A pumping station gate operation simulation system with a two-way X-shaped flow channel

Abstract

The present invention provides a pumping station gate operation simulation system with a two-way X-shaped flow channel, comprising: an industrial control computer, a PLC control cabinet, a gate opening and closing control cabinet, and a charging unit; the PLC control cabinet is preset with gate action signals and brake action signals for multiple working conditions; the industrial control computer is connected to the PLC control cabinet, and the industrial control computer is provided with a display terminal. The industrial control computer is used to send remote operation instructions to control the signals of the PLC control cabinet and generate corresponding gate action signals and brake action signals when remotely simulating a certain working condition; the gate opening and closing control cabinet is connected to the PLC control cabinet, and the gate opening and closing control cabinet is used to simulate the gate action according to the gate action signals and brake action signals and return the real-time state of the gate to the display terminal. It visually shows the action process of the inlet and outlet gates on both sides of the X-shaped flow channel, which is beneficial for users to deeply understand and master the working principle of the pumping station gates of the two-way X-shaped flow channel, understand the maintenance and repair under different fault states, and is applicable to employee training and fault simulation.

Description

Technical Field

[0001] The present invention belongs to the technical field of water conservancy and hydropower engineering, and more specifically, relates to a pumping station gate operation simulation system for a two-way X-shaped flow channel. Background Technique

[0002] The two-way X-shaped flow channel is a common water inlet and outlet structure in pumping stations, with four major functions: pumping discharge, self-discharge, pumping irrigation, and self-irrigation. The pumping station units mainly rely on the mutual cooperation of the gate opening and closing systems on both sides to operate under corresponding working conditions.

[0003] Since the operation of the pumping station units involves multiple systems such as the excitation system, water supply system, and protection system, and all of them are daily operating equipment with high costs, they cannot be frequently used for employee training and fault simulation.

[0004] Therefore, it is necessary to design a pumping station gate operation simulation system for a two-way X-shaped flow channel to remotely or on-site simulate the operation control of the opening and closing actions of the water inlet and outlet gates on both sides of the X-shaped flow channel and conduct fault troubleshooting through an industrial control computer. Summary of the Invention

[0005] The present invention provides a pumping station gate operation simulation system for a two-way X-shaped flow channel. The industrial control computer controls the signals of the PLC control cabinet and the gate opening and closing control cabinet, simulates the actions of the pumping station gates, and returns the real-time state of the gates and the fault state when a fault occurs to the display terminal of the industrial control computer, which is beneficial for users to deeply understand and master the working principle of the pumping station gates of the two-way X-shaped flow channel, understand the repair and maintenance of electrical equipment facilities under different fault states, lay a foundation for practical operation, and is applicable to employee training and fault simulation.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] A pumping station gate operation simulation system for a two-way X-shaped flow channel, comprising:

[0008] An industrial control computer, a PLC control cabinet, a gate opening and closing control cabinet, and a charging unit;

[0009] The PLC control cabinet is preset with gate action signals and brake action signals for multiple working conditions;

[0010] The industrial control computer is connected to the PLC control cabinet. The industrial control computer is provided with a display terminal, and the industrial control computer is used to send remote operation instructions to control the signals of the PLC control cabinet and generate the corresponding gate action signals and brake action signals when remotely simulating a certain working condition;

[0011] The gate opening and closing control cabinet is connected to the PLC control cabinet. The gate opening and closing control cabinet is used to simulate the gate action according to the gate action signal and the brake action signal and return the real-time state of the gate to the display terminal;

[0012] The gate opening and closing control cabinet includes:

[0013] The main circuit, which is used to simulate the start and stop of the gate opening and closing motor;

[0014] The control circuit, which is used to simulate the actions of each inlet and outlet gate and the corresponding gate fault states;

[0015] The brake circuit, which is used to simulate the brake actions of each inlet and outlet gate and the corresponding brake fault states;

[0016] The charging unit is connected to the gate opening and closing control cabinet, and the charging unit is used to provide the working power supply for the gate opening and closing control cabinet.

[0017] Preferably, the gate opening and closing control cabinet is provided with a field simulation device. The field simulation device is used to simulate the gate action corresponding to a certain working condition according to the field operation instruction and return the real-time state of the gate to the display terminal. Among them, the field simulation and the remote simulation run in parallel and can interact with each other.

[0018] Preferably, the main circuit includes a first motor opening and closing circuit, a second motor opening and closing circuit, a third motor opening and closing circuit, and a fourth motor opening and closing circuit;

[0019] The first motor opening and closing circuit and the second motor opening and closing circuit are used to simulate the opening and closing of the motors of the inlet and outlet gates on the outer river side, and the third motor opening and closing circuit and the fourth motor opening and closing circuit are used to simulate the opening and closing of the motors of the inlet and outlet gates on the inner river side;

[0020] The first motor opening and closing circuit, the second motor opening and closing circuit, the third motor opening and closing circuit, and the fourth motor opening and closing circuit all include a first low-voltage circuit breaker, a motor interlock switch, a thermal relay, and a gate motor connected in sequence. Among them, the first motor opening and closing circuit and the second motor opening and closing circuit are connected in parallel and then connected to a first AC power supply through a second low-voltage circuit breaker, and the third motor opening and closing circuit and the fourth motor opening and closing circuit are connected in parallel and then connected to a second AC power supply through a third low-voltage circuit breaker.

[0021] Preferably, the control circuit includes a first gate control circuit, a second gate control circuit, a third gate control circuit, and a fourth gate control circuit connected in parallel. The first gate control circuit and the second gate control circuit are used to simulate the lifting of the inlet and outlet gates on the outer river side, and the third gate control circuit and the fourth gate control circuit are used to simulate the lifting of the inlet and outlet gates on the inner river side;

[0022] Each gate control circuit is connected to the corresponding motor opening / closing circuit of each path through a switch circuit;

[0023] Each gate control circuit includes a parallel-connected gate opening circuit and a gate closing circuit. The gate opening circuit and the gate closing circuit are interlocked through a first gate interlock switch. The gate opening circuit includes a first intermediate relay, a gate opening switch group, a first AC contactor, and a second switch. The gate closing circuit includes a second intermediate relay, a gate closing switch group, a second AC contactor, and a first switch. Among them, the first switch is the normally closed switch of the first AC contactor, and the second switch is the normally closed switch of the second AC contactor;

[0024] The gate opening switch group includes a remotely controlled gate opening switch, a field gate opening switch, and a gate opening self-locking switch that are connected in parallel and are all normally open. The gate closing switch group includes a remotely controlled gate closing switch, a field gate closing switch, and a gate closing self-locking switch that are connected in parallel and are all normally open;

[0025] The first intermediate relay of the first gate control circuit is used to simulate the opening of the outer river side intake gate according to the outer river side intake gate open signal. The second intermediate relay of the first gate control circuit is used to simulate the closing of the outer river side intake gate according to the outer river side intake gate close signal. The first intermediate relay of the second gate control circuit is used to simulate the opening of the outer river side discharge gate according to the outer river side discharge gate open signal. The second intermediate relay of the first gate control circuit is used to simulate the closing of the outer river side discharge gate according to the outer river side discharge gate close signal. The first intermediate relay of the third gate control circuit is used to simulate the opening of the inner river side intake gate according to the inner river side intake gate open signal. The second intermediate relay of the third gate control circuit is used to simulate the closing of the inner river side intake gate according to the inner river side intake gate close signal. The first intermediate relay of the fourth gate control circuit is used to simulate the opening of the inner river side discharge gate according to the inner river side discharge gate open signal. The second intermediate relay of the fourth gate control circuit is used to simulate the closing of the inner river side discharge gate according to the inner river side discharge gate close signal.

[0026] Preferably, the first intermediate relay and the second intermediate relay in each gate control circuit each include a remote simulation contact switch and a field simulation contact switch. The opening and closing conditions of the contacts of the first intermediate relay and the second intermediate relay simulate the gate action and feedback the real-time state and fault state of the gate.

[0027] Preferably, the brake circuit includes a first brake control circuit, a second brake control circuit, a third brake control circuit, and a fourth brake control circuit connected in parallel, wherein the first brake control circuit and the second brake control circuit are used to simulate the brake of the inlet and outlet gates on the outer river side, and the third brake control circuit and the fourth brake control circuit are used to simulate the brake of the inlet and outlet gates on the inner river side;

[0028] Each brake control circuit includes a brake switch group and a first DC contactor. The brake switch group includes a remote brake emergency switch, an on-site brake emergency switch, a third switch and a fourth switch that are connected in parallel and are all normally open. The third switch is the normally open switch of the first AC contactor, and the fourth switch is the normally open switch of the second AC contactor. The interlocked third switch and the fourth switch are linked to the interlocked first switch and the second switch for simulating the synchronous action of each brake control circuit and each corresponding gate control circuit.

[0029] Preferably, the control loop also includes a host shutdown circuit connected in parallel with the first gate control circuit, and the host shutdown circuit includes a third intermediate relay and a fourth low-voltage circuit breaker. The contact opening and closing status of the third intermediate relay is used to simulate the host shutdown or accident shutdown action and feedback the real-time status and fault status of the gate.

[0030] Preferably, the control loop also includes a host tripping circuit connected in parallel with the first gate control circuit, the host tripping circuit includes a fourth intermediate relay and a first time relay, and the contact opening and closing status of the fourth intermediate relay is used to simulate the host tripping action and feedback the real-time status and fault status of the gate.

[0031] Preferably, the control loop also includes a first power supply monitoring circuit connected in parallel with the first gate control circuit, and the power supply monitoring circuit includes a fifth intermediate relay, and the contact opening and closing status of the fifth intermediate relay is used to simulate the power supply monitoring action of the control loop and feedback the power supply fault status of the first control loop.

[0032] Preferably, the control circuit also includes a second power supply monitoring circuit connected in parallel with the first brake control circuit, and the second power supply monitoring circuit includes a sixth intermediate relay, and the contact opening and closing status of the sixth intermediate relay is used to simulate the power supply monitoring action of the brake circuit and feedback the power supply fault status of the brake circuit.

[0033] The beneficial effects of the technical solution of the present invention are:

[0034] When the industrial control computer remotely simulates a certain working condition in the present invention, it sends a remote operation instruction to control the signals of the PLC control cabinet and generates corresponding gate action signals and brake action signals. The gate opening and closing control cabinet simulates the gate action according to the gate action signals and brake action signals and returns the real-time state of the gate and the fault state when a fault occurs to the display terminal, visually showing the action process of the inlet and outlet gates on both sides of the X-shaped flow channel, which is conducive to users' in-depth understanding and mastery of the working principle of the pump station gates of the two-way X-shaped flow channel, understanding the maintenance of electrical equipment facilities in different fault states, and laying a foundation for practical operation. The operation simulation system has low cost, high safety, high integration and strong professionalism, and is suitable for employee training and fault simulation.

[0035] Further, in the present invention, through the on-site simulation device provided in the gate opening and closing control cabinet, the user can operate on-site to simulate the gate action corresponding to a certain working condition and return the real-time state of the gate to the display terminal. The on-site simulation device of the gate opening and closing control cabinet is consistent with the on-site use equipment and can interact with the remote simulation, which is close to the actual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] By describing the exemplary embodiments of the present invention in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present invention will become more obvious. Among them, in the exemplary embodiments of the present invention, the same reference numerals generally represent the same components.

[0037] Figure 1 It is a schematic diagram of the overall structure of an operation simulation system for pump station gates of a two-way X-shaped flow channel of the present invention;

[0038] Figure 2 It is a circuit control diagram of the outer river side gate motor opening and closing circuit of an operation simulation system for pump station gates of a two-way X-shaped flow channel of the present invention;

[0039] Figure 3 It is a circuit control diagram of the inner river side gate motor opening and closing circuit of an operation simulation system for pump station gates of a two-way X-shaped flow channel of the present invention;

[0040] Figure 4 It is a circuit control diagram of the outer river side inlet and outlet gates of an operation simulation system for pump station gates of a two-way X-shaped flow channel of the present invention;

[0041] Figure 5 It is a circuit control diagram of the inner river side inlet and outlet gates of an operation simulation system for pump station gates of a two-way X-shaped flow channel of the present invention;

[0042] Figure 6 It is a circuit control diagram of the outer river side gate brake of an operation simulation system for pump station gates of a two-way X-shaped flow channel of the present invention;

[0043] Figure 7 This is the circuit control diagram of the inner river side gate brake of the pumping station gate operation simulation system with a two-way X-shaped flow channel of the present invention;

[0044] Figure 8 This is the contact schematic diagram of the working condition selection switch of the pumping station gate operation simulation system with a two-way X-shaped flow channel of the present invention;

[0045] Figure 9 This is the action schematic diagram of the gate travel switch of the pumping station gate operation simulation system with a two-way X-shaped flow channel of the present invention;

[0046] Figure 10 This is the schematic diagram of the two-way X-shaped flow channel of the pumping station gate operation simulation system with a two-way X-shaped flow channel of the present invention.

[0047] Explanation of reference numerals:

[0048] Industrial control computer 1; PLC control cabinet 2; Gate opening and closing control cabinet 3; Charging unit 4; Working condition conversion switch K; First inlet gate rising button 1K; First inlet gate descending button 2K; First inlet gate stop button 3K; First outlet gate rising button 4K; First outlet gate descending button 5K; First outlet gate stop button 6K; Remote brake emergency switches 7K, 8K; Second inlet gate rising button 1SB1; Second inlet gate descending button 1SB2; Second inlet gate stop button 1SB3; Second outlet gate rising button 2SB1; Second outlet gate descending button 1SB2; Second outlet gate stop button 2SB3; On-site brake emergency switches 3SB1, 3SB2; First low-voltage circuit breaker QF1, QF2; Thermal relays 1KH, 2KH; Gate motors 1MS, 2MS; First AC contactor 1KM; Second AC contactor 2KM; Third AC contactor 3KM; Fourth AC contactor 4KM; Second low-voltage circuit breaker QF3; Third low-voltage circuit breaker QF4; Fourth low-voltage circuit breaker 3QF; First intermediate relay 2SQA, 5SQA; Second intermediate relay 1SQA, 4SQA; Third intermediate relay 3KA; Fourth intermediate relay 4KA; Fifth intermediate relay 2KA; Sixth intermediate relay 1KA; First time relay 2KT; Second time relay 1KT, Brake electromagnets 1Y, 2Y; First DC contactor 5KM, 6KM; First indicator light 2GL; Second indicator light 8RL; Third indicator light 3GL; Fourth indicator light 9RL; Fifth indicator light 1RL; Sixth indicator light 2RL; Seventh indicator light 3RL; Eighth indicator light 4RL. Detailed implementation manners

[0049] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0050] As Figure 1 、 Figures 4 - 7 shown, the present invention provides a simulation system for the operation of a pumping station gate with a two-way X-shaped flow channel, including:

[0051] An industrial control computer 1, a PLC control cabinet 2, a gate opening and closing control cabinet 3, and a charging unit 4;

[0052] The PLC control cabinet 2 is preset with gate action signals and brake action signals for multiple working conditions;

[0053] The industrial control computer 1 is connected to the PLC control cabinet 2. The industrial control computer 1 is provided with a display terminal. The industrial control computer 1 is used to send remote operation instructions to control the PLC control cabinet 2 by signal and generate corresponding gate action signals and brake action signals when remotely simulating a certain working condition;

[0054] The gate opening and closing control cabinet 3 is connected to the PLC control cabinet 2. The gate opening and closing control cabinet 3 is used to simulate the gate action according to the gate action signal and the brake action signal and return the real-time state of the gate to the display terminal;

[0055] The gate opening and closing control cabinet 3 includes:

[0056] The main circuit, which is used to simulate the start and stop of the gate opening and closing motor;

[0057] The control circuit, which is used to simulate the actions of each inlet and outlet gate and the corresponding gate fault states;

[0058] The brake circuit, which is used to simulate the brake actions of each inlet and outlet gate and the corresponding brake fault states;

[0059] The charging unit is connected to the gate opening and closing control cabinet, and the charging unit is used to provide a working power supply for the gate opening and closing control cabinet.

[0060] Specifically, the industrial control computer 1 is provided with multiple analog switches, including a working condition conversion switch K, a motor start button, a first intake gate rising button 1K, a first intake gate lowering button 2K, a first intake gate stop button 3K, a first outlet gate rising button 4K, a first outlet gate lowering button 5K, and a first outlet gate stop button 6K. The analog switches on the inner river side and the outer river side are set the same. The PLC control cabinet 2 is preset with gate action signals and brake action signals for multiple working conditions. The working conditions include drainage, irrigation, water diversion, disconnection, etc. The contacts of the working condition conversion switch K correspond to different working conditions, such as Figure 8 shown. The gate action signals and brake action signals corresponding to each working condition are preset in the PLC control cabinet 2. The relay receives the remote operation instructions sent by the industrial control computer 1 when simulating a certain working condition, and performs simulation operations on the gate opening and closing control cabinet 3. The gate opening and closing control cabinet 3 includes: a main circuit for simulating the start and stop of the gate opening and closing motor, a control circuit for simulating the actions of each inlet and outlet gate, and a brake circuit for simulating the brake actions of each inlet and outlet gate. The gate opening and closing control cabinet 3 returns the real-time state of the gate and the fault state when a fault occurs to the display terminal of the industrial control computer 1 through the PLC control cabinet 2. As Figure 10 shown, it shows the software model of the pump station gate of the X-shaped flow channel of the display terminal. For example, in the drainage working condition, the water in the inner river is drained to the outer river. When the working condition selection switch K is turned to the drainage working condition, the corresponding gate actions include: before the main pump switch is turned on, press the first intake gate rising button 1K and the first outlet gate rising button 4K on the inner river side of the industrial control computer 1 to open the intake gate and the outlet gate on the inner river side first (opening the outlet gate is for pressure relief). After the main pump switch is closed, the time relay acts to automatically open the outer river side outlet gate. Then press the first outlet gate lowering button 5K to lower the inner river side outlet gate to the bottom. During the whole process, the intake gate on the outer river side remains closed and does not move. By operating this simulation system, the action process of the inlet and outlet gates on both sides of the X-shaped flow channel can be vividly and intuitively shown, which is beneficial for users to deeply understand and master the working principle of the pump station gate of the two-way X-shaped flow channel, understand the maintenance and repair of electrical equipment facilities in different fault states, and lay a foundation for actual operation. This operation simulation system has low cost, high safety, high integration, and strong professionalism, and is suitable for employee training and fault simulation.

[0061] Preferably, the charging unit 4 is a DC charging cabinet, which is composed of a DC charging mechanism and is used to convert 380V alternating current into 220V direct current.

[0062] A preferred example is that the gate opening and closing control cabinet 3 is provided with a field simulation device. The field simulation device is used to simulate the gate actions corresponding to a certain working condition according to the field operation instructions and return the real-time state of the gate to the display terminal. Among them, the field simulation and the remote simulation run in parallel and can interact with each other.

[0063] Specifically, the on-site simulation device provided in the gate opening and closing control cabinet 3 corresponds to multiple simulation switches provided at the end of the working condition machine 1. For example, the working condition conversion switch for on-site control, the second inlet gate rising button 1SB1, the second inlet gate falling button 1SB2, the second inlet gate stop button 1SB3, the second outlet gate rising button 2SB1, the second outlet gate falling button 1SB2, and the second outlet gate stop button 2SB3. These buttons are all indicator button switches. Among them, the first indicator light 2GL corresponding to the rising of the inlet gate is connected in series with the normally open contact switch of the first AC contactor 1KM; the second indicator light 8RL corresponding to the falling of the inlet gate is connected in series with the normally open contact switch of the second AC contactor 2KM; the third indicator light 3GL corresponding to the rising of the outlet gate is connected in series with the normally open contact switch of the third AC contactor 3KM; the fourth indicator light 9RL corresponding to the falling of the outlet gate is connected in series with the normally open contact switch of the fourth AC contactor 4KM, which is used to simulate the state display of the corresponding gate rising and opening or falling and closing. For example, in the state where the gate is fully open, the fully open indicator lights 2GL or 3GL are not on, simulating the following possible faults: (1) The indicator light is damaged; (2) The auxiliary contact of the intermediate relay is not closed. (3) The travel switch problem (including power failure, fuse burnout, Hall element failure, shaft misalignment, etc.). (4) The electrical circuit problem of the indicator light, such as poor contact, etc., which is beneficial for users to understand the maintenance of electrical equipment and facilities in different fault states. The on-site simulation device of the gate opening and closing control cabinet 3 is consistent with the on-site use equipment and can interact with the remote simulation of the working condition machine 1, being close to actual operation.

[0064] A preferred example is as Figure 2 , Figure 3 shown, the main circuit includes a first motor opening and closing circuit, a second motor opening and closing circuit, a third motor opening and closing circuit, and a fourth motor opening and closing circuit;

[0065] The first motor opening and closing circuit and the second motor opening and closing circuit are used to simulate the opening and closing of the motors of the inlet and outlet gates on the outer river side, and the third motor opening and closing circuit and the fourth motor opening and closing circuit are used to simulate the opening and closing of the motors of the inlet and outlet gates on the inner river side;

[0066] The first motor opening and closing circuit, the second motor opening and closing circuit, the third motor opening and closing circuit, and the fourth motor opening and closing circuit each include a first low-voltage circuit breaker, a motor interlock switch, a thermal relay, and a gate motor connected in sequence. Among them, the first motor opening and closing circuit and the second motor opening and closing circuit are connected in parallel and then connected to the first AC power supply through the second low-voltage circuit breaker, and the third motor opening and closing circuit and the fourth motor opening and closing circuit are connected in parallel and then connected to the second AC power supply through the third low-voltage circuit breaker.

[0067] Specifically, the first motor opening and closing circuit is the motor opening and closing circuit for the intake gate on the outer river side, which includes a first low-voltage circuit breaker QF1, a motor interlock switch, a thermal relay 1KH, and a gate motor 1MS connected in sequence. The contact switch of the first low-voltage circuit breaker QF1 is set to normally open. The motor interlock switch is the contact switches of the first AC contactor 1KM and the second AC contactor 2KM, which are connected in parallel and set to normally open to achieve the forward and reverse interlock of the intake gate motor. The second motor opening and closing circuit is the motor opening and closing circuit for the outlet gate on the outer river side, which includes a first low-voltage circuit breaker QF2, a motor interlock switch, a thermal relay 2KH, and a gate motor 2MS connected in sequence. The contact switch of the first low-voltage circuit breaker QF2 is set to normally open. The motor interlock switch is the contact switches of the third AC contactor 3KM and the fourth AC contactor 4KM, which are connected in parallel and set to normally open to achieve the forward and reverse interlock of the outlet gate motor. The third motor opening and closing circuit and the fourth motor opening and closing circuit are respectively the motor opening and closing circuits for the intake gate and the outlet gate on the inner river side, and their settings are the same as those on the outer river side. The first motor opening and closing circuit and the second motor opening and closing circuit are connected in parallel and then connected to the first AC power supply through the second low-voltage circuit breaker QF3 to simulate the opening and closing of the intake and outlet gate motors on the outer river side. The first AC power supply is 380V. The third motor opening and closing circuit and the fourth motor opening and closing circuit are connected in parallel and then connected to the second AC power supply through the third low-voltage circuit breaker QF4 to simulate the opening and closing of the intake and outlet gate motors on the inner river side. The second AC power supply is 380V. Each opening and closing circuit corresponds to a motor start button, and the motor start button is connected to the normally open contact switches of the first low-voltage circuit breakers QF1 and QF2.

[0068] A preferred example is as Figure 4 , Figure 5 shown. The control circuit includes a first gate control circuit, a second gate control circuit, a third gate control circuit, and a fourth gate control circuit connected in parallel. The first gate control circuit and the second gate control circuit are used to simulate the lifting of the intake and outlet gates on the outer river side, and the third gate control circuit and the fourth gate control circuit are used to simulate the lifting of the intake and outlet gates on the inner river side;

[0069] Each gate control circuit is connected to the corresponding motor opening and closing circuit through a switch circuit;

[0070] Each gate control circuit includes a gate opening circuit and a gate closing circuit connected in parallel. The gate opening circuit and the gate closing circuit are interlocked through a first gate interlock switch. The gate opening circuit includes a first intermediate relay, a gate opening switch group, a first AC contactor, and a second switch. The gate closing circuit includes a second intermediate relay, a gate closing switch group, a second AC contactor, and a first switch. Among them, the first switch is the normally closed switch of the first AC contactor, and the second switch is the normally closed switch of the second AC contactor;

[0071] The gate opening switch group includes a remote gate opening switch, a on-site gate opening switch, and a gate opening self-locking switch that are connected in parallel and are all normally open. The gate closing switch group includes a remote gate closing switch, a on-site gate closing switch, and a gate closing self-locking switch that are connected in parallel and are all normally open;

[0072] The first intermediate relay 2SQA of the first gate control circuit is used to simulate the opening of the outer river side intake gate according to the outer river side intake gate open signal. The second intermediate relay 1SQA of the first gate control circuit is used to simulate the closing of the outer river side intake gate according to the outer river side intake gate close signal. The first intermediate relay 5SQA of the second gate control circuit is used to simulate the opening of the outer river side outlet gate according to the outer river side outlet gate open signal. The second intermediate relay 4SQA of the first gate control circuit is used to simulate the closing of the outer river side outlet gate according to the outer river side outlet gate close signal. The first intermediate relay 2SQA of the third gate control circuit is used to simulate the opening of the inner river side intake gate according to the inner river side intake gate open signal. The second intermediate relay 1SQA of the third gate control circuit is used to simulate the closing of the inner river side intake gate according to the inner river side intake gate close signal. The first intermediate relay 5SQA of the fourth gate control circuit is used to simulate the opening of the inner river side outlet gate according to the inner river side outlet gate open signal. The second intermediate relay 4SQA of the fourth gate control circuit is used to simulate the closing of the inner river side outlet gate according to the inner river side outlet gate close signal.

[0073] Specifically, each gate control circuit is connected to the corresponding motor opening and closing circuit through a switch circuit. The switch circuit connected to the intake gate control circuit is sequentially connected in series with the normally closed contact switch of the thermal relay 1KH, the normally closed second intake gate stop button 1SB3, the normally closed first intake gate stop button 3K, and the normally open contact switch of the first low-voltage circuit breaker QF1. The switch circuit connected to the outlet gate control circuit is sequentially connected in series with the normally closed contact switch of the thermal relay 2KH, the normally closed second outlet gate stop button 2SB3, the normally closed first outlet gate stop button 6K, and the normally open contact switch of the first low-voltage circuit breaker QF2.

[0074] Each gate control circuit includes a gate opening circuit and a gate closing circuit connected in parallel. For example, the intake gate opening circuits on both sides both include the first intermediate relay 2SQA, the gate opening switch group, the first AC contactor 1KM, and the second switch. The intake gate closing circuits on both sides both include the second intermediate relay 1SQA, the gate closing switch group, the second AC contactor 2KM, and the first switch. Among them, the first switch is the normally closed switch of the first AC contactor 1KM, the second switch is the normally closed switch of the second AC contactor 2KM, and the gate opening circuit and the gate closing circuit are interlocked through the first gate interlock switch.

[0075] The gate opening switch group includes a remotely controlled gate opening switch (the first inlet valve rising button 1K), a local gate opening switch (the second inlet valve rising button 1SB1), and a gate opening self-locking switch (the normally open contact switch of the first AC contactor 1KM), all of which are in parallel and normally open. The gate closing switch group includes a remotely controlled gate closing switch (the first inlet valve descending button 2K), a local gate closing switch (the second inlet valve descending button 1SB2), and a gate closing self-locking switch (the normally open contact switch of the second AC contactor 2KM), all of which are in parallel and normally open.

[0076] The outlet gate opening circuits on both sides are the same as the inlet gate opening circuit. The differences are that the first intermediate relay is 5SQA, the first AC contactor is 3KM, the second switch is the normally closed switch of the second AC contactor 4KM, and the gate opening switch group includes a remotely controlled gate opening switch (the first outlet valve rising button 4K), a local gate opening switch (the second outlet valve rising button 2SB1), and a gate opening self-locking switch (the normally open contact switch of the first AC contactor 3KM). The outlet gate closing circuits on both sides are the same as the inlet gate closing circuit. The differences are that the second intermediate relay is 4SQA, the second AC contactor is 4KM, the first switch is the normally closed switch of the first AC contactor 3KM, and the gate closing switch group includes a remotely controlled gate closing switch (the first outlet valve descending button 5K), a local gate closing switch (the second outlet valve descending button 2SB2), and a gate closing self-locking switch (the normally open contact switch of the second AC contactor 4KM). It can be seen that the analog switches of the industrial control computer 1 and the switches in the local analog device of the gate opening and closing control cabinet 3 are combined and set in parallel or series, enabling parallel operation and interactive operation between local simulation and remote simulation.

[0077] The second intermediate relay 1SQA is connected in series with the lower limit switch contacts 1XXWD and 1XXWJ of the inlet gate travel switch, and the first intermediate relay 2SQA is connected in series with the upper limit switch contacts 1XXWD and 1XXWJ of the inlet gate travel switch. Similarly, the second intermediate relay 4SQA is connected in series with the lower limit switch contacts 2XXWD and 2XXWJ of the outlet gate travel switch, and the first intermediate relay 2SQA is connected in series with the upper limit switch contacts 2SXWD and 2SXWJ of the inlet gate travel switch. The action diagram of the gate position travel switch contacts is as Figure 9As shown in the figure. The on-site simulation device also includes multiple on-site indicating lights for the in-place of the gate switches in parallel. The fifth indicating light 1RL corresponding to the fully open intake gate is connected in series with the normally closed contact switch of the first intermediate relay 2SQA; the sixth indicating light 2RL corresponding to the fully closed intake gate is connected in series with the normally closed contact switch of the second intermediate relay 1SQA; the seventh indicating light 3RL corresponding to the fully open outlet gate is connected in series with the normally closed contact switch of the first intermediate relay 5SQA; the eighth indicating light 4RL corresponding to the fully closed outlet gate is connected in series with the normally closed contact switch of the second intermediate relay 4SQA, which is used to simulate the state display of the corresponding gate being fully open or fully closed.

[0078] The signals corresponding to the first intermediate relays (2SQA, 5SQA) and the second intermediate relays (1SQA, 4SQA) are shown in Table (1) below:

[0079] Intermediate relay Signal 1SQA Water inlet valve closed signal 2SQA Water inlet valve open signal 4SQA Water outlet valve closed signal 5SQA Water outlet valve open signal

[0080] Table (1)

[0081] In a preferred example, the first intermediate relay and the second intermediate relay in each gate control circuit both include a remote analog contact switch and an on-site analog contact switch. The opening and closing conditions of the contacts of the first intermediate relay and the second intermediate relay simulate the gate actions and feedback the real-time state and fault state of the gate.

[0082] Specifically, taking the first intermediate relay 2SQA as an example (the same applies to 1SQA, 4SQA, and 5SQA), the first intermediate relay 2SQA has a total of 2 groups, and each group has 2 pairs of upper and lower contacts. The left group of on-site analog contact switches is used for on-site analog operation, and the right group of remote analog contact switches is used for remote analog control.

[0083] The gate actions simulated by the opening and closing states of the contacts of the first intermediate relay 2SQA are shown in Table (2) below:

[0084] Contact status of the intermediate relay Simulate the gate action and status Upper left auxiliary contact closed The gate can be operated on-site and by the industrial control computer Upper left auxiliary contact separated The gate cannot be operated on-site and by the industrial control computer Lower left auxiliary contact separated On-site indicator light off Lower left auxiliary contact closed On-site indicator light always on Upper right auxiliary contact closed The industrial control computer gate always shows fully closed Upper right auxiliary contact separated The industrial control computer gate does not show fully closed

[0085] Table (2)

[0086] The common faults of the first intermediate relay 2SQA are shown in Table (3) below:

[0087]

[0088] Table (3)

[0089] A preferred example, such as Figure 6 、 Figure 7As shown, the brake circuit includes a first brake control circuit, a second brake control circuit, a third brake control circuit, and a fourth brake control circuit connected in parallel. The first brake control circuit and the second brake control circuit are used to simulate the brake of the inlet and outlet gates on the outer river side, and the third brake control circuit and the fourth brake control circuit are used to simulate the brake of the inlet and outlet gates on the inner river side;

[0090] Each brake control circuit includes a brake switch group and a first DC contactor. The brake switch group includes a remote brake emergency switch, an on-site brake emergency switch, a third switch and a fourth switch which are all connected in parallel and are normally open. The third switch is the normally open switch of the first AC contactor, and the fourth switch is the normally open switch of the second AC contactor. The interlocked third switch and fourth switch are controlled in linkage with the interlocked first switch and second switch to simulate the synchronous action of each brake control circuit and each corresponding gate control circuit.

[0091] Specifically, the first brake control circuit and the third brake control circuit simulate the brake of the water inlet gate on the outer river side and the inner river side, respectively, and include a brake switch group and a first DC contactor 5KM connected in series, and two normally open contact switches of the first DC contactor 5KM are arranged on both sides of the brake electromagnet 1Y and connected in parallel to the two ends of the brake switch group and the first DC contactor 5KM line, and the line uses 220V DC. The brake switch group includes a remote brake emergency switch 7K, an on-site brake emergency switch 3SB1, which are connected in parallel and are all normally open, and the third switch and the fourth switch are respectively the normally open contact switches of the first AC contactor 1KM and the second AC contactor 2KM. The second brake control circuit and the fourth brake control circuit simulate the brake of the outlet gate on the outer river side and the inner river side respectively. Different from the brake control circuit of the inlet gate, the first DC contactor is 6KM, the remote brake emergency switch is 8K, the on-site brake emergency switch is 3SB2, the third switch and the fourth switch are the normally open contact switches of the third AC contactor 3KM and the fourth AC contactor 4KM respectively, and the brake switch group of the outlet gate is also connected to the normally open switch of the third intermediate relay 3KA. The third switch and the fourth switch form the brake interlocking switch and the interlocked first and second switches in the control circuit to control linkage, simulating the synchronous action of the brake control circuit and the gate control circuit after pressing the gate lifting button in the gate control circuit.

[0092] In a preferred example, the control loop also includes a host shutdown circuit connected in parallel with the first gate control circuit, the host shutdown circuit includes a third intermediate relay 3KA and a fourth low-voltage circuit breaker 3QF, and the contact opening and closing status of the third intermediate relay 3KA is used to simulate the host shutdown or accident shutdown action and feedback the real-time status and fault status of the gate.

[0093] Specifically, the normally open contact switch of the fourth low-voltage circuit breaker 3QF is the main pump switch, and the normally closed contact switch of the fourth low-voltage circuit breaker 3QF is connected in series with the third intermediate relay 3KA. In the switch circuit connected to the water outlet gate control circuit, the normally closed contact switch of the third intermediate relay 3KA is connected in series with the normally closed contact switch of the thermal relay 2KH. The common faults of the third intermediate relay 3KA simulating the main engine shutdown or accident shutdown are shown in the following table (4):

[0094]

[0095] Table (4)

[0096] In a preferred example, the control loop further includes a main engine trip circuit connected in parallel with the first gate control circuit. The main engine trip circuit includes a fourth intermediate relay 4KA and a first time relay 2KT. The opening and closing status of the contacts of the fourth intermediate relay 4KA is used to simulate the main engine trip action and feedback the real-time status and fault status of the gate.

[0097] Specifically, the first time relay 2KT is automatically triggered, and there is also a second time relay 1KT connected in parallel with the first time relay 2KT. The second time relay 1KT is delay-triggered and set to 8 seconds. The common faults of the fourth intermediate relay 4KA simulating the main engine trip action are shown in the following table (5):

[0098]

[0099] Table (5)

[0100] In a preferred example, the control loop further includes a first power supply monitoring circuit connected in parallel with the first gate control circuit. The first power supply monitoring loop includes a fifth intermediate relay 2KA. The opening and closing status of the contacts of the fifth intermediate relay is used to simulate the power supply monitoring action of the control loop and feedback the power supply fault status of the control loop.

[0101] Specifically, the common faults of the fifth intermediate relay 2KA simulating the power supply monitoring action of the control loop are shown in the following table (6):

[0102] Contact condition of the intermediate relay Power supply monitoring status and fault status The lower left contact is not closed On-site control power supply monitoring indicator light off The lower left contact is closed On-site control power supply monitoring indicator always on The upper left contact is not closed Industrial control computer control power supply monitoring abnormal The lower left contact is closed Industrial control computer control power supply monitoring normal

[0103] Table (6)

[0104] In a preferred example, the control loop further includes a second power supply monitoring circuit connected in parallel with the first brake control circuit. The second power supply monitoring circuit includes a sixth intermediate relay 1KA. The opening and closing status of the contacts of the sixth intermediate relay is used to simulate the power supply monitoring action of the brake loop and feedback the power supply fault status of the brake loop.

[0105] Specifically, the common faults of the sixth intermediate relay 1KA simulating the power supply monitoring action of the brake loop are shown in the following table (7):

[0106] Contact condition of the intermediate relay Power supply monitoring status and fault status The lower left contact is not closed On-site control power supply monitoring indicator light off The lower left contact is closed On-site control power supply monitoring indicator always on The upper left contact is not closed Industrial control computer control power supply monitoring abnormal The lower left contact is closed Industrial control computer control power supply monitoring normal

[0107] Table (7)

[0108] When the user performs a simulation operation, for example, after the industrial control computer 1 is normally powered on, the outlet gate on the water inlet side is closed in place and then reopened, repeating this cycle. This failure is caused by the industrial control computer operation program continuously sending operation instructions due to communication or intermediate contactor failures at the moment when the main machine is switched on. The treatment methods are as follows:

[0109] (1) Under the condition of ensuring the safe operation of the main machine, turn the working condition selection switch K to the "water diversion" position, press the stop button, quickly turn the working condition selection switch K to the "off" position, and then press the emergency switch 8K or 3SB2 for the outlet gate brake, release the outlet gate brake, and let the gate descend evenly until it is closed.

[0110] (2) After the main machine stops, perform a simulated startup on the industrial control computer 1 to overwrite the previous incorrect operation program. After the interlock test is normal, the next startup will be normal.

[0111] In summary, in the present invention, when the industrial control computer remotely simulates a certain working condition, it sends a remote operation instruction to control the signal of the PLC control cabinet and generates corresponding gate action signals and brake action signals. The gate opening and closing control cabinet simulates the gate action according to the gate action signals and brake action signals and returns the real-time state of the gate and the fault state when a fault occurs to the display terminal, visually showing the action process of the inlet and outlet gates on both sides of the X-shaped flow channel, which is beneficial for users to deeply understand and master the working principle of the pump station gates of the two-way X-shaped flow channel, understand the maintenance of electrical equipment and facilities in different fault states, and lay a foundation for actual operation. This operation simulation system has low cost, high safety, high integration, and strong professionalism, and is suitable for employee training and fault simulation.

[0112] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments.

Claims

1. A pumping station gate operation simulation system with a two-way X-shaped flow channel, characterized in that, Including: An industrial control computer, a PLC control cabinet, a gate opening and closing control cabinet, and a charging unit; The PLC control cabinet is preset with gate action signals and brake action signals for multiple working conditions; The industrial control computer is connected to the PLC control cabinet. The industrial control computer is provided with a display terminal. The industrial control computer is used to send a remote operation instruction to control the signals of the PLC control cabinet and generate the corresponding gate action signals and brake action signals when remotely simulating a certain working condition; The gate opening and closing control cabinet is connected to the PLC control cabinet. The gate opening and closing control cabinet is used to simulate the gate action according to the gate action signals and brake action signals and return the real-time state of the gate to the display terminal; The gate opening and closing control cabinet includes: A main circuit, which is used to simulate the start and stop of the gate opening and closing motor; A control circuit, which is used to simulate the actions of each inlet and outlet gate and the corresponding gate fault states; A brake circuit, which is used to simulate the brake actions of each inlet and outlet gate and the corresponding brake fault states; The charging unit is connected to the gate opening and closing control cabinet, and the charging unit is used to provide a working power supply for the gate opening and closing control cabinet; The gate opening and closing control cabinet is provided with a field simulation device, which is used to simulate the gate action corresponding to a certain working condition according to the field operation instruction and return the real-time state of the gate to the display terminal. Among them, the field simulation runs in parallel with the remote simulation and can interactively operate; The main circuit includes a first motor opening and closing circuit, a second motor opening and closing circuit, a third motor opening and closing circuit, and a fourth motor opening and closing circuit; The first motor opening and closing circuit and the second motor opening and closing circuit are used to simulate the opening and closing of the inlet and outlet gate motors on the outer river side, and the third motor opening and closing circuit and the fourth motor opening and closing circuit are used to simulate the opening and closing of the inlet and outlet gate motors on the inner river side; The first motor opening and closing circuit, the second motor opening and closing circuit, the third motor opening and closing circuit, and the fourth motor opening and closing circuit all include a first low-voltage circuit breaker, a motor interlock switch, a thermal relay, and a gate motor connected in sequence. Among them, the first motor opening and closing circuit and the second motor opening and closing circuit are connected in parallel and then connected to a first AC power supply through a second low-voltage circuit breaker, and the third motor opening and closing circuit and the fourth motor opening and closing circuit are connected in parallel and then connected to a second AC power supply through a third low-voltage circuit breaker.

2. The pumping station gate operation simulation system according to claim 1, characterized in that The control circuit includes a first gate control circuit, a second gate control circuit, a third gate control circuit, and a fourth gate control circuit connected in parallel. The first gate control circuit and the second gate control circuit are used to simulate the lifting of the inlet and outlet gates on the outer river side, and the third gate control circuit and the fourth gate control circuit are used to simulate the lifting of the inlet and outlet gates on the inner river side; Each gate control circuit is connected to the corresponding motor opening and closing circuit through a switch circuit; Each gate control circuit includes a gate opening circuit and a gate closing circuit connected in parallel. The gate opening circuit and the gate closing circuit are interlocked by a first gate interlock switch. The gate opening circuit includes a first intermediate relay, a gate opening switch group, a first AC contactor, and a second switch. The gate closing circuit includes a second intermediate relay, a gate closing switch group, a second AC contactor, and a first switch. Among them, the first switch is the normally closed switch of the first AC contactor, and the second switch is the normally closed switch of the second AC contactor; The gate opening switch group includes a remote gate opening switch, a field gate opening switch, and a gate opening self-locking switch that are connected in parallel and are all normally open. The gate closing switch group includes a remote gate closing switch, a field gate closing switch, and a gate closing self-locking switch that are connected in parallel and are all normally open; The first intermediate relay of the first gate control circuit is used to simulate the opening of the outer river side intake gate according to the outer river side intake gate open signal. The second intermediate relay of the first gate control circuit is used to simulate the closing of the outer river side intake gate according to the outer river side intake gate close signal. The first intermediate relay of the second gate control circuit is used to simulate the opening of the outer river side outlet gate according to the outer river side outlet gate open signal. The second intermediate relay of the first gate control circuit is used to simulate the closing of the outer river side outlet gate according to the outer river side outlet gate close signal. The first intermediate relay of the third gate control circuit is used to simulate the opening of the inner river side intake gate according to the inner river side intake gate open signal. The second intermediate relay of the third gate control circuit is used to simulate the closing of the inner river side intake gate according to the inner river side intake gate close signal. The first intermediate relay of the fourth gate control circuit is used to simulate the opening of the inner river side outlet gate according to the inner river side outlet gate open signal. The second intermediate relay of the fourth gate control circuit is used to simulate the closing of the inner river side outlet gate according to the inner river side outlet gate close signal.

3. The pump station gate operation simulation system according to claim 2, characterized in that The first intermediate relay and the second intermediate relay in each gate control circuit both include a remote analog contact switch and a field analog contact switch. The opening and closing status of the contacts of the first intermediate relay and the second intermediate relay simulates the gate action and feedbacks the real-time status and fault status of the gate.

4. The pumping station gate operation simulation system according to claim 2, characterized in that, The brake circuit includes a first brake control circuit, a second brake control circuit, a third brake control circuit, and a fourth brake control circuit connected in parallel. The first brake control circuit and the second brake control circuit are used to simulate the brake of the outer river side intake and outlet gates. The third brake control circuit and the fourth brake control circuit are used to simulate the brake of the inner river side intake and outlet gates; Each brake control circuit includes a brake switch group and a first DC contactor. The brake switch group includes a remote brake emergency switch, an on-site brake emergency switch, a third switch and a fourth switch that are connected in parallel and are all normally open. The third switch is the normally open switch of the first AC contactor, and the fourth switch is the normally open switch of the second AC contactor. The interlocked third switch and the fourth switch are linked to the interlocked first switch and the second switch for simulating the synchronous action of each brake control circuit and each corresponding gate control circuit.

5. The pump station gate operation simulation system according to claim 2, characterized in that The control loop also includes a host shutdown circuit connected in parallel with the first gate control circuit, and the host shutdown circuit includes a third intermediate relay and a fourth low-voltage circuit breaker. The contact opening and closing status of the third intermediate relay is used to simulate the host shutdown or accident shutdown action and feedback the real-time status and fault status of the gate.

6. The pumping station gate operation simulation system according to claim 2, characterized in that The control loop also includes a host tripping circuit connected in parallel with the first gate control circuit, and the host tripping circuit includes a fourth intermediate relay and a first time relay. The contact opening and closing status of the fourth intermediate relay is used to simulate the host tripping action and feedback the real-time status and fault status of the gate.

7. The pumping station gate operation simulation system according to claim 2, characterized in that, The control loop also includes a first power supply monitoring circuit connected in parallel with the first gate control circuit, and the first power supply monitoring circuit includes a fifth intermediate relay. The contact opening and closing status of the fifth intermediate relay is used to simulate the power supply monitoring action of the control loop and feedback the power supply fault status of the control loop.

8. The pumping station gate operation simulation system according to claim 4, wherein The control circuit also includes a second power supply monitoring circuit connected in parallel with the first brake control circuit, and the second power supply monitoring circuit includes a sixth intermediate relay. The contact opening and closing status of the sixth intermediate relay is used to simulate the power supply monitoring action of the brake circuit and feedback the power supply fault status of the brake circuit.

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