Air type PCM solar hot water supply device for isolated network operation

Abstract

The utility model relates to the technical field of water heaters, and discloses an air type PCM solar hot water supply device operating in an isolated network, which comprises an air circulation system and a water circulation system, the air circulation system comprises a PCM vacuum tube solar thermal collector, an air energy heat pump assembly, a hot air pipeline and a cold air pipeline; the PCM vacuum tube solar heat collector is connected to the air energy heat pump assembly through the hot air pipeline, and the air energy heat pump assembly is connected to the PCM vacuum tube solar heat collector through the cold air pipeline. According to the air type PCM solar hot water supply device running in the isolated network, the sliding block can slide through the sliding groove and the second positioning groove, when heat storage rods with different heights are mounted, the positioning bolt penetrates through the sliding block and the mounting column to play a role in limiting the tops of the heat storage rods, and the heat storage rods with different heights are conveniently mounted; and the heat storage rod is placed behind the solar panel and is matched with the upper mounting plate to form a closed cavity, so that air can flow.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, specifically to an air-cooled PCM solar water heating supply device operating in an isolated grid. Background Technology

[0002] Currently, most hot water bathing products in my country are household types, mainly electric water heaters and gas water heaters. Electric water heaters are mainly divided into two types: storage type and instantaneous type. Storage type electric water heaters use an electric heating element inside the water heater tank to heat water for hand washing; they are generally larger in size and more widely used. Instantaneous type electric water heaters allow water to flow through a high-power heating element, which quickly heats the water to provide hot water for hand washing; their size is generally 1 / 5 to 1 / 10 that of storage type water heaters.

[0003] Gas water heaters are a type of instantaneous water heater, easy to turn on and off, and provide a continuous supply of hot water once connected to the tap. However, unstable tap water pressure can cause variations in water flow and temperature. Because gas water heaters heat water rapidly, there may be a rush of cold water followed by very hot water initially, affecting handwashing comfort. Gas water heaters also produce harmful gases during use, so they must be installed in well-ventilated areas and descaled regularly.

[0004] Most common infectious diseases in today's society, such as SARS, H5N1, and Ebola, are caused by pathogens of bacteria or viruses. Bacteria and viruses enter the human body through natural openings, such as the nose or mouth, or through the skin. It is impossible to avoid all germs, but the spread of bacteria can be effectively prevented by frequent handwashing.

[0005] Most common infectious diseases in today's society, such as SARS, H5N1, and Ebola, are caused by bacterial or viral pathogens. Bacteria and viruses enter the human body through natural openings, such as the nose or mouth, or through the skin. It is impossible to avoid all germs, but frequent handwashing can effectively prevent the spread of bacteria. Currently, common hot water handwashing devices have the following problems:

[0006] 1) Lack of public handwashing stations. The international consensus on public health and safety is prevention-oriented, and handwashing is recognized as the simplest and most effective way to prevent the spread of disease. However, currently, hot water handwashing facilities in my country are all household-type, meaning that the convenience of hot water handwashing can only be enjoyed at home. Investment in the construction of public handwashing stations is almost nonexistent in various regions, failing to meet the public's needs for public safety and hygiene, and failing to meet the public's need for handwashing.

[0007] 2) Traditional hot water handwashing stations cause serious pollution. my country's current economic development relies heavily on fossil fuels such as coal, which has already contributed to smog and air pollution in some areas. Whether using electric or gas-fired hot water handwashing stations, both utilize traditional energy sources. Therefore, it is not advisable to build handwashing stations using traditional energy sources to encourage handwashing. Large-scale use of such stations would further exacerbate atmospheric pollution.

[0008] 3) Relying on traditional energy sources, it cannot operate in isolation. Traditional hot water handwashing devices rely on traditional energy sources and must be connected to the power grid or gas grid at the place of use to provide energy. Hot water handwashing devices cannot operate in isolation, and their use is severely limited.

[0009] 4) It is not convenient for the quick disassembly and assembly of the heat storage rods inside the PCM vacuum tube solar collector, which makes subsequent maintenance and replacement difficult. It is also not convenient for installing heat storage rods of different heights, and the position of the heat storage rods has not been improved, which hinders airflow. Summary of the Invention

[0010] The technical problem to be solved by this utility model is to provide an air-cooled PCM solar water heating supply device for isolated grid operation, which can effectively solve the problems in the existing technology.

[0011] The technical solution adopted in this utility model is: an air-cooled PCM solar water heating supply device operating in an isolated grid, comprising an air circulation system and a water circulation system;

[0012] The air circulation system includes a PCM vacuum tube solar collector, an air source heat pump assembly, a hot air pipeline, and a cold air pipeline; the PCM vacuum tube solar collector is connected to the air source heat pump assembly through the hot air pipeline, and the air source heat pump assembly is connected to the PCM vacuum tube solar collector through the cold air pipeline.

[0013] The water circulation system includes an air source heat pump assembly, a constant temperature hot water pipeline, a water intake valve, a wastewater recovery pipeline, a heat recovery device, and a waste heat recovery pipeline. The air source heat pump assembly is connected to the water intake valve through the constant temperature hot water pipeline. The water intake valve is configured to correspond to the wastewater recovery pipeline so that the constant temperature hot water flowing out of the water intake valve can be recovered by the wastewater recovery pipeline. The wastewater recovery pipeline is connected to the heat recovery device, and the heat recovery device is connected to the air source heat pump assembly through the waste heat recovery pipeline.

[0014] The PCM vacuum tube solar collector includes a mounting frame, a tripod, a positioning groove 1, a base plate, a mounting seat, a limiting ring 1, a limiting ring 2, a heat storage rod, a mounting column, a mounting plate, and a solar panel. A tripod for support is fixedly installed on the back of the mounting frame. The mounting frame and the tripod have a positioning groove 1 for mounting the base plate at their bottoms. A mounting seat is fixedly installed on the top of the base plate by bolts. A limiting ring 1 (106) and a limiting ring 2 are fixedly installed on the top of the mounting seat. A heat storage rod is arranged between the limiting ring 1 and the limiting ring 2. A mounting column is fixedly installed on the top of the heat storage rod.

[0015] Specifically, the air circulation system also includes a circulating fan; the circulating fan is located on the cold air duct.

[0016] Specifically, the water circulation system also includes a valve connected between the waste heat recovery pipeline and the constant temperature hot water pipeline.

[0017] Specifically, the valve is equipped with a temperature sensor, and the valve is opened when the temperature sensor detects that the water temperature in the waste heat recovery pipeline and the constant temperature hot water pipeline is the same.

[0018] Specifically, the air source heat pump assembly is equipped with an auxiliary electric heater.

[0019] Specifically, the heat recovery equipment is provided with a sewage inlet, a sewage outlet, a cold water source inlet, and a heat recovery outlet; the sewage recovery pipeline is connected to the sewage outlet through the sewage inlet, and the water supply pipeline is connected to the heat recovery outlet through the cold water source inlet; the heat recovery outlet is connected to the waste heat recovery pipeline; the sewage in the sewage recovery pipeline flows in the opposite direction to the cold water in the water supply pipeline, and the sewage in the sewage recovery pipeline exchanges heat with the cold water in the water supply pipeline.

[0020] Specifically, the PCM vacuum tube solar collector also includes a sliding groove, a second positioning groove, a sliding block, and a positioning bolt. The back of the mounting frame is provided with a sliding groove and multiple equally spaced second positioning grooves. A sliding block is slidably installed inside the sliding groove, and a positioning bolt is provided on the outside of the sliding block. The positioning bolt passes through the mounting column and the sliding block.

[0021] Specifically, it also includes a solar photovoltaic storage system; the solar photovoltaic storage system is electrically connected to the wind circulation system, and the solar photovoltaic storage system includes solar photovoltaic panels and energy storage battery clusters arranged in parallel with the PCM vacuum tube solar collector.

[0022] Compared with the prior art, this utility model provides an air-cooled PCM solar water heating supply device operating in an isolated grid, which has the following beneficial effects:

[0023] 1. The air-type PCM solar water heating supply device operating in isolation uses a sliding block to slide through a sliding groove and a positioning groove. When installing heat storage rods of different heights, the positioning bolts can pass through the sliding block and the mounting column to limit the top of the heat storage rods, making it easy to install heat storage rods of different heights. Furthermore, the heat storage rods are placed behind the solar panels, and an additional mounting plate is added to form a sealed cavity, allowing air to circulate.

[0024] 2. This isolated grid-operated air-type PCM solar water heating supply device uses PCM vacuum tube solar collectors, which are air-type PCM solar collectors that integrate heat collection and storage. It uses a fan to transport heat to the room or through a steam-water heat exchanger for heating and water supply. It can use air thermal energy and solar energy to heat water. It can operate in an isolated grid without relying on traditional power grids and gas grids, saving electricity, reducing maintenance costs, and having high operating efficiency. It can be widely installed in public places such as schools, sports venues, and around large public facilities to provide hot water for handwashing or showering, effectively eliminating people's concerns about using cold water for handwashing or showering when the temperature is low. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the air-type PCM solar water heating supply device for isolated grid operation according to this utility model.

[0026] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the PCM vacuum tube solar collector of this utility model. Figure 1 ;

[0028] Figure 4 This is a schematic diagram of the disassembled structure of the PCM vacuum tube solar collector of this utility model;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the PCM vacuum tube solar collector of this utility model. Figure 2 .

[0030] The components include: 1. PCM vacuum tube solar collector; 101. Mounting bracket; 102. Tripod; 103. Positioning slot one; 104. Base plate; 105. Mounting seat; 106. Limiting ring one; 107. Limiting ring two; 108. Heat storage rod; 109. Mounting column; 110. Sliding groove; 111. Positioning slot two; 112. Sliding block; 113. Positioning bolt; 114. Mounting plate; 115. Solar panel; 2. Air source heat pump assembly; 3. Hot air pipeline; 4. Cold air pipeline; 5. Constant temperature hot water pipeline; 6. Water intake valve; 7. Sewage recovery pipeline; 8. Heat recovery equipment; 9. Waste heat recovery pipeline; 10. Circulating fan; 11. Valve; 12. Solar energy storage system. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1: As Figure 1-5 As shown, this utility model provides an air-cooled PCM solar water heating supply device operating in an isolated grid, comprising an air circulation system and a water circulation system;

[0033] The air circulation system includes a PCM vacuum tube solar collector 1, an air source heat pump assembly 2, a hot air pipeline 3, and a cold air pipeline 4. The PCM vacuum tube solar collector 1 is connected to the air source heat pump assembly 2 through the hot air pipeline 3, and the air source heat pump assembly 2 is connected to the PCM vacuum tube solar collector 1 through the cold air pipeline 4. PCM is short for phase change heat storage. The PCM vacuum tube solar collector 1 is an air-type PCM solar collector that integrates heat collection and heat storage. It uses a fan to deliver heat to the room or to use it for heating and water supply through a steam-water heat exchanger.

[0034] The water circulation system includes an air source heat pump assembly 2, a constant temperature hot water pipeline 5, a water intake valve 6, a sewage recovery pipeline 7, a heat recovery device 8, and a waste heat recovery pipeline 9. The air source heat pump assembly 2 is connected to the water intake valve 6 through the constant temperature hot water pipeline 5. The water intake valve 6 is set to correspond to the sewage recovery pipeline 7 so that the constant temperature hot water flowing out of the water intake valve 6 is recovered by the sewage recovery pipeline 7. The sewage recovery pipeline 7 is connected to the heat recovery device 8, and the heat recovery device 8 is connected to the air source heat pump assembly 2 through the waste heat recovery pipeline 9.

[0035] Specifically, the air circulation system also includes a circulating fan 10; the circulating fan 10 is installed on the cold air duct 4;

[0036] Specifically, the water circulation system also includes valve 11, which is connected between waste heat recovery pipeline 9 and constant temperature hot water pipeline 5;

[0037] Specifically, valve 11 is equipped with a temperature sensor. When the temperature sensor detects that the water temperature in the waste heat recovery pipeline 9 and the constant temperature hot water pipeline 5 is the same, valve 11 is opened.

[0038] Specifically, the air source heat pump component 2 is equipped with an auxiliary electric heater;

[0039] Specifically, the heat recovery equipment 8 is equipped with a sewage inlet, a sewage outlet, a cold water source inlet, and a heat recovery outlet; the sewage recovery pipeline 7 is connected to the sewage outlet through the sewage inlet, and the water supply pipeline is connected to the heat recovery outlet through the cold water source inlet, and the heat recovery outlet is connected to the waste heat recovery pipeline 9; the sewage in the sewage recovery pipeline 7 flows in the opposite direction to the cold water in the water supply pipeline, and the sewage in the sewage recovery pipeline 7 exchanges heat with the cold water in the water supply pipeline;

[0040] Specifically, it also includes a solar photovoltaic and energy storage system 12. The solar photovoltaic and energy storage system 12 is electrically connected to the wind circulation system. The solar photovoltaic and energy storage system 12 includes solar photovoltaic panels and energy storage battery clusters arranged parallel to the PCM vacuum tube solar collector 1. It uses solar power to power the circulating fan 10, auxiliary heating of the air source heat pump components, and control signal power supply, enabling the hot water handwashing station to operate in isolated mode without relying on the power grid or gas grid. When solar photovoltaic power is abundant, it is stored in the battery clusters, providing continuous power during cloudy or rainy weather or peak electricity consumption periods, ensuring the stable and continuous operation of the hot water handwashing station.

[0041] The air-cooled PCM solar water heating supply device with isolated grid operation provided in this application embodiment can heat water using air thermal energy and solar energy. It can operate in isolation without relying on traditional power grids and gas grids, saving electricity, reducing maintenance costs, and achieving high operating efficiency. It can be widely installed in public places such as schools, sports venues, and around large public facilities to provide hot water for handwashing or showering, effectively eliminating people's concerns about not wanting to use cold water for handwashing or showering when the temperature is low.

[0042] Example 2: Figure 2-5 As shown, this is an improvement on the previous embodiment.

[0043] Specifically, the PCM vacuum tube solar collector 1 includes a mounting frame 101, a tripod 102, a positioning groove 103, a base plate 104, a mounting seat 105, a limiting ring 106, a limiting ring 107, a heat storage rod 108, a mounting column 109, a mounting plate 114, and a solar panel 115. The back of the mounting frame 101 is fixedly mounted with a tripod 102 for support. The bottom of the mounting frame 101 and the tripod 102 are provided with a positioning groove 103 for mounting the base plate 104. The top of the base plate 104 is fixedly mounted with a mounting seat 105 by bolts. The top of the mounting seat 105 is fixedly mounted with a limiting ring 106 and a limiting ring 107. A heat storage rod 108 is arranged between the limiting ring 106 and the limiting ring 107. The top of the heat storage rod 108 is fixedly mounted with a mounting column 109.

[0044] Specifically, the PCM vacuum tube solar collector 1 also includes a sliding groove 110, a second positioning groove 111, a sliding block 112, and a positioning bolt 113. The mounting bracket 101 has a sliding groove 110 and multiple equally spaced second positioning grooves 111 on its back. The sliding block 112 is slidably installed inside the sliding groove 110, and the positioning bolt 113 is provided on the outside of the sliding block 112. The positioning bolt 113 passes through the mounting column 109 and the sliding block 112.

[0045] The PCM vacuum tube solar collector 1 provided in this application embodiment can slide the sliding block 112 through the sliding groove 110 and the positioning groove 111. When installing heat storage rods 108 of different heights, the positioning bolt 113 can pass through the sliding block 112 and the mounting column 109 to limit the top of the heat storage rod 108, which is convenient for installing heat storage rods 108 of different heights. The advantage is that the heat storage rod 108 is placed behind the solar panel 115, and a mounting plate 114 is added to form a sealed cavity, which allows air to flow.

[0046] Working principle: During use, the sliding block 112 can slide through the sliding groove 110 and the positioning groove 111. When installing heat storage rods 108 of different heights, the positioning bolt 113 can pass through the sliding block 112 and the mounting column 109 to limit the top of the heat storage rod 108, facilitating the installation of heat storage rods 108 of different heights. The heat storage rod 108 is placed behind the solar panel 115, and an additional mounting plate 114 forms a sealed cavity, allowing air to circulate. (PCM vacuum tube solar collector 1) This is an air-type PCM solar collector that integrates heat collection and storage. It uses a fan to deliver heat indoors or through a steam-water heat exchanger for heating and water supply. It can heat water using air thermal energy and solar energy, and can operate in isolation without relying on traditional power grids and gas grids. This saves electricity, reduces maintenance costs, and has high operating efficiency. It can be widely installed in public places such as schools, sports venues, and around large public facilities to provide hot water for handwashing or showering, effectively eliminating people's concerns about using cold water for handwashing or showering when the temperature is low.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air-cooled PCM solar water heating supply device operating in an isolated grid, characterized in that, Including air circulation system and water circulation system; The air circulation system includes a PCM vacuum tube solar collector (1), an air source heat pump assembly (2), a hot air pipeline (3), and a cold air pipeline (4); the PCM vacuum tube solar collector (1) is connected to the air source heat pump assembly (2) through the hot air pipeline (3), and the air source heat pump assembly (2) is connected to the PCM vacuum tube solar collector (1) through the cold air pipeline (4). The water circulation system includes an air source heat pump assembly (2), a constant temperature hot water pipeline (5), a water intake valve (6), a sewage recovery pipeline (7), a heat recovery device (8), and a waste heat recovery pipeline (9). The air source heat pump assembly (2) is connected to the water intake valve (6) through the constant temperature hot water pipeline (5). The water intake valve (6) is configured to correspond to the sewage recovery pipeline (7) so that the constant temperature hot water flowing out of the water intake valve (6) is recovered by the sewage recovery pipeline (7). The sewage recovery pipeline (7) is connected to the heat recovery device (8). The heat recovery device (8) is connected to the air source heat pump assembly (2) through the waste heat recovery pipeline (9). The PCM vacuum tube solar collector (1) includes a mounting bracket (101), a tripod (102), a positioning groove (103), a base plate (104), a mounting seat (105), a limiting ring (106), a limiting ring (107), a heat storage rod (108), a mounting column (109), a mounting plate (114), and a solar panel (115). The mounting bracket (101) is fixedly mounted on the back of the tripod (102) for support. The bottom of the tripod (102) and the base plate (104) are provided with a positioning groove (103) for mounting the base plate (104). The top of the base plate (104) is fixedly mounted with a mounting base (105) by bolts. The top of the mounting base (105) is fixedly mounted with a limiting ring (106) and a limiting ring (107). A heat storage rod (108) is provided between the limiting ring (106) and the limiting ring (107). The top of the heat storage rod (108) is fixedly mounted with a mounting column (109).

2. The air-cooled PCM solar water heating supply device operating in isolated grid mode as described in claim 1, characterized in that, The air circulation system also includes a circulating fan (10); the circulating fan (10) is located on the cold air duct (4).

3. The air-cooled PCM solar water heating supply device operating in isolated grid mode as described in claim 1, characterized in that, The water circulation system also includes a valve (11), which is connected between the waste heat recovery pipeline (9) and the constant temperature hot water pipeline (5).

4. The air-cooled PCM solar water heating supply device operating in isolated grid as described in claim 2, characterized in that, A temperature sensor is provided on the valve (11). When the temperature sensor detects that the water temperature in the waste heat recovery pipeline (9) and the constant temperature hot water pipeline (5) is the same, the valve (11) is opened.

5. The air-cooled PCM solar water heating supply device operating in isolated grid as described in claim 1, characterized in that, The air source heat pump assembly (2) is equipped with an auxiliary electric heater.

6. The air-cooled PCM solar water heating supply device operating in isolated grid as described in claim 1, characterized in that, The heat recovery equipment (8) is provided with a sewage inlet, a sewage outlet, a cold water source inlet, and a heat recovery outlet; the sewage recovery pipeline (7) is connected to the sewage outlet through the sewage inlet, and the water supply pipeline is connected to the heat recovery outlet through the cold water source inlet, and the heat recovery outlet is connected to the waste heat recovery pipeline (9); the sewage in the sewage recovery pipeline (7) flows in the opposite direction to the cold water in the water supply pipeline, and the sewage in the sewage recovery pipeline (7) exchanges heat with the cold water in the water supply pipeline.

7. The air-cooled PCM solar water heating supply device operating in isolated grid as described in claim 1, characterized in that, The PCM vacuum tube solar collector (1) also includes a sliding groove (110), a second positioning groove (111), a sliding block (112), and a positioning bolt (113). The mounting bracket (101) has a sliding groove (110) and multiple equally spaced second positioning grooves (111) on its back. The sliding block (112) is slidably installed inside the sliding groove (110), and a positioning bolt (113) is provided on the outside of the sliding block (112). The positioning bolt (113) passes through the mounting column (109) and the sliding block (112).

8. The air-cooled PCM solar water heating supply device operating in isolated grid as described in claim 1, characterized in that, It also includes a solar photovoltaic storage system (12); the solar photovoltaic storage system (12) is electrically connected to the wind circulation system, and the solar photovoltaic storage system (12) includes solar photovoltaic panels and energy storage battery clusters arranged in parallel with the PCM vacuum tube solar collector (1).

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