Boiler sealing device

Abstract

The utility model discloses a boiler sealing device, which belongs to the technical field of boiler sealing and comprises a furnace cover, an upper threaded rod is rotatably connected in the furnace cover, a first sleeve block is in threaded connection with the outer side wall of the upper threaded rod, a lifting rod is slidably connected with the furnace cover, and an annular sealing gasket is fixedly connected to the bottom of the lifting rod. The bottom of the upper threaded rod is fixedly connected with a lower threaded rod. According to the boiler sealing device, an upper threaded rod and a first sleeve block are used in cooperation, a supporting rod drives a lifting rod to move and adjust, an annular sealing gasket can conveniently move to be attached to or separated from a boiler cover, and then a second sleeve block drives a connecting rod to move to adjust the height of a pressing plate under the action of a lower threaded rod; the inner ring of the stabilized annular sealing gasket is further extruded, the attaching effect between the inner ring of the annular sealing gasket and the furnace cover is improved, water vapor permeating into the furnace cover is reduced, the position of the annular sealing gasket can be adjusted, and water vapor permeating into the furnace cover can be conveniently removed.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler sealing, and specifically relates to a boiler sealing device. Background Art

[0002] Boiler top seal refers to the device used to close the top of the boiler furnace, designed to prevent smoke, heat or other emissions generated by the combustion process from escaping from the top of the boiler into the surrounding environment.

[0003] After checking the publication (announcement) number: CN212005633U, a sealing cover of a power station boiler is disclosed. This technology discloses "including a boiler port, the top right side of the boiler cover is fixedly connected to the bottom of the pull handle, the left side of the movable limit rod is movably connected to the inner wall of the notch opened on the right side of the boiler cover, the outer surface of the movable limit rod passes through the inner wall of the clamping frame and is movably connected to the clamping frame, and the outer surface of the fixing bolt passes through the notch opened on the right side of the outer surface of the movable limit rod and is movably connected to the fixing bolt. The utility model connects a first hydraulic rod to the left side of the boiler port and is connected to the boiler cover through a rotating shaft and a fixed rod, connects a second hydraulic rod to the right side of the boiler port and is connected to the boiler cover through a clamping frame and a movable limit rod, and controls the lifting and lowering of the hydraulic rods on both sides to cover the boiler cover on the boiler port or lift the boiler cover from the boiler port, so as to facilitate workers to control the lifting and opening of the boiler cover and reduce the labor intensity of workers";

[0004] However, in the above-mentioned comparative documents, when the seal and the furnace cover become loose, some water vapor or dust may penetrate and remain between the seal and the furnace cover, thereby causing the seal material to expand, deform or corrode, thereby reducing the performance of the seal, and at the same time, it is not convenient to further squeeze the inner ring of the seal to reduce the penetration of water vapor or dust;

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a boiler sealing device to overcome the above technical problems existing in the existing related technology.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A boiler sealing device comprises a furnace cover, wherein an upper threaded rod is rotatably connected inside the furnace cover, an outer wall of the upper threaded rod is threadedly connected to a first block, an outer wall of the first block is fixedly connected to a support rod, a bottom of the support rod is fixedly connected to a lifting rod, the lifting rod is slidably connected to the furnace cover, an annular sealing gasket is fixedly connected to the bottom of the lifting rod, a lower threaded rod is fixedly connected to the bottom of the upper threaded rod, an outer wall of the lower threaded rod is threadedly connected to a second block, an outer wall of the second block is fixedly connected to a connecting rod, an end of the connecting rod away from the second block is fixedly connected to a pressure plate, and the pressure plate abuts against the annular sealing gasket.

[0009] Preferably, the bottom of the lower threaded rod is fixedly connected to a bottom block, and the lower threaded rod, the upper threaded rod and the bottom block are coaxial.

[0010] By providing the bottom block, it is achieved to prevent the second set of blocks from moving to be separated from the lower threaded rod.

[0011] Preferably, the top of the upper threaded rod is fixedly connected to an adjusting disk, and the outer side wall of the adjusting disk is fixedly connected to a rotating rod.

[0012] By arranging the adjusting disk and the rotating rod, the upper threaded rod can be easily rotated.

[0013] Preferably, a groove is provided at the bottom of the furnace cover, and the furnace cover is fitted with the annular sealing gasket through the groove.

[0014] By providing the groove, the annular sealing gasket can be easily moved to fit with the furnace cover.

[0015] Preferably, a through hole is opened on the furnace cover, and the inner circumference of the through hole is equal to the outer circumference of the lifting rod.

[0016] By providing the through hole, it is possible to facilitate the lifting rod to penetrate the interior of the furnace cover.

[0017] Preferably, a positioning rod is fixedly connected to the bottom of the furnace cover, and the positioning rod is slidably connected to the connecting rod.

[0018] By setting the positioning rod, the accuracy of the up and down movement of the connecting rod is increased.

[0019] To sum up, the technical effects and advantages of the utility model are as follows: the boiler sealing device, through the coordinated use of the upper threaded rod and the first set of blocks, the support rod drives the lifting rod to move and adjust, so that the annular sealing gasket can be moved to fit or separate from the furnace cover, and then through the action of the lower threaded rod, the second set of blocks drives the connecting rod to move, and the height of the pressure plate is adjusted, thereby further squeezing the inner ring of the annular sealing gasket after stabilization, increasing the fitting effect between the inner ring of the annular sealing gasket and the furnace cover, and reducing the infiltration of water vapor into the interior of the furnace cover; secondly, the position of the annular sealing gasket can be adjusted to facilitate the removal of water vapor infiltrated into the furnace cover, avoiding expansion, deformation or corrosion of the annular sealing gasket material, thereby reducing the performance of the sealing gasket and making it unable to effectively prevent the leakage of liquid or gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the lifting rod and its related structures of the utility model;

[0022] Figure 3 This is a schematic diagram of the upper threaded rod and its related structures of the utility model;

[0023] Figure 4 This is a schematic diagram of the groove and its related structures of the utility model.

[0024] In the figure: 1, furnace cover; 2, upper threaded rod; 3, first set of blocks; 4, support rod; 5, lifting rod; 6, annular sealing gasket; 7, lower threaded rod; 8, second set of blocks; 9, connecting rod; 10, pressure plate; 11, bottom block; 12, adjusting disk; 13, rotating rod; 14, groove; 15, through hole; 16, positioning rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figure 1-3A boiler sealing device comprises a furnace cover 1, wherein the furnace cover 1 is rotatably connected with an upper threaded rod 2 inside, and the upper threaded rod 2 is located at the inner center of the furnace cover 1, and the outer wall of the upper threaded rod 2 is threadedly connected with a first set of blocks 3, and the inner wall of the first set of blocks 3 is adapted to the outer wall of the upper threaded rod 2, and the outer wall of the first set of blocks 3 is fixedly connected with a support rod 4, and eight support rods 4 are provided, and the eight support rods 4 are located outside the first set of blocks 3 and are distributed in a circumferential array, and the bottom of the support rod 4 is fixedly connected with a lifting rod 5, and the number of the lifting rods 5 and the supporting rod 4 is equal, and the lifting rod 5 is slidably connected to the furnace cover 1, and the bottom of the lifting rod 5 is fixedly connected with an annular sealing gasket 6, which is mainly composed of rubber material and has a certain elasticity, and the bottom of the upper threaded rod 2 is fixedly connected with a lower threaded rod 7, and the lower threaded rod 7 is located at the bottom center of the upper threaded rod 2, and the outer wall of the lower threaded rod 7 is threadedly connected with a second set of blocks 8, and the inner side of the second set of blocks 8 The wall is adapted to the outer wall of the lower threaded rod 7, and the outer wall of the second set of blocks 8 is fixedly connected with a connecting rod 9. Four connecting rods 9 are arranged, and the four connecting rods 9 are located on the outer wall of the second set of blocks 8 and are distributed in a circular array. The end of the connecting rod 9 away from the second set of blocks 8 is fixedly connected with a pressing plate 10, and the pressing plate 10 abuts against the annular sealing gasket 6. When the annular sealing gasket 6 is fitted with the furnace cover 1, the upper threaded rod 2 and the lower threaded rod 7 continue to rotate, so that the annular sealing gasket 6 is tightly attached to the furnace cover 1, and the second set of blocks 8 drives the connecting rod 9 to move upward, and the pressing plate 10 moves to squeeze the inner circle of the annular sealing gasket 6 to reduce the infiltration of water vapor from the inner circle gap of the annular sealing gasket 6. At the same time, the upper threaded rod 2 is rotated in the opposite direction, and the first set of blocks 3 and the second set of blocks 8 both move downward, and the annular sealing gasket 6 moves to separate from the furnace cover 1, so that the residual water vapor inside the furnace cover 1 can be removed to avoid expansion, deformation or corrosion of the annular sealing gasket 6 material, thereby reducing the performance of the sealing gasket.

[0027] Reference Figure 3 The bottom of the lower threaded rod 7 is fixedly connected with a bottom block 11, and the bottom block 11 is located at the bottom center of the lower threaded rod 7. The lower threaded rod 7, the upper threaded rod 2 and the bottom block 11 are coaxial. The bottom block 11 prevents the second set of blocks 8 from moving to separate from the lower threaded rod 7.

[0028] Reference Figure 3 The top of the upper threaded rod 2 is fixedly connected with an adjusting disk 12, and the adjusting disk 12 is located at the top center of the upper threaded rod 2. The outer wall of the adjusting disk 12 is fixedly connected with a rotating rod 13. The adjusting disk 12 and the rotating rod 13 facilitate the upper threaded rod 2 to rotate forward or reverse.

[0029] Reference Figure 4 A groove 14 is provided at the bottom of the furnace cover 1 , and the groove 14 is matched with the positioning rod 16 . The furnace cover 1 fits with the annular sealing gasket 6 through the groove 14 , and the groove 14 facilitates the annular sealing gasket 6 to move to fit tightly with the furnace cover 1 .

[0030] Reference Figure 4The furnace cover 1 is provided with through holes 15, and there are eight through holes 15. The eight through holes 15 are arranged on the furnace cover 1 in a circular array. The inner circumference of the through holes 15 is equal to the outer circumference of the lifting rod 5. The through holes 15 facilitate the lifting rod 5 to move up and down.

[0031] Reference Figure 4 A positioning rod 16 is fixedly connected to the bottom of the furnace cover 1. Four positioning rods 16 are arranged. The four positioning rods 16 are evenly distributed at the bottom of the furnace cover 1. The positioning rod 16 is slidably connected to the connecting rod 9. The positioning rod 16 increases the accuracy of the upward and downward movement of the connecting rod 9.

[0032] Working principle: first, the annular sealing gasket 6 is fixed under the multiple lifting rods 5, the rotating rod 13 drives the adjusting disk 12 to rotate, and the upper threaded rod 2 and the lower threaded rod 7 rotate accordingly, the first set of blocks 3 drives the support rod 4 to move upward, and the lifting rod 5 drives the annular sealing gasket 6 to move upward to the inside of the groove 14, at this time, the pressing plate 10 is in contact with the annular sealing gasket 6, because the annular sealing gasket 6 is made of rubber material and has a certain elasticity, the rotating rod 13 is continuously rotated, the lower threaded rod 7 rotates, the second set of blocks 8 drives the connecting rod 9 to move upward, and the pressing plate 10 moves to squeeze the annular sealing gasket 6, so that the inner ring part of the annular sealing gasket 6 is in close contact with the furnace cover 1 to prevent water vapor from penetrating into the interior of the groove 14, the rotating rod 13 drives the adjusting disk 12 to rotate in the opposite direction, and the support rod 4 drives the lifting rod 5 to move downward, at this time, the second set of blocks 8 drives the connecting rod 9 to move downward, the pressing plate 10 no longer squeezes the annular sealing gasket 6, and the annular sealing gasket 6 is no longer in contact with the furnace cover 1, the residual water vapor in the groove 14 can be cleaned to prevent the positioning rod 16 material from expanding, deforming or corroding.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A boiler sealing device, comprising a boiler cover (1), characterized in that: The furnace cover (1) is rotatably connected to an upper threaded rod (2), the outer wall of the upper threaded rod (2) is threadedly connected to a first block (3), the outer wall of the first block (3) is fixedly connected to a support rod (4), the bottom of the support rod (4) is fixedly connected to a lifting rod (5), the lifting rod (5) is slidably connected to the furnace cover (1), the bottom of the lifting rod (5) is fixedly connected to an annular sealing gasket (6), the bottom of the upper threaded rod (2) is fixedly connected to a lower threaded rod (7), the outer wall of the lower threaded rod (7) is threadedly connected to a second block (8), the outer wall of the second block (8) is fixedly connected to a connecting rod (9), the end of the connecting rod (9) away from the second block (8) is fixedly connected to a pressing plate (10), and the pressing plate (10) abuts against the annular sealing gasket (6).

2. A boiler sealing device according to claim 1, characterized in that: The bottom of the lower threaded rod (7) is fixedly connected to a bottom block (11), and the lower threaded rod (7), the upper threaded rod (2) and the bottom block (11) are coaxial.

3. A boiler sealing device according to claim 1, characterized in that: The top of the upper threaded rod (2) is fixedly connected to an adjusting disk (12), and the outer side wall of the adjusting disk (12) is fixedly connected to a rotating rod (13).

4. A boiler sealing device according to claim 1, characterized in that: A groove (14) is provided at the bottom of the furnace cover (1), and the furnace cover (1) is fitted with the annular sealing gasket (6) via the groove (14).

5. A boiler sealing device according to claim 1, characterized in that: The furnace cover (1) is provided with a through hole (15), and the inner circumference of the through hole (15) is equal to the outer circumference of the lifting rod (5).

6. A boiler sealing device according to claim 1, characterized in that: A positioning rod (16) is fixedly connected to the bottom of the furnace cover (1), and the positioning rod (16) is slidably connected to the connecting rod (9).

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