Assembly type multi-water-tank stepped heat exchange solar water heating system
Through the assembled multi-tank step heat exchange system, the base station and electrical rectifier are used to charge the battery, and the pipeline control is optimized to solve the problems of sealing and construction efficiency in the solar water heating system, and achieve efficient heat transfer and temperature stability.
Patent Information
- Application Number
- CN202511149489.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-18
- Publication Date
- 2025-10-28
AI Technical Summary
In solar water heating systems, multi-tank step heat exchange technology increases the number of pipe interfaces in the system, making it difficult to control the sealing. In addition, traditional construction methods are inefficient and cannot meet the needs of prefabricated buildings.
An assembled multi-tank stepped heat exchange system is adopted, with the main frame formed by a base platform, assembled wall panels and load-bearing reinforcement rods. An electrical rectifier is added to charge the battery, and the electric control body is used for heating. Photovoltaic panels and inverters are combined to provide electricity, and the installation of pipeline control valves and export valves is optimized to achieve flexible water and electricity separation and heating transition.
It reduces the difficulty of sealing installation, improves construction efficiency and flexibility, enhances the adjustment ability of the system, reduces maintenance and replacement costs, and achieves efficient heat transfer and temperature stability.
Smart Images

Figure CN120845939A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of solar energy equipment technology, specifically a prefabricated multi-tank stepped heat exchange solar water heating system. Background Art
[0002] Multi-tank stepped heat exchange is a highly efficient heat exchange technology typically used in systems requiring large-scale heat transfer. This technology achieves phased heat exchange by using multiple tanks, each with a temperature gradually approaching that of the previous tank. Specifically, the hot fluid transfers heat gradually between the high-temperature and low-temperature tanks through a series of stepped temperature differences, reducing the inefficiency and energy loss caused by excessive temperature differences.
[0003] In solar water heating systems, the transfer of hot water usually relies on the connection of water pipes. Multi-tank stepped heat exchange technology involves the connection of multiple tanks and heat transfer, which inevitably increases the number of pipe interfaces in the system. These interfaces may become key difficulties in sealing control during construction and installation. The corresponding sealing materials will require frequent maintenance and component replacement due to aging and the thermal expansion and contraction effect caused by continuous temperature changes.
[0004] With the increasing maturity of prefabricated construction in civil engineering, traditional on-site construction methods are gradually being replaced by a model of mass production in factories and direct assembly on-site. This prefabricated construction model, due to its high degree of standardization and modularity in design, manufacturing, and construction, is becoming an important direction for the future development of the construction industry. Mass production in factories can effectively improve construction efficiency and quality. All building components, such as walls, floor slabs, beams, and columns, can be processed and produced in factories according to precise design standards. Summary of the Invention
[0005] The purpose of this invention is to provide a prefabricated multi-tank stepped heat exchange solar water heating system in order to solve the problems mentioned above.
[0006] The technical solution adopted in this invention is as follows: A prefabricated multi-tank stepped heat exchange solar water heating system includes a reference platform. Prefabricated wall panels are fixedly connected to the outer surfaces of both sides of the reference platform. A solar cover plate is detachably connected to the upper surface of the prefabricated wall panels. An electrical rectifier is fixedly connected to the inner surface of the prefabricated wall panels. A load-bearing reinforcing rod is fixedly connected to the lower surface of the prefabricated wall panels. A partition is fixedly connected to the upper surface of the load-bearing reinforcing rod. A storage battery is fixedly connected to the upper surface of the prefabricated wall panels next to the storage battery. An electrical control unit is fixedly connected to the upper surface of the prefabricated wall panels.
[0007] By adopting the above technical solution, the main body of the system consists of a reference platform, assembled wall panels, and load-bearing reinforcing rods forming the main frame. The reference platform is usually set on the south side to facilitate the reception of more solar energy. The length of the assembled wall panels corresponds to the water tank. In scenarios where expansion is required, the corresponding assembled wall panels are extended away from the reference platform to complete the prefabricated installation. The space is divided laterally by partitions to separate the water and electricity operation spaces. In this case, an electrical rectifier is added to the solar energy equipment for stepped heat exchange to charge the battery. Through the action of the main electrical control unit, the water tank is heated, thus playing a transitional role in the stepped heat exchange.
[0008] In a preferred embodiment, a water tank is fixedly connected to the upper surface of the load-bearing reinforcing rod on the side away from the battery, and a water guide plate is fixedly connected to the upper surface of the mounting wall panel on the side away from the reference platform.
[0009] By adopting the above technical solution, the water tank provides an independent water storage space, and the water guide plate provides rain protection on the upper side of the main frame consisting of the reference platform, the assembled wall panel, and the load-bearing reinforcing rod.
[0010] In a preferred embodiment, a negative pressure pump is fixedly connected to the outer surface of the assembled wall panel, an inlet valve is fixedly connected to the outer surface of the water tank input end, a mixing control box is provided on the outer surface of the water tank, and the inlet valve, the mixing control box and the electrical control body are electrically connected.
[0011] By adopting the above technical solution, the water inlet valve is opened and closed by electrical control, which facilitates the water to enter the water tank. The other end of the water inlet valve generates negative pressure through a negative pressure pump, which is controlled by the mixing control box to drain the water from the water tank.
[0012] In a preferred embodiment, a temperature detector is fixedly connected to the inner surface of the water tank, and an electric heating element is fixedly connected to the inner surface of the water tank.
[0013] By adopting the above technical solution, the temperature detector detects the temperature inside the water tank, and the electric heating element heats the water inside the tank, which facilitates the heat preservation and heating treatment of the water inside the tank.
[0014] In a preferred embodiment, a photovoltaic panel is disposed on the outer surface of the electrical rectifier, and an inverter is fixedly connected to the outer surface of the photovoltaic panel.
[0015] By adopting the above technical solution, photovoltaic panels can easily convert solar energy into electrical energy externally, thereby providing power to the system. The inverter rectifies the electrical energy generated by the photovoltaic panels and then transmits it to the electrical rectifier.
[0016] In a preferred embodiment, a solar heating tube is fixedly connected to the outer surface of the mixing control box, and a pipeline control valve is provided on the upper outer surface of the solar heating tube. The outer surface of the mixing control box is correspondingly connected to the pipeline control valve.
[0017] By adopting the above technical solution, the opening and closing of the pipeline control valve introduces the discharged water into the corresponding solar heating tube, while the opening and closing of the discharge valve completes the discharge of water from the solar heating tube.
[0018] In a preferred embodiment, a connecting pipe is provided on the outer surface between the pipeline control valves, and a discharge valve is provided on the outer surface of the solar heating tube.
[0019] By adopting the above technical solution, the connecting pipe can easily connect each pipeline control valve through the pipeline. After the water flows in, the pipeline control valve controls the pipeline of the corresponding solar heating tube, and the opening and closing of the outlet valve completes the water outlet in the solar heating tube.
[0020] In a preferred embodiment, an inlet pipe is fixedly connected to the outer surface of the inlet valve, and a mixing body is fixedly connected to the outer surface of the end of the inlet pipe away from the inlet valve.
[0021] By adopting the above technical solution, through the mixing of the mixing body and the control of the electrical control body, the external water is introduced into the water tank through the inlet pipe under the control of the inlet valve.
[0022] In a preferred embodiment, a long connecting water pipe is fixedly connected to the outer surface of the solar heating tube, and the other end of the long connecting water pipe is fixedly connected to the mixing body.
[0023] By adopting the above technical solution, the long connecting water pipe facilitates the solar heating pipe to use solar-heated water to be re-mixed into the water tank for storage through connection with the mixing body.
[0024] In a preferred embodiment, an outlet body is provided on the outer surface of the water tank output end, and a pressure pump is provided on the outer surface of the mixing body.
[0025] By adopting the above technical solution, the main body facilitates the export of water from the water tank, and the booster pump increases the pressure to facilitate the water entering the mixing body to generate pressure, thereby directing the water flow direction towards the water tank.
[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0027] I. The main body of the system consists of a reference platform, mounting wall panels, and load-bearing reinforcing rods forming the main frame. The reference platform is usually located on the south side to facilitate the reception of more solar energy. The length of the mounting wall panels corresponds to the water tank. In scenarios requiring expansion, the corresponding mounting wall panels are extended away from the reference platform to complete the prefabricated installation. The space is divided laterally by partitions to separate the water and electricity operation spaces. In this case, an electrical rectifier is added to the solar equipment for stepped heat exchange to charge the battery. Through the action of the main electrical control unit, the water tank is heated, thus playing a transitional role in the stepped heat exchange. The assembly of the photovoltaic circuit is less difficult than the sealed installation of water pipes in solar energy systems. At the same time, external power can also assist in the heating operation, making the adjustment more flexible.
[0028] Second, the removable solar panel on top facilitates maintenance while maximizing the utilization area of solar energy. The reference platform, mounting wall panels, water guide plates, etc., are prefabricated in the factory and assembled at the construction site to improve construction efficiency. Other equipment is also prefabricated, which is beneficial for reducing installation and replacement costs.
[0029] Third, this method optimizes traditional solar energy equipment by installing pipeline control valves and outlet valves. On the one hand, it enables solar energy to be used for heating at the corresponding locations, and on the other hand, it mixes water of different temperatures inside the water tank to neutralize the corresponding temperatures and stabilize the temperature to complete the flow. Attached Figure Description
[0030] Figure 1 This is a front view of the overall shape of the device of the present invention;
[0031] Figure 2 This is a reverse view of the overall shape of the device in this invention;
[0032] Figure 3 This is a side view of the overall shape of the device in this invention;
[0033] Figure 4 This is a schematic diagram of the circuit connection of the device in this invention;
[0034] Figure 5 This is a top view of the equipment during maintenance in this invention;
[0035] Figure 6 This is a schematic diagram of the water tank's external shape in this invention.
[0036] The diagram shows the following components: 1. Base platform; 2. Assembly wall panel; 3. Solar cover plate; 4. Partition plate; 5. Electrical rectifier; 6. Battery; 7. Electrical control unit; 8. Load-bearing reinforcing rod; 9. Water tank; 10. Water guide plate; 11. Inlet valve; 12. Negative pressure pump; 13. Mixing flow control box; 14. Temperature detector; 15. Electric heating unit; 16. Photovoltaic panel; 17. Inverter; 18. Solar heating tube; 19. Pipeline control valve; 20. Outlet valve; 21. Connecting pipe; 22. Outlet unit; 23. Inlet pipe; 24. Mixing flow unit; 25. Long connecting water pipe; 26. Booster pump. DETAILED DESCRIPTION
[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0038] Example:
[0039] Reference Figure 1-5 A prefabricated multi-tank stepped heat exchange solar water heating system includes a reference platform 1. Mounting wall panels 2 are fixedly connected to the outer surfaces of both sides of the reference platform 1. A solar cover plate 3 is detachably connected to the upper surface of the mounting wall panels 2. An electrical rectifier 5 is fixedly connected to the inner surface of the mounting wall panels 2. A load-bearing reinforcing rod 8 is fixedly connected to the lower surface of the mounting wall panels 2. A partition plate 4 is fixedly connected to the upper surface of the load-bearing reinforcing rod 8. A storage battery 6 is fixedly connected to the upper surface of the mounting wall panels 2 next to the storage battery 6. An electrical control unit 7 is fixedly connected to the upper surface of the mounting wall panels 2.
[0040] The main body of the system consists of a reference platform 1, mounting wall panels 2, and load-bearing reinforcing rods 8 forming the main frame. The reference platform 1 is usually located on the south side to facilitate the reception of more solar energy. The length of the mounting wall panels 2 corresponds to that of the water tank 9. In scenarios where expansion is required, the corresponding mounting wall panels 2 are extended away from the reference platform 1 to complete the prefabricated installation. The space is divided laterally by partitions 4 to separate the water and electricity operation space. In this case, an electrical rectifier 5 is added to the solar energy equipment for stepped heat exchange to charge the battery 6. Through the action of the electrical control unit 7, the inside of the water tank 9 is heated, thus playing a transitional role in the stepped heat exchange.
[0041] Reference Figure 1-6 A water tank 9 is fixedly connected to the upper surface of the load-bearing reinforcing rod 8 on the side away from the battery 6, and a water guide plate 10 is fixedly connected to the upper surface of the mounting wall panel 2 on the side away from the reference platform 1.
[0042] Water tank 9 provides an independent water storage space, and water guide plate 10 provides rain protection on the upper side of the main frame formed by reference platform 1, mounting wall panel 2, and load-bearing reinforcing rod 8.
[0043] Reference Figure 1-6 A negative pressure pump 12 is fixedly connected to the outer surface of the wall panel 2, and an inlet valve 11 is fixedly connected to the outer surface of the input end of the water tank 9. A mixing control box 13 is provided on the outer surface of the water tank 9. The inlet valve 11, the mixing control box 13 and the electrical control body 7 are electrically connected.
[0044] The inlet valve 11 is electrically controlled to open and close, facilitating the entry of water into the water tank 9. The other end of the inlet valve 11 generates negative pressure through the negative pressure pump 12, which is controlled by the mixing control box 13 to drain the water from the water tank 9.
[0045] Reference Figure 1-6 A temperature detector 14 is fixedly connected to the inner surface of the water tank 9, and an electric heating element 15 is fixedly connected to the inner surface of the water tank 9.
[0046] Temperature detector 14 detects the internal temperature of water tank 9, and electric heating body 15 heats the water inside water tank 9, which facilitates the heat preservation and heating treatment of the water inside water tank 9.
[0047] Reference Figure 1-5 A photovoltaic panel 16 is provided on the outer surface of the electrical rectifier 5, and an inverter 17 is fixedly connected to the outer surface of the photovoltaic panel 16.
[0048] The photovoltaic panel 16 facilitates the conversion of solar energy into electrical energy from the outside, thereby providing power to the system. The inverter 17 rectifies the electrical energy generated by the photovoltaic panel 16 and then transmits it to the electrical rectifier 5.
[0049] Reference Figure 1-5 A solar heating tube 18 is fixedly connected to the outer surface of the mixing control box 13. A pipeline control valve 19 is provided on the upper outer surface of the solar heating tube 18. The outer surface of the mixing control box 13 is correspondingly connected to the pipeline control valve 19.
[0050] The opening and closing of the pipeline control valve 19 introduces the discharged water into the corresponding solar heating tube 18, while the opening and closing of the discharge valve 20 completes the discharge of water from the solar heating tube 18.
[0051] Reference Figure 1-5 A connecting pipe 21 is provided on the outer surface between the pipeline control valves 19, and an outlet valve 20 is provided on the outer surface of the solar heating tube 18.
[0052] The connecting pipe 21 facilitates the connection of each pipeline control valve 19 through the pipeline. After the water flows in, the pipeline control valve 19 controls the pipeline of the corresponding solar heating tube 18, while the opening and closing of the outlet valve 20 completes the water outlet from the solar heating tube 18.
[0053] Reference Figure 1-5 An inlet pipe 23 is fixedly connected to the outer surface of the inlet valve 11, and a mixing body 24 is fixedly connected to the outer surface of the end of the inlet pipe 23 away from the inlet valve 11.
[0054] Through the mixing of the mixing body 24 and the control of the electrical control body 7, the external water is introduced into the water tank 9 through the inlet pipe 23 under the control of the inlet valve 11.
[0055] Reference Figure 1-5 A long connecting water pipe 25 is fixedly connected to the outer surface of the solar heating tube 18, and the other end of the long connecting water pipe 25 is fixedly connected to the outer surface of the mixing body 24.
[0056] The long connecting water pipe 25 facilitates the solar heating pipe 18 to use solar energy to heat water, which is then connected to the mixing body 24 and re-mixed into the water tank 9 for storage.
[0057] Reference Figure 1-6 The outer surface of the output end of the water tank 9 is provided with an outlet body 22, and the outer surface of the mixing body 24 is provided with a pressure pump 26.
[0058] The outlet body 22 facilitates the outlet of water from the water tank 9, and the booster pump 26 increases the pressure to facilitate the water entering the mixing body 24 to generate pressure, thereby directing the water flow direction towards the water tank 9.
[0059] The implementation principle of an embodiment of the prefabricated multi-tank stepped heat exchange solar water heating system of the present invention is as follows:
[0060] The main body of the system consists of a reference platform 1, mounting wall panels 2, and load-bearing reinforcing rods 8 forming the main frame. The reference platform 1 is usually located on the south side to facilitate greater solar energy reception. The length of the mounting wall panels 2 corresponds to that of the water tank 9. In scenarios requiring expansion, the corresponding mounting wall panels 2 are extended away from the reference platform 1 to complete the prefabricated installation. The space is divided laterally by partitions 4 to separate the water and electricity operation spaces. Photovoltaic panels 16 facilitate the conversion of solar energy into electrical energy from the outside, thereby providing power to the system. Inverter 17 rectifies the electrical energy generated by photovoltaic panels 16 and then transmits it to electrical rectifier 5. In this case, electrical rectifier 5 is added to the stepped heat exchange solar energy equipment to charge the battery 6. Through the function of the electronic control unit 7, temperature detector 14 detects the internal temperature of the water tank 9, and the electric heating unit... 15 By heating inside the water tank 9, it is convenient to keep the water inside the water tank 9 warm and heat it, thereby playing a transitional role in the stepped heat exchange. The system uses the water tank 9 as a water storage medium space to facilitate the storage of water at different temperatures. The mixing body 24 facilitates the connection of the water pipe into the water tank 9. The booster pump 26 provides pressure and sends it into the water tank 9 under the opening and closing of the inlet valve 11. During this period, the corresponding other end generates negative pressure through the negative pressure pump 12, which is controlled by the mixing control box 13 to export the water in the water tank 9. The pipe control valve 19 opens and closes to introduce the exported water into the corresponding solar heating tube 18, while the opening and closing of the outlet valve 20 completes the export of water from the solar heating tube 18. Through the mixing of the mixing body 24 and the control of the electrical control body 7, the return of the solar-heated water tank 9 is completed.
[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A prefabricated multi-tank stepped heat exchange solar water heating system, comprising a reference platform (1), characterized in that: The reference platform (1) has mounting wall panels (2) fixedly connected to the outer surfaces on both sides. The upper surface of the mounting wall panel (2) is detachably connected to a solar cover plate (3). The inner surface of the mounting wall panel (2) is fixedly connected to an electrical rectifier (5). The lower surface of the mounting wall panel (2) is fixedly connected to a load-bearing reinforcing rod (8). The upper surface of the load-bearing reinforcing rod (8) is fixedly connected to a partition plate (4). The upper surface of the load-bearing reinforcing rod (8) is fixedly connected to a storage battery (6). The upper surface of the mounting wall panel (2) next to the storage battery (6) is fixedly connected to an electronic control body (7).
2. The prefabricated multi-tank stepped heat exchange solar water heating system as described in claim 1, characterized in that: A water tank (9) is fixedly connected to the upper surface of the load-bearing reinforcing rod (8) on the side away from the battery (6), and a water guide plate (10) is fixedly connected to the upper surface of the assembled wall panel (2) on the side away from the reference platform (1).
3. The prefabricated multi-tank stepped heat exchange solar water heating system as described in claim 1, characterized in that: A negative pressure pump (12) is fixedly connected to the outer surface of the assembled wall panel (2), an inlet valve (11) is fixedly connected to the outer surface of the input end of the water tank (9), a mixing control box (13) is provided on the outer surface of the water tank (9), and the inlet valve (11), the mixing control box (13) and the electrical control body (7) are electrically connected.
4. A prefabricated multi-tank stepped heat exchange solar water heating system as described in claim 2, characterized in that: A temperature detector (14) is fixedly connected to the inner surface of the water tank (9), and an electric heating element (15) is fixedly connected to the inner surface of the water tank (9).
5. A prefabricated multi-tank stepped heat exchange solar water heating system as described in claim 1, characterized in that: The outer surface of the electrical rectifier (5) is provided with a photovoltaic panel (16), and an inverter (17) is fixedly connected to the outer surface of the photovoltaic panel (16).
6. A prefabricated multi-tank stepped heat exchange solar water heating system as described in claim 3, characterized in that: A solar heating tube (18) is fixedly connected to the outer surface of the mixing control box (13). A pipeline control valve (19) is provided on the upper outer surface of the solar heating tube (18). The outer surface of the mixing control box (13) is correspondingly connected to the pipeline control valve (19).
7. A prefabricated multi-tank stepped heat exchange solar water heating system as described in claim 6, characterized in that: A connecting pipe (21) is provided on the outer surface between the pipeline control valves (19), and a discharge valve (20) is provided on the outer surface of the solar heating tube (18).
8. A prefabricated multi-tank stepped heat exchange solar water heating system as described in claim 3, characterized in that: An inlet pipe (23) is fixedly connected to the outer surface of the water inlet valve (11), and a mixing body (24) is fixedly connected to the outer surface of the end of the inlet pipe (23) away from the water inlet valve (11).
9. A prefabricated multi-tank stepped heat exchange solar water heating system as described in claim 6, characterized in that: The outer surface of the solar heating tube (18) is fixedly connected to a long connecting water pipe (25), and the outer surface of the other end of the long connecting water pipe (25) is fixedly connected to the mixing body (24).
10. A prefabricated multi-tank stepped heat exchange solar water heating system as described in claim 8, characterized in that: The outer surface of the output end of the water tank (9) is provided with an outlet body (22), and the outer surface of the mixing body (24) is provided with a pressure pump (26).