Methods, apparatus, systems, and storage media for controlling a heat source management system

Abstract

The application relates to the technical field of heat source management, and discloses a method for controlling a heat source management system, which comprises the following steps: after the heat source management object is started, a first volume expansion rate of a phase change energy storage material in a shell after the phase change energy storage material absorbs heat is obtained; and according to the first volume expansion rate, the opening degree of a regulating valve is controlled to regulate the flow of refrigerant in a refrigerant circulation pipeline. The method realizes the energy-saving operation of the refrigerant circulation pipeline of the heat source management system according to the demand of the phase change energy storage material, not only realizes the heat export of the energy storage device, but also saves energy consumption and improves energy utilization. The application also discloses a device, a system and a storage medium for controlling the heat source management system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat source management, for example to a method, device, system and storage medium for controlling a heat source management system. BACKGROUND

[0002] Nowadays, the development of science and technology promotes the update iteration of electronic products, and electronic products have brought about earth-shaking changes in social life. As we all know, when the electronic product is working normally, its core components will usually generate a large amount of heat. With the popularization and promotion of clean energy and energy-saving and environmental protection concepts, the heat dissipation problem of the core components of electronic products is related to the service life, safety and reliability of electronic products, and has always been the focus of attention and research of scientific and technical personnel.

[0003] The related technology discloses a vehicle power battery composite heat management system based on high-thermal-conductivity phase change material, which comprises an electronic expansion valve, an evaporator, a compressor, a channel box, a refrigerant channel and a phase change material. The electronic expansion valve, the evaporator and the compressor are connected in series through pipelines. The side of the electronic expansion valve, which is not connected with the evaporator, is connected with one end of the channel box. The side of the compressor, which is not connected with the evaporator, is connected with the other side of the channel box. A plurality of refrigerant channels are arranged on six side walls of the channel box. The electronic expansion valve, the evaporator and the compressor are connected with the refrigerant channels in the channel box through sealed pipelines to cool the whole channel box and timely remove the heat absorbed by the phase change material. The phase change material is arranged in the space formed by the plurality of refrigerant channels. The battery is installed in the channel box, and the remaining space is filled with the phase change material. The phase change material is a phase change material with high thermal conductivity and high phase change latent heat.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The electronic expansion valve, the evaporator and the compressor of the heat management system are connected with the refrigerant channels in the channel box through sealed pipelines to cool the channel box. The battery and the phase change material are located in the channel box, that is, the refrigerant channels first cool the channel box, then the channel box cools the phase change material, and finally the phase change material cools the electronic product. In the process of cooling the phase change material, the refrigerant in the refrigerant channel always flows at a fixed refrigerant flow rate regardless of the amount of heat absorbed by the phase change material. In this way, the heat management system cannot adjust the refrigerant flow rate according to the different amounts of heat absorbed by the phase change material, which will cause great waste of energy. SUMMARY

[0006] The following presents a simplified summary of some aspects of the disclosure in order to provide a basic understanding. This summary is not an extensive overview of the disclosure and is not intended to identify key / critical elements or to delineate the scope of the embodiments. Its sole purpose is to present some aspects of the disclosure in a simplified form as a prelude to the more detailed description that is presented later.

[0007] The embodiments of the present disclosure provide a method, device, system and storage medium for controlling a heat source management system, so as to realize on-demand operation of a refrigerant circulation pipeline, save energy consumption and improve energy utilization.

[0008] In some embodiments, the heat source management system comprises a heat source management object, an energy storage device, a heat conduction element, a refrigerant circulation pipeline and a regulating valve, wherein the energy storage device comprises a shell and a phase change energy storage material filled in the shell, the heat source management object emits heat which is transferred to the phase change energy storage material through the heat conduction element, the refrigerant circulation pipeline is arranged in the phase change energy storage material, and the regulating valve is arranged at an input end of the refrigerant circulation pipeline; the method for controlling the heat source management system comprises: after the heat source management object is started, a first volume expansion rate of the phase change energy storage material after absorbing heat in the shell is obtained; and an opening degree of the regulating valve is controlled according to the first volume expansion rate, so as to adjust a flow of refrigerant in the refrigerant circulation pipeline.

[0009] In some embodiments, the device for controlling the heat source management system comprises a processor and a memory storing program instructions, and the processor is configured to execute the method for controlling the heat source management system as described above when the program instructions are executed.

[0010] In some embodiments, the heat source management system comprises a heat source management object, an energy storage device, a heat conduction element, a refrigerant circulation pipeline and a regulating valve, wherein the energy storage device comprises a shell and a phase change energy storage material filled in the shell, the heat conduction element is connected between the heat source management object and the energy storage device, and is used for transferring heat of the heat source management object to the phase change energy storage material; the refrigerant circulation pipeline is arranged in the phase change energy storage material, and comprises an input end and an output end, low-temperature refrigerant flows from the input end to the output end, so as to lead out heat in the phase change energy storage material; the regulating valve is arranged at the input end; a liquid level monitoring device is connected with the shell and is electrically connected with the regulating valve, the phase change energy storage material expands in volume after absorbing heat, and can drive a liquid level in the liquid level monitoring device to rise, the liquid level monitoring device determines a volume change rate of the phase change energy storage material after absorbing heat according to a change of the liquid level height, so as to control the opening degree of the regulating valve; and the device for controlling the heat source management system as described above.

[0011] In some embodiments, the storage medium stores program instructions, and the program instructions are executed when executed, to execute the method for controlling the heat source management system as described above.

[0012] The method, device, system and storage medium for controlling the heat source management system provided by the embodiments of the present disclosure can achieve the following technical effects:

[0013] If the heat source management object stops working soon after starting, at this time, the heat source management object emits less heat, or the temperature rise of the phase change energy storage material before reaching the phase change temperature is not large, in this case, the phase change energy storage material can digest these heat by itself, that is, stored in the phase change energy storage material. At this time, the heat in the phase change energy storage material does not need to be exported, and the expansion rate of the phase change energy storage material is low, which can make the refrigerant circulation loop stop circulating. In the case that the phase change energy storage material absorbs more heat, the expansion rate of the phase change energy storage material is low, which can make the refrigerant circulation loop circulate to export the heat absorbed by the phase change energy storage material. Therefore, the opening degree of the adjusting valve can be controlled to be greater than zero according to the first volume expansion rate of the phase change energy storage material after absorbing heat, so that the refrigerant circulation loop is connected, or the opening degree of the adjusting valve is controlled to be zero, so that the refrigerant circulation loop is not connected. In this way, the on-demand energy-saving operation of the refrigerant circulation pipeline is realized, not only the heat of the energy storage device is exported, but also the energy consumption is saved and the energy utilization rate is improved.

[0014] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitations, and wherein:

[0016] Figure 1 is a structural schematic diagram of a heat source management system provided by an embodiment of the present disclosure;

[0017] Figure 2 is Figure 1 is a sectional structure schematic diagram of the middle shell along the A-A line;

[0018] Figure 3 is a schematic diagram of a method for controlling a heat source management system provided by an embodiment of the present disclosure;

[0019] Figure 4 is a schematic diagram of another method for controlling a heat source management system provided by an embodiment of the present disclosure;

[0020] Figure 5 is a schematic diagram of another method for controlling a heat source management system provided by an embodiment of the present disclosure;

[0021] Figure 6is a schematic diagram of another method for controlling a heat source management system provided by an embodiment of the present disclosure;

[0022] Figure 7 is a schematic diagram of a device for controlling a heat source management system provided by an embodiment of the present disclosure;

[0023] Figure 8 is a schematic diagram of a device for controlling a heat source management system provided by an embodiment of the present disclosure;

[0024] Figure 9 is a schematic diagram of a device for controlling a heat source management system provided by an embodiment of the present disclosure;

[0025] Figure 10 is a schematic diagram of another device for controlling a heat source management system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] In order to enable persons skilled in the art to more fully understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below with reference to the accompanying drawings, which are used only for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0027] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0028] Unless otherwise specified, the term "a plurality of" means two or more.

[0029] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the preceding and following objects. For example, A / B represents: A or B.

[0030] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0031] The term "corresponding" can refer to an association relationship or a binding relationship. A and B correspond to each other means that there is an association relationship or a binding relationship between A and B.

[0032] Figure 1 is a structural schematic diagram of a heat source management system provided by an embodiment of the present disclosure; Figure 2 is Figure 1 is a sectional structural schematic diagram of the middle shell along the line A-A. The arrow direction is the flow direction of the low-temperature refrigerant. In combination with Figure 1 , Figure 2 It is shown that the present disclosure provides a heat source management system, which includes a heat source management object 100, an energy storage device 200, a heat-conducting element 300, a refrigerant circulation pipeline 400, a regulating valve 500 and a liquid level monitoring device 600. The energy storage device 200 includes a shell 210 and a phase change energy storage material 220 filled in the inside of the shell 210. The heat-conducting element 300 is connected between the heat source management object 100 and the energy storage device 200, for transmitting the heat of the heat source management object 100 to the phase change energy storage material 220. The refrigerant circulation pipeline 400 is arranged in the inside of the phase change energy storage material 220, including an input end 410 and an output end 420, and the low-temperature refrigerant flows from the input end 410 to the output end 420, so as to lead out the heat in the phase change energy storage material 220. The regulating valve 500 is arranged at the input end 410. The liquid level monitoring device 600 is in communication with the shell 210, and is electrically connected with the regulating valve 500. After the phase change energy storage material 220 absorbs the heat, the volume expands, which can drive the liquid level in the liquid level monitoring device 600 to rise. The liquid level monitoring device 600 determines the volume change rate of the phase change energy storage material 220 after absorbing the heat according to the change of the liquid level height, so as to control the opening degree of the regulating valve 500.

[0033] Optionally, the heat source management object 100 can be a variable frequency chip of an air conditioner, or can be a new energy battery. It can be understood that the heat source management object 100 includes but is not limited to the variable frequency chip of the air conditioner and the new energy battery, and can also be other types of chips.

[0034] The variable frequency chip is an important component in the variable frequency air conditioner, which determines the operating frequency of the compressor. The higher the operating frequency of the compressor, the stronger the refrigeration capacity in summer, and at this time the variable frequency chip generates heat rapidly. The variable frequency chip mainly includes: intelligent power module (IPM), insulated gate bipolar transistor (IGBT), diode, rectifier bridge, and the packaging of these variable frequency chips into a whole is called a variable frequency module. Since the variable frequency module is the main heat source, the variable frequency module can also be called a heat source module, that is, a heat source management object. With the improvement of semiconductor technology process, the chip design is more compact, the heat flux density of components is increasing, and the volume of components is also becoming smaller. The temperature of the chip is too high, which will cause the temperature deviation of various quantitative indicators of the equipment, increase or decrease the quantitative indicators, and in severe cases, may cause the equipment to crash, fire, and other situations. Therefore, the variable frequency chip is seriously restricted by the heat dissipation problem of large heat flux density and large power, which seriously restricts the working safety and high-temperature refrigeration capacity of the air conditioner.

[0035] Optionally, the shell 210 can be in the shape of a cylinder, a square, or a cuboid. Optionally, the shell 210 is made of heat-insulating material and coated with a fireproof coating. Specifically, the non-contact surface of the shell 210 with the heat-conducting element 300 is made of heat-insulating or heat-insulating material, and the contact surface of the shell 210 with the heat-conducting element 300 is a plate material with good heat-conducting performance, such as an aluminum plate.

[0036] Optionally, the phase change energy storage material 220 can be paraffin. Paraffin has a large latent heat of phase change and a low melting point. During the process of absorbing heat, it can quickly reach the melting point and remain at a constant temperature during the solid-liquid phase change process while absorbing a large amount of heat. That is, the phase change energy storage material 220 does not have supercooling phenomenon when it solidifies, and the phase change process is approximately an isothermal process, so that the heat source management object such as the variable frequency chip of the air conditioner can operate under stable temperature conditions. Optionally, in order to improve the thermal conductivity of paraffin, additives can also be added to paraffin to enhance its heat-conducting performance. It can be understood that the phase change energy storage material 220 includes but is not limited to paraffin. Optionally, the phase change energy storage material 220 has the advantages of good chemical stability, non-toxicity, non-corrosion, non-flammability and non-explosiveness, low cost, etc.

[0037] Optionally, the heat-conducting element 300 is connected between the heat source management object 100 and the energy storage device 200, i.e. one end of the heat-conducting element 300 is connected to the heat source management object 100 to absorb heat of the heat source management object 100, and the other end of the heat-conducting element 300 extends into the phase-change energy storage material inside the shell 210 to transfer the heat of the heat source management object 100 to the phase-change energy storage material 220 for storage. Optionally, the heat-conducting element 300 is made of a material with good heat-conducting performance.

[0038] Optionally, the refrigerant circulation pipeline 400 is arranged inside the phase-change energy storage material 220 and includes an input end 410 and an output end 420. The shell 210 is provided with a first interface 211 for refrigerant to enter and a second interface 212 for refrigerant to flow out. The input end 410 is connected to the first interface 211 of the shell 210, and the output end 420 is connected to the second interface 212 of the shell 210, so that the low-temperature refrigerant can flow from the input end 410 to the output end 420. In this way, the low-temperature refrigerant can absorb the heat of the heat source management object 100 stored in the phase-change energy storage material 220 during the process of flowing from the input end 410 to the output end 420, so as to take the heat out of the shell 210, thereby achieving the cooling of the heat source management object 100.

[0039] Optionally, the refrigerant circulation pipeline 400 is connected to a pipeline section with heat absorption function in an air conditioner. Specifically, the refrigerant circulation pipeline 400 can be connected to an outlet pipeline section of an indoor heat exchanger, i.e. an evaporator, of the air conditioner in a cooling state, so that the low-temperature refrigerant flowing through the refrigerant circulation pipeline 400 absorbs the heat in the phase-change energy storage material 220; or the refrigerant circulation pipeline 400 can be connected to an inlet pipeline section of an outdoor heat exchanger of the air conditioner in a heating state, so that the low-temperature refrigerant flowing through the refrigerant circulation pipeline 400 absorbs the heat in the phase-change energy storage material 220.

[0040] Optionally, the shell 210 is connected to a liquid level monitoring device 600. The phase-change energy storage material 220 filled in the shell 210 will expand in volume after absorbing the heat of the heat source management object 100, and the volume expansion force in the space of the shell 210 can drive the gas in the space into the liquid level monitoring device 600 to drive the liquid level in the liquid level monitoring device 600 to rise. The volume change rate of the phase-change energy storage material 220 after absorbing the heat is determined according to the height of the rising liquid level.

[0041] When the volume change rate is greater than the preset value, it indicates that the phase change energy storage material 220 absorbs a large amount of heat at this time, and the low-temperature refrigerant in the refrigerant circulation pipeline 400 needs to take away the heat, therefore, the opening degree of the regulating valve is greater than zero to realize the flow of the low-temperature refrigerant from the input end 410 to the output end 420, and the heat emitted by the heat source management object 100 is exported. When the volume change rate is less than the preset value, it indicates that the temperature rise of the phase change energy storage material 220 is small at this time, or the heat emitted by the heat source management object 100 is small, and these heat can be temporarily stored in the phase change energy storage material 220, which does not affect the phase change energy storage material 220 to continue to absorb the heat emitted by the heat source management object 100, and does not affect the normal operation of the heat source management object 100. Therefore, the opening degree of the regulating valve is zero, that is, the refrigerant circulation pipeline 400 stops running, thereby saving the energy consumption of the refrigerant. In this way, according to the different heat absorbed by the phase change energy storage material, the refrigerant circulation pipeline is controlled to run according to the energy saving demand of the phase change energy storage material, not only the heat of the energy storage device is exported, but also the energy consumption is saved, and the energy utilization rate is improved.

[0042] In combination Figure 3 The embodiment of the present disclosure provides a method for controlling a heat source management system, comprising:

[0043] In S101, the controller obtains a first volume expansion rate of the phase change energy storage material after absorbing heat in the shell after the heat source management object is started.

[0044] In S102, the controller controls the opening degree of the regulating valve according to the first volume expansion rate to adjust the flow of the refrigerant in the refrigerant circulation pipeline.

[0045] Optionally, the heat source management object includes a new energy battery and a chip, etc. It can be understood that the heat source management object 1 includes but is not limited to a new energy battery and a chip.

[0046] The heat dissipation of the heat source management object is of great significance. Taking a chip as an example, the chip undertakes functions such as operation and storage. A large number of transistors are integrated on the small chip, and the transistors release heat after passing through the current. The accumulated heat will cause the temperature of the chip to rise. When the heat dissipation speed of the chip is far less than the heat generation speed, the local temperature of the chip will be too high, which will affect the function of the equipment, for example, the temperature of the chip is too high, which will cause the temperature of various quantitative indicators of the equipment to deviate, and in severe cases, it may also cause the equipment to crash, fire, and other situations.

[0047] In the embodiment of the present disclosure, the heat source management object will generate heat after starting, and the heat will be transferred to the phase change energy storage material through the heat conduction element. After the phase change energy storage material absorbs heat, the temperature rises and the volume expands. During the flow of the low-temperature refrigerant through the refrigerant circulation pipeline, heat exchange can occur with the phase change energy storage material, that is, during the flow of the low-temperature refrigerant from the input end to the output end of the refrigerant circulation pipeline, the phase change energy storage material can export the heat absorbed by the heat source management object, thereby achieving the cooling of the heat source management object. In addition, the refrigerant circulation pipeline cools and reduces the temperature of the heat source management object through the phase change energy storage material, rather than directly cooling and reducing the temperature of the heat source management object. The temperature change of the phase change energy storage material during the phase change is small, which can prevent the heat source management object from condensing and dewing due to a large temperature difference with the surrounding environment.

[0048] In the above process, if the heat source management object stops working soon after starting, at this time, the heat source management object emits less heat, or the temperature rise value of the phase change energy storage material before reaching the phase change temperature is not large, in which case the phase change energy storage material can digest the heat by itself, that is, store it in the phase change energy storage material. At this time, the heat in the phase change energy storage material does not need to be exported, and the expansion rate of the phase change energy storage material is low, so the opening of the regulating valve can be controlled to zero to make the flow of the refrigerant in the refrigerant circulation loop zero, that is, the refrigerant in the refrigerant circulation loop stops circulating. In the case where the phase change energy storage material absorbs a large amount of heat, the expansion rate of the phase change energy storage material is low, so the opening of the regulating valve can be controlled to be greater than zero to make the flow of the refrigerant in the refrigerant circulation loop greater than zero, that is, the refrigerant in the refrigerant circulation loop circulates to export the heat absorbed by the phase change energy storage material. Therefore, the opening of the regulating valve can be controlled according to the first volume expansion rate of the phase change energy storage material after absorbing heat, so as to control the flow of the refrigerant in the refrigerant circulation loop, to realize the circulation or disconnection of the refrigerant circulation pipeline, and further realize the energy-saving operation of the refrigerant circulation pipeline according to the demand of the phase change energy storage material. In this way, not only the export of the heat absorbed by the energy storage device is realized, but also energy consumption is saved and energy utilization is improved.

[0049] In combination with Figure 4 The embodiment of the present disclosure provides another method for controlling a heat source management system, comprising:

[0050] S101, the controller acquires the first volume expansion rate of the phase change energy storage material in the shell after absorbing heat after the heat source management object starts.

[0051] S112, the controller controls the regulating valve to open to make the flow of the refrigerant in the refrigerant circulation pipeline greater than zero when the first volume expansion rate is greater than the preset volume expansion value.

[0052] S122, the controller controls the regulating valve to close to make the flow of the refrigerant in the refrigerant circulation pipeline equal to zero in the case that the first volume expansion rate is less than or equal to the preset volume expansion value.

[0053] In the embodiments of the present disclosure, the heat source management object generates heat after starting to work, and the heat is transferred to the phase change energy storage material in the shell through the heat conduction element. The phase change energy storage material changes from solid to liquid and expands in volume after absorbing heat to reach the phase change temperature. The phase change energy storage material can store the heat. In the case that the first volume expansion rate is greater than the preset volume expansion value, it is indicated that the refrigerant in the refrigerant circulation pipeline needs to circulate at this time to take away the heat in the phase change energy storage material, and therefore, the regulating valve is controlled to open, that is, the opening degree of the regulating valve is greater than zero, and the refrigerant in the refrigerant circulation pipeline is greater than zero, that is, the refrigerant in the refrigerant circulation pipeline circulates. After the refrigerant circulation loop is turned on, the low-temperature refrigerant flows from the input end to the output end, and in the process of flowing, the low-temperature refrigerant exchanges heat with the phase change energy storage material to achieve the cooling of the phase change energy storage material, that is, the heat is conducted out of the phase change energy storage material. The low-temperature refrigerant continuously flows from the input end to the output end to achieve uninterrupted heat exchange with the phase change energy storage material. In the case that the first volume expansion rate of the phase change energy storage material is less than or equal to the preset volume threshold value, it is indicated that the heat absorbed by the phase change energy storage material needs to be self-digested at this time, and the heat temporarily stored in the phase change energy storage material can be digested, and the refrigerant circulation pipeline does not need to absorb the heat, and therefore, the regulating valve is controlled to close, that is, the opening degree of the regulating valve is zero, so that the refrigerant flow of the refrigerant circulation loop is zero, that is, the refrigerant flow of the refrigerant circulation loop is not turned on. In this way, the refrigerant circulation pipeline is realized to operate according to the demand of the phase change energy storage material, and energy consumption is saved.

[0054] In combination with Figure 5 As shown in the figure, the embodiments of the present disclosure provide another method for controlling a heat source management system, comprising:

[0055] S101, the controller obtains a first volume expansion rate of the phase change energy storage material in the shell after absorbing heat after the heat source management object starts.

[0056] S113, the controller controls the regulating valve to operate at the first opening degree to make the refrigerant in the refrigerant circulation pipeline circulate at a first flow rate in the case that the first volume expansion rate is greater than the preset volume expansion value.

[0057] In the embodiments of the present disclosure, the heat source management object generates heat after starting to work, and the heat is transferred to the phase change energy storage material in the shell interior through the heat conduction element. The phase change energy storage material changes from solid to liquid and expands in volume after absorbing heat to reach the phase change temperature. In the case that the first volume expansion rate is greater than the preset volume expansion value, it is indicated that the refrigerant in the refrigerant circulation pipeline needs to circulate at this time to take away the heat in the phase change energy storage material, and therefore, the control valve is controlled to operate at the first opening degree to make the refrigerant in the refrigerant circulation pipeline circulate at the first flow rate. After the refrigerant circulation loop is opened to the first opening degree through the control valve, the low-temperature refrigerant flows from the input end to the output end, and in the process that the low-temperature refrigerant flows at the first flow rate, the low-temperature refrigerant exchanges heat with the phase change energy storage material to realize the cooling of the phase change energy storage material, that is, to lead the heat out of the phase change energy storage material. The low-temperature refrigerant continuously flows from the input end to the output end to realize the uninterrupted heat exchange with the phase change energy storage material.

[0058] Optionally, the first opening degree can be one fourth of the maximum opening degree of the control valve.

[0059] In combination with Figure 6 The embodiments of the present disclosure provide another method for controlling a heat source management system, which comprises:

[0060] S101, the controller acquires the first volume expansion rate of the phase change energy storage material in the shell after absorbing heat after the heat source management object starts.

[0061] S113, in the case that the first volume expansion rate is greater than the preset volume expansion value, the control valve is controlled to operate at the first opening degree to make the refrigerant in the refrigerant circulation pipeline circulate at the first flow rate.

[0062] S114, the controller acquires the second volume expansion rate of the phase change energy storage material in the shell after absorbing heat after the control valve is controlled to operate at the first opening degree for the first preset time length.

[0063] S115, in the case that the second volume expansion rate is greater than or equal to the first volume expansion rate, the control valve is controlled to operate at the second opening degree to make the refrigerant in the refrigerant circulation pipeline circulate at the second flow rate.

[0064] Wherein, the second opening degree is greater than the first opening degree, and the second flow rate is greater than the first flow rate.

[0065] In the embodiment of the present disclosure, after the control valve is controlled to run at the first opening for the first preset time length, the second volume expansion rate of the phase change energy storage material after absorbing heat is obtained. If the second volume expansion rate is greater than or equal to the first volume expansion rate, it indicates that the volume of the phase change energy storage material continues to expand, and the heat absorbed by the phase change energy storage material is greater than the heat dissipated by the low-temperature refrigerant in the same time. At this time, the opening of the control valve needs to be increased to increase the flow of the refrigerant in the refrigerant circulation pipeline. Therefore, the opening of the control valve is increased to the second opening for correction operation, so that the refrigerant in the refrigerant circulation pipeline flows at the second flow, thereby increasing the flow of the low-temperature refrigerant. In this way, by increasing the flow of the low-temperature refrigerant to the second flow, the heat exchange amount between the low-temperature refrigerant and the phase change energy storage material can be increased. Thus, the refrigerant circulation pipeline is controlled to operate according to the demand of the phase change energy storage material according to the different heat absorbed by the phase change energy storage material, energy saving operation is realized, energy consumption is saved, and energy utilization rate is improved.

[0066] Optionally, the first preset time length can be set in advance. For example, the first preset time length can be 30S, 60S or 90S.

[0067] Optionally, the second opening can be half of the maximum opening of the control valve.

[0068] In combination Figure 7 As shown in the figure, the embodiment of the present disclosure provides another method for controlling a heat source management system, comprising:

[0069] S101, the controller obtains a first volume expansion rate of the phase change energy storage material in the shell after absorbing heat after the start of the heat source management object.

[0070] S113, in the case where the first volume expansion rate is greater than the preset volume expansion value, the control valve is controlled to run at the first opening to make the refrigerant in the refrigerant circulation pipeline flow at the first flow.

[0071] S114, the controller obtains a second volume expansion rate of the phase change energy storage material in the shell after absorbing heat after the control valve is controlled to run at the first opening for the first preset time length.

[0072] S115, the controller controls the control valve to run at the second opening to make the refrigerant in the refrigerant circulation pipeline flow at the second flow in the case where the second volume expansion rate is greater than or equal to the first volume expansion rate.

[0073] S116, the controller obtains a third volume expansion rate of the phase change energy storage material in the shell after absorbing heat after the control valve is controlled to run at the second opening for the second preset time length.

[0074] S117, in the case that the third volume expansion rate is greater than the first volume expansion rate, the controller controls the regulating valve to operate at a third opening degree to make the refrigerant in the refrigerant circulation pipeline circulate at a third flow rate.

[0075] wherein the third opening degree is greater than the second opening degree, and the third flow rate is greater than the second flow rate.

[0076] In the embodiments of the present disclosure, after the regulating valve is controlled to continuously operate at the second opening degree for a second preset time length, a third volume expansion rate of the phase change energy storage material after absorbing heat is obtained. If the third volume expansion rate is greater than or equal to the second volume expansion rate, it indicates that the volume of the phase change energy storage material continues to expand, and the heat absorbed by the phase change energy storage material is greater than the heat extracted by the low-temperature refrigerant in the same time. At this time, the opening degree of the regulating valve needs to be increased to increase the flow rate of the refrigerant in the refrigerant circulation pipeline. Therefore, the opening degree of the regulating valve is increased to a third opening degree for correction operation to make the refrigerant in the refrigerant circulation pipeline circulate at a third flow rate, thereby increasing the flow rate of the low-temperature refrigerant. In this way, by increasing the flow rate of the low-temperature refrigerant to the third flow rate, the heat exchange amount between the low-temperature refrigerant and the phase change energy storage material can be increased. Thus, the refrigerant circulation pipeline is controlled to operate according to the demand of the phase change energy storage material to save energy, thereby saving energy consumption and improving energy utilization.

[0077] Optionally, the second preset time length can be set in advance. For example, the second preset time length can be 30S, 60S or 90S.

[0078] Optionally, the third opening degree can be three fourths of the maximum opening degree of the regulating valve.

[0079] In combination with Figure 8 As shown in the accompanying drawings, the embodiments of the present disclosure provide another method for controlling a heat source management system, comprising:

[0080] S101, after the heat source management object is started, the controller obtains a first volume expansion rate of the phase change energy storage material in the shell after absorbing heat.

[0081] S113, in the case that the first volume expansion rate is greater than a preset volume expansion value, the controller controls the regulating valve to operate at a first opening degree to make the refrigerant in the refrigerant circulation pipeline circulate at a first flow rate.

[0082] S114, after the controller controls the regulating valve to continuously operate at the first opening degree for a first preset time length, a second volume expansion rate of the phase change energy storage material in the shell after absorbing heat is obtained.

[0083] S125, in the case that the second volume expansion rate is less than the first volume expansion rate, the controller controls the regulating valve to operate at an opening degree less than the first opening degree to reduce the flow rate of the refrigerant in the refrigerant circulation pipeline.

[0084] In the embodiments of the present disclosure, the heat source management object generates heat after starting to work, and the heat is transferred to the phase change energy storage material in the interior of the shell through the heat conduction element. The phase change energy storage material absorbs the heat and stores the heat. When the first volume expansion rate of the phase change energy storage material is less than or equal to the preset volume threshold value, it indicates that the heat absorbed by the phase change energy storage material needs to be self-digested at this time, and the heat absorbed by the phase change energy storage material does not need to be led out by the refrigerant circulation pipeline. In this way, the opening degree of the regulating valve can be controlled to be zero, so that the refrigerant circulation loop is not conducted. In this way, energy consumption is saved.

[0085] In the embodiments of the present disclosure, after the regulating valve is controlled to operate at the first opening degree for a first preset time length, the second volume expansion rate of the phase change energy storage material after absorbing heat is obtained. If the second volume expansion rate is less than the first volume expansion rate, it indicates that the volume expansion rate of the phase change energy storage material decreases, and the heat absorbed by the phase change energy storage material in the same time is less than the heat led out by the low-temperature refrigerant. At this time, the opening degree of the regulating valve needs to be reduced. Therefore, the opening degree of the regulating valve is adjusted to be less than the first opening degree, so as to reduce the flow of the low-temperature refrigerant to reduce the heat exchange amount between the low-temperature refrigerant and the phase change energy storage material.

[0086] Optionally, if the second volume expansion rate is less than or equal to the preset volume expansion value, it indicates that the heat absorbed by the phase change energy storage material in the same time is much less than the heat led out by the low-temperature refrigerant. At this time, the heat absorbed by the phase change energy storage material can be self-absorbed. At this time, the opening degree of the regulating expansion valve can be adjusted to zero to stop the flow of the refrigerant in the refrigerant circulation pipeline. Thus, according to the different heat absorbed by the phase change energy storage material, the refrigerant circulation pipeline is controlled to operate according to the demand of the phase change energy storage material, energy consumption is saved, energy utilization rate is improved.

[0087] Optionally, the heat source management system further comprises a liquid level detection device in communication with the shell, and the first volume expansion rate is determined in the following manner: the controller obtains a first liquid level change value of the liquid level monitoring device; and the controller determines the first volume expansion rate of the phase change energy storage material after absorbing heat in the shell according to the first liquid level change value.

[0088] In the embodiment, if the heat source management object is just started, the heat source management object can be operated for a third preset time, the difference between the liquid level height after the third preset time and the liquid level height after the last operation of the heat source management object is calculated, the difference is taken as a first liquid level change value, and the controller determines the volume expansion rate according to the first liquid level change value. If the volume expansion rate is less than or equal to a preset volume expansion value, the liquid level change value of the same adjacent time is calculated. Alternatively, the liquid level change value of each adjacent time can correspond to a volume expansion rate, wherein the corresponding relationship between the liquid level change value and the volume expansion rate is preset in the controller. The controller can determine the first volume expansion rate as the first volume expansion rate if the first volume expansion rate is greater than the preset volume expansion value. If the volume expansion rate is greater than the preset volume expansion value, the volume expansion rate is determined as the first volume expansion rate.

[0089] In combination with Figure 9 As shown in the figure, the embodiment of the present disclosure provides a device for controlling a heat source management system, which comprises an acquisition module 71 and a control module 72. The acquisition module 71 is configured to acquire a first volume expansion rate of the phase change energy storage material in the shell after absorbing heat after the heat source management object is started. The control module 72 is configured to control the opening degree of the adjusting valve according to the first volume expansion rate to adjust the flow of the refrigerant in the refrigerant circulation pipeline.

[0090] The device for controlling the heat source management system provided by the embodiment of the present disclosure is beneficial to the heat source management system to control the refrigerant circulation pipeline to run according to the energy saving demand of the phase change energy storage material, save energy consumption, and improve the energy utilization rate.

[0091] In combination with Figure 10 As shown in the figure, the embodiment of the present disclosure provides a device for controlling a heat source management system, which comprises a processor 800 and a memory 801. Optionally, the device can also comprise a communication interface 802 and a bus 803. The processor 800, the communication interface 802, and the memory 801 can complete mutual communication through the bus 803. The communication interface 802 can be used for information transmission. The processor 800 can call the logic instructions in the memory 801 to execute the method for controlling the heat source management system of the above-mentioned embodiments.

[0092] In addition, the logic instructions in the memory 801 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0093] The memory 801 can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the control method in the embodiments of the present disclosure, as a computer readable storage medium. The processor 800 executes the function application and data processing, that is, implements the method for controlling the heat source management system in the above embodiments, by running the program instructions / modules stored in the memory 801.

[0094] The memory 801 can include a program storage area and a data storage area. The program storage area can store an operating system and application programs required by at least one function; the data storage area can store data created according to the use of the terminal device, and the like. In addition, the memory 801 can include a high-speed random access memory, and can also include a non-volatile memory.

[0095] The embodiments of the present disclosure provide a heat source management system, comprising the above-described device for controlling the heat source management system.

[0096] The embodiments of the present disclosure provide a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the above-described method for controlling the heat source management system.

[0097] The embodiments of the present disclosure provide a computer program product, which comprises a computer program stored on a computer readable storage medium, and the computer program comprises program instructions. When the program instructions are executed by a computer, the computer executes the above-described method for controlling the heat source management system.

[0098] The above-described computer readable storage medium can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0099] The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiments of the present disclosure. The above-mentioned storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes, or can be a transitory storage medium.

[0100] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0101] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0102] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.), can be implemented in other manners. For example, the described apparatus embodiments can be implemented only in a form of a logical function, and can be implemented by using a manner such as software (for example, application program) or the like. In some embodiments, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or indirect coupling between different units, or the coupling or direct coupling or indirect coupling between the displayed or discussed communication connections can be in a form of electrical, mechanical or other forms.

[0103] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment or a part of code containing one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling a heat source management system, characterized by, The heat source management system comprises a heat source management object, an energy storage device, a heat conducting element, a refrigerant circulation pipeline, a regulating valve and a liquid level monitoring device. The energy storage device comprises a shell and a phase change energy storage material filled in the shell. The phase change process of the phase change energy storage material is approximately an isothermal process. The heat emitted by the heat source management object is transmitted to the phase change energy storage material through the heat conducting element. The refrigerant circulation pipeline is arranged in the phase change energy storage material. The low-temperature refrigerant is arranged in the refrigerant circulation pipeline to lead out the heat in the phase change energy storage material. The regulating valve is arranged at the input end of the refrigerant circulation pipeline. The liquid level monitoring device is in communication with the shell. The liquid level monitoring device determines the volume expansion rate of the phase change energy storage material after absorbing heat according to the change of the liquid level. The method comprises: After the heat source management object is started, a first volume expansion rate of the phase change energy storage material in the shell after absorbing heat is obtained. In the case that the first volume expansion rate is greater than a preset volume expansion value, the regulating valve is controlled to operate at a first opening degree, so that the refrigerant in the refrigerant circulation pipeline circulates at a first flow rate. After the regulating valve is controlled to operate at the first opening degree for a first preset time length, a second volume expansion rate of the phase change energy storage material in the shell after absorbing heat is obtained. In the case that the second volume expansion rate is greater than or equal to the first volume expansion rate, the regulating valve is controlled to operate at a second opening degree, so that the refrigerant in the refrigerant circulation pipeline circulates at a second flow rate. The second opening degree is greater than the first opening degree, and the second flow rate is greater than the first flow rate. In the case that the second volume expansion rate is less than the first volume expansion rate, the regulating valve is controlled to operate at an opening degree less than the first opening degree, so that the flow rate of the refrigerant in the refrigerant circulation pipeline is reduced; or In the case that the first volume expansion rate is less than or equal to the preset volume expansion value, the regulating valve is controlled to be closed, so that the flow rate of the refrigerant in the refrigerant circulation pipeline is equal to zero.

2. The method of claim 1, wherein, The heat source management object comprises a new energy battery and a chip.

3. The method of claim 1, wherein, The first opening degree is one fourth of the maximum opening degree of the regulating valve.

4. The method of claim 1, wherein, The second opening degree is one half of the maximum opening degree of the regulating valve.

5. The method according to any one of claims 1 to 4, characterized in that, The method further comprises: After the regulating valve is controlled to operate at the second opening degree for a second preset time length, a third volume expansion rate of the phase change energy storage material in the shell after absorbing heat is obtained. In the case that the third volume expansion rate is greater than the first volume expansion rate, the regulating valve is controlled to operate at a third opening degree, so that the refrigerant in the refrigerant circulation pipeline circulates at a third flow rate. The third opening degree is greater than the second opening degree, and the third flow rate is greater than the second flow rate.

6. The method of claim 5, wherein, The third opening degree is three fourths of the maximum opening degree of the regulating valve.

7. An apparatus for controlling a heat source management system, characterized by comprising: The method for controlling the heat source management system is used.

8. An apparatus for controlling a heat source management system, comprising a processor and a memory having stored therein program instructions, characterized in that, The processor is configured to execute the method for controlling the heat source management system when the program instructions are executed.

9. A heat source management system characterized by comprising: The method comprises: a heat source management object; an energy storage device comprising a shell and a phase change energy storage material filled in the shell; wherein the phase change process of the phase change energy storage material is approximately an isothermal process; A heat-conducting element is connected between the heat source management object and the energy storage device for transferring heat from the heat source management object to the phase-change energy storage material; a refrigerant circulation pipeline is arranged inside the phase-change energy storage material and includes an input end and an output end, and low-temperature refrigerant flows from the input end to the output end to lead out heat from the phase-change energy storage material; and a regulating valve is arranged at the input end. A liquid level monitoring device is connected to the shell and electrically connected to the regulating valve, and the phase-change energy storage material expands in volume after absorbing heat and can drive the liquid level in the liquid level monitoring device to rise, and the liquid level monitoring device determines the volume change rate of the phase-change energy storage material after absorbing heat according to the change in the liquid level height to control the opening degree of the regulating valve; and The device for controlling a heat source management system according to claim 7 or 8.

10. A storage medium storing program instructions, characterized in that, The program instructions, when executed, perform the method for controlling a heat source management system according to any one of claims 1 to 6.

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