CN109200819B - Ship tail gas treatment device and dual-rotor hypergravity reactor thereof - Google Patents

Ship tail gas treatment device and dual-rotor hypergravity reactor thereof Download PDF

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CN109200819B
CN109200819B CN201811268117.2A CN201811268117A CN109200819B CN 109200819 B CN109200819 B CN 109200819B CN 201811268117 A CN201811268117 A CN 201811268117A CN 109200819 B CN109200819 B CN 109200819B
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reaction chamber
hollow shaft
cavity
rotor
hypergravity reactor
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CN109200819A (en
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刘少俊
董政文
高蒙
崔梦祺
何佳豪
宋印东
冯国增
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Jiangsu University of Science and Technology
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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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • 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
    • B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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

Abstract

The invention discloses a ship tail gas treatment device and a double-rotor hypergravity reactor thereof, wherein the double-rotor hypergravity reactor comprises a motor, a first reaction chamber and a second reaction chamber, wherein rotors are arranged in the first reaction chamber and the second reaction chamber, a motor shaft of the motor drives the rotors to rotate through a hollow shaft, and a through hole is formed in the part of the hollow shaft, which is in contact with the rotors; the outer sides of the first reaction chamber and the second reaction chamber are provided with a first cavity and a second cavity, and through holes are formed in the parts, located in the first cavity and the second cavity, of the hollow shaft. The tail gas washed by solid particles is subjected to higher rotation speed in the double-rotor hypergravity reactor on the basis of the double-rotor hypergravity reactor, and the higher rotation speed can generate larger shearing force, SO that SO in the tail gas2With NaOH solution, NOXAnd H2O2The reaction of the solution is more sufficient, the tail gas treatment efficiency is improved, the consumed energy is reduced, and an additional product Na is generated2SO4And HNO3。

Description

Ship tail gas treatment device and dual-rotor hypergravity reactor thereof
Technical Field
The invention relates to a tail gas treatment device, in particular to a ship tail gas treatment device and a dual-rotor hypergravity reactor thereof.
Background
In recent years, with the prosperity of international and domestic shipping, SO in marine diesel engine exhaust2With NOXThe air environment is increasingly seriously affected, and the health of human beings is directly threatened. In order to effectively control atmospheric pollution and win blue sky guard war, the department of communication in 2015 prints' Zhu triangle, Long triangle, and Hua Bohai sea (Jingjin Ji) waterThe scheme provides that fuel oil with the sulfur content less than or equal to 0.5 percent is used during the berthing of all ports in the emission control area from 2018, 1 month and 1 day. And from 1 month and 1 day in 2019, fuel oil with the sulfur content of less than or equal to 0.5 percent is used when the ship enters the emission control area. Meanwhile, the International Maritime Organization (IMO) agreed in 2016 to practice the global 0.5% fuel sulfur content standard at MEPC70 conference on 2020, 1 month and 1 day, and was released as RESOLUTION mepc.280 (70). For 0.5% low sulfur fuel requirements, exhaust gas after-treatment alternatives can be used, such as selective Exhaust Gas Cleaning Systems (EGCS), which can use high sulfur oil (HFO), with the advantage of low operating costs. In order to comply with the maritime organization's global nitrogen oxide limits and to enforce stricter standards in emission control areas, marine diesel engines must develop new technologies to reduce NOx from the marine exhaust system. Considering the limit of the installation space of the ship, the tail gas treatment device is adopted to simultaneously remove NOx and SO2Becomes an alternative.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a ship tail gas treatment device and a double-rotor hypergravity reactor thereof, and solves the problem that a conventional reactor or a single-rotor reactor cannot completely treat harmful substances in tail gas.
The technical scheme is as follows: the invention relates to a dual-rotor hypergravity reactor, which comprises a motor, a first reaction chamber and a second reaction chamber, wherein rotors are arranged in the first reaction chamber and the second reaction chamber, a motor shaft of the motor drives the rotors to rotate through a hollow shaft, and a through hole is formed in the part of the hollow shaft, which is in contact with the rotors; the outer sides of the first reaction chamber and the second reaction chamber are provided with a first cavity and a second cavity, and through holes are formed in the parts, located in the first cavity and the second cavity, of the hollow shaft.
Furthermore, the hollow shaft is formed by welding two stainless steel seamless hollow steel pipes with equal cross-sectional areas, and a welding point between the stainless steel seamless hollow steel pipes is positioned in the first cavity and close to one end of the second reaction chamber; the two ends of the stainless steel seamless hollow steel pipe are provided with polytetrafluoroethylene end sockets for sealing, so that two independent end sockets are formedSpace for filling NaOH solution and H respectively2O2And (3) solution.
Further, the first reaction chamber and the second reaction chamber are connected through a U-shaped pipe and are used for communicating tail gas for further treatment.
Further, a flange coupling is arranged between the hollow shaft and the motor shaft; v-shaped sealing devices are arranged at the contact parts of the hollow shaft and the first reaction chamber and the second reaction chamber; the hollow shaft is connected to the rotor via a fastening element.
Furthermore, the V-shaped sealing device comprises an L-shaped support, V-shaped sealing rings and O-shaped rings are arranged on two sides of one side, close to the hollow shaft, of the L-shaped support, and the V-shaped sealing rings are in contact with the hollow shaft; the first reaction chamber and the second reaction chamber are fixedly connected with one sides of the corresponding L-shaped brackets far away from the hollow shaft through fastening screws; and a rolling bearing is arranged on the inner side of one side of the L-shaped support close to the hollow shaft.
A ship tail gas treatment device provided with the double-rotor hypergravity reactor comprises a Venturi scrubber and a hydrocyclone, wherein an exhaust port and a liquid discharge port at the bottom of the Venturi scrubber are respectively connected with a first reaction chamber of the double-rotor hypergravity reactor and a liquid inlet of the hydrocyclone, and an air inlet at the top of the Venturi scrubber is connected with a waste gas inlet through a fan; and the second reaction chamber of the dual-rotor hypergravity reactor is connected with a waste gas outlet through a demister.
Furthermore, a liquid outlet of the hydrocyclone is connected with a liquid inlet of the Venturi scrubber through a water pump, and a sand setting port of the hydrocyclone is connected with the waste residue groove; the water pump is also connected with the water tank; in the venturi scrubber, fresh water is used for washing tail gas, and the washed waste liquid is separated from particles by the hydrocyclone and then is sent to the venturi scrubber for recycling by the water pump.
Further, solution recovery storage tanks are arranged at the bottoms of the first reaction chamber and the second reaction chamber of the dual-rotor hypergravity reactor, and a first cavity and a second cavity of the dual-rotor hypergravity reactor are connected with the solution tank through anti-corrosion diaphragm pumps; NaOH solution and H2O2The solution is respectively pumped into a first cavity and a second cavity of the dual-rotor hypergravity reactor by the anti-corrosion diaphragm pump and then flows out from a through hole at the position of the rotor.
Further, the waste gas inlet is connected with the waste gas outlet through a fan; valves are arranged between the fan and the air inlet at the top of the Venturi scrubber, between the fan and the waste gas outlet and between the demister and the waste gas outlet; through the switch valve, can overhaul ship exhaust treatment device.
Has the advantages that: the invention takes a double-rotor hypergravity reactor as a basis, tail gas after solid particle washing obtains higher rotating speed in the double-rotor hypergravity reactor, and the higher rotating speed can generate larger shearing force, thereby NaOH solution and H are mixed2O2The solution is decomposed into finer liquid drops, so that the effective contact area of gas and liquid is enlarged; in addition, the tail gas is mixed with NaOH solution and H2O2The collision between the solutions is increased, and the higher rotating speed can also lead to the acceleration of the gas-liquid phase renewal speed, thereby leading to SO in the tail gas2With NaOH solution, NOXAnd H2O2The reaction of the solution is more sufficient, the tail gas treatment efficiency is improved, and the cost can be saved for controlling the pollutants of the ship; finally, the purified tail gas is discharged into the atmosphere, and industrial raw materials of sodium sulfate and nitric acid are generated, so that waste utilization is realized, and excellent economic and environmental benefits are achieved.
Drawings
FIG. 1 is a schematic diagram of the internal structure of a dual-rotor hypergravity reactor;
FIG. 2 is a schematic diagram of the external structure of a dual-rotor hypergravity reactor;
FIG. 3 is a schematic view of a flange coupling construction;
FIG. 4 is a schematic structural view of a fixing member;
fig. 5 is a schematic structural view of the V-shaped sealing device.
FIG. 6 is a schematic structural diagram of a marine exhaust gas treatment device according to the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The invention is further described below with reference to the following figures and examples:
as shown in fig. 1, the dual-rotor supergravity reactor in the ship tail gas treatment device of the present invention comprises a motor 1, a first reaction chamber 2 and a second reaction chamber 3, wherein rotors 4 are respectively arranged in the first reaction chamber 2 and the second reaction chamber 3, fillers are loaded in the rotors 4, a motor shaft 11 of the motor 1 drives the rotors 4 to rotate through a hollow shaft 5, i.e., the fillers of the rotors 4 are driven to rotate, the centrifugal acceleration generated by the rotation can reach 20-500 times of the gravity acceleration, and the mass transfer rate can be increased by 1-2 orders of magnitude under the action of the centrifugal force field; higher rotational speed can produce great shearing force to break up liquid into more tiny liquid drop, enlarge the effective area of contact of gas-liquid. Simultaneously the tail gas and NaOH solution or H2O2The collision between the solutions is increased, and the higher rotating speed can also lead to the acceleration of the gas-liquid phase renewal speed, thereby leading to SO in the tail gas2With NaOH solution, NOXAnd H2O2The reaction of the solution is more sufficient, thereby improving the tail gas treatment efficiency.
The part of the hollow shaft 5 contacting the rotor 4 is provided with a through hole 51; a first cavity 6 and a second cavity 7 are arranged at the outer sides of the first reaction chamber 2 and the second reaction chamber 3, and a through hole 51 is also arranged at the part of the hollow shaft 5 positioned in the first cavity 6 and the second cavity 7; the hollow shaft 5 is formed by welding two stainless steel seamless hollow steel pipes 52 with equal cross-sectional areas, and a welding point between the stainless steel seamless hollow steel pipes 52 is positioned in the first cavity 6 and close to one end of the second reaction chamber 3; the two ends of the stainless steel seamless hollow steel pipe 52 are provided with polytetrafluoroethylene end sockets 53 for sealing, so that two independent spaces for filling NaOH solution and H solution can be formed2O2A solution; NaOH solution enters the first cavity 6, enters the hollow shaft 5 through the through hole 51 in the first cavity 6, flows out through the through hole 51 of the part of the hollow shaft 5 contacting with the rotor 4, enters the rotor filler, and is enabled to be in contact with SO in tail gas2Fully react, in the same way as H2O2The solution enters the second cavity 7, enters the hollow shaft 5 through the through hole 51 in the second cavity 7, flows out through the through hole 51 of the part of the hollow shaft 5 contacted with the rotor 4, enters the rotor filler, and is fully reacted with NOx in the tail gas.
As shown in fig. 2, in the first reaction chamber 2, the desulfurized tail gas enters the second reaction chamber 3 through the U-shaped pipe 8, and the tail gas is further treated.
As shown in fig. 3, a flange coupling 9 is disposed between the hollow shaft 5 and the motor shaft 11, the flange coupling 9 connects the hollow shaft 5 and the motor shaft 11 through a locking screw 91, and a washer 92 is disposed at the connection between the hollow shaft 5 and the motor shaft 11 for preventing the hollow shaft 5 from colliding with the motor shaft 11.
As shown in fig. 5, since the hollow shaft 5 passes through the first reaction chamber 2 and the second reaction chamber 3, V-shaped sealing devices 10 are disposed at the positions 5 where the hollow shaft 5 contacts the first reaction chamber 2 and the second reaction chamber 3, each V-shaped sealing device 10 includes an L-shaped bracket 105, both sides of each L-shaped bracket 105 are in close contact with the walls of the corresponding first reaction chamber 2 and the corresponding second reaction chamber 3, and at the same time, V-shaped sealing rings 101 and O-rings 104 are disposed at both sides of one side of each L-shaped bracket 105 close to the hollow shaft 5, and the V-shaped sealing rings 101 are in contact with the hollow shaft 5, the V-shaped sealing rings 101 and the O-rings 104 are embedded between the reaction chambers and the hollow shaft 5, and the L-shaped brackets 105, the V-shaped sealing rings 101 and the O-rings 104 increase the sealing effect, thereby further preventing NaOH2O2The solution flows out from the hollow shaft 5; the first reaction chamber 2 and the second reaction chamber 3 are fixedly connected with one sides of the corresponding L-shaped brackets 105 far away from the hollow shaft 5 through fastening screws 103; the rolling bearing 102 is arranged on the inner side of one side of the L-shaped bracket 105 close to the hollow shaft 5.
As shown in fig. 4, the hollow shaft 5 and the rotor 4 are connected by a fixing element 12, and in particular, the hollow shaft 5 and the rotor 4 are fixedly connected by a fastening bolt 121 on the fixing element 12.
As shown in fig. 6, the marine exhaust gas treatment device of the present invention comprises a dual-rotor hypergravity reactor, and further comprises a venturi scrubber 13 and a hydrocyclone 14, wherein an exhaust port and a liquid discharge port at the bottom of the venturi scrubber 13 are respectively connected with a first reaction chamber 2 of the dual-rotor hypergravity reactor and a liquid inlet of the hydrocyclone 14, and a gas inlet at the top of the venturi scrubber 13 is connected with a waste gas inlet 16 through a fan 15; the second reaction chamber 3 of the double-rotor hypergravity reactor is connected with a waste gas outlet 18 through a demister 17;
the liquid outlet of the hydrocyclone 14 is connected with the liquid inlet of the Venturi scrubber 13 through a water pump 19, and the sand setting port of the hydrocyclone 14 is connected with a waste residue groove 20; in the venturi scrubber 13, the tail gas is scrubbed by fresh water, the washed waste liquid is separated from particles by the hydrocyclone 14 and then sent to the venturi scrubber 13 for recycling by the water pump 19, and the water pump 19 is further connected with the water tank 25.
The bottoms of the first reaction chamber 2 and the second reaction chamber 3 of the dual-rotor hypergravity reactor are both provided with a solution recovery storage tank 21, wherein the solution recovery storage tank 21 arranged at the bottom of the first reaction chamber 2 is Na2SO4A solution recovery storage tank, wherein the solution recovery storage tank 21 arranged at the bottom of the second reaction chamber 3 is HNO3A solution recovery storage tank; the first cavity 6 and the second cavity 7 of the dual-rotor hypergravity reactor are both connected with a solution tank 23 through an anti-corrosion diaphragm pump 22, wherein the solution tank 23 connected with the first cavity 6 is a NaOH solution tank, and the solution tank 23 connected with the second cavity 7 is H2O2Solution tank, thus NaOH solution and H2O2The solution is pumped into the first cavity 6 and the second cavity 7 of the dual-rotor hypergravity reactor by the anti-corrosion diaphragm pump 22 and flows out from the through hole 51 at the position of the rotor 4.
The waste gas inlet 16 is connected with the waste gas outlet 18 through the fan 15; all be provided with valve 24 between the air inlet at fan 15 and venturi scrubber 13 top, between fan 15 and the exhaust outlet 18 and between defroster 17 and the exhaust outlet 18, through ooff valve 24, can overhaul ship exhaust treatment device.
The working principle is as follows: firstly, opening a valve 24 between the fan 15 and an air inlet at the top of the Venturi scrubber 13 and between the demister 17 and the waste gas outlet 18, and closing the valve 24 between the fan 15 and the waste gas outlet 18; then the tail gas enters the ship tail gas treatment device through the waste gas inlet 16, is pressurized by the fan 15, enters the Venturi scrubber 13 through the gas inlet at the top of the Venturi scrubber 13, and has the temperature of 250-350 ℃, SO2The concentration is 600ppm, the NOx concentration is 1500ppm, and the particulate matter concentration is 120mg/Nm3，O2The concentration is 13%Therefore, water in the water tank 25 is introduced from the liquid inlet of the venturi scrubber 13 through the water pump 19 for washing and cooling so as to prevent particles in the tail gas from blocking the rotor filler and reduce the concentration of particles in the tail gas to 20mg/Nm after washing3The temperature is reduced to about 50 ℃ and part of SO can be absorbed2(ii) a Tail gas enters a first reaction chamber 2 of the double-rotor hypergravity reactor; and the liquid outlet at the bottom of the venturi scrubber 13 discharges the washed waste water and the particulate matters into the hydrocyclone 14, the hydrocyclone 14 discharges the particulate matters into the waste residue tank 20 through the sand settling port, and the waste liquid is sent to the venturi scrubber 13 for recycling through the water pump 19.
In the first reaction chamber 2, as the solution tank 23 connected with the first cavity 6 is a NaOH solution tank, the NaOH solution is pumped into the first cavity 6 of the dual-rotor hypergravity reactor by the anti-corrosion diaphragm pump 22 and then flows out from the through hole 51 at the position of the rotor 4, and SO in the tail gas flows out from the through hole 512Reacting with NaOH solution to generate Na2SO4，SO2The content reaches the discharge limit value of IMO; the desulfurized tail gas enters the second reaction chamber 3 through the U-shaped pipe 8, and the solution tank 23 connected with the second cavity 7 is H2O2Solution tanks, therefore H2O2The solution is pumped into the second cavity 7 of the dual-rotor hypergravity reactor by the anti-corrosion diaphragm pump 22 and then flows out from the through hole 51 at the position of the rotor 4, and NOx and H in the tail gas2O2The solution is reacted to generate HNO3And the NOx content meets the requirement of a specified emission limit value, and is finally demisted by a demister 17 and discharged into the atmosphere through a waste gas outlet 18.
The reaction equation in the dual-rotor hypergravity reactor is as follows,
(1)SO2reaction equation with NaOH:
SO2+1/2O2+2NaOH→Na2SO4+H2O
(2)SO2reaction with water equation:
SO2+H2O＝H2SO3
1/2H2SO3+O2＝H2SO 4(small amount)
(3)NOXAnd H2O2The reaction equation of (1):
2NO2+H2O2→2HNO3
2NO+3H2O2→2HNO 3+2H2O
wherein NOXAnd H2O2The reaction is complicated and is divided into: NO2And H2O2And NO with H2O2Reaction of (2) NO2And H2O2Direct reaction to produce HNO3And NO can be either with H2O2Direct reaction to produce HNO3And can also generate nitrous acid HNO2Nitrous acid HNO2Can be oxidized to produce nitric acid.
For Na generated in the first reaction chamber 22SO4Solution through Na provided at the bottom of the first reaction chamber 22SO4Recovering the solution in a solution recovery storage tank; HNO generated in the second reaction chamber 33Solution passing through HNO provided at the bottom of the second reaction chamber 33The solution is recovered in a solution recovery storage tank, and the collected sodium sulfate and nitric acid can be used as industrial raw materials. When the device needs to be maintained, the valves 24 between the air inlet at the top of the fan 15 and the venturi scrubber 13 and between the demister 17 and the waste gas outlet 18 are closed, and the valve 24 between the fan 15 and the waste gas outlet 18 is opened, so that the tail gas treatment device can be overhauled.

Claims (7)

1. A double-rotor hypergravity reactor is characterized in that: the device comprises a motor (1), a first reaction chamber (2) and a second reaction chamber (3), wherein rotors (4) are arranged in the first reaction chamber (2) and the second reaction chamber (3), a motor shaft (11) of the motor (1) drives the rotors (4) to rotate through a hollow shaft (5), and a through hole (51) is formed in a part, in contact with the rotors (4), of the hollow shaft (5); a first cavity (6) and a second cavity (7) are arranged on the outer sides of the first reaction chamber (2) and the second reaction chamber (3), and through holes (51) are formed in the parts, located in the first cavity (6) and the second cavity (7), of the hollow shaft (5);
a flange coupling (9) is arranged between the hollow shaft (5) and the motor shaft (11); v-shaped sealing devices (10) are arranged at the contact positions of the hollow shaft (5) and the first reaction chamber (2) and the second reaction chamber (3); the hollow shaft (5) is connected with the rotor (4) through a fixing element (12);
the V-shaped sealing device (10) comprises an L-shaped support (105), V-shaped sealing rings (101) and O-shaped rings (104) are arranged on two sides of one side, close to the hollow shaft (5), of the L-shaped support (105), and the V-shaped sealing rings (101) are in contact with the hollow shaft (5); the first reaction chamber (2) and the second reaction chamber (3) are fixedly connected with one sides of the corresponding L-shaped brackets (105) far away from the hollow shaft (5) through fastening screws (103); and a rolling bearing (102) is arranged on the inner side of one side of the L-shaped bracket (105) close to the hollow shaft (5).
2. The dual rotor hypergravity reactor of claim 1, wherein: the hollow shaft (5) is formed by welding two stainless steel seamless hollow steel pipes (52) with equal cross-sectional areas, and a welding point between the stainless steel seamless hollow steel pipes (52) is positioned in the first cavity (6) and close to one end of the second reaction chamber (3); and polytetrafluoroethylene end sockets (53) for sealing are arranged at two ends of the stainless steel seamless hollow steel pipe (52).
3. The dual rotor hypergravity reactor of claim 1, wherein: the first reaction chamber (2) and the second reaction chamber (3) are connected through a U-shaped pipe (8).
4. A ship's tail gas treatment plant provided with a dual rotor hypergravity reactor according to any of claims 1 to 3, comprising a venturi scrubber (13) and a hydrocyclone (14), characterized in that: an air exhaust port and a liquid discharge port at the bottom of the venturi scrubber (13) are respectively connected with a first reaction chamber (2) of the dual-rotor hypergravity reactor and a liquid inlet of the hydrocyclone (14), and an air inlet at the top of the venturi scrubber (13) is connected with a waste gas inlet (16) through a fan (15); the second reaction chamber (3) of the dual-rotor hypergravity reactor is connected with an exhaust gas outlet (18) through a demister (17).
5. The marine exhaust gas treatment device according to claim 4, wherein: a liquid outlet of the hydrocyclone (14) is connected with a liquid inlet of the Venturi scrubber (13) through a water pump (19), and a sand setting port of the hydrocyclone (14) is connected with a waste residue groove (20); the water pump (19) is also connected with the water tank (25).
6. The marine exhaust gas treatment device according to claim 4, wherein: the bottom of the first reaction chamber (2) and the bottom of the second reaction chamber (3) of the dual-rotor hypergravity reactor are both provided with a solution recovery storage tank (21), and the first cavity (6) and the second cavity (7) of the dual-rotor hypergravity reactor are both connected with a solution tank (23) through an anti-corrosion diaphragm pump (22).
7. The marine exhaust gas treatment device according to claim 4, wherein: the waste gas inlet (16) is connected with the waste gas outlet (18) through a fan (15); valves (24) are arranged between the air inlet at the top of the venturi scrubber (13) and the fan (15), between the fan (15) and the waste gas outlet (18) and between the demister (17) and the waste gas outlet (18).
CN201811268117.2A 2018-10-29 2018-10-29 Ship tail gas treatment device and dual-rotor hypergravity reactor thereof Active CN109200819B (en)

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CN111350571A (en) * 2020-02-21 2020-06-30 南通大学 Tail gas purification device of supergravity diesel engine
CN111715072A (en) * 2020-06-23 2020-09-29 南通大学 Hypergravity formula diesel engine tail gas is purifier in coordination
TWI779737B (en) * 2021-07-22 2022-10-01 漢科系統科技股份有限公司 Exhaust gas treatment equipment that can improve filtration efficiency
CN118105799B (en) * 2024-04-30 2024-06-25 汇舸(南通)环保设备有限公司 Ship tail gas and wastewater integrated treatment equipment

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