CN107875740A - A kind of DPF cleaning plants based on gas explosion - Google Patents
A kind of DPF cleaning plants based on gas explosion Download PDFInfo
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- CN107875740A CN107875740A CN201711071424.7A CN201711071424A CN107875740A CN 107875740 A CN107875740 A CN 107875740A CN 201711071424 A CN201711071424 A CN 201711071424A CN 107875740 A CN107875740 A CN 107875740A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 116
- 238000004880 explosion Methods 0.000 title claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims description 35
- 238000009434 installation Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 98
- 239000007788 liquid Substances 0.000 description 55
- 239000012530 fluid Substances 0.000 description 48
- 239000013618 particulate matter Substances 0.000 description 39
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- 238000000034 method Methods 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000001914 filtration Methods 0.000 description 8
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- 239000007924 injection Substances 0.000 description 7
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
- B01D41/04—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids of rigid self-supporting filtering material
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
A kind of DPF cleaning plants based on gas explosion, including container and for sealing the lid of the container, it is characterized in that, the DPF may be housed in the container and the outer wall of the DPF is removably tightly connected the container inner wall, the container contents are received when having DPF, the container is separated into first chamber and second chamber by DPF, and the container is connected to high-pressure air source by intake valve, and the second chamber can be connected by gas explosion quck-opening valve with air.
Description
Technical field
The present invention relates to automotive field, particularly a kind of DPF cleaning plants based on gas explosion.
Background technology
DPF, Diesel Particulate Filter diesel particulate filters refer in diesel engine truck exhaust system,
The device of particulate matter (PM) in exhaust, abbreviation DPF are reduced by filtering.DPF can be purified effectively 70% in exhaust ---
90% particle, it is that purification diesel engine particulate matter is most effective, one of most straightforward approach.Realize commercialization in the world.
DPF is arranged in Diesel Engine Exhaust Pipe, and when exhaust passes through, PM is by filter core adsorption filtration.But with the increase of working time, filter core
Internal PM increases, cause exhaust back pressure to raise, will influence the economy of the dynamic property of diesel engine.The PM removed on filter core is referred to as
DPF regeneration.The ultimate challenge that DPF faces is exactly regeneration issues.
Refer to Fig. 1 notification numbers CN1920267B and disclose a kind of DPF diesel particulate filters 40 and caught for integral particulate
Collection, and including alternate enclosed slot/passage 50 and enclosed slot/passage 52.Waste gas, such as those waste gas as caused by engine,
Into accumulating the end seal closed walk 50 of particulate matter 54 and be spilt out from open channel 52.Stopple 56 is used for sealing passage
50,52 terminal.The wall 58 of diesel particulate filter 40 is preferentially made up of the cellular wall of porous ceramics of strip material.Cigarette ash
Particle 59 is flowed into diesel particulate filter and cut there poly-.There is countless small ducts in the DPF of this structure, with
DPF's can be blocked using these small ducts by PM, and part PM can have been started exhaust gas oxidation to burn in vehicle traveling, and with
Method as the increase of DPF working times is increasingly difficult to regenerate, and DPF is blocked serious and caused tail gas not discharge, at this moment
A kind of device that can clear up DPF just is needed, the small duct dredged in DPF.
The content of the invention
It is an object of the present invention to provide a kind of DPF cleaning plants can dredge the duct in DPF.
In order to achieve the above-mentioned advantages, the present invention provides a kind of DPF cleaning plants based on gas explosion, including container and for sealing
State the lid of container, it is characterised in that the DPF may be housed in the container and the outer wall of the DPF is removably close
Envelope connects the container inner wall, and the container contents are received when having DPF, and the container is separated into first chamber and the second chamber by DPF
Room, the container are connected to high-pressure air source by intake valve, and the second chamber can be connected by gas explosion quck-opening valve with air.
Container contents are received when having DPF in the present invention, and container is separated into first chamber and second chamber by DPF, and container leads to
Cross intake valve and be connected to high-pressure air source, second chamber can be connected by gas explosion quck-opening valve with air, and DPF can be dredged by gas explosion
Interior duct.
Brief description of the drawings
Fig. 1 show existing DPF structural representation.
Fig. 2 show the structural representation of the DPF cleaning plants of first embodiment of the invention.
Fig. 3 show the structural representation of the second direction of Fig. 2 DPF cleaning plants.
Fig. 4 show the structural representation of the third direction of Fig. 2 DPF cleaning plants.
Fig. 5 show the explosive view of Fig. 2 DPF cleaning plants.
Fig. 6 show the sectional view of Fig. 2 DPF cleaning plants.
Fig. 7 show the partial enlarged drawing at Fig. 3 A.
Fig. 8 show the partial enlarged drawing at Fig. 4 B.
Fig. 9 show the partial enlarged drawing at Fig. 6 C.
Figure 10 show the structural representation of the DPF mounting brackets of Fig. 2 DPF cleaning plants.
Figure 11 show the explosive view of Figure 10 DPF mounting brackets.
Figure 12 show the partial enlarged drawing at Fig. 6 D.
Figure 13 show the structural representation of the supersonic generator of Fig. 5 DPF cleaning plants.
Figure 14 show the explosive view of Figure 13 supersonic generator.
Figure 15 show the sectional view of Figure 13 supersonic generator.
Figure 16 show the structural representation of the gas explosion quck-opening valve of Fig. 2 DPF cleaning plants.
Figure 17 show the explosive view of Figure 13 gas explosion quck-opening valve.
Figure 18 show the sectional view of Figure 13 gas explosion quck-opening valve.
Figure 19 show the partial enlarged drawing at Figure 18 E.
Figure 20 show the structural representation of the dedusting muffler of Fig. 2 DPF cleaning plants.
Figure 21 show the explosive view of Figure 13 dedusting muffler.
Figure 22 show the sectional view of Figure 13 dedusting muffler.
Figure 23 show the annexation figure of Fig. 2 DPF cleaning plants.
Figure 24 show the structural representation of the DPF cleaning plants based on gas explosion of second embodiment of the invention.
Figure 25 show the structural representation of the DPF cleaning plants based on ultrasonic wave cleaning of third embodiment of the invention.
Figure 26 show the structural representation of the DPF mounting brackets of fourth embodiment of the invention.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to proposing embodiment, structure, feature and its effect according to the present invention, describe in detail as after.
Fig. 2-Fig. 5 is referred to, the DPF cleaning plants of first embodiment of the invention, for clearing up DPF100, the DPF is cleared up
Device includes container 1, DPF mounting brackets 2, supersonic generator 3, filter 4, pump 5, cleaning liquid source 6, gas explosion quck-opening valve 7 and removed
Dirt muffler 8, wherein, DPF mounting brackets 2 and supersonic generator 3 are contained in container 1, container 1, gas explosion quck-opening valve 7 and are removed
Dirt muffler 8 is contacted successively；Container 1, filter 4, cleaning liquid source 6, pump 5, container 1 are contacted successively, in addition, the liquid outlet of pump 5
It is connected with the liquid outlet of filter 4.
Fig. 6 is referred to, specific container 1 is located at the top of cleaning liquid source 6, but is not limited.Container 1 is preferably using circle
Tubular structure.Container 1 is separated into first chamber 1a and second chamber 1b by DPF.The opening of container 1, which is provided with, is used for sealing container 1
Lid 11 and locking closure device 12 and device for releasing closures 13, wherein lid 11 and container 1 be hinged.Lid 11 is located at first chamber 1a's
One end.
Fig. 7 is referred to, locking closure device 12 includes first support 121, second support 122, locking closure telescoping mechanism 123, locking closure and stretched
The both ends of contracting mechanism 123 are hinged with first support 121, the end of second support 122 respectively, part in first and second support 121,122
Not be hinged with container 1, first and second support 121,122 is respectively fixed with for limiting lid backwards to the end of locking closure telescoping mechanism 123
The lock 120 that son 11 is opened.Further lock 120, which is nearby provided with, to be used to detect first that whether lock is engaged lid 11
Put sensor, lock 120 be nearby additionally provided with for detect lock whether the second place sensor being kept completely separate with lid 11.
When locking closure telescoping mechanism 123 extends completely, first and second support 121,122 makes lock 120 against lid by rotating
Son 11 or container 1, while latch 120 limitation lids 11 and open.When locking closure telescoping mechanism 123 shrinks completely, first and second support
121,122 release the limitation of 120 pairs of lids 11 of lock by rotating.
Lock 120 is that " u "-shaped section is rod-like structure, and outer peripheral face of the container 1 close to the edge of lid 11 is fixed with and locked
Convex stupefied the 14 of the cooperation of button 120.First and second support 121,122 is respectively fixed with limiting section 1201, when lock 120 is released to lid
During 11 limitation, limiting section 1201 limits first and second support 121,122 corresponding with limiting section 1201 and rotated against container 1.
Fig. 8 is referred to, device for releasing closures 13 includes the lever 131 being connected with lid 11 and telescoping mechanism 132 of uncapping, lever
131 other end and telescoping mechanism 132 of uncapping are be hinged, and the other end and container 1 for telescoping mechanism 132 of uncapping are be hinged.Uncap flexible
Mechanism 132 and locking closure telescoping mechanism 123 can use pneumatic cylinder, hydraulic cylinder or electric cylinder.Uncap telescoping mechanism 132 and locking closure
Telescoping mechanism 123 all electrically connects with controller (not shown).Lid 11 or container 1 are externally provided with for the attached of the opening of detection container 1
It is near whether the infrared ray sensor (not shown) of someone, infrared ray sensor and controller electrical connection.Controller also fills with alarm
Put electrical connection.Lid 11, which is nearby provided with, to be used to detect the 3rd position sensor whether lid 11 covers container 1, near lid 11
Provided with opening the 4th position sensor in place for detecting lid 11.
As someone near infrared ray sensor detects vessel port, at this moment open lid and be possible to hurt people
, therefore controller also will not send solution even if order of uncapping is received to locking closure telescoping mechanism 123, telescoping mechanism 132 of uncapping
Lock or signal of uncapping, meanwhile, controller sends signal to warning device, warning device is sent sound and/or light to remind personnel
Leave near lid, when there be nobody nearby for lid, controller first controls locking closure telescoping mechanism 123 to unlock, then control uncap it is flexible
Lid is opened by mechanism 132.Further controller can with the liquid level sensor in container, baroceptor, hydrostatic sensor,
When controller detects the gas for having water or superatmospheric in container, controller even if receive order of uncapping also will not be to
Locking closure telescoping mechanism 123, telescoping mechanism 132 of uncapping send unblock or letter of uncapping, while controller judge latch whether with lid
Separation, it is to control telescoping mechanism 132 of uncapping to uncap, otherwise send signal alarm to warning device.Controller control, which is uncapped, stretches
After contracting mechanism 132 uncaps, controller judges whether lid 11 is opened in place, otherwise alarms.
When controller uncap telescoping mechanism 132 close lid after, controller first judges whether lid 11 covers container 1, be then to
Locking closure telescoping mechanism 123 sends locking closure signal, otherwise alarms.After locking closure telescoping mechanism 123 sends locking closure signal, controller judges
Whether lock is engaged lid 11, otherwise alarms.
Refer to Fig. 9, container 1 is towards offering an annular groove corresponding with the edge of lid 11 on the end face of lid 11
15, sealing ring 16 is accommodated in annular groove 15；Being formed between the bottom of sealing ring 16 and annular groove 15 can be with high-pressure air source
The gas passage 160 of connection；Accommodate in the gas passage 160 it is useful in the gases at high pressure of crush seal ring 16 when, sealing ring 16
Seal lid 11 and the end face of container 1.Preferably there is seal control valve 161, gas storage between gas passage 160 and high-pressure air source
Tank 162, check valve 163.Baroceptor is provided with air accumulator 162.Seal control valve 161 and baroceptor are and controller
Electrical connection.The purpose for setting air accumulator 162 is that high-pressure air source is first filled with high pressure gas into air accumulator through check valve, in gas passage
High pressure gas sealing ring can be pressed to the sealing that lid completes container and lid, subsequent high-pressure air source is filled with high pressure into container again
Gas.
Controller is for when air pressure is more than setting value in air accumulator 162, control seal control valve 161 to be opened to gas
Injection high pressure gas in passage 160, makes sealing ring 16 be moved towards the direction of lid 11, hermetically connects lid 11 and container 1.Sealing
One end of the close lid 11 of ring 16 has the first sealing backwards to the extension of the center of sealing ring 16 of a pair of one-tenth " V " shape arrangements stupefied
161, the first sealing stupefied 161 is used to increase container and lid backwards to the center deployment of sealing ring 161 when sealing ring extrudes lid 11
Sealing area, while close to container inside first sealing stupefied 161, due to receiving the mutual extruding of lid 11 and container 1
Power, the first sealing stupefied 161 are not easy by the high pressure gas crimp in container 1, to form stable seal face.Sealing ring 16
There is the second sealing stupefied 162 towards recess sidewall extension of a pair of one-tenth " V " shape arrangements, the second sealing backwards to one end of lid 11
Stupefied 162 for when accommodating gases at high pressure in gas passage 160, extruding the side wall of annular groove 15, and then is tightly connected ring
Connected in star side wall, the outer peripheral face of container 1 are fixed with convex annular stupefied 14 close to the edge of lid 11, and annular groove 15 is located at convex stupefied 14
On, convex stupefied 14 offer the air admission hole connected with gas passage 160 backwards to the one side of lid 11.Lid 11 holds when covering container 1
There is gap between device 1 and lid 11, be also more prone to make lid parallel with sealing ring, annular groove, such sealing ring 16 is in gas
When there are in body passage 160 gases at high pressure can with fully deformed, make the first sealing it is stupefied, second seal it is stupefied uniform under gas pressure
Extruding lid or annular groove.Sealing ring 16 is made up of rubber.Annular groove side wall close to annular groove bottom width by
Gradually to the reduction in the middle part of annular groove.
Preferably, container 1 also include being used to gather in first chamber 1a and/or in second chamber 1b air pressure air pressure transmission
Sensor.
Refer to Figure 10,11, DPF mounting brackets 2 include retaining mechanism 21, mounting bracket bottom plate 22.Retaining mechanism 21 include with
Connecting rod 211 that mounting bracket bottom plate 22 is connected, reaction beam 212, depression bar 213, contact plate 214, positioned at DPF and mounting bracket bottom
Sealing adjustable plate 215 between plate 22.Mounting bracket bottom plate 22 includes plate body 221, ring-type frame 222, and plate body 221 has and DPF
Hole link through hole.
Reaction beam 212 is connected with connecting rod 211, and reaction beam 212 and depression bar 213 are threadedly coupled, and depression bar 213 is used to lead to
The extruding of extruding contact plate 214 DPF is crossed hermetically to be connected with mounting bracket bottom plate 22.The quantity of connecting rod 211 is a pair, a pair of connections
Bar 211 is symmetrical arranged around DPF.Connecting rod 211 is cylindrical structural, and reaction beam 212, which offers, accommodates the logical of connecting rod 211
Hole, reaction beam 212 can slide along the length direction of connecting rod 211.Reaction beam 212 is connected with holding section 2120, the He of holding section 2120
Mating connection portion 2110, which coordinates, to be removably connected, and connecting rod 211 is alongst provided with multiple mating connection portions
2110.Mating connection portion 2110 is the annular recess that is opened up around the outer peripheral face of connecting rod 211, in the present embodiment, holding section 2120
For the screw rod with that can be contained in annular recess, screw rod is threadedly coupled with reaction beam 212, and retaining mechanism 21 can extrude DPF shells
101st, being connected for the sealing of ring-type frame 222 of adjustable plate 215 and mounting bracket bottom plate 22 is sealed.
One effect of sealing adjustable plate 215 is to be tightly connected DPF outer walls or DPF shells and bottom plate 22, and another is,
It is readily replaceable due to not being fixedly connected with bottom plate 22 to seal adjustable plate 215, can be easy when DPF size changes
Replacing sealing adjustable plate 215 to adapt to DPF.
Figure 12 is referred to, ring-type frame 222 is connected with the inner wall sealing of container 1, retaining mechanism 21 and mounting bracket bottom
Plate 22 is connected, and certain retaining mechanism 21 can also be connected with container 1.Retaining mechanism 21 is used to extrude DPF and installation
What frame bottom plate 22 sealed is connected, and retaining mechanism 21 is connected with mounting bracket bottom plate 22, and the inwall of container 1 is fixed with and installed
The sealing ring 220 that frame bottom plate 22 coordinates, mounting bracket bottom plate 22 are contained in the through hole and the fitted seal of sealing ring 220 of sealing ring 220
Ground is connected, and the through hole of sealing ring 220 is gradually reduced from one end close to DPF to the other end.Reaction beam 212 is fixedly connected with
Leg 2121；Leg 2121 is used to contact with the inwall of container 1 when DPF mounting brackets 2 are contained in container 1, to keep mounting bracket
The position of bottom plate 22 and sealing ring 220.
Refer to Figure 13,14,15, supersonic generator 3, including shake head mounting box 31 and be fixed in shake head mounting box 31
Multiple ultrasonic waves shake first 32 (ultrasonic oscillators), ultrasonic wave shake first 32 is contained in shake head mounting box 31.Shake head mounting box 31
First 32 are shaken including installation box plate 311, positioned at ultrasonic wave backwards to the mounting box top plate 312 for installing the side of box plate 311 and is connected
Meet the mounting box connection wall 313 of installation box plate 311 and mounting box top plate 312, installation box plate 311, the and of mounting box top plate 312
Mounting box connection wall 313 is made up of stainless steel materials.Mounting box top plate 312 is fixed with the electricity for shaking first 32 for drawing ultrasonic wave
The binding post 314 of source line, binding post 314 pass through mounting box top plate 312.Mounting box top plate 312 offers oil filler point and row
Stomata, oil filler point and steam vent are blocked by oil filler plug 315, venting plug 316.Oil filler point and steam vent can also be opened in bottom plate or
In mounting box connection wall.Ultrasonic wave shakes first 32 and is fixed on by sound conduction gel on the installation box plate 311 of shake head mounting box 31.
Shake head mounting box 31 offers the regulation mouth 30 sealed by flexible pressure balance plate 33.Pressure balance plate
33 are made up of rubber.Regulation mouth 30 is opened on mounting box top plate 312, and pressure balance plate 33 is used to balance in shake head mounting box 31
Outer pressure, prevent installation box plate 311 has in container when gas pressure or liquid pressure from deforming, ultrasound can be protected
(sound conduction gel is more crisp material, if the installation deformation of box plate 311 will for ripple shake first 32 and the connection of installation box plate 311
Ultrasonic wave shake head is caused to have very big loss).The outside of pressure balance plate 33 and the pressure communication of second chamber, shake head mounting box
Incompressible fluid is filled with 31, incompressible fluid is preferably adopted as the fluid of insulation, and incompressible fluid is more highly preferred to
It is adopted as silicone oil.Fluid is in flow process, the negligible flowing of its variable density, referred to as potential flows.In this hair
Bright other embodiment regulation mouth 30 can also be opened in installation box plate 311 or mounting box connection wall 313.
Supersonic generator 3 can utilize cavitation, acceleration effect and direct flow effect of the ultrasonic wave in cleaning fluid,
Cleaning fluid and PM directly, are indirectly acted on, the PM in DPF ducts is disperseed, emulsified, is peeled off and then dredges DPF ducts.
Cavitation, when the Ultrasonic Radiation of strength is into liquid, cleaning fluid is centered on static pressure (standard pressure)
It is changed, when below pressure to zero air pressure, the oxygen dissolved in a liquid can form micro-bubble core, and then produce countless near
The empty tiny holes (hole) of likelihood.The tiny holes during normal pressure of ultrasonic wave, broken, this hair is squeezed in adiabatic compression state
It is raw to squeeze the brute force attack ripple of broken moment, it can directly destroy pollutant and be allowed to be dispersed in liquid, form scavenging mechanism.In experiment
The cleaning action of this strength, countless apertures can be cut out to aluminium foil within tens of seconds.Cavitation makes liquid locally occur
HTHP (1000 air pressure, 5500 DEG C), then through stirring caused by vibration, promote the multiplication chemically or physically acted on, liquid is not
Disconnected ground emulsion dispersion, further promote the speed of chemical reaction.
Acceleration effect, cleaning liquid vibrate through Ultrasonic Radiation, fluid molecule, and this vibration acceleration is gravity
The decades of times of acceleration can peel off cleaning to hundreds times, by this strength acceleration to being carried out by PM surface.
Direct flow effect, the phenomenon that ultrasonic wave produces flowing along sonic propagation direction in a liquid are referred to as direct flow.Pass through
This direct flow is stirred micro- oil foulant on cleaned material surface, and the cleaning fluid of fouled surfaces also produces convection current, dissolves the molten of PM
Solution liquid mixes with new liquid, makes enhanced dissolution rate, the carrying to PM plays very big effect.
Filter 4 preferably uses film filter, and the core original paper of film filter is filter membrane, and this is that one kind is prepared and held in micropore
Hold in the palm the film for being covered with more micro-pore on layer (supporter).The material for making filter membrane has a lot, is divided into organic film (in such as polysulfones
Empty fiber membrane) and inoranic membrane.As filter elements, it is structurally characterized in that filtering layer is very thin to filter membrane, thus its filtration mechanism is main
It is to screen out effect, adsorption effect very little.The filtering accuracy of film filter is higher, and size controlling is more stable, and backwashes and hold
Easy restorability.For general solid suspension, it is trapped and (screens out) on the surface of film more than the PM of fenestra, due to conduct
The film of filtering layer is very thin, and can not to these PM produce absorption, although supporting layer is relatively thick, its hole relative to fenestra compared with
Greatly, it is not enough to produce absorption.Effect is so only screened out, so being easy to backwash removing.Certain filter 4 can also select film
The filter of the outer type of filter.
The effect of pump 5 is that cleaning fluid is injected into container.
Cleaning liquid source 6 is the water tank that can accommodate cleaning fluid.Cleaning liquid source 6, which is communicated with the breather pipe 61 upwardly extended, (please join
See Fig. 3), so when cleaning liquid source 6 supplements or discharges cleaning liquid source 6, breather pipe 61 can be connected inside and outside cleaning liquid source 6, prevented
Only cleaning liquid source 6 is deformed or shaken.
Figure 16-18 are referred to, gas explosion quck-opening valve 7 specifically includes valve seat 71 and flap 72, and flap 72 includes first piston
721st, second piston 722 and the first piston 721 that is connected, the connecting pole 723 of second piston 722；Valve seat 71 includes accommodating the
First valve pocket 71a of one piston 721, the second valve pocket 71b for accommodating second piston 722 and separation the first valve pocket 71a and second
Valve pocket 71b dividing plate 711, the first valve pocket 71a have exhaust outlet 712a and can be with the air inlets of the fitted seal of first piston 721
711a, connecting pole 723 pass through dividing plate 711, and connecting pole 723 and dividing plate 711 seal against each other, and second piston 722 is by the second valve pocket 71b
It is separated into valve opening chamber 711b and closes valve pocket 712b, valve opening chamber 711b is between valve pocket 712b and the first valve pocket 71a is closed, valve opening chamber
711b has valve opening mouth 7110, and closing valve pocket 712b has pass valve port 7120.Air inlet 711a is used for and accommodated the appearance of high pressure gas
Device 1 connects.Exhaust outlet 712a is used for and atmosphere.Valve port 7120 connects high pressure gas, valve opening mouth 7110 connects air gas explosion and opened soon for pass
Valve 7 is closed, otherwise the moment under air inlet 711a extruding of gas explosion quck-opening valve 7 opens.
Valve opening mouth 7110 is located at valve opening chamber 711b close to the end of dividing plate 711, and it is remote positioned at valve pocket 712b is closed to close valve port 7120
From the end of dividing plate 711.Valve opening mouth 7110 is used to close valve port 7120 by valve and high-pressure air source, atmosphere respectively and be used to divide
Do not pass through valve and high-pressure air source, atmosphere.Air inlet 711a is provided with the sealing 73 of ring-type.First piston 721 and sealing
The surface of 73 contacts is sphere or inclined-plane, and first piston 721 coordinates closure air inlet 711a with sealing 73.
Figure 19 is referred to, first piston 721 contacts with the face of sealing 73 or linear contact lay coordinates closure air inlet 711a.First
Piston 721 is the taper type structure being gradually reduced backwards to the section of second piston 722, and sealing 73 is close to the end of second piston 722
Portion is the opening that the sealing 73 that becomes larger of section has taper type cavity, be open close to the lateral edges of second piston 722 1 with
During 721 linear contact lay of first piston, there is gap between opposite side and second piston 722, even if at this moment in order to ensure first piston
721 with sealing 73 not absolute parallel (being limited by machining accuracy) in the case of sealing 73 being capable of fully deformed and first piston
Relatively good sealing effectiveness is realized in 721 contacts.
The area of further second piston 722 is more than the internal diameter of sealing 73, so when pass valve pocket and pressure in container
In the case of identical, the gas pressure that second piston is subject to can be more preferable more than the pressure seal effect that first piston is subject to.
The effect of gas explosion quck-opening valve be filled with container setting pressure gas after moment the pressure in container is down to
Atmospheric pressure, the gas in the PM gaps of DPF ducts expand suddenly, and gas explosion occurs, and make the PM in DPF ducts broken and peel off, together
When be tightly connected due to DPF outer wall and container, the pressure in second chamber can reduce moment, the high pressure gas meeting in first chamber
High velocity air is formed in DPF ducts, high velocity air can carry out the PM in DPF ducts, while the PM that high velocity air carries
The PM remained in DPF ducts is produced and collides, extrude, rubbing, further broken or stripping PM.The PM that gas explosion separates is through removing
Capture is intercepted by dedusting muffler 8 during dirt muffler 8.
Refer to Figure 20-21, dedusting muffler 8 include lid 81, outer layer cloth bag 82, internal layer cloth bag 83, in the and of lid 81
The supporting sleeve 85 that cloth bag connection wall 84 and cloth bag connection wall between outer layer cloth bag 82 are detachably connected, lid 81 seals outer
The layer opening of cloth bag 82 forms cavity 80, and internal layer cloth bag 83 is located in cavity 80, and outer layer cloth bag 82 and cloth bag connection wall 84 are hermetically
It is detachably connected.Lid 81 offers the gas vent 811 being tightly connected with the opening of internal layer cloth bag 83, and cavity 80 is used for and gas explosion
7 connections of quck-opening valve.Gas permeation outer layer cloth bag 82, internal layer cloth bag 83 and atmosphere in cavity 80.Cloth bag connection wall 84
Offer and 7 gas accesses 841 being connected of gas explosion quck-opening valve.Outer layer is accommodated respectively in outer layer cloth bag 82, internal layer cloth bag 83
Support cages 821, internal layer support cages 831, outer layer support cages 821, internal layer support cages 831, be respectively used to prevent outer layer cloth bag 82,
Internal layer cloth bag 83 deforms, and ensures the volume of cavity 80.Lid 81 is fixed with the connecting tube through lid 81 as gas vent
811, connecting tube is connected with internal layer cloth bag 83.Internal layer cloth bag 83 and outer layer cloth bag 82 are cylindrical shape bag shaped structure.Outer cloth
Bag 82, internal layer cloth bag 83 are made up of Water-proof breathable fabric.The gas of gas explosion can absorb making an uproar for gas explosion when passing through dedusting muffler
Sound, reach the technique effect of noise reduction.
Supporting sleeve 85 offers multiple through holes.Internal layer cloth bag 83 and outer layer cloth bag 82 are used to prevent water and PM to be discharged into greatly
Gas.
Figure 23 is referred to, the specific annexation on cleaning fluid part of DPF cleaning plants is：First chamber 1a, the
Two chamber 1b are connected by liquid feed valve FA1, liquid feed valve FA2 and pump 5, cleaning liquid source inlet valve FE, cleaning liquid source 6 respectively, and first
Chamber 1a, second chamber 1b are connected by tapping valve FB1, tapping valve FB2 and filter 4 and cleaning liquid source 6 respectively, and pump 5 goes out
Liquid mouth is connected through backwash valve FC with the liquid outlet of filter 4, and the inlet of filter 4 is connected with the waste liquid with waist valve FD
Delivery pipe.
Cleaning liquid source inlet valve FE is opened under normal operation, and waist valve FD, backwash valve FC are closed, and filter 4 is used
Come from the PM of container 1 in interception or capture.Liquid feed valve FA1, liquid feed valve FA2, tapping valve FB1, tapping valve are closed by opening fire
FB2, pump 5, supersonic generator 3, there is a variety of methods to clear up DPF.
When the screen pack in filter 4 or filter membrane block more serious, waist valve FD, backwash valve can be opened
FC, cleaning liquid source inlet valve FE, tapping valve FB1, tapping valve FB2 are closed, filter 4 is carried out in backwash dredging filter 4
Filter membrane.
Preferable first chamber 1a and/or second chamber 1b is connected with the container venting tube upwardly extended by air bleeding valve,
To guarantee to inject cleaning fluid into container.Air bleeding valve can be used as using gas explosion quck-opening valve.
Liquid level sensor is provided with preferable first chamber 1a and/or second chamber 1b and/or cleaning liquid source 6, so may be used
To know the cleaning fluid liquid level in first chamber 1a and/or second chamber 1b and/or cleaning liquid source 6.
It should be noted that cleaning liquid source inlet valve FE is not required to set, it is not provided with cleaning liquid source inlet valve FE and only can
The cleaning fluid pressure into filter 6 is caused to have loss.
In one embodiment of the invention, only second chamber 1b is directly connected or only through tapping valve FB2 with filter 4
One chamber 1a is directly connected through tapping valve FB1 with filter 4.
In one embodiment of the invention, only first chamber 1a is directly connected or only the second chamber through liquid feed valve FA1 with pump
Room 1b is directly connected through liquid feed valve FB2 with pump.
The specific annexation on gas part of DPF cleaning plants is：Container 1, gas explosion quck-opening valve 7, dedusting noise reduction
Device 8, air are contacted successively.Container 1 is additionally operable to connect with high-pressure air source, and high-pressure air source connection can be steam boiler, air pressure
Contracting machine or compressed air reservoir, high pressure gas are the gaseous mixture of air, steam or steam and air.
There is intake valve between first chamber 1a and/or second chamber 1b and high-pressure air source.Preferable container 1, gas explosion are fast
Quieter material layer or sound-absorbing material layer can be set outside valve opening 7 and the pipeline being attached thereto.
In one embodiment of the invention, gas explosion quck-opening valve 7 is connected by deduster with air.Gas explosion quck-opening valve 7 is logical
Muffler is crossed to be connected with air.
Figure 24 is referred to, ultrasonic wave hair is not provided with the DPF cleaning plants based on gas explosion of second embodiment of the invention
Raw device, filter, pump, container 1 is be hinged outside to be fixed with lock 120 ', has between lock 120 ' and container 1 and is used to keep lock to lean on
The torsion spring that nearly container 1 is open, the upper surface of lock is inclined-plane, has sealing structure, the outer wall at DPF both ends between lid 11 and container
Also there is sealing structure between container 1, container 1 is set by vertical direction, the removing dust device of gas explosion quck-opening valve 7 and atmosphere.
Figure 25 is referred to, gas is not provided with the DPF cleaning plants based on ultrasonic wave cleaning of third embodiment of the invention
Quick-fried quick opening valve and dedusting muffler, pump include container 1 and lid 11, and wherein lid 11 is located at the middle part of container 1.Container 1 is horizontal
Direction sets lid 11 be hinged with container 1, be hinged outside container 1 to be fixed with lock 120 ', has between lock 120 ' and container 1 and is used for
The torsion spring for keeping lock to be open close to container 1, the upper surface of lock is inclined-plane, has sealing structure, DPF between lid 11 and container
Also there is sealing structure between the outer wall and container 1 at both ends, can not have shell outside DPF, cleaning liquid source 6 there can be pressure originally
Water, certain cleaning liquid source can also be river.Filter 4 is selected from active carbon filter, and the cleaning fluid after filter 4 filters can be with
Plumbing drain is discharged into, can also be discharged into when the cleaning fluid after filtering is completely pollution-free in rainwater pipeline or river, lake.
Figure 26 is referred to, holding section 2120 is the card for the arc that can be partially received in annular recess in other embodiments
Button, holding section 2120 and reaction beam.
The DPF method for cleaning based on ultrasonic wave cleaning of first embodiment of the invention, comprises the following steps：
A1, DPF is placed in the container of sealing, wherein, DPF outer wall is tightly connected container inner wall, and container is separated by DPF
Into first chamber and second chamber；
A2, cleaning fluid is injected into container, until first chamber or second chamber cleaning liquid inside reach setting liquid level or set
Determine hydraulic pressure, cleaning fluid is injected into container, can cleaning fluid be injected into first chamber or simultaneously to first chamber and second
Injection cleaning fluid in chamber；
A3, supersonic generator is opened, clean DPF；
A4, supersonic generator is closed, discharge the cleaning fluid in first and second chamber, it is specific to discharge in first and second chamber
Cleaning fluid can first discharge the cleaning fluid in second chamber, the cleaning fluid being then exhausted from first chamber or discharge the simultaneously
First, the cleaning fluid in two chambers；
A5, container is opened, take out the DPF after cleaning.
Preferably after step A3, it is further comprising the steps of before step A4：A31, keep supersonic generator 3 to open, hold
Cleaning fluid in continuous discharge second chamber 1b, while cleaning fluid is persistently injected into first chamber.
It is preferred that step A31 include second chamber discharge cleaning fluid inject after filtering in first chamber 1a.
It is preferred that step A4 after also include：Repeated several times step A2, A3, A4.
In the present embodiment when supersonic generator 3 is opened, the cleaning fluid in second chamber 1b is persistently discharged, while to
Persistently inject cleaning fluid in first chamber 1a, the wash liquid stream in DPF ducts is to discharging after second chamber, and wash liquid stream is to second
The process one side formation current carrying of chamber will be suspended in PM in DPF ducts and take out of, on the other hand be filled into DPF ducts clear
Clean cleaning fluid forms more preferable cleaning performance.
The DPF method for cleaning based on gas explosion of second embodiment of the invention, comprises the following steps：
B1, DPF is placed in the container 1 of sealing, DPF outer wall is tightly connected the inwall of container 1, and container 1 is separated into by DPF
First chamber 1a and second chamber 1b；
B2, high pressure gas is injected into container, until first and second chamber room pressure reaches setting atmospheric pressure value；
B3, second chamber is quickly opened, make to be attached to the PM in DPF and gas explosion disengaging DPF occurs, produced after preferable gas explosion
PM gaseous mixtures removing dust processing after be discharged into air, gas explosion process is handled through noise reduction；
B4, container is opened, take out DPF.
It is preferred that step B3, B4 between also include：Repeated several times step B2, B3.
High pressure gas is injected into container can be while inject high pressure gas into first and second chamber；Injected into container 1 high
Calming the anger preferably, injection high pressure gas is so when DPF blockage ratios are more serious using into first chamber, the gases at high pressure of first chamber
Air-flow can be formed during second chamber by, which flowing to, carries PM in the DPF ducts of part, be more highly preferred to from first to first chamber
Injection gases at high pressure in 1a, the interior injection gases at high pressure of backward second chamber, the gases at high pressure of first chamber flow to second chamber mistake
Cheng Zhonghui forms air-flow and carries PM in the DPF ducts of part when first and second chamber pressure difference is bigger, and effect is good, first,
When the pressure ratio of two chambers is smaller at this moment the rate of pressure rise of second chamber slowly injects gases at high pressure energy into second chamber
Enough shorten the time, while ensure the pressure of second chamber.
In the present embodiment, gas explosion process is discharged into after noise reduction processing and gas explosion after caused PM gaseous mixtures removing dust processing
Air, has that sound is small, free of contamination advantage.
The DPF method for cleaning of third embodiment of the invention, comprises the following steps：
C1, DPF is placed in the container of sealing, wherein, DPF outer wall is tightly connected container inner wall, and container is separated by DPF
Into first chamber and second chamber；
C2, cleaning fluid is injected into container, until first chamber or second chamber cleaning liquid inside reach setting liquid level or set
Determine hydraulic pressure；Cleaning fluid is penetrated into DPF duct in this course, is contacted with the PM in duct, and a part of PM can be with duct point
From into first chamber or second chamber.
C3, supersonic generator is opened, clean DPF；
C4, supersonic generator is closed, discharge the cleaning fluid in first and second chamber；
C5, injected into container, until first and second chamber room pressure reaches setting atmospheric pressure value；
C6, second chamber is quickly opened, make to be attached to the PM in DPF and gas explosion disengaging DPF occurs；
C7, container is opened, take out DPF.
Due to quick-fried in the discharge laggard promoting the circulation of qi of cleaning fluid in the present embodiment, containing being largely vaporized in high pressure gas during gas explosion
Cleaning fluid, and the density ratio air of cleaning fluid is big, can the extraordinary PM by residual peel off and taken out of further from DPF ducts
DPF ducts are dredged, while cleaning fluid is gasified and taken out of using the gas of high speed injection, dry the DPF after cleaning.
The DPF method for cleaning of fourth embodiment of the invention, comprises the following steps：
D1, DPF is placed in the container of sealing, wherein, DPF outer wall is tightly connected container inner wall, and container is separated by DPF
Into first chamber and second chamber；
D2, high pressure gas is injected into container, until first and second chamber room pressure reaches setting atmospheric pressure value, such as 0.6Mpa-
1.0Mpa；
D3, second chamber is quickly opened, make to be attached to the PM in DPF and gas explosion disengaging DPF occurs；
D4, cleaning fluid is injected into container, until first chamber or second chamber cleaning liquid inside reach setting liquid level or set
Determine hydraulic pressure；
D5, supersonic generator is opened, clean DPF；
D6, supersonic generator is closed, discharge the cleaning fluid in first and second chamber；
D7, container is opened, take out DPF.
Step D4 is carried out again after preferable repeated several times step D2, D3, and step D2, D3 row can be carried out after step D6
The water gone out in DPF dries DPF.
It is more highly preferred to, DPF method for cleaning includes：In step D2, first to first chamber inner high voltage gas, controller obtains the
First, the actual pressure difference or draught head curve of two chambers, the DPF dredged completely Standard Gases pressure difference or draught head curve are compareed,
Standard Gases pressure difference/actual pressure difference can embody DPF stopping state, and Standard Gases pressure difference/actual pressure difference is more than a certain
During standard, such as 0.9,0.95 can stops follow-up cleaning, otherwise continues gas explosion；Reality is obtained in adjacent gas explosion twice
When draught head or very close draught head curve, it is possible to think gas explosion DeGrain, at this moment carry out follow-up ultrasound again
Ripple cleans；
In step D5, in ultrasonic wave cleaning process, continue into first chamber injection with certain pressure cleaning fluid,
And the fluid pressure in first chamber is kept, at this moment controller can be obtained by the actual liquid pressure of first chamber and second chamber
Power is poor, the normal fluid pressure differential for the DPF that same control is dredged completely, when normal fluid pressure differential/actual liquid pressure differential
Numerical value when reaching a certain standard, such as 0.9,0.95 can stops follow-up cleaning, stops the work of supersonic generator,
Otherwise continue to clean, within the unit interval actual liquid pressure differential slippage be less than setting slippage when, after
Continuous step 5, is hereafter further continued for step D2 to step D7.
In the present embodiment, ultrasonic wave cleaning is carried out to DPF after clearing up DPF gas explosions, can first be dredged by gas explosion absolutely
Most duct, when DPF blocks serious, gas explosion is more preferable than the effect of sonic cleaning to PM cleaning effect, after gas explosion
DPF duct dredging successor so remain a part of PM, cleaning fluid can be allowed by this moment injecting cleaning fluid into DPF duct again
Fully contacted with PM, to realize more preferable ultrasonic wave cleaning performance.
More than, only it is presently preferred embodiments of the present invention, any formal limitation not is made to the present invention, although this
Invention is disclosed above with preferred embodiment, but is not limited to the present invention, any person skilled in the art,
Do not depart from the range of technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to equivalent
The equivalent embodiment of change, as long as being without departing from technical solution of the present invention content, the technical spirit according to the present invention is real to more than
Any simple modification, equivalent variations and the modification that example made are applied, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of DPF cleaning plants based on gas explosion, including container and the lid for sealing the container, it is characterised in that
The DPF may be housed in the container and the outer wall of the DPF is removably tightly connected the container inner wall, the appearance
When DPF is accommodated in device, the container is separated into first chamber and second chamber by DPF, and the container is connected by intake valve
To high-pressure air source, the second chamber can be connected by gas explosion quck-opening valve with air.
2. DPF cleaning plants according to claim 1, it is characterised in that the container also includes being used to gather described the
The baroceptor of air pressure in one chamber and/or in second chamber.
3. DPF cleaning plants according to claim 1, it is characterised in that DPF installations are fixedly connected with the container
Frame, the DPF mounting brackets include retaining mechanism, mounting bracket bottom plate, and the mounting bracket bottom plate has the hole link with the DPF
Through hole, the mounting bracket bottom plate is hermetically connected with the container inner wall, the retaining mechanism and the mounting bracket bottom plate
Or the container is connected, the retaining mechanism is used to extrude the DPF and the mounting bracket bottom plate, the DPF and the mounting bracket bottom
There is sealing adjustable plate between plate.
4. DPF cleaning plants according to claim 1, it is characterised in that the high-pressure air source is air compressor or pressure
Contracting air reservoir.
5. DPF cleaning plants according to claim 1, it is characterised in that the first chamber and the air compressor
Or there is intake valve between the compressed air reservoir.
6. DPF cleaning plants according to claim 1, it is characterised in that the gas explosion quck-opening valve is by deduster and greatly
Gas connects.
7. the DPF cleaning plants according to any one in claim 1, it is characterised in that the gas explosion quck-opening valve passes through
Muffler is connected with air.
8. the DPF cleaning plants according to any one in claim 1-7, it is characterised in that the gas explosion quck-opening valve bag
Valve seat and flap are included, the flap includes first piston, second piston and the first piston that is connected, the second piston
Connecting pole；The valve seat includes accommodating the first valve pocket of the first piston, accommodates the second valve pocket of the second piston and divide
Every first valve pocket and the dividing plate of second valve pocket, first valve pocket has exhaust outlet and can coordinated with the first piston
The air inlet of sealing, the connecting pole pass through the dividing plate, and the connecting pole and the dividing plate seal against each other, the second piston by this
Two valve pockets are separated into valve opening chamber and close valve pocket, and the valve opening chamber is between the pass valve pocket and first valve pocket, the valve opening chamber
With valve opening mouth, the pass valve pocket, which has, closes valve port.
9. the DPF cleaning plants according to any one in claim 1-7, it is characterised in that the lid is positioned at described
One end of first chamber.
10. the DPF cleaning plants according to any one in claim 1-7, it is characterised in that outside the outer wall of the DPF
DPF shells are sealedly connected with, the DPF shells can be detachably connected with what the container inner wall sealed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071424.7A CN107875740B (en) | 2017-11-03 | 2017-11-03 | DPF cleaning device based on gas explosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071424.7A CN107875740B (en) | 2017-11-03 | 2017-11-03 | DPF cleaning device based on gas explosion |
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| CN107875740A true CN107875740A (en) | 2018-04-06 |
| CN107875740B CN107875740B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711071424.7A Active CN107875740B (en) | 2017-11-03 | 2017-11-03 | DPF cleaning device based on gas explosion |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100717565B1 (en) * | 2006-05-26 | 2007-05-15 | 에스케이 주식회사 | A cleansing device of dpf that removes the ash of diesel vehicles with ease |
| CN204193670U (en) * | 2014-09-29 | 2015-03-11 | 北京中设国维机电技术有限公司 | A kind of cleaning case of industrial filter core |
| CN207822646U (en) * | 2017-11-03 | 2018-09-07 | 宁波行泰环保科技有限公司 | A kind of DPF cleaning plants based on gas explosion |
| CN216242384U (en) * | 2021-11-30 | 2022-04-08 | 上海埃弗斯阀门制造有限公司 | Oil cut-off valve controlled by gas pressure |
-
2017
- 2017-11-03 CN CN201711071424.7A patent/CN107875740B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100717565B1 (en) * | 2006-05-26 | 2007-05-15 | 에스케이 주식회사 | A cleansing device of dpf that removes the ash of diesel vehicles with ease |
| CN204193670U (en) * | 2014-09-29 | 2015-03-11 | 北京中设国维机电技术有限公司 | A kind of cleaning case of industrial filter core |
| CN207822646U (en) * | 2017-11-03 | 2018-09-07 | 宁波行泰环保科技有限公司 | A kind of DPF cleaning plants based on gas explosion |
| CN216242384U (en) * | 2021-11-30 | 2022-04-08 | 上海埃弗斯阀门制造有限公司 | Oil cut-off valve controlled by gas pressure |
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| CN107875740B (en) | 2023-11-17 |
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Effective date of registration: 20231023 Address after: No. 809, Central Avenue, Jiaojiang District, Taizhou City, Zhejiang Province, 318001 Applicant after: STATE GRID ZHEJIANG ELECTRIC POWER CO., LTD. TAIZHOU POWER SUPPLY Co. Address before: Floor 2, Building C, 123 Zhenning West Road, Zhenhai District, Ningbo City, Zhejiang Province, 315200 Applicant before: NINGBO HANGTAI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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