CN115450956A - Turbo charger shell of giving vent to anger with urea sprays mixing arrangement - Google Patents

Turbo charger shell of giving vent to anger with urea sprays mixing arrangement Download PDF

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Publication number
CN115450956A
CN115450956A CN202211236044.5A CN202211236044A CN115450956A CN 115450956 A CN115450956 A CN 115450956A CN 202211236044 A CN202211236044 A CN 202211236044A CN 115450956 A CN115450956 A CN 115450956A
Authority
CN
China
Prior art keywords
turbocharger
mixer
urea
air outlet
shell
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
Application number
CN202211236044.5A
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Chinese (zh)
Inventor
班海波
王大萌
丰亮宽
曹赫伦
黄佳伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Dalian Institute Co Ltd
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CRRC Dalian Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CRRC Dalian Institute Co Ltd filed Critical CRRC Dalian Institute Co Ltd
Priority to CN202211236044.5A priority Critical patent/CN115450956A/en
Publication of CN115450956A publication Critical patent/CN115450956A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid 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
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The invention discloses a turbocharger air outlet shell with a urea injection mixing device, which comprises a turbocharger air outlet shell body; the urea injection device is arranged at the air outlet end of the air outlet shell of the turbocharger; and the urea mixing structure is arranged at the air outlet end and comprises a mixer shaft, a mixer bearing and a mixer impeller, the mixer shaft is arranged at the air outlet end of the air outlet shell of the turbocharger, and the mixer impeller is arranged on the mixer shaft through the mixer bearing. The turbocharger air outlet shell with the urea spraying and mixing device disclosed by the invention prolongs the space length for mixing the urea solution and the waste gas, and simultaneously improves the mixing uniformity of the urea solution and the waste gas due to the arrangement of the urea mixing structure at the air outlet end of the turbocharger air outlet shell, thereby inhibiting the crystallization of the urea solution and improving the denitration capability.

Description

Turbo charger shell of giving vent to anger with urea sprays mixing arrangement
Technical Field
The invention relates to the technical field of turbocharging, in particular to a turbocharger air outlet shell with a urea injection mixing device.
Background
The diesel engine of the rail transit diesel locomotive has high power, low back pressure and small space. Diesel locomotive diesel engine tail gas purification usually adopts mature Selective Catalytic Reduction (SCR) mode denitration. The SCR consists of parts such as injection, mixing, catalytic reaction, etc., and requires a space of a certain length in the gas flow direction to meet the working requirements. Among the prior art, the urea blender sets up the import department at SCR, and the urea sprayer can be to urea ware injection urea, and partly urea can be fast in urea blender surface evaporation, and during another part urea can be got rid of high temperature waste gas owing to receive centrifugal force, gets into the SCR catalyst converter after mixing with high temperature waste gas and carries out chemical reaction.
However, because the pipeline is longer between the import department of giving vent to anger end of the turbine of booster and SCR, high temperature waste gas gets into SCR from the booster and has heat loss, the exhaust gas temperature that leads to getting into SCR is less than the exhaust gas temperature of the turbine export of booster, it is limited to cause the urea injection volume, influence the mixing efficiency of local operating point waste gas and urea, urea crystallization appears easily, cause NOx's emission control degree of difficulty to increase, and simultaneously, among the prior art, urea solution and the unable effective abundant mixture of waste gas, the risk of urea crystallization has further been increased, nitrogen removal efficiency has been influenced.
Disclosure of Invention
The invention provides a turbocharger air outlet shell with a urea injection mixing device, which aims to solve the problems of low mixing uniformity of exhaust gas and urea and high urea crystallization of the conventional turbocharger, and low SCR nitrogen removal efficiency.
The technical means adopted by the invention are as follows:
a turbocharger air outlet shell with a urea injection mixing device comprises,
a turbocharger outlet housing;
the urea injection device is arranged at the air outlet end of the air outlet shell of the turbocharger and is used for injecting urea solution to the air outlet shell of the turbocharger; and the urea mixing structure is arranged at the gas outlet end of the gas outlet shell of the turbocharger and used for mixing diesel engine tail gas with urea solution, the urea mixing structure comprises a mixer shaft, a mixer bearing and a mixer impeller, the mixer shaft is arranged at the gas outlet end of the gas outlet shell of the turbocharger, the mixer bearing is arranged on the mixer shaft, the mixer impeller is arranged on the mixer shaft through the mixer bearing, and the diesel engine tail gas and the urea solution can drive the mixer impeller to rotate.
Furthermore, a plurality of groups of urea mixing structures are arranged at the air outlet end of the air outlet shell of the turbocharger.
Further, the number of blades of each mixer impeller is odd.
Furthermore, each mixer shaft is provided with a plurality of mixer impellers, and the blade shapes of two adjacent mixer impellers on the same mixer shaft are opposite.
Further, the mixer impellers on two adjacent mixer shafts are staggered.
Further, each of the mixer impellers has at least one row of blades.
Further, the urea solution spraying direction of the urea spraying device is the same as the exhaust airflow direction of the exhaust shell of the turbocharger.
Furthermore, a plurality of mixer shaft clamping grooves are formed in the air outlet end of the air outlet shell of the turbocharger, two ends of the mixer shaft are clamped into the mixer shaft clamping grooves respectively, and the depth of each mixer shaft clamping groove is the same as the diameter of the mixer shaft; the air outlet end of the air outlet shell of the turbocharger is connected with a pipeline flange, and a non-metal sealing gasket is arranged between the air outlet end of the air outlet shell of the turbocharger and the pipeline flange.
Further, turbo charger goes out the air casing and is close to the air outlet end and be equipped with urea injection apparatus flange, be connected with urea injection apparatus flange on the urea injection apparatus flange, install air feed pipe connector and feed pipe connector on the urea injection apparatus flange, be equipped with on the air feed pipe connector the check valve, air feed pipe connector and feed pipe connector are arranged in one end in the turbo charger goes out the air casing with urea injection apparatus connects, the feed pipe connector with the air feed pipe connector other end passes through metal collapsible tube and is connected with urea jar and compressed air source respectively.
Further, the mixer bearing is a rolling bearing with an end cover.
Compared with the prior art, the turbocharger air outlet shell with the urea injection mixing device disclosed by the invention has the following beneficial effects: through setting up urea injection apparatus at the gas outlet end of turbo charger play gas shell casing, prolonged the space length that urea solution and waste gas mix, simultaneously, owing to set up the urea mixed structure at the gas outlet end of turbo charger play gas shell casing, improved the homogeneity that urea solution and waste gas mix, and then, further suppression urea crystallization has improved the denitration ability.
Drawings
FIG. 1 is a top view of a first embodiment of a turbocharger outlet housing with a urea injection mixing device as disclosed herein;
FIG. 2 is a front view of a first embodiment of a turbocharger outlet housing with a urea injection mixing device according to the present disclosure;
FIG. 3 is an axial view of a first embodiment of a turbocharger outlet housing with a urea injection mixing device as disclosed herein;
FIG. 4 is a front view of a mixer wheel in a turbocharger outlet housing with a urea injection mixing device according to the present disclosure;
FIG. 5 is a side view of a mixer wheel in a turbocharger outlet housing with a urea injection mixing device as disclosed herein;
FIG. 6 is an enlarged partial schematic view of the dashed box of FIG. 2, showing a cross-sectional view taken along the end of the mixer shaft;
FIG. 7 is a top view of a second embodiment of a turbocharger outlet housing with a urea injection mixing device as disclosed herein;
FIG. 8 is a front view of a second embodiment of a turbocharger outlet housing with a urea injection mixing device as disclosed herein;
FIG. 9 is an axial view of a second embodiment of the disclosed turbocharger outlet housing with a urea injection mixing device.
In the figure: 1. the device comprises a turbocharger air outlet shell, a turbocharger air outlet end, a turbocharger shaft clamping groove, a turbocharger air outlet shell clamping groove, a turbocharger air outlet shell connecting flange, a urea injection device connecting flange, a turbocharger 2, a urea injection device, a turbocharger air outlet device fixing flange 21, an air supply pipe connector, a turbocharger air supply pipe connector 22, a liquid supply pipe connector, a turbocharger air supply pipe connector 23, a check valve 24, a metal hose 3, a turbocharger mixing structure 30, a turbocharger shaft 31, a turbocharger bearing 32, a turbocharger impeller 33, a turbocharger blade 34 and a turbocharger blade base.
Detailed Description
Example 1
Referring to fig. 1, 2 and 3, the turbocharger outlet housing with urea injection mixing device according to the present disclosure includes,
the turbocharger air outlet shell comprises a turbocharger air outlet shell body 1, wherein in the embodiment, the turbocharger air outlet shell body is a turbocharger air outlet shell for an axial-flow type turbocharger;
the urea injection device 2 is arranged at an air outlet end 10 of the turbocharger air outlet shell body 1 and is used for injecting urea solution into the turbocharger air outlet shell body 1; and the urea mixing structure 3 is arranged at the air outlet end 10 of the air outlet shell of the turbocharger and is used for mixing diesel engine exhaust with urea solution, the urea mixing structure 3 comprises a mixer shaft 30, a mixer bearing 31 and a mixer impeller 32, the mixer shaft 30 is arranged at the air outlet end 10 of the air outlet shell of the turbocharger, the mixer bearing 31 is arranged on the mixer shaft 30, the mixer impeller 32 is arranged on the mixer shaft 30 through the mixer bearing 31, and the diesel engine exhaust and the urea solution can drive the mixer impeller 32 to rotate.
Specifically, in this embodiment, a urea injection device connecting flange 13 for connecting with a urea injection device 2 is integrally cast on the turbocharger air outlet housing 1 near the air outlet end, a urea injection device fixing flange 20 is connected on the urea injection device connecting flange 13, the urea injection device connecting flange 13 and the urea injection device fixing flange 20 are connected by bolts, the urea injection device 2 is installed on the urea injection device fixing flange 20, an air supply pipe connector 21 and a liquid supply pipe connector 22 are installed on the urea injection device fixing flange 20, the urea injection device 2 is placed in the turbocharger air outlet housing 1 through the urea injection device fixing flange 20, the air supply pipe connector 21 and the liquid supply pipe connector 22 are placed in one end of the turbocharger air outlet housing 1 and connected with the urea injection device 2, the exhaust gas purification device is characterized in that a check valve 23 is arranged on the air supply pipe connector 21, the air supply pipe connector 21 and the air supply pipe connector 22 are connected with a urea tank and a compressed air source through a metal hose 24, urea solution and compressed air respectively enter the urea injection device 2 through the air supply pipe connector 22 and the air supply pipe connector 21 and are mixed in the urea injection device, the urea injection device is generally a urea spray gun, the urea solution is injected into an exhaust shell of the turbocharger through the urea injection device 2, tail gas of a diesel engine of the diesel locomotive flows through a turbine end of the turbocharger and flows into an exhaust shell of the turbocharger at a certain surplus speed, the urea solution continuously sprayed by the urea injection device 2 is mixed with exhaust gas discharged by the turbocharger, the check valve 23 arranged on the air supply pipe connector 21 can ensure that the gas cannot flow back when the urea injection device does not work, and the metal hose is connected with the air supply pipe connector, the device is convenient to install, the urea is easy to crystallize, and the metal hose is convenient to overhaul and replace.
The urea mixing structure 3 for mixing the diesel engine tail gas with the urea solution is arranged at the air outlet end 10 of the turbocharger air outlet shell, the urea mixing structure 3 comprises a mixer shaft 30, a mixer bearing 31 and a mixer impeller 32, the mixer shaft 30 is arranged at the air outlet end 10 of the turbocharger air outlet shell, the mixer bearing 31 is fixedly arranged on the mixer shaft 30, namely the mixer shaft 30 is in interference fit with the inner ring of the mixer bearing 31 to ensure that the inner ring of the bearing is fixed, the mixer impeller 32 is arranged on the outer ring of the bearing, the mixer impeller 32 is arranged on the mixer shaft 30 through the mixer bearing 31, in the embodiment, the mixer impeller 32 is in interference fit with the outer diameter of the bearing, so that the outer ring of the bearing can rotate together with the impeller, specifically, in this embodiment, as shown in fig. 6, a mixer shaft clamping groove 11 is arranged at the air outlet end 10 of the turbocharger air outlet housing shell, two ends of a mixer shaft 30 can be processed into a flat structure or a square column structure, the diameter of the mixer shaft 30 in fig. 6 is the same as the depth of the mixer clamping groove, two planes are processed at the end of the mixer shaft, so that when the mixer shaft is clamped into the mixer clamping groove, the two planes at the end of the mixer shaft are in contact with two side wall surfaces of the mixer shaft clamping groove, so that the mixer shaft cannot rotate after the two ends of the mixer shaft 30 are respectively clamped into the mixer shaft clamping groove 11, the mixer shaft clamping groove 11 is a groove arranged on the inner wall surface of the air outlet port, and the depth of the mixer shaft clamping groove 11 is the same as the diameter of the mixer shaft 30; the gas outlet end 10 of the gas outlet shell of the turbocharger is connected with a pipeline flange, a non-metal sealing gasket (not shown in the figure) is arranged between the gas outlet end 10 of the gas outlet shell of the turbocharger and the pipeline flange, a mixer shaft clamping groove is pressed through the pipeline flange and the non-metal sealing gasket to limit the movement of a mixer shaft, and the non-metal sealing gasket between the two flanges can play a role in buffering. Diesel engine tail gas with urea solution can drive mixer impeller 32 rotates, and then changes the stable flow state of air current in the turbo charger for waste gas and urea solution carry out the intensive mixing, guarantee mixed length, increase the mixing degree when practicing thrift the space, and then improved the mixing efficiency of urea solution and waste gas.
Compared with the traditional structure that the urea injection device is connected into the aftertreatment equipment behind the supercharger, the air outlet shell of the turbocharger with the urea injection mixing device, disclosed by the invention, has the advantages that the space in the air flowing direction of 300mm is at least increased, and the mixing efficiency is improved. And to the limited current situation in track traffic diesel locomotive inner space, can reduce SCR catalytic reaction device volume under the condition that does not influence turbo charger performance for the structure is compacter. Simultaneously, owing to set up the urea mixed structure at the gas outlet end, the urea mixed structure has changed the steady flow state of air current, utilizes booster turbine outlet tail gas flowing current to blow the impeller rotation promptly, and dynamic mixing tail gas and urea liquid drop make the mixture more even abundant, have further improved the mixed degree of urea solution and waste gas to, can further improve the efficiency of waste gas denitrogenation denitration. The urea injection device is connected with the air outlet shell of the turbocharger through a flange structure, so that the installation and maintenance of equipment can be facilitated. Simultaneously, turbo charger goes out the integrative casting of shell and urea injection apparatus flange, guarantees turbo charger's whole leakproofness and intensity.
Further, as shown in fig. 3, the outlet end 10 of the turbocharger air outlet housing shell is provided with a plurality of groups of urea mixing structures 3, shown as 5 groups in the figure, so as to further improve the mixing degree of the exhaust gas and the urea solution, thereby improving the denitrification and denitration effect.
Further, as shown in fig. 4 and 5, the mixer impeller 32 includes a mixer blade base 34 and blades 33, the mixer blade base 34 is a circular sleeve structure, the plurality of blades 33 are uniformly distributed on the mixer blade base 34 in the circumferential direction, the number of the blades 33 of each mixer impeller 32 is odd, and the mixer impeller is in an unstable state due to the odd number of the blades 33, so that the mixer impeller can be blown by the exhaust gas in a small gas flow, thereby facilitating the mixing of the exhaust gas and the urea solution.
Furthermore, each mixer shaft 30 is provided with a plurality of mixer impellers 32, the blade shapes of two adjacent mixer impellers 32 on the same mixer shaft 30 are opposite, and the blade shapes of two adjacent groups of mixer impellers 32 are opposite, so that when the exhaust gas blows the impellers to rotate, the rotating directions of the two adjacent groups of impellers are opposite, the stable flowing state of the airflow is further changed, and the mixing degree of the exhaust gas and the urea solution is improved. The blade shapes of the two adjacent groups of blades can be the same or different, preferably, the blade shapes of the two adjacent groups of blades are different and the rotating directions are opposite, so that the flowing stability of the gas can be further changed, the gas is disturbed, and the mixing degree of the waste gas and the urea solution is improved.
Further, when the air outlet end 10 of the turbocharger air outlet housing shell is provided with a plurality of sets of the urea mixing structures 3, the mixer impellers 32 on two adjacent mixer shafts 30 are arranged in a staggered manner, as shown in fig. 3, in this embodiment, the number of the mixer impellers on two adjacent mixer shafts 30 is 3 and 4, respectively, and the mixer impellers 32 on two adjacent mixer shafts 30 are arranged in a staggered manner by means of different numbers of the mixer impellers, that is, the bearing positions on two adjacent sets of mixer shafts are mutually interpenetrated and are not on the same plane, so that the impellers are not on the same plane, and the mixing degree of the exhaust gas and the urea solution is further increased.
Further, each of the mixer impellers 32 has at least one row of blades, that is, one or more rows of blades may be disposed on the mixer impeller, and when a plurality of rows of blades are disposed, the mixing efficiency may be further improved.
Further, the urea solution spraying direction of the urea spraying device 2 is the same as the exhaust airflow direction of the exhaust shell housing 1 of the turbocharger, and the mixing and evaporation of the exhaust gas and the urea solution can be further improved due to the fact that the urea solution spraying direction is the same as the exhaust airflow direction.
Further, blender bearing 31 is the antifriction bearing of taking the end cover, preferably is high temperature resistant oilless bearing or journal bearing, sets up the bearing end cover and can prevent that the particulate matter from getting into the bearing slide when guaranteeing the reliability in, extension bearing life.
Example 2
Referring to fig. 7, 8 and 9, a second embodiment of the exhaust housing of a turbocharger with a urea injection mixing device is disclosed, which is different from embodiment 1 in that embodiment 1 is used for an axial-flow turbocharger, and in that embodiment is disclosed as the exhaust housing of a turbocharger for a radial-flow turbocharger, and one or more sets of urea injection devices can be arranged to further improve the efficiency of denitrification and denitration in the turbocharger.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. The utility model provides a turbo charger goes out gas shell with urea sprays mixing arrangement which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a turbocharger outlet housing;
the urea injection device is arranged at the air outlet end of the air outlet shell of the turbocharger and is used for injecting urea solution to the air outlet shell of the turbocharger; and the number of the first and second groups,
the urea mixing structure is arranged at an air outlet end of the air outlet shell of the turbocharger and used for mixing diesel engine tail gas with urea solution, the urea mixing structure comprises a mixer shaft, a mixer bearing and a mixer impeller, the mixer shaft is installed at the air outlet end of the air outlet shell of the turbocharger, the mixer bearing is installed on the mixer shaft, the mixer impeller is installed on the mixer shaft through the mixer bearing, and the diesel engine tail gas and the urea solution can drive the mixer impeller to rotate.
2. The turbocharger outlet housing with urea injection mixing device of claim 1, wherein: and a plurality of groups of urea mixing structures are arranged at the air outlet end of the air outlet shell of the turbocharger.
3. The turbocharger outlet housing with urea injection mixing device of claim 2, wherein: the number of blades of each mixer impeller is odd number pieces.
4. The turbocharger outlet housing with urea injection mixing device of claim 2 or 3, characterized in that: each mixer shaft is provided with a plurality of mixer impellers, and the blade shapes of two adjacent mixer impellers on the same mixer shaft are opposite.
5. The turbocharger outlet housing with urea injection mixing device of claim 4, wherein: the mixer impellers on two adjacent mixer shafts are arranged in a staggered mode.
6. The turbocharger outlet housing with urea injection mixing device of claim 5, wherein: each of the mixer impellers has at least one row of blades.
7. The turbocharger outlet housing with urea injection mixing device of claim 6, wherein: and the urea solution spraying direction of the urea spraying device is the same as the exhaust airflow direction of the exhaust shell of the turbocharger.
8. The turbocharger outlet housing with urea injection mixing device of claim 1, wherein: a plurality of mixer shaft clamping grooves are formed in the air outlet end of the air outlet shell of the turbocharger, two ends of the mixer shaft are clamped into the mixer shaft clamping grooves respectively, and the depth of each mixer shaft clamping groove is the same as the diameter of the mixer shaft; the air outlet end of the air outlet shell of the turbocharger is connected with a pipeline flange, and a non-metal sealing gasket is arranged between the air outlet end of the air outlet shell of the turbocharger and the pipeline flange.
9. The turbocharger outlet housing with urea injection mixing device of claim 1, wherein:
the utility model discloses a turbo charger air outlet shell, including turbo charger air outlet shell, urea injection apparatus flange, air supply pipe connector and feed pipe connector, be equipped with on the air supply pipe connector, check valve, air supply pipe connector and feed pipe connector are arranged in turbo charger air outlet shell casing one end in the shell with urea injection apparatus connects, the feed pipe connector with the air supply pipe connector other end is connected with urea jar and compressed air source respectively through metal collapsible tube.
10. The turbocharger outlet housing with urea injection mixing device of claim 1, wherein: the mixer bearing is a rolling bearing with an end cover.
CN202211236044.5A 2022-10-10 2022-10-10 Turbo charger shell of giving vent to anger with urea sprays mixing arrangement Pending CN115450956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211236044.5A CN115450956A (en) 2022-10-10 2022-10-10 Turbo charger shell of giving vent to anger with urea sprays mixing arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211236044.5A CN115450956A (en) 2022-10-10 2022-10-10 Turbo charger shell of giving vent to anger with urea sprays mixing arrangement

Publications (1)

Publication Number Publication Date
CN115450956A true CN115450956A (en) 2022-12-09

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ID=84308647

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211236044.5A Pending CN115450956A (en) 2022-10-10 2022-10-10 Turbo charger shell of giving vent to anger with urea sprays mixing arrangement

Country Status (1)

Country Link
CN (1) CN115450956A (en)

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