CN112110597A

CN112110597A - Rural domestic sewage treatment plant based on solar energy power supply

Info

Publication number: CN112110597A
Application number: CN202011165918.3A
Authority: CN
Inventors: 胡金凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-23
Filing date: 2020-10-27
Publication date: 2020-12-22
Also published as: CN111747590A

Abstract

The invention relates to the field of sewage treatment, in particular to a rural domestic sewage treatment device based on solar power supply, which comprises a primary filtering mechanism, a secondary filtering mechanism, a high-temperature sterilizing mechanism, a cooling mechanism, a solar power supply mechanism and a master control cabinet, wherein sewage is sequentially treated by the primary filtering mechanism, the secondary filtering mechanism, the high-temperature sterilizing mechanism and the cooling mechanism to obtain reusable irrigation water, the solar power supply mechanism is arranged on the lateral parts of the primary filtering mechanism, the secondary filtering mechanism, the high-temperature sterilizing mechanism and the cooling mechanism, the master control cabinet is arranged on the lateral part of the solar power supply mechanism, and the primary filtering mechanism, the secondary filtering mechanism, the high-temperature sterilizing mechanism and the cooling mechanism are all electrically connected with the master control cabinet. Ensures that the sewage treatment is more thorough and obtains the irrigation water which can be recycled.

Description

Rural domestic sewage treatment plant based on solar energy power supply

Technical Field

The invention relates to the field of sewage treatment, in particular to a rural domestic sewage treatment device based on solar power supply.

Background

A plurality of sewage treatment plants are arranged in cities and towns in China, a plurality of pollution sources can be treated in a centralized manner, but in rural areas, most rural areas in China are distributed in hilly and mountainous areas with fluctuant terrain, the dispersibility is high, the sewage collection difficulty is very high, most villages have no sewage drainage pipeline, the phenomenon of splashing and falling is serious, rainwater, sewage and urine are mixed and discharged into nearby natural water bodies or farmlands, the sewage cannot be effectively collected, domestic sewage and agricultural sewage in the rural areas are directly discharged without being treated, the local environment is deteriorated, and the water quality of other places can be influenced when the sewage directly flows into lakes.

Disclosure of Invention

In order to solve the technical problem, the rural domestic sewage treatment device based on solar power supply is provided, the technical scheme solves the problem of high cost of rural sewage treatment, the rural domestic sewage treatment device is energy-saving and environment-friendly through a solar power supply mode, is suitable for rural use, and ensures that sewage treatment is more thorough through treatment of multiple processes to obtain irrigation water capable of being recycled.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:

a rural domestic sewage treatment device based on solar power supply comprises a primary filtering mechanism, a secondary filtering mechanism, a high-temperature disinfection mechanism, a cooling mechanism, a solar power supply mechanism and a master control cabinet, wherein sewage sequentially passes through the primary filtering mechanism, the secondary filtering mechanism, the high-temperature disinfection mechanism and the cooling mechanism to obtain irrigation water capable of being recycled, the output end of the primary filtering mechanism is connected with the input end of the secondary filtering mechanism, meanwhile, the secondary filtering mechanism is provided with two output ends, one output end of the secondary filtering mechanism is connected with the input end of the high-temperature disinfection mechanism, the other output end of the secondary filtering mechanism is connected with the input end of the primary filtering mechanism, the output end of the high-temperature disinfection mechanism is connected with the input end of the cooling mechanism, and the side parts of the primary filtering mechanism, the secondary filtering mechanism, the high-temperature disinfection mechanism and the cooling mechanism are provided with the solar, the lateral part of solar energy power supply mechanism is equipped with total control cabinet, primary filter mechanism, secondary filter mechanism, high temperature disinfection mechanism, cooling body all with total control cabinet electric connection, solar energy power supply mechanism is primary filter mechanism, secondary filter mechanism, high temperature disinfection mechanism, cooling body and supplies power.

Optionally, the primary filtering mechanism comprises a primary filtering barrel, a platform and a filtering component, the primary filtering barrel is vertically arranged, a barrel cover is hinged to the top end of the primary filtering barrel, the barrel cover is provided with a first liquid inlet and a second liquid inlet which are communicated with the interior of the primary filter barrel, the bottom end of the primary filter barrel is provided with a first liquid outlet, the interior of the primary filter barrel is provided with a plurality of spirally arranged building blocks, each building block comprises two assembly blocks which are arranged in a group, each assembly block is provided with an assembly column, each building block can be detachably connected with one filter assembly, each filter assembly comprises a filter box, a filter plate and a building block, the top of filter cartridge sets up to the opening, and the bottom of filter cartridge is equipped with the filter plate is equipped with the filtration pore on the filter plate, and filter cartridge open-ended border department is equipped with two that set up in pairs the platform, the platform overlap joint is on the assembly piece, and is equipped with on the platform and assembles the post joint complex pilot hole.

Optionally, the filter box is set to be cylindrical, a certain gap is formed between the outer wall of the filter box and the inner wall of the primary filter barrel, and a plurality of building blocks are spirally distributed in the gap.

Optionally, the secondary filtering mechanism comprises a secondary filtering box, a pushing and driving gear motor, a pushing screw shaft, a water quality monitoring sensor, a backflow pipeline and a pump, the secondary filtering mechanism is arranged at the bottom of the primary filtering mechanism, a third liquid inlet and a liquid filling opening are formed in the top end of the secondary filtering box, the third liquid inlet is communicated with the first liquid outlet, a second liquid outlet and a backflow outlet are respectively formed in the bottom end of the secondary filtering box, the backflow outlet is close to the third liquid inlet, the second liquid outlet is far away from the third liquid inlet, the pushing and driving gear motor is arranged on the side portion of the secondary filtering box, an output shaft of the pushing and driving gear motor is in transmission connection with the pushing screw shaft, the pushing screw shaft is rotatably connected inside the secondary filtering box, a paddle which is spirally arranged on the pushing screw shaft, and the water quality monitoring sensor is arranged inside the secondary filtering box, the water quality monitoring sensor is arranged close to the second liquid outlet, the backflow outlet is connected with the second liquid inlet through the backflow pipeline, and the pump is arranged on the backflow pipeline.

Optionally, the inner diameter of the end of the backflow pipeline connected with the backflow outlet is larger than the inner diameter of the end of the backflow pipeline connected with the second liquid inlet.

Optionally, the high-temperature disinfection mechanism includes disinfection box, high disinfection generator, disinfection controller and heating pipe, and the high-temperature disinfection mechanism sets up in secondary filter mechanism's bottom, the top and the bottom of disinfection box are equipped with fourth inlet and third liquid outlet respectively, fourth inlet and second liquid outlet intercommunication, the inside of disinfection box is equipped with the heating pipe, heating pipe set up to nearly font, be equipped with on the heating pipe high disinfection generator with the disinfection controller.

Optionally, the cooling mechanism includes cooling box, condensation generator and condensation duct, and cooling mechanism sets up the bottom at high temperature disinfection mechanism, the cooling box with third liquid outlet intercommunication, the lateral part of cooling box is equipped with condensation generator is equipped with on the condensation generator condensation duct, condensation duct run through the cooling box setting, and the part of condensation duct in the cooling box sets up to the heliciform.

Compared with the prior art, the invention has the beneficial effects that:

the sewage sequentially passes through a primary filtering mechanism, a section filtering mechanism, a high-temperature disinfection mechanism and a cooling mechanism, the primary filtering mechanism adopts a physical filtering mode, the sewage to be treated is added into a primary filtering barrel through a first liquid inlet, a plurality of layers of filtering components are arranged in the primary filtering mechanism, the filtering components with the corresponding layers can be installed according to the conditions, meanwhile, various physical filtering materials are placed in a filtering box, impurities in the sewage can be effectively adsorbed, bleaching powder, abnormal colors, peculiar smell and the like in the water are adsorbed, bacteria, microorganisms and colloid in the water are removed, the turbidity degree of the sewage is obviously reduced, a secondary filtering mechanism adopts a chemical filtering mode, chemical reagents are added into a secondary filtering box through a liquid inlet, the bacteria and the microorganisms in the water are further removed, and a water quality monitoring sensor for detecting the water quality is arranged in the secondary filtering box, the water quality is fed back through the water quality monitoring sensor to control the positive and negative rotation of the secondary filter tank, the water in the secondary filter tank can be pushed back to flow back to the backflow outlet and is treated by the primary filtering mechanism and the primary filtering mechanism until the detection is qualified. Through the treatment of a plurality of procedures, the sewage treatment is ensured to be more thorough, and the irrigation water capable of being recycled is obtained. The solar energy power supply mode is adopted, so that the energy is saved, the environment is protected, and the solar energy power supply device is suitable for rural areas.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a side view of the present invention

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a second side view of the present invention;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a top view of a portion of the filter cassette of the present invention shown separated from the primary filter basket;

FIG. 8 is a schematic cross-sectional view taken at C-C of FIG. 7;

fig. 9 is a perspective cross-sectional view at C-C in fig. 7.

Description of the drawings:

1-a primary filtration mechanism; 1 a-a primary filtration tank; 1a 1-tub lid; 1a 2-first loading port; 1a 3-a second loading port; 1a4 — a first exit port; 1 b-building a platform; 1 c-a filter assembly; 1c 1-cartridge; 1c 2-filter pad; 1c 3-landing; 1c 4-assembly holes;

2-a secondary filtration mechanism; 2 a-a secondary filtration tank; 2a 1-third inlet; 2a2 — a second exit port; 2a 3-reflux outlet; 2a 4-filling opening; 2 b-pushing and driving a speed reducing motor; 2 c-pushing the screw shaft; 2 d-a water quality monitoring sensor; 2 e-a return line; 2 f-pump;

3-a high-temperature disinfection mechanism; 3 a-sterilizing the box body; 3a 1-fourth loading port; 3a 2-a third exit port; 3 b-a high level disinfection generator; 3 c-a disinfection controller; 3 d-heating tube;

4-a cooling mechanism; 4 a-a cooling box body; 4 b-a condensation generator; 4 c-a condensation duct;

5-a solar power supply mechanism;

6-a master control cabinet.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1 and 2, the household sewage treatment device comprises a primary filtering mechanism 1, a secondary filtering mechanism 2, a high-temperature disinfection mechanism 3, a cooling mechanism 4, a solar power supply mechanism 5 and a master control cabinet 6, wherein sewage is sequentially treated by the primary filtering mechanism 1, the secondary filtering mechanism 2, the high-temperature disinfection mechanism 3 and the cooling mechanism 4, and is treated by multiple processes, so that the sewage is treated more thoroughly, and irrigation water capable of being recycled is obtained. Wherein, the output end of the primary filter mechanism 1 is connected with the input end of the secondary filter mechanism 2, the secondary filter mechanism 2 is provided with two output ends, one output end of the secondary filter mechanism 2 is connected with the input end of the high-temperature disinfection mechanism 3, the other output end of the secondary filter mechanism 2 is connected with the input end of the primary filter mechanism 1, the secondary filter mechanism 2 is provided with a sensor for detecting the water quality and is arranged close to the output end of the secondary filter mechanism 2 connected with the input end of the high-temperature disinfection mechanism 3, when the water quality detection at the position is qualified, the water body continues to circulate to the high-temperature disinfection mechanism 3, if the water quality detection at the position is unqualified, the secondary filter mechanism 2 reflows the water body in the secondary filter mechanism to the output end of the secondary filter mechanism 2 connected with the input end of the primary filter mechanism 1, after the primary filtration mechanism 1 and the secondary filtration mechanism 2 are processed, the detection is qualified. The output of high temperature disinfection mechanism 3 is connected with the input of cooling body 4, elementary filter structure 1, secondary filter structure 2, high temperature disinfection mechanism 3, the lateral part of cooling body 4 is equipped with solar power supply mechanism 5, the lateral part of solar power supply mechanism 5 is equipped with total control cabinet 6, elementary filter structure 1, secondary filter structure 2, high temperature disinfection mechanism 3, cooling body 4 all with total control cabinet 6 electric connection, solar power supply mechanism 5 is elementary filter structure 1, secondary filter structure 2, high temperature disinfection mechanism 3, cooling body 4 supplies power, in this embodiment, solar power supply mechanism 5 can adopt the solar panel of adjustable inclination, the photovoltaic effect that utilizes semiconductor material to take place under the illumination condition directly converts solar energy into the electric energy, and the angle is adjustable, conveniently absorb solar energy better.

Referring to fig. 7, 8 and 9, the primary filtering mechanism 1 includes a primary filtering barrel 1a, a platform 1b and a filtering component 1c, the primary filtering barrel 1a is vertically disposed, a top end of the primary filtering barrel 1a is hinged to a barrel cover 1a1, a first liquid inlet 1a2 and a second liquid inlet 1a3 which are communicated with the interior of the primary filtering barrel 1a are disposed on the barrel cover 1a1, a first liquid outlet 1a4 is disposed at a bottom end of the primary filtering barrel 1a, a filtering box 1c1 is cylindrical, a gap is disposed between an outer wall of the filtering box 1c1 and an inner wall of the primary filtering barrel 1a, a plurality of platforms 1b are spirally disposed in the gap, the platforms 1b include two assembling blocks disposed in a group, two assembling surfaces in each platform 1b are disposed on a same horizontal plane, an assembling column is disposed on each assembling block, a filtering component 1c is detachably connected to each platform 1b, and the filtering component 1c includes a filtering box 1c1, The filter plate 1c2 and the platform 1c3, the top of filter box 1c1 sets up to the opening, the bottom of filter box 1c1 is equipped with filter plate 1c2, be equipped with the filtration pore on the filter plate 1c2, the border department of filter box 1c1 opening is equipped with two platforms 1c3 that set up in pairs, platform 1c3 overlap joint is on the assembly block, and be equipped with the pilot hole 1c4 with the snap-fit of assembly column on the platform 1c 3.

The primary filtering mechanism 1 adopts a physical filtering mode, sewage to be treated is added into the primary filtering barrel 1a through the first liquid inlet 1a2, a plurality of layers of filtering components 1c are arranged in the filtering components 1c, the filtering components 1c with corresponding layers can be installed according to conditions, various physical filtering materials such as marble, quartz sand, ceramic filtering sheets, activated carbon, filtering cotton and the like are placed in the filtering box 1c1, filtering holes of the filtering plates 1c2 also have a certain filtering effect, in the embodiment, the aperture of the filtering plate 1c2 positioned on the upper layer can be larger than that of the filtering plate 1c2 positioned on the lower layer, impurities in the sewage can be effectively adsorbed through the filtering components 1c, bleaching powder, heterochrosis, peculiar smell and the like in the sewage are adsorbed, bacteria, microorganisms and colloid in the sewage are removed, and the turbidity degree of the sewage is obviously reduced. Filter component 1c is overlap joint respectively on two assembly pieces of taking platform 1b through two take platform 1c3 overlap joints to carry out the joint cooperation with the pilot hole 1c4 that corresponds with the assembly column and realize the dismantlement formula of filter component 1c in elementary filter vat 1a and change, conveniently wash and change the filter media wherein, be convenient for continuously use. Since a certain gap is arranged between the outer wall of the filter box 1c1 and the inner wall of the primary filter barrel 1a, the platforms 1b are spirally distributed in the gap, and the filter assemblies 1c of each layer cannot interfere with each other when being installed through the design.

Referring to fig. 3 and 4, the secondary filtering mechanism 2 includes a secondary filtering tank 2a, a driving and driving gear motor 2b, a driving screw shaft 2c, a water quality monitoring sensor 2d, a return pipe 2e and a pump 2f, the secondary filtering mechanism 2 is disposed at the bottom of the primary filtering mechanism 1, a third liquid inlet 2a1 and a liquid adding port 2a4 are disposed at the top end of the secondary filtering tank 2a, the third liquid inlet 2a1 is communicated with the first liquid outlet 1a4, the bottom end of the secondary filtering tank 2a is respectively provided with a second liquid outlet 2a2 and a return outlet 2a3, the return outlet 2a3 is disposed near the third liquid inlet 2a1, the second liquid outlet 2a2 is disposed far from the third liquid inlet 2a1, the side of the secondary filtering tank 2a is provided with the driving and driving gear motor 2b, the driving output shaft of the driving and driving gear motor 2b is connected to the driving screw shaft 2c, the driving screw shaft 2c is rotatably connected to the inside of the secondary filtering tank 2, the propeller shaft 2c is provided with a propeller blade, the secondary filter box 2a is internally provided with a water quality monitoring sensor 2d, the water quality monitoring sensor 2d is arranged close to the second liquid outlet 2a2, the backflow outlet 2a3 is connected with the second liquid inlet 1a3 through a backflow pipeline 2e, and the backflow pipeline 2e is provided with a pump 2 f.

The secondary filtering mechanism 2 adopts a chemical filtering mode, chemical reagents are added into a secondary filtering tank 2a through a liquid adding port 2a4 to further remove bacteria and microorganisms in water, when a driving speed reduction motor 2b is pushed to work, a pushing screw shaft 2c in the secondary filtering tank 2a is driven to rotate, a water body which is physically filtered by the primary filtering mechanism 1 in the secondary filtering tank 2a is pushed to a second liquid outlet 2a2 from a third liquid inlet 2a1, a water quality monitoring sensor 2d for detecting the water quality is arranged in the secondary filtering tank 2a, the water quality monitoring sensor 2d is arranged close to the second liquid outlet 2a2, when the water quality detection at the position is qualified, the secondary filtering tank 2a drives the pushing screw shaft 2c to continuously push the water body to the second liquid outlet 2a2, if the water quality detection at the position is unqualified, the secondary filtering tank 2a drives the pushing screw shaft 2c to reversely rotate, the pushing screw shaft 2c is opposite to the previous rotation direction, the water body in the secondary filter tank 2a is pushed back to flow back to the backflow outlet 2a3, control valves are correspondingly arranged at the second liquid outlet 2a2 and the backflow outlet 2a3, the water body returns to the primary filter mechanism 1 through the backflow pipeline 2e and the pump 2f, and the water body is processed by the primary filter mechanism 1 and the secondary filter mechanism 2 once until the water body is detected to be qualified.

In this embodiment, the inner diameter of the end of the backflow pipe 2e connected to the backflow outlet 2a3 is larger than the inner diameter of the end of the backflow pipe 2e connected to the second liquid inlet 1a3, so as to accelerate the backflow speed of the water body in the pump 2 f.

Referring to fig. 5 and 6, the high-temperature sterilization mechanism 3 includes a sterilization box 3a, a high-level sterilization generator 3b, a sterilization controller 3c and a heating pipe 3d, the high-temperature sterilization mechanism 3 is disposed at the bottom of the secondary filtering mechanism 2, a fourth liquid inlet 3a1 and a third liquid outlet 3a2 are respectively disposed at the top end and the bottom end of the sterilization box 3a, the fourth liquid inlet 3a1 is communicated with the second liquid outlet 2a2, the heating pipe 3d is disposed inside the sterilization box 3a, the heating pipe 3d is disposed in a zigzag shape, so that the contact area with the water body is increased, and the high-level sterilization generator 3b and the sterilization controller 3c are disposed on the heating pipe 3 d. Whether the heating pipe 3d works and the parameter in the work are controlled respectively through the high disinfection generator 3b and the disinfection controller 3c, the temperature of the water body in the heating and disinfection box body 3a utilizes the mode of high-temperature heating to carry out high-temperature disinfection treatment on the bacteria in the sewage after physical and chemical treatment, so that the water quality treatment is more thorough.

Cooling body 4 includes cooling box 4a, condensation generator 4b and condensation duct 4c, cooling body 4 sets up the bottom at high temperature disinfection mechanism 3, cooling box 4a and third liquid outlet 3a2 intercommunication, cooling box 4 a's lateral part is equipped with condensation generator 4b, be equipped with condensation duct 4c on condensation generator 4b, condensation duct 4c runs through cooling box 4a and sets up, and the part of condensation duct 4c in cooling box 4a sets up to the heliciform. In order to avoid scalding people or crops by the water body heated at high temperature, the water body or gas for condensation is introduced into the condensation pipeline 4c, the condensation generator 4b is used for continuous refrigeration, and the temperature of the water body in the cooling box body 4a is cooled.

The working principle of the invention is as follows: the sewage sequentially passes through a primary filtering mechanism 1, a secondary filtering mechanism 2, a high-temperature disinfection mechanism 3 and a cooling mechanism 4 for treatment, the primary filtering mechanism 1 adopts a physical filtering mode, the sewage to be treated is added into a primary filtering barrel 1a through a first liquid inlet 1a2, a multi-layer filtering component 1c is arranged in the primary filtering mechanism 1, the filtering components 1c with corresponding layers can be installed according to conditions, various physical filtering materials are placed in a filtering box 1c1, impurities in the sewage can be effectively adsorbed, bleaching powder, heterochrosis, peculiar smell and the like in the water are adsorbed, bacteria, microorganisms and colloid in the water are removed, the turbidity degree of the sewage is obviously reduced, the secondary filtering mechanism 2 adopts a chemical filtering mode, chemical reagents are added into a secondary filtering box 2a through a liquid adding opening 2a4, and the bacteria and the microorganisms in the water are further removed, the water quality monitoring sensor 2d for detecting the water quality is arranged in the secondary filter tank 2a, the water quality is fed back through the water quality monitoring sensor 2d to control the positive and negative rotation of the secondary filter tank 2a, the water in the secondary filter tank 2a can be pushed back to flow back to the position of the backflow outlet 2a3, and the water is treated by the primary filtering mechanism 1 and the secondary filtering mechanism 2 until the water quality is detected to be qualified. Through the treatment of a plurality of procedures, the sewage treatment is ensured to be more thorough, and the irrigation water capable of being recycled is obtained. The solar energy power supply mode is adopted, so that the energy is saved, the environment is protected, and the solar energy power supply device is suitable for rural areas.

The device/apparatus/method realizes the functions of the invention by the following steps, thereby solving the technical problems proposed by the invention:

firstly, sewage to be treated is added into a primary filter barrel 1a through a first liquid inlet 1a2, a primary filter mechanism 1 adopts a physical filtering mode, a multi-layer filter component 1c is arranged in the primary filter mechanism 1, various physical filter materials are placed in a filter box 1c1, impurities in the sewage are effectively adsorbed, bleaching powder, heterochrosis, peculiar smell and the like in the water are adsorbed, bacteria, microorganisms and colloid in the water are removed, and the turbidity degree of the sewage is obviously reduced;

secondly, adding a chemical reagent into the secondary filter tank 2a through the liquid filling port 2a4, further removing bacteria and microorganisms in water by the secondary filter mechanism 2 in a chemical filtering mode, adding the chemical reagent into the secondary filter tank 2a through the liquid filling port 2a4, further removing the bacteria and the microorganisms in the water, arranging a water quality monitoring sensor 2d for detecting the water quality in the secondary filter tank 2a, feeding back the water quality through the water quality monitoring sensor 2d to control the forward and reverse rotation of the secondary filter tank 2a, pushing the water in the secondary filter tank 2a back to the backflow outlet 2a3, and processing the water by the primary filter mechanism 1 and the secondary filter mechanism 2 until the water is detected to be qualified;

thirdly, whether the heating pipe 3d works and parameters in the working process are respectively controlled through the heating pipe 3d and the disinfection controller 3c, the temperature of the water body in the disinfection box body 3a is heated, and bacteria in the sewage treated by physical and chemical modes are disinfected at high temperature in a high-temperature heating mode, so that the water quality treatment is more thorough;

and step four, finally, because the condensation water body or gas is introduced into the condensation pipeline 4c, the condensation generator 4b is utilized for continuous refrigeration, and the temperature of the water body in the cooling box body 4a is cooled to obtain the treated water body.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A rural domestic sewage treatment device based on solar power supply is characterized by comprising a primary filtering mechanism (1), a secondary filtering mechanism (2), a high-temperature sterilizing mechanism (3), a cooling mechanism (4), a solar power supply mechanism (5) and a master control cabinet (6), wherein sewage sequentially passes through the primary filtering mechanism (1), the secondary filtering mechanism (2), the high-temperature sterilizing mechanism (3) and the cooling mechanism (4) to be treated to obtain reusable irrigation water, the output end of the primary filtering mechanism (1) is connected with the input end of the secondary filtering mechanism (2), the secondary filtering mechanism (2) is provided with two output ends, one output end of the secondary filtering mechanism (2) is connected with the input end of the high-temperature sterilizing mechanism (3), the other output end of the secondary filtering mechanism (2) is connected with the input end of the primary filtering mechanism (1), the output of high temperature disinfection mechanism (3) is connected with the input of cooling body (4), and the lateral part of primary filter mechanism (1), secondary filter mechanism (2), high temperature disinfection mechanism (3), cooling body (4) is equipped with solar energy power supply mechanism (5), the lateral part of solar energy power supply mechanism (5) is equipped with total control cabinet (6), primary filter mechanism (1), secondary filter mechanism (2), high temperature disinfection mechanism (3), cooling body (4) all with total control cabinet (6) electric connection, solar energy power supply mechanism (5) are supplied power for primary filter mechanism (1), secondary filter mechanism (2), high temperature disinfection mechanism (3), cooling body (4).

2. The rural domestic sewage treatment device based on solar power supply according to claim 1, wherein the primary filtering mechanism (1) comprises a primary filtering barrel (1 a), a platform (1 b) and a filtering component (1 c), the primary filtering barrel (1 a) is vertically arranged, the top end of the primary filtering barrel (1 a) is hinged with a barrel cover (1 a 1), the barrel cover (1 a 1) is provided with a first liquid inlet (1 a 2) and a second liquid inlet (1 a 3) which are communicated with the interior of the primary filtering barrel (1 a), the bottom end of the primary filtering barrel (1 a) is provided with a first liquid outlet (1 a 4), the interior of the primary filtering barrel (1 a) is provided with a plurality of the platforms (1 b) which are spirally arranged, the platform (1 b) comprises two assembling blocks which are arranged in a group, each assembling block is provided with an assembling column, and each platform (1 b) is detachably connected with one filtering component (1 c), filter component (1 c) includes filter cartridge (1 c 1), filter plate (1 c 2) and takes platform (1 c 3), the top of filter cartridge (1 c 1) sets up to the opening, and the bottom of filter cartridge (1 c 1) is equipped with filter plate (1 c 2), is equipped with the filtration pore on filter plate (1 c 2), and filter cartridge (1 c 1) open-ended border department is equipped with two that set up in pairs take platform (1 c 3), take platform (1 c 3) overlap joint on the assembly piece, and take and be equipped with on platform (1 c 3) with assembly post joint complex pilot hole (1 c 4).

3. The rural domestic sewage treatment device based on solar power supply of claim 2, wherein the filter box (1 c 1) is cylindrical, a certain gap is arranged between the outer wall of the filter box (1 c 1) and the inner wall of the primary filter barrel (1 a), and a plurality of platforms (1 b) are spirally distributed in the gap.

4. The rural domestic sewage treatment device based on solar power supply of claim 3, wherein the secondary filtering mechanism (2) comprises a secondary filtering box (2 a), a driving and driving gear motor (2 b), a driving screw shaft (2 c), a water quality monitoring sensor (2 d), a return pipeline (2 e) and a pump (2 f), the secondary filtering mechanism (2) is arranged at the bottom of the primary filtering mechanism (1), the top end of the secondary filtering box (2 a) is provided with a third liquid inlet (2 a 1) and a liquid adding port (2 a 4), the third liquid inlet (2 a 1) is communicated with the first liquid outlet (1 a 4), the bottom end of the secondary filtering box (2 a) is respectively provided with a second liquid outlet (2 a 2) and a return outlet (2 a 3), the return outlet (2 a 3) is arranged close to the third liquid inlet (2 a 1), and the second liquid outlet (2 a 2) is arranged far away from the third liquid inlet (2 a 1), the lateral part of secondary rose box (2 a) is equipped with promote drive gear motor (2 b), the output shaft transmission that promotes drive gear motor (2 b) is connected with promote screw axis (2 c), promote screw axis (2 c) and rotate to connect inside secondary rose box (2 a), promote the paddle that is equipped with spiral setting on screw axis (2 c), secondary rose box (2 a) inside is equipped with water quality monitoring sensor (2 d), water quality monitoring sensor (2 d) are close to second liquid outlet (2 a 2) and set up, and backward flow export (2 a 3) passes through backflow pipeline (2 e) with second inlet (1 a 3) are connected, are equipped with on backflow pipeline (2 e) pump machine (2 f).

5. The rural domestic sewage treatment device based on solar power supply of claim 4, wherein the inner diameter of the end of the return pipe (2 e) connected with the return outlet (2 a 3) is larger than the inner diameter of the end of the return pipe (2 e) connected with the second liquid inlet (1 a 3).

6. The rural domestic sewage treatment device based on solar power supply of claim 5, wherein the high temperature disinfection mechanism (3) comprises a disinfection box body (3 a), a high disinfection generator (3 b), a disinfection controller (3 c) and a heating pipe (3 d), the high temperature disinfection mechanism (3) is arranged at the bottom of the secondary filtering mechanism (2), the top end and the bottom end of the disinfection box body (3 a) are respectively provided with a fourth liquid inlet (3 a 1) and a third liquid outlet (3 a 2), the fourth liquid inlet (3 a 1) is communicated with the second liquid outlet (2 a 2), the heating pipe (3 d) is arranged inside the disinfection box body (3 a), the heating pipe (3 d) is arranged in a shape like a Chinese character 'ji', and the high disinfection generator (3 b) and the disinfection controller (3 c) are arranged on the heating pipe (3 d).

7. The rural domestic sewage treatment device based on solar power supply according to claim 6, wherein the cooling mechanism (4) comprises a cooling box (4 a), a condensation generator (4 b) and a condensation pipeline (4 c), the cooling mechanism (4) is arranged at the bottom of the high-temperature disinfection mechanism (3), the cooling box (4 a) is communicated with the third liquid outlet (3 a 2), the condensation generator (4 b) is arranged at the side part of the cooling box (4 a), the condensation pipeline (4 c) is arranged on the condensation generator (4 b), the condensation pipeline (4 c) penetrates through the cooling box (4 a), and the part of the condensation pipeline (4 c) in the cooling box (4 a) is arranged in a spiral shape.