Solar photo-thermal duplex supply coupling system suitable for plateau area

Abstract

The invention relates to the technical field of duplex supply coupling, in particular to a solar photo-thermal duplex supply coupling system suitable for a plateau district, which comprises a heat energy conversion module, a detection module, an adjustment service module and a prompt module, a user sets a hot water interval through the adjustment service module, the advantage of personalized customization is embodied, and the user experience is improved. A user who likes hot bath water or a user who is sensitive to temperature and needs moderate water temperature can adjust by himself / herself, the autonomy of the user to use hot water is enhanced, the prompt module adopts information such as a water consumption estimation method, the hot water temperature and the hot water interval to calculate the water volume in the load hot water interval in the water storage tank in real time and prompt the water volume to the user, and the user experience is improved. According to feedback of water consumption and temperature information, supply and use of hot water can be better coordinated, it is ensured that the hot water obtained through energy conversion is most reasonably applied, energy waste caused by excessive supply or unreasonable use of the hot water is avoided, and energy utilization of the whole system is more efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of dual-generation coupling, and in particular to a solar thermal dual-generation coupling system suitable for plateau areas. Background Art

[0002] As the global energy crisis intensifies and environmental awareness increases, solar energy, as a clean, renewable energy source, has received more and more attention. "Solar heating and hot water dual supply" means that the system has both heating and domestic hot water functions, which can provide heat for the building to keep the room at a certain temperature and make the residents feel comfortable. At the same time, it can also provide domestic hot water for the building to meet the residents' needs for hot water bathing, washing vegetables, washing hands, etc. The dual supply system can make full use of solar energy to provide heating and hot water for buildings, and has the advantages of energy saving, environmental protection, and economy.

[0003] During the operation of the solar heating and hot water dual-generation system, in order to meet the heating needs of the house, hot water with a higher temperature is usually collected to ensure that the house can be heated in a timely and effective manner. However, when users need to use hot water for bathing, problems arise. Since the hot water temperature required for heating is too high, if the system cannot adjust the hot water temperature in time, then these high-temperature hot water may bring serious safety hazards to users and easily cause burns to users.

[0004] If you want to get suitable warm water, you need to mix cold water and hot water in a certain proportion. However, during long-term use, if you cannot obtain the appropriate warm water surplus in advance, if you are not clear about the appropriate warm water surplus, there may be insufficient hot water in the middle of bathing, resulting in a sudden drop in water temperature, making people feel cold and uncomfortable, and may even cause a cold. In view of this, we propose a solar thermal dual-generation coupling system suitable for plateau areas. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the temperature of hot water used by a user for heating is too high and it is inconvenient to supply water through hot water.

[0006] To achieve the above object, the present invention provides a solar thermal dual power generation coupling system suitable for plateau areas, which can adjust the hot water temperature according to the user's demand for hot water, including a heat energy conversion module, a detection module, an adjustment service module and a prompt module;

[0007] The heat energy conversion module uses a solar collector to convert solar energy into heat energy to heat cold water, and the detection module uses a temperature detection method and an ultrasonic liquid level detection method to detect the hot water temperature, the cold water temperature, and the liquid levels of hot water and cold water;

[0008] The adjustment service module sets the hot water range based on the hot water temperature regulator, and adjusts the temperature of the converted hot water in the thermal energy conversion module according to the hot water range. The prompt module uses the water volume estimation method, hot water temperature, cold water temperature, hot water and cold water levels to estimate the liquid volume of hot water supply, and outputs a reminder signal to remind the staff.

[0009] As a further improvement of the present technical solution, the thermal energy conversion module includes a solar collector, which is installed outdoors through a bracket. A transparent cover is installed on the surface of the solar collector, and a heat absorption pipe is arranged at the bottom of the transparent cover, and the heat absorption pipe is made of metal material.

[0010] As a further improvement of the technical solution, the steps of converting solar energy into thermal energy using a solar collector in the thermal energy conversion module are as follows:

[0011] The sun transmits energy to the outside in the form of electromagnetic waves, namely solar radiation. Solar radiation contains photons of various frequencies. When solar radiation shines on the heat-absorbing pipe, the outer electrons of the atoms in the heat-absorbing pipe will interact with the photons.

[0012] According to the principle of photoelectric effect, electrons absorb the energy of photons and jump from the ground state to a higher energy level, causing atoms and molecules to enter an excited state;

[0013] The excited electrons interact with the lattice in the heat absorbing pipe, transferring energy to the lattice, intensifying the lattice vibration and increasing the temperature of the heat absorbing pipe.

[0014] According to the heat calculation formula: Q = mcΔT;

[0015] Where Q is the heat energy, m is the mass of the heat absorbing pipe, c is the specific heat capacity, and ΔT is the temperature change of the heat absorbing pipe;

[0016] As the absorbed heat increases, the temperature ΔT of the heat absorbing pipe continues to increase when the mass m and specific heat capacity c of the heat absorbing pipe remain unchanged;

[0017] When the temperature of the heat absorbing pipe increases, the thermal motion of atoms and molecules intensifies. At this time, the heat absorbing pipe contacts the cold water inside it, and the high-energy atoms in the heat absorbing pipe collide with the water molecules.

[0018] According to the principle of heat conduction, heat is always transferred from a high-temperature object to a low-temperature object. During the collision, part of the energy of the atoms in the heat-absorbing pipe will be transferred to the water molecules, causing the temperature of the cold water inside the heat-absorbing pipe to rise.

[0019] As a further improvement of the technical solution, the thermal energy conversion module further includes a water tank, the water tank is provided with a hot water tank and a cold water tank respectively, the solar collector and the hot water tank of the water tank are through-connected, and a control valve is installed inside the water tank;

[0020] The water storage tank is connected to the water inlet of the heating circulation pump through a control valve, and the water outlet of the heating circulation pump is connected to the heating radiator;

[0021] The water storage tank is also connected to the water outlet of the hot water circulation pump through a control valve, and the water outlet of the hot water circulation pump is connected to a hot water supply pipeline.

[0022] As a further improvement of the technical solution, the steps of the detection module using the temperature detection method to detect the hot water temperature are as follows:

[0023] The temperature detection method detects temperature based on the characteristic that the resistance value of the conductor changes with temperature;

[0024] When the temperature changes, the movement of free electrons inside the thermal resistor material is affected, causing the resistance value to change. The temperature is calculated based on the relationship between the resistance value and the temperature.

[0025]

[0026] Where t is the detection temperature, R t is the resistance of the thermal resistor when the temperature is -℃, and 0.385 is the known temperature coefficient.

[0027] As a further improvement of the technical solution, the detection module uses an infrared liquid level detection method to detect the cold water and hot water levels as follows:

[0028] The infrared liquid level detection method emits two high-frequency pulse sound waves to the cold water and hot water in the water storage tank respectively;

[0029] The two high-frequency pulse sound waves are reflected by the cold water and the hot water respectively, generating two reflected high-frequency pulse sound waves;

[0030]

[0031] Among them, S is the distance from the top of the water tank to the cold water and hot water, C is the propagation speed of the high-frequency pulse sound wave, and T is the round-trip time of the high-frequency pulse sound wave;

[0032] The total capacity V of the receiving water storage tank;

[0033] The liquid level of cold water and hot water in the water tank is: S 液 =VC.

[0034] As a further improvement of the technical solution, the adjustment service module includes a hot water temperature regulator, and the user sets the hot water range through the hot water temperature regulator;

[0035] receiving the hot water temperature in the hot water supply pipe detected by the detection module;

[0036] If the hot water temperature in the hot water supply pipe is ≠ the hot water range, a start signal is output to the hot water circulation pump to extract hot water and cold water in different proportions from the water storage tank and inject them into the hot water supply pipe to adjust the hot water temperature in the hot water supply pipe.

[0037] As a further improvement of the technical solution, the calculation formula for extracting different proportions of cold water and hot water in the adjustment service module is as follows:

[0038] Receiving the temperature and liquid level of cold water and hot water in the water storage tank detected by the detection module, and the hot water interval set by the user, and taking the middle value of the hot water interval as the hot water temperature to be achieved;

[0039] According to the law of conservation of heat, the temperature of the hot water after mixing

[0040] Among them, T mix is the temperature of the hot water after mixing, t 热 and t 冷 is the temperature of hot and cold water in the water storage tank, S 热液 and S 冷液 The level of hot and cold water in the water storage tank;

[0041]

[0042] Among them, T 中间值 is the middle value of the water interval;

[0043] Ratio of hot water to cold water:

[0044] Example calculation:

[0045] The hot water range is [40℃, 50℃], then

[0046] Hot water temperature in the water tank t 热 =60℃, cold water temperature is t 冷 =10℃;

[0047] According to the above formula That is, the volume ratio of hot water and cold water extracted is 7:3.

[0048] As a further improvement of the technical solution, the steps of the prompt module using the water volume estimation method, hot water temperature, cold water temperature and hot water and cold water levels to estimate the adjusted hot water heating liquid volume are as follows:

[0049] Receive cold water S in the water storage tank 冷液 With hot water 热液 The liquid level, the hot water to cold water mixing ratio [B, N] and the cross-sectional area A of the water storage tank;

[0050] The amount of cold water in the water tank is: Sh =S 冷液 ×A;

[0051] The amount of hot water in the water tank is: S c =S 热液 ×A;

[0052] When calculating the mixing ratio of hot water and cold water [B, N], the hot water temperature after mixing = the minimum value N of the hot water interval;

[0053] Receive the hot water and cold water mixing ratio calculated in the adjustment service module:

[0054] at this time,

[0055] Among them, S 混 It is the amount of liquid in the hot water range after cold water and hot water are mixed, and output S 混 Alert staff.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] 1. In the solar thermal cogeneration coupling system suitable for plateau areas, the thermal energy conversion module uses a solar collector to convert solar energy into thermal energy to heat cold water. Solar energy is a free energy source. Using solar energy for heating and hot water can greatly reduce energy consumption and save energy costs. At the same time, solar energy is a clean and renewable energy source. Using solar energy for heating and hot water will not produce any pollutants, and hot water and cold water are stored separately in water tanks. When users need to use hot water, the hot water circulation pump draws cold water and hot water in different proportions through a control valve, thereby reducing the hot water used for heating to the hot water range for users to use. By heating and storing cold water, when users need hot water, they can accurately draw cold water and hot water in different proportions, avoiding energy waste caused by the need to mix a large amount of cold water due to the high temperature of the hot water.

[0058] 2. In this solar thermal cogeneration coupling system suitable for plateau areas, users can set the hot water range by adjusting the service module, which reflects the advantage of personalized customization. Users who like hotter bath water or users who are sensitive to temperature and need moderate water temperature can adjust it by themselves, which enhances the user's autonomy in using hot water. The prompt module uses water consumption estimation method, hot water temperature and hot water range information to calculate the water volume in the load hot water range in the water tank in real time, and prompt the user. According to the feedback of water consumption and temperature information, it can better coordinate the supply and use of hot water, ensure that the hot water converted from energy is used in the most reasonable way, avoid energy waste caused by excessive supply or unreasonable use of hot water, and make the energy utilization of the entire system more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is the overall module principle diagram of the present invention.

[0060] The meaning of each number in the figure is:

[0061] 100, thermal energy conversion module; 200, detection module; 300, adjustment service module; 400, prompt module. DETAILED DESCRIPTION

[0062] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] A solar thermal cogeneration system suitable for plateau areas, comprising a heat energy conversion module 100, a detection module 200, an adjustment service module 300 and a prompt module 400;

[0064] Solar energy is an almost endless renewable energy source. The sun rises every day and delivers a large amount of energy to the earth. Compared with traditional fossil energy sources such as coal, oil and natural gas, solar energy will not be exhausted due to use. In the context of growing global energy demand and the crisis of depletion of traditional energy sources, the use of solar energy is a sustainable way of energy utilization. The thermal energy conversion module 100 uses a solar collector to convert solar energy into thermal energy to heat cold water. Using solar collectors to convert solar energy into thermal energy can reduce dependence on non-renewable energy sources and reduce the pressure on energy supply. In the long run, it helps to achieve sustainable energy supply and is also of great significance to environmental protection and coping with global climate change.

[0065] The heat energy conversion module 100 includes a solar collector, which is installed outdoors through a bracket. A transparent cover is installed on the surface of the solar collector to prevent the outdoor splashing debris from damaging the heat absorption pipe and ensure that the heat absorption pipe can fully absorb sunlight. A heat absorption pipe is arranged at the bottom of the transparent cover. The heat absorption pipe is made of metal material. Metal is a good conductor of heat and has a high thermal conductivity. It can ensure that the heat generated by solar radiation can be quickly and effectively transferred from the surface of the heat absorption pipe to the cold water inside it.

[0066] Metal materials are composed of atoms or ions arranged in a lattice at the microscopic level;

[0067] In the heat-absorbing pipe made of metallic copper, copper atoms are arranged in the form of a face-centered cubic lattice. The lattice structure is like a "micro-building". Copper atoms are the "bricks" that construct this building. Their regular arrangement constitutes the basic framework of the heat-absorbing pipe material.

[0068] The steps of the heat energy conversion module 100 using a solar collector to convert solar energy into heat energy are as follows:

[0069] The sun transmits energy to the outside in the form of electromagnetic waves, namely solar radiation. Solar radiation contains photons of various frequencies. When solar radiation shines on the heat-absorbing pipe, the outer electrons of the atoms in the heat-absorbing pipe will interact with the photons.

[0070] According to the principle of photoelectric effect, electrons absorb the energy of photons and jump from the ground state to a higher energy level, causing atoms and molecules to enter an excited state;

[0071] The excited electrons interact with the lattice in the heat absorbing pipe, transferring energy to the lattice, intensifying the lattice vibration and increasing the temperature of the heat absorbing pipe.

[0072] According to the heat calculation formula: Q = mcΔT;

[0073] Where Q is the heat energy, m is the mass of the heat absorbing pipe, c is the specific heat capacity, and ΔT is the temperature change of the heat absorbing pipe;

[0074] As the absorbed heat increases, the temperature ΔT of the heat absorbing pipe continues to increase when the mass m and specific heat capacity c of the heat absorbing pipe remain unchanged;

[0075] When the temperature of the heat absorbing pipe increases, the thermal motion of atoms and molecules intensifies. At this time, the heat absorbing pipe contacts the cold water inside it, and the high-energy atoms in the heat absorbing pipe collide with the water molecules.

[0076] According to the principle of heat conduction, heat is always transferred from a high-temperature object to a low-temperature object. During the collision, part of the energy of the atoms in the heat-absorbing pipe will be transferred to the water molecules, causing the temperature of the cold water inside the heat-absorbing pipe to rise.

[0077] The solar thermal conversion process does not involve combustion, and there is no risk of gas leakage, explosion, or other safety hazards such as electric water heater leakage. In plateau areas, some buildings may be relatively scattered, and the maintenance of electricity and gas facilities is relatively difficult. This safe heating method can be used with confidence by residents, reducing safety accidents caused by improper use of energy.

[0078] The heat energy conversion module 100 also includes a water storage tank, which is provided with a hot water tank and a cold water tank, respectively, and the solar collector is connected to the hot water tank of the water storage tank; a control valve is installed inside the water storage tank;

[0079] The water storage tank is connected to the water inlet of the heating circulation pump through a control valve, and the water outlet of the heating circulation pump is connected to the heating radiator;

[0080] The water storage tank is also connected to the water outlet of the hot water circulation pump through a control valve, and the water outlet of the hot water circulation pump is connected to a hot water supply pipeline.

[0081] In the hot water supply system, the temperature of hot water is a key parameter. Since hot water has different uses, in order to meet the diverse needs of users, it is necessary to accurately detect the temperature of hot water. The detection module 200 uses the temperature detection method and the ultrasonic liquid level detection method to detect the hot water temperature, the cold water temperature, and the liquid levels of hot water and cold water. The temperature detection can detect temperature abnormalities in time to avoid system failures and safety accidents.

[0082] The steps of the detection module 200 using the temperature detection method to detect the hot water temperature are as follows:

[0083] The temperature detection method detects temperature based on the characteristic that the resistance value of the conductor changes with temperature;

[0084] When the temperature changes, the movement of free electrons inside the thermal resistor material is affected, causing the resistance value to change. The temperature is calculated based on the relationship between the resistance value and the temperature.

[0085]

[0086] Where t is the detection temperature, R t is the resistance of the thermal resistor when the temperature is between 0 and 100°C, and 0.385 is the known temperature coefficient.

[0087] The detection module 200 uses an infrared liquid level detection method to detect the cold water and hot water levels in the following steps:

[0088] The infrared liquid level detection method emits two high-frequency pulse sound waves to the cold water and hot water in the water storage tank respectively;

[0089] The two high-frequency pulse sound waves are reflected by the cold water and the hot water respectively, generating two reflected high-frequency pulse sound waves;

[0090]

[0091] Among them, S is the distance from the top of the water tank to the cold water and hot water, C is the propagation speed of the high-frequency pulse sound wave, and T is the round-trip time of the high-frequency pulse sound wave;

[0092] The total capacity V of the receiving water storage tank;

[0093] The liquid level of cold water and hot water in the water tank is: S 液 =VC.

[0094] Changes in ambient temperature can affect the use of hot water. For example, in cold winter, hot water with a higher temperature may be needed for heating to maintain indoor warmth; in warmer seasons, hot water with a lower temperature may be sufficient for daily use. The adjustment service module 300 sets the hot water interval based on the hot water temperature regulator, and adjusts the temperature of the hot water converted in the heat energy conversion module 100 according to the hot water interval. The hot water temperature interval is adjusted according to actual needs to avoid overheating. If hot water is always produced at a fixed high temperature, energy waste will be caused when high-temperature hot water is not needed.

[0095] The adjustment service module 300 includes a hot water temperature regulator, through which the user sets the hot water range;

[0096] receiving the hot water temperature in the hot water supply pipe detected by the detection module 200;

[0097] If the hot water temperature in the hot water supply pipe is ≠ the hot water range, a start signal is output to the hot water circulation pump to extract hot water and cold water in different proportions from the water storage tank and inject them into the hot water supply pipe to adjust the hot water temperature in the hot water supply pipe.

[0098] For example:

[0099] The user sets the hot water temperature range to 38-42°C, and the detection module 200 detects that the hot water temperature in the hot water supply pipe is 50°C, which exceeds the set range;

[0100] At this time, the adjustment service module 300 outputs a start signal, the hot water circulation pump starts, and an appropriate amount of cold water is drawn from the water tank and mixed with hot water and then injected into the hot water supply pipe, so that the water temperature drops to an appropriate range to meet the user's needs for comfortable bathing.

[0101] The present invention also considers that if only a fixed target temperature is set, when the system is disturbed by external factors, such as changes in the cold water supply pressure, changes in the instantaneous heat absorption efficiency of the solar collector, etc., the hot water temperature may fluctuate greatly. By setting a temperature range, the user can make fine adjustments within the range to make the hot water temperature relatively stable, avoiding the user from experiencing sudden changes in water temperature. For example, when the cold water supply pressure suddenly increases, causing the hot water temperature to drop, the water temperature can be stabilized within a suitable range by reducing the cold water supply ratio within the range allowed by the temperature range.

[0102] The calculation formula for extracting different proportions of cold water and hot water in the adjustment service module 300 is as follows:

[0103] The temperature and liquid level of the cold water and the hot water in the water storage tank detected by the detection module 200 and the hot water interval set by the user are received, and the middle value of the hot water interval is taken as the hot water temperature to be achieved. The middle value is the target to reduce the number of frequent adjustments due to temperature fluctuations;

[0104] For example, if the hot water range is 45-50°C and the target temperature is 47.5°C, when the hot water temperature fluctuates between 46-49°C, there may be no need to make adjustments immediately. However, if the upper limit of the range is 50°C as the target, the system may frequently activate the adjustment mechanism as long as the temperature is below 50°C, increasing the burden on the system and the wear of the equipment.

[0105] According to the law of conservation of heat, the temperature of the hot water after mixing

[0106] Among them, T mix is the temperature of the hot water after mixing, t 热 and t 冷 is the temperature of hot and cold water in the water storage tank, S 热液 and S 冷液 The level of hot and cold water in the water storage tank;

[0107]

[0108] Among them, T 中间值 is the middle value of the water interval;

[0109] Ratio of hot water to cold water:

[0110] Example calculation:

[0111] The hot water range is [40℃, 50℃], then

[0112] Hot water temperature in the water tank t 热 =60℃, cold water temperature is t 冷 =10℃;

[0113] According to the above formula That is, the volume ratio of hot water and cold water extracted is 7:3.

[0114] In order to realize the intelligent operation of the system, it is necessary to make decisions based on accurate data. The prompt module 400 adopts the water quantity estimation method, hot water temperature, cold water temperature, hot water and cold water levels to estimate the liquid volume of hot water supply, and outputs a reminder signal to remind the staff. The user can know the hot water supply situation in advance and arrange the use of hot water reasonably to avoid the embarrassing situation of water temperature change or running out of hot water when starting to use hot water when there is insufficient hot water, thereby improving the convenience of use.

[0115] The steps of the prompt module 400 using the water quantity estimation method, hot water temperature, cold water temperature and hot water and cold water levels to estimate the adjusted hot water heating liquid quantity are as follows:

[0116] Receive cold water S in the water storage tank 冷液 With hot water 热液The liquid level, the hot water to cold water mixing ratio [B, N] and the cross-sectional area A of the water storage tank;

[0117] The amount of cold water in the water tank is: S h =S 冷液 ×A;

[0118] The amount of hot water in the water tank is: S c =S 热液 ×A;

[0119] When calculating the mixing ratio of hot water and cold water [B, N], the hot water temperature after mixing = the minimum value N of the hot water interval;

[0120] The hot water and cold water mixing ratio calculated in the receiving adjustment service module 300 is:

[0121] at this time,

[0122] Among them, S 混 It is the amount of liquid in the hot water range after cold water and hot water are mixed, and output S 混 Alert staff.

[0123] By adjusting the service module 300 to continuously monitor and estimate the amount of hot water, a system fault can be detected. For example, if under normal circumstances, the estimated amount of hot water suddenly decreases significantly, there may be a pipe leak or a water tank failure. At this time, the prompt module 400 can issue a fault warning to facilitate the user to repair it in time.

[0124] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A solar thermal combined power generation system suitable for plateau areas, characterized in that: It comprises a heat energy conversion module (100), a detection module (200), an adjustment service module (300) and a prompt module (400); The heat energy conversion module (100) uses a solar collector to convert solar energy into heat energy to heat cold water, and during the conversion process, the detection module (200) uses a temperature detection method and an ultrasonic liquid level detection method to detect the hot water temperature, the cold water temperature, and the liquid levels of the hot water and the cold water; The adjustment service module (300) sets the hot water interval based on the hot water temperature regulator, and converts the hot water temperature in the heat energy conversion module (100) by adjusting the hot water interval. The prompt module (400) estimates the liquid volume of hot water heating using a water volume estimation method, water temperature and water level, and outputs a reminder signal to remind the staff.

2. The solar thermal combined power generation system suitable for plateau areas according to claim 1 is characterized by: The heat energy conversion module (100) comprises a solar thermal collector, which is installed outdoors via a bracket. A transparent cover is installed on the surface of the solar thermal collector, and a heat absorbing pipe is arranged at the bottom of the transparent cover. The heat absorbing pipe is made of metal material.

3. The solar thermal combined power generation system suitable for plateau areas according to claim 2 is characterized by: The steps of converting solar energy into thermal energy using a solar collector in the thermal energy conversion module (100) are as follows: The sun transmits energy to the outside in the form of electromagnetic waves, namely solar radiation. Solar radiation contains photons of various frequencies. When solar radiation shines on the heat-absorbing pipe, the outer electrons of the atoms in the heat-absorbing pipe will interact with the photons. According to the principle of photoelectric effect, electrons absorb the energy of photons and jump from the ground state to a higher energy level, causing atoms and molecules to enter an excited state; The excited electrons interact with the lattice in the heat absorbing pipe, transferring energy to the lattice, intensifying the lattice vibration and increasing the temperature of the heat absorbing pipe. According to the heat calculation formula: Q = mcΔT; Where Q is the heat energy, m is the mass of the heat absorbing pipe, c is the specific heat capacity, and ΔT is the temperature change of the heat absorbing pipe; As the absorbed heat increases, the temperature ΔT of the heat absorbing pipe continues to increase when the mass m and specific heat capacity c of the heat absorbing pipe remain unchanged; When the temperature of the heat absorbing pipe increases, the thermal motion of atoms and molecules intensifies. At this time, the heat absorbing pipe contacts the cold water inside it, and the high-energy atoms in the heat absorbing pipe collide with the water molecules. According to the principle of heat conduction, heat is always transferred from a high-temperature object to a low-temperature object. During the collision, part of the energy of the atoms in the heat-absorbing pipe is transferred to the water molecules, causing the temperature of the cold water inside the heat-absorbing pipe to rise.

4. The solar thermal combined power generation system suitable for plateau areas according to claim 3 is characterized by: The thermal energy conversion module (100) further comprises a water storage tank, the water storage tank is provided with a hot water tank and a cold water tank respectively, the solar collector and the hot water tank of the water storage tank are through-connected, and a control valve is installed inside the water storage tank; The water storage tank is connected to the water inlet of the heating circulation pump through the control valve, and the water outlet of the heating circulation pump is connected to the heating radiator; The water storage tank is also connected to the water outlet of the hot water circulation pump through a control valve, and the water outlet of the hot water circulation pump is connected to a hot water supply pipeline.

5. The solar thermal combined power generation system suitable for plateau areas according to claim 1 is characterized by: The steps of the detection module (200) detecting the hot water temperature using the temperature detection method are as follows: The temperature detection method detects temperature based on the characteristic that the resistance value of the conductor changes with temperature; When the temperature changes, the movement of free electrons inside the thermal resistor material is affected, causing the resistance value to change. The temperature is calculated based on the relationship between the resistance value and the temperature. Where t is the detection temperature, R t is the resistance of the thermal resistor when the temperature is between 0 and 100°C, and 0.385 is the known temperature coefficient.

6. The solar thermal combined power generation system suitable for plateau areas according to claim 1 is characterized by: The detection module (200) uses an infrared liquid level detection method to detect the cold water and hot water levels in the following steps: The infrared liquid level detection method emits two high-frequency pulse sound waves to the cold water and hot water in the water storage tank respectively; The two high-frequency pulse sound waves are reflected by the cold water and the hot water respectively, generating two reflected high-frequency pulse sound waves; Among them, S is the distance from the top of the water tank to the cold water and hot water, C is the propagation speed of the high-frequency pulse sound wave, and T is the round-trip time of the high-frequency pulse sound wave; The total capacity V of the receiving water storage tank; The liquid level of cold water and hot water in the water tank is: S 液 =VC.

7. The solar thermal combined power generation system suitable for plateau areas according to claim 1 is characterized by: The adjustment service module (300) comprises a hot water temperature regulator, and a user sets a hot water range through the hot water temperature regulator; receiving the hot water temperature in the hot water supply pipe detected by the detection module (200); If the hot water temperature in the hot water supply pipe is ≠ the hot water range, a start signal is output to the hot water circulation pump to extract hot water and cold water in different proportions from the water storage tank and inject them into the hot water supply pipe to adjust the hot water temperature in the hot water supply pipe.

8. The solar thermal combined power generation system suitable for plateau areas according to claim 1 is characterized by: The calculation formula for extracting different proportions of cold water and hot water in the adjustment service module (300) is as follows: receiving the temperature and liquid level of cold water and hot water in the water storage tank detected by the detection module (200) and the hot water interval set by the user, and taking the middle value of the hot water interval as the hot water temperature to be achieved; According to the law of conservation of heat, the temperature of the hot water after mixing Among them, T mix is the temperature of the hot water after mixing, t 热 and t 冷 is the temperature of hot and cold water in the water storage tank, S 热液 and S 冷液 The level of hot and cold water in the water storage tank; Among them, T 中间值 is the middle value of the water interval; Ratio of hot water to cold water:

9. The solar thermal combined power generation system suitable for plateau areas according to claim 1 is characterized by: The steps of the prompt module (400) using the water quantity estimation method, hot water temperature, cold water temperature and hot water and cold water levels to estimate the adjusted hot water heating liquid quantity are as follows: Receive cold water S in the water storage tank 冷液 With hot water 热液 The liquid level, the hot water to cold water mixing ratio [B, N] and the cross-sectional area A of the water storage tank; The amount of cold water in the water tank is: S h =S 冷液 ×A; The amount of hot water in the water tank is: S c =S 热液 ×A; When calculating the mixing ratio of hot water and cold water [B, N], the hot water temperature after mixing = the minimum value N of the hot water interval; Receiving the hot water and cold water mixing ratio calculated in the adjustment service module (300): at this time, Among them, S 混 It is the amount of liquid in the hot water range after cold water and hot water are mixed, and output S 混 Alert staff.

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