Intelligent industrial circulating water descaling device control system and method

Abstract

The present application relates to a kind of intelligent industrial circulating water descaling equipment control method, the data acquisition and analysis module of industrial controller is responsible for collecting each sensor detection point data and each working component action state data, and send to dispatch module regularly, dispatch module sends these data to touch screen display when reading request is sent to touch screen, simultaneously, dispatch module will analyze the key data therein, and accordingly send emergency intervention command to pulse electric field adjustment module, blowdown control module, prompting corresponding module to take measures to adjust.The present application starts from the safety protection of equipment operation, the action flow of each executing element when equipment is normally working, the collection, output, display of equipment operating parameter and other relevant angles, realizes the automatic control of circulating water descaling, improves the descaling efficiency, saves manpower and material resources.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial water treatment, in particular to an intelligent industrial circulating water descaling equipment control system and method. BACKGROUND

[0002] At present, a large amount of cooling water or production water is needed in the production and operation process of metallurgy, chemical industry, manufacturing and other industries. In order to save costs, such water is often recycled, which is usually referred to as industrial circulating water. The water source of industrial circulating water is generally taken from natural water areas, and the water hardness is high, which causes scaling in the supporting delivery pipeline, pump, valve and other equipment and boiler production equipment. Severe scaling can cause waste of a large amount of primary energy of related equipment, and even cause serious consequences such as boiler bulging and pipe explosion. In order to effectively descale industrial circulating water, the traditional method is to add water quality stabilizers, but the added chemical agents not only have high cost, but also can cause secondary pollution with waste water discharge. Studies have shown that by applying a low-voltage pulse electric field to industrial circulating water, the scale-forming substances in the water are directly affected by the low-voltage electric field, and loose needle-shaped aragonite is formed, which is precipitated at the bottom of the processor and is periodically discharged. These precipitates are equivalent to reducing the calcium and magnesium ion content in the water, thereby effectively reducing the water hardness.

[0003] Based on the above principle, the present application designs an industrial circulating water descaling equipment control system and method. From the aspects of equipment operation safety protection, the action flow of each executing element when the equipment is normally working, the collection, output and display of equipment operation parameters, etc., the automatic control of circulating water descaling is realized, the descaling efficiency is improved, and manpower and material resources are saved. SUMMARY

[0004] The present application aims to overcome the above-mentioned deficiencies, and provides an intelligent industrial circulating water descaling equipment control system and method. From the aspects of equipment operation safety protection, the action flow of each executing element when the equipment is normally working, the collection, output and display of equipment operation parameters, etc., the automatic control of circulating water descaling is realized, the descaling efficiency is improved, and manpower and material resources are saved. It is suitable for hotel central air conditioning cooling circulating water treatment system, steel cable washing water system, chemical circulating water system and other industrial water treatment systems, and good application effects have been achieved.

[0005] The purpose of the present application is achieved as follows:

[0006] The application discloses an intelligent industrial circulating water descaling device control system, which comprises a descaling device and an industrial controller, wherein the descaling device is connected to a circulating water main system in a bypass mode, the descaling device comprises a descaling pulse generator, a descaling barrel, a cyclone barrel and a descaling pool, the circulating water main system is connected to the descaling barrel through a circulating water inlet pipeline, a 1# pressure sensor is arranged on the circulating water main system, a 2# pressure sensor is arranged in the descaling barrel, a water inlet pump and a water inlet valve are arranged on the circulating water inlet pipeline, the descaling barrel is internally provided with a pulse descaling device, a descaling mechanism is arranged on the barrel wall of the descaling barrel, a pulse electric field generated by the descaling pulse generator is applied to the pulse descaling device in the descaling barrel, a water outlet of the descaling barrel is connected to the cyclone barrel, the cyclone barrel is connected to the circulating water main system through a circulating water outlet pipeline, a water outlet valve and an electric conductivity sensor are arranged on the circulating water outlet pipeline, a 1# blowdown valve is arranged at the bottom of the descaling barrel, and a 2# blowdown valve is arranged at the bottom of the cyclone barrel.

[0007] The industrial controller is connected to an industrial touch screen through an RS232 serial port, the industrial controller exchanges information with a multi-channel I / O expander and a frequency converter through a 485 expander, the multi-channel I / O expander is used for collecting field data of valves, power supplies, sensors and a descaling mechanism of the descaling device, and the frequency converter is connected to the water inlet pump.

[0008] The software part of the industrial controller is divided into five modules according to functions, including a scheduling module, a man-machine interaction analysis module, a blowdown control module, a pulse electric field adjustment module and a data collection and analysis module.

[0009] Preferably, the multi-channel I / O expander realizes control on the valves, power supplies and driving elements of the descaling mechanism through digital output ports of the multi-channel I / O expander; the digital input interface of the multi-channel I / O expander is responsible for collecting and sending, to the industrial controller, on-off states of the driving elements for the industrial controller to analyze and judge action conditions of relevant working parts of the descaling device; the analog input interface of the multi-channel I / O expander is connected to some sensors of the descaling device which adopt analog quantity as an interface, so as to collect field data and send the field data to the industrial controller.

[0010] Preferably, the 1# pressure sensor, the 2# pressure sensor and the electric conductivity sensor form a sensor module, and the sensor module assists the industrial controller to collect water pressure and water quality parameters.

[0011] Preferably, the industrial touch screen is used for displaying state information and running parameter information of each working part in the descaling process, and is used for setting running parameters of each working part, so as to transmit the set running parameters to the industrial controller to control information.

[0012] Preferably, the industrial controller can also interact with the sensors of the 485 interface through the 485 expander, and the sensors of the 485 interface are accessed from the slave interface of the 485 expander, and the data information is collected directly by the industrial controller.

[0013] A kind of intelligent industrial circulating water descaling equipment control method, using above-mentioned equipment control system, comprising the following steps:

[0014] Data acquisition and analysis module is responsible for collecting each sensor detection point data and each working component action state data, and sends to dispatching module in time, dispatching module sends these data to touch screen display when reading request is sent to touch screen, simultaneously, dispatching module will analyze key data therein, and accordingly sends emergency intervention command to pulse electric field adjusting module, blowdown control module, to promote corresponding module to take measures to adjust.

[0015] Preferably, the key data analyzed by the dispatching module includes current conductivity value, pulse frequency, current size and user settings, blowdown valve is not closed to the end at the end of blowdown period, and water pressure of circulating water main system is insufficient during descaling equipment operation.

[0016] Preferably, in addition to realizing message forwarding between modules, the dispatching module also combines the timing information of the system timer, and generates a timing time notification message according to the device timing process parameters, and sends it to the corresponding module for analysis and execution.

[0017] Preferably, the pulse electric field adjusting module receives the pulse adjustment message sent by the dispatching module, and adjusts the input signal of the high-power pulse generating unit according to the message parameters to realize the function of adjusting the pulse electric field parameters of the descaling device.

[0018] Preferably, the blowdown control module waits for the open and close messages of the blowdown valve from the dispatching module, and the ascending, descending and stopping messages of the descaling mechanism, which will trigger the blowdown control module to organize the corresponding digital output unit control command to control the digital output unit to drive the actuator to act.

[0019] The beneficial effects of the present application are:

[0020] The descaling equipment is connected to the user's circulating water main system in bypass form, ensuring that the equipment cannot affect the normal operation of the user's main system under any circumstances.

[0021] Equipped with an industrial touch screen (human-computer interaction interface), the user can realize manual control and automatic control of the descaling equipment through the human-computer interaction interface, and the switching between the two control modes should be convenient and flexible, and the control system should also provide a running parameter setting interface, through which the user can set and adjust the necessary parameters during equipment operation.

[0022] In the automatic operation state, the descaling device should be able to sense the water condition change of the user circulating water main system, and should be able to automatically stop during the circulating water main system water shortage or stop operation, and should be able to automatically take corresponding operation mode according to whether the user pre-set automatic operation parameter during the normal operation of the main system;

[0023] In the automatic operation state, the descaling device should be able to execute the related action according to the user set related action parameter, and be able to dynamically adjust the scaling device current, pulse frequency and other parameters according to the conductivity detection value;

[0024] In the manual operation state, the working current of the scaling device part is still controlled by the circulating water main system pressure, and all other working parts are controlled by the user according to the actual situation.

[0025] In summary, from the aspects of equipment operation safety protection, action flow of each execution element during normal operation of the equipment, collection, output and display of equipment operation parameters, the automatic control of the circulating water descaling is realized, and the descaling efficiency is improved, and the manpower and material resources are saved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 It is the overall structure diagram of the descaling device of the intelligent industrial circulating water descaling device control system.

[0027] Fig. 2 It is the component structure schematic diagram of the industrial controller hardware part.

[0028] Fig. 3 It is the function module diagram of the industrial controller software part. DETAILED DESCRIPTION

[0029] Reference Figs. 1-3 The application relates to an intelligent industrial circulating water descaling device control system, which comprises a descaling device and an industrial controller. The descaling device is connected to a circulating water main system in a bypass mode. The descaling device comprises a scaling pulse generator, a scaling barrel, a cyclone barrel and a scaling pool. The circulating water main system sends circulating water into the scaling barrel through a circulating water inlet pipeline. A water inlet pump and a water inlet valve are arranged on the circulating water inlet pipeline. The scaling barrel is internally provided with a scaling pulse generator. A scaling mechanism is arranged on the barrel wall of the scaling barrel. The scaling pulse generator generates a pulse electric field which is applied to the scaling pulse generator in the scaling barrel. The pulse electric field breaks the H-O-H bond between two hydrogen atoms and an oxygen atom in a water molecule, reduces the solubility of calcium and magnesium ions in water, and effectively reduces the calcium and magnesium ion content in water, thereby effectively reducing the water hardness.

[0030] The water outlet of the descaling barrel is connected with a cyclone barrel, the water outlet of the cyclone barrel is connected with a circulating water main system through a circulating water outlet pipeline, and a water outlet valve and an electric conductivity sensor are arranged on the circulating water outlet pipeline.

[0031] The bottom blowdown outlet of the descaling barrel and the bottom blowdown outlet of the cyclone barrel are connected with a scale collection tank, a first blowdown valve is arranged on the pipeline between the descaling barrel and the scale collection tank, and a second blowdown valve is arranged on the pipeline between the cyclone barrel and the scale collection tank. The descaling mechanism is driven to lift by a driving motor, and the liftable descaling mechanism, the first blowdown valve and the second blowdown valve constitute a blowdown mechanism. An industrial controller controls the blowdown mechanism to periodically discharge the accumulated dirt, carbonates and the like in the descaling barrel and the cyclone barrel into the scale collection tank.

[0032] A filter screen is arranged at the center of the cyclone barrel, the water inlet and the blowdown outlet of the cyclone barrel are arranged on one side of the filter screen, and the water outlet of the cyclone barrel is arranged on the other side of the filter screen.

[0033] A first pressure sensor is arranged on the circulating water main system, and a second pressure sensor is arranged in the descaling barrel.

[0034] The first pressure sensor, the second pressure sensor and the electric conductivity sensor constitute a sensor module, and the sensor module assists the industrial controller to collect water pressure and water quality parameters to provide a basis for decision-making of the control system.

[0035] The industrial controller is connected with an industrial touch screen through an rs232 serial port. The industrial touch screen has two functions. One is to display the state information and operating parameter information of each working component during the descaling process, and the other is to cooperate with the industrial controller to set the operating parameters of each working component and transmit the set operating parameters to the industrial controller to control information.

[0036] The user can realize manual control and automatic control of the descaling equipment through the industrial touch screen (human-computer interaction interface), and the switching between the two control modes should be convenient and flexible.

[0037] In the automatic operation state, the descaling equipment should be able to sense the water condition change of the circulating water main system. During the water shortage or stop of the circulating water main system, the descaling equipment automatically stops through the water inlet pump control. During the normal operation of the circulating water main system, the descaling equipment can independently adopt the corresponding operation mode according to whether the automatic operation parameter is set by the user in advance.

[0038] The industrial touch screen is provided with an operating parameter setting interface, through which the user can set and adjust the necessary parameters in the equipment operation.

[0039] The main parameters that can be adjusted by the user during the operation of the descaling equipment are shown in Table 1:

[0040] Table one, the main parameters of the intelligent industrial circulating water descaling equipment can be adjusted

[0041]

[0042] The industrial controller as 485 master device interacts information with multi-channel I / O expander, frequency converter and other 485 slave devices through 485 expander, the multi-channel I / O expander realizes the control of the driving elements (driving motor) of the valves, power supplies and scraping mechanism of the relays and circuit breakers through its digital output port; the digital input interface of the multi-channel I / O expander is responsible for collecting and sending the attraction and disconnection state of the driving elements to the industrial controller for the industrial controller to analyze and judge the action of the related working parts of the descaling equipment; the analog input interface of the multi-channel I / O expander is connected with some sensors of the descaling equipment which use analog quantity as interface to collect field data and send to the industrial controller.

[0043] In the hardware construction process, some sensors with 485 interface are also selected, which are connected to the slave interface of the 485 expander, and the data information is collected by the industrial controller directly.

[0044] The software part of the industrial controller is divided into five modules according to the function, including scheduling module, man-machine interaction analysis module, blowdown control module, pulse electric field adjustment module and data acquisition and analysis module.

[0045] The scheduling module has a message queue and a message code associated task processing table, the scheduling module receives the messages sent by other modules through its message queue (the invention refers to sending messages to the scheduling module as master task), the message is composed of message code and message parameters. The scheduling module determines which module should process the message according to the message sent by the master task in the message code processing table, once determined, the message is forwarded to the target module, and the target module completes the corresponding function according to the message code and message parameters. In addition to realizing the message forwarding between modules, the scheduling module also generates a timing time notification message according to the device timing process parameters shown in table one in combination with the timing information of the system timer and sends it to the corresponding module for analysis and execution.

[0046] The man-machine interaction analysis module is responsible for analyzing the read and write function codes from the industrial touch screen, and the read and write function codes of the touch screen adopt modbus-RTU format. If the module analyzes the read function code, the collected field sensor data and the current running state data of each working part of the equipment are transmitted to the touch screen, the touch screen transmits the data sent by the controller through the corresponding channel created by the design interface, and receives these data through the variables associated with each channel created in the real-time database.

[0047] The touch screen write function is mainly generated from the control requirement of the user. When the user clicks the function button provided by the touch screen, the button event will call the pre-written touch screen script program. The touch screen script program determines whether to issue the write function to the controller according to the relevant parameters obtained from the controller by the read channel. If the controller receives the write function code information, it will be submitted to the man-machine interaction analysis module to analyze the function parameters (the present application adopts 0x10 function code, and the function parameters are in the 7th and 8th units of the modbus-rtu write information) therein. The man-machine interaction analysis module converts the analyzed function parameters into a message code, and further forwards the message parameter to the dispatching module for processing.

[0048] The blowdown control module waits for the blowdown valve opening and closing, the scale removal mechanism lifting and lowering, and the stop messages from the dispatching module. These messages will trigger the blowdown control module to organize the corresponding digital output unit control commands, control the digital output unit to drive the actuator to move, and realize the above functions. The blowdown control module also waits for the second timing to message organized by the dispatching module according to the signal from the system timer. According to the second timing to message and the parameters of the scale removal barrel and the cyclone barrel blowdown timing time and scale removal time given in Table 1, the blowdown control module autonomously realizes the control functions after the timing time arrives.

[0049] The pulse electric field adjustment module receives the pulse adjustment message sent by the dispatching module, and adjusts the input signal of the high-power pulse generation unit according to the message parameter, to realize the function of adjusting the pulse electric field parameter of the descaling device. In addition to the above functions, the pulse electric field adjustment module also interacts with the special water treatment power supply (provided by a third party) through the modbus-rtu protocol to realize the output total current adjustment function of the power supply.

[0050] The data acquisition and analysis module is responsible for collecting data of each sensor detection point and action state data of each working part, and sending the data to the dispatching module at regular intervals. The dispatching module sends these data to the touch screen display when the touch screen sends a read request. On the other hand, the dispatching module will analyze the key data such as the current conductivity value, the pulse frequency, the current size, and the user settings, and send emergency intervention commands to the corresponding modules according to the information such as the end of the blowdown period but the blowdown valve not closing to the right position, the water pressure of the circulating water main system being insufficient during the operation of the descaling device, etc., to prompt the corresponding modules to take measures for adjustment, even alarm, shutdown, etc.

[0051] In addition to the above embodiments, the present application also includes other implementation manners. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the claims of the present application.

Claims

1. An intelligent industrial circulating water scale removal device control system, characterized by: The descaling device is connected to the circulating water main system in bypass form, and the descaling device comprises a scale forming pulse generator, a scale forming barrel, a cyclone barrel and a scale collecting tank, the circulating water main system sends circulating water into the scale forming barrel through a circulating water inlet pipeline, a 1# pressure sensor is arranged on the circulating water main system, a 2# pressure sensor is arranged in the scale forming barrel, a water inlet pump and a water inlet valve are arranged on the circulating water inlet pipeline, the scale forming barrel is internally provided with a pulse scale forming device, a scale removing mechanism is arranged on the barrel wall of the scale forming barrel, a pulse electric field generated by the scale forming pulse generator is applied to the pulse scale forming device in the scale forming barrel, a water outlet of the scale forming barrel is connected to the cyclone barrel, the cyclone barrel is connected to the circulating water main system through a circulating water outlet pipeline, a water outlet valve and an electric conductivity sensor are arranged on the circulating water outlet pipeline, a 1# blowdown valve is arranged at the bottom of the scale forming barrel, and a 2# blowdown valve is arranged at the bottom of the cyclone barrel. The industrial controller is connected to an industrial touch screen through an rs232 serial port, the industrial controller interacts information with a multi-channel I / O expander and a frequency converter through a 485 expander, the multi-channel I / O expander is used for collecting field data of valves, power supplies, sensors and scale removing mechanisms of the descaling device, and the frequency converter is connected to the water inlet pump. The software part of the industrial controller is divided into five modules according to functions, including a scheduling module, a man-machine interaction analysis module, a blowdown control module, a pulse electric field adjustment module and a data acquisition and analysis module.

2. The intelligent industrial circulating water scale removal device control system of claim 1, wherein: The multi-channel I / O expander realizes control of valves, power supplies and scale removing mechanism driving elements through digital output ports of the multi-channel I / O expander. The digital input interface of the multi-channel I / O expander is responsible for collecting and sending the on and off states of the driving elements to the industrial controller for the industrial controller to analyze and judge the action conditions of the relevant working parts of the descaling device, and the analog input interface of the multi-channel I / O expander is connected to some sensors of the descaling device which use analog quantity as the interface to collect field data and send the field data to the industrial controller.

3. The control system of claim 1, wherein: The 1# pressure sensor, the 2# pressure sensor and the electric conductivity sensor form a sensor module, and the sensor module assists the industrial controller to collect water pressure and water quality parameters.

4. The control system of claim 1, wherein: The industrial touch screen is used for displaying state information and operating parameter information of each working part in the descaling process, and is also used for setting operating parameters of each working part and transmitting control information of the set operating parameters to the industrial controller.

5. The control system of claim 1, wherein: The industrial controller can also interact information with sensors of a 485 interface through the 485 expander, the sensors of the 485 interface are connected to slave interfaces of the 485 expander, and data information is directly collected by the industrial controller.

6. A control method of an intelligent industrial circulating water descaling device, characterized in that, The device control system of any one of claims 1-5, Comprising the following steps: The data acquisition and analysis module of the industrial controller is responsible for collecting data of each sensor detection point and action state data of each working part, and sending the data to the scheduling module at regular time, the scheduling module sends the data to the touch screen for display when the touch screen sends a reading request, meanwhile, the scheduling module analyzes key data in the data, and sends emergency intervention commands to the pulse electric field adjustment module and the blowdown control module according to the key data, so as to promote the corresponding modules to take measures for adjustment.

7. The control method of the intelligent industrial circulating water scale removal device according to claim 6, characterized in that: The key data parsed by the scheduling module includes current conductivity value, pulse frequency, current size, and user settings, and the end of the blowdown period but the blowdown valve is not closed to the point, the circulating water main system pressure is insufficient during the operation of the descaling device.

8. The control method of the intelligent industrial circulating water scale removal device according to claim 6, characterized in that: In addition to realizing the message forwarding between modules, the scheduling module also combines the timing information of the system timer, and generates a timing time notification message according to the device timing process parameters and sends it to the corresponding module for parsing and execution.

9. The control method of the intelligent industrial circulating water scale removal device according to claim 6, characterized in that: The pulse electric field adjustment module receives the pulse adjustment message sent by the scheduling module, and adjusts the input signal of the front stage of the high-power pulse generation unit according to the message parameters, to realize the function of adjusting the pulse electric field parameters of the scale former.

10. The control method of the intelligent industrial circulating water scale removal device according to claim 6, characterized in that: The blowdown control module waits for the open and close messages of the blowdown valve, the lifting and lowering messages of the descaling mechanism, and the stop message from the scheduling module. These messages will trigger the blowdown control module to organize the corresponding digital output unit control command to control the digital output unit to drive the actuator to act.

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