CN2874359Y - Solar energy collector - Google Patents

Abstract

The utility model discloses a solar heat collector with very good heat conduction effect. The solar heat collector is composed of a housing, a group of solar vacuum tubes for absorbing solar heat, and water inlet and outlet tubes for transporting water in and out. The solar vacuum tubes are provided with heat-conducting tubes, The two ports of the heat pipe are respectively connected to the water inlet and outlet pipes. In the solar heat collector of the utility model, the inner wall of the solar vacuum tube and the outer wall of the heat-conducting tube are closely bonded, and the heat-conducting tube adopts a U-shaped tube or a spiral coil tube, which can increase heat transfer with the solar vacuum tube, which can better Perform heat exchange, thereby improving the thermal conductivity of the solar collector.

Description

Solar collectors

technical field

The utility model relates to a solar energy device, in particular to a solar heat collector which utilizes solar energy to convert light and heat.

Background technique

At present, with the popularization of environmental protection knowledge, the awareness of environmental protection has gradually become popular among the people. Clean energy that is conducive to environmental protection, such as solar energy, is particularly favored, and the demand is increasing. Along with the development of solar energy application technology, the solar water heater that utilizes solar heat collector to heat is more and more widely used. The heat collecting components of existing solar water heaters mostly adopt solar vacuum tubes made of glass or copper tube fin type heat collecting systems under flat glass.

The structure of the heat collecting part of the solar water heater with the above structure is relatively simple, the heat exchange rate between the heat collecting part and water is low, and the effect of heat conduction is relatively poor.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a solar heat collector with high heat conduction efficiency and high hot water output rate.

In order to achieve the above object, the technical solution of the utility model is as follows:

A solar heat collector, which consists of a housing, a group of solar vacuum tubes for absorbing solar heat, and water inlet and outlet pipes for transporting water in and out, is characterized in that: the solar vacuum tube is equipped with The heat conduction pipe, the two ports of the heat conduction pipe are respectively connected to the water inlet and outlet pipes.

Further, the solar vacuum tube is made of heat-absorbing materials such as glass.

Further, the solar vacuum tube is fixed on the shell with a bracket.

Further, the water inlet and outlet pipes and heat conduction pipes are made of heat conduction materials such as copper, aluminum, and stainless steel.

Further, the heat pipe is a U-shaped pipe or a spiral coil.

Further, heat insulation materials such as foam plastics are used to wrap the water inlet and outlet pipes for heat preservation.

Further, the inner wall of the solar vacuum tube is closely attached to the outer wall of the heat pipe.

Further, the two ports of the heat pipe and the water inlet and outlet pipes are welded by soldering tin.

Further, the contact between the nozzle of the solar vacuum tube and the water inlet and outlet pipes is sealed by a sealing ring.

In the solar heat collector of the utility model, the inner wall of the solar vacuum tube and the outer wall of the heat-conducting tube are closely bonded, and the heat-conducting tube adopts a U-shaped tube or a spiral coil tube, which can increase heat transfer with the solar vacuum tube, which can better Perform heat exchange, thereby improving the thermal conductivity of the solar collector.

Description of drawings

Fig. 1 is a structural schematic diagram of a solar heat collector of the present invention.

Detailed ways

Below in conjunction with embodiment the utility model is further described.

Example

Referring to Fig. 1, a solar heat collector is composed of a housing 1, a group of solar vacuum tubes 2 for absorbing solar heat, and water inlet and outlet pipes 3 and 4 for water flow. The solar vacuum tube 2 is provided with a heat pipe 5, and the two ports 51 and 52 of the heat pipe are respectively connected to the water inlet and outlet pipes.

The solar vacuum tube 2 is made of heat-absorbing materials such as glass, which can fully absorb the heat of the sun, conduct heat to the water in the heat-conducting tube 5, and play a role in heating the water temperature. The solar vacuum tube 2 is fixed on the casing 1 with a bracket 11 . In the present embodiment, the water inlet and outlet pipes 3 and 4 and the heat conduction pipe 5 are made of copper, but they can also be made of other heat conduction materials such as aluminum and stainless steel. The heat conduction tube 5 in this embodiment is a U-shaped tube, but a spiral coil can also be used. The spiral coil can increase the heat conduction area, and has higher heat conduction efficiency than the U-shaped tube. Generally, the water inlet pipe 3 and the water outlet pipe 4 are pipes with a diameter of 20-25 mm, and the heat-conducting pipe 5 is a pipe with a diameter of 0.8-1 mm. Of course, the diameter of the pipes can also be changed as required.

The inlet and outlet pipes 3 and 4 are wrapped with heat insulating materials such as foam plastics or filled with heat insulation materials such as foam plastics between the water inlet pipe 3 and the water outlet pipe 4 to achieve heat insulation and heat preservation. Leaving a gap between the water inlet pipe 3 and the water outlet pipe 4 is also convenient for installing and fixing the water inlet pipe 3 and the water outlet pipe 4 . The inner wall 21 of the solar vacuum tube 2 is closely attached to the outer wall 53 of the heat pipe 5, and the solar vacuum tube 2 fully transfers the absorbed solar heat to the heat pipe 5 to heat the water in the heat pipe 5.

The water inlet pipe 3 and the water outlet pipe 4 are installed on the top of the housing 1, and the two ports 51 and 52 of the heat pipe 5 are respectively connected to the water inlet pipe 3 and the water outlet pipe 4. The two ports of the heat pipe 5 51 and 52 are welded with the water inlet pipe 3 and the water outlet pipe 4 by soldering. The contact between the nozzle 21 of the solar vacuum tube 2 and the water inlet and outlet pipes 3 and 4 is sealed by a sealing ring (not shown). The solar vacuum tube 2 is put on the outside of the heat pipe 5 to form a whole solar heat collector.

Water flows in from the water inlet pipe 3, and then flows into each heat pipe 5 from the port 51. During the day, the solar vacuum tube 2 fully absorbs the heat of the sun, and then transfers the absorbed heat to the water in the heat pipe 5, so that the water absorbs The heat is used for heating, and the heated water flows into the water outlet pipe 4 through the port 52 and then flows out. Through the absorption and heating of the heat of each heat pipe 5 and the circulation of water flow, the water in the heat pipe 5 can be heated quickly for use by users. A water pump can also be connected to the nozzle 31 of the water inlet pipe 3, and the pressure of the water pump can promote the flow of the water, accelerate the efficiency of heat exchange, and make the solar heat collector of the present utility model conduct heat better.

Of course, this embodiment is not intended to limit the utility model, and those of ordinary skill in the art can still make various changes to this embodiment. Therefore, all similar structures and similar changes of the utility model should be included in this specification The protection scope of the utility model is the protection scope of the claims.

Claims (12)

1. A solar heat collector, consisting of a housing, a group of solar vacuum tubes for absorbing solar heat, and water inlet and outlet pipes for transporting water in and out, characterized in that: the solar vacuum tubes A heat conduction pipe is provided, and the two ports of the heat conduction pipe are respectively connected to the water inlet and outlet pipes. 2. The solar heat collector according to claim 1, wherein the solar vacuum tube is made of heat-absorbing materials such as glass. 3. The solar heat collector according to claim 1, characterized in that: the solar vacuum tube is fixed on the casing 1 with a bracket 11 4. The solar heat collector according to claim 1, characterized in that: said water inlet and outlet pipes and heat conduction pipes are copper pipes. 5. The solar heat collector according to claim 4, characterized in that: said water inlet and outlet pipes and heat conduction pipes can also be aluminum pipes. 6. The solar heat collector according to claim 4, characterized in that: the water inlet and outlet pipes and heat conduction pipes can also be stainless steel pipes. 7. The solar heat collector according to claim 1, characterized in that: said heat pipe is a U-shaped pipe. 8. The solar heat collector according to claim 7, characterized in that: said heat pipe can also be a spiral coil. 9. The solar heat collector as claimed in claim 1, characterized in that: said water inlet and outlet pipes are wrapped with insulation materials such as foam plastics to keep them warm. 10. The solar heat collector according to claim 1, characterized in that: the inner wall of the solar vacuum tube and the outer wall of the heat pipe are in close contact. 11. The solar heat collector according to claim 1, characterized in that: the two ports of the heat pipe and the water inlet and outlet pipes are welded by solder. 12. The solar heat collector according to claim 1, characterized in that: the contact between the nozzle of the solar vacuum tube and the inlet and outlet pipes is sealed by a sealing ring.

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