CN217737565U

CN217737565U - Conical spiral tube solar heat collector

Info

Publication number: CN217737565U
Application number: CN202221056966.3U
Authority: CN
Inventors: 宰祥鹏; 孙钦帅
Original assignee: Yuxin Sunshine Beijing Energy Technology Co ltd
Current assignee: Yuxin Sunshine Beijing Energy Technology Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-11-04
Anticipated expiration: 2032-05-05

Abstract

The utility model discloses a conical spiral tube solar heat collector, which comprises a water inlet, a water outlet, a back plate and a glass cover plate, and is characterized by also comprising a spiral tube group, wherein the spiral tube group consists of at least two spiral tube arrays, the spiral tube is conical, the outer wall of the spiral tube is coated with a solar selective heat absorption coating, the spiral tube is of a hollow structure, the spiral moment of the spiral tube is greater than the diameter of the spiral tube, and the spiral tube is provided with a heat collection inlet and a heat collection outlet; the back of the spiral tube group is provided with an arc-shaped light gathering reflection plate, the back of the light gathering reflection plate is made of a heat insulation material, the back of the heat insulation material is made of a metal back plate, the front of the spiral tube group is provided with a glass cover plate, and the side face of the spiral tube group is provided with a frame. The sunlight irradiates on the spiral tube group, and the heat absorption coating on the spiral tube group absorbs the sunlight and converts the sunlight into heat energy which is transmitted to the heat storage device. The utility model discloses an adopt the copper pipe as heat-absorbing body and runner, the security is high, and the thermal efficiency is high, but the vertical installation is at outdoor vertical roofing, and solar absorption area is big.

Description

Conical spiral pipe solar heat collector

Technical Field

The utility model relates to a clean energy solar thermal energy utilizes technical field, specifically is a toper spiral pipe solar collector.

Background

Solar energy is taken as a clean and pollution-free renewable energy source, has wide prospects and is more and more emphasized by all countries in the world, heating in winter in many parts in the north is carried out by changing coal into electricity and changing coal into gas, for vast rural areas, the problems of high price, potential safety hazard in use, harmful gas emission and the like of natural gas exist, the coal into electricity has electric capacity increasing, the investment of a power grid is large, and the use cost is high. The coal-to-solar energy is undoubtedly the best choice, the hot water circulation of using solar collector carries out the heating, and the running cost is low, and safe and reliable can also provide life hot water, bathing hot water etc.. The auxiliary electric heating is used in the shade in a few parts. Thus reducing the environmental pollution and saving the energy and the cost. The current national environmental protection policy supports solar water heating and heating more and more, and a billion-level solar market is about to come up in the future. The heat collector is used as a core heat collecting component of solar energy and is mainly used for absorbing the solar energy and converting the solar energy into heat energy.

At present, the solar heat collector mainly comprises a vacuum tube type heat collector and a flat plate heat collector, the vacuum tube type heat collector is high in heat absorption efficiency and small in heat loss, but the flat plate heat collector is a glass product and has fragile potential safety hazards, a heat absorption body of the flat plate heat collector is mostly made of copper-aluminum composite materials, the flat plate heat collector is welded on a whole plate, secondary heat exchange needs to be carried out by using antifreeze and water, heat transmission loss is large although the flat plate heat collector is safe, and the heat collector cannot be vertically installed. The solar altitude is big when installing perpendicularly in summer, and luminous flux is little.

Disclosure of Invention

The utility model provides a spiral tube solar heat collector can effectively solve the problem of safe in utilization, longe-lived, efficient, the perpendicular installation that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a conical spiral tube solar heat collector comprises a water inlet, a water outlet, a back plate and a glass cover plate, and is characterized by further comprising a spiral tube group, wherein the spiral tube group is composed of at least two spiral tube arrays, the spiral tube is conical, the conical angle is 15-60 degrees, a solar selective heat absorption coating is coated on the outer wall of the spiral tube, the spiral tube is of a hollow structure, the spiral moment of the spiral tube is larger than the diameter of the spiral tube, the spiral tube is provided with a heat collection inlet and a heat collection outlet, the heat collection inlet is connected with a water inlet main pipeline, and the heat collection outlet is connected with a water outlet main pipeline; the rear surface of the spiral pipe group is provided with an arc-shaped light gathering reflection plate, the back surface of the light gathering reflection plate is made of a heat insulation material, the back surface of the heat insulation material is made of a metal back plate, the front surface of the spiral pipe group is provided with a glass cover plate, the side surface of the spiral pipe group is provided with a frame, and the main water inlet pipe and the main water outlet pipe extend out from one side of the frame and are respectively connected with a water inlet and a water outlet; the glass cover plate, the metal back plate and the side frame form a closed space.

Preferably, the spiral pipe is made of copper, and the wall thickness is not less than 0.5mm.

Preferably, the heat absorption coating adopts a magnetron sputtering process.

Preferably, the reflecting surface of the light gathering reflecting plate is a parabolic space curved surface.

Preferably, the insulation material is polyurethane. The thickness of the heat insulation material is not less than 20mm.

Preferably, the glass cover plate is made of high-light-transmittance textured glass, and the light transmittance is over 95 percent.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses safe in utilization, the collection thermal efficiency is high:

1. the copper pipe is adopted to replace a glass pipe to serve as a heat absorbing body and a flow passage, the safety is high, the hidden danger of a large temperature difference explosion pipe does not exist, water directly flows in the flow passage, and the loss of secondary heat exchange is avoided.

2. When the heat collector is vertically installed, the solar energy and the heat collector always have a certain angle, so that the absorption area can be increased.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a side sectional view of the sealed box of the present invention;

FIG. 3 is an internal structural view of the present invention;

FIG. 4 is a front structural view of the spiral pipe of the present invention;

FIG. 5 is a side view of the spiral pipe of the present invention;

reference numbers in the figures: 1. the solar heat collector comprises a spiral pipe group, 11, a spiral pipe, 12, a heat absorption coating, 13, a heat collection inlet, 14, a heat collection outlet, 2, a water inlet main pipeline, 3, a water outlet main pipeline, 4, a light gathering reflection plate, 5, a heat insulation material, 6, a frame, 7, a back plate, 8, a glass cover plate, 9, a water inlet, 10 and a water outlet.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-4, the utility model provides a technical scheme, a toper spiral pipe solar collector, including water inlet 9, delivery port 10, backplate 7 and glass apron 8, still include spiral pipe group 1, spiral pipe group 1 comprises two at least spiral pipe 11 arrays, spiral pipe 11 is the toper, the toper angle is 15-60 degrees, spiral pipe 11 material is copper, thickness is not less than 0.5mm, scribble solar energy selectivity heat absorption coating 12 on the outer wall, heat absorption coating 12 adopts magnetron sputtering technology, spiral pipe 11 is hollow structure, the spiral pipe 11's spiral moment is greater than its diameter, the diameter of spiral pipe 11 is less than inlet main pipe 2 and outlet main pipe 3, spiral pipe 11 still is equipped with a thermal-arrest import 13 and a thermal-arrest export 14, thermal-arrest import 13 is connected with inlet main pipe 2, thermal-arrest export 14 is connected with outlet main pipe 3; the back of the spiral pipe group 1 is provided with a light condensation reflection plate 4, the surface of the light condensation reflection plate 4 is a paraboloid and can reflect sunlight to a conical spiral pipe, the back of the light condensation reflection plate 4 is made of a heat insulation material 5, the heat insulation material 5 is made of polyurethane foam, the thickness of the material is not less than 20mm, the back of the heat insulation material 5 is made of a metal back plate 7, the front of the spiral pipe group 1 is provided with a glass cover plate 8, the glass cover plate is made of high-light-transmission cloth grain glass, the side surface of the spiral pipe group 1 is provided with a frame 6, and the main water inlet pipe 2 and the main water outlet pipe 3 extend out of one side of the frame 6 and are respectively connected with a water inlet 9 and a water outlet 10; the glass cover plate 8, the metal back plate 7 and the frame 6 form a closed space.

The utility model discloses a theory of operation and use flow: sunlight irradiates on the spiral pipe set 1, the heat absorption coating on the spiral pipe set 1 absorbs the sunlight and converts the sunlight into heat energy, cold water enters from the water inlet main pipeline 2 and flows through the heat collection inlet 13, the spiral pipe set 1 and the heat collection outlet 14 to enter the water outlet main pipeline 3, and the water is heated by the spiral pipe set 1 while flowing and is changed into domestic hot water to be conveyed to the heat storage device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The solar heat collector with the conical spiral tubes as claimed in claim 1, which comprises a water inlet, a water outlet, a back plate and a glass cover plate, and is characterized by further comprising a spiral tube group, wherein the spiral tube group is composed of at least two spiral tube arrays, the spiral tubes are conical, and the conical angle is 15-60 degrees; the solar selective heat absorption coating is coated on the outer wall of the spiral pipe, the spiral pipe is of a hollow structure, the pitch of the spiral pipe is larger than the diameter of the spiral pipe, the spiral pipe is provided with a heat collection inlet and a heat collection outlet, the heat collection inlet is connected with the water inlet main pipeline, and the heat collection outlet is connected with the water outlet main pipeline; the rear surface of the spiral pipe group is provided with an arc-shaped light gathering reflection plate, the back surface of the light gathering reflection plate is made of a heat insulation material, the back surface of the heat insulation material is made of a metal back plate, the front surface of the spiral pipe group is provided with a glass cover plate, the side surface of the spiral pipe group is provided with a frame, and the main water inlet pipe and the main water outlet pipe extend out from one side of the frame and are respectively connected with a water inlet and a water outlet; the transparent glass cover plate, the metal back plate and the side frame form a closed space.

2. The solar thermal collector of claim 1 wherein the spiral tube is made of copper and has a wall thickness of no less than 0.5mm.

3. The solar collector according to claim 1 wherein the spiral tube heat absorption coating is applied by magnetron sputtering.

4. The solar thermal collector according to claim 1 wherein the light gathering reflector has a parabolic spatial curvature.

5. The solar thermal collector according to claim 1 wherein the thermal insulation material is polyurethane and the thickness of the thermal insulation material is not less than 20mm.

6. The solar collector according to claim 1 wherein the cover glass is a high light transmission textured glass with a light transmission of more than 95%.