CN110206615A - A kind of DPF carrier soot and ash content cleaning plant and method for cleaning - Google Patents
A kind of DPF carrier soot and ash content cleaning plant and method for cleaning Download PDFInfo
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- CN110206615A CN110206615A CN201910484032.6A CN201910484032A CN110206615A CN 110206615 A CN110206615 A CN 110206615A CN 201910484032 A CN201910484032 A CN 201910484032A CN 110206615 A CN110206615 A CN 110206615A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 68
- 239000004071 soot Substances 0.000 title claims abstract description 41
- 239000000428 dust Substances 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 56
- 230000008569 process Effects 0.000 claims abstract description 37
- 230000008929 regeneration Effects 0.000 claims abstract description 30
- 238000011069 regeneration method Methods 0.000 claims abstract description 30
- 239000011261 inert gas Substances 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 26
- 238000005453 pelletization Methods 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 113
- 238000011144 upstream manufacturing Methods 0.000 claims description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 9
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000003745 diagnosis Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 description 11
- 238000013461 design Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- QGZKDVFQNNGYKY-AKLPVKDBSA-N Ammonia-N17 Chemical compound [17NH3] QGZKDVFQNNGYKY-AKLPVKDBSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/0232—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles removing incombustible material from a particle filter, e.g. ash
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A kind of DPF carrier soot and ash content cleaning plant and method for cleaning, comprising: TT&C system, air heating system, blower system, jet system, inert gas generating system, support system, dust pelletizing system；TT&C system is connected by power supply line with air heating system, blower system, and TT&C system controls harness by industrial personal computer and is successively connected with air heating system, blower system, jet system, inert gas generating system and support system；Blower system is connected by gas connection pipe with air heating system, inert gas generating system；Air heating system and inert gas generating system are connected with support system again；Support system is connected by exhaust connection and method for cleaning with dust pelletizing system.The method for cleaning of use can satisfy the demand of initiative regeneration safety in the case of any carbon carrying capacity, easy to operate, while be collected in entire scale removal process to soot and ash content, will not generate secondary pollution.
Description
Technical field:
The invention belongs to exhaust emissions of diesel engine post-processing technology field, it is related to a kind of DPF carrier soot and ash content cleaning plant
And method for cleaning.
Background technique:
It is well known that diesel engine is due to its thermal efficiency with higher, good reliability and durability increasingly by public
Favor.Currently, the road state six in China, four emission regulation of non-rice habitats state are to the particulate matter quality discharge of diesel engine, particulate count
Amount discharge is strictly limited, and the emission regulation being increasingly stringenter forces diesel engine production firm installation grain catcher to drop
Low particulate matter quality discharge and the discharge of particulate matter quantity.
Grain catcher (Diesel Particulate Filter, referred to as: DPF), will be sent out by filter material
Micro particle catching in motivation exhaust is generally acknowledged at present to solve the problems, such as that diesel particulate emission is most effective in filter structure
One of means.
In DPF use process, need to remove trapped in filtering body by continuity regeneration or periodic regeneration
Grain object, is maintained at the pressure drop of DPF in reasonable range, guarantees DPF and engine all in normal operating conditions.But
In the regenerative process of DPF, the ash content of DPF carrier inside can not be burned off, by long time integration, DPF carrier inside
It will add up a large amount of ash content, ash content is accumulated in DPF to significantly affect the pressure drop, filtering and reproducing characteristic of DPF, leads to engine
Working performance deteriorates.
Therefore how the soot and ash content of DPF carrier inside are cleared up, to the actual filtration efficiency for improving DPF, drop
Low regeneration frequency extends DPF service life, reduces later period maintenance cost, reduces engine power loss and reduces fuel consumption
It is most important.
Summary of the invention:
It is convenient for disassembly and assembly the object of the present invention is to provide a kind of compact-sized, it is versatile, in the case of can satisfy any carbon carrying capacity
The DPF carrier soot and ash content cleaning plant and method for cleaning of the demand of initiative regeneration safety.
To achieve the above object, the present invention provides a kind of DPF carrier soot and ash content cleaning plants, comprising: observing and controlling system
System, air heating system, blower system, jet system, inert gas generating system, support system, dust pelletizing system；Observing and controlling
System is connected by power supply line with air heating system, blower system, TT&C system by industrial personal computer control harness successively with
Air heating system, blower system, jet system, inert gas generating system and support system are connected；Blower system
It is connected by gas connection pipe with air heating system, inert gas generating system；Air heating system and inert gas hair
Raw system is connected with support system again；Support system is connected by exhaust connection with dust pelletizing system.
The TT&C system includes: power supply line, industrial personal computer, industrial personal computer control harness；Power supply line one end in TT&C system
It is connected with 220V AC power source, the high warm in the industrial personal computer, air heating system in the power supply line other end and TT&C system
Frequency conversion fan controller is connected in air pressure gun controller, blower system；Industrial personal computer controls harness by industrial personal computer in TT&C system
In the frequency conversion fan controller in blower system, the cold air duct air throttle in jet system, jet system
High-temperature hot-air gun controller in hot-air channel air throttle, air heating system, the upstream temperature sensor in support system, branch
The upstream and downstream differential pressure pickup in downstream temperature sensor, support system in frame system, the nitrogen in inert gas generating system
Gas generator is connected.
The air heating system includes: high-temperature hot-air gun controller, high-temperature hot-air rifle control line, high-temperature hot-air rifle and height
Warm air pressure gun outlet temperature sensor；High-temperature hot-air gun controller one end controls the work in harness and TT&C system by industrial personal computer
Control machine is connected, and the high-temperature hot-air gun controller other end passes through high-temperature hot-air rifle control line and high-temperature hot-air rifle, high-temperature hot-air rifle
Outlet temperature sensor is connected.
The blower system includes: frequency conversion fan controller, frequency conversion fan control line, frequency conversion fan and air mass flow sensing
Device；Frequency conversion fan controller one end controls harness by industrial personal computer and is connected with industrial personal computer in TT&C system, frequency conversion fan control
The device other end is connected by frequency conversion fan control line with frequency conversion fan, air flow sensor.
The jet system includes: cold air duct air throttle, hot-air channel air throttle；Cold air duct air throttle one end
It is connected with blower system frequency conversion fan, the nitrogen gas generator in the cold air duct air throttle other end and inert gas generating system
It is connected；Hot-air channel air throttle one end in jet system is connected with blower system frequency conversion fan, hot-air channel section
The valve other end is connected with the high-temperature hot-air rifle in air heating system.
The inert gas generating system includes: nitrogen gas generator；Nitrogen gas generator one end and cold air duct air throttle phase
Connection, the nitrogen gas generator other end are connected with the hot and cold gas mixer in support system.
The support system includes: upstream temperature sensor, downstream temperature sensor, upstream and downstream differential pressure pickup, exhaust
Connecting tube, hot and cold gas mixer and DPF carrier for clearance；Upstream temperature sensor, downstream temperature sensor, upstream and downstream pressure difference
Sensor is connected with the industrial personal computer control harness in TT&C system respectively；Hot and cold gas mixer one end and air heating system
In high-temperature hot-air rifle be connected with the nitrogen gas generator in inert gas generating system, the hot and cold gas mixer other end with to
Cleaning DPF carrier is connected；Exhaust connection one end is connected with DPF carrier for clearance, the exhaust connection other end and dedusting
Cyclone dust collectors in system are connected.
The dust pelletizing system includes: dust arrester and cyclone dust collectors；The company of exhaust in cyclone dust collectors one end and support system
Adapter tube, the cyclone dust collectors other end are connected with dust arrester.
The present invention provides a kind of DPF carrier soot and ash content method for cleaning, the specific steps are as follows:
[1] is read in diesel engine controller by failure diagnosis apparatus about DPF carrier current failure code for clearance first,
According to fault code by the method for cleaning of DPF carrier for clearance be divided into Severe blockage method for cleaning, slightly block method for cleaning,
Regular regeneration alarm method for cleaning and single deashing mode method for cleaning；
[2] in the scale removal process of above-mentioned four kinds of method for cleaning, industrial personal computer will be by controlling high-temperature hot-air gun controller, blower
The course of work of frequency-variable controller, cold air duct air throttle, hot-air channel air throttle, and according to upstream temperature sensor, downstream
The feedback of temperature sensor and upstream and downstream differential pressure pickup, is monitored scale removal process and closed-loop control；
[3] industrial personal computer is mainly controlled program and is made of following module using programmable, modular control program:
(1) room temperature cleaning modul: the demand air quantity of 200 ~ 800kg/h is set on industrial personal computer, 5 ~ 30 minutes demand air quantity continue
Time, then industrial personal computer controls harness by industrial personal computer and demand air quantity is sent to frequency conversion fan controller.Frequency conversion fan control
Device is connected by frequency conversion fan control line with frequency conversion fan and air flow sensor, and air flow sensor is by frequency conversion fan
Real-time air quantity feeds back to frequency conversion fan controller by frequency conversion fan control line, and frequency conversion fan controller is sensed according to air mass flow
The real-time air quantity of device feedback adjusts the course of work of frequency conversion fan by frequency conversion fan control line closed loop, finally realizes frequency conversion fan
The real-time air output control process consistent with demand air quantity；After scale removal process starts, cold air duct air throttle, which is in, often to be closed
Closed state, hot-air channel air throttle are in normal opening state, and high-temperature hot-air rifle does not heat the normal temperature air flowed through, unheated air
Reverse blow is carried out to DPF carrier for clearance, the particle purged and ash content are then captured in dust arrester by cyclone dust collectors
In；
(2) low temperature cleaning modul in: the demand air quantity of 200 ~ 800kg/h of setting, 200 ~ 250 DEG C of demand air quantity temperature on industrial personal computer
Degree, 5 ~ 30 minutes demand air quantity duration, then industrial personal computer controls harness for demand air quantity and demand air quantity by industrial personal computer
Duration issues frequency conversion fan controller, and frequency conversion fan controller air flow sensor measures the practical outlet air of frequency conversion fan
The course of work for measuring closed-loop control frequency conversion fan, makes the practical air output of frequency conversion fan reach demand air quantity；Industrial personal computer passes through work
Control machine controls harness and demand air quantity temperature is issued high-temperature hot-air gun controller, and high-temperature hot-air gun controller is according to high-temperature hot-air rifle
Outlet temperature sensor measures the course of work of the practical leaving air temp closed-loop control high-temperature hot-air rifle of high-temperature hot-air rifle, makes high temperature
The practical leaving air temp of heat gun reaches demand air quantity temperature.After scale removal process starts, cold air duct air throttle, which is in, is often closed
State, hot-air channel air throttle are in normal opening state, and high-temperature hot-air rifle heats the normal temperature air flowed through, by heating
Air-flow reverse blow and heating are carried out to DPF carrier for clearance, then by cyclone dust collectors by the particle purged and ash content
It is captured in dust arrester；
(3) high temperature cleaning modul: the demand air quantity of 200 ~ 800kg/h of setting, 400 ~ 450 DEG C of demand air quantity temperature on industrial personal computer
Degree, 5 ~ 30 minutes demand air quantity duration, then industrial personal computer controls harness for demand air quantity and demand air quantity by industrial personal computer
Duration issues frequency conversion fan controller, and frequency conversion fan controller air flow sensor measures the practical outlet air of frequency conversion fan
The course of work for measuring closed-loop control frequency conversion fan, makes the practical air output of frequency conversion fan reach demand air quantity；Industrial personal computer passes through work
Control machine controls harness and demand air quantity temperature is issued high-temperature hot-air gun controller, and high-temperature hot-air gun controller is according to high-temperature hot-air rifle
Outlet temperature sensor measures the course of work of the practical leaving air temp closed-loop control high-temperature hot-air rifle of high-temperature hot-air rifle, makes high temperature
The practical leaving air temp of heat gun reaches demand air quantity temperature.After scale removal process starts, cold air duct air throttle, which is in, is often closed
State, hot-air channel air throttle are in normal opening state, and high-temperature hot-air rifle heats the normal temperature air flowed through, by heating
Air-flow reverse blow and heating are carried out to DPF carrier for clearance, then by cyclone dust collectors by the particle purged and ash content
It is captured in dust arrester；
(4) high temperature cleaning modul: the demand air quantity of 200 ~ 800kg/h of setting, 600 ~ 650 DEG C of demand air quantity temperature on industrial personal computer
Degree, 5 ~ 30 minutes demand air quantity duration, then industrial personal computer controls harness for demand air quantity and demand air quantity by industrial personal computer
Duration issues frequency conversion fan controller, and frequency conversion fan controller air flow sensor measures the practical outlet air of frequency conversion fan
The course of work for measuring closed-loop control frequency conversion fan, makes the practical air output of frequency conversion fan reach demand air quantity；Industrial personal computer passes through work
Control machine controls harness and demand air quantity temperature is issued high-temperature hot-air gun controller, and high-temperature hot-air gun controller is according to high-temperature hot-air rifle
Outlet temperature sensor measures the course of work of the practical leaving air temp closed-loop control high-temperature hot-air rifle of high-temperature hot-air rifle, makes high temperature
The practical leaving air temp of heat gun reaches demand air quantity temperature.After scale removal process starts, cold air duct air throttle, which is in, is often closed
State, hot-air channel air throttle are in normal opening state, and high-temperature hot-air rifle heats the normal temperature air flowed through, by heating
Air-flow reverse blow, heating are carried out to DPF carrier for clearance and internal soot process of burning, then will be blown by cyclone dust collectors
The particle and ash content swept are captured in dust arrester；
[4] if DPF carrier for clearance be Severe blockage, first successively call room temperature cleaning modul, middle low temperature cleaning modul,
High temperature cleaning modul clears up the soot and unburned hydrocarbons of DPF carrier for clearance, by DPF carrier for clearance
Carbon carrying capacity is reduced in safe regeneration range；Then high temperature cleaning modul is called to carry out initiative regeneration, it will be in DPF carrier for clearance
The remaining carbon-smoke combustion in portion is complete；Finally successively call high temperature cleaning modul, middle low temperature cleaning modul to DPF carrier for clearance again
Carry out ash content cleaning；
[5] if DPF carrier for clearance is slight blocking, room temperature cleaning modul, middle low temperature cleaning modul pair are successively called first
The soot and unburned hydrocarbons of DPF carrier for clearance are cleared up, and the carbon carrying capacity of DPF carrier for clearance is reduced to safety
In regeneration range；Then high temperature cleaning modul is called to carry out initiative regeneration, by the remaining carbon-smoke combustion of DPF carrier inside for clearance
It is complete；Finally high temperature cleaning modul, middle low temperature cleaning modul is successively called to carry out ash content cleaning to room temperature cleaning modul again；
[6] it if DPF carrier for clearance is regular regeneration alarm, calls directly and high temperature cleaning modul is called to carry out initiative regeneration,
The remaining carbon-smoke combustion of DPF carrier inside for clearance is complete；High temperature cleaning modul, middle low temperature cleaning modul pair are successively called again
DPF carrier for clearance carries out ash content cleaning；
[7] if DPF carrier for clearance is deashing alarm, successively high temperature cleaning modul, middle low temperature cleaning modul is called to treat
It clears up DPF carrier and carries out ash content cleaning.
It can reach after the invention adopts the above technical scheme following the utility model has the advantages that DPF carrier soot and ash content cleaning plant
Design is rationally, compact-sized, convenient for disassembly and assembly, versatile, can meet different dimension D PF carrier cleaning demands.Meanwhile the device
The actual filtration efficiency of DPF can be improved, regeneration frequency is reduced, extending DPF makes as the device of ash content inside cleaning DPF
Use the service life；It can satisfy and appoint as service station active regeneration device during DPF after-sale service, the method for cleaning of use again
The demand of initiative regeneration safety, easy to operate in the case of carbon carrying capacity of anticipating, while to soot and ash content in entire scale removal process
It is collected, secondary pollution will not be generated.
Detailed description of the invention:
Fig. 1 is a kind of Major Systems structural schematic diagram of DPF carrier soot and ash content cleaning plant of the present invention；
Fig. 2 is a kind of specific system structure diagram of DPF carrier soot and ash content cleaning plant of the present invention.
Specific embodiment:
Present invention will be further explained below with reference to the attached drawings and examples, the object of the present invention is to provide it is a kind of it is compact-sized,
Securely and reliably, easy to operate DPF carrier soot and ash content cleaning plant and method for cleaning.
To achieve the above object, a kind of DPF carrier soot and ash content cleaning plant provided by the invention, comprising: observing and controlling system
Unite S10, air heating system S20, blower system S30, jet system S40, inert gas generating system S50, carriage support
Unite S60, dust pelletizing system S70.
TT&C system S10 is connected by power supply line 1 with air heating system S20, blower system S30, and industrial personal computer is passed through
Control harness 6 successively with air heating system S20, blower system S30, jet system S40, inert gas generating system
S50 and support system S60 are connected；Blower system S30 is sent out by gas connection pipe and air heating system S20, inert gas
Raw system S50 is connected；Air heating system S20 and inert gas generating system S50 are connected with support system S60；Bracket
System S60 is connected by exhaust connection 11 with dust pelletizing system S70.
TT&C system S10 includes: power supply line 1, industrial personal computer 2 and industrial personal computer control harness 6；
1 one end of power supply line in TT&C system S10 is connected with 220V AC power source, 1 other end of power supply line and TT&C system S10
In industrial personal computer 2, the high-temperature hot-air gun controller 3 in air heating system S20, the frequency conversion fan in blower system S30 control
Device 4 is connected, and is powered to these equipment.Industrial personal computer 2 in TT&C system S10 controls harness 6 and drum by industrial personal computer
The cold air duct air throttle 14 in frequency conversion fan controller 4, jet system S40, jet system in wind system S30
The high-temperature hot-air gun controller 3 in hot-air channel air throttle 15, air heating system S20 in S40, in support system S60
The upstream and downstream pressure difference sensing in downstream temperature sensor 9, support system S60 in upstream temperature sensor 8, support system S60
Nitrogen gas generator 17 in device 10, inert gas generating system S50 is connected.Industrial personal computer 2 is according to different cleaning demands, to wind
Machine frequency-variable controller 4 issues air quantity requirement command, and high-temperature hot-air gun controller 3 issues temperature requirements instruction, while according to upstream
Temperature sensor 8, downstream temperature sensor 9, the feedback of upstream and downstream temperature sensor 10 carry out closed loop control to current scale removal process
The progress for making and judging scale removal process guarantees that entire scale removal process is safely controllable.
Air heating system S20 includes: high-temperature hot-air gun controller 3, high-temperature hot-air rifle control line 7, high-temperature hot-air rifle 16
With high-temperature hot-air rifle outlet temperature sensor 18.
3 one end of high-temperature hot-air gun controller in air heating system S20 controls harness 6 and TT&C system by industrial personal computer
Industrial personal computer 2 in S10 is connected, and 3 other end of high-temperature hot-air gun controller passes through high-temperature hot-air rifle control line 7 and high-temperature hot-air rifle
16, high-temperature hot-air rifle outlet temperature sensor 18 is connected.High-temperature hot-air gun controller 3 is connected to the temperature that industrial personal computer 2 is sent and needs
After asking instruction, carried out according to practical outlet temperature of the feedback of high-temperature hot-air rifle outlet temperature sensor 18 to high-temperature hot-air rifle 16
Closed-loop control meets air demand for heat.
Blower system S30 includes: frequency conversion fan controller 4, frequency conversion fan control line 5, frequency conversion fan 12 and air mass flow
Sensor 13.
4 one end of frequency conversion fan controller in blower system S30 is controlled in harness 6 and TT&C system S10 by industrial personal computer
Industrial personal computer 2 is connected, and 4 other end of frequency conversion fan controller passes through frequency conversion fan control line 5 and frequency conversion fan 12 and air mass flow
Sensor 13 is connected.It is anti-according to air flow meter 13 after frequency conversion fan controller 4 is connected to the air quantity requirement command of industrial personal computer 2
Feedback exports actual flow to frequency conversion fan 12 and carries out closed-loop control, meets air quantity demand in scale removal process.
Jet system S40 includes: cold air duct air throttle 14, hot-air channel air throttle 15；
14 one end of cold air duct air throttle in jet system S40 is connected with blower system S30 frequency conversion fan 12, cold wind
Air throttle 14 other end in channel is connected with the nitrogen gas generator 17 in inert gas generating system S50；Jet system S40
In 15 one end of hot-air channel air throttle be connected with blower system S30 frequency conversion fan 12,15 other end of hot-air channel air throttle
It is connected with the high-temperature hot-air rifle 16 in air heating system S20.Industrial personal computer 2 is according to different cleaning demand and process control need
Seek the aperture for adjusting cold air duct air throttle 14 and hot-air channel air throttle 15.
Inert gas generating system S50 includes: nitrogen gas generator 17.
17 one end of nitrogen gas generator in inert gas generating system S50 is connected with cold air duct air throttle 14, nitrogen
17 other end of generator is connected with the hot and cold gas mixer 19 in support system S60.Nitrogen gas generator 17 is in DPF for clearance
Occur starting to work in the excessively high situation of temperature during 20 initiative regeneration of carrier, clears up 20 internal oxygen of DPF carrier by reducing
Content prevents soot spontaneous combustion process, so as to effectively prevent high temperature to damage carrier and catalyst.
Support system S60 includes: upstream temperature sensor 8, downstream temperature sensor 9, upstream and downstream differential pressure pickup 10, row
Gas connecting tube 11, hot and cold gas mixer 19 and DPF carrier 20 for clearance.
Upstream temperature sensor 8, downstream temperature sensor 9, upstream and downstream differential pressure pickup 10 and survey in support system S60
Industrial personal computer control harness 6 in control system S10 is connected；In 19 one end of hot and cold gas mixer and air heating system S20
High-temperature hot-air rifle 16 is connected with the nitrogen gas generator 17 in inert gas generating system S50, and hot and cold gas mixer 19 is another
End is connected with DPF carrier 20 for clearance；11 one end of exhaust connection is connected with DPF carrier 20 for clearance, exhaust connection
11 one end are connected with the cyclone dust collectors 22 in dust pelletizing system S70.
DPF carrier 20 for clearance requirement of installation direction on DPF carrier soot and ash content cleaning plant is, for clearance
The airflow direction that DPF carrier 20 identifies is opposite with the airflow direction in DPF carrier soot and the ash content cleaning plant course of work.
There are a series of deformation designs for hot and cold gas mixer 19, with 17 junction of high-temperature hot-air rifle 16 and nitrogen gas generator
Size all, and the size being connect with 20 outlet end of DPF carrier for clearance can according to the size of DPF carrier 20 for clearance into
Row design.Differentiation, diversity requirement can either be met in this way, and improve the versatility of equipment, reduce equipment development at
Sheet and development cycle.
11 one end of exhaust connection is connected with 20 arrival end of DPF carrier for clearance, 11 one end of exhaust connection and whirlwind
Deduster 22 is connected.There are a series of deformation designs for exhaust connection 11, the size all one with 22 junction of cyclone dust collectors
Sample, and the size connecting with 20 arrival end of DPF carrier for clearance can be designed according to the size of DPF carrier 20 for clearance.This
Sample can either meet differentiation, diversity requirement, and improve the versatility of equipment, reduce equipment development cost and exploitation week
Phase.
Dust pelletizing system S70 includes: dust arrester 21 and cyclone dust collectors 22.
Exhaust connection 11 in 22 one end of cyclone dust collectors and support system S60 in dust pelletizing system S70, cyclone dust collectors
22 other ends are connected with dust arrester 21.Dust arrester 21 is mounted on 22 bottom of cyclone dust collectors, and cyclone dust collectors 22 can will be to
Soot and ash content in cleaning 20 scale removal process of DPF carrier are effectively trapped by centrifugal action, are subsequently collected in dust
In device 21, avoids soot and ash content in scale removal process and be directly discharged into air and cause secondary pollution.
The present invention provides a kind of DPF carrier soot and ash content method for cleaning, the specific steps are as follows:
It is read in diesel engine controller by failure diagnosis apparatus about 20 current failure code of DPF carrier for clearance, root first
According to fault code by the method for cleaning of DPF carrier 20 for clearance be divided into Severe blockage method for cleaning, slightly block method for cleaning,
Regular regeneration alarm method for cleaning and single deashing mode method for cleaning.
In the scale removal process of these four method for cleaning, industrial personal computer 2 will be by controlling high-temperature hot-air gun controller 3, blower
The course of work of frequency-variable controller 4, cold air duct air throttle 14, hot-air channel air throttle 15, and according to upstream temperature sensor
8, the feedback of downstream temperature sensor 9 and upstream and downstream differential pressure pickup 10, is monitored scale removal process and closed-loop control.
Industrial personal computer 2 is mainly controlled program and is made of following module using programmable, modular control program:
(1) room temperature cleaning modul: the demand air quantity of 200 ~ 800kg/h is set on industrial personal computer 2,5 ~ 30 minutes demand air quantity continue
Time, then industrial personal computer 2 controls harness 6 by industrial personal computer and demand air quantity is issued frequency conversion fan controller 4.Frequency conversion fan control
Device 4 is connected by frequency conversion fan control line 5 with frequency conversion fan 12 and air flow sensor 13, and air flow sensor 13 will
The real-time air quantity of frequency conversion fan 12 feeds back to frequency conversion fan controller 4 by frequency conversion fan control line 5, and frequency conversion fan controller 4
The worked of frequency conversion fan 12 is adjusted by 5 closed loop of frequency conversion fan control line according to the real-time air quantity that air flow sensor 13 is fed back
Journey, the final real-time air output for realizing frequency conversion fan 12 control process consistent with demand air quantity.It is cold after scale removal process starts
Wind channel air throttle 14 is in a normally closed state, and hot-air channel air throttle 15 is in normal opening state, and high-temperature hot-air rifle 16 is not right
The normal temperature air heating flowed through, unheated air carry out reverse blow to DPF carrier 20 for clearance, then will by cyclone dust collectors 22
The particle and ash content purged is captured in dust arrester 21.
(2) low temperature cleaning modul in: the demand air quantity of 200 ~ 800kg/h of setting, 200 ~ 250 DEG C of demands on industrial personal computer 2
Air quantity temperature, 5 ~ 30 minutes demand air quantity duration, then industrial personal computer 2 by industrial personal computer control harness 6 by demand air quantity and
The demand air quantity duration issues frequency conversion fan controller 4, and 4 air flow sensor 13 of frequency conversion fan controller measures frequency conversion wind
The course of work of the practical air output closed-loop control frequency conversion fan 12 of machine 12, makes the practical air output of frequency conversion fan 12 reach demand
Air quantity；Industrial personal computer 2 controls harness 6 by industrial personal computer and demand air quantity temperature is issued high-temperature hot-air gun controller 3, high-temperature hot-air rifle
Controller 3 is high according to the practical leaving air temp closed-loop control that high-temperature hot-air rifle outlet temperature sensor 18 measures high-temperature hot-air rifle 16
The course of work for warming air pressure gun 16, makes the practical leaving air temp of high-temperature hot-air rifle 16 reach demand air quantity temperature.Scale removal process is opened
After beginning, cold air duct air throttle 14 is in a normally closed state, and hot-air channel air throttle 15 is in normal opening state, high-temperature hot-air rifle
16 pairs of normal temperature airs flowed through heat, and the air-flow by heating carries out reverse blow and heating to DPF carrier 20 for clearance,
Then the particle purged and ash content are captured in dust arrester 21 by cyclone dust collectors 22.
(3) high temperature cleaning modul: the demand air quantity of 200 ~ 800kg/h of setting, 400 ~ 450 DEG C of demands on industrial personal computer 2
Air quantity temperature, 5 ~ 30 minutes demand air quantity duration, then industrial personal computer 2 by industrial personal computer control harness 6 by demand air quantity and
The demand air quantity duration issues frequency conversion fan controller 4, and 4 air flow sensor 13 of frequency conversion fan controller measures frequency conversion wind
The course of work of the practical air output closed-loop control frequency conversion fan 12 of machine 12, makes the practical air output of frequency conversion fan 12 reach demand
Air quantity；Industrial personal computer 2 controls harness 6 by industrial personal computer and demand air quantity temperature is issued high-temperature hot-air gun controller 3, high-temperature hot-air rifle
Controller 3 is high according to the practical leaving air temp closed-loop control that high-temperature hot-air rifle outlet temperature sensor 18 measures high-temperature hot-air rifle 16
The course of work for warming air pressure gun 16, makes the practical leaving air temp of high-temperature hot-air rifle 16 reach demand air quantity temperature.Scale removal process is opened
After beginning, cold air duct air throttle 14 is in a normally closed state, and hot-air channel air throttle 15 is in normal opening state, high-temperature hot-air rifle
16 pairs of normal temperature airs flowed through heat, and the air-flow by heating carries out reverse blow and heating to DPF carrier 20 for clearance,
Then the particle purged and ash content are captured in dust arrester 21 by cyclone dust collectors 22.
(4) demand air quantity, 600 ~ 650 DEG C of demand wind of 200 ~ 800kg/h high temperature cleaning modul: are set on industrial personal computer 2
Amount temperature, 5 ~ 30 minutes demand air quantity duration, then industrial personal computer 2 controls harness 6 for demand air quantity by industrial personal computer and needs
The air quantity duration is asked to issue frequency conversion fan controller 4,4 air flow sensor 13 of frequency conversion fan controller measures frequency conversion fan
The course of work of 12 practical air output closed-loop control frequency conversion fan 12, makes the practical air output of frequency conversion fan 12 reach demand wind
Amount；Industrial personal computer 2 controls harness 6 by industrial personal computer and demand air quantity temperature is issued high-temperature hot-air gun controller 3, high-temperature hot-air rifle control
Device 3 processed measures the practical leaving air temp closed-loop control high temperature of high-temperature hot-air rifle 16 according to high-temperature hot-air rifle outlet temperature sensor 18
The course of work of heat gun 16 makes the practical leaving air temp of high-temperature hot-air rifle 16 reach demand air quantity temperature.Scale removal process starts
Afterwards, cold air duct air throttle 14 is in a normally closed state, and hot-air channel air throttle 15 is in normal opening state, high-temperature hot-air rifle 16
The normal temperature air flowed through is heated, the air-flow by heating carries out reverse blow, heating and combustion to DPF carrier 20 for clearance
Internal soot process is burnt, then the particle purged and ash content are captured in dust arrester 21 by cyclone dust collectors 22.
In high temperature clean-up phase, since DPF carrier 20 for clearance is due to by 600 ~ 650 DEG C of air-flow continuous heatings, when to
When the internal temperature of cleaning DPF carrier 20 is reached between 600 ~ 650 DEG C, occur actively again inside DPF carrier 20 for clearance
Spontaneous combustion process occurs for the carbon soot particles of raw process, trapping, and the constant temperature that upstream temperature sensor 8 measures rises, if upstream temperature
The temperature that degree sensor 8 measures is no more than always 750 DEG C, then persistently 600 ~ 650 DEG C of air-flows is kept to be purged until high temperature is clear
Reason process terminates.If the temperature that upstream temperature sensor 8 measures is more than 750 DEG C, 2 time out of industrial personal computer, the high warm of pause
Air pressure gun controller 3 to 16 heating process of high-temperature hot-air rifle, close hot-air channel air throttle 15, open cold air duct air throttle 14,
Control 17 course of work of nitrogen gas generator.By a series of this control process, can inhibit rapidly inside DPF carrier 20 for clearance
The carbon soot particles spontaneous combustion process of generation, while DPF carrier 20 for clearance is cooled down using unheated air, when upstream temperature passes
When the temperature that sensor 8 measures is lower than 550 DEG C, industrial personal computer 2 then continues timing course, closes cold air duct air throttle 14, stops
17 course of work of nitrogen gas generator opens hot-air channel air throttle 15, controls high-temperature hot-air gun controller 3 to high-temperature hot-air rifle 16
The air for flowing through high-temperature hot-air rifle 16 is heated to 600 ~ 650 DEG C again by heating process, continues high temperature scale removal process.
If DPF carrier 20 for clearance is Severe blockage, room temperature cleaning modul, middle low temperature is successively called to clear up mould first
Block, high temperature cleaning modul clear up the soot and unburned hydrocarbons of DPF carrier 20 for clearance, by DPF for clearance
The carbon carrying capacity of carrier 20 is reduced in safe regeneration range；Then high temperature cleaning modul is called to carry out initiative regeneration, it will be for clearance
The 20 remaining carbon-smoke combustion in inside of DPF carrier is complete；Finally successively high temperature cleaning modul, middle low temperature cleaning modul is called to treat again
It clears up DPF carrier 20 and carries out ash content cleaning.
If DPF carrier 20 for clearance is slight blocking, room temperature cleaning modul, middle low temperature cleaning modul are successively called first
The soot and unburned hydrocarbons of DPF carrier 20 for clearance are cleared up, the carbon carrying capacity of DPF carrier 20 for clearance is reduced
Into safe regeneration range；Then high temperature cleaning modul is called to carry out initiative regeneration, 20 inside of DPF carrier for clearance is remaining
Carbon-smoke combustion is complete；Finally high temperature cleaning modul, middle low temperature cleaning modul is successively called to carry out ash content to room temperature cleaning modul again
Cleaning.
If DPF carrier 20 for clearance is regular regeneration alarm, calls directly high temperature cleaning modul and carry out initiative regeneration, it will
The 20 remaining carbon-smoke combustion in inside of DPF carrier for clearance is complete；High temperature cleaning modul, middle low temperature cleaning modul pair are successively called again
DPF carrier 20 for clearance carries out ash content cleaning.
If DPF carrier 20 for clearance is deashing alarm, high temperature cleaning modul, middle low temperature cleaning modul pair are successively called
DPF carrier 20 for clearance carries out ash content cleaning.
Finally it should be noted that: the foregoing is only a preferred embodiment of the present invention, is not limited to this hair
Bright full content comes for those skilled in the art although the present invention is described in detail referring to the foregoing embodiments
It says, formal modification can be still carried out to technical solution documented by previous embodiment, or to part of technology
Feature is equivalently replaced.All made form modifications within thinking enlightenment of the invention, equivalent replacement etc. should all include
Within the scope of the present invention.
Claims (9)
1. a kind of DPF carrier soot and ash content cleaning plant, comprising: TT&C system (S10), air heating system (S20), air blast
System (S30), jet system (S40), inert gas generating system (S50), support system (S60), dust pelletizing system
(S70)；TT&C system (S10) is connected by power supply line (1) with air heating system (S20), blower system (S30), observing and controlling
System (S10) by industrial personal computer control harness (6) successively with air heating system (S20), blower system (S30), gas flow optimized
System (S40), inert gas generating system (S50) and support system (S60) are connected；Blower system (S30) is connected by gas
Adapter tube is connected with air heating system (S20), inert gas generating system (S50)；Air heating system (S20) and indifferent gas
Body generating system (S50) is connected with support system (S60) again；Support system (S60) passes through exhaust connection (11) and dedusting
System (S70) is connected.
2. a kind of DPF carrier soot according to claim 1 and ash content cleaning plant, it is characterised in that: the observing and controlling system
System (S10) includes: power supply line (1), industrial personal computer (2), industrial personal computer control harness (6)；Power supply line (1) in TT&C system (S10)
One end is connected with 220V AC power source, and power supply line (1) other end and industrial personal computer (2), air in TT&C system (S10) heat
Frequency conversion fan controller (4) is connected in high-temperature hot-air gun controller (3), blower system (S30) in system (S20)；Observing and controlling
Industrial personal computer (2) passes through the frequency conversion fan controller in industrial personal computer control harness (6) and blower system (S30) in system (S10)
(4), the cold air duct air throttle (14) in jet system (S40), the hot-air channel solar term in jet system (S40)
Door (15), the high-temperature hot-air gun controller (3) in air heating system (S20), the sensing of the upstream temperature in support system (S60)
The upstream and downstream differential pressure pickup in downstream temperature sensor (9), support system (S60) in device (8), support system (S60)
(10), the nitrogen gas generator (17) in inert gas generating system (S50) is connected.
3. a kind of DPF carrier soot according to claim 1 and ash content cleaning plant, it is characterised in that: the air adds
Hot systems (S20) include: high-temperature hot-air gun controller (3), high-temperature hot-air rifle control line (7), high-temperature hot-air rifle (16) and high temperature
Heat gun outlet temperature sensor (18)；High-temperature hot-air gun controller (3) one end passes through industrial personal computer control harness (6) and observing and controlling system
System (S10) in industrial personal computer (2) be connected, high-temperature hot-air gun controller (3) other end by high-temperature hot-air rifle control line (7) with
High-temperature hot-air rifle (16), high-temperature hot-air rifle outlet temperature sensor (18) are connected.
4. a kind of DPF carrier soot according to claim 1 and ash content cleaning plant, it is characterised in that: the air blast system
System (S30) includes: frequency conversion fan controller (4), frequency conversion fan control line (5), frequency conversion fan (12) and air flow sensor
(13)；Frequency conversion fan controller (4) one end is connected by industrial personal computer control harness (6) with industrial personal computer (2) in TT&C system (S10)
It connects, frequency conversion fan controller (4) other end passes through frequency conversion fan control line (5) and frequency conversion fan (12), air flow sensor
(13) it is connected.
5. a kind of DPF carrier soot according to claim 1 and ash content cleaning plant, it is characterised in that: the air-flow control
System (S40) processed includes: cold air duct air throttle (14), hot-air channel air throttle (15)；Cold air duct air throttle (14) one end
It is connected with blower system (S30) frequency conversion fan (12), cold air duct air throttle (14) other end and inert gas generating system
(S50) nitrogen gas generator (17) in is connected；Hot-air channel air throttle (15) one end and drum in jet system (S40)
Wind system (S30) frequency conversion fan (12) is connected, in hot-air channel air throttle (15) other end and air heating system (S20)
High-temperature hot-air rifle (16) is connected.
6. a kind of DPF carrier soot according to claim 1 and ash content cleaning plant, it is characterised in that: the indifferent gas
Body generating system (S50) includes: nitrogen gas generator (17)；Nitrogen gas generator (17) one end is connected with cold air duct air throttle (14)
It connects, nitrogen gas generator (17) other end is connected with the hot and cold gas mixer (19) in support system (S60).
7. a kind of DPF carrier soot according to claim 1 and ash content cleaning plant, it is characterised in that: the carriage support
System (S60) includes: upstream temperature sensor (8), downstream temperature sensor (9), upstream and downstream differential pressure pickup (10), exhaust connection
Manage (11), hot and cold gas mixer (19) and DPF carrier for clearance (20)；Upstream temperature sensor (8), downstream temperature sensor
(9), upstream and downstream differential pressure pickup (10) is connected with industrial personal computer control harness (6) in TT&C system (S10) respectively；Cold and hot gas
High-temperature hot-air rifle (16) and inert gas generating system (S50) in body mixer (19) one end and air heating system (S20)
In nitrogen gas generator (17) be connected, hot and cold gas mixer (19) other end is connected with DPF carrier (20) for clearance；Row
Gas connecting tube (11) one end is connected with DPF carrier (20) for clearance, exhaust connection (11) other end and dust pelletizing system (S70)
In cyclone dust collectors (22) be connected.
8. a kind of DPF carrier soot according to claim 1 and ash content cleaning plant, it is characterised in that: the dedusting system
System (S70) includes: dust arrester (21) and cyclone dust collectors (22)；It is arranged in cyclone dust collectors (22) one end and support system (S60)
Gas connecting tube (11), cyclone dust collectors (22) other end are connected with dust arrester (21).
9. a kind of DPF carrier soot according to claim 1 and ash content cleaning plant, it is characterised in that: specific cleaning side
Steps are as follows for method:
[1] is read in diesel engine controller by failure diagnosis apparatus about DPF carrier (20) current failure generation for clearance first
The method for cleaning of DPF carrier (20) for clearance is divided into Severe blockage method for cleaning, slight blocking clearly according to fault code by code
Reason method, regular regeneration alarm method for cleaning and single deashing mode method for cleaning；
[2] in the scale removal process of above-mentioned four kinds of method for cleaning, industrial personal computer (2) will be by controlling high-temperature hot-air gun controller
(3), the course of work of fan frequency conversion controller (4), cold air duct air throttle (14), hot-air channel air throttle (15), and according to
The feedback of upstream temperature sensor (8) downstream temperature sensor (9) and upstream and downstream differential pressure pickup (10) carries out scale removal process
Monitoring and closed-loop control；
[3] industrial personal computer (2) mainly controls program by following module group using programmable, modular control program
At:
(1) room temperature cleaning modul: demand air quantity, 5 ~ 30 minutes demand air quantity that 200 ~ 800kg/h is set on industrial personal computer (2) are held
The continuous time, then demand air quantity is sent to frequency conversion fan controller (4) by industrial personal computer control harness (6) by industrial personal computer (2)；Become
Frequency controller of fan (4) is connected by frequency conversion fan control line (5) with frequency conversion fan (12) and air flow sensor (13),
The real-time air quantity of frequency conversion fan (12) is fed back to frequency conversion fan control by frequency conversion fan control line (5) by air flow sensor (13)
Device (4) processed, frequency conversion fan controller (4) are controlled according to the real-time air quantity that air flow sensor (13) is fed back by frequency conversion fan
Line (5) closed loop adjusts the course of work of frequency conversion fan (12), finally realizes the real-time air output and demand wind of frequency conversion fan (12)
Measure consistent control process；After scale removal process starts, cold air duct air throttle (14) is in a normally closed state, hot-air channel section
Valve (15) is in normal opening state, and high-temperature hot-air rifle (16) does not heat the normal temperature air flowed through, and unheated air is to for clearance
DPF carrier (20) carries out reverse blow, and the particle purged and ash content are then captured in dust arrester by cyclone dust collectors (22)
(21) in；
(2) demand air quantity, 200 ~ 250 DEG C of demand wind of 200 ~ 800kg/h low temperature cleaning modul in: are set on industrial personal computer (2)
Amount temperature, 5 ~ 30 minutes demand air quantity duration, then industrial personal computer (2) controls harness (6) for demand air quantity by industrial personal computer
And the demand air quantity duration issues frequency conversion fan controller (4), frequency conversion fan controller (4) air flow sensor (13) is surveyed
The course of work for obtaining the practical air output closed-loop control frequency conversion fan (12) of frequency conversion fan (12), makes the reality of frequency conversion fan (12)
Air output reaches demand air quantity；Demand air quantity temperature is issued high-temperature hot-air rifle by industrial personal computer control harness (6) by industrial personal computer (2)
Controller (3), high-temperature hot-air gun controller (3) measure high-temperature hot-air rifle according to high-temperature hot-air rifle outlet temperature sensor (18)
(16) course of work of practical leaving air temp closed-loop control high-temperature hot-air rifle (16), makes the practical outlet air of high-temperature hot-air rifle (16)
Temperature reaches demand air quantity temperature；After scale removal process starts, cold air duct air throttle (14) is in a normally closed state, hot-air channel
Air throttle (15) is in normal opening state, and high-temperature hot-air rifle (16) heats the normal temperature air flowed through, by the gas of heating
Stream carries out reverse blow and heating to DPF carrier (20) for clearance, then by cyclone dust collectors (22) by the particle purged and
Ash content is captured in dust arrester (21)；
(3) demand air quantity, 400 ~ 450 DEG C of demand wind of 200 ~ 800kg/h high temperature cleaning modul: are set on industrial personal computer (2)
Amount temperature, 5 ~ 30 minutes demand air quantity duration, then industrial personal computer (2) controls harness (6) for demand air quantity by industrial personal computer
And the demand air quantity duration issues frequency conversion fan controller (4), frequency conversion fan controller (4) air flow sensor (13) is surveyed
The course of work for obtaining the practical air output closed-loop control frequency conversion fan (12) of frequency conversion fan (12), makes the reality of frequency conversion fan (12)
Air output reaches demand air quantity；Demand air quantity temperature is issued high-temperature hot-air rifle by industrial personal computer control harness (6) by industrial personal computer (2)
Controller (3), high-temperature hot-air gun controller (3) measure high-temperature hot-air rifle according to high-temperature hot-air rifle outlet temperature sensor (18)
(16) course of work of practical leaving air temp closed-loop control high-temperature hot-air rifle (16), makes the practical outlet air of high-temperature hot-air rifle (16)
Temperature reaches demand air quantity temperature；After scale removal process starts, cold air duct air throttle (14) is in a normally closed state, hot-air channel
Air throttle (15) is in normal opening state, and high-temperature hot-air rifle (16) heats the normal temperature air flowed through, by the gas of heating
Stream carries out reverse blow and heating to DPF carrier (20) for clearance, then by cyclone dust collectors (22) by the particle purged and
Ash content is captured in dust arrester (21)；
(4) demand air quantity, 600 ~ 650 DEG C of demand air quantity of 200 ~ 800kg/h high temperature cleaning modul: are set on industrial personal computer (2)
Temperature, 5 ~ 30 minutes demand air quantity duration, then industrial personal computer (2) by industrial personal computer control harness (6) by demand air quantity and
The demand air quantity duration issues frequency conversion fan controller (4), and frequency conversion fan controller (4) air flow sensor (13) measures
The course of work of the practical air output closed-loop control frequency conversion fan (12) of frequency conversion fan (12), goes out the reality of frequency conversion fan (12)
Air quantity reaches demand air quantity；Demand air quantity temperature is issued high-temperature hot-air rifle control by industrial personal computer control harness (6) by industrial personal computer (2)
Device (3) processed, high-temperature hot-air gun controller (3) measure high-temperature hot-air rifle (16) according to high-temperature hot-air rifle outlet temperature sensor (18)
Practical leaving air temp closed-loop control high-temperature hot-air rifle (16) the course of work, make the practical leaving air temp of high-temperature hot-air rifle (16)
Reach demand air quantity temperature；After scale removal process starts, cold air duct air throttle (14) is in a normally closed state, hot-air channel solar term
Door (15) is in normal opening state, and high-temperature hot-air rifle (16) heats the normal temperature air flowed through, by the air-flow pair of heating
DPF carrier (20) for clearance carries out reverse blow, heating and internal soot process of burning, and then will be blown by cyclone dust collectors (22)
The particle and ash content swept are captured in dust arrester (21)；
[4] if DPF carrier (20) for clearance is Severe blockage, room temperature cleaning modul, middle low temperature is successively called to clear up mould first
Block, high temperature cleaning modul clear up the soot and unburned hydrocarbons of DPF carrier (20) for clearance, will be for clearance
The carbon carrying capacity of DPF carrier (20) is reduced in safe regeneration range；Then high temperature cleaning modul is called to carry out initiative regeneration, it will be to
It is complete to clear up DPF carrier (20) internal remaining carbon-smoke combustion；Finally high temperature cleaning modul, middle low temperature is successively called to clear up mould again
Block carries out ash content cleaning to DPF carrier (20) for clearance；
[5] if DPF carrier (20) for clearance is slight blocking, room temperature cleaning modul, middle low temperature is successively called to clear up mould first
Block clears up the soot and unburned hydrocarbons of DPF carrier (20) for clearance, and the carbon of DPF carrier (20) for clearance is carried
Amount is reduced in safe regeneration range；Then high temperature cleaning modul is called to carry out initiative regeneration, it will be in DPF carrier (20) for clearance
The remaining carbon-smoke combustion in portion is complete；Finally successively call high temperature cleaning modul, middle low temperature cleaning modul to room temperature cleaning modul again
Carry out ash content cleaning；
[6] it if DPF carrier (20) for clearance is regular regeneration alarm, calls directly and high temperature cleaning modul is called to carry out actively
Regeneration, the internal remaining carbon-smoke combustion of DPF carrier (20) for clearance is complete；High temperature cleaning modul, middle low temperature are successively called again
Cleaning modul carries out ash content cleaning to DPF carrier (20) for clearance；
[7] if DPF carrier (20) for clearance is deashing alarm, high temperature cleaning modul, middle low temperature cleaning modul are successively called
Ash content cleaning is carried out to DPF carrier (20) for clearance.
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| CN110735690A (en) * | 2019-10-24 | 2020-01-31 | 凯龙高科技股份有限公司 | high-temperature maintenance device for electrically heated particle catcher |
| CN112943415A (en) * | 2021-02-05 | 2021-06-11 | 北京航天爱锐科技有限责任公司 | Control method and control device of exhaust gas treatment device and vehicle |
| CN113374557A (en) * | 2021-06-11 | 2021-09-10 | 山东大学 | Intelligent cleaning device of particle catcher |
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| CN110735690A (en) * | 2019-10-24 | 2020-01-31 | 凯龙高科技股份有限公司 | high-temperature maintenance device for electrically heated particle catcher |
| CN112943415A (en) * | 2021-02-05 | 2021-06-11 | 北京航天爱锐科技有限责任公司 | Control method and control device of exhaust gas treatment device and vehicle |
| CN113374557A (en) * | 2021-06-11 | 2021-09-10 | 山东大学 | Intelligent cleaning device of particle catcher |
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