Flexible sealing device for water seal tank at bottom of boiler

Abstract

The utility model provides a flexible sealing device for a water seal tank at the bottom of a boiler, which comprises a corrugated pipe, a connecting piece is arranged at one end of the corrugated pipe, and the water seal tank is arranged at the other end of the corrugated pipe. The two fixing sleeves are arranged on the surface of the corrugated pipe, and a plurality of rotating holes are formed in the two fixing sleeves. According to the flexible sealing device for the water seal tank at the bottom of the boiler, a plurality of clamping blocks are matched with a plurality of clamping grooves, a plurality of connecting grooves and a plurality of connecting blocks, the flexible sealing device is inserted into a corrugated pipe, and after the corrugated pipe and a connecting piece or the corrugated pipe and the water seal tank are preliminarily limited, the fixing sleeve is rotated, so that the flexible sealing device can be used for sealing the water seal tank at the bottom of the boiler. And after the surface of the corrugated pipe moves to a proper position, the multiple connecting blocks are limited while the corrugated pipe and the connecting piece or the corrugated pipe and the water seal tank are limited, so that the corrugated pipe is conveniently and rapidly mounted and dismounted, and the corrugated pipe is conveniently replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler field especially relates to a boiler furnace bottom water seal groove flexible sealing device. BACKGROUND

[0002] The metal bellows expansion joint is usually installed at the edge part of the furnace bottom water seal groove and the boiler bottom structure, because the bottom is heated to produce expansion and displacement during the operation of the boiler, the metal bellows expansion joint installed at the edge part can effectively compensate the relative displacement between the boiler bottom and the water seal groove due to thermal expansion, for example, when the furnace bottom temperature rises in a large coal-fired boiler, the metal bellows expansion joint can be stretched with the outward expansion of the boiler bottom structure, to ensure that the sealing connection of the water seal groove and the boiler bottom is not damaged.

[0003] However, the water seal groove and the metal bellows expansion joint are fixed by multiple bolts, which makes it inconvenient to disassemble and install later, and the connection part can be damaged due to excessive local stress during loosening of the bolts.

[0004] Therefore, it is necessary to provide a boiler furnace bottom water seal groove flexible sealing device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model provides a boiler furnace bottom water seal groove flexible sealing device, solves the inconvenient installation and disassembly between the water seal groove and the metal bellows expansion joint.

[0006] To solve the above technical problems, the utility model provides a boiler furnace bottom water seal groove flexible sealing device, which comprises:

[0007] The bellows pipe is provided with a connecting piece at one end, and a water seal groove at the other end;

[0008] Two fixing sleeves are arranged on the surface of the bellows pipe, and a plurality of rotating holes are formed in the interior of the two fixing sleeves;

[0009] A plurality of clamping grooves are arranged in the interior of the bellows pipe, a clamping block is slidably connected in the interior of each clamping groove, a connecting groove is arranged at one end of each clamping groove, and a connecting block is slidably connected in the interior of each connecting groove.

[0010] Preferably, a plurality of positioning holes are formed in the interior of the bellows pipe, a positioning pin is slidably connected in the interior of each positioning hole, and two rotating rings are arranged at one end of each positioning pin.

[0011] Preferably, one end of each positioning pin is fixedly connected to one side of each rotating ring.

[0012] Preferably, the surface of the connector is provided with a fixing ring, and the fixing ring is provided with a fixing mechanism inside.

[0013] Preferably, the fixing mechanism includes a fixing hole, and a fixing pin is threaded into the fixing hole.

[0014] Preferably, a positioning ring is fixedly connected inside the bellows, and a limiting element is provided inside the positioning ring.

[0015] Preferably, a sliding ring is provided at the top of the positioning ring, and an extension tube is fixedly connected inside the sliding ring.

[0016] Compared with related technologies, the flexible sealing device for the boiler bottom water seal groove provided by this utility model has the following advantages:

[0017] This utility model provides a flexible sealing device for a boiler bottom water seal groove. Multiple locking blocks, along with multiple locking slots, multiple connecting slots, and multiple connecting blocks, are inserted into the interior of a corrugated pipe. After initial positioning of the corrugated pipe and connectors or the corrugated pipe and water seal groove, the fixing sleeve is rotated to move the corrugated pipe to a suitable position on its surface. Simultaneously, positioning of the corrugated pipe and connectors or the corrugated pipe and water seal groove, as well as positioning of the multiple connecting blocks, facilitates quick and easy installation and disassembly of the corrugated pipe, and makes replacement of the corrugated pipe convenient. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a first embodiment of a flexible sealing device for a boiler bottom water seal groove provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the bellows.

[0020] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0021] Figure 4 for Figure 3 The enlarged schematic diagram of section B is shown below;

[0022] Figure 5 This is a schematic diagram of the second embodiment of a flexible sealing device for a boiler bottom water seal groove provided by this utility model.

[0023] The following are the labels in the diagram: 1. Corrugated pipe, 2. Connector, 3. Water seal groove, 4. Fixing sleeve, 5. Rotating hole, 6. Slot, 7. Block, 8. Connecting groove, 9. Connecting block, 10. Positioning hole, 11. Positioning pin, 12. Rotating ring, 13. Fixing ring, 14. Fixing mechanism, 141. Fixing hole, 142. Fixing pin, 15. Positioning ring, 16. Limiting component, 17. Extension tube, 18. Sliding ring. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] First Embodiment

[0026] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a flexible sealing device for a boiler bottom water seal groove provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the bellows. Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 4 for Figure 3 The enlarged schematic diagram of section B shown. A flexible sealing device for a boiler bottom water seal groove includes:

[0027] A corrugated pipe 1, one end of which is provided with a connector 2, and the other end of which is provided with a water seal groove 3;

[0028] Two fixing sleeves 4. Both fixing sleeves 4 are disposed on the surface of the bellows 1, and both fixing sleeves 4 have multiple rotating holes 5 inside;

[0029] Multiple slots 6 are provided inside the corrugated pipe 1. Each slot 6 has a slidably connected block 7 inside it. Each slot 6 has a connecting groove 8 at one end. Each connecting groove 8 has a connecting block 9 slidably connected inside it.

[0030] The connector 2, the corrugated pipe 1, and the water seal groove 3 are all provided with multiple slots 6 and multiple connecting grooves 8.

[0031] One side of a connecting block 9 is fixedly connected to one end of two locking blocks 7, thereby forming a C-shape with the two locking blocks 7. This is used to initially limit the movement between the corrugated pipe 1 and the connecting block 2 or the water seal groove 3 after the two locking blocks 7 are inserted into the slot 6 inside the corrugated pipe 1 and the slot 6 inside the connector 2 or the water seal groove 3.

[0032] The fixed sleeve 4 is a threaded sleeve, and the surfaces of the connecting piece 2, the corrugated pipe 1 and the water seal groove 3 are provided with threads matched with the fixed sleeve 4, so that the corrugated pipe 1 and the connecting piece 2 or the corrugated pipe 1 and the water seal groove 3 are limited after the fixed sleeve 4 is rotated to a proper position.

[0033] The corrugated pipe 1 is internally provided with a plurality of positioning holes 10, and the plurality of positioning holes 10 are internally and slidably connected with positioning pins 11.

[0034] The rotating ring 12 is rotatably connected to the inside of the fixed sleeve 4 and slidably connected to the surface of the corrugated pipe 1.

[0035] The plurality of positioning pins 11 are fixedly connected to one side of the two rotating rings 12.

[0036] The plurality of clamping blocks 7 are internally provided with positioning holes 10, and the connecting piece 2 and the water seal groove 3 are also internally provided with a plurality of positioning holes 10, so that the plurality of positioning pins 11 are inserted into the plurality of positioning holes 10 after the fixed sleeve 4 is moved to a proper position, the plurality of clamping blocks 7 are limited, and the limiting effect of the clamping blocks 7 is increased.

[0037] The surface of the connecting piece 2 is provided with a fixed ring 13, and the inside of the fixed ring 13 is provided with a fixing mechanism 14.

[0038] The fixing mechanism 14 comprises a fixing hole 141, and the inside of the fixing hole 141 is threadedly connected with a fixing pin 142.

[0039] The fixing pin 142 is a bolt, and the fixing hole 141 is a threaded hole matched with the fixing pin 142, so that the fixing pin 142 is installed into the fixing hole, and the fixed sleeve 4 is limited.

[0040] After the fixed sleeve 4 is installed to a proper position on the surface of the corrugated pipe 1, the fixing hole 141 in the fixed sleeve 4 is matched with the fixing hole 141 in the fixed ring 13, and the fixed sleeve 4 is limited after the fixing pin 142 is installed into the fixing hole 141, so that the fixing effect of the fixed sleeve 4 is increased.

[0041] The working principle of the flexible sealing device for the water seal groove of the boiler bottom is as follows:

[0042] When the corrugated pipe 1 needs to be disassembled, the fixing sleeve 4 is rotated to one side, so that the fixing sleeve 4 is moved downward on the surface of the corrugated pipe 1 to separate the corrugated pipe 1 from the connecting piece 2 or the water seal groove 3, and then the plurality of connecting blocks 9 are moved to one side to drive the plurality of clamping blocks 7 to be separated.

[0043] When the corrugated pipe 1 needs to be disassembled, the fixing sleeve 4 is rotated to one side, so that the fixing sleeve 4 is moved downward on the surface of the corrugated pipe 1 to separate the corrugated pipe 1 from the connecting piece 2 or the water seal groove 3, and then the plurality of connecting blocks 9 are moved to one side to drive the plurality of clamping blocks 7 to be separated.

[0044] Compared with the related art, the boiler bottom water seal groove flexible sealing device has the following beneficial effects:

[0045] The boiler bottom water seal groove flexible sealing device comprises a corrugated pipe 1, a connecting piece 2, a water seal groove 3, a fixing sleeve 4, a plurality of clamping blocks 7, a plurality of clamping grooves 6, a plurality of connecting grooves 8, a plurality of connecting blocks 9 and an extension pipe 17.

[0046] Second embodiment

[0047] Please refer to Figure 5 Based on the first embodiment of the boiler bottom water seal groove flexible sealing device, the second embodiment of the boiler bottom water seal groove flexible sealing device is provided. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment.

[0048] Specifically, the second embodiment of the boiler bottom water seal groove flexible sealing device is different from the first embodiment in that the corrugated pipe 1 is fixedly connected with a positioning ring 15, and the positioning ring 15 is provided with a limiting piece 16.

[0049] The limiting piece 16 is a bolt, and the positioning ring 15 and the extension pipe 17 are provided with threaded holes matched with the bolt in the inside, so as to limit the extension pipe 17 after the bolt is installed in the threaded hole.

[0050] The top of the positioning ring 15 is provided with a sliding ring 18, and the inner part of the sliding ring 18 is fixedly connected with an extension pipe 17.

[0051] The corrugated pipe 1 is divided into two sections, the inner part of one section is fixedly connected with a positioning ring 15, and the sliding ring 18 is also slidingly connected to the inner part of the corrugated pipe 1, and the sliding ring 18 is fixedly connected to one end of the surface of the extension pipe 17, and the other end of the extension pipe 17 is fixedly connected to one end of the other section of the corrugated pipe 1, so that the corrugated pipe 1 can be stretched and contracted by a certain distance.

[0052] The working principle of the boiler furnace bottom water seal groove flexible sealing device is as follows:

[0053] When the corrugated pipe 1 needs to be taken out, the limiting piece 16 is disassembled, the extension pipe 17 connected with the sliding ring 18 is moved upwards in the inner part of the corrugated pipe 1 to a suitable position, and then the corrugated pipe 1 can be taken out.

[0054] When the corrugated pipe 1 is installed, the corrugated pipe 1 is moved upwards, so that the extension pipe 17 connected with the sliding ring 18 is moved downwards in the inner part of the corrugated pipe 1 to contact the top of the positioning ring 15, and then the limiting piece 16 is installed.

[0055] Compared with the related art, the boiler furnace bottom water seal groove flexible sealing device has the following beneficial effects:

[0056] The boiler furnace bottom water seal groove flexible sealing device provided by the utility model has the advantages that the corrugated pipe 1 can be shortened by a certain distance through the cooperation of the sliding ring 18, the extension pipe 17 and the positioning ring 15, so that the corrugated pipe 1 can be conveniently moved to one side.

[0057] The above-mentioned embodiments are only examples of the utility model, and do not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion or direct or indirect application in other related technical fields according to the contents of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A flexible sealing device for a boiler bottom water seal groove, characterized in that, include: A corrugated pipe, one end of which is provided with a connector and the other end of which is provided with a water seal groove; Two fixing sleeves are provided on the surface of the bellows, and multiple rotation holes are provided inside the two fixing sleeves; Multiple slots are provided inside the corrugated pipe, and each slot has a slidably connected block inside. One end of each slot has a connecting groove, and each connecting groove has a slidably connected block inside.

2. The flexible sealing device for the boiler bottom water seal groove according to claim 1, characterized in that, The bellows has multiple positioning holes inside, and each of the positioning holes is slidably connected to a positioning pin. One end of each positioning pin is provided with two rotating rings.

3. The flexible sealing device for the boiler bottom water seal groove according to claim 2, characterized in that, One end of each of the locating pins is fixedly connected to one side of the two rotating rings.

4. The flexible sealing device for the boiler bottom water seal groove according to claim 1, characterized in that, The surface of the connector is provided with a fixing ring, and the fixing ring is provided with a fixing mechanism inside.

5. A flexible sealing device for a boiler bottom water seal groove according to claim 4, characterized in that, The fixing mechanism includes a fixing hole, and a fixing pin is threaded into the fixing hole.

6. A flexible sealing device for a boiler bottom water seal groove according to claim 1, characterized in that, A positioning ring is fixedly connected inside the bellows, and a limiting element is provided inside the positioning ring.

7. A flexible sealing device for a boiler bottom water seal groove according to claim 6, characterized in that, A sliding ring is provided at the top of the positioning ring, and an extension tube is fixedly connected inside the sliding ring.

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