CN105626199A - Ship power system and ship - Google Patents
Ship power system and ship Download PDFInfo
- Publication number
- CN105626199A CN105626199A CN201410588053.XA CN201410588053A CN105626199A CN 105626199 A CN105626199 A CN 105626199A CN 201410588053 A CN201410588053 A CN 201410588053A CN 105626199 A CN105626199 A CN 105626199A
- Authority
- CN
- China
- Prior art keywords
- power system
- waste gas
- turbine
- ship power
- unit
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 230000002000 scavenging effect Effects 0.000 claims abstract description 17
- 239000003513 alkali Substances 0.000 claims abstract description 11
- 239000002912 waste gas Substances 0.000 claims description 48
- 239000007789 gas Substances 0.000 claims description 30
- 230000003134 recirculating effect Effects 0.000 claims description 15
- 238000005201 scrubbing Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 3
- 238000005204 segregation Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 12
- 235000011121 sodium hydroxide Nutrition 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 5
- 108010066278 cabin-4 Proteins 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Treating Waste Gases (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention provides a ship power system and a corresponding ship. The ship power system comprises a main engine with an exhaust gas header pipe and a scavenging header pipe, an exhaust gas recirculation (EGR) pipeline, a mode change-over valve and an auxiliary water treatment system. The auxiliary water treatment system comprises an oil residue cabin, an exhaust gas washing and cooling unit, a collecting unit, a water treatment unit and an alkali liquor cabin, wherein the exhaust gas washing and cooling unit can wash and cool gas in the EGR pipeline; the water treatment unit is used for purifying water collected by the collecting unit; the alkali liquor cabin can supply caustic soda to the water treatment unit. According to the ship power system, through the EGR pipeline and the auxiliary water treatment system, part of exhaust gas can be washed and cooled and then guided into the engine for combustion again, and the main engine can meet the requirement for three-stage emission; by opening or closing the mode change-over valve, two-stage emission and three-stage emission can be switched.
Description
Technical field
The present invention relates to a kind of ship power system and a kind of boats and ships with this ship power system.
Background technology
Along with marine main engine waste gas emission standard is required increasingly stringent by IMO (International Maritime Organization), increasing country and area are provided with emission control district now, and nitrogen oxides or/and sulfide are had certain requirement by the region of these delimitations. For the boats and ships built before on January 1st, 2016, IMO requires that nitrogen oxides needs meeting tier 2 standard (TIERII), and the boats and ships for building after on January 1st, 2016, nitrogen oxides need to meet grade III Standard (TIERIII), first electromotor needs to make revolutionary amendment, make these amendments, need expensive fund input, and these costs are often finally all checked by shipowner, so a lot of shipowners select to evade the requirement of three grades of discharges, before getting the jump on January 1st, 2016, order construction.
So before 1 day January in 2016 build boats and ships, generally can only meeting tier 2 discharge standard. But, environmental conservation is the certainty of history, and the up-to-date discharged nitrous oxides standard of promotion and application is trend of the times.
In information above-mentioned disclosed in described background section only for strengthening the understanding of the background to the present invention, therefore it can include not constituting the information to prior art known to persons of ordinary skill in the art.
Summary of the invention
It is an object of the present invention to overcome above-mentioned the deficiencies in the prior art, it is provided that one can be discharged by meeting tier 2, change pattern can be passed through again and meet the ship power systems of three grades of discharges.
Another object of the present invention is to provide the boats and ships with this ship power system.
Additional aspect and the advantage of the present invention will be set forth in part in the description, and partly will be apparent from from describe, or can the acquistion by the practice of the present invention.
According to an aspect of the present invention, a kind of ship power system, including the main frame with waste gas header and scavenging air trunk, also include the EGR exhaust recirculating line connecting waste gas header and scavenging air trunk, EGR exhaust recirculating line is in series with the mode switching valve can opened or close, this ship power system also includes auxiliary water treatment system, and this auxiliary water treatment system includes:
Dregs of fat cabin;
Waste gas wash cooling unit, the gas in EGR exhaust recirculating line can be washed and lower the temperature by it;
Collector unit, it is connected with waste gas wash cooling unit, it is possible to be collected by the water in waste gas wash cooling unit;
Unit for treating water, it is connected with collector unit and waste gas wash cooling unit, it is possible to the water collected by collector unit is purified, and the water after purifying is sent to waste gas wash cooling unit, and the dregs of fat purified from water are sent to dregs of fat cabin;
Alkali liquor cabin, it can supply alkali liquor to unit for treating water.
According to an embodiment of the present invention, the blow-off pipe connected with dregs of fat cabin it is provided with at collector unit.
According to an embodiment of the present invention, the prewashing column on EGR exhaust recirculating line, cooler for recycled exhaust gas and the main scrubbing tower that described waste gas wash cooling unit includes being sequentially connected in series between mode switching valve and scavenging air trunk.
According to an embodiment of the present invention, also include a shutoff turbine with exhaust gas turbine and compressor turbine, it is provided with the first Shuttoff Valve between air inlet and the waste gas header of the exhaust gas turbine of described shutoff turbine, between gas outlet and the cooler for recycled exhaust gas of its compressor turbine, is provided with the second Shuttoff Valve.
According to an embodiment of the present invention, described dregs of fat cabin is arranged on the bottom of boats and ships.
According to an embodiment of the present invention, the segregation apparatus for impurity screening it is provided with in unit for treating water.
According to an embodiment of the present invention, also include a shutoff turbine, described shutoff turbine has exhaust gas turbine and compressor turbine, is connected to the first valve 15 between air inlet and the waste gas header of described exhaust gas turbine, is connected to the second valve between gas outlet and the cooler for recycled exhaust gas of described compressor turbine.
According to another aspect of the present invention, a kind of boats and ships, above-mentioned ship power system.
According to an embodiment of the present invention, these boats and ships are container ship.
As shown from the above technical solution, advantages of the present invention and having the active effect that
Ship power system of the present invention, again import to electromotor after the tail gas of part can be carried out cooling burn by arranging EGR exhaust recirculating line and auxiliary water treatment system, it is thus able to make main frame meet three grades of discharges, by switching mode switching valve, it is possible to conversion between two grades of discharges and three grades of discharges.
Accompanying drawing explanation
Its example embodiment being described in detail by referring to accompanying drawing, the above-mentioned and further feature of the present invention and advantage will be apparent from.
Fig. 1 is the schematic diagram of embodiment of the present invention ship power system;
Fig. 2 is the schematic diagram assisting water treatment system in the embodiment of the present invention.
In figure: 1, main frame; 11, waste gas header; 12, scavenging air trunk; 13, main turbine; 14, turbine is turned off; 15, the first valve; 16, the second valve; 2, EGR exhaust recirculating line; 3, mode switching valve; 4, dregs of fat cabin; 5, waste gas wash cooling unit; 51, prewashing column; 52, cooler for recycled exhaust gas; 53, main scrubbing tower; 6, collector unit; 7, unit for treating water; 8, alkali liquor cabin; 9, blow-off pipe.
Detailed description of the invention
It is described more fully with example embodiment referring now to accompanying drawing. But, example embodiment can be implemented in a variety of forms, and is not understood as limited to embodiment set forth herein; On the contrary, it is provided that these embodiments make the present invention will fully and completely, and the design of example embodiment is conveyed to those skilled in the art all sidedly. Accompanying drawing labelling identical in figure represents same or similar structure, thus will omit their detailed description.
As shown in Figures 1 and 2, the invention discloses a kind of ship power system, it includes the main frame 1 with waste gas header 11 and scavenging air trunk 12, also includes the EGR exhaust recirculating line 2 connecting waste gas header 11 and scavenging air trunk 12. EGR (ExhaustGasRecycling) exhaust gas recirculation circuit 2 is for being reintroduced back to the waste gas that main frame 1 produces in main frame. EGR exhaust recirculating line 2 is in series with the mode switching valve 3 can opened or close. This ship power system also includes auxiliary water treatment system. The waste gas produced in main frame 1 can enter in waste gas header 11, is then passed through main turbine 13 and is discharged. Main turbine 13 is by compresses fresh air to scavenging air trunk 12, and these fresh airs can be inhaled in main frame 1.
This ship power system is by opening or closing mode switching valve 3, it is possible to opens or closes the EGR function of main frame 1, and when opening EGR function, portion is reintroduced in scavenging air trunk 12 from waste gas header 11. When the EGR function of main frame 1 is opened, this ship power system disclosure satisfy that TIERIII tri-grades discharge, after closing EGR function, it is possible to meet TIERII bis-grades discharge.
Auxiliary water treatment system includes dregs of fat cabin 4, collector unit 6, waste gas wash cooling unit 5, unit for treating water 7 and alkali liquor cabin 8.
Waste gas in EGR exhaust recirculating line 2 can be washed and lower the temperature by waste gas wash cooling unit 5. The prewashing column 51 on EGR exhaust recirculating line 2, cooler for recycled exhaust gas 52 and the main scrubbing tower 53 that this waste gas wash cooling unit 5 includes being sequentially connected in series between mode switching valve 3 and scavenging air trunk 12. Waste gas in EGR exhaust recirculating line 2 first passes through prewashing column 51, sprays part flue dust therein by fresh water and sulfide is disposed of, and then waste gas is then through cooler for recycled exhaust gas 52 and main scrubbing tower 53. When waste gas gas is washed, adding alkali liquor and can neutralize the sulfide in waste gas and nitrogen oxides well in washings, alkali liquor can adopt Caustic soda or other basic species.
From waste gas wash cooling unit 5 through waste gas enter into scavenging air trunk 12 after, can be re-introduced in main frame 1 to burn, owing to the oxygen content in waste gas significantly reduces, therefore after mixing, the oxygen content in scavenging air trunk 12 also can reduce, the nitrogen oxides produced when main frame 1 works will reduce, thus main frame 1 can reach tri-grades of emission requests of TIERIII.
Containing flue dust precipitate and sulfide in waste water out from waste gas wash cooling unit 5, having certain acidity, these waste water are first collected unit 6 and collect, and are then entered into unit for treating water 7 by collector unit 6 again. Unit for treating water 7 is connected with collector unit 6 and waste gas wash cooling unit 5, and the water collected by collector unit 6 is purified by it, and the water after purifying is sent to waste gas wash cooling unit 5, and the dregs of fat purified from water are sent to dregs of fat cabin 4. At unit for treating water 7, the impurity that segregation apparatus is crossed in drainage is set, and, it is also possible in unit for treating water 7, add Caustic soda, neutralize the sulfide in water. The Caustic soda added in unit for treating water 7 is supplied by alkali liquor cabin 8.
In order to improve the safety of system, being provided with the blow-off pipe 9 both connected so that between collector unit 6 and dregs of fat cabin 4 when unit for treating water 7 breaks down time, it is internal that the waste water in collector unit 6 can be directly discharged to dregs of fat cabin 4. Dregs of fat cabin 4 generally can be positioned at the bottom of boats and ships, reaches the purpose that space makes full use of.
This ship power system is additionally provided with a shutoff turbine 14. When main frame 1 does not need to open EGR function, a part of waste gas drives compressor by turning off turbine, and fresh air can pass through the part pipeline water inlet scavenging air trunk of waste gas recirculation, and the waste gas through turning off turbine 14 will enter air by discharge duct. Turn off turbine 14 and there is exhaust gas turbine and compressor turbine, be provided with the first valve 15 between air inlet and the waste gas header 11 of its exhaust gas turbine, between gas outlet and the cooler for recycled exhaust gas 52 of compressor turbine, be provided with the second valve 16. First valve 15 and the second valve 16 fully open after, turn off turbine 14 and begin to work, this time, mode switching valve 3 was automatically switched off, and fresh air enters scavenging air trunk 12 by the part pipeline of waste gas recirculation.
This ship power system can pass through the state of switch mode switching valve 3, what make main frame 1 is emitted on conversion between three grades of discharges and two grades of discharges, the requirement of environmental protection can be reached, meet relevant legal provisions, purpose energy-conservation, that cut operating costs can be reached again.
Present embodiment also discloses a kind of boats and ships, and these boats and ships have the ship power system of present embodiment. These boats and ships are container ship, it is also possible to be other kinds of boats and ships.
More than it is particularly shown and described the illustrative embodiments of the present invention. It should be understood that the invention is not restricted to disclosed embodiment, on the contrary, it is intended to various amendments in containing the spirit and scope being included in claims and equivalent arrangements.
Claims (9)
1. a ship power system, including the main frame with waste gas header and scavenging air trunk, it is characterized in that: also include connecting the EGR exhaust recirculating line of waste gas header and scavenging air trunk, EGR exhaust recirculating line is in series with the mode switching valve can opened or close, this ship power system also includes auxiliary water treatment system, and this auxiliary water treatment system includes:
Dregs of fat cabin;
Waste gas wash cooling unit, the gas in EGR exhaust recirculating line can be washed and lower the temperature by it;
Collector unit, it is connected with waste gas wash cooling unit, it is possible to be collected by the water in waste gas wash cooling unit;
Unit for treating water, it is connected with collector unit and waste gas wash cooling unit, it is possible to the water collected by collector unit is purified, and the water after purifying is sent to waste gas wash cooling unit, and the dregs of fat purified from water are sent to dregs of fat cabin;
Alkali liquor cabin, it can supply alkali liquor to unit for treating water.
2. ship power system according to claim 1, it is characterised in that: collector unit is provided with the blow-off pipe connected with dregs of fat cabin.
3. ship power system according to claim 1, it is characterised in that: the prewashing column on EGR exhaust recirculating line, cooler for recycled exhaust gas and the main scrubbing tower that described waste gas wash cooling unit includes being sequentially connected in series between mode switching valve and scavenging air trunk.
4. ship power system according to claim 3, it is characterized in that: also include a shutoff turbine with exhaust gas turbine and compressor turbine, it is provided with the first Shuttoff Valve between air inlet and the waste gas header of the exhaust gas turbine of described shutoff turbine, between gas outlet and the cooler for recycled exhaust gas of its compressor turbine, is provided with the second Shuttoff Valve.
5. ship power system according to claim 1, it is characterised in that: described dregs of fat cabin is arranged on the bottom of boats and ships.
6. ship power system according to claim 1, it is characterised in that: it is provided with the segregation apparatus for impurity screening in described unit for treating water.
7. ship power system according to claim 1, it is characterized in that: also include a shutoff turbine, described shutoff turbine has exhaust gas turbine and compressor turbine, it is connected to the first valve 15 between air inlet and the waste gas header of described exhaust gas turbine, between gas outlet and the cooler for recycled exhaust gas of described compressor turbine, is connected to the second valve.
8. boats and ships, it is characterised in that include the ship power system as according to any one of claim 1 to 7.
9. boats and ships according to claim 8, it is characterised in that: these boats and ships are container ship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588053.XA CN105626199B (en) | 2014-10-15 | 2014-10-28 | Ship power system and ship |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546238 | 2014-10-15 | ||
| CN2014105462384 | 2014-10-15 | ||
| CN201410588053.XA CN105626199B (en) | 2014-10-15 | 2014-10-28 | Ship power system and ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105626199A true CN105626199A (en) | 2016-06-01 |
| CN105626199B CN105626199B (en) | 2019-07-09 |
Family
ID=56041481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410588053.XA Expired - Fee Related CN105626199B (en) | 2014-10-15 | 2014-10-28 | Ship power system and ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626199B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533424A (en) * | 2017-12-27 | 2018-09-14 | 沪东重机有限公司 | The changeable gas recirculation system of the pattern of two strokes low-speed diesel engine peculiar to vessel |
| CN109372659A (en) * | 2018-10-26 | 2019-02-22 | 江苏中远环保科技有限公司 | A kind of energy-saving environmental protection device in control loop cooler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10306719A (en) * | 1997-05-06 | 1998-11-17 | Mitsubishi Heavy Ind Ltd | Emission control method for reciprocating internal combustion engine provided with egr mechanism, and device for the same |
| DE10347589A1 (en) * | 2003-10-14 | 2005-06-09 | Volkswagen Ag | Vehicle engine with two exhaust gas turbo chargers, has first turbo charger connected to bypass pipe containing bypass valve |
| US20060174621A1 (en) * | 2005-02-04 | 2006-08-10 | Kai Chen | Two-turbocharger engine and method |
| CN103052790A (en) * | 2010-08-24 | 2013-04-17 | 三菱重工业株式会社 | Engine exhaust-gas purification device |
| CN103388514A (en) * | 2012-05-10 | 2013-11-13 | 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司 | Internal combustion engine |
| EP2738364A1 (en) * | 2012-11-29 | 2014-06-04 | Alfa Laval Corporate AB | Exhaust gas scrubber, system for treatment of scrubber water and use of an exhaust gas scrubber |
-
2014
- 2014-10-28 CN CN201410588053.XA patent/CN105626199B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10306719A (en) * | 1997-05-06 | 1998-11-17 | Mitsubishi Heavy Ind Ltd | Emission control method for reciprocating internal combustion engine provided with egr mechanism, and device for the same |
| DE10347589A1 (en) * | 2003-10-14 | 2005-06-09 | Volkswagen Ag | Vehicle engine with two exhaust gas turbo chargers, has first turbo charger connected to bypass pipe containing bypass valve |
| US20060174621A1 (en) * | 2005-02-04 | 2006-08-10 | Kai Chen | Two-turbocharger engine and method |
| CN103052790A (en) * | 2010-08-24 | 2013-04-17 | 三菱重工业株式会社 | Engine exhaust-gas purification device |
| CN103388514A (en) * | 2012-05-10 | 2013-11-13 | 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司 | Internal combustion engine |
| EP2738364A1 (en) * | 2012-11-29 | 2014-06-04 | Alfa Laval Corporate AB | Exhaust gas scrubber, system for treatment of scrubber water and use of an exhaust gas scrubber |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533424A (en) * | 2017-12-27 | 2018-09-14 | 沪东重机有限公司 | The changeable gas recirculation system of the pattern of two strokes low-speed diesel engine peculiar to vessel |
| CN109372659A (en) * | 2018-10-26 | 2019-02-22 | 江苏中远环保科技有限公司 | A kind of energy-saving environmental protection device in control loop cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105626199B (en) | 2019-07-09 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 |