CN206592183U - Light passenger train's SCR system urea supply unit - Google Patents
Light passenger train's SCR system urea supply unit Download PDFInfo
- Publication number
- CN206592183U CN206592183U CN201720174914.9U CN201720174914U CN206592183U CN 206592183 U CN206592183 U CN 206592183U CN 201720174914 U CN201720174914 U CN 201720174914U CN 206592183 U CN206592183 U CN 206592183U
- Authority
- CN
- China
- Prior art keywords
- urea
- box
- passenger train
- playpipe
- supply unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
Light passenger train's SCR system urea supply unit, including urea box, urea pump and urea playpipe, urea box be provided with urea box grafting or the filler pipe being connected that is spirally connected, urea box and urea pump are fixed on chassis by bracket；Urea playpipe is externally provided with ribbon heater and asbestos heat-insulation layer.The ribbon heater is wrapped on urea playpipe, and urea box both sides are provided with groove, and the urea box is fixed on bracket by two bands coordinated with groove.The beneficial effects of the utility model are：The utility model is simple in construction, with low cost, effectively meets the installation requirement of the small space in light passenger train's vehicle, while installation is simple and convenient, it is solid and reliable.
Description
Technical field
The utility model belongs to automobile engine post-processing technology lifting field, and the specifically diesel engine of light passenger train state five is arranged
Gas system new type fittingses light passenger train's SCR system urea supply unit.
Background technology
The exhaust gas aftertreatment techniques of Diesel engine are the cores of diesel engine technologies development.SCR（Selectivity post processing
Reduction reaction system）It is one of current diesel exhaust aftertreatment technology, it can effectively remove the NOx in diesel exhaust gas.
By the way that SCR processing systems are combined and Proper Match with co-rail diesel engine, the requirement of more maximum discharge standard can be met.System
Reducing agent is made using urea（Also known as add indigo plant）, under the reduction of catalysts selective, NOx is reduced into nitrogen and water.SCR
System includes：Aqueous solution of urea storage tank, conveying device, metering device, injection apparatus, catalyst converter and temperature and exhaust sensor
Deng.Now common urea tank is mainly made up of casing and urea pump, and casing uses roto casting global formation, and common is black
Nontransparent structure, it is sturdy and durable.Since state four is implemented in the whole nation within 2015, urea tank has become the indispensable configuration of Novel heavy-truck.
As the container of stored urea, urea tank has certain requirement to tank body material and manufacturing process.Heavy truck producer of the current country
The urea tank pattern used is not quite similar:Formed more than tank body using roto casting or Welded, be divided into stand alone type and fuel tank
Integral type, there is the diversified forms such as cuboid, cylinder tank body.Although urea tank is common on truck, because light passenger train and truck
It is far from each other on chassis structure and arrangement space, so rarely having the urea tank that can be used for light passenger train, therefore it is badly in need of being SCR system
Develop urea supply unit.
Utility model content
The purpose of this utility model is to provide the urea supply list that a kind of simple in construction, with low cost, suitable light passenger train uses
Member.
The utility model is achieved by the following technical solution：Light passenger train's SCR system urea supply unit, including urea
Case, urea pump and urea playpipe, urea box are provided with and urea box grafting or the be spirally connected filler pipe being connected, urea box and urea
Pump is fixed on chassis by bracket；Urea playpipe is externally provided with ribbon heater and asbestos heat-insulation layer.
Further：The ribbon heater is wrapped on urea playpipe.
Further：Urea box both sides are provided with groove, and the urea box is fixed on by two bands coordinated with groove
On bracket.
The beneficial effects of the utility model are：The utility model is simple in construction, with low cost, effectively meets in light passenger train
The installation requirement of small space in vehicle, while installation is simple and convenient, it is solid and reliable.
Brief description of the drawings
Fig. 1 is the utility model general structure schematic diagram；
Fig. 2 is sectional view at A in the utility model structure urea playpipe i.e. Fig. 1 in position.
Number explanation in figure：
1. urea box；2. urea pump；3. urea playpipe；4. filler pipe；5 brackets；11 grooves；12 bands；31 electric heating
Band；32 asbestos heat-insulation layers.
Embodiment
Light passenger train's SCR system urea supply unit, including urea box 1, urea pump 2 and urea playpipe 3, urea box is provided with
With urea box grafting or the filler pipe 4 being connected that is spirally connected, urea box and urea pump are fixed on chassis by bracket 5；Urea sprays
Penetrate pipe and be externally provided with ribbon heater 31 and asbestos heat-insulation layer 32, the small volume of ribbon heater, heating is fast, and important work is played in this configuration
With.
Further：The ribbon heater is wrapped on urea playpipe.
Further：Urea box both sides are provided with groove 11, and the urea box is consolidated by two with the band 12 that groove coordinates
It is scheduled on bracket, urea pump is bolted on bracket.This structure ensure that the reliability of installation, while this structure is set
Meter has taken into full account buffet coach base space, and narrow space is arranged between ingenious utilization chassis runner, crossbeam and gusset, utilizes support
Frame fixes urea box and urea pump, and tail-bracket is bolted on vehicle body lower floor crossbeam.
This programme is arranged using narrow space between chassis runner, crossbeam and gusset, develops special urea box, urinates
Plain filler pipe, lid and integrated installation bracket, are integrated with above-mentioned part newly developed and other systematic parts（Enter including urea, return liquid
And playpipe, cooling water circulation pipe, urea level, environment temperature sensor, SCR system part wire harness and interface, DCU etc.）,
And waist hole is devised on bracket, whole urea unit is easily installed on vehicle body lower floor crossbeam.
Urea box, urea pump, bracket, the effect of urea playpipe in the utility model structure is as follows：Urea box is used to store up
Urea liquid is deposited, liquid level and temperature sensor is integrated with.It is internal equipped with ice heat-exchange device is changed, and utilizes diesel engine cooling
The heat progressization ice of water.Coarse filter is housed inside liquid outlet, enters spraying system to prevent the bulky grain more than 0.1mm.Urea
Pump assembly includes metering ejector pump and controller.The effect of pump is with certain pressure transport urea solution.The effect of controller
It is to be communicated by CAN and diesel engine ECU, obtains diesel engine running state information and the various sensors on SCR system
Numerical value, is composed according to the various arteries and veins demarcated in advance, and the urea injection of SCR system in the case of diesel engine real work is calculated in good time
Amount, so that the NOx in diesel engine exhaust is by precise restoration, controller is integrated in urea pump.Due to the suction of pump
Power and automatic-discharging are limited in one's ability, and the inlet of pump is away from tank bottom face vertical range no more than 700mm, and plan range is no more than
10m.Bracket is integrated with urea box and urea pump, and is provided with four mounting holes, is mounted in whole urea supply unit horizontal under vehicle body
Liang Shang.Urea playpipe is responsible for transport urea liquid, has heating function to ensure that urea liquid is entered with liquid at low ambient temperatures and sprays
Mouth and tail gas reaction.
Specific demand of the utility model based on light passenger train chassis narrow space develops the special 10L urea boxes of light passenger train and filling
Pipe, lid and integrated urea pump, the bracket of case, solve light passenger train's diesel SCR after-treatment system urea supply unit arrangement difficult
Topic, has filled up domestic blank, has started the frontier that SCR system is applied to light passenger train.
Reliability of the present utility model can be met by stand vibration test, 70,000 kilometers of durable the examination of road checking no problems
The requirement of quality mileage and the use demand of various road conditions.
Claims (3)
1. light passenger train's SCR system urea supply unit, including urea box, urea pump and urea playpipe, it is characterised in that：Urea box
Be provided with urea box grafting or the filler pipe being connected that is spirally connected, urea box and urea pump are fixed on chassis by bracket；Urine
Plain playpipe is externally provided with ribbon heater and asbestos heat-insulation layer.
2. light passenger train's SCR system urea supply unit as claimed in claim 1, it is characterised in that：The ribbon heater is wrapped in urine
On plain playpipe.
3. light passenger train's SCR system urea supply unit as claimed in claim 1 or 2, it is characterised in that：Urea box both sides are provided with recessed
Groove, the urea box is fixed on bracket by two bands coordinated with groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720174914.9U CN206592183U (en) | 2017-02-27 | 2017-02-27 | Light passenger train's SCR system urea supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720174914.9U CN206592183U (en) | 2017-02-27 | 2017-02-27 | Light passenger train's SCR system urea supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592183U true CN206592183U (en) | 2017-10-27 |
Family
ID=60126789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720174914.9U Expired - Fee Related CN206592183U (en) | 2017-02-27 | 2017-02-27 | Light passenger train's SCR system urea supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111051110A (en) * | 2018-03-19 | 2020-04-21 | 日立建机株式会社 | Construction machine |
-
2017
- 2017-02-27 CN CN201720174914.9U patent/CN206592183U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111051110A (en) * | 2018-03-19 | 2020-04-21 | 日立建机株式会社 | Construction machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |