[go: up one dir, main page]

CN110280112B - Exhaust gas treatment device - Google Patents

Exhaust gas treatment device Download PDF

Info

Publication number
CN110280112B
CN110280112B CN201910159452.7A CN201910159452A CN110280112B CN 110280112 B CN110280112 B CN 110280112B CN 201910159452 A CN201910159452 A CN 201910159452A CN 110280112 B CN110280112 B CN 110280112B
Authority
CN
China
Prior art keywords
exhaust gas
cleaning liquid
absorption tower
main body
peripheral surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201910159452.7A
Other languages
Chinese (zh)
Other versions
CN110280112A (en
Inventor
伊藤孝树
米田次郎
永山圭宪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of CN110280112A publication Critical patent/CN110280112A/en
Application granted granted Critical
Publication of CN110280112B publication Critical patent/CN110280112B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B01D47/063—Spray cleaning with two or more jets impinging against each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B01D53/185—Liquid distributors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

本发明提供提高清洗液吸收废气中的有害成分的吸收效率而能够缩短处理时间、且能够使包括吸收塔等的废气处理装置变得紧凑的废气处理装置。一实施方式所涉及的废气处理装置通过使废气与清洗液接触而将所述废气中包含的有害成分吸收去除，其包括：吸收塔主体，其形成有内部空间；喷雾部，其向所述内部空间内呈雾状喷射所述清洗液；以及废气导入部，其将所述废气以在所述内部空间内进行回旋的方式导入，在所述吸收塔主体的面朝所述内部空间的内周面形成有凹凸。

Figure 201910159452

The present invention provides an exhaust gas treatment device that can shorten the treatment time by improving the absorption efficiency of a cleaning solution to absorb harmful components in exhaust gas, and can make an exhaust gas treatment device including an absorption tower and the like compact. The exhaust gas treatment apparatus according to one embodiment includes: an absorption tower main body having an internal space formed therein; spraying the cleaning liquid in a mist form in the space; and a waste gas introduction part for introducing the waste gas in a swirling manner in the inner space, on the inner circumference of the absorption tower main body facing the inner space The surface is formed with concavities and convexities.

Figure 201910159452

Description

Exhaust gas treatment device
Technical Field
The present invention relates to an exhaust gas treatment device.
Background
As a means for absorbing SO in exhaust gas discharged from an internal combustion engine or the like by a cleaning liquid such as seawaterXAs a removal device for absorbing and removing harmful components, an exhaust gas treatment device using a cyclone scrubber is known (for example, patent document 1).
In this type of exhaust gas treatment apparatus, a cleaning liquid such as seawater is sprayed into the interior of the absorption tower in the form of a mist, and the exhaust gas is allowed to pass from the bottom of the absorption tower to the top and react with the cleaning liquid, thereby removing harmful components in the exhaust gas. Therefore, as one of means for improving the removal rate of the harmful components, a method of improving the contact between the exhaust gas and the cleaning liquid is conceivable. Patent document 1 describes the following method: in the absorption tower, the exhaust gas is spirally swirled, and a cleaning liquid spraying nozzle pipe is arranged in the exhaust gas flow path to prevent the exhaust gas from straightly advancing in the height direction, thereby prolonging the contact time of the exhaust gas and the cleaning liquid and improving the cleaning efficiency.
Prior art documents
Patent document
Patent document 1: japanese patent laid-open publication No. 2016-155075
Problems to be solved by the invention
By improving the cleaning efficiency against harmful components contained in the exhaust gas, the treatment time of the exhaust gas can be shortened, and the exhaust gas treatment device including the absorption tower and the like can be made compact. Therefore, it is desired to further improve the cleaning efficiency.
Disclosure of Invention
An object of one embodiment is to improve the absorption efficiency of a cleaning liquid with respect to harmful components in exhaust gas, thereby shortening the treatment time and making an exhaust gas treatment device including an absorption tower and the like compact.
Means for solving the problems
(1) An exhaust gas treatment device according to an aspect of the present invention is an exhaust gas treatment device for absorbing and removing harmful components contained in exhaust gas by bringing the exhaust gas into contact with a cleaning liquid, the exhaust gas treatment device including:
an absorption tower main body having an internal space formed therein;
a spray unit that sprays the cleaning liquid into the internal space in a mist form; and
an exhaust gas introduction portion that introduces the exhaust gas so that the exhaust gas swirls in the internal space,
an inner peripheral surface of the absorber main body facing the internal space is formed with projections and recesses.
According to the configuration of the above (1), the exhaust gas introduced from the exhaust gas introduction portion into the internal space of the absorber main body swirls in the internal space, and thus flows while being biased toward the inner peripheral surface of the internal space. By forming the irregularities on the inner peripheral surface of the absorber main body, the contact area (hereinafter, also simply referred to as "contact area") between the cleaning liquid along the inner peripheral surface and the exhaust gas increases. This improves the contact between the cleaning liquid and the exhaust gas, and therefore, the removal efficiency of harmful components in the exhaust gas (hereinafter also simply referred to as "cleaning efficiency") can be improved. In addition, since the cleaning efficiency is improved, the treatment time of the exhaust gas can be shortened, and the exhaust gas treatment apparatus including the absorption tower and the like can be made compact.
Further, the contact area can be increased by a simple means without additionally providing a device requiring driving force and without providing any structure in the internal space of the absorber main body.
(2) In one aspect, the structure of (1) is based on, wherein,
the exhaust gas introduction part is provided at a lower portion of the absorption tower main body, and an exhaust gas discharge part is provided at an uppermost portion of the absorption tower main body, the exhaust gas introduced from the exhaust gas introduction part rises while swirling in the internal space,
the irregularities are formed on the inner peripheral surface for forming a liquid film of the cleaning liquid sprayed in a mist form from the spray part.
According to the configuration of the above (2), since the irregularities are formed on the inner peripheral surface of the absorption tower for forming the liquid film of the cleaning liquid sprayed from the spraying portion, the contact area between the cleaning liquid along the inner peripheral surface and the exhaust gas can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
(3) In one aspect, the structure of (1) or (2) is based on, wherein,
the mist eliminator is provided in the internal space above the spraying section, the inner peripheral surface on which the projections and recesses are formed, and the exhaust gas introduction section.
According to the configuration of the above (3), the mist (liquid component) of the cleaning liquid in which the harmful component is absorbed from the exhaust gas can be removed by the demister provided at the most downstream side of the exhaust gas rising in the absorption tower main body, and therefore, only the purified exhaust gas can be discharged to the outside.
(4) In one aspect, the structure according to any one of (1) to (3), wherein,
the unevenness includes one or more grooves formed along the circumferential direction of the absorber main body and extending over the entire circumferential area of the inner circumferential surface when viewed in the axial direction of the absorber main body.
According to the configuration of the above (4), since the unevenness includes one or more grooves extending along the circumferential direction of the absorber main body over the entire circumference of the inner circumferential surface, the contact area of the cleaning liquid along the inner circumferential surface with the exhaust gas can be increased, and thereby the cleaning efficiency of the exhaust gas can be improved.
(5) In one aspect, the structure according to any one of (1) to (3), wherein,
the unevenness includes one or more grooves formed along the axial direction of the absorber main body and provided over the entire circumferential area of the inner circumferential surface when viewed in the axial direction of the absorber main body.
According to the configuration of the above (5), since the unevenness includes one or more grooves formed along the axial direction of the absorber main body and provided over the entire circumference of the inner circumferential surface, the contact area between the cleaning liquid along the inner circumferential surface and the exhaust gas can be increased, and thus the cleaning efficiency of the exhaust gas can be improved.
(6) In one aspect, the structure according to any one of (1) to (3), wherein,
the unevenness includes one or more spiral grooves that are provided over the entire circumferential area of the inner circumferential surface and that are formed spirally on the inner circumferential surface.
According to the configuration of the above (6), since the unevenness includes one or more spiral grooves formed in the entire circumferential region of the inner circumferential surface of the absorption tower main body, the contact area between the cleaning liquid along the inner circumferential surface and the exhaust gas can be increased, and thereby the cleaning efficiency of the exhaust gas can be improved. In addition, the spiral groove is easy to form.
When the spiral groove is formed in the same direction as the swirling direction of the exhaust gas, the decay of the swirl can be reduced as compared with the case where the spiral groove is formed in a direction different from the swirling direction of the exhaust gas.
(7) In one aspect, the structure according to any one of (1) to (3), wherein,
the unevenness includes a plurality of first protrusions that are dispersedly formed on the inner peripheral surface and that are provided over an entire area in a circumferential direction of the inner peripheral surface when viewed in an axial direction of the absorption tower body.
According to the configuration of the above (7), since the concave-convex portion includes the first convex portion, a contact area where the cleaning liquid along the inner peripheral surface contacts the exhaust gas can be increased, and thereby the cleaning efficiency of the exhaust gas can be improved.
(8) In one aspect, the structure according to any one of (1) to (7), wherein,
the waste gas introducing part is composed of a waste gas introducing pipe connected with the absorption tower main body,
the exhaust gas introduction pipe comprises a straight-line-shaped straight pipe part which is arranged at a connecting part of the exhaust gas introduction pipe and the absorption tower main body,
the straight tube portion has a plurality of second protrusions dispersedly arranged on an inner peripheral surface of the straight tube portion.
According to the structure of the above (8), since the plurality of second convex portions are provided in a dispersed manner on the inner peripheral surface of the straight tube portion, the drift of the exhaust gas flowing through the straight tube portion can be suppressed. Accordingly, since the exhaust gas can be introduced into the absorption tower main body while suppressing variation in concentration distribution and flow velocity distribution of the harmful components contained in the exhaust gas flowing through the straight pipe portion, the contact between the exhaust gas and the cleaning liquid in the internal space of the absorption tower main body can be improved, and the cleaning efficiency of the exhaust gas can be improved.
(9) In one aspect, the structure of (7) is based on, wherein,
the spraying portion is provided to each of the plurality of first convex portions.
According to the configuration of the above (9), since the mist spray part is provided in the first convex part provided in the inner peripheral surface of the absorption tower main body, it is not necessary to provide the mist spray part in the central part of the inner space of the absorption tower main body. This can increase the space for bringing the cleaning liquid into contact with the exhaust gas, and therefore, the contact between the exhaust gas and the cleaning liquid can be improved, and the cleaning efficiency of the exhaust gas can be improved.
When the exhaust gas swirls in the internal space of the absorber main body, the exhaust gas is deviated toward the inner circumferential surface side. Therefore, if the cleaning liquid discharge port of the spray portion provided in the first projecting portion is directed toward the inner peripheral surface side and the cleaning liquid is densely spread toward the inner peripheral surface side, a large amount of cleaning liquid can be discharged to a region with a large amount of exhaust gas, and therefore, the cleaning efficiency can be improved.
(10) In one aspect, the structure of (9) is based on, wherein,
the spray unit is configured to spray the cleaning liquid in a mist form from each of the plurality of first protrusions toward a swirling direction of the exhaust gas.
The swirling force of the exhaust gas is attenuated by the contact of the cleaning liquid with the exhaust gas in the internal space of the absorption tower main body. According to the configuration of the above (10), the exhaust gas can be reduced in attenuation by spraying the cleaning liquid in the form of mist from the first convex portion toward the swirling direction of the exhaust gas. This improves the contact between the exhaust gas and the cleaning liquid, and improves the cleaning efficiency of the exhaust gas.
(11) In one aspect, the structure according to any one of (1) to (8), wherein,
the spraying part includes:
a main tube extending along a central axis of the absorption tower body within the interior space;
one or more branch pipes extending from the main pipe toward the inner peripheral surface; and
and a spray nozzle for spraying the cleaning liquid supplied from the branch pipe.
According to the configuration of the above (11), the spray nozzle sprays the cleaning liquid from the branch pipe toward the inner peripheral surface of the absorption tower main body, so that the cleaning liquid can be uniformly sprayed into the inner space, and the cleaning liquid film can be uniformly formed over the entire circumferential area of the inner peripheral surface. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
(12) In one aspect, the structure according to any one of (1) to (8), wherein,
the spraying part is formed in the inner space above the inner peripheral surface where the concave-convex part is formed and the exhaust gas introduction part,
the spray unit includes a nozzle pipe to which the cleaning liquid is supplied, which extends along a cross section of the absorption tower main body, and in which a plurality of nozzles are arranged in a dispersed manner.
According to the configuration of the above (12), since the nozzle pipe extends in the cross-sectional direction of the absorption tower main body at the uppermost portion of the absorption tower main body, when the cleaning liquid is sprayed from the nozzle, the sprayed cleaning liquid descends by gravity and is uniformly distributed to the lower internal space. Further, since there is no need to provide a spray portion in the internal space, the contact space between the exhaust gas and the cleaning liquid can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas. In addition, the spraying section can be configured simply by providing only the nozzle pipe.
(13) In one aspect, the structure of any one of (7), (9) or (10) is used as a basis, wherein,
the first convex portion has a polygonal pyramid shape, a conical shape, a frustum shape, a prismatic shape, a cylindrical shape, a spherical shape, an ellipsoidal shape, a three-dimensional shape having a half-moon shape in cross section, or a three-dimensional shape having a waveform in cross section.
According to the configuration of the above (13), since the first convex portion provided on the inner peripheral surface of the absorber main body has the above-described shape, the contact area between the cleaning liquid along the inner peripheral surface and the exhaust gas can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
(14) In one aspect, the structure of (8) is based on, wherein,
the second convex portion has a polygonal pyramid shape, a conical shape, a frustum shape, a prismatic shape, a cylindrical shape, a spherical shape, an ellipsoidal shape, a three-dimensional shape having a half-moon shape in cross section, or a three-dimensional shape having a waveform in cross section.
According to the structure of the above (14), since the second convex portion provided on the inner peripheral surface of the straight pipe portion of the exhaust gas introduction pipe has the above-described shape, the drift of the exhaust gas flowing through the straight pipe portion can be effectively suppressed. Accordingly, since a uniform flow of the exhaust gas can be introduced into the internal space of the absorption tower main body, the contact between the exhaust gas and the cleaning liquid in the absorption tower main body can be improved, and the cleaning efficiency of the exhaust gas can be improved.
Effects of the invention
According to some aspects, the cleaning efficiency of the cleaning liquid for absorbing the exhaust gas can be improved, whereby the treatment time of the exhaust gas can be shortened, and the exhaust gas treatment device including the absorption tower can be made compact.
Drawings
Fig. 1 is a longitudinal sectional view schematically showing an exhaust gas treatment device according to an embodiment.
Fig. 2 is a longitudinal sectional view schematically showing an exhaust gas treatment device according to an embodiment.
Fig. 3 is a cross-sectional view taken along line a-a in fig. 1.
Fig. 4 is a longitudinal sectional view schematically showing a part of an absorption tower main body according to an embodiment.
Fig. 5 is a perspective view schematically showing the unevenness according to the embodiment.
Fig. 6 is a perspective view schematically showing the unevenness according to the embodiment.
Fig. 7 is a cross-sectional view schematically showing an exhaust gas treatment device according to an embodiment.
Fig. 8 (a), (B), and (C) are perspective views showing the unevenness according to some embodiments.
Fig. 9 (a) and (B) are perspective views showing the unevenness according to some embodiments.
Fig. 10 (a) and (B) are perspective views showing the unevenness according to some embodiments.
Fig. 11 is a perspective view showing the unevenness according to the embodiment.
Fig. 12 (a) and (B) are perspective views showing the unevenness according to some embodiments.
Fig. 13 (a) and (B) are perspective views showing the unevenness according to some embodiments.
Description of the reference numerals
10(10A, 10B) an exhaust gas treatment device;
12 an absorption tower main body;
12a inner peripheral surface;
14(14a, 14b, 14c) a spraying section;
16 an exhaust gas introduction part;
18(18a, 18b, 18c, 18 d);
20 an exhaust gas discharge part;
21 an absorption part;
22 a demister;
a 23 liquid discharge path;
24. 26 grooves;
28 helical grooves;
30 convex portions (first convex portions);
32 straight tube portions;
34 convex parts (second convex parts);
40 a main pipe;
42 branch pipes;
44 a spray nozzle;
46 a nozzle tube;
48 spray nozzles;
50 a cleaning liquid supply pipe;
52. 54 cross-section;
a Cs cleaning solution;
a, axial direction;
e, waste gas;
fs swirling flow;
s inner space.
Detailed Description
Hereinafter, several embodiments of the present invention will be described with reference to the drawings. The dimensions, materials, shapes, relative arrangements, and the like of the constituent members described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention to these, but are merely illustrative examples.
For example, expressions such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "central", "concentric", or "coaxial" indicating relative or absolute arrangements indicate not only such an arrangement strictly, but also a state in which the arrangement is relatively displaced by a tolerance or an angle or a distance to the extent that the same function can be obtained.
For example, expressions indicating states of equality such as "identical", "equal", and "homogeneous" indicate not only states of strict equality but also states of tolerance or difference in degree to obtain the same function.
For example, the expressions indicating the shape such as a rectangular shape and a cylindrical shape indicate not only a shape such as a rectangular shape and a cylindrical shape which are geometrically strict but also a shape including a concave and convex portion, a chamfered portion, and the like within a range where the same effect can be obtained.
On the other hand, expressions such as "including", "provided", "including", or "having" one constituent element are not exclusive expressions which exclude the presence of other constituent elements.
Fig. 1 and 2 are schematic vertical sectional views illustrating an exhaust gas treatment device 10(10A, 10B) according to some embodiments.
In fig. 1 and 2, an internal space s is formed inside the absorber main body 12, and a spray unit 14(14a, 14b) for spraying the cleaning liquid Cs is provided in the internal space s. Further, exhaust gas e discharged from, for example, an internal combustion engine (not shown) is introduced into the internal space s through the exhaust gas introduction portion 16. At this time, the exhaust gas e is introduced into the internal space s so as to swirl by the exhaust gas introduction portion 16. The exhaust gas e introduced into the internal space s contacts the cleaning liquid Cs sprayed into the internal space s in the form of a mist, SO contained in the exhaust gas eXAnd the like are absorbed and removed by the cleaning liquid Cs. The inner circumferential surface 12a of the absorber main body 12 facing the internal space s is formed with irregularities 18. Specific configurations of the unevenness 18 are exemplified in fig. 3 to 6.
Fig. 3 is a cross-sectional view taken along line a-a in fig. 1. As shown in fig. 3, the exhaust gas introduction portion 16 according to the embodiment is constituted by an exhaust gas introduction pipe disposed along the cross section of the absorber main body 12 and along the tangential direction of the outer peripheral surface of the absorber main body. The exhaust gas e introduced from the exhaust gas introduction pipe forms a swirling flow fs in the internal space s. The cleaning liquid Cs sprayed in the form of a mist from the spray part 14 spreads in the internal space s and adheres to the inner peripheral surface 12a to form a liquid film.
SO contained in the exhaust gas e when the cleaning liquid Cs is, for example, alkaline seawaterXReacts with alkaline substances contained in seawater to be neutralized and detoxified. As the cleaning liquid, lake water, river water or alkalified water can be used in addition to seawaterTreated water, etc.
According to this embodiment, since the irregularities 18 are formed on the inner peripheral surface 12a of the absorber main body 12, the contact area between the cleaning liquid Cs along the inner peripheral surface 12a and the exhaust gas e increases. On the other hand, the swirling flow fs formed by the exhaust gas e is biased to flow toward the inner peripheral surface 12a by the centrifugal force of the swirling flow fs. This improves the contact between the cleaning liquid Cs and the exhaust gas e, and improves the cleaning efficiency of the exhaust gas. In addition, by improving the cleaning efficiency, the treatment time of the exhaust gas can be shortened, and the exhaust gas treatment device 10 including the absorption tower main body 12 can be made compact.
Further, the contact area between the cleaning liquid and the exhaust gas can be increased by a simple means of forming only the irregularities 18 on the inner peripheral surface 12a without additionally providing a device requiring driving force or providing any structure in the internal space s.
In one embodiment, as shown in fig. 1 and 2, the exhaust gas introduction portion 16 is provided at a lower portion of the absorber main body 12, and the exhaust gas discharge portion 20 is provided at an uppermost portion of the absorber main body 12. The exhaust gas e introduced from the exhaust gas introduction portion 16 rises while swirling in the internal space s, and is discharged to the outside from the exhaust gas discharge portion 20. The irregularities 18 are formed on the inner peripheral surface 12a for forming a liquid film of the cleaning liquid Cs sprayed in the form of a mist from the spray part 14.
According to this embodiment, since the irregularities 18 are formed on the inner peripheral surface 12a for forming the liquid film of the cleaning liquid Cs sprayed in the form of mist from the spraying portion 14, the contact area between the cleaning liquid Cs along the inner peripheral surface 12a and the exhaust gas e increases. This improves the contact between the cleaning liquid and the exhaust gas, and improves the removal rate of the harmful components in the exhaust gas.
In one embodiment, as shown in fig. 1 and 2, a demister 22 is provided in an internal space s above the spraying section 14, the inner circumferential surface 12a on which the irregularities 18 are formed, and the exhaust gas introduction section 16.
According to this embodiment, the demister 22 provided at the most downstream side of the exhaust gas e rising in the absorber main body 12, that is, at the uppermost part of the absorber main body 12 can absorb the SO from the exhaust gas eXEtc. are harmfulSince the mist (liquid component) of the cleaning liquid of the component is removed, only the purified exhaust gas can be discharged to the outside.
In one embodiment, as shown in fig. 1 and 2, the absorber main body 12 includes: an absorption unit 21 for spraying the cleaning liquid Cs in a mist form to make the exhaust gas e harmless; and an exhaust gas discharge unit 20 disposed above the absorption unit 21 and discharging the detoxified exhaust gas e. Further, the liquid is discharged from the liquid discharge path 23 provided in the bottom surface.
In one embodiment, the absorption tower body 12 may have a circular or oval cross-section or a square cross-section.
As shown in fig. 3, the unevenness 18(18a) according to an embodiment includes one or more grooves 24 formed along the axial direction (the direction of arrow a in fig. 1) of the absorber main body 12. The groove 24 is provided over the entire circumferential region of the inner circumferential surface 12a when viewed in the axial direction of the absorber main body 12.
According to this embodiment, since the unevenness 18(18a) includes one or more grooves 24, the contact area between the cleaning liquid Cs along the inner circumferential surface 12a and the exhaust gas e can be increased, and thus the exhaust gas cleaning efficiency can be improved.
Here, the phrase "the irregularities 18(18a) are formed along the axial direction" means that the irregularities 18(18a) are formed at an inclination angle of 0 to 30 degrees with respect to the axial direction.
Fig. 4 is a schematic longitudinal sectional view showing a part of the absorption tower main body 12 according to the embodiment.
As shown in fig. 4, the unevenness 18(18b) according to an embodiment includes one or more grooves 26 formed along the circumferential direction of the absorber main body 12 and extending over the entire circumferential region of the inner circumferential surface 12a when viewed in the axial direction of the absorber main body 12.
According to this embodiment, since the unevenness 18(18b) includes one or more grooves 26 extending along the circumferential direction of the absorber main body 12 over the entire circumference of the inner circumferential surface 12a, the contact area of the cleaning liquid Cs along the inner circumferential surface 12a with the exhaust gas e can be increased, and thus the cleaning efficiency of the exhaust gas can be improved.
Here, the phrase "the unevenness 18(18b) is formed along the circumferential direction" means that the unevenness 18(18b) is formed at an inclination angle of 0 to 30 degrees with respect to the transverse section perpendicular to the axial direction of the absorber main body 12.
Fig. 5 is a perspective view schematically showing the absorption tower main body 12. As shown in fig. 5, the unevenness 18(18c) according to an embodiment includes one or more spiral grooves 28 that are provided over the entire circumferential region of the inner circumferential surface 12a and that are formed spirally along the inner circumferential surface 12 a.
According to this embodiment, since the irregularities 18(18c) are provided over the entire region in the circumferential direction of the inner circumferential surface 12a, the contact area between the cleaning liquid Cs along the inner circumferential surface 12a and the exhaust gas e can be increased, and thus the cleaning efficiency of the exhaust gas can be improved. Further, the spiral groove is easy to form, and when the spiral groove 28 is formed in the same direction as the swirling flow fs of the exhaust gas e, the attenuation of the swirl can be reduced as compared with the case where the spiral groove 28 is formed in a direction different from the swirling direction of the exhaust gas e.
The grooves 24 and 26 or the spiral groove 28 may be formed in only one or two or more in parallel. The grooves 24 and 26 or the spiral groove 28 are formed on at least the inner peripheral surface 12a of the inner wall surface of the absorber main body 12, but may be formed on the bottom surface of the absorber main body 12 other than the inner peripheral surface 12a, for example, as shown in fig. 2. In addition, these grooves are formed over the entire region in the circumferential direction of the inner peripheral surface 12a when viewed from the axial direction of the absorption tower main body 12. The grooves 24 and 26 or the spiral groove 28 desirably have a depth equal to or greater than the liquid film of the cleaning liquid Cs formed on the inner circumferential surface 12a, for example, a depth equal to or greater than 5 mm.
Fig. 6 is a perspective view schematically showing the absorption tower main body 12. As shown in fig. 6, the concave-convex portion 18(18d) according to one embodiment includes a plurality of convex portions 30 (first convex portions) formed on the inner peripheral surface 12a in a dispersed manner. The convex portion 30 is provided over the entire region in the circumferential direction of the inner circumferential surface 12a when viewed from the axial direction of the absorption tower main body 12.
According to this embodiment, by forming the irregularities 18(18d) including the plurality of convex portions 30, the contact area between the cleaning liquid Cs along the inner peripheral surface 12a and the exhaust gas e can be increased, and thereby the cleaning efficiency of the exhaust gas can be improved.
The plurality of projections 30 need not be overlapped and disposed in a dispersed manner, and thus, the irregularities 18(18d) having an increased contact area can be formed.
In one embodiment, it is necessary to set the height of the convex portions 30 from the inner peripheral surface 12a, the interval between the convex portions 30, and the like within a range in which the increase in the pressure loss of the exhaust gas e passing through the internal space s does not affect the operation of the exhaust gas treatment device 10.
As shown in fig. 6, in one embodiment, the plurality of protrusions 30 are formed at positions that are point-symmetrical with respect to the center axis O of the absorber main body 12. Thereby, the contact area of the cleaning liquid with the exhaust gas can be uniformly increased in the cross section of the internal space s.
The convex portion 30 may be formed integrally with the inner peripheral surface 12a at the same time when the inner peripheral surface 12a is manufactured, or may be manufactured separately from the inner peripheral surface 12a and attached to the inner peripheral surface 12a after the inner peripheral surface 12a is manufactured.
In one embodiment, the blocking rate is 0% when one irregularity 18 is not provided on the inner surface of the absorber main body 12 (more precisely, in fig. 1 and 2, the entire inner surface region including the inner peripheral surface and the bottom surface of the absorber main body 12 in the lower region of the demister 22), and the blocking rate is 100% when the irregularity 18 is provided on the entire inner surface region. In this case, it is desirable that the occlusion rate be 50% or less. If the blocking rate exceeds 50%, the pressure loss of the exhaust gas e becomes large inside the absorber main body 12, and the swirling force of the exhaust gas e is attenuated.
In one embodiment, as shown in fig. 2, the exhaust gas introduction portion 16 is formed of an exhaust gas introduction pipe connected to the absorber main body 12, and a connection portion of the exhaust gas introduction pipe connected to the absorber main body 12 is formed of a straight pipe portion 32 having a straight line shape. As shown in fig. 2, the straight tube portion 32 is arranged along the tangential direction of the outer peripheral surface of the absorber main body 12, and the exhaust gas e introduced from the straight tube portion 32 forms a swirling flow fs in the internal space s. Further, a plurality of convex portions 34 (second convex portions) are arranged in a dispersed manner on the inner peripheral surface of the straight tube portion 32.
When the straight pipe portion 32 has an elbow portion or the like on the upstream side, the flow of the fluid flows into the straight pipeThe exhaust gas in the portion 32 is liable to generate a drift. According to this embodiment, since the plurality of convex portions 34 are provided in a dispersed manner on the inner peripheral surface of the straight tube portion 32, the drift of the exhaust gas e flowing through the straight tube portion 32 can be suppressed. This can suppress SO contained in the exhaust gas e flowing through the straight tube portion 32XAnd the concentration distribution and the flow velocity distribution of the harmful components are deviated, so that the exhaust gas e is introduced into the internal space s as a uniform fluid. Therefore, the contact space between the exhaust gas and the cleaning liquid in the internal space s can be increased, whereby the contact between the exhaust gas and the cleaning liquid can be improved, and the removal rate of the harmful components in the exhaust gas can be improved.
The plurality of projections 34 are disposed in a dispersed manner without overlapping. This can enhance the effect of suppressing the drift of the exhaust gas e flowing through the straight tube portion 32. In addition, it is necessary to set the height of the convex portions 34 from the inner peripheral surface 12a, the interval between the convex portions 34, and the like within a range in which the increase in the pressure loss of the exhaust gas e passing through the straight pipe portion 32 does not affect the operation of the exhaust gas treatment device 10.
The convex portion 34 is desirably formed over the entire area in the circumferential direction of the inner peripheral surface of the straight tube portion 32. The convex portion 34 may be formed integrally with the inner peripheral surface of the straight tube portion 32 at the same time when the inner peripheral surface is manufactured, or may be manufactured separately from the inner peripheral surface and attached to the inner peripheral surface after the inner peripheral surface is manufactured.
In one embodiment, the blocking ratio is 0% when none of the protrusions 34 is provided on the inner peripheral surface of the straight tube portion 32, and 100% when the protrusions 34 are provided over the entire inner peripheral surface of the straight tube portion 32. In this case, it is desirable that the occlusion rate be 50% or less. When the occlusion rate exceeds 50%, SO is generated by the convex portion 34XThe concentration distribution of the harmful components and the variation in the flow velocity distribution can be suppressed, but the flow velocity of the exhaust gas e may be reduced and the swirling force inside the absorber main body may be reduced because the pressure loss is increased.
In one embodiment, as shown in fig. 1, the spraying section 14(14a) includes: a main tube 40 extending along a central axis O of the internal space s; one or more branch pipes 42 extending from the main pipe 40 toward the inner peripheral surface 12 a; and a spray nozzle 44 that sprays the cleaning liquid Cs supplied from the branch pipe 42 in a mist form.
According to this embodiment, since the spray portion 14(14a) is provided in the axial direction at the center portion of the internal space s, the cleaning liquid Cs is sprayed from the center portion of the internal space s toward the entire circumference of the inner circumferential surface 12a by the spray nozzle 44, and thus the cleaning liquid Cs can be uniformly sprayed into the internal space s and the cleaning liquid film can be uniformly formed over the entire circumferential region of the inner circumferential surface 12 a. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
In one embodiment, spray nozzles 44 are mounted to manifold 42. Preferably, the cleaning liquid Cs is attached to the tip of the branch pipe 42 so as to be sprayed from the vicinity of the inner peripheral surface 12a toward the inner peripheral surface 12 a. This facilitates formation of a liquid film of the cleaning liquid Cs on the inner peripheral surface 12 a.
The branch pipes 42 may be disposed in a cross section perpendicular to the axial direction of the absorber main body 12, or may be disposed in a direction inclined vertically from the cross section.
The spraying direction of the cleaning liquid by the spray nozzle 44 is set appropriately so that the cleaning liquid Cs is uniformly diffused into the internal space s or a liquid film of the cleaning liquid Cs is reliably formed on the inner peripheral surface 12 a.
In one embodiment, as shown in fig. 2, the spraying section 14(14b) is provided in the internal space s above the inner circumferential surface 12a where the irregularities 18 are formed and the exhaust gas introduction section 16. The cleaning liquid Cs is supplied to the spraying section 14(14 b). The spray unit 14(14b) extends along the cross section of the absorption tower main body 12, and includes a nozzle pipe 46 in which a plurality of nozzles 48 are arranged in a dispersed manner.
According to this embodiment, since the spray portion 14(14b) extends along the cross section of the absorption tower main body 12 at the uppermost portion of the absorption tower main body 12, when the cleaning liquid is sprayed from the nozzle pipe 46, the cleaning liquid Cs sprayed in the form of a mist drops by gravity and is uniformly distributed to the lower internal space. Further, since it is not necessary to provide the spray portion in the lower internal space s, the contact space between the exhaust gas and the cleaning liquid can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas. Further, the spray unit 14(14b) can be configured to have a simple structure in which only the nozzle pipe 46 is provided.
Here, the phrase "the spray portion 14(14b) extends along the cross section of the absorber main body 12" means that it extends at an inclination angle of 0 to 30 degrees with respect to the cross section perpendicular to the axial direction of the absorber main body 12.
In one embodiment, the cleaning liquid supply pipe 50 is connected to the nozzle pipe 46 and is led from the outside of the absorption tower main body 12 to the internal space s, and the cleaning liquid Cs is supplied from the cleaning liquid supply pipe 50 to the nozzle pipe 46.
In one embodiment, the nozzle tube 46 is comprised of an annular nozzle tube. For example, by increasing the diameter of the annular nozzle pipe and disposing the nozzle 48 at a position close to the inner circumferential surface 12a, a liquid film of the cleaning liquid is easily formed on the inner circumferential surface 12 a.
The nozzle pipe 46 may have any shape other than a ring shape, which can uniformly distribute the cleaning liquid into the lower internal space s.
In one embodiment, as shown in fig. 7, the spray portion 14(14c) is provided at each of the plurality of protrusions 30. In the figure, the angle θ shows the spray angle of the cleaning liquid Cs.
According to this embodiment, since the spray portion 14(14c) is provided in the convex portion 30 provided in the inner peripheral surface 12a, it is not necessary to provide a spray portion in the central portion of the internal space s. Accordingly, the pressure loss of the exhaust gas flowing in the internal space s can be reduced, and the space for bringing the cleaning liquid into contact with the exhaust gas can be increased accordingly.
The nozzle opening of the spraying section 14(14c) may be arranged in a direction inclined vertically with respect to a cross section orthogonal to the axial direction of the absorption tower main body 12, or may be arranged with an angle in the circumferential direction of the inner circumferential surface 12 a.
When the exhaust gas e swirls in the internal space s, the exhaust gas e is offset toward the inner peripheral surface 12 a. Therefore, if the nozzle opening for spraying the cleaning liquid from the spray portion 14(14c) is directed toward the inner peripheral surface side and the cleaning liquid is densely spread toward the inner peripheral surface side, a large amount of the cleaning liquid can be discharged into a space with a large amount of exhaust gas, and thus the cleaning efficiency can be improved.
In one embodiment, the spray portion 14(14c) is configured to spray the cleaning liquid in the form of a mist from each of the plurality of protrusions 30 toward the swirling direction of the exhaust gas.
The cleaning liquid contacts the exhaust gas in the internal space of the absorption tower main body, so that the swirling force of the exhaust gas is attenuated. According to this embodiment, the cleaning liquid is sprayed from the convex portion 30 toward the swirling flow fs of the exhaust gas, whereby the attenuation of the swirling force of the exhaust gas can be reduced.
In one embodiment, the spray portions 14(14c) are distributed over the entire circumferential area of the inner circumferential surface 12a when viewed in the axial direction of the absorber main body 12. This allows the cleaning liquid to be uniformly distributed over the entire area of the internal space s.
The convex portion 30 provided with the spray portion 14(14c) can be arbitrarily selected according to the purpose, and therefore, is not necessarily arranged on the cross section of the absorption tower body 12, and may be arranged on the inner circumferential surface 12a in a spiral shape, for example.
In addition, the orientation of the plurality of nozzle openings of the spray section 14(14c) may be adjusted so that the cleaning liquids sprayed from the respective nozzle openings do not face each other.
In some embodiments, as shown in fig. 8 to 13, the convex portions 30 and 34 can have various shapes.
For example, as shown in fig. 8, the shape may be a polygonal pyramid or a truncated cone. For example, a hexagonal pyramid-shaped convex portion is illustrated in fig. 8 (a), a triangular pyramid-shaped convex portion is illustrated in fig. 8 (B), and a triangular frustum-shaped convex portion is illustrated in fig. 8 (C).
With the above shape, the contact area of the cleaning liquid along the inner peripheral surface 12a with the exhaust gas can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
For example, as shown in fig. 9, the convex portions 30 and 34 may be formed in a conical shape or a truncated conical shape. The conical convex portion is illustrated in fig. 9 (a), and the truncated cone-shaped convex portion is illustrated in fig. 9 (B).
With the above shape, the contact area of the cleaning liquid along the inner peripheral surface 12a with the exhaust gas can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
For example, as shown in fig. 10, the convex portions 30 and 34 may have a prism shape. For example, a quadrangular prism-shaped convex portion is illustrated in fig. 10 (a), and a triangular prism-shaped convex portion is illustrated in fig. 10 (B).
With the above shape, the contact area of the cleaning liquid along the inner peripheral surface 12a with the exhaust gas can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
For example, as shown in fig. 11, the convex portions 30 and 34 may have a cylindrical shape.
With the above shape, the contact area of the cleaning liquid along the inner peripheral surface 12a with the exhaust gas can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
For example, as shown in fig. 12, the convex portions 30 and 34 may be formed in a spherical shape or an ellipsoidal shape. Fig. 12 (a) illustrates a spherical convex portion, and fig. 12 (B) illustrates an elliptical convex portion.
With the above shape, the contact area of the cleaning liquid along the inner peripheral surface 12a with the exhaust gas can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
For example, as shown in fig. 13, the convex portions 30 and 34 may have a three-dimensional shape having a half-moon-shaped cross section or a three-dimensional shape having a waveform in cross section. Fig. 13 (a) illustrates a convex portion having a three-dimensional shape with a half-moon-shaped cross section 52, and fig. 13 (B) illustrates a convex portion having a three-dimensional shape with a waveform cross section 54.
With the above shape, the contact area of the cleaning liquid along the inner peripheral surface 12a with the exhaust gas can be increased. This improves the contact between the cleaning liquid and the exhaust gas, and improves the cleaning efficiency of the exhaust gas.
Industrial applicability
According to the embodiments, the absorption efficiency of the cleaning liquid for absorbing the harmful components in the exhaust gas is improved, so that the treatment time can be shortened, and the exhaust gas treatment device including the absorption tower and the like can be made compact.

Claims (9)

1.一种废气处理装置，其通过使废气与清洗液接触而将所述废气中包含的有害成分吸收去除，所述废气处理装置的特征在于，1. An exhaust gas treatment device that absorbs and removes harmful components contained in the exhaust gas by contacting the exhaust gas with a cleaning liquid, the exhaust gas treatment device characterized by: 所述废气处理装置包括：The exhaust gas treatment device includes: 吸收塔主体，其形成有内部空间；the main body of the absorption tower, which is formed with an inner space; 喷雾部，其向所述内部空间内呈雾状喷射所述清洗液；以及a spray part that sprays the cleaning liquid into the inner space in a mist form; and 废气导入部，其以使所述废气在所述内部空间中回旋的方式导入所述废气，an exhaust gas introduction part that introduces the exhaust gas so as to swirl the exhaust gas in the inner space, 在所述吸收塔主体的面朝所述内部空间的内周面形成有凹凸，Concavities and convexities are formed on the inner peripheral surface of the absorption tower body facing the inner space, 所述废气导入部由与所述吸收塔主体连接的废气导入管构成，The exhaust gas introduction part is composed of an exhaust gas introduction pipe connected to the main body of the absorption tower, 所述废气导入管包括设置于所述废气导入管与所述吸收塔主体连接的连接部的直线形状的直管部，The exhaust gas introduction pipe includes a straight pipe portion of a linear shape provided at a connection portion between the exhaust gas introduction pipe and the absorption tower main body, 所述凹凸包括沿着所述吸收塔主体的轴向形成、且在从所述吸收塔主体的轴向观察时在所述内周面的周向上整个区域设置的一个以上的槽，The unevenness includes one or more grooves formed along the axial direction of the absorption tower main body and provided over the entire area in the circumferential direction of the inner peripheral surface when viewed from the axial direction of the absorption tower main body, 该直管部具有分散地配置于所述直管部的内周面的、用于抑制所述废气中包含的有害成分的浓度分布以及流速分布的偏差的多个第二凸部。The straight pipe portion has a plurality of second convex portions that are distributed on the inner peripheral surface of the straight pipe portion and suppress variations in the concentration distribution and flow velocity distribution of the harmful components contained in the exhaust gas. 2.根据权利要求1所述的废气处理装置，其特征在于，2. The exhaust gas treatment device according to claim 1, characterized in that, 所述喷雾部包括：The spray section includes: 在所述内部空间内沿着所述吸收塔主体的中心轴线延伸的主管；a main pipe extending along the central axis of the absorption tower body within the interior space; 从所述主管朝向所述内周面延伸的一个以上的支管；以及one or more branch pipes extending from the main pipe toward the inner peripheral surface; and 呈雾状喷射从所述支管供给的所述清洗液的喷雾嘴。A spray nozzle that sprays the cleaning liquid supplied from the branch pipe in a mist form. 3.根据权利要求1所述的废气处理装置，其特征在于，3. The exhaust gas treatment device according to claim 1, characterized in that, 所述喷雾部设于比形成有所述凹凸的所述内周面以及所述废气导入部靠上方的所述内部空间，The spray portion is provided in the inner space above the inner peripheral surface on which the unevenness is formed and the exhaust gas introduction portion, 所述喷雾部包括被供给所述清洗液、且沿着所述吸收塔主体的横截面延伸、并且分散地配置有多个喷嘴的喷嘴管。The spray section includes a nozzle pipe to which the cleaning liquid is supplied, extends along a cross section of the absorption tower main body, and has a plurality of nozzles dispersedly arranged. 4.一种废气处理装置，其通过使废气与清洗液接触而将所述废气中包含的有害成分吸收去除，所述废气处理装置的特征在于，4. An exhaust gas treatment device which absorbs and removes harmful components contained in the exhaust gas by contacting the exhaust gas with a cleaning liquid, wherein the exhaust gas treatment device is characterized in that: 所述废气处理装置包括：The exhaust gas treatment device includes: 吸收塔主体，其形成有内部空间；the main body of the absorption tower, which is formed with an inner space; 喷雾部，其向所述内部空间内呈雾状喷射所述清洗液；以及a spray part that sprays the cleaning liquid into the inner space in a mist form; and 废气导入部，其以使所述废气在所述内部空间中回旋的方式导入所述废气，an exhaust gas introduction part that introduces the exhaust gas so as to swirl the exhaust gas in the inner space, 在所述吸收塔主体的面朝所述内部空间的内周面形成有凹凸，Concavities and convexities are formed on the inner peripheral surface of the absorption tower body facing the inner space, 所述凹凸包括不重合而分散地形成于所述内周面、且在从所述吸收塔主体的轴向观察时在所述内周面的周向上整个区域设置的多个第一凸部，The concavities and convexities include a plurality of first convexes that are formed on the inner peripheral surface in a dispersed manner without overlapping, and are provided over the entire area in the circumferential direction of the inner peripheral surface when viewed from the axial direction of the absorption tower body, 所述喷雾部设于所述多个第一凸部中的各个凸部，the spray part is provided on each of the plurality of first convex parts, 所述喷雾部构成为，从所述多个第一凸部分别朝向所述废气的回旋方向呈雾状喷射所述清洗液。The spray portion is configured to spray the cleaning liquid in a mist form from the plurality of first convex portions toward the swirling direction of the exhaust gas, respectively. 5.根据权利要求1或4所述的废气处理装置，其特征在于，5. The exhaust gas treatment device according to claim 1 or 4, characterized in that, 所述废气导入部设置于所述吸收塔主体的下部，并且在所述吸收塔主体的最上部设置有废气排出部，从所述废气导入部导入的所述废气在所述内部空间内边回旋边上升，The exhaust gas introduction part is provided in the lower part of the absorption tower main body, and an exhaust gas discharge part is provided in the uppermost part of the absorption tower main body, and the exhaust gas introduced from the exhaust gas introduction part swirls in the inner space edge up, 所述凹凸形成于用于形成从所述喷雾部呈雾状喷射的所述清洗液的液膜的所述内周面。The unevenness is formed on the inner peripheral surface for forming a liquid film of the cleaning liquid sprayed from the spray section in a mist form. 6.根据权利要求1或4所述的废气处理装置，其特征在于，6. The exhaust gas treatment device according to claim 1 or 4, characterized in that, 所述废气处理装置包括除雾器，该除雾器设置于比所述喷雾部、形成有所述凹凸的所述内周面以及所述废气导入部靠上方的所述内部空间。The exhaust gas treatment device includes a mist eliminator provided in the inner space above the spray portion, the inner peripheral surface on which the unevenness is formed, and the exhaust gas introduction portion. 7.根据权利要求4所述的废气处理装置，其特征在于，7. The exhaust gas treatment device according to claim 4, characterized in that, 所述废气导入部由与所述吸收塔主体连接的废气导入管构成，The exhaust gas introduction part is composed of an exhaust gas introduction pipe connected to the main body of the absorption tower, 所述废气导入管包括设置于所述废气导入管与所述吸收塔主体连接的连接部的直线形状的直管部，The exhaust gas introduction pipe includes a straight pipe portion of a linear shape provided at a connection portion between the exhaust gas introduction pipe and the absorption tower main body, 该直管部具有分散地配置于所述直管部的内周面的多个第二凸部。The straight pipe portion has a plurality of second convex portions that are distributed on the inner peripheral surface of the straight pipe portion. 8.根据权利要求4所述的废气处理装置，其特征在于，8. The exhaust gas treatment device according to claim 4, characterized in that, 所述第一凸部具有多棱锥形状、圆锥形状、锥台形状、棱柱形状、圆柱形状、球面形状、椭圆面形状、截面具有半月形状的立体形状或者截面具有波形的立体形状。The first convex portion has a polygonal pyramid shape, a conical shape, a frustum shape, a prism shape, a cylindrical shape, a spherical shape, an elliptical shape, a three-dimensional shape with a half-moon shape in cross section, or a three-dimensional shape with a waveform in cross section. 9.根据权利要求7所述的废气处理装置，其特征在于，9. The exhaust gas treatment device according to claim 7, characterized in that, 所述第二凸部具有多棱锥形状、圆锥形状、锥台形状、棱柱形状、圆柱形状、球面形状、椭圆面形状、截面具有半月形状的立体形状或者截面具有波形的立体形状。The second convex portion has a polygonal pyramid shape, a conical shape, a frustum shape, a prism shape, a cylindrical shape, a spherical shape, an elliptical shape, a three-dimensional shape with a half-moon shape in cross section, or a three-dimensional shape with a waveform in cross section.
CN201910159452.7A 2018-03-19 2019-03-01 Exhaust gas treatment device Expired - Fee Related CN110280112B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018050467A JP7105075B2 (en) 2018-03-19 2018-03-19 Exhaust gas treatment device
JP2018-050467 2018-03-19

Publications (2)

Publication Number Publication Date
CN110280112A CN110280112A (en) 2019-09-27
CN110280112B true CN110280112B (en) 2021-10-12

Family

ID=68001079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910159452.7A Expired - Fee Related CN110280112B (en) 2018-03-19 2019-03-01 Exhaust gas treatment device

Country Status (3)

Country Link
JP (1) JP7105075B2 (en)
KR (1) KR102252547B1 (en)
CN (1) CN110280112B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2644251A1 (en) * 2012-03-29 2013-10-02 Doosan Lentjes GmbH A flue gas purification device
CN105536491A (en) * 2015-09-17 2016-05-04 大唐环境产业集团股份有限公司 Desulfuration spray tower
CN105879627A (en) * 2014-10-21 2016-08-24 丁有农 Medium atomization wet-method flue gas desulfurization column
CN106794417A (en) * 2015-02-24 2017-05-31 富士电机株式会社 Emission-control equipment
CN106984165A (en) * 2017-06-09 2017-07-28 史汉祥 A kind of gas cleaning reactor and cone structure part

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49134571A (en) * 1973-04-28 1974-12-25
JPH0938433A (en) * 1995-08-02 1997-02-10 Denso Corp Air purifier
JPH09173764A (en) * 1995-12-22 1997-07-08 Babcock Hitachi Kk Wet flue gas desulfurizer and method thereof
JP3093744B2 (en) 1999-01-22 2000-10-03 日本鋼管株式会社 Flue gas desulfurization equipment
JP2005349350A (en) * 2004-06-14 2005-12-22 Okunaga Masaki Exhaust gas treatment apparatus
JP5998915B2 (en) * 2012-12-19 2016-09-28 富士電機株式会社 Exhaust gas treatment equipment
KR20170054549A (en) * 2013-10-17 2017-05-17 후지 덴키 가부시키가이샤 Gas absorption column, method for producing gas absorption column, and marine vessel
JP2016052629A (en) * 2014-09-04 2016-04-14 株式会社Ihi Desulfurization apparatus
CN205392164U (en) * 2016-02-29 2016-07-27 国电科学技术研究院 Unsmooth gas -liquid equipartition ring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2644251A1 (en) * 2012-03-29 2013-10-02 Doosan Lentjes GmbH A flue gas purification device
CN105879627A (en) * 2014-10-21 2016-08-24 丁有农 Medium atomization wet-method flue gas desulfurization column
CN106794417A (en) * 2015-02-24 2017-05-31 富士电机株式会社 Emission-control equipment
CN105536491A (en) * 2015-09-17 2016-05-04 大唐环境产业集团股份有限公司 Desulfuration spray tower
CN106984165A (en) * 2017-06-09 2017-07-28 史汉祥 A kind of gas cleaning reactor and cone structure part

Also Published As

Publication number Publication date
KR20190110025A (en) 2019-09-27
KR102252547B1 (en) 2021-05-14
CN110280112A (en) 2019-09-27
JP7105075B2 (en) 2022-07-22
JP2019162568A (en) 2019-09-26

Similar Documents

Publication Publication Date Title
US10294841B2 (en) Dosing and mixing arrangement for use in exhaust aftertreatment
RU2631591C2 (en) Mixing device for further processing of waste gases
KR101570466B1 (en) Exhaust gas processing apparatus
RU2430769C1 (en) Scrubber with moving nozzle
CN110280112B (en) Exhaust gas treatment device
RU2330713C1 (en) Kochetov's scrubber
TWI720589B (en) Gas-liquid mixing device and exhaust gas desulfurization device with gas-liquid mixing device
RU2624111C1 (en) Venturi scrubber with finely divided irrigation
RU2663731C2 (en) Scrubber with moving nozzle
RU2591270C2 (en) Scrubber with moving nozzle
RU2531830C1 (en) Scrubber with moving nozzle
RU2665401C1 (en) Conical jet scrubber
CA1116509A (en) Venturi scrubber
RU2568701C1 (en) Scrubber with moving nozzle
RU2001110533A (en) PAROMECHANICAL INJECTOR "TAGPOL"
JP2019147121A (en) Shower nozzle
RU2357804C2 (en) Set geometry jet generator
RU2669819C1 (en) Scrubber
JP2019127880A (en) Agitator
RU2440838C1 (en) Scrubber
CN110662602A (en) FCC unit feed injection apparatus with limited pressure drop
RU2661570C1 (en) Scrubber
RU67228U1 (en) PAROMECHANICAL INJECTOR POLYGRADOV B.G.
RU2657486C1 (en) Scrubber with movable nozzle
RU2656456C1 (en) Gas scrubber

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20211012

CF01 Termination of patent right due to non-payment of annual fee