CN214389525U

CN214389525U - Multi-ring tail gas absorption spray tower

Info

Publication number: CN214389525U
Application number: CN202022906615.4U
Authority: CN
Inventors: 何祚廷
Original assignee: Ya'an Fuhong New Material Co ltd
Current assignee: Ya'an Fuhong New Material Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-10-15
Anticipated expiration: 2030-12-07

Abstract

The utility model provides a polycyclic tail gas absorbs spray column, comprising a tower body, be formed with in the tower body and spray the chamber, the bottom of tower body is constructed with the tail gas entry, the top of tower body is constructed with the tail gas export, it has a plurality of annular shower to spray to be constructed in the chamber, and is a plurality of annular shower follows the direction of height of tower body sets up at the interval in proper order, and is a plurality of annular shower and outside absorption liquid feeding device through connection. The utility model discloses, form multiple spray contact to the tail gas that gets into the tower body inner chamber through a plurality of annular shower that set up along the direction of height interval in the tower body, can make tail gas and absorption liquid fully contact furthest, improve the absorptivity.

Description

Multi-ring tail gas absorption spray tower

Technical Field

The utility model belongs to the technical field of the tail gas treatment, concretely relates to polycyclic tail gas absorbs spray column.

Background

The spray column is the core processing apparatus who handles tail gas in the chemical industry field, it is removed to the specific composition selectivity in the tail gas that previous process flow produced through the absorption liquid that sprays specific properties, current tail gas absorption spray column mostly adopts the mode of constructing a plurality of spray holes on straight tube or single looped pipeline structure, make the absorption liquid of wherein carrying contact with tail gas in spraying column's the inner space by spraying with controllable, realize the absorption of specific composition, realize the processing to tail gas, but present spray column absorption liquid is restricted with gaseous area of contact, the absorptivity remains to be improved.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model is to provide a polycyclic tail gas absorbs spray column, forms multiple spraying contact to the tail gas that gets into the tower body inner chamber through a plurality of annular shower that set up along the direction of height interval in the tower body, can make tail gas and absorption liquid fully contact furthest, improves the absorption rate.

In order to solve the problem, the utility model provides a polycyclic tail gas absorbs spray column, comprising a tower body, be formed with in the tower body and spray the chamber, the bottom of tower body is constructed with the tail gas entry, the top of tower body is constructed with the tail gas export, it has a plurality of annular shower to spray to be constructed in the chamber, and is a plurality of annular shower follows the direction of height of tower body sets up at the interval in proper order, and is a plurality of annular shower and outside absorption liquid feeding device through connection.

Preferably, a plurality of annular shower with the vertical axis coaxial setting of tower body, and a plurality of annular shower's outer ring diameter by the bottom of tower body is to the top end littleer and more.

Preferably, the radial spacing between any adjacent two of the plurality of annular shower pipes, as projected on a horizontal plane, becomes smaller from a radially outer side to an inner side.

Preferably, the external absorption liquid supply device comprises a liquid separation tank, and liquid inlet ends of the plurality of annular spray pipes are connected in the liquid separation tank in a gathering manner.

Preferably, a liquid inlet of the liquid separation tank is connected with a liquid circulating pump, and a liquid inlet of the liquid circulating pump is communicated with the bottom end of the tower body.

Preferably, a plurality of spray hole ring groups are configured on the annular spray pipe, each spray hole ring group comprises a plurality of spray holes uniformly arranged at intervals along the circumferential direction of the annular spray pipe, and the plurality of spray hole ring groups are arranged at the bottom side of the annular spray pipe and are arranged at intervals along the radial direction of the annular spray pipe.

Preferably, the number of the spraying hole ring groups is two, and the two spraying hole ring groups are respectively a first spraying hole ring group and a second spraying hole ring group, and a plurality of spraying holes in the first spraying hole ring group and a plurality of spraying holes in the second spraying hole ring group are arranged in a staggered manner in the radial direction of the annular spraying pipe.

Preferably, the absorption liquid provided by the external absorption liquid supply device is lye.

Preferably, a plurality of filler support pore plates are further arranged in the spraying cavity, and the filler support pore plates are sequentially arranged at intervals along the height direction of the tower body.

Preferably, a plurality of the filler support hole plates and a plurality of the annular spray pipes are alternately arranged in the height direction of the tower body.

The utility model provides a pair of polycyclic tail gas absorbs spray column, through a plurality of that set up along the direction of height interval in the tower body annular shower can form multiple spraying contact to the tail gas that enters into in the tower body to can make tail gas and absorption liquid fully contact furthest, improve the absorption rate of absorption liquid.

Drawings

Fig. 1 is a schematic view of an internal structure of a multi-ring tail gas absorption spray tower according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure in the direction of a-a in FIG. 1;

fig. 3 is a partial schematic view of a ring shower according to an embodiment of the present invention.

The reference numerals are represented as:

1. a tower body; 11. a spray chamber; 12. a tail gas inlet; 13. a tail gas outlet; 2. an annular shower pipe; 21. Spraying a hole ring group; 31. liquid separating tank; 32. a liquid circulation pump; 4. the packing supports the orifice plate.

Detailed Description

Referring to fig. 1 to 3 in combination, according to the embodiment of the utility model, a polycyclic tail gas absorption spray column is provided, including tower body 1, be formed with in the tower body 1 and spray chamber 11, the bottom of tower body 1 is constructed with tail gas entry 12, the top of tower body 1 is constructed with tail gas outlet 13, and the tail gas that the former process produced will be via tail gas entry 12 gets into further follow after spraying the intracavity and forming gas diffusion tail gas outlet 13 discharges spray chamber 11, it has a plurality of annular shower 2, a plurality of to construct in the spray chamber 11 annular shower 2 follows the direction of height of tower body 1 is the interval in proper order and is set up, and is a plurality of annular shower 2 and outside absorption liquid feeding device through connection. Among this technical scheme, through a plurality of along the direction of height interval setting in tower body 1 annular shower 2 can form multiple spraying contact to the tail gas that enters into in the tower body to can make tail gas and absorption liquid fully contact by furthest, improve the absorption rate of absorption liquid. In a specific embodiment, the multi-ring tail gas absorption spray tower is used for absorbing acid components in tail gas, and the absorption liquid provided by the corresponding external absorption liquid supply device is alkali liquid.

In some embodiments, the annular spraying pipes 2 are arranged coaxially with the vertical axis of the tower body 1, and the diameter of the outer ring of the annular spraying pipes 2 decreases from the bottom end to the top end of the tower body 1. In the technical scheme, the annular spraying pipes 2 are arranged in the spraying cavity 11 to form a frustum absorption liquid contact surface in an observation mode, and the contact surface in the shape can be in omnibearing contact with tail gas, so that the absorption rate is further improved. In terms of specific installation, a plurality of annular shower pipes 2 may be detachably connected to the inner wall of the tower 1, for example, by using a plurality of support pipes. Further, the radial distance between any adjacent two of the plurality of annular shower pipes 2 is smaller from the radially outer side to the radially inner side as projected on the horizontal plane.

In some embodiments, the external absorption liquid supply device includes a liquid separating tank 31, liquid inlet ends of the plurality of annular spraying pipes 2 are connected in the liquid separating tank 31 in a gathering manner, on one hand, the liquid separating tank 31 performs a buffer storage function on the absorption liquid, on the other hand, the absorption liquid in the liquid separating tank can be uniformly distributed, so that the amount of the absorption liquid in each annular spraying pipe 2 is reasonably distributed, and the liquid separating tank can be selectively connected with a separate absorption liquid storage tank in a penetrating manner to ensure that the supply amount of the absorption liquid meets the requirement. Further, the liquid inlet of the liquid separation tank 31 is connected with a liquid circulating pump 32, the liquid inlet of the liquid circulating pump 32 is communicated with the bottom end of the tower body 1, and the liquid circulating pump 32 can recycle the absorption liquid falling to the bottom in the tower body 1, so that the cost is reduced, and the energy is saved and the environment is protected.

As a specific embodiment, preferably, a plurality of spray hole ring groups 21 are configured on the annular spray pipe 2, the spray hole ring groups 21 include a plurality of spray holes uniformly spaced along the circumferential direction of the annular spray pipe 2, and the plurality of spray hole ring groups 21 are located at the bottom side of the annular spray pipe 2 and spaced along the radial direction of the annular spray pipe 2 to form different spray angles, so that the absorption liquid is more fully contacted with the tail gas. Specifically, for example, the number of the spray hole ring groups 21 is two, and the two spray hole ring groups are respectively a first spray hole ring group (not referenced in the drawing) and a second spray hole ring group (not referenced in the drawing), and the plurality of spray holes in the first spray hole ring group and the plurality of spray holes in the second spray hole ring group are arranged in a staggered manner in the radial direction of the annular spray pipe 2, for example, the first spray hole ring group is located on the inner side of the second spray hole ring group, wherein the spray direction of each spray hole in the first spray hole ring group is deviated to one side close to the center of the annular spray pipe 2, and the spray direction of each spray hole in the second spray hole ring group is deviated to one side away from the center of the annular spray pipe 2.

In some embodiments, a plurality of filler support pore plates 4 are further disposed in the spraying cavity 11, and the plurality of filler support pore plates 4 are sequentially disposed at intervals along the height direction of the tower body 1, so that different fillers are placed on the filler support pore plates 4 at different heights to absorb and remove different components in the tail gas. Preferably, a plurality of the filler support orifice plates 4 and a plurality of the annular shower pipes 2 are alternately arranged in the height direction of the tower body 1.

In order to verify the practical application effect of the multi-ring tail gas absorption spray tower of the present invention, the inventor adopted the acid HCL in the tail gas as an example to spray the absorption with liquid caustic soda (concentration is not 2.4%) to test, and the following data were obtained:

from the above data, the following can be obtained by detecting the contents of the gas entering the tower and the gas leaving the tower: the absorption rate of acid gas in tail gas is obviously improved, and data shows that the absorption rate is improved to 96.25% from about 85% of the conventional absorption rate.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The multi-ring type tail gas absorption spray tower is characterized by comprising a tower body (1), wherein a spray cavity (11) is formed in the tower body (1), a tail gas inlet (12) is formed at the bottom end of the tower body (1), a tail gas outlet (13) is formed at the top end of the tower body (1), a plurality of annular spray pipes (2) are formed in the spray cavity (11), the annular spray pipes (2) are sequentially arranged at intervals along the height direction of the tower body (1), and the annular spray pipes (2) are communicated with an external absorption liquid supply device; the annular spraying pipe (2) is provided with a plurality of spraying hole ring groups (21), the spraying hole ring groups (21) comprise a plurality of spraying holes which are uniformly arranged along the circumferential direction of the annular spraying pipe (2) at intervals, and the spraying hole ring groups (21) are arranged at the bottom side of the annular spraying pipe (2) and are arranged along the radial direction of the annular spraying pipe (2) at intervals.

2. The multi-ring tail gas absorption spray tower of claim 1, wherein the plurality of ring-shaped spray pipes (2) are coaxially arranged with the vertical axis of the tower body (1), and the outer ring diameter of the plurality of ring-shaped spray pipes (2) is smaller from the bottom end to the top end of the tower body (1).

3. The multi-ring tail gas absorption spray tower according to claim 2, wherein the radial spacing between any adjacent two of the plurality of annular spray pipes (2) is smaller from the radially outer side to the radially inner side as projected on a horizontal plane.

4. The multi-ring tail gas absorption spray tower according to claim 1, wherein the external absorption liquid supply device comprises a liquid separation tank (31), and liquid inlet ends of the plurality of annular spray pipes (2) are connected in the liquid separation tank (31) in a gathering manner.

5. The multi-ring tail gas absorption spray tower of claim 4, wherein a liquid inlet of the liquid separation tank (31) is connected with a liquid circulating pump (32), and a liquid inlet of the liquid circulating pump (32) is communicated with the bottom end of the tower body (1).

6. The multi-ring tail gas absorption spray tower according to claim 1, wherein the number of the spray hole ring sets (21) is two, and the spray holes are respectively a first spray hole ring set and a second spray hole ring set, and the spray holes in the first spray hole ring set and the spray holes in the second spray hole ring set are arranged in a staggered manner in a radial direction of the annular spray pipe (2).

7. The multi-ring tail gas absorption spray tower of claim 1, wherein the absorption liquid provided by the external absorption liquid supply device is lye.

8. The multi-ring tail gas absorption spray tower of claim 1, wherein a plurality of filler support pore plates (4) are further arranged in the spray cavity (11), and the plurality of filler support pore plates (4) are sequentially arranged at intervals along the height direction of the tower body (1).

9. The multi-ring tail gas absorption spray tower according to claim 8, wherein a plurality of the filler support orifice plates (4) and a plurality of the ring-shaped spray pipes (2) are alternately arranged in the height direction of the tower body (1).