CN216630283U - Ship tail gas desulfurization device based on membrane absorption technology - Google Patents
Ship tail gas desulfurization device based on membrane absorption technology Download PDFInfo
- Publication number
- CN216630283U CN216630283U CN202123207891.2U CN202123207891U CN216630283U CN 216630283 U CN216630283 U CN 216630283U CN 202123207891 U CN202123207891 U CN 202123207891U CN 216630283 U CN216630283 U CN 216630283U
- Authority
- CN
- China
- Prior art keywords
- seawater
- pipeline
- membrane
- membrane contact
- tail gas
- 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.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to a ship tail gas desulfurization device based on a membrane absorption technology, belonging to the technical field of ship tail gas desulfurization treatment; comprises a booster fan, a membrane contact absorber, a seawater storage tank, a seawater circulating pump and a precision filter; the seawater circulating pump pumps the seawater from the seawater storage tank, the seawater passes through the precision filter, and is pumped into the tube pass inlet of the membrane contact absorber, after the seawater is in contact reaction with the membrane contact absorber, the seawater is communicated with the tube pass outlet of the membrane contact absorberThe water flows back to the seawater storage tank through a pipeline and is recycled; the membrane contact absorber is used for absorbing SO in ship tail gas2A component, wherein the membrane contact absorber is internally filled with a hydrophobic hollow fiber microporous membrane. The device has the advantages of low investment cost, small equipment volume, low material requirement, low energy consumption and strong economy.
Description
Technical Field
The utility model relates to a ship tail gas desulfurization device based on a membrane absorption technology, and belongs to the technical field of ship tail gas desulfurization treatment.
Background
At present, over 95 percent of commercial ship power sources all over the world are diesel engines, wherein large-scale marine diesel engines generally use high-sulfur diesel, and with the increase of tonnage of ships, ship waste gas becomes SO in ports and coastal areas2Is the main source of (1).
The traditional ship tail gas desulfurization device is generally a washing tower, the floor area and the volume of the washing tower equipment are large, the use in the limited space of a ship is easily limited, and meanwhile, the investment cost of the traditional washing tower equipment is high, the equipment volume is large, the material requirement is high, and foaming, entrainment and flooding phenomena can occur. In addition, when a ship approaches a shore line, the operation speed is low, the exhaust emission is correspondingly reduced, but the washing tower is limited by the gas-liquid ratio, the operation elasticity is low, and therefore, the energy consumption is high, and the economy is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a ship tail gas desulfurization device based on a membrane absorption technology, which can effectively solve the problems, wherein the membrane absorption is a novel process coupling the traditional absorption and membrane separation technologies, is different from the direct contact of waste gas and an absorbent in a washing tower, and introduces seawater subjected to ultrafiltration pretreatment as a desulfurization absorbent into the shell pass of a membrane contactor in the membrane absorption process; when the shell pass of the membrane contactor is filled with seawater and flows out, introducing sulfur-containing tail gas into the tube pass of the membrane contactor, and operating in a countercurrent mode; providing a contact reaction interface by using a hollow fiber microporous membrane with high specific surface area, and providing SO in waste gas2Can diffuse rapidly through the membrane pores and then be absorbed and removed by the seawater absorbent.
The technical scheme adopted by the utility model is as follows:
a ship tail gas desulfurization device based on a membrane absorption technology comprises: a booster fan, a membrane contact absorber, a seawater storage tank, a seawater circulating pump and a precision filter; wherein, the number of the membrane contact absorbers is 8, the membrane contact absorbers are arranged in two groups, and each group comprises 4 membrane contact absorbers; the upper port of each membrane contact absorber is connected with a shell pass inlet pipeline; the lower port of each membrane contact absorber is connected with a shell pass outlet pipeline, and a tube pass pipeline is arranged between the two groups of membrane contact absorbers; each membrane contact absorber is connected with a tube pass pipeline; the outlet of the booster fan is connected with the shell pass inlet pipeline, and the tail gas to be treated is pressed into the shell pass inlet pipeline after passing through the booster fan; the tail gas flows into the membrane contact absorber through a shell pass inlet pipeline; one end of a tube pass inlet pipeline of the membrane contact absorber is connected with an outlet of the precision filter, the other end of the tube pass inlet pipeline is connected with a tube pass pipeline, one end of the tube pass outlet pipeline of the membrane contact absorber is connected with the tube pass pipeline, and the other end of the tube pass outlet pipeline is connected into a seawater storage tank;
the inlet and the outlet are respectively arranged at two sides of the cylinder body of the precision filter, and the inlet of the precision filter is connected with the outlet of the seawater circulating pump through a pipeline; the outlet of the precision filter is connected with a tube pass inlet pipeline; the side wall of the lower part of the seawater storage tank is provided with a seawater outlet which is connected with a seawater circulating pump through a pipeline.
The membrane contact absorber is used for absorbing SO in ship tail gas2A component, wherein the membrane contact absorber is internally filled with a hydrophobic hollow fiber microporous membrane. The shell pass of the membrane contact absorber is a ship tail gas flowing channel, the tube pass of the membrane contact absorber is a seawater flowing channel, and SO in the tail gas2The outer surface of the hydrophobic hollow fiber membrane in the membrane contact absorber reacts with seawater through membrane pores for absorption, SO that SO in the tail gas is removed2；
The seawater circulating pump pumps seawater from the seawater storage tank, passes through the precision filter, pumps the seawater into the tube pass inlet of the membrane contact absorber, and returns the seawater to the seawater storage tank through a pipeline from the tube pass outlet of the membrane contact absorber after the seawater is subjected to contact reaction by the membrane contact absorber, so that the seawater can be recycled;
furthermore, a valve and a pressure gauge are arranged on a connecting pipeline between the seawater circulating pump and the precision filter.
Further, a gas flowmeter and a pressure gauge are arranged on the outlet pipeline of the booster fan.
Further, the precision filter is used for removing mechanical impurities in seawater.
Drawings
FIG. 1 is a front view of a marine tail gas desulfurization apparatus based on membrane absorption technology according to the present invention;
FIG. 2 is a top view of the apparatus for desulfurizing ship exhaust gas based on membrane absorption technology.
Wherein: 1. the system comprises a booster fan, 2. a membrane contact absorber, 3. a seawater storage tank, 4. a seawater circulating pump, 5. a precision filter, 6. a shell pass inlet pipeline, 7. a shell pass outlet pipeline, 8. a tube pass pipeline, 9. a tube pass inlet pipeline and 10. a tube pass outlet pipeline.
Detailed Description
450 Nm/h ship tail gas desulfurization device is shown in the attached figure 1 and comprises: booster fan 1, membrane contact absorber 2, sea water storage tank 3, sea water circulating pump 4, precision filter 5. As shown in fig. 2, the number of the membrane contact absorbers 2 is 8, and the membrane contact absorbers are arranged in two groups of 4; as shown in fig. 1, the upper port of each membrane contact absorber 2 is connected to a shell-side inlet pipe 6; the lower port of each membrane contact absorber 2 is connected with a shell side outlet pipeline 7. As shown in fig. 2, a tube-side pipe 8 is provided in the middle of the two sets of membrane contact absorbers; each membrane contact absorber 2 is in turn connected to a tube-side conduit 8.
After tail gas to be treated passes through a booster fan 1 (used for overcoming tail gas resistance of the device), pressing the tail gas into a shell pass inlet pipeline 6; the tail gas flows into the membrane contact absorber 2 through a shell side inlet conduit 6.
Membrane contact absorber 2 for absorbing SO in marine exhaust gas2Component (A), a hydrophobic hollow fiber microporous membrane is filled in the membrane contact absorber 2. The shell pass of the membrane contact absorber 2 is a ship tail gas flowing channel, the tube pass of the membrane contact absorber 2 is a seawater flowing channel, and SO in the tail gas2The outer surface of the hydrophobic hollow fiber membrane in the membrane contact absorber 2 reacts with seawater through membrane pores for absorption, thereby removing SO in the tail gas2。
As shown in fig. 2, one end of a tube-side inlet pipeline 9 of the membrane contact absorber 2 is connected with an outlet of the precision filter 5, the other end of the tube-side inlet pipeline is connected with a tube-side pipeline 8, one end of a tube-side outlet pipeline 10 of the membrane contact absorber 2 is connected with the tube-side pipeline 8, and the other end of the tube-side outlet pipeline 10 is connected into the seawater storage tank 3.
The precision filter 5 is used for removing mechanical impurities in seawater, an inlet and an outlet are respectively arranged on two sides of a cylinder body of the precision filter 5, and an inlet of the precision filter 5 is connected with an outlet of the seawater circulating pump 4 through a pipeline; the outlet of the precision filter 5 is connected with a tube side inlet pipeline 9.
The side wall of the lower part of the seawater storage tank 3 is provided with a seawater outlet which is connected with a seawater circulating pump 4 through a pipeline, the seawater circulating pump 4 pumps seawater from the seawater storage tank 3, the seawater passes through a precision filter 5, the seawater is pumped into a tube pass inlet pipeline 9 of the membrane contact absorber 2, the seawater flows into the membrane contact absorber 2 through a tube pass pipeline 8, and simultaneously reacts with tail gas entering through a shell pass inlet pipeline 6 in the membrane contact absorber 2, and SO in the tail gas2The outer surface of the hydrophobic hollow fiber membrane in the membrane contact absorber 2 reacts with seawater through membrane pores for absorption, thereby removing SO in the tail gas2(ii) a While other gases produced in the reaction are discharged through a shell-side outlet conduit 7. The seawater tail gas desulfurization is to remove SO in tail gas by taking natural seawater as an absorbent2The method (1); in one aspect, SO in the tail gas2Absorbed by seawater and reacted with oxygen to generate sulfate ions and hydrogen ions, and the pH value of the seawater is reduced due to the increase of the concentration of the hydrogen ions; on the other hand, the abundant existence of carbonate ions in the seawater reacts with hydrogen ions to generate carbon dioxide and water, thereby counteracting the absorption of SO2The pH value is recovered to be normal by the acidification effect.
The seawater is returned to the seawater storage tank 3 from the tube-side outlet pipe 10 of the membrane contact absorber 2, and is recycled.
The main equipment parameters of the utility model are as follows:
1. booster fan
Outputting air volume: 400 and 600 Nm/h, power of the explosion-proof motor: 5.5KW, output wind pressure: 40 KPa.
2. Membrane contact absorber
Quantity: 8 cylindrical UPVC cylinders with the outer diameter of 200mm and the length of 1200mm are packaged with polytetrafluoroethylene hollow fiber microporous membrane bundles, and the filling membrane area is 65m2。
3. Seawater storage tank
Cylindrical barrel, material Polypropylene (PE), volume: 4m through planting.
4. Seawater circulating pump
Flow rate: carrying out 20m year by year; lift: 10 m; the material is as follows: PPR.
5. Precision filter
Cylindrical barrel, material UPVC, filter fineness 15 microns.
The device is tested on a test bed of a certain ship engine, and the result shows that: when the device is provided with an inlet SO2When the concentration is in the range of 200-900ppm, the SO at the outlet of the device2The concentration is not detected, and the desulfurization efficiency of the device is 100 percent.
Claims (4)
1. The utility model provides a boats and ships tail gas desulphurization unit based on membrane absorption technique which characterized in that: comprises a booster fan (1), a membrane contact absorber (2), a seawater storage tank (3), a seawater circulating pump (4) and a precision filter (5); wherein the number of the membrane contact absorbers (2) is 8, the membrane contact absorbers are arranged in two groups, and each group comprises 4 membrane contact absorbers; the upper port of each membrane contact absorber (2) is connected with a shell pass inlet pipeline (6); the lower port of each membrane contact absorber (2) is connected with a shell pass outlet pipeline (7), and a tube pass pipeline (8) is arranged between the two groups of membrane contact absorbers; each membrane contact absorber (2) is connected with a tube pass pipeline (8); the outlet of the booster fan (1) is connected with the shell pass inlet pipeline (6), and the tail gas to be treated is pressed into the shell pass inlet pipeline (6) after passing through the booster fan (1); the tail gas flows into the membrane contact absorber (2) through a shell side inlet pipeline (6); one end of a tube pass inlet pipeline (9) of the membrane contact absorber (2) is connected with an outlet of the precision filter (5), the other end of the tube pass inlet pipeline is connected with a tube pass pipeline (8), one end of a tube pass outlet pipeline (10) of the membrane contact absorber (2) is connected with the tube pass pipeline (8), and the other end of the tube pass outlet pipeline (10) is connected into the seawater storage tank (3);
the inlet and the outlet are respectively arranged at two sides of the cylinder body of the precision filter (5), and the inlet of the precision filter (5) is connected with the outlet of the seawater circulating pump (4) through a pipeline; the outlet of the precision filter (5) is connected with a tube pass inlet pipeline (9); the side wall of the lower part of the seawater storage tank (3) is provided with a seawater outlet which is connected with a seawater circulating pump (4) through a pipeline.
2. The marine tail gas desulfurization device based on the membrane absorption technology according to claim 1, characterized in that: and a valve and a pressure gauge are arranged on a connecting pipeline between the seawater circulating pump (4) and the precision filter (5).
3. The marine tail gas desulfurization device based on the membrane absorption technology according to claim 1, characterized in that: and a gas flowmeter and a pressure gauge are arranged on an outlet pipeline of the booster fan (1).
4. The marine tail gas desulfurization device based on the membrane absorption technology according to claim 1, characterized in that: the precision filter (5) is used for removing mechanical impurities in seawater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123207891.2U CN216630283U (en) | 2021-12-20 | 2021-12-20 | Ship tail gas desulfurization device based on membrane absorption technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123207891.2U CN216630283U (en) | 2021-12-20 | 2021-12-20 | Ship tail gas desulfurization device based on membrane absorption technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216630283U true CN216630283U (en) | 2022-05-31 |
Family
ID=81741541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123207891.2U Active CN216630283U (en) | 2021-12-20 | 2021-12-20 | Ship tail gas desulfurization device based on membrane absorption technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216630283U (en) |
-
2021
- 2021-12-20 CN CN202123207891.2U patent/CN216630283U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105148728A (en) | Tail-gas desulfurization system and technique for seawater and fresh water dual-purpose ship | |
| CN106474904B (en) | A kind of CO of hydrate joint chemical absorption method2Gas fractionation unit and method | |
| CN101091873B (en) | Technical method by using seawater to remove sulfur dioxide in smoke through membrane absorption method | |
| CN107349759A (en) | A kind of ship tail gas combined desulfurization carbonization treatment device | |
| CN103031172B (en) | Layered biological-chemical combined biogas desulfurizing device | |
| CN216630283U (en) | Ship tail gas desulfurization device based on membrane absorption technology | |
| CN208839323U (en) | Seawater injecting, bubbling, desulfurizing device | |
| CN102557194B (en) | Film method aeration industrial flue gas desulfurization seawater recovery process | |
| CN101249375A (en) | Wet-type oxidation sweetening method and apparatus | |
| CN109852985B (en) | Water electrolysis hydrogen production device with gas pre-purification function | |
| CN209873130U (en) | Water electrolysis hydrogen production device with gas pre-purification function | |
| CN105749720A (en) | Denitrification system and method | |
| CN207580141U (en) | A kind of pouring-in ballast water treatment structure of gravity | |
| CN206129365U (en) | Environment -friendly boats and ships wet -type exhaust silencer | |
| CN207418449U (en) | Novel desulfurization seawater aeration device | |
| CN110575743B (en) | Desulphurization unit for boats and ships | |
| CN210683329U (en) | Biological nanometer aeration system | |
| CN210874705U (en) | Membrane aeration-absorption coupled membrane method seawater flue gas desulfurization device | |
| CN209428477U (en) | A kind of gas field individual well liquid desulfurizer based on non-renewable solution | |
| CN113694696A (en) | Ship tail gas desulfurization device and desulfurization method | |
| CN203021521U (en) | Layered biological-chemical combined biogas desulfurization device | |
| CN106345232A (en) | Method and device for removing siloxane in biomass gas through two-stage mode | |
| CN202415299U (en) | Efficient alkalinity-reducing water treatment apparatus | |
| CN110538545A (en) | membrane aeration-absorption coupling type membrane method seawater flue gas desulfurization method and device | |
| CN206535385U (en) | The device of siloxanes in two-part removing biogas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |