Sealing structure for water cooler of semi-waste boiler gasification furnace

Abstract

The utility model relates to the technical field of gasification furnace sealing, in particular to a sealing structure of a water cooler of a semi-waste boiler gasification furnace, which comprises a support cylinder, an arc-shaped plate and a flexible sealing piece which are arranged between the water cooler and an upper water cooling wall, the support cylinder is sleeved on the outer side of the water cooler, the arc-shaped plate is sleeved on the outer side of the support cylinder, and the flexible sealing piece is sleeved on the outer side of the arc-shaped plate. The arc-shaped plate is connected with the upper water cooling wall, and the flexible sealing piece is located between the supporting cylinder and the arc-shaped plate; the supporting cylinder is arranged on the outer side of the water cooler in a sleeving mode, the arc-shaped plate is arranged on the outer side of the supporting cylinder, the arc-shaped plate makes contact with the upper water cooling wall, and meanwhile the flexible sealing piece is arranged between the supporting cylinder and the arc-shaped plate, so that in the actual working process, the upper water cooling wall extrudes the flexible sealing piece after being heated and expanded; the flexible sealing piece deforms along the gap between the supporting barrel and the arc-shaped plate, so that the sealing structure moves, the expansion allowance of the upper water cooling wall is guaranteed, the sealing requirement is met, meanwhile, equipment damage is avoided, and the actual sealing requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gasification furnace sealing, specifically relates to a kind of semi waste pot gasification furnace water cooler sealing structure. BACKGROUND

[0002] Semi waste pot gasification furnace is a new type of gasification furnace technology, which adds a section of radiation waste pot between the gasification chamber and the quenching chamber, and arranges an upper water cooling wall in the waste pot section.

[0003] The raw coal and oxygen undergo incomplete oxidation reaction in the gasification chamber to generate water gas, and the high-temperature water gas enters the waste pot section, absorbs the sensible heat of the water gas to generate saturated steam by passing high-pressure boiler water into the upper and lower water coolers and the upper water cooling wall, to achieve the purpose of recovering heat; after the water gas recovers heat in the waste pot section, it enters the quenching chamber for further quenching.

[0004] In actual work process, the upper water cooler and the upper water cooling wall will produce relative sliding and thermal deformation due to inconsistent thermal expansion, so there is a gap between the two, causing water gas leakage; the existing method usually sets a sealing structure between the two, for example, the Chinese utility model patent with application number 2021213003361 provides a semi waste pot gasification furnace waste pot section sealing structure, which sets filler and heat-resistant parts, and welds a pressing plate inside the water cooler return cofferdam to support the heat-resistant parts while pressing the filler; it is found in actual use that the sealing effect is reduced after the pressing plate produces thermal deformation during welding or use, which easily causes air leakage in the interlayer (between the upper water cooling wall and the outer wall of the gasification furnace) and temperature overheat of the gasification furnace support plate; at the same time, the expansion of the upper water cooling wall is limited under the limiting of the pressing plate and the heat-resistant part after thermal expansion, which easily causes damage to the upper water cooling wall, and cannot meet the actual operation requirements. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a semi waste pot gasification furnace water cooler sealing structure to solve the technical problem of low sealing effect caused by heat in the current semi waste pot gasification furnace water cooler sealing structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A semi waste pot gasification furnace water cooler sealing structure, comprising a support cylinder, an arc-shaped plate and a flexible sealing element arranged between the water cooler and the upper water cooling wall, the support cylinder is sleeved on the outside of the water cooler, the arc-shaped plate is sleeved on the outside of the support cylinder, the arc-shaped plate is connected with the upper water cooling wall, and the flexible sealing element is located between the support cylinder and the arc-shaped plate.

[0008] Further limited, the number of the arc-shaped plates is multiple, the multiple arc-shaped plates are arranged at equal intervals around the axis of the supporting cylinder, and the multiple arc-shaped plates are all close to the upper water cooling wall.

[0009] Further limited, the upper water cooling wall is provided with a sealing block, and the arc-shaped plate is sealingly connected with the upper water cooling wall through the sealing block.

[0010] Further limited, the outer side of the supporting cylinder is sleeved with a bottom supporting ring, the bottom supporting ring is in contact with the bottom of the flexible sealing element, and the bottom supporting ring is located between the supporting cylinder and the arc-shaped plate.

[0011] Further limited, the bottom supporting ring is fixedly connected with the supporting cylinder.

[0012] Further limited, the outer side of the supporting cylinder is further sleeved with a top pressing ring, the top pressing ring is arranged at the top of the flexible sealing element, the top pressing ring is located between the supporting cylinder and the arc-shaped plate, and the top pressing ring is movably connected with the supporting cylinder.

[0013] Further limited, the top of the supporting cylinder is provided with a first circular ring plate, the first circular ring plate is located above the water cooler, the top of the top pressing ring is provided with a second circular ring plate, the second circular ring plate is located directly above the first circular ring plate, and the first circular ring plate is connected with the second circular ring plate through bolts.

[0014] Further limited, the top of the second circular ring plate is provided with a dismounting seat, and the second circular ring plate is fixedly connected with the top pressing ring.

[0015] Further limited, the first circular ring plate is fixedly connected with the supporting cylinder.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、 the utility model discloses a supporting cylinder is sleeved outside the water cooler, and the arc-shaped plate is arranged on the outer side of the supporting cylinder, so that the arc-shaped plate is in contact with the upper water cooling wall, and the flexible sealing element is arranged between the supporting cylinder and the arc-shaped plate, so that when the upper water cooling wall is expanded after being heated and presses the flexible sealing element, the flexible sealing element is deformed along the gap between the supporting cylinder and the arc-shaped plate, the sealing structure is moved, the expansion allowance of the upper water cooling wall is guaranteed, the sealing requirement is realized, the equipment is prevented from being damaged, and the actual sealing requirement is satisfied.

[0018] 2、 the utility model discloses that the bottom supporting ring is arranged at the bottom of the flexible sealing element, so that the flexible sealing element is prevented from being offset and falling downwards, the top pressing ring is arranged at the top of the flexible sealing element, the top of the flexible sealing element is shielded, the top pressing ring is movably connected with the supporting cylinder, the flexible sealing element is deformed upwards when being pressed, the deformation of the flexible sealing element is limited, the flexible sealing element is reset after the expansion of the upper water cooling wall is restored, and the sealing effect is guaranteed.

[0019] 3. The present invention fixes a second ring plate to the top pressure ring and sets a first ring plate at the top of the support cylinder. The second ring plate and the first ring plate are connected by bolts for disassembly and assembly, which can reduce the difficulty of disassembly and assembly, improve the efficiency of maintenance and repair, and provide deformation space and deformation recovery for the flexible seal. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the sealing structure of the water cooler for the semi-waste boiler gasifier of this utility model;

[0021] In the diagram: 1-Water cooler; 2-Support cylinder; 3-Arc plate; 4-Flexible seal; 5-Bottom support ring; 6-Top pressure ring; 7-First circular ring plate; 8-Second circular ring plate; 9-Upper water-cooled wall; a-Bolt; b-Sealing block; c-Disassembly seat. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details such as particular system structures and technologies are provided to facilitate a more thorough understanding of the embodiments of this utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0023] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] refer to Figure 1 This embodiment provides a sealing structure for a water cooler of a semi-waste boiler gasifier, including a support cylinder 2 sleeved on the outside of the water cooler 1, an arc plate 3 sleeved on the outside of the support cylinder 2, and a flexible sealing element 4 disposed between the support cylinder 2 and the arc plate 3, wherein the upper water cooling wall 9 is connected to the arc plate 3.

[0025] In actual use, when the upper water-cooled wall 9 expands due to heat, it drives the arc plate 3 to approach the support cylinder 2. The support cylinder 2 is used to protect the water cooler 1. At the same time, the deformation of the flexible sealing element 4 ensures the sealing effect of the gasifier, allowing the arc plate 3 to slide relative to the support cylinder 2, ensuring the service life of the upper water-cooled wall 9, avoiding damage due to deformation when it expands due to heat, and ensuring the sealing effect, effectively preventing water gas in the furnace from leaking into the interlayer.

[0026] In order to ensure the stability of the connection between the support cylinder 2 and the water cooler 1, the support cylinder 2 is fixedly connected with the water cooler 1.

[0027] Further, the arc-shaped plate 3 is connected with the circumferential wall of the upper water cooling wall 9 through the sealing block b, the curvature of the arc-shaped plate 3 matches the curvature of the upper water cooling wall 9, which improves the tightness of the connection and ensures the reliability of the sealing structure.

[0028] In order to further improve the reliability and sealing effect of the connection between the arc-shaped plate 3 and the upper water cooling wall 9, a sealing block b is arranged on the outer side of the arc-shaped plate 3, the sealing block b is an L-shaped structure, the long side of the sealing block b is connected with the corresponding arc-shaped plate 3, preferably fixedly connected; the short side of the sealing block b extends between the two pipes on the upper water cooling wall 9, and the short side of the sealing block b is fixedly connected with the fin positions on the adjacent two pipes.

[0029] Since the arc-shaped plate 3 will expand with the upper water cooling wall 9 during work, in order to avoid displacement limitation of the arc-shaped plate 3, the number of arc-shaped plates 3 is three, and the central angle of each arc-shaped plate 3 is 120°, and the three arc-shaped plates 3 are evenly arranged on the outer side of the support cylinder 2.

[0030] The flexible sealing element 4 can be selected as a packing, and the flexible sealing element 4 is wound on the outer side of the support cylinder 2.

[0031] Further, in order to protect the flexible sealing element 4 and prevent it from falling off, a bottom support ring 5 is arranged at the bottom of the flexible sealing element 4, the bottom support ring 5 is sleeved on the outer side of the support cylinder 2, and the bottom support ring 5 is preferably fixedly connected with the support cylinder 2, so as to reliably protect the bottom of the flexible sealing element 4.

[0032] The thickness of the bottom support ring 5 is less than the initial thickness of the flexible sealing element 4, so that a displacement gap is formed between the outer wall of the bottom support ring 5 and the inner wall of the arc-shaped plate 3, and the expansion process of the upper water cooling wall 9 is stable and reliable.

[0033] Further, in order to protect the top of the flexible sealing element 4, a top pressing ring 6 is arranged at the top of the flexible sealing element 4, the top pressing ring 6 is preferably movably connected with the support cylinder 2, so that when the flexible sealing element 4 is deformed upwardly under pressure, the top pressing ring 6 can offset upwardly with the flexible sealing element 4, and the top pressing ring 6 is also connected with the support cylinder 2; at the same time, the flexible sealing element 4 can also be restored after the expansion of the upper water cooling wall 9 is eliminated.

[0034] Specifically, the top of the top compression ring 6 is provided with a first circular plate 7, the top of the support cylinder 2 is provided with a second circular plate 8, the first circular plate 7 is located directly above the second circular plate 8, one end of the first circular plate 7 is detachably connected with one end of the second circular plate 8 through the bolt a, the other end of the second circular plate 8 is fixedly connected with the support cylinder 2, and the other end of the first circular plate 7 is fixedly connected with the top compression ring 6, so that the top compression ring 6 and the second circular plate 8 form a cantilever structure, and the flexible sealing element 4 is protected; the thickness of the top compression ring 6 is also less than the initial thickness of the flexible sealing element 4, so as to facilitate the expansion displacement of the upper water-cooled wall 9.

[0035] At the same time, the first circular plate 7 and the second circular plate 8 are connected through the bolt a, so that the first circular plate 7 and the second circular plate 8 are detachable during maintenance and repair, and the operation is simple and convenient; in order to further facilitate the disassembly, a disassembly seat c is preferably arranged on the top end face of the second circular plate 8, a lifting hole is formed in the disassembly seat c, and the maintenance and replacement are facilitated.

[0036] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0037] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0038] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A semi-drum gasifier water cooler sealing structure, characterized in that, The support cylinder (2) is sleeved outside the water cooler (1), the arc-shaped plate (3) is sleeved outside the support cylinder (2), the arc-shaped plate (3) is connected with the upper water cooling wall (9), and the flexible sealing element (4) is located between the support cylinder (2) and the arc-shaped plate (3).

2. The seal structure for a water cooler of a semi-waste pot gasifier according to claim 1, wherein The number of the arc-shaped plates (3) is multiple, multiple arc-shaped plates (3) are arranged at equal intervals around the axis of the support cylinder (2), and multiple arc-shaped plates (3) are all close to the upper water cooling wall (9).

3. The seal structure for a water cooler of a semi-waste pot gasifier according to claim 2, wherein The upper water cooling wall (9) is provided with a sealing block (b), and the arc-shaped plate (3) is sealingly connected with the upper water cooling wall (9) through the sealing block (b).

4. The semi-waste pot gasifier water cooler sealing structure according to claim 3, characterized in that, The outer side of the support cylinder (2) is sleeved with a bottom support ring (5), the bottom support ring (5) is in contact with the bottom of the flexible sealing element (4), and the bottom support ring (5) is located between the support cylinder (2) and the arc-shaped plate (3).

5. The semi-waste boiler gasifier water cooler sealing structure according to claim 4, characterized in that, The bottom support ring (5) is fixedly connected with the support cylinder (2).

6. The semi-waste boiler gasifier water cooler sealing structure according to claim 4, characterized in that, The outer side of the support cylinder (2) is also sleeved with a top pressing ring (6), the top pressing ring (6) is arranged at the top of the flexible sealing element (4), the top pressing ring (6) is located between the support cylinder (2) and the arc-shaped plate (3), and the top pressing ring (6) is movably connected with the support cylinder (2).

7. The semi-waste boiler gasifier water cooler sealing structure according to claim 6, characterized in that, The top of the support cylinder (2) is provided with a first circular ring plate (7), the first circular ring plate (7) is located above the water cooler (1), the top of the top pressing ring (6) is provided with a second circular ring plate (8), the second circular ring plate (8) is located directly above the first circular ring plate (7), and the first circular ring plate (7) is connected with the second circular ring plate (8) through a bolt (a).

8. The semi-waste boiler gasifier water cooler sealing structure according to claim 7, characterized in that, The top of the second circular ring plate (8) is provided with a dismounting seat (c), and the second circular ring plate (8) is fixedly connected with the top pressing ring (6).

9. The semi-waste boiler gasifier water cooler sealing structure according to claim 8, characterized in that, The first circular ring plate (7) is fixedly connected with the support cylinder (2).

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