CN202991196U - Electric heating metal hose assembly capable of removing urea crystallization - Google Patents
Electric heating metal hose assembly capable of removing urea crystallization Download PDFInfo
- Publication number
- CN202991196U CN202991196U CN2012207222413U CN201220722241U CN202991196U CN 202991196 U CN202991196 U CN 202991196U CN 2012207222413 U CN2012207222413 U CN 2012207222413U CN 201220722241 U CN201220722241 U CN 201220722241U CN 202991196 U CN202991196 U CN 202991196U
- Authority
- CN
- China
- Prior art keywords
- electric heating
- metal hose
- hose assembly
- metallic hose
- urea crystals
- 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
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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
- 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
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to an electric heating metal hose assembly capable of removing urea crystallization. The electric heating metal hose assembly comprises a metal hose, a support frame, an electric heating tube and a harness and is characterized in that the support frame is fixedly connected to an air inlet end of the metal hose, and the electric heating tube is fixed on the support frame and connected with an overall vehicle harness or an external power supply through the harness. By the electric heating metal hose assembly which is fast and convenient in removing urea crystallization, the risk of urea crystallization can be lowered, and urea crystallization formed in an exhaust system can be removed.
Description
Technical field
The utility model relates to a kind of electric heating metallic hose assembly of removing urea crystals, is particularly useful for the abominable situation that engine exhaust temperature is low, the Environmental Conditions temperature is low.
Background technique
The Abgasgesetz of state's IV, state's V is about to implement, and as a kind of technology path that can satisfy Abgasgesetz, selective catalysis reduction (SCR) after-treatment system is adopted by domestic automaker.This system be the ammonia that produces with aqueous solution of urea hydrolysis as reducing agent, utilize the catalysis of SCR catalyzer to reduce oxynitrides in exhaust, to satisfy relevant laws and regulations requirement.If yet the atomizing of aqueous solution of urea and hydrolysis are not exclusively, just might form urea crystals in gas exhaust piping or preprocessor.Be combined with tube wall closely due to crystal, the reason such as the operating space is little is difficult to remove, and can cause the backpressure rising of vent systems after urea crystals, can have a strong impact on engine performance.Due to the generation of urea crystals, also can cause the growing amount of reducing agent ammonia inadequate, motor nitrogen oxygen is discharged pollutants exceed standard.
How to avoid urea crystals to produce, or after urea crystals produces, how to remove fast urea crystals, after will being the Abgasgesetz enforcement of state's IV, state's V, the very severe problem that each automaker will face.
Summary of the invention
The purpose of this utility model is to provide a kind of electric heating metallic hose assembly of removing urea crystals, it is a kind of device of realizing reducing the urea crystals risk, removing established urea crystals in vent systems, has the advantages that to remove fast, easily urea crystals.
The technical solution of the utility model is achieved in that a kind of electric heating metallic hose assembly of removing urea crystals, by metallic hose, supporting frame, electric heating tube, wire harness totally four parts form, it is characterized in that: the inlet end at metallic hose is fixedly connected with supporting frame, fixing electric heating tube on supporting frame, electric heating tube is connected with the car load wire harness or is connected with ABAP Adapter by wire harness.
Good effect of the present utility model is after aqueous solution of urea is ejected in engine exhaust, in the situation that some delivery temperature is lower, ambient temperature is lower, the droplet of aqueous solution of urea atomizing contacts with the tube wall of outlet pipe, because tube wall temperature is lower, cause the generation of wet wall phenomenon, will produce urea crystals, this is the main cause that urea crystals forms.If raising delivery temperature, thereby the tube wall temperature of raising outlet pipe reduce wet wall phenomenon odds, will significantly reduce the risk of urea crystals.For established urea crystals, its main component is urea, cyanuric acid, melamine etc., and they all can melt, further divide and take off 500 ℃ of left and right; This device is to utilize above principle, improve delivery temperature by increasing Electric heating appliance in the metallic hose before the urea nozzle of vent systems, reach the risk that reduces urea crystals and the purpose of removing established urea crystals, the device of established urea crystals in the risk of its reduction urea crystals, removal vent systems.
Description of drawings
Fig. 1 is the outline drawing that the metallic hose assembly is.
Fig. 2 is the internal structure schematic diagram of metallic hose assembly.
Fig. 3 is the assembling schematic diagram of metallic hose assembly.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further: as shown in Fig. 1-2, a kind of electric heating metallic hose assembly of removing urea crystals, by metallic hose, supporting frame, electric heating tube, wire harness totally four parts form, it is characterized in that: the inlet end at metallic hose 1 is fixedly connected with supporting frame 2, fixing electric heating tube 3 on supporting frame 2, electric heating tube 3 is connected with the car load wire harness or is connected with ABAP Adapter by wire harness 4.
As shown in Figure 3, in vent systems, gas exhaust piping changes with different automobile types, and due to the needs of arranging, the straightway of gas exhaust piping is shorter again, the electric heating tube that very difficult layout is long.And metallic hose is as vibration isolation element in vent systems, and its straightway is longer, and versatility is better, is convenient to arrange long electric heating tube, realizes the purpose of thermal exhaust.In addition, because the outlet pipe inside after urea-spray system requirements urea nozzle is smooth, so urea nozzle is all after being arranged in metallic hose 1, urea crystals is also after occurring in metallic hose 1, therefore at the interior layout electric heating tube 3 of metallic hose 1, improve delivery temperature and can reach good effect.
As shown in Figure 1, the device of realizing reducing the urea crystals risk, removing the urea crystals in vent systems of the present utility model, profile, Connecting format and former car metallic hose are identical, increased supporting frame 2 in the inside of metallic hose 1, be used for fixing electric heating tube 3 and come thermal exhaust, connect or ABAP Adapter by wire harness 4 wire harness relevant to car load.
As shown in Figure 2, electric heating tube 3 is connected with the car load wire harness or is connected with ABAP Adapter by wire harness 4, utilizes external fixed power source or car load storage battery that electric energy is provided, and adopting electric heating tube is heat energy with electric energy conversion, improves delivery temperature.
The utility model has two kinds of usage mode:
The one, be assemblied on car load as the vibration isolation element of vent systems, according to certain control strategy, in the situation that delivery temperature is lower or ambient temperature is lower, exhaust is heated, reduce the risk of urea crystals;
The 2nd, as the instrument of after sales service, in the situation that urea crystals appears in car load, pull down former car metallic hose, change this electric heating metallic hose, ABAP Adapter is to exhaust heating a period of time, after removing established urea crystals, then change former car metallic hose, the user can continue to use.
The device of realizing reducing the urea crystals risk, removing the urea crystals in vent systems of the present utility model increases electric heating tube in metallic hose, can improve delivery temperature in specific harsh situation, greatly reduces the risk of urea crystals; As the after sales service instrument, can remove fast urea crystals, avoid changing preprocessor, reduced maintenance cost; Identical with former car metallic hose profile and Connecting format, can exchange, arrangement need not change, applicable to different automobile types, can reduce easily and efficiently the urea crystals risk, remove the formation urea crystals in vent systems, have the very strong market competitiveness.
Claims (1)
1. the electric heating metallic hose assembly that can remove urea crystals, by metallic hose, supporting frame, electric heating tube, wire harness totally four parts form, it is characterized in that: the inlet end at metallic hose is fixedly connected with supporting frame, fixing electric heating tube on supporting frame, electric heating tube is connected with the car load wire harness or is connected with ABAP Adapter by wire harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207222413U CN202991196U (en) | 2012-12-25 | 2012-12-25 | Electric heating metal hose assembly capable of removing urea crystallization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207222413U CN202991196U (en) | 2012-12-25 | 2012-12-25 | Electric heating metal hose assembly capable of removing urea crystallization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991196U true CN202991196U (en) | 2013-06-12 |
Family
ID=48562385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207222413U Expired - Fee Related CN202991196U (en) | 2012-12-25 | 2012-12-25 | Electric heating metal hose assembly capable of removing urea crystallization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729990A (en) * | 2017-04-20 | 2018-11-02 | 北华航天工业学院 | A kind of diesel engine after treatment heating and mixing device of anti-urea crystals |
-
2012
- 2012-12-25 CN CN2012207222413U patent/CN202991196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729990A (en) * | 2017-04-20 | 2018-11-02 | 北华航天工业学院 | A kind of diesel engine after treatment heating and mixing device of anti-urea crystals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20191225 |