CN115434392A - Intelligent monitoring system and monitoring method for water pump house - Google Patents
Intelligent monitoring system and monitoring method for water pump house Download PDFInfo
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- CN115434392A CN115434392A CN202211381304.8A CN202211381304A CN115434392A CN 115434392 A CN115434392 A CN 115434392A CN 202211381304 A CN202211381304 A CN 202211381304A CN 115434392 A CN115434392 A CN 115434392A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 447
- 238000012544 monitoring process Methods 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 68
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 30
- 238000004659 sterilization and disinfection Methods 0.000 claims description 26
- 238000007654 immersion Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 230000011664 signaling Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 6
- 238000013024 troubleshooting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/072—Arrangement of flowmeters
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/074—Arrangement of water treatment devices
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/078—Combined units with different devices; Arrangement of different devices with respect to each other
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Abstract
The invention discloses an intelligent monitoring system and a monitoring method for a water pump room, wherein a liquid level monitoring module is used for collecting a water level signal in a water tank and sending the water level signal to a processing module; the pressure sensing module is used for monitoring a pressure signal of a water outlet pipeline of the water tank and sending the pressure signal to the processing module; the processing module is used for analyzing and processing the water level signal and the pressure signal, and sending a first instruction to the first control unit and a second instruction to the second control unit according to a processing result; the first control unit controls the working state of the electromagnetic valve under the action of the first instruction; the second control unit controls the working state of the water pump under the action of the second instruction; the invention has the advantages that the electromagnetic valve and the water pump in the water pump room are sent with control instructions, and the equipment state in the water pump room is monitored in real time, so that the hidden danger is checked in time, and the risk of water cut-off is reduced.
Description
Technical Field
The invention relates to the technical field of intelligent control of a water pump room, in particular to an intelligent monitoring system and a monitoring method for the water pump room.
Background
In civil buildings, a domestic water supply system is a necessary facility and is divided into a variable-frequency pressurizing water supply system and a gravity water supply system according to different water supply processes, the difference of the two processes is that the variable-frequency pressurizing water supply system is only provided with a water source water tank and directly pressurizes and supplies water through a variable-frequency pump set, the gravity water supply system is provided with a high-level water tank at a high level besides the water source water tank, and the water supply pump set pumps water from the water source water tank to the high-level water tank and then supplies water through the gravity of the high-level water tank. For water supply equipment such as a water tank, a water supply pump set, a water supply electromagnetic valve, secondary water supply disinfection equipment, water quality monitoring equipment and the like, and control equipment such as a control cabinet for controlling the operation of the water supply pump set and an electromagnetic valve control cabinet for controlling the opening and closing of the electromagnetic valve, the equipment is not monitored by people for a long time except for regular manual inspection, the equipment is in low-efficiency operation or faults cannot be found in advance, so that the energy consumption is increased, water break accidents are caused, and the water consumption of residents is seriously influenced.
In view of this, the present application is specifically made.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, when the manual inspection is carried out on the related equipment of the water pump house regularly, the problems existing in the equipment cannot be found in time, so that the energy consumption of the equipment is increased, the water is cut off, and the water consumption of residents is influenced seriously; the invention provides an intelligent monitoring system and a monitoring method for a water pump room, which can realize real-time monitoring of running equipment in the water pump room, timely troubleshooting of problems in the equipment and corresponding measures.
The invention is realized by the following technical scheme:
an intelligent monitoring system of a water pump room comprises a liquid level monitoring module, a pressure sensing module, a processing module, a first control unit and a second control unit;
the liquid level monitoring module is used for collecting a water level signal in the water tank and sending the water level signal to the processing module;
the pressure sensing module is used for monitoring a pressure signal of a water outlet main pipe of the water pump and sending the pressure signal to the processing module;
the processing module is used for analyzing and processing the water level signal and the pressure signal, and sending a first instruction to the first control unit and a second instruction to the second control unit according to a processing result;
the first control unit controls the working state of the electromagnetic valve under the action of the first instruction;
and the second control unit controls the working state of the water pump under the action of the second instruction.
In a traditional water pump room monitoring system, for water supply equipment such as a water tank, a water supply pump set, a water supply electromagnetic valve, secondary water supply disinfection equipment, water quality monitoring equipment and the like, control equipment such as a control cabinet for controlling the operation of the water supply pump set, an electromagnetic valve control cabinet for controlling the opening and closing of the electromagnetic valve and the water immersion state of a pump room, the equipment is usually inspected regularly by manpower for a long time, and the performance of the equipment is detected, but when the method is adopted for detecting the water pump room monitoring system, the equipment in the water pump room monitoring system is usually unmanned to monitor, the problems of the equipment in the water pump room monitoring system cannot be found in time, and corresponding measures cannot be taken in time for the corresponding problems; therefore, the invention provides an intelligent monitoring system of a water pump room, which monitors the water level and the pressure in real time by arranging different monitoring modules, and makes corresponding control measures according to the monitoring result, thereby realizing the real-time control of the monitoring system of the water pump room, timely troubleshooting hidden dangers and reducing the risk of water cut-off.
Preferably, the monitoring system further comprises a communication module, a water quality monitoring module, a submergence sensor, a secondary water supply disinfection module and a water pump state monitoring module, wherein the input end of the communication module is respectively connected with the output end of the treatment module, the output end of the water quality monitoring module and the output end of the water pump control module, the output end of the submergence sensor is connected with the input end of the treatment module, and the output end of the secondary water supply disinfection module is connected with the input end of the water quality monitoring module;
the water quality monitoring module is used for monitoring the water quality state and the state of water quality equipment in real time and transmitting the water quality state and the state of the water quality equipment to the communication module;
the water pump state monitoring module is used for monitoring the running state of the water pump in real time and transmitting the running state to the communication module;
the secondary water supply disinfection module is used for monitoring the running state of the secondary water supply disinfection equipment in real time and transmitting the running state of the disinfection equipment to the communication module;
the communication module is used for transmitting the water quality state, the running state of the water pump and the running state of the disinfection equipment to a terminal;
the immersion sensor is used for detecting whether the ground of the water pump room is immersed.
Preferably, the processing module comprises an analog-to-digital converter, a data collector and a data processing module;
the analog-to-digital converter is used for converting the received analog signal into a digital signal and inputting the digital signal into the data processing module;
the data acquisition unit is used for acquiring digital signals in each sensor and inputting the digital signals into the data processing module;
and the data processing module is used for analyzing and processing the input digital signal and respectively sending a first instruction to the first control unit and a second instruction to the second control unit according to the analyzed and processed result.
Preferably, the monitoring system further comprises a flow sensor, the flow sensor is used for monitoring a water flow analog signal at the water inlet of the water pump and transmitting the collected water flow analog signal to the processing module, and the processing module processes the water flow analog signal and transmits the processed signal to the terminal through the communication module.
Preferably, the monitoring system is used in a source water tank side operation mode and/or a target water tank side operation mode and/or a variable frequency water supply system control cabinet mode.
The invention also provides an intelligent monitoring method of the water pump room, which comprises the following steps:
acquiring a water level signal;
converting the water level signal into a first digital signal, and comparing the first digital signal with a threshold signal to obtain a water level state signal;
generating a first instruction signal and a second instruction signal according to the water level state signal;
and controlling the working state of the electromagnetic valve by using the first instruction signal, and controlling the working state of the water pump by using the second instruction signal.
Preferably, when the water pump room is monitored in multiple stages, the method further comprises the following steps:
acquiring a pressure signal, wherein the pressure signal is the pressure signal of a water outlet main pipe of a water pump;
converting the pressure signal to a second digital signal;
and controlling the electromagnetic valve and the water pump based on the water level state signal and the second digital signal.
Preferably, the water level status signal includes an ultra-low water level signal, a normal water level signal, and an overflow water level signal.
Preferably, when the water level state signal is an ultra-low water level state signal or a low water level state signal, the generated first instruction signal is a valve opening signal, and the electromagnetic valve is opened; the generated second instruction signal is a water pump starting signal, and after the electromagnetic valve is opened, the water pump is started again;
when the water level state signal is a normal water level state signal or an overflow water level state signal, generating a first instruction signal which is a valve closing signal, and closing the electromagnetic valve signal after the water pump is disconnected; and the generated second instruction signal is a water pump disconnection signal, and the water pump is disconnected.
Preferably, when the multi-stage monitoring is carried out, the water level state signal is a normal water level state signal, and an overpressure signal exists, the water pump is controlled to be closed; and when the water level state signal is an overflow water level state signal, closing the valve of the electromagnetic valve.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the intelligent monitoring system and the monitoring method for the water pump house, provided by the embodiment of the invention, the water level and the pressure are monitored in real time by arranging different monitoring modules, and corresponding control measures are taken according to the monitoring result, so that the real-time control of the monitoring system for the water pump house is realized, the hidden danger can be checked in time, and the risk of water cut-off is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art may also derive other related drawings based on these drawings without inventive effort.
FIG. 1 is a schematic view of a monitoring system;
FIG. 2 is a schematic block diagram of a specific implementation of the first embodiment;
FIG. 3 is a ladder diagram of the control logic of the valve control unit;
FIG. 4 is a valve controlled external output circuit;
FIG. 5 is a ladder diagram of the control logic of the water pump control command unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the invention.
Example one
In a traditional water pump house monitoring system, for water supply equipment such as a water tank, a water supply pump set, a water supply electromagnetic valve, secondary water supply disinfection equipment, water quality monitoring equipment and the like, as well as control equipment such as a control cabinet for controlling the operation of the water supply pump set and an electromagnetic valve control cabinet for controlling the opening and closing of the electromagnetic valve, the equipment is usually patrolled and examined manually and periodically for a long time, but when the method is adopted to detect the water pump house monitoring system, the equipment inside is usually unmanned and cannot find the problems of the equipment inside in time, and corresponding measures cannot be taken to the corresponding problems in time.
The embodiment provides an intelligent monitoring system for a water pump room, which realizes real-time control of the monitoring system for the water pump room by arranging different monitoring modules to monitor the water level and the pressure in real time and making corresponding control measures according to the monitoring result, can timely troubleshoot hidden dangers and reduce the risk of water cut-off,
the system is characterized in that main domestic water supply facilities and equipment are monitored in a unified manner, wherein the monitoring comprises remote real-time monitoring of water tank water level, water pump starting and stopping or faults, valve opening and closing states, working states of secondary water supply disinfection equipment, water tank liquid level, water immersion states of a water supply pump room or a water tank room, water quality indexes, water supply pressure, water and electricity consumption and the like, and meanwhile, a main controller is used for sending electromagnetic valves and water pump interlocking operation instructions;
the liquid level monitoring module is used for collecting a water level signal in the water tank and sending the water level signal to the processing module;
the set liquid level monitoring module is a water level monitoring host in the embodiment, and is mainly characterized in that a water level sensor is arranged on a water tank to monitor a water level signal, an output signal S1 of the water level monitoring host is a 4-20mA analog quantity signal, and after signal processing of a data acquisition unit, digital quantity signals of an ultra-low water level BL1, a low water level BL2, a normal water level BL3 and an overflow water level BL4 are obtained and input into a data processing unit. Four water level signals are the common process requirements, and when more water level signals are needed, the corresponding setting can be carried out. The water level signal is displayed simultaneously in the configuration display unit and the management center, and the alarm is synchronously given when the water level is ultralow and the water level is overflowing. The data processing unit performs logic operation on the water level signal and other signals and outputs operation instructions of the water inlet electromagnetic valve and the water supply pump set.
The pressure sensing module is used for monitoring a pressure signal of a water outlet main pipe of the water pump and sending the pressure signal to the processing module;
in fig. 2, the pressure sensing module is the pressure sensor in fig. 2, and the pressure sensor is installed on the water outlet main pipe of the water feed pump set to monitor the pipeline pressure. The output signal S2 of the pressure sensor is a 4-20mA analog quantity signal, and after signal processing of the data acquisition unit, a pipeline pressure digital quantity signal is obtained and is displayed simultaneously on the configuration display unit and the management center. For the frequency conversion pressurization water supply system, a 4-20mA analog quantity signal is simultaneously used as a control signal of a frequency conversion pump set.
The processing module is used for analyzing and processing the water level signal and the pressure signal, and sending a first instruction to the first control unit and a second instruction to the second control unit according to a processing result;
the processing module comprises an analog-to-digital converter, a data acquisition unit and a data processing module;
the analog-to-digital converter is used for converting the received analog signal into a digital signal and inputting the digital signal into the data processing module;
the data acquisition unit is used for acquiring digital signals in each sensor and inputting the digital signals into the data processing module;
the data processing module is used for analyzing and processing the input digital signal and respectively sending a first instruction to the first control unit and a second instruction to the second control unit according to the analyzed and processed result;
the first control unit controls the working state of the electromagnetic valve under the action of the first instruction;
and the second control unit controls the working state of the water pump under the action of the second instruction.
In this embodiment, the first control unit is the valve control unit in fig. 2, the valve control unit controls the electromagnetic valve, the second control unit is the water pump control instruction unit in fig. 2, the water pump control unit controls the water pump, the data acquisition unit and the analog-to-digital converter are the data acquisition and conversion unit in fig. 2, and the data processing module is the data processing unit in fig. 2, therefore, the monitoring system can monitor the water level in the water source water tank in real time, and control the electromagnetic valve and the water pump in real time according to the monitored water level signal, thereby realizing real-time intelligent monitoring of the water pump room system, and reducing the occurrence of faults.
In this embodiment, the monitoring system further comprises a communication module, a water quality monitoring module, a submergence sensor, a secondary water supply disinfection module and a water pump state monitoring module, wherein the input end of the communication module is respectively connected with the output end of the processing module, the output end of the water quality monitoring module and the output end of the water pump control module, the output end of the submergence sensor is connected with the input end of the processing module, and the output end of the secondary water supply disinfection module is connected with the input end of the water quality monitoring module;
the water quality monitoring module is used for monitoring the water quality state and the state of water quality equipment in real time and transmitting the water quality state and the state of the water quality equipment to the communication module;
the water pump state monitoring module is used for monitoring the running state of the water pump in real time and transmitting the running state to the communication module;
the communication module is used for transmitting the water quality state, the running state and the processing result to a terminal;
the immersion sensor is used for detecting whether the ground of the water pump room is immersed in water or not;
the secondary water supply disinfection module is used for monitoring the running state of the secondary water supply disinfection equipment in real time and transmitting the running state of the disinfection equipment to the communication module.
In this embodiment, the water quality monitoring module is the water quality monitoring host shown in fig. 2, the water pump control module is the water pump control cabinet shown in fig. 2, the communication module is the data communication shown in fig. 2, the terminal is the configuration monitoring system shown in fig. 2, and the set communication module can send all data information obtained after collection and processing to the configuration monitoring system, so as to realize remote control and management of the water pump room control system.
The water quality monitoring host machine is process equipment and provided with an RS485 communication interface, an output signal is S9, the water quality monitoring host machine is communicated with the intelligent monitoring system control cabinet through RS485, main water quality data and state data of the water quality monitoring host machine are collected, the main water quality data and the state data of the water quality monitoring host machine are displayed simultaneously in a configuration monitoring unit and a management center after data processing, and an alarm is given when the water quality does not reach the standard.
And secondary water supply disinfection equipment is also arranged, the secondary water supply disinfection equipment is process equipment, and output signals S6-1 to S2 of the secondary water supply disinfection equipment are a trunk junction signal group consisting of an operating state (S6-1) and a fault state (S6-2) of the disinfection equipment and a signal 2 group. After data processing, the data are displayed on the configuration monitoring unit and the management center at the same time. And alarming when a fault occurs, and reminding maintenance management personnel to carry out troubleshooting.
The monitoring system further comprises a flow sensor, the flow sensor is used for monitoring a water flow analog signal at the water inlet of the water pump and transmitting the collected water flow analog signal to the processing module, and the processing module processes the water flow analog signal and transmits the processed signal to the monitoring system through the communication module.
In this embodiment, a flow sensor is installed on the water inlet main pipe for municipal water supply to monitor the total water supply flow. The output signal S3 of the flow sensor is a 4-20mA analog quantity signal. And after signal processing of the data acquisition unit, water consumption data is obtained.
An intelligent electric meter is installed on the water pump control cabinet, an RS485 communication interface S10 is arranged, 485 communication is adopted with the intelligent monitoring system control cabinet, and main operation voltage, current and active energy consumption data are collected.
The relevant data is stored at the management center workstation. And (4) displaying the water and electricity energy consumption data in a report form or a graph after data processing, and checking the flow and the water consumption in real time.
Analyzing and processing the parameters, and counting the energy consumption data of unit water volume in a specified time period, namely
Δ W is the electrical energy consumed over a specified period of time (which may be days, months or years), and Δ Q is the amount of water over a specified period of time. Through historical data comparison, decision basis can be provided for energy-saving operation of the water pump.
The monitoring system is used for a water source water tank side operation mode, a target water tank side operation mode and/or a variable-frequency water supply system control cabinet mode, can be applied to any one mode, and can realize connection among multiple modes.
In this embodiment, the system further comprises a configuration display unit and a water immersion sensor, and the pump station operation interface is simulated and reproduced through a configuration process. The water pump house and the management center are used for displaying. The method comprises the following steps: dynamically displaying the water level of the water tank, and alarming for the ultra-low water level and the overflow water level; alarming for surface water accumulation; starting and stopping a feed pump and dynamically displaying fault states; dynamically displaying the water quality index; dynamically displaying the running and stopping states of water quality monitoring and secondary disinfection equipment; dynamically displaying the effluent pressure; and dynamically displaying water quantity and energy consumption.
The water immersion sensor is arranged on the ground between the water supply pump room and the water tank, and output signals S4 and S5 of the water immersion sensor are dry contact signals. When the ground is immersed, the data acquisition unit acquires an immersion signal, and after data processing, the immersion signal is displayed and alarmed at the same time at the configuration monitoring unit and the management center to remind maintenance and management personnel to carry out troubleshooting.
In this embodiment, set up water pump control command unit and valve control unit, carry out the interlocking control of water level, specific control principle as follows:
as shown in fig. 3 and 4, the valve control principle is schematically illustrated, and the specific control is as follows:
the water inlet electromagnetic valve of the water tank is controlled by the water level signal of the water tank and the pressure signal on the water outlet main pipe in an interlocking way. The valve control unit outputs a switching value control instruction to the water tank electromagnetic valve. The control logic is shown in fig. 3.
The water level signals S1 from the liquid level monitoring host after signal processing are four groups of normally open signals: i0.1 I0.2, I0.3 and I0.4 which are respectively signals of an ultra-low water level BL1, a low water level BL2, a normal water level BL3 and an overflow water level BL 4;
the pressure signal S2 after digital conversion from a pressure sensor arranged on the pipeline is a normally open signal: i is 0.5; and I0.5 is transmitted to a monitoring system control cabinet M2 at the target water tank side through a communication bus.
01 is a control command of the solenoid valve of the present stage;
the system is characterized in that:
in the drawings, KA1 to KA7 represent coils (-) and auxiliary contacts (- | -, - | \\| -) of the intermediate relay, respectively.
a) When the water level of the water tank is BL1 or BL2, the KA5 is electrified to enable the KA1 to be electrified and self-locked, the normally closed auxiliary contact is disconnected, the KA3 is not electrified, the KA3 normally open auxiliary contact maintains the disconnected state, 01 outputs a disconnection signal and controls the electromagnetic valve to be opened;
b) When the water level of the water tank is BL3 or BL 4; KA6 is electrified to reset KA1, and the normally closed contact of the contact is returned to the normally closed state. The KA5 normally closed auxiliary contact restores the normally closed state, and KA2 circular telegram and auto-lock for time module KF1 coil circular telegram, its normally open auxiliary contact KF1 is closed after the time delay, and the KA3 coil circular telegram, its normally open contact is closed, and 01 output closure signal, control flap are closed.
The closing instruction of the valve is delayed by a time relay, so that the valve is ensured to be interlocked with the stop logic of the water pump in the figure 5, and the aim of stopping the pump and then closing the valve is fulfilled. Meanwhile, for a multi-stage system, logic control is simpler through time sequence matching, and adverse factors such as high wiring implementation difficulty and high interference in signal linkage are avoided.
c) For the water inlet electromagnetic valve of the water tank of the current stage, the S2 signal is shielded, and I0.5 is in a normally open state. When the water supply system is a multi-stage system, a pressure signal S2 of the water outlet main pipe is used for interlocking control of a target water tank electromagnetic valve, when an overpressure signal S2 of the water supply main pipe is received through the communication bus, the KA7 coil is electrified, the normally closed auxiliary contact of the KA7 coil is disconnected, if the water level reaches BL3, the coil KA6 is not electrified, the valve is kept opened at the moment, and if the water level continues to rise to BL4, the KA6 coil is electrified, and the valve is controlled to be closed.
The external output circuit controlled by the electromagnetic valve is specifically shown in fig. 4, the manual-automatic control change-over switch SAC, the manual buttons SS and SF and the intermediate relay KA are arranged for controlling the electromagnetic valve, the working state of the electromagnetic valve is displayed by an indicator lamp on site in a system control cabinet, and the electromagnetic valve is powered by an alternating current 220V power supply of a secondary circuit in the system control cabinet and protected by a fuse FA. The PGG lamp is turned on to be in an open state, and the PGR lamp is turned on to be in a closed state. And the valve is opened and closed under the manual condition through the control of the buttons SS and SF, and the manual operation is used for debugging and manually overhauling working conditions. In the automatic state, the PLC outputs a switching value signal 01, namely a KA3 output signal in fig. 3 for control. When the KA3 is closed, the intermediate relay KA is electrified to enable the electromagnetic valve power supply to be connected, and therefore closing control is conducted.
The control logic of the water pump control instruction unit is shown in fig. 5, the monitoring system control cabinet is set to be in an M1 mode, and the water feed pump set is controlled in an interlocking mode through a target water tank water level signal and a pressure signal on the water outlet main pipe. And the water pump control instruction unit outputs a switching value control instruction to the water pump control cabinet.
The water level signal S1 from the liquid level monitoring host of the target water tank after signal processing is four groups of normally open signals: i1.1 I1.2, I1.3 and I1.4, respectively corresponding to the ultra-low water level BL1, the low water level BL2, the normal water level BL3 and the overflow water level BL4 of the target water tank.
A pressure signal S2 from a main pipe pressure sensor after signal processing is an analog quantity signal of 4-20mA and a normally open signal I0.5 after only digital conversion;
the water level signal S1 from the liquid level monitoring host of the water source water tank after signal processing is a normally open signal: i0.5, corresponding to the ultralow water level BL1 of the water source water tank.
The system is characterized in that:
in the figure, KA1 to KA8 represent a coil (-) and an auxiliary contact (- | -, - \\| -) of an intermediate relay, respectively.
a) When water pump control command unit received target water tank water level signal BL1 or BL2, KA5 circular telegram makes KA1 circular telegram and auto-lock, and the disconnection of normally closed auxiliary contact, the circular telegram of time module KF2 coil, through the closure of time delay back KF2, makes KA4 circular telegram, its normally open auxiliary contact closure, 02 output start signal, control water pump start. The starting instruction of the water pump is delayed by a time relay, so that the starting instruction is linked with the opening logic of the electromagnetic valve in the figure 3, and the purpose of opening the valve before starting the pump is realized. Meanwhile, for a multi-stage system, logic control is simpler through time sequence matching, and adverse factors such as high wiring implementation difficulty and high interference in signal linkage are avoided.
b) When the water pump control instruction unit receives a target water tank water level signal BL3 or BL4, the KA6 is electrified, so that the KA1 is powered off and reset, the KA2 coil is powered on, the KA2 normally-closed contact is opened, the KA4 coil is powered off and reset, the normally-open auxiliary contact is disconnected, the 02 outputs a disconnection signal, and the water pump is controlled to stop.
c) When the water pump control command unit receives an overpressure signal I0.5 of the water outlet main pipe, the KA7 coil is electrified, so that the coil KA4 is powered off and reset, the normally open auxiliary contact is disconnected, a disconnection signal is output by the 02, and the water pump is controlled to stop. When the target tank water level is at BL1 or BL2 and the overpressure signal is reset, the water pump may continue to operate.
c) When the water pump control instruction unit receives a water source water tank signal BL1, the coil KA8 is electrified, so that the coil KA4 is powered off and reset, the normally open auxiliary contact is disconnected, and a disconnection signal is output by the coil 02 to control the water pump to stop. When the target water tank water level is at BL1 or BL2 and the source water tank ultra-low liquid level signal BL1 is reset, the water pump can continue to operate.
d) When the control mode is set to be M3, the water pump control unit inputs 4-20mA analog quantity signals collected by the pressure sensor to the frequency converter of the pump group at the current stage to serve as adjusting signals of the frequency conversion water pump, and meanwhile, the requirements of item c) are met.
The utility model discloses a water pump house intelligent monitoring system carries out real-time supervision to water level and pressure through setting up different monitoring module, is making corresponding control measure according to the result of monitoring, has realized the real time control to water pump house monitored control system to can in time investigate hidden danger, reduce the risk of cutting off the water supply.
Example two
The embodiment discloses an intelligent monitoring method for a water pump room, which is realized on the basis of the first embodiment and comprises the following steps:
acquiring a water level signal; converting the water level signal into a first digital signal, and comparing the first digital signal with a threshold signal to obtain a water level state signal; generating a first instruction signal and a second instruction signal according to the water level state signal; and controlling the working state of the electromagnetic valve by using the first instruction signal, and controlling the working state of the water pump by using the second instruction signal.
When the water pump house is multistage control, still include: acquiring a pressure signal, wherein the pressure signal is a pressure signal of a water source water tank pipeline; converting the pressure signal to a second digital signal; and controlling the electromagnetic valve and the water pump based on the water level state signal and the second digital signal.
The water level state signals comprise an ultra-low water level signal, a normal water level signal and an overflow water level signal.
When the water level state signal is an ultra-low water level state signal or a low water level state signal, the generated first instruction signal is a valve opening signal, and the electromagnetic valve is opened; the generated second instruction signal is a water pump closing signal, and the water pump is closed after the electromagnetic valve is opened;
when the water level state signal is a normal water level state signal or an overflow water level state signal, generating a first instruction signal which is a valve closing signal, and closing the electromagnetic valve signal after the water pump is disconnected; and the generated second instruction signal is a water pump disconnection signal, and the water pump is disconnected.
When the water level state signal is a normal water level state signal and an overpressure signal exists during multi-level monitoring, the water pump is controlled to be closed; and when the water level state signal is an overflow water level state signal, closing the valve of the electromagnetic valve. For the water inlet electromagnetic valve of the water tank of the current stage, the S2 signal is shielded, and I0.5 is in a normally open state. When the water supply system is a multi-stage system, the pressure signal S2 of the water outlet main pipe is used for controlling the target water tank electromagnetic valve in an interlocking manner, when the overpressure signal S2 of the water supply main pipe is received through the communication bus, if the water level reaches BL3, the overpressure signal still exists, the valve is kept opened at the moment, the alarm is given, and when the water level continues to rise to BL4, the valve is controlled to be closed.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An intelligent monitoring system of a water pump room is characterized by comprising a liquid level monitoring module, a pressure sensing module, a processing module, a first control unit and a second control unit;
the liquid level monitoring module is used for collecting a water level signal in the water tank and sending the water level signal to the processing module;
the pressure sensing module is used for monitoring a pressure signal of a water outlet main pipe of the water pump and sending the pressure signal to the processing module;
the processing module is used for analyzing and processing the water level signal and the pressure signal, and sending a first instruction to the first control unit and a second instruction to the second control unit according to a processing result;
the first control unit controls the working state of the electromagnetic valve under the action of the first instruction;
and the second control unit controls the working state of the water pump under the action of the second instruction.
2. The intelligent monitoring system of claim 1, further comprising a communication module, a water quality monitoring module, a submergence sensor, a secondary water supply disinfection module and a water pump state monitoring module, wherein an input end of the communication module is respectively connected with an output end of the processing module, an output end of the water quality monitoring module and an output end of the water pump control module, an output end of the submergence sensor is connected with an input end of the processing module, and an output end of the secondary water supply disinfection module is connected with an input end of the water quality monitoring module;
the water quality monitoring module is used for monitoring the water quality state and the state of water quality equipment in real time and transmitting the water quality state and the state of the water quality equipment to the communication module;
the water pump state monitoring module is used for monitoring the running state of the water pump in real time and transmitting the running state to the communication module;
the secondary water supply disinfection module is used for monitoring the running state of the secondary water supply disinfection equipment in real time and transmitting the running state of the disinfection equipment to the communication module;
the communication module is used for transmitting the water quality state, the running state of the water pump and the running state of the disinfection equipment to a terminal;
the immersion sensor is used for detecting whether the ground of the water pump room is immersed.
3. The intelligent monitoring system of a water pump house according to claim 2, wherein the processing module comprises an analog-to-digital converter, a data collector and a data processing module;
the analog-to-digital converter is used for converting the received analog signal into a digital signal and inputting the digital signal into the data processing module;
the data acquisition unit is used for acquiring digital signals in each sensor and inputting the digital signals into the data processing module;
and the data processing module is used for analyzing and processing the input digital signal and respectively sending a first instruction to the first control unit and a second instruction to the second control unit according to the analyzed and processed result.
4. The intelligent monitoring system of claim 3, further comprising a flow sensor, wherein the flow sensor is configured to monitor a water flow analog signal at a water inlet of the water pump, and transmit the collected water flow analog signal to the processing module, and the processing module processes the water flow analog signal and transmits the processed signal to the terminal through the communication module.
5. The intelligent monitoring system of claim 4, wherein the monitoring system is used in a source tank side operation mode and/or a target tank side operation mode and/or a variable frequency water supply system control cabinet mode.
6. An intelligent monitoring method for a water pump room is characterized by comprising the following steps:
acquiring a water level signal;
converting the water level signal into a first digital signal, and comparing the first digital signal with a threshold signal to obtain a water level state signal;
generating a first instruction signal and a second instruction signal according to the water level state signal;
and controlling the working state of the electromagnetic valve by the first instruction signal, and controlling the working state of the water pump by the second instruction signal.
7. The intelligent monitoring method for the water pump house according to claim 6, wherein when the water pump house is monitored in multiple stages, the method further comprises the following steps:
acquiring a pressure signal, wherein the pressure signal is the pressure signal of a water outlet main pipe of a water pump;
converting the pressure signal to a second digital signal;
and controlling the electromagnetic valve and the water pump based on the water level state signal and the second digital signal.
8. The intelligent monitoring method for the water pump house according to claim 7, wherein the water level state signals comprise an ultra-low water level signal, a normal water level signal and an overflow water level signal.
9. The intelligent monitoring method for the water pump house according to claim 8, wherein when the water level state signal is an ultra-low water level state signal or a low water level state signal, the generated first instruction signal is a valve opening signal, and the electromagnetic valve is opened; the generated second instruction signal is a water pump starting signal, and after the electromagnetic valve is opened, the water pump is started again;
when the water level state signal is a normal water level state signal or an overflow water level state signal, generating a first instruction signal which is a valve closing signal, and closing the electromagnetic valve signal after the water pump is disconnected; and the generated second instruction signal is a water pump disconnection signal, and the water pump is disconnected.
10. The intelligent monitoring method for the water pump house according to claim 8, characterized in that when the multi-stage monitoring is performed, and the water level state signal is a normal water level state signal, and an overpressure signal exists, the water pump is controlled to be turned off; and when the water level state signal is an overflow water level state signal, closing the valve of the electromagnetic valve.
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Application publication date: 20221206 |