CN108625952A - Carrier block and selective catalytic reduction system operating for selective catalytic reduction system operating - Google Patents
Carrier block and selective catalytic reduction system operating for selective catalytic reduction system operating Download PDFInfo
- Publication number
- CN108625952A CN108625952A CN201810223593.6A CN201810223593A CN108625952A CN 108625952 A CN108625952 A CN 108625952A CN 201810223593 A CN201810223593 A CN 201810223593A CN 108625952 A CN108625952 A CN 108625952A
- Authority
- CN
- China
- Prior art keywords
- carrier block
- heater
- container
- line
- catalytic reduction
- 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.)
- Pending
Links
- 238000010531 catalytic reduction reaction Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 238000010257 thawing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1433—Pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1486—Means to prevent the substance from freezing
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
This disclosure relates to a kind of carrier blocks (200) being used for selective catalytic reduction system operating (100).Carrier block (200) includes heater (201), is suitable for heating the working media from container (300).Carrier block (200) further includes that there are two at least one line heaters (202) of end (202a, 202b) for tool.Two end (202a of line heater (202), first end in 202b) is connected to holding element (203), the second end in two ends (202a, 202b) of line heater (202) is connected to holding element (203).Present disclosure also discloses a kind of supply module (400) and a kind of selective catalytic reduction system operating (100).
Description
Technical field
The carrier block (carrier assembly) that the present invention relates to a kind of for selective catalytic reduction system operating.
Background technology
Selective catalytic reduction system operating be it is a kind of be used in diesel engine, by using aqueous solution of urea and exhaust gas it
Between chemical reaction reduce the technology of NOx emission.The hydraulic circuit of selective catalytic reduction system operating is by storage container, pump, mistake
Filter, valve, hose and injection apparatus and as working media aqueous solution of urea form.In general, work is situated between by supply module
Matter is pumped to dosage module.Before pumping work medium, working media is filtered, to ensure clean working media quilt
It is supplied to dosage module.Main filter is permanently fixed or is welded on carrier block, and the carrier block keeps horizon sensor.
Carrier block is assemblied on container.Under subzero temperature condition, working media freezes, thus heater is needed to carry out heating work
Medium, and ensure there is working media to be supplied to supply module.
Invention content
The method that patent application US 8479497B2 explain operation SCR converters.The present invention provides a kind of operation use
In the method for the SCR catalytic converter of engine exhaust gas post-processing, wherein provide the container for reducing agent with reducing agent and reduction
Agent dosing mechanism.Container for reducing agent includes at least one reservoir heater for having ptc characteristics.When reducing agent freezes, obtain
The variable of heater current is characterized to detect the cavity in container for reducing agent.The one of the variable of acquired characterization heater current
Deviation between a or multiple values and predetermined reference value may indicate that the presence of cavity, the predetermined reference value represent no cavity
Container for reducing agent the case where.
Description of the drawings
Exemplary embodiment of the present invention is generally explained below with regard to attached drawing.In the accompanying drawings：
Fig. 1 shows the view of selective catalytic reduction system operating 100 according to an embodiment of the invention；
Fig. 2 shows the views of the carrier block 200 according to an embodiment of the invention with cavity 301；
Fig. 3 shows another view of carrier block 200 according to another embodiment of the present invention.
Specific implementation mode
Fig. 1 shows the carrier block 200 for selective catalytic reduction system operating 100.Carrier block 200 includes heater
201, and heater 201 is suitable for heating the working media in container 300.Carrier block 200 further include tool there are two end 202a,
At least one line heater 202 of 202b.First end in two ends 202a, 202b of line heater 202 is suitable for from load
Busbar in sending component 200 receives electric power, and the second end in two ends 202a, 202b of line heater 202 is connected to
Holding element 203.
According to one embodiment of the disclosure, holding element 203 is float element.For example, holding element 203 is ball member
Part, on the surface that the ball element floats on working media when container 300 is filled.Two end 202a of line heater 202,
An end in 202b is connected to holding element 203, and another in two ends 202a, 202b of line heater 202
End is connected to the busbar of carrier block 200, to obtain the electric power for making line heater 202 operate.
According to one embodiment of the disclosure, holding element 203 is spring element.Spring element is connected to container from one end
300 top, and the other end is connected to line heater 202.Therefore, line heater 202 is hung from one end of spring element, and bullet
The other end of spring element is connected to top or the ceiling of container 300.
According to one embodiment of the disclosure, at least one line heater 202 includes being connected to holding element 203 from one end
At least one line.Line heater 202 includes at least one line, which is connected to holding element 203 at portion at one end, and the
Two ends are connected to the busbar of carrier block 200.In the case of figure 3, line heater 202 can have the heating of multiple lines
Device 302a, the first end of the multiple line heater 302a is all connected to a holding element 203a, and the second end connects
A busbar of carrier block 200 is connected to receive electric power.
Supply module 400 for selective catalytic reduction system operating 100 includes 401 He of pump for being assembled to carrier block 200
Carrier block 200 including heater 201.Heater 201 is suitable for working media of the heating from container 300.In supply module
In 400, carrier block 200 further includes that there are two at least one line heaters 202 of end 202a, 202b for tool.Line heater 202
Two ends 202a, 202b in first end be suitable for receiving electric power, and line heater from the busbar in carrier block 200
The second end in 202 two ends 202a, 202b is connected to holding element 203.
Line heater 202 is always arranged in container 300：So that in two ends 202a, 202b of line heater 202
An end be connected to holding element 203, and the other end connection in two ends 202a, 202b of line heater 202
To carrier block 200 busbar to receive electric power.
Selective catalytic reduction system operating 100 includes the container 300, supply module 400, carrier block for working media
200 and dosage module 500.Container 300 has for working media to be received to the entrance in container 300.Supply module 400 fills
It fits in container 300.Supply module 400 includes carrier block 200 and the pump 401 for being assembled to carrier block 200.Carrier block
200 include heater 201.Heater 201 is suitable for working media of the heating from container 300, and dosage module 500 is suitable for from confession
Module 400 is answered to receive working media.Carrier block 200 includes that there are two at least one line heaters of end 202a, 202b for tool
202, the first end in two ends 202a, 202b of line heater 202 is suitable for receiving electricity from the busbar of carrier block 200
Power, and the second end in two ends 202a, 202b of line heater is connected to holding element 203.
The main purpose of the disclosure described above be in order under negative temperature or zubzero temperature, when there is no working media
It can be used for course of defrosting and refill working media in container when the working media in container 300 is in frozen state.
Referring to Fig.1,2 and 3, under the conditions of negative temperature, when working media 303 freezes, primary heater 201 starts.Primary heater 201 is molten
Thaw the working media 303 of knot, and the process is referred to as course of defrosting.Primary heater 201 can solve in shorter drive cycle
Freeze the working media 303 of certain volume, and the working media melted is extracted by supply module 400 and is injected to dosage module 500.
It, always can there are spaces when filling working media in general, in container 300.When temperature drops to such as -7 degrees Celsius or less,
Working media 303 can freeze, and as working media 303 freezes, and the volume of working media can expand.In order to accommodate the work freezed
Make medium 303, there are spaces in container 300 for meeting.The work that primary heater 201 on carrier block 200 is used to freeze
Medium 303.Since the position of primary heater 201 is fixed, thus the defrosting ability of negative temperature condition lower heater 201 not
It is enough to melt the working media 303 of whole freezings in container 300.Once the working media to thaw is pumped out to delivery pipe
In, cavity 301 will be formed and can not be refilled, reason is 303 surrounding cavity 301 of the working media freezed and makes
Working media 303 can not reach cavity 301.With line heater 202, cavity 301, will start once being formed
Line heater 202, and line heater 202 starts to melt the working media around line heater 202.Due to gravity, thawing
Working media 303 can be downwardly towards cavity 301, and form the channel 302 from holding element 203 to cavity 301.It can fill out again at this time
Working media 303 is filled, because when refilling, working media 303 will flow through the channel around line heater 202 302 simultaneously
Reach cavity 301.Once cavity 301 is filled, catalysts selective also original system 100 is just ready can be made again
With.
It is to be understood that the embodiment in middle explaination discussed in detail above is merely illustrative, and it is not intended to limit this hair
Bright range.The scope of the present invention is limited solely by the scope of the following claims.Many modifications and changes in above-described embodiment are all
It is conceivable, and fall within the scope of the present invention.
Claims (6)
1. one kind being used for the carrier block (200) of selective catalytic reduction system operating (100), the carrier block (200) includes：
Heater (201) is suitable for heating the working media of container (300)；
It is characterized in that：
The carrier block (200) includes that there are two at least one line heaters (202) of end (202a, 202b) for tool；
First end in described two ends (202a, 202b) of the line heater (202) is suitable for from the carrier block
(200) busbar in receives electric power；And
The second end in described two ends (202a, 202b) of the line heater (202) is connected to holding element
(203)。
2. carrier block (200) according to claim 1, wherein the holding element (203) is float element.
3. carrier block (200) according to claim 1, wherein the holding element (203) is spring element.
4. carrier block (200) according to claim 1, wherein at least one line heater (202) is included in one
A end is connected at least one line of the holding element (203).
5. one kind being used for the supply module (400) of selective catalytic reduction system operating (100), the supply module (400) includes：
The pump (401) being assembled on carrier block (200)；With
Carrier block (200) including heater (201), wherein the heater (201) is suitable for heating the work of container (300)
Make medium；
It is characterized in that,
The carrier block (200) includes that there are two at least one line heaters (202) of end (202a, 202b) for tool；
First end in described two ends (202a, 202b) of the line heater (202) is suitable for from the carrier block
(200) busbar in receives electric power；And
The second end in described two ends (202a, 202b) of the line heater (202) is connected to holding element
(203)。
6. a kind of selective catalytic reduction system operating (100) comprising：
Container (300) for working media, wherein the container (300) has for entering institute for the working media
State the input port of container (300)；
The supply module (400) being assemblied in the container (300), wherein the supply module (400) includes carrier block
(200) and the pump (401) that is assemblied on the carrier block (200)；
The carrier block (200) includes heater (201), and the work that the heater (201) is suitable for heating container (300) is situated between
Matter；With
Dosage module (500), wherein the dosage module (500) is suitable for receiving the work from the supply module (400) and be situated between
Matter；
It is characterized in that,
The carrier block (200) includes that there are two at least one line heaters (202) of end (202a, 202b) for tool；
First end in described two ends (202a, 202b) of the line heater (202) is suitable for from the carrier block
(200) busbar in receives electric power；Also,
The second end in described two ends (202a, 202b) of the line heater (202) is connected to holding element
(203)。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN201741009533 | 2017-03-20 | ||
| IN201741009533 | 2017-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108625952A true CN108625952A (en) | 2018-10-09 |
Family
ID=63372386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810223593.6A Pending CN108625952A (en) | 2017-03-20 | 2018-03-19 | Carrier block and selective catalytic reduction system operating for selective catalytic reduction system operating |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108625952A (en) |
| DE (1) | DE102018202472A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305933A (en) * | 2018-12-12 | 2020-06-19 | 潍柴动力股份有限公司 | Urea injection device, urea tank for heating urea and heating method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713184A (en) * | 2010-01-13 | 2012-10-03 | 排放技术有限公司 | Device having a tank and a delivery unit for reductants |
| US20130192204A1 (en) * | 2010-03-05 | 2013-08-01 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Device for providing liquid reducing agent, method for thawing frozen reducing agent and motor vehicle having the device |
| CN103237965A (en) * | 2010-12-02 | 2013-08-07 | 罗伯特·博世有限公司 | Device for supplying a reducing agent to an exhaust-gas aftertreatment system |
| DE102016214427A1 (en) * | 2015-09-29 | 2017-03-30 | Robert Bosch Engineering and Business Solutions Ltd. | A heating arrangement for a tank of a selective catalytic reduction system and a related tank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112013002497T5 (en) | 2012-06-07 | 2015-01-29 | Cummins, Inc. | Method of causing maintenance of an SCR aftertreatment system |
-
2018
- 2018-02-19 DE DE102018202472.3A patent/DE102018202472A1/en active Pending
- 2018-03-19 CN CN201810223593.6A patent/CN108625952A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713184A (en) * | 2010-01-13 | 2012-10-03 | 排放技术有限公司 | Device having a tank and a delivery unit for reductants |
| US20130192204A1 (en) * | 2010-03-05 | 2013-08-01 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Device for providing liquid reducing agent, method for thawing frozen reducing agent and motor vehicle having the device |
| CN103237965A (en) * | 2010-12-02 | 2013-08-07 | 罗伯特·博世有限公司 | Device for supplying a reducing agent to an exhaust-gas aftertreatment system |
| DE102016214427A1 (en) * | 2015-09-29 | 2017-03-30 | Robert Bosch Engineering and Business Solutions Ltd. | A heating arrangement for a tank of a selective catalytic reduction system and a related tank |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305933A (en) * | 2018-12-12 | 2020-06-19 | 潍柴动力股份有限公司 | Urea injection device, urea tank for heating urea and heating method |
| CN111305933B (en) * | 2018-12-12 | 2022-07-12 | 潍柴动力股份有限公司 | Urea injection device, urea tank for heating urea and heating method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018202472A1 (en) | 2018-09-20 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181009 |
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