Flue gas guiding device of glass fiber reinforced plastic spray tower

Abstract

The utility model provides a flue gas guide device of a glass fiber reinforced plastic spray tower, relates to the technical field of environmental protection equipment, and solves the technical problems that the existing flue gas guide plate of the spray tower is easy to block spray water and the contact area between the spray water and flue gas is reduced. The spiral disc groove is formed in the spray tower and used for guiding flue gas to spirally rise, the spoiler is arranged in the spiral disc groove and used for spoiling the flue gas, and the spiral disc groove further comprises a conical plate used for concentrating the flue gas inwards. Under the condition that the conical plate does not occupy too large horizontal area, the flue gas flow direction is effectively disturbed, the flow stroke is increased, spraying water is prevented from excessively condensing and flowing down, and the contact time and the contact area of the flue gas and the spraying water are increased; the rising flue gas is in full contact with the slurry sprayed by the different spray heads through the different partition plates and does not mainly contact with the slurry sprayed by the middle spray head, so that the utilization rate of the slurry and the absorption rate of the flue gas are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a glass fiber reinforced plastic spray tower smoke guide device. Background Art

[0002] As a simple tower-type gas-liquid mass transfer equipment, the spray tower is equipped with a liquid sprayer on the top, which disperses the liquid into fine droplets and makes the gas contact with the droplets in a countercurrent manner for mass transfer. The advantages of this equipment are simple structure, low cost, and small gas pressure drop. The disadvantages are high power consumption for liquid spraying, a lot of mist and foam entrainment in the outlet gas, and serious gas backmixing in the equipment. It is mostly used for the absorption of soluble gases and can also be used for gas washing.

[0003] The absorption reaction rate of the spray slurry on the flue gas depends on many factors such as the relative speed of the flue gas and the slurry, the effective mass transfer area, the contact time, etc. In order to make the flue gas fully contact with the spray slurry, a multi-layer spray mode is generally adopted in the project, and a large number of nozzles are evenly arranged in each layer of spray. However, in order to prevent the spray slurry from flowing downward along the inner wall of the absorption tower and failing to achieve the atomization absorption effect, and in many projects to prevent the nozzles near the inner wall from directly scouring the inner wall of the absorption tower for a long time and causing wear and tear, the arrangement position of the atomization nozzle in the absorption tower is generally at a certain distance from the inner wall. This results in the spray slurry covering the area close to the inner wall of the absorption tower less than the central area. In this way, a blind area of ​​inefficient flue gas absorption close to the inner wall is formed on the cross-section of the absorption tower. In this blind area of ​​inefficient flue gas absorption, the flue gas cannot be fully absorbed and washed by the spray slurry and is directly discharged out of the absorption tower, greatly reducing the desulfurization efficiency. For acidic gases such as sulfur dioxide, using a spray tower to absorb flue gas can easily produce acidic solutions, causing corrosion to the spray tower. Therefore, for the absorption of some acidic gases, a spray tower made of fiberglass is used.

[0004] For example, the patent with publication number CN104368236A proposes a flue gas absorption tower with gas-liquid bidirectional flow guidance. Through the gas-liquid diversion function of the gas-liquid bidirectional flow guidance device layer, the gas-liquid mass transfer area is effectively increased, the contact area between the flue gas and the spray liquid is increased, and the problem of insufficient local gas-liquid fusion in the flue gas absorption tower is avoided. There is also a desulfurization spray tower with load regulation and flue gas equalization function proposed in the patent with publication number CN101298020A, in which a flue gas diversion ring is set under each layer of absorbent slurry spray device. It has a high-precision load regulation performance, which can effectively reduce the equipment operation cost, and can realize the flue gas diversion control in the tower, so that the flue gas flow is evenly distributed, increase the two-phase turbulence intensity of the flue gas and absorbent slurry, and improve the desulfurization efficiency. However, in order to increase the contact and mass transfer time between the flue gas and the spray slurry, the flue gas diversion device usually changes the direction of the flue gas through a guide plate to increase the flue gas flow. Although the guide plate can effectively guide the flue gas and increase the flue gas flow, it also has a blocking effect on the spray atomized water from top to bottom. The spray water condenses and flows down after being blocked, reducing the contact area between the spray water and the flue gas, which has an adverse effect on the flue gas absorption. Utility Model Content

[0005] The utility model aims to provide a glass fiber reinforced plastic spray tower smoke guide device to solve the technical problem that the existing spray tower smoke guide plate easily blocks the spray water and reduces the contact area between the spray water and the smoke.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] A flue gas guide device for a glass fiber reinforced plastic spray tower comprises a spiral disc groove arranged on the spray tower for guiding the flue gas to spirally rise and a spoiler plate arranged on the spiral disc groove for disturbing the flue gas. The spiral disc groove also comprises a conical plate for concentrating the flue gas inward.

[0008] Preferably, a plurality of groups of spray heads for spraying slurry on the flue gas are spaced apart above the spiral disc groove, and the spray heads are connected to spray pipes for supplying the spray slurry.

[0009] Preferably, the spray pipe also includes a connecting pipe for connecting several groups of spray heads.

[0010] Preferably, a partition plate for separating the smoke and directing the separated smoke to different sprinkler heads is also provided above the spiral disc groove.

[0011] Preferably, the separation plates include a plurality of groups of ring plates for dividing the shower heads into different ring layers and connecting plates for connecting adjacent ring plates and separating the shower heads in the same ring layer.

[0012] Preferably, the spray tower further comprises a packing layer arranged below the spiral disc groove for increasing the contact time between the spray water and the flue gas, and a slurry pool arranged at the bottom for receiving the slurry.

[0013] Preferably, the spray tower also includes a drain outlet for discharging slurry from the slurry pool.

[0014] Preferably, the spray tower further comprises a smoke inlet for introducing smoke and a smoke outlet for exhausting smoke.

[0015] By adopting this technical solution, the spiral disc groove makes the flue gas rise in a spiral manner during the spray tower rising process. At the same time, the conical plate can make the flue gas concentrate and then disperse in the axial direction of the spray tower. The spoiler is used to make the flue gas disturbed in the horizontal direction during the spiral rising process. When the conical plate does not occupy too much horizontal area, the flue gas flow direction is effectively disturbed, the flow stroke is increased, and the spray water will not condense too much and flow down, thereby increasing the contact time and area between the flue gas and the spray water.

[0016] At the same time, partitions are set at the sprinkler heads to facilitate the rising flue gas to fully contact with the slurry sprayed from different sprinkler heads through different partitions, instead of mainly contacting the slurry sprayed from the middle sprinkler head, thereby improving the slurry utilization rate and the absorption rate of flue gas.

[0017] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0018] 1. The utility model effectively disturbs the flow direction of smoke without the conical plate occupying too much horizontal area, increases the flow stroke, and does not cause excessive condensation and flow of spray water, thereby increasing the contact time and area between smoke and spray water;

[0019] 2. The rising flue gas of the utility model fully contacts the slurry sprayed from different spray heads through different partition plates, and does not mainly contact the slurry sprayed from the middle spray head, thereby improving the utilization rate of the slurry and the absorption rate of the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the spray tower structure of the glass fiber reinforced plastic spray tower smoke guide device provided in Example 1 of the utility model;

[0022] Figure 2A schematic top view of the structure of the smoke guide device for a glass fiber reinforced plastic spray tower provided in Example 1 of the utility model;

[0023] Figure 3 A schematic diagram of the top view of the partition plate of the smoke guide device of the glass fiber reinforced plastic spray tower provided in Example 2 of the utility model;

[0024] Icons: 1. Spray tower; 11. Flue gas inlet; 12. Drain outlet; 13. Spray pipe; 14. Flue gas outlet; 15. Slurry pool; 2. Packing layer; 3. Spiral disc groove; 31. Spoiler; 32. Conical plate; 4. Partition plate; 41. Connecting plate; 42. Ring plate; 5. Spray head; 51. Connecting pipe. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1

[0031] A flue gas guide device for a glass fiber reinforced plastic spray tower 1 includes a spiral disc groove 3 arranged on the spray tower 1 for guiding the flue gas to spirally rise and a spoiler 31 arranged on the spiral disc groove 3 for disturbing the flue gas. The spiral disc groove 3 also includes a conical plate 32 for concentrating the flue gas inward.

[0032] In this embodiment, a plurality of groups of spray heads 5 for spraying slurry on the flue gas are arranged at intervals above the spiral disc groove 3, and the spray heads 5 are connected to a spray pipe 13 for supplying the spray slurry.

[0033] In this embodiment, the spray tower 1 further includes a packing layer 2 disposed below the spiral disc groove 3 for increasing the contact time between the spray water and the flue gas, and a slurry pool 15 disposed at the bottom for receiving the slurry.

[0034] In this embodiment, the spray tower 1 further includes a drain port 12 for discharging the slurry from the slurry pool 15 .

[0035] In this embodiment, the spray tower 1 further includes a smoke inlet 11 for introducing smoke and a smoke outlet 14 for exhausting smoke.

[0036] Working principle and usage:

[0037] During operation, the spiral disc groove 3 causes the flue gas to spirally rise in the spray tower 1. At the same time, the conical plate can concentrate the flue gas in the axial direction of the spray tower 1 and then disperse it. The spoiler 31 is used to cause the flue gas to be disturbed in the horizontal direction during the spiral rise. When the conical plate does not occupy too much horizontal area, the flue gas flow direction is effectively disturbed, the flow stroke is increased, and the spray water will not condense too much and flow down, thereby increasing the contact time and area between the flue gas and the spray water.

[0038] Example 2

[0039] The only difference between this embodiment and the first embodiment is that, in this embodiment, the spray pipe 13 further includes a connecting pipe 51 for connecting a plurality of groups of spray heads 5 .

[0040] In this embodiment, a partition plate 4 is further provided above the spiral disc groove 3 for separating the smoke and directing the separated smoke to different sprinkler heads 5 .

[0041] In this embodiment, the partition plates 4 include a plurality of groups of ring plates 42 for dividing the shower heads 5 into different ring layers and connecting plates 41 for connecting adjacent ring plates 42 and separating the shower heads 5 in the same ring layer.

[0042] Working principle and usage:

[0043] A partition plate 4 is provided at the spray head 5 to facilitate the rising flue gas to fully contact with the slurry sprayed from different spray heads 5 through different partition plates 4, instead of mainly contacting the slurry sprayed from the middle spray head 5, thereby improving the slurry utilization rate and the absorption rate of flue gas.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A glass fiber reinforced plastic spray tower smoke guide device, characterized in that: The invention comprises a spiral disc groove (3) arranged on a spray tower (1) for guiding smoke to spirally rise, and a spoiler plate (31) arranged on the spiral disc groove (3) for spoiling the smoke. The spiral disc groove (3) further comprises a conical plate (32) for concentrating the smoke inward.

2. A glass fiber reinforced plastic spray tower smoke guide device according to claim 1, characterized in that: A plurality of groups of spray heads (5) for spraying slurry on the flue gas are arranged at intervals above the spiral disc groove (3); the spray heads (5) are connected to a spray pipe (13) for supplying the spray slurry.

3. A glass fiber reinforced plastic spray tower smoke guide device according to claim 2, characterized in that: The spray pipe (13) also includes a connecting pipe (51) for connecting a plurality of groups of spray heads (5).

4. A glass fiber reinforced plastic spray tower smoke guide device according to claim 2 or 3, characterized in that: A partition plate (4) is also provided above the spiral disc groove (3) for separating the smoke and directing the separated smoke to different spray heads (5).

5. A glass fiber reinforced plastic spray tower smoke guide device according to claim 4, characterized in that: The partition plates (4) include a plurality of groups of ring plates (42) for dividing the shower heads (5) into different ring layers, and connecting plates (41) for connecting adjacent ring plates (42) and separating the shower heads (5) in the same ring layer.

6. A glass fiber reinforced plastic spray tower smoke guide device according to any one of claims 1 to 3 and 5, characterized in that: The spray tower (1) also includes a packing layer (2) arranged below the spiral disc groove (3) for increasing the contact time between the spray water and the flue gas, and a slurry pool (15) arranged at the bottom for receiving slurry.

7. A glass fiber reinforced plastic spray tower smoke guide device according to claim 6, characterized in that: The spray tower (1) also includes a drain port (12) for discharging slurry from the slurry pool (15).

8. A glass fiber reinforced plastic spray tower smoke guide device according to any one of claims 1-3, 5 and 7, characterized in that: The spray tower (1) further comprises a smoke inlet (11) for introducing smoke and a smoke outlet (14) for discharging smoke.

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