CN216347120U

CN216347120U - Assembled solar photo-thermal power generation solid particle heat absorber

Info

Publication number: CN216347120U
Application number: CN202122792816.0U
Authority: CN
Inventors: 司继松; 代春雷; 赵国明; 郑烨; 张学博; 魏治
Original assignee: Bluestar Beijing Chemical Machinery Co Ltd
Current assignee: Bluestar Beijing Chemical Machinery Co Ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-19
Anticipated expiration: 2031-11-15

Abstract

Assembled solar photothermal power solid particle heat absorber, including heat absorption section of thick bamboo subassembly, heat absorption section of thick bamboo subassembly includes a plurality of heat absorption section of thick bamboo of establishing ties along vertical direction, the top of heat absorption section of thick bamboo subassembly is equipped with the feed inlet, the bottom of heat absorption section of thick bamboo subassembly is equipped with the discharge gate, be equipped with the light guide mouth on the lateral wall of every heat absorption section of thick bamboo respectively, light guide mouth department cartridge has the light guide pipe, the middle part of the directional heat absorption section of thick bamboo inner chamber of light guide pipe of inner end opening of light guide pipe, the position department relative with the light guide pipe inner end opening in every heat absorption section of thick bamboo is equipped with the guide swash plate that is used for guiding the gliding of heat absorption granule respectively, the guide swash plate that is located the top can be carried the heat absorption granule guide to the face that is located the inclined plane upper portion of this guide swash plate below rather than another adjacent guide swash plate. The assembled solar photo-thermal power generation solid particle heat absorber can avoid the temperature of the inner wall of the heat absorbing cylinder opposite to the light guide port from being ultrahigh, and reduces the abrasion of solid particles to the conical bottom of the heat absorbing cylinder.

Description

Assembled solar photo-thermal power generation solid particle heat absorber

Technical Field

The utility model relates to the field of solar photo-thermal power generation, in particular to an assembled solar photo-thermal power generation solid particle heat absorber.

Background

One challenge in using renewable energy sources, particularly solar energy, is to deal with the intermittent nature of the energy supply caused by weather, diurnal solar fluctuations, and seasonal variations, and one way to effectively manage the variability of solar energy resources is to add thermal energy storage devices to them, store the varying energy when there is excess power, and then release the stored energy when the solar energy is producing insufficient or no power, thereby achieving the need for a continuous power supply.

The fourth generation solar thermal power generation technology takes high-temperature solid particles as a heat transfer working medium, and compared with a molten salt medium generally adopted by the current commercial photo-thermal power station, the high-temperature solid particles can bear higher temperature, are very low in cost and cannot threaten the environment. More importantly, unlike molten salts, high temperature particles do not risk freezing of the fluid, and therefore do not require any auxiliary heating measures, which is of great advantage. However, in the operation process of the solar photo-thermal power generation solid particle heat absorber used in the existing fourth-generation solar thermal power generation technology, the problem of transportation caused by overlong monomer length of the equipment is found. The solid particles have short residence time in the heat absorber, and the heat absorption effect is also influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an assembled solar photo-thermal power generation solid particle heat absorber which is convenient to transport and assemble, good in heat absorption effect, small in heat loss and long in service life.

The assembled solar photo-thermal power generation solid particle heat absorber comprises a heat absorption barrel assembly, wherein the heat absorption barrel assembly comprises a plurality of heat absorption barrels which are connected in series in the vertical direction, a feed inlet is formed in the top end of the heat absorption barrel assembly, a discharge outlet is formed in the bottom end of the heat absorption barrel assembly, a light guide port is formed in the side wall of each heat absorption barrel respectively, a light guide pipe is inserted into the light guide port, an opening at the inner end of the light guide pipe points to the middle of an inner cavity of the heat absorption barrel, a material guide inclined plate for guiding heat absorption particles to slide downwards is arranged in each heat absorption barrel at a position opposite to the opening at the inner end of the light guide pipe, and the material guide inclined plate positioned above can guide and convey the heat absorption particles to a plate surface positioned below the material guide inclined plate and on the upper part of an inclined plane of another material guide inclined plate adjacent to the material guide inclined plate;

the lower part of the heat absorbing cylinder assembly is provided with a conical hopper with a downward conical angle.

The light emitted into each heat absorbing cylinder along the light guide pipe can irradiate the upper inclined plane of the corresponding material guide inclined plate, and heat absorbing particles can flow through the upper inclined plane of each material guide inclined plate one by one from top to bottom under the action of gravity after entering the heat absorbing cylinder assembly from the feeding hole and then flow out from the discharging hole.

Preferably, a temperature measuring device for measuring the temperature of the heat absorbing particles is arranged in the heat absorbing barrel assembly.

Preferably, the inner walls of the heat absorbing cylinder and the conical hopper are sequentially provided with a high-temperature-resistant ceramic plate and a heat insulating layer from inside to outside.

Preferably, the outer wall of the heat absorbing cylinder is made of high-temperature-resistant stainless steel, and the thickness of the outer wall of the heat absorbing cylinder is 2 mm-10 mm.

Preferably, the light guide pipes are arranged outwards and downwards in a downward inclination mode, the included angle between the center line of each light guide pipe and the vertical direction is 30-60 degrees, and the plate surface of each material guide inclined plate is parallel to the center line of the corresponding light guide pipe or forms an intersection angle within +/-10 degrees.

Preferably, the cone angle of the conical hopper is between 30 ° and 50 °.

Preferably, the number of the heat absorbing cylinders is 4-10, the cross section of each heat absorbing cylinder along the horizontal direction is rectangular, and the heat absorbing cylinders which are adjacent up and down are connected with each other through flanges.

The assembled solar photo-thermal power generation solid particle heat absorber comprises a heat absorbing barrel assembly, a plurality of heat absorbing barrels, a plurality of guide inclined plates and a plurality of guide inclined plates, wherein the heat absorbing barrel assembly comprises a plurality of heat absorbing barrels which are connected in series in the vertical direction; the lower part of the heat absorbing cylinder assembly is provided with a conical hopper with a downward conical angle, and the inner wall of the conical hopper is provided with a material storage grid. When the heat absorption device is used, light emitted into each heat absorption cylinder along the light guide pipe can irradiate the upper inclined plane of the corresponding material guide inclined plate, heat absorption particles can flow through the upper inclined plane of each material guide inclined plate one by one from top to bottom under the action of gravity after entering the heat absorption cylinder assembly from the feeding hole, and then flow out from the discharging hole. Therefore, the assembled solar photo-thermal power generation solid particle heat absorber has the characteristics of convenience in transportation and assembly, good heat absorption effect, small heat loss and long service life.

The utility model is described in detail below with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a front view of a schematic structural diagram of an assembled solar photo-thermal power generation solid particle heat absorber of the utility model;

fig. 2 is a partial cross-sectional view of the conical hopper section of fig. 1.

Detailed Description

As shown in fig. 1 and 2, the assembled solar photo-thermal power generation solid particle heat absorber of the utility model comprises a heat absorption barrel assembly, the heat absorption barrel assembly comprises a plurality of heat absorption barrels 1 connected in series in the vertical direction, a feed inlet 2 is arranged at the top end of the heat absorption barrel assembly, a discharge outlet 3 is arranged at the bottom end of the heat absorption barrel assembly, a light guide port is respectively arranged on the side wall of each heat absorption barrel 1, a light guide pipe 8 is inserted at the light guide port, an inner end opening of the light guide pipe 8 points to the middle part of an inner cavity of the heat absorption barrel 1, a guide inclined plate 5 for guiding heat absorption particles to slide downwards is respectively arranged in each heat absorption barrel 1 at a position opposite to the inner end opening of the light guide pipe 8, and the guide inclined plate 5 positioned above can guide and convey the heat absorption particles to a plate surface positioned below the guide inclined plate 5 and above an inclined plane of another guide inclined plate 5 adjacent to the guide inclined plate 5; the lower part of the heat absorbing cylinder component is provided with a conical hopper 9 with a downward conical angle.

The design of the heat absorbing cylinders 1 which are connected in series in the vertical direction facilitates transportation and assembly, the material storage grid can enable the interior of the conical hopper 9 to form a dead material area, abrasion of the inner side of the conical hopper 9 is effectively prevented, the material guide inclined plate 5 can prolong the retention time of solid particles in the heat absorber as far as possible, and the heat absorbing effect is guaranteed.

The light emitted into each heat absorbing cylinder 1 along the light guide pipe 8 irradiates the upper inclined plane of the corresponding material guide inclined plate 5, and the heat absorbing particles enter the heat absorbing cylinder assembly from the feeding hole 2, flow through the upper inclined plane of each material guide inclined plate 5 one by one from top to bottom under the action of gravity and then flow out from the discharging hole 3.

As a further improvement of the utility model, a temperature measuring device for measuring the temperature of the heat absorbing particles is arranged in the heat absorbing cylinder assembly.

As a further improvement of the utility model, the inner walls of the heat absorbing cylinder 1 and the conical hopper 9 are provided with a high-temperature-resistant ceramic plate 7 and an insulating layer 6 from inside to outside in sequence.

Above-mentioned heat preservation can adopt composite insulation material, and composite insulation material comprises aerogel and silicate felt, and the heat preservation can be the reservation air cavity space, guarantees this heat absorber thermal expansion free extension and cooling shrinkage from this, and the high temperature resistant ceramic plate 7 of inside laying can play temperature resistant and wear-resisting effect.

As a further improvement of the utility model, the outer wall of the heat absorbing cylinder 1 is made of high-temperature resistant stainless steel, and the thickness of the outer wall of the heat absorbing cylinder 1 is 2 mm-10 mm.

As a further improvement of the utility model, the light guide pipes 8 are arranged in an outward and downward inclined manner, the included angle between the center line of the light guide pipe 8 and the vertical direction is 30-60 degrees, and the plate surface of the material guide inclined plate 5 is parallel to the center line of the corresponding light guide pipe 8 or forms an intersection angle within +/-10 degrees.

As a further development of the utility model, the cone angle of the cone-shaped scoop 9 is 30 ° to 50 °.

As a further improvement of the utility model, the number of the heat absorbing cylinders 1 is 4-10, and the heat absorbing cylinders 1 which are adjacent up and down are connected with each other through flanges.

When the assembled solar photo-thermal power generation solid particle heat absorber is used, light emitted into each heat absorbing cylinder along the light guide pipe can irradiate the upper inclined plane of the corresponding material guide inclined plate, heat absorbing particles enter the heat absorbing cylinder assembly from the feeding hole, flow through the upper inclined plane of each material guide inclined plate one by one from top to bottom under the action of gravity, and then flow out from the discharging hole. Therefore, the assembled solar photo-thermal power generation solid particle heat absorber has the characteristics of convenience in transportation and assembly, good heat absorption effect, small heat loss and long service life.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. Assembled solar photothermal power solid particle heat absorber, characterized by: the heat absorption device comprises a heat absorption barrel assembly, wherein the heat absorption barrel assembly comprises a plurality of heat absorption barrels (1) which are connected in series in the vertical direction, a feeding hole (2) is formed in the top end of the heat absorption barrel assembly, a discharging hole (3) is formed in the bottom end of the heat absorption barrel assembly, a light guide hole is formed in the side wall of each heat absorption barrel (1) respectively, a light guide pipe (8) is inserted into the light guide hole, an inner end opening of the light guide pipe (8) points to the middle of an inner cavity of the heat absorption barrel (1), a material guide inclined plate (5) used for guiding heat absorption particles to slide downwards is arranged in each heat absorption barrel (1) at a position opposite to the inner end opening of the light guide pipe (8), and the material guide inclined plate (5) positioned above can guide and convey the heat absorption particles to a plate surface positioned below the material guide inclined plate (5) and on the upper part of an inclined plane of another material guide inclined plate (5) adjacent to the material guide inclined plate (5);

the lower part of the heat absorbing cylinder assembly is provided with a conical hopper (9) with a downward conical angle.

2. The assembled solar photo-thermal power generation solid particle heat absorber of claim 1, wherein: and a temperature measuring device for measuring the temperature of heat absorbing particles is arranged in the heat absorbing cylinder assembly.

3. The assembled solar photo-thermal power generation solid particle heat absorber of claim 2, wherein: and the inner walls of the heat absorbing cylinder (1) and the conical hopper (9) are sequentially provided with a high-temperature-resistant ceramic plate (7) and a heat insulating layer (6) from inside to outside.

4. The assembled solar photo-thermal power generation solid particle heat absorber of claim 3, wherein: the outer wall of the heat absorbing cylinder (1) is made of high-temperature-resistant stainless steel, and the thickness of the outer wall of the heat absorbing cylinder (1) is 2 mm-10 mm.

5. The assembled solar photo-thermal power generation solid particle heat absorber of any one of claims 1 to 4, wherein: the light guide pipes (8) are arranged outwards and downwards in a downward inclined mode, the included angle between the center line of each light guide pipe (8) and the vertical direction is 30-60 degrees, and the plate surface of each material guide inclined plate (5) is parallel to the center line of the corresponding light guide pipe (8) or forms an intersection angle within +/-10 degrees.

6. The assembled solar photo-thermal power generation solid particle heat absorber of claim 5, wherein: the cone angle of the conical hopper (9) is 30-50 degrees.

7. The assembled solar photo-thermal power generation solid particle heat absorber of claim 6, wherein: the number of the heat absorbing cylinders (1) is 4-10, the cross section of each heat absorbing cylinder (1) along the horizontal direction is rectangular, and the heat absorbing cylinders (1) which are adjacent up and down are connected with each other through flanges.