Diaphragm pump remote control system and control method

Abstract

The invention discloses a diaphragm pump remote control system which comprises a switch, the switch is electrically connected with a diaphragm pump single pump PLC, a trunk pump PLC and a controller, the diaphragm pump single pump is electrically connected with a teletransmission pressure gauge, a sensor set and an electric valve which are arranged on a diaphragm pump, and a chip is arranged in the controller. Conditions are set in the initialization module in advance, the pressure value and state data of the diaphragm pump are obtained through the input module, and the control module processes the pressure value and the state value in the diaphragm pump. The problem of low working efficiency caused by long contact time in the diaphragm pump control process in the prior art is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of diaphragm pump control, relates to a diaphragm pump remote control system, and further relates to a diaphragm pump control method. Background Art

[0002] The coal pipeline of Shaanxi Shenwei Coal Pipeline Transportation Co., Ltd. is 727 kilometers long and is the world's first long-distance coal pipeline. There are 8 stations along the entire line, of which 6 stations are main lines and 2 stations are branch lines. A total of 34 high-power diaphragm pumps are installed in the 6 main line pump stations, which provide transportation power for pipeline coal transportation by pressurizing each station, and deliver high-quality raw coal from the Yushen mining area to the Shaanxi Guanzhong Coal Chemical Base.

[0003] From the 72-hour load commissioning of the diaphragm pump at the site, the water commissioning between stations, to the trial operation of the whole line with water and slurry, and then to the current normal production operation, the operators of the trunk pumping system have accumulated rich experience in multi-condition practical training and have fully mastered the start-stop operation essentials of the diaphragm pump, the core equipment of the production system. However, there is such a phenomenon in the actual operation of the site: after the centralized control issues the diaphragm pump start-up command, the site pumping operator verifies the on-site start-up conditions one by one with the sub-control personnel through the intercom. After the local start-up operation of the diaphragm pump is completed on site, the sub-control again contacts the on-duty personnel of the trunk pumping system through the dispatch phone, and the operation authority of the diaphragm pump is handed over to the centralized control personnel to complete the speed increase and decrease operations to meet the process requirements. At present, from the issuance of the start-up command to the production of the main line, the personnel communication is cumbersome, and the information communication and equipment start-up process takes a long time. When encountering special emergency conditions, the centralized control personnel cannot quickly start the diaphragm pump in a short time to meet the working condition requirements. Summary of the invention

[0004] The purpose of the present invention is to provide a diaphragm pump remote control system, which solves the problem in the prior art that the diaphragm pump control process has a long communication time resulting in low working efficiency.

[0005] Another object of the present invention is to provide a diaphragm pump control method.

[0006] The technical solution adopted by the present invention is a diaphragm pump remote control system, including a switch, the switch is electrically connected to the diaphragm pump single pump PLC, the trunk pump PLC and the controller, the diaphragm pump single pump is electrically connected to the remote pressure gauge, sensor group and electric valve arranged on the diaphragm pump, and a chip is arranged in the controller.

[0007] The present invention is also characterized in that: The switch and the controller exchange information via Ethernet.

[0008] The controller is provided with a display screen, which includes a monitoring page, an operation page, an alarm page, a record page, a trend page and a statistics page.

[0009] The record page records the operations performed on the operation page and the alarm information; the monitoring page displays the diaphragm pump status data and diaphragm pump pressure value in real time; the operation page is equipped with switches for exhaust, synchronization, speed regulation, stop and start; the alarm page displays abnormal status data and pressure values.

[0010] Chips include: Initialization module: used to set the diaphragm pump automatic exhaust switch, start conditions, stop conditions, motor phase angle parameter value, normal state data and pressure threshold in the chip in advance; Input module: obtains the pressure value and status data of the diaphragm pump in real time through the remote pressure gauge and sensor group, and transmits the pressure value, motor phase angle, motor speed and status data to the control chip; Storage module: saves the pressure value, motor phase angle, motor speed and status data obtained by the input module, and saves the pressure value, motor phase angle, motor speed and status data processed by the initialization module; Control module: normalizes the pressure value, motor phase angle, motor speed and status data obtained by the input module to obtain target data, transmits the target data to the storage module for storage, transmits the target data in the storage module to the initialization module for comparison and judgment, and if abnormal information occurs, transmits the abnormal information to the alarm module and the storage module; Alarm module: After receiving abnormal information, it will alarm and control the diaphragm pump to stop.

[0011] The interval for automatic exhaust time in the diaphragm pump PLC is set to 2h.

[0012] Another technical solution adopted by the present invention is a diaphragm pump control method, which specifically includes the following steps: Step 1: Set the diaphragm pump self-exhaust switch, start-up conditions, stop conditions, normal state data, motor phase angle parameter value and pressure threshold in the initialization module; Step 2: Obtain the pressure value, motor phase angle, motor speed and status data of the diaphragm pump through the input module and transmit them to the control module and the storage module; Step 3: The pressure value, motor phase angle, motor speed and status data in the control module are normalized and transmitted to the initialization module for judgment; the pressure value exceeding the pressure threshold and the abnormal status data are transmitted to the storage module for storage and transmission to the alarm module for alarm, and the diaphragm pump is controlled to stop; the phase angle that does not meet the parameter value of the motor phase angle is saved and the phase angle is adjusted through the diaphragm pump single pump PLC (1).

[0013] Another technical solution of the present invention is also characterized in that: The starting conditions must be met at the same time: the auxiliary equipment motor group operates normally, the propulsion liquid air pressure is greater than 0.45MPa, the inlet feed pressure is greater than 0.35Mpa, the outlet working pressure is not greater than 12.5MPa, the maintenance knob is reset, the diaphragm pump inlet and outlet flow channels are unobstructed and the valve signals in the flow channels are all open signals and the inverter is ready.

[0014] The parking conditions must be met: remote parking command, ESD parking command triggering, inlet pressure less than 12.5Mpa or outlet pressure not less than 12.5Mpa, process interlock parking for 10s, diaphragm pump inlet and outlet flow channels blocked and valve closed or valve in non-open state, local cabinet emergency stop, auxiliary equipment motor unit operation failure or inverter failure.

[0015] The beneficial effects of the present invention are: Through the development of the control system, the operating data information of the diaphragm pump is integrated into the centralized control station. The centralized control personnel can grasp the operating information of the diaphragm pump equipment of the entire line in real time through the data on the display screen. The remote one-key start function of the diaphragm pump can be realized through the operation page of the display screen, which greatly improves the working efficiency of the safe and stable operation of the trunk pumping system; it solves the problem of frequent communication between centralized control, sub-control and on-site operators and low starting efficiency during the start-up process of the diaphragm pump.

[0016] After associating the diaphragm pump control cabinet with the mainline pumping system controller in the form of production or consumption tags, the control logic of the diaphragm pump one-key start is optimized, and the real-time information such as the operation and process permit conditions of the diaphragm pump complete set of equipment is integrated and displayed at the operator station in the centralized control room. The centralized control operator can use the diaphragm pump remote one-key start system to meet the needs of the corresponding production conditions in a timely manner based on the above information to avoid the occurrence of production accidents and secondary expansion.

[0017] The parameter value of the motor phase angle is set according to the number of diaphragm pumps. When the parameter value is exceeded or less than the parameter value, it can be adjusted in time through the diaphragm pump single pump PLC. Reducing the pressure pulsation can reduce the vibration of the diaphragm pump main pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the connection diagram of the diaphragm pump remote one-button start system.

[0019] In the figure, 1. Diaphragm pump single pump PLC, 2. Switch, 3. Trunk pump PLC, 4. Sensor group, 5. Controller, 6. Remote pressure gauge, 7. Electric valve, 8. Chip. DETAILED DESCRIPTION

[0020] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] The technical solution adopted by the present invention is that the diaphragm pump remote control system, such as Figure 1 As shown, it includes a switch 2, which is electrically connected to a diaphragm pump single pump PLC1, a trunk pump PLC3 and a controller 5. The diaphragm pump single pump PLC1 is electrically connected to a remote pressure gauge 6, a sensor group 4 and an electric valve 7 arranged on the diaphragm pump, and a chip 8 is arranged in the controller 5.

[0022] The switch 2 and the controller 5 exchange information via Ethernet.

[0023] The controller 5 is provided with a display screen, which includes a monitoring page, an operation page, an alarm page, a record page, a trend page and a statistics page.

[0024] The record page records the operations performed on the operation page and the alarm information; the monitoring page displays the diaphragm pump status data and diaphragm pump pressure value in real time; the operation page is equipped with switches for exhaust, synchronization, speed regulation, stop and start; the alarm page displays abnormal status data and pressure values.

[0025] Chip 8 includes: Initialization module: used to set the diaphragm pump automatic exhaust switch, start conditions, stop conditions, motor phase angle parameter value, normal state data and pressure threshold in advance in the chip 8; Input module: obtains the pressure value, motor phase angle, motor speed and status data of the diaphragm pump in real time through the remote pressure gauge 6 and the sensor group 4, and transmits the pressure value, motor phase angle, motor speed and status data to the control chip 8; Storage module: saves the pressure value, motor phase angle, motor speed and status data obtained by the input module, and saves the pressure value, motor phase angle, motor speed and status data processed by the initialization module; Control module: normalizes the pressure value, motor phase angle, motor speed and status data obtained by the input module to obtain target data, transmits the target data to the storage module for storage, transmits the target data in the storage module to the initialization module for comparison and judgment, and if abnormal information occurs, transmits the abnormal information to the alarm module and the storage module; Alarm module: After receiving abnormal information, it will alarm and control the diaphragm pump to stop.

[0026] The interval for automatic exhaust time in the diaphragm pump PLC1 is set to 2h.

[0027] Another technical solution adopted by the present invention is a diaphragm pump control method, which specifically includes the following steps: Step 1: Set the diaphragm pump self-exhaust switch, start-up conditions, stop conditions, normal state data, motor phase angle parameter value and pressure threshold in the initialization module; Step 2: Obtain the pressure value, motor phase angle, motor speed and status data of the diaphragm pump through the input module and transmit them to the control module and the storage module; Step 3: Normalize the pressure value, motor phase angle, motor speed and status data in the control module and transmit them to the initialization module for judgment; transmit the pressure value exceeding the pressure threshold and abnormal status data to the storage module for storage and transmission to the alarm module for alarm, and control the diaphragm pump to stop; save the phase angle of the parameter value that does not meet the motor phase angle and complete the phase angle adjustment through the diaphragm pump single pump PLC1.

[0028] The starting conditions must be met at the same time: the auxiliary equipment motor group operates normally, the propulsion liquid air pressure is greater than 0.45MPa, the inlet feed pressure is greater than 0.35Mpa, the outlet working pressure is not greater than 12.5MPa, the maintenance knob is reset, the diaphragm pump inlet and outlet flow channels are unobstructed and the valve signals in the flow channels are all open signals and the inverter is ready.

[0029] The parking conditions must be met: remote parking command, ESD parking command triggering, inlet pressure less than 12.5Mpa or outlet pressure not less than 12.5Mpa, process interlock parking for 10s, diaphragm pump inlet and outlet flow channels blocked and valve closed or valve in non-open state, local cabinet emergency stop, auxiliary equipment motor unit operation failure or inverter failure.

[0030] Through the editing of the lower computer programming software, the main pump PLC3 and the diaphragm pump single pump PLC1 are linked to each other through the switch 2 for communication; there are several diaphragm pumps, each of which is equipped with a diaphragm pump single pump PLC1, which monitors and controls the diaphragm pump, and the diaphragm pump single pump PLC1 converges all information to the main pump PLC3 through the switch 2, and the main pump PLC3 performs preliminary processing on the information and transmits it to the controller 5 for processing, and the controller 5 controls each diaphragm pump through the main pump PLC3 based on the processing results and control information; the diaphragm pump single pump PLC1, as the producer, connects the main power of the diaphragm pump The remote instrument feedback tag information of the machine and auxiliary equipment is transmitted to the main pump PLC3 through switch 2. The main pump PLC3, as a consumer, transmits this part of the tag data to the controller 5 for processing; at the same time, the main pump PLC3 also controls the start and stop, speed setting and other operations of the main motor and auxiliary equipment of the diaphragm pump as a producer. Specifically, the controller 5 processes the acquired data, and passes the control information to the main pump PLC3 after processing. The main pump PLC3 transmits the control information to the diaphragm pump single pump PLC1 through switch 2. The diaphragm pump single pump PLC1 controls the diaphragm pump as a consumer to execute the corresponding control information.

[0031] The single-pump remote one-button start logic for controlling the diaphragm pump is compiled and set in the main pump PLC3. The monitoring information and control instructions are transmitted between the main pump PLC3 and the controller 5 through the switch 2. The switch 2 is used to integrate the remote instrument information of the main motor and auxiliary equipment of the diaphragm pump, the inverter readiness, the diaphragm pump production and operation process and other information, and transmit it to the monitoring page of the controller 5 in real time.

[0032] The monitoring page displays all the operating information of the diaphragm pump in real time, including the main motor current, voltage, power, three-phase electrical temperature, front and rear axle temperature and vibration information; oil temperature and vibration information of the reducer and power end; lubricating oil pump flow; propulsion liquid pump pressure and diaphragm chamber oil replenishment and discharge probe signal monitoring data; diaphragm pump abnormal data warning animation, etc.; the operation page of controller 5 is provided with the diaphragm pump single pump remote one-key start process permission status. When the diaphragm pump is in normal mode, the centralized control operator can issue the diaphragm pump single pump one-key start instruction instantly by operating the operation page of controller 5 according to the real-time production operation conditions and equipment information of the diaphragm pump, thereby realizing the remote diaphragm pump single pump one-key start function; an exhaust button is provided in the controller 5 to start or close the automatic exhaust time set in the diaphragm pump single pump PLC1. The automatic exhaust time interval in the diaphragm pump single pump PLC1 is set to 2h according to the conventional optimal exhaust time.

[0033] The remote one-button start-up diaphragm pump design and logic set by the controller 5 in the present invention replace the operating procedures of the on-site step-by-step start-up of the diaphragm pump, reducing the frequent communication between the central control, sub-control, and on-site operators during the start-up process of the diaphragm pump in the prior art, and improving work efficiency; at the same time, the operator of the controller 5 can grasp the production status information of the diaphragm pump in real time, which can reduce the manual input of operation and inspection during the production process and reduce production costs; in addition, when abnormal conditions occur in the production operation process, the centralized control operation station can use the diaphragm pump single pump remote one-button start-up system to immediately respond to operating conditions, avoid the occurrence and secondary expansion of production accidents, and ensure the safety and stability of long-distance coal pipelines.

[0034] The parameter value of the motor phase angle in the present invention is determined according to the number of diaphragm pumps in the diaphragm pump remote control system. Each diaphragm pump has three piston cylinders, and the sum of the phase angles of the motors in all the piston cylinders is 360 degrees to ensure stable operation. If there are six diaphragm pumps, the parameter value of the motor phase angle needs to be set to 20 degrees; if there are five diaphragm pumps, the parameter value of the motor phase angle needs to be set to 24 degrees; if there are four diaphragm pumps, the parameter value of the motor phase angle needs to be set to 30 degrees; the calculation is performed in this way and the determination is made; the parameter value of the motor phase angle is set according to the number of diaphragm pumps. When the parameter value is exceeded or less than the parameter value, it can be adjusted in time through the diaphragm pump single pump PLC. After reducing the pressure pulsation, the vibration of the diaphragm pump trunk pipeline can be reduced, thereby improving the cooperation and stability of the diaphragm pump in the diaphragm pump remote control system.

[0035] Example 1 The diaphragm pump remote control system of the present invention comprises a switch 2, which is electrically connected to a diaphragm pump single pump PLC1, a trunk pump PLC3 and a controller 5 respectively. The diaphragm pump single pump PLC1 is electrically connected to a remote pressure gauge 6, a sensor group 4 and an electric valve 7 arranged on the diaphragm pump, and a chip 8 is arranged in the controller 5.

[0036] The diaphragm pump control method specifically comprises the following steps: Step 1: Set the diaphragm pump self-exhaust switch, start-up conditions, stop conditions, normal state data, motor phase angle parameter value and pressure threshold in the initialization module; Step 2: Obtain the pressure value, motor phase angle, motor speed and status data of the diaphragm pump through the input module and transmit them to the control module and the storage module; Step 3: Normalize the pressure value, motor phase angle, motor speed and status data in the control module and transmit them to the initialization module for judgment; transmit the pressure value exceeding the pressure threshold and abnormal status data to the storage module for storage and transmission to the alarm module for alarm, and control the diaphragm pump to stop; save the phase angle of the parameter value that does not meet the motor phase angle and complete the phase angle adjustment through the diaphragm pump single pump PLC1.

[0037] There are six diaphragm pumps, and the motor phase angle parameter value needs to be set to 20 degrees.

[0038] Example 2 The diaphragm pump remote control system of the present invention comprises a switch 2, which is electrically connected to a diaphragm pump single pump PLC1, a trunk pump PLC3 and a controller 5 respectively. The diaphragm pump single pump PLC1 is electrically connected to a remote pressure gauge 6, a sensor group 4 and an electric valve 7 arranged on the diaphragm pump, and a chip 8 is arranged in the controller 5.

[0039] Chip 8 includes: Initialization module: used to set the diaphragm pump automatic exhaust switch, start conditions, stop conditions, motor phase angle parameter value, normal state data and pressure threshold in advance in the chip 8; Input module: obtains the pressure value, motor phase angle, motor speed and status data of the diaphragm pump in real time through the remote pressure gauge 6 and the sensor group 4, and transmits the pressure value, motor phase angle, motor speed and status data to the control chip 8; Storage module: saves the pressure value, motor phase angle, motor speed and status data obtained by the input module, and saves the pressure value, motor phase angle, motor speed and status data processed by the initialization module; Control module: normalizes the pressure value, motor phase angle, motor speed and status data obtained by the input module to obtain target data, transmits the target data to the storage module for storage, transmits the target data in the storage module to the initialization module for comparison and judgment, and if abnormal information occurs, transmits the abnormal information to the alarm module and the storage module; Alarm module: After receiving abnormal information, it will alarm and control the diaphragm pump to stop.

[0040] The diaphragm pump control method specifically comprises the following steps: Step 1: Set the diaphragm pump self-exhaust switch, start-up conditions, stop conditions, normal state data, motor phase angle parameter value and pressure threshold in the initialization module; Step 2: Obtain the pressure value, motor phase angle, motor speed and status data of the diaphragm pump through the input module and transmit them to the control module and the storage module; Step 3: The pressure value, motor phase angle, motor speed and status data in the control module are normalized and transmitted to the initialization module for judgment; the pressure value exceeding the pressure threshold and abnormal status data are transmitted to the storage module for storage and transmission to the alarm module for alarm, and the diaphragm pump is controlled to stop; the phase angle that does not meet the parameter value of the motor phase angle is saved and the phase angle is adjusted through the diaphragm pump single pump PLC (1).

[0041] There are five diaphragm pumps, and the motor phase angle parameter value needs to be set to 24 degrees.

[0042] The starting conditions must be met at the same time: the auxiliary equipment motor group operates normally, the propulsion liquid air pressure is greater than 0.45MPa, the inlet feed pressure is greater than 0.35Mpa, the outlet working pressure is not greater than 12.5MPa, the maintenance knob is reset, the diaphragm pump inlet and outlet flow channels are unobstructed and the valve signals in the flow channels are all open signals and the inverter is ready.

[0043] The parking conditions must be met: remote parking command, ESD parking command triggering, inlet pressure less than 12.5Mpa or outlet pressure not less than 12.5Mpa, process interlock parking for 10s, diaphragm pump inlet and outlet flow channels blocked and valve closed or valve in non-open state, local cabinet emergency stop, auxiliary equipment motor unit operation failure or inverter failure.

[0044] Example 3 The diaphragm pump remote control system of the present invention comprises a switch 2, which is electrically connected to a diaphragm pump single pump PLC1, a trunk pump PLC3 and a controller 5 respectively. The diaphragm pump single pump PLC1 is electrically connected to a remote pressure gauge 6, a sensor group 4 and an electric valve 7 arranged on the diaphragm pump, and a chip 8 is arranged in the controller 5.

[0045] Chip 8 includes: Initialization module: used to set the diaphragm pump automatic exhaust switch, start conditions, stop conditions, motor phase angle parameter value, normal state data and pressure threshold in advance in the chip 8; Input module: obtains the pressure value, motor phase angle, motor speed and status data of the diaphragm pump in real time through the remote pressure gauge 6 and the sensor group 4, and transmits the pressure value, motor phase angle, motor speed and status data to the control chip 8; Storage module: saves the pressure value, motor phase angle, motor speed and status data obtained by the input module, and saves the pressure value, motor phase angle, motor speed and status data processed by the initialization module; Control module: normalizes the pressure value, motor phase angle, motor speed and status data obtained by the input module to obtain target data, transmits the target data to the storage module for storage, transmits the target data in the storage module to the initialization module for comparison and judgment, and if abnormal information occurs, transmits the abnormal information to the alarm module and the storage module; Alarm module: After receiving abnormal information, it will alarm and control the diaphragm pump to stop.

[0046] The diaphragm pump control method specifically comprises the following steps: Step 1: Set the diaphragm pump self-exhaust switch, start-up conditions, stop conditions, normal state data, motor phase angle parameter value and pressure threshold in the initialization module; Step 2: Obtain the pressure value, motor phase angle, motor speed and status data of the diaphragm pump through the input module and transmit them to the control module and the storage module; Step 3: The pressure value, motor phase angle, motor speed and status data in the control module are normalized and transmitted to the initialization module for judgment; the pressure value exceeding the pressure threshold and abnormal status data are transmitted to the storage module for storage and transmission to the alarm module for alarm, and the diaphragm pump is controlled to stop; the phase angle that does not meet the parameter value of the motor phase angle is saved and the phase angle is adjusted through the diaphragm pump single pump PLC (1).

[0047] There are four diaphragm pumps, and the motor phase angle parameter value needs to be set to 30 degrees.

[0048] The parking conditions must be met: remote parking command, ESD parking command triggering, inlet pressure less than 12.5Mpa or outlet pressure not less than 12.5Mpa, process interlock parking for 10s, diaphragm pump inlet and outlet flow channels blocked and valve closed or valve in non-open state, local cabinet emergency stop, auxiliary equipment motor unit operation failure or inverter failure.

[0049] The diaphragm pump control method reduces the frequent communication between the central control, sub-control and on-site operators during the start-up process of the diaphragm pump in the prior art, thereby improving work efficiency; at the same time, the operator of the controller 5 can grasp the production status information of the diaphragm pump in real time, which can reduce the manual input of operation and inspection during the production process and reduce production costs; in addition, when abnormal conditions occur in the production operation process, the centralized control operation station can use the diaphragm pump single pump remote one-button start system to immediately respond to operating conditions, avoid the occurrence and secondary expansion of production accidents, and ensure the safety and stability of long-distance coal pipelines.

Claims

1. Diaphragm pump remote control system, characterized in that, The invention comprises a switch (2), wherein the switch (2) is electrically connected to a diaphragm pump PLC (1), a trunk pump PLC (3) and a controller (5), respectively; the diaphragm pump PLC (1) is electrically connected to a remote pressure gauge (6), a sensor group (4) and an electric valve (7) arranged on the diaphragm pump; and the controller (5) is provided with a chip (8).

2. The diaphragm pump remote control system according to claim 1, characterized in that: The switch (2) and the controller (5) exchange information via Ethernet.

3. The diaphragm pump remote control system according to claim 2, characterized in that: The controller (5) is provided with a display screen, which includes a monitoring page, an operation page, an alarm page, a record page, a trend page and a statistics page.

4. The diaphragm pump remote control system according to claim 3, characterized in that: The recording page records the operations performed on the operation page and the alarm information; the monitoring page displays the diaphragm pump status data and pressure value in real time; the operation page is provided with switches for exhaust, synchronization, speed regulation, stop and start; the alarm page displays abnormal status data and pressure values.

5. The diaphragm pump remote control system according to claim 4, characterized in that: The chip (8) comprises: Initialization module: used to set the diaphragm pump automatic exhaust switch, start conditions, stop conditions, motor phase angle parameter value, normal state data and pressure threshold value in advance in the chip (8); Input module: obtains the pressure value, motor phase angle, motor speed and status data of the diaphragm pump in real time through the remote pressure gauge (6) and the sensor group (4), and transmits the pressure value, motor phase angle, motor speed and status data to the control chip (8); Storage module: saves the pressure value, motor phase angle, motor speed and status data obtained by the input module, and saves the pressure value, motor phase angle, motor speed and status data processed by the initialization module; Control module: normalizes the pressure value, motor phase angle, motor speed and status data obtained by the input module to obtain target data, transmits the target data to the storage module for storage, transmits the target data in the storage module to the initialization module for comparison and judgment, and if abnormal information occurs, transmits the abnormal information to the alarm module and the storage module; Alarm module: After receiving abnormal information, it will alarm and control the diaphragm pump to stop.

6. The diaphragm pump remote control system according to claim 5, characterized in that: The interval of the automatic exhaust time set in the diaphragm pump single pump PLC (1) is set to 2 hours.

7. The diaphragm pump control method according to claim 6, characterized in that: The diaphragm pump remote control system according to claim 6 specifically comprises the following steps: Step 1: Set the diaphragm pump self-exhaust switch, start-up conditions, stop conditions, normal state data, motor phase angle parameter value and pressure threshold in the initialization module; Step 2: Obtain the pressure value, motor phase angle, motor speed and status data of the diaphragm pump through the input module and transmit them to the control module and the storage module; Step 3: The pressure value, motor phase angle, motor speed and status data in the control module are normalized and transmitted to the initialization module for judgment; the pressure value exceeding the pressure threshold and abnormal status data are transmitted to the storage module for storage and transmission to the alarm module for alarm, and the diaphragm pump is controlled to stop; the phase angle that does not meet the parameter value of the motor phase angle is saved and the phase angle is adjusted through the diaphragm pump single pump PLC (1).

8. The diaphragm pump control method according to claim 7, characterized in that: The starting conditions must be met at the same time: the auxiliary equipment motor group operates normally, the propulsion liquid air pressure is greater than 0.45MPa, the inlet feed pressure is greater than 0.35Mpa, the outlet working pressure is not greater than 12.5MPa, the maintenance knob is reset, the diaphragm pump inlet and outlet flow channels are unobstructed and the valve signals in the flow channels are all open signals and the inverter is ready.

9. The diaphragm pump control method according to claim 7, characterized in that: The parking conditions must meet the following conditions: remote parking command, ESD parking command triggering, inlet pressure less than 12.5Mpa or outlet pressure not less than 12.5Mpa, process interlock parking for 10s, diaphragm pump inlet and outlet flow channels blocked and valve closed or valve in non-open state, local cabinet emergency stop, auxiliary equipment motor unit operating failure or inverter failure.

Images