CN110953648B - Heat supply balance system and heat supply method - Google Patents
Heat supply balance system and heat supply method Download PDFInfo
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- CN110953648B CN110953648B CN201911292317.6A CN201911292317A CN110953648B CN 110953648 B CN110953648 B CN 110953648B CN 201911292317 A CN201911292317 A CN 201911292317A CN 110953648 B CN110953648 B CN 110953648B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention provides a heat supply balance system and a heat supply balance method, which solve the technical problem of low heat supply control feedback efficiency caused by the fact that user experience cannot be effectively obtained in the existing heat supply balance. The system comprises: the situation acquisition node is used for responding to the link communication request and acquiring the current pressure and the current temperature of the peripheral node to form real-time data to be uploaded; the communication gateway is used for responding to a user request, establishing a collecting communication link with the situation collecting node, receiving the real-time data to form environment perception data and uploading the environment perception data; and the feedback response node is used for receiving the environment perception data and forming the medium flow characteristics in the frequency conversion pump control data balance determination area. The mobile terminal of the accompanying user is used as the communication gateway, so that the computing resources and the communication diversity resources of the mobile terminal are fully utilized, the feedback response node can fully utilize the cloud computing capability to establish the heat dissipation situation of the massive tip nodes, and the effective balance of the whole heat source adjustment and the local heat adjustment efficiency of the loop network is fully realized.
Description
Technical Field
The invention relates to the technical field of heating, in particular to a heat supply balance system and a heat supply balance method.
Background
In the prior art, a heating system includes a heating pipe network and heating users, the heating pipes are distributed in each room space of a building to form a loop network, the loop network is communicated with a heat dissipation terminal of the heating users, and the heat dissipation terminal forms a tip node where a heat medium exchanges heat and flows back in the loop network. It can be understood that the heat supply efficiency in the heat supply pipe network is usually positively correlated with the distance of the heat source, the terminal node medium pressure closer to the heat source is high, the heat dissipation efficiency is high, the indoor temperature can be frequently satisfied by more than 24 ℃, even the window heat dissipation is needed, the terminal node medium pressure farther from the heat source is high, the heat dissipation efficiency is low due to large flow, and the terminal node medium pressure is usually maintained below 18 ℃. If simply increase the heat supply load of heat source and the inverter pump in the return circuit network, can cause the stability that influences the return circuit network when fuel large-scale consumption, cause the heating effect poor regional interior heat dissipation efficiency can't increase the opposite nature and promote. How to improve the effective mobility of the medium in the loop network and timely and reliably obtain the user experience of the end node is the first technical problem of solving the heat supply balance.
Disclosure of Invention
In view of the above problems, embodiments of the present invention provide a heat supply balance system and a heat supply balance method, which solve the technical problem of low heat supply efficiency control feedback efficiency caused by the fact that user experience cannot be effectively obtained in the existing heat supply balance.
The heat supply balance system of the embodiment of the invention comprises:
the situation acquisition node is used for responding to the link communication request and acquiring the current pressure and the current temperature of the peripheral node to form real-time data to be uploaded;
the communication gateway is used for responding to a user request, establishing a collecting communication link with the situation collecting node, receiving the real-time data to form environment perception data and uploading the environment perception data;
and the feedback response node is used for receiving the environment perception data and forming the medium flow characteristics in the frequency conversion pump control data balance determination area.
The heat supply balance method of the embodiment of the invention adopts the heat supply balance system, and comprises the following steps:
responding to a communication request of a communication link, acquiring the current pressure and the current temperature of a tip node to form real-time data uploading;
responding to a user request, establishing a near field communication link with the current tip node, receiving the real-time data of the current tip node, combining the real-time data with the existing experience to form environment perception data, and uploading the environment perception data through a far field communication link;
and receiving the environment perception data to form variable frequency pump control data in a determined area of the loop network to control the flow change of the medium in the determined area.
The heat supply balance system and the heat supply balance method form a set of heat supply balance control process based on real-time feedback of the end nodes of the loop network. The mobile terminal of the accompanying user is used as a communication gateway, so that the computing resources and the communication diversity resources of the mobile terminal are fully utilized, the software and hardware cost of the system in large-range deployment is greatly reduced, the situation acquisition node can only perform function cutting aiming at the measurement precision, the installation difficulty and the communication adaptability, the cost limiting factor of indoor redundant configuration is avoided, the feedback response node can fully utilize the cloud computing capability to establish a complex operation model of the heat dissipation situation of the mass tip nodes and the dynamic change of the heat of the loop network, and the effective balance of the whole heat source adjustment and the local heat adjustment efficiency of the loop network is fully realized. A centralized heating balance system for comprehensively balancing a heating strategy by using the granularity advantage of feedback information of situation acquisition nodes is formed, the energy consumption of a heat source is effectively reduced, and the local heating efficiency is improved.
Drawings
Fig. 1 is a schematic diagram illustrating an architecture of a heat balance system according to an embodiment of the present invention.
FIG. 2 is a schematic flow chart of a heat balance method according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a heat balance system according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a situation acquisition node of a heat balance system according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a situation acquisition node of a heat balance system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described below with reference to the accompanying drawings and the detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The basic architecture of a heating balance system according to an embodiment of the present invention is shown in fig. 1. In fig. 1, the present embodiment includes:
and the situation acquisition node 100 is used for responding to the link communication request, acquiring the current pressure and the current temperature of the peripheral node, and uploading formed real-time data.
Those skilled in the art will appreciate that the tip node may be a radiator stack within the user's room, and that the real-time pressure and real-time temperature collected are the approximate locations in the radiator stack at the time of collection where the media flows to the end point and forms the beginning of the backflow. The real-time pressure is a medium pressure value formed by the loop network at the end node, and the real-time temperature is a medium temperature value formed by the loop network at the end node. The pressure value and the temperature value need to be acquired in a synchronous acquisition mode, the pressure value and the temperature value at the current moment need to be corresponding, the higher precision is ensured, and meanwhile, the power consumption is reduced, and the complexity and the high cost of an acquisition circuit are avoided. The response communication request is formed in accordance with the acquisition communication link connection excitation signal.
And the communication gateway 200 is used for responding to the user request, establishing a collecting communication link with the situation collecting node, receiving the real-time data to form environment perception data and uploading the environment perception data.
Those skilled in the art can understand that the communication gateway can adopt a mobile terminal, the mobile terminal forms a necessary software and hardware integrated environment, a near field communication link is formed by utilizing one integrated communication component and an adaptive communication component of the situation acquisition node, a far field communication link is formed by utilizing the other integrated communication component and an upper node, and meanwhile, the pressure value and the temperature value are combined with the identification data of the communication gateway and/or the situation acquisition node to form environment perception data reflecting the shape and the geographic position of a living room.
And the feedback response node 300 is used for receiving the environment perception data and forming the medium flow characteristics in the frequency conversion pump control data balance determination area.
The feedback response node may be a remote computer-specific processing device with respect to the communication gateway, the computer-specific processing device forming a feedback process of data aggregation-data processing-forming control data using a far-field communication link. The balancing is based on a predetermined quantitative value or a predetermined trend value that promotes or attenuates a media flow characteristic, including but not limited to pressure or temperature.
The heat supply balance system of the embodiment of the invention forms a set of heat supply balance control process based on real-time feedback of the end nodes of the loop network. The mobile terminal of the accompanying user is used as a communication gateway, so that the computing resources and the communication diversity resources of the mobile terminal are fully utilized, the software and hardware cost of the system in large-range deployment is greatly reduced, the situation acquisition node can only perform function cutting aiming at the measurement precision, the installation difficulty and the communication adaptability, the cost limiting factor of indoor redundant configuration is avoided, the feedback response node can fully utilize the cloud computing capability to establish a complex operation model of the heat dissipation situation of the mass tip nodes and the dynamic change of the heat of the loop network, and the effective balance of the whole heat source adjustment and the local heat adjustment efficiency of the loop network is fully realized. A centralized heating balance system for comprehensively balancing a heating strategy by using the granularity advantage of feedback information of situation acquisition nodes is formed, the energy consumption of a heat source is effectively reduced, and the local heating efficiency is improved.
As shown in fig. 1, in an embodiment of the present invention, on the basis of the foregoing embodiment, a situation acquisition node 100 includes:
and the near field adapting device 110 is used for responding to the activation frequency signal to acquire a working power signal and near field link adaptation data, establishing a near field link, activating a power supply to supply power or cut off power to the signal processing circuit, and transmitting uplink data.
Those skilled in the art can understand that the near Field adaptation device may adopt a hardware architecture under the existing internet of things technology system, for example, an nfc (near Field communication) tag, and the component parameters may receive a power signal with a voltage of 2-3V and a power of 2W, which is beneficial for adapting to the near Field activation device of the mobile terminal. The near field communication device has the functions of establishing a basic near field communication link, converting magnetoelectric energy and executing preset data processing logic, can form a near field link according to the near field activation device, outputs activation signals to peripheral circuits, and completes low-power consumption and low-frequency data processing, formatted data packaging and the like.
And the power supply device 120 is used for responding to the activation signal to supply power to the signal processing circuit, powering off the signal processing circuit according to the activation signal, and acquiring induced voltage from the high-frequency magnetic field for charging.
The power supply device comprises a rechargeable battery, a power supply enabling circuit and a non-contact charging circuit, wherein the rechargeable battery maintains the working voltage of the signal processing circuit, the power supply enabling circuit controls a loop of the working voltage according to the activation signal, and the non-contact charging circuit and the rechargeable battery form a loop which obtains an electric power signal through electromagnetic conversion for charging. The power supply device only provides working electric quantity for the signal processing circuit and the sensor.
And the node encoder 130 is configured to receive the analog signal of the situation sensor, perform analog-to-digital conversion on the analog signal to form measurement data, encode the measurement data and the node identification data to form real-time data, and transmit the real-time data to the near field link.
Those skilled in the art can understand that the analog-to-digital conversion integrated circuit with multiple inputs and one output can package the input analog signal after completing analog-to-digital conversion to form a data packet with a determined format, and the additional identification data corresponding to the end node can be packaged together to form environment sensing data for identifying the heating situation in the environment of the current position through necessary secondary data packaging.
And the situation sensor 140 is used for forming a measurement signal of the current temperature and pressure of the tip node according to the quantized physical deformation.
The heat supply balance system of the embodiment of the invention forms an effective combination of the independent heat supply situation signal acquisition process formed by each end node and the mobile terminal, and forms the active data acquisition of the end nodes by utilizing the subjective feeling of the user, so that the data effectiveness and the real-time performance are stronger. The situation awareness of all peripheral nodes in the heating loop network is separated from a completely deployed data acquisition framework, the construction cost of the data network in the heating loop network is overcome, the physical quantization characteristics of a room are bound while the user body feeling experience is directly reflected by using the specific dimensional characteristics of the user as the situation temperature situation awareness, and the basic characteristic data of the room characteristic and the heating load analysis of the heating peripheral nodes are formed. As shown in fig. 1, in an embodiment of the present invention, on the basis of the above embodiment, a communication gateway 200 includes:
and the near field link activation device 210 is used for forming a continuous activation frequency signal for activating the adjacent situation acquisition node as required to form a power signal, and establishing a near field link in cooperation with the near field adaptation device.
According to the requirement, a near Field communication module integrated on the mobile terminal, such as an NFC (near Field communication) card reader, is started according to input of a user on an application control interface deployed on the mobile terminal, and component parameters can provide a power signal with the voltage of 2-3V and the power of 2W. The near field adapter device is matched with the near field communication module to transmit power signals to form a near field link, and link control between the near field communication module and the near field adapter device is formed at the same time. The establishment and the removal of the near field link are completed by the near field link activation device as required.
And the identification data fusion device 220 is configured to combine the terminal identification data in the mobile terminal or the node identification data of the situation acquisition node with the timestamp data to form an acquisition characteristic of real-time data in the process of receiving the upload data.
The combination of the terminal identification data and the node identification data determines that a user is located at a tip node and deploys an application on a corresponding mobile terminal, the combination of the terminal identification data and the node identification data determines the desktop time index of the temperature and the pressure of the current tip node, and the combination of the terminal identification data and the node identification data can effectively meet the description of the acquired signal situation.
And the environment data fusion device 230 is used for forming environment perception data by combining the quantitative description of the user on the space where the tip node is located and the collection characteristics in the process of receiving the uploaded data.
The space where the end node is located has an objective influence on medium circulation and heat dissipation, and quantitative data of a user on the room space are obtained through input on an application quantitative interface deployed on the mobile terminal. The collection characteristics and the real-time data are combined to form timely collection of the heat supply physical situation of the peripheral node triggered by the subjective feeling of the user in the room space.
And the far-field link interaction device 240 is used for establishing a far-field link with the feedback response node to upload environment perception data as required, disconnecting the far-field link after obtaining data verification confirmation of the feedback response node, and disconnecting the near-field link after sending the data verification confirmation to the situation acquisition node.
And if necessary, starting a far-field communication module integrated on the mobile terminal, such as a WiFi communication module or a wireless public network communication module, and forming a far-field link with the router or the base station according to the application process deployed by the user on the mobile terminal. And obtaining the downlink data verification confirmation and forwarding the data verification confirmation to form data forwarding and link control by taking the mobile terminal as a communication gateway.
The heat supply balance system of the embodiment of the invention simplifies the hardware configuration of the system through the mobile terminal commonly owned by the user and ensures a uniform data processing process by using application deployment. The combination of real-time data and user quantitative data effectively and objectively reflects the specific characteristics of energy consumption space of numerous peripheral nodes, so that the data acquisition of the peripheral nodes covers the complete heating and radiating situation of room space, an efficient and economical data acquisition mode is provided for eliminating loop network faults and determining local loop energy consumption, and the technical difficulty that user-side heating distribution data cannot be reliably obtained under the existing hardware architecture condition is overcome.
As shown in fig. 1, in an embodiment of the present invention, on the basis of the above embodiment, the feedback response node 300 includes:
and the data front end collecting device 310 is used for asynchronously receiving the environment perception data uploaded by the situation acquisition nodes and forming situation distribution data in a time domain according to the acquisition characteristics.
The asynchronous receiving mode adopts a far-field link establishment request of a passive response mobile terminal, and the asynchronous receiving mode comprises a mode of combining parallel response and response queue caching to provide concurrent far-field link support of a plurality of mobile terminals. Meanwhile, a far-field link is formed with the mobile terminal to acquire the uploaded data and verify the validity of the data, and then the data is downloaded for verification and confirmation.
And the situation analyzing and modeling device 320 is used for forming time domain and frequency domain conversion according to the situation distribution data to obtain situation trend characteristics in a frequency domain.
And after time domain and frequency domain conversion, pressure situation trend characteristics and temperature situation trend characteristics in a determined area range are formed in a frequency domain, and then correlation trend characteristics of the two situation trend characteristics are formed, so that the substantial change information of the pressure and the temperature can be obtained from the frequency domain.
And the control strategy response device 330 is used for forming a balanced trend balance data stream according to the situation trend characteristics.
And forming a prediction curve for determining the heating situation in the area by utilizing the acquired pressure and temperature change substantial information in the frequency domain, and forming corresponding and balanced frequency domain data aiming at the prediction curve so as to form a data stream in the time domain.
And the control data synchronizer 340 is used for forming a control data stream of the variable frequency pump in the corresponding area according to the trend balance data stream and balancing the heating situation in the corresponding area.
And mapping the trend balance data stream to the control rate parameters of the variable frequency pumps in the corresponding areas to form PWM modulation control data, forming control data streams of the corresponding variable frequency pumps, and improving the corresponding regulation of the medium heat in medium heat supply pipelines and return pipelines in the corresponding areas.
According to the heat supply balance system, the time domain distribution and the frequency domain distribution of the asynchronous environment sensing data in the determined area are established to determine the change essential information and the heat supply trend of the pressure and the temperature in the determined area, and corresponding offsetting trend balance data flow control variable frequency pumps are formed to improve the heat supply and heat dissipation efficiency of the tip nodes. The heating efficiency in the area is determined quantitatively by utilizing the data of the end nodes, so that the operation condition of the variable frequency pump is improved, and the flexible trend adjustment of the operation condition of the variable frequency pump can be realized. Furthermore, the frequency conversion pump out of control or externally hung in the loop network can be found, and the illegal intake of heat energy formed by privately adding the frequency conversion pump is struck, so that an effective heat dissipation efficiency monitoring means is formed.
The heat balance method according to an embodiment of the present invention is shown in fig. 2. In fig. 2, the present embodiment includes:
step 10: and responding to a communication request of the communication link, acquiring the current pressure and the current temperature of the tip node to form real-time data uploading.
The data acquisition is carried out in response to the communication request of the communication link, so that a passive response process is formed in the data acquisition process, the formed non-communication non-acquisition response mode can save the power consumption to the maximum extent, and the complete acquisition circuit is prevented from being in a continuous working state.
Step 20: the method comprises the steps of responding to a user request, establishing a near field communication link with a current tip node, receiving real-time data of the current tip node, combining the real-time data with existing experience to form environment perception data, and uploading the environment perception data through a far field communication link.
The acquisition mode of establishing a communication link in response to a user request, forming environment sensing data and uploading is used for tightly combining data acquisition with the position of the user, so that the position precision and the timeliness of the data acquisition are ensured. And the connection of the uplink and downlink of the data and the activation of the data acquisition process are formed through the room position of the user. The presence experience includes, but is not limited to, the volume, orientation, and demographic description of the physical space of the living room, and also includes somatosensory information of temperature, humidity, barometric pressure, and the like.
Step 30: and receiving environment perception data to form variable frequency pump control data in a determined area of the loop network so as to control the flow change of the medium in the determined area.
Subjective experience information of a user in a room and objective physical information of real-time data are obtained through environment perception data, accurate judgment of the heat supply efficiency and capacity of the peripheral node is formed, variable frequency pump control data for eliminating the defects of the heat supply efficiency and capacity of the peripheral node is further formed, heat supply of a peripheral node area is balanced, and the characteristic change of medium flow is mainly reflected.
The heat supply balance method of the embodiment of the invention realizes the activation and data connection of different types of communication links by using the user, forms the whole data acquisition process by using the position of the user, provides correction data through subjective and objective feelings of the user, provides a human-in-acquisition process basis for the formation of the variable frequency pump control data, and accordingly realizes the optimization process of the flow change of the medium in the determined area by the variable frequency pump control.
As shown in fig. 2, in an embodiment of the present invention, on the basis of the above embodiment, step 20 includes:
step 21: and receiving the real-time data through the near field communication link, analyzing the node identification data in the real-time data, and binding the node identification data with the user position data and the current timestamp data to form the real-time position data.
The node identification data reflects the uniqueness of the end node, the terminal identification data for establishing the communication link can be correspondingly adopted to reflect the uniqueness of the communication link, and the legality of the equipment in the acquisition process is verified through the uniqueness.
Step 22: and receiving formatted subjective data and objective data input by a user to form real-time position somatosensory data.
The formatted subjective data provides input according to the electronic formatted form, the data formats of the subjective data and the objective data are normalized, and the evaluation dimensionality of the heat supply efficiency is provided.
Step 23: and packaging the current pressure, the current temperature, the real-time position data and the real-time position somatosensory data of the tip node to form environment perception data.
The environment perception data utilizes the discrete characteristic of a loop network in a time domain formed by the current timestamp, the data dispersion is guaranteed, and the technical defect that error accumulation is formed by collecting gradient data by a local sensor is overcome.
Step 24: the context aware data is uploaded over the far field communication link and awaits data validation confirmation.
The data verification and confirmation of the upper system are used as trigger signals, so that the power consumption of the circuit processing process of each link can be effectively reduced, and the data integrity and the acquisition integrity are guaranteed.
Step 25: and confirming to disconnect the far-field communication link and the near-field communication link according to the data verification.
According to the heat supply balancing method, the user position information, the peripheral node acquisition data and the living room subjective and objective feeling data form a group of heating efficiency characteristics, the main data analysis dimensionality of the control data flow of the variable frequency pump is formed, the defect of indoor heat supply trend can be balanced in the control process of the variable frequency pump, and the front feedback or back feedback requirement of the peripheral node jump is met.
As shown in fig. 2, in an embodiment of the present invention, on the basis of the above embodiment, step 30 includes:
step 31: and establishing a remote node situation time domain database with the timestamp as an index for receiving the environment perception data.
As will be appreciated by those skilled in the art, the tip node posture time domain database stores chronological context awareness data for each tip node. In an actual loop network dense area, the number of the heating radiator groups in each living room as a terminal node, for example, one grade city, can reach hundreds of thousands of levels, and a multi-dimensional analysis statistical data is formed by an owner activation signal which initiates real-time data acquisition aiming at the living room heating efficiency.
Step 32: and establishing a frequency domain pressure characteristic, a frequency domain temperature characteristic and a frequency domain pressure-temperature correlation characteristic in the correlation determination region by using the tip node situation time domain database.
Those skilled in the art will appreciate that the association-determining region may be determined in a geographic location, including but not limited to:
determining a concentric association determination region of a circle center region, for example, forming a ring-shaped association determination region which surrounds the circle center region and gradually expands outwards by taking a group of adjacent rooms as the circle center region in a flat-layer community; each group of adjacent room ports in the flat-layer community can be used as a circle center area to form a set of different association determination areas;
determining adjacent association determination areas of the reference areas, for example, forming association determination areas with adjacent reference numbers gradually and continuously spreading outwards by taking a group of adjacent rooms as reference numbers in a tower community; each group of adjacent room ports in the tower community can be used as a reference area to form a set of different association determination areas;
or a set of different association-determining regions formed by a combination of the two types of association-determining regions.
The frequency domain pressure-temperature correlation is characteristic of the relative trend in amplitude between the two frequency domain features.
Step 33: and forming a situation trend characteristic in the correlation determination area according to the frequency domain pressure-temperature correlation characteristic and the time domain interval.
As will be understood by those skilled in the art, the judgment strategy for the situation trend characteristics comprises:
determining a frequency domain pressure characteristic and a frequency domain temperature characteristic for each of the associated determination regions;
further establishing frequency domain pressure characteristics and frequency domain temperature characteristics among the correlation determination areas;
further establishing frequency domain pressure trend characteristics and frequency domain temperature trend characteristics among all the correlation determination areas;
further establishing a situation association trend characteristic of the amplitude values in the frequency domain pressure trend characteristic and the frequency domain temperature trend characteristic; the situation correlation of the amplitude is measured by decibel dB;
and further establishing a correlation curve of the situation correlation trend characteristics and the time domain interval, and determining the prediction of the variation trend of the pressure and the temperature. And performing curve fitting through the variation trend of the pressure and the temperature to obtain a temperature-pressure trend curve in a future time domain interval.
Step 34: frequency domain pressure-temperature cancellation data is formed that cancels the trend signature.
Those skilled in the art will appreciate that the temperature-pressure trend curve is kept to cancel within a reasonable magnitude by forming frequency domain pressure-temperature cancellation data.
Step 35: and mapping the frequency domain pressure-temperature counteracting data into variable frequency pump PWM control data in the correlation determination area.
Those skilled in the art will appreciate that the pressure data in the frequency domain pressure-temperature cancellation data is dispersed into PWM control data in a future time domain interval for each variable frequency pump by the variable frequency pump power weights and delivery levels within the correlation determination region.
According to the heat supply balance method, the change trend of the pressure and the temperature in the correlation determination area is determined through the frequency spectrum analysis to perform curve fitting, a temperature-pressure trend fitting curve in a future time domain interval is obtained, and the adverse factors of the temperature-pressure trend fitting curve are offset. The control data of the variable frequency pump in the relevant determined area is adjusted, the realization quality of front feedback control is ensured, and the timeliness of rear feedback control is ensured.
The heat supply balance system of an embodiment of the present invention includes:
a memory for storing program codes of the heat supply balancing method processing steps of the above embodiment;
a processor for executing the program code of the heating balance method processing steps of the above embodiments.
The processor may be a dsp (digital Signal processing) digital Signal processor, an FPGA (Field-Programmable Gate Array), an mcu (microcontroller unit) system board, an soc (system on a chip) system board or a plc (Programmable Logic controller) minimum system including I/O, a graphics processor, or a general-purpose processor.
A heating balance system according to an embodiment of the present invention is shown in fig. 3. In fig. 3, the present embodiment includes:
the passive response acquisition device 410 is used for responding to a communication request of the communication link to acquire the current pressure and the current temperature of the distal node to form real-time data to be uploaded;
the link forming and activating device 420 is used for responding to a user request, establishing a near field communication link with the current tip node, receiving real-time data of the current tip node, combining the real-time data with the existing experience, forming environment perception data and uploading the environment perception data through a far field communication link;
and the data analysis and optimization device 430 is used for receiving the environment perception data to form a variable frequency pump control data in the determined area of the loop network to control the flow change of the medium in the determined area.
As shown in fig. 3, in an embodiment of the present invention, the link forming activation device 420 includes:
the location data binding module 421 is configured to receive the real-time data through the nfc link, analyze node identification data therein, and bind the node identification data with the user location data and the current timestamp data to form real-time location data;
the subjective data binding module 422 is configured to receive formatted subjective data and objective data input by a user to form real-time position somatosensory data;
the data fusion module 423 is used for packaging the current pressure, the current temperature, the real-time position data and the real-time position somatosensory data of the tip node to form environment perception data;
an uplink request module 424 for uploading context aware data over a far-field communication link and waiting for a data validation acknowledgement;
a link control module 425 to disconnect the far-field communication link and the near-field communication link based on the data validation confirmation.
As shown in fig. 3, in an embodiment of the present invention, the data analysis optimizing device 430 includes:
the time domain data forming module 431 is used for establishing a tip node situation time domain database which takes a timestamp as an index for receiving the environment perception data;
a frequency domain data forming module 432, configured to establish a frequency domain pressure characteristic, a frequency domain temperature characteristic, and a frequency domain pressure-temperature correlation characteristic in a correlation determination region by using the tip node situation time domain database;
the situation trend analysis module 433 is used for forming situation trend characteristics in the correlation determination area according to the frequency domain pressure-temperature correlation characteristic and the time domain interval;
a situation trend optimization module 434 for forming frequency domain pressure-temperature cancellation data for canceling the situation trend characteristics;
a control data conversion module 435 for mapping the frequency domain pressure-temperature cancellation data to variable frequency pump PWM control data within the correlation determination zone.
The situation sensor included in the situation acquisition node of the heat supply balance system according to an embodiment of the present invention is shown in fig. 4. In fig. 4, the situation sensor 140 includes an electrically insulated thermal medium container 150 and an elastic pressure container 160, the thermal medium container 150 is a circular tube with sealed upper and lower ends, a diversion through hole 151 is formed at the bottom end of the thermal medium container 150, and an adapter flange 152 is arranged on the diversion through hole 151 to form a reliable sealing connection with a radiator set exhaust valve port as a tip node. The elastic pressure vessel 160 includes a disc-shaped elastic sealing chamber 161 and a cylindrical elastic sealing chamber 162, the fixed end of the cylindrical elastic sealing chamber 162 is fixedly connected to the center of the disc-shaped elastic sealing chamber 161, and the elastic compression deformation direction of the elastic pressure vessel 160 can be formed mainly along the axial direction by performing the prefabrication process on the material strength direction of the elastic pressure vessel by using the prior art (such as the sidewall thickness or the annular texture). The elastic pressure container 160 and the heat medium container 150 are coaxially arranged, a fixing through hole 153 is formed in the center of the top end of the heat medium container 150, a disc-shaped elastic sealing cavity 161 is fixed to the top end of the heat medium container 150, and a cylindrical elastic sealing cavity 162 is fixed by penetrating through the fixing through hole 153. The top of the disc-shaped elastic sealing cavity 161 is covered with a limiting flat plate 154, and the limiting flat plate 154 is elastically fixed with the top end of the heat medium container 150 by uniformly arranging a rated deformation spring at the edge.
The situation sensor further comprises a pressure sensing module 170, the pressure sensing module 170 comprises an insulated parallel supporting circular plate 171, the parallel supporting circular plate 171 is fixedly connected with the side wall of the cylindrical elastic sealing cavity 162 through a fixing through hole formed in the center, the parallel supporting circular plate 171 is coaxial with the thermal medium container 150, and the outer diameter of the parallel supporting circular plate 171 is close to the inner diameter of the thermal medium container 150. The upper and lower ends of the parallel supporting circular plates 171 are respectively fixed with one annular electrode plate 172, and the adjacent annular electrode plates 172 on two adjacent parallel supporting circular plates 171 constitute opposite plates of one pressure measuring capacitor.
All of the ring electrode plates 172 are coated with an electrically insulating material.
The elastic pressure vessel 160 contains an organic insulating liquid therein.
In practice, the thermal medium filled in the thermal medium container 150 forms a stable thermal conductor that conducts heat and pressure to the elastic pressure vessel 160. The cylindrical elastic sealing cavity 162 is extruded to be compressed and deformed axially, so that the distance between the opposite electrode plates of each capacitor is changed to form a measurable analog electric signal. The deformation of the cylindrical elastic seal housing 162 causes the pressure to be applied to the disc-shaped elastic seal housing 161 to form a deformation absorbing pressure, and the elastic deformation stability is maintained by the stopper plate 154.
As shown in fig. 4, an electrically insulated annular support 155 is fixed at the bottom inside the thermal medium container 150, the situation sensor further includes a temperature sensing module 180, the temperature sensing module 180 includes a set of first conductive plates 181 fixed at intervals along the circumferential direction of the annular support 155, and also includes a set of second conductive plates 182 of the same number, the second conductive plates 182 are fixed at intervals along the circumferential direction of the inner wall of the thermal medium container 150, the second conductive plates 182 are opposite to the first conductive plates 181, and the first conductive plates 181 are fixed to the annular support 155 through an electrically insulated thermal deformation spring 183. The corresponding second conductive plate 182 and first conductive plate 181 form the opposite plates of a temperature measuring capacitor.
All of the second conductive pad 182, the first conductive pad 181 and the thermal deformation spring 183 are coated with an electrically insulating material.
In practice, the thermal medium filled in the thermal medium container 150 forms a stable thermal conductor that conducts heat and pressure to the elastic pressure vessel 160. The thermal deformation spring 183 is heated to extend radially along the annular support 155, so that the second conductive plate 182 is close to the first conductive plate 181.
Those skilled in the art will appreciate that the capacitance formed by the present implementation as a capacitive sensor can form a measurable capacitance or voltage signal. The capacitance can be directly obtained by, for example, passing each capacitor through a dual voltage method measuring structure formed with a matching resistor or a low direct current measuring structure connected in series with a voltage sensor, and the arrangement and combination structure of the prior art of the above capacitance measuring circuit is not specifically described. And measuring the obtained voltage change signal of the node in unit time to be used as an analog signal input for analog-to-digital conversion. The quantitative physical deformation is reflected by the mutual change of the measurement signals output by different capacitors, so that the physical characteristic situation change of specific temperature or pressure can be obtained.
As shown in fig. 4, in an embodiment of the present invention, an annular electrode plate 172 is also disposed on the inner wall of the top end of the thermal medium container 150, and forms an opposite plate of the capacitor with the adjacent annular electrode plate 172 on the adjacent parallel supporting circular plate 171.
As shown in fig. 4, in an embodiment of the present invention, the elastic deformation modulus of the cylindrical elastic sealed housing 162 is gradually decreased from the fixed end to the extended end by improving the material processing.
As shown in fig. 4, in one embodiment of the present invention, the elastic deformation modulus of each thermal deformation spring 183 is graded.
The heat supply balance system provided by the embodiment of the invention utilizes the integrated situation sensor to synchronously acquire the situation sensing signal of the tip node. Each pressure measurement capacitor formed may quantify a change in pressure within a quantified range, and differences in the quantified pressure changes across all pressure measurement capacitors may form a pressure signal verification. Further refined analysis of pressure variations can be formed when the quantization determination quantization range of each pressure measurement capacitor forms a stepped quantization range. Each temperature measurement capacitor formed may quantify a change in temperature over a quantified range, and differences in pressure change quantified by all temperature measurement capacitors may form a pressure signal verification. When the quantization range of each temperature measurement capacitor forms a gradient quantization range, further detailed analysis on the temperature change can be further formed.
The situation sensor included in the situation acquisition node of the heat supply balance system according to an embodiment of the present invention is shown in fig. 4. In fig. 5, the difference from the above embodiment is that the thermal medium container 150 includes an inner wall and an outer wall which include a coaxial line, the pressure sensing module 170 is installed in the inner wall, the temperature sensing module 180 includes a set of first conductive plates 181 fixed at intervals along the outer side of the inner wall in the circumferential direction, and also includes a set of second conductive plates 182 of the same number, the second conductive plates 182 are fixed at intervals along the inner side of the outer wall of the thermal medium container 150 in the circumferential direction, the second conductive plates 182 are opposite to the first conductive plates 181, and the first conductive plates 181 are fixed to the outer side of the inner wall by the thermal deformation springs 183. The corresponding second conductive plate 182 and first conductive plate 181 form the opposite plates of a temperature measuring capacitor.
The heat supply balance system provided by the embodiment of the invention utilizes the integrated situation sensor to synchronously acquire the situation sensing signal of the tip node. The temperature sensing modules 180 are distributed at the circumferential positions of the pressure sensing modules 170, so that the area of the cross section of the situation sensor can be effectively increased, disturbance factors of heat medium flow are balanced by using a communicated accommodating space formed by the inner wall and the outer wall, and the influence of the heat medium flow on the pressure sensing modules 170 is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A heating balance system, comprising:
the situation acquisition node is used for responding to the link communication request and acquiring the current pressure and the current temperature of the peripheral node to form real-time data to be uploaded;
the communication gateway is used for responding to a user request, establishing a collecting communication link with the situation collecting node, receiving the real-time data to form environment perception data and uploading the environment perception data;
the feedback response node is used for receiving the environment perception data and forming a medium flow characteristic in a frequency conversion pump control data balance determination area;
the situation acquisition node comprises:
the near field adaptive device is used for responding to the activation frequency signal to acquire a working power signal and near field link adaptive data, establishing a near field link, activating a power supply to supply power or cut off power to the signal processing circuit, and transmitting uplink data;
the power supply device is used for responding to an activation signal to supply power to the signal processing circuit, cutting off the power to the signal processing circuit according to the activation signal and acquiring induced voltage from a high-frequency magnetic field for charging;
the node encoder is used for receiving analog signals of the situation sensor, performing analog-to-digital conversion on the analog signals to form measurement data, encoding the measurement data and node identification data to form real-time data and transmitting the real-time data to the near-field link;
the situation sensor is used for forming a measurement signal of the current temperature and pressure of the tip node according to the quantized physical deformation; the situation sensor includes:
the heat medium container is a round pipe with the upper end and the lower end sealed, a flow guide through hole is formed in the bottom end of the heat medium container, and a switching flange is arranged on the flow guide through hole to form reliable sealing connection with a radiator set exhaust valve port of the end node; the elastic pressure container comprises a disc-shaped elastic sealing cavity and a cylindrical elastic sealing cavity, the fixed end of the cylindrical elastic sealing cavity is fixedly communicated with the center of the disc-shaped elastic sealing cavity, the elastic compression deformation direction of the elastic pressure container is along the axial direction, a fixing through hole is formed in the center of the top end of the thermal medium container, the disc-shaped elastic sealing cavity is fixed to the top end of the thermal medium container, the cylindrical elastic sealing cavity penetrates through the fixing through hole to be fixed, a limiting flat plate covers the top of the disc-shaped elastic sealing cavity, and the limiting flat plate is uniformly provided with a rated deformation spring through the edge to be elastically fixed with the top end of the thermal medium container;
the situation sensor also comprises a pressure sensing module, the pressure sensing module comprises an insulated parallel supporting circular plate, the parallel supporting circular plate is fixedly connected with the side wall of the cylindrical elastic sealing cavity body through a fixing through hole formed in the center, the parallel supporting circular plate and the thermal medium container are coaxial, the outer diameter of the parallel supporting circular plate is close to the inner diameter of the thermal medium container, the upper end and the lower end of the parallel supporting circular plate are respectively fixed with an annular electrode plate, adjacent annular electrode plates on two adjacent parallel supporting circular plates form opposite electrode plates of a pressure measurement capacitor, and the annular electrode plates are coated with an electric insulating material;
the situation sensor further comprises a temperature sensing module, the temperature sensing module comprises a group of first conductive plates and a group of second conductive plates, the first conductive plates are fixed at intervals in the circumferential direction of an annular support of which the bottom is electrically insulated in the thermal medium container, the second conductive plates are fixed at intervals in the circumferential direction of the inner wall of the thermal medium container along the heat, the second conductive plates are opposite to the first conductive plates, the first conductive plates are fixed with the annular support through an electrically-insulated thermal deformation spring, the second conductive plates correspond to the first conductive plates to form opposite plates of a temperature measurement capacitor, and the second conductive plates are coated with an electrically-insulating material on the first conductive plates.
2. A heating balance system as claimed in claim 1, wherein the communications gateway comprises:
the near field link activation device is used for forming and activating continuous activation frequency signals close to the situation acquisition nodes as required to form power signals, and the near field link activation device is matched with the near field adapter device to establish a near field link;
the identification data fusion device is used for combining terminal identification data in the mobile terminal or node identification data of the situation acquisition node and timestamp data to form an acquisition characteristic of real-time data in the process of receiving the uploaded data;
the environment data fusion device is used for combining the quantitative description and the collection characteristics of the user on the space where the tip node is located in the process of receiving the uploaded data to form the environment perception data;
and the far-field link interaction device is used for establishing a far-field link with the feedback response node as required to upload the environment perception data, disconnecting the far-field link after obtaining data verification confirmation of the feedback response node, and disconnecting the near-field link after sending the data verification confirmation to the situation acquisition node.
3. A heating balance system as claimed in claim 1, wherein the feedback response node comprises:
the data front end collecting device is used for asynchronously receiving environment perception data uploaded by a plurality of situation acquisition nodes and forming situation distribution data in a time domain according to acquisition characteristics;
the situation analysis modeling device is used for forming time domain and frequency domain conversion according to the situation distribution data to obtain situation trend characteristics in a frequency domain;
the control strategy response device is used for forming a balanced trend data stream according to the situation trend characteristics;
and the control data synchronizer is used for forming a control data stream of the variable frequency pump in the corresponding area according to the trend balance data stream and balancing the heating situation in the corresponding area.
4. A heating balance system as defined in claim 1 wherein said resilient pressure vessel contains an organic insulating liquid therein.
5. A heating balance system as defined in claim 1 wherein the modulus of elastic deformation of said cylindrical elastic sealed housing decreases in steps from the fixed end to the extended end.
6. The heating balance system of claim 1, wherein the elastic deformation modulus of each of the thermally deformable springs is graded.
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| CN108488898A (en) * | 2018-03-29 | 2018-09-04 | 浙江盾安自控科技有限公司 | A kind of method that heat exchange station system primary side water supply network hydropower dynamic balancing is adjusted |
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| CN108488898A (en) * | 2018-03-29 | 2018-09-04 | 浙江盾安自控科技有限公司 | A kind of method that heat exchange station system primary side water supply network hydropower dynamic balancing is adjusted |
| CN109373441A (en) * | 2018-12-20 | 2019-02-22 | 普瑞森能源科技（北京）股份有限公司 | Heat supply network energy management system and its processing method |
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