CN114675690A - 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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CN114675690A
CN114675690A CN202210297770.1A CN202210297770A CN114675690A CN 114675690 A CN114675690 A CN 114675690A CN 202210297770 A CN202210297770 A CN 202210297770A CN 114675690 A CN114675690 A CN 114675690A
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heat exchanger
water
temperature
exchanger equipment
circulation device
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CN114675690B (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)
  • Automation & Control Theory (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The embodiment of the invention provides a temperature regulation and control method and a temperature regulation and control device of heat exchanger equipment, wherein the temperature regulation and control method of the heat exchanger equipment comprises the following steps: the method comprises the steps of obtaining 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 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 that the water circulation device regulates and controls the flow of the heat exchanger equipment under the condition that the sum of the 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 regulated and controlled by the water circulation device to the heat exchanger equipment. And the energy conservation is realized by determining the flow when the sum of the 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, in particular to a temperature regulation method and device of heat exchanger equipment.
Background
The landform of the high-altitude area is complex, the power grid construction is difficult and slow to develop, meanwhile, the regional economy is fast in development, the power consumption is increased rapidly, and the contradiction between the increasing power consumption demand of people and the power supply quality is inevitable. 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 consumption and power supply reliability by combining an energy storage system to establish a micro-grid. However, the climate and environment in high-sea areas are severe, the safety and the operating efficiency of microgrid equipment are affected, for example, the temperature difference between day and night affects the sealing performance of the energy storage battery, for example, frost and dew can reduce the power generation efficiency of the photovoltaic panel, and for example, the low temperature at night can reduce the capacity of the energy storage battery. Therefore, the micro-grid equipment operation temperature is regulated and controlled, and the micro-grid equipment operation temperature control method plays an extremely important role in the reliability and the economy of a grid system. Therefore, a solution to the problems of comprehensive temperature regulation and energy recovery of high-altitude microgrid equipment is needed.
Disclosure of Invention
The invention mainly aims to provide a temperature regulation and control method and a temperature regulation and control device for heat exchanger equipment, which can solve the problem of excessive power consumption during temperature regulation and control in the prior art.
To achieve the above object, a first aspect of the present invention provides a temperature control method for a heat exchanger apparatus, the method comprising:
the method comprises the steps of obtaining 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 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 that the water circulation device regulates and controls the flow of the heat exchanger equipment under the condition that the sum of the 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 relation between the circulating water flow and the circulating water supply time; the energy consumption model of the water circulation device is a mathematical relation between the sum of the 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 is water used for heating or cooling 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 regulated and controlled by the water circulation device to the heat exchanger equipment.
In the technical scheme, 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 are compared to determine a regulation mode 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 established, and the water circulation device is used for regulating and controlling the flow of the heat exchanger equipment under the condition that the sum of the power consumption of the water circulation device is minimum. And finally, regulating and controlling the temperature of the heat exchanger equipment by regulating and controlling the flow to the heat exchanger equipment through the determined regulation and control mode and the determined water circulation device. Under the condition that the sum of the power consumption of the water circulation device is minimum, the flow of the water circulation device for regulating and controlling the heat exchanger equipment is calculated to regulate and control the heat exchanger equipment, and the energy and resource conservation is effectively realized.
With reference to the first aspect, in a possible implementation manner, the establishing a heat exchanger equipment temperature rise model includes:
and establishing a temperature rise model of the heat exchanger equipment according to a functional relation formed by the flow rate of circulating water, the water supply time of the circulating water, 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 temperature.
With reference to the first aspect, in a possible implementation manner, the establishing an energy consumption model of a water circulation device 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, a flow function of the water circulation device, the time for the water circulation device to start to operate and the time for the temperature of the water circulation device to reach the corresponding temperature threshold of the heat exchanger equipment.
With reference to the first aspect, in a possible implementation manner, the determining, according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model, that the water circulation device regulates and controls the flow rate to the heat exchanger equipment when the sum of the power consumptions 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 heat exchanger equipment temperature rise model and the objective function; the objective function is used for solving the minimum value of the sum of the power consumptions of the water circulation devices;
substituting the minimum value of the sum of the power consumptions of the water circulation device into the energy consumption model of the water circulation device, and determining a flow function regulated and controlled by the water circulation device;
and determining the flow regulated and controlled by the water circulation device to the heat exchanger equipment according to the flow function.
With reference to the first aspect, in a possible implementation manner, the solving of the minimum value of the sum of power consumptions of the water circulation device according to the heat exchanger equipment temperature rise model and the objective function includes:
and determining a constraint condition for solving the objective function according to the heat exchanger equipment temperature rise model, and solving the minimum value of the total power consumption of the water circulation device according to the constraint condition and the objective function.
With reference to the first aspect, in a possible implementation manner, the dividing the temperature threshold of the heat exchanger device into a heating start threshold and a cooling start threshold, and determining the regulation and control mode of the heat exchanger device according to the comparison result includes:
when the real-time temperature of the heat exchanger equipment is smaller than the heating starting threshold value, determining the regulation mode as a first heating mode in a staged regulation mode; the first heating mode is that the hot water circulating 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 starting threshold value, determining the regulation mode as a cooling mode in the staged regulation mode; the cooling mode is that the cold water circulating device leads cold water in the cold water storage device to the water inlet end of the corresponding heat exchanger equipment;
when a heating start threshold value is smaller than a circulating water real-time temperature, the circulating water real-time temperature is smaller than the heat exchanger equipment real-time temperature, and the heat exchanger equipment real-time temperature is smaller than the cooling start threshold value, determining the regulation and control mode as a second heating mode in the staged regulation and control mode; and the second heating mode is that the hot water circulating device leads water which is not completely heated in the hot water storage device to the water inlet end of the corresponding heat exchanger equipment.
With reference to the first aspect, in a possible implementation manner, the above temperature threshold of the heat exchanger device is divided into a heating start threshold and a cooling start threshold, and the determining, according to the comparison result, a regulation and control mode of the heat exchanger device further includes:
at night or in winter, when the real-time temperature of the heat exchanger equipment reaches the heating starting threshold corresponding to the heat exchanger equipment, determining the regulation mode as a first mode in a classified regulation mode, wherein the first mode in the classified regulation mode is that hot water in the hot water circulating 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 starting threshold and the temperature of the 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 starting threshold value corresponding to the heat exchanger equipment, determining the regulation mode as a second mode in a classified regulation mode, wherein the second mode in the classified regulation mode is that cold water in a cold water storage device or water which is not completely heated in a hot water circulating device is injected into the heat exchanger device to cool the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is less than the cooling starting threshold value and the water temperature of the cooling water injected into the heat exchanger equipment is increased to a preset temperature.
In order to achieve the above object, a second aspect of the present invention provides a temperature regulating device of a heat exchanger apparatus, the device comprising:
a regulation mode determination module: the system comprises a control module, a control module and a control module, wherein the control module is used for 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 value of the heat exchanger equipment, and determining the regulation and control mode of the heat exchanger equipment according to the comparison result;
a flow determination module: the system comprises a heat exchanger equipment temperature rise model, a water circulation device energy consumption model, a water circulation device and a control module, wherein the heat exchanger equipment temperature rise model and the water circulation device energy consumption model are established;
a temperature regulation module: and the water circulation device is used for regulating and controlling the flow to the heat exchanger equipment according to the regulation and control mode and the flow regulated and controlled by the water circulation device, and regulating and controlling the temperature of 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:
the method comprises the steps of obtaining 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 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 that the water circulation device regulates and controls the flow of the heat exchanger equipment under the condition that the sum of the 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 relation between the circulating water flow and the circulating water supply time; the energy consumption model of the water circulation device is a mathematical relation between the sum of the power consumption of the water circulation device and a flow function of the water circulation device; the water circulating device comprises at least one of a hot water circulating device and a cold water circulating device, and the circulating water is 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 regulated and controlled by the water circulation device to the heat exchanger equipment.
To achieve the above object, a fourth aspect of the present invention provides a computer apparatus comprising a memory and a processor, the memory storing a computer program, the computer program, when executed by the processor, causing the processor to perform the steps of:
the method comprises the steps of obtaining 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 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 that the water circulation device regulates and controls the flow of the heat exchanger equipment under the condition that the sum of the 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 relation between the circulating water flow and the circulating water supply time; the energy consumption model of the water circulation device is a mathematical relation between the sum of the power consumption of the water circulation device and a flow function of the water circulation device; the water circulating device comprises at least one of a hot water circulating device and a cold water circulating device, and the circulating water is 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 regulated and controlled by the water circulation device to the heat exchanger equipment.
The embodiment of the invention has the following beneficial effects: the method comprises the steps of 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, determining a regulation mode of the heat exchanger equipment, establishing a temperature rise model of the heat exchanger equipment and an energy consumption model of the water circulation device, and solving the problem that the water circulation device is used for regulating and controlling the flow of the heat exchanger equipment under the condition that the sum of the power consumption of the water circulation device is minimum. And finally, regulating and controlling the temperature of the heat exchanger equipment by regulating and controlling the flow of the heat exchanger equipment through the determined regulation and control mode and the determined water circulation device. Under the condition that the sum of the power consumption of the water circulation device is minimum, the water circulation device is calculated and used for regulating and controlling the flow of the water circulation device to the heat exchanger equipment, and therefore the energy and resource are effectively saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Wherein:
FIG. 1 is a schematic diagram of a temperature regulation system of a heat exchanger apparatus according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart of a method for regulating temperature of a heat exchanger apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method for establishing a heat exchanger temperature rise model of a heat exchanger device according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a method for modeling energy consumption of a water circulation device according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating a process for determining the flow rate that a water circulation device regulates to a heat exchanger apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic structural 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 according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 present application provides a temperature control system of heat exchanger equipment, referring to fig. 1, fig. 1 is a temperature control system of heat exchanger equipment, and the system includes: a hydropower station 101, a cold water storage device 102, a cold water circulation device 103, a hot water circulation device 104, a circulating water heating device 105, a hot water storage device 106, an energy storage device heat exchanger 107, a photovoltaic panel heat exchanger 108, a frequency converter/inverter heat exchanger 109, and furthermore, the hot water storage device 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 a diameter of 300mm, a flow control valve and a temperature sensor are mounted 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 adopt the same set of running water heat exchange device for cooling and heating, the cooling and heating heat exchange modes are carried out in different time periods, the cold water circulating 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 pipelines 2, and the cooling water supply pipeline 2 can adopt three sets of white steel pipe pipelines with the diameter 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 circulating device 104 is 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 a hot water supply pipeline 5, and the pipeline 5 can adopt three groups of heat preservation pipelines with the diameter of 100mm and is provided with a flow control valve, a temperature sensor and a flow sensor. In the cooling water return pipeline, a water inlet end of the hot water storage device 106 is connected with a water outlet end of the energy storage device heat exchanger 107, a water outlet end of the photovoltaic panel heat exchanger 108 and a 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 the diameter of phi 100mm and is provided with a temperature sensor and a switch valve, 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, a water inlet end of the hot water storage device 106 is respectively connected with a water outlet end of the energy storage device heat exchanger 107, a water outlet end of the photovoltaic panel heat exchanger 108 and a water outlet end of the frequency converter/inverter heat exchanger 109 through a hot water return pipeline 7, and the pipeline 7 can adopt a heat preservation pipeline with the diameter of phi 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 circulating device 104 through a pipeline 4, and the pipeline 4 can be a thermal insulation pipeline pipe with the diameter of 300 mm. The water outlet end of the hot water circulating 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 pipeline with the diameter of 100mm and is connected with a water storage side water pool of the hydropower station and is provided with a flow control valve and a flow sensor. The temperature sensors are arranged on the electrical equipment bodies such as the energy storage equipment heat exchanger 107, the photovoltaic plate heat exchanger 108 and the frequency converter/inverter heat exchanger 109, the temperature sensors arranged on the electrical equipment bodies such as the energy storage equipment heat exchanger 107, the photovoltaic plate heat exchanger 108 and the frequency converter/inverter heat exchanger 109 and the temperature sensors comprising the system all purchase PT100 temperature measuring resistors and collecting equipment.
With reference to fig. 2, fig. 2 is a schematic flow chart diagram of a temperature regulation method for a heat exchanger device, and as shown in the diagram, the method specifically includes:
s101, 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 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.
Step S102, a heat exchanger equipment temperature rise model and a water circulation device energy consumption model are established, and according to the heat exchanger equipment temperature rise model and the water circulation device energy consumption model, the water circulation device is determined to regulate and control the flow of the heat exchanger equipment under the condition that the sum of the power consumption of the water circulation device is minimum.
And S103, regulating and controlling the temperature of the heat exchanger equipment according to the regulation and control mode and the flow regulated and controlled by the water circulation device.
The heat exchanger equipment temperature rise model is used for solving a mathematical relation between circulating water flow and circulating water supply time, the water circulating device energy consumption model is a mathematical relation between the sum of power consumption of the water circulating device and a flow function of the water circulating device, the water circulating device comprises at least one of a hot water circulating device and a cold water circulating device, and the circulating water is water used for heating or cooling the heat exchanger equipment in the water circulating device.
Firstly, introducing the step S101, acquiring the real-time temperature of the 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 value of the heat exchanger equipment, and determining the regulation and control mode of the heat exchanger equipment according to the comparison result.
In this embodiment, the real-time temperature of the heat exchanger equipment is obtained by the temperature sensor installed on the body of the heat exchanger equipment, and the real-time temperature of the circulating water is acquired by the temperature sensors on all the pipelines 2 and 5. In addition, this embodiment still adopts system monitoring device to gather in real time and measure regulation and control system temperature, water yield and weather temperature TQi (Qi). Since there may be more than one heat exchanger unit, real time temperatures may be obtained for multiple heat exchanger units. In this embodiment, the heat exchanger device includes an energy storage device heat exchanger, a photovoltaic panel heat exchanger, and a converter/inverter heat exchanger, and thus the obtained real-time temperature of the heat exchanger device includes a real-time temperature T of the energy storage device heat exchangerCReal-time temperature T of photovoltaic plate heat exchangerGReal-time temperature T of heat exchanger of frequency converter/inverterBIn particularThe data may be as shown in table 1:
TABLE 1
Figure BDA0003558925490000081
Because different heat exchanger equipment performance is different, consequently, to different heat exchanger equipment, the real-time temperature of heat exchanger equipment, the circulating water real-time temperature that this embodiment adopted different heat exchanger equipment temperature threshold and correspond compares. In this embodiment, judge that heat exchanger equipment needs to adopt cooling water cooling to realize its cooling or need adopt hot water heating to realize its cooling, have different judgement standards, therefore heat exchanger equipment temperature threshold divide into and heat the start threshold value and cool off the start threshold value. Different temperature thresholds of the heat exchanger equipment can be determined according to different conditions based on the corresponding heat exchanger equipment, for example, for the heat exchanger of the energy storage equipment, the optimal operating temperature range can be determined according to the type and the material of the photovoltaic panel of the energy storage battery, and the minimum temperature value is determined as the heating starting threshold T of the heat exchanger of the energy storage equipmentCminThe maximum value is set as the cooling starting threshold value T of the heat exchanger of the energy storage equipmentCmax(ii) a For the photovoltaic plate heat exchanger, the surface dew point average value of the photovoltaic plate heat exchanger can be counted according to the local environment, the climate and the surface structure of the photovoltaic plate heat exchanger, and the value is determined as the heating starting threshold value T of the photovoltaic plate heat exchangerGminCalculating the temperature value of the maximum power generation efficiency of the photovoltaic plate heat exchanger according to the model, the material and the aging condition of the photovoltaic plate, and determining the temperature value as the cooling dynamic threshold value T of the photovoltaic plate heat exchangerGmax(ii) a Similarly, for the frequency converter/inverter heat exchanger, the surface dew point average value of the frequency converter/inverter heat exchanger is counted according to the local environment, the climate and the surface structure of the frequency converter/inverter heat exchanger, and the value is determined as the heating starting threshold value T of the frequency converter/inverter heat exchangerBminDetermining a cooling dynamic threshold value T of the heat exchanger of the frequency converter/inverter according to the upper limit value of the operating temperature of the frequency converter/inverterBmax. Specific data can be shown in table 2:
TABLE 2
TGmin TGmax TCmin TCmax TBmin TBmax
5℃ 10℃ 20℃ 40℃ 10℃ 50℃
And 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 of the heat exchanger equipment is determined, further determining the regulation and control mode of the heat exchanger equipment according to the comparison results of the three. In this embodiment, the regulation mode is divided into a classification regulation mode and a staged regulation mode according to different comparison modes.
The regulation and control mode in the staged regulation and control mode specifically comprises the following steps:
and when the real-time temperature of the heat exchanger equipment is less than the heating starting threshold value, determining the regulation and control mode as a first heating mode in the staged regulation and control mode, wherein the first heating mode is that the hot water circulating 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 a cooling starting threshold value, determining the regulation mode as a cooling mode in a staged regulation mode, wherein the cooling mode is that a cold water circulating device leads cold water in a cold water storage device to a water inlet end of the corresponding heat exchanger equipment; when the heating starting threshold value is smaller than the real-time temperature of the circulating water, the real-time temperature of the circulating water is smaller than the real-time temperature of the heat exchanger equipment, and the real-time temperature of the heat exchanger equipment is smaller than the cooling starting threshold value, determining the regulation mode as a second heating mode in the staged regulation mode; and the second heating mode is that the hot water circulating device leads water which is not completely heated in the hot water storage device to the water inlet end of the corresponding heat exchanger equipment.
The regulation and control mode in the classification regulation and control mode specifically comprises the following steps:
and at night or in winter, when the real-time temperature of the heat exchanger equipment reaches a heating starting threshold corresponding to the heat exchanger equipment, determining the regulation mode as a first mode in a classified regulation mode, wherein the first mode in the classified regulation mode is that hot water in the hot water circulating 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 starting threshold and the temperature of the heated water injected into the heat exchanger equipment is reduced to a preset temperature. In the daytime, when the real-time temperature of the heat exchanger equipment reaches a cooling starting threshold value corresponding to the heat exchanger equipment, the regulation mode is determined to be a second mode in a classified regulation mode, the second mode in the classified regulation mode is that cold water in a cold water storage device or water which is not completely heated in a hot water circulating device is injected into the heat exchanger device to cool the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is smaller than the cooling starting threshold value and the temperature of the cooling water injected into the heat exchanger equipment is increased to a preset temperature, wherein the preset temperature can be determined according to actual conditions.
In particular, the real-time temperature T of the heat exchanger of the energy storage device is measured at night or in winterCReaching the heating start threshold T corresponding to the heat exchanger of the energy storage deviceCminWhen the temperature of the heat exchanger of the energy storage equipment is higher than T, the hot water circulating device is started to inject hot water of the hot water storage device into the heat exchanger of the energy storage equipment until the real-time temperature of the heat exchanger of the energy storage equipment is higher than TCminAnd the temperature of the heated water is reduced to the pre-heating valueSetting the temperature; real-time temperature T of heat exchanger of energy storage deviceCThe energy storage equipment reaches a cooling start threshold T corresponding to the heat exchanger of the energy storage equipmentCmaxWhen the temperature of the heat exchanger of the energy storage equipment is lower than T, the cold water circulating device is started to feed cold water in the cold water storage device to the water inlet end of the heat exchanger of the energy storage equipment or the hot water circulating device is started to feed water which is not completely heated in the hot water storage device to the water inlet end of the heat exchanger of the energy storage equipment until the temperature of the heat exchanger of the energy storage equipment is lower than TCmaxAnd the temperature of the cooling water is raised to a preset temperature.
Real-time temperature T of photovoltaic plate heat exchanger at night or in snowy weatherGReaching a heating start threshold T corresponding to the photovoltaic plate heat exchangerGminWhen the hot water circulating device is started, hot water of the hot water storage device is injected into the photovoltaic plate heat exchanger until the real-time temperature of the photovoltaic plate heat exchanger is greater than TGminThe temperature of the heated water is reduced to a preset temperature; in the daytime, the real-time temperature T of the photovoltaic plate heat exchangerGReaching a cooling start threshold T corresponding to the photovoltaic panel heat exchangerGmaxWhen the photovoltaic panel heat exchanger is started, the cold water circulating device is started to feed cold water in the cold water storage device to the water inlet end of the cold water circulating device or the hot water circulating device is started to feed water which is not completely heated in the hot water storage device to the water inlet end of the hot water circulating device until the real-time temperature of the photovoltaic panel heat exchanger is less than TGmaxAnd the temperature of the cooling water is raised to a preset temperature.
In night or winter weather, the real-time temperature T of the heat exchanger of the frequency converter/inverterBReaching the heating start threshold T corresponding to the heat exchanger of the frequency converter/the inverterBminWhen the temperature of the inverter/inverter heat exchanger is higher than T, the hot water circulating device is started to inject hot water of the hot water storage device into the inverter/inverter heat exchanger until the real-time temperature of the inverter/inverter heat exchanger is higher than TBminThe temperature of the heated water is reduced to a preset temperature; in daytime, the real-time temperature T of the heat exchanger of the frequency converter/inverterBThe energy storage equipment reaches the cooling start threshold T of the heat exchanger of the frequency converter/inverterBmaxWhen the temperature of the frequency converter/inverter heat exchanger is lower than T, the cold water circulating device is started to feed cold water in the cold water storage device to the water inlet end of the frequency converter/inverter heat exchanger or the hot water circulating device is started to feed water which is not completely heated in the hot water storage device to the water inlet end of the frequency converter/inverter heat exchanger until the temperature of the frequency converter/inverter heat exchanger is lower than TBmaxAnd is cooledThe temperature of the water is raised to a preset temperature.
For example, referring to the data in tables 1 and 2, at 14:00, the real-time temperature T of the photovoltaic panel heat exchangerGIs 30 ℃ higher than the cooling start threshold T of the photovoltaic plate heat exchangerGmaxCooling is needed at 10 ℃, and a cold water circulating 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 hours, the real-time temperature T of the photovoltaic plate heat exchangerGIs 0 ℃ lower than the cooling start threshold T of the photovoltaic plate heat exchangerGminAnd 5 ℃, controlling the hot water circulating device to supply water to the water inlet end of the photovoltaic plate heat exchanger.
According to the embodiment, the real-time temperature of the heat exchanger equipment and the real-time temperature of circulating water are acquired in real time, the real-time temperature and the real-time temperature of circulating water are compared with the temperature threshold of the heat exchanger equipment, the regulation and control mode of the heat exchange gas equipment is determined according to the comparison result in real time, and temperature detection and temperature regulation and control can be effectively and timely carried out on the heat exchanger equipment.
In the above description, how to determine the regulation mode is described, step S102 is described, a heat exchanger equipment temperature rise model and a water circulation device energy consumption model are established, and 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 sum of the power consumption of the water circulation device is minimum.
The heat exchanger equipment temperature rise model is used for solving the mathematical relationship between the circulating water flow and the circulating water supply time, the water circulating device energy consumption model is the mathematical relationship between the sum of the power consumption of the water circulating device and the flow function of the water circulating device, and the circulating water is water used for heating or cooling the heat exchanger equipment in the water circulating 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 heat exchanger equipment provided in this embodiment, and as shown in fig. 3, the temperature rise model of heat exchanger equipment may be established in the following manner:
and S1021, establishing a temperature rise model of the heat exchanger equipment according to a functional relation formed by the flow rate of circulating water, the water supply time of the circulating water, 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 temperature.
The method specifically comprises the following steps:
vt＝(Tis provided with-Tm)k/(TIs provided with-TWater (W)j-TQi (Qi)i)
Wherein v is the circulating water flow; t is the water supply time of the circulating water; t is a unit ofIs provided withReal-time temperature for heat exchanger equipment; t ismIs a heat exchanger equipment temperature threshold; t isWater (W)Real-time temperature of circulating water; t isQi (Qi)The 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 equipment, and i is a heat exchange coefficient between air and the heat exchanger equipment, and the three can be set to be equivalent empirical values or set values according to the running conditions of the heat exchanger equipment.
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 panel heat exchanger is determined to be vt-5 (T)Is provided with-Tm)/(TIs provided with-TWater (W)1.5-TQi (Qi)0.5). Similarly, j is determined to be 2, i is determined to be 0.8, k is determined to be 10 in the temperature rise model of the heat exchanger of the energy storage device, and the obtained temperature rise model of the heat exchanger of the energy storage device is vt-10 (T)Is provided with-Tm)/(TIs provided with-TWater (W)2-TQi (Qi)0.8), and j is 1.8, i is 0.6, k is 8 in the converter/inverter heat exchanger temperature rise model, the converter/inverter heat exchanger temperature rise model is obtained as vt-8 (T)Is provided with-Tm)/(TIs provided with-TWater (W)1.8-TQi (Qi)0.6)。
As can be seen from the above, TIs provided with、Tm、TQi (Qi)、TWater (W)All can obtain each temperature data according to the collection of instrument and equipment, and above four are known conditions promptly, correspond to substitute in heat exchanger equipment temperature rise model with above data, can obtain the product value of flow v and water supply time t, when cooling and heating heat exchanger equipment promptly, the water consumption that heat exchanger equipment required.
In the above, how the temperature rise model of the heat exchanger equipment is obtained is described, and the establishment of the energy consumption model of the water circulation device is described below, where the energy consumption model of the water circulation device is a mathematical relationship between the sum of the power consumption of the water circulation device and the flow function of the water circulation device, as shown in fig. 4, fig. 4 is a schematic flow chart of the method for establishing the energy consumption model of the water circulation device provided in this embodiment, and as shown in fig. 4, the energy consumption model of the water circulation device can be established in the following manner:
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 of the water circulation device, the basic power loss of the water circulation device, the flow function of the water circulation device, the time for the water circulation device to start operating and the time for the temperature of the water circulation device to reach the corresponding temperature threshold of the heat exchanger equipment.
The method comprises the following specific steps:
Figure BDA0003558925490000121
wherein W is the sum of the power consumption of the water circulation device; v. ofk(t) a kth water circulation device flow function; pekRated power for the kth water circulation device; v. ofekRated flow for the kth water circulation device; ckThe power loss for the kth water circulation device base; t is t0kFor the time of starting operation of the kth water circulation device, tmkFor the temperature of the kth water circulation device to reach the temperature threshold T of the heat exchanger equipmentmTime of (d).
In the present embodiment, the flow function v is calculated for conveniencek(t) setting the rated power P of all water circulation devicesekAnd rated flow vekThe energy consumption models of the water circulation device are respectively taken as 50kW and 100L/s fixed values, namely:
Figure BDA0003558925490000131
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 sum of the power consumption of the water circulation device is minimum, referring to fig. 5, fig. 5 is a schematic flow diagram for determining the flow rate to the heat exchanger equipment regulated and controlled by the water circulation device provided in this embodiment, and the specific steps are as follows:
and 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 heat exchanger equipment temperature rise model and the objective function.
And step S1024, substituting the minimum value of the solved power consumption sum of the water circulation device into the energy consumption model of the water circulation device, and determining the flow function of the regulated water circulation device.
And S1025, determining the flow rate of the water circulation device to the heat exchanger equipment according to the flow rate function.
Wherein the objective function is used for solving the minimum value of the sum of the power consumptions of the water circulation devices
In the present embodiment, the objective function is constructed as MIN { W (v) }1(t)、v2(t)、…、vk(t)、…、vn(t)) } which represents an equation of the total power consumption W with respect to a time function of the flow rates of the n water circulation devices, wherein n is the number of all the water circulation devices operated in the system, and the minimum value of the sum of the power consumption of the water circulation devices can be obtained through an objective function. Specifically, the constraint condition for solving the objective function is determined according to the heat exchanger equipment temperature rise model, the real-time temperature of the circulating water and the flow rate of the circulating water in the heat exchanger equipment temperature rise model are variables, so that the time T result is uncertain, and the T in the heat exchanger equipment temperature rise model is determinedWater (W)∈[TStore up，TIs provided with]As water temperature constraints among the constraints for solving the objective function, where TStore upIs the water storage temperature used in circulation, and v is more than or equal to 0 and less than or equal to v in the temperature rise model of the heat exchanger equipmenteAs a flow constraint among the constraints for solving the objective function, where veThe 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.
Because only the power consumption sum W of the water circulation device and the flow function are unknown quantities in the energy consumption model of the water circulation device, after the minimum value of the power consumption sum of the water circulation device is solved, the solved minimum value of the power consumption sum of the water circulation device is substituted into the energy consumption model of the water circulation device, and the flow function regulated and controlled by the water circulation device can be obtained. And determining the flow of the water circulation device to the heat exchanger equipment according to the flow function.
For example, the flow constraints are: 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 isStore up≤TWater (I)≤TIs provided withAccording to the temperature record of Table 1, the water temperature constraints of 14:00 and 3:00 are 10. ltoreq. TWater (I)T is not less than 30 and not more than 0Water (W)Less than or equal to 10. Finally, the flow function v of the water circulation device corresponding to MIN (W) at 3:00 hours is calculated1(t)＝22-t,t∈(14,16)，v2(t)＝4sin(1.5t+2),t∈(14,14.9)，v3(t) — sqrt (5t) +10, te (14,15.3) and 14:00 min (w) corresponding to the water circulation device flow function v1(t)＝-0.3t2-2t+18,t∈(3,5.1)，v2(t)＝7/t+3,t∈(3,4.4)，v3(t) 0, wherein v1Regulating the flow of circulating water, v, to the photovoltaic panel heat exchanger for a water circulating device2Regulating the flow, v, to the heat exchanger of the energy storage device for a water circulation device3The flow to the frequency converter/inverter heat exchanger is regulated for the water circulation device.
In the embodiment, the flow rate of the water circulation device for regulating and controlling the heat exchanger equipment is calculated under the condition that the sum of the power consumption of the water circulation device is minimum, the heat exchanger is regulated and controlled, and the energy and resources are effectively saved.
After the regulation and control mode and the flow rate of the circulating water, regulated and controlled by the water circulation device, to the heat exchanger equipment are determined, the temperature of the heat exchanger equipment can be regulated and controlled, that is, step S103 is executed, and the temperature of the heat exchanger equipment is regulated and controlled according to the regulation and control mode and the flow rate, regulated and controlled by the water circulation device, to the heat exchanger equipment.
For example, if the regulation mode of the photovoltaic panel heat exchanger is the first heating mode in 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 of the minimum value of the total power consumption of the water circulation device, so as to heat the photovoltaic panel heat exchanger, and the temperature of the photovoltaic panel heat exchanger is regulated. And if the regulation and control mode of the heat exchanger of the energy storage equipment is a cooling mode in a staged regulation and control mode, controlling the cold water circulating device to introduce cold water in the cold water storage device to the water inlet end of the corresponding heat exchanger equipment at the flow rate of the minimum value of the sum of the power consumptions of the water circulating device.
In order to better implement the method of the present application, the temperature regulating device of the heat exchanger apparatus of the present application is described next.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a temperature regulation device of a heat exchanger apparatus according to an embodiment of the present application. As shown in fig. 6, the temperature regulation device 60 of the heat exchanger apparatus includes:
the regulation mode determination module 601: the control system is used for acquiring the real-time temperature of the 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 value of the heat exchanger equipment, and determining the regulation and control mode of the heat exchanger equipment according to the 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 that the water circulation device regulates and controls the flow of the heat exchanger equipment under the condition that the sum of the 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 regulation module 603: and the water circulation device is used for regulating and controlling the flow to the heat exchanger equipment according to the regulation and control mode and the flow regulated and controlled by the water circulation device, and regulating and controlling the temperature of the heat exchanger equipment.
In a 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 starting threshold value, determining the regulation and control mode as a first heating mode in a staged regulation and control mode; the first heating mode is that the hot water circulating 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 starting threshold value, determining the regulation mode as a cooling mode in the staged regulation mode; the cooling mode is that the cold water circulating device leads cold water in the cold water storage device to the water inlet end of the corresponding heat exchanger equipment;
when a heating starting threshold value is smaller than a circulating water real-time temperature, the circulating water real-time temperature is smaller than the heat exchanger equipment real-time temperature, and the heat exchanger equipment real-time temperature is smaller than the cooling starting threshold value, determining the regulation and control mode as a second heating mode in the staged regulation and control mode; and the second heating mode is that the hot water circulating device leads water which is not completely heated in the hot water storage device to the water inlet end of the corresponding heat exchanger equipment.
In a possible design, the regulation mode determining module 601 is specifically configured to:
at night or in winter, when the real-time temperature of the heat exchanger equipment reaches the heating starting threshold corresponding to the heat exchanger equipment, determining the regulation mode as a first mode in a classified regulation mode, wherein the first mode in the classified regulation mode is that hot water in the hot water circulating 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 starting threshold and the temperature of the hot water injected into the heat exchanger equipment is reduced to a preset temperature;
in the daytime, when the real-time temperature of the heat exchanger equipment reaches the cooling starting threshold value corresponding to the heat exchanger equipment, the regulation mode is determined to be a second mode in a classified regulation mode, and the second mode in the classified regulation mode is that cold water in a cold water storage device or water which is not completely heated in a hot water circulating device is injected into the heat exchanger device to cool the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is smaller than the cooling starting threshold value and the water temperature of the 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 establishing a temperature rise model of the heat exchanger equipment according to a functional relation formed by the flow rate of circulating water, the water supply time of the circulating water, 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 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, a flow function of the water circulation device, the time for the water circulation device to start to operate and the time for the temperature of the water circulation device to reach the corresponding temperature threshold 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 heat exchanger equipment temperature rise model and the objective function; the objective function is used for solving the minimum value of the sum of the power consumptions of the water circulation devices;
substituting the minimum value of the total power consumption of the water circulation device into the energy consumption model of the water circulation device to determine a flow function regulated and controlled by the water circulation device;
and determining the flow regulated and controlled by the water circulation device to the heat exchanger equipment according to the flow function.
In one possible design, the flow determination module 602 is specifically configured to:
and determining a constraint condition for solving the objective function according to the heat exchanger equipment temperature rise model, and solving the minimum value of the total power consumption of the water circulation device according to the constraint condition and the objective function.
In the above device, the embodiment of the invention has the following beneficial effects: the method comprises the steps of 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, determining a regulation mode of the heat exchanger equipment, establishing a temperature rise model of the heat exchanger equipment and an energy consumption model of the water circulation device, and solving the problem that the water circulation device is used for regulating and controlling the flow of the heat exchanger equipment under the condition that the sum of the power consumption of the water circulation device is minimum. And finally, regulating and controlling the temperature of the heat exchanger equipment by regulating and controlling the flow of the heat exchanger equipment through the determined regulation and control mode and the determined water circulation device. Under the condition that the sum of the power consumption of the water circulation device is minimum, the flow of the water circulation device for regulating and controlling the heat exchanger equipment is calculated to regulate and control the heat exchanger equipment, and the energy and resource conservation is effectively realized.
FIG. 7 is a diagram illustrating an internal structure of a computer device in one embodiment. The computer device may specifically be a terminal, and may also be a server. As shown in fig. 7, the computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the memory includes a non-volatile 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 the processor, causes the processor to carry out the steps of the above-described method embodiments. The internal memory may also store a computer program, which, when executed by the processor, causes the processor to perform the steps of the above-described method embodiments. Those skilled in the art will appreciate that the architecture shown in fig. 7 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is proposed, comprising 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 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 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 that the water circulation device regulates and controls the flow to the heat exchanger equipment under the condition that the sum of the 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 relation between the circulating water flow and the circulating water supply time; the energy consumption model of the water circulation device is a mathematical relation between the sum of the 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 is water used for heating or cooling 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 regulated and controlled by the water circulation device to the heat exchanger equipment.
In one embodiment, a computer-readable storage medium is proposed, in which a computer program is stored which, when executed by a processor, causes the processor to carry out the steps of:
the method comprises the steps of obtaining 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 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 that the water circulation device regulates and controls the flow to the heat exchanger equipment under the condition that the sum of the 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 the circulating water flow and the circulating water supply time; the energy consumption model of the water circulation device is a mathematical relation between the sum of the 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 is water used for heating or cooling 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 regulated and controlled by the water circulation device to the heat exchanger equipment.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile 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), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A method of temperature regulation of a heat exchanger apparatus, the method comprising:
the method comprises the steps of obtaining 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 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 that the water circulation device regulates and controls the flow of the heat exchanger equipment under the condition that the sum of the 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 relation between the circulating water flow and the circulating water supply time; the energy consumption model of the water circulation device is a mathematical relation between the sum of the 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 is water used for heating or cooling 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 regulated and controlled by the water circulation device to the heat exchanger equipment.
2. The method of claim 1, wherein the establishing a heat exchanger plant temperature rise model comprises:
and establishing a temperature rise model of the heat exchanger equipment according to a functional relation formed by the flow rate of circulating water, the water supply time of the circulating water, 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 temperature.
3. The method of claim 1, wherein the establishing a water circulation device energy consumption model 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, a flow function of the water circulation device, the time for the water circulation device to start to operate and the time for the temperature of the water circulation device to reach the corresponding temperature threshold of the heat exchanger equipment.
4. The method of claim 1, wherein the determining that the water circulation device regulates the flow to the heat exchanger device with the least sum of the water circulation device power consumption according to the heat exchanger device temperature rise model and the water circulation device energy consumption model 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 heat exchanger equipment temperature rise model and the objective function; the objective function is used for solving the minimum value of the sum of the power consumptions of the water circulation devices;
substituting the minimum value of the sum of the power consumptions of the water circulation device into the energy consumption model of the water circulation device, and determining a flow function regulated and controlled by the water circulation device;
and determining the flow regulated and controlled by the water circulation device to the heat exchanger equipment according to the flow function.
5. The method according to claim 4, wherein solving the minimum value of the sum of the power consumptions of the water circulation device according to the heat exchanger equipment temperature rise model and the objective function comprises:
and determining a constraint condition for solving the objective function according to the heat exchanger equipment temperature rise model, and solving the minimum value of the total power consumption of the water circulation device according to the constraint condition and the objective function.
6. The method of claim 1, wherein the heat exchanger device temperature threshold is divided into a heating start threshold and a cooling start threshold, and the determining the regulation mode of the heat exchanger device according to the comparison result comprises:
when the real-time temperature of the heat exchanger equipment is smaller than the heating starting threshold value, determining the regulation mode as a first heating mode in a staged regulation mode; the first heating mode is that the hot water circulating 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 starting threshold value, determining the regulation mode as a cooling mode in the staged regulation mode; the cooling mode is that the cold water circulating device leads cold water in the cold water storage device to the water inlet end of the corresponding heat exchanger equipment;
when a heating starting threshold value is smaller than a circulating water real-time temperature, the circulating water real-time temperature is smaller than the heat exchanger equipment real-time temperature, and the heat exchanger equipment real-time temperature is smaller than the cooling starting threshold value, determining the regulation and control mode as a second heating mode in the staged regulation and control mode; and the second heating mode is that the hot water circulating device leads water which is not completely heated in the hot water storage device to the water inlet end of the corresponding heat exchanger equipment.
7. The method of claim 1, wherein the heat exchanger device temperature threshold is divided into a heating start threshold and a cooling start threshold, and the determining the regulation mode of the heat exchanger device according to the comparison result further comprises:
at night or in winter, when the real-time temperature of the heat exchanger equipment reaches the heating starting threshold corresponding to the heat exchanger equipment, determining the regulation mode as a first mode in a classified regulation mode, wherein the first mode in the classified regulation mode is that hot water in the hot water circulating 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 starting threshold and the temperature of the 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 starting threshold value corresponding to the heat exchanger equipment, determining the regulation mode as a second mode in a classified regulation mode, wherein the second mode in the classified regulation mode is that cold water in a cold water storage device or water which is not completely heated in a hot water circulating device is injected into the heat exchanger device to cool the heat exchanger equipment until the real-time temperature of the heat exchanger equipment is less than the cooling starting threshold value and the water temperature of the cooling water injected into the heat exchanger equipment is increased to a preset temperature.
8. A temperature regulating device of a heat exchanger apparatus, characterized in that the device comprises:
a regulation mode determination module: the system comprises a control module, a control module and a control module, wherein the control module is used for 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 value of the heat exchanger equipment, and determining the regulation and control mode of the heat exchanger equipment according to the comparison result;
a flow determination module: the system comprises a heat exchanger equipment temperature rise model, a water circulation device energy consumption model, a water circulation device and a control module, wherein the heat exchanger equipment temperature rise model and the water circulation device energy consumption model are established;
a temperature regulation module: and the water circulation device is used for regulating and controlling the flow to the heat exchanger equipment according to the regulation and control mode and the flow regulated and controlled by the water circulation device, and regulating and controlling the temperature of the heat exchanger equipment.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 7.
10. A computer arrangement comprising a memory and a processor, characterized in that the memory stores a computer program which, when executed by the processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 7.
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