CN106807186A - The standby main frame smoke processing system of extra large frock - Google Patents
The standby main frame smoke processing system of extra large frock Download PDFInfo
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- CN106807186A CN106807186A CN201510856344.7A CN201510856344A CN106807186A CN 106807186 A CN106807186 A CN 106807186A CN 201510856344 A CN201510856344 A CN 201510856344A CN 106807186 A CN106807186 A CN 106807186A
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- urea
- flue gas
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Abstract
A kind of standby main frame smoke processing system of extra large frock, including：The urea of one integrated form reduces tower, multiple urea atomization jetting devices, a urea supply unit and multiple Controlled valves, urea reduction tower is connected by a plurality of flue gas delivery pipe road and received with the smoke exhaust pipe of multiple host and comes from the flue gas that multiple host is discharged, to outer discharge after flue gas is reduced in the presence of carbamide reducing agent；Multiple urea atomization jetting devices are separately positioned on each flue gas delivery pipe road, and the urea reduction tower is delivered to after the flue gas that main frame is discharged is mixed and be atomized with carbamide reducing agent；Urea supply unit is docked with each urea atomization jetting device and supplies carbamide reducing agent to it respectively；Multiple Controlled valves are separately mounted on each flue gas delivery pipe road, are turned on and off corresponding flue gas delivery pipe road by receiving the control signal related with the working condition of main frame, it is to avoid urea, flue gas pour in down a chimney back main frame and damage main frame via flue gas delivery pipe road.
Description
Technical field
The present invention relates to extra large frock for construction applications, more particularly to the standby main frame smoke processing system of extra large frock.
Background technology
With the enhancing increasingly of world environments protective awareness; the sea such as ship, maritime platform frock is also constantly being lifted for the fuel oil quality that main frame burns; but the product NOx of its burning; Sox is still great welding; to this; people come up with various modes and go to process these harmful emissions, and the denitration mode of current design treatment is urea reduction method.One main frame of DNV code requirements should correspond to a reduction tower, but in extra large frock for upper, due to reduction tower take up room it is larger, and due on platform space it is limited, therefore generally reduction tower is integrated together, to solve the problem of such as platform living area, cabin area or loading area insufficient space.
As shown in Figure 1, it is structure chart of the existing extra large frock for the main frame smoke processing system of upper installation, the main frame smoke processing system has an integrated reduction tower 10a, reduction tower 10a is received and is come from three smoke evacuations of main frame, and respectively by three flue gas delivery pipe road 20a feeding reduction towers 10a, one urea atomization jetting device 30a of each setting on every flue gas delivery pipe road 20a, is that each urea atomization jetting device 30a supplies urea by urea dosing unit 40a.During normal work; the flue gas of each main frame flue gas discharge is entered urea atomization jetting device 30a through waste gas pipeline; in urea atomization jetting device 30a mixing is atomized with the urea for spraying into; urea and flue gas after atomization enter reduction tower 10a together; it is reduced into nitrogen and water discharge; but if there is a main shut-down system; then the main frame transfer pipeline side will appear from negative pressure; cause that other machine is discharged fume and the urea steam of condensation can be back to the side of shutdown; cause main frame to damage, or even threaten personal security in cabin.
The content of the invention
Of the invention essentially consisting in provides a kind of extra large frock for being prevented from main shut-down system and causing urea flue gas to pour in down a chimney standby main frame smoke processing system.
In order to solve the above technical problems, the present invention proposes a kind of standby main frame smoke processing system of extra large frock, including：The urea of one integrated form reduces tower, multiple urea atomization jetting devices, a urea supply unit and multiple Controlled valves, urea reduction tower is connected by a plurality of flue gas delivery pipe road and received with the smoke exhaust pipe of multiple host and comes from the flue gas that multiple host is discharged, to outer discharge after flue gas is reduced in the presence of carbamide reducing agent；Multiple urea atomization jetting devices are separately positioned on each flue gas delivery pipe road, and the urea reduction tower is delivered to after the flue gas that main frame is discharged is mixed and be atomized with carbamide reducing agent；Urea supply unit is docked with each urea atomization jetting device and supplies carbamide reducing agent to it respectively；Multiple Controlled valves are separately mounted on each flue gas delivery pipe road, and corresponding flue gas delivery pipe road is turned on and off by receiving the control signal related with the working condition of main frame.
Further, the main frame flue gas processing device also includes a controller, the controller and distribution board or each main-machine communication, for sending the control signal to corresponding Controlled valve according to the status signal for coming from distribution board or each main frame for receiving, and the working state signal of the Controlled valve is sent to main frame or distribution board.
Further, the main frame flue gas processing device also includes：The blower fan of the Controlled valve is connected to by pipeline, the blower fan is controlled by the controller, and the flue gas and urea in the flue gas delivery pipe road and urea atomization jetting device that will remain in Controlled valve and its rear end in the setting time after Controlled valve closing are purged into being reduced in the urea reduction tower.
Further, the main frame flue gas processing device also includes：The first accumulator of the Controlled valve or the blower fan is connected to by pipeline, first accumulator is controlled by the controller, the blower fan is substituted when the blower fan is damaged and realizes remaining flue gas and urea purging.
Further, the Controlled valve is air-powered electromagnetic butterfly valve, including：Valve body, pneumatic valve head and magnetic valve, the valve body are arranged on the flue gas delivery pipe road, and the magnetic valve is controlled by the controller and is turned on and off, and then inflated for deflated to the pneumatic valve head, opens or closes the valve body.
Further, the main frame flue gas processing device also includes：The second accumulator being connected with the air-powered electromagnetic butterfly valve, second accumulator is controlled by the controller, and when not enough from external compressed air, second accumulator supplies compressed air to the pneumatic valve head, controls it to open.
Further, the main frame flue gas processing device also includes being used to be provided for the air-powered electromagnetic butterfly valve compressed air supply unit of compressed air, and the compressed air supply unit includes：The air bottle of air compressor machine, the air dryer being dried to the air after compression and storing compressed air.
Further, the urea supply unit includes：Urea cabin, the urea pump unit that the urea in urea cabin is pumped out and the urea that will be pumped out carry out urea dosing unit that is temporary and outwards conveying, the urea dosing unit includes multiple subelements, and each subelement corresponds the urea supply for being connected to each urea atomization jetting device and corresponding urea atomization jetting device being opened or closed according to the working condition of respective host.
Further, sewage bleeder pipe and bleeder valve are additionally provided with each flue gas delivery pipe road.
Compared with prior art, the present invention has the advantages that：
The main frame smoke processing system sets Controlled valve by each flue gas delivery pipe road; the opening and closing of Controlled valve are made to be linked with the working condition of main frame; ensure corresponding flue gas delivery pipe road turned off in synchronization during main shut-down system, it is to avoid urea, flue gas pour in down a chimney back main frame and damage main frame via flue gas delivery pipe road.
Brief description of the drawings
Fig. 1 is the schematic diagram of the standby main frame smoke processing system of existing extra large frock；
Fig. 2 is the schematic diagram of main frame smoke processing system of the invention.
Description of reference numerals is as follows：10a, urea reduction tower；20a, flue gas delivery pipe road；30a, urea atomization jetting device；40a, urea dosing unit；10th, urea reduction tower；20th, flue gas delivery pipe road；201st, bleeder pipe；202nd, bleeder valve；30th, urea atomization jetting device；40th, urea supply unit；401st, urea cabin；402nd, urea pump unit；403rd, urea dosing unit；50th, Controlled valve；501st, valve body；502nd, pneumatic valve head；503rd, magnetic valve；60th, controller；70th, blower fan；80th, compressed air supply unit；901st, accumulator；902nd, accumulator；903rd, accumulator.
Specific embodiment
In order to further illustrate principle of the invention and structure, in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.
Refering to Fig. 2, the standby main frame smoke processing system of the extra large frock includes：A plurality of flue gas delivery pipe road 20, multiple urea atomization jetting devices 30 and each urea atomization jetting device 30 urea supply unit 40 for docking and the multiple Controlled valves 50 for being arranged on each flue gas delivery pipe road 20 being separately positioned on each flue gas delivery pipe road 20 that the urea reduction tower 10 of one integrated form is connected with the urea reduction tower 10 of integrated form.
The urea of the integrated form reduces the flue gas that tower 10 is connected with the smoke exhaust pipe of multiple host by a plurality of flue gas delivery pipe road 20 and receives its discharge, multiple urea atomization jetting devices 30 are used for the carbamide reducing agent that is supplied with urea supply unit 40 of flue gas that discharges main frame and are mixed with setting ratio and delivered to after being atomized during urea reduces tower 10, outwards discharge again after making it be reduced into the innocuous gas such as nitrogen and vapor in urea reduction tower 10, solves the problems, such as environmental pollution.
Specifically, urea supply unit 40 includes：Urea cabin 401, the urea pump unit 402 that the urea in urea cabin 401 is pumped out and the urea that will be pumped out carry out urea dosing unit 403 that is temporary and outwards conveying, urea dosing unit 403 includes multiple subelements, each subelement is corresponded be connected with the urea atomization jetting device 30 on each flue gas delivery pipe road 20 respectively, and the urea supply of corresponding urea atomization jetting device 30 is opened or closed according to the working condition of respective host.
A Controlled valve 50 is respectively mounted on each flue gas delivery pipe road 20, the Controlled valve 50 is turned on and off flue gas delivery pipe road 20 by receiving a control signal related to the working condition of main frame, such as, when a certain main frame unlatching work, corresponding Controlled valve 50 receives a control signal and opens automatically, make the flue gas delivery pipe road 20 being connected with the main frame unimpeded, the flue gas that the main frame is discharged is reduced into innocuous gas in can reducing tower 10 into urea；When a certain main shut-down system; corresponding Controlled valve 50 receives a control signal and closes automatically; the flue gas delivery pipe road 20 being connected with the main frame is cut off, prevents from reducing urea and flue gas and pour in down a chimney via flue gas delivery pipe road 20 being back to the main frame of the shutdown and cause main frame to damage.
The Controlled valve can be motor-driven valve, magnetic valve, pneumatic operated valve or its combination.
Larger for the flue gas delivery pipe caliber of main frame in view of extra large frock, the Controlled valve of the present embodiment uses air-powered electromagnetic butterfly valve, and it includes：Valve body 501, pneumatic valve head 502 and magnetic valve 503.Valve body 501 is arranged on flue gas delivery pipe road 20, the action element that pneumatic valve head 502 is arranged on valve body 501 and inside pneumatic valve head 502 is connected with the valve plate in valve body 501, magnetic valve 503 can be general two-position three-way valve, with three passages, wherein first passage connects high-pressure air source, second channel connects pneumatic valve head 502, third channel is gas vent, the magnetic valve 503 can receive a control signal and be turned on and off, when magnetic valve 503 is opened, pneumatic valve head 502 is connected and is inflated with high-pressure air source, and the action element in it is acted in the case where the pressure of high-pressure air source is promoted while inflation, and then rotate 90 degree with the valve plate in moving valve 501 and open valve body 501, open flue gas delivery pipe road 20；When magnetic valve 503 is closed, pneumatic valve head 502 is connected with gas vent and is outwards vented, and as exhaust is carried out, action element in pneumatic valve head 502 gradually resets and is returned with the valve plate in moving valve 501 and turn 90 degrees and valve body 501, as valve body 501 is closed, corresponding flue gas delivery pipe road 20 cuts off.
The high-pressure air source of the air-powered electromagnetic butterfly valve comes from a pneumatic manifold, and the compressed air of the pneumatic manifold is provided by a compressed air supply unit 80, and it includes：Air compressor machine 801, air dryer 802 and air bottle 803, air compressor machine 801 extract extraneous air and it are compressed, and are stored into air bottle 803 after being dried through an air dryer 802 after compression and are supplied to pneumatic manifold.
The pneumatic manifold is also connected with the accumulator 903 of a storage compressed air, and the accumulator 903 mainly maintains manifold pressure, plays the timely responding to property for ensuring to open and close air-powered electromagnetic butterfly valve 50.
The pneumatic valve head 502 of the air-powered electromagnetic butterfly valve 50 is also connected with an accumulator 902, when the compressed air from pneumatic manifold is not enough, pneumatic valve head 502 is supplied compressed air to by the accumulator 902, control it to open, it is to avoid the standby main frame smoke processing system of extra large frock will not because compressed air supply unit 80 is damaged cannot normal work.
The Controlled valve 50 can directly receive the signal that comes from main frame or distribution board and be turned on and off, and can also receive the control signal that comes from a controller 60 and be turned on and off.The controller 60 and distribution board and main-machine communication, what reception came from distribution board or each main frame the status signal such as stops, starts shooting on respective host, and the control signals such as unlatching, closing are sent to corresponding Controlled valve 50 according to the status signal, after Controlled valve 50 is turned on and off, controller 60 is informed the working condition of its Controlled valve 50 by sending signal to distribution board or main frame, distribution board or main frame is responded according to the working condition of Controlled valve 50.
The standby main frame smoke processing system of the extra large frock also includes a blower fan 70 that Controlled valve 50 is connected to by pipeline, the blower fan 70 is controlled by controller 60, and the flue gas and urea in remaining in Controlled valve 50 in the setting time after the closing of Controlled valve 50 and in the flue gas delivery pipe road 20 and urea atomization jetting device 30 of its rear end are purged into being reduced in urea reduction tower 10.
An accumulator 901 is also set up on the side of blower fan 70, the accumulator 901 is connected to Controlled valve 50 or blower fan 70 by pipeline, and controller 60 is also controlled by, it is purged into urea reduction tower 10 for substituting flue gas and urea that blower fan 70 will be remained in the flue gas delivery pipe road 20 and urea atomization jetting device 30 of Controlled valve 50 and its rear end when blower fan 70 is damaged.
Preferably, sewage bleeder pipe 201 and bleeder valve 202 are also associated with each flue gas delivery pipe road 20, bleeder valve 202 can be controlled by controller 60, also can manual hand manipulation and release the urea and condensed water remained in flue gas delivery pipe road 20, so as to further improve the security of the main frame smoke processing system.
With continued reference to Fig. 2, the operation principle of the main frame smoke processing system is as follows：
When a certain main frame prepares to start, distribution board and main frame provide signal to controller 60, and controller 60 sends control signal to the Controlled valve 50 for associating and turns on, after the unlatching of Controlled valve 50, the sending signal of controller 60 informs that Controlled valve 50 is in opening to panel and main frame, can start shooting.When a certain main frame is in less than 270Rpm or shuts down suddenly; distribution board provides stopping signal to controller 60; controller 60 sends Controlled valve 50 of the control signal to association; associated controlled valve 50 is closed after 60s; controller 60 sends control signal to blower fan 70 simultaneously starts it; flue gas and urea in the Controlled valve 50 and flue gas delivery pipe road 20 and urea atomization jetting device 30 of its rear end will be remained in be purged into being reduced in urea reduction tower 10; blower fan 70 is closed after 300s; if blower fan 70 is damaged, accumulator 902 will complete this work.
During emergency rating, if main frame pretrigger and having provided control signal to Controlled valve 50, but Controlled valve 50 is not switched on, now, controller 60 will not provide the open signal of Controlled valve 50 to distribution board and main frame, then main frame is locked out, and not allow to start, then, controller 6 will send out alarm signal to the standby All Control Center of extra large frock.
In other emergency threat to life and production safety, can manual mode open Controlled valve 50, stopping go back original system unlatching, enabled again until after whole failture evacuations.
Preferable possible embodiments of the invention are these are only, are not limited the scope of the invention that the equivalent structure change done by all utilization description of the invention and accompanying drawing content is all contained in protection scope of the present invention.
Claims (9)
1. the standby main frame smoke processing system of a kind of extra large frock, it is characterised in that including：
The urea reduction tower of one integrated form, is connected and receives the flue gas for coming from multiple host discharge, to outer discharge after flue gas is reduced in the presence of carbamide reducing agent by a plurality of flue gas delivery pipe road with the smoke exhaust pipe of multiple host；
Multiple urea atomization jetting devices, are separately positioned on each flue gas delivery pipe road, and the urea reduction tower is delivered to after the flue gas that main frame is discharged is mixed and be atomized with carbamide reducing agent；
Urea supply unit, docks with each urea atomization jetting device and supplies carbamide reducing agent to it respectively；
Multiple Controlled valves, are separately mounted on each flue gas delivery pipe road, and corresponding flue gas delivery pipe road is turned on and off by receiving the control signal related with the working condition of main frame.
2. the standby main frame flue gas processing device of sea frock as claimed in claim 1, it is characterized in that, also include a controller, the controller and distribution board or each main-machine communication, for sending the control signal to corresponding Controlled valve according to the status signal for coming from distribution board or each main frame for receiving, and the working state signal of the Controlled valve is sent to main frame or distribution board.
3. the standby main frame flue gas processing device of sea frock as claimed in claim 2, it is characterised in that also include：The blower fan of the Controlled valve is connected to by pipeline, the blower fan is controlled by the controller, and the flue gas and urea in the flue gas delivery pipe road and urea atomization jetting device that will remain in Controlled valve and its rear end in the setting time after Controlled valve closing are purged into being reduced in the urea reduction tower.
4. the standby main frame flue gas processing device of sea frock as claimed in claim 3, it is characterised in that also include：The first accumulator of the Controlled valve or the blower fan is connected to by pipeline, first accumulator is controlled by the controller, the blower fan is substituted when the blower fan is damaged and realizes remaining flue gas and urea purging.
5. the standby main frame flue gas processing device of sea frock as claimed in claim 2, it is characterised in that the Controlled valve is air-powered electromagnetic butterfly valve, including：Valve body, pneumatic valve head and magnetic valve, the valve body are arranged on the flue gas delivery pipe road, and the magnetic valve is controlled by the controller and is turned on and off, and then inflated for deflated to the pneumatic valve head, opens or closes the valve body.
6. the standby main frame flue gas processing device of sea frock as claimed in claim 5, it is characterised in that also include：The second accumulator being connected with the air-powered electromagnetic butterfly valve, second accumulator is controlled by the controller, and when not enough from external compressed air, second accumulator supplies compressed air to the pneumatic valve head, controls it to open.
7. the standby main frame flue gas processing device of sea frock as claimed in claim 5, it is characterised in that also including being used to be provided for the air-powered electromagnetic butterfly valve compressed air supply unit of compressed air, the compressed air supply unit includes：The air bottle of air compressor machine, the air dryer being dried to the air after compression and storing compressed air.
8. the standby main frame flue gas processing device of sea frock as claimed in claim 1, it is characterised in that the urea supply unit includes：Urea cabin, the urea pump unit that the urea in urea cabin is pumped out and the urea that will be pumped out carry out urea dosing unit that is temporary and outwards conveying, the urea dosing unit includes multiple subelements, and each subelement corresponds the urea supply for being connected to each urea atomization jetting device and corresponding urea atomization jetting device being opened or closed according to the working condition of respective host.
9. the standby main frame flue gas processing device of sea frock as claimed in claim 1, it is characterised in that be additionally provided with sewage bleeder pipe and bleeder valve on each flue gas delivery pipe road.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510856344.7A CN106807186A (en) | 2015-11-30 | 2015-11-30 | The standby main frame smoke processing system of extra large frock |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510856344.7A CN106807186A (en) | 2015-11-30 | 2015-11-30 | The standby main frame smoke processing system of extra large frock |
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| CN201510856344.7A Pending CN106807186A (en) | 2015-11-30 | 2015-11-30 | The standby main frame smoke processing system of extra large frock |
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| CN103703222A (en) * | 2011-07-19 | 2014-04-02 | 戴姆勒股份公司 | Method for determining quality of reducing agent solution containing ammonia used to reduce nitrite oxide |
| CN205235723U (en) * | 2015-11-30 | 2016-05-18 | 中国国际海运集装箱(集团)股份有限公司 | Host computer flue gas processing system that sea frock is equipped with |
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2015
- 2015-11-30 CN CN201510856344.7A patent/CN106807186A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1424457A (en) * | 1972-01-24 | 1976-02-11 | Union Carbide Corp | Selective adsorption process for air separation |
| JPH07279650A (en) * | 1994-04-05 | 1995-10-27 | Niigata Eng Co Ltd | Reducing agent spray device of exhaust gas denitrizer |
| JP2000130238A (en) * | 1998-10-20 | 2000-05-09 | Toyota Motor Corp | Multicylinder internal combustion engine |
| CN101014756A (en) * | 2004-06-18 | 2007-08-08 | 约翰逊马西有限公司 | Methods of regenerating a nox absorbent |
| JP2010071149A (en) * | 2008-09-17 | 2010-04-02 | Yanmar Co Ltd | Exhaust gas purifying device |
| CN103703222A (en) * | 2011-07-19 | 2014-04-02 | 戴姆勒股份公司 | Method for determining quality of reducing agent solution containing ammonia used to reduce nitrite oxide |
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Address after: 264000 No. 70 East Island Road, Zhifu District, Shandong, Yantai, Zhifu Applicant after: YANTAI CIMC RAFFLES SHIPYARD Co.,Ltd. Applicant after: China International Marine Containers (Group) Co.,Ltd. Address before: No. 2 Shekou Harbour Road in Shenzhen city of Guangdong Province in 518000 Applicant before: China International Marine Containers (Group) Co.,Ltd. Applicant before: YANTAI CIMC RAFFLES SHIPYARD Co.,Ltd. |