A single debugging control system for an electric valve
By designing a single-unit commissioning control system for electric valves, and utilizing power generators and valve control modules for autonomous commissioning of electric valves, the problem of waiting for facility installation during commissioning of electric valves has been solved, achieving efficient single-unit commissioning.
Patent Information
- Application Number
- CN202211447033.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-18
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2042-11-18
AI Technical Summary
In existing technologies, the commissioning of individual electric valves requires waiting for the control cabinet and power supply cables to be installed, which affects the commissioning progress.
A single-unit debugging and control system for electric valves was designed. The system connects to the power supply line via a power supply unit and utilizes a valve control module and a fault detection module to independently control the opening and closing of the electric valves and detect faults, thereby achieving autonomous debugging.
Even before the auxiliary equipment is installed, the electric valves can be debugged independently, which improves debugging efficiency and avoids delays caused by waiting for the installation of facilities.
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Figure CN116045054B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of valve control, in particular to a single debugging control system of an electric valve. BACKGROUND
[0002] The electric valve is a valve using an electric actuator to control the opening and closing of the valve, which has the advantages of large actuating torque and adjustable actuating speed, and is widely used in various industrial scenes. Common electric valves include mechanical switch type electric valves, which usually include a valve body for containing a conveying object, a valve disc for blocking a flow passage, and a motor for driving the valve disc to open and close. The motor is connected to an external control cabinet or PLC device, and the opening and closing speed of the valve is realized by controlling the speed and direction of the motor.
[0003] In the prior art, in order to achieve good valve stability, it is usually required to debug the valve after installation, by inputting a specific current to the motor to test whether the valve can be normally opened and closed, and reading the sensor signals provided on the valve, so as to determine whether the valve can achieve the expected function.
[0004] However, in the actual implementation process, the inventor found that in the process of debugging the single valve, it is often necessary to wait for the installation and debugging of the control cabinet, control cable, and power cable of the control cabinet corresponding to the valve to be in place, which affects the overall debugging progress of the valve. SUMMARY
[0005] In view of the above problems in the prior art, a single debugging control system of an electric valve is provided.
[0006] The specific technical solutions are as follows:
[0007] A single debugging control system of an electric valve is suitable for debugging an electric valve with a three-phase motor, comprising:
[0008] A power extractor, the input end of the power extractor is connected to the power supply line of the electric valve;
[0009] A valve control module, the valve control module is connected to the forward contactor and the reverse contactor of the electric valve and the power extractor;
[0010] A fault detection module, the fault detection module is connected to the fault signal output end of the electric valve and the valve control module, so that the valve control module outputs a fault indication signal and stops the three-phase motor when a fault occurs in the three-phase motor.
[0011] On the other hand, the valve control module comprises:
[0012] A valve opening module, a first end of the valve opening module is connected to a positive pole of the power taker, a second end of the valve opening module is connected to a negative pole of the power taker, a control end of the valve opening module is connected to the forward contactor, so that the forward contactor is closed or opened under the control of the valve opening module;
[0013] A valve closing module, a first end of the valve closing module is connected to the positive pole of the power taker, a second end of the valve closing module is connected to the negative pole of the power taker, a control end of the valve closing module is connected to the reverse contactor, so that the reverse contactor is closed or opened under the control of the valve closing module.
[0014] In another aspect, the valve opening module comprises:
[0015] A valve opening button, a first end of the valve opening button is connected to the first end of the valve opening module, a first control end of the valve opening module is connected between the first end of the valve opening button and a second end of the valve opening button;
[0016] The first control end of the valve opening module is connected to a normally open contact of the forward contactor;
[0017] A second control end of the valve opening module is arranged between the second end of the valve opening button and the second end of the valve opening module, and the second control end of the valve opening module is connected to a coil end of the forward contactor;
[0018] A valve full closing indicator, a first end of the valve full closing indicator is connected to the first end of the valve opening button, and a second end of the valve full closing indicator is connected to the second end of the valve opening module.
[0019] In another aspect, the valve closing module comprises:
[0020] A valve closing button, a first end of the valve closing button is connected to the first end of the valve closing module, a first control end of the valve closing module is connected between the first end of the valve closing button and a second end of the valve closing button;
[0021] The first control end of the valve closing module is connected to a normally open contact of the reverse contactor;
[0022] A second control end of the valve closing module is arranged between the second end of the valve closing button and the second end of the valve closing module, and the second control end of the valve closing module is connected to a coil end of the reverse contactor;
[0023] A valve full opening indicator, a first end of the valve full opening indicator is connected to the first end of the valve closing button, and a second end of the valve full opening indicator is connected to the second end of the valve opening module.
[0024] In another aspect, the opening valve module further comprises a third control terminal, the third control terminal of the opening valve module is arranged between the second end of the opening valve button and the second control terminal of the opening valve module, and the third control terminal of the opening valve module is connected to the normally closed contact of the reverse contactor.
[0025] In another aspect, the closing valve module further comprises a third control terminal, the third control terminal of the closing valve module is arranged between the second end of the closing valve button and the second control terminal of the closing valve module, and the third control terminal of the closing valve module is connected to the normally closed contact of the forward contactor.
[0026] In another aspect, the fault detection module comprises:
[0027] An opening valve fault detection module, a signal input terminal of the opening valve fault detection module is connected to an opening valve fault signal output terminal of the electric valve, and the opening valve fault detection module is connected to the first end of the opening valve module, so as to block the input current of the opening valve module according to a first fault signal output by the opening valve fault signal output terminal;
[0028] A closing valve fault detection module, a signal input terminal of the closing valve fault detection module is connected to a closing valve fault signal output terminal of the electric valve, and the closing valve fault detection module is connected to the first end of the closing valve module, so as to block the input current of the closing valve module according to a second fault signal output by the closing valve fault signal output terminal.
[0029] In another aspect, the opening valve fault detection module comprises a first relay and an opening valve fault lamp.
[0030] The signal input terminal of the opening valve fault detection module, the coil end of the first relay are sequentially arranged between the positive electrode of the power taker and the negative electrode of the power taker.
[0031] The normally closed contact of the first relay is arranged between the positive electrode of the power taker and the first end of the opening valve module.
[0032] The first end of the opening valve fault lamp is connected to the positive electrode of the power taker through the normally open contact of the first relay, and the second end of the opening valve fault lamp is connected to the negative electrode of the power taker.
[0033] In another aspect, the closing valve fault detection module comprises a second relay and a closing valve fault lamp.
[0034] The signal input terminal of the closing valve fault detection module, the coil end of the second relay are sequentially arranged between the positive electrode of the power taker and the negative electrode of the power taker.
[0035] The normally closed contact of the second relay is arranged between the positive electrode of the power taker and the first end of the closing valve module.
[0036] The first end of the valve fault lamp is connected to the positive pole of the power taker through the normally closed contact of the second relay, and the second end of the valve fault lamp is connected to the negative pole of the power taker.
[0037] The above technical solution has the following advantages or beneficial effects: by setting an independent single debugging control system, the power taker can take power from the power supply line and control the opening and closing of the valve when the auxiliary equipment is not installed, and the fault detection module reads the electrical signal output by the valve during the opening and closing process, thereby achieving better single debugging effect without relying on other auxiliary facilities. BRIEF DESCRIPTION OF DRAWINGS
[0038] Reference will be made to the accompanying drawings to more fully describe embodiments of the present application. However, the accompanying drawings are only used for illustration and explanation, and do not constitute a limitation on the scope of the present application.
[0039] Figure 1 is a schematic diagram of the whole embodiment of the present application;
[0040] Figure 2 is a schematic diagram of the control panel of the embodiment of the present application. DETAILED DESCRIPTION
[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0042] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0043] The present application will be further described below with reference to the accompanying drawings and specific embodiments, but not as a limitation of the present application.
[0044] The present application includes:
[0045] A single debugging control system for an electric valve is suitable for debugging an electric valve with a three-phase motor, such as Figure 1 as shown, comprising:
[0046] A power taker 2, the input end of the power taker 2 is connected to the power supply line of the electric valve;
[0047] A valve control module, the valve control module is connected to the forward contactor 102 and the reverse contactor 103 of the electric valve, and the power taker 2;
[0048] The fault detection module is connected with the fault signal output end of the electric valve and the valve control module, so that the valve control module outputs a fault indication signal and stops the three-phase motor when a fault occurs in the control of the three-phase motor.
[0049] Specifically, for the debugging work of the existing single valve, the control cabinet corresponding to the single valve needs to be installed and powered on before the debugging work, which is affected by the progress of the overall debugging work. In the embodiment, by constructing the single debugging control system, the power supply line for supplying power to the three-phase motor is powered by the power taker, and the valve control module is used to control the forward contactor or the reverse contactor of the electric valve to control the current direction of the input three-phase motor, so as to verify whether the electric valve can normally open and close. At the same time, in the process of controlling the opening and closing of the electric valve, the fault detection module receives the fault signal output end of the electric valve, receives the corresponding fault signal and indicates, so as to verify the fault alarm function of the electric valve and avoid damage to the valve during testing.
[0050] As an optional embodiment, the power taker 2 comprises a 380V / 220V-24V voltage converter for reducing the three-phase 380V voltage or 220V voltage to 24V, and a corresponding connection plug. The single debugging control system described above is a separate test device, device, test cabinet, etc. during implementation, which is movably arranged near the valve, and the power supply line L1, L2, L3 is powered by the power taker 2, and the forward contactor 102 and the reverse contactor 103 of the three-phase motor 101 of the electric valve are connected to realize the control process of the electric valve.
[0051] During implementation, if a circuit breaker 104 is arranged on the power supply line where the three-phase motor 101 is arranged, the power taker 2 should be arranged behind the circuit breaker 104 and close to one side of the three-phase motor 101.
[0052] In one embodiment, the valve control module comprises:
[0053] The valve opening module 31 has a first end connected to the positive pole of the power taker, a second end connected to the negative pole of the power taker 2, and a control end connected to the forward contactor 102, so that the forward contactor 102 is closed or opened under the control of the valve opening module 31.
[0054] The valve closing module 32 has a first end connected to the positive pole of the power taker 2, a second end connected to the negative pole of the power taker 2, and a control end connected to the reverse contactor 103, so that the reverse contactor 103 is closed or opened under the control of the valve closing module 32.
[0055] Specifically, to achieve a better verification effect on the opening and closing valve function of the electric valve, in the embodiment, the opening valve module 31 is connected to the power supply, and the forward contactor 102 is controlled to be closed or opened, so as to control the opening process and the opening degree of the valve; and the closing valve module 32 is connected to the reverse contactor 103 of the three-phase motor, and the reverse contactor 103 is controlled to be closed or opened, so as to control the closing process and the closing degree of the valve.
[0056] In one embodiment, the opening valve module 31 comprises:
[0057] The first end of the opening valve button 311 is connected to the first end of the opening valve module 31, and the first control end of the opening valve module 31 is connected between the first end of the opening valve button 311 and the second end of the opening valve button 311.
[0058] The first control end of the opening valve module 31 is connected to the normally open contact of the forward contactor 1021.
[0059] The second control end of the opening valve module 31 is arranged between the second end of the opening valve button 311 and the second end of the opening valve module 31, and the second control end of the opening valve module 31 is connected to the coil end 1023 of the forward contactor 102.
[0060] The first end of the valve full closing indicator 312 is connected to the first end of the opening valve button 311, and the second end of the valve full closing indicator 312 is connected to the second end of the opening valve module 31.
[0061] Specifically, to achieve a better control effect on the valve, in the opening valve module 31, the opening valve button 311 is connected to the coil end 1023 of the forward contactor 102. When the opening valve button 311 is not engaged, the current flows from the contactor 2 to the opening valve module 31, and is broken at the opening valve button 311 and the normally open contact 1021 of the forward contactor 103. At this time, the coil end 1023 of the forward contactor 102 is not electrified, and the forward contactor 102 is opened. When the opening valve button 311 is pressed, the current flows from the opening valve button 311 to the coil end 1023, so that the forward contactor is attracted, the three-phase motor 101 rotates in the forward direction, and the valve is actuated in the opening valve direction. The opening valve button 311 is a self-resetting button, and the circuit is automatically disconnected when it is released.
[0062] Further, to achieve a better indication effect, in the embodiment, a valve full-closing indication lamp is arranged, when the valve opening button 311 and the forward contactor 103 are both disconnected, the current flows from the first end of the valve opening module 31 to the second end of the valve opening module 31 through the valve full-closing indication lamp 312, and the valve full-closing indication lamp 312 emits light; when the valve opening button 311 is pressed, the normally open contact 1021 of the forward contactor 102 is engaged, and then the current on the valve full-closing indication lamp 312 flows to the second end of the valve opening module 31 along the normally open contact 1021, the normally closed contact 1032 of the reverse contactor 103 and the coil end 1023 of the forward contactor, at this time, the valve full-closing indication lamp 312 is extinguished.
[0063] In one embodiment, the valve closing module 32 comprises:
[0064] A valve closing button 321, a first end of the valve closing button 321 is connected to the first end of the valve closing module 32, and a first control end of the valve closing module 32 is connected between the first end of the valve closing button 321 and a second end of the valve closing button 321;
[0065] The first control end of the valve closing module 32 is connected to the normally open contact 1031 of the reverse contactor 103;
[0066] A second control end of the valve closing module 32 is arranged between the second end of the valve closing button 321 and the second end of the valve opening module 31, and the second control end of the valve closing module 32 is connected to the coil end 1033 of the reverse contactor 103;
[0067] A valve full-opening indication lamp 322, a first end of the valve full-opening indication lamp 322 is connected to the first end of the valve closing button 321, and a second end of the valve full-opening indication lamp 322 is connected to the second end of the valve closing module 32.
[0068] Specifically, to achieve a better control effect on the valve, in the embodiment, the valve closing button 321 in the valve closing module 32 is connected to the coil end 1033 of the reverse contactor 103. When the valve closing button 321 is not engaged, the current flows from the contactor 2 into the valve closing module 32, and is disconnected at the valve closing button 321 and the normally closed contact 1031 of the reverse contactor 103, at this time, the coil end 1033 of the reverse contactor 103 is not electrified, and the reverse contactor 103 is disconnected. When the valve closing button 321 is pressed, the current flows from the valve closing button 321 into the coil end 1033 to make the reverse contactor attract, and the three-phase motor 101 rotates reversely to make the valve act in the valve closing direction. The valve closing button 321 is a self-resetting button, and the circuit is automatically disconnected when it is released.
[0069] Further, to achieve a better indication effect, in the embodiment, a valve full-closing indication lamp is arranged, when the valve closing button 321 and the forward contactor 103 are both disconnected, the current flows from the first end of the valve closing module 32 to the second end of the valve closing module 32 through the valve full-closing indication lamp 322, and the valve full-closing indication lamp 322 emits light; when the valve closing button 321 is pressed, the normally open contact 1031 of the reverse contactor 103 is engaged, and then the current on the valve full-closing indication lamp 322 flows to the second end of the valve closing module 32 through the normally open contact 1031, the normally closed contact 1022 of the forward contactor 102, and the coil end 1033 of the reverse contactor 103, at this time, the valve full-closing indication lamp 322 is extinguished.
[0070] In one embodiment, the valve opening module 31 further comprises a third control end, the third control end of the valve opening module 31 is arranged between the second end of the valve opening button 311 and the second control end of the valve opening module 31, and the third control end of the valve opening module 31 is connected to the normally closed contact 1032 of the reverse contactor 103.
[0071] In one embodiment, the valve closing module 32 further comprises a third control end, the third control end of the valve closing module 32 is arranged between the second end of the valve closing button 321 and the second control end of the valve closing module 32, and the third control end of the valve closing module 32 is connected to the normally closed contact 1022 of the forward contactor 102.
[0072] Specifically, to achieve a better control effect on the valve, in the embodiment, a third control end is arranged in the valve opening module 31 and connected to the normally closed contact 1032 of the reverse contactor 103, so that when the valve closing button 321 is not pressed, the circuit remains in a normally closed state. When the valve opening button 311 is pressed and the valve closing button 321 is popped up, the current flows into the coil end 1023 of the forward contactor 102 through the normally closed contact 1032. At this time, if the valve closing button 321 is pressed, the current is blocked by the normally closed contact 1022 of the forward contactor in the open state after flowing through the valve closing button 321, avoiding the problem that the forward contactor 102 and the reverse contactor 103 are opened at the same time, causing damage to the three-phase motor 101.
[0073] In one embodiment, the fault detection module comprises:
[0074] The valve opening fault detection module 41, the signal input end of the valve opening fault detection module 41 is connected to the valve opening fault signal output end SIG1 of the electric valve, and the valve opening fault detection module 41 is connected to the first end of the valve opening module 31, for blocking the input current of the valve opening module 31 according to the first fault signal output by the valve opening fault signal output end SIG1;
[0075] The signal input end of the closing valve fault detection module 42 is connected to the signal output end SIG2 of the closing valve fault signal of the electric valve, the first end of the closing valve fault detection module 42 is connected to the first end of the closing valve module 32, and the input current of the closing valve module is blocked according to the second fault signal output by the signal output end SIG2.
[0076] In one embodiment, the opening valve fault detection module 41 includes a first relay and an opening valve fault lamp 412;
[0077] The signal input end of the opening valve fault detection module 41, the coil end 4113 of the first relay are sequentially arranged between the output end of the power extractor 2 and the negative electrode connected to the power extractor 2;
[0078] The normally closed contact 4112 of the first relay is arranged between the output end of the power extractor 2 and the first end of the opening valve module 32;
[0079] The first end of the opening valve fault lamp 412 is connected to the output end of the power extractor 2 through the normally open contact 4111 of the first relay, and the second end of the opening valve fault lamp 412 is connected to the negative electrode of the power extractor 2.
[0080] Specifically, for the motor-driven electric valve, in the opening valve process, there is an over-opening fault, that is, the motor does not stop rotating when the valve is opened to the full opening state, in the embodiment, the first relay is arranged, the coil end 4113 of the first relay is connected to the signal input end, when the opening valve fault signal output end SIG1 outputs a high-level alarm signal, the high level flows into the coil end 4113 of the first relay, the coil of the first relay is electrified to be closed, so that the state of the first relay is switched, the normally closed contact 4112 is disconnected and the normally open contact 4111 is connected, and then the inflow current of the first end of the opening valve module 31 is blocked, thereby avoiding the damage of the over-opening fault to the valve, at the same time, through the connection of the normally open contact 4111, the opening valve fault lamp 412 is electrified to emit light, and then outputs the opening valve fault lamp light signal as a fault indication.
[0081] In one embodiment, the closing valve fault detection module 42 includes a second relay and a closing valve fault lamp 422;
[0082] The signal input end of the closing valve fault detection module 42, the coil end 4213 of the second relay are sequentially arranged between the output end of the power extractor 2 and the negative electrode of the power extractor 2;
[0083] The normally closed contact 4211 of the second relay is arranged between the output end of the power extractor 2 and the first end of the closing valve module 32;
[0084] The first end of the close valve fault light 422 is connected to the output end of the power extractor 2 through the normally closed contact 4212 of the second relay, and the second end of the close valve fault light 422 is connected to the negative electrode of the power extractor 2.
[0085] Specifically, for the motor-driven electric valve, in the opening process, there is a problem of over-opening fault, that is, the motor does not stop rotating when the valve is opened to the full open state. In the embodiment, the second relay is provided, and the coil end 4213 of the second relay is connected with the signal input end. When the high-level alarm signal is output from the close valve fault signal output end SIG2, the high-level flows into the coil end 4213 of the second relay, the coil of the second relay is energized to be closed, so that the state of the second relay is switched, the normally closed contact 4212 is disconnected and the normally open contact 4211 is connected, and then the inflow current of the first end of the close valve module 32 is blocked, thereby avoiding the damage of the over-opening fault to the valve. At the same time, through the connection of the normally open contact 4211, the open valve fault light 422 is powered to emit light, and then outputs the open valve fault light signal as a fault indication.
[0086] As an optional embodiment, a power indicator light 5 is further included. The first end of the power indicator light 5 is connected to the positive electrode of the power extractor 2, and the second end of the power indicator light 5 is connected to the negative electrode of the power extractor 2. When the power extractor 2 is normally powered, the current flows from the positive electrode of the power extractor 2 through the power indicator light 5 and flows into the negative electrode of the power extractor 2, so that the power indicator light 5 emits light.
[0087] As an optional embodiment, as shown in Figure 2 A housing is further provided, in which the single-body debugging control system is arranged. One side of the housing is provided with a control panel.
[0088] The control panel is provided with the power indicator light 5, the valve full-closed indicator light 312, the valve full-open indicator light 322, the open valve fault light 412 and the close valve fault light 422. The power indicator light 5, the valve full-closed indicator light 312, the valve full-open indicator light 322, the open valve fault light 412 and the close valve fault light 422 have different colors.
[0089] The control panel is further provided with the open valve button 311 and the close valve button 321, which have different colors.
[0090] The above is only the preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application. It should be realized by those skilled in the art that any equivalent replacement and obvious change made according to the content of the present application should be included in the protection scope of the present application.
Claims
1. A single unit commissioning control system for an electrically powered valve, characterized by, The application is suitable for debugging electric valve with three-phase motor, comprising: a power taker, the input end of the power taker is connected to the power supply line of the electric valve; a valve control module, the valve control module is connected to the forward contactor and reverse contactor of the electric valve and the power taker; a fault detection module, the fault detection module is connected to the fault signal output end of the electric valve and the valve control module, so that the valve control module outputs fault indication signal and stops the three-phase motor when the three-phase motor fails; the valve control module comprises: an open valve module, the first end of the open valve module is connected to the positive pole of the power taker, the second end of the open valve module is connected to the negative pole of the power taker, and the control end of the open valve module is connected to the forward contactor, so that the forward contactor is closed or opened under the control of the open valve module; a close valve module, the first end of the close valve module is connected to the positive pole of the power taker, the second end of the close valve module is connected to the negative pole of the power taker, and the control end of the close valve module is connected to the reverse contactor, so that the reverse contactor is closed or opened under the control of the close valve module; the open valve module comprises: an open valve button, the first end of the open valve button is connected to the first end of the open valve module, and the first control end of the open valve module is connected between the first end of the open valve button and the second end of the open valve button; the first control end of the open valve module is connected to the normally open contact of the forward contactor; the second control end of the open valve module is arranged between the second end of the open valve button and the second end of the open valve module, and the second control end of the open valve module is connected to the coil end of the forward contactor; a valve full close indication lamp, the first end of the valve full close indication lamp is connected to the first end of the open valve button, and the second end of the valve full close indication lamp is connected to the second end of the close valve module; the close valve module comprises: a close valve button, the first end of the close valve button is connected to the first end of the close valve module, and the first control end of the close valve module is connected between the first end of the close valve button and the second end of the close valve button; the first control end of the close valve module is connected to the normally open contact of the reverse contactor; the second control end of the close valve module is arranged between the second end of the close valve button and the second end of the open valve module, and the second control end of the close valve module is connected to the coil end of the reverse contactor; a valve full open indication lamp, the first end of the valve full open indication lamp is connected to the first end of the close valve button, and the second end of the valve full open indication lamp is connected to the second end of the open valve module.
2. The individual commissioning control system of claim 1, wherein, the open valve module further comprises a third control end, the third control end of the open valve module is arranged between the second end of the open valve button and the second control end of the open valve module, and the third control end of the open valve module is connected to the normally closed contact of the reverse contactor.
3. The unit commissioning control system of claim 1, wherein, The closing valve module further comprises a third control end, the third control end of the closing valve module is arranged between the second end of the closing valve button and the second control end of the closing valve module, and the third control end of the closing valve module is connected to the normally closed contact of the forward contactor.
4. The unit commissioning control system of claim 1, wherein, The fault detection module comprises: The opening valve fault detection module is connected to the first end of the opening valve module, and is used for blocking the input current of the opening valve module according to the first fault signal output by the opening valve fault signal output end. The closing valve fault detection module is connected to the first end of the closing valve module, and is used for blocking the input current of the closing valve module according to the second fault signal output by the closing valve fault signal output end.
5. The individual commissioning control system of claim 4, wherein, The opening valve fault detection module comprises a first relay and an opening valve fault lamp; The signal input end of the opening valve fault detection module, the coil end of the first relay are sequentially arranged between the positive electrode of the power receiver and the negative electrode of the power receiver; The normally closed contact of the first relay is arranged between the positive electrode of the power receiver and the first end of the opening valve module; The first end of the opening valve fault lamp is connected to the positive electrode of the power receiver through the normally open contact of the first relay, and the second end of the opening valve fault lamp is connected to the negative electrode of the power receiver.
6. The individual commissioning control system of claim 4, wherein, The closing valve fault detection module comprises a second relay and a closing valve fault lamp; The signal input end of the closing valve fault detection module, the coil end of the second relay are sequentially arranged between the positive electrode of the power receiver and the negative electrode of the power receiver; The normally closed contact of the second relay is arranged between the positive electrode of the power receiver and the first end of the closing valve module; The first end of the closing valve fault lamp is connected to the positive electrode of the power receiver through the normally closed contact of the second relay, and the second end of the closing valve fault lamp is connected to the negative electrode of the power receiver.
Citation Information
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