Solar heat exchange device

Abstract

The utility model relates to the technical field of solar energy, in particular to a solar heat exchange device. When the solar heat exchange device is used, the heat collecting pipe obtains solar irradiation energy for heating, heat is transmitted to the U-shaped part through the heat exchange liquid, then the U-shaped part transmits the heat to the heat exchange medium, and the heat exchange medium continuously flows in a closed loop formed by the corrugated pipe and the heat exchange pipe under the action of the circulating water pump. The solar water heater has the advantages of being simple in structure and high in heat exchange efficiency, if one heat collecting pipe is damaged, the overall function is not affected, and only one heat collecting pipe needs to be replaced with a new heat collecting pipe. The device can be installed in places irradiated by solar energy, the shapes do not need to be consistent, and closed pressure-bearing circulation can be achieved (so that design and installation under various conditions are facilitated); the corrugated pipe is used as a thermal medium pipeline, so that the heat exchanger has the advantages of large heat exchange area, capability of bearing pressure, low manufacturing cost, easiness in installation and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of solar energy, in particular to a solar energy heat exchange device. Background Art

[0002] With the development of economy, people's quality of life is getting higher and higher, and solar water heaters are gradually entering thousands of households. The main disadvantages of traditional solar water heaters in the existing technology are:

[0003] 1. The collector tubes are prone to scaling, the heat collection effect decays quickly, and frequent maintenance is required;

[0004] 2. The system is open during operation, and its operation safety is very fragile, and there are height difference requirements for system installation;

[0005] 3. The collector tubes are relatively fragile and prone to bursting. If one tube bursts, the entire system will be paralyzed.

[0006] 4. The installation cost is high (the main materials need to be professionally produced) and the professional requirements for installers are high (including high requirements for the flatness and load-bearing capacity of the installation site).

[0007] Therefore, it is necessary to design a new type of solar heat exchange device to solve the above problems. Utility Model Content

[0008] In view of the defects in the prior art, the utility model provides a solar energy heat exchange device.

[0009] The technical solution adopted by the utility model is: a solar heat exchange device, including a mounting base, a hot water tank is mounted on the mounting base, a heat exchange tube is arranged in the hot water tank, and the two ends of the heat exchange tube extend out of the side of the hot water tank; it also includes a bellows, the two ends of the bellows are respectively connected to the two ends of the heat exchange tube through quick connectors to form a closed loop, the closed loop is filled with heat exchange liquid, a heat collection mechanism, a first valve, a circulating water pump and a second valve are sequentially arranged on the bellows, and a heating mechanism is arranged at the lower part of the hot water tank; the heat collection mechanism includes a plurality of U-shaped parts formed by folding the bellows, each U-shaped part is provided with a heat collection tube on the outside, the heat collection tube is filled with heat exchange medium, and a sealing member for sealing the heat exchange medium is arranged at the matching position between the heat collection tube and the U-shaped part.

[0010] In order to better implement the utility model, a check valve is arranged between the first valve and the circulating water pump.

[0011] In order to better implement the utility model, a first filter is arranged between the circulating water pump and the second valve.

[0012] In order to better implement the utility model, a first soft connecting pipe is provided between the check valve and the circulating water pump and between the first filter and the circulating water pump.

[0013] In order to better realize the utility model, the heating mechanism includes a hot water supply pipe arranged at the lower part of the hot water tank, a third valve and a water pump are arranged on the hot water supply pipe, and a second filter is also arranged between the third valve and the water pump.

[0014] In order to better implement the utility model, a second soft connecting pipe is provided between the second filter and the water pump and at the other end of the water pump.

[0015] In order to better realize the utility model, a sewage pipe is arranged at the bottom of the hot water tank and is matched with a corresponding sewage valve.

[0016] The beneficial effects of the utility model are embodied in that the solar heat exchange device of the utility model is installed by the cooperation of the base, the hot water tank, the heat exchange tube, the bellows, the heat exchange liquid, the first valve, the circulating water pump, the second valve, the heating mechanism, the U-shaped part, the heat collecting tube, the heat exchange medium and the sealing member. When in use, the heat collecting tube obtains the energy of solar radiation to generate heat, transfers the heat to the U-shaped part through the heat exchange liquid, and the U-shaped part transfers the heat to the heat exchange medium. The heat exchange medium is continuously flowed in the closed loop formed by the bellows and the heat exchange tube through the circulating water pump, and continuously transfers the heat to the water in the hot water tank through the heat exchange tube. The utility model has the characteristics of simple structure and high heat exchange efficiency. If one of the heat collecting tubes is damaged, the overall function will not be affected, and only a new heat collecting tube needs to be replaced. The utility model can be installed in any place where solar energy is irradiated, the shape does not need to be consistent, and it can be open cycle or closed pressure cycle (to facilitate design and installation under various conditions). It is more in line with the current national energy conservation policy, especially in the use of solar sanitary hot water in medium and large factories, mines, schools, etc., and solar heating in rural areas in the north. Using bellows as heat medium pipelines has the advantages of large heat exchange area, pressure bearing, low cost and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 A schematic diagram of the structure of the solar heat exchange device of the utility model;

[0019] In the attached drawings, 1 is a mounting base, 2 is a hot water tank, 3 is a heat exchange tube, 4 is a bellows, 5 is a U-shaped portion, 6 is a heat collecting tube, 7 is a sealing member, 8 is a first valve, 9 is a check valve, 10 is a first flexible connecting pipe fitting, 11 is a circulating water pump, 12 is a first filter, 13 is a second valve, 14 is a quick connector, 15 is a hot water supply pipe, 16 is a sewage pipe, 17 is a third valve, 18 is a second filter, 19 is a second flexible connecting pipe fitting, and 20 is a water pump. DETAILED DESCRIPTION

[0020] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0021] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field of this utility model.

[0022] Example:

[0023] like Figure 1As shown, the solar heat exchange device of the utility model comprises a mounting base 1, on which a hot water tank 2 is mounted, a heat exchange tube 3 is arranged in the hot water tank 2, and the two ends of the heat exchange tube 3 extend out of the side of the hot water tank 2; it also comprises a bellows 4, the two ends of the bellows 4 are respectively connected to the two ends of the heat exchange tube 3 through quick connectors 14 to form a closed loop, and the closed loop is filled with heat exchange liquid, a heat collection mechanism, a first valve 8, a circulating water pump 11 and a second valve 13 are sequentially arranged on the bellows 4, and a heating mechanism is arranged at the lower part of the hot water tank 2; the heat collection mechanism comprises a plurality of U-shaped portions 5 formed by folding the bellows 4, each U-shaped portion 5 is provided with a heat collection tube 6 on the outside, and the heat collection tube 6 is filled with heat exchange medium, and a seal 7 for sealing the heat exchange medium is arranged at the matching position between the heat collection tube 6 and the U-shaped portion 5. The solar heat exchange device of the utility model is installed by the cooperation of the base 1, the hot water tank 2, the heat exchange tube 3, the bellows 4, the heat exchange liquid, the first valve 8, the circulating water pump 11, the second valve 13, the heating mechanism, the U-shaped part 5, the heat collecting tube 6, the heat exchange medium and the sealing member 7. When in use, the heat collecting tube 6 obtains the solar radiation energy to generate heat, transfers the heat to the U-shaped part 5 through the heat exchange liquid, and the U-shaped part 5 transfers the heat to the heat exchange medium. The heat exchange medium is continuously flowed in the closed loop formed by the bellows 4 and the heat exchange tube 3 through the action of the circulating water pump 11, and continuously passes through the heat exchange The tube 3 transfers heat to the water in the hot water tank 2, and has the characteristics of simple structure and high heat exchange efficiency. If one of the heat collecting tubes 6 is damaged, the overall function will not be affected, and only a new heat collecting tube 6 needs to be replaced; it can be installed anywhere where solar energy is irradiated, and the shape does not need to be consistent, and a closed pressure cycle can be achieved (to facilitate design and installation under various conditions); it is more in line with the current national energy conservation policy, especially in the use of solar sanitary hot water in medium and large factories, mines, schools, etc., and solar heating in rural areas in the north. It can be vigorously promoted and utilized. The bellows 4 is used as a heat medium pipeline, which has the advantages of large heat exchange area, pressure bearing, low cost, easy installation, etc., and is easier to popularize and promote, and is easy to transform on the basis of existing solar water heaters. It should be noted that the bellows 4 is best made of a flexible bellows made of metal. The heat exchange medium can be a heat exchange liquid or air.

[0024] Preferably, a check valve 9 is provided between the first valve 8 and the circulating water pump 11 to ensure that the heat exchange medium always flows in one direction, thereby improving the heat exchange efficiency.

[0025] Preferably, a first filter 12 is provided between the circulating water pump 11 and the second valve 13. The first filter 12 can filter the heat exchange medium to avoid solid residues generated during long-term use that affect the heat exchange effect.

[0026] Preferably, a first flexible connecting pipe 10 is provided between the check valve 9 and the circulating water pump 11 and between the first filter 12 and the circulating water pump 11. This design facilitates the installation of the circulating water pump 11 and allows the shape and position to be changed within a certain range.

[0027] Preferably, the heating mechanism comprises a hot water supply pipe 15 arranged at the lower part of the hot water tank 2, a third valve 17 and a water pump 20 are arranged on the hot water supply pipe 15, and a second filter 18 is arranged between the third valve 17 and the water pump 20. When the third valve 17 is opened and the water pump 20 is started, the hot water in the hot water tank 2 flows to the user pipeline through the hot water supply pipe 15, and the second filter 18 can play a filtering role, filtering the water before it reaches the user pipeline, thereby improving the user's water quality.

[0028] Preferably, a second flexible connecting pipe 19 is provided between the second filter 18 and the water pump 20 and at the other end of the water pump 20. This design facilitates the installation of the water pump 20 and allows the shape and position to be changed within a certain range.

[0029] Preferably, a drain pipe 16 is provided at the bottom of the hot water tank 2 and is matched with a corresponding drain valve. After long-term use, the drain valve can be opened to discharge the sewage in the hot water tank 2.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A solar heat exchange device, characterized in that: The invention comprises a mounting base (1), on which a hot water tank (2) is mounted, a heat exchange tube (3) is arranged in the hot water tank (2), and two ends of the heat exchange tube (3) extend out of the side of the hot water tank (2); and a bellows (4), the two ends of which are respectively connected to the two ends of the heat exchange tube (3) through quick connectors (14) to form a closed loop, in which a heat exchange liquid is filled, and a heat collection mechanism, a first valve (8), a circulating water pump (11) and a second valve (13) are arranged in sequence on the bellows (4), and a heating mechanism is arranged at the lower part of the hot water tank (2); the heat collection mechanism comprises a plurality of U-shaped parts (5) formed by folding the bellows (4), each U-shaped part (5) is provided with a heat collection tube (6) on the outside, and the heat collection tube (6) is filled with a heat exchange medium, and a sealing member (7) for sealing the heat exchange medium is arranged at the matching position between the heat collection tube (6) and the U-shaped part (5).

2. The solar heat exchange device according to claim 1, characterized in that: A check valve (9) is provided between the first valve (8) and the circulating water pump (11).

3. The solar heat exchange device according to claim 2, characterized in that: A first filter (12) is arranged between the circulating water pump (11) and the second valve (13).

4. The solar heat exchange device according to claim 3, characterized in that: A first flexible connecting pipe (10) is provided between the check valve (9) and the circulating water pump (11) and between the first filter (12) and the circulating water pump (11).

5. The solar heat exchange device according to claim 1, characterized in that: The heating mechanism comprises a hot water supply pipe (15) arranged at the lower part of the hot water tank (2), a third valve (17) and a water pump (20) are arranged on the hot water supply pipe (15), and a second filter (18) is also arranged between the third valve (17) and the water pump (20).

6. The solar heat exchange device according to claim 5, characterized in that: A second soft connecting pipe (19) is provided between the second filter (18) and the water pump (20) and at the other end of the water pump (20).

7. The solar heat exchange device according to claim 1, characterized in that: A sewage pipe (16) is arranged at the bottom of the hot water tank (2) and is matched with a corresponding sewage valve.

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