CN214841736U

CN214841736U - Novel solar heat collector

Info

Publication number: CN214841736U
Application number: CN202121458791.4U
Authority: CN
Inventors: 聂雨; 钟平; 史燕红; 宋金时; 单绍荣; 王安庆
Original assignee: Xian Thermal Power Research Institute Co Ltd; Suzhou Xire Energy Saving Environmental Protection Technology Co Ltd
Current assignee: Xian Thermal Power Research Institute Co Ltd; Suzhou Xire Energy Saving Environmental Protection Technology Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-11-23
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses a novel solar thermal collector, including a plurality of groups heat collector systems of putting together, every group heat collector system all includes the glass apron that from top to bottom sets gradually, the heat-collecting tube bank, heat-conducting plate and heat conduction fluid pipeline, the heat-collecting tube bank includes the vertical thermal-collecting tube of placing between glass apron and heat-conducting plate of a plurality of roots, the thermal-collecting tube inner wall has plated the black nickel coating, be vacuum state in the thermal-collecting tube, pack the working medium in the heat conduction fluid pipeline, carry out the thermal-arrest through the heat-collecting tube bank, carry out heat transfer and add the working medium in the heat conduction fluid pipeline through the heat-conducting plate. The utility model provides a novel solar collector, solar energy absorption rate exceed 99%, are far above current flat plate collector's solar energy absorption rate, and simultaneously, the device's area utilization rate is close flat plate collector, but the heat loss is far below flat plate collector, and the heat collector system can be according to the nimble aggregate erection of heat load's needs, and scene adaptability is good, is fit for the industrialization and uses widely.

Description

Novel solar heat collector

Technical Field

The utility model belongs to the technical field of solar collector, concretely relates to novel solar collector.

Background

A solar collector is a device that converts radiant energy of the sun into thermal energy. Since solar energy is relatively dispersed and must be concentrated, collectors are a key part of various solar energy utilization devices. The solar heat collector has various types, the most common heat collectors are a flat plate heat collector and a vacuum tube heat collector, the flat plate heat collector has a simple structure and a large utilization area, the solar energy absorption rate is about 93 percent, the efficiency is higher than that of the vacuum tube heat collector, but the heat loss of the flat plate heat collector is larger; the vacuum tube heat collector is contrarily limited by the arrangement of the tube bundles, so that the area utilization rate is not high, but the heat absorption tubes are arranged in the vacuum tubes, so that the heat loss of the vacuum tube heat collector is small. How to design a heat collector device with high area utilization rate and small heat loss has important practical significance.

SUMMERY OF THE UTILITY MODEL

For solving the problems in the prior art, an object of the utility model is to provide a novel solar heat collector.

In order to realize the above purpose, reach above-mentioned technological effect, the utility model discloses a technical scheme be:

the utility model provides a novel solar collector, includes a plurality of groups end to end or array group's heat collector system together, every group heat collector system all includes glass apron, heat collection tube bank, heat-conducting plate and the heat conduction fluid pipeline that from top to bottom sets gradually, heat collection tube bank includes that a plurality of vertical parallels place the thermal-collecting tube between glass apron and heat-conducting plate, and the thermal-collecting tube both ends are covered and its inside vacuum state that is by glass apron and heat-conducting plate, and the thermal-collecting tube inner wall has plated the black nickel coating, and the thermal-collecting tube inner wall is unsmooth, packs working medium in the heat conduction fluid pipeline, carries out the thermal-arrest through heat collection tube bank, carries out the heat transfer through the heat-conducting plate and heats the working medium in the heat conduction fluid pipeline.

Furthermore, the glass cover plate and the heat collecting tube bundle are bonded into a whole through high-temperature curing epoxy resin glue, a first black nickel coating is arranged on one surface, facing the heat collecting tube bundle, of the glass cover plate, and an anti-fouling weather-resistant layer is arranged on one surface, facing away from the heat collecting tube bundle, of the glass cover plate.

Further, the thickness of the first black nickel coating is 0.5-2 mm.

Further, the thickness of the anti-fouling weather-resistant layer is 1-2.5 mm.

Furthermore, the upper surface and the lower surface of the heat conducting plate are respectively welded with the heat collecting pipe bundle and the heat conducting fluid pipeline into a whole.

Furthermore, the outer wall of the heat-conducting fluid pipeline is provided with a heat-insulating layer with the thickness of 2-5 mm.

Furthermore, the heat collecting pipes are made of heat conducting metal, two adjacent heat collecting pipes are bonded into a whole through high temperature resistant glue, and the roughness of the inner walls of the heat collecting pipes is larger than 1.8.

Furthermore, the inner wall of the heat collecting tube is plated with a black nickel coating with the thickness of 1-4 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a novel solar thermal collector, including the heat collector system that a plurality of groups head and the tail are put together, every group heat collector system all includes glass apron, heat-collecting tube bank, heat-conducting plate and the heat conduction fluid pipeline that from top to bottom sets gradually, the heat-collecting tube bank includes that a plurality of vertical parallels are placed in the thermal-collecting tube between glass apron and heat-conducting plate, and the thermal-collecting tube both ends are covered and its inside vacuum state that is by glass apron and heat-conducting plate, and the thermal-collecting tube inner wall has plated the black nickel coating, and the thermal-collecting tube inner wall is uneven, packs working medium in the heat conduction fluid pipeline, carries out the thermal-arrest through the heat-conducting plate in heat transfer and the heat conduction fluid pipeline. The utility model provides a novel solar collector, solar energy absorption rate exceed 99%, are far above current flat plate collector's solar energy absorption rate, and simultaneously, the device's area utilization rate is close flat plate collector, but the heat loss is far below flat plate collector, and the heat collector system can be according to the nimble aggregate erection of heat load's needs, and scene adaptability is good, is fit for the industrialization and uses widely.

Drawings

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

FIG. 2 is a schematic diagram of the present invention;

FIG. 3 is a schematic view of the assembly structure of the heat collector system of the present invention;

fig. 4 is a top view of the heat collecting tube bundle of the present invention.

Detailed Description

The embodiments of the present invention are described in detail below to make the advantages and features of the present invention easier to understand by those skilled in the art, thereby making more clear and definite definitions of the protection scope of the present invention.

As shown in figures 1-4, a novel solar heat collector comprises a plurality of groups of heat collector systems which are combined end to end or in an array, each group of heat collector systems comprises a glass cover plate 1, a heat collecting tube bundle 2, a heat conducting plate 3 and a heat conducting fluid pipeline 4 which are sequentially arranged from top to bottom, one end of the heat collecting tube bundle 2 is welded on the heat conducting plate 3, the other end of the heat collecting tube bundle is tightly combined with the glass cover plate 1, the glass cover plate 1 covers the top of the heat collecting tube bundle 2, the heat collecting tube bundle 2 comprises a plurality of heat collecting tubes which are vertically and parallelly arranged between the glass cover plate 1 and the heat conducting plate 3, the two ends of each heat collecting tube are covered by the glass cover plate 1 and the heat conducting plate 3, the inner parts of the heat collecting tubes are in a vacuum state, each heat collecting tube is composed of heat conducting metals such as a copper tube or an aluminum alloy tube, the inner wall of each heat collecting tube is plated with a black nickel coating with the thickness of 1-4mm, and two adjacent heat collecting tubes are mutually bonded into a whole through a high temperature resistant glue, the heat collecting pipe has the advantages that welding is not needed, the processing difficulty is reduced, the roughness of the inner wall of the heat collecting pipe is larger than 1.8, incident light is guaranteed to be subjected to diffuse reflection and is completely absorbed in the heat collecting pipe, working media are filled in the heat conducting fluid pipeline 4, the working media can be water or heat conducting oil, heat collection is carried out through the heat collecting pipe bundle 2, and heat transfer is carried out through the heat conducting plate 3 and the working media in the heat conducting fluid pipeline 4 are heated.

Glass apron 1 and thermal-collecting tube are restrainted 2 between and are glued through high temperature curing epoxy glue and become an organic whole, and glass apron 1 sets up first black nickel coating towards the one side of thermal-collecting tube 2, and glass apron 1 sets up anti-soil resistant layer of waiting dorsad thermal-collecting tube 2's one side, improves resistant dirt ability, resistant ability of waiting, increase of service life.

The thickness of the first black nickel coating is 0.5-2 mm.

The thickness of the anti-fouling weather-resistant layer is 1-2.5 mm.

The heat conducting plate 3 is made of copper plates or aluminum alloy plates, and the heat collecting tube bundle 2 and the heat conducting fluid pipeline 4 are respectively welded on the two opposite upper and lower surfaces of the heat conducting plate 3.

The outer wall of the heat-conducting fluid pipeline 4 is provided with a heat-insulating layer with the thickness of 2-5 mm.

The utility model discloses a theory of operation does:

sunlight can reflect back and forth in the heat collecting pipe bundle 2 after being incident into the heat collecting pipe bundle 2 and is finally completely absorbed, the temperature of the heat collecting pipe bundle 2 is raised after solar energy is absorbed, heat is transferred to working media in the heat conducting fluid pipeline 4 below through the heat conducting plate 3, the low-temperature working media absorb the heat and are changed into high-temperature fluid to flow out, and the heat loss can be greatly reduced as the heat insulating layer is attached to the outer side of the heat conducting fluid pipeline 4.

The utility model has the advantages that:

for the ordinary flat plate collector, the absorptivity is highest only when sunshine is arranged in the normal direction, and for the incident light of other angles, the incident light can be reflected by a part equivalent to the normal direction, so the flat plate collector has higher requirement on the installation angle, and for the solar collector of the utility model, the incident light of any angle can be totally absorbed by multiple reflection in the heat collecting tube bundle 2, so the solar collector of the utility model is more flexible to install and can be suitable for various installation scenes;

in addition, current flat plate collector is direct and the air contact, along with the rising of heat collector temperature, and heat dissipation loss is great, and the utility model provides a heat collector is because the inside evacuation of heat collection tube bank 2, and the air can't be directly heated the face heat transfer with heat collection tube bank 2, therefore heat dissipation loss is far less than ordinary flat plate heat exchanger.

The utility model discloses the part of not specifically describing adopt prior art can, do not describe here any more.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a novel solar collector, a serial communication port, including a plurality of groups end to end or array group's heat collector system together, every group heat collector system all includes glass apron (1), thermal-collecting tube bundle (2), heat-conducting plate (3) and heat conduction fluid pipeline (4) that from top to bottom set gradually, thermal-collecting tube bundle (2) include the thermal-collecting tube of a plurality of vertical parallels place between glass apron (1) and heat-conducting plate (3), and the thermal-collecting tube both ends are covered and its inside vacuum state by glass apron (1) and heat-conducting plate (3), and the thermal-collecting tube inner wall has plated the black nickel coating, and the thermal-collecting tube inner wall is uneven, packs working medium in heat conduction fluid pipeline (4), carries out the thermal-arrest through thermal-collecting tube bundle (2), carries out heat transfer and heats working medium in heat conduction fluid pipeline (4) through heat-conducting plate (3).

2. The novel solar heat collector as claimed in claim 1, wherein the glass cover plate (1) and the heat collecting tube bundle (2) are bonded into a whole by high-temperature curing epoxy resin, a first black nickel coating is arranged on one surface of the glass cover plate (1) facing the heat collecting tube bundle (2), and an anti-fouling weather-resistant layer is arranged on one surface of the glass cover plate (1) opposite to the heat collecting tube bundle (2).

3. A novel solar collector as claimed in claim 2, wherein the thickness of the first black nickel coating is 0.5-2 mm.

4. The novel solar heat collector as claimed in claim 2, wherein the thickness of the anti-fouling and weather-resistant layer is 1-2.5 mm.

5. A novel solar heat collector as claimed in claim 1, characterized in that the heat conducting plate (3) is welded with the heat collecting tube bundle (2) and the heat conducting fluid pipe (4) respectively on the upper and lower surfaces.

6. A novel solar collector according to claim 1, characterized in that the outer wall of the heat conducting fluid pipe (4) is provided with an insulating layer with the thickness of 2-5 mm.

7. The novel solar heat collector as claimed in claim 1, wherein the heat collecting tubes are made of heat conducting metal, two adjacent heat collecting tubes are bonded together through high temperature resistant glue, and the roughness of the inner walls of the heat collecting tubes is larger than 1.8.

8. A novel solar heat collector as claimed in claim 1, wherein the inner wall of the heat collecting tube is plated with black nickel coating with thickness of 1-4 mm.