Thermal insulation and heat preservation sealing structure for boiler wall of thermal power plant

Abstract

The invention relates to the technical field of boiler walls, in particular to a thermal power plant boiler wall heat insulation and heat preservation sealing structure which comprises a mounting box body, a mounting frame and heat preservation cotton, the mounting frame can be inserted into the mounting box body, and the heat preservation cotton is arranged on the edge of the long side of the mounting frame in a clamping mode. According to the scheme, heat preservation cotton can be clamped through the arranged mounting frame, when the mounting frame clamping the heat preservation cotton enters the mounting box body, an extrusion rod can move towards the middle position of the mounting box body through a driving rack, and at the moment, the heat preservation cotton can move to the position between the extrusion rod and the inner side wall of the mounting box body; and after the heat preservation cotton completely enters the mounting box body, a driving rack is separated from a half gear, an extrusion rod moves towards the inner side wall of the mounting box body again under the action of a torsional spring, and the heat preservation cotton is stably clamped to the inner surface of the mounting box body under the action of the extrusion rod.

Description

Technical Field

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

[0002] Thermal insulation wool (or similar insulation materials) is usually installed between the walls of thermal power plant boilers. Thermal insulation wool is an important component of the boiler wall, mainly used for heat insulation to reduce heat loss and improve the thermal efficiency of the boiler. In thermal power plant boilers, the installation of thermal insulation wool is a key step, which directly affects the thermal insulation effect and operating efficiency of the boiler.

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

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

[0005] A thermal insulation and heat preservation sealing structure for a boiler wall in a thermal power plant, comprising a mounting box, a mounting frame and heat preservation cotton, wherein the mounting frame can be inserted into the mounting box, and the heat preservation cotton is arranged on the edge of a longer side of the mounting frame by clamping;

[0006] The installation box is provided with a plurality of extrusion rods and driven rods, and in the initial state, the extrusion rods are in contact with the inner wall of the installation box, and the plurality of extrusion rods are distributed on the side wall on one side of the interior of the installation box. After the installation frame is moved into the installation box, the extrusion rods will move toward the inner wall of the installation box, and the movement of the extrusion rods will drive the driven rods to move synchronously.

[0007] Preferably, a driving rack is connected to the bottom of the mounting frame through a first telescopic rod, a half gear is provided in the mounting box, and the driving rack corresponds to the half gear;

[0008] The mounting frame is connected with a clamping claw via a second telescopic rod, a reset spring is arranged between the clamping claw and the mounting frame, and the mounting frame is provided with two groups of clamping claws, each group is provided with four clamping claws, and the clamping claws are arranged in a rectangular manner on the mounting frame.

[0009] Preferably, the length of the extrusion rod corresponds to the width of the thermal insulation cotton.

[0010] Preferably, a drive shaft is rotatably connected in the mounting box, and the half gear is fixedly connected to the outer wall of the drive shaft. A torsion spring is provided on the outer wall of the drive shaft, and the two ends of the torsion spring are respectively connected to the inner wall of the mounting box and the half gear. The torsion spring is used for resetting the half gear after rotation.

[0011] Preferably, the driving shaft is fixedly connected with a push rod body, the push rod body is provided with a sliding opening, a sliding block is slidably connected in the sliding opening, and a moving rod is rotatably connected to the sliding block;

[0012] The moving rod is fixedly connected to the extruding rod, and the rotation of the pushing rod body enables the moving rod to move in a vertical direction relative to the inner wall of the installation box.

[0013] Preferably, a fixing rod is fixedly connected to the inner side wall of the shorter side of the installation box, and the fixing rod is connected to the extrusion rod and the driven rod through a third telescopic rod.

[0014] Preferably, the moving rod is provided with a first rack, the driven rod is provided with a second rack, and a rotating gear is rotatably connected to the inner wall of the mounting box. The first rack and the second rack are both meshedly connected with the rotating gear, and the movement of the extrusion rod will cause the extrusion rod and the driven rod to move in relative or opposite directions.

[0015] Preferably, the extrusion rod is connected to an extension rod body, the extension rod body can rotate at a right angle relative to the extrusion rod, the extrusion rod is fixedly connected to a mounting plate, the mounting plate is arranged in an L-shape, a moving shaft is slidably connected in the extrusion rod, the moving shaft and the mounting plate slide relatively, and a fixing spring is arranged between the moving shaft and the mounting plate;

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

[0017] The movable shaft is provided with a rotating arc groove, the extending rod body is provided with a rotating hole, the inner side wall of the rotating hole is provided with a guide shaft, and the guide shaft is slidably connected with the inner side wall of the rotating arc groove.

[0018] Preferably, the extrusion rod and the driven rod are both provided with rotation grooves, and the extension rod body connected to the extrusion rod and the driven rod is fixedly connected with a rotating ring, which is arranged outside the rotating hole and can rotate relative to the rotating grooves.

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

[0020] 1. This scheme can clamp the thermal insulation cotton by setting up a mounting frame, and when the mounting frame clamping the thermal insulation cotton enters the mounting box, the extrusion rod will be moved to the middle position of the mounting box by driving the rack. At this time, the thermal insulation cotton will move between the extrusion rod and the inner wall of the mounting box. Then, when the thermal insulation cotton completely enters the mounting box, the driving rack and the half gear will be disengaged, and the extrusion rod will move toward the inner wall of the mounting box again through the action of the torsion spring, and the thermal insulation cotton will be stably clamped to the inner surface of the mounting box by the action of the extrusion rod.

[0021] 2. This solution can increase the insulation effect of the boiler by installing insulation cotton on the inner walls on opposite sides of the installation box, and by setting a follower rod, after the extrusion rod completes the clamping effect of the insulation cotton on one side, the follower rod can also clamp the insulation cotton on the other side synchronously, thereby improving the insulation effect of the boiler without affecting the installation efficiency of the insulation cotton.

[0022] 3. The extension rod body provided in this scheme can rotate the extension rod body through the extrusion effect of the insulation cotton and the inner wall of the installation box when the extrusion rod and the driven rod move toward the insulation cotton, thereby increasing the extrusion effect on the insulation cotton and making the insulation cotton fit better with the inner wall of the installation box. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0028] Figure 6 For the present invention Figure 5 Enlarged view of point A in .

[0029] In the figure:

[0030] 1. Installation box; 2. Installation frame; 3. Insulation cotton; 4. Driving rack; 5. First telescopic rod; 6. Clamp; 7. Second telescopic rod; 8. Return spring; 9. Driving shaft; 10. Half gear; 11. Torsion spring; 12. Push rod body; 13. Sliding mouth; 14. Sliding block; 15. Moving rod; 16. Extrusion rod; 17. Follower 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 DESCRIPTION

[0031] The following will refer to the attached Figures 1 to 6 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0032] Example 1

[0033] See attached Figure 1 -Attached Figure 6 A thermal insulation and sealing structure for a boiler wall in a thermal power plant comprises a mounting box 1, a mounting frame 2 and thermal insulation cotton 3. The mounting frame 2 can be inserted into the mounting box 1, and the thermal insulation cotton 3 is arranged on the edge of the longer side of the mounting frame 2 by clamping. Figure 1 The mounting frame 2 is inserted into the mounting box 1 with the insulation cotton 3. There are two insulation cottons 3, which are arranged on the side walls of the longer sides of the mounting box 1. It should be noted that the boiler wall is formed by arranging multiple mounting boxes 1.

[0034] The lower part of the mounting frame 2 is connected to a driving rack 4 through a first telescopic rod 5. A half gear 10 is provided in the mounting box 1. The driving rack 4 corresponds to the half gear 10. Figure 3 When the mounting frame 2 initially enters the mounting box 1, the driving rack 4 will first mesh with the half gear 10, and in the process of moving downward, the driving rack 4 will continue to drive the half gear 10 to rotate. And only when the driving rack 4 moves to the maximum extension distance of the first telescopic rod 5, the driving rack 4 will mesh with the half gear 10. When the driving rack 4 shrinks in the direction of the first telescopic rod 5, the driving rack 4 will be disengaged from the half gear 10.

[0035] See attached Figure 2 The mounting frame 2 is connected with a clamping claw 6 via a second telescopic rod 7, and a reset spring 8 is provided between the clamping claw 6 and the mounting frame 2. When the extrusion rod 16 pushes and squeezes the thermal insulation cotton 3, the reset spring 8 will be compressed and the second telescopic rod 7 will be contracted.

[0036] The mounting frame 2 is provided with two groups of clamping jaws 6, each group having four clamping jaws 6, and arranged in a rectangular manner on the mounting frame 2. Preferably, the clamping jaws 6 clamp the four corners of the thermal insulation cotton 3, so that the thermal insulation cotton 3 can enter the mounting box 1 in a fully unfolded posture (when the thermal insulation cotton 3 is not supported, it is easy to fold after being placed in the mounting box 1, and cannot be fully unfolded in the mounting box 1, affecting the thermal insulation performance of the boiler wall).

[0037] A plurality of extrusion rods 16 and driven rods 17 are arranged in the installation box 1, and in the initial state, the extrusion rods 16 are attached to the inner wall of the installation box 1, and the length of the extrusion rods 16 corresponds to the width of the thermal insulation cotton 3. When the installation frame 2 moves downward, the extrusion rods 16 and the driven rods 17 will move to the middle position of the installation box 1, and will not affect the normal downward movement of the installation frame 2.

[0038] A drive shaft 9 is rotatably connected inside the mounting box 1, and the half gear 10 is fixedly connected to the outer wall of the drive shaft 9. A torsion spring 11 is provided on the outer wall of the drive shaft 9, and both ends of the torsion spring 11 are respectively connected to the inner wall of the mounting box 1 and the half gear 10. The torsion spring 11 is used for resetting the half gear 10 after rotation.

[0039] When the mounting frame 2 moves downward, the driving rack 4 will mesh 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. At this time, the extrusion rod 16 corresponding to the half gear 10 will move to the middle position of the mounting box 1, and the moving rod 15 and the extrusion rod 16 will not affect the downward movement of the thermal insulation cotton 3. The torsion spring 11 is set, and the half gear 10 will have a tendency to reset after rotation. When the driving rack 4 is separated from the half gear 10, the half gear 10 will reset under the action of the torsion spring 11, thereby causing the extrusion rod 16 to move toward the inner wall of the mounting box 1 again, thereby clamping the thermal insulation cotton 3 at the inner wall position of the mounting box 1.

[0040] The driving shaft 9 is fixedly connected with a push rod body 12, and a sliding opening 13 is provided on the push rod body 12. A sliding block 14 is slidably connected in the sliding opening 13, and a moving rod 15 is rotatably connected to the sliding block 14. When the push rod body 12 rotates with the driving shaft 9, the sliding opening 13 will rotate, so that the sliding block 14 moves in the sliding opening 13, so that the extrusion rod 16 moves to the middle position of the installation box 1. The shape of the sliding opening 13 may not be unique, as long as it can achieve the effect of causing the extrusion rod 16 to move horizontally when the push rod body 12 rotates.

[0041] The moving rod 15 is fixedly connected to the extruding rod 16 , and the rotation of the pushing rod body 12 enables the moving rod 15 to move in a vertical direction relative to the inner wall of the installation box 1 .

[0042] When the operator pushes the mounting frame 2 completely into the mounting box 1, the driving rack 4 can be moved to disengage the driving rack 4 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 pushing rod body 12 to reset and rotate, the squeezing rod 16 will move toward the inner wall of the mounting box 1, and then the thermal insulation cotton 3 is squeezed onto the inner wall of the mounting box 1 by the squeezing rod 16 to complete the installation of the thermal insulation cotton 3.

[0043] Example 2

[0044] See attached Figure 1 And attached Figure 4 The plurality of extrusion rods 16 are distributed on the side wall of one side of the installation box 1. After the installation frame 2 is moved into the installation box 1, the extrusion rods 16 will move toward the inner wall of the installation box 1, and the movement of the extrusion rods 16 will drive the driven rods 17 to move synchronously. A fixed rod is fixedly connected to the inner wall of the shorter side of the installation box 1, and the fixed rod is connected to the extrusion rods 16 and the driven rods 17 through a third telescopic rod 19.

[0045] Specifically, the moving rod 15 is provided with a first rack 29, the driven rod 17 is provided with a second rack 30, and the inner wall of the installation box 1 is rotatably connected with a rotating gear 18, and the first rack 29 and the second rack 30 are meshed and connected 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 relative or opposite directions. When the extrusion rod 16 drives the moving rod 15 to move to the middle position of the installation box 1, the driven rod 17 will move to the middle position synchronously under the action of the rotating gear 18, and the two thermal insulation cottons 3 are tightly attached to the inner wall of the installation box 1 through the extrusion rod 16 and the driven rod 17. The effect of improving the thermal insulation effect of the boiler is achieved without affecting the installation efficiency of the thermal insulation cotton 3.

[0046] Example 3

[0047] The effect achieved by this embodiment is to increase the fit between the thermal insulation cotton 3 and the inner wall of the installation box 1.

[0048] The extrusion rod 16 is connected to an extension rod body 20, which can rotate at a right angle relative to the extrusion rod 16. The extrusion rod 16 is fixedly connected to a mounting plate 26, which is arranged in an L-shape. A moving shaft 28 is slidably connected inside the extrusion rod 16, and the moving shaft 28 and the mounting plate 26 slide relative to each other. A fixing spring 27 is arranged between the moving shaft 28 and the mounting plate 26. The elastic coefficient of the fixing spring 27 is relatively small. When the extrusion rod 16 moves under the action of the torsion spring 11, the elasticity of the fixing spring 27 can be ignored. Figure 5 -Attached Figure 6 In the initial state of the movable shaft 28, one end thereof extending out is close to the inner wall of the mounting box 1. At this time, there is a certain distance between the movable shaft 28 and the mounting plate 26. When the extrusion rod 16 moves toward the inner wall of the mounting box 1, the movable shaft 28 will contact the thermal insulation cotton 3 and the inner wall of the mounting box 1, and the fixed spring 27 will be compressed, and the movable shaft 28 will move relative to the extrusion rod 16.

[0049] The driven rod 17 is also connected to an extension rod body 20, which can rotate at a right angle relative to the driven rod 17. The driven rod 17 is also fixedly connected to 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 motion state of the moving shaft 28 on the driven rod 17 is similar to that of the moving shaft 28 on the extrusion rod 16, and no detailed description is given.

[0050] See attached Figure 6 The movable shaft 28 is provided with a rotating arc groove 24, the extending rod body 20 is provided with a rotating hole 21, the inner side wall of the rotating hole 21 is provided with a guide shaft 25, and the guide shaft 25 is slidably connected to the inner side wall of the rotating arc groove 24.

[0051] The extrusion rod 16 and the driven rod 17 are both provided with a rotation groove 22 , and the extension rod body 20 connected to the extrusion rod 16 and the driven rod 17 is fixedly connected with a rotation ring 23 , which is arranged outside the rotation hole 21 and can rotate relative to the rotation groove 22 .

[0052] When the extrusion rod 16 or the driven rod 17 moves toward the inner wall of the installation box 1, it will first contact the thermal insulation cotton 3, and then drive the thermal insulation cotton 3 to move toward the inner wall of the installation box 1. After contacting the inner wall of the installation box 1, the moving shaft 28 is moved by the extrusion effect. When the moving shaft 28 moves, the extension rod body 20 is rotated by an angle under the action of the rotating arc groove 24 and the guide shaft 25, so that the contact area between the thermal insulation cotton 3 and the inner wall of the installation box 1 is increased through the action of the extension rod body 20 and the extrusion rod 16, thereby ensuring the stability of the installation.

[0053] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0054] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of 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.

[0055] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying 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 heat preservation sealing structure for boiler walls in thermal power plants, characterized in that: It comprises an installation box (1), an installation frame (2) and thermal insulation cotton (3), wherein the installation frame (2) can be inserted into the installation box (1), and the thermal insulation cotton (3) is arranged on the edge of a longer side of the installation frame (2) by means of clamping; The installation box (1) is provided with a plurality of extrusion rods (16) and driven rods (17), and in an initial state, the extrusion rods (16) are in contact with the inner wall of the installation box (1), and the plurality of extrusion rods (16) are distributed on the side wall of one side inside the installation box (1). After the installation frame (2) moves into the installation box (1), the extrusion rods (16) move toward the inner wall of the installation box (1), and the movement of the extrusion rods (16) drives the driven rods (17) to move synchronously.

2. The thermal insulation and heat preservation sealing structure for boiler wall of thermal power plant according to claim 1, characterized in that: A driving rack (4) is connected to the bottom of the mounting frame (2) via a first telescopic rod (5); a half gear (10) is provided in the mounting box (1); the driving rack (4) corresponds to the half gear (10); The mounting frame (2) is connected to a clamping claw (6) via a second telescopic rod (7), a reset spring (8) is provided between the clamping claw (6) and the mounting frame (2), and the mounting frame (2) is provided with two groups of clamping claws (6), each group having four clamping claws (6) arranged in a rectangular manner on the mounting frame (2).

3. The heat insulation and heat preservation sealing structure for boiler wall of thermal power plant according to claim 1, characterized in that: The length of the extrusion rod (16) corresponds to the width of the thermal insulation cotton (3).

4. The heat insulation and heat preservation sealing structure for boiler wall of thermal power plant according to claim 1, characterized in that: A drive shaft (9) is rotatably connected inside the installation box (1), and the half gear (10) is fixedly connected to the outer wall of the drive shaft (9). A torsion spring (11) is provided on the outer wall of the drive shaft (9), and two ends of the torsion spring (11) are respectively connected to the inner wall of the installation box (1) and the half gear (10). The torsion spring (11) is used for resetting the half gear (10) after rotation.

5. The heat insulation and heat preservation sealing structure for boiler wall of thermal power plant according to claim 4, characterized in that: The driving shaft (9) is fixedly connected with a push rod body (12), the push rod body (12) is provided with a sliding opening (13), a sliding block (14) is slidably connected in the sliding opening (13), and a moving rod (15) is rotatably connected to the sliding block (14); The moving rod (15) and the extruding rod (16) are fixedly connected, and the rotation of the pushing rod body (12) enables the moving rod (15) to move in a direction vertical to the inner wall of the installation box (1).

6. The heat insulation and heat preservation sealing structure for boiler wall of thermal power plant according to claim 1, characterized in that: A fixing rod is fixedly connected to the inner side wall of the shorter side of the installation box (1), and the fixing rod is connected to the extrusion rod (16) and the driven rod (17) via a third telescopic rod (19).

7. The heat insulation and heat preservation sealing structure for boiler wall of thermal power plant according to claim 1, characterized in that: The moving rod (15) is provided with a first rack (29), the driven rod (17) is provided with a second rack (30), the inner wall of the mounting box (1) is rotatably connected with a rotating gear (18), the first rack (29) and the second rack (30) are both meshedly connected with the rotating gear (18), and the movement of the extrusion rod (16) causes the extrusion rod (16) and the driven rod (17) to move in relative or opposite directions.

8. The heat insulation and heat preservation sealing structure for boiler wall of thermal power plant according to claim 1, characterized in that: The extrusion rod (16) is connected to an extension rod body (20), and the extension rod body (20) can rotate at a right angle relative to the extrusion rod (16). The extrusion rod (16) is fixedly connected to a mounting plate (26), 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) and the mounting plate (26) slide relatively with each other. A fixing spring (27) is arranged between the moving shaft (28) and the mounting plate (26); The driven rod (17) is also connected to an extension rod body (20), and 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 to 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 movable shaft (28) is provided with a rotating arc groove (24), the extending rod body (20) is provided with a rotating hole (21), the inner side wall of the rotating hole (21) is provided with a guide shaft (25), and the guide shaft (25) is slidably connected to the inner side wall of the rotating arc groove (24).

9. The heat insulation and heat preservation sealing structure for the furnace wall of a thermal power plant boiler according to claim 8, characterized in that: The extrusion rod (16) and the driven rod (17) are both provided with a rotation groove (22); the extension rod body (20) connected to the extrusion rod (16) and the driven rod (17) is fixedly connected with a rotation ring (23); the rotation ring (23) is arranged outside the rotation hole (21); and the rotation ring (23) can rotate relative to the rotation groove (22).

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