Solar thermodynamic system control method and device

Abstract

The invention provides a solar thermodynamic system control method and device and relates to the technical field of thermodynamic system control, and the method comprises the steps that the working medium temperature of an outlet of a heat collector array and the temperature of a heat storage water tank are obtained, and starting and stopping of a heat collection circulating pump are controlled according to the working medium temperature and the temperature of the heat storage water tank; and the water inlet pipeline temperature, the heating pipeline temperature and the hot water pipeline temperature are obtained, and the electric tracing band and the corresponding pipeline circulating pump are controlled according to the water inlet pipeline temperature, the heating pipeline temperature and the hot water pipeline temperature. By controlling each module in the solar thermodynamic system according to the temperature, the operation fault of the thermodynamic system caused by too low temperature is avoided, and the operation efficiency of the thermodynamic system is improved.

Description

Technical Field

[0001] The present application relates to the technical field of thermal system control, and in particular to a solar thermal system control method and device. Background Art

[0002] Thermal systems are a technology that uses solar energy or other energy sources to convert heat into usable forms and store it for various uses in daily life. For thermal systems located in plateau areas, due to the high altitude, low atmospheric pressure and thin air, the heat dissipation rate is accelerated at night, resulting in a large temperature difference between day and night. Such environmental conditions pose challenges to the stability and efficiency of thermal systems. Summary of the invention

[0003] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0004] To this end, the first objective of the present application is to provide a solar thermal system control method.

[0005] The second object of the present application is to provide a device.

[0006] The third objective of the present application is to provide an electronic device.

[0007] A fourth objective of the present application is to provide a computer-readable storage medium.

[0008] A fifth object of the present application is to provide a computer program product.

[0009] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a solar thermal system control method, including:

[0010] Obtaining the working fluid temperature and the hot water storage tank temperature at the outlet of the collector array, and controlling the start and stop of the heat collection circulation pump according to the working fluid temperature and the hot water storage tank temperature;

[0011] The water inlet pipe temperature, heating pipe temperature and hot water pipe temperature are obtained, and the electric heating tape and the corresponding pipe circulation pump are controlled according to the water inlet pipe temperature, heating pipe temperature and hot water pipe temperature.

[0012] Optionally, controlling the start and stop of the heat collection circulation pump according to the working medium temperature and the hot water storage tank temperature includes:

[0013] Calculating the temperature difference between the working fluid temperature and the hot water storage tank temperature;

[0014] Configure a first temperature threshold corresponding to the temperature difference, and configure a second temperature threshold corresponding to the water tank temperature;

[0015] The temperature difference is compared with the first temperature threshold, and the water tank temperature is compared with the second temperature threshold, and the start and stop of the heat collection circulation pump are controlled according to the comparison result.

[0016] Optionally, controlling the start and stop of the heat collection circulation pump according to the comparison result includes:

[0017] In response to the temperature difference being greater than or equal to the first temperature threshold, and the water tank temperature being less than the second temperature threshold, turning on the heat collection circulation pump, and turning on the electric heater, the electric heater being used to deheat the hot water storage tank;

[0018] In response to the temperature difference being greater than or equal to the first temperature threshold, and the water tank temperature being greater than or equal to the second temperature threshold, starting the heat collection circulation pump;

[0019] In response to the temperature difference being less than the first temperature threshold and the water tank temperature being greater than or equal to the second temperature threshold, shutting down the heat collection circulation pump;

[0020] In response to the temperature difference being less than the first temperature threshold and the water tank temperature being less than the second temperature threshold, the heat collection circulation pump is turned off and the electric heater is turned on.

[0021] Optionally, the method further includes:

[0022] Configure the heating period and monitor the current time in real time;

[0023] In response to the current time belonging to the heating period, turning on the electric heater;

[0024] In response to the current time not belonging to the heating period, the electric heater is turned off.

[0025] Optionally, the controlling of the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature includes:

[0026] In response to the water inlet pipeline temperature being lower than a preset third temperature threshold, turning on the electric heating belt and pipeline circulation pump corresponding to the water inlet pipeline;

[0027] In response to the water inlet pipeline temperature being greater than or equal to the third temperature threshold, the electric heating belt and the pipeline circulation pump corresponding to the water inlet pipeline are turned off.

[0028] Optionally, the controlling of the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature includes:

[0029] In response to the heating pipeline temperature being lower than a preset third temperature threshold, turning on the electric heating belt and pipeline circulation pump corresponding to the heating pipeline;

[0030] In response to the heating pipeline temperature being greater than or equal to the third temperature threshold, the electric heating tape and pipeline circulation pump corresponding to the heating pipeline are turned off.

[0031] Optionally, the controlling of the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature includes:

[0032] In response to the hot water pipeline temperature being lower than a preset third temperature threshold, turning on the electric heating belt and pipeline circulation pump corresponding to the water inlet pipeline;

[0033] In response to the hot water pipeline temperature being greater than or equal to the third temperature threshold, the electric heating tape and the pipeline circulation pump corresponding to the water inlet pipeline are turned off.

[0034] To achieve the above-mentioned purpose, the second embodiment of the present application proposes a solar thermal system control device, including:

[0035] The first control module is used to obtain the working fluid temperature at the outlet of the collector array and the temperature of the hot water storage tank, and control the start and stop of the heat collection circulation pump according to the working fluid temperature and the temperature of the hot water storage tank;

[0036] The second control module is used to obtain the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature, and control the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature.

[0037] To achieve the above-mentioned purpose, the third aspect of the present application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

[0038] The memory stores computer-executable instructions;

[0039] The processor executes the computer-executable instructions stored in the memory to implement the method as described in any one of the first aspects.

[0040] To achieve the above-mentioned purpose, the fourth aspect embodiment of the present application proposes a computer-readable storage medium, in which computer-readable storage medium is stored computer execution instructions, and when the computer execution instructions are executed by a processor, they are used to implement the method as described in any one of the first aspects.

[0041] To achieve the above-mentioned purpose, the fifth aspect of the present application proposes a computer program product, which implements any method in the first aspect when executed by a processor.

[0042] The solar thermal system control method, device, electronic device and storage medium provided in the present application can dynamically control the start and stop of the heat collection circulation pump according to the working fluid temperature at the outlet of the collector array and the temperature of the hot water storage tank. In this way, the heat collection circulation pump can be stopped when additional heat is not needed, saving electricity consumption and reducing unnecessary heat loss. By obtaining the temperature of the water inlet pipeline, heating pipeline and hot water pipeline, the working state of the electric heating tape and the corresponding pipeline circulation pump can be accurately controlled according to these temperature values. In this way, sufficient heat can be provided where heat is needed, and the heat supply can be reduced where heat is not needed, thereby improving the efficiency of the overall system. By finely regulating the temperature of each part, unnecessary energy consumption can be effectively reduced to achieve the purpose of energy saving. Especially at night or in low temperature environments, energy consumption can be further reduced by turning off unnecessary circulation pumps and electric heating tapes.

[0043] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0045] Figure 1 A schematic flow chart of a solar thermal system control method provided in an embodiment of the present application;

[0046] Figure 2 A schematic diagram of parameter changes in a heat collection and storage link provided in an embodiment of the present application;

[0047] Figure 3 A schematic diagram of the heat collection power of a collector and the heat power consumed by domestic hot water provided in an embodiment of the present application;

[0048] Figure 4 A schematic diagram of temperature change of domestic water provided in an embodiment of the present application;

[0049] Figure 5 A schematic diagram of heat collection power and heating power of a collector provided in an embodiment of the present application;

[0050] Figure 6 A schematic diagram of temperature change of a water pipeline provided in an embodiment of the present application;

[0051] Figure 7 A schematic structural diagram of a solar thermal system control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0053] In the plateau area, due to its special geographical location, there is plenty of sunshine and the temperature drops sharply at night, which brings unique technical challenges to the thermal system. Specific problems mainly include: Increased risk of pipeline blockage: On cold nights, due to the drop in temperature, the liquid flowing through the thermal system may solidify or freeze, forming ice crystals to block the pipeline and affect the normal heat transfer. This will not only reduce the operating efficiency of the system, but also may damage the pipeline and other related equipment. Increased heat loss: The atmospheric pressure in the plateau area is low and the air is thin, which makes it easier for heat to dissipate into the surrounding environment. Therefore, even a large amount of heat collected during the day may be lost quickly at night, resulting in inefficient system. Difficulty in system startup: When the temperature rises in the morning, due to the low temperature at night, it may be difficult for the system to resume operation quickly, and it will take more time and energy to thaw and restart. Increased safety risks: Frozen blockage may cause abnormal increase in system pressure, and even cause safety accidents such as leakage or explosion, threatening the safety of personnel and property.

[0054] To address this problem, the present invention provides a solar thermal system control method. Figure 1 The following is a flow chart of a solar thermal system control method provided in an embodiment of the present application. Figure 1 As shown, the method comprises the following steps:

[0055] Step 101, obtaining the working fluid temperature at the outlet of the collector array and the temperature of the hot water storage tank, and controlling the start and stop of the heat collection circulation pump according to the working fluid temperature and the temperature of the hot water storage tank;

[0056] Step 102, obtaining the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature, and controlling the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature.

[0057] Optionally, the step 101 controls the start and stop of the heat collection circulation pump according to the working medium temperature and the temperature of the hot water storage tank, including:

[0058] Calculating the temperature difference between the working fluid temperature and the hot water storage tank temperature;

[0059] Configure a first temperature threshold corresponding to the temperature difference, and configure a second temperature threshold corresponding to the water tank temperature;

[0060] The temperature difference is compared with the first temperature threshold, and the water tank temperature is compared with the second temperature threshold, and the start and stop of the heat collection circulation pump are controlled according to the comparison result.

[0061] Optionally, controlling the start and stop of the heat collection circulation pump according to the comparison result includes:

[0062] In response to the temperature difference being greater than or equal to the first temperature threshold, and the water tank temperature being less than the second temperature threshold, turning on the heat collection circulation pump, and turning on the electric heater, the electric heater being used to deheat the hot water storage tank;

[0063] In response to the temperature difference being greater than or equal to the first temperature threshold, and the water tank temperature being greater than or equal to the second temperature threshold, starting the heat collection circulation pump;

[0064] In response to the temperature difference being less than the first temperature threshold and the water tank temperature being greater than or equal to the second temperature threshold, shutting down the heat collection circulation pump;

[0065] In response to the temperature difference being less than the first temperature threshold and the water tank temperature being less than the second temperature threshold, the heat collection circulation pump is turned off and the electric heater is turned on.

[0066] Figure 2 A schematic diagram of parameter changes in a heat collection and storage link provided in an embodiment of the present application, such as Figure 2 As shown in the figure, before 9:16 in the morning, the temperature of the antifreeze liquid in the collector remained low, decreasing from -5.4℃ at midnight to the lowest value of -15.5℃; thereafter, with the increase of solar irradiance, the temperature of the antifreeze liquid gradually increased. At 11:15, the difference between the antifreeze liquid temperature and the water storage tank temperature was greater than the set threshold (here set to 8℃), and the collector circulation pump was turned on with a flow rate of about 5m 3 / h, the collector starts the heat collection function; within a short time after the collector circulation pump is turned on (about 5 minutes), the collector outlet temperature drops rapidly, and then the collector outlet temperature continues to rise, but because of the flow heat exchange of the collector working fluid, the collector outlet temperature increase rate slows down; starting from 16:47, as the irradiance decreases, the collector outlet temperature begins to decrease until the temperature difference between it and the hot water tank is lower than the set threshold (here set to -10℃), and the collector circulation pump stops running.

[0067] Optionally, the method further includes:

[0068] Configure the heating period and monitor the current time in real time;

[0069] In response to the current time belonging to the heating period, turning on the electric heater;

[0070] In response to the current time not belonging to the heating period, the electric heater is turned off.

[0071] The water tank temperature is controlled by setting a threshold and timing: when the water tank temperature is below 60°C, the electric heater is turned on; when the water tank temperature reaches 60°C, the electric heater is turned off, and when the water tank temperature is below 55°C (the threshold is 5°C), the electric heater is turned on again for heating. According to the heating demand of the house, the electric heater is also controlled by timing. The electric heater is not started from 7:00 to 21:00 every day; the electric heater is started from 21:00 to 7:00 the next day.

[0072] like Figure 2 As shown in, at 0:00 the water tank temperature was 51.8°C, 60°C lower, so the electric heater turned on for heating; at 4:01, the water tank temperature reached 60°C, the electric heater stopped heating, and then the water tank temperature began to drop until 5:50, when the water tank temperature dropped to 55°C, and the electric heater turned on for heating again; at 7:00, the electric heater was turned off by timing control, and the water tank temperature began to drop because the heat collection cycle had not yet started at this time; when the heat collection cycle was started at 11:15, the water tank temperature began to rise again, until the heat collection cycle stopped at 16:47, the water tank temperature stopped rising and began to drop; at 21:00, according to timing control, the electric heater was restarted, and the water temperature in the water tank began to rise.

[0073] Figure 3 A schematic diagram of the heat collection power of a collector and the heat power consumed by domestic hot water provided in an embodiment of the present application is shown in FIG. Figure 3 As shown in the figure, the heat storage tank used in the thermal system of this project is a 2.9-ton stainless steel round insulated water tank, which is equivalent to a volume of 2.9m 3 , that is, 2900L, which meets the requirement of daily hot water supply of no less than 40L. When the inlet water temperature is 20℃ and the water temperature in the hot water storage tank is 60℃, the heat storage capacity of the hot water storage tank is 487.2MJ. The proportion of solar energy for hot water supply can be obtained according to the following formula:

[0074]

[0075] η2 is the proportion of solar energy used for hot water supply, Figure 3 It can be seen that in a day, as time goes by, the demand for domestic hot water gradually increases and reaches a peak at 16:00-20:00 in the afternoon, and then the demand gradually decreases. The heat collection power of the large flat plate collector presents a nearly parabolic distribution in a day. It is calculated that in a day, the heat gain of the flat plate collector is 206755kJ, and the heat used for domestic hot water is 589502kJ. It can be calculated that the proportion of solar energy for hot water supply is 35.1%.

[0076] Figure 4 A schematic diagram of the temperature change of domestic water provided in the embodiment of the present application is shown in FIG. Figure 4 As shown, the hot water temperature ranges from 50-60°C.

[0077] Optionally, the step 102 of controlling the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature includes:

[0078] In response to the water inlet pipeline temperature being lower than a preset third temperature threshold, turning on the electric heating belt and pipeline circulation pump corresponding to the water inlet pipeline;

[0079] In response to the water inlet pipeline temperature being greater than or equal to the third temperature threshold, the electric heating belt and the pipeline circulation pump corresponding to the water inlet pipeline are turned off.

[0080] Optionally, the step 102 of controlling the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature includes:

[0081] In response to the heating pipeline temperature being lower than a preset third temperature threshold, turning on the electric heating belt and pipeline circulation pump corresponding to the heating pipeline;

[0082] In response to the heating pipeline temperature being greater than or equal to the third temperature threshold, the electric heating tape and pipeline circulation pump corresponding to the heating pipeline are turned off.

[0083] Optionally, the step 102 of controlling the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature includes:

[0084] In response to the hot water pipeline temperature being lower than a preset third temperature threshold, turning on the electric heating belt and pipeline circulation pump corresponding to the water inlet pipeline;

[0085] In response to the hot water pipeline temperature being greater than or equal to the third temperature threshold, the electric heating tape and the pipeline circulation pump corresponding to the water inlet pipeline are turned off.

[0086] For the heating part of the thermal collector system, the proportion of solar heating can be calculated according to the following formula:

[0087]

[0088] η3 is the proportion of solar heating, Figure 5 A schematic diagram of heat collection power and heating power of a collector provided in an embodiment of the present application is shown in FIG. Figure 5As shown in the figure, the heating power is maintained at about 50000 kJ / h as time goes by. It is calculated that the heat gained by the flat plate collector is 206755 kJ and the total heating heat is 7176249 kJ. It can be calculated that the proportion of solar heating is 28.8%. The room temperature fluctuates between 19.2℃ and 21℃ during the day, which meets the requirement of being greater than 18℃.

[0089] As the system is located in a high-altitude cold region, the water pipeline is very prone to freezing. In order to prevent this problem, this project adopts the method of installing electric heating and pipeline self-circulation for anti-freeze protection. Figure 6 A schematic diagram of water pipe temperature change provided in an embodiment of the present application is shown in FIG. Figure 6 As shown in the figure, it is clearly shown that during a whole day, the temperature of the water pipeline varies between 23.1℃ and 59.2℃, avoiding the risk of freezing and proving the effectiveness of the antifreeze strategy adopted in this project.

[0090] In order to implement the above embodiments, the present application also proposes a solar thermal system control device. Figure 7 This is a schematic diagram of the structure of a solar thermal system control device provided in an embodiment of the present application. Figure 7 As shown, the device comprises:

[0091] The first control module 710 is used to obtain the working fluid temperature at the outlet of the collector array and the temperature of the hot water storage tank, and control the start and stop of the heat collection circulation pump according to the working fluid temperature and the temperature of the hot water storage tank;

[0092] The second control module 720 is used to obtain the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature, and control the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature.

[0093] In order to implement the above embodiments, the present application also proposes an electronic device, comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method provided by the above embodiments.

[0094] In order to implement the above embodiments, the present application also proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the methods provided by the above embodiments.

[0095] In order to implement the above embodiments, the present application also proposes a computer program product, including a computer program, which implements the methods provided by the above embodiments when executed by a processor.

[0096] The collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in this application are in compliance with relevant laws and regulations and do not violate public order and good morals.

[0097] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.

[0098] The present application is expected to provide an implementation scheme for users to selectively block the use or access of personal information data. That is, the present disclosure is expected to provide hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, the risk can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.

[0099] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0100] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0101] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0102] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0103] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0104] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0105] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0106] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A solar thermal system control method, characterized in that: The following steps are involved: Obtaining the working fluid temperature and the hot water storage tank temperature at the outlet of the collector array, and controlling the start and stop of the heat collection circulation pump according to the working fluid temperature and the hot water storage tank temperature; The water inlet pipe temperature, heating pipe temperature and hot water pipe temperature are obtained, and the electric heating belt and the corresponding pipe circulation pump are controlled according to the water inlet pipe temperature, heating pipe temperature and hot water pipe temperature.

2. The method according to claim 1, characterized in that: The method of controlling the start and stop of the heat collection circulation pump according to the working medium temperature and the hot water storage tank temperature includes: Calculating the temperature difference between the working fluid temperature and the hot water storage tank temperature; Configure a first temperature threshold corresponding to the temperature difference, and configure a second temperature threshold corresponding to the water tank temperature; The temperature difference is compared with the first temperature threshold, and the water tank temperature is compared with the second temperature threshold, and the start and stop of the heat collection circulation pump are controlled according to the comparison result.

3. The method according to claim 2, characterized in that The controlling the start and stop of the heat collection circulation pump according to the comparison result comprises: In response to the temperature difference being greater than or equal to the first temperature threshold, and the water tank temperature being less than the second temperature threshold, turning on the heat collection circulation pump, and turning on the electric heater, the electric heater being used to deheat the hot water storage tank; In response to the temperature difference being greater than or equal to the first temperature threshold, and the water tank temperature being greater than or equal to the second temperature threshold, starting the heat collection circulation pump; In response to the temperature difference being less than the first temperature threshold and the water tank temperature being greater than or equal to the second temperature threshold, shutting down the heat collection circulation pump; In response to the temperature difference being less than the first temperature threshold and the water tank temperature being less than the second temperature threshold, the heat collection circulation pump is turned off and the electric heater is turned on.

4. The method according to claim 3, characterized in that The method further comprises: Configure the heating period and monitor the current time in real time; In response to the current time belonging to the heating period, turning on the electric heater; In response to the current time not belonging to the heating period, the electric heater is turned off.

5. The method according to claim 1, characterized in that The method of controlling the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature includes: In response to the water inlet pipeline temperature being lower than a preset third temperature threshold, turning on the electric heating belt and pipeline circulation pump corresponding to the water inlet pipeline; In response to the water inlet pipeline temperature being greater than or equal to the third temperature threshold, the electric heating belt and the pipeline circulation pump corresponding to the water inlet pipeline are turned off.

6. The method according to claim 1, characterized in that The method of controlling the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature includes: In response to the heating pipeline temperature being lower than a preset third temperature threshold, turning on the electric heating belt and pipeline circulation pump corresponding to the heating pipeline; In response to the heating pipeline temperature being greater than or equal to the third temperature threshold, the electric heating tape and pipeline circulation pump corresponding to the heating pipeline are turned off.

7. The method according to claim 1, characterized in that The method of controlling the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature includes: In response to the hot water pipeline temperature being lower than a preset third temperature threshold, turning on the electric heating belt and pipeline circulation pump corresponding to the water inlet pipeline; In response to the hot water pipeline temperature being greater than or equal to the third temperature threshold, the electric heating tape and the pipeline circulation pump corresponding to the water inlet pipeline are turned off.

8. A solar thermal system control device, characterized in that: include: The first control module is used to obtain the working fluid temperature at the outlet of the collector array and the temperature of the hot water storage tank, and control the start and stop of the heat collection circulation pump according to the working fluid temperature and the temperature of the hot water storage tank; The second control module is used to obtain the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature, and control the electric heating belt and the corresponding pipeline circulation pump according to the water inlet pipeline temperature, the heating pipeline temperature, and the hot water pipeline temperature.

9. An electronic device, characterized in that: include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 7 when executed by a processor.

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