CN214065333U

CN214065333U - Light-focusing heat collector

Info

Publication number: CN214065333U
Application number: CN202120067480.9U
Authority: CN
Inventors: 徐泽山; 徐致远
Original assignee: Yangzhou Xilai Solar Energy Technology Co ltd
Current assignee: Yangzhou Xilai Solar Energy Technology Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-08-27
Anticipated expiration: 2031-01-11

Abstract

The utility model belongs to the technical field of flat plate collectors, and relates to a light-focusing heat collector which is characterized by comprising a shell and a light-focusing groove arranged in the shell, wherein a vacuum heat collecting tube is arranged above the light-focusing groove; u-shaped tubes are arranged in the vacuum heat collecting tubes, and heat collecting flow passages are formed among the U-shaped tubes; the light-gathering groove comprises a groove body and a reflective membrane, the groove body is made of a foaming material, and the reflective membrane is arranged on the inner wall of the groove body. The utility model discloses it is big to be used for solving current reflection of light groove contour machining degree of difficulty, and the rate of concentration is low, technical problem with high costs.

Description

Light-focusing heat collector

Technical Field

The utility model belongs to the technical field of flat plate collector, concretely relates to spotlight heat collector.

Background

Solar energy is inexhaustible clean energy, the energy density of sunlight is low, the energy per square meter on the ground is about 500w, the temperature generated during solar heat utilization is low, the utilization range is limited, and the light-gathering solar heat utilization is one of better ways for utilizing the solar energy.

The existing concentrating solar heat collector structure generally comprises a shell, a glass cover plate, a light reflecting groove, a glass tube and a flow channel, wherein the light reflecting groove is arranged in the heat collector shell, in the manufacturing process of the light reflecting groove, a plurality of technologies are to use glass to manufacture and form an arc-shaped light reflecting lens, and a mirror surface steel plate is used to form a groove-shaped light reflecting groove.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a spotlight heat collector to it is big to solve current reflection of light groove shaping processing degree of difficulty, and the rate of concentration is low, technical problem with high costs.

In order to solve the technical problem, the utility model adopts the following technical scheme that the light-focusing heat collector is characterized by comprising a shell and a light-focusing groove arranged in the shell, wherein a vacuum heat collecting tube is arranged above the light-focusing groove; u-shaped tubes are arranged in the vacuum heat collecting tubes, and heat collecting flow passages are formed among the U-shaped tubes; the light-gathering groove comprises a groove body and a reflective membrane, the groove body is made of a foaming material, and the reflective membrane is arranged on the inner wall of the groove body.

By adopting the technical scheme, the method has the following beneficial effects:

first, the utility model discloses spotlight type solar heat collector, cell body are by the shaping of expanded material preparation, and the reflective membrane is pasted in the cell body, simple structure, and the preparation is simple and easy, and is with low costs.

Secondly, the vacuum heat collecting tube receives the light of the reflective membrane of the trough body, so that a U-shaped tube in the vacuum heat collecting tube is heated, the U-shaped tube outputs the absorbed heat out of the shell body through the heat collecting flow passage, the light condensation rate is high, and the heat collecting effect is good.

For solving the technical problem that the dust covers the reflective membrane and leads to reflecting light inefficiency, the utility model discloses a following technical scheme, set up the light-passing board on the casing, the light-passing board is located evacuated collector tube top.

By adopting the technical scheme, the method has the following beneficial effects: the utility model discloses set up the light-passing board on the casing, a sealed storehouse body is constituteed with the casing to the light-passing board, can prevent that dust covers the reflective membrane in the environment, avoids influencing reflection of light efficiency.

For solving the technical problem that the thermal-arrest runner how to arrange, the utility model discloses a following technical scheme, parallelly connected setting between evacuated collector tube's the U-shaped pipe forms the thermal-arrest runner for independent separately between the U-shaped pipe, prevent a U-shaped pipe trouble, lead to the unable thermal-arrest of realizing of whole thermal-arrest runner.

For solving the technical problem how to arrange the hot runner of collection, the utility model discloses a following technical scheme, establish ties between evacuated collector tube's the U-shaped pipe and set up, form the thermal-arrest runner. And a pipeline is adopted, so that the number of interfaces is reduced, and the sealing effect is ensured.

In order to solve the technical problem of how to arrange the serially-connected U-shaped pipes, the utility model adopts the following technical scheme that the heat collecting flow channel further comprises a water inlet guide pipe, a water outlet guide pipe, a water inlet converging pipe fitting and a water outlet converging pipe fitting, wherein the water inlet converging pipe fitting and the water outlet converging pipe fitting are arranged on the shell; the water inlet end and the water outlet end of the U-shaped pipe outside the vacuum heat collecting pipe are respectively provided with a water inlet guide pipe and a water outlet guide pipe, the water inlet guide pipe is connected with the water inlet confluence pipe fitting, and the water outlet guide pipe is connected with the water outlet confluence pipe fitting.

By adopting the structure, the structure has the following beneficial effects: the utility model discloses a business turn over water inlet and outlet guide pipe and business turn over water confluence pipe fitting lug connection, the guide pipe is small for the structure of casing is compacter. In addition, the independence of a single heat collection flow channel is ensured, and later maintenance is facilitated.

In order to solve the technical problem of how to arrange the U-shaped tubes arranged in series, the utility model adopts the following technical scheme that the heat collecting flow channel also comprises a water inlet main pipe and a water outlet main pipe, the water inlet main pipe and the water outlet main pipe are arranged on the shell, one end of the water inlet main pipe and one end of the water outlet main pipe are blind pipes, the other end of the water inlet main pipe and the other end of the water outlet main pipe extend out of the shell, and the water inlet end of the U-shaped tube of the evacuated collector tube is connected with the water inlet main pipe; the water outlet end of the U-shaped pipe of the vacuum heat collecting pipe is connected with the water outlet main pipe.

By adopting the structure, the structure has the following beneficial effects: only need add water inlet manifold, play water header pipe in the casing, the U-shaped pipe is direct to be connected with water inlet manifold/play water header pipe, has reduced the flex point of U-shaped pipe, guarantees that the heat medium in the thermal-arrest runner flows more smoothly.

For solving the collection thermal efficiency technical problem who how to improve the U-shaped pipe, the utility model discloses a following technical scheme, the U-shaped pipe body outside sets up the fin, absorbs the heat in the vacuum heat collecting pipe through the fin, improves the collection thermal efficiency of U-shaped pipe.

For solving the collecting efficiency technical problem who how to improve the U-shaped pipe, the utility model discloses a following technical scheme, spotlight heat collector still includes the heat-conducting plate, and the heat-conducting plate is located U type outside of tubes, in the vacuum heat collecting pipe, absorbs the intraductal heat of vacuum heat collecting through the heat-conducting plate, improves the collecting efficiency of U-shaped pipe.

For solving the technical problem how the reflective membrane sets up at the internal wall of cell, the utility model discloses a following technical scheme, the reflective membrane pastes on the cell inner wall, easy operation, and is with low costs.

Drawings

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

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;

FIG. 4 is a cross-sectional view of FIG. 3;

fig. 5 is a schematic structural view of a heat collecting flow channel according to embodiment 3 of the present invention;

fig. 6 is a schematic structural view of a heat collecting flow channel according to embodiment 4 of the present invention.

Detailed Description

Example 1

As shown in fig. 1-2, a light-focusing heat collector comprises a shell 1, a light-focusing groove 2 arranged in the shell 1, and a heat-insulating material 5.

A vacuum heat collecting pipe 3 is arranged above the light gathering groove 2; u-shaped tubes 4 are arranged in the vacuum heat collecting tubes 3, and heat collecting flow passages are formed among the U-shaped tubes.

The light-gathering groove 2 comprises a groove body 2-1 and a reflective film 2-2, the groove body 2-1 is made of a foaming material, and the reflective film 2-2 is adhered to the inner wall of the groove body 2-1.

The heat collection flow passage further comprises a water inlet guide pipe 6-1, a water outlet guide pipe 6-2, a water inlet converging pipe 6-3 and a water outlet converging pipe 6-4, wherein the water inlet converging pipe and the water outlet converging pipe are arranged on the shell; the water inlet end and the water outlet end of the U-shaped pipe outside the vacuum heat collecting pipe are respectively provided with a water inlet guide pipe and a water outlet guide pipe, the water inlet guide pipe is connected with the water inlet confluence pipe fitting, and the water outlet guide pipe is connected with the water outlet confluence pipe fitting. The U-shaped tubes of the vacuum heat collecting tubes are arranged in parallel to form a heat collecting flow passage.

Fins are arranged on the outer side of the U-shaped pipe body.

The light-focusing heat collector also comprises a heat conducting plate 4-1 which is positioned outside the U-shaped pipe and inside the vacuum heat collecting pipe.

The working process of the concentrating collector comprises the following steps: the U-shaped tube receives the light of the reflective membrane of the trough body, so that the U-shaped tube arranged in the vacuum heat collection tube is heated, and the absorbed heat is output out of the shell through the heat collection flow passage.

Example 2

As shown in fig. 3 and 4, the light-concentrating heat collector comprises a shell 1, a light-concentrating groove 2 arranged in the shell 1, and a heat-insulating material 5.

The vacuum heat collecting tube 3 is arranged above the light gathering groove; u-shaped tubes 4 are arranged in the vacuum heat collecting tubes, and heat collecting flow passages are formed among the U-shaped tubes.

The light-gathering groove comprises a groove body 2-1 and a reflective membrane 2-2, wherein the groove body 2-1 is made of a foaming material, and the reflective membrane 2-2 is arranged on the inner wall of the groove body.

Different from embodiment 1, embodiment 2 further includes a light-transmitting plate 7, and the light-transmitting plate 7 is disposed on the housing 1 and located above the evacuated solar collector tube.

The working process of the concentrating collector comprises the following steps: the light-transmitting plate and the shell form a sealed bin body, so that dust in the environment can be prevented from covering the light-reflecting film to influence the light-reflecting efficiency. And receiving the light of the reflecting film of the groove body so as to heat a U-shaped pipe arranged in the vacuum heat collecting pipe, wherein the U-shaped pipe outputs the absorbed heat out of the shell through the heat collecting flow passage.

Example 3

As shown in fig. 5, unlike embodiment 1, the heat collecting channel further includes a water inlet manifold 8-1 and a water outlet manifold 8-2.

The water inlet manifold 8-1 and the water outlet manifold 8-2 are arranged on the shell 1, one ends of the water inlet manifold 8-1 and the water outlet manifold 8-2 are blind pipes, and the other ends of the water inlet manifold 8-1 and the water outlet manifold 8-2 extend out of the shell 1.

The water inlet end of the U-shaped pipe 4 in the vacuum heat collecting pipe 3 is connected with the water inlet main pipe 8-1, and the water outlet end of the U-shaped pipe 4 in the vacuum heat collecting pipe 3 is connected with the water outlet main pipe 8-2.

Example 4

As shown in fig. 6, unlike embodiment 1, U-shaped tubes of the evacuated collector tube are connected in series to form a collector channel.

Claims

1. A light-focusing heat collector is characterized by comprising a shell and a light-focusing groove arranged in the shell, wherein a vacuum heat collecting tube is arranged above the light-focusing groove; u-shaped tubes are arranged in the vacuum heat collecting tubes, and heat collecting flow passages are formed among the U-shaped tubes; the light-gathering groove comprises a groove body and a reflective membrane, the groove body is made of a foaming material, and the reflective membrane is arranged on the inner wall of the groove body.

2. The concentrating collector of claim 1, wherein the housing is provided with a light-transmitting plate, and the light-transmitting plate is located above the evacuated collector tube.

3. The light-concentrating heat collector according to claim 1 or 2, wherein the U-shaped tubes of the evacuated heat collecting tubes are arranged in parallel to form a heat collecting flow passage.

4. The concentrating collector according to claim 1 or 2, wherein the U-shaped tubes of the evacuated collector tubes are connected in series to form a collector channel.

5. The concentrating collector according to claim 3, wherein the collector channel further comprises a water inlet guide pipe, a water outlet guide pipe, a water inlet converging pipe fitting and a water outlet converging pipe fitting, and the water inlet converging pipe fitting and the water outlet converging pipe fitting are arranged on the shell; the water inlet end and the water outlet end of the U-shaped pipe outside the vacuum heat collecting pipe are respectively provided with a water inlet guide pipe and a water outlet guide pipe, the water inlet guide pipe is connected with the water inlet confluence pipe fitting, and the water outlet guide pipe is connected with the water outlet confluence pipe fitting.

6. The concentrating collector of claim 3, wherein the collector channel further comprises a water inlet main pipe and a water outlet main pipe, the water inlet main pipe and the water outlet main pipe are arranged on the shell, one end of the water inlet main pipe and one end of the water outlet main pipe are blind pipes, the other ends of the water inlet main pipe and the water outlet main pipe extend out of the shell, and the water inlet end of the U-shaped pipe of the evacuated collector tube is connected with the water inlet main pipe; the water outlet end of the U-shaped pipe of the vacuum heat collecting pipe is connected with the water outlet main pipe.

7. The light concentrating collector of claim 1 wherein the tube body of the U-shaped tube is finned on the outside.

8. The concentrating collector according to claim 1 or 7, further comprising a heat conducting plate located outside the U-shaped tube and inside the evacuated collector tube.

9. The light-concentrating heat collector according to claim 1, wherein the reflective film is adhered to the inner wall of the trough body.