CN112965417A - Mobile heat supply monitoring and metering system and method - Google Patents
Mobile heat supply monitoring and metering system and method Download PDFInfo
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- CN112965417A CN112965417A CN202110171705.XA CN202110171705A CN112965417A CN 112965417 A CN112965417 A CN 112965417A CN 202110171705 A CN202110171705 A CN 202110171705A CN 112965417 A CN112965417 A CN 112965417A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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Abstract
The invention discloses a mobile heat supply monitoring and metering system and a method, and the technical scheme is as follows: the system comprises an ARM microprocessor, and a power supply module, a working mode selection module, a human-computer interaction module, a three-way electric valve regulation module, a steam input regulation valve module, a communication module, a working state parameter acquisition module and a safety valve module which are connected with the ARM microprocessor; the detection of multipath temperature, pressure, flow, PH value and working state can be realized under the control of the ARM microprocessor, and corresponding parameters and states are recorded at the same time. The invention has the advantages that the detection of the multi-channel temperature, pressure, flow, PH value and system working state is realized, and the corresponding parameters and states are recorded; the detection parameters may be non-linearly modified.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a mobile heat supply monitoring and metering system and a method.
Background
The mobile heat supply means that various industrial waste heat and waste heat are converted and stored by the heat storage component of the recovery device, and then the heat storage device is transported to a heat energy user by a tractor, and heat is supplied to the user by the heat exchanger. The movable energy storage heat supply has obvious benefits, can realize waste heat recycling, changing hot garbage into resources and changing waste into valuables, provides emergency heat supply for regions uncovered by a centralized heat supply pipe network, and particularly provides special heat users such as enterprises and public institutions, stadiums, hotels, fitness and entertainment places and the like with more obvious advantages.
At present, a mobile heating system generally comprises a mobile heating vehicle, a heat storage box body, a hot water box body, a steam input pipeline, a water supply adjusting pipeline and the like, the heat storage and heat release processes are manually operated, safety monitoring is generally lacked, the heating load is difficult to measure, the water supply temperature change range is large, and the operation management is inconvenient. With the development and deep application of the mobile heat supply technology, the mobile heat supply system needs to be upgraded and modified.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a mobile heat supply monitoring and metering system and a method, which have the advantages of detecting the multipath temperature, pressure, flow, pH value and system working state and simultaneously recording corresponding parameters and states; the detection parameters may be non-linearly modified.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a mobile heat supply monitoring and metering system, which includes an ARM microprocessor, and a power module, a working mode selection module, a human-computer interaction module, a three-way electric valve adjustment module, a steam input adjustment valve module, a communication module, a working state parameter acquisition module, and a safety valve module, which are connected to the ARM microprocessor; the detection of multipath temperature, pressure, flow, PH value and working state can be realized under the control of the ARM microprocessor, and corresponding parameters and states are recorded at the same time.
As a further implementation, the operation mode selection module includes a switch that selects a heat storage mode or a heat release mode according to the system operation state.
As a further implementation manner, the three-way electric valve adjusting module comprises a three-way electric valve and a power driving circuit, the three-way electric valve is connected with the ARM microprocessor through the power driving circuit, and continuous current signals are output through the power driving circuit to control the relative opening degree of valves of a cold water inlet and a hot water inlet corresponding to the three-way electric valve.
As a further implementation manner, the steam input regulating valve module comprises a steam inlet regulating valve and a steam inlet, the steam inlet is arranged at one end of the steam inlet pipe, and the steam inlet regulating valve is arranged on the steam inlet pipe; and the steam inlet regulating valve is connected with the ARM microprocessor.
As a further implementation mode, the human-computer interaction module is used for displaying the working parameters and the processing results of the system according to a selected mode, and can set the detection parameters on line and carry out nonlinear correction; the touch screen and the working state indicating circuit are respectively connected with the ARM microprocessor.
As a further implementation manner, the working state parameter acquisition module comprises a sensing detection module and a conditioning circuit, and the sensing detection module is connected with the ARM microprocessor through the conditioning circuit;
the sensing detection module comprises a plurality of temperature sensors, a flow sensor, a pressure sensor and a PH sensor.
As a further implementation manner, the communication module includes a communication interface, the communication interface includes an RS232 interface or an RS485 interface, and an infrared interface, and the RS232 interface or the RS485 interface is used for connecting a vehicle-mounted communication system or an NB-IoT module to implement wireless communication; the infrared interface is used for communicating with the handheld device.
As a further implementation, the safety valve module includes a safety valve mounted on the thermal storage material tank.
In a second aspect, an embodiment of the present invention further provides a mobile heating monitoring metering method, where the system is used, including:
selecting one of a heat storage mode and a heat release mode according to the working state through a working mode selection module; in the heat storage process, the working state parameter acquisition module detects the state parameters in real time;
setting the starting position of the three-way electric valve according to the set water supply temperature and the detected cold water and hot water temperatures at the water inlet; the steam inlet regulating valve controls steam to enter through the steam inlet pipe and heat the phase change heat storage assembly;
when the temperature of the heat storage component exceeds a set temperature value or the heat storage time exceeds a set heat storage duration, closing the electric regulating valve on the steam inlet pipe, and finishing the heat storage process;
in the heat release process, automatic temperature regulation control and real-time system state detection are realized according to the set temperature and the detected temperature.
As a further implementation, the system adopts a binary control algorithm with return difference.
The beneficial effects of the above-mentioned embodiment of the present invention are as follows:
(1) one or more embodiments of the invention have the advantages of detecting the multi-path temperature, pressure, flow, PH value and system working state, and recording corresponding parameters and states; the detection parameters can be corrected in a non-linear way; the alarm has upper and lower limits of temperature, pressure, adjusting position and the like.
(2) One or more embodiments of the invention can read system status, metering data and historical data through the handheld mobile device, and can also transmit relevant data to a data processing center for storage and analysis by adopting NB-IoT technology.
(3) In the heat storage process, one or more embodiments of the invention detect the parameters such as temperature and pressure in the heat storage container in real time, and have the functions of abnormal state detection, alarm, emergency treatment and the like; in the heat release process, the functions of automatic temperature regulation control, flow monitoring, heat supply amount metering and the like are realized according to the set temperature and the detected temperature.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic block diagram of the present invention according to one or more embodiments.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The first embodiment is as follows:
the embodiment provides a mobile heat supply monitoring and metering system, which comprises an ARM microprocessor, and a power module, a working mode selection module IC13, a human-computer interaction module, a three-way electric valve regulation module, a steam input regulation valve module, a communication module, a working state parameter acquisition module and a safety valve module, which are connected with the ARM microprocessor through a bus, as shown in fig. 1.
In the present embodiment, the model of the ARM microprocessor is selected as STM32F103, and it is understood that in other embodiments, other models may be selected for the ARM microprocessor.
Further, the power supply module comprises a vehicle-mounted storage battery power supply conversion module IC11 and a mains supply power supply management module IC12, and the vehicle-mounted storage battery power supply conversion module IC11 is connected with the ARM microprocessor through the mains supply power supply management module IC 12; and continuous and reliable power supply is provided for the system through the power supply module.
The operating mode selection module IC13 includes a switch that selects one of two operating modes, a heat accumulation mode and a heat release mode, depending on the system operating conditions.
The man-machine interaction module comprises a touch screen IC15 and a working state indicating circuit IC14 which are respectively connected with the ARM microprocessor, and the working state indicating circuit IC14 comprises a buzzer and an LED indicating lamp and has the functions of abnormal sound and light alarm. The working state indicating circuit IC14 and the touch screen IC15 realize man-machine interaction, can display the working parameters and the processing results of the system according to a selected mode, and can set the detection parameters on line and carry out nonlinear correction.
Further, the three-way electric valve adjusting module comprises a three-way electric valve IC3 and a power driving circuit IC2, and the three-way electric valve IC3 has a limit position output signal. In this embodiment, the power driving circuit IC2 adopts a V/I conversion circuit, the three-way electric valve IC3 is connected to the ARM microprocessor through the power driving circuit IC2, and outputs a continuous current signal through the power driving circuit IC2 to control the relative opening degree of the cold water inlet valve and the hot water inlet valve corresponding to the three-way electric valve IC3, thereby adjusting the temperature of the water outlet.
Furthermore, the starting position of the three-way electric valve IC3 is set according to the set water supply temperature (namely the water outlet temperature) and the detected cold water and hot water temperature and pressure of the water inlet and the empirical value obtained by the test, so that the adjusting time can be shortened and the adjusting effect can be ensured. Furthermore, a 'two-position type control algorithm with return difference' is adopted, and the return difference value can be automatically adjusted, so that the three-way electric valve IC3 is prevented from being frequently adjusted.
The system is provided with a water pump, a water inlet of the water pump is connected with a tap water pipe on a heat supply site, an outlet of the water pump is divided into two paths, one path is connected with a heat exchange pipe, the other path is connected with a cold water inlet of a three-way valve and used for heat exchange circulation and water supply pressurization, and hot water after heat exchange circulation is connected into a hot water inlet of a three-way electric valve IC 3.
The steam input regulating valve module comprises a steam inlet regulating valve IC4 and a steam inlet IC5, the steam inlet IC5 is arranged at one end of a steam inlet pipe, the steam inlet pipe is provided with a steam inlet regulating valve IC4, and the steam inlet regulating valve IC4 is connected with the ARM microprocessor; steam enters through the steam inlet pipe and heats the phase change heat storage component, and when the temperature of the heat storage component exceeds a set temperature value or the heat storage time exceeds a set heat storage time, the system closes an electric regulating valve (a steam inlet regulating valve IC4) on the steam inlet pipe, and the heat storage process is finished.
Further, the communication module comprises a communication interface IC6 and an antenna IC7, the communication interface IC6 comprises an RS232 interface/RS 485 interface and an infrared interface, the communication module is connected with the vehicle-mounted communication system or the NB-IoT module through the RS232 interface or the RS485 interface to realize wireless communication, and the communication module can also communicate with the handheld device through the infrared interface to complete data transmission and improve the mobile heat supply operation management level.
The working state parameter acquisition module comprises a sensing detection module IC9 and a conditioning circuit IC8, wherein the sensing detection module IC9 is connected with the ARM microprocessor through the conditioning circuit IC 8. The sensing detection module IC9 comprises a common sensor, and if the sensor outputs a 4-20mA current signal, an I/V conversion circuit is required; if the sensor outputs a voltage signal, a filtering and amplitude conversion conditioning circuit is needed.
In this embodiment, the sensing module IC9 includes a plurality of temperature sensors, a flow sensor, a pressure sensor, and a PH sensor, where the temperature sensors are used to detect the temperature of the cold water inlet, the hot water inlet, the merged water outlet, the phase-change heat storage material tank and the temperature of the heat storage steam of the three-way valve.
The flow sensor is used for detecting the flow of the combined flow water outlet and the heat storage steam; the pressure sensor is used for detecting the pressure in the phase change heat storage material box body. The PH sensor is used for detecting the PH value of hot water in the movable heat supply box body, so that the heat exchange pipe is thoroughly cleaned after descaling maintenance, and the service life is prolonged.
Further, the safety valve module includes a safety valve IC10, the safety valve IC10 is mounted on the heat storage material tank; the safety valve IC10 is connected with the ARM microprocessor, and the state of the safety valve IC10 can be identified by the working state parameter acquisition module. In the processes of heat storage, transportation and heat release, if the pressure in the box body exceeds a set value, the pressure release valve is automatically opened, so that the safety and the reliability of the system are ensured.
The mobile heat supply monitoring and metering system of the embodiment can detect parameters such as steam temperature, steam flow, temperature and pressure in a heat storage container in real time in the heat storage process, and has the functions of abnormal state detection, alarming, emergency treatment and the like; when the temperature of the heat storage component exceeds a set temperature value or the heat storage time exceeds a set heat storage duration, the system closes the electric control valve on the steam inlet pipe, and the heat storage process is finished.
In the heat release process, the related calculation functions of automatic temperature regulation control, real-time system state detection and display, flow monitoring, heat supply metering, energy conservation and emission reduction (standard coal) and the like are realized according to the set temperature and the detected temperature.
In the embodiment, a mobile heat supply system is upgraded and reformed, and a system state detection circuit, a man-machine interaction module, a wireless communication module, a water supply temperature automatic adjustment module, a heat storage state detection and safety control module, a heat release process control and metering detection module and a water pump for heat exchange circulation and water supply pressurization are additionally arranged on a mobile heat supply vehicle besides a heat exchange box body, a pipeline and an adjustment control valve; the mobile heat supply monitoring and metering system and the mobile heat supply vehicle form an organic whole, and can work independently and also can run in a network; the system is ensured to operate safely, and powerful support is provided for improving the operation management level.
The embodiment can be applied to a mobile heating system and can be used in the field of heating metering control with heating regulation and metering requirements.
Example two:
the embodiment provides a mobile heating monitoring and metering method, which adopts the system described in the first embodiment,
selecting one of a heat storage mode and a heat release mode according to the working state through a working mode selection module; in the heat storage process, the working state parameter acquisition module detects parameters such as steam temperature, steam flow, temperature in the heat storage container, pressure and the like in real time.
Setting the initial position of the three-way electric valve according to the set water supply temperature (namely the water outlet temperature) and the detected cold water and hot water temperatures of the water inlet and the empirical value obtained by the test; the steam inlet regulating valve controls the steam to enter through the steam inlet pipe and heat the phase change heat storage assembly.
When the temperature of the heat storage component exceeds a set temperature value or the heat storage time exceeds a set heat storage duration, the system closes the electric control valve on the steam inlet pipe, and the heat storage process is finished.
In the heat release process, the related calculation functions of automatic temperature regulation control, real-time system state detection and display, flow monitoring, heat supply metering, energy conservation and emission reduction (standard coal) and the like are realized according to the set temperature and the detected temperature.
Furthermore, a 'two-position control algorithm with return difference' is adopted, and the return difference value can be automatically adjusted, so that the three-way electric valve is prevented from being frequently adjusted.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A mobile heat supply monitoring and metering system is characterized by comprising an ARM microprocessor, a power supply module, a working mode selection module, a man-machine interaction module, a three-way electric valve adjusting module, a steam input adjusting valve module, a communication module, a working state parameter acquisition module and a safety valve module, wherein the power supply module, the working mode selection module, the man-machine interaction module, the three-way electric valve adjusting module, the steam input adjusting valve module, the communication module, the working; the detection of multipath temperature, pressure, flow, PH value and working state can be realized under the control of the ARM microprocessor, and corresponding parameters and states are recorded at the same time.
2. A mobile heating monitoring and metering system as claimed in claim 1, wherein the operation mode selection module comprises a switch for selecting the heat accumulation mode or the heat release mode according to the operation state of the system.
3. The system of claim 1, wherein the three-way electric valve adjusting module comprises a three-way electric valve and a power driving circuit, the three-way electric valve is connected with the ARM microprocessor through the power driving circuit, and the power driving circuit outputs a continuous current signal to control the relative opening degree of the cold water inlet and the hot water inlet corresponding to the three-way electric valve.
4. A mobile heating monitoring and metering system as claimed in claim 1, wherein the steam input regulating valve module comprises a steam inlet regulating valve and a steam inlet, the steam inlet is arranged at one end of the steam inlet pipe, and the steam inlet regulating valve is arranged on the steam inlet pipe; and the steam inlet regulating valve is connected with the ARM microprocessor.
5. A mobile heat supply monitoring and metering system according to claim 1, wherein the human-computer interaction module is used for displaying system working parameters and processing results in a selected mode, and can set detection parameters on line and perform nonlinear correction; the touch screen and the working state indicating circuit are respectively connected with the ARM microprocessor.
6. The mobile heat supply monitoring and metering system of claim 1, wherein the working state parameter acquisition module comprises a sensing detection module and a conditioning circuit, and the sensing detection module is connected with the ARM microprocessor through the conditioning circuit;
the sensing detection module comprises a plurality of temperature sensors, a flow sensor, a pressure sensor and a PH sensor.
7. A mobile heating monitoring and metering system as claimed in claim 1, wherein the communication module comprises a communication interface, the communication interface comprises an RS232 interface or an RS485 interface, and an infrared interface, and the RS232 interface or the RS485 interface is used for connecting a vehicle-mounted communication system or an NB-IoT module to realize wireless communication; the infrared interface is used for communicating with the handheld device.
8. A mobile heating monitoring and metering system according to claim 1, wherein the safety valve module includes a safety valve mounted on the thermal storage material tank.
9. A mobile heating monitoring metering method, characterized in that the system according to any one of claims 1-8 is adopted, comprising:
selecting one of a heat storage mode and a heat release mode according to the working state through a working mode selection module; in the heat storage process, the working state parameter acquisition module detects the state parameters in real time;
setting the starting position of the three-way electric valve according to the set water supply temperature and the detected cold water and hot water temperatures at the water inlet; the steam inlet regulating valve controls steam to enter through the steam inlet pipe and heat the phase change heat storage assembly;
when the temperature of the heat storage component exceeds a set temperature value or the heat storage time exceeds a set heat storage duration, closing the electric regulating valve on the steam inlet pipe, and finishing the heat storage process;
in the heat release process, automatic temperature regulation control and real-time system state detection are realized according to the set temperature and the detected temperature.
10. A mobile heating monitoring and metering method as claimed in claim 9, wherein the system employs a binary control algorithm with backlash.
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| CN202110171705.XA CN112965417A (en) | 2021-02-08 | 2021-02-08 | Mobile heat supply monitoring and metering system and method |
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