Automatic water purifying equipment and working method thereof
Technical Field
The invention belongs to the field of water treatment, and particularly relates to automatic water purifying equipment and a working method thereof.
Background
The integrated water purifier integrates reaction, precipitation and filtration, combines a plurality of procedures in the water purification process flow in the same device, and has the characteristics of small volume, convenient transportation and short construction period. The water purification process flow is designed according to the application scene as required, so that the flexibility of the integrated water purification equipment is reflected. The integrated water purifier has the advantages of being high in mobility, and capable of extending the application scene of the integrated water purifier to emergency water treatment. By additionally arranging an automatic control system on the process flow of the integrated water purifying equipment, the process flow treatment equipment is optimized, and the requirements of real-time application of emergency water treatment can be met by adding some equipment.
Chinese patent CN 117105469a discloses a full-automatic integrated water purifier, including integrated water purifier body, integrated water purifier body left side intercommunication has the inlet tube, integrated water purifier body upside's left end intercommunication has the siphon, one side intercommunication that the integrated water purifier body was kept away from to the siphon has the water seal well, the middle part fixed mounting of integrated water purifier body upside has the second water pump, the air supporting chamber has been seted up to the inside on integrated water purifier body right side. This full-automatic integrated form integrated water purifier, it realizes filtering purification to pass through two filter plates in the rose box to get into integrated water purifier body with sewage through the inlet tube inside, and the flocculant pipeline pours into the flocculant into the air supporting intracavity simultaneously secondary filter, and it realizes the cubic filtration from inside cooperation sterilamp of solenoid valve downside and the second puddler to get into integrated water purifier body downside at last and discharges from first water pump upside first drain pipe.
However, the existing integrated water purifying equipment has certain limitations when directly applied to emergency scenes, equipment parts have certain defects, the emergency real-time characteristic is lacking, and the requirement of real-time water treatment of emergency water is difficult to meet.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides automatic water purifying equipment and a working method thereof.
An automatic water purifying device comprises a water purifying device body, wherein a device shell for wrapping the water purifying device body is arranged outside the water purifying device body, and a water inlet pump, a flocculation stirring bin, a sedimentation bin, a clean water bin, a filtration and disinfection bin and a water outlet component bin are sequentially arranged in the water purifying device body;
the water inlet end of the water inlet pump is connected with the raw water inlet, the water outlet side end of the water inlet pump is connected with the water inlet end of the water inlet pipe, and the water outlet end of the water inlet pipe is connected with the water inlet arranged at the upper part of the flocculation stirring bin;
A supporting frame is arranged above the flocculation stirring bin, an air compressor and a motor are arranged in the middle of the supporting frame, a rotating shaft of the motor stretches into the flocculation stirring bin and is coaxially connected with one end part of a slag scraping plate and an air floatation stirring fan blade, a slag scraping plate positioning needle is arranged at the lower edge of the other end part of the slag scraping plate, the slag scraping plate positioning needle is nested in a slag scraping plate track, and the slag scraping plate positioning needle can slide along the track in the slag scraping plate track; the air-float stirring fan blade is provided with an internal cavity, the internal cavities of the air-float stirring fan blade are all connected with the air outlet end of the air inlet pipe, and the air inlet end of the air inlet pipe is connected with the air compressor; the flocculation stirring bin is characterized in that a plurality of air floatation holes are uniformly formed in the surfaces of the large air floatation stirring fan blades and the small air floatation stirring fan blades, a slag collecting groove is formed in the top of the flocculation stirring bin, one end of a groove body of the slag collecting groove is connected with a rotating shaft in a nested manner, the other end of the groove body of the slag collecting groove is fixedly connected to the side wall of the top of the bin, a slag collecting box is arranged at the connection part of the slag collecting groove and the side wall of the top of the bin, a flocculation water outlet pipe is further arranged at the top of the inside of the flocculation stirring bin, a sludge pipe is arranged at the lower part of the inside of the flocculation stirring bin, a sedimentation bin water inlet pipe is arranged at the lower part of the inside of the sedimentation bin, and the rotating shaft is a hollow shaft with the upper end and the lower end being communicated;
A sedimentation bin water inlet hole is formed in the sedimentation bin above a sedimentation bin water inlet pipe, a plurality of trapezoid water distribution areas are formed above the sedimentation bin water inlet hole, water distribution holes are uniformly distributed on a top plate of each trapezoid water distribution area, an inverted V-shaped water distribution cover is arranged above the water distribution holes of each trapezoid water distribution area, a lower inclined pipe is arranged above the inverted V-shaped water distribution cover, an upper inclined pipe is arranged above the lower inclined pipe, a top plate with the water distribution holes is arranged at the top of each trapezoid water distribution area, V-shaped mud guards connected with the top plate are arranged on two sides of the top plate, the trapezoid water distribution areas are connected with each other, wherein each two adjacent trapezoid water distribution areas share one V-shaped mud guard, and a sedimentation bin mud collecting groove is formed between every two adjacent V-shaped mud guards at the lower part of the trapezoid water distribution areas;
the top of one side of the sedimentation bin, which is close to the clean water bin, is provided with an overflow weir plate, and the sedimentation bin and the clean water bin share the overflow weir plate;
The lower part of the disinfection bin is provided with a filtering area, the lower part of the disinfection bin is communicated with the filtering area through a water outlet hole of the clean water bin, the bottom of the filtering area is provided with a plurality of filtering area mud collecting grooves, a mud collecting plate is arranged below the plurality of filtering area mud collecting grooves, the middle upper part of the filtering area is provided with three layers of filter plates, a hole type water distribution plate is arranged above the three layers of filter plates, the upper part of the disinfection bin is provided with a disinfection area which is arranged at the upper part of the hole type water distribution plate, a plurality of ultraviolet lamp tubes which are placed at equal intervals are fixedly arranged in the disinfection area, the upper part of the side wall of the disinfection area, which is far away from the clean water bin, is provided with a clean water outlet, a third electronic valve is arranged at the clean water outlet, a liquid level sensor is arranged on the side wall of the disinfection area below the clean water outlet, the bottom of the filtering area is also provided with a back flushing water outlet, the back flushing water outlet is connected with a water inlet main pipe, and a fourth electronic valve is arranged at the joint of the back flushing water outlet and the water main pipe;
The device comprises a water purifying component bin, a water purifying water outlet, a water quality real-time monitoring device, an infrared faucet, a non-standard water outlet, a fifth electronic valve, a standard water outlet and a sixth electronic valve, wherein the water purifying water outlet is connected with the water outlet component bin through a water purifying water outlet pipe;
An infrared sensor is arranged on the equipment shell below the infrared faucet; the water tank wall of the funnel-shaped water tank below the water outlet component bin is provided with a water tank water collecting pipe outlet, the water tank water collecting pipe outlet is connected with a water tank water collecting pipe, the water tank water collecting pipe passes through the lower part of the water outlet component bin and extends out from the rear of the lower part of the water outlet component bin;
The first electronic valve, the second electronic valve, the third electronic valve, the fourth electronic valve, the fifth electronic valve and the sixth electronic valve are all electrically connected with a device side switch, and the device side switch is arranged on the device shell.
The flocculation stirring device is characterized in that a rotating shaft of a motor extends into a flocculation stirring bin and is sequentially and coaxially connected with one end part of a slag scraping plate, a large air flotation stirring fan blade and a small air flotation stirring fan blade from top to bottom, the large air flotation stirring fan blade and the small air flotation stirring fan blade are respectively provided with an inner cavity, the inner cavities of the large air flotation stirring fan blade and the small air flotation stirring fan blade are respectively connected with an air outlet end of an air inlet pipe, the air inlet end of the air inlet pipe is connected with an air compressor, and a plurality of air flotation holes are uniformly formed in the surfaces of the large air flotation stirring fan blade and the small air flotation stirring fan blade.
The slag collecting tank is preferably provided with a slope with a certain gradient.
The water outlet assembly bin is arranged in the middle of the water outlet assembly bin, and the water outlet pump and the water quality real-time monitor are placed on the water outlet assembly bin support.
Preferably, a mirror is arranged above the infrared faucet on the equipment shell, and an LED display screen is arranged on the equipment shell above the mirror, so that water quality data and other notices can be displayed in real time.
The working method of the automatic water purifying equipment comprises the following steps:
A second electronic valve at the raw water inlet is opened through a side switch, and a fourth electronic valve at a backwash water outlet at the bottom of the filtration and disinfection bin is closed;
The motor drives the rotating shaft to slowly rotate, the air compressor blows air along the air inlet pipe, the air sequentially enters the large-scale air flotation stirring fan blades and the small-scale air flotation stirring fan blades along the inner space of the rotating shaft, the air is blown into the water body through a plurality of air flotation holes uniformly arranged on the surfaces of the large-scale air flotation stirring fan blades and the small-scale air flotation stirring fan blades, flocculation stirring is combined with air flotation, the stirring of the large-scale air flotation stirring fan blades and the small-scale air flotation stirring fan blades accelerates the mixing between the raw water and flocculant, enhances flocculation, improves the removal efficiency of pollutants such as particulate matters and oils in the raw water, reduces the load for subsequent sedimentation filtration, and small-bubble air blown into the air flotation holes wraps tiny particles in the raw water, forms scum at the top of the liquid surface of the flocculation stirring bin, and then the scum is scraped into a slag collecting box by a scum scraping plate;
The raw water subjected to flocculation air floatation enters a sedimentation bin water inlet pipe in a sedimentation bin through a flocculation water outlet pipe at the top in the flocculation stirring bin, sludge is recycled by a sludge pipe at the lower part in the flocculation stirring bin, the raw water subjected to flocculation air floatation enters a trapezoid water distribution area through a sedimentation bin water inlet hole above the sedimentation bin water inlet pipe and then uniformly enters the sedimentation bin through a water distribution hole on a top plate of the trapezoid water distribution area, the inverted V-shaped water distribution cover above the water distribution hole of each trapezoid water distribution area enables the water to uniformly flow into the sedimentation bin, the impact of the water inflow on the sedimentation area is reduced, the sedimentation efficiency is improved, and the V-shaped mud baffle and the sedimentation bin sludge collecting groove arranged at the bottom of the sedimentation bin collect the sludge falling from the upper inclined pipe and the lower inclined pipe;
the clean water in the clean water bin enters a filtering area at the lower part of the filtering and disinfecting bin through a water outlet hole of the clean water bin, the clean water is purified again through three layers of filtering plates, the purified water is uniformly distributed to a disinfecting area through a hole-type water distribution plate, and a plurality of ultraviolet lamp tubes which are fixedly arranged in the disinfecting area and are placed at equal intervals are used for carrying out ultraviolet disinfection on the water distribution;
the disinfected part of purified water enters the water quality real-time monitor in the water outlet assembly bin after passing through the purified water outlet pipe and the water outlet pump through the third electronic valve, and then the third electronic valve, the fifth electronic valve and the sixth electronic valve are closed through the side switch of the equipment;
When the water quality is up to the standard, the sixth electronic valve is opened through the side switch, and the purified water flows out through the up-to-standard water outlet and is used by a user through the infrared faucet;
The first electronic valve is automatically opened when the liquid level in the filtering and sterilizing bin is higher than the liquid level sensor;
When the water level is lower than a liquid level sensor below a purified water outlet of the filtration and disinfection bin, a first electronic valve on a backwashing pipe connected with a water collecting pipe of a pond is closed, a fourth electronic valve at the backwashing water outlet at the bottom of the filtration and disinfection bin is opened through a side switch, a fifth electronic valve at the unqualified water outlet and a sixth electronic valve at the qualified water outlet are closed, water in the filtration and disinfection bin is pumped by a water inlet pump to backwash the three-layer filter plate, and the automatic closing time of the fourth electronic valve at the backwashing water outlet can be set.
The beneficial effects of the invention are as follows:
On the basis of the existing water purifying equipment comprising flocculation, precipitation, filtration and disinfection, the invention optimizes equipment parts, increases equipment components, improves the emergency real-time characteristic of the integrated water purifying equipment, and can realize the requirement of real-time water treatment of emergency water.
The invention introduces raw water into a flocculation stirring bin through a water inlet pump, realizes primary purification of the raw water through flocculation stirring, combines flocculation stirring with air flotation, improves the removal efficiency of pollutants such as particulate matters, oils and the like in the raw water, reduces the load for subsequent precipitation and filtration, ensures that the flocculated water enters a precipitation zone, is provided with a down-inclined pipe and an up-inclined pipe to precipitate the flocculated water, the precipitated water enters a clean water bin and then enters a filtration and disinfection bin, a three-layer filter plate for purifying clean water again is arranged in the filtration and disinfection bin, a hole-type water distribution plate is also arranged in the disinfection bin for carrying out ultraviolet disinfection on the purified water after the re-purification, the purified water after the ultraviolet disinfection enters a water quality real-time monitor, and after the water quality real-time monitoring reaches a preset tap water standard, the water sample enters a main pipe again for water sample treatment through a front-end flow process when the water quality real-time monitoring does not reach the preset tap water standard, and the water quality can be repeatedly circulated in the real-time process, and the water quality can be provided under the premise of guaranteeing the water quality.
The invention can also close raw water inflow when the water consumption of daily crowds is minimum, and close the outlet of the water collecting pipe of the water tank when the liquid level is lower than the liquid level sensor below the purified water outlet pipe of the filtration and disinfection bin, and simultaneously open the back flush water outlet, the water of the filtration and disinfection bin is pumped by the water inflow pump to realize back flush of the three-layer filter plate, the automatic back flush of the filter plate can be realized in the low peak period of water, and the automatic closing time can be set for the electronic valve at the back flush water pipe.
In addition, the water collecting tank is arranged at the water purifying end, so that water resources can be recycled, the mirror is arranged on the equipment shell and can be used by people, and the LED display screen is arranged at the upper part of the mirror and can display water quality data and other notices in real time.
Drawings
FIG. 1 is a perspective view of an automated water purification apparatus of the present invention;
FIG. 2 is an internal structural view of the automatic water purifying apparatus of the present invention;
FIG. 3 is a rear view of the automated water purification apparatus of the present invention;
FIG. 4 is a schematic view of the structure of a flocculation agitation bin of the automated water purification apparatus of the present invention;
FIG. 5 is a schematic view of a sedimentation tank structure of the automated water purification apparatus of the present invention;
FIG. 6 is a schematic view of the clean water silo structure of the automated water purification apparatus of the present invention;
FIG. 7 is a schematic view of the structure of a filtration sterilization chamber of the automated water purification apparatus of the present invention;
FIG. 8 is a schematic view of the outlet assembly bin structure of the automated water purification apparatus of the present invention;
FIG. 9 is a right side schematic view of an automated water purification apparatus of the present invention;
FIG. 10 is an enlarged view of an air-float stirring blade of the automatic water purifying device of the present invention;
Fig. 11 is an enlarged view at a in fig. 4.
Reference numerals illustrate: the device comprises a device shell 1, a water inlet pump 2, a flocculation stirring bin 3, a sedimentation bin 4, a clear water bin 5, a filtration and disinfection bin 6, a water outlet component bin 7, an LED display screen 11, a mirror 12, an infrared faucet 13, a funnel-shaped water tank 14, a water filtering plate 15, a water tank water collecting pipe 16, a device side switch 17, an infrared sensor 131, a water tank water collecting pipe outlet 161, a first electronic valve 162, a water inlet pipe 21, a water inlet main pipe 22, a raw water inlet 23, a second electronic valve 231, an air compressor 301, a motor 302, a supporting frame 303, a rotating shaft 304, a slag scraping plate 305, a slag scraping plate positioning needle 3051, a slag scraping plate track 2, a slag collecting tank 306, a slag collecting box 307, a flocculation water outlet pipe 308, a large-sized air flotation stirring fan 309, a small-sized air flotation stirring fan blade 310, a sludge pipe 311, an air inlet pipe 312 the sedimentation tank water inlet pipe 41, the sedimentation tank water inlet hole 42, the trapezoid water distribution area 43, the V-shaped mud baffle 44, the sedimentation tank mud collecting groove 45, the lower inclined pipe 46, the upper inclined pipe 47, the water distribution hole 431, the inverted V-shaped water distribution cover 432, the overflow weir plate 51, the clean water tank water outlet hole 52, the filtering area 61, the disinfection area 62, the clean water outlet 63, the back flushing water outlet 64, the three-layer filter plate 611, the filtering area mud collecting groove 612, the mud collecting plate 613, the hole type water distribution plate 614, the ultraviolet lamp 621, the liquid level sensor 631, the third electronic valve 632, the fourth electronic valve 641, the clean water outlet pipe 71, the water outlet pump 72, the water quality real-time monitor 73, the non-standard water outlet 74, the standard water outlet 75, the water outlet component tank support 76, the fifth electronic valve 741, the sixth electronic valve 751 and the air floatation hole 8.
Detailed Description
The invention is further described below with reference to examples. The following examples are presented only to aid in the understanding of the invention. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present invention without departing from the principles of the invention, and such modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Example 1
As shown in fig. 1 to 11, an automatic water purifying device comprises a water purifying device body, wherein a device shell 1 for wrapping the water purifying device body is arranged outside the water purifying device body, and a water inlet pump 2, a flocculation stirring bin 3, a sedimentation bin 4, a clear water bin 5, a filtration and disinfection bin 6 and a water outlet component bin 7 are sequentially arranged in the water purifying device body;
The water inlet end of the water inlet pump 2 is connected with the raw water inlet 23, the water outlet side end of the water inlet pump 2 is connected with the water inlet end of the water inlet pipe 21, and the water outlet end of the water inlet pipe 21 is connected with a water inlet arranged at the upper part of the flocculation stirring bin 3;
A supporting frame 303 is arranged above the flocculation stirring bin 3, an air compressor 301 and a motor 302 are arranged in the middle of the supporting frame 303, a rotating shaft 304 of the motor 302 extends into the flocculation stirring bin 3 and is sequentially and coaxially connected with one end of a slag scraping plate 305, a large air floatation stirring fan blade 309 and a small air floatation stirring fan blade 310 from top to bottom, a slag scraping plate positioning needle 3051 is arranged at the lower edge of the other end of the slag scraping plate 305, the slag scraping plate positioning needle 3051 is nested in a slag scraping plate track 3052, the slag scraping plate positioning needle 3051 can slide along the track in the slag scraping plate track 3052, the large air floatation stirring fan blade 309 and the small air floatation stirring fan blade 310 are respectively provided with an inner cavity, the inner cavities of the large air floatation stirring fan blade 309 and the small air floatation stirring fan blade 310 are respectively connected with an air outlet end of an air inlet pipe 312, and the air inlet end of the air compressor 301 are respectively arranged on the surfaces of the large air floatation stirring fan blade 309 and the small air floatation stirring fan blade 310, a slag collecting groove 306 with a certain gradient is arranged at the inner top of the flocculation stirring bin 3, one end of the slag collecting groove 306 is connected with the upper side wall of the upper part of the flocculation stirring bin, and the lower end of the upper part of the flocculation stirring bin 3 is connected with the upper side wall of the upper part of the air inlet pipe 308 of the flocculation stirring bin 3, and the upper side wall of the upper part of the flocculation stirring bin is provided with a settling box 308 is provided with a settling box (41;
A sedimentation bin water inlet hole 42 is formed in the sedimentation bin 4 above a sedimentation bin water inlet pipe 41, a plurality of trapezoid water distribution areas 43 are formed above the sedimentation bin water inlet hole 42, water distribution holes 431 are uniformly distributed on a top plate of the top of each trapezoid water distribution area 43, inverted V-shaped water distribution covers 432 are arranged above the water distribution holes 431 of each trapezoid water distribution area 43, a lower inclined pipe 46 is arranged above the inverted V-shaped water distribution covers 432, an upper inclined pipe 47 is arranged above the lower inclined pipe 46, the top of each trapezoid water distribution area 43 is a top plate with the water distribution holes 431, two sides of the top plate are all V-shaped mud flaps 44 connected with the top plate, the trapezoid water distribution areas 43 are connected with each other, each two adjacent trapezoid water distribution areas 43 share one V-shaped mud flap 44, and a sedimentation bin mud collecting groove 45 is formed between the two adjacent V-shaped mud flaps 44 at the lower part of the trapezoid water distribution areas 43;
The top of the sedimentation bin 4, which is close to one side of the clean water bin 5, is provided with an overflow weir plate 51, and the sedimentation bin 4 and the clean water bin 5 share the overflow weir plate 51;
The clean water bin 5 is adjacent to the filtering and sterilizing bin 6, the lower part of the sterilizing bin 6 is provided with a filtering area 61, the lower part of the clean water bin 5 is communicated with the filtering area 61 through a clean water bin water outlet 52, the bottom of the filtering area 61 is provided with a plurality of filtering area mud collecting grooves 612, a mud collecting plate 613 is arranged below the filtering area mud collecting grooves 612, the middle upper part of the filtering area 61 is provided with three layers of filtering plates 611, a hole-type water distribution plate 614 is arranged above the three layers of filtering plates 611, the upper part of the sterilizing bin 6 is provided with a sterilizing area 62, the sterilizing area 62 is arranged at the upper part of the hole-type water distribution plate 614, a plurality of ultraviolet lamp tubes 621 which are placed at equal intervals are fixedly arranged in the sterilizing area 62, the upper part of the side wall of the sterilizing area 62, which is far away from the clean water bin 5, is provided with a clean water outlet 63, the position of the clean water outlet 63 is provided with a third electronic valve 632, the side wall of the sterilizing area 62 below the clean water outlet 63 is provided with a liquid level sensor 631, the bottom of the filtering area 61 is also provided with a back flushing water outlet 64, the back flushing water outlet 64 is connected with a water inlet main pipe 22, and the joint of the back flushing water outlet 64 and the water inlet main pipe 22 is provided with a fourth electronic valve 641;
The water purifying water outlet 63 is connected with a water outlet assembly bin 7 by a water purifying water outlet pipe 71, a water outlet pump 72 is arranged at the water outlet end of the water purifying water outlet pipe 71 in the water outlet assembly bin 7, the water outlet end of the water outlet pump 72 is connected with a water quality real-time monitor 73, an infrared faucet 13 is arranged on the equipment shell 1, the water outlet end of the water quality real-time monitor 73 is connected with the infrared faucet 13, a non-standard water outlet 74 and a standard water outlet 75 are also arranged at the water outlet end of the water quality real-time monitor 73, the non-standard water outlet 74 is connected with the non-standard water outlet pipe, a fifth electronic valve 741 is arranged on the non-standard water outlet pipe, the standard water outlet 75 is connected with the standard water outlet pipe, a sixth electronic valve 751 is arranged on the standard water outlet pipe, a water outlet assembly bin support 76 is arranged in the middle of the water outlet assembly bin 7, and the water outlet pump 72 and the water quality real-time monitor 73 are arranged on the water outlet assembly bin support 76;
The water quality data and other notices can be displayed in real time by arranging a mirror 12 above an infrared faucet 13 on the equipment shell 1, an LED display screen 11 is arranged on the equipment shell 1 above the mirror 12, an infrared sensor 131 is arranged on the equipment shell 1 below the infrared faucet 13, a funnel-shaped water tank 14 is arranged right below the infrared faucet 13, the side surface of the funnel-shaped water tank 14 is fixed on the equipment shell 1, a water filtering plate 15 is arranged in the middle of the funnel-shaped water tank 14, a water tank water collecting pipe outlet 161 is arranged on the water tank wall of the funnel-shaped water tank 14 below the water outlet assembly bin 7, the water tank water collecting pipe outlet 161 is connected with a water tank water collecting pipe 16, the water tank water collecting pipe 16 passes through the lower part of the water outlet assembly bin 7 and extends out of the rear of the lower part of the water outlet assembly bin 7, a water inlet main pipe 22 is connected with the water tank water collecting pipe 16 through a back flushing pipe, and a first electronic valve 162 is arranged on the back flushing pipe, so that the water resource can be recycled;
The first electronic valve 162, the second electronic valve 231, the third electronic valve 632, the fourth electronic valve 641, the fifth electronic valve 741 and the sixth electronic valve 751 are all electrically connected with the equipment side switch 17, and the equipment side switch 17 is arranged on the equipment shell 1.
Example 2
On the basis of embodiment 1, a working method of an automatic water purifying device comprises the following steps:
The second electronic valve 231 at the raw water inlet 23 is opened through the side switch 17, and the fourth electronic valve 641 at the backwash water outlet 64 at the bottom of the filtration and disinfection bin 6 is closed;
Raw water enters a water inlet pipe 21 from a raw water inlet port 23 and enters a flocculation stirring bin 3 under the action of a water inlet pump 2, and the raw water is primarily purified by flocculation stirring, a motor 302 drives a rotating shaft 304 to slowly rotate, an air compressor 301 blows air along an air inlet pipe 312, the air sequentially enters a large-scale air flotation stirring fan blade 309 and a small-scale air flotation stirring fan blade 310 along the inner space of the rotating shaft 304, a plurality of air flotation holes 8 uniformly arranged on the fan blade surfaces of the large-scale air flotation stirring fan blade 309 and the small-scale air flotation stirring fan blade 310 blow air into a water body, and the flocculation stirring is combined with air flotation, the stirring of the large-scale air flotation stirring fan blade 309 and the small-scale air flotation stirring fan blade 310 accelerates the mixing between the raw water and a flocculating agent, enhances flocculation, improves the removal efficiency of pollutants such as particulate matters, oils and the like in the raw water, reduces the load for subsequent sedimentation filtration, and small-bubble air blown by the air flotation holes 8 wraps up tiny particles in the raw water, forms scum on the top of the stirring bin 3, scum is scraped into a scum collection tank 306 by a scum scraping plate 305, and is temporarily stored in a scum collection box 307;
the raw water subjected to flocculation air floatation enters a sedimentation tank water inlet pipe 41 in a sedimentation tank 4 through a flocculation water outlet pipe 308 at the top in the flocculation stirring tank 3, sludge is recycled by a sludge pipe 311 at the lower part in the flocculation stirring tank 3, the raw water subjected to flocculation air floatation enters a trapezoid water distribution area 43 through a sedimentation tank water inlet hole 42 above the sedimentation tank water inlet pipe 41, then uniformly enters the sedimentation tank 4 through a water distribution hole 431 on the top plate of the trapezoid water distribution area 43, the water inflow is uniformly flowed into the sedimentation tank 4 through an inverted V-shaped water distribution cover 432 above the water distribution hole 431 of each trapezoid water distribution area 43, the impact of the water inflow on the sedimentation area is reduced, the sedimentation efficiency is improved, a V-shaped mud baffle 44 and a sedimentation tank sludge collecting groove 45 arranged at the bottom of the sedimentation tank 4 collect the sludge falling from an upper inclined pipe 47 and a lower inclined pipe 46, the inverted V-shaped water distribution cover 432 prevents the falling sludge from blocking the water distribution hole 431, and the clear water after being settled through the upper inclined pipe 47 and the lower inclined pipe 46 enters a clear water overflow plate 51;
The clean water in the clean water bin 5 enters the filtering area 61 at the lower part of the filtering and disinfecting bin 6 through the clean water bin water outlet holes 52, the clean water is purified again through the three layers of filtering plates 611, the purified water is uniformly distributed to the disinfecting area 62 through the hole-type water distribution plate 614, and a plurality of ultraviolet lamp tubes 621 fixedly arranged in the disinfecting area 62 at equal intervals carry out ultraviolet disinfection on the water distribution;
The disinfected part of purified water enters the real-time water quality monitor 73 in the water outlet assembly bin 7 after passing through the purified water outlet pipe 71 and the water outlet pump 72 by the third electronic valve 632, and at the moment, the third electronic valve 632, the fifth electronic valve 741 and the sixth electronic valve 751 are closed by the equipment side switch 17;
when the water quality is up to the standard, the sixth electronic valve 751 is opened through the side switch 17, and the purified water flows out through the up-to-standard water outlet 75 and is used by a user through the infrared faucet 13;
The first electronic valve 162 is automatically opened when the liquid level in the filtration and disinfection bin 6 is higher than the liquid level sensor 631;
when the water consumption of the crowd is at the lowest peak, a back flushing function is started, when the back flushing function is started, the second electronic valve 231 at the raw water inlet 23 is closed, and when the liquid level is lower than the liquid level sensor 631 below the purified water outlet 63 of the filtration and disinfection bin 6, the first electronic valve 162 on a back flushing pipe connected with the pond water collecting pipe 16 is closed, meanwhile, the fourth electronic valve 641 at the back flushing water outlet 64 at the bottom of the filtration and disinfection bin 6 is opened through the side switch 17, the fifth electronic valve 741 at the unqualified water outlet 74 and the sixth electronic valve 751 at the qualified water outlet 75 are closed, the water of the filtration and disinfection bin 6 is pumped by the water inlet pump 2 to back flush the three-layer filter plate 611, and the automatic closing time of the fourth electronic valve 641 at the back flushing water outlet 64 can be set.