Heat exchange type solar water heater

Abstract

The heat exchange type solar water heater convenient to disassemble and assemble comprises a support, a water tank fixed on the support and a plurality of vacuum pipes, the upper ends of the vacuum pipes are communicated with an inner cavity of the water tank, a plurality of heat exchange straight pipes are arranged in the water tank in a penetrating mode, and each heat exchange straight pipe is sleeved with two guide sleeves. The two guide sleeves are fixedly connected with the two end walls of the water tank respectively and penetrate through the end walls of the water tank, the two ends of the heat exchange straight pipe penetrate through the two guide sleeves respectively and extend out of the water tank, and the heat exchange straight pipe and the guide sleeves are arranged in a sealed mode. The heat exchange straight pipe is guided through the guide sleeve, so that the heat exchange straight pipe movably penetrates from one end of the water tank to the other end of the water tank, then the guide sleeve and the heat exchange straight pipe are sealed, the heat exchange straight pipe can be used for heat exchange, and the heat exchange straight pipe is movably arranged and is convenient to disassemble, assemble, maintain and replace, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of solar water heater technology, specifically to a heat exchange type solar water heater. Background Technology

[0002] A solar water heater mainly consists of a water tank, a support frame, and several vacuum tubes. The water tank is fixed to the top of the support frame, and the upper ends of the vacuum tubes are inserted into the water tank. A support beam is fixed to the bottom of the support frame, and the lower ends of the vacuum tubes are secured to the support beam. The solar energy absorbed by the vacuum tubes heats the water in the tank, and then the water is delivered to the user's shower by gravity. However, with long-term use, a large amount of scale will build up inside the water tank, which will affect the water quality and is detrimental to human health.

[0003] To address this issue, existing solar water heaters incorporate heat exchange coils within the water tank. Cold water is introduced into these coils to exchange heat with the hot water in the tank, eliminating the need to directly use the water from the tank. However, existing heat exchange coils are typically fixed within the water tank, making disassembly and installation difficult and subsequent replacement and maintenance extremely inconvenient.

[0004] And as Figure 1 , 2 As shown, the existing processing technology of vacuum tube 3 usually results in a conical protrusion 31 at the bottom of vacuum tube 3 after processing. After the vacuum tube 3 is installed, the conical protrusion 31 gets stuck in the circular limiting hole 41 of the support beam 4, making it inconvenient to replace the vacuum tube 3. When replacing the damaged vacuum tube, the entire support beam needs to be removed in order to take out the damaged vacuum tube. During the process, the force is concentrated at the point of the conical protrusion and it is easy to be bumped and damaged, making the disassembly and assembly of the vacuum tube quite inconvenient. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a heat exchange solar water heater that solves the problem of the difficulty in replacing the heat exchange tubes and vacuum tubes in existing solar water heaters.

[0006] This utility model is achieved through the following technical solution: a heat exchange solar water heater, including a bracket, a water tank fixed on the bracket, and several vacuum tubes. The upper end of the vacuum tubes is connected to the inner cavity of the water tank. Several heat exchange straight tubes are installed inside the water tank. Each heat exchange straight tube is fitted with two guide sleeves. The two guide sleeves are respectively fixed to the two end walls of the water tank and penetrate the end walls of the water tank. The two ends of the heat exchange straight tubes extend to the outside of the water tank through the two guide sleeves respectively. The heat exchange straight tubes and the guide sleeves are sealed together.

[0007] This solution guides the heat exchange straight tube through a guide sleeve, allowing the heat exchange straight tube to be movably passed from one end of the water tank to the other. After sealing the guide sleeve and the heat exchange straight tube, the heat exchange straight tube can be used for heat exchange. The movable design of the heat exchange straight tube makes it easy to disassemble, install, maintain, and replace, saving time and effort.

[0008] As an optimization, the number of heat exchange straight pipes is three. In this optimized solution, the three heat exchange straight pipes can be connected to different heating devices (such as one to a radiator, one to a bathroom fixture, and one to a domestic water supply pipe), making it more convenient to use.

[0009] As an optimization, the three heat exchange straight pipes are located on the left and right sides of the middle of the water tank and at the bottom of the water tank, respectively. In this optimized scheme, the three heat exchange straight pipes are evenly distributed in the water tank, ensuring uniform heat exchange.

[0010] As an optimization, the heat exchange straight tube is made of stainless steel, copper, or aluminum. This optimized solution uses stainless steel or copper straight tubes, which have higher compressive strength, are more durable, and have higher thermal conductivity.

[0011] As an optimization, the guide sleeve has external threads on its outer wall outside the water tank. This optimized design allows for easy connection to other pipe fittings (such as sealing sleeves, connecting pipes, etc.) and facilitates the series connection of multiple solar water heaters.

[0012] As an optimization, the end of the guide sleeve located outside the water tank is provided with a sealing sleeve that seals with the heat exchange straight pipe. This optimized solution seals the guide sleeve and the heat exchange straight pipe together using the sealing sleeve.

[0013] As an optimization, a support beam is fixed on the bracket to support the lower end of the vacuum tube. The front end of the support beam has a through hole through which the tapered protrusion of the vacuum tube passes, and the through hole communicates with a limiting hole on the top surface of the support beam. This optimization, by creating a through hole in the support beam, allows the tapered protrusion at the lower end of the vacuum tube to move through the through hole and out of the limiting hole during installation, making it easier to remove the vacuum tube without disassembling the support beam and reducing the risk of damage to the vacuum tube from impacts.

[0014] As an optimization, the support beam and the bracket are connected by bolts. This optimized solution facilitates the disassembly and assembly of the support beam, making installation convenient.

[0015] The beneficial effects of this utility model are as follows: the heat exchange straight tube is movably installed in the water tank, which is convenient for disassembly and assembly, and easy for maintenance and replacement; by opening a hole in the support beam, the tapered protrusion at the lower end of the vacuum tube can pass through, making it easier to remove the vacuum tube without disassembling the support beam, reducing the risk of damage to the vacuum tube, saving time and effort, and making it more convenient to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a vacuum tube structure;

[0017] Figure 2 for Figure 1 Enlarged view of part A;

[0018] Figure 3This is a schematic diagram of the structure of this utility model;

[0019] Figure 4 This is the left view of the present invention;

[0020] Figure 5 for Figure 4 Sectional view of part B;

[0021] Figure 6 This is a right view of the present invention;

[0022] Figure 7 This is a schematic diagram of the supporting beam structure;

[0023] Figure 8 for Figure 7 Enlarged view of part C;

[0024] Figure 9 This is a cross-sectional view of the water tank;

[0025] Figure 10 This is a schematic diagram showing the connection of multiple water tanks in series.

[0026] As shown in the figure:

[0027] 1. Water tank, 2. Bracket, 3. Vacuum tube, 31. Conical protrusion, 4. Support beam, 41. Limiting hole, 42. Perforation, 5. Heat exchange straight tube, 6. Guide sleeve, 7. Threaded water inlet, 8. Vent, 9. Overflow port, 10. Pressure relief valve, 11. Sealing sleeve, 12. Connecting pipe. Detailed Implementation

[0028] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0029] like Figures 1-10 As shown, a heat exchange solar water heater includes a bracket 2, a water tank 1 fixed on the bracket 2, and several vacuum tubes 3. The upper end of the vacuum tubes 3 is connected to the inner cavity of the water tank 1, and a support beam 4 is fixed on the bracket 2 to support the lower end of the vacuum tubes 3.

[0030] like Figure 3 , 4 As shown, specifically, the water tank 1 is fixedly connected to the top of the bracket 2. In this embodiment, threaded water inlets 7 are fixedly connected to both end walls of the water tank 1. The threaded water inlets 7 are located at the center of the water tank and communicate with the inner cavity of the water tank for water inlet and outlet. By providing threaded water inlets 7 on both end walls of the water tank 1, it is convenient to connect it in series with the water tanks 1 of other solar water heaters. After series connection, water can be injected into all the connected water tanks through one threaded water inlet 7, making it more convenient to use.

[0031] Overflow ports 9 are also fixedly connected to the two end walls of the water tank 1, facilitating connection in series with other solar water heater water tanks 1. A vent port 8 is fixedly connected to the top of the water tank 1 for installing a vent valve or pressure relief valve 10.

[0032] Specifically, the structure of the supporting beam 4 is as follows: Figure 7 , 8 As shown. The support beam 4 is fixed to the lower part of the bracket 2, and the top surface of the support beam 4 is provided with a circular limiting hole 41 that matches the lower end face of the vacuum tube 3. Figure 5 As shown, in this embodiment, the support beam 4 and the bracket 2 are connected by bolts, which facilitates disassembly and assembly.

[0033] Specifically, the upper end of the vacuum tube 3 is inserted into the inner cavity of the water tank 1 and sealed to the water tank 1 through a silicone sleeve. The lower end of the vacuum tube 3 is placed in the limiting hole 41 to limit and fix the vacuum tube 3.

[0034] In this embodiment, the front end face of the support beam 4 has a through hole 42 for the conical protrusion 31 of the vacuum tube 3 to pass through. The through hole 42 is connected to the limiting hole 41 on the top surface of the support beam 4. The conical protrusion 31 at the lower end of the vacuum tube 3 can pass through the through hole 42 and enter and exit the limiting hole 41, which makes it easier to put in and take out the vacuum tube 3 without disassembling the support beam 4. The vacuum tube 3 is easier to disassemble and replace, and the risk of damage to the lower end of the vacuum tube during disassembly and assembly is reduced.

[0035] The water tank 1 is equipped with several heat exchange straight pipes 5. Each heat exchange straight pipe 5 is fitted with two guide sleeves 6. The two guide sleeves 6 are fixed to the two end walls of the water tank 1 and penetrate the end walls of the water tank 1. The two ends of the heat exchange straight pipe 5 extend to the outside of the water tank 1 through the two guide sleeves 6 respectively. The heat exchange straight pipe 5 and the guide sleeves 6 are sealed together.

[0036] The heat exchange straight tube 5 is guided by the guide sleeve 6, allowing it to movably pass through one end of the water tank 1 and the other end. After sealing the guide sleeve 6 and the heat exchange straight tube 5, the heat exchange straight tube 5 can be used for heat exchange. The two ends of the heat exchange straight tube 5 are used for water inlet and water outlet, respectively. The movable design of the heat exchange straight tube 5 facilitates disassembly, assembly, maintenance, and replacement, saving time and effort.

[0037] like Figure 3 , 4 As shown in Figure 6, the number of heat exchange straight pipes 5 in this embodiment is three. The three heat exchange straight pipes 5 are located on the left and right sides of the middle of the water tank 1 and the bottom of the water tank 1, respectively. Among them, the two heat exchange straight pipes 5 located in the middle of the water tank 1 are symmetrically distributed on the left and right sides of the threaded water inlet 7.

[0038] By setting up three heat exchange straight pipes 5, different heating devices can be connected to them respectively (such as one connected to radiators, one connected to bathroom fixtures, and one connected to domestic water supply), providing hot water to different devices and making it more convenient to use.

[0039] Preferably, the heat exchange straight tube 5 is a stainless steel straight tube, a copper straight tube, or an aluminum straight tube, all of which have good thermal conductivity. Stainless steel straight tubes have higher compressive strength and are more durable, while copper straight tubes have higher thermal conductivity and higher heat exchange efficiency.

[0040] The guide sleeve 6 has external threads on its outer wall outside the water tank 1. The external threads on the guide sleeve 6 facilitate the connection of other pipe fittings (such as the sealing sleeve 11, connecting pipe 12, etc.) and make it convenient to connect to the water tanks of other solar water heaters.

[0041] like Figure 9 As shown, preferably, the guide sleeve 6 is provided with a sealing sleeve 11 at one end outside the water tank 1, which is in sealing cooperation with the heat exchange straight pipe 5. One end of the sealing sleeve 11 is threaded to the guide sleeve 6, and the other end of the sealing sleeve 11 is in sealing contact with the outer wall of the heat exchange straight pipe 5, thereby achieving a seal between the guide sleeve 6 and the heat exchange straight pipe 5.

[0042] When a heat exchange solar water heater is used alone, the two ends of the heat exchange straight pipe 5 are connected to the cold water inlet pipe and the hot water outlet pipe respectively. The solar energy absorbed by the vacuum tube 3 heats the water in the water tank 1. The cold water flowing into the heat exchange straight pipe 5 exchanges heat with the hot water in the water tank 1 and is then discharged for use.

[0043] like Figure 10 As shown, when multiple heat exchange solar water heaters are connected in series, the threaded water inlets 7 and 7 of adjacent water tanks 1 are connected by a connecting pipe 12, the overflow outlets 9 and 9 are connected by a connecting pipe 12, and the guide sleeves 6 and 6 are connected by a connecting pipe 12. A heat exchange straight pipe 5 is inserted through the connected guide sleeve 6 to exchange heat with multiple water tanks 1 in series, thus realizing the series connection of multiple heat exchange solar water heaters.

[0044] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A heat-exchange type solar water heater, comprising a support (2), a water tank (1) fixed on the support (2), and a plurality of vacuum tubes (3), the upper ends of the vacuum tubes (3) being in communication with the inner cavity of the water tank (1), characterized in that: The water tank (1) is equipped with several heat exchange straight pipes (5). Each heat exchange straight pipe (5) is fitted with two guide sleeves (6). The two guide sleeves (6) are fixed to the two end walls of the water tank (1) and penetrate the end walls of the water tank. The two ends of the heat exchange straight pipe (5) extend to the outside of the water tank (1) through the two guide sleeves (6). The heat exchange straight pipe (5) and the guide sleeves (6) are sealed together.

2. The heat pipe solar water heater according to claim 1, wherein: The number of heat exchange straight tubes (5) is three.

3. The heat pipe solar water heater according to claim 2, wherein: The three heat exchange straight tubes (5) are located on the left and right sides of the middle of the water tank (1) and at the bottom of the water tank, respectively.

4. The heat pipe solar water heater according to any one of claims 1 to 3, wherein: The heat exchange straight tube (5) is a stainless steel straight tube, a copper straight tube, or an aluminum straight tube.

5. The heat pipe solar water heater according to claim 3, wherein: The guide sleeve (6) is located on the pipe wall outside the water tank (1) and has external threads.

6. The heat pipe solar water heater according to claim 5, wherein: The guide sleeve (6) is provided with a sealing sleeve (11) at one end outside the water tank (1) to seal with the heat exchange straight pipe (5).

7. The heat pipe solar water heater according to claim 1, wherein: The bracket (2) is fixed with a support beam (4) supporting the lower end of the vacuum tube (3). The front end face of the support beam (4) is provided with a through hole (42) through which the conical protrusion (31) of the vacuum tube (3) passes. The through hole (42) is connected to the limiting hole (41) on the top surface of the support beam (4).

8. The heat pipe solar water heater according to claim 7, wherein: The support beam (4) is connected to the bracket (2) by bolts.

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