the relay KA5, the travel switch on-position signal and the travel switch off-position signal are respectively and electrically connected with a coil of the relay KA6 and a coil of the relay KA7, and the normally open points of the relay KA4 and the relay KA7 are respectively connected with a proximity switch on-position indicator light JJKGKDW, a proximity switch off-position indicator light JJKGGDW, a travel switch on-position indicator light XCKGKDW and a travel switch off-position indicator light XCKGGDW in series;
the quick-closing control button SB4, the second normally-open point of the relay KA4, the normally-closed point of the relay KA5, the normally-closed contact of the slow-opening control relay KA1 and the coil of the quick-closing control relay KA2 are sequentially connected in series, and the normally-open contact of the quick-closing control relay KA2 and the normally-closed contact of the relay KA7 are connected in series and then connected in parallel to two ends of the quick-closing control button SB4, the second normally-open point of the relay KA4 and the normally-closed point of the relay KA 5;
the slow-open control button SB3, the second normally-open point of the relay KA5, the normally-closed point of the relay KA4, the normally-closed point of the fast-close control relay KA2 and the coil of the slow-open control relay KA1 are sequentially connected in series, the normally-open point of the slow-open control relay KA1 and the normally-closed point of the relay KA6 are connected in series and then connected in parallel with the slow-open control button SB3, the second normally-open point of the relay KA5 and the two ends of the normally-closed point of the relay KA4, the normally-open point of the slow-open control relay KA1, the normally-open point of the slow-open control button SB3, the normally-open point of the fast-close control relay KA2 and the corresponding end of the fast-close control button SB4 are connected with the transfer switch SA1 through the button SB2, the other end of the transfer switch 737SA 6 is connected with the live wire through the breaker QF2, and the.
The utility model discloses technical scheme's further improvement lies in: the L-shaped bottom plate is welded on the position indicating disc of the switch of the quick-cutting valve, and the L-shaped bottom plate is 12cm wide, 9cm long on the upper side and 12cm long on the lower side.
The utility model discloses technical scheme's further improvement lies in: the opening I is arranged in the center of the upper side of the L-shaped bottom plate.
Since the technical scheme is used, the utility model discloses the beneficial effect who gains is:
the utility model discloses the device adopts on-the-spot electrical element and multiplexer utensil commonly used, simple structure, convenient to use, and the fault rate is low. The control device has the advantages that the in-place signal fault can be automatically eliminated in the control of the switch of the quick-switching valve, the problem that the quick-switching valve cannot reliably act in the severe environment on site is thoroughly solved, the safety risk caused by the fact that the pipeline medium of the quick-switching valve cannot be quickly and reliably cut off when the main body equipment stops running is avoided, and the control device has high practicability and economic benefits.
Drawings
FIG. 1 is a schematic structural view of an L-shaped bottom plate of the present invention;
FIG. 2 is a schematic view of the installation structure of the present invention;
fig. 3 is a schematic view of the usage state of the present invention;
fig. 4 is a first circuit diagram of the present invention;
fig. 5 is a circuit diagram of the present invention;
wherein: 1. the device comprises an L-shaped bottom plate, 2, openings I and 3, openings II and 4, a proximity switch, 5, a travel switch, 6, a quick-cutting valve switch position indicating plate, 7, a quick-cutting valve rotating shaft, 8, a position detecting plate, 9, closed position detection and 10, open position detection.
Detailed Description
The present invention will be described in further detail with reference to examples.
The utility model discloses a device that is arranged in fast cut valve switch control to get rid of signal fault that targets in place by oneself, including setting up L shape bottom plate 1 on fast cut valve switch position indicator 6, setting up trompil I2 that is used for fixed proximity switch 4 on L shape bottom plate 1 upside, setting up trompil II 3 that is used for fixed travel switch 5 on L shape bottom plate 1 downside, the control box of being connected with proximity switch 4 and travel switch 5 electricity, be equipped with a (with fast cut valve axis of rotation complex) position pick-up plate 8 on fast cut valve axis of rotation 7, travel switch 5 flexible end is close to this position pick-up plate 8, proximity switch 4 detection end and travel switch 5 flexible end are 0.5cm ~ 1.3cm apart (refer to arrow head direction indication in figure 2.); the L-shaped bottom plate 1 is welded on the position indicating plate 6 of the quick-cutting valve switch, and the L-shaped bottom plate 1 is 12cm wide, 9cm long on the upper side and 12cm long on the lower side. The opening I2 is arranged at the center of the upper side of the L-shaped bottom plate 1.
The control box comprises a relay KA4 connected with two ends of a (one-way) alternating current power supply in parallel in sequence through a breaker QF2, a relay KA5, a relay KA6, a relay KA7, a proximity switch on-to-position indicator light JJKGKDW connected with two ends of the direct current power supply in parallel, a proximity switch off-position indicator light JJJJKGGDW, a travel switch on-to-position indicator light XCKGKDW, a travel switch off-position indicator light XCKGGDW, a proximity switch fault alarm indicator light JJJKGGZ, a travel switch fault alarm indicator light XCKGGZ, a quick switch control button SB4, a quick switch control relay KA2, a slow switch control button SB3 and a slow switch control relay KA1, wherein:
the proximity switch on-position signal and the proximity switch off-position signal are respectively and electrically connected with a coil of the relay KA4 and a coil of the relay KA5, the travel switch on-position signal and the travel switch off-position signal are respectively and electrically connected with a coil of the relay KA6 and a coil of the relay KA7, and the normally open points of the relay KA4 and the relay KA7 are respectively connected with a proximity switch on-position indicator light JJKGKDW, a proximity switch off-position indicator light JJKGGDW, a travel switch on-position indicator light XCKGKDW and a travel switch off-position indicator light XCKGGDW in series;
the quick-closing control button SB4, the second normally-open point of the relay KA4, the normally-closed point of the relay KA5, the normally-closed contact of the slow-opening control relay KA1 and the coil of the quick-closing control relay KA2 are sequentially connected in series, and the normally-open contact of the quick-closing control relay KA2 and the normally-closed contact of the relay KA7 are connected in series and then connected in parallel to two ends of the quick-closing control button SB4, the second normally-open point of the relay KA4 and the normally-closed point of the relay KA 5;
the slow-open control button SB3, the second normally-open point of the relay KA5, the normally-closed point of the relay KA4, the normally-closed point of the fast-close control relay KA2 and the coil of the slow-open control relay KA1 are sequentially connected in series, the normally-open point of the slow-open control relay KA1 and the normally-closed point of the relay KA6 are connected in series and then connected in parallel with the slow-open control button SB3, the second normally-open point of the relay KA5 and the two ends of the normally-closed point of the relay KA4, the normally-open point of the slow-open control relay KA1, the normally-open point of the slow-open control button SB3, the normally-open point of the fast-close control relay KA2 and the corresponding end of the fast-close control button SB4 are connected with the transfer switch SA1 through the button SB2, the other end of the transfer switch 737SA 6 is connected with the live wire through the breaker QF2, and the. Meanwhile, an oil pump motor control loop, an oil pressure high relay control loop and an oil pressure high alarm control loop belong to the original loop and are not described again.
In fig. 4, the loops are, from top to bottom: the control system comprises a circuit breaker control loop, an oil pump motor control loop, a slow-opening control loop, a fast-closing control loop, an oil pressure high relay control loop, a proximity switch opening in-place control loop, a proximity switch closing in-place control loop, a travel switch opening in-place control loop and a travel switch closing in-place control loop.
In fig. 5, the loops are, from top to bottom: the hydraulic pressure high alarm control circuit, the proximity switch in-place indication control circuit, the travel switch in-place indication control circuit, the proximity switch fault alarm control circuit and the travel switch fault alarm control circuit.
When the device is manufactured, an L-shaped bottom plate 1 is manufactured according to a graph 1, a proximity switch 4 and a travel switch 5 are installed according to a graph 2, the distance between the detection end of the installed proximity switch 4 and the telescopic end of the travel switch 5 is 0.5 cm-1.3 cm (the telescopic end of the travel switch 5 is close to a position detection plate 8 carried by a rotating shaft 7 of a quick-cutting valve).
To illustrate by taking the example of closing in place, referring to fig. 3, the quick-cutting valve is first closed in place, the quick-cutting valve rotating shaft 7 drives the position detecting plate 8 to the position shown in the figure, and the position detecting plate 8 must press the contact of the travel switch 5 of the present invention, so as to determine the welding position, and finally the L-shaped bottom plate 1 is welded on the quick-cutting valve switch position indicating plate 6.
The control box is internally provided with: 3 (16A 1, 10A 2) 220V power switches are used for switching on and off the power supply; 1 (KM) 220V contactor, 1 KH 220V thermal relay and 1 KA3 220V intermediate relay for controlling an oil pump motor; and 7 220V intermediate relays (KA 4-KA 9) are used for controlling the switch of the quick-opening valve. The front of the control box is provided with: 6 220V alarm indicator lamps are used for on-off in-place indication and fault alarm; 5 buttons are used for starting and stopping the oil pump and switching the quick-switching valve; 1 conversion switches (SA 1) are used for field and remote operation and have a PLC remote control function.
The control box is configured, components such as an air switch, an intermediate relay and the like are installed in the control box, components such as a change-over switch, a button, an indicator light and the like are installed on a door of the control box, the components are connected by a lead according to the control principle diagrams of fig. 4 and 5, and finally a 220V power supply, a travel switch for in-place detection of a field switch and a cable for a proximity switch are led into the control box and connected into a terminal.
And (3) action test: when the valve is closed in place, checking that the indicator lamps of the proximity switch 4 and the travel switch 5 which are closed in place are on, pressing a valve opening button, opening the valve until the indicator lamp of the proximity switch which is opened in place is on, continuing to open the valve until the indicator lamp of the travel switch which is opened in place is on, and stopping the valve; reverse test valve closing action; when the on-position and the off-position of the travel switch 5 exist simultaneously, the alarm is given out without influencing the valve action.
When an original quick-cutting valve only adopts a proximity switch or a travel switch to detect an in-place signal, the in-place closing detection fails under the condition that a field valve is in place, a monitoring picture and a valve control box in-place closing indicator lamp are not on, and the valve cannot be opened when the in-place signal is not related to program setting (the valve opening and closing control principle is the same) when the valve opening and controlling operation is carried out. Because the utility model discloses an use, realized getting rid of the signal trouble that targets in place by oneself in the fast cut valve switch control, thoroughly solved above-mentioned problem, guaranteed the reliable action of fast cut valve in on-the-spot adverse circumstances for the pipeline medium that cuts off that fast cut valve can be reliable fast when the main part equipment is shut down.
Claims (3)
1. A device for automatically eliminating in-place signal faults in the control of a quick-switching valve switch is characterized in that: the quick-cutting valve position indicating device comprises an L-shaped bottom plate (1) arranged on a quick-cutting valve switch position indicating disc (6), a hole I (2) which is arranged on the upper side of the L-shaped bottom plate (1) and used for fixing a proximity switch (4), a hole II (3) which is arranged on the lower side of the L-shaped bottom plate (1) and used for fixing a travel switch (5), and a control box which is electrically connected with the proximity switch (4) and the travel switch (5), wherein a position detecting plate (8) matched with the quick-cutting valve rotating shaft is arranged on a quick-cutting valve rotating shaft (7), the telescopic end of the travel switch (5) is close to the position detecting plate (8), and the distance between the detecting end of the proximity switch (4) and the telescopic end of the travel switch (5) is;
the control box comprises a relay KA4 connected with two ends of an alternating current power supply in parallel in sequence through a breaker QF2, a relay KA5, a relay KA6, a relay KA7, a proximity switch on-to-position indicator light JJJKGKDW connected with two ends of the direct current power supply in parallel, a proximity switch off-to-position indicator light JJJKGGDW, a travel switch on-to-position indicator light XCKGKDW, a travel switch off-to-position indicator light XCKGGDW, a proximity switch fault alarm indicator light JJJKGGZ, a travel switch fault alarm indicator light XCKGGZ, a quick switch control button SB4, a quick switch control relay KA2, a slow switch control button SB3, a slow switch control relay KA1, wherein:
the proximity switch on-position signal and the proximity switch off-position signal are respectively and electrically connected with a coil of the relay KA4 and a coil of the relay KA5, the travel switch on-position signal and the travel switch off-position signal are respectively and electrically connected with a coil of the relay KA6 and a coil of the relay KA7, and the normally open points of the relay KA4 and the relay KA7 are respectively connected with a proximity switch on-position indicator light JJKGKDW, a proximity switch off-position indicator light JJKGGDW, a travel switch on-position indicator light XCKGKDW and a travel switch off-position indicator light XCKGGDW in series;
the quick-closing control button SB4, the second normally-open point of the relay KA4, the normally-closed point of the relay KA5, the normally-closed contact of the slow-opening control relay KA1 and the coil of the quick-closing control relay KA2 are sequentially connected in series, and the normally-open contact of the quick-closing control relay KA2 and the normally-closed contact of the relay KA7 are connected in series and then connected in parallel to two ends of the quick-closing control button SB4, the second normally-open point of the relay KA4 and the normally-closed point of the relay KA 5;
the slow-open control button SB3, the second normally-open point of the relay KA5, the normally-closed point of the relay KA4, the normally-closed point of the fast-close control relay KA2 and the coil of the slow-open control relay KA1 are sequentially connected in series, the normally-open point of the slow-open control relay KA1 and the normally-closed point of the relay KA6 are connected in series and then connected in parallel with the slow-open control button SB3, the second normally-open point of the relay KA5 and the two ends of the normally-closed point of the relay KA4, the normally-open point of the slow-open control relay KA1, the normally-open point of the slow-open control button SB3, the normally-open point of the fast-close control relay KA2 and the corresponding end of the fast-close control button SB4 are connected with the transfer switch SA1 through the button SB2, the other end of the transfer switch 737SA 6 is connected with the live wire through the breaker QF2, and the.
2. The apparatus for self-clearing in-place signal fault in fast switching valve switch control according to claim 1, characterized in that: the L-shaped bottom plate (1) is welded on the position indicating disc (6) of the switch of the quick-cutting valve, and the L-shaped bottom plate (1) is 12cm wide, 9cm long on the upper side and 12cm long on the lower side.
3. The apparatus for self-clearing in-place signal fault in fast switching valve switch control according to claim 2, characterized in that: the opening I (2) is arranged in the center of the upper side of the L-shaped bottom plate (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020025605.7U CN212540634U (en) | 2020-01-07 | 2020-01-07 | Device for automatically eliminating in-place signal fault in control of quick-switching valve switch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020025605.7U CN212540634U (en) | 2020-01-07 | 2020-01-07 | Device for automatically eliminating in-place signal fault in control of quick-switching valve switch |
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| CN212540634U true CN212540634U (en) | 2021-02-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113680853A (en) * | 2021-07-18 | 2021-11-23 | 朱上河 | High-efficient coalignment of civil air defense door frame angle steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113680853A (en) * | 2021-07-18 | 2021-11-23 | 朱上河 | High-efficient coalignment of civil air defense door frame angle steel |
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