Heat preservation structure assembly of heat absorber

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By adopting a connecting structure of multiple insulation blocks in the heat absorber and forming a sealing structure with grooves and sealing cover plates, the heat loss and temperature instability of the heat absorber in high temperature environment are solved, and the effective and stable operation of the heat absorber and the prevention of plugging pipes are achieved.

CN119532988APending Publication Date: 2025-02-28BLUESTAR BEIJING CHEM MACHINERY

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Patent Information

Application Number: CN202311095193.9
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2023-08-29
Publication Date: 2025-02-28

AI Technical Summary

Technical Problem

The heat absorber has heat loss and temperature instability in high temperature environments, which causes molten salt in the tube screen to solidify and block the tube, causing serious adverse effects.

Method used

A plurality of insulation blocks connected to the end are connected for connection. By setting the top end, the bottom end and the vertical grooves, and a sealing cover plate is provided in each groove to form a sealing structure to reduce heat loss.

Benefits of technology

It effectively improves the insulation performance of the heat absorber, maintains the stability of the temperature, reduces heat loss, and avoids the harm of the pipe screen blocking the pipe.

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Abstract

The heat absorber heat preservation structure assembly comprises a plurality of heat preservation blocks which are connected end to end, and every two adjacent heat preservation blocks are connected in the following mode that the left side and the right side of the top end of a first heat preservation block (1) of every two adjacent heat preservation blocks are each provided with a first heat preservation block top end open groove (3) in the horizontal direction of the first heat preservation block (1); the left side and the right side of the top end of the second heat preservation block (2) of every two adjacent heat preservation blocks are each provided with a second heat preservation block top end open groove (5) along the side edge of the second heat preservation block (2), and a top end groove (10) is formed by the first heat preservation block top end open groove (3) and the second heat preservation block top end open groove (5) which are adjacent. The heat absorber heat preservation structure assembly is good in heat preservation performance, enables the temperature of a heat absorber to be stable, prevents the heat absorber from generating large heat loss, guarantees effective and stable operation of heat absorber equipment, and prevents the heat absorber from being blocked.

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Description

Technical Field

[0001] The present invention relates to the field of solar thermal power generation, and in particular to a heat absorber insulation structure component in the technical field of molten salt heat storage and heating. Background Art

[0002] The absorber is the core equipment in the solar thermal power generation system. The absorber includes an absorber and a transparent cover layer. According to the different heat transfer methods, the absorber can be divided into an external tube absorber and a volume cavity absorber. In the external tube absorber, the heating surface is arranged in a ring shape, so that the tube panel forms a cylinder, which can receive sunlight reflected and concentrated by the heliostats within a 360° range around the tower. Since the absorber bears the important role of absorbing solar energy, its operating temperature is high and it needs to withstand huge temperature changes. Therefore, ensuring small heat loss and stable temperature has always been a difficulty in the insulation design of the absorber. Among them, air leakage in the insulation connection between the absorber tube panels will seriously affect the temperature of the molten salt in the tube panel. If the molten salt in the tube panel solidifies and blocks the tube due to poor insulation, it will cause serious adverse effects. The absorber insulation structure assembly of the present invention can effectively solve this problem. Summary of the invention

[0003] The purpose of the present invention is to provide a heat absorber insulation structure component with good thermal insulation performance, which can stabilize the temperature of the heat absorber and avoid large heat loss of the heat absorber, thereby ensuring the effective and stable operation of the heat absorber equipment and avoiding the hazard of pipe blockage in the heat absorber.

[0004] The heat absorber insulation structure assembly of the present invention comprises a plurality of insulation blocks connected end to end, wherein two adjacent insulation blocks are connected in the following manner:

[0005] The left and right sides of the top of the first insulation block of the two adjacent insulation blocks are respectively provided with a first insulation block top groove along the horizontal direction of the first insulation block, and the left and right sides of the top of the second insulation block of the two adjacent insulation blocks are respectively provided with a second insulation block top groove along the side of the second insulation block, and the adjacent first insulation block top groove and the second insulation block top groove form a top groove;

[0006] The left and right sides of the bottom end of the first insulation block are respectively provided with first insulation block bottom end grooves along the horizontal direction of the first insulation block, and the left and right sides of the bottom end of the second insulation block are respectively provided with second insulation block bottom end grooves along the side of the second insulation block; the adjacent first insulation block bottom end grooves and the second insulation block bottom end grooves form a bottom end groove;

[0007] The left and right sides of the front end of the first insulation block are respectively provided with first insulation block vertical grooves along the vertical direction of the first insulation block, and the left and right sides of the front end of the second insulation block are respectively provided with second insulation block vertical grooves along the vertical direction of the second insulation block, and the adjacent first insulation block vertical grooves and second insulation block vertical grooves form a vertical groove;

[0008] The top of each vertical groove is respectively communicated with the front end of the top groove located above it, and the bottom end of each vertical groove is respectively communicated with the front end of the bottom groove located below it, and each vertical groove is respectively provided with a vertical sealing cover plate, each top groove is respectively provided with a top sealing cover plate, and each bottom groove is respectively provided with a bottom sealing cover plate.

[0009] Preferably, the top end of each vertical sealing cover plate is fixedly connected to the front end of the top sealing cover plate located above it, and the bottom end of each vertical sealing cover plate is fixedly connected to the front end of the bottom sealing cover plate located below it.

[0010] Preferably, the first insulation block and the second insulation block are fixedly connected to the steel frame of the heat absorber by fasteners respectively, and the surface of the steel frame is provided with a high-temperature resistant insulation coating.

[0011] Preferably, the thickness of the first insulation block along the front-to-back horizontal direction is 100mm-500mm, the thickness of the second insulation block along the front-to-back horizontal direction is 100mm-500mm, the width of the vertical groove is 50mm-100mm, the width of the top groove is 50mm-100mm, and the width of the bottom groove is 50mm-100mm.

[0012] Preferably, the angle between the rearward end surface of the adjacent first thermal insulation block and the rearward end surface of the second thermal insulation block is 110°-175°.

[0013] Preferably, the vertical sealing cover plate, the top sealing cover plate and the bottom sealing cover plate are made of heat-insulating material.

[0014] Preferably, the cross-sections of the first heat-insulating block and the second heat-insulating block along the horizontal direction are respectively isosceles trapezoids or sectors with a wide front end and a narrow rear end.

[0015] The heat absorber insulation structure component of the present invention has a first insulation block top groove provided on the left and right sides of the top of the first insulation block of two adjacent insulation blocks along the horizontal direction of the first insulation block, and a second insulation block top groove provided on the left and right sides of the top of the second insulation block of the two adjacent insulation blocks along the side of the second insulation block, and the adjacent first insulation block top grooves and the second insulation block top grooves form a top groove; at the same time, the left and right sides of the bottom end of the first insulation block are respectively provided with the first insulation block bottom groove along the horizontal direction of the first insulation block, and the left and right sides of the bottom end of the second insulation block are respectively provided with the second insulation block bottom groove along the side of the second insulation block; the adjacent first insulation block bottom grooves and the second insulation block bottom grooves The grooves form a bottom groove; at the same time, the left and right sides of the front end of the first insulation block are respectively provided with first insulation block vertical grooves along the vertical direction of the first insulation block, and the left and right sides of the front end of the second insulation block are respectively provided with second insulation block vertical grooves along the vertical direction of the second insulation block, and the adjacent first insulation block vertical grooves and second insulation block vertical grooves form a vertical groove; at the same time, the top of each of the vertical grooves is respectively communicated with the front end of the top groove located above it, and the bottom of each vertical groove is respectively communicated with the front end of the bottom groove located below it, and each vertical groove is respectively provided with a vertical sealing cover plate, each top groove is respectively provided with a top sealing cover plate, and each bottom groove is respectively provided with a bottom sealing cover plate. Therefore, the heat absorber insulation structure assembly of the present invention has good insulation performance, stabilizes the temperature of the heat absorber, avoids large heat loss of the heat absorber, thereby ensuring the effective and stable operation of the heat absorber equipment and avoiding the danger of pipe blockage in the heat absorber.

[0016] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the first insulation block of the heat absorber insulation structure assembly of the present invention;

[0018] Figure 2 for Figure 1 A top view of

[0019] Figure 3 It is a front view of the second insulation block of the heat absorber insulation structure assembly of the present invention;

[0020] Figure 4 for Figure 3 A top view of

[0021] Figure 5 It is a front view of the first insulation block and the second insulation block of the heat absorber insulation structure assembly of the present invention spliced together;

[0022] Figure 6 for Figure 5A top view of

[0023] Figure 7 It is a front view of the heat absorber insulation structure assembly of the present invention;

[0024] Figure 8 for Figure 7 A top view of

[0025] Fig. 9 It is a structural schematic diagram of the heat absorber insulation structure assembly of the present invention in an installed and used state. DETAILED DESCRIPTION

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the heat absorber insulation structure assembly of the present invention comprises a plurality of insulation blocks connected end to end, wherein two adjacent insulation blocks are connected in the following manner:

[0027] The left and right sides of the top of the first insulation block 1 of the two adjacent insulation blocks are respectively provided with a first insulation block top groove 3 along the horizontal direction of the first insulation block 1, and the left and right sides of the top of the second insulation block 2 of the two adjacent insulation blocks are respectively provided with a second insulation block top groove 5 along the side of the second insulation block 2, and the adjacent first insulation block top groove 3 and the second insulation block top groove 5 form a top groove 10;

[0028] The left and right sides of the bottom end of the first insulation block 1 are respectively provided with first insulation block bottom end slots 4 along the horizontal direction of the first insulation block 1, and the left and right sides of the bottom end of the second insulation block 2 are respectively provided with second insulation block bottom end slots 6 along the side of the second insulation block 2; the adjacent first insulation block bottom end slots 4 and the second insulation block bottom end slots 6 form a bottom end groove 11;

[0029] The left and right sides of the front end of the first insulation block 1 are respectively provided with first insulation block vertical grooves 7 along the vertical direction of the first insulation block 1, and the left and right sides of the front end of the second insulation block 2 are respectively provided with second insulation block vertical grooves 8 along the vertical direction of the second insulation block 2, and the adjacent first insulation block vertical grooves 7 and second insulation block vertical grooves 8 form a vertical groove 12;

[0030] like Figure 7 and Figure 8As shown, the top of each vertical groove 12 is communicated with the front end of the top groove 10 located above it, and the bottom end of each vertical groove 12 is communicated with the front end of the bottom groove 11 located below it, and each vertical groove 12 is respectively provided with a vertical sealing cover plate 13, each top groove 10 is respectively provided with a top sealing cover plate 14, and each bottom groove 11 is respectively provided with a bottom sealing cover plate 15.

[0031] As a further improvement of the present invention, the top end of each of the vertical sealing cover plates 13 is fixedly connected to the front end of the top sealing cover plate 14 located above it, and the bottom end of each vertical sealing cover plate 13 is fixedly connected to the front end of the bottom sealing cover plate 15 located below it.

[0032] like Fig. 9 As shown, as a further improvement of the present invention, the first insulation block 1 and the second insulation block 2 are respectively fixedly connected to the steel frame 9 of the heat absorber by fasteners, and the surface of the steel frame 9 is provided with a high temperature resistant insulation coating.

[0033] As a further improvement of the present invention, the thickness of the first insulation block 1 along the front-to-back horizontal direction is 100mm-500mm, the thickness of the second insulation block 2 along the front-to-back horizontal direction is 100mm-500mm, the width of the vertical groove 12 is 50mm-100mm, the width of the top groove 10 is 50mm-100mm, and the width of the bottom groove 11 is 50mm-100mm.

[0034] As a further improvement of the present invention, the angle between the rearward end surface of the adjacent first thermal insulation block 1 and the rearward end surface of the second thermal insulation block 2 is 110°-175°.

[0035] As a further improvement of the present invention, the vertical sealing cover plate 13, the top sealing cover plate 14 and the bottom sealing cover plate 15 are made of heat-insulating materials.

[0036] As a further improvement of the present invention, the cross-sections of the first heat-insulating block 1 and the second heat-insulating block 2 along the horizontal direction are respectively isosceles trapezoids or sectors with a wide front end and a narrow rear end.

[0037] The heat absorption device insulation structure component of the present invention has a first insulation block top groove 3 provided on the left and right sides of the top of the first insulation block 1 of two adjacent insulation blocks along the horizontal direction of the first insulation block 1, and a second insulation block top groove 5 provided on the left and right sides of the top of the second insulation block 2 of the two adjacent insulation blocks along the side of the second insulation block 2, and the adjacent first insulation block top groove 3 and the second insulation block top groove 5 form a top groove 10; at the same time, the left and right sides of the bottom end of the first insulation block 1 are respectively provided with a first insulation block bottom groove 4 along the horizontal direction of the first insulation block 1, and the left and right sides of the bottom end of the second insulation block 2 are respectively provided with a second insulation block bottom groove 6 along the side of the second insulation block 2; the adjacent first insulation block bottom groove 4 and the second insulation block bottom groove 6 form a bottom groove End groove 11; at the same time, the left and right sides of the front end of the first insulation block 1 are respectively provided with a first insulation block vertical groove 7 along the vertical direction of the first insulation block 1, and the left and right sides of the front end of the second insulation block 2 are respectively provided with a second insulation block vertical groove 8 along the vertical direction of the second insulation block 2, and the adjacent first insulation block vertical groove 7 and second insulation block vertical groove 8 constitute a vertical groove 12; at the same time, the top end of each of the vertical grooves 12 is respectively communicated with the front end of the top groove 10 located above it, and the bottom end of each vertical groove 12 is respectively communicated with the front end of the bottom groove 11 located below it, and each vertical groove 12 is respectively provided with a vertical sealing cover plate 13, each top groove 10 is respectively provided with a top sealing cover plate 14, and each bottom groove 11 is respectively provided with a bottom sealing cover plate 15. Therefore, the heat absorber insulation structure assembly of the present invention has good insulation performance, which stabilizes the temperature of the heat absorber and avoids large heat loss of the heat absorber, thereby ensuring the effective and stable operation of the heat absorber equipment and avoiding the hazard of pipe blockage in the heat absorber.

[0038] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineers and technicians in the field should all fall within the protection scope of the claims of the present invention.

Claims

1. The heat absorber insulation structure assembly comprises a plurality of insulation blocks connected end to end, characterized in that: Two adjacent insulation blocks are connected as follows: The left and right sides of the top of the first insulation block (1) of the two adjacent insulation blocks are respectively provided with a first insulation block top groove (3) along the horizontal direction of the first insulation block (1); the left and right sides of the top of the second insulation block (2) of the two adjacent insulation blocks are respectively provided with a second insulation block top groove (5) along the side of the second insulation block (2); the adjacent first insulation block top groove (3) and the second insulation block top groove (5) form a top groove (10); The left and right sides of the bottom end of the first thermal insulation block (1) are respectively provided with first thermal insulation block bottom end slots (4) along the horizontal direction of the first thermal insulation block (1); the left and right sides of the bottom end of the second thermal insulation block (2) are respectively provided with second thermal insulation block bottom end slots (6) along the side edges of the second thermal insulation block (2); the adjacent first thermal insulation block bottom end slots (4) and the second thermal insulation block bottom end slots (6) form a bottom end groove (11); The left and right sides of the front end of the first thermal insulation block (1) are respectively provided with first thermal insulation block vertical grooves (7) along the vertical direction of the first thermal insulation block (1); the left and right sides of the front end of the second thermal insulation block (2) are respectively provided with second thermal insulation block vertical grooves (8) along the vertical direction of the second thermal insulation block (2); adjacent first thermal insulation block vertical grooves (7) and second thermal insulation block vertical grooves (8) form a vertical groove (12); The top end of each vertical groove (12) is respectively communicated with the front end of the top groove (10) located above it, and the bottom end of each vertical groove (12) is respectively communicated with the front end of the bottom groove (11) located below it. A vertical sealing cover plate (13) is respectively provided in each vertical groove (12), a top sealing cover plate (14) is respectively provided in each top groove (10), and a bottom sealing cover plate (15) is respectively provided in each bottom groove (11).

2. The heat absorber insulation structure assembly according to claim 1, characterized in that: each The top ends of the vertical sealing cover plates (13) are respectively fixedly connected to the front ends of the top sealing cover plates (14) located above them, and the bottom ends of each vertical sealing cover plate (13) are respectively fixedly connected to the front ends of the bottom sealing cover plates (15) located below them.

3. The heat absorber insulation structure assembly according to claim 2, characterized in that: The first heat-insulating block (1) and the second heat-insulating block (2) are respectively fixedly connected to a steel frame (9) of the heat absorber by fasteners, and the surface of the steel frame (9) is provided with a high-temperature resistant heat-insulating coating.

4. The heat absorber insulation structure assembly according to claim 3, characterized in that: The thickness of the first insulation block (1) along the front-to-back horizontal direction is 100mm-500mm, the thickness of the second insulation block (2) along the front-to-back horizontal direction is 100mm-500mm, the width of the vertical groove (12) is 50mm-100mm, the width of the top groove (10) is 50mm-100mm, and the width of the bottom groove (11) is 50mm-100mm.

5. The heat absorber insulation structure assembly according to claim 4, characterized in that: The included angle between the rearward end surface of the adjacent first thermal insulation block (1) and the rearward end surface of the second thermal insulation block (2) is 110°-175°.

6. The heat absorber insulation structure assembly according to claim 5, characterized in that: The vertical sealing cover plate (13), the top sealing cover plate (14) and the bottom sealing cover plate (15) are made of heat-insulating materials.

7. The heat absorber insulation structure assembly according to any one of claims 1 to 6, characterized in that: The cross-sections of the first heat-insulating block (1) and the second heat-insulating block (2) along the horizontal direction are respectively isosceles trapezoids or sectors with a wide front end and a narrow rear end.