CN112524008B - Undisturbed switching control system and control method for electric feed pump - Google Patents
Undisturbed switching control system and control method for electric feed pump Download PDFInfo
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- CN112524008B CN112524008B CN202011306815.4A CN202011306815A CN112524008B CN 112524008 B CN112524008 B CN 112524008B CN 202011306815 A CN202011306815 A CN 202011306815A CN 112524008 B CN112524008 B CN 112524008B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses an undisturbed switching control system and a control method of an electric water feeding pump, and the undisturbed switching control system comprises a central control system and a login unit, wherein the central control system is in bidirectional connection with the login unit through wireless, the central control system is in bidirectional connection with a wireless communication module through wireless, and the wireless communication module is in bidirectional connection with a remote control system through wireless. This undisturbed switching control system of motor-driven feed-water pump and control method thereof, realize two way connection through central control system through wireless and stand-by power supply control unit, the setting of generator start-stop drive module for under the state that has a power failure, can not influence the normal work of feed-water pump yet, make motor-driven feed-water pump can the continuous operation, the water supply system of subcritical unit can the continuation work, the electric quantity reminds the module and reminds the electric quantity of generator simultaneously, make things convenient for people in time to supply the electric quantity to the generator.
Description
Technical Field
The invention relates to the technical field of feed pump switching control, in particular to an undisturbed switching control system and a control method for an electric feed pump.
Background
The subcritical pressure unit is steam power generator unit with steam pressure of 15.7-19.6MPa and temperature of 538 deg.c, the traditional thermotechnical control device adopts assembled instrument with discrete elements, and has great hardware amount, complicated control system and dispersive control system with microprocessor as basic unit, and has reliable hardware, great memory capacity, powerful software function, modular software and other features, the automatic adjusting system of the unit is designed more perfectly, the function of the adjusting system is greatly improved, and the water feeding pump is used for the water feeding pump of the subcritical pressure unit, the dragging mode is divided into two dragging modes of an electric motor and a steam turbine generally, the electric motor adopts an alternating current motor mostly, the rotation speed of the water feeding pump is constant, the motor is convenient and flexible to operate, and occupies small area, so that medium and small thermal power plants generally adopt an electric mode when being connected with a power grid (on-line).
Referring to a non-disturbance switching water pump control system with Chinese patent application No. CN201210108152.4, the invention realizes the control mode that the water pump motor is switched between centralized and machine side without stopping only by upgrading electrical equipment under the condition of not changing any process equipment of the water pump system, and can carry out start-stop operation on a field operation box and an HMI (human machine interface), thereby improving the safety reliability and the control convenience of the water pump system, however, the reference patent has the following defects:
1) when having realized that the water pump motor is concentrating and the other control mode who switches each other and do not shut down of machine, at the switching in-process, water pump system pressure is not steady, can't adjust, causes the influence to the stability of system to make water supply system's reliability and security lower.
2) When the power failure condition occurs in the system, the electric water feeding pump cannot work, so that the water feeding pump cannot be controlled to continuously run in a remote module or a local mode, and the water supply system of the subcritical unit cannot continuously work.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an undisturbed switching control system and a control method of an electric water-feeding pump, and solves the problems that the pressure of a water pump system is unstable and cannot be adjusted in the switching process, the stability of the system is influenced, the reliability and the safety of a water supply system are lower, and the electric water-feeding pump cannot work under the condition of power failure.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an undisturbed switching control system of an electric feed pump comprises a central control system and a login unit, wherein the central control system is in bidirectional connection with the login unit through wireless, the central control system is in bidirectional connection with a wireless communication module through wireless, the wireless communication module is in bidirectional connection with a remote control system through wireless, the input end of the central control system is electrically connected with the output end of a field control system, the input end of the central control system is electrically connected with the output end of a monitoring unit, the output end of the monitoring unit is electrically connected with the input end of an alarm module, the output end of the alarm module is electrically connected with the input end of the central control system, the input end of the central control system is electrically connected with the output end of a pressure regulating unit, the central control system is in bidirectional connection with a standby power supply control unit through wireless, the central control system realizes bidirectional connection with the data processing unit through wireless.
Preferably, the monitoring unit comprises a liquid level sensing module, a water feeding pump pressure sensing module and a motor parameter monitoring module, and the pressure adjusting unit comprises a pressure data receiving module, an information base, a comparison module and a pressure regulating valve control module.
Preferably, the login unit comprises an account input module, an output end of the account input module is electrically connected with an input end of the login module, and the account input module is in bidirectional connection with the password change module through wireless.
Preferably, the remote control system comprises an instruction receiving module, an information processing unit, a control terminal, a feed pump start-stop control switch and a first delay relay module, wherein the information processing unit comprises a feed pump positioning module and a feed pump state query module.
Preferably, the field control system comprises a human-computer interaction unit, a water feeding pump start-stop driving module and a second delay relay module, wherein the human-computer interaction unit comprises a liquid crystal display module, an instruction input module, an equipment state query module and a field monitoring module.
Preferably, the standby power supply control unit comprises a generator start-stop driving module, an electric quantity reminding module and a charging module, the data processing unit comprises a database, the input end of the database is electrically connected with the output end of the data receiving module, and the input end of the database is electrically connected with the output end of the classification integration module.
Preferably, the input end of the database is electrically connected with the output end of the safety protection module, and the input end of the database is electrically connected with the output end of the deletion module.
The invention also discloses a control method of the undisturbed switching control system of the electric feed pump, which specifically comprises the following steps:
s1, when the electric water feeding pump is remotely controlled, an instruction for controlling a switch of the water feeding pump is received through an instruction receiving module, then a water feeding pump positioning module in an information processing unit positions the position of the water feeding pump for sending the instruction, a water feeding pump state query module checks the pressure state and the motor parameters of the water feeding pump monitored in a monitoring unit, after the state is qualified, a control terminal controls the electric water feeding pump to work through a water feeding pump start-stop control switch, during switching control, the closing time of the water feeding pump start-stop control switch is timed through a first delay relay module, and after the switching is switched to field control, the water feeding pump start-stop control switch is automatically closed;
s2, controlling the electric water feeding pump through the field control system, entering a man-machine interaction unit, inputting a command of a control switch through a command input module on the liquid crystal display module, checking whether the running state of the electric water feeding pump is normal through an equipment state query module, monitoring personnel of field operation equipment through the field monitoring module, controlling the electric water feeding pump to work through the water feeding pump start-stop driving module, timing the closing time of the water feeding pump start-stop driving module through the second delay relay module during switching control, and automatically closing the water feeding pump start-stop driving module under field control after switching to remote control;
s3, in the process of operation switching of the electric water-feeding pump, the liquid level in the deaerator is monitored through the liquid level sensing module, the electric water-feeding pump is prevented from being damaged due to too low liquid level, the water-feeding pump pressure sensing module monitors the pressure of the water-feeding pump, the motor parameter monitoring module monitors the voltage, current and frequency values of the driving motor, when the monitoring data are not within a normal range value, the alarm module gives an alarm, timely and simultaneously workers adjust the data, meanwhile, the water-feeding pump pressure sensing module uploads the monitored data to the pressure adjusting unit, the comparison module compares the data with a standard pressure value range recorded in an information base, and when the pressure value is not within the range, the pressure is adjusted to a stable state through the pressure adjusting valve control module;
s4, when the power failure state is met, starting and stopping the driving module through the generator in the standby power supply control unit to start the generator, supplying power to the electric water feeding pump through the generator, reminding the residual electric quantity of the generator through the electric quantity reminding module, and charging the generator through the charging module;
s5, a data receiving module receives data monitored by a monitoring unit and switching data of a remote control system and a field control system, the data are uploaded to a database for storage, a classification integration module classifies and integrates the data in the database, a safety protection module carries out safety protection on the data in the database, a deletion module carries out timed deletion on the data in the database, the data in the database enter the system through a login unit when being traced and checked, an account number and a password are input through an account number input module, the login module can log in after the verification is successful, when the password is forgotten in the login, the password is modified through a password modification module, the login module carries out login verification again, and the data can be entered into the database to check the data after the verification is successful.
Preferably, the classification and integration module classifies and integrates data in the database according to time in step S5, and when the monitored pressure value is smaller than the pressure standard value in step S3, the pressure regulating valve control module controls the sectional area between the valve element and the valve seat of the pressure regulating valve to increase the pressure of the water pump, and otherwise controls the sectional area between the valve element and the valve seat of the pressure regulating valve to decrease the pressure of the water pump.
(III) advantageous effects
The invention provides an undisturbed switching control system and a control method for an electric feed pump. Compared with the prior art, the method has the following beneficial effects:
(1) this undisturbed switching control system of motor-driven feed-water pump and control method thereof, realize two way connection through central control system through wireless and stand-by power supply control unit, stand-by power supply control unit includes that the generator opens and stops drive module, electric quantity reminds module and charging module, the setting of generator opening and stopping drive module, make under the state that has a power failure, can not influence the normal work of feed-water pump yet, make motor-driven feed-water pump can the continuous operation, the water supply system of subcritical unit can work by the continuation, electric quantity reminds the module and reminds the electric quantity of generator simultaneously, make things convenient for people in time to supply the electric quantity to the generator.
(2) The undisturbed switching control system of the electric water feeding pump and the control method thereof, the monitoring unit comprises a liquid level sensing module, a water feeding pump pressure sensing module and a motor parameter monitoring module, the pressure adjusting unit comprises a pressure data receiving module, an information base, a comparison module and a pressure regulating valve control module, the liquid level in the deaerator is monitored by the liquid level sensing module in the monitoring unit, the water feeding pump is prevented from being damaged due to too low liquid level, the pressure of the water feeding pump is monitored by the water feeding pump pressure sensing module, the monitored data are uploaded to the pressure adjusting unit, the comparison module compares the data with a standard pressure value range recorded in the information base, when the pressure value is not in the range, the pressure is adjusted by the pressure regulating valve control module, so that the water feeding pump is more stable in the switching operation process, and the reliability of a water supply system is improved.
(3) The remote control system comprises an instruction receiving module, an information processing unit, a control terminal, a water feeding pump start-stop control switch and a first delay relay module, wherein the information processing unit comprises a water feeding pump positioning module and a water feeding pump state query module, the field control system comprises a human-computer interaction unit, a water feeding pump start-stop driving module and a second delay relay module, the human-computer interaction unit comprises a liquid crystal display module, an instruction input module, an equipment state query module and a field monitoring module, through the arrangement of the remote control system and the field control system, the water supply pump can be remotely controlled and automatically controlled on site, meanwhile, the first time delay relay module and the second time delay relay module are arranged, so that the water feeding pump can continuously operate during switching control, and undisturbed switching is realized.
Drawings
FIG. 1 is a schematic block diagram of the architecture of the system of the present invention;
FIG. 2 is a schematic block diagram of the monitoring unit of the present invention;
FIG. 3 is a schematic block diagram of the structure of the login unit of the present invention;
FIG. 4 is a schematic block diagram of the pressure regulating unit according to the present invention;
FIG. 5 is a schematic block diagram of the remote control system of the present invention;
FIG. 6 is a schematic block diagram of the structure of an information processing unit according to the present invention;
FIG. 7 is a schematic block diagram of the field control system of the present invention;
FIG. 8 is a schematic block diagram of the structure of a human-computer interaction unit according to the present invention;
FIG. 9 is a schematic block diagram of the structure of the standby power control unit according to the present invention;
fig. 10 is a schematic block diagram of the structure of a data processing unit of the present invention.
In the figure, 1 a central control system, 2 a login unit, 21 an account number input module, 22 a login module, 23 a password change module, 3 a wireless communication module, 4 a remote control system, 41 an instruction receiving module, 42 an information processing unit, 421 a water pump positioning module, 422 a water pump state query module, 43 a control terminal, 44 a water pump start-stop control switch, 45 a first time delay relay module, 5 a field control system, 51 a man-machine interaction unit, 511 a liquid crystal display module, 512 an instruction input module, 513 an equipment state query module, 514 a field monitoring module, 52 a water pump start-stop driving module, 53 a second time delay relay module, 6 a monitoring unit, 61 a liquid level sensing module, 62 a water pump pressure sensing module, 63 a motor parameter monitoring module, 7 an alarm module, 8 a pressure regulating unit, 81 a pressure data receiving module, 82 an information base, 83 a comparison module, The system comprises a 84 pressure regulating valve control module, a 9 standby power supply control unit, a 91 generator start-stop driving module, a 92 electric quantity reminding module, a 93 charging module, a 10 data processing unit, a 101 database, a 102 data receiving module, a 103 classification integration module, a 104 safety protection module and a 105 deletion module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 10, an embodiment of the present invention provides a technical solution: a undisturbed switching control system of an electric feed pump comprises a central control system 1 and a login unit 2, wherein the central control system 1 is in bidirectional connection with the login unit 2 through wireless, the central control system 1 is in bidirectional connection with a wireless communication module 3 through wireless, the wireless communication module 3 is in bidirectional connection with a remote control system 4 through wireless, the input end of the central control system 1 is electrically connected with the output end of a field control system 5, the input end of the central control system 1 is electrically connected with the output end of a monitoring unit 6, the output end of the monitoring unit 6 is electrically connected with the input end of an alarm module 7, when a problem occurs in monitored data, an alarm is given through the alarm module 7 to remind a worker to process the data in time, the output end of the alarm module 7 is electrically connected with the input end of the central control system 1, and the input end of the central control system 1 is electrically connected with the output end of a pressure adjusting unit 8, the central control system 1 is in bidirectional connection with the standby power supply control unit 9 in a wireless mode, the standby power supply control unit 9 is arranged, so that continuous work of the water feeding pump cannot be influenced in a power failure state, and the central control system 1 is in bidirectional connection with the data processing unit 10 in a wireless mode.
In the embodiment of the invention, the monitoring unit 6 comprises a liquid level sensing module 61, a feed pump pressure sensing module 62 and a motor parameter monitoring module 63, and the pressure regulating unit 8 comprises a pressure data receiving module 81, an information base 82, a comparison module 83 and a pressure regulating valve control module 84, and receives data monitored by the monitoring unit through the pressure data receiving module 81.
In the embodiment of the invention, the login unit 2 comprises an account input module 21, the output end of the account input module 21 is electrically connected with the input end of the login module 22, the account input module 21 is in bidirectional connection with the password change module 23 through wireless, and the login unit 2 is arranged, so that a login user can enter the system to need a system account, the system is prevented from being accessed randomly, and the confidentiality and the safety of the system are improved.
In the embodiment of the present invention, the remote control system 4 includes an instruction receiving module 41, an information processing unit 42, a control terminal 43, a feed pump start/stop control switch 44, and a first delay relay module 45, and the information processing unit 42 includes a feed pump positioning module 421 and a feed pump state query module 422.
In the embodiment of the invention, the field control system 5 comprises a man-machine interaction unit 51, a water feeding pump start-stop driving module 52 and a second delay relay module 53, the man-machine interaction unit 51 comprises a liquid crystal display module 511, an instruction input module 512, an equipment state query module 513 and a field monitoring module 514, and the field monitoring module 514 is arranged to monitor the operation of field personnel and equipment, so that the subsequent viewing is more visual.
In the embodiment of the present invention, the standby power control unit 9 includes a generator start/stop driving module 91, an electric quantity reminding module 92 and a charging module 93, the data processing unit 10 includes a database 101, an input end of the database 101 is electrically connected to an output end of the data receiving module 102, and an input end of the database 101 is electrically connected to an output end of the classification integration module 103.
In the embodiment of the present invention, the input terminal of the database 101 is electrically connected to the output terminal of the security protection module 104, and the input terminal of the database 101 is electrically connected to the output terminal of the deletion module 105.
The invention also discloses a control method of the undisturbed switching control system of the electric feed pump, which specifically comprises the following steps:
s1, when the electric water feeding pump is remotely controlled, an instruction for controlling the switch of the water feeding pump is received through the instruction receiving module 41, then the position of the water feeding pump for sending the instruction is positioned through the water feeding pump positioning module 421 in the information processing unit 42, the pressure state and the motor parameter of the water feeding pump monitored in the monitoring unit 6 are checked through the water feeding pump state inquiry module 422, after the state is qualified, the control terminal 43 controls the electric water feeding pump to work through the water feeding pump start-stop control switch 44, during switching control, the closing time of the water feeding pump start-stop control switch 44 is timed through the first delay relay module 45, and the water feeding pump start-stop control switch 44 is automatically closed after switching to field control;
s2, the electric water feeding pump is controlled through the field control system 5, the electric water feeding pump enters the man-machine interaction unit 51, the instruction of the control switch is input through the instruction input module 512 on the liquid crystal display module 511, the device state query module 513 checks whether the running state of the electric water feeding pump is normal or not, the field monitoring module 514 monitors personnel of field operation equipment, the electric water feeding pump is controlled by the water feeding pump start-stop driving module 52 to work, during switching control, the closing time of the water feeding pump start-stop driving module 52 is timed through the second delay relay module 53, and after switching to remote control, the water feeding pump start-stop driving module 52 of field control is automatically closed;
s3, in the process of operation switching of the electric water-feeding pump, the liquid level in the deaerator is monitored through the liquid level sensing module 61, the electric water-feeding pump is prevented from being damaged due to too low liquid level, the water-feeding pump pressure sensing module 62 monitors the pressure of the water-feeding pump, the motor parameter monitoring module 63 monitors the voltage, current and frequency values of the driving motor, when the monitored data are not within a normal range value, the alarm module 7 gives an alarm, workers adjust the data timely and simultaneously, meanwhile, the water-feeding pump pressure sensing module 62 uploads the monitored data to the pressure adjusting unit 8, the comparison module 83 compares the data with a standard pressure value range recorded in the information base 82, and when the pressure value is not within the range, the pressure is adjusted to a stable state through the pressure adjusting valve control module 84;
s4, when the power failure state is met, the generator is started through the generator start-stop driving module 91 in the standby power supply control unit 9, the generator supplies power to the electric water feeding pump, the electric quantity reminding module 92 reminds the residual electric quantity of the generator, and the generator is charged through the charging module 93;
s5, a data receiving module 102 receives data monitored by a monitoring unit 6 and switching data of a remote control system 4 and a field control system 5, the data are uploaded to a database 101 to be stored, a classification integration module 103 classifies and integrates the data in the database 101, a safety protection module 104 carries out safety protection on the data in the database 101, a deletion module 105 carries out timed deletion on the data in the database 101, the deletion module 105 automatically deletes the information in the database 101 after six months, the data in the database 101 is traced and checked, the data enters the system through a login unit 2, a system account and a password are input through an account input module 21, the login module 22 can log in after verification succeeds, when the password is forgotten to log in, the password is modified through a password modification module 23, login verification is carried out through the login module 22 again, after the verification is successful, the database 101 can be accessed to check the data.
In the embodiment of the present invention, the classification and integration module 103 classifies and integrates the data in the database 101 according to time in step S5, and when the monitored pressure value is smaller than the pressure standard value in step S3, the pressure regulating valve control module 84 controls the sectional area between the valve element and the valve seat of the pressure regulating valve to increase the pressure of the water pump, and conversely, controls the sectional area between the valve element and the valve seat of the pressure regulating valve to decrease the pressure of the water pump.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A control method of an undisturbed switching control system of an electric feed pump is characterized in that the control system comprises a central control system (1) and a login unit (2), the central control system (1) is in bidirectional connection with the login unit (2) through wireless, and the control method comprises the following steps: the central control system (1) is in bidirectional connection with the wireless communication module (3) through wireless, the wireless communication module (3) is in bidirectional connection with the remote control system (4) through wireless, the input end of the central control system (1) is electrically connected with the output end of the field control system (5), the input end of the central control system (1) is electrically connected with the output end of the monitoring unit (6), the output end of the monitoring unit (6) is electrically connected with the input end of the alarm module (7), the output end of the alarm module (7) is electrically connected with the input end of the central control system (1), the input end of the central control system (1) is electrically connected with the output end of the pressure regulating unit (8), and the central control system (1) is in bidirectional connection with the standby power supply control unit (9) through wireless, the central control system (1) is in bidirectional connection with the data processing unit (10) through wireless;
the monitoring unit (6) comprises a liquid level sensing module (61), a water feeding pump pressure sensing module (62) and a motor parameter monitoring module (63), and the pressure adjusting unit (8) comprises a pressure data receiving module (81), an information base (82), a comparison module (83) and a pressure regulating valve control module (84);
the login unit (2) comprises an account input module (21), the output end of the account input module (21) is electrically connected with the input end of the login module (22), and the account input module (21) is in bidirectional connection with the password change module (23) in a wireless mode;
the remote control system (4) comprises an instruction receiving module (41), an information processing unit (42), a control terminal (43), a water feeding pump start-stop control switch (44) and a first delay relay module (45), wherein the information processing unit (42) comprises a water feeding pump positioning module (421) and a water feeding pump state query module (422);
the field control system (5) comprises a man-machine interaction unit (51), a water feeding pump start-stop driving module (52) and a second delay relay module (53), wherein the man-machine interaction unit (51) comprises a liquid crystal display module (511), an instruction input module (512), an equipment state query module (513) and a field monitoring module (514);
the standby power supply control unit (9) comprises a generator start-stop driving module (91), an electric quantity reminding module (92) and a charging module (93), the data processing unit (10) comprises a database (101), the input end of the database (101) is electrically connected with the output end of the data receiving module (102), and the input end of the database (101) is electrically connected with the output end of the classification integration module (103);
the input end of the database (101) is electrically connected with the output end of the safety protection module (104), and the input end of the database (101) is electrically connected with the output end of the deletion module (105);
the method is characterized in that: the method specifically comprises the following steps:
s1, when the electric water feeding pump is remotely controlled, an instruction for controlling a switch of the water feeding pump is received through an instruction receiving module (41), then a water feeding pump positioning module (421) in an information processing unit (42) positions a position of the water feeding pump for sending the instruction, a water feeding pump state query module (422) checks pressure states and motor parameters of the water feeding pump monitored in a monitoring unit (6), after the states are qualified, a control terminal (43) controls the electric water feeding pump to work through a water feeding pump start-stop control switch (44), during switching control, the closing time of the water feeding pump start-stop control switch (44) is timed through a first delay relay module (45), and the water feeding pump start-stop control switch (44) is automatically closed after switching to field control;
s2, the electric water feeding pump is controlled through the field control system (5), the electric water feeding pump enters a man-machine interaction unit (51), an instruction of a control switch is input through an instruction input module (512) on the liquid crystal display module (511), an equipment state query module (513) checks whether the running state of the electric water feeding pump is normal or not, a field monitoring module (514) monitors personnel of field operation equipment, the electric water feeding pump starting and stopping driving module (52) controls the electric water feeding pump to work, during switching control, the closing time of the electric water feeding pump starting and stopping driving module (52) is timed through the second delay relay module (53), and after switching is carried out to remote control, the water feeding pump starting and stopping driving module (52) of the field control is automatically closed;
s3, in the process of operation switching of the electric water-feeding pump, the liquid level in the deaerator is monitored through the liquid level sensing module (61), the electric water-feeding pump is prevented from being damaged due to too low liquid level, the pressure of the water-feeding pump is monitored through the water-feeding pump pressure sensing module (62), the motor parameter monitoring module (63) monitors the voltage, current and frequency values of the driving motor, when the monitoring data are not within a normal range value, the alarm module (7) gives an alarm, workers adjust the data timely and simultaneously, meanwhile, the water-feeding pump pressure sensing module (62) uploads the monitored data to the pressure adjusting unit (8), the comparison module (83) compares the data with a standard pressure value range recorded in the information base (82), and when the pressure value is not within the range, the pressure is adjusted to a stable state through the pressure adjusting valve control module (84);
s4, when the power failure state is achieved, the generator is started through a generator start-stop driving module (91) in the standby power supply control unit (9), the generator supplies power to the motor-driven water feed pump, the electric quantity reminding module (92) reminds the residual electric quantity of the generator, and the generator is charged through the charging module (93);
s5, a data receiving module (102) receives data monitored by a monitoring unit (6) and switching data of a remote control system (4) and a field control system (5), the data are uploaded to a database (101) to be stored, a classification integration module (103) classifies and integrates the data in the database (101), a safety protection module (104) carries out safety protection on the data in the database (101), a deletion module (105) carries out timed deletion on the data in the database (101), when the data in the database (101) is traced and checked, the data enter the system through a login unit (2), a system account and a password are input through an account input module (21), the login module (22) can log in after verification succeeds, when the password is forgotten in login, the password is modified through a password modification module (23), and login verification is carried out through the login module (22) again, after the verification is successful, the data can be entered into the database (101) to be checked.
2. The control method of the undisturbed switching control system of the electric feed-water pump as claimed in claim 1, wherein the control method comprises the following steps: and the classification and integration module (103) classifies and integrates the data in the database (101) according to time in the step S5, and when the monitored pressure value is smaller than the pressure standard value in the step S3, the pressure regulating valve control module (84) controls the sectional area between the valve core and the valve seat of the pressure regulating valve to be increased and the pressure of the water pump to be increased, otherwise, controls the sectional area between the valve core and the valve seat of the pressure regulating valve to be decreased and reduces the pressure of the water pump.
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| CN100368949C (en) * | 2005-04-28 | 2008-02-13 | 南京科远控制工程有限公司 | Automatic control system based on artificial intelligence for heat-engine plant |
| CN201654517U (en) * | 2010-04-23 | 2010-11-24 | 谢守勇 | Remote monitoring system of pumping station |
| CN102635543B (en) * | 2012-04-13 | 2015-11-04 | 中冶南方工程技术有限公司 | No-harass switch water pump control method |
| CN203051069U (en) * | 2012-08-03 | 2013-07-10 | 深圳市宏银拾科技有限公司 | Water pump controller |
| US20150078917A1 (en) * | 2013-09-19 | 2015-03-19 | General Electric Company | System and method for converterless operation of motor-driven pumps |
| CN204984826U (en) * | 2015-09-26 | 2016-01-20 | 沧州市荣昌电气设备有限公司 | Multi -functional oil -field flooding pump unperturbed switches monitoring device |
| CN205375103U (en) * | 2016-02-02 | 2016-07-06 | 昆明九天科技有限公司 | Pump station remote control system |
| CN105508231B (en) * | 2016-02-03 | 2017-09-01 | 华北电力科学研究院有限责任公司 | A kind of control method and system of the public electrically driven feed pump of thermal power generation unit |
| CN205330945U (en) * | 2016-02-03 | 2016-06-22 | 华北电力科学研究院有限责任公司 | Public electric feed water pump's of thermal generator set control system |
| CN106168208B (en) * | 2016-08-24 | 2017-12-12 | 渤海大学 | The intelligence control system and control method of single-phase water pump |
| CN108873842B (en) * | 2018-07-03 | 2021-05-04 | 江苏创进泵阀制造有限公司 | One-stop unattended pump station automatic control system |
| CN109162909A (en) * | 2018-08-14 | 2019-01-08 | 台州市菱士达电器有限公司 | A kind of pump variable frequency device with pump monitoring system |
| CN209324630U (en) * | 2018-11-05 | 2019-08-30 | 佛山市铸美电气有限公司 | A kind of control system of water pump |
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