CN114675690B - Temperature regulation and control method and device for heat exchanger equipment - Google Patents

Temperature regulation and control method and device for heat exchanger equipment Download PDF

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CN114675690B
CN114675690B CN202210297770.1A CN202210297770A CN114675690B CN 114675690 B CN114675690 B CN 114675690B CN 202210297770 A CN202210297770 A CN 202210297770A CN 114675690 B CN114675690 B CN 114675690B
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heat exchanger
temperature
circulation device
water circulation
water
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CN114675690A (en
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杨金东
刘红文
李俊峰
吴万军
聂鼎
杨子龙
宋忧乐
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Electric Power Research Institute of Yunnan Power Grid Co Ltd
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Electric Power Research Institute of Yunnan Power Grid Co Ltd
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

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  • Engineering & Computer Science (AREA)
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  • Air Conditioning Control Device (AREA)

Abstract

The embodiment of the invention provides a temperature regulation and control method and device of heat exchanger equipment, wherein the temperature regulation and control method of the heat exchanger equipment comprises the following steps: acquiring the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water and a temperature threshold value of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result; establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model, and determining the flow regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model; and regulating and controlling the temperature of the heat exchanger equipment according to the regulation and control mode and the flow rate regulated and controlled by the water circulation device. And the energy saving is realized by determining the flow rate when the total power consumption is minimum and performing temperature regulation.

Description

Temperature regulation and control method and device for heat exchanger equipment
Technical Field
The invention relates to the technical field of temperature regulation and control, in particular to a temperature regulation and control method and device for heat exchanger equipment.
Background
The high altitude area has complex topography, difficult and slow power grid construction development, rapid regional economic development and rapid power consumption increase, and the contradiction between the ever-increasing power consumption demand and the power supply quality of people can not be avoided. The high-altitude area contains abundant wind, light and water resources, is suitable for developing new energy power generation, and can effectively solve the problems of new energy power generation and absorption and power supply reliability by combining an energy storage system to establish a micro-grid. However, climate and environment in the high sea area are bad, safety and operation efficiency of the micro-grid equipment are affected, for example, day-night temperature difference affects tightness of the energy storage battery, for example, frost and dew are reduced, power generation efficiency of the photovoltaic panel is reduced, for example, capacity of the energy storage battery is reduced at low temperature at night. Therefore, the operation temperature of the micro-grid equipment is regulated, and the method plays an extremely important role in the reliability and economy of a grid system. Therefore, a solution to the problems of comprehensive temperature regulation and energy recovery of high altitude micro grid equipment is needed.
Disclosure of Invention
The invention mainly aims to provide a temperature regulation method and device for heat exchanger equipment, which can solve the problem of overlarge power consumption during temperature regulation in the prior art.
To achieve the above object, a first aspect of the present invention provides a temperature regulation method of a heat exchanger apparatus, the method comprising:
acquiring the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water and a temperature threshold value of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result;
establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model, and determining the flow regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model; the heat exchanger equipment temperature rise model is used for solving the mathematical relationship between circulating water flow and circulating water supply time; the water circulation device energy consumption model is a mathematical relationship between the total power consumption of the water circulation device and a flow function of the water circulation device; the water circulation device comprises at least one of a hot water circulation device and a cold water circulation device; the circulating water refers to water used for heating or cooling the heat exchanger equipment in the water circulating device;
and regulating and controlling the temperature of the heat exchanger equipment according to the regulation and control mode and the flow rate regulated and controlled by the water circulation device.
In the technical scheme, the regulation and control mode of the heat exchanger equipment is determined by comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of circulating water and the temperature threshold of the heat exchanger equipment, a temperature rise model of the heat exchanger equipment and an energy consumption model of the water circulation device are built, and the flow rate of the water circulation device for regulating and controlling the heat exchanger equipment is solved under the condition that the total power consumption of the water circulation device is minimum. And finally, regulating and controlling the flow to the heat exchanger equipment through the determined regulation and control mode and the determined water circulation device, and regulating and controlling the temperature of the heat exchanger equipment. Under the condition that the total power consumption of the water circulation device is minimum, the flow regulated and controlled by the water circulation device to the heat exchanger equipment is calculated to regulate and control the heat exchanger equipment, so that the energy and resource conservation is effectively realized.
With reference to the first aspect, in one possible implementation manner, the building a heat exchanger device temperature rise model includes:
and building a temperature rise model of the heat exchanger equipment according to a functional relation formed by the circulating water flow, the circulating water supply time, the real-time temperature of the heat exchanger equipment, the temperature threshold of the heat exchanger equipment, the real-time temperature of the circulating water and the real-time air temperature.
With reference to the first aspect, in one possible implementation manner, the building a water circulation device energy consumption model includes:
And establishing an energy consumption model of the water circulation device according to the rated power of the water circulation device, the rated flow of the water circulation device, the basic loss power of the water circulation device, the flow function of the water circulation device, the starting operation time of the water circulation device and the time of the water circulation device reaching the corresponding temperature threshold value of the heat exchanger equipment.
With reference to the first aspect, in one possible implementation manner, the determining, according to the heat exchanger device temperature rise model and the water circulation device energy consumption model, that the water circulation device regulates and controls the flow to the heat exchanger device in the case that the total power consumption of the water circulation device is minimum includes:
establishing an objective function of the total power consumption of the water circulation device, and solving the minimum value of the total power consumption of the water circulation device according to the temperature rise model of the heat exchanger equipment and the objective function; the objective function is used for obtaining the minimum value of the total power consumption of the water circulation device;
substituting the solved minimum value of the total power consumption of the water circulation device into the water circulation device energy consumption model, and determining a flow function regulated and controlled by the water circulation device;
and determining the flow regulated and controlled to the heat exchanger equipment by the water circulation device according to the flow function.
With reference to the first aspect, in one possible implementation manner, the solving the minimum value of the power consumption sum of the water circulation device according to the heat exchanger equipment temperature rise model and the objective function includes:
and determining constraint conditions for solving the objective function according to the heat exchanger equipment temperature rise model, and solving the minimum value of the power consumption sum of the water circulation device according to the constraint conditions and the objective function.
With reference to the first aspect, in a possible implementation manner, the heat exchanger apparatus temperature threshold is divided into a heating start threshold and a cooling start threshold, and the determining, according to a comparison result, a regulation mode of the heat exchanger apparatus includes:
when the real-time temperature of the heat exchanger equipment is smaller than the heating start threshold, determining the regulation mode as a first heating mode in a staged regulation mode; the first heating mode is that the hot water circulation device supplies water to the water inlet end of the corresponding heat exchanger device;
when the real-time temperature of the heat exchanger equipment is greater than the cooling start threshold, determining the regulation mode as a cooling mode in the staged regulation mode; the cooling mode is that the cold water circulation device is used for introducing cold water in the cold water storage device to the water inlet end of the corresponding heat exchanger equipment;
Determining the regulation mode as a second heating mode in the staged regulation mode when a heating start threshold is less than a circulating water real-time temperature, the circulating water real-time temperature is less than a heat exchanger device real-time temperature, and the heat exchanger device real-time temperature is less than the cooling start threshold; the second heating mode is that the hot water circulating device is used for introducing water which is not heated completely in the hot water storage device to the water inlet end of the corresponding heat exchanger device.
With reference to the first aspect, in a possible implementation manner, the heat exchanger device temperature threshold is divided into a heating start threshold and a cooling start threshold, and the determining a regulation mode of the heat exchanger device according to a comparison result further includes:
when the real-time temperature of the heat exchanger equipment reaches the heating start threshold corresponding to the heat exchanger equipment at night or in winter, determining the regulation mode as a first mode under a classification regulation mode, wherein the first mode under the classification regulation mode is that hot water in the hot water circulation device is injected into the heat exchanger equipment to heat the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is greater than the heating start threshold and the temperature of heated water injected into the heat exchanger equipment is reduced to a preset temperature;
And in the daytime, when the real-time temperature of the heat exchanger equipment reaches the cooling start threshold corresponding to the heat exchanger equipment, determining the regulation mode as a second mode in the classification regulation mode, wherein the second mode in the classification regulation mode is to inject cold water in a cold water storage device or water which is not heated in a hot water circulation device into the heat exchanger equipment to cool the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is smaller than the cooling start threshold and the temperature of cooling water injected into the heat exchanger equipment is increased to a preset temperature.
To achieve the above object, a second aspect of the present invention provides a temperature regulation apparatus of a heat exchanger device, the apparatus comprising:
the regulation and control mode determining module: the method comprises the steps of acquiring real-time temperature of heat exchanger equipment and real-time temperature of circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water with a temperature threshold of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result;
the flow determination module: the method comprises the steps of establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model, and determining the flow rate regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model;
And a temperature regulation module: and the temperature control device is used for controlling the temperature of the heat exchanger equipment according to the control mode and the flow rate of the water circulation device to the heat exchanger equipment.
To achieve the above object, a third aspect of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of:
acquiring the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water and a temperature threshold value of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result;
establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model, and determining the flow regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model; the heat exchanger equipment temperature rise model is used for solving the mathematical relationship between circulating water flow and circulating water supply time; the water circulation device energy consumption model is a mathematical relationship between the total power consumption of the water circulation device and a flow function of the water circulation device; the water circulation device comprises at least one of a hot water circulation device and a cold water circulation device, and the circulating water refers to water used for heating or cooling the heat exchanger equipment in the water circulation device.
And regulating and controlling the temperature of the heat exchanger equipment according to the regulation and control mode and the flow rate regulated and controlled by the water circulation device.
To achieve the above object, a fourth aspect of the present invention provides a computer device including a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of:
acquiring the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water and a temperature threshold value of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result;
establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model, and determining the flow regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model; the heat exchanger equipment temperature rise model is used for solving the mathematical relationship between circulating water flow and circulating water supply time; the water circulation device energy consumption model is a mathematical relationship between the total power consumption of the water circulation device and a flow function of the water circulation device; the water circulation device comprises at least one of a hot water circulation device and a cold water circulation device, and the circulating water refers to water used for heating or cooling the heat exchanger equipment in the water circulation device.
And regulating and controlling the temperature of the heat exchanger equipment according to the regulation and control mode and the flow rate regulated and controlled by the water circulation device.
The embodiment of the invention has the following beneficial effects: the method comprises the steps of comparing the real-time temperature of heat exchanger equipment, the real-time temperature of circulating water and a temperature threshold value of the heat exchanger equipment, determining a regulation and control mode of the heat exchanger equipment, establishing a temperature rise model of the heat exchanger equipment and an energy consumption model of a water circulation device, and solving the problem that the water circulation device is used for regulating and controlling the flow rate of the heat exchanger equipment under the condition that the total power consumption of the water circulation device is minimum. And finally, regulating and controlling the flow to the heat exchanger equipment through the determined regulation and control mode and the determined water circulation device, and regulating and controlling the temperature of the heat exchanger equipment. Under the condition that the total power consumption of the water circulation device is minimum, the water circulation device is calculated to regulate and control the flow rate of the heat exchanger equipment, so that the heat exchanger equipment is regulated and controlled, and the energy and resource conservation is effectively realized.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
FIG. 1 is a schematic diagram of a temperature regulation system of a heat exchanger apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for controlling the temperature of a heat exchanger device according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a heat exchanger temperature rise model building method of a heat exchanger device according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method for establishing an energy consumption model of a water circulation device according to an embodiment of the invention;
FIG. 5 is a schematic flow chart of determining the flow rate regulated by the water circulation device to the heat exchanger device according to the embodiment of the invention;
FIG. 6 is a schematic diagram of a temperature control device of a heat exchanger apparatus according to an embodiment of the present invention;
fig. 7 is a block diagram of a computer device in an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The application provides a temperature regulation and control system of heat exchanger equipment, and referring to fig. 1, fig. 1 is a temperature regulation and control system of heat exchanger equipment, the system includes: hydropower station 101, cold water storage 102, cold water circulation 103, hot water circulation 104, circulating water heating 105, hot water storage 106, energy storage heat exchanger 107, photovoltaic panel heat exchanger 108, inverter/inverter heat exchanger 109, and hot water storage 106 is provided with an auxiliary heating device. Specifically, the cold water storage device 102 is connected with the water outlet end of the turbine of the hydropower station 101 through a cold water supply pipeline 1, the cold water supply pipeline 1 can be a white steel pipe with the diameter of 300mm, a flow control valve and a temperature sensor are arranged on the pipeline 1, the cold water storage device 102 is used for storing cold water discharged by the turbine of the hydropower station, and the cold water storage device 102 can also be provided with a liquid level sensor and a temperature sensor. The energy storage device heat exchanger 107, the photovoltaic plate heat exchanger 108 and the frequency converter/inverter heat exchanger 109 are cooled and heated by adopting the same set of running water heat exchange device, a time-division cooling and heating heat exchange mode is adopted, the cold water circulation device 103 is respectively connected with the water inlet end of the energy storage device heat exchanger 107, the water inlet end of the photovoltaic plate heat exchanger 108 and the water inlet end of the frequency converter/inverter heat exchanger 109 through the pipeline 2, and the cooling water supply pipeline 2 can adopt three groups of white steel pipe pipelines with phi of 100mm and is provided with a flow control valve, a temperature sensor and a flow sensor. The water outlet end of the hot water circulation device 104 is respectively connected with the water inlet end of the energy storage device heat exchanger 107, the water inlet end of the photovoltaic plate heat exchanger 108 and the water inlet end of the frequency converter/inverter heat exchanger 109 through the hot water supply pipeline 5, and the pipeline 5 can adopt three groups of heat preservation pipelines with phi of 100mm and is provided with a flow control valve, a temperature sensor and a flow sensor. In the cooling water return pipeline, the water inlet end of the hot water storage device 106 is respectively connected with the water outlet end of the energy storage device heat exchanger 107, the water outlet end of the photovoltaic panel heat exchanger 108 and the water outlet end of the frequency converter/inverter heat exchanger 109 through the cooling water return pipeline 3, the pipeline 3 can adopt a heat preservation pipeline with phi of 100mm, a temperature sensor and a switch valve are arranged, and the hot water storage device 106 is used for receiving and storing water discharged by the energy storage device heat exchanger 107, the photovoltaic panel heat exchanger 108 and the frequency converter/inverter heat exchanger 109. In the hot water return pipeline, the water inlet end of the hot water storage device 106 is respectively connected with the water outlet end of the energy storage device heat exchanger 107, the water outlet end of the photovoltaic plate heat exchanger 108 and the water outlet end of the frequency converter/inverter heat exchanger 109 through the hot water return pipeline 7, and the pipeline 7 can adopt a heat preservation pipeline with phi of 100mm and is provided with a temperature sensor and a switch valve.
In addition, the water outlet end of the hot water storage device 106 is connected with the water inlet end of the hot water circulation device 104 through a pipeline 4, and a heat-insulating pipeline pipe with the diameter of 300mm can be adopted as the pipeline 4. The water outlet end of the hot water circulation device 104 is connected with the hydropower station 101 through a hot water supply pipeline 6, and the pipeline 6 can be a white steel pipe pipeline with phi of 100mm and is connected with a water storage side pool of the hydropower station and is provided with a flow control valve and a flow sensor. Temperature sensors are arranged on electrical equipment bodies such as the energy storage equipment heat exchanger 107, the photovoltaic plate heat exchanger 108, the frequency converter/inverter heat exchanger 109 and the like, and the temperature sensors arranged on the electrical equipment bodies such as the energy storage equipment heat exchanger 107, the photovoltaic plate heat exchanger 108, the frequency converter/inverter heat exchanger 109 and the like are all purchased with PT100 temperature measuring resistors and acquisition equipment.
The foregoing describes a temperature regulation system of a heat exchanger device provided in this embodiment, and a temperature regulation method of a heat exchanger device is described based on the system, with reference to fig. 2, fig. 2 is a schematic flow diagram of a temperature regulation method of a heat exchanger device, where the method specifically includes:
step S101, acquiring the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water, comparing the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water with a temperature threshold of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result.
Step S102, a heat exchanger equipment temperature rise model and a water circulation device energy consumption model are established, and the flow rate regulated and controlled by the water circulation device to the heat exchanger equipment is determined according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model under the condition that the total power consumption of the water circulation device is minimum.
And step 103, regulating and controlling the temperature of the heat exchanger equipment according to the regulation and control mode and the flow rate regulated and controlled by the water circulation device.
The water circulation device comprises at least one of a hot water circulation device and a cold water circulation device, and the circulating water is water used for heating or cooling the heat exchanger device in the water circulation device.
Step S101 is first introduced, the real-time temperature of the heat exchanger device and the real-time temperature of the circulating water are obtained, the real-time temperature of the heat exchanger device, the real-time temperature of the circulating water and the temperature threshold value of the heat exchanger device are compared, and the regulation and control mode of the heat exchanger device is determined according to the comparison result.
In this embodiment, the real-time temperature of the heat exchanger apparatus is obtained by a temperature sensor mounted on the body of the heat exchanger apparatus, and the real-time temperature of the circulating water is obtained by temperature sensors on all the pipes 2 and 5. In addition, the embodiment also adopts the system monitoring device to collect and measure the water temperature, the water quantity and the weather temperature T of the regulation and control system in real time Air flow . Since there may be more than one heat exchanger apparatus, there may be multiple heat exchanger apparatus real-time temperatures acquired. In this embodiment, the heat exchanger device includes an energy storage device heat exchanger, a photovoltaic plate heat exchanger, and a frequency converter/inverter heat exchanger, and thus the obtained real-time temperature of the heat exchanger device includes the real-time temperature T of the energy storage device heat exchanger C Real-time temperature T of photovoltaic plate heat exchanger G Real-time temperature T of frequency converter/inverter heat exchanger B Specific data may be as shown in table 1:
TABLE 1
Figure GDA0004089551730000081
Because the performances of different heat exchanger devices are different, according to the embodiment, different heat exchanger device temperature thresholds are adopted to be compared with corresponding heat exchanger device real-time temperatures and circulating water real-time temperatures for different heat exchanger devices. In this embodiment, the judgment as to whether the heat exchanger device needs to be cooled by cooling water or by heating with hot water has different judgment standards, so that the temperature threshold of the heat exchanger device is divided into a heating start threshold and a cooling start threshold. The different heat exchanger device temperature thresholds may be determined based on the corresponding heat exchanger device according to different conditions, e.g., for an energy storage device heat exchanger, according to the stored energy The model and the material of a battery photovoltaic panel determine the optimal operation temperature range, and the minimum temperature value is defined as the heating start threshold T of the heat exchanger of the energy storage device Cmin The maximum value is defined as a cooling start threshold T of the heat exchanger of the energy storage device Cmax The method comprises the steps of carrying out a first treatment on the surface of the For the photovoltaic plate heat exchanger, according to the local environment, the climate and the surface structure of the photovoltaic plate heat exchanger, the average value of the surface dew points of the photovoltaic plate heat exchanger can be counted, and the average value is determined as the heating starting threshold T of the photovoltaic plate heat exchanger Gmin According to the model, the material and the aging condition of the photovoltaic plate, calculating the temperature value of the maximum power generation efficiency of the photovoltaic plate heat exchanger, and determining the temperature value as the cooling dynamic threshold T of the photovoltaic plate heat exchanger Gmax The method comprises the steps of carrying out a first treatment on the surface of the Similarly, for the frequency converter/inverter heat exchanger, the average value of the surface dew points of the frequency converter/inverter heat exchanger is calculated according to the local environment, the climate and the surface structure of the frequency converter/inverter heat exchanger, and the average value is determined as a heating start threshold T of the frequency converter/inverter heat exchanger Bmin Determining a cooling dynamic threshold T of a heat exchanger of the frequency converter/inverter according to the upper limit value of the running temperature of the frequency converter/inverter Bmax . The specific data may be as shown in table 2:
TABLE 2
T Gmin T Gmax T Cmin T Cmax T Bmin T Bmax
5℃ 10℃ 20℃ 40℃ 10℃ 50℃
After the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water are obtained and the temperature threshold value of the heat exchanger equipment is determined, further, the regulation and control mode of the heat exchanger equipment is determined according to the comparison results of the three. In this embodiment, the regulation modes are classified into a classification regulation mode and a staged regulation mode according to different comparison modes.
The regulation mode under the staged regulation mode specifically comprises the following steps:
when the real-time temperature of the heat exchanger equipment is smaller than the heating start threshold, the regulation and control mode is determined to be a first heating mode in the staged regulation and control mode, and the first heating mode is that the hot water circulation device supplies water to the water inlet end of the corresponding heat exchanger equipment. When the real-time temperature of the heat exchanger equipment is greater than the cooling start threshold, determining a regulation mode as a cooling mode under a staged regulation mode, wherein the cooling mode is that cold water in a cold water storage device is introduced into a water inlet end of the corresponding heat exchanger equipment by a cold water circulation device; when the heating start threshold is less than the real-time temperature of the circulating water, the real-time temperature of the circulating water is less than the real-time temperature of the heat exchanger device, and the real-time temperature of the heat exchanger device is less than the cooling start threshold, determining the regulation mode as a second heating mode in the staged regulation mode; the second heating mode is that the hot water circulating device is used for introducing the water which is not heated completely in the hot water storage device to the water inlet end of the corresponding heat exchanger device.
The regulation and control modes under the classification regulation and control mode are specifically as follows:
and when the real-time temperature of the heat exchanger equipment reaches the heating start threshold corresponding to the heat exchanger equipment at night or in winter, determining the regulation and control mode as a first mode under the classification regulation and control mode, wherein the first mode under the classification regulation and control mode is that hot water in the hot water circulation device is injected into the heat exchanger equipment of the heat exchanger, and heating the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is larger than the heating start threshold and the water temperature of heating water injected into the heat exchanger equipment is reduced to a preset temperature. And when the real-time temperature of the heat exchanger equipment reaches the cooling start threshold value corresponding to the heat exchanger equipment in daytime, determining the regulation mode as a second mode under the classification regulation mode, wherein the second mode under the classification regulation mode is to inject cold water in the cold water storage device or water which is not heated in the hot water circulation device into the heat exchanger equipment to cool the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is smaller than the cooling start threshold value and the temperature of cooling water injected into the heat exchanger equipment is increased to a preset temperature, wherein the preset temperature can be set according to actual conditions.
In particular, during night or winter weather, the energy storage device heat exchanger real-time temperature T C Reaching a heating start threshold T corresponding to the heat exchanger of the energy storage device Cmin When the temperature of the energy storage device heat exchanger is higher than the temperature T, the hot water circulation device is started to inject hot water of the hot water storage device into the energy storage device heat exchanger until the real-time temperature of the energy storage device heat exchanger is higher than the temperature T Cmin And the temperature of the heated water is reduced to a preset temperature; real-time temperature T of heat exchanger of energy storage device C The energy storage device reaches a cooling start threshold T corresponding to the heat exchanger of the energy storage device Cmax When the energy storage device is started, cold water in the cold water storage device is introduced into the water inlet end of the energy storage device heat exchanger by the cold water circulation device or water which is not fully heated in the hot water storage device is introduced into the water inlet end of the energy storage device heat exchanger by the hot water circulation device until the temperature of the energy storage device heat exchanger is smaller than T Cmax And the temperature of the cooling water is raised to a preset temperature.
Real-time temperature T of photovoltaic plate heat exchanger in night or snowfall G Reaching a heating start threshold T corresponding to the photovoltaic plate heat exchanger Gmin When the temperature of the photovoltaic plate heat exchanger is higher than T, the hot water circulation device is started to inject the hot water of the hot water storage device into the photovoltaic plate heat exchanger until the real-time temperature of the photovoltaic plate heat exchanger is higher than T Gmin And the temperature of the heated water is reduced to a preset temperature; during daytime, real-time temperature T of photovoltaic plate heat exchanger G Reaching a cooling start threshold T corresponding to the photovoltaic plate heat exchanger Gmax When the temperature of the photovoltaic plate heat exchanger is lower than T, the cold water circulation device is started to feed cold water in the cold water storage device to the water inlet end of the photovoltaic plate heat exchanger, or the hot water circulation device is started to feed water which is not fully heated in the hot water storage device to the water inlet end of the photovoltaic plate heat exchanger until the real-time temperature of the photovoltaic plate heat exchanger is lower than T Gmax And the temperature of the cooling water is raised to a preset temperature.
During night or winter weather, the real-time temperature T of the frequency converter/inverter heat exchanger B Reaching a heating start threshold T corresponding to the frequency converter/inverter heat exchanger Bmin When the temperature of the hot water circulation device is higher than the temperature T, the hot water circulation device is started to inject the hot water of the hot water storage device into the frequency converter/inverter heat exchanger until the real-time temperature of the frequency converter/inverter heat exchanger is higher than the temperature T Bmin And the temperature of the heated water is reduced to a preset temperature; during daytime, the real-time temperature T of the frequency converter/inverter heat exchanger B The energy storage device reaches a cooling start threshold T of the frequency converter/inverter heat exchanger Bmax When the temperature of the heat exchanger is lower than T, the cold water circulation device is started to feed cold water in the cold water storage device to the water inlet end of the heat exchanger of the frequency converter/inverter or the hot water circulation device is started to feed water which is not fully heated in the hot water storage device to the water inlet end of the heat exchanger of the frequency converter/inverter until the temperature of the heat exchanger of the frequency converter/inverter is lower than T Bmax And the temperature of the cooling water is raised to a preset temperature.
For example, referring to the data of tables 1 and 2, at 14:00, the photovoltaic panel heat exchanger real-time temperature T G Is 30 ℃ higher than the cooling start threshold T of the photovoltaic plate heat exchanger Gmax Cooling is needed at the temperature of 10 ℃, and a cold water circulation device is started to introduce cold water in a cold water storage device to the water inlet end of the photovoltaic plate heat exchanger; at 3:00, the real-time temperature T of the photovoltaic plate heat exchanger G Is less than the cooling start threshold T of the photovoltaic plate heat exchanger at 0 DEG C Gmin And controlling the hot water circulation device to supply water to the water inlet end of the photovoltaic plate heat exchanger at the temperature of 5 ℃.
According to the embodiment, the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water are obtained in real time, the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water are compared with the temperature threshold value of the heat exchanger equipment, the regulation and control mode of the heat exchange equipment is determined in real time according to the comparison result, and the temperature detection and the temperature regulation and control of the heat exchanger equipment are effectively and timely achieved.
How to determine the regulation and control mode is described above, and step S102 is described, a heat exchanger equipment temperature rise model and a water circulation device energy consumption model are established, and the flow rate regulated and controlled to the heat exchanger equipment by the water circulation device is determined according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model under the condition that the total power consumption of the water circulation device is minimum.
The water circulation device energy consumption model is a mathematical relationship between the total power consumption of the water circulation device and a flow function of the water circulation device, and the circulating water refers to water used for heating or cooling the heat exchanger device in the water circulation device.
In this embodiment, referring to fig. 3, fig. 3 is a schematic flow chart of a method for establishing a temperature rise model of a heat exchanger device according to this embodiment, and as shown in fig. 3, the temperature rise model of the heat exchanger device may be established in the following manner:
and S1021, constructing a temperature rise model of the heat exchanger equipment according to a functional relation formed by the circulating water flow, the circulating water supply time, the real-time temperature of the heat exchanger equipment, the temperature threshold value of the heat exchanger equipment, the real-time temperature of the circulating water and the real-time air temperature.
The method comprises the following steps:
vt＝(T is provided with -T m )k/(T Is provided with -T Water and its preparation method j-T Air flow i)
Wherein v is the circulating water flow; t is the water supply time of the circulating water; t (T) Is provided with Real-time temperature for the heat exchanger device; t (T) m A heat exchanger apparatus temperature threshold; t (T) Water and its preparation method The temperature of the circulating water is real-time; t (T) Air flow Real-time air temperature; k is a specific heat coefficient, j is a heat exchange coefficient between the water circulation device and the heat exchanger device, i is a heat exchange coefficient between air and the heat exchanger device, and the three coefficients can be set to be equivalent experience values or set values according to the running conditions of the heat exchanger devices.
For example, j is calculated to be 1.5, i is calculated to be 0.5, k is calculated to be 5 according to the long-term operation parameters, and the temperature rise model of the photovoltaic plate heat exchanger is determined to be vt=5 (T Is provided with -T m )/(T Is provided with -T Water and its preparation method 1.5-T Air flow 0.5). And in the same way, j in the energy storage device heat exchanger temperature rise model is determined to be 2, i is determined to be 0.8, k is determined to be 10, and the obtained energy storage device heat exchanger temperature rise model is obtained to be vt=10 (T Is provided with -T m )/(T Is provided with -T Water and its preparation method 2-T Air flow 0.8 And j is 1.8, i is 0.6, k is 8 in the frequency converter/inverter heat exchanger temperature rise model, yielding a frequency converter/inverter heat exchanger temperature rise model of vt=8 (T) Is provided with -T m )/(T Is provided with -T Water and its preparation method 1.8-T Air flow 0.6)。
From the above, T Is provided with 、T m 、T Air flow 、T Water and its preparation method All the temperature data can be acquired according to the instrument equipment, namely the temperature data are known conditions, the data are correspondingly substituted into a temperature rise model of the heat exchanger equipment, and the product value of the flow v and the water supply time t can be obtained, namely the water consumption required by the heat exchanger equipment when the heat exchanger equipment is cooled and heated.
The above description is given of how the temperature rise model of the heat exchanger device is obtained, and the following description is given of the establishment of the energy consumption model of the water circulation device, wherein the energy consumption model of the water circulation device is a mathematical relationship between the total power consumption of the water circulation device and the flow function of the water circulation device, and referring to fig. 4, fig. 4 is a schematic flow diagram of a method for establishing the energy consumption model of the water circulation device, and as shown in fig. 4, the energy consumption model of the water circulation device can be established by the following manners:
Step S1022, establishing an energy consumption model of the water circulation device according to the rated power of the water circulation device, the rated flow rate of the water circulation device, the basic loss power of the water circulation device, the flow function of the water circulation device, the starting operation time of the water circulation device and the time when the temperature of the water circulation device reaches the corresponding temperature threshold value of the heat exchanger equipment.
The method comprises the following steps:
Figure GDA0004089551730000121
wherein W is the total power consumption of the water circulation device; v k (t) kth water circulation device flow function; p (P) ek For the kth water circulationRated power of the device; v ek Rated flow for the kth water circulation device; c (C) k The power is basically lost for the kth water circulation device; t is t 0k T is the time when the kth water circulation device starts to operate mk For the temperature of the kth water circulation device to reach the heat exchanger device temperature threshold T m Is a time of (a) to be used.
In the present embodiment, the flow function v is calculated for convenience k (t) rated power P of all water circulation devices ek And rated flow v ek Respectively taking a fixed value of 50kW and a fixed value of 100L/s, namely, the energy consumption model of the water circulation device is as follows:
Figure GDA0004089551730000131
further, according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model, it is determined that the water circulation device regulates and controls the flow rate to the heat exchanger equipment under the condition that the total power consumption of the water circulation device is minimum, referring to fig. 5, fig. 5 is a schematic flow chart for determining the flow rate of the water circulation device regulated and controlled to the heat exchanger equipment, which is provided in this embodiment, and specifically includes the following steps:
Step S1023, establishing an objective function of the total power consumption of the water circulation device, and solving the minimum value of the total power consumption of the water circulation device according to the temperature rise model of the heat exchanger equipment and the objective function.
And step S1024, substituting the solved minimum value of the total power consumption of the water circulation device into the water circulation device energy consumption model, and determining the flow function of the regulated water circulation device.
Step S1025, determining the flow regulated and controlled by the water circulation device to the heat exchanger equipment according to the flow function.
Wherein the objective function is used for obtaining the minimum value of the total power consumption of the water circulation device
In the present embodiment, the objective function is constructed as MIN { W (v) 1 (t)、v 2 (t)、…、v k (t)、…、v n (t)) } represents the time function of the total power consumption W with respect to the flow rate of the n water circulation devicesAnd n is the number of all water circulation devices running in the system, and the minimum value of the total power consumption of the water circulation devices can be obtained through an objective function. Specifically, determining constraint conditions for solving an objective function according to a heat exchanger equipment temperature rise model, wherein the real-time temperature and circulating water flow rate of circulating water in the heat exchanger equipment temperature rise model are variables, so that the result of time T is uncertain, and T in the heat exchanger equipment temperature rise model Water and its preparation method ∈[T Storage device ，T Is provided with ]Water temperature constraints among constraints as solving objective functions, where T Storage device The temperature of the water stored in the circulating process is equal to or higher than 0 and equal to or lower than v in a temperature rise model of the heat exchanger equipment e Flow constraints among constraints as solving objective functions, where v e Is the rated flow of the water circulation device. And finally, solving the minimum value of the total power consumption of the water circulation device according to the constraint condition and the objective function.
And the water circulation device energy consumption model only has the water circulation device power consumption sum W and the flow function which are unknown, so that after the minimum value of the water circulation device power consumption sum is solved, substituting the solved minimum value of the water circulation device power consumption sum into the water circulation device energy consumption model, and obtaining the flow function regulated by the water circulation device. And according to the flow function, determining the flow regulated and controlled by the water circulation device to the heat exchanger equipment.
For example, the flow constraint: v is more than or equal to 0 and less than or equal to 100, and the water temperature constraint condition is as follows: t (T) Storage device ≤T Water and its preparation method ≤T Is provided with According to the temperature records of Table 1, the water temperatures of 14:00 and 3:00 are constrained to be 10.ltoreq.T, respectively Water and its preparation method More than or equal to 30 and less than or equal to 0 and less than or equal to T Water and its preparation method And is less than or equal to 10. Finally, the flow function v of the water circulation device corresponding to MIN (W) at 3:00 is obtained 1 (t)＝22-t,t∈(14,16)，v 2 (t)＝4sin(1.5t+2),t∈(14,14.9)，v 3 (t) = -sqrt (5 t) +10, t e (14,15.3) and MIN (W) corresponding water circulation device flow function v at 14:00 1 (t)＝-0.3t 2 -2t+18,t∈(3,5.1)，v 2 (t)＝7/t+3,t∈(3,4.4)，v 3 (t) =0, where v 1 Regulating and controlling the flow of circulating water to the photovoltaic plate heat exchanger for the water circulating device, v 2 Regulating and controlling water circulation deviceFlow of heat exchanger of energy storage device, v 3 The flow rate to the frequency converter/inverter heat exchanger is regulated for the water circulation device.
In the embodiment, under the condition that the total power consumption of the water circulation device is minimum, the flow regulated and controlled by the water circulation device to the heat exchanger equipment is calculated, and the heat exchanger is regulated and controlled, so that the energy and resource conservation is effectively realized.
After determining the regulation mode and the flow rate of the circulating water regulated by the water circulation device to the heat exchanger equipment, the temperature of the heat exchanger equipment can be regulated, that is, step S103 is executed, and the temperature of the heat exchanger equipment is regulated according to the regulation mode and the flow rate regulated by the water circulation device to the heat exchanger equipment.
For example, if the regulation mode of the photovoltaic plate heat exchanger is the first heating mode under the staged regulation mode, the hot water circulation device is controlled to supply water to the water inlet end of the corresponding heat exchanger device at the flow rate when the power consumption sum of the water circulation device is the minimum value, and the photovoltaic plate heat exchanger is heated, so that the temperature of the photovoltaic plate heat exchanger is regulated. And if the regulation mode of the heat exchanger of the energy storage device is a cooling mode under the staged regulation mode, controlling the cold water circulation device to introduce cold water in the cold water storage device to the water inlet end of the corresponding heat exchanger device at the flow rate when the power consumption sum of the water circulation device is minimum.
The above describes the method of the present application and in order to better carry out the method of the present application, the temperature regulation means of the heat exchanger device of the present application are described next.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a temperature regulation apparatus of a heat exchanger device according to an embodiment of the present application. As shown in fig. 6, the temperature regulating device 60 of the heat exchanger apparatus includes:
regulation mode determination module 601: the method comprises the steps of acquiring the real-time temperature of heat exchanger equipment and the real-time temperature of circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water and a temperature threshold of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result.
The flow determination module 602: the method is used for establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model, and determining the flow rate regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model.
Temperature regulation module 603: and the temperature control device is used for controlling the temperature of the heat exchanger equipment according to the control mode and the flow rate of the water circulation device to the heat exchanger equipment.
In one possible design, the regulation mode determining module 601 is specifically configured to:
when the real-time temperature of the heat exchanger equipment is smaller than the heating start threshold, determining the regulation mode as a first heating mode in a staged regulation mode; the first heating mode is that the hot water circulation device supplies water to the water inlet end of the corresponding heat exchanger device;
when the real-time temperature of the heat exchanger equipment is greater than the cooling start threshold, determining the regulation mode as a cooling mode in the staged regulation mode; the cooling mode is that the cold water circulation device is used for introducing cold water in the cold water storage device to the water inlet end of the corresponding heat exchanger equipment;
determining the regulation mode as a second heating mode in the staged regulation mode when a heating start threshold is less than a circulating water real-time temperature, the circulating water real-time temperature is less than a heat exchanger device real-time temperature, and the heat exchanger device real-time temperature is less than the cooling start threshold; the second heating mode is that the hot water circulating device is used for introducing water which is not heated completely in the hot water storage device to the water inlet end of the corresponding heat exchanger device.
In one possible design, the regulation mode determining module 601 is specifically configured to:
When the real-time temperature of the heat exchanger equipment reaches the heating start threshold corresponding to the heat exchanger equipment at night or in winter, determining the regulation mode as a first mode under a classification regulation mode, wherein the first mode under the classification regulation mode is that hot water in the hot water circulation device is injected into the heat exchanger equipment to heat the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is greater than the heating start threshold and the temperature of heated water injected into the heat exchanger equipment is reduced to a preset temperature;
and in the daytime, when the real-time temperature of the heat exchanger equipment reaches the cooling start threshold corresponding to the heat exchanger equipment, determining the regulation mode as a second mode in the classification regulation mode, wherein the second mode in the classification regulation mode is to inject cold water in a cold water storage device or water which is not heated in a hot water circulating device into the heat exchanger equipment to cool the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is smaller than the cooling start threshold and the temperature of cooling water injected into the heat exchanger equipment is increased to a preset temperature.
In one possible design, the flow determination module 602 is specifically configured to:
And building a temperature rise model of the heat exchanger equipment according to a functional relation formed by the circulating water flow, the circulating water supply time, the real-time temperature of the heat exchanger equipment, the temperature threshold of the heat exchanger equipment, the real-time temperature of the circulating water and the real-time air temperature.
In one possible design, the flow determination module 602 is specifically configured to:
and establishing an energy consumption model of the water circulation device according to the rated power of the water circulation device, the rated flow of the water circulation device, the basic loss power of the water circulation device, the flow function of the water circulation device, the starting operation time of the water circulation device and the time of the water circulation device reaching the corresponding temperature threshold value of the heat exchanger equipment.
In one possible design, the flow determination module 602 is specifically configured to:
establishing an objective function of the total power consumption of the water circulation device, and solving the minimum value of the total power consumption of the water circulation device according to the temperature rise model of the heat exchanger equipment and the objective function; the objective function is used for obtaining the minimum value of the total power consumption of the water circulation device;
substituting the solved minimum value of the total power consumption of the water circulation device into the water circulation device energy consumption model, and determining a flow function regulated and controlled by the water circulation device;
And determining the flow regulated and controlled to the heat exchanger equipment by the water circulation device according to the flow function.
In one possible design, the flow determination module 602 is specifically configured to:
and determining constraint conditions for solving the objective function according to the heat exchanger equipment temperature rise model, and solving the minimum value of the power consumption sum of the water circulation device according to the constraint conditions and the objective function.
In the equipment, the embodiment of the invention has the following beneficial effects: the method comprises the steps of comparing the real-time temperature of heat exchanger equipment, the real-time temperature of circulating water and a temperature threshold value of the heat exchanger equipment, determining a regulation and control mode of the heat exchanger equipment, establishing a temperature rise model of the heat exchanger equipment and an energy consumption model of a water circulation device, and solving the problem that the water circulation device is used for regulating and controlling the flow rate of the heat exchanger equipment under the condition that the total power consumption of the water circulation device is minimum. And finally, regulating and controlling the flow to the heat exchanger equipment through the determined regulation and control mode and the determined water circulation device, and regulating and controlling the temperature of the heat exchanger equipment. Under the condition that the total power consumption of the water circulation device is minimum, the flow regulated and controlled by the water circulation device to the heat exchanger equipment is calculated to regulate and control the heat exchanger equipment, so that the energy and resource conservation is effectively realized.
FIG. 7 illustrates an internal block diagram of a computer device in one embodiment. The computer device may specifically be a terminal or a server. As shown in fig. 7, the computer device includes a processor, a memory, and a network interface connected by a system bus. The memory includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system, and may also store a computer program which, when executed by a processor, causes the processor to implement the steps of the method embodiments described above. The internal memory may also have stored therein a computer program which, when executed by a processor, causes the processor to perform the steps of the method embodiments described above. It will be appreciated by those skilled in the art that the structure shown in fig. 7 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is presented comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of:
Acquiring the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water and a temperature threshold value of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result;
establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model of the heat exchanger equipment, and determining the flow rate regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model; the heat exchanger equipment temperature rise model is used for solving the mathematical relationship between circulating water flow and circulating water supply time; the water circulation device energy consumption model is a mathematical relationship between the total power consumption of the water circulation device and a flow function of the water circulation device; the water circulation device comprises at least one of a hot water circulation device and a cold water circulation device; the circulating water refers to water used for heating or cooling the heat exchanger equipment in the water circulating device;
and regulating and controlling the temperature of the heat exchanger equipment according to the regulation and control mode and the flow rate regulated and controlled by the water circulation device.
In one embodiment, a computer-readable storage medium is provided, storing a computer program which, when executed by a processor, causes the processor to perform the steps of:
acquiring the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water and a temperature threshold value of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result;
establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model of the heat exchanger equipment, and determining the flow rate regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model; the heat exchanger equipment temperature rise model is used for solving the mathematical relationship between circulating water flow and circulating water supply time; the water circulation device energy consumption model is a mathematical relationship between the total power consumption of the water circulation device and a flow function of the water circulation device; the water circulation device comprises at least one of a hot water circulation device and a cold water circulation device; the circulating water refers to water used for heating or cooling the heat exchanger equipment in the water circulating device;
And regulating and controlling the temperature of the heat exchanger equipment according to the regulation and control mode and the flow rate regulated and controlled by the water circulation device.
Those skilled in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a non-volatile computer readable storage medium, and where the program, when executed, may include processes in the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (8)

1. A method of temperature regulation of a heat exchanger apparatus, the method comprising:
acquiring the real-time temperature of the heat exchanger equipment and the real-time temperature of the circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water and a temperature threshold value of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result;
Establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model, and determining the flow regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model; the heat exchanger equipment temperature rise model is used for solving the mathematical relationship between circulating water flow and circulating water supply time; the water circulation device energy consumption model is a mathematical relationship between the total power consumption of the water circulation device and a flow function of the water circulation device; the water circulation device comprises at least one of a hot water circulation device and a cold water circulation device; the circulating water refers to water used for heating or cooling the heat exchanger equipment in the water circulating device;
regulating and controlling the temperature of the heat exchanger equipment according to the regulation and control mode and the flow rate regulated and controlled by the water circulation device;
the heat exchanger equipment temperature threshold is divided into a heating start threshold and a cooling start threshold, and the determining the regulation mode of the heat exchanger equipment according to the comparison result comprises the following steps:
when the real-time temperature of the heat exchanger equipment is smaller than the heating start threshold, determining the regulation mode as a first heating mode in a staged regulation mode; the first heating mode is that the hot water circulation device supplies water to the water inlet end of the corresponding heat exchanger device;
When the real-time temperature of the heat exchanger equipment is greater than the cooling start threshold, determining the regulation mode as a cooling mode in the staged regulation mode; the cooling mode is that the cold water circulation device is used for introducing cold water in the cold water storage device to the water inlet end of the corresponding heat exchanger equipment;
determining the regulation mode as a second heating mode in the staged regulation mode when a heating start threshold is less than a circulating water real-time temperature, the circulating water real-time temperature is less than a heat exchanger device real-time temperature, and the heat exchanger device real-time temperature is less than the cooling start threshold; the second heating mode is that the hot water circulating device is used for introducing water which is not fully heated in the hot water storage device to the water inlet end of the corresponding heat exchanger device;
the determining the regulation mode of the heat exchanger equipment according to the comparison result further comprises:
when the real-time temperature of the heat exchanger equipment reaches the heating start threshold corresponding to the heat exchanger equipment at night or in winter, determining the regulation mode as a first mode under a classification regulation mode, wherein the first mode under the classification regulation mode is that hot water in the hot water circulation device is injected into the heat exchanger equipment to heat the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is greater than the heating start threshold and the temperature of heated water injected into the heat exchanger equipment is reduced to a preset temperature;
And in the daytime, when the real-time temperature of the heat exchanger equipment reaches the cooling start threshold corresponding to the heat exchanger equipment, determining the regulation mode as a second mode in the classification regulation mode, wherein the second mode in the classification regulation mode is to inject cold water in a cold water storage device or water which is not heated in a hot water circulation device into the heat exchanger equipment to cool the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is smaller than the cooling start threshold and the temperature of cooling water injected into the heat exchanger equipment is increased to a preset temperature.
2. The method of claim 1, wherein the modeling the heat exchanger apparatus temperature rise comprises:
and building a temperature rise model of the heat exchanger equipment according to a functional relation formed by the circulating water flow, the circulating water supply time, the real-time temperature of the heat exchanger equipment, the temperature threshold of the heat exchanger equipment, the real-time temperature of the circulating water and the real-time air temperature.
3. The method of claim 1, wherein the modeling the water circulation device energy consumption comprises:
and establishing an energy consumption model of the water circulation device according to the rated power of the water circulation device, the rated flow of the water circulation device, the basic loss power of the water circulation device, the flow function of the water circulation device, the starting operation time of the water circulation device and the time of the water circulation device reaching the corresponding temperature threshold value of the heat exchanger equipment.
4. The method according to claim 1, wherein determining, based on the heat exchanger apparatus temperature rise model and the water circulation device energy consumption model, that the water circulation device regulates the flow rate to the heat exchanger apparatus with the water circulation device electricity consumption sum being minimum comprises:
establishing an objective function of the total power consumption of the water circulation device, and solving the minimum value of the total power consumption of the water circulation device according to the temperature rise model of the heat exchanger equipment and the objective function; the objective function is used for obtaining the minimum value of the total power consumption of the water circulation device;
substituting the solved minimum value of the total power consumption of the water circulation device into the water circulation device energy consumption model, and determining a flow function regulated and controlled by the water circulation device;
and determining the flow regulated and controlled to the heat exchanger equipment by the water circulation device according to the flow function.
5. The method of claim 4, wherein solving for a minimum of a total power consumption of the water circulation device based on the heat exchanger device temperature rise model and the objective function comprises:
and determining constraint conditions for solving the objective function according to the heat exchanger equipment temperature rise model, and solving the minimum value of the power consumption sum of the water circulation device according to the constraint conditions and the objective function.
6. A temperature regulation apparatus for a heat exchanger device, the apparatus comprising:
the regulation and control mode determining module: the method comprises the steps of acquiring real-time temperature of heat exchanger equipment and real-time temperature of circulating water, comparing the real-time temperature of the heat exchanger equipment, the real-time temperature of the circulating water with a temperature threshold of the heat exchanger equipment, and determining a regulation and control mode of the heat exchanger equipment according to a comparison result;
the flow determination module: the method comprises the steps of establishing a heat exchanger equipment temperature rise model and a water circulation device energy consumption model, and determining the flow rate regulated and controlled to the heat exchanger equipment by the water circulation device under the condition that the total power consumption of the water circulation device is minimum according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model; the temperature threshold of the heat exchanger equipment is divided into a heating start threshold and a cooling start threshold, and when the real-time temperature of the heat exchanger equipment is smaller than the heating start threshold, the regulation mode is determined to be a first heating mode in a staged regulation mode; the first heating mode is that the hot water circulation device supplies water to the water inlet end of the corresponding heat exchanger device; when the real-time temperature of the heat exchanger equipment is greater than the cooling start threshold, determining the regulation mode as a cooling mode in the staged regulation mode; the cooling mode is that the cold water circulation device is used for introducing cold water in the cold water storage device to the water inlet end of the corresponding heat exchanger equipment; determining the regulation mode as a second heating mode in the staged regulation mode when a heating start threshold is less than a circulating water real-time temperature, the circulating water real-time temperature is less than a heat exchanger device real-time temperature, and the heat exchanger device real-time temperature is less than the cooling start threshold; the second heating mode is that the hot water circulating device is used for introducing water which is not fully heated in the hot water storage device to the water inlet end of the corresponding heat exchanger device; when the real-time temperature of the heat exchanger equipment reaches the heating start threshold corresponding to the heat exchanger equipment at night or in winter, determining the regulation mode as a first mode under a classification regulation mode, wherein the first mode under the classification regulation mode is that hot water in the hot water circulation device is injected into the heat exchanger equipment to heat the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is greater than the heating start threshold and the temperature of heated water injected into the heat exchanger equipment is reduced to a preset temperature; during daytime, when the real-time temperature of the heat exchanger equipment reaches the cooling start threshold corresponding to the heat exchanger equipment, determining the regulation mode as a second mode in a classification regulation mode, wherein the second mode in the classification regulation mode is to inject cold water in a cold water storage device or water which is not heated in a hot water circulation device into the heat exchanger equipment to cool the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is smaller than the cooling start threshold and the temperature of cooling water injected into the heat exchanger equipment is increased to a preset temperature;
And a temperature regulation module: and the temperature control device is used for controlling the temperature of the heat exchanger equipment according to the control mode and the flow rate of the water circulation device to the heat exchanger equipment.
7. A computer readable storage medium storing a computer program, which when executed by a processor causes the processor to perform the steps of the method according to any one of claims 1 to 5.
8. A computer device comprising a memory and a processor, wherein the memory stores a computer program which, when executed by the processor, causes the processor to perform the steps of the method of any of claims 1 to 5.
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