CN204961033U - Boats and ships waste gas deNOx systems - Google Patents
Boats and ships waste gas deNOx systems Download PDFInfo
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- CN204961033U CN204961033U CN201520555458.3U CN201520555458U CN204961033U CN 204961033 U CN204961033 U CN 204961033U CN 201520555458 U CN201520555458 U CN 201520555458U CN 204961033 U CN204961033 U CN 204961033U
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- waste gas
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- 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
Abstract
The utility model provides a boats and ships waste gas deNOx systems, includes waste gas denitration pipeline, waste gas denitration pipeline is connected with the exhaust end of diesel engine through first valve, the in line pipeline of waste gas, the in line pipeline of waste gas pass through the second valve to be connected with the exhaust end of diesel engine, and the in line pipeline of waste gas includes in line main line of waste gas and the in line branch road of waste gas, denitration reactor, denitration reactor include reacting chamber and exhaust steam passage, and the reacting chamber is connected in waste gas denitration pipeline, and the exhaust steam passage is connected in the in line branch road of waste gas, wherein, a valve open, second valve are closed, and waste gas is discharged after the reacting chamber carries out the denitration through waste gas denitration pipeline, first valve is closed, the 2nd valve open, and partly waste gas is discharged through the in line main line of waste gas, and another part waste gas keeps warm to the reactor in the in line branch road of waste gas entering denitration reactor's exhaust steam passage. The utility model discloses set up exhaust steam passage and the in line branch road of waste gas, preheat, keep warm, the degradable low energy consumption through the reacting chamber of waste gas to denitration reactor.
Description
Technical field
The utility model relates to atmospheric environment protection field, particularly about a kind of marine exhaust denitrating system.
Background technique
According to the requirement of the amendment of " prevent boats and ships from causing atmospheric pollution rule " in " MARPOL73/78 pact " supplemental provisions VI that International Maritime Organization (IMO) is passed through, the nitrogen oxide in marine exhaust have to pass through process up to standard after could discharge.For low-speed marine diesel engine (rotating speed n<130rpm), the amount of nitrogen oxides after process is less than 3.4g/kwh, and for current low-speed diesel engine, only by Optimization of Diesel Engine combustion manner, cannot reach this emission request.Therefore, boat diesel engine must be equipped with marine exhaust denitrating system, and selective catalytic reduction technology (SelectiveCatalyticReduction, SCR) is a kind of Diesel Engine After-treatment Technology that current application is the strongest.
At present, marine exhaust denitrating system only runs entering emission control region (EmissionControlArea, ECA region) Shi Caihui, and boats and ships are when non-ECA area operation, and denitrification apparatus is in outage state.For the boats and ships adopting SCR technology, when sailing for ECA region by non-ECA region, the temperature in SCR reactor is lower, cannot meet the temperature needed for denitration reaction; Simultaneously due to the sealing problem of valve, portion may be had and be leaked into SCR reactor, if SCR reactor is in low-temperature condition for a long time, the SO in waste gas can be caused
3condensation, forms sulfuric acid, causes reactor corrosion, and the therefore preheating of SCR reactor, Insulation are necessary.But traditional denitrification apparatus adopts electric heating to carry out preheating, insulation to SCR reactor, and electric quantity consumption is large, and electric heating equipment is soon aging, and efficiency is low.
Model utility content
The purpose of this utility model is to provide a kind of marine exhaust denitrating system, carries out preheating, insulation in non-ECA region without the need to adopting electric heating to reactor, capable of reducing energy consumption.
Marine exhaust denitrating system of the present utility model, comprises
Exhaust gas denitration pipeline, this exhaust gas denitration pipeline is connected with the exhaust end of diesel engine by the first valve;
The in line pipeline of waste gas, the in line pipeline of this waste gas is connected with the exhaust end of diesel engine by the second valve, and the in line pipeline of this waste gas comprises the in line main line of waste gas and the in line branch road of waste gas;
Benitration reactor, this Benitration reactor comprises reaction chamber and exhaust steam passage, and this reaction chamber is connected in this exhaust gas denitration pipeline, and this exhaust steam passage is connected in the in line branch road of this waste gas; Wherein,
This first valve opening, the second valve closing, waste gas is discharged after this reaction chamber carries out denitration through this exhaust gas denitration pipeline; This first valve closing, the second valve opening, a part of waste gas is discharged through the in line main line of this waste gas, and another part waste gas enters in the exhaust steam passage of this Benitration reactor through the in line branch road of this waste gas and is incubated this reaction chamber.
Further, separated between this reaction chamber and this exhaust steam passage by dividing plate, be not communicated with mutually between this reaction chamber with this exhaust steam passage, this reaction chamber and this exhaust steam passage are respectively equipped with suction port and air outlet.
Further, at least one this dividing plate is provided with in this Benitration reactor, this Benitration reactor is cylindrical structure, the axis of this at least one dividing plate this Benitration reactor parallel in the circumference of this Benitration reactor arranges and forms the exhaust steam passage of respective amount, and each exhaust steam passage is all communicated with the in line branch road of this waste gas.
Further, be provided with catalyst layer in this reaction chamber, this catalyst layer is latticed setting in this reaction chamber.
Further, the exhaust end of this diesel engine is provided with exhaust gas centralized gas tank, and this exhaust gas denitration pipeline is connected with this exhaust gas centralized gas tank by this first valve, and the in line pipeline of this waste gas is connected with this exhaust gas centralized gas tank by this second valve.
Further, the inlet end of this diesel engine is provided with turbosupercharger, this turbosupercharger comprises exhaust gas inlet end, waste gas outlet end, air intlet end and air outlet slit end, this air intlet end is connected with the scavenging air box of this diesel engine, this air outlet slit end is connected with the inlet end of this diesel engine, this exhaust gas inlet end is connected with this exhaust gas denitration pipeline and the in line pipeline of this waste gas, and this waste gas outlet end is communicated with air.
Further, in this exhaust gas denitration pipeline, be also provided with vaporizer and mixer, before this mixer is positioned at this reaction chamber, before this vaporizer is positioned at this mixer, in this vaporizer, be provided with urea liquid spray gun.
Further, be provided with the 3rd valve and the 4th valve in the in line branch road of this waste gas, this exhaust gas denitration pipeline is provided with the 5th valve, before the 3rd valve is positioned at this exhaust steam passage, after 4th valve is positioned at this exhaust steam passage, after the 5th valve is positioned at this reaction chamber.
Further, induced draught fan is provided with between the 4th valve and this exhaust steam passage.
Further, this first valve, the second valve, the 3rd valve and the 5th valve are air-operated bi-directional valve, and the 4th valve is one-way valve.
In embodiment of the present utility model, reaction chamber and exhaust steam passage is separated to form in Benitration reactor, when boats and ships run in non-ECA region, the portion in the in line pipeline of waste gas can be made to enter in Benitration reactor through the in line branch road of waste gas, thus utilize the high temperature of waste gas to carry out preheating to the reaction chamber of Benitration reactor, insulation, both can ensure when boats and ships enter ECA region, the temperature of Benitration reactor can meet the temperature needed for denitration reaction, improve denitration efficiency, avoid the too low sulfuric acid condensation caused of temperature due to Benitration reactor simultaneously, alleviate equipment corrosion degree.When boats and ships run in ECA region, by the switch of respective valves, exhaust steam passage in Benitration reactor is closed, thus waste gas is all entered in the reaction chamber of Benitration reactor, denitration reaction normally carries out, and reaches denitration effect.
Accompanying drawing explanation
Fig. 1 is the composition frame chart of marine exhaust denitrating system in the utility model embodiment.
Fig. 2 is the structural representation of Benitration reactor in the utility model embodiment.
Fig. 3 is the structural representation of Benitration reactor in another embodiment of the utility model.
Embodiment
For further setting forth the utility model for the technological means reaching predetermined model utility object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to embodiment of the present utility model, structure, feature and effect thereof, be described in detail as follows.
First it should be noted that, in this specification, " before " and " afterwards " are that " afterwards " namely refers to the downstream being positioned at exhaust gas flow direction using the flow direction of waste gas in pipeline as with reference to direction.
Refer to Fig. 1, the marine exhaust denitrating system of the utility model embodiment comprises the exhaust gas centralized gas tank 15 and turbosupercharger 16 that are connected with diesel engine 12, be connected to the exhaust gas denitration pipeline 11 between exhaust gas centralized gas tank 15 and turbosupercharger 16 and the in line pipeline 13 of waste gas, wherein, the in line pipeline of waste gas 13 comprises the in line main line of waste gas 132 and the in line branch road 133 of waste gas.The marine exhaust denitrating system of the utility model embodiment also comprises the first valve 111, vaporizer 113, mixer 114 and the 5th valve 112 that are arranged in exhaust gas denitration pipeline 11, be arranged in the second valve 131 of the in line branch road 133 of waste gas, the 3rd valve 134, the 4th valve 135 and induced draught fan 136, and the Benitration reactor 14 be connected with exhaust gas denitration pipeline 11, the in line branch road 133 of waste gas respectively.
Particularly, exhaust gas centralized gas tank 15 is positioned at the exhaust end 121 of diesel engine 12, and exhaust gas centralized gas tank 15 is for the waste gas collecting boat diesel engine 12 and give off and be expelled in follow-up pipeline by waste gas.
Turbosupercharger 16 is positioned at the inlet end 122 of diesel engine 12, turbosupercharger 16 is for being transformed into the energetic portions in the waste gas of High Temperature High Pressure in the fresh air collected by the scavenging air box 123 of diesel engine 12, and fresh air enters boat diesel engine 12 and carries out next round burning.Particularly, turbosupercharger 16 comprises exhaust gas inlet end 161, waste gas outlet end 162, air outlet slit end 163 and air intlet end 164, wherein, air intlet end 164 is connected with the scavenging air box 123 of diesel engine 12, air outlet slit end 163 is connected with the inlet end 122 of diesel engine 12, exhaust gas inlet end 161 is connected with exhaust gas denitration pipeline 11 and the in line pipeline 13 of waste gas, and waste gas outlet end 162 is communicated with air.
Benitration reactor 14 is connected with exhaust gas denitration pipeline 11, the in line branch road 133 of waste gas respectively, Benitration reactor 14 comprises reaction chamber 141 and exhaust steam passage 142, reaction chamber 141 is connected to exhaust gas denitration pipeline 11, reaction chamber 141 is for carrying out denitration process to waste gas, exhaust steam passage 142 is connected to the in line branch road 133 of waste gas, for the circulation of waste gas in the in line branch road 133 of waste gas.
Particularly, incorporated by reference to Fig. 2, separated by dividing plate 145 between reaction chamber 141 and exhaust steam passage 142, and adjacent and not to be communicated with mutually between reaction chamber 141 with exhaust steam passage 142, reaction chamber 141 and exhaust steam passage 142 are respectively equipped with suction port (not shown) and air outlet (not shown).Benitration reactor 14 is cylindrical structure, the number of dividing plate 145 is at least 1, the axis of this at least one dividing plate 145 parallel Benitration reactor 14 in the circumference of Benitration reactor 14 arranges and forms the exhaust steam passage 142 of respective amount (equal number), and all in line with the waste gas branch road 133 of each exhaust steam passage 142 is communicated with.In the present embodiment, the number of dividing plate 145 is 1, dividing plate 145 is arranged along the axis of Benitration reactor 14, dividing plate 145 forms exhaust steam passage 142 with the roundlet segmental arc of the housing 143 of Benitration reactor 14, dividing plate 145 and the great circle segmental arc forming reactions room 141 of the housing 143 of Benitration reactor 14, be provided with the catalyst layer 146 for carrying out denitration process to waste gas in reaction chamber 141.In of the present utility model another is implemented, as shown in Figure 3, Benitration reactor 14 is provided with 4 dividing plates 145,4 dividing plates 145 are symmetrical arranged along the axis of Benitration reactor 14 and form 4 exhaust steam passages 142, these 4 exhaust steam passages 142 are all communicated with in the in line branch road 133 of waste gas, for realizing the connection between 4 exhaust steam passages 142, the communicating passage between exhaust steam passage 142 can be set in two of Benitration reactor 14 end.Understandably, the quantity of dividing plate 145 and set-up mode can adjust, not as limit according to the temperature of the size of Benitration reactor 14, capacity and required heating.
Referring again to Fig. 1, exhaust gas denitration pipeline 11 is connected by the exhaust gas centralized gas tank 15 of the first valve 111 with the exhaust end 121 being positioned at diesel engine 12, vaporizer 113, mixer 114 and the 5th valve 112 are connected in exhaust gas denitration pipeline 11, 5th valve 112 is between reaction chamber 141 and turbosupercharger 16, before mixer 114 is arranged on reaction chamber 141, before vaporizer 113 is arranged on mixer 114, urea liquid spray gun 115 is provided with in vaporizer 113, wherein, urea liquid spray gun 115 is for passing through atomization to urea liquid, vaporizer 113 is used for that urea liquid is hydrolyzed and generates ammonia, the effect of mixer 114 is fully mixed with waste gas by ammonia, undercompounding can cause waste gas in reaction chamber 141, react insufficient, waste gas treatment not only can be caused not up to standard, the escaping of ammonia also can increase simultaneously.In this enforcement, the first valve 111 and the 5th valve 112 are air-operated bi-directional valve door, and in another embodiment of the present utility model, the 5th valve 112 also can adopt one-way valve.When the first valve 111 and the 5th valve 112 are opened, the waste gas that diesel engine 12 produces enters in exhaust gas denitration pipeline 11 by exhaust gas centralized gas tank 15, first waste gas enter vaporizer 113, then, urea liquid decomposes the ammonia generated and enter mixer 114 together with marine exhaust, in mixer 114, abundant mixed gas enters in the reaction chamber 141 of Benitration reactor 14, carries out denitration, make NO, NO in waste gas by catalyst layer 146 pairs of waste gas
2be reduced to N
2and H
2o, finally, waste gas after denitration enters turbosupercharger 16 through the 5th valve 112, energetic portions in the waste gas of High Temperature High Pressure is transformed in the fresh air collected by scavenging air box 123 by turbosupercharger 16, fresh air enters boat diesel engine 12 and carries out next round burning, and the waste gas after process drains in air through the waste gas outlet end 162 of turbosupercharger 16.
The in line pipeline 13 of waste gas is connected by the exhaust gas centralized gas tank 15 of the second valve 131 with the exhaust end 121 of diesel engine 12, and the in line pipeline of waste gas 13 is divided into the in line main line of waste gas 132 and the in line branch road 133 of waste gas after the second valve 131.Particularly, the in line main pipeline 132 of waste gas is connected between the second valve 131 and turbosupercharger 16, and most of waste gas is direct after entering the in line pipeline of waste gas 13 discharges after the in line main pipeline 132 of waste gas arrives turbosupercharger 16.The 3rd valve 134, the 4th valve 135 and induced draught fan 136 is provided with in the in line branch road 133 of waste gas, wherein, before 3rd valve 134 is positioned at the exhaust steam passage 142 of Benitration reactor 14, after 4th valve 135 is positioned at the exhaust steam passage 142 of Benitration reactor 14, induced draught fan 136 is connected between exhaust steam passage 142 and the 4th valve 135, so, the another part entered in the waste gas of the in line pipeline 13 of waste gas enters in the exhaust steam passage 142 of Benitration reactor 14 through the 3rd valve 134, then discharges after arriving turbosupercharger 16 via induced draught fan 136, the 4th valve 135.Due to flow through the waste gas of exhaust steam passage 142 for being incubated reaction chamber 141, preheating, therefore, for the exhausted air quantity entering exhaust steam passage 142, must can ensure that the temperature of reaction chamber 141 is more than 200 DEG C, and the effect of induced draught fan 136 be ensure enter exhaust steam passage exhausted air quantity and prevent exhaust gas recirculation.In the present embodiment, the second valve 131 and the 3rd valve 134 are air-operated bi-directional valve door, and the 4th valve 135 is one-way cock.In another embodiment of the present utility model, the 3rd valve 134 and the 4th valve 135 also can be one-way cock.
When boats and ships run in ECA region, by opening the first valve 111 and the 5th valve 112, closing the second valve 131 simultaneously, waste gas can be made to discharge after reaction chamber 141 carries out denitration through exhaust gas denitration pipeline 11, to meet the exhaust emission requirements of current region.
When boats and ships are at non-ECA area operation, close the first valve 111 and the 5th valve 112, open the second valve 131, the 3rd valve 134 and the 4th valve 135 simultaneously, can make waste gas from exhaust gas centralized gas tank 15 out after do not enter the reaction chamber 141 of Benitration reactor 14, and make most of waste gas directly enter turbosupercharger 16 by the in line main line 132 of waste gas, another part waste gas enters in the exhaust steam passage 142 of Benitration reactor 14 by the 3rd valve 134, thus reach the effect of Benitration reactor 14 being carried out to preheating insulation, decrease power consumption and equipment corrosion.
In sum, marine exhaust denitrating system of the present utility model at least comprises following advantage:
The utility model adds dividing plate in Benitration reactor, thus the exhaust steam passage adjacent with reaction chamber is formed in Benitration reactor, when boats and ships run in non-ECA region, the portion in the in line pipeline of waste gas can be made to enter in Benitration reactor through the in line branch road of waste gas, because waste gas is in the condition of high temperature, the high temperature of waste gas can be utilized to carry out preheating to the reaction chamber of Benitration reactor, insulation, both can ensure when boats and ships enter ECA region, the temperature of Benitration reactor can meet the temperature needed for denitration reaction, improve denitration efficiency, avoid the too low sulfuric acid condensation caused of temperature due to Benitration reactor simultaneously, alleviate equipment corrosion degree.When boats and ships run in ECA region, by the switch of respective valves, exhaust steam passage in Benitration reactor is closed, thus waste gas is all entered in the reaction chamber of Benitration reactor, denitration reaction normally carries out, and reaches denitration effect.The utility model forms exhaust gas bypass by adding dividing plate in Benitration reactor, and arranges the waste gas in line branch road corresponding to this exhaust gas bypass, and structure is simple, carries out preheating, insulation in non-ECA region without the need to adopting electric heating to reactor, capable of reducing energy consumption.
Finally, the utility model illustrates its effect reached with specific embodiment:
Embodiment one:
Certain 72000DWT Bulk carrier, main engine power is 8000kw, and exhaust gas flow is 60000kg/h, and wherein the content of nitrogen oxide is 13g/kwh.Use marine exhaust denitrating system of the present utility model, waste gas amount of nitrogen oxides after treatment can reach below 3g/kwh, can reach the emission request of IMO to nitrogen oxide.Meanwhile, the power consumption that Benitration reactor preheating insulation is saved is 15kw, and finds no sulfuric acid and to condense the corrosion caused.
Embodiment two:
Certain 150000DWT crude oil carrier, main engine power is 15000kw, and exhaust gas flow is about 130000kg/h, and wherein the content of nitrogen oxide is 13.8g/kwh.Use marine exhaust denitrating system of the present utility model, waste gas amount of nitrogen oxides after treatment can reach below 3.2g/kwh, can reach the emission request of IMO to nitrogen oxide.Meanwhile, the power consumption that Benitration reactor preheating insulation is saved is 32kw, and finds no sulfuric acid and to condense the corrosion caused.
Embodiment three:
Certain 2000TEU Container ship, main engine power is 17000kw, and exhaust gas flow is 150000kg/h, and wherein nitrous oxides concentration is 12g/kwh.Use marine exhaust denitrating system of the present utility model, waste gas amount of nitrogen oxides after treatment can reach below 3g/kwh, can reach the emission request of IMO to nitrogen oxide.Meanwhile, the power consumption that Benitration reactor preheating insulation is saved is 35kw, and finds no sulfuric acid and to condense the corrosion caused.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. a marine exhaust denitrating system, is characterized in that: comprise
Exhaust gas denitration pipeline (11), this exhaust gas denitration pipeline (11) is connected with the exhaust end (121) of diesel engine (12) by the first valve (111);
The in line pipeline of waste gas (13), the in line pipeline of this waste gas (13) is connected with the exhaust end (121) of diesel engine (12) by the second valve (131), and the in line pipeline of this waste gas (13) comprises the in line main line of waste gas (132) and the in line branch road of waste gas (133);
Benitration reactor (14), this Benitration reactor (14) comprises reaction chamber (141) and exhaust steam passage (142), this reaction chamber (141) is connected in this exhaust gas denitration pipeline (11), and this exhaust steam passage (142) is connected in the in line branch road of this waste gas (133); Wherein,
This first valve (111) is opened, the second valve (131) is closed, and waste gas is discharged after this reaction chamber (141) carries out denitration through this exhaust gas denitration pipeline (11); This first valve (111) is closed, the second valve (131) is opened, part waste gas is discharged through the in line main line of this waste gas (132), and another part waste gas enters in the exhaust steam passage (142) of this Benitration reactor (14) through the in line branch road of this waste gas (133) and is incubated this reaction chamber (141).
2. marine exhaust denitrating system as claimed in claim 1, it is characterized in that: separated by dividing plate (145) between this reaction chamber (141) and this exhaust steam passage (142), be not communicated with mutually between this reaction chamber (141) with this exhaust steam passage (142), this reaction chamber (141) and this exhaust steam passage (142) are respectively equipped with suction port and air outlet.
3. marine exhaust denitrating system as claimed in claim 2, it is characterized in that: in this Benitration reactor (14), be provided with at least one this dividing plate (145), this Benitration reactor (14) is cylindrical structure, the axis of this at least one dividing plate (145) this Benitration reactor (14) parallel in the circumference of this Benitration reactor (14) arranges and forms the exhaust steam passage (142) of respective amount, and each exhaust steam passage (142) is all communicated with the in line branch road of this waste gas (133).
4. marine exhaust denitrating system as claimed in claim 1, it is characterized in that: be provided with catalyst layer (146) in this reaction chamber (141), this catalyst layer (146) is latticed setting in this reaction chamber (141).
5. marine exhaust denitrating system as claimed in claim 1, it is characterized in that: the exhaust end (121) of this diesel engine (12) is provided with exhaust gas centralized gas tank (15), this exhaust gas denitration pipeline (11) is connected with this exhaust gas centralized gas tank (15) by this first valve (111), and the in line pipeline of this waste gas (13) is connected with this exhaust gas centralized gas tank (15) by this second valve (131).
6. marine exhaust denitrating system as claimed in claim 1, it is characterized in that: the inlet end (122) of this diesel engine (12) is provided with turbosupercharger (16), this turbosupercharger (16) comprises exhaust gas inlet end (161), waste gas outlet end (162), air intlet end (164) and air outlet slit end (163), this air intlet end (164) is connected with the scavenging air box (123) of this diesel engine (12), this air outlet slit end (163) is connected with the inlet end (122) of this diesel engine (12), this exhaust gas inlet end (161) is connected with this exhaust gas denitration pipeline (11) and the in line pipeline of this waste gas (13), this waste gas outlet end (162) is communicated with air.
7. marine exhaust denitrating system as claimed in claim 1, it is characterized in that: in this exhaust gas denitration pipeline (11), be also provided with vaporizer (113) and mixer (114), before this mixer (114) is positioned at this reaction chamber (141), before this vaporizer (113) is positioned at this mixer (114), in this vaporizer (113), be provided with urea liquid spray gun (115).
8. marine exhaust denitrating system as claimed in claim 1, it is characterized in that: in the in line branch road of this waste gas (133), be provided with the 3rd valve (134) and the 4th valve (135), this exhaust gas denitration pipeline (11) is provided with the 5th valve (112), before 3rd valve (134) is positioned at this exhaust steam passage (142), after 4th valve (135) is positioned at this exhaust steam passage (142), after the 5th valve (112) is positioned at this reaction chamber (141).
9. marine exhaust denitrating system as claimed in claim 8, is characterized in that: be provided with induced draught fan (136) between the 4th valve (135) and this exhaust steam passage (142).
10. marine exhaust denitrating system as claimed in claim 8, it is characterized in that: this first valve (111), the second valve (131), the 3rd valve (134) are air-operated bi-directional valve with the 5th valve (112), and the 4th valve (135) is one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520555458.3U CN204961033U (en) | 2015-07-28 | 2015-07-28 | Boats and ships waste gas deNOx systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520555458.3U CN204961033U (en) | 2015-07-28 | 2015-07-28 | Boats and ships waste gas deNOx systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961033U true CN204961033U (en) | 2016-01-13 |
Family
ID=55056104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520555458.3U Withdrawn - After Issue CN204961033U (en) | 2015-07-28 | 2015-07-28 | Boats and ships waste gas deNOx systems |
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| Country | Link |
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| CN (1) | CN204961033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003326A (en) * | 2015-07-28 | 2015-10-28 | 青岛双瑞海洋环境工程股份有限公司 | Marine exhaust denitration system |
| CN113631804A (en) * | 2019-03-07 | 2021-11-09 | 中国电力株式会社 | Combustion system |
-
2015
- 2015-07-28 CN CN201520555458.3U patent/CN204961033U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003326A (en) * | 2015-07-28 | 2015-10-28 | 青岛双瑞海洋环境工程股份有限公司 | Marine exhaust denitration system |
| CN113631804A (en) * | 2019-03-07 | 2021-11-09 | 中国电力株式会社 | Combustion system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160113 Effective date of abandoning: 20171208 |
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| AV01 | Patent right actively abandoned |