CN115793521A - Control system of DPF cleaning machine and implementation method thereof - Google Patents

Abstract

The application discloses control system of DPF cleaning machine and implementation method thereof, which belongs to the technical field of cleaning devices, the control system of the cleaning machine comprises a power supply module and a main control module, the power supply module supplies power for the control system, the main control module is used for sending control signals and acquiring signals of digital and analog quantity, the control system adopts an intelligent six-in-one design, and can realize detection, flushing, washing, drying, blowing, measurement and integrated control, the self-energy degree is high, the efficiency and effect of DPF cleaning are improved, and the cleaning machine has strong practicability and creativity.

Description

Control system of DPF cleaning machine and implementation method thereof

Technical Field

The invention relates to a control system of a DPF (diesel particulate filter) cleaning machine and an implementation method thereof, in particular to a control system for cleaning dirt by the DPF, and belongs to the technical field of cleaning devices.

Background

The Diesel Particulate Filter is a device which is installed in an exhaust system of a Diesel vehicle and reduces Particulate Matters (PM) in exhaust gas through filtration, the DPF can effectively purify 70% -90% of particles in the exhaust gas, the device is one of the most effective and most direct methods for purifying the PM of a Diesel engine, commercialization is realized internationally, the DPF is installed on an exhaust pipe of the Diesel engine, the PM is adsorbed and filtered by a Filter element when the exhaust gas passes through, numerous tiny pore passages are formed in the DPF, the tiny pore passages can be blocked by the PM along with the use of the DPF, a part of PM can be oxidized and combusted by exhaust gas when a vehicle runs, the method is more and more difficult to regenerate along with the increase of the working time of the DPF, the DPF is seriously blocked and the exhaust gas cannot be discharged, a device capable of cleaning the tiny pore passages in the DPF is needed to dredge, most of the existing methods for cleaning the PDF are high-temperature heating or compressed air blowing modes, the high-temperature heating can generate toxic gas, structures or components in the DPF can be damaged frequently, and unnecessary cleaning modes can be created, so that a practical cleaning machine is needed.

For example, in 9/29/2020, a DPF cleaning method and a cleaning machine with publication No. CN111720191A are disclosed, the present invention relates to a DPF cleaning method and a cleaning machine for particulate filter (DPF) regeneration, wherein a compressed air dual nozzle is adopted to respectively purge both ends of a DPF, particulate powder is added into a compressed air flow channel of the nozzle located in the direction of the end surface of the particulate accumulated in the DPF, and the flow of the compressed air pushes the particulate powder to be ejected from the nozzle, so that the particulate accumulated in the DPF can be quickly cleaned and removed, the above invention improves the production efficiency to a certain extent, but still has the following disadvantages;

1. when the DPF is cleaned by the device, the DPF is firstly disassembled, and then is installed and reset after cleaning is finished, so that the process is complicated, and unnecessary damage to the DPF due to improper operation is possible.

2. This cleaning device must carry out pneumatic clearance with DPF after the high temperature heating more than 600 ℃, and high-pressure air is used again, and high temperature heating has not only wasted a large amount of energy, but also can be accompanied with toxic gas's production, and in addition, some metals or other high temperature resistant particulate matters in the DPF can not by effectual washing, and the cleaning performance is not good.

3. The invention has the advantages of large energy consumption during operation, complex operation process, no cleaning effect detection device after the completion of DPF cleaning, and no guarantee of the cleaning time and effect of the DPF.

Disclosure of Invention

The control system does not need to disassemble and install the DPF, adopts a six-in-one intelligent design and a mode of combining pneumatic pulse technology and ultrasonic wave technology, has short ash removal time and convenient operation, and can effectively, quickly, nondestructively and safely clean carbon ash in the DPF to enable the DPF to reach an initial use state and obtain a satisfactory cleaning effect.

In order to solve the technical problems, the invention adopts the following technical scheme:

a control system of a DPF cleaning machine comprises a power supply module and a main control module;

the power supply module comprises a three-phase power supply, an N zero line and a PE ground wire, wherein the three-phase power supply and the N zero line are connected with one end of a breaker, the other end of the breaker is connected with one end of a contactor, the other end of the contactor is connected with a heating pipe, a heating core, a blower, an injection pump, a drainage pump and an ultrasonic generator and used for supplying power to the heating pipe, the heating core, the blower, the injection pump, the drainage pump and the ultrasonic generator, and the other end of the breaker is also connected with one end of a switching power supply and used for supplying power to a touch screen, an electromagnetic valve and a relay;

the main control module comprises a central processing unit CPU and an analog quantity unit U3, wherein the analog quantity unit U3 is used for collecting analog quantity signals and transmitting processed data to the central processing unit CPU.

Further, the three-phase power supply comprises an L1 line, an L2 line and an L3 line, the L1 line, the L2 line, the L3 line and the zero line of the three-phase power supply are connected with one end of a breaker QF0, the other end of the breaker QF0 is connected with a U1 line, a V1 line, a W1 line and the zero line of the three-phase power supply, the U1 line, the V1 line and the W1 line are connected with one end of a breaker QF01, the other end of the breaker QF01 is connected with one end of a contactor KM01, the other end of the contactor KM01 is connected with a heating tube, a shell of the heating tube is also connected with a PE ground wire, the U1 line, the V1 line and the W1 line are connected with one end of a breaker QF02, the other end of the breaker QF02 is connected with one end of a contactor KM02, the other end of the contactor KM02 is connected with a heating core, the shell of the heating core is also connected with a PE ground wire, the shell is used for providing power supply and shell live protection for the heating core, the U1 line and the other end of the shell, the breaker QF03 is connected with one end of the other end of the contactor KM03, the other end of the contactor KM03 is connected with the air blower, the shell of the air blower is also connected with a PE ground wire, the part is used for providing power supply for the air blower and protecting the shell in a charged way, the U1 wire and the N zero wire are connected with one end of a breaker QF04, the other end of the breaker QF04 is connected with one end of a contactor KM04, the other end of the contactor KM04 is connected with a jet pump, the shell of the jet pump is also connected with the PE ground wire, the part is used for providing power supply for the jet pump and protecting the shell in a charged way, the U1 wire and the N zero wire are connected with one end of a breaker QF05, the other end of the breaker QF05 is connected with one end of a contactor KM05, the other end of the contactor KM05 is connected with a drain pump, the shell of the drain pump is also connected with the PE ground wire, the part is used for providing power supply for the drain pump and protecting the shell in a charged way, the U1 wire and the N zero wire are connected with one end of a breaker QF06, the other end of the breaker QF06 is connected with one end of the contactor KM06, the ultrasonic generator shell is further connected with a PE ground wire, the part is used for providing power supply and shell electrified protection for the ultrasonic generator, the U1 line and the N zero line in the three-phase power supply are connected with one end of a breaker QF07, the other end of the breaker QF07 is connected with one end of a switch power supply, the other end of the switch power supply is connected with a 24L20 line and an M2 line, the part is used for providing power supply for a touch screen, a relay and an electromagnetic valve, the V1 line and the N zero line in the three-phase power supply are connected with one end of a breaker QF08, the other end of the breaker QF08 is connected with an L300 line and the N zero line, and the part is used for providing power supply for a contactor.

Further, the central processing unit CPU comprises an input unit U1, wherein the input unit U1 is used for detecting the running states of an emergency stop knob, a manual/automatic knob, a program starting contact switch, a program stopping contact switch, an overload contact switch and a liquid level contact switch; the pin I0.0 of the input unit U1 is connected with one end of a knob SB00, the other end of the knob SB00 is connected with a 24L20 wire, the part is used for emergency stop knob detection, the pin I0.1 of the input unit U1 is connected with one end of a knob SA01, the other end of the knob SA01 is connected with a 24L20 wire, the part is used for manual/automatic knob detection, the pin I0.2 of the input unit U1 is connected with one end of a contact switch SB02, the other end of the contact switch SB02 is connected with a 24L20 wire, the part is used for program start contact switch detection, the pin I0.3 of the input unit U1 is connected with one end of a contact switch SB03, the other end of the contact switch SB03 is connected with a 24L20 wire, the part is used for program stop detection, the pin I0.4 of the input unit U1 is connected with one end of a contact switch SB04, the other end of the contact switch SB04 is connected with a 24L20 wire, the part is used for heat pipe overload detection, the pin I0.5 of the input unit U1 is connected with one end of a contact switch SB05, the other end of the contact switch SB05 is connected to a 24L20 line, which is used for the detection of the overload of the jet pump, the pin I0.6 of the input unit U1 is connected to one end of the contact switch SB06, the other end of the contact switch SB06 is connected to a 24L20 line, which is used for the detection of the overload of the heater core, the pin I0.7 of the input unit U1 is connected to one end of the contact switch SB07, the other end of the contact switch SB07 is connected to a 24L20 line, which is used for the detection of the overload of the blower, the pin I1.0 of the input unit U1 is connected to one end of the contact switch SB08, the other end of the contact switch SB08 is connected to a 24L20 line, which is used for the detection of the overload of the drain pump, the pin I1.1 of the input unit U1 is connected to one end of the contact switch SQ10, the other end of the contact switch SQ10 is connected to a 24L20 line, which is used for the detection of the low liquid level, the other end of the input unit U1 is connected to one end of the contact switch SQ11, the 24L20 line, which is used for the high detection, the pin I1.3 of the input unit U1 is connected to one end of a contact switch SB09, and the other end of the contact switch SB09 is connected to a 24L20 line, which is used for ultrasonic overload detection.

Further, the central processing unit CPU further includes an output unit U2, the output unit U2 is used for controlling the heating pipe, the injection pump, the heating core, the blower, the drain pump, the pulse valve, the drying valve, the water inlet valve, the drain valve, the air inlet valve, the ultrasonic wave, the program start, and the program stop indicator lamp; the 1 pin and the 11 pin of the output unit U2 are connected with a 24L20 wire, this part is used for a common terminal wire of the output unit U2, the Q0.0 pin of the output unit U2 is connected with the 3 pin of the intermediate relay coil KA000, the 4 pin of the intermediate relay coil KA000 is connected with an M2 wire, the 2 pin of the intermediate relay coil KA000 is connected with an L300 wire, the 1 pin of the intermediate relay coil KA000 is connected with one end of the contactor KM01 coil, the other end of the contactor KM01 coil is connected with an N zero wire, this part is used for the control of heater starting, the Q0.1 pin of the output unit U2 is connected with the 3 pin of the intermediate relay coil KA001, the 4 pin of the intermediate relay coil KA001 is connected with an M2 wire, the 2 pin of the intermediate relay coil KA001 is connected with an L300 wire, the 1 pin of the intermediate relay coil KA001 is connected with one end of the contactor KM02 coil, the other end of the contactor KM02 coil is connected with an N zero wire, this part is used for the control of jet pump starting, the Q0.2 pin of the output unit U2 is connected with the 3 pin of the intermediate relay coil 002, the 4 pins of the intermediate relay coil KA002 are connected with an M2 wire, the 2 pins of the intermediate relay coil KA002 are connected with a 24L20 wire, the 1 pin of the intermediate relay coil KA002 is connected with one end of the coil of the contactor KM03, the other end of the coil of the contactor KM03 is connected with a zero N wire, the part is used for controlling the starting of the heating core, the Q0.3 pin of the output unit U2 is connected with the 3 pins of the intermediate relay coil KA003, the 4 pins of the intermediate relay coil KA003 are connected with the M2 wire, the 2 pin of the intermediate relay coil KA003 is connected with the L300 wire, the 1 pin of the intermediate relay coil KA003 is connected with one end of the coil of the contactor KM04, the other end of the coil of the contactor KM04 is connected with the zero N wire, the part is used for controlling the starting of the blower, the Q0.4 pin of the output unit U2 is connected with the 3 pins of the intermediate relay coil KA004, the 4 pins of the intermediate relay coil KA004 is connected with the M2 wire, and the 2 pin of the intermediate relay coil KA004 is connected with the L300 wire, a pin 1 of the intermediate relay coil KA004 is connected with one end of a coil of the contactor KM05, and the other end of the coil of the contactor KM05 is connected with a neutral line N, and the neutral line N is used for starting and controlling the drainage pump.

Further, a pin Q0.5 of the output unit U2 is connected to a pin 3 of the intermediate relay coil KA005, a pin 4 of the intermediate relay coil KA005 is connected to a line M2, a pin 2 of the intermediate relay coil KA005 is connected to a line 24l20, a pin 1 of the intermediate relay coil KA005 is connected to one end of the electromagnetic valve YV1, the other end of the electromagnetic valve YV1 is connected to a line M2, which is used for control of pulse valve actuation, a pin Q0.6 of the output unit U2 is connected to a pin 3 of the intermediate relay coil KA006, a pin 4 of the intermediate relay coil KA006 is connected to a line M2, a pin 2 of the intermediate relay coil KA006 is connected to a line 24l20, a pin 1 of the intermediate relay coil KA006 is connected to one end of the electromagnetic valve YV2, the other end of the electromagnetic valve YV2 is connected to a line M2, which is used for control of valve actuation, a pin Q0.7 of the output unit U2 is connected to a pin 3 of the intermediate relay coil KA007, a pin 4 of the intermediate relay coil 007 is connected to a line M2, a pin 2 of the intermediate relay coil KA007 is connected with a wire 24l20, a pin 1 of the intermediate relay coil KA007 is connected with one end of a solenoid valve YV3, the other end of the solenoid valve YV3 is connected with a wire M2, the other end of the solenoid valve YV3 is used for controlling the starting of a water inlet valve, a pin Q1.0 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA010, a pin 4 of the intermediate relay coil KA010 is connected with a wire M2, a pin 2 of the intermediate relay coil KA010 is connected with a wire 24l20, a pin 1 of the intermediate relay coil KA010 is connected with one end of a solenoid valve YV4, the other end of the solenoid valve YV4 is connected with a wire M2, the other end of the output unit U2 is used for controlling the starting of a water outlet valve, a pin Q1.1 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA011, a pin 4 of the intermediate relay coil KA 2 is connected with a wire M KA 2, a pin 2 of the intermediate relay coil KA011 is connected with a pin 24l20, a pin 1 of the intermediate relay coil 011 is connected with one end of a solenoid valve YV5, and the other end of the intermediate relay coil YV5 is connected with a wire M2, this part is used for the control that the admission valve starts, the Q1.2 foot of output unit U2 connects 3 feet of auxiliary relay coil KA012, the M2 line is connected to 4 feet of auxiliary relay coil KA012, the L300 line is connected to 2 feet of auxiliary relay coil KA012, one end of solenoid valve YV6 is connected to 1 foot of auxiliary relay coil KA011, the N zero line is connected to the other end of solenoid valve YV6, this part is used for the control that the ultrasonic wave starts, the Q1.3 foot of output unit U2 connects 3 feet of auxiliary relay coil KA013, 4 feet of auxiliary relay coil KA013 connects M2 line, 2 feet of auxiliary relay coil KA013 connects 24L20 line, 1 foot of auxiliary relay coil KA013 connects one end of solenoid valve YV7, the M2 line is connected to the other end of solenoid valve YV7, this part is used for the control that the drain valve starts, the Q1.4 foot of output unit U2 connects one end of pilot lamp L1, the other end of pilot lamp L1 connects the M2 line, this part is used for the control that the program starts the pilot lamp, the control that the pilot lamp U2 is used for the program starts the pilot lamp, the pilot lamp of output unit U2 lamp U2 is connected one end of L1, this part is used for the control that the program stops the pilot lamp L2 line.

Furthermore, the input end of the analog quantity unit U3 is connected with water temperature, air pressure and back pressure sensors and is used for collecting analog quantity signals of the water temperature, the air pressure and the back pressure and transmitting the processed data to the central processing unit CPU.

Further, the L + pin and the M pin of the analog quantity unit U3 are connected with a 24L22 line and an M2 line, the part is used for a power supply of the analog quantity unit U3, the 0+ pin and the 0-pin of the analog quantity unit U3 are connected with water temperature sensor signals, the part is used for collecting water temperature analog quantity signals, the 1+ pin and the 1-pin of the analog quantity unit U3 are connected with air temperature sensor signals, the part is used for collecting air temperature analog quantity signals, the 2+ pin and the 2-pin of the analog quantity unit U3 are connected with air pressure sensor signals, the part is used for collecting air pressure analog quantity signals, and the 3+ pin and the 3-pin of the analog quantity unit U3 are connected with back pressure sensor signals, and the part is used for collecting back pressure analog quantity signals.

An implementation method of a control system of a DPF cleaning machine comprises the following steps:

before starting the DPF cleaning machine, firstly, checking whether the DPF is unobstructed by using a probe, checking whether the DPF is burnt or not, and checking whether the DPF has a cleaning value or not, and if so, performing a cleaning step;

the first step is as follows: clamping the DPF on a tool, enabling an air inlet to face upwards and an air outlet to face downwards, connecting a tap water pipe and a drain pipe, opening a tap water valve, preparing, clicking an automatic button on a touch screen, automatically opening a water inlet valve and a pulse valve by a machine, carrying out pulse cleaning on the DPF according to set times, automatically opening a drain valve and a drain pump by the machine when detecting that the liquid level in a water tank reaches a high liquid level, reducing the liquid level in the water tank to be below a set low liquid level, and then automatically closing the drain valve and the drain pump, so that most of carbon deposit and ash in the DPF is flushed out;

the second step is that: after the first step of pulse is finished, closing a pulse valve, opening a draining valve to drain all the water in a water tank, closing the draining valve to prompt the addition of cleaning liquid, then opening a water inlet valve, when the liquid level in the water tank reaches a high liquid level, starting a heating pipe, starting ultrasonic waves, starting the pulse valve, cleaning a DPF by a DPF cleaning machine while heating, and performing pulse and ultrasonic cleaning, after the set time of circulating cleaning, closing the heating pipe, closing the ultrasonic waves, closing the pulse valve, opening the draining valve to discharge and collect wastewater, and observing the cleaning condition; if the cleaning is not finished, pressing a return button, and repeating the second step;

the third step: thirdly, firstly, repeating the first step, flushing out residual cleaning liquid by pulse while feeding water, and then blowing out most of accumulated water in the DPF by using an air gun;

the fourth step: baking: after the third part is finished, the heating core, the drying valve and the blower are started, and after the set time is reached, the heating core, the drying valve and the blower are stopped to rapidly dry the DPF;

the fifth step: after the fourth step of drying is finished, the inspection mechanism is installed, the blower and the drying valve are opened for 5 minutes, pressure difference detection is carried out on the DPF, and an instantaneous numerical value is read; and finally, detecting whether a local light source penetrates through the interior by a light source, wherein the existence of the light source penetration indicates whether the interior is damaged or not.

By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:

1. be equipped with anchor clamps clamp plate and anchor clamps bottom plate in this cleaning machine, can be with DPF device monolithic stationary on the diesel engine between the two, be equipped with the washing liquid in the middle of the bottom of anchor clamps bottom plate and import and export, consequently need not to disassemble DPF and just can wash it, when DPF overlength or be difficult to follow the automobile body and wholly dismantle, still can wash DPF through the outside circulating line of machine to efficiency when wasing has been improved.

2. Be equipped with ultrasonic wave and pulse cleaning system flow among this control system, can pulse and ultrasonic cleaning to DPF with the mode of clear water and addition cleaner, do not harm DPF inner wall noble metal, can make some be difficult to dissolve in the DPF or high temperature resistant material carry out effective thorough cleaing away, effectively avoid the organic gas emission of high temperature calcination in-process, safety ring protects.

3. This operating system adopts six integrative designs, can block up the condition with the inspection DPF, water atmospheric pressure pulse, cleaner and clear water washing, the air blows, heating is dried and cleaning performance detects to melt and is a whole, can realize intelligent constant temperature heating when wasing, can fast drying after wasing finishing, and to the backpressure that realizes intellectuality to abluent effect detects, removed from when wasing DPF, and it realizes required function to increase extra equipment or control system.

4. The control system has low installed power and low running cost, can ensure that the dust cleaning effect reaches more than 98 percent, shortens the cleaning time of the DPF when the ash cleaning operation is less than 120 minutes, and improves the cleaning effect.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of the structure of a cleaning machine according to the present invention;

FIG. 2 is an electrical schematic of a portion of the power module of the washer control system of the present invention;

FIG. 3 is a first electrical schematic diagram of a main control module portion of the washer control system of the present invention;

FIG. 4 is a second electrical schematic diagram of a portion of a main control module of the washer control system of the present invention;

FIG. 5 is a third electrical schematic diagram of the main control module portion of the washer control system of the present invention.

Detailed Description

As shown in fig. 1, a DPF cleaning machine includes a fixing mechanism, a cleaning mechanism, and a drying checking mechanism;

the fixing mechanism is used for fixing the whole DPF in the cleaning agent device and is in butt joint with the cleaning mechanism for cleaning;

the cleaning mechanism is used for carrying out primary cleaning, deep cleaning and flushing and draining cleaning on the integrally fixed DPF;

and the drying and checking mechanism is used for drying the cleaned DPF internally and checking the cleaning effect through circulating air.

The fixing mechanism comprises a cleaning box body 1, a clamp bottom plate 3 is arranged in the cleaning box body 1, a water tank 10 and a clamp pressing plate 6 are arranged on the clamp bottom plate 3, a clamp water through hole 4 is formed in the center of the clamp bottom plate 3, screw rods 5 are symmetrically arranged on two sides of the upper portion of the clamp bottom plate 3, the water tank 10 is arranged below the clamp bottom plate 3, a 1# temperature sensor 9 is arranged in the middle of the water tank 10, the 1# temperature sensor 9 is connected with a control system and used for detecting the temperature of cleaning liquid in the water tank 10, a liquid level sensor 8 is arranged at the bottom end of the water tank 10 and connected with the control system and used for detecting the liquid level of the cleaning liquid in the water tank 10, a heating pipe 7 is further arranged at the bottom of the water tank 10 and used for heating the cleaning liquid in the water tank 10, when the DPF is fixed, the DPF is integrally placed on the upper surface of the clamp bottom plate 3, a DPF air inlet is vertically arranged upwards, the clamp pressing plate 6 is pressed at the upper end of the DPF and is respectively sleeved on the screw rods 5 through holes at two ends of the DPF, nuts are arranged on the through holes of the clamp pressing plate 6, the clamp bottom plate 3, the DPF is used for avoiding the cleaning liquid flushed from the cleaning liquid, and the resistance when the DPF is reduced.

The wiper mechanism includes that the clear water washes the structure, and the clear water washes the structure and includes inlet tube 23, and inlet tube 23 one end stretches out the external tap water pipeline of connecting of cleaning machine, and anchor clamps limbers 4 is connected to the other end, is equipped with water intaking valve 28 on inlet tube 23, the clear water washes the structure and still includes drain pipe 11, and water tank 10 is connected to drain pipe 11 one end, and the other end stretches out the cleaning machine outside, is equipped with drain valve 12 and drain pump 13 on the drain pipe 11, when carrying out the clear water to DPF and washing, water intaking valve 28 is opened, inside getting into the DPF through anchor clamps limbers 4, inside through outer overflow inflow water tank on the DPF, when the water tank 10 liquid level reaches the take the altitude, drain valve 12 and drain pump 13 are opened simultaneously, get rid of the cleaning machine outside with unnecessary water, when the water tank 10 liquid level descends the take the altitude, drain valve 12 and drain pump 13 are closed simultaneously.

The wiper mechanism still washs the structure including the circulation, the circulation is washd the structure and is included jet pump 14, the import of 14 exit linkage filter cores of jet pump 15, the exit linkage second check valve 16's of filter core 15 import, the export of second check valve 16 is connected to anchor clamps limbers 4 department through one section pipe connection, the import of jet pump 14 is through the bottom of one section pipeline return water tank 10, when the clear water is washed, water tank 10 liquid level reaches the take the altitude, control system opens circulation washing structure, jet pump 14 opens, the clear water that takes out from return water tank 10 through jet pump 14 can be through the filtration of filter core 15, the DPF on anchor clamps bottom plate 13 is flowed through again to second check valve 16, in the return water tank 10 that flows back again, can reach a circulation abluent effect.

The pulse is washd including overhead tank 22, the compressed air of certain pressure has been stored in overhead tank 22, 18 one end of pulse valve are connected to overhead tank 22, the import of first check valve 17 is connected to the pulse valve 18 other end, the export of first check valve 17 is through one section pipe connection anchor clamps limbers 4, when washing and the abluent in-process of circulation, in order to strengthen abluent effect, control system can regularly open and close pulse valve 18, 22 compressed air can promote rivers with the form of pulse air current in the overhead tank, the pulse rivers of formation are washed DPF, first check valve 17 makes rivers can not flow backwards in overhead tank 22.

The cleaning mechanism further comprises an ultrasonic cleaning structure, the ultrasonic cleaning machine comprises an ultrasonic device 27, the ultrasonic device is located at the bottom of the cleaning box body 1 and used for applying ultrasonic impact to the DPF through cleaning liquid, and the DPF is cleaned more thoroughly.

The wiper mechanism still includes the outside washing structure, the outside washing structure includes outside inlet tube 33, outside wet return 34 and silica gel ball pipe connector 32, silica gel ball pipe connector 32 is connected to outside inlet tube 33 one end and 34 one end of outside wet return, when DPF is too long or inconvenient when dismantling from the car, accessible outside washing structure washs DPF, insert in the DPF inlet port with the silica gel ball pipe connector 32 of outside inlet tube 33 one end, the other end of outside inlet tube 33 is connected to the water pipe on, insert in the DPF outlet port with the silica gel ball pipe connector 32 of 34 one end of outside wet return, insert in the water tank 10 with the other end of outside wet return 34, so as to realize the washing at the machine outside to DPF for the circulation pipeline.

The drying and checking mechanism comprises an air blower 21, wherein the air blower 21 is connected with one end of a heating core 20, the other end of the heating core 20 is connected with one end of a drying valve 19, the other end of the drying valve 19 is connected with one end of a drying pipeline 31, the other end of the drying pipeline 31 is connected with a clamp water through hole 4, a No. 2 temperature sensor 30 is arranged on the drying pipeline 31 and connected with a control system for detecting the temperature of drying gas in the drying pipeline 31, the drying and checking mechanism further comprises a draining pipe 24, one end of the draining pipe 24 is connected with the clamp water through hole 4, the other end of the draining pipe 24 extends out of the cleaning machine, a draining valve 29 is arranged on the draining pipe 24, when the cleaned DPF contains certain moisture, in order to quickly dry the DPF, the draining valve 29 is firstly opened to drain the water in the water tank 10, then the heating core 20, the air blower 21 and the drying valve 19 are started, and the DPF is quickly dried through the drying pipeline 31.

Stoving accredited testing organization still includes circular apron 2, is equipped with air-supply line 25 and return air duct 26 on the circular apron 2, is equipped with differential pressure table 35 between air-supply line 25 and the return air duct 26, when the cleaning performance at the test DPF, places circular apron 2 fastening under anchor clamps clamp plate 6, blows to the DPF through air-supply line 25, just can judge the cleaning performance of DPF through the registration of observing on the differential pressure table 35.

A control system of a cleaning machine comprises a power supply module and a main control module, wherein the power supply module supplies power for the control system, and the main control module is used for sending control signals and acquiring signals of digital quantity and analog quantity.

As shown in fig. 2, the three-phase power supply comprises an L1 line, an L2 line and an L3 line, the L1 line, the L2 line, the L3 line and the zero line of the three-phase power supply are connected with one end of a breaker QF0, the other end of the breaker QF0 is connected with a U1 line, a V1 line, a W1 line and a zero line of the three-phase power supply, the U1 line, the V1 line and the W1 line are connected with one end of a breaker QF01, the other end of the breaker QF01 is connected with one end of a contactor KM01, the other end of the contactor KM01 is connected with a heating tube, a casing of the heating tube is further connected with a PE ground wire, the U1 line, the V1 line and the W1 line are connected with one end of a breaker QF02, the other end of the breaker QF02 is connected with one end of a contactor KM02, the other end of the contactor KM02 is connected with a heating core, the casing of the heating core is further connected with a PE ground wire, the casing of the heating core is further connected with a power supply and the casing is provided with live protection, the U1 line and the casing is connected with one end of the heating core, the U1 line and the V1 line are connected with one end of the breaker QF03, the other end of the breaker QF03 is connected with one end of a contactor KM03, the other end of the contactor KM03 is connected with an air blower, the shell of the air blower is also connected with a PE ground wire, the part is used for providing power supply and shell live protection for the air blower, the U1 wire and the N zero wire are connected with one end of the breaker QF04, the other end of the breaker QF04 is connected with one end of a contactor KM04, the other end of the contactor KM04 is connected with an injection pump, the shell of the injection pump is also connected with the PE ground wire, the part is used for providing power supply and shell live protection for the injection pump, the U1 wire and the N zero wire are connected with one end of a breaker QF05, the other end of the breaker QF05 is connected with one end of a contactor KM05, the other end of the contactor KM05 is connected with a drainage pump, the shell of the drainage pump is also connected with the PE ground wire, the part is used for providing power supply and shell live protection for the drainage pump, the U1 wire and the N zero wire are connected with one end of a breaker QF06, the other end of the contactor KM06 is connected with an ultrasonic generator, the ultrasonic generator shell is further connected with a PE ground wire, the part is used for providing power and shell electrified protection for the ultrasonic generator, one end of a breaker QF07 is connected with a U1 wire and a N zero line in the three-phase power supply, the other end of the breaker QF07 is connected with one end of a switch power supply, the other end of the switch power supply is connected with a 24L20 wire and an M2 wire, the part is used for providing power for a touch screen, a relay and an electromagnetic valve, one end of a breaker QF08 is connected with the V1 wire and the N zero line in the three-phase power supply, the other end of the breaker QF08 is connected with an L300 wire and the N zero line, and the part is used for providing power for a contactor.

The main control module comprises a Central Processing Unit (CPU), the Central Processing Unit (CPU) comprises an input unit U1, the type of the input unit U1 is 6ES7288-1SR40-0AA0, and the input unit U1 is used for detecting the running states of an emergency stop knob, a manual/automatic knob, a program starting contact switch, a program stopping contact switch, an overload contact switch and a liquid level contact switch.

The CPU also comprises an output unit U2, the model of the output unit U2 is 6ES7288-1SR40-0AA0, and the output unit U2 is used for controlling the heating pipe, the injection pump, the heating core, the blower, the drainage pump, the pulse valve, the drying valve, the water inlet valve, the drainage valve, the air inlet valve, the ultrasonic wave, the program start and the program stop indicator lamp.

The main control module further comprises an analog quantity unit U3, the model of the analog quantity unit U3 is 6ES7288-3AE04-0AA0, and the analog quantity unit U3 is used for collecting analog quantity signals and transmitting the processed data to the central processing unit CPU.

As shown in fig. 3, the pin I0.0 of the input unit U1 is connected to one end of a knob SB00, the other end of the knob SB00 is connected to a 24L20 line, this portion is used for emergency stop knob detection, the pin I0.1 of the input unit U1 is connected to one end of a knob SA01, the other end of the knob SA01 is connected to a 24L20 line, this portion is used for manual/automatic knob detection, the pin I0.2 of the input unit U1 is connected to one end of a contact switch SB02, the other end of the contact switch SB02 is connected to a 24L20 line, this portion is used for program start contact switch detection, the pin I0.3 of the input unit U1 is connected to one end of a contact switch SB03, the other end of the contact switch SB03 is connected to a 24L20 line, this portion is used for program stop detection, the pin I0.4 of the input unit U1 is connected to one end of a contact switch SB04, the other end of the contact switch SB04 is connected to a 24L20 line, this portion is used for heater overload detection, the pin I0.5 of the input unit U1 is connected to one end of a contact switch SB05, the other end of the contact switch SB05 is connected to a 24L20 line, which is used for the detection of the overload of the jet pump, the pin I0.6 of the input unit U1 is connected to one end of the contact switch SB06, the other end of the contact switch SB06 is connected to a 24L20 line, which is used for the detection of the overload of the heater core, the pin I0.7 of the input unit U1 is connected to one end of the contact switch SB07, the other end of the contact switch SB07 is connected to a 24L20 line, which is used for the detection of the overload of the blower, the pin I1.0 of the input unit U1 is connected to one end of the contact switch SB08, the other end of the contact switch SB08 is connected to a 24L20 line, which is used for the detection of the overload of the drain pump, the pin I1.1 of the input unit U1 is connected to one end of the contact switch SQ10, the other end of the contact switch SQ10 is connected to a 24L20 line, which is used for the detection of the low liquid level, the pin I1.2 of the input unit U1 is connected to one end of the contact switch SQ11, and the other end of the contact switch SQ11 is connected to a 24L20 line, the part is used for detecting liquid level height, the pin I1.3 of the input unit U1 is connected with one end of a contact switch SB09, the other end of the contact switch SB09 is connected with a 24L20 line, and the part is used for detecting ultrasonic overload.

As shown in fig. 4, the pin 1 and the pin 11 of the output unit U2 are connected to a 24L20 line, this part is used for a common terminal line of the output unit U2, the pin Q0.0 of the output unit U2 is connected to a pin 3 of the KA000 intermediate relay coil, the pin 4 of the KA000 intermediate relay coil is connected to a M2 line, the pin 2 of the KA000 intermediate relay coil is connected to a L300 line, the pin 1 of the KA000 intermediate relay coil is connected to one end of the KM01 coil, the other end of the KM01 coil is connected to a neutral N line, this part is used for control of heater starting, the pin Q0.1 of the output unit U2 is connected to a pin 3 of the KA001 intermediate relay coil, the pin 4 of the KA001 intermediate relay coil is connected to a M2 line, the pin 2 of the KA001 intermediate relay coil is connected to a line, the pin 1 of the KA001 intermediate relay coil is connected to one end of the KM02 coil, the other end of the KM02 coil is connected to a neutral N line, this part is used for control of jet pump starting, the pin Q0.2 of the output unit U2 is connected with the pin 3 of the intermediate relay coil KA002, the pin 4 of the intermediate relay coil KA002 is connected with the wire M2, the pin 2 of the intermediate relay coil KA002 is connected with the wire 24L20, the pin 1 of the intermediate relay coil KA002 is connected with one end of the coil KM03, the other end of the coil KM03 is connected with the zero line N, the part is used for controlling the starting of the heating core, the pin Q0.3 of the output unit U2 is connected with the pin 3 of the intermediate relay coil KA003, the pin 4 of the intermediate relay coil KA003 is connected with the wire M2, the pin 2 of the intermediate relay coil KA003 is connected with the wire L300, the pin 1 of the intermediate relay coil KA003 is connected with one end of the coil KM04, the other end of the coil KM04 is connected with the zero line N, the part is used for controlling the starting of the blower, the pin Q0.4 of the output unit U2 is connected with the pin 3 of the coil KA004, the pin 4 of the intermediate relay coil KA is connected with the wire M2, a pin 2 of the intermediate relay coil KA004 is connected with a line L300, a pin 1 of the intermediate relay coil KA004 is connected with one end of a coil of a contactor KM05, the other end of the coil of the contactor KM05 is connected with a zero line N, and the zero line N is used for starting and controlling a drainage pump.

A pin Q0.5 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA005, a pin 4 of the intermediate relay coil KA005 is connected with a wire M2, a pin 2 of the intermediate relay coil KA005 is connected with a wire 24l20, a pin 1 of the intermediate relay coil KA005 is connected with one end of the electromagnetic valve YV1, the other end of the electromagnetic valve YV1 is connected with a wire M2, the part is used for controlling the start of the pulse valve, a pin Q0.6 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA006, a pin 4 of the intermediate relay coil KA006 is connected with a wire M2, a pin 2 of the intermediate relay coil KA006 is connected with a wire 24l20, a pin 1 of the intermediate relay coil KA006 is connected with one end of the electromagnetic valve YV2, the other end of the electromagnetic valve YV2 is connected with a wire M2, the part is used for controlling the start of the drying valve KA, a pin Q0.7 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA007, a pin 4 of the intermediate relay coil 007 is connected with a wire M2, a 24l20 line is connected to a pin 2 of the intermediate relay coil KA007, a pin 1 of the intermediate relay coil KA007 is connected to one end of the solenoid valve YV3, and the other end of the solenoid valve YV3 is connected to the M2 line, which is used for controlling the start of the water inlet valve, a pin Q1.0 of the output unit U2 is connected to a pin 3 of the intermediate relay coil KA010, a pin 4 of the intermediate relay coil KA010 is connected to the M2 line, a pin 2 of the intermediate relay coil KA010 is connected to a 24l20 line, a pin 1 of the intermediate relay coil KA010 is connected to one end of the solenoid valve YV4, and the other end of the solenoid valve YV4 is connected to the M2 line, which is used for controlling the start of the water discharge valve, a pin Q1.1 of the output unit U2 is connected to a pin 3 of the intermediate relay coil KA011, a pin 4 of the intermediate relay coil KA 2 line, a pin 2 of the intermediate relay coil KA011 is connected to a 24l20 line, a pin 1 of the intermediate relay coil KA011 is connected to one end of the solenoid valve YV5, and the other end of the solenoid valve YV5 is connected to the M2 line, this part is used for the control that the admission valve starts, the 3 feet of intermediate relay coil KA012 are connected to output unit U2's Q1.2 foot, M2 line is connected to intermediate relay coil KA 012's 4 feet, L300 line is connected to intermediate relay coil KA 012's 2 feet, the one end of solenoid valve YV6 is connected to intermediate relay coil KA 011's 1 foot, the N zero line is connected to solenoid valve YV 6's the other end, this part is used for the control that the ultrasonic wave starts, output unit U2's Q1.3 foot is connected 3 feet of intermediate relay coil KA013, M2 line is connected to intermediate relay coil KA 013's 4 feet, intermediate relay coil KA 013's 2 foot is connected 24L20 line, intermediate relay coil KA 013's 1 foot is connected one end of solenoid valve YV7, the other end of solenoid valve YV7 is connected M2 line, this part is used for the control that the waterlogging caused by boiling-drop valve starts, output unit U2's Q1.4 foot connection pilot lamp L1's one end, pilot lamp L1 line is connected to pilot lamp L2 line, this part is used for the other end of program start pilot lamp L2 connection pilot lamp L2, this part is used for stopping program control.

The input end of the analog quantity unit U3 is connected with the water temperature, air pressure and back pressure sensors and is used for collecting analog quantity signals of the water temperature, the air pressure and the back pressure and transmitting the processed data to the central processing unit CPU.

As shown in fig. 5, the L + pin and the M pin of the analog quantity unit U3 are connected to the 24L22 line and the M2 line, this part is used for the power supply of the analog quantity unit U3, the 0+ and 0-pins of the analog quantity unit U3 are connected to the water temperature sensor signal, this part is used for collecting the water temperature analog quantity signal, the 1+ and 1-pins of the analog quantity unit U3 are connected to the air temperature sensor signal, this part is used for collecting the air temperature analog quantity signal, the 2+ and 2-pins of the analog quantity unit U3 are connected to the air pressure sensor signal, this part is used for collecting the air pressure analog quantity signal, and the 3+ and 3-pins of the analog quantity unit U3 are connected to the back pressure sensor signal, and this part is used for collecting the back pressure analog quantity signal.

To further illustrate the control system of the DPF cleaning machine and the implementation method thereof, the steps of the implementation method will be described as follows.

Before starting the DPF cleaning machine, firstly, checking whether the DPF is unobstructed by using a probe, checking whether the DPF is burnt or not, and checking whether the DPF has a cleaning value or not, and if so, performing a cleaning step;

the first step is as follows: clamping the DPF on a tool, enabling an air inlet to face upwards and an air outlet to face downwards, connecting a tap water pipe and a drain pipe, opening a tap water valve, preparing, clicking an automatic button on a touch screen, automatically opening a water inlet valve and a pulse valve by a machine, carrying out pulse cleaning on the DPF according to set times, automatically opening a drain valve and a drain pump by the machine when detecting that the liquid level in a water tank reaches a high liquid level, reducing the liquid level in the water tank to be lower than a set low liquid level, and then automatically closing the drain valve and the drain pump, so that most of carbon deposit and ash in the DPF is flushed out;

the second step is that: after the first step of pulse is finished, closing a pulse valve, opening a draining valve to drain all the water in a water tank, closing the draining valve to prompt the addition of cleaning liquid, then opening a water inlet valve, when the liquid level in the water tank reaches a high liquid level, starting a heating pipe, starting ultrasonic waves, starting the pulse valve, cleaning a DPF by a DPF cleaning machine while heating, and performing pulse and ultrasonic cleaning, after the set time of circulating cleaning, closing the heating pipe, closing the ultrasonic waves, closing the pulse valve, opening the draining valve to discharge and collect wastewater, and observing the cleaning condition; if the cleaning is not finished, pressing a return button, and repeating the second step;

the third step: thirdly, repeating the first step, flushing out the residual cleaning solution by pulse while feeding water, and then blowing out most of accumulated water in the DPF by using an air gun;

the fourth step: after the third part is finished, the heating core, the drying valve and the blower are started, and after the set time is reached, the heating core, the drying valve and the blower are stopped to rapidly dry the DPF;

the fifth step: after the fourth step of drying is finished, the inspection mechanism is installed, the blower and the drying valve are opened for 5 minutes, pressure difference detection is carried out on the DPF, and an instantaneous numerical value is read; finally, detecting whether a local light source penetrates through the interior by a light source, wherein the penetration of the light source indicates whether the interior is damaged or not;

the description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (8)

1. The utility model provides a control system of DPF cleaning machine which characterized in that: the system comprises a power supply module and a main control module;

the power supply module comprises a three-phase power supply, an N zero line and a PE ground wire, wherein the three-phase power supply and the N zero line are connected with one end of a breaker, the other end of the breaker is connected with one end of a contactor, the other end of the contactor is also connected with a heating pipe, a heating core, a blower, an injection pump, a drainage pump and an ultrasonic generator and used for supplying power to the heating pipe, the heating core, the blower, the injection pump, the drainage pump and the ultrasonic generator, and the other end of the breaker is also connected with one end of a switching power supply and used for supplying power to a touch screen, an electromagnetic valve and a relay;

the main control module comprises a Central Processing Unit (CPU) and an analog quantity unit U3, wherein the analog quantity unit U3 is used for collecting analog quantity signals and transmitting processed data to the CPU.

2. The control system for a DPF cleaning machine as recited in claim 1, wherein the three-phase power source includes L1, L2 and L3 lines, the L1, L2, L3 and neutral lines of the three-phase power source are connected to one end of a breaker QF0, the other end of the breaker QF0 is connected to one end of a three-phase power source, the U1, V1, W1 and neutral lines are connected to one end of a breaker QF01, the other end of the breaker QF01 is connected to one end of a contactor KM01, the other end of the contactor KM01 is connected to a heater tube, the heater tube case is further connected to a PE ground, the section for supplying power to the heater tube and protecting the case from electrification, the U1, V1 and W1 lines are connected to one end of a breaker QF02, the other end of the breaker QF02 is connected to one end of a contactor KM02, the other end of the contactor KM02 is connected to a heater core, the heater core case is further connected to a PE ground, the section for supplying power to the heater core and protecting the case from electrification, the U1 line and the V1 line are connected with one end of a breaker QF03, the other end of the breaker QF03 is connected with one end of a contactor KM03, the other end of the contactor KM03 is connected with an air blower, a PE ground wire is further connected with a shell of the air blower, the part is used for providing power supply and shell live protection for the air blower, the U1 line and a N zero line are connected with one end of a breaker QF04, the other end of the breaker QF04 is connected with one end of a contactor KM04, the other end of the contactor KM04 is connected with an injection pump, the shell of the injection pump is further connected with a PE ground wire, the part is used for providing power supply and shell live protection for the injection pump, the U1 line and the N zero line are connected with one end of a breaker QF05, the other end of the breaker QF05 is connected with one end of a contactor KM05, the other end of the contactor KM05 is connected with a drainage pump, the shell of the drainage pump is further connected with a PE ground wire, the part is used for providing power supply and shell live protection for the drainage pump, the U1 line and the N zero line are connected with one end of a breaker 06, the other end of the breaker QF06, an ultrasonic generator is connected to the other end of the contactor KM06, a PE ground wire is further connected to an outer shell of the ultrasonic generator, the part is used for providing power and shell electrified protection for the ultrasonic generator, one end of a breaker QF07 is connected to a U1 line and a zero line N in a three-phase power supply, one end of the breaker QF07 is connected to the other end of the breaker QF07, a 24L20 line and an M2 line are connected to the other end of the switch power supply, the part is used for providing power for a touch screen, a relay and an electromagnetic valve, one end of a breaker QF08 is connected to the V1 line and the zero line N in the three-phase power supply, the other end of the breaker QF08 is connected with an L300 line and the zero line N, and the part is used for providing power for the contactor.

3. The control system of a DPF cleaning machine according to claim 1, wherein: the central processing unit CPU comprises an input unit U1, and the input unit U1 is used for detecting the running states of an emergency stop knob, a manual/automatic knob, a program starting contact switch, a program stopping contact switch, an overload contact switch and a liquid level contact switch; the pin I0.0 of the input unit U1 is connected with one end of a knob SB00, the other end of the knob SB00 is connected with a 24L20 wire, the part is used for emergency stop knob detection, the pin I0.1 of the input unit U1 is connected with one end of a knob SA01, the other end of the knob SA01 is connected with a 24L20 wire, the part is used for manual/automatic knob detection, the pin I0.2 of the input unit U1 is connected with one end of a contact switch SB02, the other end of the contact switch SB02 is connected with a 24L20 wire, the part is used for program start contact switch detection, the pin I0.3 of the input unit U1 is connected with one end of a contact switch SB03, the other end of the contact switch SB03 is connected with a 24L20 wire, the part is used for program stop detection, the pin I0.4 of the input unit U1 is connected with one end of a contact switch SB04, the other end of the contact switch SB04 is connected with a 24L20 wire, the part is used for heating tube overload detection, the pin I0.5 of the input unit U1 is connected with one end of a contact switch SB05, the other end of the contact switch SB05 is connected to a 24L20 line, which is used for the over load detection of the jet pump, the pin I0.6 of the input unit U1 is connected to one end of the contact switch SB06, the other end of the contact switch SB06 is connected to a 24L20 line, which is used for the over load detection of the heater core, the pin I0.7 of the input unit U1 is connected to one end of the contact switch SB07, the other end of the contact switch SB07 is connected to a 24L20 line, which is used for the over load detection of the blower, the pin I1.0 of the input unit U1 is connected to one end of the contact switch SB08, the other end of the contact switch SB08 is connected to a 24L20 line, which is used for the over load detection of the drain pump, the pin I1.1 of the input unit U1 is connected to one end of the contact switch SQ10, the other end of the contact switch SQ10 is connected to a 24L20 line, which is used for the low liquid level detection, the pin I1.2 of the input unit U1 is connected to one end of the contact switch SQ11, the other end of the contact switch SQ11 is connected to a 24L20 line, which is used for the high detection, the pin I1.3 of the input unit U1 is connected to one end of a contact switch SB09, and the other end of the contact switch SB09 is connected to a 24L20 line, which is used for ultrasonic overload detection.

4. The control system of a DPF cleaning machine according to claim 1, wherein: the CPU also comprises an output unit U2, and the output unit U2 is used for controlling the heating pipe, the jet pump, the heating core, the blower, the drainage pump, the pulse valve, the drying valve, the water inlet valve, the drainage valve, the air inlet valve, the ultrasonic wave, the program start and the program stop indicator lamp; the 1 pin and the 11 pin of the output unit U2 are connected with a 24L20 line, the part is used for a public end connection line of the output unit U2, the Q0.0 pin of the output unit U2 is connected with the 3 pin of the intermediate relay coil KA000, the 4 pin of the intermediate relay coil KA000 is connected with an M2 line, the 2 pin of the intermediate relay coil KA000 is connected with an L300 line, the 1 pin of the intermediate relay coil KA000 is connected with one end of the coil of the contactor KM01, the other end of the coil of the contactor KM01 is connected with an N zero line, the part is used for controlling the starting of a heating pipe, the Q0.1 pin of the output unit U2 is connected with the 3 pin of the intermediate relay coil KA001, the 4 pin of the intermediate relay coil KA001 is connected with the M2 line, the 2 pin of the coil of the intermediate relay KA001 is connected with the L300 line, the 1 pin of the intermediate relay coil 001 is connected with one end of the coil of the contactor KM02, the other end of the coil of the contactor KM02 is connected with the N zero line, the part is used for controlling the starting of the jet pump, the Q0.2 pin of the output unit U2 is connected with the 3 pin of the intermediate relay coil 002, the 4-pin of an intermediate relay coil KA002 is connected with an M2 wire, the 2-pin of an intermediate relay coil KA002 is connected with a 24L20 wire, the 1-pin of an intermediate relay coil KA002 is connected with one end of a contactor KM03 coil, the other end of the contactor KM03 coil is connected with a N zero wire, the part is used for controlling the starting of a heating core, the Q0.3 pin of an output unit U2 is connected with the 3 pin of an intermediate relay coil KA003, the 4 pin of an intermediate relay coil KA003 is connected with the M2 wire, the 2 pin of an intermediate relay coil KA003 is connected with the L300 wire, the 1 pin of the intermediate relay coil KA003 is connected with one end of a contactor KM04 coil, the other end of a contactor KM04 coil is connected with the N zero wire, the part is used for controlling the starting of a blower, the Q0.4 pin of the output unit U2 is connected with the 3 pin of an intermediate relay coil KA004, the 4 pin of the intermediate relay coil KA004 is connected with the M2 wire, and the 2 pin of the intermediate relay coil KA004 is connected with the L300 wire, a pin 1 of the intermediate relay coil KA004 is connected with one end of a coil of the contactor KM05, and the other end of the coil of the contactor KM05 is connected with a neutral line N, and the neutral line N is used for starting and controlling the drainage pump.

5. The control system of a DPF cleaning machine according to claim 1, wherein: a pin Q0.5 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA005, a pin 4 of the intermediate relay coil KA005 is connected with a wire M2, a pin 2 of the intermediate relay coil KA005 is connected with a wire 24l20, a pin 1 of the intermediate relay coil KA005 is connected with one end of the electromagnetic valve YV1, the other end of the electromagnetic valve YV1 is connected with a wire M2, the part is used for controlling the start of the pulse valve, a pin Q0.6 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA006, a pin 4 of the intermediate relay coil KA006 is connected with a wire M2, a pin 2 of the intermediate relay coil KA006 is connected with a wire 24l20, a pin 1 of the intermediate relay coil KA006 is connected with one end of the electromagnetic valve YV2, the other end of the electromagnetic valve YV2 is connected with a wire M2, the part is used for controlling the start of the drying valve KA, a pin Q0.7 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA007, a pin 4 of the intermediate relay coil 007 is connected with a wire M2, a pin 2 of the intermediate relay coil KA007 is connected with a wire 24l20, a pin 1 of the intermediate relay coil KA007 is connected with one end of a solenoid valve YV3, the other end of the solenoid valve YV3 is connected with a wire M2, the other end of the solenoid valve YV3 is used for controlling the starting of a water inlet valve, a pin Q1.0 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA010, a pin 4 of the intermediate relay coil KA010 is connected with a wire M2, a pin 2 of the intermediate relay coil KA010 is connected with a wire 24l20, a pin 1 of the intermediate relay coil KA010 is connected with one end of a solenoid valve YV4, the other end of the solenoid valve YV4 is connected with a wire M2, the other end of the output unit U2 is used for controlling the starting of a water outlet valve, a pin Q1.1 of the output unit U2 is connected with a pin 3 of the intermediate relay coil KA011, a pin 4 of the intermediate relay coil KA 2 is connected with a wire M KA 2, a pin 2 of the intermediate relay coil KA011 is connected with a pin 24l20, a pin 1 of the intermediate relay coil 011 is connected with one end of a solenoid valve YV5, and the other end of the intermediate relay coil YV5 is connected with a wire M2, this part is used for the control that the admission valve starts, the Q1.2 foot of output unit U2 connects 3 feet of auxiliary relay coil KA012, the M2 line is connected to 4 feet of auxiliary relay coil KA012, the L300 line is connected to 2 feet of auxiliary relay coil KA012, one end of solenoid valve YV6 is connected to 1 foot of auxiliary relay coil KA011, the N zero line is connected to the other end of solenoid valve YV6, this part is used for the control that the ultrasonic wave starts, the Q1.3 foot of output unit U2 connects 3 feet of auxiliary relay coil KA013, 4 feet of auxiliary relay coil KA013 connects M2 line, 2 feet of auxiliary relay coil KA013 connects 24L20 line, 1 foot of auxiliary relay coil KA013 connects one end of solenoid valve YV7, the M2 line is connected to the other end of solenoid valve YV7, this part is used for the control that the drain valve starts, the Q1.4 foot of output unit U2 connects one end of pilot lamp L1, the other end of pilot lamp L1 connects the M2 line, this part is used for the control that the program starts the pilot lamp, the control that the pilot lamp U2 is used for the program starts the pilot lamp, the pilot lamp of output unit U2 lamp U2 is connected one end of L1, this part is used for the control that the program stops the pilot lamp L2 line.

6. The method for implementing a control system of a DPF cleaning machine according to claim 1, wherein: the input end of the analog quantity unit U3 is connected with water temperature, air pressure and backpressure sensors and is used for collecting analog quantity signals of the water temperature, the air pressure and the backpressure and transmitting the processed data to the central processing unit CPU.

7. The method for implementing a control system of a DPF cleaning machine according to claim 6, wherein: the analog quantity unit U3 is characterized in that an L + pin and an M pin of the analog quantity unit U3 are connected with a 24L22 wire and an M2 wire, the part is used for a power supply of the analog quantity unit U3, a 0+ pin and a 0-pin of the analog quantity unit U3 are connected with water temperature sensor signals, the part is used for collecting water temperature analog quantity signals, a 1+ pin and a 1-pin of the analog quantity unit U3 are connected with air temperature sensor signals, the part is used for collecting air temperature analog quantity signals, a 2+ pin and a 2-pin of the analog quantity unit U3 are connected with air pressure sensor signals, the part is used for collecting air pressure analog quantity signals, and a 3+ pin and a 3-pin of the analog quantity unit U3 are connected with back pressure sensor signals, and the part is used for collecting back pressure analog quantity signals.

8. A realization method of a control system of a DPF cleaning machine is characterized in that: the implementation method is applied to the cleaning machine device of any one of claims 1 to 7, and comprises the following steps:

before starting the DPF cleaning machine, firstly, checking whether the DPF is unobstructed by using a probe, checking whether the DPF is burnt or not, and checking whether the DPF has a cleaning value or not, and if so, performing a cleaning step;

the first step is as follows: clamping the DPF on a tool, enabling an air inlet to face upwards and an air outlet to face downwards, connecting a tap water pipe and a drain pipe, opening a tap water valve, preparing, clicking an automatic button on a touch screen, automatically opening a water inlet valve and a pulse valve by a machine, carrying out pulse cleaning on the DPF according to set times, automatically opening a drain valve and a drain pump by the machine when detecting that the liquid level in a water tank reaches a high liquid level, reducing the liquid level in the water tank to be lower than a set low liquid level, and then automatically closing the drain valve and the drain pump, so that most of carbon deposit and ash in the DPF is flushed out;

the second step is that: after the first-step pulse is finished, closing the pulse valve, opening the draining valve to drain all the water in the water tank, closing the draining valve to prompt the addition of cleaning liquid, then opening the water inlet valve, starting the heating pipe when the liquid level in the water tank reaches a high liquid level, starting ultrasonic wave, starting the pulse valve, cleaning the DPF by the DPF cleaning machine while heating, pulsing and ultrasonically, after the circulating cleaning is set for time, closing the heating pipe, closing the ultrasonic wave, closing the pulse valve, opening the draining valve to discharge and collect wastewater, and observing the cleaning condition; if the back button is not cleaned, the second step of operation can be repeated;

the third step: thirdly, firstly, repeating the first step, flushing out residual cleaning liquid by pulse while feeding water, and then blowing out most of accumulated water in the DPF by using an air gun;

the fourth step: baking: after the third part is finished, the heating core, the drying valve and the blower are started, and after the set time is reached, the heating core, the drying valve and the blower are stopped to rapidly dry the DPF;

the fifth step: after the fourth step of drying is finished, the inspection mechanism is installed, the blower and the drying valve are opened for 5 minutes, pressure difference detection is carried out on the DPF, and an instantaneous numerical value is read; and finally, detecting whether a local light source penetrates through the interior by a light source, wherein the existence of the light source penetration indicates whether the interior is damaged or not.

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