CN114618288A - Ventilation liquid locking assembly and combustible gas-containing tail gas three-stage spraying treatment equipment - Google Patents
Ventilation liquid locking assembly and combustible gas-containing tail gas three-stage spraying treatment equipment Download PDFInfo
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- CN114618288A CN114618288A CN202210290620.8A CN202210290620A CN114618288A CN 114618288 A CN114618288 A CN 114618288A CN 202210290620 A CN202210290620 A CN 202210290620A CN 114618288 A CN114618288 A CN 114618288A
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- 238000005507 spraying Methods 0.000 title claims abstract description 61
- 239000007788 liquid Substances 0.000 title claims description 55
- 238000009423 ventilation Methods 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 66
- 239000007789 gas Substances 0.000 claims description 64
- 239000007921 spray Substances 0.000 claims description 25
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000013022 venting Methods 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000001413 cellular effect Effects 0.000 claims description 2
- 206010015856 Extrasystoles Diseases 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000002912 waste gas Substances 0.000 description 9
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- 239000000126 substance Substances 0.000 description 8
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- 239000005662 Paraffin oil Substances 0.000 description 7
- 239000003513 alkali Substances 0.000 description 7
- 238000005984 hydrogenation reaction Methods 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
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- 239000002253 acid Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000036541 health Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910001872 inorganic gas Inorganic materials 0.000 description 1
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- 239000005416 organic matter Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- 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
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/06—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
-
- 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
- B01D53/1406—Multiple stage absorption
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- 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
- B01D53/1487—Removing organic compounds
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- 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
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- 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
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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- 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
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/40—Absorbents explicitly excluding the presence of water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/108—Hydrogen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- 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
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- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention belongs to the technical field of environmental protection, and particularly relates to a ventilating liquid-locking component and a combustible gas-containing tail gas three-stage spraying treatment device.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a ventilating liquid locking assembly and a three-stage spraying treatment device for tail gas containing inflammable gas.
Background
The relationship between human beings and chemical industry is very close, some chemical products play an epoch-making important role in the human development history, the production and the application of the chemical products even represent a certain historical stage of human civilization, and necessary basic substances are provided for various industrial departments from the formation of the chemical products. The waste gas discharged in chemical production often contains a lot of pollutants, has complex physical and chemical properties and different toxicity, seriously pollutes the environment and influences human health, and can be discharged into the atmosphere after being treated and detoxified by various means.
Hydrogenation is a chemical unit process, and the process of reacting organic matters with hydrogen is an important process for producing chemical products in modern industry. The hydrogenation reaction tail gas simultaneously contains inflammable and explosive hydrogen, organic VOC, inorganic gas and other pollutants, and the conventional activated carbon adsorption or CO/TO combustion process cannot safely and effectively treat the pollutants. Therefore, finding a waste gas treatment device with good treatment effect, convenient use and safety guarantee becomes an important concern in the pollution control industry.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide an aeration liquid-locking component and a combustible gas-containing tail gas three-stage spraying treatment device, which have the advantages of compact structure, small occupied area, classified and independent circulation of circulating liquid, no gas accumulation and the like.
In order to realize the purposes, the adopted technical scheme is as follows:
one purpose of the invention is to provide an air-through liquid-locking assembly, which comprises a cylinder, and a frustum cover and a double cone which are arranged in the cylinder, wherein the lower bottom edge of the frustum cover is fixedly arranged in the cylinder, a backflow pipe orifice is arranged on the cylinder in a position matched with the lower bottom edge of the frustum cover, the double cone is fixedly arranged above the frustum cover, and an air flow channel is reserved between the double cone and the frustum cover;
the bipyramid includes cone, lower cone, it is up to go up cone top, cone top down, the awl end diameter of going up the cone is greater than the awl end diameter of cone down and the last end diameter of frustum cover, it locates to go up the cone down the cone top, it is equipped with airflow channel to go up between cone and the lower cone, the awl top department of going up the cone is equipped with the air vent, the awl top department of cone is equipped with down the awl bottom tube down, down awl bottom tube slant downwardly extending to the conical surface top of frustum cover.
Further, the double cones are fixed above the frustum cover through connecting rods.
Still further, the connecting rods are strip-shaped, and at least three connecting rods are provided.
The invention also aims to provide a combustible gas-containing tail gas three-stage spraying treatment device comprising the ventilation and liquid locking component, which mainly comprises a cellular triple water tank, a vertical three-stage segmented independent spraying tower body, a circulating spraying component and a gas escape communicating pipeline, wherein the vertical three-stage segmented independent spraying tower body is divided into three stages of spraying of a spraying section A, a spraying section B and a spraying section C from top to bottom, each spraying section comprises a combined demister, a spraying head and a gas-liquid contactor from top to bottom, and the ventilation and liquid locking component is arranged below the gas-liquid contactor in the spraying section A and the spraying section B.
Furthermore, the grid triple water tank is formed by a circulation water tank A, a circulation water tank B and a circulation water tank C in a triple mode, and the internal liquid is water, paraffin oil and alkali liquor respectively and corresponds to the spraying liquid of the spraying section A, the spraying section B and the spraying section C of the spraying tower body.
Still further, A and B circulating water tank are located both ends, and C circulating water tank is located the centre, and C circulating water tank is located vertical tertiary segmentation independent spray tower body under.
Furthermore, the tops of the A and B circulating water tanks are connected with the spray tower body through gas escape communication pipelines with check valves, so that circulating liquid flows back and hydrogen gas entering the water tanks is guided into the tower body and discharged from the top of the tower, and meanwhile, nitrogen protective gas is introduced into the circulating water tanks.
Further, the gas-liquid contactor is a longitudinal baffle plate, and the combined demister is a combined structure of the longitudinal baffle plate and the centrifugal cyclone plate.
Still further, the longitudinal baffle plate comprises a longitudinal baffle plate inner framework, longitudinal baffle plate baffle blades and a longitudinal baffle plate outer support plate, and the centrifugal rotational flow plate comprises a centrifugal rotational flow plate inner blind plate, centrifugal rotational flow plate rotational flow blades and a centrifugal rotational flow plate outer support plate.
Further, the circulating spray assembly includes an inlet and outlet tower pipe from a circulating water tank.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts a single-tower three-stage independent spraying structure, three circulating liquids can be independently circulated, and waste gas is gradually washed from bottom to top.
2. The invention adopts a novel air-through liquid-locking component, the upper part of a connecting rod is usually directly provided with an upper cone in the prior art, as shown in figure 5, but in the structure, hydrogenation reaction tail gas enters from a frustum cover, although most of the hydrogenation reaction tail gas continues to move upwards after overflowing through a gap between the connecting rods, but still a part of the hydrogenation reaction tail gas can be accumulated at the cone top of the cone, and hydrogen belongs to inflammable gas which can generate combustion and explosion hidden troubles after accumulation, therefore, the invention has the important innovation points that the top of the upper cone is provided with an air hole, the bottom of the lower cone is provided with a liquid-discharging lower cone bottom pipe, and the connecting part of the upper cone and the lower cone is uniformly provided with air holes, the component structure can effectively collect circulating liquid falling from the upper part, prevent the circulating liquid of the layer from flowing to a lower circulating system with low resistance, and ensure that waste gas can pass through the air hole at the top of the cone originally, and the circulating liquid flowing down through the upper cone vent hole is received by the lower cone, is discharged into the cavity between the frustum cover and the cylinder body through the lower cone bottom pipe, and then returns to the circulating box through the backflow pipe orifice, so that any gas accumulation and gas storage point does not exist in the scheme, and the safety of the system is ensured.
3. The invention adopts a non-blocking gas-liquid contactor and a combined demister component, so that the tower body has no accumulation of dangerous gases such as hydrogen and the like, and the equipment safety is ensured. The gas-liquid contactor is a longitudinal baffle plate, and the gas-liquid contact effect is increased through the liquid film turbulent mass transfer effect of gas-liquid reverse baffling; the combined demister is a combined structure of a longitudinal baffle plate and a centrifugal cyclone plate, and gas-liquid separation is realized through baffle collision and cyclone centrifugal force.
4. The circulating water tank adopts the gas escape communicating pipeline with the check valve to connect the top of the water tank with the tower body, so that circulating liquid flows back, hydrogen gas entrained in the water tank is introduced into the tower body and discharged from the top of the tower, meanwhile, nitrogen protective gas is introduced into the circulating water tank, harmful gases such as hydrogen in the water tank are swept by using nitrogen, and the harmful gases are introduced into the tower body from the gas escape communicating pipeline to ensure that dangerous gases are not accumulated.
5. The invention adopts three-stage circulating liquid of 'alkali liquor + paraffin oil + water' to elute and absorb, the first-stage alkali liquor absorbs and removes acid and water-soluble pollutants in the tail gas, the second-stage paraffin oil absorbs and removes organic pollutants of organic solvents in the tail gas by the similar intermiscibility principle, and the third-stage circulating water is adopted to strengthen and remove the pollutants in the waste gas, so that the equipment can treat the waste gas up to the standard.
Drawings
FIG. 1 is a schematic view of a three-stage spray treatment device for tail gas containing flammable gas according to the present invention;
FIG. 2 is a schematic view of the venting and fluid-locking assembly of the present invention;
FIG. 3 is a schematic view of a centrifugal swirl plate;
FIG. 4 is a schematic view of a longitudinal baffle;
FIG. 5 is a schematic view of a prior art venting and fluid-locking assembly;
wherein, 1, A spraying section; 2. b, a spraying section; 3. c, a spraying section; 4. a, circulating a water tank; 5. b, circulating a water tank; 6. c, circulating a water tank; 7. a combined demister; 8. a gas-liquid contactor; 9. a ventilation liquid locking component; 10. a gas escape communication pipeline; 11. a bicone; 111. an upper cone; 112. a lower cone; 113. a lower conical bottom tube; 12. a frustum cover; 13. a connecting rod; 14. a shower head; 15. a return pipe orifice; 711. a blind plate in the centrifugal rotational flow plate; 712. a centrifugal swirl plate swirl vane; 713. an outer support plate of the centrifugal rotational flow plate; 811. a longitudinal baffle inner frame; 812. longitudinal baffle plate baffle blades; 813. and the outer support plate of the longitudinal baffle plate.
Detailed Description
The present invention is described below with reference to examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
A three-stage spraying treatment device for tail gas containing inflammable gas is shown in figure 1 and mainly comprises a grid triple water tank, a vertical three-stage segmented independent spraying tower body, a circulating spraying assembly and a gas escape communicating pipeline 10, wherein the vertical three-stage segmented independent spraying tower body is divided into three stages of spraying of an A spraying section 1, a B spraying section 2 and a C spraying section 3 from top to bottom, the grid triple water tank is formed by triple of an A circulating water tank 4, a B circulating water tank 5 and a C circulating water tank 6, the upper parts of the A circulating water tank 4, the B circulating water tank 5 and the C circulating water tank 6 are communicated, the A circulating water tank 4 and the B circulating water tank 5 are positioned at two ends, the C circulating water tank 6 is positioned in the middle, the C circulating water tank 6 is positioned right below the vertical three-stage segmented independent spraying tower body, the tops of the B circulating water tank 5 and the A circulating water tank 4 are connected with the spraying tower body through the gas escape communicating pipeline 10 with a check valve, the circulating liquid is enabled to flow back and is entrained into the hydrogenation reaction tail gas in the water tank to be led into the tower body and discharged from the top of the tower, meanwhile, a pipeline connected with the protective gas is arranged at the upper part of the circulating water tank, the nitrogen protective gas is led into the circulating water tank, the harmful gas in the water tank is swept by the nitrogen, and the harmful gas is led into the tower body from the gas escape communicating pipeline 10, so that the dangerous gas is prevented from accumulating and can be effectively filtered; the equipment adopts "alkali lye + paraffin oil + water" tertiary circulating liquid drip washing absorption, correspond A circulating water tank 4, B circulating water tank 5, the inside liquid of C circulating water tank 6 is water respectively, paraffin oil, alkali lye, correspond A spray segment 1 of spray tower body simultaneously, the spray liquid of B spray segment 2 and C spray segment 3, the acid and the water-soluble pollutant of 3 alkali lye of first order C spray segment in to tail gas absorb and get rid of, the organic solvent class organic matter pollutant of second level B spray segment 2 paraffin oil in to tail gas absorbs through similar intermiscibility principle and gets rid of, third level A spray segment 1 adopts the circulating water to strengthen getting rid of in the waste gas pollutant, make equipment carry out standard treatment to waste gas.
Each of the spraying sections of the spraying section A1, the spraying section B2 and the spraying section C3 comprises a combined demister 7, a spraying head 14 and a gas-liquid contactor 8 from top to bottom, wherein the spraying section A1 and the spraying section B2 are also provided with a ventilation liquid locking component 9 below the gas-liquid contactor 8, the gas-liquid contactor 8 is a longitudinal baffle plate, and the structure of the longitudinal baffle plate is shown in figure 4 and comprises a longitudinal baffle plate inner framework 811, longitudinal baffle plate baffle blades 812, a longitudinal baffle plate outer support plate 813, and a plurality of longitudinal baffle plate baffle blades 812 are arranged side by side and fixed on the longitudinal baffle plate inner framework 811 and the longitudinal baffle plate outer support plate 813; the combined demister 7 is a combined structure of a longitudinal baffle plate and a centrifugal cyclone plate, gas-liquid separation is realized through baffle collision and cyclone centrifugal force, the structure of the centrifugal cyclone plate is shown in fig. 3 and comprises an inner blind plate 711 of the centrifugal cyclone plate, a cyclone blade 712 of the centrifugal cyclone plate and an outer support plate 713 of the centrifugal cyclone plate, the inner blind plate 711 of the centrifugal cyclone plate is arranged in the middle, and two ends of the cyclone blades 712 of the centrifugal cyclone plate are respectively connected to the inner blind plate 711 of the centrifugal cyclone plate and the outer support plate 713 of the centrifugal cyclone plate.
The structure of the ventilation liquid locking assembly 9 is shown in fig. 2, the ventilation liquid locking assembly 9 mainly comprises a cylinder, and a frustum cover 12 and a double cone 11 which are arranged in the cylinder, wherein the lower bottom edge of the frustum cover 12 is fixedly arranged in the cylinder, the frustum cover 12 is hollow, i.e. has no upper bottom and no lower bottom, a backflow pipe orifice 15 is arranged at a position on the cylinder which is matched with the lower bottom edge of the frustum cover 12, the double cone 11 is fixedly arranged above the frustum cover 12, the double cone 11 is fixed above the frustum cover 12 through a connecting rod 13, the connecting rod 13 is in a strip shape, and at least three connecting rods are used for supporting the lower cone 112; bicone 11 includes cone 111, lower cone 112, cone 111 vertex of a cone up, cone 112 vertex of a cone down, the cone bottom diameter of last cone 111 is greater than cone 112's the cone bottom diameter down with cone cover 12's last end diameter, it locates to go up cone 111 cone 112 top down, it is equipped with the air vent to go up between cone 111 and the lower cone 112, the vertex of a cone department of going up cone 111 also is equipped with the air vent, and cone 112's the vertex of a cone department is equipped with down cone bottom tube 113 down, cone bottom tube 113 extends downwards in the slant to cone cover 12's the conical surface top.
The circulating liquid falling from the upper part can be effectively collected under the component structure, the circulating liquid on the layer is prevented from flowing to a lower circulating system, and the low-resistance passing of the waste gas can be ensured. Vent holes are arranged at the joint of the upper cone 111 and the lower cone 112, so that hydrogen accumulation at the joint of the upper cone and the lower cone can be avoided, the original gas accumulated at the top of the cone of the upper cone 111 can overflow through the vent holes at the top of the upper cone 111, the circulating liquid flowing down through the vent holes of the upper cone 111 is received by the lower cone 112, and is discharged into a cavity between the cone table cover 12 and the cylinder body through the lower cone bottom pipe 113 and then returns to the circulating box through the backflow pipe orifice 15, so that the gas in the double cone 11 can not be accumulated, and the danger is reduced.
The circulating spray assembly comprises a tower inlet pipeline from the circulating water tank, water from the A circulating water tank 4 enters a spray header 14 between the combined demister 7 and the gas-liquid contactor 8 through a pipeline, is sprayed out from the spray header 14, reaches the ventilating and liquid-locking assembly 9 through the gas-liquid contactor 8 below, then flows back to the A circulating water tank 4 through a return pipe orifice 15 at the bottom of the ventilating and liquid-locking assembly 9, paraffin oil from the B circulating water tank 5 enters the spray header 14 between the combined demister 7 and the gas-liquid contactor 8 through a pipeline, is sprayed out from the spray header 14, reaches the ventilating and liquid-locking assembly 9 through the gas-liquid contactor 8 below, then flows back to the B circulating water tank 5 through the return pipe orifice 15 at the bottom of the ventilating and liquid-locking assembly 9, alkali liquor from the C circulating water tank 6 enters the spray header 14 between the combined demister 7 and the gas-liquid contactor 8 through a pipeline, is sprayed out from the spray header 14, directly enters the C circulating water tank 6 right below through the gas-liquid contactor 8 below, air inlets are arranged below the C spraying section gas-liquid contactor 8 and above the C circulating water tank 6, and the hydrogenation reaction tail gas to be treated enters the spray tower through the air inlets, sequentially passes through the C spraying section 3, the B spraying section 2 and the A spraying section 1 and is discharged from an exhaust port at the top of the tower.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. The ventilation liquid locking assembly is characterized by comprising a cylinder, and a frustum cover (12) and a double cone (11) which are arranged in the cylinder, wherein the lower bottom edge of the frustum cover (12) is fixedly arranged in the cylinder, a backflow pipe orifice (15) is arranged on the cylinder in a position matched with the lower bottom edge of the frustum cover (12), the double cone (11) is fixedly arranged above the frustum cover (12), and an airflow channel is reserved between the double cone and the frustum cover (12);
bipyramid (11) are including last cone (111), lower cone (112), it is up to go up cone (111) vertex of a cone, lower cone (112) vertex of a cone is down, the awl end diameter of going up cone (111) is greater than the awl end diameter of lower cone (112) with the last end diameter of frustum cover (12), it locates to go up cone (111) cone (112) top down, it is equipped with airflow channel to go up between cone (111) and lower cone (112), the vertex of a cone department of going up cone (111) is equipped with the air vent, the vertex of a cone department of cone (112) is equipped with down awl bottom tube (113), awl bottom tube (113) extend downwards in slant to the conical surface top of frustum cover (12) down.
2. The venting lock liquid assembly according to claim 1, wherein the double cone (11) is fixed above the frustum cover (12) by a connecting rod (13).
3. The venting lock liquid assembly according to claim 2, wherein said connecting rods (13) are in the form of a bar, at least three.
4. The utility model provides a contain combustible gas tail gas tertiary spray treatment facility which characterized in that, mainly includes box trigeminy water tank, vertical tertiary segmentation independent spray tower body, circulation spray assembly, ease gas UNICOM pipeline (10), wherein, vertical tertiary segmentation independent spray tower body top-down divide into the tertiary spraying of A shower section (1), B shower section (2) and C shower section (3), every shower section all includes top-down combination defroster (7), shower head (14) and gas-liquid contactor (8), wherein A shower section (1) and B shower section (2) still are equipped with the lock liquid subassembly of ventilating (9) of claim 1 below gas-liquid contactor (8).
5. The three-stage spraying treatment equipment for tail gas containing inflammable gas according to claim 4, wherein the cellular triple water tank is divided into an A circulating water tank (4), a B circulating water tank (5) and a C circulating water tank (6), and spraying liquids of an A spraying section (1), a B spraying section (2) and a C spraying section (3) of the corresponding spraying tower body are stored respectively.
6. The three-stage spraying treatment equipment for tail gas containing inflammable gases, according to the claim 5, is characterized in that the C circulating water tank (6) is located right below the vertical three-stage segmented independent spraying tower body.
7. The three-stage spraying treatment equipment for tail gas containing inflammable gases, according to claim 5, is characterized in that the top of the B circulation water tank (5) and the top of the A circulation water tank (4) are connected with a spraying tower body through a gas escape communicating pipeline (10), and the upper part of the circulation water tank is provided with a pipeline connected with a protective gas.
8. The tertiary spraying treatment equipment for tail gas containing combustible gas according to claim 4, wherein the gas-liquid contactor (8) is a longitudinal baffle plate, and the combined demister (7) is a combined structure of the longitudinal baffle plate and a centrifugal cyclone plate.
9. The tertiary spray treatment equipment for tail gas containing inflammable gas according to claim 8, wherein the longitudinal baffle comprises a longitudinal baffle inner frame (811), longitudinal baffle blades (812) and a longitudinal baffle outer support plate (813), wherein a plurality of longitudinal baffle blades (812) are arranged side by side and fixed on the longitudinal baffle inner frame (811) and the longitudinal baffle outer support plate (813); the centrifugal cyclone plate comprises an inner blind plate (711) of the centrifugal cyclone plate, a cyclone blade (712) of the centrifugal cyclone plate and an outer support plate (713) of the centrifugal cyclone plate, wherein the inner blind plate (711) of the centrifugal cyclone plate is arranged in the middle, and the two ends of the cyclone blade (712) of the centrifugal cyclone plate are respectively connected to the inner blind plate (711) of the centrifugal cyclone plate and the outer support plate (713) of the centrifugal cyclone plate.
10. The three-stage spraying treatment equipment for the tail gas containing the inflammable gases, according to the claim 4, is characterized in that the circulating spraying assembly comprises an inlet and outlet tower pipeline from a circulating water tank.
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| CN202210290620.8A CN114618288B (en) | 2022-03-23 | 2022-03-23 | Three-stage spraying treatment equipment for ventilation liquid locking assembly and tail gas containing inflammable gas |
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| CN202210290620.8A CN114618288B (en) | 2022-03-23 | 2022-03-23 | Three-stage spraying treatment equipment for ventilation liquid locking assembly and tail gas containing inflammable gas |
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| CN114618288B CN114618288B (en) | 2023-12-26 |
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| CN114618288B (en) | 2023-12-26 |
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