CN203906053U - SCR urea tank for exhaust aftertreatment for marine diesel engine - Google Patents
SCR urea tank for exhaust aftertreatment for marine diesel engine Download PDFInfo
- Publication number
- CN203906053U CN203906053U CN201420231257.3U CN201420231257U CN203906053U CN 203906053 U CN203906053 U CN 203906053U CN 201420231257 U CN201420231257 U CN 201420231257U CN 203906053 U CN203906053 U CN 203906053U
- Authority
- CN
- China
- Prior art keywords
- tank body
- tank
- diesel engine
- marine diesel
- interface
- 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.)
- Expired - Lifetime
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000004202 carbamide Substances 0.000 title claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000009423 ventilation Methods 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 17
- 239000010865 sewage Substances 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- -1 Tier I Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides an SCR urea tank for exhaust aftertreatment for a marine diesel engine, which achieves simple tank body structure, convenient production and machining, and scientific and reasonable running while meeting the running working conditions of ships. The SCR urea tank comprises a tank body, wherein a filling port and a ventilation port are formed in the top of the tank body, and a solution outlet and a blow-down port are formed in the bottom; an overflow port is formed in the sidewall of the tank body; a liquid level meter connector, a thermometer connector, a liquid level controller connector, a temperature sensor connector and a densimeter connector are further formed in the tank body. The SCR urea tank for exhaust aftertreatment for the marine diesel engine provided by the utility model meets the related stipulations of China classification society for SCR equipment for marine diesel engines, as well as is simple in structure, and scientific and reasonable in working mode.
Description
Technical field
The utility model relates to internal-combustion engines exhaust gas purifying system, relates in particular to a kind of SCR urea tank for marine diesel engine exhaust aftertreatment.
Background technique
The pollution of atmosphere causing for improving boats and ships, International Maritime Organization (IMO) has been passed through MARPOL73/78 pact supplemental provisions VI in 1997---and prevent that boats and ships from causing pollution of atmosphere rule, this rule is formally effective on May 19th, 2005.In October, 2008, in MEPC58 meeting, passed again the amendment of supplemental provisions VI through discussion, this amendment has proposed stricter requirement to the discharge of boats and ships harmful gas, and the clear and definite three phases of emission limits of nitrogen oxides, i.e. Tier I, Tier II and Tier III.Requirement boats and ships after on January 1st, 2016 need to be installed and meet the diesel engine that Tier III requires, and just can sail emission control district into.
According to current technical merit, only rely on diesel engine self emission-reduction technology to be difficult to meet the standard of Tier III, this just means that diesel engine must realize this goal by post-processing technology.In nitrogen oxide post-processing technology, " " (Selective Catalytic Reduction, abbreviation SCR) is acknowledged as the most ripe, effective measures to selective catalytic reduction.Domestic substantially at the early-stage for marine diesel engine SCR technology, substantially in theory study, there is certain gap with experimental study stage technique level with comparing of developed country at present.The phase of coming into force apart from Tier III is more and more nearer, and if do not accelerated the research and development of marine diesel engine SCR technology, China loses whole International Shipping Market possibly.
Urea tank is the container with stored urea solution in SCR system of diesel engine, is one of critical component of whole system.
Above-mentioned known, be necessary urea tank scientifically to design, to ensure the normal operation of whole SCR system of diesel engine.
Model utility content
The purpose of this utility model is to provide a kind of SCR urea tank for marine diesel engine exhaust aftertreatment, is meeting under vessel motion operating mode, accomplishes that tank structure is simple, makes easy to processly, moves scientific and reasonable.
For achieving the above object, the utility model is by the following technical solutions:
A SCR urea tank for marine diesel engine exhaust aftertreatment, comprises tank body, and the top of tank body is provided with filler and ventilation mouth, and bottom is provided with taphole and sewage draining exit; The sidewall of tank body is provided with flow-off; On tank body, be also provided with interface of the level gauge, thermometer boss, fluid level controller interface, temperature sensor interface, densitometer interface.
Described tank body is welded by 316 corrosion resistant plates, and each face steel plate inwall is all welded with stiffening rib; Described interface of the level gauge, thermometer boss, fluid level controller interface, temperature sensor interface, densitometer interface are 316 stainless steels, are welded on tank body.
Described filler is taken over and is formed by filler flange and filler, and filler is taken over the straight-through bottom from tank body top, and weld mutually with the top board of tank body its top, below is welded with guide plate, and guide plate and tank body welding are fixed, and urea liquid are played to the effect of water conservancy diversion.
Described ventilation mouth is positioned at the top of tank body, by ventilation mouth flange and ventilation mouth, is taken over and is formed, and ventilation mouth is taken over and tank body welding, and ventilation mouth flange is for being connected with outer tube flange.
Described flow-off is positioned at place, inclined to one side top, tank body side, comprises seat board and overflow adapter, and below is taken in described overflow seal cup, for collecting the urea liquid overflowing.
Described taphole, sewage draining exit are positioned at described tank base, are respectively used to conveying and the emptying of urea liquid.
On described tank body, be also provided with steam inlet and steam (vapor) outlet, between steam inlet and steam (vapor) outlet, by the steam comb being arranged in tank body, connect, described steam inlet, steam (vapor) outlet are positioned at the below of tank body.
Described interface of the level gauge, thermometer boss, fluid level controller interface, temperature sensor interface, densitometer interface are positioned at the front of tank body, for connecting corresponding instrument, instrument, to show characteristic, the reserves of urea liquid.
The side of described tank body is provided with manhole peculiar to vessel, staff's access way when making, overhauling.
The beneficial effects of the utility model are:
The utility model is to meet CCS about the relevant regulations of marine diesel engine SCR equipment in order to realize the SCR urea tank of marine diesel engine exhaust aftertreatment, and simple in structure, working method is scientific and reasonable; Adopt 316 stainless steels of high-quality, guarantee the long service life of whole urea tank; Instrument cooperating after each interface and installation, guarantees reliable, the safe operation of whole marine diesel engine SCR system.Thereby realized the production domesticization of the SCR urea tank of marine diesel engine exhaust aftertreatment, strengthened China's marine equipment industry competitive ability in the world.Meanwhile, described urea tank design concept green energy conservation, makes marine diesel engine SCR system increase as few as possible the energy consumption on ship.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model;
Fig. 2 is plan view of the present utility model.
In figure, 1-tank body, 2-ventilation mouth, 3-filler, 4-flow-off, 5-sewage draining exit, 6-interface of the level gauge, 7-thermometer boss, 8-fluid level controller interface, 9-densitometer interface, 10-taphole, 11-steam inlet, 12-temperature sensor interface, 13-steam (vapor) outlet, 14-steam comb, 15-manhole peculiar to vessel, 16-guide plate, 17-seal cup.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As Fig. 1 and Fig. 2, a kind of SCR urea tank for marine diesel engine exhaust aftertreatment, comprises tank body 1, and the top of tank body 1 is provided with filler 3 and ventilation mouth 2, and bottom is provided with taphole 10 and sewage draining exit 5; The sidewall of tank body 1 is provided with flow-off 4; On tank body 1, be also provided with interface of the level gauge 6, thermometer boss 7, fluid level controller interface 8, temperature sensor interface 12, densitometer interface 9.Tank body 1 is welded by 316 corrosion resistant plates, and each face steel plate inwall is all welded with stiffening rib, and to ensure the intensity of full load, tank body 1 base plate below is welded with base, and base below is drilled with bolt hole, tank body can be fixed on engine room floor; Interface of the level gauge 6, thermometer boss 7, fluid level controller interface 8, temperature sensor interface 12, densitometer interface 9 are 316 stainless steels, are welded on tank body 1.
Interface of the level gauge 6 has 2, for connecting level meter, can make staff see intuitively the reserves of urea liquid.
Fluid level controller interface 8 has 2, is connected to respectively low fluid level controller and high fluid level controller.Interface of the level gauge 8 is two seat boards, is welded on tank body 1, by fastening piece, is connected with high and low fluid level controller.When urea liquid liquid level is too low, low fluid level controller action, also reports to the police signal feed back to controller, controller obtains starting urea liquid dispenser pump after signal, by described filler filling urea liquid, when solution height surpasses low fluid level controller, alarm signal is removed; Until high fluid level controller action, by its signal feed back, to controller, controller obtains closing down urea liquid dispenser pump after signal.
Thermometer boss 7 is connected to thermometer, can make staff see intuitively the real time temperature of urea liquid.Thermometer boss 7 is an inipple seat, is welded on tank body 1, by screw thread, is connected with thermometer probe.
Temperature sensor interface 12 is connected to temperature transducer, urea liquid temperature can be reached to controller in real time.When urea liquid temperature is during lower than setting temperature, temperature transducer by signal feed back to controller, controller obtains opening steam inlet valve after signal, vapor stream when described steam pipe coil and urea liquid generation exchange heat, thereby improved the temperature of urea liquid; Until urea liquid temperature is while reaching capping value, temperature transducer is by signal feed back to controller, and controller obtains steam off inlet valve after signal, stops heating.
Densitometer interface 9 is a seat board, is welded on tank body 1, and densitometer interface 9 is connected to density sensor, both can see intuitively urea liquid density, can in real time urea liquid density be reached to controller again.Only have urea liquid in reasonably between density region, controller just can be opened urea rear pump, and urea liquid is sprayed in discharge duct of marine diesel engine road.
Filler 3 is taken over and is formed by filler flange and filler, for supplementing urea liquid, filler is taken over the straight-through bottom from tank body 1 top, and weld mutually with the top board of tank body 1 its top, below is welded with guide plate 16, guide plate 16 is welded and fixed with tank body 1, urea liquid is played to the effect of water conservancy diversion.
Ventilation mouth 2 is positioned at the top of tank body 1, by ventilation mouth flange and ventilation mouth, is taken over and is formed, and ventilation mouth is taken over and tank body 1 welding, and ventilation mouth flange is for being connected with outer tube flange, and ventilation mouth is taken on a straight passage deck.
Flow-off 4 is positioned at place, inclined to one side top, tank body side, comprises seat board and overflow adapter, by fastening piece, two-part is coupled together, and below is taken in overflow seal cup 17, for collecting the urea liquid overflowing.At hull, incline and shake etc. in urea liquid that situation underflow the flows out seal cup below adapter flow to.
Taphole 10, sewage draining exit 5 are positioned at described tank base, and taphole 10 is for outwards carrying qualified urea liquid, and sewage draining exit 5 is for emptying urea liquid.
Sewage draining exit 5 is two, is respectively used in tank body residual with putting of seal cup.
State on tank body 1 and be also provided with steam inlet 11 and steam (vapor) outlet 13, between steam inlet 11 and steam (vapor) outlet 13, by the steam comb 14 being arranged in tank body 1, connect, described steam inlet 11, steam (vapor) outlet 13 are positioned at the below of tank body 1.Steam comb 14 passes into steam when urea liquid temperature is too low, prevents solution crystallization.Steam is taken from the former excess steam that passes into barometric condenser, after the steam pipe coil 14 of flowing through, passes into barometric condenser again, thereby greatly reduces the cooling water inflow of barometric condenser, saves the limited energy on ship.
Interface of the level gauge 6, thermometer boss 7, fluid level controller interface 8, temperature sensor interface 12, densitometer interface 9 are positioned at the front of tank body 1, for connecting corresponding instrument, instrument, to show characteristic, the reserves of urea liquid.
The side of tank body 1 is provided with manhole 15 peculiar to vessel, staff's access way when making, overhauling.
Claims (9)
1. for a SCR urea tank for marine diesel engine exhaust aftertreatment, it is characterized in that: comprise tank body (1), the top of tank body (1) is provided with filler (3) and ventilation mouth (2), and bottom is provided with taphole (10) and sewage draining exit (5); The sidewall of tank body (1) is provided with flow-off (4); On tank body (1), be also provided with interface of the level gauge (6), thermometer boss (7), fluid level controller interface (8), temperature sensor interface (12), densitometer interface (9).
2. the SCR urea tank for marine diesel engine exhaust aftertreatment as claimed in claim 1, is characterized in that: described tank body (1) is welded by 316 corrosion resistant plates, and each face steel plate inwall is all welded with stiffening rib; Described interface of the level gauge (6), thermometer boss (7), fluid level controller interface (8), temperature sensor interface (12), densitometer interface (9) are 316 stainless steels, are welded on tank body (1).
3. the SCR urea tank for marine diesel engine exhaust aftertreatment as claimed in claim 1, it is characterized in that: described filler (3) is taken over and formed by filler flange and filler, filler is taken over the straight-through bottom from tank body (1) top, weld mutually with the top board of tank body (1) its top, below is welded with guide plate (16), guide plate (16) is welded and fixed with tank body (1), urea liquid is played to the effect of water conservancy diversion.
4. the SCR urea tank for marine diesel engine exhaust aftertreatment as claimed in claim 1, it is characterized in that: described ventilation mouth (2) is positioned at the top of tank body (1), by ventilation mouth flange and ventilation mouth, take over and form, ventilation mouth is taken over and tank body (1) welding, and ventilation mouth flange is for being connected with outer tube flange.
5. the SCR urea tank for marine diesel engine exhaust aftertreatment as claimed in claim 1, it is characterized in that: described flow-off (4) is positioned at place, inclined to one side top, tank body (1) side, comprise seat board and overflow adapter, below is taken in described overflow seal cup (17), for collecting the urea liquid overflowing.
6. the SCR urea tank for marine diesel engine exhaust aftertreatment as claimed in claim 1, is characterized in that: described taphole (10), sewage draining exit (5) are positioned at tank base, are respectively used to conveying and the emptying of urea liquid.
7. the SCR urea tank for marine diesel engine exhaust aftertreatment as claimed in claim 1, it is characterized in that: on described tank body (1), be also provided with steam inlet (11) and steam (vapor) outlet (13), between steam inlet (11) and steam (vapor) outlet (13), by the steam comb (14) being arranged in tank body (1), connect, described steam inlet (11), steam (vapor) outlet (13) are positioned at the below of tank body (1).
8. the SCR urea tank for marine diesel engine exhaust aftertreatment as claimed in claim 1, it is characterized in that: described interface of the level gauge (6), thermometer boss (7), fluid level controller interface (8), temperature sensor interface (12), densitometer interface (9) are positioned at the front of tank body (1), be used for connecting corresponding instrument, instrument, to show characteristic, the reserves of urea liquid.
9. the SCR urea tank for marine diesel engine exhaust aftertreatment as claimed in claim 1, is characterized in that: the side of described tank body (1) is provided with manhole peculiar to vessel (15), staff's access way when making, overhauling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231257.3U CN203906053U (en) | 2014-05-08 | 2014-05-08 | SCR urea tank for exhaust aftertreatment for marine diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231257.3U CN203906053U (en) | 2014-05-08 | 2014-05-08 | SCR urea tank for exhaust aftertreatment for marine diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906053U true CN203906053U (en) | 2014-10-29 |
Family
ID=51780341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420231257.3U Expired - Lifetime CN203906053U (en) | 2014-05-08 | 2014-05-08 | SCR urea tank for exhaust aftertreatment for marine diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194350A (en) * | 2016-08-10 | 2016-12-07 | 河北亿利橡塑集团有限公司 | Have the SCR catalysis sound-attenuating system urea tank of portability and ruggedness concurrently |
-
2014
- 2014-05-08 CN CN201420231257.3U patent/CN203906053U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194350A (en) * | 2016-08-10 | 2016-12-07 | 河北亿利橡塑集团有限公司 | Have the SCR catalysis sound-attenuating system urea tank of portability and ruggedness concurrently |
| CN106194350B (en) * | 2016-08-10 | 2018-10-02 | 河北亿利橡塑集团有限公司 | Have both the SCR catalysis sound-attenuating system urea tanks of portability and durability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |