CN113775573B - Improved integrated intelligent pump station - Google Patents
Improved integrated intelligent pump station Download PDFInfo
- Publication number
- CN113775573B CN113775573B CN202111146111.XA CN202111146111A CN113775573B CN 113775573 B CN113775573 B CN 113775573B CN 202111146111 A CN202111146111 A CN 202111146111A CN 113775573 B CN113775573 B CN 113775573B
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- Prior art keywords
- sealing
- pipe
- rotary drum
- pump station
- chamber
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 238000001914 filtration Methods 0.000 claims abstract description 31
- 238000011010 flushing procedure Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 130
- 239000004519 grease Substances 0.000 claims description 10
- 238000002788 crimping Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 description 11
- 238000003973 irrigation Methods 0.000 description 6
- 230000002262 irrigation Effects 0.000 description 6
- 230000004308 accommodation Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Filtration Of Liquid (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses an improved integrated intelligent pump station, which comprises a shell, a fixed cylinder and a rotary drum, wherein a sealed outer annular cavity is formed between the fixed cylinder and the shell, a sealed inner annular cavity is formed between the fixed cylinder and the rotary drum, the rotary drum is rotationally connected with a shell, the rotary drum is driven by a speed reducing motor, a water outlet pipe is communicated with the interior of the rotary drum, a first cavity and a second cavity are separated from each other in the outer annular cavity, and an outer filter screen is arranged on the wall of the fixed cylinder corresponding to the first cavity and the second cavity; the inner annular cavity is internally divided into a third cavity and a fourth cavity, an inner filter screen is arranged on the rotary drum, the first cavity is connected with a first shunt pipe and a first drain pipe, and the second cavity is connected with a second shunt pipe and a second drain pipe. The pump station can perform back flushing work simultaneously in the filtering process, and can start the back flushing mode without closing the filtering mode, so that the filtering efficiency is high; and the back flushing mode can be automatically started according to the pressure difference of water inlet and outlet of the pump station, so that the intelligent pump station is more intelligent.
Description
Technical Field
The invention relates to a pump station, in particular to an improved integrated intelligent pump station.
Background
The pump station is a device capable of providing hydraulic power and pneumatic power with certain pressure and flow, and the pump station engineering is the general name of the buildings such as water inlet, water outlet, pump house and the like of the drainage and irrigation pump station.
Irrigation pump stations are commonly used for irrigating fields, which pump water from reservoirs, filter the water, and finally drain the filtered water into the field. The filtering function of the existing irrigation pumping station is realized through a back flushing filtering device, a filter screen is arranged in the back flushing filtering device, and impurities in water are filtered and intercepted by the filter screen in the process of passing through the back flushing filtering device. After the pump station runs for a long time, the filter screen can be blocked by impurities, and the filter screen needs to be switched to a back flushing function to flush out the impurities on the filter screen.
The existing pump station can not be started simultaneously in the filtration mode and the back flushing mode, the filtration mode is closed when the back flushing mode is started, and filtration irrigation can be started again only after the back flushing is finished. Because the back flushing takes a certain time, the filtration and irrigation cannot be performed normally in the certain time, and the filtration efficiency of the pump station, namely the irrigation efficiency, is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an improved integrated intelligent pump station which can simultaneously start a filtering function and a backwashing function and has higher filtering efficiency.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides an improved integrated intelligent pump station, includes base, centrifugal pump, back flush filter equipment, inlet tube and outlet pipe, and the water inlet of centrifugal pump passes through the pipeline and connects the water source, and the water outlet of centrifugal pump passes through the water inlet of inlet tube connection back flush filter equipment, and the outlet pipe is connected to back flush filter equipment's water outlet, characterized by: the back flushing filtering device comprises a cylindrical shell, a fixed cylinder is arranged in the shell, a rotary drum is coaxially arranged in the fixed cylinder, a distance exists between the outer wall of the fixed cylinder and the inner wall of a shell, a distance exists between the inner wall of the fixed cylinder and the outer wall of the rotary drum, the top and the bottom of the fixed cylinder are both openings, an annular upper sealing cover and an annular lower sealing cover are respectively arranged in the shell and positioned at the top and the bottom of the fixed cylinder, the upper sealing cover and the lower sealing cover are uniformly closely connected with the fixed cylinder, so that a sealed outer annular cavity is formed between the fixed cylinder and the shell, the inner side surfaces of the upper sealing cover and the lower sealing cover are closely contacted with the outer wall of the rotary drum and can allow the rotary drum to rotate, a sealed inner annular cavity is formed between the fixed cylinder and the rotary drum, the top of the rotary drum is rotationally connected with the top of the shell, a rotating shaft of the speed reducing motor is coaxially fixed with the top of the rotary drum, the bottom of the rotary drum is rotationally connected with the bottom of the shell, the water outlet pipe is communicated with the inside of the rotary drum, three groups of outer sealing plates are arranged between the fixed cylinder and the shell, so that a first strip-shaped outer sealing plate and a second strip-shaped cavity are correspondingly arranged in the first strip-shaped outer cavity and a second strip-shaped cavity; the inner sealing plate is in sealing connection with an upper sealing cover, a lower sealing cover and the fixed cylinder, a flexible sealing strip is arranged on one surface of the inner sealing plate, which is in contact with the rotary cylinder, and is in pressure connection with the outer wall of the rotary cylinder, and the rotary cylinder is allowed to rotate, the first chamber and the third chamber are positioned in the same sector, the second chamber and the fourth chamber are positioned in the same sector, an inner filter screen is arranged on the cylinder wall of the rotary cylinder, the round angle corresponding to the area covered by the inner filter screen is smaller than the central angle of the coverage area of the third chamber and the fourth chamber, the first chamber is connected with a first shunt pipe, the first shunt pipe is connected with a water inlet pipe, and a first electromagnetic valve and a first water pressure sensor are arranged on the first shunt pipe; the second chamber is connected with a second shunt tube, the second shunt tube is connected with a water inlet pipe, and a second electromagnetic valve and a second water pressure sensor are arranged on the second shunt tube; the first chamber is also connected with a first blow-down pipe, and a third electromagnetic valve is arranged on the first blow-down pipe; the second chamber is also connected with a second drain pipe, a fourth electromagnetic valve is arranged on the second drain pipe, and a third water pressure sensor is arranged on the water outlet pipe; the pump station further comprises a controller, the controller comprises a main control module, a first motor driving module, a second motor driving module and a relay module, wherein the first motor driving module, the second motor driving module and the relay module are connected with the main control module, the first motor driving module is connected with the centrifugal pump and is used for driving the centrifugal pump, the second motor driving module is connected with the gear motor and is used for driving the gear motor, the relay module comprises a plurality of relay units, each relay unit is connected with each electromagnetic valve one by one and is used for controlling the action of the electromagnetic valve, and the first water pressure sensor, the second water pressure sensor and the third water pressure sensor are all connected with the sampling signal input end of the main control module.
As a preferable scheme: the sealing plate is of a hollow structure, a hydraulic cavity is arranged in the sealing plate, a piston is arranged in the hydraulic cavity, a limiting block is fixed in the inner sealing plate and positioned in front of the piston, a push plate is fixed at the front part of the piston, and the sealing strip is fixed at the front part of the push plate; the top of the inner sealing plate is provided with a connecting nozzle which is communicated with the hydraulic cavity, the connecting nozzle is connected with a hydraulic pipe through a hydraulic branch pipe, and a fifth electromagnetic valve is arranged on the hydraulic pipe; the pump station further comprises a hydraulic pump, the hydraulic pipe is connected with the hydraulic pump, the controller further comprises a third motor driving module, the third motor driving module is connected with the main control module, the hydraulic pump is connected with and controlled by the third motor driving module, and the fifth electromagnetic valve is connected with and controlled by the relay module.
As a preferable scheme: the cross section shape of the sealing strip is crescent.
As a preferable scheme: and crimping strips are integrally formed on two sides of the sealing strip.
As a preferable scheme: the inside of the crimping strip is of a hollow structure.
As a preferable scheme: the inner sealing plate is internally provided with a strip-shaped guide rail, the guide rail is arranged along the front-back direction of the inner sealing plate, the side part of the piston is provided with a sliding groove, and the guide rail enters the sliding groove and is in sliding fit with the sliding groove.
As a preferable scheme: the sealing device comprises an upper sealing cover and a lower sealing cover, wherein the inner walls of the upper sealing cover and the lower sealing cover are provided with annular concave accommodating grooves, the outer wall of the rotary drum is provided with annular sealing rings, the sealing rings are connected with the rotary drum in a sealing mode, the sealing rings extend into the accommodating grooves, annular sealing gaskets are fixed on the top surfaces and the bottom surfaces of the accommodating grooves, the sealing gaskets are in sliding compression joint with the sealing rings, sealing grease is further filled in the accommodating grooves, and blocking materials are filled in front of the sealing grease.
As a preferable scheme: the shell is internally provided with an angle sensor, a rotating shaft of the angle sensor is in transmission connection with the rotary drum, and the angle sensor is connected with the main control module.
As a preferable scheme: the thickness of the inner filter screen is smaller than that of the drum wall of the drum, and a plurality of through holes are formed in the drum wall of the drum and in front of the coverage area of the inner filter screen.
As a preferable scheme: the water inlet pipe is provided with an automatic air inlet and outlet valve.
Compared with the prior art, the invention has the advantages that: the pump station can perform back flushing work simultaneously in the filtering process, and can start the back flushing mode without closing the filtering mode, so that the filtering efficiency is high; and the back flushing mode can be automatically started according to the pressure difference of water inlet and outlet of the pump station, so that the intelligent pump station is more intelligent.
Drawings
FIG. 1 is a schematic view of the external structure of a pump station in the present embodiment;
FIG. 2 is a longitudinal cross-sectional view of the backwash filter device of this embodiment;
fig. 3 is an enlarged view of a portion a in fig. 2;
fig. 4 is an enlarged view of a portion B in fig. 3;
fig. 5 is an enlarged view of a portion C in fig. 3;
fig. 6 is an enlarged view of a portion D in fig. 2;
FIG. 7 is a transverse cross-sectional view of the backwash filter device of this embodiment;
FIG. 8 is a transverse cross-sectional view of the inner seal plate in this embodiment;
fig. 9 is a schematic circuit diagram in the present embodiment.
Reference numerals illustrate 1, a base; 2. a centrifugal pump; 3. a speed reducing motor; 4. back flushing the filtering device; 401. a housing; 402. a fixed cylinder; 403. a rotating drum; 404. an upper sealing cover; 405. a lower sealing cover; 406. an upper positioning cylinder; 407. an upper connecting cylinder; 408. a lower positioning cylinder; 409. a lower connecting cylinder; 410. a bearing; 411. a lower seal ring; 412. an inner sealing plate; 413. an outer sealing plate; 414. a receiving groove; 415. a sealing ring; 416. a sealing gasket; 417. blocking; 418. sealing grease; 419. a connecting nozzle; 420. a first chamber; 421. a second chamber; 422. a third chamber; 423. a fourth chamber; 424. an outer filter screen; 425. a through hole; 426. an inner filter screen; 427. a hydraulic chamber; 428. a piston; 429. a guide rail; 430. a chute; 431. a limiting block; 432. a push plate; 433. a sealing strip; 434. a crimping strip; 435. a toothed ring; 436. a gear; 437. an angle sensor; 438. an upper seal ring; 5. a hydraulic pump; 6. a control cabinet; 7. a water inlet pipe; 8. a water outlet pipe; 9. a first shunt; 10. a first water pressure sensor; 11. a first electromagnetic valve; 12. a second shunt tube; 13. a second water pressure sensor; 14. a second electromagnetic valve; 15. a first drain pipe; 16. a third electromagnetic valve; 17. a second drain pipe; 18. a fourth electromagnetic valve; 19. a hydraulic branch pipe; 20. a hydraulic pipe; 21. a fifth electromagnetic valve; 22. an automatic air inlet and outlet valve; 23. and a third water pressure sensor.
Detailed Description
Referring to fig. 1, an improved integrated intelligent pump station comprises a base 1, a centrifugal pump 2, a back flushing filtering device 4, a water inlet pipe 7 and a water outlet pipe 8, wherein a water inlet of the centrifugal pump 2 is connected with a water source through a pipeline, a water outlet of the centrifugal pump 2 is connected with a water inlet of the back flushing filtering device 4 through the water inlet pipe 7, and a water outlet of the back flushing filtering device 4 is connected with the water outlet pipe 8.
Referring to fig. 2, backwash filter device 4 includes a cylindrical housing 401, a fixed cylinder 402 is provided in housing 401, and a rotary cylinder 403 is coaxially provided in fixed cylinder 402. There is a distance between the outer wall of the stationary drum 402 and the inner wall of the housing, and a distance between the inner wall of the stationary drum 402 and the outer wall of the drum 403. The top and the bottom of the fixed cylinder 402 are both openings, an annular upper sealing cover 404 and an annular lower sealing cover 405 are respectively arranged in the shell and positioned at the top and the bottom of the fixed cylinder 402, and the upper sealing cover 404 and the lower sealing cover 405 are uniformly closely connected with the shell 401 and the fixed cylinder 402, so that a sealed outer annular cavity is formed between the fixed cylinder 402 and the shell 401; the inner sides of the upper and lower seal covers 404, 405 are in intimate contact with the outer wall of the bowl 403 and are capable of allowing the bowl 403 to rotate, thereby forming a sealed inner annular chamber between the stationary bowl 402 and the bowl 403.
Referring to fig. 2 and 5, an opening is provided at the top of the housing 401, an upper positioning cylinder 406 is provided at the top opening, an upper connecting cylinder 407 is coaxially fixed at the top of the drum 403, the upper connecting cylinder 407 is inserted into the upper positioning cylinder 406 and freely rotatable, and an upper sealing ring 438 is installed between the inner wall of the upper positioning cylinder 406 and the outer wall of the upper connecting cylinder 407. A gear motor 3 is installed at the top of the housing 401, and a rotating shaft of the gear motor 3 is coaxially fixed with the top of the drum 403. Referring to fig. 2 and 4, an opening is provided at the bottom of the housing 401, and a lower positioning cylinder 408 is provided at the top opening, a water outlet is provided at the center of the bottom of the drum 403, and a lower connecting cylinder 409 is coaxially fixed at the water outlet, the lower connecting cylinder 409 is inserted into the lower positioning cylinder 408 and freely rotatable, and a bearing 410 is installed between the bottom of the drum 403 and the bottom of the housing 401.
The water inlet end of the water outlet pipe 8 is closely connected with the lower positioning cylinder 408, and a lower sealing ring 411 is arranged between the outer wall of the lower connecting cylinder 409 and the inner wall of the lower positioning cylinder 408. The lower seal ring 411 can prevent the bearing 410 from contacting water, prevent the bearing 410 from rusting, and effectively protect the bearing 410.
Referring to fig. 7, three sets of strip-shaped outer sealing plates 413 are arranged between the fixed cylinder 402 and the outer shell 401, the outer sealing plates 413 are arranged along the height direction of the shell, the outer sealing plates 413 are divided into an arc-shaped first chamber 420 and a second chamber 421 in an outer annular cavity, and an outer filter screen 424 is arranged on the cylinder wall of the fixed cylinder 402 at the position corresponding to the first chamber 420 and the second chamber 421; three groups of strip-shaped inner sealing plates 412 are arranged between the fixed cylinder 402 and the rotary cylinder 403, the inner sealing plates 412 are arranged along the height direction of the shell, the inner sealing plates 412 are divided into an arc-shaped third chamber 422 and a fourth chamber 423 in the inner annular cavity, the inner sealing plates 412 are in sealing connection with the upper sealing cover 404, the lower sealing cover 405 and the fixed cylinder 402, a flexible sealing strip 433 is arranged on the surface, which is contacted with the rotary cylinder 403, of the inner sealing plates 412, the sealing strip 433 is in pressure connection with the outer wall of the rotary cylinder 403, and the rotary cylinder 403 is allowed to rotate.
The first chamber 420 is located within the same sector as the third chamber 422, and the second chamber 421 and the fourth chamber 423 are located within the same sector. An inner filter screen 426 is disposed on the wall of the drum 403, the circular angle corresponding to the area covered by the inner filter screen 426 is smaller than the circular angle of the area covered by the third chamber 422, and the circular angle corresponding to the area covered by the inner filter screen 426 is smaller than the circular angle of the area covered by the fourth chamber 423. As the bowl 403 rotates, the inner filter screen 426 may move between the third chamber 422 and the fourth chamber 423.
The first chamber 420 is connected with a first shunt tube 9, the first shunt tube 9 is connected with the water inlet pipe 7, and a first electromagnetic valve 11 and a first water pressure sensor 10 are arranged on the first shunt tube 9; the second chamber 421 is connected with a second shunt tube 12, the second shunt tube 12 is connected with the water inlet tube 7, and a second electromagnetic valve 14 and a second water pressure sensor 13 are arranged on the second shunt tube 12; the first chamber 420 is also connected with a first blow-down pipe 15, and a third electromagnetic valve 16 is arranged on the first blow-down pipe 15; the second chamber 421 is also connected to a second drain 17, and the second drain 17 is provided with a fourth solenoid valve 18.
Referring to fig. 2, a third water pressure sensor 23 is installed at the water outlet pipe 8.
Referring to fig. 9, the pump station further includes a controller including a main control module, and further including a first motor driving module, a second motor driving module and a relay module connected with the main control module, the first motor driving module being connected with the centrifugal pump 2 and being used for driving the centrifugal pump 2, the second motor driving module being connected with the gear motor 3 and being used for driving the gear motor 3, the relay module including a plurality of relay units, each relay unit being connected with each solenoid valve one by one and being used for controlling the action of the solenoid valve, the first water pressure sensor 10, the second water pressure sensor 13 and the third water pressure sensor 23 being connected with the sampling signal input end of the main control module.
In the initial state, the inner filter screen 426 on the bowl 403 is positioned in the third chamber 422, where the pump station has the maximum filtration flow; and the first electromagnetic valve 11 is in a conducting state, and other electromagnetic valves are in a closing state.
The working principle of the pump station is as follows: after the pump station is connected with a working power supply, the controller and the sensor are powered on. After the pump station is started, the controller sends a control signal to the first motor driving module, the first motor driving module drives the centrifugal pump 2 to start to operate, at the moment, the centrifugal pump 2 pumps an external water pipe, water flows into the water inlet pipe 7 after passing through the centrifugal pump 2 and flows into the first chamber 420 through the first shunt pipe 9, water flows into the third chamber 422 after passing through the outer filter screen 424, water then enters the rotary drum 403 through the inner filter screen 426, finally flows into the water outlet pipe 8 from an opening at the lower part of the rotary drum 403, and finally the water is discharged by the water outlet pipe 8. In the process, the water is subjected to two-stage filtration through the outer filter screen 424 and the inner filter screen 426, so that impurities in the discharged water can be effectively filtered, a good purifying effect is achieved, and the sewage is changed into clear water.
In the whole filtering process, the first water pressure sensor 10 collects the water pressure in the first shunt pipe 9 and feeds back a water inlet water pressure signal to the main control module; meanwhile, the third water pressure sensor 23 collects the water pressure in the water outlet pipe 8 and feeds back a water outlet water pressure signal to the main control module. During the filtration process, some impurities may adhere to the outer filter screen 424 and the inner filter screen 426, resulting in an increasing pressure difference between the inlet water pressure and the outlet water pressure. When the differential pressure reaches a preset value, the controller sends a control signal to the second motor driving module, the second motor driving module drives the gear motor 3 to rotate clockwise (taking fig. 7 as a reference) by a certain angle, the rotary drum 403 rotates synchronously by the same angle, at this time, a part of area of the inner filter screen 426 on the rotary drum 403 is positioned in the third chamber 422, other areas of the inner filter screen 426 enter the fourth chamber 423, then the controller controls the fourth electromagnetic valve 18 to be conducted, at this time, part of water in the rotary drum 403 enters the fourth chamber 423 through the inner filter screen 426, and enters the second chamber 421 through the outer filter screen 424. In this process, as the inner filter 426 in the fourth chamber 423 and the outer filter 424 in the second chamber 421 are backwashed, the inner impurities are washed away, and finally the sewage mixed with the impurities is discharged through the second sewage discharge pipe 17.
After a period of time, the controller controls the first electromagnetic valve 11 and the fourth electromagnetic valve 18 to be closed, simultaneously controls the second electromagnetic valve 14 and the fourth electromagnetic valve 18 to be conducted, and the second water pressure sensor 13 starts to detect the inlet water pressure in the second shunt tube 12 and feeds back a water pressure signal to the controller. At this time, the water of the water inlet pipe 7 flows into the second chamber 421 through the second shunt pipe 12, then flows into the fourth chamber 423 through the outer filter screen 424 in the second chamber 421, then flows into the drum 403 through the partial area of the inner filter screen 426 in the fourth chamber 423, and finally is discharged from the water outlet pipe 8. In this process, part of the water in the drum 403 flows into the third chamber 422 through the partial region of the inner filter screen 426 in the third chamber 422, flows into the first chamber 420 through the outer filter screen 424 in the first chamber 420, thereby back flushing the inner filter screen 426 in the second chamber 421 and the outer filter screen 424 in the first chamber 420, flushing away the inner impurities, and finally discharging the sewage mixed with the impurities through the first drain pipe 15. Thus, the back flushing of the whole inner filter screen 426 and all the outer filter screens 424 is completed, and the impurities accumulated in the back flushing filter device 4 can be discharged. In this step, the controller controls the gear motor 3 to synchronously drive the drum 403 to rotate slowly counterclockwise, that is, to rotate slowly while flushing, so that not only is the impurity effectively flushed, but also the effective filtering flow can gradually meet the flow required by the current working condition.
When the inner filter screen 426 is fully within the fourth chamber 423, the backwash is completed. At this point the controller controls the third solenoid valve 16 to close and the water in the bowl 403 is now all drained through the outlet pipe 8.
The next backwash, drum 403 is rotated counterclockwise until inner filter screen 426 is fully inserted into third chamber 422, and the entire process is not repeated!
The pump station can perform back flushing work simultaneously in the filtering process, and can start the back flushing mode without closing the filtering mode, so that the filtering efficiency is high; and the back flushing mode can be automatically started according to the pressure difference of water inlet and outlet of the pump station, so that the intelligent pump station is more intelligent.
Referring to fig. 7 and 8, in the present embodiment, the inner sealing plate 412 has a hollow structure, a hydraulic chamber 427 is provided therein, a piston 428 is provided in the hydraulic chamber 427, a stopper 431 is fixed in the inner sealing plate 412 and in front of the piston 428, and the stopper 431 can prevent the piston 428 from being separated from the inner sealing plate 412 when sliding. A push plate 432 is fixed at the front part of the piston 428, and a sealing strip 433 is fixed at the front part of the push plate 432; the top of the inner sealing plate 412 is provided with a connecting nozzle 419, the connecting nozzle 419 is communicated with the hydraulic cavity 427, the connecting nozzle 419 is connected with the hydraulic pipe 20 through the hydraulic branch pipe 19, and the hydraulic pipe 20 is provided with a fifth electromagnetic valve 21. Referring to fig. 1, the pump station further comprises a hydraulic pump 5, and a hydraulic pipe 20 is connected to the hydraulic pump 5. Referring to fig. 9, the controller further includes a third motor driving module connected with the main control module, the hydraulic pump 5 is connected with and controlled by the third motor driving module, and the fifth solenoid valve 21 is connected with and controlled by the relay module.
Hydraulic oil can be injected into or extracted from the hydraulic chamber 427 by controlling the hydraulic pump 5, thereby driving the push plate 432 to move forward and backward. When the push plate 432 moves forward, the sealing strip 433 contacts with the outer wall of the drum 403 and is deformed by extrusion, so that the sealing strip 433 has better fit and compression with the outer wall of the drum 403, thereby ensuring the tightness between the inner sealing plate 412 and the drum 403. When it is desired to rotate the drum 403, the controller controls the fifth solenoid valve 21 to open and controls the hydraulic pump 5 to draw a small amount of hydraulic oil from the hydraulic chamber 427, and then controls the fifth solenoid valve 21 to close and controls the hydraulic pump 5 to stop. To reduce the pressure of the sealing strip 433 against the drum 403 and reduce the resistance to rotation of the drum 403 while ensuring a certain tightness. After the drum 403 is rotated, the controller controls the fifth solenoid valve 21 to open and controls the hydraulic pump 5 to start, and the hydraulic chamber 427 is filled with hydraulic oil until the push plate 432 is restored to the original position, and then controls the fifth solenoid valve 21 to close and controls the hydraulic pump 5 to stop.
As shown in fig. 8, in this embodiment, the cross-sectional shape of the sealing strip 433 is a crescent shape, so that the sealing strip 433 has a larger deformation space, improved sealing performance, and better elastic recovery. On this basis, crimping strips 434 are integrally formed on both sides of the sealing strip 433. The addition of crimp strips 434 may further improve the seal between the seal 433 and the drum 403. The inside of the crimp strip 434 is hollow so that the crimp strip 434 has better deformability and elastic recovery.
To ensure that the piston 428 slides in both forward and rearward directions, in this embodiment, a bar-shaped rail 429 is also provided in the inner seal plate 412, the rail 429 being provided in the forward and rearward direction of the inner seal plate 412, and a chute 430 being provided in the side of the piston 428, the rail 429 entering the chute 430 and being in sliding engagement with the chute 430.
Referring to fig. 2 and 3, in this embodiment, an annular concave accommodation groove 414 is provided on the inner walls of the upper seal cover 404 and the lower seal cover 405, an annular sealing ring 415 is provided on the outer wall of the drum 403, the sealing ring 415 is in sealing connection with the drum 403, the sealing ring 415 extends into the accommodation groove 414, annular sealing gaskets 416 are fixed on the top surface and the bottom surface of the accommodation groove 414, and the sealing gaskets 416 are in sliding compression joint with the sealing ring 415, so that the gap between the sealing gaskets 416 and the sealing ring 415 is small, water entering the accommodation groove 414 is reduced as much as possible, and normal rotation of the sealing ring 415 can be ensured. Sealing grease 418 is also injected into the accommodating groove 414, and a plugging material 417 is filled in front of the sealing grease 418. The sealing grease 418 can isolate water, so that the tightness between the sealing ring 415 and the containing groove 414 is ensured, and the blocking material 417 can limit the movement of the sealing grease 418, so as to avoid the loss of the sealing grease 418.
Referring to fig. 2 and 5, in the present embodiment, an angle sensor 437 is also mounted in the housing. A toothed ring 435 is coaxially fixed to the outer wall of the upper connecting cylinder 407, and a gear 436 is coaxially fixed to the rotation shaft of the angle sensor 437, the gear 436 meshing with the toothed ring 435. Referring to fig. 9, an angle sensor 437 is connected to the main control module. When the drum 403 rotates, the toothed ring 435 is driven to rotate, and the toothed ring 435 drives the gear 436 to rotate, so that the rotating shaft of the angle sensor 437 can be driven to rotate, thereby realizing detection of the angular position of the drum 403.
When the pump station is in operation, the angle sensor 437 detects the real-time angle of the rotary drum 403 and feeds back an angle signal to the main control module; when flushing is performed, the main control module controls the gear motor 3 according to the angle value, so that more accurate adjustment of the angle of the rotary drum 403 is realized.
Referring to fig. 2 and 6, the thickness of the inner filter screen 426 in this embodiment is less than the thickness of the wall of the drum 403. A plurality of through holes 425 are provided in the wall of the drum 403 in front of the coverage area of the inner filter screen 426. Compared with the fully hollowed-out net structure, the outer wall of the rotary cylinder 403 with the through holes 425 can enable the crimping tightness to be better when the sealing strip 433 presses the rotary cylinder 403.
Referring to fig. 7, in this embodiment, an automatic intake and exhaust valve 22 is also provided on the intake pipe 7. During operation of the pump station, when the water pressure in the water inlet pipe 7 is too high or too low, the automatic air inlet and outlet valve 22 can automatically exhaust and inlet air, so that the water pressure in the water inlet pipe 7 is balanced.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (10)
1. The utility model provides an improved integrated intelligent pump station, includes base, centrifugal pump, back flush filter equipment, inlet tube and outlet pipe, and the water inlet of centrifugal pump passes through the pipeline and connects the water source, and the water outlet of centrifugal pump passes through the water inlet of inlet tube connection back flush filter equipment, and the outlet pipe is connected to back flush filter equipment's water outlet, characterized by: the back flushing filtering device comprises a cylindrical shell, a fixed cylinder is arranged in the shell, a rotary drum is coaxially arranged in the fixed cylinder, a distance exists between the outer wall of the fixed cylinder and the inner wall of a shell, a distance exists between the inner wall of the fixed cylinder and the outer wall of the rotary drum, the top and the bottom of the fixed cylinder are both openings, an annular upper sealing cover and an annular lower sealing cover are respectively arranged in the shell and positioned at the top and the bottom of the fixed cylinder, the upper sealing cover and the lower sealing cover are closely connected with the shell and the fixed cylinder, so that a sealed outer annular cavity is formed between the fixed cylinder and the shell, the inner side surfaces of the upper sealing cover and the lower sealing cover are closely contacted with the outer wall of the rotary drum and can allow the rotary drum to rotate, a sealed inner annular cavity is formed between the fixed cylinder and the rotary drum, the top of the rotary drum is rotationally connected with the top of the shell, a rotating shaft of the speed reducing motor is coaxially fixed with the top of the rotary drum, the bottom of the rotary drum is rotationally connected with the bottom of the shell, the water outlet pipe is communicated with the inside of the rotary drum, three groups of outer sealing plates are arranged between the fixed cylinder and the shell, so that a first strip-shaped filter screen and a second strip-shaped cavity are correspondingly arranged in the first strip-shaped cavity and a second strip-shaped cavity; the inner sealing plate is in sealing connection with an upper sealing cover, a lower sealing cover and the fixed cylinder, a flexible sealing strip is arranged on one surface of the inner sealing plate, which is in contact with the rotary cylinder, and is in pressure connection with the outer wall of the rotary cylinder, and the rotary cylinder is allowed to rotate, the first chamber and the third chamber are positioned in the same sector, the second chamber and the fourth chamber are positioned in the same sector, an inner filter screen is arranged on the cylinder wall of the rotary cylinder, the round angle corresponding to the area covered by the inner filter screen is smaller than the central angle of the coverage area of the third chamber and the fourth chamber, the first chamber is connected with a first shunt pipe, the first shunt pipe is connected with a water inlet pipe, and a first electromagnetic valve and a first water pressure sensor are arranged on the first shunt pipe; the second chamber is connected with a second shunt tube, the second shunt tube is connected with a water inlet pipe, and a second electromagnetic valve and a second water pressure sensor are arranged on the second shunt tube; the first chamber is also connected with a first blow-down pipe, and a third electromagnetic valve is arranged on the first blow-down pipe; the second chamber is also connected with a second drain pipe, a fourth electromagnetic valve is arranged on the second drain pipe, and a third water pressure sensor is arranged on the water outlet pipe; the pump station further comprises a controller, the controller comprises a main control module, a first motor driving module, a second motor driving module and a relay module, wherein the first motor driving module, the second motor driving module and the relay module are connected with the main control module, the first motor driving module is connected with the centrifugal pump and is used for driving the centrifugal pump, the second motor driving module is connected with the gear motor and is used for driving the gear motor, the relay module comprises a plurality of relay units, each relay unit is connected with each electromagnetic valve one by one and is used for controlling the action of the electromagnetic valve, and the first water pressure sensor, the second water pressure sensor and the third water pressure sensor are all connected with the sampling signal input end of the main control module.
2. The improved integrated intelligent pump station according to claim 1, wherein: the sealing plate is of a hollow structure, a hydraulic cavity is arranged in the sealing plate, a piston is arranged in the hydraulic cavity, a limiting block is fixed in the inner sealing plate and positioned in front of the piston, a push plate is fixed at the front part of the piston, and the sealing strip is fixed at the front part of the push plate; the top of the inner sealing plate is provided with a connecting nozzle which is communicated with the hydraulic cavity, the connecting nozzle is connected with a hydraulic pipe through a hydraulic branch pipe, and a fifth electromagnetic valve is arranged on the hydraulic pipe; the pump station further comprises a hydraulic pump, the hydraulic pipe is connected with the hydraulic pump, the controller further comprises a third motor driving module, the third motor driving module is connected with the main control module, the hydraulic pump is connected with and controlled by the third motor driving module, and the fifth electromagnetic valve is connected with and controlled by the relay module.
3. The improved integrated intelligent pump station according to claim 2, characterized by: the cross section shape of the sealing strip is crescent.
4. The improved integrated intelligent pump station according to claim 3, wherein: and crimping strips are integrally formed on two sides of the sealing strip.
5. The improved integrated intelligent pump station according to claim 4, wherein: the inside of the crimping strip is of a hollow structure.
6. The improved integrated intelligent pump station according to claim 2, characterized by: the inner sealing plate is internally provided with a strip-shaped guide rail, the guide rail is arranged along the front-back direction of the inner sealing plate, the side part of the piston is provided with a sliding groove, and the guide rail enters the sliding groove and is in sliding fit with the sliding groove.
7. The improved integrated intelligent pump station according to claim 1, wherein: the sealing device comprises an upper sealing cover and a lower sealing cover, wherein the inner walls of the upper sealing cover and the lower sealing cover are provided with annular concave accommodating grooves, the outer wall of the rotary drum is provided with annular sealing rings, the sealing rings are connected with the rotary drum in a sealing mode, the sealing rings extend into the accommodating grooves, annular sealing gaskets are fixed on the top surfaces and the bottom surfaces of the accommodating grooves, the sealing gaskets are in sliding compression joint with the sealing rings, sealing grease is further filled in the accommodating grooves, and blocking materials are filled in front of the sealing grease.
8. The improved integrated intelligent pump station according to claim 1, wherein: the shell is internally provided with an angle sensor, a rotating shaft of the angle sensor is in transmission connection with the rotary drum, and the angle sensor is connected with the main control module.
9. The improved integrated intelligent pump station according to claim 1, wherein: the thickness of the inner filter screen is smaller than that of the drum wall of the drum, and a plurality of through holes are formed in the drum wall of the drum and in front of the coverage area of the inner filter screen.
10. The improved integrated intelligent pump station according to claim 1, wherein: the water inlet pipe is provided with an automatic air inlet and outlet valve.
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| CN202111146111.XA CN113775573B (en) | 2021-09-28 | 2021-09-28 | Improved integrated intelligent pump station |
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| CN202111146111.XA CN113775573B (en) | 2021-09-28 | 2021-09-28 | Improved integrated intelligent pump station |
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| CN113775573B true CN113775573B (en) | 2023-07-21 |
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| CN115624800A (en) * | 2022-10-27 | 2023-01-20 | 哈尔滨凯纳科技股份有限公司 | Outdoor water supply pump station capable of being remotely monitored |
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| CN101293155A (en) * | 2008-01-14 | 2008-10-29 | 山东科技大学 | On-line automatic backwash filter of recirculated water |
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| CN113775573A (en) | 2021-12-10 |
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