CN205783884U - A kind of solar water heater - Google Patents

Abstract

The utility model provides a solar water heater in the technical field of solar energy application, which comprises a box body with a space for installing a heat collecting device, a water storage tank inside the box body, a water outlet on the upper part of the water storage tank, and a water outlet on the lower part. There is a water inlet, and both ends of the heat device are connected with heat conduction circulation pipes and extend into the water storage tank. The heat collection device includes a heat conduction shell with openings, and vacuum glass and heat collectors are installed in the shell, and the heat collector and vacuum The periphery of the glass is sealed by sealing solder, and the space formed between the upper side of the heat collector and the lower side of the vacuum glass is a vacuum chamber 1, and a support column 1 is arranged between the heat collector and the vacuum glass in the vacuum chamber 1; the utility model The structure is simple, the heat dissipation loss is small, the heat collection efficiency is high, and the heat preservation performance is good, so it can be applied to the heating work of the solar water heater.

Description

A solar water heater

technical field

The utility model relates to a water heater, in particular to a solar water heater.

Background technique

Solar energy is a green energy in today's society. People can save more energy by using solar energy, and realize the full utilization of solar energy, which is the need of current social development. Among the temperature raising and heat preservation technologies, solar water heaters are favored by people because of their use of solar energy, no pollution, convenient use, and low investment costs for long-term use, and they have been well developed. In the prior art, a solar water heater includes a heat collecting plate, a water storage tank and a box body. The heat collecting plate and the water storage tank are installed inside the box body. The heat collecting plate is connected to a heat conduction circulation pipe. The circulation pipe is installed inside the water storage tank. The upper part of the water storage tank is provided with a water outlet, and the lower part is provided with a water inlet. The outer side of the water storage tank is provided with an insulation layer. The light rate is small, and the sunlight passes through the textured glass and uses the heat collecting plate to collect heat. In the process, there is a lot of heat leakage, that is, the loss of heat dissipation is large, resulting in low heat collection efficiency.

Utility model content

Aiming at the defects in the prior art, the purpose of this utility model is to overcome the deficiencies in the above-mentioned prior art, and provide a solar water heater, which has less heat dissipation loss, high heat collection efficiency, and improves water temperature and heat preservation performance.

The purpose of this utility model is achieved as follows: a solar water heater, comprising a box, the box has a space for installing a heat collector, the inside of the box is provided with a water storage tank, and the upper part of the water storage tank is provided with There is a water outlet, and the lower part is provided with a water inlet. Both ends of the heat collection device are connected with heat conduction circulation pipes and extend into the water storage tank. The heat collection device includes a heat conduction shell with an opening, and the shell is installed with Vacuum glass and heat collector, the heat collector and vacuum glass are sealed by sealing solder, the space formed between the upper side of the heat collector and the lower side of the vacuum glass is a vacuum chamber, and the vacuum chamber is internally A support column 1 is arranged between the heat collector and the vacuum glass.

When the utility model works, the heat collecting device is placed facing the direction of the sun, and the sunlight passes through the vacuum glass to the heat collector, and the absorption film on the heat collector strengthens the absorption of sunlight, and it can directly Heat the heat-absorbing pipe to reduce heat leakage, that is, the heat dissipation loss is small. The heat collector will heat the absorbed solar energy in the form of heat through the heat conduction circulation pipe to heat the water in the water storage tank. Based on the principle that hot water floats and cold water sinks, The cold water is supplied from the water inlet at the lower part of the water storage tank, and the hot water is led out from the water outlet at the upper part of the water storage tank, and the water in the water storage tank is continuously heated or kept warm through the combination of the heat collecting device and the heat conduction circulation pipe; the utility model will The vacuum glass and the heat collector are integrated to reduce heat loss. The space formed between the vacuum glass and the heat collector is a vacuum, which improves the heat collection efficiency and heat preservation performance. The heat energy is transferred to the water storage tank through the heat conduction circulation tube to realize Water heating, this device can be applied to the work of using solar energy to heat water.

In order to further improve the heat collecting performance of the utility model, several heat absorbing pipes are installed on the heat collector.

In order to further improve the detachability of the structure, several grooves are spaced apart on the side of the heat collector, and the heat-absorbing pipes are inserted into the grooves, and the heat-absorbing pipes are integrated.

In order to further improve the heat collection efficiency of the heat collector, an absorption film is sprayed on the upper side of the heat collector.

In order to further reduce heat loss, the vacuum glass includes an upper plate glass and a lower plate glass, a vacuum cavity two is formed between the upper plate glass and the lower plate glass, and a supporting column two is arranged between the upper plate glass and the lower plate glass, and the upper plate glass The periphery of the glass and the lower plate glass is sealed by sealing solder.

In order to further improve the compactness of the structure of the utility model, several grooves are spaced apart on the side of the heat collector, and the heat-absorbing pipes are inserted into the grooves, and the heat-absorbing pipes are integrated.

In order to further improve the compactness of the structure, the upper side of the vacuum glass is flush with the upper side of the casing.

In order to further improve the temperature and heat preservation effect, the depth of the heat absorption pipe inserted in the groove is at least 3/4 of the length of the heat collector.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

Fig. 1 is the overall structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the heat collecting device in the utility model.

Fig. 3 is a structural schematic diagram of the heat collecting device in the present invention after removing the shell.

Fig. 4 is a sectional view taken along line C-C of Fig. 3 .

In the figure: 1 water storage tank, 2 box body, 3 heat conducting circulation pipe, 4 heat collecting device, 401 shell, 402 upper plate glass, 403 supporting column 2, 404 heat absorbing pipe, 405 heat collector, 406 supporting column 1, 407 Vacuum chamber one, 408 lower flat glass, 409 absorbing film, 410 vacuum chamber two, 411 sealing solder, 5 water inlets, 6 water outlets.

detailed description

The utility model is described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present utility model. These all belong to the protection domain of the present utility model.

A solar water heater as shown in Figures 1 to 4 includes a box body 2 with a space for installing a heat collecting device 4 on the box body 2, a water storage tank 1 is provided inside the box body 2, and an outlet is provided on the upper part of the water storage tank 1. The water inlet 6 is provided with a water inlet 5 at the lower part. Both ends of the heat collecting device 4 are connected with a heat conducting circulation pipe 3 and extend into the water storage tank 1. The heat collecting device 4 includes a heat conducting shell 401 with an opening, and the shell 401 is equipped with Vacuum glass and heat collector 405, the upper side of the vacuum glass is flush with the upper side of the shell 401, the vacuum glass includes an upper plate glass 402 and a lower plate glass 408, and between the upper plate glass 402 and the lower plate glass 408 is a vacuum chamber 2 410, There is a support column 2 403 between the upper plate glass 402 and the lower plate glass 408, the upper plate glass 402 and the lower plate glass 408 are sealed by sealing solder 411, and the side of the heat collector 405 is separated by several grooves, which are integrated. The heat absorption pipe 404 is inserted in the groove, and the depth of the heat absorption pipe 404 inserted in the groove is 3/4 of the maximum length of the heat collector 405. The upper side of the heat collector 405 is sprayed with an absorption film 409, and the upper side of the heat collector 405 is The periphery of the lower side of the lower plate glass 408 is sealed by sealing solder 411, and the space formed between the upper side of the heat collector 405 and the lower side of the lower plate glass 408 is a vacuum chamber one 407, and the inner heat collector 405 and the vacuum chamber one 407 are connected with each other. Support column 1 406 is arranged between the vacuum glass.

When the utility model works, the heat collecting device 4 is placed facing the direction of the sun, and the sunlight passes through the vacuum glass to the heat collector 405, and the absorption film 409 on the heat collector 405 strengthens the absorption of sunlight, passes through the absorption The film 409 can directly heat the heat-absorbing pipe 404 to reduce heat leakage, that is, the heat dissipation loss is small, and the heat collector 4 heats the water in the water storage tank 1 through the heat conduction circulation pipe 3 through the solar energy absorbed by the heat collector 4. According to the principle of water floating and cold water sinking, cold water is supplied from the water inlet 5 at the lower part of the water storage tank 1, and hot water is led out from the water outlet 6 at the upper part of the water storage tank 1, through the combined use of the heat collecting device 4 and the heat conduction circulation pipe 3, the water is continuously supplied. Heat or keep warm the water in the water storage tank 1; the utility model integrates the vacuum glass and the heat collector 405 into one body, which can reduce heat dissipation loss, and the space formed between the vacuum glass and the heat collector 405 is vacuum, and the heat is collected The upper side of the device 405 is sprayed with an absorption film 409 to improve heat collection efficiency and heat preservation performance. The heat energy is transferred to the water storage tank 1 through the heat conduction circulation pipe 3 to realize water heating. This device can be applied to the work of using solar energy to heat water.

The specific embodiments of the present utility model have been described above. It should be understood that the utility model is not limited to the above-mentioned specific embodiments, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the utility model. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims (7)

1. A solar water heater, comprising a casing, the casing has a space for installing a heat collecting device, the inside of the casing is provided with a water storage tank, the top of the storage tank is provided with a water outlet, and the bottom is provided with an inlet The water outlet is characterized in that: both ends of the heat collecting device are connected with heat conduction circulation pipes and extend into the water storage tank, the heat collecting device includes a heat conducting shell with openings, and vacuum glass and collectors are installed in the shell The heat collector, the periphery of the heat collector and the vacuum glass is closed by sealing solder, the space formed between the upper side of the heat collector and the lower side of the vacuum glass is a vacuum chamber, and the vacuum chamber is a built-in heat collector A support column 1 is arranged between the vacuum glass and the vacuum glass. 2. A solar water heater according to claim 1, characterized in that several heat-absorbing pipes are installed on the heat collector. 3. A solar water heater according to claim 2, characterized in that: the side of the heat collector is spaced with several grooves, the heat-absorbing pipes are inserted into the grooves, and the heat-absorbing pipes are integrated. 4. A solar water heater according to claim 2, characterized in that an absorbing film is sprayed on the upper side of the heat collector. 5. A kind of solar water heater according to claim 4, it is characterized in that: said vacuum glass comprises upper plate glass and lower plate glass, between the upper plate glass and the lower plate glass is a vacuum chamber two, the upper plate glass and the lower plate glass Two support columns are arranged between the plate glasses, and the periphery of the upper plate glass and the lower plate glass are sealed by sealing solder. 6. A solar water heater according to claim 5, characterized in that: the upper side of the vacuum glass is flush with the upper side of the casing. 7. A solar water heater according to any one of claims 2-6, characterized in that the depth of the heat-absorbing pipe inserted into the groove is at least 3/4 of the length of the heat collector.