CN219120788U

CN219120788U - Flat-plate solar heat absorber

Info

Publication number: CN219120788U
Application number: CN202223189248.6U
Authority: CN
Inventors: 张祖权; 张炜
Original assignee: Jiangsu Hangda Photoelectric New Energy Co ltd
Current assignee: Jiangsu Hangda Photoelectric New Energy Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-06-02
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a flat-plate solar heat absorber, which comprises a heat absorber plate core, a heat absorber plate and a heat conducting medium, wherein the heat absorber plate core absorbs solar radiation to be converted into heat energy and is transferred to the heat conducting medium; the heat absorbing plate core consists of a heat absorbing plate and heat absorbing pipes arranged on the heat absorbing plate, wherein a plurality of turbulence pieces are arranged in the heat absorbing pipes along the length of the heat absorbing pipes, and when the heat conducting medium is guided in the heat absorbing pipes, the turbulence pieces are provided with driving forces for executing turbulence actions, and the heat conducting medium is disturbed by the turbulence pieces. According to the flat-plate solar heat absorber provided by the utility model, the turbulence piece is arranged in the heat absorbing calandria to turbulence the heat conducting medium, so that the uniformity of heat mixing of the heat conducting medium is improved.

Description

Flat-plate solar heat absorber

Technical Field

The utility model belongs to the technical field of parts of flat-plate solar collectors, and particularly relates to a flat-plate solar heat absorber.

Background

The absorber plate core is an important absorber component of a flat-panel solar collector. The existing heat absorption plate core is generally formed by arranging heat absorption tube bundles on a plate body, the heat absorption tube bundles absorb radiation and convert the radiation into heat energy to transfer the heat energy to a heat conduction medium in the heat absorption tube bundles for guiding the flow, and the heat conduction medium is not well-defined in the tube bundles, so that the condition of uneven temperature distribution of upper heat and lower cool heat is easy to occur.

Disclosure of Invention

The utility model aims to: in order to overcome the defects in the prior art, the utility model provides the flat-plate solar heat absorber, and the heat conducting medium is disturbed by arranging the turbulence piece in the heat absorbing calandria, so that the uniformity of heat mixing of the heat conducting medium is improved.

The technical scheme is as follows: in order to achieve the above object, a flat-panel solar heat absorber of the present utility model includes a heat absorber plate core for absorbing solar radiation to convert the solar radiation into heat energy and transferring the heat energy to a heat conducting medium; the heat absorption plate core consists of a heat absorption plate and heat absorption calandria arranged on the heat absorption plate, wherein a plurality of turbulence pieces are arranged in the heat absorption calandria along the length laying track of the heat absorption calandria, and when the heat conduction medium is guided in the heat absorption calandria, the heat conduction medium provides driving force for the turbulence pieces to execute turbulence action, and the heat conduction medium is disturbed by the turbulence pieces.

Further, the heat absorbing calandria is embedded on the heat absorbing plate, so that an integrated structure capable of mutually transferring heat is formed between the heat absorbing calandria and the heat absorbing plate.

Further, one side of the heat absorbing plate core receiving solar radiation is a radiation light-receiving surface, and the other side opposite to the radiation light-receiving surface is a backlight surface; in the heat absorbing calandria, the tube body part at the radiation light-receiving surface is larger than the tube body part at the backlight surface.

Further, the heat absorbing calandria is arranged on the heat absorbing plate in a serpentine track, and the turbulence piece is positioned in a tube body of the heat absorbing calandria in a linear calandria track.

Further, the turbulence piece is a rotary turbulence piece formed by a rotating shaft and turbulence blades; the turbulence blades are driven by the heat conducting medium in a flowing state, and the heat conducting medium is reversely pushed to achieve turbulence.

Further, the heat absorbing calandria comprises a pipe body and a pipe cover, and the turbulence piece is positioned on the pipe cover; the pipe cover covers and seals the pipe body to form the heat absorption calandria, so that the turbulence piece is arranged in the heat absorption calandria.

The beneficial effects are that: the flat-plate solar heat absorber has the beneficial effects that: through setting up the vortex piece and carrying out the vortex to the heat conduction medium in the heat absorption calandria, at the in-process to the heat conduction medium vortex, can make the heat conduction medium of each layer heat uneven distribution mix evenly distributed to improve the homogeneity of heat conduction medium heat mixing, be convenient for carry out heat transfer to the heat conduction medium.

Drawings

FIG. 1 is a schematic diagram of a heat absorbing plate core structure;

FIG. 2 is a schematic exploded view of the absorber plate core;

fig. 3 is a schematic view of a heat absorbing plate core applied to a flat-panel solar collector.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

In the prior art, the heat absorbing plate core is generally formed by arranging heat absorbing tube bundles on a plate body, the heat absorbing tube bundles absorb radiation and convert the radiation into heat energy to transfer the heat energy to a heat conducting medium in which the heat energy is guided, and the heat conducting medium is not well-defined in the tube bundles, so that the condition of uneven temperature distribution of upper heat and lower cool heat is easy to occur.

In order to solve the above problems, in the present utility model, as shown in fig. 1, a flat solar heat absorber includes a heat absorbing plate core 1 for absorbing solar radiation to be converted into heat energy to be transferred to a heat conducting medium; the heat absorbing plate core 1 is composed of a heat absorbing plate 2 and heat absorbing calandria 3 arranged on the heat absorbing plate 2, a plurality of turbulence pieces 4 are arranged in the heat absorbing calandria 3 along the length laying track of the heat absorbing calandria 3, when the heat conducting medium is guided in the heat absorbing calandria 3, the heat conducting medium is provided for the turbulence pieces 4 to execute the driving force of the turbulence action, and the heat conducting medium is disturbed by the turbulence pieces 4. Through setting up vortex piece 4 in heat absorption calandria 3 and carrying out the vortex to the heat conduction medium, at the in-process to the heat conduction medium vortex, can make the heat conduction medium that each layer temperature heat distribution is uneven mix evenly distributed to improve the homogeneity of heat conduction medium heat mixing, be convenient for carry out heat transfer to the heat conduction medium.

As shown in fig. 1 and fig. 2, the heat absorbing pipe 3 is embedded in the heat absorbing plate 2, so that an integrated structure capable of mutually transferring heat is formed between the heat absorbing pipe 3 and the heat absorbing plate 2, in this way, both the heat absorbing plate 2 and the heat absorbing pipe 3 can be used as heat absorbing components to absorb heat, and the heat absorbed by the heat absorbing plate 2 can be transferred to the heat absorbing pipe 3, thereby improving the heat exchange efficiency of the heat conducting medium in the pipe.

As shown in fig. 3, in the heat absorbing plate core 1, a side of the heat absorbing plate core 1 receiving solar radiation is a radiation light-receiving surface 10, and the other side opposite to the radiation light-receiving surface is a backlight surface 11; in the heat absorbing pipe 3, the pipe body part at the radiation light-receiving surface 10 is larger than the pipe body part at the backlight surface 11, so that the heat absorbing pipe 3 can receive more solar radiation and convert more heat energy into heat conducting medium.

In order to further enable the heat absorbing calandria 3 to receive more solar radiation, the heat absorbing calandria 3 is arranged on the heat absorbing plate 2 in a serpentine track, so that the arrangement length is increased; in the heat absorption calandria 3, the flow guiding resistance of the straight line pipe body part is small, the flow guiding resistance of the bent pipe body part is large, and in order to reduce the flow guiding obstruction influence of the flow guiding medium in the whole heat absorption calandria 3 by the flow disturbing piece 4, the flow disturbing piece 4 is positioned in the pipe body of the heat absorption calandria 3 in a straight line calandria track.

As shown in fig. 2, the spoiler 4 is a rotary spoiler formed by a rotating shaft 5 and a spoiler blade 6; the turbulent flow blades 6 are driven by the heat conducting medium in a flowing state, the heat conducting medium is reversely pushed to realize turbulent flow, the turbulent flow piece 4 does not need to be additionally provided with a driving part, and the driving force source is the heat conducting medium in the flowing state, so that the energy is saved and the emission is reduced. More specifically, the heat absorbing calandria 3 includes a tube body 7 and a tube cover 8, and the spoiler 4 is located on the tube cover 8; the pipe cover 8 covers and seals the pipe body 7 to form the heat absorbing pipe 3, so that the spoiler 4 is arranged in the heat absorbing pipe 3. The pipe cover 8 and the pipe body 7 are welded and sealed, and as lines can appear at the welding seam, the pipe cover 8 is positioned at the position of the backlight surface 11 in order to avoid the influence of the lines on heat absorption. The pivot 5 normal running fit sets up on tube cap 8, and vortex leaf 6 circumference array arranges on pivot 5, and the quantity of vortex leaf 6 should not be too much to avoid causing too much hindrance to the water conservancy diversion of heat conduction medium, generally three effects can be better.

The foregoing is only a preferred embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims

1. The utility model provides a dull and stereotyped solar heat absorber which characterized in that: comprising a heat absorber plate core (1) for absorbing solar radiation and converting it into heat energy for transfer to a heat conducting medium; the heat absorption plate core (1) is composed of a heat absorption plate (2) and heat absorption calandria (3) arranged on the heat absorption plate (2), a plurality of turbulence pieces (4) are arranged in the heat absorption calandria (3) along the length laying track of the heat absorption calandria, and a heat conduction medium is provided for the turbulence pieces (4) to execute the driving force of the turbulence action when the heat absorption calandria (3) is used for guiding flow, and the heat conduction medium is disturbed by the turbulence pieces (4).

2. A flat panel solar heat absorber according to claim 1, wherein: the heat absorbing calandria (3) is embedded on the heat absorbing plate (2), so that an integrated structure capable of mutually transferring heat is formed between the heat absorbing calandria (3) and the heat absorbing plate (2).

3. A flat panel solar heat absorber according to claim 2, wherein: one side of the heat absorbing plate core (1) receiving solar radiation is a radiation light-receiving surface (10), and the other side opposite to the radiation light-receiving surface is a backlight surface (11); in the heat absorbing gauntlet (3), the tube body part at the radiation light-receiving surface (10) is larger than the tube body part at the backlight surface (11).

4. A flat panel solar heat absorber according to claim 1, wherein: the heat absorbing calandria (3) is arranged on the heat absorbing plate (2) in a serpentine track, and the turbulence piece (4) is positioned in a tube body of the heat absorbing calandria (3) in a linear calandria track.

5. A flat panel solar heat absorber according to claim 1 or 4, wherein: the turbulence piece (4) is a rotary turbulence piece formed by a rotating shaft (5) and turbulence blades (6); the turbulence blades (6) are driven by the heat conducting medium in a flowing state to reversely push the heat conducting medium to achieve turbulence.

6. The flat panel solar heat absorber of claim 5 wherein: the heat absorption calandria (3) comprises a pipe body (7) and a pipe cover (8), and the turbulence piece (4) is positioned on the pipe cover (8); the pipe cover (8) is used for sealing the pipe body (7) in a covering way to form the heat absorption pipe (3) so as to place the turbulence piece (4) in the heat absorption pipe (3).