CN115999238B - Water circulation filtering device and method of geothermal energy system - Google Patents
Water circulation filtering device and method of geothermal energy system Download PDFInfo
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- CN115999238B CN115999238B CN202310295606.1A CN202310295606A CN115999238B CN 115999238 B CN115999238 B CN 115999238B CN 202310295606 A CN202310295606 A CN 202310295606A CN 115999238 B CN115999238 B CN 115999238B
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Abstract
The invention provides a water circulation filtering device and a water circulation filtering method of a geothermal energy system, and belongs to the field of geothermal energy development and utilization. Including main filter, vice filter, total inlet tube, total outlet pipe, first three-way valve, second three-way valve, seted up first annular groove and setting up rotatory scraper blade in main filter is inside, and the impact force that utilizes the water makes the doctor blade rotate, scrapes and gets debris, and first filter screen is provided with fan-shaped recess, when the doctor blade scrapes debris fan-shaped recess position, under the impact effect and the gravity effect of rivers for debris can fall into smoothly and connect the sand pipe. The camera is arranged at the bottom of the main filter, after the impurities of the sand receiving pipe reach the set quantity, the auxiliary filter is started, the filter screen of the main filter is washed by the aid of the bidirectional peristaltic pump, after the auxiliary filter is used for a period of time, the filter screen of the auxiliary filter is washed by the aid of the bidirectional peristaltic pump, and the machine is not required to be shut down in the cleaning process.
Description
Technical Field
The invention relates to the field of development and utilization of geothermal energy, in particular to a water circulation filtering device and method of a geothermal energy system.
Background
With the improvement of life quality of people, energy consumption is increased, fossil fuel is a non-renewable resource, and a large amount of fossil fuel is used, so that not only is the storage quantity reduced, but also environmental pollution is caused by combustion, and a greenhouse effect is caused, so that new energy needs to be developed and utilized. Geothermal energy is used as a clean energy source and can be used for power generation, heating, agriculture and the like. In the using process of the geothermal energy, groundwater is pumped into a water source heat pump unit on the ground through a water pump to be heated or refrigerated, and the used water is sent into the ground through a recharging well and is reused after heat exchange with the earth again to improve the thermal energy. Because sand exists in the pumping well, if the sand is directly conveyed to the water source heat pump unit for use without effective filtration, the problems of pipeline blockage and the like can be caused, and therefore, water filtration is necessary. The existing filter needs to be cleaned or replaced after being used for a period of time, in the process, the machine stops running, the utilization rate of geothermal energy can be seriously affected, and the problem of unstable energy output can be caused, so that the cost is increased, and therefore, the filter which can be continuously stopped and has a filtering effect for a long time needs to be developed. The prior patent CN114405107A discloses an energy-saving and environment-friendly cultivation sewage treatment device, which can rotate by using water flow to impact fan blades to drive a scraping surface to rotate so as to scrape sundries on a filter screen, and a rotating rod of the device is arranged on the filter screen. In addition, patent CN108159764a also discloses a replacement-free self-cleaning filter, in which a rotating shaft is provided, and the rotating shaft is fixed on a metal filter screen, and the filter screen is cleaned by a fan blade. The rotating shaft is arranged on the filter screen, the structure is complex, and because of the impact of water flow, the stress of the connecting part of the rotating shaft and the filter screen is concentrated, the filter screen is easy to damage, the rotating shaft is provided with an infinite part, the rotating shaft is easy to incline, and if the limiting part is added on the filter screen, the filtering area of the filter screen is reduced, and the filtering efficiency is affected. Furthermore, since the particles on the filter screen are subjected to the impact force of water, the particles may stay on the filter screen continuously during scraping. If the scraper is stuck on the filter screen to scrape, the rotating friction force is increased, so that the water resistance is increased, and when the scraper is rubbed to scrape, particles on the filter screen can be pressed to the other side of the filter screen by the scraper, so that the filtering effect is weakened, and if the scraper is not contacted with the filter screen, part of impurities on the filter screen cannot be removed, so that the filtering is influenced. Further, since the filter is damaged and then requires maintenance by stopping the machine and cannot be continuously used for a long period of time, it is necessary to provide a filter which can be used for a long period of time and has a stable filtering effect.
Disclosure of Invention
In order to overcome the defects in the prior art and solve at least one problem in the background art, the invention provides the following technical scheme.
The utility model provides a hydrologic cycle filter equipment of geothermal energy system, including main filter, vice filter, total inlet tube, total outlet pipe, first three-way valve, the second three-way valve, main filter and vice filter are cylindric, highly uniform, both ends are closed about, main filter left end is equipped with first water inlet and second water inlet, the right-hand member is equipped with first delivery port and second delivery port, vice filter left end is equipped with third water inlet and fourth water inlet, the right-hand member is equipped with third delivery port and fourth delivery port, total inlet tube passes through the pipeline connection of first three-way valve with first water inlet and fourth water inlet, total outlet pipe passes through the pipeline connection of second three-way valve with first delivery port and fourth delivery port, second water inlet and third water inlet pass through first hose intercommunication, set up first solenoid valve on the first hose, second delivery port and third delivery port pass through the second hose intercommunication, set up the bi-directional peristaltic pump in the middle of the second hose; the diameters of the first water inlet, the fourth water inlet, the first water outlet and the fourth water outlet are the same, the first water inlet, the fourth water inlet, the first water outlet and the fourth water outlet are used for entering water to be filtered and outputting filtered water, the diameters of the second water inlet, the third water inlet, the second water outlet and the third water outlet are the same, the first water inlet, the third water outlet, the second water outlet and the third water outlet are used for shunting a part of water to back flush the filter screen, and the diameter of the first water inlet is larger than that of the second water inlet.
Be provided with rotatory scraper blade and first filter screen in the main filter, main filter bottom sets up the sand outlet, and sand outlet department is provided with sealing connection's sand receiving pipe, and sand receiving pipe adopts transparent material, can collect the impurity of striking off, and sand receiving pipe below is provided with the collecting vessel.
The main filter inner wall has seted up first annular groove, the bottom of first annular groove is provided with first arc recess, set up the ball in the first arc recess, rotatory scraper blade includes ring and a plurality of doctor-bar, a plurality of doctor-bars rotate and arrange in the ring, debris on the first filter screen can be cleared up, the ring lateral wall is provided with annular lug, annular lug inserts in the first annular groove, first annular groove can carry out spacingly to annular lug, annular lug lateral wall ring is equipped with the second arc recess, the ball is arranged in between first arc recess and the second arc recess, first filter screen is provided with fan-shaped recess, fan-shaped recess has two lateral walls, and the bottom plate of being connected with the lateral wall, the bottom plate does not have the filtration pore, the sand outlet is corresponding to fan-shaped recess below, rotatory scraper blade rotates, make a plurality of doctor-bars clear up the surface of first filter screen, when the doctor-bar scrapes debris to fan-shaped recess part, debris gets into fan-shaped recess under the impact of rivers, fall into in the sand receiving pipe.
Preferably, the scraping blade is not contacted with the first filter screen, and the interval between the scraping blade and the first filter screen is small, comprising (-mm), so that rigid friction between the scraping blade and the first filter screen does not occur, and a part of impurities which cannot be cleaned by the scraping blade on the first filter screen can be cleaned in a back flushing mode by utilizing a bidirectional peristaltic pump.
When the first filter screen of the main filter is required to be backwashed, the first electromagnetic valve and the second electromagnetic valve are closed, the first three-way valve is controlled to enable the total water inlet pipe to be communicated with a pipeline of the fourth water inlet, and the second three-way valve is controlled to enable the total water outlet pipe to be communicated with a pipeline of the fourth water outlet; and opening the first electromagnetic valve, and starting the bidirectional peristaltic pump to enable water flow to flow from the third water outlet to the second water outlet so as to flush the filter screen of the main filter.
After the auxiliary filter is used for a period of time, the auxiliary filter can be cleaned by using the bidirectional peristaltic pump, specifically, the first electromagnetic valve and the second electromagnetic valve are closed, the main water inlet pipe is communicated with a pipeline of the first water inlet of the main filter through the first three-way valve, the main water outlet pipe is communicated with a pipeline of the first water outlet through the second three-way valve, the first electromagnetic valve is opened, the bidirectional peristaltic pump is started to clean the second filter screen, and impurities of the auxiliary filter flow into the main filter through the second water inlet and then flow into the sand receiving pipe.
The camera is arranged below the main filter, the amount of impurities in the sand receiving pipe and the collecting barrel is identified through the image identification technology, when the amount of the impurities in the sand receiving pipe is piled up to a set height, the auxiliary filter is used for filtering, the first electromagnetic valve is closed, the second electromagnetic valve is started, the impurities are discharged to the collecting barrel, and the second electromagnetic valve is closed after the discharge is detected.
Preferably, the bottom plate is inclined in the direction of water flow, which is beneficial for impurities to flow into the sand receiving pipe 30.
Preferably, the second water outlet is higher than the first water outlet, the third water outlet is higher than the fourth water outlet, and the first filter screen and the second filter screen are both close to the water outlets, so that water input by the peristaltic pump can flush the filter screens from top to bottom, and the flushing effect is improved.
The filtering method of the water circulation filtering device comprises the following steps:
and the first electromagnetic valve and the second electromagnetic valve are closed, the total water inlet pipe is communicated with a pipeline of the first water inlet of the main filter through the first three-way valve, and the total water outlet pipe is communicated with a pipeline of the first water outlet through the second three-way valve.
And step two, identifying whether impurities in the sand receiving pipe reach a specified position through a camera on the sand receiving pipe, and if so, controlling the first three-way valve to enable the total water inlet pipe to be communicated with a pipeline of the fourth water inlet, and controlling the second three-way valve to enable the total water outlet pipe to be communicated with a pipeline of the fourth water outlet.
And thirdly, opening the first electromagnetic valve, starting the bidirectional peristaltic pump, enabling water flow to flow from the third water outlet to the second water outlet so as to flush a filter screen of the main filter, closing the bidirectional peristaltic pump and the first electromagnetic valve when the camera recognizes that sundries in the sand receiving pipe are not increased continuously, opening the second electromagnetic valve, discharging the sundries into the collecting barrel, and closing the second electromagnetic valve after the camera detects that the sundries are discharged.
After a set time interval, the total water inlet pipe is communicated with a pipeline of a first water inlet of the main filter through a first three-way valve, and the total water outlet pipe is communicated with a pipeline of a first water outlet through a second three-way valve; the first electromagnetic valve is opened, the bidirectional peristaltic pump is started, water flows from the second water outlet to the third water outlet, the filter screen of the auxiliary filter is washed, water in the auxiliary filter flows into the main filter through the second water inlet, impurities further flow into the sand receiving pipe, after a set time interval, the bidirectional peristaltic pump and the first electromagnetic valve are closed, a self-cleaning process is completed, and the steps are repeated.
The beneficial effects of the invention are as follows:
1. according to the invention, the first annular groove is formed in the main filter, the first arc-shaped groove is formed in the bottom of the first annular groove, the ball is arranged in the first arc-shaped groove, the rotary scraping plate comprises a circular ring and a plurality of scraping plates, the scraping plates are rotatably arranged in the circular ring and can clean sundries on the first filter screen, the annular protruding block is arranged on the outer side wall of the circular ring and is inserted into the first annular groove, the first annular groove can limit the annular protruding block, the second arc-shaped groove is formed on the outer side wall of the annular protruding block in a surrounding manner, the ball is arranged between the first arc-shaped groove and the second arc-shaped groove, the first filter screen is provided with the fan-shaped groove, a rotating structure is not needed, the structure is more stable, the scraping plates rotate by using the impact force of water, and sundries can be scraped by the fan-shaped groove, and under the impact action of water flow and the action of gravity, the sundries can smoothly fall into the sand receiving pipe when the scraping the sundries are scraped to the fan-shaped groove position by the scraping plates.
2. Be provided with main filter and auxiliary filter, main filter bottom sets up the camera, after the impurity volume of connecing the sand pipe reaches the volume of setting, start auxiliary filter, and start two-way peristaltic pump, wash the filter screen of main filter, after washing, close first solenoid valve and peristaltic pump, open the second solenoid valve, arrange the debris of connecing the sand pipe in the collecting vessel, and then improve the cleaning performance of filter screen, after auxiliary filter uses a period, start main filter, and start first solenoid valve and two-way peristaltic pump, wash the filter screen of auxiliary filter, auxiliary filter need not additionally to set up the doctor blade structure and also can realize cleaning, and need not to shut down the machine at clear in-process, can be by program automatic control, realize the automatically cleaning of filter screen.
Drawings
FIG. 1 is a top view of a connection of a primary filter and a secondary filter;
FIG. 2 is a front view of the main filter;
FIG. 3 is a block diagram of a primary filter;
FIG. 4 is a first screen configuration diagram;
in the figure: 1. a main filter; 2. a secondary filter; 3. a main water inlet pipe; 4. a main water outlet pipe; 5. a first three-way valve; 6. a second three-way valve; 7. a first water inlet; 8. a second water inlet; 9. a first electromagnetic valve; 10. a third water inlet; 11. a fourth water inlet; 12. a first water outlet; 13. a second water outlet; 14. a bi-directional peristaltic pump; 15. a third water outlet; 16. a fourth water outlet; 17. a first hose; 18 a second hose; 19. rotating the scraping plate; 20. a first filter screen; 21. a second filter screen; 22. a circular ring; 23. a wiper blade; 24. a first annular groove; 25. a first arcuate recess; 26. an annular bump; 27 a second arcuate recess; 28. a ball; 29. a sand outlet; 30. a sand receiving pipe; 31. a second electromagnetic valve; 32. a collecting barrel; 33. a camera; 34. a fan-shaped groove; 35. a sidewall; 36. a bottom plate.
Description of the embodiments
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Examples
As shown in fig. 1-4, the filter comprises a main filter 1, a secondary filter 2, a main water inlet pipe 3, a main water outlet pipe 4, a first three-way valve 5 and a second three-way valve 6, wherein the main filter 1 and the secondary filter 2 are cylindrical, the left end and the right end of the main filter 1 are closed, a first water inlet 7 and a second water inlet 8 are arranged at the left end of the main filter 1, a first water outlet 12 and a second water outlet 13 are arranged at the right end of the main filter 2, a third water inlet 10 and a fourth water inlet 11 are arranged at the left end of the secondary filter 2, a third water outlet 15 and a fourth water outlet 16 are arranged at the right end of the secondary filter 2, the main water inlet pipe 3 is connected with the pipelines of the first water inlet 7 and the fourth water inlet 11 through the first three-way valve 5, the main water outlet pipe 4 is connected with the pipelines of the first water outlet 12 and the fourth water outlet 16 through the second three-way valve 6, the second water inlet 8 is communicated with the third water inlet 10 through a first hose 17, a first electromagnetic valve 9 is arranged on the first hose 17, the second water outlet 13 is communicated with the third water outlet 15 through a second hose 18, and a bidirectional peristaltic pump 14 is arranged in the middle of the second hose 18; the diameters of the first water inlet 7, the fourth water inlet 11, the first water outlet 12 and the fourth water outlet 16 are the same, the diameters of the second water inlet 8, the third water inlet 10, the second water outlet 13 and the third water outlet 15 are the same, the diameters of the first water inlet 7 and the second water outlet 15 are larger than the diameters of the first water inlet 8, the second water inlet and the third water outlet are used for diverting a part of water to back flush the filter screen.
The main filter 1 is provided with a rotary scraper 19 and a first filter screen 20, the bottom of the main filter 1 is provided with a sand outlet 29, the sand outlet 29 is provided with a sand receiving pipe 30 in sealing connection, the sand receiving pipe 30 is made of transparent materials, scraped impurities can be collected, and a collecting barrel 32 is arranged below the sand receiving pipe 30.
The inner wall of the main filter 1 is provided with a first annular groove 24, the bottom of the first annular groove 24 is provided with a first arc groove 25, balls are arranged in the first arc groove 25, the rotary scraping plate 19 comprises a circular ring 22 and a plurality of scraping plates 23, the scraping plates 23 are rotatably arranged in the circular ring 22 and can clean sundries on the first filter screen 20, the outer side wall of the circular ring 22 is provided with an annular protruding block 26, the annular protruding block 26 is inserted into the first annular groove 24, the first annular groove 24 can limit the annular protruding block 26, the outer side wall of the annular protruding block 26 is provided with a second arc groove 27, the balls are arranged between the first arc groove 25 and the second arc groove 27, the first filter screen 20 is provided with a fan-shaped groove 34, the fan-shaped groove 34 is provided with two side walls 35, a bottom plate 36 connected with the side walls 35, the bottom plate 36 is not provided with filtering holes, the lower part of the fan-shaped groove 34 corresponds to the sand outlet 29, the rotary scraping plate 19 rotates, so that the plurality of scraping plates 23 clean the surface of the first filter screen 20, when the scraping plates 23 scrape the sundries to the fan-shaped groove 34, the sundries under the impact of water flow, and drop into the fan-shaped groove 34 under the sand drop into the fan-shaped groove 30.
The scraping blade 23 is not contacted with the first filter screen 20, the interval between the scraping blade 23 and the first filter screen 20 is small, and the interval comprises 0.01-0.05mm, so that rigid friction between the scraping blade 23 and the first filter screen 20 does not occur, and a part of impurities which cannot be cleaned by the scraping blade 23 are arranged on the first filter screen 20, and the cleaning can be performed in a back flushing mode by utilizing the bidirectional peristaltic pump 14.
When the first filter screen 20 of the main filter 1 is required to be backwashed, the first electromagnetic valve 9 and the second electromagnetic valve 31 are closed, the first three-way valve 5 is controlled to enable the total water inlet pipe 3 to be communicated with the pipeline of the fourth water inlet 11, and the second three-way valve 6 is controlled to enable the total water outlet pipe 4 to be communicated with the pipeline of the fourth water outlet 16; the first solenoid valve 9 is opened and the bi-directional peristaltic pump 14 is activated so that water flows from the third water outlet 15 to the second water outlet 13 to flush the screen of the main filter 1.
When the auxiliary filter 2 is used for a period of time, the bidirectional peristaltic pump 14 can be utilized to clean, specifically, the first electromagnetic valve 9 and the second electromagnetic valve 31 are closed, the total water inlet pipe 3 is communicated with the pipeline of the first water inlet 7 of the main filter 1 through the first three-way valve 5, the total water outlet pipe 4 is communicated with the pipeline of the first water outlet 12 through the second three-way valve 6, the first electromagnetic valve 9 is opened, the bidirectional peristaltic pump 14 is started, the second filter screen 21 is cleaned, and impurities of the auxiliary filter 2 flow into the main filter 1 through the second water inlet 8 and then flow into the sand receiving pipe 30.
The camera 33 is arranged below the main filter 1, the amount of impurities in the sand receiving pipe 30 and the collecting barrel 32 is identified through an image identification technology, when the amount of impurities in the sand receiving pipe 30 is piled up to a set height, the auxiliary filter 2 is used for filtering, the first electromagnetic valve 9 is closed, the second electromagnetic valve 31 is started, the impurities are discharged to the collecting barrel, and after the discharge is detected, the second electromagnetic valve 31 is closed.
Preferably, the bottom plate 36 is inclined in the direction of water flow to facilitate the flow of impurities into the sand receiving pipe 30.
Preferably, the second water outlet 13 is higher than the first water outlet 12, the third water outlet 15 is higher than the fourth water outlet 16, and the first filter screen 20 and the second filter screen 21 are both close to the water outlets, so that water input by the peristaltic pump can flush the filter screens from top to bottom, and the flushing effect is improved.
Examples
The filtering method of the water circulation filtering device comprises the following steps:
in the first step, the first electromagnetic valve 9 and the second electromagnetic valve 31 are closed, the total water inlet pipe 3 is communicated with the pipeline of the first water inlet 7 of the main filter 1 through the first three-way valve 5, and the total water outlet pipe 4 is communicated with the pipeline of the first water outlet 12 through the second three-way valve 6.
Step two, identifying whether the impurity in the sand receiving pipe 30 reaches a specified position through a camera 33 on the sand receiving pipe 30, if so, controlling the first three-way valve 5 to enable the total water inlet pipe 3 to be communicated with the pipeline of the fourth water inlet 11, and controlling the second three-way valve 6 to enable the total water outlet pipe 4 to be communicated with the pipeline of the fourth water outlet 16.
Step three, the first electromagnetic valve 9 is opened, the bidirectional peristaltic pump 14 is started, so that water flows from the third water outlet 15 to the second water outlet 13 to flush the filter screen of the main filter 1, when the camera 33 recognizes that sundries in the sand receiving pipe 30 are not increased any more, the bidirectional peristaltic pump 14 and the first electromagnetic valve 9 are closed, the second electromagnetic valve 31 is opened, sundries are discharged into the collecting barrel 32, and after the camera 33 detects that the sundries are discharged, the second electromagnetic valve 31 is closed.
After the time is set at intervals, the total water inlet pipe 3 is communicated with a pipeline of the first water inlet 7 of the main filter 1 through the first three-way valve 5, and the total water outlet pipe 4 is communicated with a pipeline of the first water outlet 12 through the second three-way valve 6; the first electromagnetic valve 9 is opened, the bidirectional peristaltic pump 14 is started, water flows from the second water outlet 13 to the third water outlet 15, the filter screen of the auxiliary filter 2 is washed, water in the auxiliary filter 2 flows into the main filter 1 through the second water inlet 8, impurities further flow into the sand receiving pipe 30, after a set time interval, the bidirectional peristaltic pump and the first electromagnetic valve are closed, a self-cleaning process is completed, and the steps are repeated.
Claims (4)
1. A water circulation filtering device of a geothermal energy system is characterized in that: the peristaltic pump comprises a main filter (1), an auxiliary filter (2), a main water inlet pipe (3), a main water outlet pipe (4), a first three-way valve (5) and a second three-way valve (6), wherein the main filter (1) and the auxiliary filter (2) are cylindrical, the left end and the right end of the main filter (1) are respectively closed, a first water inlet (7) and a second water inlet (8) are arranged at the left end of the main filter, a first water outlet (12) and a second water outlet (13) are arranged at the right end of the auxiliary filter (2), a third water inlet (10) and a fourth water inlet (11) are arranged at the left end of the auxiliary filter (2), a third water outlet (15) and a fourth water outlet (16) are arranged at the right end of the auxiliary filter, the main water inlet pipe (3) is connected with the first water inlet (7) and the fourth water inlet (11) through the first three-way valve (5), the main water outlet pipe (4) is connected with the first water outlet (12) and the fourth water outlet (16) through the second three-way valve (6), the second water inlet (8) is communicated with the third water inlet (10) through a first hose (17), the first water outlet (9) and the second water outlet (13) and the second electromagnetic valve (18) are arranged at the right end of the main filter (2) through a second hose (18), and the peristaltic pump (18) is arranged at the middle hose (18) and is two-way; the rotary scraping plate (19) and the first filter screen (20) are arranged in the main filter (1), the sand outlet (29) is formed in the bottom of the main filter (1), the sand receiving pipe (30) in sealing connection is arranged at the sand outlet (29), the sand receiving pipe (30) is made of transparent materials, the collecting barrel (32) is arranged below the sand receiving pipe (30), the first annular groove (24) is formed in the inner wall of the main filter (1), the first arc groove (25) is formed in the bottom of the first annular groove (24), balls are arranged in the first arc groove (25), the rotary scraping plate (19) comprises a circular ring (22) and a plurality of scraping plates (23), the scraping plates (23) are rotatably arranged in the circular ring (22), the outer side wall of the circular ring (22) is provided with an annular protruding block (26), the annular protruding block (26) is inserted into the first annular groove (24), the first annular groove (24) can limit the annular protruding block (26), the outer side wall of the annular protruding block (26) is provided with a second arc groove (27), and the balls are arranged between the first arc groove (25) and the second arc groove (27) by utilizing the force of the impact force of the scraping plates (23); the first filter screen (20) is provided with a sector groove (34), a sand outlet (29) is arranged below the sector groove (34), and a camera (33) is arranged below the main filter (1); the fan-shaped groove (34) is provided with two side walls (35) and a bottom plate (36) connected with the side walls (35), and the bottom plate (36) is provided with no filter holes; the bottom plate (36) is disposed obliquely to the direction of water flow.
2. The geothermal energy system water circulation filter device of claim 1, wherein: the level of the main filter (1) is consistent with that of the auxiliary filter (2).
3. The geothermal energy system water circulation filter device of claim 2, wherein: the diameters of the first water inlet (7), the fourth water inlet (11), the first water outlet (12) and the fourth water outlet (16) are the same, the diameters of the second water inlet (8), the third water inlet (10), the second water outlet (13) and the third water outlet (15) are the same, and the diameter of the first water inlet (7) is larger than that of the second water inlet (8).
4. A filtration method of a water circulation filtration device of a geothermal energy system according to any one of claims 1 to 3, characterized in that: step one, closing a first electromagnetic valve (9) and a second electromagnetic valve (31), wherein a main water inlet pipe (3) is communicated with a pipeline of a first water inlet (7) of a main filter (1) through a first three-way valve (5), and a main water outlet pipe (4) is communicated with a pipeline of a first water outlet (12) through a second three-way valve (6);
step two, identifying whether impurities in the sand receiving pipe (30) reach a specified position through a camera (33) on the sand receiving pipe (30), if so, controlling a first three-way valve (5) to enable a total water inlet pipe (3) to be communicated with a pipeline of a fourth water inlet (11), and controlling a second three-way valve (6) to enable a total water outlet pipe (4) to be communicated with a pipeline of a fourth water outlet (16);
step three, opening a first electromagnetic valve (9), starting a bidirectional peristaltic pump (14) to enable water flow to flow from a third water outlet (15) to a second water outlet (13) so as to flush a filter screen of a main filter (1), closing the bidirectional peristaltic pump (14) and the first electromagnetic valve (9) when a camera (33) recognizes that sundries in a sand receiving pipe (30) are not increased any more, opening a second electromagnetic valve (31) to discharge the sundries into a collecting barrel (32), and closing the second electromagnetic valve (31) after the camera (33) detects that the sundries are discharged;
after the time is set at intervals, the total water inlet pipe (3) is communicated with a pipeline of a first water inlet (7) of the main filter (1) through a first three-way valve (5), and the total water outlet pipe (4) is communicated with a pipeline of a first water outlet (12) through a second three-way valve (6); the first electromagnetic valve (9) is opened, the bidirectional peristaltic pump (14) is started, water flows from the second water outlet (13) to the third water outlet (15), the filter screen of the auxiliary filter (2) is washed, water in the auxiliary filter (2) flows into the main filter (1) through the second water inlet (8), impurities further flow into the sand receiving pipe (30), after a set time interval, the bidirectional peristaltic pump (14) and the first electromagnetic valve (9) are closed, a self-cleaning process is completed, and the steps are repeated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310295606.1A CN115999238B (en) | 2023-03-24 | 2023-03-24 | Water circulation filtering device and method of geothermal energy system |
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| CN202310295606.1A CN115999238B (en) | 2023-03-24 | 2023-03-24 | Water circulation filtering device and method of geothermal energy system |
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| CN115999238B true CN115999238B (en) | 2023-06-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2355770Y (en) * | 1998-11-27 | 1999-12-29 | 武汉水利电力大学 | Scrapper type filter |
| CN107715545A (en) * | 2017-11-09 | 2018-02-23 | 农业部南京农业机械化研究所 | A kind of dual cleaning well strainer |
| CN111420447A (en) * | 2020-04-28 | 2020-07-17 | 辽宁生态工程职业学院 | Automatic back flush irrigation filter equipment |
| CN212417375U (en) * | 2020-05-07 | 2021-01-29 | 河南黄河旋风股份有限公司 | Spraying device with shaftless cleaner |
| CN113730992B (en) * | 2021-09-26 | 2022-04-15 | 中国农业科学院农业环境与可持续发展研究所 | Automatic washing device for net filter of biogas slurry drip irrigation system and application of automatic washing device |
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2023
- 2023-03-24 CN CN202310295606.1A patent/CN115999238B/en active Active
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