CN205605284U

CN205605284U - Drip irrigation formula reduction catalyst blast pipe

Info

Publication number: CN205605284U
Application number: CN201620221382.5U
Authority: CN
Inventors: 陈温乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-22
Filing date: 2016-03-22
Publication date: 2016-09-28
Anticipated expiration: 2026-03-22

Abstract

The utility model provides a drip irrigation formula reduction catalyst blast pipe, is equipped with the first hole of several at the pipe wall of a blast pipe to and enter the mouth along the axial from waste gas toward exhaust outlet range configuration several through type pottery filter core, or locate to set up a wall flow formula filter core at nearest exhaust outlet in the blast pipe, the blast pipe sets up the honeycomb duct that connects a container in a row and be equipped with several second hole outward, these second holes correspond these first holes, borrow by the urea water of solenoid valve control splendid attire in this container whether through and drip irrigation via these second holes and first hole and is absorbed at the ceramic wool of through type pottery filter core with wall flow formula filter core external diameter by the cladding in getting into the blast pipe, and then in the hole of infiltration as ceramic filter cores of these through types of catalyst and wall flow formula filter core, nitrogen oxide (NOx) etc. Make the poisonous waste gas of exhaust if can restore into nitrogen gas and moisture being decomposed by urea or ammonia during with wall flow formula filter core through the ceramic filter core of through type, in order to reduce the pollution to the environment.

Description

Drip irrigation type reducing catalyst exhaustor

Technical field

This utility model relates to the catalytic converting device of a kind of exhaustor being exclusively used in diesel motor, especially It is a kind of device that can be effectively fully cleaned up by the waste gas that diesel motor is discharged.

Background technology

Diesel oil carbon particulate cleaner (diesel particulate filter, be abbreviated as DPF) Effect is used to catch collects the waste gas of diesel vehicle burning and filters carbon particulate.When the carbon of trapping is micro- Time more than grain the most to a certain degree, the ECU driving computer of vehicle can carry out " filter regeneration " running, Carbon particulate in cleaner burns into carbon dioxide discharge, maintain filtering function with polishing filter.

The waste gas of diesel vehicle discharge, in addition to containing carbon particulate, also includes and to pollute the environment Nitrogen oxides (NOx), the most existing on be to be catalyzed restorer (selective catalytic Reduction, SCR) process nitrogen oxides, the system of this catalysis restorer be by carbamide via The carbamide cylinder being located at automobile injects burned waste gas, with by red-hot exhaust gas conversion ammonification (Ammonia, NH3), and ammonia and the nitrogen oxides (NOx) in catalysis restorer produce chemistry also Original work use, thus be converted into and do not affect the nitrogen of natural environment (Nitrogen) and water.Due to aforementioned The diesel oil of conversion reduction and urea ratio be usually 20:1 (the most often use the diesel oil of 20 parts, Just 1 part of carbamide is needed), the consumption causing carbamide is the quickest, it is necessary to often add just could maintain Often running, uses and bothers very much, and extremely expend money.

Utility model content

Technical problem underlying to be solved in the utility model is, overcome that prior art exists is upper State defect, and a kind of drip irrigation type reducing catalyst exhaustor is provided, solve at existing diesel motor purification Reason device, because the consumption of carbamide is the quickest, it is necessary to often adds to maintain making of normal operation With trouble and pecuniary cost.

This utility model solves its technical problem and be the technical scheme is that

A kind of drip irrigation type reducing catalyst exhaustor, it is characterised in that the tube wall of an exhaustor is provided with number Individual first hole, and be axially arranged toward waste gas outlet from exhaust gas entrance in exhaustor Several through type ceramic elements, or a wall-flow type filter element is being set at waste gas outlet；Aerofluxus Pipe is outer to be arranged connection one container and is provided with the mozzle of several second hole, such second hole pair The first hole should be waited, by electromagnetic valve control to contain urea water in this container whether by and It is covered by through type ceramic filtering in entering exhaustor via such second hole and the first hole drip irrigation Core absorbs with the ceramic wool of wall-flow type filter element external diameter, and then penetrates into the such through type pottery as catalyst In the hole of porcelain filter element and wall-flow type filter element, the poisonous fume such as nitrogen oxides (NOx) etc. making discharge can Nitrogen is become by carbamide or ammonia decomposition-reduction in addition when by through type ceramic element with wall-flow type filter element With moisture, to reduce pollution to environment.

Technological means of the present utility model includes: an exhaustor, includes and is positioned at axial two ends And the exhaust gas entrance that is interconnected and a waste gas outlet, the tube wall of this exhaustor is provided with several first Hole；Several through type ceramic elements, its external diameter is coated with ceramic wool, and it is edge in this exhaustor The axial of this exhaustor to be arranged toward this waste gas outlet from this exhaust gas entrance；One wall-flow type filter element, It is configured at the interior position closest to this waste gas outlet of this exhaustor；One mozzle, is provided with several second Hole, this mozzle is located at outside the tube wall of this exhaustor, makes such second hole corresponding such the One hole, this mozzle is connected to the container of a splendid attire urea water, and in a position of this mozzle One electromagnetic valve is set, this electromagnetic valve control the urea water in this container whether by and via such Two holes and the first hole are absorbed by this ceramic wool, and then penetrate into such through type ceramic element and wall In the hole of flow type filter element.

The another kind of embodiment selected, this utility model can replace with another through type ceramic element should Wall-flow type filter element.

Preferably, such through type ceramic element that this utility model is located in exhaustor and wall-flow type Filter element compartment of terrain configures.

Implementing in aspect one, this utility model is the power supply that electromagnetic valve is electrically connected with a vehicle, While vehicle launch power supply, start this electromagnetic valve, while vehicle cuts out power supply, close this electricity Magnet valve.

Preferably, this utility model is along axially arranged such first hole of exhaustor and is arranged in One straight line, and along this mozzle axially arranged such second hole and arrange in line.

The utility model has the advantage of: after exhaustor of the present utility model is installed on vehicle, car Can utilize in time travelling and to be installed on the CC Catalytic Converter of vehicle in advance automatically waste gas remains Carbon particle burning purifies, then makes waste gas pass through each through type ceramic element with wall-flow type filter element to enter One step removes noxious substance.Additionally, this utility model need not as existing same device necessary Often add urea water to enter in engine, but constantly appropriate urea water supply is coated with to each The ceramic wool of through type ceramic element and wall-flow type filter element, by ceramic wool absorption urea water constant Ground keeps moisture state, and then penetrates in the hole of such through type ceramic element or wall-flow type filter element, The poisonous fume such as nitrogen oxides (NOx) etc. making discharge can be by through type ceramic element and wall stream Nitrogen and moisture is become, to reduce the pollution to environment by carbamide or ammonia in addition decomposition-reduction during formula filter element.

The beneficial effects of the utility model are, solve existing diesel motor purifying processing device, because of urine The consumption of element is the quickest, it is necessary to often adds and could maintain trouble and gold in the use of normal operation Cost on money.

Accompanying drawing explanation

With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.

Fig. 1 is first embodiment plan cross-section schematic diagram of the present utility model；

Fig. 2 is the schematic perspective view of first embodiment of the present utility model；

Fig. 3 is the plan cross-section schematic diagram of the second embodiment of the present utility model.

Label declaration in figure:

1 ... exhaustor

10 ... the first hole

11 ... exhaust gas entrance

12 ... waste gas outlet

2 ... through type ceramic element

2A ... ceramic wool

3 ... wall-flow type filter element

4 ... mozzle

41 ... the second hole

5 ... container

51 ... add mouth

6 ... electromagnetic valve

Detailed description of the invention

" first embodiment "

As shown in Figures 1 and 2, the drip irrigation type reducing catalyst exhaustor that this utility model provides, it is the years old One embodiment includes an exhaustor 1, and this exhaustor 1 has and is positioned at axial two ends and is interconnected Exhaust gas entrance 11 and a waste gas outlet 12, the tube wall of exhaustor 1 is provided with several the first through hole Hole 10, and such first hole 10 axially arranging in line along exhaustor 1.In exhaustor 1 Several through type ceramic element 2 and a wall-flow type filter element 3 are then set；Preferably, such through type is made pottery Porcelain filter element 2 and wall-flow type filter element 3 be compartment of terrain configuration in exhaustor 1；Each through type ceramic element 2 With the ceramic wool 2A that the external diameter of wall-flow type filter element 3 is all coated with fluid-absorbing, such through type pottery Filter element 2 arranges toward waste gas outlet 12 along the axial of exhaustor 1 from exhaust gas entrance 11 in exhaustor 1 Configuration, and a wall-flow type filter element 3 is arranged at the position closest to waste gas outlet 12.

Arranging a mozzle 4 outside the tube wall of exhaustor 1, the tube wall of this mozzle 4 is then provided with several Two holes 41, and such second hole 41 axially arranging in line along mozzle 4；Mozzle The 4 outer rear flank of tube wall being located at exhaustor 1 make such second such first hole 10 of hole 41 line correspondences And be interconnected；Preferably, mozzle 4 is fixed on outside the tube wall of exhaustor 1 with solder technology, And the periphery that first between hole 10 and the second hole 41 is sealed.This mozzle 4 is connected to a use Containing the container 5 of urea water, the top of container 5 has interpolation mouth 51 and can be used to add urea water； One appropriate location of mozzle 4 arranges one for controlling the electromagnetic valve 6 whether urea water is passed through；At this In the embodiment of utility model, this electromagnetic valve 6 is electrically connected with the power supply of a vehicle, when vehicle launch electricity Start this electromagnetic valve 6 while source, while vehicle cuts out power supply, close this electromagnetic valve 6.

The described through type ceramic element porous characteristic of application cordierite ceramic catches diesel motor The particulate contaminant discharged, each passage of filter element is at one end opening, at the other end then Closed, therefore, force aerofluxus to be passed by the ceramic wall of porous.Owing to the granule of flue dust is relatively made pottery The hole of porcelain wall is big, therefore will be caught on passage by benefit.When filtering element (cartridge) load reaches the limit of, this A little flue dust must be ignited burning (oxidation) and could recover the function of filter element, the step of this soot oxidation Be called " regeneration ".In order to reduce back pressure, it is to avoid affect the horsepower of engine, general recommendations uses draws The ceramic element capacity holding up capacity more than 2 times is standard.

Described wall-flow type filter element use metallic particles storage plus coating oxidation catalyst (DOC), it be by Multilamellar forms with the metal corrugated plate comprising metal wire web plate winding of spade-type structure, reprocessing Metal honeycomb filter element.DOC (200 DEG C-450 DEG C) within the scope of suitable temperature is continuously generated NO2 And flowing into grain catcher, NO2 and the carbon granule being deposited on metal fiber felt plate are in suitable temperature In the range of degree, (200 DEG C-450 DEG C) persistently occur oxidation regeneration to react, and this process is the most continuously Passive regeneration.Grain catcher and DOC act on the carbon granule reducing in waste gas jointly.

Function mode after this utility model is installed on vehicle is: can open electricity after vehicle launch simultaneously Magnet valve 6 with by appropriate carbamide water from container 5 by the second hole 41 of mozzle 4 and exhaustor 1 the One hole 10 is supplied to ceramic wool 2A, ceramic wool 2A and is maintained at moisture state after having adsorbed urea water, And constantly urea water is penetrated into each through type ceramic element 2 and wall-flow type filter element 3.When diesel oil draws The waste gas holding up discharge is entered by the exhaust gas entrance 11 of exhaustor 1 one end and from the waste gas outlet of the other end During 12 discharge, poisonous fume such as nitrogen oxides (NOx) etc., can be led directly to by each sequentially Formula ceramic element 2 is become nitrogen and moisture with during wall-flow type filter element 3 by carbamide or ammonia decomposition-reduction in addition, To reduce the pollution to environment.

" the second embodiment "

As it is shown on figure 3, the second embodiment of the drip irrigation type reducing catalyst exhaustor of this utility model offer Substantially having the structure being same as aforementioned first embodiment, it the only difference is that in exhaustor 1 equal Axially arrangement ground coordinates several through type ceramic elements 2, and is not provided with any wall-flow type filter element.Whereby, After vehicle launch, meeting opens solenoid valve 6 simultaneously is to pass through mozzle 4 by appropriate carbamide water from container 5 First hole 10 of the second hole 41 and exhaustor 1 is supplied to ceramic wool 2A, ceramic wool 2A and has been adsorbed urine It is maintained at moisture state after element water, and constantly urea water is penetrated into each through type ceramic element 2. When the waste gas of diesel motor discharge entered by the exhaust gas entrance 11 of exhaustor 1 one end and from the other end During waste gas outlet 12 is discharged, poisonous fume such as nitrogen oxides (NOx) etc., can pass through sequentially Nitrogen and moisture is become, to reduce by carbamide or ammonia in addition decomposition-reduction during each through type ceramic element 2 Pollution to environment.

The above, be only preferred embodiment of the present utility model, not to this utility model Make any pro forma restriction, every according to technical spirit of the present utility model to above example institute Any simple modification, equivalent variations and the modification made, all still falls within technical solutions of the utility model In the range of.

Claims

1. a drip irrigation type reducing catalyst exhaustor, it is characterised in that including:

One exhaustor, include be positioned at axial two ends and the exhaust gas entrance being interconnected and one give up Gas exports, and the tube wall of this exhaustor is provided with several first hole；

Several through type ceramic elements, its external diameter is coated with ceramic wool, its in this exhaustor along The axial of this exhaustor is arranged toward this waste gas outlet from this exhaust gas entrance；

One wall-flow type filter element, is configured at the interior position closest to this waste gas outlet of this exhaustor；

One mozzle, is provided with several second hole, and this mozzle is located at outside the tube wall of this exhaustor, Making corresponding such first hole of such second hole, this mozzle is connected to the appearance of a splendid attire urea water Device, and one electromagnetic valve is set in a position of this mozzle, this electromagnetic valve controls the urine in this container Element water whether by and absorbed by this ceramic wool via such second hole and the first hole, and then ooze Enter in the hole of such through type ceramic element and wall-flow type filter element.

Drip irrigation type reducing catalyst exhaustor the most according to claim 1, it is characterised in that described Wall-flow type filter element can be replaced by another through type ceramic element.

Drip irrigation type reducing catalyst exhaustor the most according to claim 1, it is characterised in that described Etc. through type ceramic element and the compartment of terrain configuration in this exhaustor of this wall-flow type filter element.

Drip irrigation type reducing catalyst exhaustor the most according to claim 2, it is characterised in that described Etc. the compartment of terrain configuration in this exhaustor of through type ceramic element.

Drip irrigation type reducing catalyst exhaustor the most according to claim 1 and 2, it is characterised in that Described electromagnetic valve is electrically connected with the power supply of a vehicle, starts this electricity while this vehicle launch power supply Magnet valve, closes this electromagnetic valve while this vehicle cuts out power supply.

Drip irrigation type reducing catalyst exhaustor the most according to claim 1 and 2, it is characterised in that Axially arranging in line along this exhaustor such as described the first hole such as grade, and such second hole edge The axially arrangement of this mozzle in line.