CN202165145U - Liquid heating system of selective catalytic reduction (SCR) system reducing agent metering and storage device - Google Patents
Liquid heating system of selective catalytic reduction (SCR) system reducing agent metering and storage device Download PDFInfo
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- CN202165145U CN202165145U CN2011202523890U CN201120252389U CN202165145U CN 202165145 U CN202165145 U CN 202165145U CN 2011202523890 U CN2011202523890 U CN 2011202523890U CN 201120252389 U CN201120252389 U CN 201120252389U CN 202165145 U CN202165145 U CN 202165145U
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- liquid
- reducing agent
- runner
- storage device
- heating system
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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
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Abstract
The utility model discloses a liquid heating system of a selective catalytic reduction (SCR) system reducing agent metering and storage device. The reducing agent metering and storage device comprises a metering pump and a liquid storage tank which are integrated. A heat conductive aluminum plate is embedded in the metering pump, the liquid heating system comprises a plurality of sections of cooling liquid circulation runners, a liquid inlet pipe and a liquid outlet pipe, the cooling liquid circulation runners are arranged in the metering pump, and the liquid inlet pipe and the liquid outlet pipe are integrated under the metering pump. Hot cooling liquid flowing through the liquid heating system heats the metering pump and then heats reducing agents in the liquid storage tank through the liquid inlet pipe and the liquid outlet pipe. The liquid heating system of the SCR system reducing agent metering and storage device is good in effect, reasonable and reliable in runner and pipeline arrangement, easy to process, saving in cost and convenient to maintain and replace.
Description
Technical field
The utility model relates to the heating control system of reducing agent in a kind of exhaust gas from diesel vehicle treatment and purification system, relates in particular to the liquid-heating system of a kind of SCR system reducing agent metering and storage device.
Background technique
Existing known; SCR technology (SCR) is the main flow route of motor-vehicle tail-gas post-processing technology; Be about to reducing agent (being called " adding indigo plant " in the industry) through atomizing quantitative injection intake and exhaust pipeline; And through the SCR catalyzer the main harmful gas NOX in the waste gas is changed into the nitrogen G&W and discharge, reaching the purpose of tail gas clean-up, this also is to realize " state IV emission standard " the most general technology path.
The most general reducing agent is 32.5% aqueous solution of urea in the SCR system, and this solution is prone to freeze in the time of-11 ℃, generally solves ice formation issues through the heating to liquid tank, metering pump and pipeline thereof in the existing technology; A kind of is electric heating, and a kind of is liquid heat, and electric heating is to heat through the mode that the energising to power resistor heats up; This mode power consumption is big, and cost is high, the demolition and maintenance difficulty; And the storage battery self-capacity is little at low temperatures, and the self discharge effect is strong, if this environment is launched electric heating down; The too much consumed power of meeting, and the working life of shortening storage battery; Liquid heat mainly is that the engine coolant through heat heats metering pump; Because metering pump is a highi degree of accuracy coupling spare device; The cooling liquid flowing channel difficult arrangement, and heats is undesirable, discloses a kind of metering pump of liquid heat like BOSCH product DENOX2.2 system; This system heats metering pump after through the liquid after the heating liquid tank being heated again; Because the heat of liquid tank internal consumption is bigger, fluid temperature is not high when flowing through metering pump, does not reach the effect of rapid ice.
In addition; The SCR system generally comprises devices such as liquid tank, metering pump, nozzle, and in the existing technology, above-mentioned each modular unit all is separate; So not only to heat metering pump and liquid tank respectively, also can cause the difficult arrangement that causes because of pipeline is more and leak hidden danger etc.
The model utility content
The purpose of the utility model is to overcome the defective of existing technology, and a kind of SCR system reducing agent metering ingenious, that level of integration is high, defrost result is good and liquid-heating system of storage device of designing is provided, and this main structure of system uses plastics, practices thrift cost.
For realizing above-mentioned purpose; The utility model proposes following technological scheme: the liquid-heating system of agent metering of SCR system reducing and storage device; Said metering and storage device comprise integrated metering pump and liquid tank; Said liquid-heating system comprise the plural number section liquid circulation runner that is arranged in the metering pump, with integrated liquid inlet pipe and the drain pipe of said metering pump; Said liquid inlet pipe and drain pipe are communicated with said liquid circulation flow-path tube road respectively, and the thermo-motor cooling liquid is flowed through can flow through downwards behind the metering pump and is arranged on liquid inlet pipe and the drain pipe in the liquid tank, because the reducing agent that storage is stayed in the metering pump is less; Too much consumption of calorie not can not influence normally thawing of reducing agent in the liquid tank when behind the metering pump of flowing through, flowing into liquid tank again.
Said metering pump is a stratiform structure, and said plural number section liquid circulation runner is formed in the layered structure.
Layered structure is embedded in the heat conduction aluminium sheet, and said plural number section liquid circulation runner is positioned at the below of said heat conduction aluminium sheet, and the upper surface of said heat conduction aluminium sheet forms plural number section reducing agent runner.
Said metering pump comprises collet, heat conduction aluminium sheet, mounting plate and lid, and said heat conduction board is embedded between said mounting plate and the said collet, and said reducing agent runner is formed between said mounting plate and the said heat conduction board, and said lid is installed on the said mounting plate.
Said liquid circulation runner comprises feed liquor runner and fluid runner, and said feed liquor runner is communicated with the liquid inlet pipe that is arranged on said metering pump below, and said fluid runner is communicated with the drain pipe that is arranged on said metering pump below.
Said liquid-heating system also comprises liquid inlet joint and the fluid joint that is arranged at collet one side, and said liquid inlet joint and fluid joint are connected with feed liquor runner and fluid runner respectively.
Said liquid circulation runner forms tortuous trend in said collet in-plane, make it strengthen the heating area to the heat conduction aluminium sheet.
Said metering pump also comprises filter, diaphragm pump, metering valve and the mixing chamber that is arranged on the mounting plate, and said at least diaphragm pump, metering valve and mixing chamber are arranged in the seal space of said lid and the formation of said mounting plate.
Said mounting plate and said collet are by the engineering plastics moulding.
Said liquid circulation runner is set to semi-circular cross-section or flat structure or trapezium structure, increases the area of contact of liquid circulation runner and said heat conduction aluminium sheet, and heats is obvious.
Compared with prior art, the liquid-heating system of agent metering of the utility model SCR system reducing and storage device has following advantage:
The first, the utility model metering pump is a stratiform structure, and collet and mounting plate all are the engineering plastics moulding, and having only Embedded heat conduction aluminium sheet is metallic material, is prone to processing, and is in light weight, cost is low.
The second, the liquid circulation runner flows in embedded heat conduction aluminium sheet bottom, can rapid heating to the reducing agent in the heat conduction aluminium sheet upper surface reducing agent runner.
Three,, the design of this stratiform structure flows through liquid cooled heat liquid tank to be heated behind the metering pump again, and thermal energy consumption is few, heats is obvious, and the integrated form design has reduced the reducing agent that intermediate duct too much causes and reveals hidden danger.
When four, needing demolition and maintenance perhaps reducing agent runner in the metering pump to be cleaned, only need mounting plate in the metering pump and lid one be unloaded, need not whole metering pump and liquid inlet pipe, drain pipe are disassembled, safeguard, change conveniently.
Description of drawings
Fig. 1 is that metering pump is installed in the three-dimensional view on the liquid tank in the utility model SCR system;
Fig. 2 is the three-dimensional exploded view of the utility model;
Fig. 3 is the three-dimensional exploded view of the utility model collet and heat conduction board;
Fig. 4 is the plan view that the utility model collet and heat conduction board fit together;
Fig. 5 a, 5b, 5c are the structural representations of the concrete mode of execution in the utility model coolant circulates road.
Embodiment
To combine the accompanying drawing of the utility model below, the technological scheme in the utility model preferred embodiment will be carried out clear, complete description.
As shown in Figure 1; The SCR system reducing agent metering that the utility model disclosed and the liquid-heating system of storage device; Be used at low temperatures metering and storage device being heated; Said metering and storage device comprise metering pump 1 and liquid tank 2, and said metering pump and liquid tank are integrated, and the liquid cooled heat in the liquid-heating system of flowing through heats the reducing agent in the liquid tank after to the metering pump heating again.
Referring to Fig. 2; Said metering pump 1 is a stratiform structure; Be followed successively by collet 11, heat conduction board 12, mounting plate 13 and lid 14 from bottom to top, 14 of said mounting plate 13 and lids are connected said heat conduction aluminium sheet 12 embedded being arranged in the said collet 11 through fastening pieces such as several bolts with collet 11; Said heat conduction aluminium sheet 12 upper surfaces, collet 11 upper surfaces and mounting plate 13 levels cooperate; Said lid 14 is installed on the said mounting plate 13, and and 13 formation of mounting plate, one seal space, diaphragm pump 3, metering valve 4 and the mixing chamber 5 in the metering pump is arranged in the seal space of said mounting plate 13 and 14 formation of said lid at least.
In conjunction with shown in Figure 3; Specifically; Form a recess 15 in the said collet 11, said heat conduction aluminium sheet 12 is arranged in the said recess 15 fully ordinatedly, is formed with plural number section groove in the said recess 15; This plural number section groove and said heat conduction aluminium sheet 12 lower surfaces form liquid circulation runner 6; Said heat conduction aluminium sheet 12 upper surfaces also form plural number section groove, and the mounting plate of heat conduction aluminium sheet upper surface groove and heat conduction aluminium sheet upside forms plural number section reducing agent runner 8, and the reducing agent in the said metering pump is carried through reducing agent runner 8 connected sums.
Said liquid-heating system comprises the liquid circulation runner 6 that is arranged in the metering pump 1 and is arranged on the metering pump below and runs through the liquid inlet pipe 66 and drain pipe 67 of said collet 11; Said liquid inlet pipe 66 is communicated with said liquid circulation runner 6 respectively with drain pipe 67; And extend in the said liquid tank 2; Said liquid circulation runner 6, liquid inlet pipe 66 and drain pipe 67 form a cooling flow pipeline; Said plural number section liquid circulation runner 6 heats through heat conduction aluminium sheet 12 being heated the reducing agent runner of realizing being formed on the heat conduction aluminium sheet 12 8, and the liquid cooled heat liquid inlet pipe 66 of flowing through can heat the reducing agents in the liquid tank 2 during with drain pipe 67 simultaneously.
Show in conjunction with Fig. 3, Fig. 4; Said liquid circulation runner 6 comprises feed liquor runner 63 and fluid runner 65; Said feed liquor runner 63 is communicated with liquid inlet pipe 66; Said fluid runner 65 is communicated with drain pipe 67, and said liquid inlet pipe 66 is communicated with through heat exchanger 68 in the bottom with drain pipe 67, and said feed liquor runner 63 and fluid runner 65 are arranged with downwards afterwards and formed space between the lower surface of the heat conduction board 12 of corresponding position for the upper surface of collet 11.
Preferably; Also be provided with liquid inlet joint 61 and fluid joint 62 on the said collet sidewall; Said liquid inlet joint 61 is communicated with feed liquor runner 63, and said fluid joint 62 is communicated with said fluid runner 65, and said liquid inlet joint 61 and fluid joint 62 are used separately as the entering and the output of liquid cooled heat.
Sum up above the description; Said liquid-heating system comprises liquid inlet joint 61, feed liquor runner 63, liquid inlet pipe 66, drain pipe 67, fluid runner 65 and the fluid joint 62 that is communicated with successively; Said liquid inlet pipe 66 extends to form downwards to liquid tank 2 from collet 11 with drain pipe 67; Liquid cooled heat in the said liquid-heating system flows into back, flow through feed liquor runner 63, liquid inlet pipe 66, drain pipe 67, fluid runner 65 and fluid joint 62 successively from liquid inlet joint 61; This design can make liquid cooled heat flow through liquid tank to be heated behind the metering pump again; Because the reducing agent that storage is stayed in the metering pump is few, thermal energy consumption is few, can not influence normally thawing to reducing agent in the liquid tank when flowing through metering pump.
Preferably; Said feed liquor runner 63 is to collet 11 tortuous extension of end formation away from liquid inlet joint 61 and fluid joint 62; So design can prolong the liquid cooled heat trend in the feed liquor runner, and the reducing agent in the mixing chamber that commute freezes, filtering cavity, the pump chamber etc. heats.
Preferably; Collet 11, mounting plate 13 and lid 14 in the said metering pump 1 have only heat conduction aluminium sheet 12 by metal material moulding by the engineering plastics moulding, both improved heats; Alleviate the overall weight of metering pump again, also reduced difficulty of processing and cost simultaneously.
Preferably, shown in Fig. 5 a, said feed liquor runner 63 and fluid runner 65 are set to the structure of semi-circular cross-section, with the liquid cooled heat in increase feed liquor runner 63 and the fluid runner 65 and the area of contact of heat conduction aluminium sheet, thereby improve heats.
In other embodiments of the utility model, shown in Fig. 5 b and Fig. 5 c, said feed liquor runner 63 and fluid runner 65 also can be set to trapezium structure or flat structure or other all help the structure of heat conduction.
More preferably; As shown in Figure 2; Be arranged on the helicoidal structure of the heat exchanger 68 of liquid inlet pipe 66 and joint, drain pipe 67 bottom for the increase heat exchange area, and on the outer surface on liquid inlet pipe 66 tops, wrap up collet 69, the setting of collet 69 makes the liquid cooled heat after the heating when flowing through liquid inlet pipe top, avoid losing too much heat; But at first melt the freezing of liquid tank bottom, be convenient to pick-up tube 70 and carry out the reducing agent suction.
In this specific embodiment; 13 sealings are connected said lid 14 with mounting plate; Only need the Bolt dismantling between mounting plate 13 and the collet 11 can be realized separating in maintenance or when cleaning, safeguard or clean, avoided whole metering pump or/and liquid-heating system disassembles.
Technology contents of the utility model and technical characteristics have disclosed as above; Yet those of ordinary skill in the art still maybe be based on the teaching of the utility model and announcements and are done all replacement and modifications that does not deviate from the utility model spirit; Therefore; The utility model protection domain should be not limited to the content that embodiment discloses, and should comprise various replacement and the modifications that do not deviate from the utility model, and is contained by the present patent application claim.
Claims (10)
1.SCR the liquid-heating system of system reducing agent metering and storage device; It is characterized in that: said reductant metering and storage device comprise integrated metering pump and liquid tank; Said liquid-heating system comprise the plural number section liquid circulation runner that is arranged in the metering pump, with integrated liquid inlet pipe and the drain pipe of metering pump, said liquid inlet pipe and drain pipe are communicated with said liquid circulation flow-path tube road respectively.
2. the liquid-heating system of SCR system reducing agent metering according to claim 1 and storage device is characterized in that: said metering pump is a stratiform structure, and said plural number section liquid circulation runner is formed in the layered structure.
3. the liquid-heating system of SCR system reducing agent metering according to claim 2 and storage device; It is characterized in that: layered structure is embedded in the heat conduction aluminium sheet; Said plural number section liquid circulation runner is positioned at the below of said heat conduction aluminium sheet, and the upper surface of said heat conduction aluminium sheet forms plural number section reducing agent runner.
4. the liquid-heating system of SCR system reducing agent metering according to claim 3 and storage device; It is characterized in that: said metering pump comprises collet, heat conduction aluminium sheet, mounting plate and lid; Said heat conduction board is embedded between said mounting plate and the said collet; Said reducing agent runner is formed between said mounting plate and the said heat conduction board, and said lid is installed on the said mounting plate.
5. according to the liquid-heating system of claim 1 or 4 described SCR system reducing agent meterings and storage device; It is characterized in that: said liquid circulation runner comprises feed liquor runner and fluid runner; Said feed liquor runner is communicated with said liquid inlet pipe, and said fluid runner is communicated with said drain pipe.
6. the liquid-heating system of SCR system reducing agent metering according to claim 5 and storage device; It is characterized in that: said liquid-heating system also comprises liquid inlet joint and the fluid joint that is arranged at collet one side, and said liquid inlet joint and fluid joint are connected with feed liquor runner and fluid runner respectively.
7. the liquid-heating system of SCR system reducing agent metering according to claim 5 and storage device is characterized in that: said feed liquor runner is tortuous trend in said collet in-plane, makes it strengthen the heating area to the heat conduction aluminium sheet.
8. the liquid-heating system of SCR system reducing agent metering according to claim 4 and storage device; It is characterized in that: said metering pump also comprises filter, diaphragm pump, metering valve and the mixing chamber that is arranged on the mounting plate, and said at least diaphragm pump, metering valve and mixing chamber are arranged in the seal space of said lid and the formation of said mounting plate.
9. the SCR system reducing agent metering of stating according to claim 4 and the liquid-heating system of storage device, it is characterized in that: said mounting plate and said collet are by the engineering plastics moulding.
10. the liquid-heating system of SCR system reducing agent metering according to claim 1 and storage device is characterized in that: said liquid circulation runner is set to semi-circular cross-section or flat structure or trapezium structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202523890U CN202165145U (en) | 2011-07-18 | 2011-07-18 | Liquid heating system of selective catalytic reduction (SCR) system reducing agent metering and storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202523890U CN202165145U (en) | 2011-07-18 | 2011-07-18 | Liquid heating system of selective catalytic reduction (SCR) system reducing agent metering and storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165145U true CN202165145U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202523890U Withdrawn - After Issue CN202165145U (en) | 2011-07-18 | 2011-07-18 | Liquid heating system of selective catalytic reduction (SCR) system reducing agent metering and storage device |
Country Status (1)
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|---|---|
| CN (1) | CN202165145U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979602A (en) * | 2011-07-18 | 2013-03-20 | 苏州派格丽减排系统有限公司 | Liquid heating system of reductive agent metering and storage device in selective catalytic reduction (SCR) system |
| CN105464764A (en) * | 2015-12-11 | 2016-04-06 | 潍柴动力股份有限公司 | Mixer used for exhaust facility and SCR system |
| CN105597850A (en) * | 2015-10-14 | 2016-05-25 | 华中科技大学 | Electric heating objective table for laboratories |
-
2011
- 2011-07-18 CN CN2011202523890U patent/CN202165145U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979602A (en) * | 2011-07-18 | 2013-03-20 | 苏州派格丽减排系统有限公司 | Liquid heating system of reductive agent metering and storage device in selective catalytic reduction (SCR) system |
| CN102979602B (en) * | 2011-07-18 | 2015-05-06 | 苏州派格丽减排系统有限公司 | Liquid heating system of reductive agent metering and storage device in selective catalytic reduction (SCR) system |
| CN105597850A (en) * | 2015-10-14 | 2016-05-25 | 华中科技大学 | Electric heating objective table for laboratories |
| CN105464764A (en) * | 2015-12-11 | 2016-04-06 | 潍柴动力股份有限公司 | Mixer used for exhaust facility and SCR system |
| CN105464764B (en) * | 2015-12-11 | 2018-04-03 | 潍柴动力股份有限公司 | Blender and SCR system for exhaust facility |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215211, No. 666 Fen Lu, Fen Hu Town, Wujiang City, Jiangsu, Suzhou Patentee after: Suzhou PowerGreen Emission Solution System Co., Ltd. Address before: 215211 Jiangsu city of Suzhou province Wujiang city FENHU Economic Development Zone, the community Fen Road No. 666 Patentee before: Suzhou PowerGreen Emission Solution System Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120314 Effective date of abandoning: 20150506 |
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| RGAV | Abandon patent right to avoid regrant |