CN115414720B - Lamination filter for adjusting lamination tightness by utilizing motor and control system thereof - Google Patents
Lamination filter for adjusting lamination tightness by utilizing motor and control system thereof Download PDFInfo
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- CN115414720B CN115414720B CN202211040428.XA CN202211040428A CN115414720B CN 115414720 B CN115414720 B CN 115414720B CN 202211040428 A CN202211040428 A CN 202211040428A CN 115414720 B CN115414720 B CN 115414720B
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- 238000003475 lamination Methods 0.000 title claims description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 239000010865 sewage Substances 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 22
- 238000001914 filtration Methods 0.000 abstract description 14
- 238000009776 industrial production Methods 0.000 abstract 1
- 230000002262 irrigation Effects 0.000 description 18
- 238000003973 irrigation Methods 0.000 description 18
- 238000011001 backwashing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000013480 data collection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Classifications
-
- 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
- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
- B01D29/46—Edge filtering elements, i.e. using contiguous impervious surfaces of flat, stacked bodies
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/603—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a laminated filter for adjusting laminated tightness by using a motor, which comprises a water inlet pipe, a tightness adjusting device, a cylinder body, a filter element, a base, a water outlet pipe and a drain pipe, wherein the side surface of the tightness adjusting device is provided with a water inlet and is communicated with the water inlet pipe, and the lower end of the tightness adjusting device is connected with the upper end of the cylinder body through threads; the lower end of the cylinder body is connected with the upper end of the base through threads; the center of the lower end of the base is provided with a water outlet and communicated with a water outlet pipe, and the side surface of the base is provided with a sewage outlet and communicated with a sewage pipe; a filter element is arranged on the upper side of the water outlet of the base; the upper end of the filter element is connected with the tightness adjusting device. The laminated filter adopts the stepping motor to finely adjust the gap rate among the laminated sheets, so that the mesh number of the laminated filter is adjustable, different types of irrigators can be matched, and the two states of filtering and back flushing of the filter are switched by adopting the stepping motor and the speed reducer, so that the control of the filtering and back flushing is more stable and accurate, meanwhile, the laminated filter can be remotely controlled, the industrial production is convenient, and the cost is low.
Description
Technical Field
The invention belongs to the field of water-saving irrigation filter devices, relates to filter equipment, and in particular relates to a laminated filter for adjusting laminated tightness by using a motor and a control system thereof.
Background
Limiting the development of water-saving irrigation technology is that the irrigator is easy to scale or block, and strict filtration treatment of a water source by means of a filter is a recognized effective solution. Among common filters, the lamination filter has good filtering effect and is easy to realize automation.
Chinese patent publication No. CN214551593U discloses a laminated filter, the laminated sheet adopts conical sections with upper and lower openings. The risk of blocking the lamination is reduced during filtration, and the effect that the lamination is mutually separated by a certain distance due to the impact of water flow on the lamination can be achieved during back flushing, so that the back flushing effect is improved. There are the following problems: the effect of the ultrasonic vibration rod for back flushing is unknown; the price of the ultrasonic vibration rod is relatively high; the filter precision of the lamination is single.
Chinese patent publication No. CN211486747U discloses a Y type lamination filter, through set up inlet tube, outlet pipe and last casing respectively on the violently manage, set up down the casing on going up the casing, set up filter equipment between last casing and the lower casing, go up the compact structure of Y type that casing and violently manage to form, so reach the purpose of being convenient for dismantle and maintain filter equipment when reducing whole filtration system occupation space. However, experiments show that water flow directly impacts the lamination, so that the head loss is suddenly increased, and the whole irrigation system is affected.
In summary, the following problems exist in the conventional lamination filter: 1) The filtering precision is single, and most of common lamination filters in the market are 120 meshes; 2) The existing automatic back flushing laminated filter is not serialized enough and has high manufacturing cost; 3) Common low-flow lamination filters do not have a back flushing function; 4) The cavity structure is at most Y, T types for rivers direct-flushing lamination leads to the water head loss to appear suddenly increasing, blocks up inhomogeneous scheduling phenomenon.
Disclosure of Invention
Aiming at the problems and defects in the prior art, the invention aims to provide the laminated filter which uses the motor to adjust the laminated tightness, has adjustable filtering precision, has a back flushing function, is not easy to block, is convenient for series production and has low cost.
The technical scheme adopted for achieving the aim of the invention is as follows: the utility model provides an utilize lamination filter of motor regulation lamination elasticity, includes inlet tube, elasticity adjusting device, barrel, filter core, base, outlet pipe, blow off pipe, elasticity adjusting device's side is equipped with the water inlet and communicates with the inlet tube, and the lower extreme is connected with the upper end of barrel through the screw thread; the lower end of the cylinder body is connected with the upper end of the base through threads; the center of the lower end of the base is provided with a water outlet and communicated with a water outlet pipe, and the side surface of the base is provided with a sewage outlet and communicated with a sewage pipe; a filter element is arranged on the upper side of the water outlet of the base; the upper end of the filter element is connected with the tightness adjusting device.
The tightness adjusting device is composed of a stepping motor, a speed reducer, a coupling rod, a flow divider and a machine seat, wherein the stepping motor and the speed reducer are arranged at the upper end of the machine seat in a matched mode, a power output shaft of the speed reducer is connected with the upper end of the coupling rod, and the lower end of the coupling rod is connected with the upper end of the flow divider.
The filter element consists of a framework, a lamination, a gasket and a spring, wherein the lamination is sleeved on the framework; the lower extreme of skeleton is connected with the base, and the upper end is connected with the lower extreme of shunt, is provided with gasket and spring between the upper end of skeleton and shunt.
The diverter is streamline, and the center of the bottom of the diverter is provided with a screw hole inwards.
The framework consists of a bottom, a supporting rod, a top and a screw, wherein threads are arranged on the bottom; the support rod is hollow, the upper end of the support rod is connected with the top, the lower end of the support rod is connected with the bottom, a plurality of small holes are uniformly distributed on the support rod, and the screw rod is fixed at the top; the lamination is sleeved on the supporting rod; the gasket and the spring are sleeved on the screw rod.
The invention also aims to provide a control system of the laminated filter, which comprises a water inlet pipe, a tightness adjusting device, a cylinder, a filter element, a base, a water outlet pipe, a first pressure transmitter, a second pressure transmitter, a first electromagnetic valve, a water source, a water pump, a flow sensor, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a field irrigation pipe network row, a drain pipe and an intelligent controller PLC.
The side surface of the tightness adjusting device is provided with a water inlet and is communicated with one end of the water inlet pipe, and the lower end of the tightness adjusting device is connected with the upper end of the cylinder body through threads; the lower end of the cylinder body is connected with the upper end of the base through threads; the center of the lower end of the base is provided with a water outlet and is communicated with one end of a water outlet pipe, and the side surface of the base is provided with a sewage outlet and is communicated with a sewage pipe; a filter element is arranged on the upper side of the water outlet of the base; the upper end of the filter element is connected with the tightness adjusting device; the water inlet pipe is sequentially provided with a second electromagnetic valve, a flow sensor and a first pressure transmitter; one end of the water pump is connected with a water source through a water pipe, the water pipe connected with the other end of the water pump is divided into two paths, the first path is communicated with the water inlet pipe, and the second path is communicated with a field irrigation pipe network row; a third electromagnetic valve and a fourth electromagnetic valve are sequentially arranged on the second water pipe; the other end of the water outlet pipe is communicated with a second water pipe, a second pressure transmitter is arranged on the water outlet pipe, and a first electromagnetic valve is arranged on the sewage draining pipe.
The first pressure transmitter, the second pressure transmitter, the first electromagnetic valve, the water source, the water pump, the flow sensor, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are respectively connected with the intelligent controller PLC through wires.
The water outlet pipe is connected to a second water pipe between the third electromagnetic valve and the fourth electromagnetic valve.
The intelligent controller PLC selects LK3U-64, its interface includes two RS485 interfaces, one RS232 interface, switching value input output interface, analog input output interface, is used for data collection, processing and output.
By adopting the technical scheme, when in filtration, impurity-containing water flows in from the inlet of the filter, flows through the flow divider to disperse water flow, uniformly flows to the lamination, and flows out from the outlet after filtration; and monitoring the pressure difference of the inlet and outlet pressure transmitters of the filter in real time, and when the pressure difference reaches a preset pressure difference value, driving the shunt to loosen the spring by the stepping motor to perform back flushing. During back flushing, water flow enters from the water outlet, the high-pressure water flow springs up the gasket pressing spring to enable the lamination to be loosened, jet water washes the lamination, impurity-containing water is discharged from the sewage outlet, the back flushing time is set, and back flushing is stopped.
Compared with the prior art, the invention has the following advantages:
(1) The gap rate between the lamination sheets is finely adjusted by adopting a stepping motor, so that the mesh number of the lamination filter is adjustable, and different types of irrigators can be matched.
(2) The two states of filtering and back flushing of the filter are switched by adopting the stepping motor and the speed reducer, so that the control of the filtering and back flushing is more stable and accurate.
(3) The invention has higher automation degree and can be controlled remotely.
Drawings
FIG. 1 is a schematic view of the construction of a laminated filter of the present invention;
FIG. 2 is a block diagram of a tightness adjustment device of the laminated filter of the present invention;
FIG. 3 is a block diagram of the cartridge framework of the laminated filter of the present invention;
FIG. 4 is a schematic diagram of the control system of the laminated filter of the present invention;
FIG. 5 is a block diagram of a control system for the laminated filter of the present invention;
FIG. 6 is a cross-sectional view of a diverter of the laminated filter of the present invention;
FIG. 7 is a graph of the pulse count versus gap rate for a stepper motor of a laminated filter of the present invention;
Fig. 8 is a flow chart of the operation of the control system of the laminated filter of the present invention.
Reference numerals: 1-inlet pipe, 2-tightness adjusting device, 3-barrel, 4-filter core, 5-base, 6-outlet pipe, 7-first pressure transmitter, 8-second pressure transmitter, 9-first solenoid valve, 10-water source, 11-water pump, 12-flow sensor, 13-second solenoid valve, 14-third solenoid valve, 15-fourth solenoid valve, 16-field irrigation pipe network, 201-stepper motor, 202-reduction gear, 203-connecting rod, 204-shunt, 41-skeleton, 42-lamination, 43-gasket, 44-spring, 411-bottom, 412-bracing piece, 413-top, 414-screw.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the drawings and examples provided by the inventor, and it is apparent that the described examples are only some of the examples of the present invention, but not all of the examples.
Referring to fig. 1-3, the laminated filter for adjusting the laminated tightness by using a motor comprises a water inlet pipe 1, a tightness adjusting device 2, a cylinder 3, a filter element 4, a base 5, a water outlet pipe 6 and a drain pipe, wherein the side surface of the tightness adjusting device 2 is provided with a water inlet and is communicated with the water inlet pipe 1, and the lower end of the tightness adjusting device is connected with the upper end of the cylinder 3 through threads; the lower end of the cylinder body 3 is connected with the upper end of the base 5 through threads; the center of the lower end of the base 5 is provided with a water outlet and is communicated with the water outlet pipe 6, and the side surface of the base is provided with a sewage outlet and is communicated with the sewage outlet pipe; a filter element 4 is arranged on the upper side of the water outlet of the base 5; the upper end of the filter element 4 is connected with the tightness adjusting device 2.
The tightness adjusting device 2 is composed of a stepping motor 201, a speed reducer 202, a connecting rod 203, a flow divider 204 and a pedestal, wherein the stepping motor 201 and the speed reducer 202 are mounted at the upper end of the pedestal in a matched manner, a power output shaft of the speed reducer 202 is connected with the upper end of the connecting rod 203, and the lower end of the connecting rod 203 is connected with the upper end of the flow divider 204.
The filter element 4 consists of a framework 41, a lamination 42, a gasket 43 and a spring 44, wherein the lamination 42 is sleeved on the framework 41; the lower end of the framework 41 is connected with the base 5, the upper end is connected with the lower end of the flow divider 204, and a gasket 43 and a spring 44 are arranged between the upper end of the framework 41 and the flow divider 204.
The diverter 204 is streamlined and has a screw hole in the center of its bottom inwardly.
The framework 41 consists of a bottom 411, a supporting rod 412, a top 413 and a screw 414, wherein the bottom 411 is provided with threads; the supporting rod 412 is hollow, the upper end is connected with the top 413, the lower end is connected with the bottom 411, a plurality of small holes are uniformly distributed on the rod, and the screw 414 is fixed on the top 413; the lamination 42 is sleeved on the support rod 412; the washer 43 and the spring 44 are sleeved on the screw 414.
Referring to fig. 4, a control system of a laminated filter for adjusting laminated tightness by using a motor comprises a water inlet pipe 1, a tightness adjusting device 2, a cylinder 3, a filter element 4, a base 5, a water outlet pipe 6, a first pressure transmitter 7, a second pressure transmitter 8, a first electromagnetic valve 9, a water source 10, a water pump 11, a flow sensor 12, a second electromagnetic valve 13, a third electromagnetic valve 14, a fourth electromagnetic valve 15, a field irrigation pipe network row 16, a drain pipe and an intelligent controller PLC.
The side surface of the tightness adjusting device 2 is provided with a water inlet and is communicated with one end of the water inlet pipe 1, and the lower end of the tightness adjusting device is connected with the upper end of the cylinder 3 through threads; the lower end of the cylinder body 3 is connected with the upper end of the base 5 through threads; the center of the lower end of the base 5 is provided with a water outlet and is communicated with one end of a water outlet pipe 6, and the side surface of the base is provided with a sewage outlet and is communicated with a sewage pipe; a filter element 4 is arranged on the upper side of the water outlet of the base 5; the upper end of the filter element 4 is connected with the tightness adjusting device 2; the water inlet pipe 1 is sequentially provided with a second electromagnetic valve 13, a flow sensor 12 and a first pressure transmitter 7; one end of the water pump 11 is connected with the water source 10 through a water pipe, the water pipe connected with the other end of the water pump is divided into two paths, the first path is communicated with the water inlet pipe 1, and the second path is communicated with the field irrigation pipe network row 16; a third electromagnetic valve 14 and a fourth electromagnetic valve 15 are sequentially arranged on the second water pipe; the other end of the water outlet pipe 6 is communicated with a second water pipe, a second pressure transmitter 8 is installed on the water outlet pipe 6, and a first electromagnetic valve 9 is installed on the sewage draining pipe.
Referring to fig. 5, the first pressure transmitter 7, the second pressure transmitter 8, the first electromagnetic valve 9, the water source 10, the water pump 11, the flow sensor 12, the second electromagnetic valve 13, the third electromagnetic valve 14 and the fourth electromagnetic valve 15 are respectively connected with the intelligent controller PLC through wires.
The water outlet pipe 6 is connected to a second water pipe between the third electromagnetic valve 14 and the fourth electromagnetic valve 15.
The intelligent controller PLC selects LK3U-64, its interface includes two RS485 interfaces, one RS232 interface, switching value input output interface, analog input output interface, is used for data collection, processing and output.
Further, the step motor driver controls the step motor by the pulse number; the speed reducer is used for increasing the power output of the stepping motor and improving the control precision; the intelligent control system controls the stepping motor to drive the diverter to adjust the compression degree of the spring so as to adjust the gap rate between the laminations, so that different types of irrigators can be matched. The gap rate formula is as follows:
Wherein, (L is the total length of gaps between laminations, mm; L 2 is the total length of laminations, mm, the range is 0-7.5%, and the pulse number N p of the stepper motor is in direct proportion to the gap rate epsilon, the relation is as follows:
ε＝k·Np
Further, the tightness of the lamination is adjustable. The function is as follows: firstly, finely adjusting the tightness between the laminations according to the requirements of the tail end irrigator, wherein the intelligent control system controls the stepping motor to drive the diverter to adjust the compression degree of the spring so as to adjust the gap rate between the laminations; secondly, when the pressure difference delta H of the pressure transmitter reaches the backwashing pressure difference delta H, the intelligent control system controls the stepping motor to drive the diverter so that the spring is restored to an original state (namely, the gap rate is maximum), the water flow ejects the gasket through the supporting rod to squeeze the spring, the lamination is loosened to form a gap through which backwashing water flows, and high-speed water flow is ejected out of the lamination through the small hole of the supporting rod to wash the lamination.
Further, the diverter is fixed at the tail end of the connecting rod, and the center of the diverter is provided with threads which are matched with the screw rod; the diverter is arranged in a streamline shape, and has the functions of reducing energy loss generated by direct flushing of water flow and uniformly dispersing the water flow. The section equation is:
4L2·tan2α·x2+4(D2-L2)·y2＝L2·D2·tan2α
wherein D/2 is not less than |x| is not more than (L.tan alpha)/2, - (L.tan alpha)/2 is not more than y is not more than 0,0< alpha <90 degrees, D is the diameter of the link rod, and mm; l is the outer diameter of the laminate, mm.
Further, the base can be used as a sand setting tank; the side wall of drain flushes with the base side wall, is convenient for arrange impurity clean.
The PLC reads the values of the pressure sensor and the flow sensor in real time, compares the values with preset values such as backwash pressure difference H, required irrigation quantity Q Total (S) and the like, and further controls the opening and closing of the electromagnetic valve and the gap rate of the tightness adjusting module, so that the micro-adjustment of the gap rate of the laminated filter in the process of matching the irrigator and the large adjustment of the gap rate of the laminated filter in the process of backwash are realized.
In the filtering state, the second electromagnetic valve 13 and the fourth electromagnetic valve 15 are opened, the first electromagnetic valve 9 and the third electromagnetic valve 14 are closed, the water pump 11 pumps water from the water source 10, flows in from the inlet of the filter through the flow sensor 12 and the first pressure transmitter 7, flows through the flow divider to disperse water flow, uniformly flows to the lamination 42, flows out from the water outlet pipe 6 through the second pressure transmitter 8 and flows to the field irrigation pipe network 16 for irrigation; the differential pressure of the first pressure transmitter 7 and the second pressure transmitter 8 at the inlet and the outlet of the filter is monitored in real time, when a preset differential pressure value is achieved, the second electromagnetic valve 13 and the fourth electromagnetic valve 15 are closed, the first electromagnetic valve 9 and the third electromagnetic valve 14 are opened, the stepping motor drives the shunt to loosen the spring, the water pump 11 pumps water from the water source 10, flows into the filter through the second pressure transmitter 8, the high-pressure water flow bounces up the gasket compression spring to loosen the lamination, the jet water washes the lamination, sewage is discharged from the sewage drain, the backwashing duration is set, and backwashing is stopped.
The diverter 204 is provided in a streamline shape, which has the function of firstly reducing energy loss generated by direct impact of water flow and secondly uniformly dispersing the water flow. The cross-sectional equation is (see fig. 6):
3.17x2-y2＝79.29
Wherein, x is more than or equal to 5 and less than or equal to 37.24, y is more than or equal to 37.24 and less than or equal to 0, alpha=60 degrees, and D=10 mm; l=43 mm.
A32 mm PVC pipe is used for connecting a stepping motor, the diameter of a connecting rod is 10mm, the outer diameter of a lamination is 43mm, the total thickness is 129.6mm, and the maximum total gap between the laminations is 9.6mm for testing. The obtained actual measurement values were fitted (see fig. 7), and the relation is as follows (R 2 =0.998):
ε＝8.2E-5Np
Five gap rates were selected for the muddy water test. The relationship between the obtained gap ratio and the minimum particle diameter of the filter which can intercept sediment is shown in the following table:
TABLE 1 relationship between the gap ratio and the minimum particle size of the filter that can intercept silt
Referring to fig. 8, a flowchart of the operation of the filtration system is shown as follows:
Step one: setting irrigation flow Q 1, required irrigation quantity Q Total (S) , back flushing pressure difference (H, back flushing time length T), selecting corresponding gap rate epsilon according to a corresponding table 1 of the irrigators at the tail ends, obtaining the pulse number through a formula epsilon=kN p, and controlling a stepping motor to adjust the pulse number by utilizing a PLC.
Step two: irrigation is started, and the irrigation quantity Q i is accumulated.
Step three: the pressure of the pressure transmitters (7, 8) is detected and the actual differential pressure Δh is determined.
Step four: the system determines whether the actual differential pressure Δh is greater than the backwash differential pressure Δh. If the irrigation is not continued, judging; if so, opening back flushing and timing t.
Step five: the system judges whether the flushing time T is longer than the back flushing time T, if not, the back flushing is continued; if the result is reached, the next step of judgment is carried out.
Step six: the system judges whether the accumulated irrigation quantity Q i reaches the required irrigation quantity Q Total (S) or not, and if not, the system continues the circulation from the second step to the sixth step; if so, closing the system.
Claims (1)
1. A lamination filter for adjusting lamination tightness by utilizing a motor is characterized in that: the device comprises a water inlet pipe (1), a tightness adjusting device (2), a cylinder body (3), a filter element (4), a base (5), a water outlet pipe (6), a sewage draining pipe and an intelligent control system, wherein the side surface of the tightness adjusting device (2) is provided with a water inlet and is communicated with the water inlet pipe (1), and the lower end of the tightness adjusting device is connected with the upper end of the cylinder body (3) through threads; the lower end of the cylinder body (3) is connected with the upper end of the base (5) through threads; the center of the lower end of the base (5) is provided with a water outlet and is communicated with a water outlet pipe (6), and the side surface of the base is provided with a sewage outlet and is communicated with a sewage pipe; a filter element (4) is arranged on the water outlet of the base (5); the upper end of the filter element (4) is connected with the tightness adjusting device (2);
The tightness adjusting device (2) consists of a stepping motor (201), a speed reducer (202), a connecting rod lever (203), a shunt (204) and a base, wherein the stepping motor (201) and the speed reducer (202) are arranged at the upper end of the base in a matched mode, a power output shaft of the speed reducer (202) is connected with the upper end of the connecting rod lever (203), and the lower end of the connecting rod lever (203) is connected with the upper end of the shunt (204);
The filter element (4) consists of a framework (41), a lamination (42), a gasket (43) and a spring (44), wherein the lamination (42) is sleeved on the framework (41); the lower end of the framework (41) is connected with the base (5), the upper end of the framework is connected with the lower end of the shunt (204), and a gasket (43) and a spring (44) are arranged between the upper end of the framework (41) and the shunt (204);
The framework (41) consists of a bottom (411), a supporting rod (412), a top (413) and a screw (414), wherein the bottom (411) is provided with threads; the supporting rod (412) is hollow, the upper end of the supporting rod is connected with the top (413), the lower end of the supporting rod is connected with the bottom (411), and a plurality of small holes are uniformly distributed on the supporting rod; the screw (414) is fixed above the top (413); the lamination (42) is sleeved on the supporting rod (412); the gasket (43) and the spring (44) are sleeved on the screw (414), and the gasket (43) is positioned at the lower side of the spring (44);
the diverter (204) is streamline, and a screw hole is formed inwards in the center of the bottom of the diverter;
The upper end of the screw (414) is connected with a screw hole of a shunt (204) of the tightness adjusting device (2);
Wherein the diverter (204) is streamlined in cross-sectional form and has a cross-sectional equation:
wherein, x is more than or equal to 5 and less than or equal to 37.24, y is more than or equal to 37.24 and less than or equal to 0;
Wherein the stepping motor driver controls the stepping motor through the pulse number; the speed reducer is used for increasing the power output of the stepping motor and improving the control precision; the intelligent control system controls the stepping motor to drive the shunt to adjust the compression degree of the spring and then adjust the gap rate between the laminations so as to match different types of irrigators, and the gap rate formula is as follows:
ε=
Wherein: deltaL is the total length of gaps between laminations, mm, is the total length of laminations, mm ranges from 0 to 7.5%, and epsilon is the gap rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211040428.XA CN115414720B (en) | 2022-08-29 | 2022-08-29 | Lamination filter for adjusting lamination tightness by utilizing motor and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211040428.XA CN115414720B (en) | 2022-08-29 | 2022-08-29 | Lamination filter for adjusting lamination tightness by utilizing motor and control system thereof |
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| CN115414720B true CN115414720B (en) | 2024-04-16 |
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| EP0855205B1 (en) * | 1996-12-28 | 2003-04-02 | MAHLE Filtersysteme GmbH | Filter for liquids containing contaminants |
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| WO2011097835A1 (en) * | 2010-02-11 | 2011-08-18 | 广东联塑科技实业有限公司 | Cartridge apparatus of disk-stacked filter |
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| CN203990028U (en) * | 2014-07-22 | 2014-12-10 | 北京东方润泽生态科技股份有限公司 | Laminated filter |
| CN107902782A (en) * | 2017-11-28 | 2018-04-13 | 丁继来 | A kind of turbocharging type automatically cleaning high efficiency particulate air filter |
| CN208485742U (en) * | 2018-05-14 | 2019-02-12 | 天津安巨环保工程有限公司 | A kind of sewage-treatment plant convenient for sampling |
| CN212016863U (en) * | 2019-12-24 | 2020-11-27 | 烟台钰德电镀有限公司 | Electroplating control water purification device |
| CN212680282U (en) * | 2020-06-18 | 2021-03-12 | 浙江启兴智联农业科技有限公司 | Water and fertilizer integrated intelligent filtering backwashing system |
| CN213132176U (en) * | 2020-07-21 | 2021-05-07 | 深圳安吉尔饮水产业集团有限公司 | Laminated filter and water purifying and drinking equipment |
| CN214571116U (en) * | 2021-03-01 | 2021-11-02 | 姚明明 | Sewage treatment device convenient to clearance filter screen board |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0855205B1 (en) * | 1996-12-28 | 2003-04-02 | MAHLE Filtersysteme GmbH | Filter for liquids containing contaminants |
| CN201179375Y (en) * | 2008-02-19 | 2009-01-14 | 杨高利 | Elastic lamination filter with adjustable accuracy |
| WO2011097835A1 (en) * | 2010-02-11 | 2011-08-18 | 广东联塑科技实业有限公司 | Cartridge apparatus of disk-stacked filter |
| CN202315501U (en) * | 2011-11-12 | 2012-07-11 | 新疆天业（集团）有限公司 | External-force type back wash lamination filter |
| CN203990028U (en) * | 2014-07-22 | 2014-12-10 | 北京东方润泽生态科技股份有限公司 | Laminated filter |
| CN107902782A (en) * | 2017-11-28 | 2018-04-13 | 丁继来 | A kind of turbocharging type automatically cleaning high efficiency particulate air filter |
| CN208485742U (en) * | 2018-05-14 | 2019-02-12 | 天津安巨环保工程有限公司 | A kind of sewage-treatment plant convenient for sampling |
| CN212016863U (en) * | 2019-12-24 | 2020-11-27 | 烟台钰德电镀有限公司 | Electroplating control water purification device |
| CN212680282U (en) * | 2020-06-18 | 2021-03-12 | 浙江启兴智联农业科技有限公司 | Water and fertilizer integrated intelligent filtering backwashing system |
| CN213132176U (en) * | 2020-07-21 | 2021-05-07 | 深圳安吉尔饮水产业集团有限公司 | Laminated filter and water purifying and drinking equipment |
| CN214571116U (en) * | 2021-03-01 | 2021-11-02 | 姚明明 | Sewage treatment device convenient to clearance filter screen board |
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|---|---|
| CN115414720A (en) | 2022-12-02 |
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