CN205444542U - Solar energy phase transition and apparent heat recombination formula heat storage wall and heating system thereof - Google Patents

Abstract

The utility model provides a building component capable of storing heat, in particular to a solar phase change and sensible heat composite heat storage wall and a heat supply system thereof. The heat storage wall includes: the outer frame of the wall frame, the inner frame of the wall frame, the middle beam connecting the outer frame and the inner frame of the wall frame, the thermal insulation material layer, the phase change heat storage layer, and the snake-shaped heat exchanger arranged in the vertical direction. Heat coils, serpentine heat exchange coils arranged in the horizontal direction. The heating system includes five subsystems: (1) solar heat collection system; (2) thermal storage wall system; (3) circulating pump energy supply system; (4) indoor heating system; (5) hot water system. The invention has the advantages of high solar energy utilization efficiency, high energy storage density, high degree of integration of solar energy utilization and buildings, wide application range of the system, and easy maintenance. It has positive significance in reducing building energy consumption, improving indoor comfort, and alleviating electricity pressure.

Description

A solar phase change and sensible heat composite thermal storage wall and its heating system

technical field

The utility model provides a building component capable of storing heat, in particular to a solar phase change and sensible heat composite heat storage wall and a heat supply system thereof. It belongs to the application field of renewable energy in building energy saving.

Background technique

With the development of the economy, the expansion of the city scale, and the improvement of people's living standards, people's requirements for the comfort of living and working environments are also increasing. At the same time, the proportion of HVAC energy consumption in the total energy consumption of national production Gradually increase. According to statistics, at present, my country's building energy consumption accounts for about 30-40% of the total energy consumption, of which the energy consumption for HVAC accounts for 40% of the total building energy consumption, especially in the heating areas in northern my country, where heating energy consumption accounts for 40% of the total energy consumption. More than 65% of the total building energy consumption. Therefore, the issue of building energy conservation, especially the reduction of HVAC energy consumption, has attracted more and more attention from the society.

Nowadays, fossil energy is increasingly depleted, and the environmental pollution caused by the massive development and utilization of fossil energy is also becoming more and more serious. It has become the goal of governments and peoples of all countries to seek the coordination of economic development, energy and the environment, and to achieve sustainable development strategies. consensus. As an environmentally friendly renewable energy source, solar energy is an important alternative energy source for fossil energy sources. It is an important way to follow the sustainable development to promote the application of solar energy technology in buildings and reduce the application proportion of fossil energy in building energy consumption.

In the application technology of solar energy in buildings, the role of heat storage in reducing energy consumption, improving indoor comfort, and alleviating electricity pressure has been widely recognized. However, solar radiation changes with time, how to adopt efficient heat storage technology and overcome the change of solar radiation with time has become the key link to improve the utilization efficiency of solar energy in the field of building heat storage.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a high-efficiency building component capable of storing energy, which is used for solar heat storage and heating systems. This component can convert solar radiation energy into thermal energy and store it in the building wall, and solve the problem of indoor heating in winter and hot water in summer through the heating and hot water circulation system. Space and conventional energy consumption.

One of the problems to be solved by the technology of the utility model is to provide a high-efficiency solar energy phase change and sensible heat composite heat storage wall.

The second technical problem of the utility model is: to provide a heating system using high-efficiency solar energy phase transition and sensible heat compound heat storage wall.

The third problem to be solved by the technology of the utility model is: to provide a hot water supply system using high-efficiency solar energy phase transition and sensible heat composite thermal storage wall.

One of the technical solutions of the utility model, the high-efficiency solar phase change and sensible heat composite thermal storage wall, includes: the outer frame of the wall skeleton, the inner frame of the wall skeleton, the middle beam connecting the outer frame and the inner frame of the wall skeleton, Insulation material layer, phase change heat storage layer, snake-shaped heat exchange coils arranged in the vertical direction, and snake-shaped heat exchange coils arranged in the horizontal direction; The frame and the middle beam connecting the outer frame and the inner frame form a sandwich space for placing the phase change heat storage layer and the heat exchange coil; the two outer sides of the outer frame of the wall frame and the inner frame of the wall frame are both There is an insulation layer; the two inner surfaces of the outer frame of the wall frame and the inner frame of the wall frame are fused with a phase change heat storage layer; the serpentine heat exchange coils arranged along the horizontal direction and along the vertical direction are located in the wall In the interlayer space; the two ends of the serpentine heat exchange coil arranged in the vertical direction are respectively connected with the heat storage medium inlet and outlet of the solar collector to form a closed cycle, which is used as the heat source cycle of the heat storage component; The serpentine heat exchange coil arranged in the horizontal direction is connected with the heater inside the room to form a closed cycle for indoor heating, which is used as a heat release cycle of the heat storage component.

The solar heat collector adopts a solar vacuum tube heat collector or a flat plate heat collector, and the blocks of the heat collector are vertically installed on the south wall of the building in a parallel or series-parallel combination.

The antifreeze liquid is used for the circulating working fluid in the heat exchange coil pipe connected with the solar heat collector and arranged in the vertical direction.

The second technical solution of the utility model provides a heating system using solar energy phase change and sensible heat compound heat storage wall, including: solar collector, heat storage wall, and serpentine heat exchange arranged in the vertical direction Coil, serpentine heat exchange coil arranged in the horizontal direction, three-way valve 1, three-way valve 2, circulation pump, solar panel, battery, controller, heater; one end of the solar collector is connected to the circulation pump , the other end is connected with a three-way valve 1; the circulation pump is installed on the outside of the wall for convenient maintenance, one end is connected with the solar heat collector, and the other end is connected with the three-way valve 2; one end of the three-way valve 2 is connected with the circulation pump, The other end is connected to one end of the serpentine heat exchange coil arranged in the vertical direction; the other end of the serpentine heat exchange coil arranged in the vertical direction is connected to the three-way valve 1 to form a closed cycle of solar energy collection and heat storage; The serpentine heat exchange coils arranged in the horizontal direction deliver heat to the heater inside the room, and then exchange heat with air with a lower indoor temperature through the heater to increase the indoor temperature.

Both the circulation pump and the controller are powered by solar panels, and the solar panels are installed on the south wall of the building together with the solar heat collector.

The storage battery is connected with the solar panel, the circulation pump and the controller, and stores the power generated by the solar panel for use by the circulation pump and the controller.

The heater is located at the lower part of the indoor wall, and the heater is connected to the auxiliary mains for heating in continuous rainy weather.

The third technical solution of the utility model is to provide a hot water supply system using a high-efficiency solar phase change and sensible heat composite heat storage wall, including: solar collectors, circulation pumps, three-way valve 1, and three-way valve 2. Solar panels, batteries, controllers, hot water storage tanks, and heat exchange coils in the water tanks. One end of the solar heat collector is connected to a circulating pump, and the other end is connected to a three-way valve 1; one end of the three-way valve 1 is connected to one end of the solar heat collector, and the other end is connected to the upper part of the heat exchange coil in the hot water storage tank One end of the three-way valve 2 is connected to the circulation pump, and the other end is connected to the lower part of the heat exchange coil in the hot water storage tank.

The inside of the hot water storage tank is equipped with a heat exchange coil, and the two ends of the inlet and outlet of the heat exchange coil are respectively connected with the two ends of the solar collector, and the heat exchange is performed with the water in the hot water storage tank through the heat exchange coil. Provide domestic hot water.

The upper end of the hot water storage tank is provided with a user water outlet, and the lower end is provided with a cold water supply port.

Compared with the prior art, the beneficial effects produced by the utility model are:

1. The high-efficiency composite heat storage wall is adopted to transfer the solar energy collected by the heat collector to the phase change heat storage layer in the interlayer space. The phase change heat storage material has the advantages of large phase change latent heat and high energy storage density during the phase change process. It can store the collected solar energy to a maximum extent and supply it for heating, which improves the utilization efficiency of solar energy and effectively converts the wall As a heat storage component, and the heat collector adopts wall-mounted installation, which saves building space, and has a high degree of integration between solar energy utilization and buildings.

2. The circulating pump is driven by solar panels. While enhancing the heat transfer effect, it can make full use of solar energy and reduce the use of conventional energy. The consistency of energy consumption is good, which effectively improves the system efficiency.

3. It can meet the needs of heating in winter and hot water in summer at the same time. The antifreeze and coil heat exchange technology in the hot water storage tank solves the problems of antifreeze in winter and hot water production when heating is not needed in northern areas. The system has a wide range of applications and can operate in various weather conditions.

4. Two sets of heat exchange coils are used in the heat storage wall for easy maintenance.

Description of drawings:

Fig. 1 is a schematic diagram of the structure of the thermal storage wall of the present invention

Figure 2 is a schematic diagram of the utility model using the heat storage wall heating system

In the figure: 1. Indoor environment 2. Outdoor environment 3. Inner frame of heat storage wall 4. Outer frame of heat storage wall 5. Insulation layer 6. Phase change heat storage layer 7. Serpentine heat exchange plate arranged in the vertical direction Tube 8. Serpentine heat exchange coil arranged in the horizontal direction 9. Upper wall 10. Lower wall 11. Solar collector 12. Solar panel 13. Battery 14. Three-way valve 115. Three-way valve 216. Circulation pump 17. Heater 18. Hot water storage tank 19. Heat exchange coil 20. Cold water inlet 21. Hot water outlet

detailed description

In the following description, various aspects of the invention will be described. For purposes of explanation, specific configurations and details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without the specific details mentioned herein. Furthermore, well-known features may be omitted or simplified in order not to obscure the invention.

Referring now to Fig. 1, it is a schematic diagram of the structure of the thermal storage wall of the present utility model. As shown in Figure 1, the solar phase change and sensible heat composite heat storage wall structure of the present invention includes: the inner frame (3) of the heat storage wall, the outer frame (4) of the heat storage wall, and the interlayer space of the wall The phase change heat storage layer (6) and the serpentine heat exchange coil (7) arranged in the vertical direction and the serpentine heat exchange coil (8) arranged in the horizontal direction are located in the interlayer space of the wall. Both the inner wall frame (3) and the heat storage wall outer frame (4) have thermal insulation layers (5) on the outer sides.

As shown in Figure 2, it is the heating system of the utility model using solar phase change and sensible heat compound heat storage wall, including: solar heat collector (11), heat storage wall skeleton, vertically arranged Serpentine heat exchange coil (7), serpentine heat exchange coil arranged in the horizontal direction (8), three-way valve 1 (14), three-way valve 2 (15), circulation pump (16), solar panels (11), storage battery (13), controller, heater (17), heat storage tank (18).

Embodiment 1: In winter and other weather conditions that require heating, connect the three-way valve 2 (15) to the circulating pump (16) and one end of the serpentine heat exchange coil (7) arranged in the vertical direction; connect the three-way Valve 1 (14) connects the other end of the serpentine heat exchange coil (7) arranged in the vertical direction and the solar heat collector (11). The circulating working fluid is circulated between the solar heat collector (11) and the thermal storage coil (7) arranged in the vertical direction. When solar radiation is irradiated on the solar collector (11) during the day, the solar panel (12) also converts the light energy of the received solar radiation into electrical energy to directly drive the circulation pump, and stores excess electricity in the battery (13) ) to power the circulation pump (16) and controller even at night when there is no solar radiation. The working medium circulates between the solar heat collector (11) and the vertically arranged serpentine heat exchange coil (7), so that the heat source of the heat storage component circulates. The heat storage coils (7) arranged in the vertical direction transfer heat to the phase change heat storage layer (6) inside the wall at the same time, and the phase change heat storage layer stores the heat. The heat exchange coil (7) arranged in the horizontal direction sends the heat into the room through the heater (17) to start the heating cycle, and exchanges heat with the air with a lower temperature in the room through the heater to increase the indoor temperature , for indoor heating. The temperature control unit on the heater (17) starts working when the temperature is lower than the set temperature, and stops heating when the temperature is higher than the set temperature. When the heating system cannot be used for heating under continuous rainy weather conditions, the auxiliary mains power on the heater is connected for indoor heating.

Embodiment 2: In summer and other weather conditions, the indoor temperature is relatively high, and when heating is not required, connect the three-way valve 2 (15) between the bottom of the water tank (18) and the circulation pump (16), and simultaneously connect the water tank (18) ) three-way valve 1 (14) between the top and the solar collector (11). Make the solar heat collector (11) communicate with the heat exchange coil (19) in the water tank (18), and make the circulating working medium flow between the solar heat collector (11) and the heat exchange coil (19) in the water tank (18) cycle between. At this time, the solar collector provides domestic hot water for the user. There are supply cold water inlet (20) and hot water outlet (21) respectively on the top and the bottom of water tank (18).

The above is only the preferred embodiment of the utility model, and does not make any limitation to the utility model. Although the utility model has been disclosed as above with the preferred embodiment, it is not used to limit the utility model. Anyone who is familiar with this field The skilled person, without departing from the scope of the technical solution of the present utility model, may use the technical content disclosed above to make some changes or modifications to equivalent embodiments with equivalent changes, but all those that do not depart from the technical solution of the utility model Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (10)

1. A solar energy phase change and sensible heat composite heat storage wall and its heating system, characterized in that: the heat storage wall includes an outer frame of the wall skeleton, an inner frame of the wall skeleton, an outer frame connecting the wall skeleton and The middle beam of the inner frame, the insulation material layer, the phase change heat storage layer, the serpentine heat exchange coils arranged in the vertical direction, and the serpentine heat exchange coils arranged in the horizontal direction; frame and the inner frame of the wall frame and the intermediate beam connecting the outer frame and the inner frame to form a sandwich space for placing the phase change heat storage layer and the heat exchange coil; the outer frame of the wall frame and the inner side of the wall frame There are thermal insulation layers on the two outer sides of the frame; the two inner sides of the outer frame of the wall frame and the inner frame of the wall frame are fused with a phase change heat storage layer; The heat coil is located in the interlayer space of the wall; the two ends of the serpentine heat exchange coil arranged in the vertical direction are respectively connected with the heat storage working medium inlet and outlet of the solar collector to form a closed cycle as a heat storage The heat source circulation of the component; the serpentine heat exchange coil arranged in the horizontal direction is connected with the heater inside the room to form a closed cycle for indoor heating, which is used as the heat release cycle of the heat storage component. 2. A solar phase change and sensible heat composite thermal storage wall and its heating system according to claim 1, characterized in that: the solar collector adopts a solar vacuum tube collector or a flat panel collector , The collector blocks are installed vertically on the south wall of the building in a parallel or series-parallel combination. 3. A solar phase change and sensible heat composite heat storage wall and its heating system according to claim 1, characterized in that: the heat exchange plate connected with the solar heat collector and arranged in the vertical direction The circulating working medium in the pipe is antifreeze. 4. A solar phase change and sensible heat composite thermal storage wall and its heating system according to claim 1, characterized in that: the heating system in the heating system includes a solar collector, a thermal storage wall , Serpentine heat exchange coils arranged vertically, serpentine heat exchange coils arranged horizontally, three-way valve 1, three-way valve 2, circulating pump, solar panel, battery, controller, heater; One end of the solar heat collector is connected to a circulation pump, and the other end is connected to a three-way valve 1; the circulation pump is installed on the outside of the wall for convenient maintenance, one end is connected to the solar heat collector, and the other end is connected to the three-way valve 2; One end of the three-way valve 2 is connected to the circulating pump, and the other end is connected to one end of the vertically arranged serpentine heat exchange coil; the other end of the vertically arranged serpentine heat exchange coil is connected to the three-way valve 1 to form Closed cycle of solar energy collection and heat storage; the serpentine heat exchange coils arranged in the horizontal direction deliver heat to the heater inside the room, and then exchange heat with the air at a lower temperature in the room through the heater to improve room temperature. 5. A solar phase change and sensible heat composite thermal storage wall and its heating system according to claim 4, characterized in that: the circulation pump and the controller are powered by solar panels, solar cells The panels are installed on the south wall of the building together with the solar collectors. 6. A solar phase change and sensible heat composite thermal storage wall and its heating system according to claim 4, characterized in that: the storage battery is connected with a solar panel, a circulation pump and a controller, and the The energy generated by the solar panels is stored and used by the circulation pump and controller. 7. A solar phase change and sensible heat composite thermal storage wall and its heating system according to claim 4, characterized in that: the heater is located at the lower part of the indoor wall, and the heater is connected to the auxiliary mains , used for heating in continuous rainy weather. 8. A solar phase change and sensible heat composite thermal storage wall and its heating system according to claim 1, characterized in that: the hot water supply system in the heating system includes a solar collector, a circulating pump , three-way valve 1, three-way valve 2, solar panel, battery, controller, heat storage tank, heat exchange coil in the water tank; one end of the solar heat collector is connected to the circulation pump, and the other end is connected to the three-way valve 1. One end of the three-way valve 1 is connected to one end of the solar collector, and the other end is connected to the upper part of the heat exchange coil in the hot water storage tank; one end of the three-way valve 2 is connected to the circulation pump, and the other end is connected to the heat storage tank. The lower part of the heat exchange coil in the water tank is connected. 9. According to claim 8, a solar energy phase change and sensible heat composite thermal storage wall and its heating system are characterized in that: a heat exchange coil is installed inside the hot water storage tank, and the inlet and outlet of the heat exchange coil The two ends are respectively connected with the two ends of the solar collector, and the heat exchange is performed with the water in the hot water storage tank through the heat exchange coil to provide domestic hot water. 10. A solar phase change and sensible heat composite heat storage wall and its heating system according to claim 8, characterized in that: the upper end of the hot water storage tank is provided with a water outlet for users, and the lower end is provided with a cold water supply port.