A heat insulation, thermal insulation and sealing structure for the boiler wall of a thermal power plant

Abstract

The present invention relates to the technical field of boiler furnace walls, and particularly relates to a heat insulation, thermal insulation and sealing structure for a boiler furnace wall in a thermal power plant, which includes an installation box body, an installation frame and thermal insulation cotton. The installation frame can be inserted into the installation box body, and the thermal insulation cotton is arranged on the edge of the longer side of the installation frame in a clamped manner. Through the provided installation frame in this solution, the thermal insulation cotton can be clamped. And when the installation frame clamping the thermal insulation cotton enters the installation box body, the driving rack will cause the extrusion rod to move towards the middle position of the installation box body. At this time, the thermal insulation cotton will move between the extrusion rod and the inner side wall of the installation box body. Then, after the thermal insulation cotton completely enters the installation box body, the driving rack is disengaged from the semi-gear, and the extrusion rod moves back towards the inner side wall of the installation box body under the action of the torsion spring. Through the action of the extrusion rod, the thermal insulation cotton is stably clamped to the inner surface of the installation box body.

Description

[0001] The present invention relates to the technical field of boiler furnace walls, and specifically relates to a heat insulation, thermal insulation and sealing structure for the boiler furnace wall of a thermal power plant. Background Art

[0002] Insulation cotton (or similar insulation materials) is usually arranged between the boiler furnace walls of a thermal power plant. The insulation cotton is an important part of the boiler furnace wall, mainly used for heat insulation to reduce heat loss and improve the thermal efficiency of the boiler. In the boiler of a thermal power plant, the setting of the insulation cotton is a key step, which directly affects the heat insulation effect and operation efficiency of the boiler.

[0003] When installing the insulation cotton, the conventional installation method is to fix the insulation cotton in multiple directions through insulation nails or bolts. However, this method has a low installation efficiency for the insulation cotton and is not suitable for the installation of a large area of insulation cotton. In order to improve the installation efficiency of the insulation cotton, a heat insulation, thermal insulation and sealing structure for the boiler furnace wall of a thermal power plant is proposed. Summary of the Invention

[0004] In view of the above situation, in order to overcome the deficiencies of the prior art, the present invention provides a heat insulation, thermal insulation and sealing structure for the boiler furnace wall of a thermal power plant to solve the problems raised in the above background art.

[0005] A heat insulation, thermal insulation and sealing structure for the boiler furnace wall of a thermal power plant includes an installation box body, an installation frame and insulation cotton. The installation frame can be inserted into the installation box body, and the insulation cotton is arranged on the longer side of the installation frame by clamping.

[0006] A plurality of extrusion rods and driven rods are arranged in the installation box body. And in the initial state, the extrusion rods are in contact with the inner side wall of the installation box body. The plurality of extrusion rods are distributed on the side wall of one side inside the installation box body. After the installation frame moves into the installation box body, the extrusion rods will move towards the inner wall of the installation box body, and the movement of the extrusion rods will drive the driven rods to move synchronously.

[0007] The lower part of the installation frame is connected with a driving rack through a first telescopic rod. A half gear is arranged in the installation box body, and the driving rack corresponds to the half gear.

[0008] Claws are connected to the installation frame through a second telescopic rod. A return spring is arranged between the claws and the installation frame. There are two groups of claws on the installation frame, and each group has four claws, which are arranged on the installation frame in a rectangular manner.

[0009] A driving shaft is rotatably connected in the installation box body. The half gear is fixedly connected to the outer side wall of the driving shaft. A torsion spring is arranged on the outer side wall of the driving shaft, and the two ends of the torsion spring are respectively connected between the inner side wall of the installation box body and the half gear. The torsion spring is used for the reset of the half gear after rotation.

[0010] A push rod body is fixedly connected to the drive shaft. A sliding port is formed in the push rod body. A sliding block is slidably connected in the sliding port. A moving rod is rotatably connected to the sliding block.

[0011] The moving rod is fixedly connected to the extrusion rod. The rotation of the push rod body enables the moving rod to move relative to the inner side wall of the installation box body in the vertical direction.

[0012] A first rack is provided on the moving rod, and a second rack is provided on the driven rod. A rotating gear is rotatably connected to the inner side wall of the installation box body. Both the first rack and the second rack are meshed with the rotating gear. The movement of the extrusion rod will cause the extrusion rod and the driven rod to move relative to each other or in opposite directions.

[0013] Preferably, the length of the extrusion rod corresponds to the width of the thermal insulation cotton.

[0014] Preferably, a fixing rod is fixedly connected to the inner side wall of the shorter side of the installation box body. The fixing rod is connected to both the extrusion rod and the driven rod through a third telescopic rod.

[0015] Preferably, an extension rod body is connected to the extrusion rod. The extension rod body can rotate at a right angle relative to the extrusion rod. An installation plate is fixedly connected to the extrusion rod. The installation plate is arranged in an L shape. A moving shaft is slidably connected in the extrusion rod. The moving shaft slides relative to the installation plate. A fixing spring is arranged between the moving shaft and the installation plate.

[0016] An extension rod body is also connected to the driven rod. The extension rod body can rotate at a right angle relative to the driven rod. The driven rod is also fixedly connected with an installation plate. A moving shaft is also slidably connected in the driven rod. The moving shaft slides relative to the corresponding installation plate. A fixing spring is also arranged between the moving shaft and the installation plate.

[0017] A rotating arc groove is provided on the moving shaft. A rotating hole is provided on the extension rod body. A guiding shaft is provided on the inner side wall of the rotating hole. The guiding shaft is slidably connected to the inner side wall of the rotating arc groove.

[0018] Preferably, rotating grooves are provided on both the extrusion rod and the driven rod. Rotating rings are fixedly connected to the extension rod bodies connected to the extrusion rod and the driven rod. The rotating rings are arranged outside the rotating holes. The rotating rings can rotate relative to the rotating grooves.

[0019] The beneficial effects of the present invention are:

[0020] 1. Through the provided mounting rack in this solution, the thermal insulation cotton can be clamped. When the mounting rack clamping the thermal insulation cotton enters the installation box body, the driving rack will cause the extrusion rod to move towards the middle position of the installation box body. At this time, the thermal insulation cotton will move between the extrusion rod and the inner side wall of the installation box body. Then, after the thermal insulation cotton completely enters the installation box body, the driving rack will disengage from the semi-gear, and under the action of the torsion spring, the extrusion rod will move back towards the inner side wall of the installation box body. Through the action of the extrusion rod, the thermal insulation cotton can be stably clamped to the inner surface of the installation box body.

[0021] 2. By arranging the thermal insulation cotton on the inner walls of the opposite sides of the installation box body in this solution, the heat preservation effect on the boiler can be enhanced. And through the provided driven rod, after the extrusion rod completes the clamping effect on the thermal insulation cotton on one side, the driven rod can simultaneously clamp the thermal insulation cotton on the other side, improving the heat preservation effect of the boiler without affecting the installation efficiency of the thermal insulation cotton.

[0022] 3. Through the provided extension rod body in this solution, when the extrusion rod and the driven rod move towards the thermal insulation cotton, the extension rod body can rotate under the extrusion action of the thermal insulation cotton and the inner wall of the installation box body, enhancing the extrusion effect on the thermal insulation cotton and enabling the thermal insulation cotton to fit better with the inner wall of the installation box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is a schematic structural diagram of the mounting rack and the thermal insulation cotton in the present invention;

[0025] Figure 3 is a schematic position diagram of the driving rack in the present invention;

[0026] Figure 4 is a schematic structural diagram of the extrusion rod and the driven rod in the present invention;

[0027] Figure 5 is a schematic structural diagram of the extrusion rod and the extension rod body in the present invention;

[0028] Figure 6 of the present invention Figure 5 is an enlarged view of part A.

[0029] In the figure:

[0030] 1. Installation box body; 2. Installation frame; 3. Thermal insulation cotton; 4. Driving rack; 5. First telescopic rod; 6. Claw; 7. Second telescopic rod; 8. Return spring; 9. Driving shaft; 10. Half gear; 11. Torsion spring; 12. Pushing rod body; 13. Sliding port; 14. Sliding block; 15. Moving rod; 16. Extrusion rod; 17. Driven rod; 18. Rotating gear; 19. Third telescopic rod; 20. Extension rod body; 21. Rotating hole; 22. Rotating groove; 23. Rotating ring; 24. Rotating arc groove; 25. Guide shaft; 26. Installation plate; 27. Fixed spring; 28. Moving shaft; 29. First rack; 30. Second rack. Detailed implementation manners

[0031] The following will refer to the reference appendix Figures 1 to 6 to explain each embodiment of the present invention in detail. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention. Embodiment

[0032] Refer to the appendix Figure 1 - Appendix Figure 6 A heat insulation, thermal insulation and sealing structure for the boiler wall of a thermal power plant, comprising an installation box body 1, an installation frame 2 and thermal insulation cotton 3. The installation frame 2 can be inserted into the installation box body 1, and the thermal insulation cotton 3 is arranged on the longer side of the installation frame 2 by clamping. Refer to the appendix Figure 1 The installation frame 2 enters the installation box body 1 with the thermal insulation cotton 3 by insertion. Moreover, there are two pieces of thermal insulation cotton 3, which are arranged on the side walls of the longer two sides of the installation box body 1. It should be noted that the boiler wall is composed of the arrangement of multiple installation box bodies 1.

[0033] The lower part of the installation frame 2 is connected with a driving rack 4 through a first telescopic rod 5. A half gear 10 is arranged in the installation box body 1, and the driving rack 4 corresponds to the half gear 10; Refer to the appendix Figure 3 When the installation frame 2 initially enters the installation box body 1, the driving rack 4 will first engage with the half gear 10, and during the downward movement, it will continuously drive the half gear 10 to rotate. And only when the driving rack 4 moves to the maximum extended distance of the first telescopic rod 5, the driving rack 4 will engage with the half gear 10. When the driving rack 4 contracts in the direction of the first telescopic rod 5, the driving rack 4 will disengage from the half gear 10.

[0034] Refer to the appendix Figure 2 A claw 6 is connected to the installation frame 2 through a second telescopic rod 7. A return spring 8 is arranged between the claw 6 and the installation frame 2. When the extrusion rod 16 pushes and extrudes the thermal insulation cotton 3, the return spring 8 will be compressed, and at the same time, the second telescopic rod 7 will contract.

[0035] There are two groups of clamping jaws 6 provided on the mounting bracket 2. Each group has four clamping jaws 6, and they are arranged on the mounting bracket 2 in a rectangular manner. Preferably, the clamping jaws 6 clamp the four corners of the heat-insulating cotton 3, so that the heat-insulating cotton 3 can enter the installation box body 1 in a fully unfolded state (when the heat-insulating cotton 3 is not supported, it is likely to fold after being placed in the installation box body 1 and cannot be fully unfolded in the installation box body 1, affecting the heat-insulating performance of the boiler wall).

[0036] There are a plurality of pressing rods 16 and driven rods 17 provided in the installation box body 1. And in the initial state, the pressing rods 16 are in contact with the inner side wall of the installation box body 1, and the length of the pressing rods 16 corresponds to the width of the heat-insulating cotton 3. When the mounting bracket 2 moves downward, the pressing rods 16 and the driven rods 17 will move towards the middle position of the installation box body 1, and will not affect the normal downward movement of the mounting bracket 2.

[0037] A driving shaft 9 is rotatably connected in the installation box body 1. The half gear 10 is fixedly connected to the outer side wall of the driving shaft 9. A torsion spring 11 is provided on the outer side wall of the driving shaft 9. The two ends of the torsion spring 11 are respectively connected between the inner side wall of the installation box body 1 and the half gear 10. The torsion spring 11 is used for the reset of the half gear 10 after rotation.

[0038] When the mounting bracket 2 moves downward, the driving rack 4 will engage with the half gear 10 and drive the half gear 10 and the driving shaft 9 to rotate. When the half gear 10 rotates to the toothless part, it will not continue to rotate. And at this time, the pressing rod 16 corresponding to this half gear 10 will move towards the middle position of the installation box body 1, and will not cause the moving rod 15 and the pressing rod 16 to affect the downward movement of the heat-insulating cotton 3. And through the arranged torsion spring 11, the half gear 10 will always have a tendency to reset after rotation. When the driving rack 4 disengages from the half gear 10, the half gear 10 will be reset under the action of the torsion spring 11, thereby causing the pressing rod 16 to move back towards the inner wall direction of the installation box body 1, and further clamping the heat-insulating cotton 3 at the inner wall position of the installation box body 1.

[0039] A pushing rod body 12 is fixedly connected to the driving shaft 9. A sliding port 13 is opened on the pushing rod body 12. A sliding block 14 is slidably connected in the sliding port 13. A moving rod 15 is rotatably connected to the sliding block 14. When the pushing rod body 12 rotates along with the driving shaft 9, the sliding port 13 will rotate, causing the sliding block 14 to move in the sliding port 13, and causing the pressing rod 16 to move towards the middle position of the installation box body 1. The shape of the sliding port 13 can not be unique, as long as it can cause the pressing rod 16 to move horizontally when the pushing rod body 12 rotates.

[0040] The moving rod 15 is fixedly connected to the pressing rod 16. The rotation of the pushing rod body 12 enables the moving rod 15 to move relative to the inner side wall of the installation box body 1 in the vertical direction.

[0041] When the operator pushes the mounting frame 2 completely into the mounting box body 1, the driving rack 4 can be moved, so that the driving rack 4 disengages from the half gear 10. At this time, the half gear 10 will rotate in the reset direction under the action of the torsion spring 11. When the driving shaft 9 drives the push rod body 12 to rotate in the reset direction, the extrusion rod 16 will move towards the inner wall direction of the mounting box body 1, and then the heat insulation cotton 3 is extruded onto the inner wall of the mounting box body 1 through the extrusion rod 16, completing the installation of the heat insulation cotton 3. Embodiment

[0042] Refer to the attached Figure 1 and the attached Figure 4 As shown in the figure, a plurality of the extrusion rods 16 are distributed at the side wall on one side inside the mounting box body 1. After the mounting frame 2 moves into the mounting box body 1, the extrusion rods 16 will move towards the inner wall direction of the mounting box body 1, and the movement of the extrusion rods 16 will drive the driven rods 17 to move synchronously. A fixing rod is fixedly connected to the inner side wall of the shorter side of the mounting box body 1, and the fixing rod is connected to both the extrusion rod 16 and the driven rod 17 through the third telescopic rod 19.

[0043] Specifically, a first rack 29 is provided on the moving rod 15, a second rack 30 is provided on the driven rod 17, a rotating gear 18 is rotatably connected to the inner side wall of the mounting box body 1, and both the first rack 29 and the second rack 30 are meshed with the rotating gear 18. The movement of the extrusion rod 16 will cause the extrusion rod 16 and the driven rod 17 to move in opposite or opposite directions. When the extrusion rod 16 drives the moving rod 15 to move towards the middle position of the mounting box body 1, the driven rod 17 will move towards the middle position synchronously under the action of the rotating gear 18, and the two heat insulation cottons 3 are pressed against the inner wall of the mounting box body 1 through the extrusion rod 16 and the driven rod 17. It realizes the function of improving the boiler heat insulation effect without affecting the installation efficiency of the heat insulation cotton 3. Embodiment

[0044] The function achieved by this embodiment is to increase the degree of fit between the heat insulation cotton 3 and the inner wall of the mounting box body 1.

[0045] An extension rod body 20 is connected to the extrusion rod 16, and the extension rod body 20 can rotate at a right angle relative to the extrusion rod 16. A mounting plate 26 is fixedly connected to the extrusion rod 16, and the mounting plate 26 is arranged in an L shape. A moving shaft 28 is slidably connected inside the extrusion rod 16, and the moving shaft 28 slides relative to the mounting plate 26. A fixing spring 27 is provided between the moving shaft 28 and the mounting plate 26. The elastic coefficient of the fixing spring 27 is small, and when the extrusion rod 16 moves under the transmission of the torsion spring 11, the elasticity of the fixing spring 27 can be ignored. Refer to the attached Figure 5 - attached Figure 6, in the initial state of the moving shaft 28, the extended end thereof is close to the inner wall position of the mounting box body 1. At this time, there is a certain distance between the moving shaft 28 and the mounting plate 26. When the pressing rod 16 moves towards the inner wall direction of the mounting box body 1, it will cause the moving shaft 28 to contact the heat insulation cotton 3 and the inner wall of the mounting box body 1, causing the fixing spring 27 to be compressed, and the moving shaft 28 will move relative to the pressing rod 16.

[0046] An extension rod body 20 is also connected to the driven rod 17. The extension rod body 20 can rotate at a right angle relative to the driven rod 17. The driven rod 17 is also fixedly connected with a mounting plate 26. A moving shaft 28 is also slidably connected inside the driven rod 17. The moving shaft 28 slides relative to the corresponding mounting plate 26, and a fixing spring 27 is also provided between the moving shaft 28 and the mounting plate 26. The movement state of the moving shaft 28 on the driven rod 17 is similar to that of the moving shaft 28 on the pressing rod 16, and will not be described in detail.

[0047] Refer to the attached Figure 6 , a rotating arc groove 24 is provided on the moving shaft 28, a rotating hole 21 is provided on the extension rod body 20, and a guiding shaft 25 is provided on the inner side wall of the rotating hole 21. The guiding shaft 25 is slidably connected with the inner side wall of the rotating arc groove 24.

[0048] Rotating grooves 22 are provided on both the pressing rod 16 and the driven rod 17. A rotating ring 23 is fixedly connected to the extension rod body 20 connected to the pressing rod 16 and the driven rod 17. The rotating ring 23 is arranged outside the rotating hole 21, and the rotating ring 23 can rotate relative to the rotating groove 22.

[0049] When the pressing rod 16 or the driven rod 17 moves towards the inner side wall of the mounting box body 1, it will first contact the heat insulation cotton 3, and then drive the heat insulation cotton 3 to move towards the inner wall of the mounting box body 1. After contacting the inner wall of the mounting box body 1, the moving shaft 28 is moved by the extrusion effect. When the moving shaft 28 moves, the extension rod body 20 rotates by an angle under the action of the rotating arc groove 24 and the guiding shaft 25, so as to increase the contact area between the heat insulation cotton 3 and the inner wall of the mounting box body 1 through the action of the extension rod body 20 and the pressing rod 16, and ensure the stability of the installation.

[0050] It should be noted that in the description of the present invention, the terms indicating directions or position relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or position relationships shown in the drawings. This is only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A thermal insulation and sealing structure for the boiler wall of a thermal power plant, characterized in that, It includes an installation box body (1), an installation frame (2) and heat insulation cotton (3). The installation frame (2) can be inserted into the installation box body (1), and the heat insulation cotton (3) is arranged on the longer side of the installation frame (2) by clamping means; A plurality of extrusion rods (16) and follower rods (17) are arranged in the installation box body (1). And in the initial state, the extrusion rods (16) are in contact with the inner side wall of the installation box body (1). The plurality of extrusion rods (16) are distributed on the side wall of one side inside the installation box body (1). After the installation frame (2) moves into the installation box body (1), the extrusion rods (16) will move towards the inner wall of the installation box body (1), and the movement of the extrusion rods (16) will drive the follower rods (17) to move synchronously; A driving rack (4) is connected to the lower part of the installation frame (2) through a first telescopic rod (5). A half gear (10) is arranged in the installation box body (1), and the driving rack (4) corresponds to the half gear (10); A clamping jaw (6) is connected to the installation frame (2) through a second telescopic rod (7). A return spring (8) is arranged between the clamping jaw (6) and the installation frame (2). There are two groups of clamping jaws (6) on the installation frame (2), and each group has four clamping jaws (6), which are arranged on the installation frame (2) in a rectangular manner; A driving shaft (9) is rotatably connected in the installation box body (1). The half gear (10) is fixedly connected to the outer side wall of the driving shaft (9). A torsion spring (11) is arranged on the outer side wall of the driving shaft (9). The two ends of the torsion spring (11) are respectively connected between the inner side wall of the installation box body (1) and the half gear (10). The torsion spring (11) is used for the reset of the half gear (10) after rotation; A push rod body (12) is fixedly connected to the driving shaft (9). A sliding port (13) is formed in the push rod body (12). A sliding block (14) is slidably connected in the sliding port (13). A moving rod (15) is rotatably connected to the sliding block (14); The moving rod (15) is fixedly connected to the extrusion rod (16). The rotation of the push rod body (12) enables the moving rod (15) to move in the vertical direction relative to the inner side wall of the installation box body (1); A first rack (29) is arranged on the moving rod (15), and a second rack (30) is arranged on the follower rod (17). A rotating gear (18) is rotatably connected to the inner side wall of the installation box body (1). Both the first rack (29) and the second rack (30) are meshed with the rotating gear (18). The movement of the extrusion rod (16) will cause the extrusion rod (16) and the follower rod (17) to move relatively or in opposite directions.

2. The thermal insulation and sealing structure for the boiler wall of a thermal power plant according to claim 1, wherein The length of the extrusion rod (16) corresponds to the width of the heat insulation cotton (3).

3. A heat insulation, thermal insulation and sealing structure for a boiler wall of a thermal power plant according to claim 1, characterized in that, A fixed rod is fixedly connected to the inner side wall of the shorter side of the installation box body (1). The fixed rod is connected to both the extrusion rod (16) and the follower rod (17) through a third telescopic rod (19).

4. A heat insulation, thermal insulation and sealing structure for the boiler wall of a thermal power plant according to claim 1, characterized in that, An extension rod body (20) is connected to the extrusion rod (16). The extension rod body (20) can rotate at a right angle relative to the extrusion rod (16). An installation plate (26) is fixedly connected to the extrusion rod (16). The installation plate (26) is arranged in an L shape. A moving shaft (28) is slidably connected inside the extrusion rod (16). The moving shaft (28) slides relative to the installation plate (26). A fixing spring (27) is provided between the moving shaft (28) and the installation plate (26). An extension rod body (20) is also connected to the driven rod (17). The extension rod body (20) can rotate at a right angle relative to the driven rod (17). The driven rod (17) is also fixedly connected with an installation plate (26). A moving shaft (28) is also slidably connected inside the driven rod (17). The moving shaft (28) slides relative to the corresponding installation plate (26). A fixing spring (27) is also provided between the moving shaft (28) and the installation plate (26). A rotating arc groove (24) is provided on the moving shaft (28). A rotating hole (21) is provided on the extension rod body (20). A guiding shaft (25) is provided on the inner side wall of the rotating hole (21). The guiding shaft (25) is slidably connected with the inner side wall of the rotating arc groove (24).

5. A heat insulation, thermal insulation and sealing structure for the boiler wall of a thermal power plant according to claim 4, characterized in that, Rotating grooves (22) are provided on both the extrusion rod (16) and the driven rod (17). A rotating ring (23) is fixedly connected to the extension rod body (20) connected to the extrusion rod (16) and the driven rod (17). The rotating ring (23) is arranged outside the rotating hole (21). The rotating ring (23) can rotate relative to the rotating groove (22).

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