CN214469411U

CN214469411U - Solar low-temperature heat energy acquisition device

Info

Publication number: CN214469411U
Application number: CN202120638224.0U
Authority: CN
Inventors: 高文永
Original assignee: Baoding Qianyu Nano Technology Co ltd
Current assignee: Baoding Qianyu Nano Technology Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-10-22
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a solar energy low temperature heat energy acquisition device, including the plastics main part, be provided with middle flute in the plastics main part, the top face of plastics main part is equipped with the photic layer, and the middle part of plastics main part is equipped with light-heat conversion layer, and light-heat conversion layer is divided into upper and lower two-layer circulation chamber with the plastics main part. The utility model provides the high heat conversion rate of solar energy low temperature heat energy has simple to operate, the appearance is variable, save space, advantage with low costs.

Description

Solar low-temperature heat energy acquisition device

Technical Field

The utility model relates to a solar energy utilizes technical field, more specifically relates to a solar energy low temperature heat energy acquisition device.

Background

The solar power generation mode has two technical approaches of photovoltaic power generation and solar photo-thermal power generation, and the solar photovoltaic power generation technology has great fluctuation of output power of a power station and great difficulty in power grid absorption, so that the phenomenon of light abandonment with a high proportion exists in China in recent years. Compared with a solar photovoltaic power generation technology, the solar photo-thermal power generation technology has the advantages of stable power generation and energy storage (through a heat storage mode), and electric power is easier to be absorbed by a power grid and users. Especially in the case where photovoltaic power plants have been established on a large scale, it is very important to develop a solar thermal power generation technology. Air has the advantages of no phase change in a wide range, easiness in obtaining, no toxicity and the like, and the solar thermal power generation technology using the air as a heat transfer medium is considered to have a very wide development prospect.

The current photo-thermal conversion is to absorb solar energy and transfer heat to a heat transfer working medium through a solar vacuum heat collecting tube and a flat plate heat collector. However, the current absorber plates are basically tubular and flat, which results in limited area for absorbing solar radiation energy; on the other hand, the main structure of the device is mainly toughened glass and a metal frame, so that the production cost is high; finally, due to materials and processes, various pipelines are required to be connected when the high-temperature air-conditioning heat exchanger is installed in a large area, the requirement on the sealing performance is high, and the heat conversion rate of low-temperature air is not high. Therefore, a solar low-temperature thermal energy acquisition device is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve provides a solar energy low temperature heat energy acquisition device to solve the not high problem of solar energy low temperature heat conversion rate, in order to improve solar energy low temperature heat energy conversion rate.

In order to solve the technical problem, the utility model adopts the following technical proposal.

A solar low-temperature heat energy acquisition device comprises a plastic main body which is cuboid and has good light transmission, wherein a middle corrugation which is through from front to back and used for supporting the plastic main body is vertically arranged in the plastic main body; the top end face of the plastic main body is provided with a light receiving layer, and the middle part of the plastic main body is provided with a light-heat conversion layer which is parallel to the light receiving layer and is used for converting solar radiation energy into heat; the photothermal conversion layer divides the plastic main body into an upper layer and a lower layer and is used for a circulation cavity through which a heat-conducting medium passes.

According to the technical scheme, a heat insulation layer used for insulating air is arranged below the top end face of the plastic main body.

Further optimize technical scheme, it evenly offers a plurality of circulation micropores that are used for the circulation of air to open on the light-heat conversion layer.

Further optimize technical scheme, the circulation micropore is the circular port.

Due to the adoption of the technical scheme, the utility model has the following technical progress.

The utility model provides a solar low-temperature heat energy acquisition device, which adopts a corrugated plastic main body structure, and increases the impact resistance, durability and structural strength of the whole device; the plastic main body is made of plastic materials with good light transmittance, has the characteristic of changeable appearance, and can mould the shape of the plastic main body according to the appearance structure of a building. The utility model provides the high heat conversion rate of solar energy low temperature heat energy has simple to operate, the appearance is variable, save space, advantage with low costs.

Drawings

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

FIG. 2 is a top view of the light-to-heat conversion layer of the present invention with flow-through pores;

FIG. 3 is a top view of the photothermal conversion layer of the present invention without the flow-through micropores;

fig. 4 is a schematic structural diagram of embodiment 3 of the present invention;

wherein: 1. the solar cell comprises a plastic main body, 2, an intermediate corrugation, 3, a light receiving layer, 4, a circulation cavity, 5, a photothermal conversion layer, 6, a heat insulation layer, 7, an intermediate hole, 8 and a circulation micropore.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

A solar low-temperature heat energy acquisition device is shown in figures 1 to 4 and comprises a plastic main body 1, an intermediate corrugation 2, a light receiving layer 3, a circulation cavity 4, a light-heat conversion layer 5, a heat preservation layer 6, an intermediate hole 7 and circulation micropores 8.

The plastic main body 1 is in a cuboid shape, and the light transmittance is 80% -93%; the middle corrugated layer 2 which is transparent in the front and the back is vertically arranged in the plastic main body 1, and the middle corrugated layer 2 is used for supporting the plastic main body 1, so that the overall stability and impact resistance are improved. The plastic main body and the middle corrugated layer are made of materials such as organic high-temperature-resistant transparent resin and inorganic glass through treatment such as antistatic treatment, ultraviolet resistance and flame retardance; wherein the organic plastic is selected from PC, polymethyl methacrylate, PVC, etc.

The top end face of the plastic main body 1 is provided with a light receiving layer 3, the middle part of the plastic main body 1 is provided with a light-heat conversion layer 5 parallel to the light receiving layer 3, and the light-heat conversion layer 5 is used for converting solar radiation energy into heat. The photothermal conversion layer 5 is made of metal foil (or sheet), organic and inorganic composite material or organic material by sputtering, electroplating, spraying, doping or by direct pressing. The photothermal conversion layer 5 includes two types of openings and no opening, the circulation micropores 8 can be opened on the photothermal conversion layer 5, and the circulation micropores 8 can be circular and uniformly opened on the photothermal conversion layer 5 for facilitating the circulation of air.

The heat preservation layer 6 is arranged below the light receiving layer 3, and the heat preservation layer 6 is used for preventing the dissipation of air heat when the temperature difference is large and preserving heat of air.

The photothermal conversion layer 5 is provided with a strip-shaped intermediate hole 7, the intermediate hole 7 is formed along the direction of the intermediate corrugation 2, and the intermediate corrugation 2 is positioned in the center of the intermediate hole 7. The ratio of the connection area between the intermediate holes 7 to the area of the intermediate holes 7 in the extending direction of the intermediate holes 7 is between (0.1-9): 1-9) to prevent the photothermal conversion layer 5 from transferring too much heat to the intermediate corrugations 2; and a proper non-opening area is reserved, so that the photothermal conversion layer 5 can be stably supported on the middle corrugation 2, and the photothermal transfer and heat conduction are facilitated. The photothermal conversion layer 5 divides the plastic main body 1 into an upper layer and a lower layer to form a circulation cavity 4, and the circulation cavity 4 is used for a heat-conducting medium to pass through.

The plastic main body 1, the middle corrugation 2 and the light-heat conversion layer 5 are integrally produced by injection molding, blow molding, extrusion molding and other modes, the production cost is low, and continuous production can be carried out; furthermore, the corrugated structure in the plastic body 1 has impact resistance and durability, and contributes to improvement of the overall structural strength. The utility model provides a plastic body 1 compares in the heat energy acquisition device of current glass material has bigger application scope, the appearance structure of building of can laminating, the space resource that occupies when reducing the cost of using and using this device, simultaneously, multiplicable energy absorption's area after the device turn sets up.

Example 1:

the middle corrugated layer 2 which is transparent in the front and the back is vertically arranged in the plastic main body 1, the top end face of the plastic main body 1 is provided with the light receiving layer 3, the heat preservation layer 6 is arranged below the top end face of the plastic main body 1, and the heat preservation layer 6 is used for preventing the dissipation of air heat when the temperature difference is large and preserving heat of air. The middle part of the plastic main body 1 is provided with a light-heat conversion layer 5 parallel to the heat preservation layer 6, the light-heat conversion layer 5 is provided with a strip-shaped middle hole 7, the middle hole 7 is arranged along the direction of the middle corrugation 2, and the middle corrugation 2 is positioned in the center of the middle hole 7. The photothermal conversion layer 5 divides the plastic main body 1 into an upper layer and a lower layer to form two layers of circulation cavities 4, and the circulation cavities 4 are used for heat-conducting media to pass through; and the photothermal conversion layer 5 is uniformly provided with a plurality of circulation micropores 8, and the circulation micropores 8 are circular and are used for facilitating the circulation of air.

This embodiment is fit for using in the great area of the difference in temperature, and after photic layer 3 accepted the sunshine radiation, light-to-heat conversion layer 5 converted solar radiation into the heat, and the heat transfer gives the air in circulation chamber 4, and the air once heated can flow in circulation chamber 4, utilizes the ascending buoyancy of hot-air timely with the heat along with the air transport go out or through the fan with the hot-air forced transport go out, then, new air in time passes through circulation micropore 8, circulation chamber 4 supplements into. The heat insulation layer 6 outside the circulation cavity 4 prevents heat dissipation so as to realize the full utilization of heat.

Example 2:

the middle corrugated layer 2 which is transparent in the front and the back is vertically arranged in the plastic main body 1, the top end face of the plastic main body 1 is provided with the light receiving layer 3, the heat preservation layer 6 is arranged below the top end face of the plastic main body 1, and the heat preservation layer 6 is used for preventing the dissipation of air heat when the temperature difference is large and preserving heat of air. A photothermal conversion layer 5 parallel to the heat preservation layer 6 is arranged in the middle of the plastic main body 1, a strip-shaped middle hole 7 is arranged on the photothermal conversion layer 5, the middle hole 7 is formed along the direction of the middle corrugation 2, and the middle corrugation 2 is positioned in the center of the middle hole 7; the photothermal conversion layer 5 divides the plastic main body 1 into an upper layer and a lower layer to form two layers of circulation cavities 4, and the circulation cavities 4 are used for heat-conducting media to pass through.

This embodiment is fit for using in the great area of the difference in temperature, and after photic layer 3 accepted the sunshine radiation, light-to-heat conversion layer 5 converted solar radiation into the heat, and the heat transfer gives the air in circulation chamber 4, and the air once heated can flow in circulation chamber 4, utilizes the ascending buoyancy of hot-air timely with the heat along with the air transport go out or through the fan with the hot-air forced transport away, then, new air in time supplements into through circulation chamber 4. The heat insulation layer 6 outside the circulation cavity 4 prevents heat dissipation so as to realize the full utilization of heat.

Example 3:

the plastic main body 1 is vertically provided with a front-back through middle corrugation 2, the top end surface of the plastic main body 1 is provided with a light receiving layer 3, the middle part of the plastic main body 1 is provided with a light-heat conversion layer 5 parallel to the light receiving layer 3, the light-heat conversion layer 5 is provided with a strip-shaped middle hole 7, the middle hole 7 is arranged along the middle corrugation 2, and the middle corrugation 2 is positioned in the center of the middle hole 7. The photothermal conversion layer 5 divides the plastic main body 1 into an upper layer and a lower layer to form two layers of circulation cavities 4, and the circulation cavities 4 are used for heat-conducting media to pass through.

This embodiment is fit for using in the less area of difference in temperature, and the photic layer 3 accepts the sunshine radiation after, and light-to-heat conversion layer 5 converts solar radiation into the heat, and the heat transfer is for the air in circulation chamber 4, and the air once heated can flow in circulation chamber 4, utilizes the ascending buoyancy of hot-air timely with the heat along with the air transport go out or through the fan with the hot-air forced transport go out, then, new air in time supplements into through circulation chamber 4.

Claims

1. The utility model provides a solar energy low temperature heat energy acquisition device which characterized in that: the light-transmitting plastic composite board comprises a plastic main body (1) which is cuboid and has good light transmission, wherein a middle corrugation (2) which is through from front to back and used for supporting the plastic main body (1) is vertically arranged in the plastic main body (1); a light receiving layer (3) is arranged on the top end face of the plastic main body (1), and a light-heat conversion layer (5) which is parallel to the light receiving layer (3) and is used for converting solar radiation energy into heat is arranged in the middle of the plastic main body (1); the photothermal conversion layer (5) divides the plastic main body (1) into an upper layer and a lower layer, and is used for a circulation cavity (4) for a heat-conducting medium to pass through.

2. The solar low temperature thermal energy harvesting apparatus of claim 1, wherein: and a heat-insulating layer (6) for insulating air is arranged below the top end face of the plastic main body (1).

3. The solar low temperature thermal energy harvesting apparatus of claim 1, wherein: the photothermal conversion layer (5) is uniformly provided with a plurality of circulation micropores (8) for air circulation.

4. The solar low temperature thermal energy harvesting apparatus of claim 3, wherein: the circulation micropores (8) are circular holes.