CN117339384A - Supporting structure of internal facility of chemical tower, catalytic flue gas desulfurization device and assembly - Google Patents
Supporting structure of internal facility of chemical tower, catalytic flue gas desulfurization device and assembly Download PDFInfo
- Publication number
- CN117339384A CN117339384A CN202310882502.0A CN202310882502A CN117339384A CN 117339384 A CN117339384 A CN 117339384A CN 202310882502 A CN202310882502 A CN 202310882502A CN 117339384 A CN117339384 A CN 117339384A
- Authority
- CN
- China
- Prior art keywords
- supporting
- flange
- prefabricated
- flue gas
- desulfurization
- 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.)
- Pending
Links
- 239000000126 substance Substances 0.000 title claims abstract description 66
- 238000006477 desulfuration reaction Methods 0.000 title claims description 244
- 230000023556 desulfurization Effects 0.000 title claims description 244
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims description 117
- 239000003546 flue gas Substances 0.000 title claims description 117
- 230000003197 catalytic effect Effects 0.000 title claims description 100
- 210000001503 joint Anatomy 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims description 91
- 239000007788 liquid Substances 0.000 claims description 52
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 44
- 238000011049 filling Methods 0.000 claims description 21
- 230000008929 regeneration Effects 0.000 claims description 19
- 238000011069 regeneration method Methods 0.000 claims description 19
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 10
- 230000001172 regenerating effect Effects 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 description 24
- 239000010959 steel Substances 0.000 description 24
- 239000000463 material Substances 0.000 description 18
- 238000009423 ventilation Methods 0.000 description 16
- 239000002253 acid Substances 0.000 description 13
- 238000005507 spraying Methods 0.000 description 12
- 239000000919 ceramic Substances 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 10
- 238000005192 partition Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 9
- 239000000945 filler Substances 0.000 description 9
- 229920000620 organic polymer Polymers 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000011068 loading method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001868 water Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8606—Removing sulfur compounds only one sulfur compound other than sulfur oxides or hydrogen sulfide
-
- 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
- B01D53/346—Controlling the process
-
- 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
-
- 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
-
- 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
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention discloses a supporting structure of an internal facility of a chemical tower, which comprises the following components: the first transverse hole system comprises a plurality of first transverse hole pairs, wherein each first transverse hole pair of the plurality of first transverse hole pairs consists of two first transverse through holes which are arranged opposite to each other and respectively penetrate through the side wall of the chemical tower; each first flange pipe pair of the plurality of first flange pipe pairs consists of two first flange pipes, and two first flange covers, wherein the inner side ends of the two first flange pipes are respectively in butt joint conduction with the two first transverse through holes corresponding to one first transverse hole pair; the first supporting beam layer comprises a plurality of first supporting beams which are arranged on the inner wall surface of the side wall of the chemical tower at intervals, two ends of each first supporting beam in the plurality of first supporting beams respectively penetrate through two first transverse through holes corresponding to one first transverse hole pair and extend into two first flange pipes corresponding to one first flange pipe pair, and the plurality of first supporting beams are used for bearing the weight of the internal facilities of the chemical tower.
Description
Technical Field
The present disclosure relates to the field of flue gas desulfurization technology, and in particular, to a catalytic flue gas desulfurization apparatus, a catalytic flue gas desulfurization assembly, and a chemical tower internal facility support structure and a ventilation support plate applicable to the same.
Background
The flue gas desulfurization technology by the catalytic method is a known desulfurization technology with application prospect, and the basic principle is as follows: sulfur dioxide, water and oxygen in the flue gas are adsorbed on the catalyst and react to generate sulfuric acid under the catalysis of active components. After the catalyst has been bound to some extent with sulfuric acid, the catalyst may be washed with a regeneration liquid (usually dilute sulfuric acid and/or water) to remove the bound sulfuric acid from the catalyst and release the catalyst sites. The used regenerated liquid can be reused as a byproduct (usually dilute sulfuric acid). Relevant references include: the state of the art and trend of flue gas desulfurization by the catalytic method are the congress of the annual academy of sciences of the academy of sciences of China, 2009, huang Pan and the like).
When the catalytic flue gas desulfurization technology is applied to practical engineering, a special catalytic flue gas desulfurization tower and a desulfurization reactor arranged in the catalytic flue gas desulfurization tower are needed. The applicant of the present application provides a catalytic flue gas desulfurization device in the patent document with publication number CN214764545U, wherein a desulfurization reactor is provided with an air inlet, an air outlet, a liquid outlet and a catalyst filling space in the desulfurization reactor, and a spray device for washing and regenerating the catalyst is arranged on the desulfurization reactor; and during desulfurization, the flue gas enters the desulfurization reactor from the air inlet, is discharged from the exhaust port after being desulfurized by the catalyst, sulfur dioxide in the flue gas reacts on the catalyst to form sulfuric acid when passing through the catalyst, and the sulfuric acid enters the regeneration liquid sprayed on the catalyst and is discharged from the liquid discharge port when the catalyst is washed and regenerated. In addition, the applicant also provides improved catalytic flue gas desulfurization equipment in patent literature with publication number CN114653202A, CN114797450a and the like.
The catalytic desulfurization technology has been widely focused by all parties since industrial popularization, and a plurality of sets of industrial catalytic flue gas desulfurization equipment are successively built, so that successful engineering application in industries such as sulfuric acid, nonferrous smelting, coking and the like has been accepted by owners. However, the existing catalytic flue gas desulfurization equipment needs to build a frame-type supporting structure (which can be described in the above patent documents) on an installation and use site to bear the desulfurization reactor, and the frame-type supporting structure has the problems of long construction period, large investment, large occupied area and the like, so that the convenience in building and using the catalytic flue gas desulfurization equipment is reduced.
Disclosure of Invention
One of the purposes of the present disclosure is to provide a catalytic flue gas desulfurization device and assembly, which significantly improves the convenience of construction and use of the catalytic flue gas desulfurization device through the modular design of the catalytic flue gas desulfurization device.
Based on the development of the catalytic flue gas desulfurization device and the components, other inventions and creations which can be applied to the catalytic flue gas desulfurization device and the components are made, such as supporting structures of internal facilities of chemical towers, ventilation supporting plates and the like. It is a further object of the present disclosure to provide such inventions.
In a first aspect, there is provided a catalytic flue gas desulfurization apparatus comprising: the desulfurization reactor is provided with an air inlet, an air outlet, a liquid outlet and a catalyst filling space in the desulfurization reactor, and a spray device for washing and regenerating the catalyst in the catalyst filling space is arranged on the desulfurization reactor; during desulfurization, flue gas enters a desulfurization reactor from the gas inlet, is desulfurized through a catalyst and is discharged from the gas outlet, sulfur dioxide in the flue gas reacts on the catalyst to form sulfuric acid when passing through the catalyst, and the sulfuric acid enters a regeneration liquid and is discharged from a liquid outlet when the catalyst is washed and regenerated; the device comprises a prefabricated modularized support unit, wherein the prefabricated modularized support unit is prefabricated before a catalytic flue gas desulfurization device is installed on a use site, is assembled with other prefabricated modularized support units up and down mechanically and is used for installing and supporting a corresponding desulfurization reactor, and the prefabricated modularized support unit comprises the following parts: the device comprises a prefabricated modularized support unit body, a support frame and a support frame, wherein the prefabricated modularized support unit body is provided with a desulfurization reactor placing space, and the desulfurization reactor placing space is used for placing a corresponding desulfurization reactor; the first type of interfaces are arranged on the prefabricated modularized support unit body and realize the up-and-down mechanical assembly of the prefabricated modularized support unit body and other prefabricated modularized support unit bodies; the second type of interfaces are distributed on the prefabricated modularized support unit body and are used for connecting the desulfurization reactor in the prefabricated modularized support unit body with an external pipeline.
In a second aspect, a catalytic flue gas desulfurization assembly is provided, including at least two catalytic flue gas desulfurization devices, where the at least two catalytic flue gas desulfurization devices each employ the catalytic flue gas desulfurization device of the first aspect; in the at least two catalytic flue gas desulfurization devices, the prefabricated modularized support unit of each catalytic flue gas desulfurization device and the prefabricated modularized support units of the adjacent catalytic flue gas desulfurization devices are assembled together up and down mechanically to form the catalytic flue gas desulfurization tower.
The catalytic flue gas desulfurization device adopts the prefabricated modularized support units, so that the prefabricated modularized support units of each catalytic flue gas desulfurization device of the catalytic flue gas desulfurization assembly and the prefabricated modularized support units of the adjacent catalytic flue gas desulfurization devices are assembled together up and down mechanically to form the catalytic flue gas desulfurization tower, and the construction and use convenience of the catalytic flue gas desulfurization tower are remarkably improved.
In a third aspect, there is provided a chemical tower internal support structure comprising: the first transverse hole system comprises a plurality of first transverse hole pairs which are arranged on the side wall of the chemical tower, wherein each first transverse hole pair of the plurality of first transverse hole pairs consists of two first transverse through holes which are arranged opposite to each other and respectively penetrate through the side wall of the chemical tower; the first flange pipe group comprises a plurality of first flange pipe pairs which are arranged on the outer wall surface of the side wall of the chemical tower, wherein each first flange pipe pair of the plurality of first flange pipe pairs consists of two first flange pipes with inner ends respectively in butt joint conduction with two first transverse through holes corresponding to one first transverse hole pair and two first flange covers respectively arranged at the outer ends of the two first flange pipes; the first supporting beam layer comprises a plurality of first supporting beams which are arranged on the inner wall surface of the side wall of the chemical tower at intervals, two ends of each first supporting beam in the plurality of first supporting beams respectively penetrate through two first transverse through holes corresponding to one first transverse hole pair and extend into two first flange pipes corresponding to one first flange pipe pair, and the plurality of first supporting beams are used for bearing the weight of the internal facilities of the chemical tower.
In a fourth aspect, there is provided a catalytic flue gas desulfurization apparatus comprising: the desulfurization reactor is provided with an air inlet, an air outlet, a liquid outlet and a catalyst filling space in the desulfurization reactor, and a spray device for washing and regenerating the catalyst in the catalyst filling space is arranged on the desulfurization reactor; during desulfurization, flue gas enters a desulfurization reactor from the gas inlet, then is discharged from the gas outlet after being desulfurized through a catalyst, sulfur dioxide in the flue gas reacts on the catalyst to form sulfuric acid when passing through the catalyst, and the sulfuric acid enters a regeneration liquid and is discharged from a liquid outlet when the catalyst is washed and regenerated: the device comprises a prefabricated modularized support unit, wherein the prefabricated modularized support unit is prefabricated before a catalytic flue gas desulfurization device is installed on a use site, is assembled with other prefabricated modularized support units up and down mechanically and is used for installing and supporting a corresponding desulfurization reactor, and the prefabricated modularized support unit comprises the following parts: the device comprises a prefabricated modularized support unit body, a support frame and a support frame, wherein the prefabricated modularized support unit body is provided with a desulfurization reactor placing space, and the desulfurization reactor placing space is used for placing a corresponding desulfurization reactor; the first type of interfaces are arranged on the prefabricated modularized support unit body and realize the up-and-down mechanical assembly of the prefabricated modularized support unit body and other prefabricated modularized support unit bodies; the second type of interfaces are distributed on the prefabricated modularized support unit body and are used for realizing connection between the desulfurization reactor in the prefabricated modularized support unit body and an external pipeline; wherein, be provided with the chemical industry tower internal facility bearing structure of above-mentioned third aspect in the desulfurization reactor, this chemical industry tower internal facility bearing structure with the lateral wall of desulfurization reactor is the chemical industry tower lateral wall, the catalyst of desulfurization reactor fills the space and is located this chemical industry tower internal facility bearing structure top, this chemical industry tower internal facility bearing structure is used for bearing the weight of catalyst in the catalyst filling space.
Above-mentioned chemical industry tower internal facility bearing structure has increased the area of contact of chemical industry tower lateral wall and supporting beam through setting up the flange nest of tubes, avoids chemical industry tower lateral wall stress concentration when bearing supporting beam and chemical industry tower internal facility's weight, is applicable to the condition that needs to utilize chemical industry tower lateral wall to support chemical industry tower internal facility on all kinds of chemical industry towers. The catalytic flue gas desulfurization device adopts the chemical tower internal facility supporting structure to bear the weight of the catalyst in the catalyst filling space, and an upright post used in patent documents such as CN114653202A, CN114797450A is not required to be arranged at the bottom of the desulfurization reactor, so that the internal structure of the desulfurization reactor is simplified, and the modularized design of the catalytic flue gas desulfurization device is facilitated to be optimized.
In a fifth aspect, there is provided a breathable support panel comprising: the outer structure is a plate made of organic polymer structural materials, and ventilation holes are distributed on the plate made of the organic polymer structural materials; the internal structure is composed of a steel framework which is embedded in and covered by the organic high polymer structural material.
In a sixth aspect, there is provided a catalytic flue gas desulfurization apparatus comprising: the desulfurization reactor is provided with an air inlet, an air outlet, a liquid outlet and a catalyst filling space in the desulfurization reactor, and a spray device for washing and regenerating the catalyst in the catalyst filling space is arranged on the desulfurization reactor; during desulfurization, flue gas enters a desulfurization reactor from the gas inlet, is desulfurized through a catalyst and is discharged from the gas outlet, sulfur dioxide in the flue gas reacts on the catalyst to form sulfuric acid when passing through the catalyst, and the sulfuric acid enters a regeneration liquid and is discharged from a liquid outlet when the catalyst is washed and regenerated; the device comprises a prefabricated modularized support unit, wherein the prefabricated modularized support unit is prefabricated before a catalytic flue gas desulfurization device is installed on a use site, is assembled with other prefabricated modularized support units up and down mechanically and is used for installing and supporting a corresponding desulfurization reactor, and the prefabricated modularized support unit comprises the following parts: the device comprises a prefabricated modularized support unit body, a support frame and a support frame, wherein the prefabricated modularized support unit body is provided with a desulfurization reactor placing space, and the desulfurization reactor placing space is used for placing a corresponding desulfurization reactor; the first type of interfaces are arranged on the prefabricated modularized support unit body and realize the up-and-down mechanical assembly of the prefabricated modularized support unit body and other prefabricated modularized support unit bodies; the second type of interfaces are distributed on the prefabricated modularized support unit body and are used for realizing connection between the desulfurization reactor in the prefabricated modularized support unit body and an external pipeline; the desulfurization reactor is provided with the gas-permeable supporting plate according to the fifth aspect, the gas-permeable supporting plate is used for placing the catalyst, and the organic polymer structural material of the gas-permeable supporting plate is an organic polymer structural material with acid corrosion resistance.
The breathable support plate can achieve excellent structural strength while ensuring lighter weight, and can achieve good chemical stability by selecting proper organic high-molecular structural materials according to application environments. The ventilation supporting plate is applied to the flue gas desulfurization device by the catalytic method to place a catalyst, can replace a catalyst bearing layer (mainly comprising ceramic corrugated filler) used in patent documents with the publication number of CN114653202A, CN114797450A and the like, and has the advantages of strong acid corrosion resistance, difficult deformation after long-term use, convenient installation and replacement and lower use cost.
In a seventh aspect, there is provided a catalytic flue gas desulfurization apparatus comprising: the desulfurization reactor is provided with an air inlet, an air outlet, a liquid outlet and a catalyst filling space in the desulfurization reactor, and a spray device for washing and regenerating the catalyst in the catalyst filling space is arranged on the desulfurization reactor; during desulfurization, flue gas enters a desulfurization reactor from the gas inlet, is desulfurized through a catalyst and is discharged from the gas outlet, sulfur dioxide in the flue gas reacts on the catalyst to form sulfuric acid when passing through the catalyst, and the sulfuric acid enters a regeneration liquid and is discharged from a liquid outlet when the catalyst is washed and regenerated; the bottom of the desulfurization reactor is of a funnel-shaped structure, and a liquid outlet of the desulfurization reactor is arranged at the bottom of the funnel-shaped structure; a support structure is arranged on the side wall of the desulfurization reactor above the funnel-shaped structure, and a catalyst filling space in the desulfurization reactor is arranged above the support structure and is used for bearing the weight of the catalyst in the catalyst filling space.
The bottom of the desulfurization reactor in the existing catalytic flue gas desulfurization equipment is required to be provided with support facilities such as upright posts (see patent document with publication number of CN114653202A, CN114797450A and the like), so the desulfurization reactor is designed to be a plane. However, the bottom of the desulfurization reactor is easy to be corroded by acid when the desulfurization reactor is used for a long time in practice. Through observation and analysis, the planar design of the bottom of the desulfurization reactor easily causes that the regeneration liquid is difficult to drain at the bottom of the desulfurization reactor, so that the regeneration liquid is locally accumulated, and the bottom of the desulfurization reactor is corroded by acid. The bottom of the desulfurization reactor is designed into a funnel-shaped structure, the liquid outlet of the desulfurization reactor is arranged at the bottom of the funnel-shaped structure, and meanwhile, the support structure is arranged above the funnel-shaped structure on the side wall of the desulfurization reactor and is used for bearing the weight of the catalyst in the catalyst filling space, so that the problem of acid corrosion at the bottom of the desulfurization reactor is effectively improved by designing the bottom of the desulfurization reactor into the funnel-shaped structure on the basis of canceling support facilities such as upright posts and the like built at the bottom of the desulfurization reactor, thereby avoiding aggregation of regenerated liquid.
In an eighth aspect, there is provided a catalytic flue gas desulfurization apparatus comprising: the desulfurization reactor is provided with an air inlet, an air outlet, a liquid outlet and a catalyst filling space in the desulfurization reactor, and a spray device for washing and regenerating the catalyst in the catalyst filling space is arranged on the desulfurization reactor; during desulfurization, flue gas enters a desulfurization reactor from the gas inlet, is desulfurized through a catalyst and is discharged from the gas outlet, sulfur dioxide in the flue gas reacts on the catalyst to form sulfuric acid when passing through the catalyst, and the sulfuric acid enters a regeneration liquid and is discharged from a liquid outlet when the catalyst is washed and regenerated; the top of the bottom of the desulfurization reactor is provided with a spraying device, the spraying device is used for spraying cleaning liquid to the bottom of the desulfurization reactor, and the cleaning liquid is discharged out of the desulfurization reactor through the liquid outlet.
In a ninth aspect, there is provided a catalytic flue gas desulfurization apparatus, which is based on the catalytic flue gas desulfurization apparatus of the eighth aspect, further comprising a prefabricated modular support unit that is prefabricated before the catalytic flue gas desulfurization apparatus is installed at a site of use, is mechanically assembled with other prefabricated modular support units up and down, and is used for installing and supporting a corresponding desulfurization reactor, the prefabricated modular support unit comprising: the device comprises a prefabricated modularized support unit body, a support frame and a support frame, wherein the prefabricated modularized support unit body is provided with a desulfurization reactor placing space, and the desulfurization reactor placing space is used for placing a corresponding desulfurization reactor; the first type of interfaces are arranged on the prefabricated modularized support unit body and realize the up-and-down mechanical assembly of the prefabricated modularized support unit body and other prefabricated modularized support unit bodies; the second type of interfaces are distributed on the prefabricated modularized support unit body and are used for connecting the desulfurization reactor in the prefabricated modularized support unit body with an external pipeline.
In a tenth aspect, there is provided a catalytic flue gas desulfurization assembly comprising at least two catalytic flue gas desulfurization units, each of which employs the catalytic flue gas desulfurization unit of the ninth aspect; in the at least two catalytic flue gas desulfurization devices, the prefabricated modularized support unit of each catalytic flue gas desulfurization device and the prefabricated modularized support units of the adjacent catalytic flue gas desulfurization devices are assembled together up and down mechanically to form the catalytic flue gas desulfurization tower.
The bottom of the desulfurization reactor in the existing catalytic flue gas desulfurization equipment is required to be provided with support facilities such as upright posts (see patent document with publication number of CN114653202A, CN114797450A and the like), so the desulfurization reactor is designed to be a plane. In practical use, it has been found that this design is prone to cause the regeneration liquid to be difficult to drain at the bottom of the desulfurization reactor, resulting in local accumulation of the regeneration liquid, and over time, prone to acid corrosion of the bottom of the desulfurization reactor. According to the flue gas desulfurization device adopting the catalytic method, the spraying device is arranged above the bottom of the desulfurization reactor and is used for spraying cleaning liquid to the bottom of the desulfurization reactor, and the cleaning liquid is discharged out of the desulfurization reactor through the liquid outlet, so that the cleaning liquid can be sprayed to the bottom of the desulfurization reactor through the spraying device, and the problem of acid corrosion at the bottom of the desulfurization reactor is effectively solved.
The disclosure is further described below with reference to the drawings and detailed description. Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice.
Drawings
The accompanying drawings, which form a part hereof, are included to provide an understanding of the disclosure, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of a flue gas desulfurization device by a catalytic method according to an embodiment of the disclosure.
Fig. 2 is a longitudinal sectional view of the catalytic flue gas desulfurization apparatus shown in fig. 1.
Fig. 3 is a partial enlarged view of fig. 2.
Fig. 4 is a schematic view of a supporting structure of an internal facility of a chemical tower according to an embodiment of the present disclosure.
Fig. 5 is a partial enlarged view of fig. 4.
Fig. 6 is a schematic structural view of a ventilation supporting board according to an embodiment of the present disclosure.
Fig. 7 is a cross-sectional view taken along A-A in fig. 6.
Fig. 8 is a sectional view taken along the direction B-B in fig. 6.
Fig. 9 is a schematic structural diagram of a catalytic flue gas desulfurization assembly according to an embodiment of the present disclosure.
Fig. 10 is a top view of fig. 9.
Fig. 11 is a schematic view showing the arrangement of the regeneration tank in fig. 9.
Fig. 12 is an enlarged view of a portion of the catalytic flue gas desulfurization apparatus of fig. 9.
Detailed Description
The present disclosure will now be described more fully hereinafter with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the solutions in this disclosure based on these descriptions. Before describing the present invention with reference to the accompanying drawings, it should be noted in particular that:
the technical solutions and technical features provided in the respective sections including the following description may be combined with each other without conflict. Furthermore, the described embodiments, features, and combinations of features can be combined as desired and claimed in any given application.
The embodiments of the present disclosure referred to in the following description are typically only a few, but not all, embodiments, based on which all other embodiments, as would be apparent to one of ordinary skill in the art without undue burden, are intended to be within the scope of patent protection.
The terms "comprising," "including," and any variations thereof in this disclosure and the corresponding claims and related sections are intended to cover a non-exclusive inclusion. Other related terms and units may be reasonably construed based on the description provided herein.
Related prior art that helps to increase the understanding of the following of the present disclosure includes patent document publication No. CN214764545U, CN114653202A, CN114797450 a. Accordingly, the contents of these patent documents may be regarded as background or reference materials of the following disclosure.
Example 1
Fig. 1 is a schematic structural diagram of a flue gas desulfurization device by a catalytic method according to an embodiment of the disclosure. Fig. 2 is a longitudinal sectional view of the catalytic flue gas desulfurization apparatus shown in fig. 1. Fig. 3 is a partial enlarged view of fig. 2. As shown in fig. 1 to 3, a catalytic flue gas desulfurization apparatus 1 includes: a desulfurization reactor 11, wherein the desulfurization reactor 11 has an air inlet 111, an air outlet 112, a liquid outlet 113, and a catalyst loading space 114 located in the desulfurization reactor 11, and a spray device 115 for washing and regenerating the catalyst in the catalyst loading space 114 is provided on the desulfurization reactor 11; flue gas enters the desulfurization reactor 11 from the gas inlet 111 during desulfurization, is desulfurized through a catalyst (not shown in the figure), and is discharged from the gas outlet 112, sulfur dioxide in the flue gas reacts on the catalyst to form sulfuric acid when passing through the catalyst, and the sulfuric acid enters a regeneration liquid and is discharged from the liquid discharge port 113 when washing and regenerating the catalyst; in addition, the catalytic flue gas desulfurization apparatus 1 further comprises a prefabricated modular support unit 12, wherein the prefabricated modular support unit 12 is prefabricated before the catalytic flue gas desulfurization apparatus is installed at a use site, is mechanically assembled with other prefabricated modular support units up and down for use, and is used for installing and supporting the corresponding desulfurization reactor 11, and the prefabricated modular support unit 12 comprises the following parts: a prefabricated modularized support unit body 121, wherein the prefabricated modularized support unit body 121 is provided with a desulfurization reactor placing space for placing a corresponding desulfurization reactor 11; a first type of interface 122, the first type of interface 122 being disposed on the prefabricated modular support unit body 121 and enabling up-and-down mechanical assembly of the prefabricated modular support unit body 121 with other prefabricated modular support unit bodies; the second type of interfaces 123, the second type of interfaces 123 are distributed on the prefabricated modular support unit body 121 and realize the connection between the desulfurization reactor 11 in the prefabricated modular support unit body 121 and an external pipeline.
The above-mentioned catalytic flue gas desulfurization device 1 adopts the prefabricated modularized support units 12, thereby realizing that the prefabricated modularized support units 12 of each catalytic flue gas desulfurization device 1 of the catalytic flue gas desulfurization assembly and the prefabricated modularized support units 12 of the adjacent catalytic flue gas desulfurization devices 1 are assembled together up and down mechanically to form a catalytic flue gas desulfurization tower, thereby remarkably improving the construction and use convenience of the catalytic flue gas desulfurization tower.
In a preferred embodiment, the prefabricated modular support unit body 121 is a cylinder (which may be made of stainless steel); the first type of interface 122 comprises flanges respectively arranged at the upper end opening and the lower end opening of the cylinder; the second type of interface 123 comprises at least one opening provided in the side wall of the cartridge for adapting to a corresponding external conduit.
Cartridges are the most common chemical containers with mature manufacturing, installation and use standards and sophisticated supply chain systems. Meanwhile, the anti-corrosion technology of the cylinder is mature and reliable. In addition, the cylinder is relatively space-saving and can achieve a good sealing effect. Designing the prefabricated modular support unit body 121 as a cylinder is an ideal solution taking into account a number of factors. On this basis, the first type of interface 122 comprises flanges respectively arranged at the upper end opening and the lower end opening of the cylinder, so that the up-down butt joint between different cylinders can be simply realized.
The prefabricated modular support unit body 121 may be a rectangular box, and the rectangular box may be one of the above-mentioned cylinders.
In a preferred embodiment, the inner wall of one of the sections of the cylinder forms the side wall of the desulfurization reactor 11 so that the desulfurization reactor 11 and the cylinder form a unitary structure. Therefore, the manufacturing cost of the flue gas desulfurization device 1 by the catalytic method can be saved, and meanwhile, the desulfurization reactor 11 and the cylinder body form an integrated structure, so that the assembly process required by independent design of the desulfurization reactor 11 and the cylinder body is omitted.
On this basis, generally, an upper partition 116 is disposed in the cylinder below the upper port of the cylinder, a lower partition 117 is disposed in the cylinder above the lower port of the cylinder, and the space between the upper partition 116 and the lower partition 117 in the cylinder forms the internal space of the desulfurization reactor 11.
At this time, the lower partition 117 may be designed in a funnel-shaped structure, and the drain 113 of the desulfurization reactor 11 is disposed at the bottom of the funnel-shaped structure.
The bottom of the desulfurization reactor in the existing catalytic flue gas desulfurization equipment is required to be provided with support facilities such as upright posts (see patent document with publication number of CN114653202A, CN114797450A and the like), so the desulfurization reactor is designed to be a plane. However, the bottom of the desulfurization reactor is easy to be corroded by acid when the desulfurization reactor is used for a long time in practice. Through observation and analysis, the planar design of the bottom of the desulfurization reactor easily causes that the regeneration liquid is difficult to drain at the bottom of the desulfurization reactor, so that the regeneration liquid is locally accumulated, and the bottom of the desulfurization reactor is corroded by acid. The lower partition 117 is designed into a funnel-shaped structure, and after the liquid outlet 113 of the desulfurization reactor 11 is arranged at the bottom of the funnel-shaped structure, the accumulation of regenerated liquid at the bottom of the desulfurization reactor 11 can be completely avoided, and the problem of acid corrosion at the bottom of the desulfurization reactor 11 is obviously improved.
Since the lower partition 117 is designed as a funnel-shaped structure, in order to facilitate the formation of the catalyst loading space 114 above the funnel-shaped structure, a support structure 2 may be provided on the side wall of the cylinder such that the catalyst loading space 114 is located above the support structure 2, and the weight of the catalyst in the catalyst loading space 114 is supported by the support structure 2. Thus, the support facilities such as the upright posts and the like built at the bottom of the desulfurization reactor are not needed. The specific details regarding the support structure will be specifically described later.
In addition, a gas permeable support material is typically laid over the support structure for the catalyst (which is often particulate). The gas-permeable support material may be a catalyst-supporting layer used in patent documents such as CN114653202A, CN114797450 a. Currently, ceramic corrugated packing is used for the catalyst support layer.
The ceramic corrugated filler is made of hard porcelain, and comprises silicon dioxide and aluminum oxide, and small amount of calcium oxide, magnesium oxide, potassium oxide, sodium oxide, ferric oxide and the like, and is prepared by adopting the processes of proportioning, ball milling, vacuum pugging, blank discharging, pressing, shaping, special sintering and the like, wherein the main raw materials are usually senior soil, feldspar and the like. Ceramic corrugated packing (also called ceramic orifice plate corrugated packing) is an orifice plate corrugated packing developed after the development and application of metal plate corrugated packing. The ceramic corrugated filler is composed of a plurality of filler units with the same geometric shape, and the filler units are corrugated sheets which are mutually parallel and overlapped. According to the difference of the vertical inclination angles of the corrugations, the corrugated steel plate can be divided into X-shaped inclination angles and Y-shaped inclination angles, wherein the X-shaped inclination angles are 30 degrees, and the Y-shaped inclination angles are 45 degrees. The ceramic corrugated filler has light weight and large ventilation flux, is suitable for large-volume towers, and has been widely applied in the industries of gas purification, chemical fertilizers, environmental protection, metallurgy and the like. When the catalyst is used for the catalyst bearing layer, at least two layers of ceramic corrugated fillers are required to be built on the installation and use site of the catalytic flue gas desulfurization equipment, the operation difficulty is high, the working time is long, and the cost for using the ceramic corrugated fillers is high.
Thus, a gas-permeable support sheet 3 was also developed for placing the catalyst instead of the ceramic corrugated packing described above. The specific details regarding the air-permeable support sheet material will be specifically described later.
In a preferred embodiment, as shown in fig. 12, a spraying device 118 is further disposed between the funnel-shaped structure and the supporting structure in the desulfurization reactor 11, and the spraying device 118 is used for spraying the cleaning solution onto the inner wall surface of the side wall of the funnel-shaped structure.
In this way, cleaning liquid (generally clean water) can be sprayed to the bottom of the desulfurization reactor through the spraying device 118, so that the problem of acid corrosion at the bottom of the desulfurization reactor 11 can be effectively solved.
Optionally, the spraying device 118 comprises a plurality of spray heads arranged at intervals along a circumference of the desulfurization reactor 11, and the spray heads are connected with a cleaning solution supply pipeline. Of course, the shower device 118 is not limited to the above specific configuration, and any shower device 118 is included as long as the shower device can shower the cleaning liquid on the bottom of the desulfurization reactor.
Generally, the exhaust port 112 of the desulfurization reactor 11 is disposed on the upper partition 116, and the inlet port 111 of the desulfurization reactor 11 is disposed on the side wall of the funnel-shaped structure.
Thus, the second type of interfaces may comprise (these second type of interfaces are all through holes formed in the sidewall of the cylinder): the air inlet pipe adapting port is used for adapting and installing an air inlet pipe connected with the air inlet 111 of the desulfurization reactor 11, is arranged on the side wall of the cylinder and is positioned at the side of the funnel-shaped structure; an exhaust pipe fitting port for fitting an exhaust pipe connected to the exhaust port 112 of the desulfurization reactor 11, provided on the cylinder side wall and above the side of the upper partition 116; the liquid discharge pipe adapting port is used for adapting and installing a liquid discharge pipe connected with the liquid discharge port 113 of the desulfurization reactor 11, is arranged on the side wall of the cylinder and is positioned at the side of the funnel-shaped structure; and a regeneration liquid pipe adapting port for adapting and installing a regeneration liquid pipe connected with the spraying device 115 of the desulfurization reactor 11, and arranged on the side wall of the cylinder and above the upper partition 116.
With respect to supporting structures
Fig. 4 is a schematic view of a supporting structure of an internal facility of a chemical tower according to an embodiment of the present disclosure. Fig. 5 is a partial enlarged view of fig. 4. The support structure 2 adopts a chemical tower internal facility support structure as shown in fig. 4-5. As shown in fig. 1 to 5, the support structure 2 comprises: a first transverse hole system 21, wherein the first transverse hole system 21 comprises a plurality of first transverse hole pairs formed on the side wall of the cylinder (namely, a chemical tower, the same applies below), and each first transverse hole pair of the plurality of first transverse hole pairs is composed of two first transverse through holes 211 which are arranged opposite to each other and respectively penetrate through the side wall of the cylinder; a first flange pipe group 22, wherein the first flange pipe group 22 comprises a plurality of first flange pipe pairs installed on the outer wall surface of the cylinder side wall, each first flange pipe pair of the plurality of first flange pipe pairs is composed of two first flange pipes 221 with inner ends respectively connected with two first transverse through holes corresponding to one first transverse hole pair in a butt joint manner, and two first flange covers 222 respectively installed at the outer ends of the two first flange pipes 221; the first supporting beam layer 23, the first supporting beam layer 23 comprises a plurality of first supporting beams 231 which are installed on the inner wall surface of the side wall of the cylinder body and are arranged at intervals, and two ends of each first supporting beam 231 in the plurality of first supporting beams 231 respectively pass through two first transverse through holes 211 corresponding to one first transverse hole pair and extend into two first flange pipes 221 corresponding to one first flange pipe pair.
The supporting structure 2 increases the contact area between the side wall of the cylinder body and the first supporting beam by arranging the first flange pipe group, and avoids stress concentration of the side wall of the cylinder body when bearing the weight of facilities such as the first supporting beam, the catalyst and the like.
In addition, the above-mentioned catalytic flue gas desulfurization device adopts the above-mentioned supporting structure 2 to bear the weight of the catalyst in the catalyst filling space, does not need to set up the stand column that uses in patent document such as publication number CN114653202A, CN114797450A in desulfurization reactor bottom, has simplified the internal structure of desulfurization reactor, helps optimizing the modularization design of catalytic flue gas desulfurization device.
In a preferred embodiment, the support structure 2 further comprises: a second transverse bore system 24 comprising a plurality of second transverse bore pairs formed in the barrel sidewall, each of the plurality of second transverse bore pairs being composed of two second transverse through holes disposed opposite each other and penetrating the chemical tower sidewall, respectively; a second flange pipe group 25 including a plurality of second flange pipe pairs mounted on an outer wall surface of the cylinder side wall, each of the plurality of second flange pipe pairs being composed of two second flange pipes 251 whose inner ends are respectively in butt joint conduction with two second transverse through holes of a corresponding one of the second transverse hole pairs, and two second flange covers 252 respectively mounted on outer ends of the two second flange pipes 251; a second supporting beam layer 26, wherein the second supporting beam layer 26 comprises a plurality of second supporting beams 621 which are arranged on the inner wall surface of the side wall of the cylinder at intervals, and two ends of each second supporting beam 261 in the plurality of second supporting beams 261 respectively pass through two second transverse through holes corresponding to one second transverse hole pair and extend into two second flange pipes 251 corresponding to one second flange pipe pair; the second supporting beams 261 in the second supporting beam layer 26 overlap over the first supporting beams 231 in the first supporting beam layer 23, the cross-sectional area of the second supporting beams 261 in the second supporting beam layer 26 is smaller than the cross-sectional area of the first supporting beams 231 in the first supporting beam layer 23, and the arrangement density of the second supporting beams 261 in the second supporting beam layer 26 is greater than the arrangement density of the first supporting beams 231 in the first supporting beam layer 23.
Therefore, the pressure applied to the side wall of the cylinder can be further dispersed, and the stress concentration of the side wall of the cylinder can be reduced. In addition, the second supporting beams 261 in the second supporting beam layer 26 are arranged at a higher density, so that deformation of the air-permeable supporting sheet material 3 due to uneven stress can be avoided.
Alternatively, as shown in fig. 5, one end of each of the plurality of first support beams 231 is connected to the first flange cover 222 on the first flange pipe 221, and the other end is separated from and spaced apart from the first flange cover 222 on the first flange pipe 221. Thereby, a gap is reserved for the length change caused by the expansion and contraction of the first supporting beam 231.
Optionally, a first prefabricated integral part is arranged between each first supporting beam of the plurality of first supporting beams and the first flange cover connected with the first supporting beam, and the first prefabricated integral part is installed into the chemical tower through inserting a corresponding first flange pipe from outside the chemical tower. Therefore, the first supporting beam can be conveniently installed.
Preferably, a first flange pipe in the first flange pipe group adopts a first flange pipe; the first supporting cross beam in the first supporting cross beam layer adopts a first square beam. Thereby, the first support beam 231 can be positioned better, and the first support beam 231 is prevented from moving laterally.
Similarly, optionally, one end of each second supporting beam of the plurality of second supporting beams is connected with the second flange cover on the second flange pipe, and the other end of each second supporting beam is separated from the second flange cover on the second flange pipe by a certain distance.
Similarly, optionally, a second prefabricated integral part is arranged between each second supporting beam of the plurality of second supporting beams and a second flange cover connected with the second supporting beam, and the second prefabricated integral part is installed in the chemical tower through inserting a corresponding second flange pipe from the outside of the chemical tower.
Similarly, optionally, a second flange pipe in the second flange pipe group adopts a second square flange pipe; and a second square beam is adopted as a second supporting beam in the second supporting beam layer.
Air-permeable support plate
Fig. 6 is a schematic structural view of a ventilation supporting board according to an embodiment of the present disclosure. Fig. 7 is a cross-sectional view taken along A-A in fig. 6. Fig. 8 is a sectional view taken along the direction B-B in fig. 6. As shown in fig. 2, 3, and 6 to 8, the air-permeable support sheet 3 includes: the outer structure 31 is a plate made of an organic polymer structure material, and ventilation holes 311 are distributed on the plate made of the organic polymer structure material; an internal structure 32, wherein the internal structure 32 is composed of a steel skeleton embedded in and covered by the organic polymer structural material.
The breathable support plate can achieve excellent structural strength while ensuring lighter weight, and can achieve good chemical stability by selecting proper organic high-molecular structural materials according to application environments. The ventilation supporting plate is applied to the flue gas desulfurization device by the catalytic method to place a catalyst, can replace a catalyst bearing layer (mainly comprising ceramic corrugated filler) used in patent documents with the publication number of CN114653202A, CN114797450A and the like, and has the advantages of strong acid corrosion resistance, difficult deformation after long-term use, convenient installation and replacement and lower use cost.
Here, the organic polymer structural material may be PP plastic or PPH plastic, which has excellent acid corrosion resistance.
Alternatively, the steel skeleton 32 is mainly composed of flat steel 321, and the width direction of the flat steel 321 is consistent with the thickness direction of the ventilation supporting plate. In this way, the structural strength and deformation resistance of the entire ventilation supporting plate 3 can be improved.
Optionally, the steel skeleton comprises a flat steel grating 322 composed of a plurality of flat steels 321 which are arranged in parallel and uniformly at intervals, and a group of ventilation holes are arranged between each pair of adjacent flat steels 321 in the flat steel grating 322. The provision of the flat steel grating 322 can further enhance the structural strength of the air-permeable support plate 3.
Optionally, the steel skeleton comprises a flat steel outer frame 323 formed by connecting a plurality of flat steels 32 end to end, the shape of the flat steel outer frame 323 is matched with the edge shape of the ventilation supporting plate 3, and two ends of each flat steel 321 in the flat steel grid 322 are respectively connected with two opposite frame edges on the flat steel outer frame 323.
Optionally, the set of ventilation holes includes at least two ventilation holes 311 arranged at intervals along the arrangement direction of the flat steels 321 in the flat steel grating 322.
Optionally, the at least two ventilation holes are bar-shaped holes, and the length direction of each bar-shaped hole is parallel to (see fig. 3) or perpendicular to (see fig. 6) the arrangement direction of each flat steel in the flat steel grid.
Optionally, the plate made of the organic polymer structural material has a thin-walled portion 312 and a thickened portion 313, the thickened portion 313 forms a reinforcing rib on the thin-walled portion 312, and the steel skeleton is distributed in the thickened portion 313. This contributes to the reduction of the overall weight of the air-permeable support sheet material 3 and also improves the structural strength of the air-permeable support sheet material 3.
Example two
The catalytic flue gas desulfurization device of the first embodiment is assembled into a catalytic flue gas desulfurization assembly. Fig. 9 is a schematic structural diagram of a catalytic flue gas desulfurization assembly according to an embodiment of the present disclosure. Fig. 10 is a top view of fig. 9. Fig. 11 is a schematic view showing the arrangement of the regeneration tank in fig. 9. Fig. 12 is an enlarged view of a portion of the catalytic flue gas desulfurization apparatus of fig. 9. As shown in fig. 9-12, the catalytic flue gas desulfurization assembly comprises at least two catalytic flue gas desulfurization devices 1, wherein in the at least two catalytic flue gas desulfurization devices 1, a prefabricated modularized support unit 12 of each catalytic flue gas desulfurization device 1 and a prefabricated modularized support unit 12 of an adjacent catalytic flue gas desulfurization device 1 are assembled together up and down mechanically to form a catalytic flue gas desulfurization tower.
The operation process and principle of the catalytic flue gas desulfurization tower are similar to those of the catalytic flue gas desulfurization tower in patent documents with the publication number of CN114653202A, CN114797450A and the like.
The content of the present invention is described above. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Based on the foregoing specification, all other embodiments that may be obtained by one of ordinary skill in the art without making any inventive effort shall fall within the scope of the invention.
Claims (10)
1. Chemical industry tower internal facility bearing structure, its characterized in that includes:
the first transverse hole system comprises a plurality of first transverse hole pairs which are arranged on the side wall of the chemical tower, wherein each first transverse hole pair of the plurality of first transverse hole pairs consists of two first transverse through holes which are arranged opposite to each other and respectively penetrate through the side wall of the chemical tower;
the first flange pipe group comprises a plurality of first flange pipe pairs which are arranged on the outer wall surface of the side wall of the chemical tower, wherein each first flange pipe pair of the plurality of first flange pipe pairs consists of two first flange pipes with inner ends respectively in butt joint conduction with two first transverse through holes corresponding to one first transverse hole pair and two first flange covers respectively arranged at the outer ends of the two first flange pipes;
The first supporting beam layer comprises a plurality of first supporting beams which are arranged on the inner wall surface of the side wall of the chemical tower at intervals, two ends of each first supporting beam in the plurality of first supporting beams respectively penetrate through two first transverse through holes corresponding to one first transverse hole pair and extend into two first flange pipes corresponding to one first flange pipe pair, and the plurality of first supporting beams are used for bearing the weight of the internal facilities of the chemical tower.
2. The chemical tower internal support structure of claim 1, wherein: one end of each first supporting beam in the plurality of first supporting beams is connected with the first flange cover on the first flange pipe, and the other end of each first supporting beam is separated from the first flange cover on the first flange pipe by a certain distance.
3. The chemical tower internal support structure of claim 2, wherein: and a first prefabricated integral part is arranged between each first supporting beam of the plurality of first supporting beams and a first flange cover connected with the first supporting beams, and is installed into the chemical tower through inserting a corresponding first flange pipe from the outside of the chemical tower.
4. The chemical tower internal support structure of claim 1, wherein: a first flange pipe in the first flange pipe group adopts a first flange pipe; the first supporting cross beam in the first supporting cross beam layer adopts a first square beam.
5. The chemical tower internal support structure of claim 1, comprising:
the second transverse hole system comprises a plurality of second transverse hole pairs which are arranged on the side wall of the chemical tower, and each second transverse hole pair of the plurality of second transverse hole pairs consists of two second transverse through holes which are arranged opposite to each other and respectively penetrate through the side wall of the chemical tower;
the second flange pipe group comprises a plurality of second flange pipe pairs which are arranged on the outer wall surface of the side wall of the chemical tower, wherein each second flange pipe pair of the plurality of second flange pipe pairs consists of two second flange pipes with inner side ends respectively in butt joint conduction with two second transverse through holes corresponding to one second transverse hole pair and two second flange covers respectively arranged at the outer side ends of the two second flange pipes;
the second supporting beam layer comprises a plurality of second supporting beams which are arranged on the inner wall surface of the side wall of the chemical tower at intervals, and two ends of each second supporting beam in the plurality of second supporting beams respectively pass through two second transverse through holes corresponding to one second transverse hole pair and extend into two second flange pipes corresponding to one second flange pipe pair;
The second supporting beams in the second supporting beam layer are lapped above the first supporting beams in the first supporting beam layer, the cross section area of the second supporting beams in the second supporting beam layer is smaller than that of the first supporting beams in the first supporting beam layer, and the arrangement density of the second supporting beams in the second supporting beam layer is larger than that of the first supporting beams in the first supporting beam layer.
6. The chemical tower internal support structure of claim 5, wherein: one end of each second supporting beam in the plurality of second supporting beams is connected with the second flange cover on the second flange pipe, and the other end of each second supporting beam is separated from the second flange cover on the second flange pipe by a certain distance.
7. The chemical tower internal support structure of claim 6, wherein: and a second prefabricated integral part is arranged between each second supporting beam in the plurality of second supporting beams and a second flange cover connected with the second supporting beams, and is installed into the chemical tower through inserting a corresponding second flange pipe from the outside of the chemical tower.
8. The chemical tower internal support structure of claim 5, wherein: a second flange pipe in the second flange pipe group adopts a second square flange pipe; and a second square beam is adopted as a second supporting beam in the second supporting beam layer.
9. A catalytic flue gas desulfurization apparatus comprising:
the desulfurization reactor is provided with an air inlet, an air outlet, a liquid outlet and a catalyst filling space in the desulfurization reactor, and a spray device for washing and regenerating the catalyst in the catalyst filling space is arranged on the desulfurization reactor;
during desulfurization, flue gas enters a desulfurization reactor from the gas inlet, is desulfurized through a catalyst and is discharged from the gas outlet, sulfur dioxide in the flue gas reacts on the catalyst to form sulfuric acid when passing through the catalyst, and the sulfuric acid enters a regeneration liquid and is discharged from a liquid outlet when the catalyst is washed and regenerated;
the method is characterized in that:
the device comprises a prefabricated modularized support unit, wherein the prefabricated modularized support unit is prefabricated before a catalytic flue gas desulfurization device is installed on a use site, is assembled with other prefabricated modularized support units up and down mechanically and is used for installing and supporting a corresponding desulfurization reactor, and the prefabricated modularized support unit comprises the following parts:
The device comprises a prefabricated modularized support unit body, a support frame and a support frame, wherein the prefabricated modularized support unit body is provided with a desulfurization reactor placing space, and the desulfurization reactor placing space is used for placing a corresponding desulfurization reactor;
the first type of interfaces are arranged on the prefabricated modularized support unit body and realize the up-and-down mechanical assembly of the prefabricated modularized support unit body and other prefabricated modularized support unit bodies;
the second type of interfaces are distributed on the prefabricated modularized support unit body and are used for realizing connection between the desulfurization reactor in the prefabricated modularized support unit body and an external pipeline;
wherein the desulfurization reactor is provided with the chemical tower internal facility supporting structure as claimed in any one of claims 1 to 8, the chemical tower internal facility supporting structure takes the side wall of the desulfurization reactor as the chemical tower side wall, the catalyst filling space of the desulfurization reactor is positioned above the chemical tower internal facility supporting structure, and the chemical tower internal facility supporting structure is used for bearing the weight of the catalyst in the catalyst filling space;
optionally, the bottom of the desulfurization reactor is of a funnel-shaped structure, and the liquid outlet of the desulfurization reactor is arranged at the bottom of the funnel-shaped structure.
10. The flue gas desulfurization component by a catalytic method is characterized in that: comprising at least two catalytic flue gas desulfurization units, each of which employs a catalytic flue gas desulfurization unit according to claim 9; in the at least two catalytic flue gas desulfurization devices, the prefabricated modularized support unit of each catalytic flue gas desulfurization device and the prefabricated modularized support units of the adjacent catalytic flue gas desulfurization devices are assembled together up and down mechanically to form the catalytic flue gas desulfurization tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310882502.0A CN117339384A (en) | 2023-07-18 | 2023-07-18 | Supporting structure of internal facility of chemical tower, catalytic flue gas desulfurization device and assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310882502.0A CN117339384A (en) | 2023-07-18 | 2023-07-18 | Supporting structure of internal facility of chemical tower, catalytic flue gas desulfurization device and assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117339384A true CN117339384A (en) | 2024-01-05 |
Family
ID=89356365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310882502.0A Pending CN117339384A (en) | 2023-07-18 | 2023-07-18 | Supporting structure of internal facility of chemical tower, catalytic flue gas desulfurization device and assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117339384A (en) |
-
2023
- 2023-07-18 CN CN202310882502.0A patent/CN117339384A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212549015U (en) | Integrated tower for producing acid by catalytic desulfurization | |
| KR102280896B1 (en) | Desulfurization absorption tower, method for setting up the same and method for operating the same | |
| AU2008251025B2 (en) | A reactor, plant and process | |
| CN105289279A (en) | Glass fiber reinforced plastic filler-type catalytic desulfurization tower | |
| CN117339384A (en) | Supporting structure of internal facility of chemical tower, catalytic flue gas desulfurization device and assembly | |
| CN116712860A (en) | Catalytic flue gas desulfurization device and assembly | |
| CN116688752A (en) | Catalytic flue gas desulfurization device and assembly | |
| CN116764433A (en) | Breathable support plate, catalytic flue gas desulfurization device and assembly | |
| CN116850777A (en) | Catalytic flue gas desulfurization device | |
| CN107243231B (en) | Desulfurizing tower | |
| CN105311956A (en) | Packing-type catalytic desulfurization tower with reinforced concrete structure | |
| CN213790887U (en) | Combined chemical washing deodorization tower | |
| CN210251833U (en) | Industrial waste gas integration clarification plant | |
| CN107126838B (en) | Flue gas desulfurization equipment line | |
| CN215610542U (en) | Desulfurizing tower thick liquid pond subregion oxidation unit | |
| CN219482210U (en) | Biological washing tower based on old packed tower transformation | |
| CN115350584B (en) | Catalytic flue gas desulfurization tower and maintenance method thereof | |
| CN219709427U (en) | Deacidifying ammonia still for titanium composite board | |
| CN218221814U (en) | CO2 absorption equipment for modular carbon capture skid block system | |
| CN114950128B (en) | Catalytic flue gas desulfurization tower | |
| CN210521892U (en) | Corrosion-resistant filter | |
| CN217746443U (en) | A spray column for flue gas deacidification | |
| CN114950127B (en) | Catalytic flue gas desulfurization tower | |
| CN219879546U (en) | Air lifting device with efficient dedusting and demisting functions | |
| CN212327648U (en) | Novel liquid collector device |
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 |