CN210707328U

CN210707328U - Automatic automobile cleaning system without sewage discharge

Info

Publication number: CN210707328U
Application number: CN201921704544.0U
Authority: CN
Inventors: 李德峰; 李开富
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-06-09
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a no sewage discharge's automatic automobile cleaning system, including control subsystem and the car washing subsystem and the sewage treatment subsystem of being connected with control subsystem, the car washing subsystem is connected with the sewage treatment subsystem. The utility model discloses make the sewage after the carwash return to the carwash subsystem and carry out the carwash operation once more after sewage treatment subsystem automatic processing to can reach the purpose that whole long-term circulation was used, control subsystem carries out integrated control to carwash subsystem and sewage treatment subsystem, reaches the automatic purpose that carries out car washing operation and sewage treatment subsystem automatic operation of carwash subsystem. This practicality adopts the modularized design, and carwash subsystem, sewage treatment subsystem, control subsystem pass through the pipe connection, arrange in a flexible way, and area is little.

Description

Automatic automobile cleaning system without sewage discharge

Technical Field

The utility model relates to an automobile cleaning technical field, concretely relates to automatic automobile cleaning system of no sewage discharge.

Background

The existing sewage treatment system in the car washing industry has the following defects:

firstly, the sewage treatment technology of common car washing shops mostly adopts the processes of precipitation, filtration and activated carbon adsorption, a sedimentation tank is large in occupied area and large in capacity (the general sedimentation time is more than 4 hours, the capacity of the sedimentation tank is more than 10 cubic meters, otherwise, the effect of precipitation cannot be achieved), the sedimentation tank is generally formed by pouring and constructing concrete after digging a pit, and the construction cost is high.

And secondly, the construction site must be connected with an inlet pipe network, a pipe network for discharging sewage and a related administrative approval procedure.

And thirdly, the precision of the filter is generally 5 to 50 micrometers, some filters are not arranged, microorganisms and organic matters cannot be filtered, organic matters and bacteria in the car washing liquid cannot be removed, and the washing water of the filter is directly discharged without being treated.

And fourthly, the sand filter material in the adsorption tank is generally directly discarded or not filled when being replaced. For cost reasons, activated carbon is generally not filled to capacity or at all.

And fifthly, removing the sediment manually, wherein the water in the sedimentation tank is drained before the sediment is removed. The water content of the removed sediment is high and is in a slurry state, a small part of the sediment enters an urban garbage system, and the vast majority of the sediment is discharged into a sewer pipe network system.

Sixth, activated carbon adsorption can adsorb some microorganism bacteria and organic matter, but because of cost reason, activated carbon filling capacity is generally less, or just need not install activated carbon at all, even if activated carbon is filled according to the design requirement, under the condition of high content carwash liquid of carwash sewage, high content car wax, high content solid particle, grease, organic phosphorus etc. organic matter, activated carbon generally uses several days and just saturates, just can't play the adsorbed purpose at all, cause the car wash peculiar smell foul, the circumstances of acidizing to take place, the car wash circulating water has to be discharged in the car wash, add or change new water and can normally wash the car, the pollutant in the car wash circulating water of emission directly gets into city sewer, there is very big pollution to the environment. If the activated carbon is replaced periodically or activated from a new one as required, the cost is high, the car wash is economically unacceptable, and the process of producing or activating the activated carbon is itself a waste of resources and environmental pollution. The current car washing industry suffers from the following drawbacks or deficiencies.

Seven, huge water resources are consumed, car washing discharge sewage of each car is about 30-50 liters generally, cars of 53 cities are reserved in the country in 1 month in 2018, the quantity of the cars is over 100 ten thousand, 24 cities are over 200 ten thousand, 7 cities are over 300 ten thousand, the cars are increased at the speed of over 10% every year, at present, according to the average 200 ten thousand household cars in over 50 middle and above cities in China, car washing is carried out once every month, 30 liters of cars/200 cars/city/12 months/50 cities are 3600 ten thousand cubic meters of water resources every year, meanwhile, car washing sewage of 3600 ten thousand cubic meters is discharged, a large amount of water resources are not consumed every year, and simultaneously, sewage discharge also has great influence on the environment.

And eighthly, liquid wastes (organic matters such as car washing liquid, car wax, grease, organic phosphorus, microorganisms and the like) cannot be independently collected and are discharged to the urban sewage pipe network system along with sewage, so that the environment is greatly influenced.

And ninthly, the solid waste cannot be automatically collected, the water content is high, the solid waste is in a slurry state, few solid waste enters the urban garbage system after manual collection, and most solid waste is still discharged to the urban sewage pipe network system along with sewage, so that the environment is polluted.

The process cost in the sewage treatment is high, and particularly, the production or regeneration process of the activated carbon consumes resources and has influence on the environment.

Eleventh, the recycling water cannot be recycled for a long time, and car washing shops must be built in places with water inlet and sewage discharge pipe network conditions. Connecting the water inlet pipe network and the sewage discharge pipe network, transacting the permission of water use and sewage discharge, and increasing the construction difficulty and cost.

In conclusion, the water resource recycling efficiency of the existing automatic car washing technology is not high.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough among the prior art, the utility model provides a pair of automatic automobile cleaning system of no sewage discharge has solved the not high problem of automobile cleaning system water resource cyclic utilization efficiency.

In order to achieve the practical purpose, the technical scheme adopted by the utility model is as follows: an automatic automobile cleaning system without sewage discharge comprises a control subsystem, and a car washing subsystem and a sewage treatment subsystem which are connected with the control subsystem, wherein the car washing subsystem is connected with the sewage treatment subsystem;

the car washing subsystem comprises a car washing water storage tank, a car washing liquid storage tank, a water wax storage tank and a blow-dry compressed air storage tank, the car washing water storage tank is respectively connected with a car washing high-pressure water pump, a car washing liquid water pump and a water wax spraying water pump, the high-pressure water pump for washing the car is connected with a high-pressure water energy storage tank, the high-pressure water energy storage tank is connected with a high-pressure low-flow air compressor, the high-pressure water energy storage tank is connected with the water outlet nozzle through an electric control high-pressure water switch, the carwash liquid pump is connected with the carwash liquid nozzle, the vehicle washing liquid storage tank is connected with a vehicle washing liquid nozzle through a vehicle washing liquid proportion metering pump, the water wax spraying water pump is connected with the water wax nozzle, the water wax storage tank is connected with the water wax nozzle through a water wax proportion metering pump, one end of the blow-dry compressed air storage tank is connected with a blow-dry air compressor, the other end of the blow-dry compressed air storage tank is connected with an air nozzle through an electric control compressed air switch;

the sewage treatment subsystem comprises an adjusting water tank, an air flotation bubble breaking disinfection and sterilization water tank and a sedimentation water tank, the adjusting water tank is used for collecting sewage generated by the car washing subsystem, the adjusting water tank is connected with a filter pressurizing motor, the filter pressurizing motor is connected with one end of a first filter through a third pressure sensor and a first electric control water switch, the other end of the first filter is connected with one end of a second filter through a second electric control water switch, the other end of the second filter is connected with one end of a third filter through a third electric control water switch, the other end of the third filter is connected with the sedimentation water tank through a fourth electric control water switch, the first filter is connected with one end of a fifth electric control water switch, the second filter is connected with one end of a sixth electric control water switch, and the third filter is connected with one end of a seventh electric control water switch, the other end of the fifth electric control water switch, the other end of the sixth electric control water switch and the other end of the seventh electric control water switch are connected with one end of an eighth electric control water switch and one end of a ninth electric control water switch, the other end of the eighth electric control water switch is connected with an air floatation foam breaking disinfection and sterilization water tank, the other end of the ninth electric control water switch is connected with a car washing water storage tank through a filter backwashing water pump, the air floatation foam breaking disinfection and sterilization water tank is connected with a liquid waste collecting tank, an air floatation foam breaking device is arranged at the top of the air floatation foam breaking disinfection and sterilization water tank, a precipitator adding device is arranged at the top of the precipitation water tank, and a pH value regulator adding device is arranged at the top of the car washing water storage.

Further: and a sterilization lamp tube is arranged in the air floatation bubble breaking sterilization water tank.

Further: the bottom of carwash liquid storage tank is equipped with first weight sensor, water wax storage tank bottom is equipped with second weight sensor, the bottom of high pressure water energy storage tank is equipped with third weight sensor, be equipped with first pressure sensor in the high pressure water energy storage tank, it all is equipped with second pressure sensor in the compressed air gas storage tank to weather, first weight sensor, second weight sensor, third weight sensor, first pressure sensor and second pressure sensor all are connected with control subsystem's signal input part, control subsystem's signal output part respectively with carwash liquid water pump, water wax spray water pump, automatically controlled high-pressure water switch, automatically controlled compressed air switch, the air compressor machine that weathers, carwash high-pressure water pump, high-pressure low flow air compressor are connected.

Further: the bottom of the liquid waste collecting box is provided with a fourth weight sensor, the regulating water tank, the air-flotation bubble-breaking sterilizing water tank, the sedimentation water tank and the carwash water storage tank are internally provided with water level sensors, a pH value sensor is arranged in the water storage tank of the carwash, the fourth weight sensor, the third pressure sensor, the water level sensor and the pH value sensor are all connected with the signal input end of the control subsystem, the signal output end of the control subsystem is respectively connected with a first electric control water switch, a second electric control water switch, a third electric control water switch, a fourth electric control water switch, a fifth electric control water switch, a sixth electric control water switch, a seventh electric control water switch, an eighth electric control water switch, a ninth electric control water switch, a pH value regulator adding device, a precipitator adding device, an air flotation bubble breaking device, a sterilization and disinfection lamp tube, a filter pressurizing motor and a filter backwashing water pump.

The beneficial effects of this utility do: the utility model provides a carwash subsystem produces washes with high pressure water, weather with compressed air, prepare carwash liquid and wax liquid, the sewage treatment subsystem carries out automatic processing to the sewage that the carwash subsystem produced, through filtering, the air supporting, disinfection and isolation, the pH valve detects and adjusts, national waste dehydration is collected, liquid waste air supporting separation, technical measure such as broken bubble is collected, make the sewage after the carwash can reach whole long-term used purpose of circulating, and return the sewage after handling to the carwash operation of carrying out once more in the carwash subsystem, the control subsystem carries out integrated control to carwash subsystem and sewage treatment subsystem. This practicality adopts the modularized design, and carwash subsystem, sewage treatment subsystem, control subsystem pass through the pipe connection, arrange in a flexible way, and area is little.

Further: the utility model discloses a belt dewatering machine, including sediment water tank, belt dewatering machine, solid waste collection box bottom, control subsystem, it is equipped with the filter bag to deposit water tank below, the bottom of crossing the filter bag is equipped with rotatory blowoff valve, the one end of the belt dewatering machine that rotatory blowoff valve below upwards set up for the slope, the other end below of belt dewatering machine is equipped with solid waste collection box, solid waste collection box bottom is equipped with fifth weight sensor, fifth weight sensor is connected with control subsystem's signal input part, control subsystem's signal output part is.

The beneficial effect of adopting the further scheme is as follows: the bag filter utilizes the water level pressure of the precipitation water tank to automatically and slowly remove a part of the water in the solid-liquid mixture precipitated at the bottom, the water content of the solid-liquid mixture is reduced, then the solid-liquid mixture is conveyed to the belt dehydrator for dehydration through the rotary blow-down valve at a set speed, and the water dehydrated by the bag filter and the belt dehydrator flows into the water collecting tank of the car washing area and enters the sewage treatment system again for treatment. The solid matter after the belt dewaterer dehydration will get into solid waste collection box, and fifth weight sensor can automatic send weight information to control subsystem, and the notice carries out waste cleaning.

Further: the foam air-flotation breaking device is characterized in that a plurality of foam rising guide cylinders and discharge electrodes arranged between the foam rising guide cylinders are arranged in the air-flotation breaking device, every two of the discharge electrodes are arranged side by side, the discharge electrodes are connected with a high-voltage electricity generation controller, a bubble height detection sensor is arranged in the air-flotation breaking device and is connected with a signal input end of a control subsystem, and a signal output end of the control subsystem is connected with the high-voltage electricity generation controller.

The beneficial effect of adopting the further scheme is as follows: when the height of the bubbles reaches a certain height, the bubble height detection sensor sends a signal to the high-voltage generator control box to generate high voltage, electric sparks are generated by intermittent discharge of the high-voltage electrodes in the bubble breaking box to enable the bubbles to be changed into liquid, and the liquid waste flows into the liquid waste collecting box along the bottom of the bubble breaking box.

Further: and hollow fiber fine filtration filter elements are arranged in the first filter, the second filter and the third filter, and the filtration precision of the hollow fiber fine filtration filter elements is 0.01 mu m.

The beneficial effect of adopting the further scheme is as follows: the filter element replacement time of the filter can be prolonged by the three filters; after the filter element is partially blocked after being used, the filter element can continue to work normally; the third filter filters the car washing sewage normally as the first and second filters under the sewage treatment working condition, and is the filter of the washing water of the first and second filters under the back washing working condition, the precipitation water tank only precipitates the back washing sewage of the third filter, the treatment capacity of filtering the washing water is reduced, and enough time is provided to ensure the precipitation effect and the dehydration effect of the precipitation water tank.

Further: the car washing liquid nozzle, the water outlet nozzle and the water wax nozzle are all provided with an ultrasonic probe and an ultrasonic signal processing switch module connected with the ultrasonic probe, the ultrasonic signal processing switch module is connected with a DC24V power supply, and the ultrasonic signal processing switch module is also connected with a switch valve body on the nozzle.

The beneficial effect of adopting the further scheme is as follows: the ultrasonic probe and the ultrasonic signal processing switch module are used for controlling the car washing liquid, the water wax, the high-pressure washing water and the compressed air to be sprayed and closed according to the set distance with the car body.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a block diagram of a car wash subsystem in the present application;

FIG. 3 is a structural diagram of a sewage treatment subsystem in the present application;

FIG. 4 is a diagram showing the structure of the settling tank in the present invention;

fig. 5 is a structural diagram of the air flotation bubble breaking device in the present embodiment.

Wherein: 1. a water storage tank for washing a vehicle; 2. a carwash storage tank; 3. a water wax storage tank; 4. blowing dry the compressed air storage tank; 5. a high-pressure water pump for washing a vehicle; 6. a vehicle washing liquid pump; 7. a water wax spraying water pump; 8. a high-pressure water energy storage tank; 9. a high pressure low flow air compressor; 10. an electric control high-pressure water switch; 11. a water outlet nozzle; 12. A vehicle washing liquid nozzle; 13. a vehicle washing liquid proportional metering pump; 14. a water wax nozzle; 15. a water-wax proportional metering pump; 16. blowing dry the air compressor; 17. an electric control compressed air switch; 18. an air nozzle; 19. adjusting the water tank; 20. an air floatation bubble breaking disinfection and sterilization water tank; 21. a settling water tank; 22. a filter pressurizing motor; 23. a third pressure sensor; 24. a first electrically controlled water switch; 25. a first filter; 26. a second electrically controlled water switch; 27. a second filter; 28. a third electric control water switch; 29. a third filter; 30. a fourth electric control water switch; 31. a fifth electric control water switch; 32. a sixth electric control water switch; 33. a seventh electric control water switch; 34. An eighth electrically controlled water switch; 35. a ninth electrically controlled water switch; 36. a filter backwashing water pump; 37. a liquid waste collection tank; 38. an air floatation bubble breaking device; 39. a precipitant addition device; 40. a pH value regulator adding device; 41. a filter bag; 42. rotating the blow-down valve; 43. a belt dehydrator; 44. a solid waste collection bin; 45. a foam rising guide cylinder; 46. and a discharge electrode.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art as long as the changes are within the spirit and scope of the present invention as defined and defined by the appended claims, and all practical and inventive changes using the present inventive concept are protected.

As shown in fig. 1, an automatic car washing system without sewage discharge comprises a control subsystem, and a car washing subsystem and a sewage treatment subsystem which are connected with the control subsystem, wherein the car washing subsystem is connected with the sewage treatment subsystem;

as shown in fig. 2, the car washing subsystem comprises a car washing water storage tank 1, a car washing liquid storage tank 2, a water wax storage tank 3 and a blow-dry compressed air storage tank 4, the car washing water storage tank 1 is respectively connected with a car washing high-pressure water pump 5, a car washing liquid water pump 6 and a water wax spraying water pump 7, the car washing high-pressure water pump 5 is connected with a high-pressure water storage tank 8, the high-pressure water storage tank 8 is connected with a high-pressure small-flow air compressor 9, the high-pressure water storage tank 8 is connected with a water outlet nozzle 11 through an electric control high-pressure water switch 10, the car washing liquid water pump 6 is connected with a car washing liquid nozzle 12, the car washing liquid storage tank 2 is connected with a car washing liquid nozzle 12 through a car washing liquid proportion metering pump 13, the water wax spraying water pump 7 is connected with a water wax nozzle 14, the water wax storage tank 3 is connected with the water wax nozzle 14 through, the other end of the blow-dry compressed air storage tank 4 is connected with an air nozzle 18 through an electric control compressed air switch 17, the bottom of the car wash storage tank 2 is provided with a first weight sensor (model is SBT series sensor), the bottom of the water wax storage tank 3 is provided with a second weight sensor, the bottom of the high-pressure water storage tank 8 is provided with a third weight sensor, the high-pressure water storage tank 8 is internally provided with a first pressure sensor (model is MIK-P300), the blow-dry compressed air storage tank 4 is internally provided with a second pressure sensor, the first weight sensor, the second weight sensor, the third weight sensor, the first pressure sensor and the second pressure sensor are connected with the signal input end of the control subsystem, and the signal output end of the control subsystem is respectively connected with the car wash water pump 6, the water wax spray water pump 7, the electric control high-pressure water switch 10, the electric control compressed air switch 17, The high-pressure water pump 5 for washing the car is connected with the high-pressure small-flow air compressor 9;

in order to overcome the defects that the automatic car washing and air drying system on the market at present adopts a centrifugal fan to be frequently started and stopped (the centrifugal fan is started once in about 3 minutes, the working time of each time does not exceed 1 minute), the air pressure is low, the noise of the fan is high, the failure rate is high, air ports can not be flexibly arranged, and the air drying effect is poor.

In order to reduce the requirements of motor power and power supply configuration, frequent start and stop of a motor are avoided, the noise of a fan in a car washing area is reduced, the air port position is more reasonably arranged, the air drying effect is improved, the system adopts an air compressor to generate high-pressure air and adds an air storage tank to be an air drying source, and the capacity of the air storage tank is greater than the consumption of compressed air for cleaning a car. The advantages of such a design are: firstly, the high flow rate of air is utilized to drive the air around the nozzle (the driving amount is about 40 times of the air injection amount), the utilization rate of the compressed air is enhanced, and the drying effect of the water of the vehicle body is improved. The second nozzle is flexible in arrangement and simple to control. The third air pressure is high, and the drying effect is good. The fourth car washing area has low noise. And fifth, frequent starting and stopping of the motor are avoided, and the service life of the equipment is prolonged. When the pressure in the air storage tank is lower than or higher than the set pressure, the air compressor is automatically started or stopped, and the pressure and the consumption of air for drying are ensured at any time.

Because the automatic car washing system sprays high-pressure water for many nozzles simultaneously and washes, it is big to high pressure discharge demand in the washing time, and other times do not need again, if adopt the water pump of present generally adoption directly to drive the nozzle and spray, the motor just must frequently start and stop, and water pump flow configuration must be very big, and motor power configuration also needs corresponding increase.

In order to reduce the power of the motor and the configuration requirement of a power supply and avoid frequent start and stop of the motor, the system adopts the design of a high-pressure water pump and an energy storage tank, the energy storage tank is pressurized to a set pressure by using a low-flow high-pressure air compressor in advance, then high-pressure water is pressed into the energy storage tank for storage and standby, the standby amount is larger than the maximum water demand for flushing a single trolley, more than 80% of pressurized air space is reserved in the energy storage water storage tank, the minimum pressurized pressure of air is 8mpa, the pressure at the lowest water level is not lower than 8mpa, and the pressure at the highest water level is not higher than 12 mpa. A weight sensor is arranged on the base of the water storage tank, and the operation or stop of the high-pressure water pump is controlled by the weight of water in the tank body and the pressure in the tank body.

When the pressure or weight in the high-pressure water energy storage tank is lower than a set value, the high-pressure water pump is automatically started, and the pressure and the using amount of high-pressure washing water are ensured at any time.

As shown in fig. 3, the sewage treatment subsystem comprises an adjusting water tank 19, an air-flotation bubble-breaking disinfection and sterilization water tank 20 and a settling water tank 21, the adjusting water tank 19 is used for collecting sewage generated by the car washing subsystem, the adjusting water tank 19 is connected with a filter pressurizing motor 22, the filter pressurizing motor 22 is connected with one end of a first filter 25 through a third pressure sensor 23 and a first electric control water switch 24, the other end of the first filter 25 is connected with one end of a second filter 27 through a second electric control water switch 26, the other end of the second filter 27 is connected with one end of a third filter 29 through a third electric control water switch 28, the other end of the third filter 29 is connected with the settling water tank 21 through a fourth electric control water switch 30, the first filter 25 is connected with one end of a fifth electric control water switch 31, the second filter 27 is connected with one end of a sixth electric control water switch 32, the third filter 29 is connected with one end of a seventh electric control water switch 33, the other end of the fifth electric control water switch 31, the other end of the sixth electric control water switch 32 and the other end of the seventh electric control water switch 33 are all connected with one end of an eighth electric control water switch 34 and one end of a ninth electric control water switch 35, the other end of the eighth electric control water switch 34 is connected with an air-flotation bubble-breaking disinfection and sterilization water tank 20, a disinfection and sterilization lamp tube is arranged in the air-flotation bubble-breaking disinfection and sterilization water tank 20, the other end of the ninth electric control water switch 35 is connected with a car washing water storage tank 1 through a filter back flushing water pump 36, the air-flotation bubble-breaking disinfection and sterilization water tank 20 is connected with a liquid waste collection tank 37, an air-flotation bubble-breaking device 38 is arranged at the top of the air-flotation bubble-breaking disinfection and sterilization water tank 20, a precipitator adding device 39 is arranged at the top of the precipitation water tank 21, a pH value regulator adding device 40, The air-flotation bubble-breaking disinfection and sterilization water tank 20, the sedimentation water tank 21 and the car washing water tank 1 are internally provided with water level sensors (model: UQK-03), the car washing water tank 1 is internally provided with a pH value sensor (model: MIK-PH160), the fourth weight sensor, the third pressure sensor 23, the water level sensors and the pH value sensors are all connected with the signal input end of the control subsystem, the signal output ends of the control subsystem are respectively connected with a first electric control water switch 24, a second electric control water switch 26, a third electric control water switch 28, a fourth electric control water switch 30, a fifth electric control water switch 31, a sixth electric control water switch 32, a seventh electric control water switch 33, an eighth electric control water switch 34, a ninth electric control water switch 35, a pH value regulator adding device 40, a precipitator adding device 39, an air flotation bubble breaking device 38, a sterilization lamp tube, a filter pressurizing motor 22 and a filter backwashing water pump 36.

According to the water level height in the sump of carwash district with car wash sewage take out to adjust the water tank, adjust the sewage in the water tank and get into first filter, second filter and third filter after the water pump pressurization and filter side by side, divide into filtration water and filter sparge water two parts behind the filter and handle:

the first part is the treatment of the water filtered by a filter, the car washing sewage is filtered by a hollow fiber fine filtering filter element of the filter, the filtering precision is 0.01 micron, the cleanliness of the filtered water can meet the requirement of the car washing water, but the car washing sewage also contains a small part of car washing liquid, water wax, microorganisms and organic matters, the part of the filtered water enters an air floatation bubble breaking disinfection and sterilization water tank for killing the microorganisms of the organic matters and collecting and removing the air floatation, the killing of the microorganisms is carried out by using ultraviolet light in the water, the removal of the organic matters such as the car washing liquid, the water wax, the microorganisms and the like is carried to the water surface by using air bubbles generated by air floatation of compressed air, then the water is collected and broken into liquid waste by using the air bubbles and collected into a liquid waste collection tank, the liquid waste collection tank is provided with a weight sensor and can automatically send waste, After the microorganisms are killed and the organic matters are separated and collected, the wastewater enters a water storage tank of the car washer to be subjected to pH value detection and adjustment, so that the treated wastewater can meet the requirement of water for car washing. The part of sewage is subjected to filtration, microbe killing, organic matter removal and pH value adjustment treatment, and the bad phenomena of peculiar smell, acidification and the like can not occur even if the sewage is recycled for a long time.

And a second part, treating flushing water of the filter, wherein the flushing water of the filter enters a precipitation water tank for coagulating precipitation in a first step, a precipitator is added into the precipitation water tank, and upper sewage precipitated after a certain time and sewage seeped from a lower filter bag enter an adjusting water tank and enter a sewage treatment system again. Sediment of the lower part of the settling water tank is intermittently sent into the belt dehydrator through the rotary blowdown valve to be dehydrated, the dehydrated solid waste falls into the solid waste collecting box, and the solid waste collecting box is provided with a weight sensor to automatically and remotely inform the belt dehydrator to clear up the solid waste. The separated water in the dehydration process of the belt dehydrator enters the regulating water tank and enters the sewage treatment system for treatment.

As shown in fig. 4, a filter bag 41 is arranged below the settling water tank 21, a rotary blow-down valve 42 is arranged at the bottom of the filter bag 41, one end of a belt dehydrator 43 which is obliquely arranged upwards is arranged below the rotary blow-down valve 42, a solid waste collection box 44 is arranged below the other end of the belt dehydrator 43, a fifth weight sensor is arranged at the bottom of the solid waste collection box 44, the fifth weight sensor is connected with a signal input end of a control subsystem, and a signal output end of the control subsystem is respectively connected with the belt dehydrator 43 and the rotary blow-down valve 42.

As shown in fig. 5, a plurality of foam rising guide cylinders 45 and discharge electrodes 46 arranged between the foam rising guide cylinders 45 are arranged in the air flotation bubble breaking device 38, the discharge electrodes 46 are arranged side by side in pairs, the discharge electrodes 46 are connected with a high-voltage electricity generation controller, a bubble height detection sensor is arranged in the air flotation bubble breaking device 38, the bubble height detection sensor is connected with a signal input end of a control subsystem, and a signal output end of the control subsystem is connected with the high-voltage electricity generation controller.

The air-float bubble-breaking device is characterized in that compressed air enters water through an air hole in an air pipe at the bottom of a box, organic matters such as car washing agents, water wax, microorganisms and the like in the water are brought to the water surface along with bubbles and enter a bubble-breaking box at a certain height above the water surface, the bubbles are naturally broken after entering the bubble-breaking box, when the height of the bubbles reaches a certain height, a signal is sent to a high-voltage generator control box through a bubble height detection sensor to generate high voltage, electric sparks are generated through intermittent discharge of a high-voltage electrode in the bubble-breaking box to enable the bubbles to be changed into liquid, and the liquid flows into a liquid collecting box along the bottom. Meanwhile, an ultraviolet light tube is arranged in the air-flotation bubble breaking device, microbes in water are killed and then are brought to the water surface through bubbles, and enter the liquid waste collecting box along with the bubbles, so that the purposes of disinfecting and sterilizing the car washing water, removing car washing liquid, water wax, grease and organic matters and eliminating peculiar smell are achieved, and the long-term recycling of the water for washing the car can be ensured.

The height of foam above the water surface is determined by the characteristics of the foam, and is also determined by the ratio of the rising speed of air flow to the natural breaking speed of the foam in a rising channel, the larger the ratio is, the higher the foam is above the water surface, a special foam breaking box is arranged at the upper part of the water surface, the bottom of the foam breaking box is closed, the upper opening is higher than the water surface by a certain height, a short pipe with a certain diameter is arranged in the foam breaking box and is used as a foam rising guide cylinder which is flush with the upper opening of the foam breaking box, the rising speed of the foam in the short pipe is high, the foam is brought into the upper foam breaking box, the area of the upper part of the foam breaking box is large, the rising speed of the foam is not low any more, the foam is naturally broken into liquid in the foam breaking box, when the natural breaking speed of the foam is slow to the height of the foam is higher than the set height, a sensor sends a, then flows into the liquid waste collecting box through a pipeline at the bottom of the outer edge of the foam breaking box to fulfill the aim of breaking foam.

The control subsystem takes 3 triangular FX5U-80MR single-chip industrial computers as core processors.

The car washing liquid nozzle 12, the water outlet nozzle 11 and the water wax nozzle 14 are all provided with an ultrasonic probe and an ultrasonic signal processing switch module connected with the ultrasonic probe, the ultrasonic signal processing switch module is connected with a DC24V power supply, and the ultrasonic signal processing switch module is also connected with a switch valve body on the nozzle.

The car washing liquid nozzle 12, the water outlet nozzle 11 and the water wax nozzle 14 respectively control car washing liquid, water wax, high-pressure washing water and compressed air to spray and close according to a set distance with a car body. When the distance between the nozzle and the vehicle body exceeds 60 cm, the nozzle is automatically closed to stop spraying, and the distance is automatically opened to spray when the distance is less than 60 cm. The usage amount of high-pressure water, compressed air, car washing liquid and water wax can be saved to the maximum extent.

Claims

1. An automatic automobile cleaning system without sewage discharge is characterized by comprising a control subsystem, and a car washing subsystem and a sewage treatment subsystem which are connected with the control subsystem, wherein the car washing subsystem is connected with the sewage treatment subsystem;

the car washing subsystem comprises a car washing water storage tank (1), a car washing liquid storage tank (2), a water wax storage tank (3) and a blow-dry compressed air storage tank (4), the car washing water storage tank (1) is respectively connected with a car washing high-pressure water pump (5), a car washing liquid water pump (6) and a water wax spray water pump (7), the car washing high-pressure water pump (5) is connected with a high-pressure water storage tank (8), the high-pressure water storage tank (8) is connected with a high-pressure small-flow air compressor (9), the high-pressure water storage tank (8) is connected with a water outlet nozzle (11) through an electric control high-pressure water switch (10), the car washing liquid water pump (6) is connected with a car washing liquid nozzle (12), the car washing liquid storage tank (2) is connected with the car washing liquid nozzle (12) through a car washing liquid proportion metering pump (13), and the water wax spray water pump (7) is connected with a water wax nozzle (14), the water wax storage tank (3) is connected with a water wax nozzle (14) through a water wax proportion metering pump (15), one end of the blow-dry compressed air storage tank (4) is connected with a blow-dry air compressor (16), and the other end of the blow-dry compressed air storage tank (4) is connected with an air nozzle (18) through an electric control compressed air switch (17);

the sewage treatment subsystem comprises an adjusting water tank (19), an air-flotation bubble-breaking disinfection and sterilization water tank (20) and a precipitation water tank (21), the adjusting water tank (19) is used for collecting sewage generated by the car washing subsystem, the adjusting water tank (19) is connected with a filter pressurizing motor (22), the filter pressurizing motor (22) is connected with one end of a first filter (25) through a third pressure sensor (23) and a first electric control water switch (24), the other end of the first filter (25) is connected with one end of a second filter (27) through a second electric control water switch (26), the other end of the second filter (27) is connected with one end of a third filter (29) through a third electric control water switch (28), and the other end of the third filter (29) is connected with the precipitation water tank (21) through a fourth electric control water switch (30), the first filter (25) is connected with one end of a fifth electric control water switch (31), the second filter (27) is connected with one end of a sixth electric control water switch (32), the third filter (29) is connected with one end of a seventh electric control water switch (33), the other end of the fifth electric control water switch (31), the other end of the sixth electric control water switch (32) and the other end of the seventh electric control water switch (33) are connected with one end of an eighth electric control water switch (34) and one end of a ninth electric control water switch (35), the other end of the eighth electric control water switch (34) is connected with a bubble breaking disinfection and sterilization water tank (20), the other end of the ninth electric control water switch (35) is connected with a vehicle washing water storage tank (1) through a filter backwashing water pump (36), and the air floatation bubble breaking disinfection and sterilization water tank (20) is connected with a liquid waste collection tank (37), the top of the air-flotation bubble-breaking disinfection and sterilization water tank (20) is provided with an air-flotation bubble-breaking device (38), the top of the sedimentation water tank (21) is provided with a precipitator adding device (39), and the top of the carwash water storage tank (1) is provided with a pH value regulator adding device (40).

2. The automatic car washing system without sewage discharge according to claim 1, wherein a sterilizing lamp is arranged in the air-floating bubble-breaking sterilizing water tank (20).

3. The automatic automobile washing system without sewage discharge according to claim 1, wherein a first weight sensor is arranged at the bottom of the car washing liquid storage tank (2), a second weight sensor is arranged at the bottom of the water wax storage tank (3), a third weight sensor is arranged at the bottom of the high-pressure water energy storage tank (8), a first pressure sensor is arranged in the high-pressure water energy storage tank (8), a second pressure sensor is arranged in the blow-drying compressed air storage tank (4), the first weight sensor, the second weight sensor, the third weight sensor, the first pressure sensor and the second pressure sensor are all connected with a signal input end of a control subsystem, and a signal output end of the control subsystem is respectively connected with a car washing liquid water pump (6), a water wax spraying water pump (7), an electric control high-pressure water switch (10), an electric control compressed air switch (17), The blow-dry air compressor (16), the car washing high-pressure water pump (5) and the high-pressure small-flow air compressor (9) are connected.

4. The automatic automobile washing system without sewage discharge according to claim 1, wherein a fourth weight sensor is arranged at the bottom of the liquid waste collection tank (37), water level sensors are arranged in the regulating water tank (19), the air-flotation bubble breaking disinfection and sterilization water tank (20), the sedimentation water tank (21) and the automobile washing water storage tank (1), a pH value sensor is arranged in the automobile washing water storage tank (1), the fourth weight sensor, the third pressure sensor (23), the water level sensors and the pH value sensor are all connected with the signal input end of a control subsystem, and the signal output end of the control subsystem is respectively connected with the first electric control water switch (24), the second electric control water switch (26), the third electric control water switch (28), the fourth electric control water switch (30), the fifth electric control water switch (31), the sixth electric control water switch (32), A seventh electric control water switch (33), an eighth electric control water switch (34), a ninth electric control water switch (35), a pH value regulator adding device (40), a precipitator adding device (39), an air flotation bubble breaking device (38), a sterilization and disinfection lamp tube, a filter pressurizing motor (22) and a filter backwashing water pump (36).

5. The automatic automobile washing system without sewage discharge according to claim 1, wherein a filter bag (41) is arranged below the precipitation water tank (21), a rotary blow-down valve (42) is arranged at the bottom of the filter bag (41), one end of a belt dehydrator (43) is obliquely arranged upwards below the rotary blow-down valve (42), a solid waste collection box (44) is arranged below the other end of the belt dehydrator (43), a fifth weight sensor is arranged at the bottom of the solid waste collection box (44), the fifth weight sensor is connected with a signal input end of a control subsystem, and a signal output end of the control subsystem is respectively connected with the belt dehydrator (43) and the rotary blow-down valve (42).

6. The automatic automobile cleaning system without sewage discharge according to claim 1, wherein a plurality of foam rising guide cylinders (45) and discharge electrodes (46) arranged between the foam rising guide cylinders (45) are arranged in the air flotation bubble breaking device (38), the discharge electrodes (46) are arranged side by side in pairs, the discharge electrodes (46) are connected with a high-voltage electricity generation controller, a bubble height detection sensor is arranged in the air flotation bubble breaking device (38), the bubble height detection sensor is connected with a signal input end of a control subsystem, and a signal output end of the control subsystem is connected with the high-voltage electricity generation controller.

7. The automatic car washing system without sewage discharge according to claim 1, wherein the first filter (25), the second filter (27) and the third filter (29) are all internally provided with a hollow fiber fine filter element, and the filtering precision of the hollow fiber fine filter element is 0.01 μm.

8. The automatic automobile washing system without sewage discharge according to claim 1, characterized in that the car washing liquid nozzle (12), the water outlet nozzle (11) and the water wax nozzle (14) are all provided with an ultrasonic probe and an ultrasonic signal processing switch module connected with the ultrasonic probe, the ultrasonic signal processing switch module is connected with a DC24V power supply, and the ultrasonic signal processing switch module is further connected with a switch valve body on the nozzle.