A kind of exhaust gas processing device with self-cleaning function
Technical field
The utility model relates to tail gas clean-up processing, more specifically, the utility model relates to one kind to have self-cleaning function
The exhaust gas processing device of energy.
Background technique
The quantity of automobile is increasing year by year, while bringing convenient, also causes pollution to atmosphere, affects people
The living environment of class.Especially tunnel construction, in hole the tail gas of equipment because can not rapidly, be effectively discharged out outside hole, seriously dislike
Change in-cavity construction environment, reduced construction efficiency, compromises personnel health.Therefore, what vent gas treatment was just shown is particularly important.It is existing
Some automobile exhaust systems are mainly toxic by carbon monoxide, oxynitrides, hydronitrogen etc. by catalytic reduction reaction
Pernicious gas is converted into the innocuous substances such as carbon dioxide, water and is discharged into air.But due to fuel oil or the use of lubricating oil etc.
Reason, makes catalytic reduction reaction decrease in efficiency, and oiliness particle, soot particulate matter are unable to get abundant filtering.Still further aspect,
Although some external tail gas filters can be accomplished to carry out further purified treatment to tail gas, how to prevent exhaust gas from returning
Flow to engine, process it is self-cleaning and device break down when how to guarantee original system in terms of lack consideration.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of vent gas treatment dress with self-cleaning function
It sets, can solve external exhaust gas processing device with expectation self-cleaning in use cannot cause device to break down, and lead simultaneously
Tail gas is caused to be back to the problem of engine causes the products protocercal tail gas processing system cisco unity malfunction such as automobile.
In order to solve the above technical problems, a kind of embodiment of the utility model uses following technical scheme:
A kind of exhaust gas processing device with self-cleaning function, including it is offgas duct, ventilating duct, dust suction filter cylinder, blower, close
Bend pipe is arranged in batten down and intelligent control module, the tail gas pipe end, installs flap valve on the outside of bend pipe, and bend pipe terminus inner is from upper
Oil strain layer and drainage layer are set gradually under, bend pipe end connects ventilating duct, and check valve is arranged in the junction of the two, and ventilating duct is another
One end face dust suction filter cylinder, dust suction filter cylinder is horizontally disposed by central shaft, and ventilating duct and dust suction filter cylinder are all disposed in sealed compartment,
Dust brush is arranged in face dust suction filter cylinder inside sealed compartment, dust bag is arranged outside sealed compartment, sealed compartment bottom is connected with dust bag, wind
Machine is arranged outside sealed compartment, is connected by connection air hose with dust suction filter cylinder, and fan outlet connects discharge pipe, installs wind in discharge pipe
Press detector;The dust suction filter cylinder includes the filter cylinder outer layer and filter cylinder internal layer of coaxial arrangement, between filter cylinder outer layer and filter cylinder internal layer
Several partitions are obliquely installed, the flap valve, blower and wind pressure detector are controlled respectively by intelligent control module;The blower
It (10) is forward and reverse blower, when blower forward direction exhausting, the air-flow in ventilating duct blows partition (19) and drives dust suction filter cylinder (8) certainly
Turn is dynamic, while scrubbing dust suction filter cylinder (8) surface by dust brush (13), when blower is reversely dried, connects the air-flow in air hose
Blowing partition (19) drives dust suction filter cylinder (8) to rotate automatically, while scrubbing dust suction filter cylinder (8) surface by dust brush (13).
Each self-retaining one in cavity both ends of the dust suction cartridge interior of the above-mentioned exhaust gas processing device with self-cleaning function
Group flabellum.
The dust suction filter cylinder of the above-mentioned exhaust gas processing device with self-cleaning function is connected on sealed compartment by bearing to carry out
Positioning, bearing belongs to dust suction filter cylinder to be flexibly connected, and dust suction filter cylinder can be rotated around bearing.
The dust suction filter cylinder of the above-mentioned exhaust gas processing device with self-cleaning function belongs to flexible connection with air hose is connect, and inhales
Dirt filter cylinder can be around connection air hose rotation.
Exhaust gas processing device according to claim 1 with self-cleaning function, dust bag described in feature by
Filter cloth is made.
In the above-mentioned exhaust gas processing device with self-cleaning function, oil strain layer is reticular structure layer, detachable installation
In bend pipe, oil strain layer includes oil mist removal material.
In the above-mentioned exhaust gas processing device with self-cleaning function, drainage layer is reticular structure layer, detachable installation
In bend pipe, drainage layer is made of water-absorbent material.
In the above-mentioned exhaust gas processing device with self-cleaning function, wind pressure threshold value is stored in the intelligent control module,
When wind pressure detector detects the wind pressure in discharge pipe lower than threshold value, intelligent control module controls flap valve and opens, same to time control
Blower processed is reversely dried.
The present apparatus is mountable on the exhaust system of the products such as automobile, by the mating reaction of two filtering areas, further
Tail gas is cleaned, the medium oil particle of tail gas, steam and carbon particle are filtered out, makes the tail gas more clean and environmental protection of discharge,
The device while cleaning of off-gas can self cleaning dust suction filter cylinder, so that tail gas clean-up sustainability is kept preferable effect,
And the device has system emergency defencive function, can start when wind pressure detector detects discharge pipe wind pressure lower than threshold value and is
It unites urgent defencive function, prevents tail gas from flowing backward and enter engine, automobile engine and tail gas are caused when avoiding the plant failure
System is damaged.
Compared with prior art, the utility model at least has the advantages that:
1, course of work dust suction filter cylinder is self-cleaning.The utility model dexterously passes through setting negative-pressure air fan, dust brush, guide duct
Structure and dust suction filter cylinder partition angle, play dust suction filter cylinder rotation in the course of work, the self-cleaning purpose of cartridge exine.
2, blower blowback is self-cleaning.When dust suction filter cylinder blocks, blown by blower into dust suction filter cylinder, it can be by part
Dust in filter cylinder takes filter cylinder out of, by dust bag to gas filtration, carries out the collection and filtering of dust.This process is pushed away because of air-flow
Dynamic flabellum drives filter cylinder rotation and the effect of dust brush, the self-cleaning purpose of filter cylinder is furthermore achieved, extends filter cylinder
Using the time and improve pick-up performance.
3, intelligent control.It is connected using blower, wind pressure detector, flap valve with intelligent control module, when wind pressure detects
When instrument detects that wind pressure is less than preset value, intelligent control flap valve is opened wide, and tail gas is directly discharged to atmosphere, it is ensured that original system is normal
Work.Check valve can effectively be controlled into the exhaust gas recirculation after filter cylinder, avoid damaging engine.
4, the device without manually clean the device can long duration use, saved cost.
Detailed description of the invention
Fig. 1 the utility model has the structural representation when exhaust gas processing device normal operating conditions of self-cleaning function
Figure.
Fig. 2 is structure when there is the utility model the exhaust gas processing device of self-cleaning function to enter system protection state
Schematic diagram.
Fig. 3 is the schematic cross-section of the dust suction filter cylinder of the exhaust gas processing device with self-cleaning function.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In normal operation, at the tail gas of products such as exhaust gas processing device cooperation automobile with self-cleaning function
Reason system carries out the further purified treatment of tail gas, and structure is as shown in Figure 1.The device includes offgas duct 1, ventilating duct 7, dust suction
Bend pipe 2 is arranged in filter cylinder 8, blower 10, sealed compartment 16 and intelligent control module, the end of offgas duct 1, and the outside installation of bend pipe 2 is turned over
Plate valve 3, in normal operation, flap valve 3 are in close state, and make the pipe between offgas duct, bend pipe and ventilating duct
Road is air-tightness pipeline.First filtering area is arranged in the terminus inner of bend pipe 2, which sets gradually oil strain layer from top to bottom
4 and drainage layer 5, oil strain layer be reticular structure layer, be removably mounted in bend pipe, oil strain layer includes oil mist removal material, drainage
Layer is reticular structure layer, is removably mounted in bend pipe, drainage layer is made of water-absorbent material, oil mist removal material and water-absorbent material
It is all existing commercially available material.When tail gas passes through from bend pipe, oily matter and the steam overwhelming majority therein is filtered, dust suction
Filter cylinder is second filtering area, the dust such as main filtration carbon particle.2 end of bend pipe connects ventilating duct 7, the junction setting of the two
Wind in offgas duct is oriented to dust suction filter cylinder 8 by check valve 6, ventilating duct 7, and 6 permission tail gas of check valve enter wind-guiding from offgas duct
Cylinder, without allowing tail gas reversely to flow into offgas duct from ventilating duct, tail gas reflux, which can enter in engine, leads to damage engine, single
Tail gas reflux can be prevented to enter engine to valve, when dust suction filter cylinder is blocked after being especially used for a long time, tail gas can be prevented
Reflux damages engine.Filter layer on the other end face dust suction filter cylinder 8 of ventilating duct 7, dust suction filter cylinder 8 are horizontal by central shaft
Setting.As shown in figure 3, dust suction filter cylinder 8 includes the filter cylinder outer layer 17 and filter cylinder internal layer 18 of coaxial arrangement, filter cylinder outer layer 17 and filter cylinder
Several partitions 19 are obliquely installed between internal layer 18.The tilt angle of partition 19 can be adjusted according to tail gas wind-force size, be inclined
Oblique angle should enable partition 19 that dust suction filter cylinder is driven to rotate when being blown by tail gas, while gas when blower is reversely dried
Stream, which is blown on partition 19, can also be such that dust suction filter cylinder rotates.Cavity both ends inside dust suction filter cylinder 8 can one group of flabellum of each self-retaining
20, the motive force that air-flow is increased when which reversely dries for blower drives dust suction filter cylinder to rotate backward, and flabellum can basis
Need selective setting.Ventilating duct 7 and dust suction filter cylinder 8 are all disposed in sealed compartment 16, and the effect of sealed compartment is to avoid tail gas not
It is just arranged by the filtering of dust suction filter cylinder to atmosphere, and sealed compartment plays the role of collecting the dust such as carbon particle.Inside sealed compartment
Dust brush 13 is arranged in face dust suction filter cylinder, and dust brush is arranged along dust suction filter cylinder axis direction, length and dust suction filter cylinder length phase
When dust brush can be set below dust suction filter cylinder, be fixed on sealed compartment, and when the rotation of dust suction filter cylinder, dust brush can be to suction
Dirt filter cylinder surface is scrubbed, and the solid particles such as the carbon particle on lower dust suction filter cylinder surface are swept.Dust bag 14 is set outside sealed compartment, it is close
Batten down bottom is connected with dust bag, and the dust such as carbon particle in sealed compartment following can be leaked into dust bag.Dust bag is by filter cloth system
At filter cloth has certain hole, can either prevent the dust such as carbon particle from leaking out, and allow air to pass through, and can pass through
The hole of filter cloth is selected, the gas permeability of filter cloth is controlled.Blower 10 be arranged outside sealed compartment 16, by connection air hose 9 with
Dust suction filter cylinder 8 is connected, and blower is forward and reverse blower, can positive exhausting, also can be reversed blowing, when device normal work,
Blower forward direction exhausting, when which enters system protection state, blower is reversely dried.Fan outlet connects discharge pipe 11, outlet air
Wind pressure detector 12 is installed in pipe.Flap valve 3, blower 10 and wind pressure detector 12 are controlled respectively by intelligent control module.Dust suction
Filter cylinder is connected on sealed compartment by bearing 15 and is positioned, and bearing belongs to dust suction filter cylinder to be flexibly connected, and dust suction filter cylinder can be around axis
It forwards dynamic.Dust suction filter cylinder belongs to flexible connection with air hose is connect, and dust suction filter cylinder can be around connection air hose rotation.Intelligence is not shown in Fig. 1
Energy control module, Fig. 2 are the structural schematic diagrams when device carries out system protection.Wind pressure threshold value is stored in intelligent control module,
When wind pressure detector detects the wind pressure in discharge pipe lower than threshold value, intelligent control module controls flap valve and opens, same to time control
Blower processed is reversely dried, and dust suction filter cylinder 8 rotates backward.Wind pressure in discharge pipe is lower than threshold value, illustrates that the device blocks, tail
Tracheae 1 is felt suffocated, and opening flap valve can be such that the tail gas in offgas duct 1 just directly arranges to atmosphere without the device, prevents tail
Gas, which flows backward, enters engine, and blower, which is reversely dried, can be such that dust suction filter cylinder rotates backward, dust brush to the reversed brush of dust suction filter cylinder,
Particulate matter is further removed, and blower blowing can promote the dust being adsorbed on dust suction filter cylinder to enter sealed compartment with air-flow
In, it is then collected by dust bag, dust bag has certain gas permeability, and the gas in sealed compartment is allowed to be arranged from here to atmosphere
In.When blower is reversely dried, check valve can prevent the gas in sealed compartment from flowing backward damage transmitter from offgas duct.
The device of the application can be arranged in automobile tail, but be not limited to that using on automobile, the present apparatus can be
It is used on all kinds of waste gas treatment equipments.
The working principle of the application is as follows:Under normal condition, using blower exhausting, negative pressure is formed in dust suction filter cylinder, it will
Tail gas in offgas duct successively sucks oil strain layer and drainage layer, is dried after tail gas oil removing, is then led by check valve and guide duct
Enter dust suction filter cylinder, which is arranged multistorey strainer mesh and a variety of absorption, filter medium, air-flow be transferred to dust suction filter cylinder every
Plate, since partition is arranged by certain angle tilt, it can be ensured that air-flow pushes the rotation of dust suction filter cylinder, therefore air-flow enters dust suction
It is filtered in filter cylinder, dust suction filter cylinder adsorption and filtering carbon particle, the gas after cleaning is discharged by discharge pipe, in dust suction filter cylinder
In rotation process, the dust brush for being placed in bottom is cleared up and is collected into dust bag.Intelligent control module presets control
Program illustrates that the device blocks, offgas duct is inevitable when wind pressure detector detects that discharge pipe wind pressure is less than preset value (threshold value)
It feels suffocated, there are tail gas reflux to the risk of engine damage engine, and intelligent control module opens flap valve at this time, tail gas
It is directly discharged in atmosphere from from flap valve, meanwhile, intelligent control module starting blower is reversely dried, and air-flow is driven by flabellum
Filter cylinder rotation (flabellum be selectivity installation, should be adjusted when flabellum is not installed partition tilt angle and fan airflow flow with
Ensure to drive filter cylinder rotation), the wind of blowback passes through after dust suction filter cylinder containing impurity such as more dust, air-flow from dust bag outside
Dust is driven to enter in dust bag when row.Dust bag prevents dust to flow to atmosphere, but clean gas is allowed to pass through.Check valve
Prevention returns the air-flow blown and passes through offgas duct reverse irrigation damage engine.Such design can make dust suction filter cylinder carry out self-regeneration, effectively
Ground extends the service life of dust suction filter cylinder.Intelligent control module can set the time that blower is reversely dried, when reversed blowing
Reach setting duration after, intelligent control module is re-closing off flap valve, while starting blower forward direction exhausting, if wind pressure detector according to
So detect that wind pressure lower than threshold value, then steps be repeated alternatively until that the device can be normally carried out tail gas clean-up.It connects air hose and inhales
Connection between dirt filter cylinder, blower is to be tightly connected, and guarantees that it is de- to be able to drive the dust on dust suction filter cylinder for air-flow when blower blowback
Enter dust bag from rear.
Although reference be made herein to the utility model is described in the explanatory embodiment of the utility model, however, it should
Understand, those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will be fallen
Within scope and spirit disclosed in the present application.It more specifically, can be to theme group in range disclosed in the present application
The building block and/or layout for closing layout carry out a variety of variations and modifications.In addition to the modification carried out to building block and/or layout
Outer with improving, to those skilled in the art, other purposes also will be apparent.