Vacuum tube solar water heater auxiliary heating hot water system

Abstract

The utility model provides a kind of vacuum tube solar water heater auxiliary heating hot water system, comprising: auxiliary assembly, auxiliary assembly is located in indoor, auxiliary assembly one end is connected with vacuum tube solar water heater, vacuum tube solar water heater is installed on roof upper surface one end, vacuum tube solar water heater one side is equipped with backwater, vacuum tube solar water heater lower surface one end is equipped with hot water outlet, hot water outlet is equipped with hot water outlet pipe, hot water outlet pipe is connected with auxiliary assembly in backwater, indoor wall one side is equipped with controller. By temperature difference circulation, solar energy can be maximized, avoid traditional solar energy system in heat idle, accurate energy saving, avoid invalid cycle, dynamic response weather change, reduce manual intervention, solar energy is only used as auxiliary heating equipment, it does not affect the normal operation of main heating equipment, avoid the problem of high rate of complex fault of solar energy maintenance.

Description

Technical Field

[0001] This utility model relates to the field of solar thermal utilization technology, specifically to a hot water system for auxiliary heating of a vacuum tube solar water heater. Background Technology

[0002] Vacuum tube solar water heaters, with their high heat collection efficiency and wide applicability, have been widely used in hot water supply for homes and some small commercial establishments. They convert solar energy into heat energy through vacuum collector tubes, utilizing the principle of hot water rising and cold water sinking to create a micro-circulation in the water, thereby heating the water.

[0003] However, the cost of winter heating for current household heating equipment such as gas-fired wall-hung boilers, electric wall-hung boilers, and air source heat pumps is still relatively high. Traditional solar heating systems are more economical, but they also have problems such as large investment, large footprint, complex maintenance, high failure rate, and the need for maintenance after shutdown, otherwise they will experience high temperatures due to dry exposure, affecting their lifespan, and their utilization rate is low. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a hot water system for auxiliary heating of a vacuum tube solar water heater.

[0005] The specific technical solution is as follows:

[0006] A hot water system for auxiliary heating using a vacuum tube solar water heater includes: an auxiliary component located indoors, one end of which is connected to a vacuum tube solar water heater, the vacuum tube solar water heater being installed on one end of the roof surface, a return water inlet on one side of the vacuum tube solar water heater, a hot water outlet on one end of the lower surface of the vacuum tube solar water heater, a hot water pipe installed inside the hot water outlet, and auxiliary components connected to both the hot water pipe and the return water inlet; and a controller installed on one side of the indoor wall.

[0007] As a preferred embodiment of this utility model, the auxiliary component includes a heat exchanger, the upper half of the side wall of the heat exchanger is provided with a second inlet and a second outlet, a return water pipe is installed on one side of the second outlet, the other end of the return water pipe is connected to one end of the return water outlet, and the other end of the hot water outlet pipe is connected to the inlet of the first circulating water pump.

[0008] As a preferred embodiment of this utility model, the outlet of the first circulating water pump is connected to a first connecting pipe, the other end of the first connecting pipe is installed in the second inlet, and a first temperature sensor is installed at one end of the lower surface of the vacuum tube solar water heater. The first temperature sensor is embedded in the inner tank of the lower surface of the vacuum tube solar water heater and directly contacts the water storage medium.

[0009] As a preferred embodiment of this utility model, the lower half of the side wall of the heat exchanger is provided with a first inlet and a first outlet. An insulated pipe is installed in the first outlet, and a radiator is connected to the other end of the insulated pipe. The controller is connected to the first temperature sensor and the first circulating water pump through an external wire.

[0010] In a preferred embodiment of this utility model, a second connecting pipe is installed inside the first water inlet, a second circulating water pump is installed in the middle section of the second connecting pipe, a second temperature sensor is installed at one end of the outer surface of the second connecting pipe, and the other end of the second connecting pipe is connected to the main heating equipment. The controller is also connected to the second temperature sensor and the second circulating water pump through an external wire. A circulation pipe is connected between the main heating equipment and the radiator.

[0011] As a preferred embodiment of this utility model, the controller is model SunMaster TMC-200, and both the first temperature sensor and the second temperature sensor are waterproof resistive temperature probes.

[0012] This utility model has the following beneficial effects:

[0013] 1. The hot water system for auxiliary heating of vacuum tube solar water heater provided by this utility model, through the design of auxiliary components, hot water outlet pipe and controller, the hot water outlet pipe is connected to the first circulating water pump, which pumps hot water into the second inlet of the heat exchanger. After the hot water releases heat in the heat exchanger, it flows back to the return port of the vacuum tube solar water heater through the second outlet and the return water pipe, completing one cycle. Then, the first temperature sensor on the lower surface of the vacuum tube solar water heater monitors the water temperature in real time, and transmits the data to the controller to control the start and stop of the first circulating water pump, thereby achieving precise temperature control, improving hot water utilization efficiency, reducing unnecessary energy consumption, and maximizing the utilization of the vacuum tube solar water heater.

[0014] 2. The hot water system for auxiliary heating of a vacuum tube solar water heater provided by this utility model, through the design of a second circulating water pump, a second temperature sensor, and a second temperature sensor, ensures that when the main heating equipment is not started, the second temperature sensor on the second connecting pipe detects that the temperature is below the standard. Subsequently, the temperature of the vacuum tube solar water heater detected by the first temperature sensor is higher than that detected by the second temperature sensor. Then, the controller receives the signal and simultaneously starts the first and second circulating water pumps. The hot water in the vacuum tube solar water heater enters the heat exchanger from the hot water outlet pipe and then flows back to the vacuum tube solar water heater through the return pipe, continuously circulating. Subsequently, the water in the main heating equipment and the water between the radiators also circulate through the circulation pipe. The two water flows exchange heat through the heat exchanger. The water with increased heat exchange through continuous circulation enters the radiators for heating. When the temperature of the vacuum tube solar water heater decreases after circulation and the temperature difference between the water and the main heating equipment becomes small, the controller shuts down the first and second circulating water pumps. This solves the problem of high energy consumption caused by the sudden drop in room temperature after gas boilers and other equipment stop operating at night, requiring reheating. It significantly reduces the consumption of traditional energy sources such as gas and electricity. Furthermore, the solar system is physically isolated from the main heating equipment through a heat exchanger, ensuring that the main heating equipment operates normally. The overall structure is low-cost and easy to maintain, reducing the high-load operation time of the main heating equipment, reducing wear and tear, and extending its service life. In actual use, the solar system only serves as an auxiliary heating device and does not affect the normal operation of the main heating equipment. Moreover, the size of the solar system can be reasonably selected according to site and budget conditions, avoiding the problems of complex maintenance and high failure rate of solar systems. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a hot water system for auxiliary heating in a vacuum tube solar water heater provided in an embodiment of this utility model;

[0016] Figure 2 A schematic diagram of the controller structure for a hot water system providing auxiliary heating for a vacuum tube solar water heater, provided in an embodiment of this utility model.

[0017] Figure 3 A schematic diagram of the auxiliary component structure of a hot water system for auxiliary heating in a vacuum tube solar water heater provided in an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the second temperature sensor in the hot water system for auxiliary heating of a vacuum tube solar water heater provided in an embodiment of this utility model.

[0019] Figure 5 A schematic diagram of the circulation pipe structure of the hot water system for auxiliary heating in a vacuum tube solar water heater provided in an embodiment of this utility model.

[0020] In the attached image:

[0021] 1. Vacuum tube solar water heater; 101. Return water inlet; 102. Hot water outlet; 103. Hot water outlet pipe;

[0022] 2. Auxiliary components; 201. Heat exchanger; 202. First temperature sensor; 203. First circulating water pump; 204. First connecting pipe; 205. First water inlet; 206. First water outlet; 207. Second water inlet; 208. Second water outlet; 209. Return water pipe; 210. Second connecting pipe; 211. Second temperature sensor; 212. Insulated pipe; 213. Second circulating water pump; 214. Circulation pipe;

[0023] 3. Main heating equipment;

[0024] 4. Radiators;

[0025] 5. Controller. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1

[0031] The hot water system for auxiliary heating provided by the vacuum tube solar water heater in this embodiment is as follows: Figures 1-5 As shown, the system includes: an auxiliary component 2 located indoors, one end of which is connected to one end of a vacuum tube solar water heater 1. The vacuum tube solar water heater 1 is installed on one end of the roof surface. A return water inlet 101 is located on one side of the vacuum tube solar water heater 1, and a hot water outlet 102 is located on one end of the lower surface of the vacuum tube solar water heater 1. A hot water outlet pipe 103 is installed inside the hot water outlet 102. The auxiliary component 2 is connected to both the hot water outlet pipe 103 and the return water inlet 101. A controller 5 is installed on one side of the indoor wall. The auxiliary component 2 includes a heat exchanger 201. The upper half of the side wall of the heat exchanger 201 has a second inlet 207 and a second outlet 208. A return water pipe 209 is installed on one side of the second outlet 208, and the other end of the return water pipe 209 is connected to one end of the return water inlet 101. The other end of the hot water outlet pipe 103 is connected to the inlet of the first circulating water pump 203.

[0032] Through the design of auxiliary component 2, hot water outlet pipe 103, and controller 5, hot water outlet pipe 103 is connected to the first circulating water pump 203, which pumps hot water into the second inlet 207 of heat exchanger 201. After the hot water releases heat in heat exchanger 201, it flows back to the return inlet 101 of vacuum tube solar water heater 1 through the second outlet 208 and return water pipe 209, completing one cycle. Then, the first temperature sensor 202 on the lower surface of vacuum tube solar water heater 1 monitors the water temperature in real time, and transmits the data to controller 5 to control the start and stop of the first circulating water pump 203. This enables precise temperature control, improves hot water utilization efficiency, reduces unnecessary energy consumption, and maximizes the utilization of vacuum tube solar water heater 1.

[0033] Example 2

[0034] The hot water system for auxiliary heating provided by the vacuum tube solar water heater in this embodiment is as follows: Figures 3-5As shown, the system includes: a first connecting pipe 204 connected to the outlet of a first circulating water pump 203; the other end of the first connecting pipe 204 is installed inside a second inlet 207; a first temperature sensor 202 is installed on one end of the lower surface of the vacuum tube solar water heater 1, embedded in the inner tank of the lower surface of the vacuum tube solar water heater 1, directly contacting the water storage medium; a first inlet 205 and a first outlet 206 are provided on the lower half of the side wall of the heat exchanger 201; an insulated pipe 212 is installed inside the first outlet 206, the other end of the insulated pipe 212 is connected to a radiator 4; and a controller 5 is connected to the first temperature sensor 202 and the first circulating water pump 203 via an external wire. A second connecting pipe 210 is installed inside the first water inlet 205. A second circulating water pump 213 is installed in the middle section of the second connecting pipe 210. A second temperature sensor 211 is installed at one end of the outer surface of the second connecting pipe 210, and the other end of the second connecting pipe 210 is connected to the main heating device 3. The controller 5 is connected to the second temperature sensor 211 and the second circulating water pump 213 via external wires. A circulation pipe 214 connects the main heating device 3 and the radiator 4. The controller 5 is a SunMaster TMC-200, and both the first temperature sensor 202 and the second temperature sensor 211 are waterproof resistance temperature probes.

[0035] Through the design of the second circulating water pump 213, the second temperature sensor 211, and the second temperature sensor 212, when the main heating equipment 3 is not started, the second temperature sensor 211 on the second connecting pipe 210 detects that the temperature is not up to standard. Then, the temperature of the vacuum tube solar water heater 1 detected by the first temperature sensor 202 is higher than that of the second temperature sensor 211. Then, the controller 5 receives the signal and simultaneously starts the first circulating water pump 203 and the second circulating water pump 213. The hot water in the vacuum tube solar water heater 1 enters the heat exchanger 201 from the hot water outlet pipe 103 and then flows back to the vacuum tube solar water heater 1 through the return water pipe 209, continuously circulating. Then, the water in the main heating equipment 3 and the water between the radiators 4 also circulate through the circulation pipe 214. The two water flows exchange through the heat exchanger 201. The water that increases the heat exchange through continuous circulation enters the radiator 4. When the temperature of the vacuum tube solar water heater 1 decreases after circulation and the temperature difference between the water in the main heating equipment 3 becomes small, the controller 5 shuts down the first circulating water pump 203 and the second circulating water pump 213. This solves the problem of high energy consumption caused by the sudden drop in room temperature after the gas wall-hung boiler and other equipment shuts down at night, requiring reheating. It significantly reduces the consumption of traditional energy sources such as gas and electricity. Furthermore, the solar system and the main heating equipment 3 are physically isolated through the heat exchanger 201, ensuring that they do not interfere with each other and guaranteeing the normal operation of the main heating equipment 3. The overall structure is low-cost and easy to maintain, reducing the high-load operation time of the main heating equipment 3, reducing losses and extending its service life. In actual use, the solar system is only used as an auxiliary heating device and does not affect the normal operation of the main heating equipment 3. Moreover, the size of the solar system can be reasonably selected according to the site and budget, avoiding the problems of complex maintenance and high failure rate of solar systems.

[0036] In summary, the hot water system with vacuum tube solar water heater as auxiliary heating provided in this embodiment has the following advantages: It maximizes the utilization of solar energy through temperature difference circulation, avoiding idle heat in traditional solar systems; it provides precise energy saving, avoids ineffective circulation, dynamically responds to weather changes, and reduces human intervention. Solar energy serves only as an auxiliary heating device and does not affect the normal operation of the main heating device 3. Therefore, the size of the solar energy unit can be reasonably selected according to site conditions, avoiding the problems of complex maintenance and high failure rates associated with solar energy systems. Even after shutdown, it can still provide domestic hot water services, thus avoiding the problem of high temperatures from idling. It has a simple structure, is easy to maintain, and has significant energy-saving effects, making it more suitable for widespread promotion.

[0037] In use, when the main heating equipment 3, such as a gas boiler, electric boiler, or air source heat pump, is not started, the second temperature sensor 211 on the second connecting pipe 210 detects a lower temperature. Then, the first temperature sensor 202 detects a higher temperature than the second temperature sensor 211. The controller 5 then receives the temperature difference signal and simultaneously starts the first circulating water pump 203 and the second circulating water pump 213. Hot water from the vacuum tube solar water heater 1 enters the heat exchanger 201 from the hot water outlet pipe 103 and then flows back to the vacuum tube solar water heater 1 via the return water pipe 209, continuously circulating. The water in the main heating equipment 3 and the water between the radiators 4 also circulate through the circulation pipe 214. The two water flows exchange heat through the heat exchanger 201. Through continuous circulation, the heat increases, and the heat-exchanged water enters the radiator 4 for heating. When the temperature of the vacuum tube solar water heater 1 decreases after circulation and the temperature difference between the water in the main heating equipment 3 and the temperature of the vacuum tube solar water heater 1 is small, the controller 5 controls the first circulating water pump 203 and the second circulating water pump 213 to shut down, and the temperature inside the vacuum tube solar water heater 1 is maintained. When the main heating equipment 3 stops, its temperature and the temperature of the vacuum tube solar water heater 1 reach the threshold set by the controller 5, and the controller 5 restarts the circulation. When the main heating equipment 3 is not turned on, it can rely on the vacuum tube solar water heater 1 for heating, which will not affect the normal use of the main heating equipment 3. It can also use solar energy to supplement the heating of the radiator 4 when it stops, thereby significantly reducing the user's winter heating costs.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot water system for auxiliary heating in a vacuum tube solar water heater, characterized in that, include: Auxiliary component (2) is located indoors. One end of the auxiliary component (2) is connected to a vacuum tube solar water heater (1). The vacuum tube solar water heater (1) is installed on one end of the upper surface of the roof. A return water inlet (101) is provided on one side of the vacuum tube solar water heater (1). A hot water outlet (102) is provided on one end of the lower surface of the vacuum tube solar water heater (1). A hot water outlet pipe (103) is installed in the hot water outlet (102). The auxiliary component (2) is connected to both the hot water outlet pipe (103) and the return water inlet (101). A controller (5) is installed on one side of the indoor wall.

2. The hot water system for auxiliary heating of a vacuum tube solar water heater according to claim 1, characterized in that, The auxiliary component (2) includes a heat exchanger (201). The upper half of the side wall of the heat exchanger (201) is provided with a second inlet (207) and a second outlet (208). A return water pipe (209) is installed on one side of the second outlet (208). The other end of the return water pipe (209) is connected to one end of the return water port (101). The other end of the hot water outlet pipe (103) is connected to the inlet of the first circulating water pump (203).

3. The hot water system for auxiliary heating of a vacuum tube solar water heater according to claim 2, characterized in that, The outlet of the first circulating water pump (203) is connected to a first connecting pipe (204), and the other end of the first connecting pipe (204) is installed in the second inlet (207). A first temperature sensor (202) is installed on one end of the lower surface of the vacuum tube solar water heater (1). The first temperature sensor (202) is embedded in the inner tank of the lower surface of the vacuum tube solar water heater (1) and directly contacts the water storage medium.

4. The hot water system for auxiliary heating of a vacuum tube solar water heater according to claim 3, characterized in that, The lower half of the side wall of the heat exchanger (201) is provided with a first inlet (205) and a first outlet (206). An insulated pipe (212) is installed in the first outlet (206). The other end of the insulated pipe (212) is connected to a radiator (4). The controller (5) is connected to the first temperature sensor (202) and the first circulating water pump (203) through an external wire.

5. The hot water system for auxiliary heating of a vacuum tube solar water heater according to claim 4, characterized in that, A second connecting pipe (210) is installed inside the first water inlet (205). A second circulating water pump (213) is installed in the middle section of the second connecting pipe (210). A second temperature sensor (211) is installed at one end of the outer surface of the second connecting pipe (210). The other end of the second connecting pipe (210) is connected to the main heating device (3). The controller (5) is connected to the second temperature sensor (211) and the second circulating water pump (213) through an external wire. A circulating pipe (214) is connected between the main heating device (3) and the radiator (4).

6. The hot water system for auxiliary heating of a vacuum tube solar water heater according to claim 5, characterized in that, The controller (5) is a SunMaster TMC-200, and the first temperature sensor (202) and the second temperature sensor (211) are both waterproof resistance temperature probes.

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