Top liquid collecting device of glass fiber reinforced plastic inner cylinder chimney

Abstract

The utility model provides a top liquid collecting device of a glass fiber reinforced plastic inner cylinder chimney, which is applied to the technical field of steel chimneys, and is characterized by comprising a flanging structure arranged at the top of an inner cylinder and assembled on an outer cylinder, a liquid collecting tank is formed between the flanging structure and the inner cylinder, a liquid storage box is arranged on the inner cylinder below the liquid collecting tank, a drainage pipe with one end connected with the liquid collecting tank and the other end connected with the liquid storage box is arranged on the inner cylinder, and the drainage pipe is fixed on the inner cylinder through a connecting piece; the device has the technical effects that the liquid collecting tank is arranged at the top of the inner barrel, so that condensed acid liquid in top flue gas can be accumulated through the liquid collecting tank; the liquid collecting tank is connected with a drain pipe, the bottom of the drain pipe is connected with a liquid storage box, and acid liquid accumulated in the liquid collecting tank flows into the liquid storage box through the drain pipe; acid liquid is prevented from flowing downwards along the periphery of the chimney inner cylinder to corrode the inner wall of the cylinder, and the service life of the chimney is prolonged.

Description

A liquid collection device at the top of a fiberglass inner chimney. Technical Field

[0001] This utility model relates to the field of steel chimney technology, and in particular to a liquid collection device at the top of a fiberglass inner cylinder chimney. Background Technology

[0002] The temperature of flue gas in wet desulfurization is generally between 40-50 degrees Celsius, and it is in a highly saturated state, while being lower than the dew point temperature of the flue gas. Condensation occurs in humid environments. Considering corrosion resistance and economic performance, fiberglass reinforced plastic (FRP) inner cylinders offer a high cost-performance ratio. Therefore, for sleeve chimneys used in wet desulfurization of low-temperature wet flue gas, FRP is the industry's first choice for corrosion protection of the inner cylinder.

[0003] However, as the flue gas rises, its temperature gradually decreases. When it is discharged into the relatively cold atmosphere at the outlet, the flue gas cools down, and condensate accumulates around the inner wall of the top cylinder. Acid will flow down the inner wall of the chimney, aggravating the corrosion of the inner cylinder. Summary of the Invention

[0004] The purpose of this invention is to provide a liquid collection device at the top of a fiberglass inner cylinder chimney, which has the advantage of preventing acid from flowing down around the inner cylinder and corroding the inner wall of the cylinder.

[0005] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0006] A liquid collection device at the top of a fiberglass inner cylinder chimney includes a flange structure disposed at the top of the inner cylinder and assembled on the outer cylinder.

[0007] A liquid collection trough is formed between the flanged structure and the inner cylinder. A liquid storage box is provided on the inner cylinder below the liquid collection trough. A drain pipe is provided on the inner cylinder with one end connected to the liquid collection trough and the other end connected to the liquid storage box. The drain pipe is fixed to the inner cylinder by a connector.

[0008] In one embodiment of this utility model, the top of the outer cylinder is integrally formed with a tapered section;

[0009] The diameter of the constricted section is smaller than the diameter of the outer cylinder, and the diameter of the constricted section is larger than the diameter of the inner cylinder.

[0010] In one embodiment of this utility model, a plurality of guide round steel bars are provided on the outer wall of the constriction section.

[0011] In one embodiment of the present invention, the flange structure includes an upper flange integrally formed with the inner cylinder and a sleeve section integrally formed with the upper flange and sleeved on the closing section.

[0012] A liquid collection trough is formed between the upper flange and the inner cylinder.

[0013] In one embodiment of the present invention, the upper flange includes a flange section and a connecting ring plate connecting the flange section and the inner cylinder.

[0014] In one embodiment of this utility model, the connecting ring plate is inclined toward the side of the drain pipe opening.

[0015] In one embodiment of the present invention, a drain hole is provided on the upper side wall of the liquid storage box.

[0016] In one embodiment of this utility model, the inner cylinder, the flanged structure, the liquid storage box, the drain pipe, and the connecting parts are all made of fiberglass.

[0017] As described above, the liquid collection device at the top of the fiberglass inner chimney of this utility model has the following beneficial effects:

[0018] By installing a collection tank at the top of the inner cylinder, the condensed acid liquid in the flue gas at the top can be collected through the collection tank. The collection tank is connected to a drain pipe, and the bottom of the drain pipe is connected to a storage box. The acid liquid accumulated in the collection tank then flows into the storage box through the drain pipe. A drain hole is opened on the upper side wall of the storage box. When the amount of acid liquid in the storage box reaches a certain height, the acid liquid overflows the drain hole and drips vertically into the chimney, and is then discharged through the water pipe at the bottom of the chimney. This prevents the acid liquid from flowing down around the inner cylinder of the chimney, corroding the inner wall of the cylinder, and improving the service life of the chimney. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 is a top view of the overall structure of an embodiment of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the top of the outer cylinder according to an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the connection relationship between the inner cylinder and the flange structure in an embodiment of this utility model.

[0023] Reference numerals: 1. Outer cylinder; 2. Inner cylinder; 3. Flanged structure; 4. Liquid collection tank; 5. Liquid storage box; 6. Drain pipe; 7. Connector; 8. Closing section; 9. Guide round steel; 10. Upper flange; 11. Sleeve section; 12. Flanged section; 13. Connecting ring plate. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0025] Please refer to Figures 1 to 4. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0026] Please refer to Figure 1. This utility model provides a top liquid collection device for a fiberglass inner cylinder chimney, including a flange structure 3 disposed on the top of the inner cylinder 2 and assembled on the outer cylinder 1.

[0027] Please refer to Figure 3, where the top of the outer cylinder 1 is integrally formed with a constriction section 8. The diameter of the constriction section 8 is smaller than the diameter of the outer cylinder 1 and larger than the diameter of the inner cylinder 2, so as to facilitate the installation of the flange structure 3. Several guide round steels 9 are welded on the outer wall of the constriction section 8. The guide round steels 9 are evenly distributed along the outer wall of the constriction section 8, so as to facilitate the guiding function when the flange structure 3 is assembled on the constriction section 8.

[0028] Please refer to Figures 1, 2 and 4. The flange structure 3 includes an upper flange 10 integrally formed with the inner cylinder 2 and a sleeve section 11 integrally formed with the upper flange 10 and sleeved on the closing section 8. The inner wall of the sleeve section 11 is in contact with the guide round steel 9.

[0029] The upper flange 10 and the inner cylinder 2 form a liquid collection tank 4, which is used to collect the acid liquid condensed at the top of the chimney. A liquid storage box 5 is provided on the inner wall of the inner cylinder 2 below the liquid collection tank 4. A drain pipe 6 is provided on the inner cylinder 2 with one end connected to the liquid collection tank 4 and the other end connected to the liquid storage box 5. The drain pipe 6 is fixed to the inner wall of the inner cylinder 2 by a connector 7.

[0030] A drain hole is provided on the upper side wall of the liquid storage box 5. When the acid liquid level exceeds the drain hole, the acid liquid will be automatically discharged to avoid overloading of the liquid storage box 5. The acid liquid overflows the drain hole and drips vertically into the chimney, and is then discharged through the water pipe at the bottom of the chimney, which prevents the acid liquid from flowing down around the inner wall of the chimney 2 and corroding the inner wall of the cylinder.

[0031] Please refer to Figure 4. The upper flange 10 includes a flange section 12 and a connecting ring plate 13 that connects the flange section 12 and the inner cylinder 2. The flange section 12 is coaxially arranged with the inner cylinder 2, and the upper end face of the flange section 12 is higher than the upper end face of the inner cylinder 2. One end of the connecting ring plate 13 is connected to the bottom of the flange section 12, and the other end is connected to the outer wall of the inner cylinder 2. The sleeve section 11 is connected to the connecting ring plate 13. The connecting ring plate 13 is inclined towards the opening of the drain pipe 6 so that the condensate can flow smoothly into the drain pipe 6 and avoid liquid accumulation.

[0032] In this embodiment, the inner cylinder 2, the flanged structure 3, the liquid storage box 5, the drain pipe 6, and the connector 7 are all made of fiberglass to ensure corrosion resistance.

[0033] Brief instructions for use:

[0034] 1. The liquid collection tank 4 consists of the top of the inner cylinder 2, the connecting ring plate 13, and the flanged section 12, which are formed by hand lay-up or integral winding of fiberglass.

[0035] 2. The upper end of the drain pipe 6 is connected to the inner cylinder 2 by hand lay-up or integral winding, and is located at the lowest point of the slope of the connecting ring plate 13, which is conducive to drainage;

[0036] 3. The connector 7 is a strip of fiberglass that is hand-laid or integrally wound with the drain pipe 6 and the inner cylinder 2, and is used to fix the drain pipe 6 to the inner wall of the inner cylinder 2.

[0037] 4. The liquid storage box 5 and the inner cylinder 2 are formed by hand lay-up or integral winding. At the same time, a drain hole is opened on the upper side wall of the liquid storage box 5. When the amount of acid in the liquid storage box 5 reaches a certain height, the acid overflows the drain hole and drips vertically into the chimney, onto the water accumulation plate at the bottom of the chimney, and then is discharged through the water pipe at the bottom of the chimney, thus preventing the acid from flowing down around the inner cylinder 2 of the chimney and corroding the inner wall of the cylinder.

[0038] 5. The sleeve section 11 and the connecting ring plate 13 are formed by hand lay-up or integral winding to prevent the plume from washing down and corroding the outer cylinder 1.

[0039] In summary, this invention, by setting a liquid collection tank 4 at the top of the inner cylinder 2, allows the condensed acid liquid in the flue gas at the top to accumulate through the liquid collection tank 4. The liquid collection tank 4 is connected to a drain pipe 6, and the bottom of the drain pipe 6 is connected to a storage box 5. The acid liquid accumulated in the liquid collection tank 4 then flows into the storage box 5 through the drain pipe 6. A drain hole is opened on the upper side wall of the storage box 5. When the amount of acid liquid in the storage box 5 reaches a certain height, the acid liquid overflows the drain hole and drips vertically into the chimney, and is then discharged through the water pipe at the bottom of the chimney. This prevents the acid liquid from flowing down around the inner cylinder 2 of the chimney, corroding the inner wall of the cylinder, and improves the service life of the chimney. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A liquid collection device at the top of a fiberglass inner chimney, characterized in that: It includes a flange structure (3) set on the top of the inner cylinder (2) and assembled on the outer cylinder (1); a liquid collection tank (4) is formed between the flange structure (3) and the inner cylinder (2); a liquid storage box (5) is provided on the inner cylinder (2) below the liquid collection tank (4); a drain pipe (6) is provided on the inner cylinder (2) with one end connected to the liquid collection tank (4) and the other end connected to the liquid storage box (5); the drain pipe (6) is fixed on the inner cylinder (2) by a connector (7).

2. The top liquid collection device for a fiberglass inner chimney according to claim 1, characterized in that: The top of the outer cylinder (1) is integrally formed with a constriction section (8); the diameter of the constriction section (8) is smaller than the diameter of the outer cylinder (1), and the diameter of the constriction section (8) is larger than the diameter of the inner cylinder (2).

3. The top liquid collection device for a fiberglass inner chimney according to claim 2, characterized in that: Several guide round steel bars (9) are provided on the outer wall of the closing section (8).

4. The top liquid collection device for a fiberglass inner chimney according to claim 2, characterized in that: The flange structure (3) includes an upper flange (10) integrally formed with the inner cylinder (2) and a sleeve section (11) integrally formed with the upper flange (10) and sleeved on the closing section (8); a liquid collection groove (4) is formed between the upper flange (10) and the inner cylinder (2).

5. The top liquid collection device for a fiberglass inner chimney according to claim 4, characterized in that: The upper flange (10) includes a flange section (12) and a connecting ring plate (13) that connects the flange section (12) and the inner cylinder (2).

6. The top liquid collection device of a fiberglass inner chimney according to claim 5, characterized in that: The connecting ring plate (13) is inclined toward the opening of the drain pipe (6).

7. The top liquid collection device of a fiberglass inner chimney according to claim 1, characterized in that: A drain hole is provided on the upper side wall of the liquid storage box (5).

8. The top liquid collection device for a fiberglass inner chimney according to claim 1, characterized in that: The inner cylinder (2), the flange structure (3), the liquid storage box (5), the drain pipe (6), and the connector (7) are all made of fiberglass.

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