CN115414720A - Lamination filter for adjusting lamination tightness by using motor and control system thereof - Google Patents
Lamination filter for adjusting lamination tightness by using motor and control system thereof Download PDFInfo
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- CN115414720A CN115414720A CN202211040428.XA CN202211040428A CN115414720A CN 115414720 A CN115414720 A CN 115414720A CN 202211040428 A CN202211040428 A CN 202211040428A CN 115414720 A CN115414720 A CN 115414720A
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- 238000003475 lamination Methods 0.000 title claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 138
- 239000010865 sewage Substances 0.000 claims abstract description 21
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 230000002262 irrigation Effects 0.000 claims description 21
- 238000003973 irrigation Methods 0.000 claims description 21
- 238000011001 backwashing Methods 0.000 abstract description 22
- 238000001914 filtration Methods 0.000 abstract description 16
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 5
- 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
- 238000010586 diagram Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a lamination filter for adjusting the tightness of laminations by using a motor, which comprises a water inlet pipe, a tightness adjusting device, a barrel, 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 barrel through threads; the lower end of the cylinder 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 discharge pipe; a filter element is arranged above the water outlet of the base; the upper end of the filter element is connected with the tightness adjusting device. The lamination filter adopts the stepping motor to finely adjust the gap rate between the laminations, so that the mesh number of the lamination filter is adjustable, the lamination filter can be matched with douches of different types, and the stepping motor and the reducer are adopted to switch the two states of filtering and backwashing of the filter, so that the control of filtering and backwashing is more stable and accurate, and meanwhile, the lamination filter can be remotely controlled, is convenient for industrial production and has low cost.
Description
Technical Field
The invention belongs to the field of water-saving irrigation filtering devices, relates to filtering equipment, and particularly relates to a laminated filter for adjusting the tightness of laminated pieces by using a motor and a control system thereof.
Background
The development of water-saving irrigation technology is limited, an emitter is easy to scale or block, and strict filtration treatment on a water source by means of a filter is a well-known effective solution. Among the common filter, the lamination filter effect is good, and realizes automaticly easily.
Chinese patent publication No. CN214551593U discloses a laminated filter, wherein the laminated filter employs a tapered section having an upper and a lower opening. The filter has the advantages that the risk of blockage of the laminated sheets is reduced during filtering, and the effect that the laminated sheets are separated from each other by a certain distance due to water flow impact can be achieved during backwashing, so that the backwashing effect is improved. There are the following problems: the effect of the ultrasonic vibration rod for completing the back washing is unknown; the ultrasonic vibration rod is expensive; the filtering precision of the lamination is single.
Chinese patent publication No. CN211486747U discloses a Y-shaped lamination filter, through set up inlet tube, outlet pipe and upper housing on violently managing respectively, set up lower casing on the upper housing, go up and set up filter equipment between casing and the lower casing, go up the casing and violently manage the Y style of calligraphy compact structure that forms to this reaches and is convenient for dismantle the purpose of maintaining filter equipment when reducing whole filtration system occupation space. However, through tests, the water flow directly rushes to the lamination, so that the water head loss is increased suddenly, and the whole irrigation system is further influenced.
In summary, the conventional laminated filter has the following problems: 1) The filtering precision is single, and most of common lamination filters in the market are 120 meshes; 2) The existing automatic backwashing lamination filter is not enough serialized and has higher manufacturing cost; 3) Common low-flow laminated filters do not have a back-flushing function; 4) The cavity structure is Y and T type, so that water flow directly rushes to the lamination, leading to the phenomena of sudden increase of head loss, uneven blockage and the like.
Disclosure of Invention
Aiming at the problems and defects in the prior art, the invention aims to provide a lamination filter for adjusting the tightness of laminations by using a motor, which has the advantages of adjustable filtering precision, back washing function, difficult blockage, convenient serial production and low cost.
The technical scheme adopted for realizing the aim of the invention is as follows: a lamination filter for adjusting the tightness of laminations by using a motor comprises a water inlet pipe, a tightness adjusting device, a barrel, a filter element, a base, a water outlet pipe and a blow-off pipe, wherein a water inlet is formed in the side surface of the tightness adjusting device 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 barrel through threads; the lower end of the cylinder 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 discharge pipe; a filter element is arranged above 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 connecting shaft rod, a flow divider and a machine seat, wherein the stepping motor and the speed reducer are installed 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 connecting shaft rod, and the lower end of the connecting shaft 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, and the lamination is sleeved on the framework; the lower extreme and the base of skeleton are connected, and the upper end is connected with the lower extreme of shunt, are provided with gasket and spring between the upper end of skeleton and shunt.
The flow divider is streamline, and the center of the bottom of the flow divider is inwards provided with a screw hole.
The framework consists of a bottom, a support rod, a top and a screw rod, and the bottom is provided with threads; 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 in the support rod, and the screw rod is fixed at the top; the lamination is sleeved on the support rod; the gasket and the spring are sleeved on the screw rod.
The invention also aims to provide a control system of a lamination filter for adjusting the tightness of the laminations by using a motor, 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 blow-off 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 barrel through threads; the lower end of the cylinder is connected with the upper end of the base through threads; a water outlet is arranged in the center of the lower end of the base and is communicated with one end of the water outlet pipe, and a sewage draining outlet is arranged on the side surface and is communicated with a sewage draining pipe; a filter element is arranged above 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 a 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 pipeline; the other end of the water outlet pipe is communicated with a second water pipe, a second pressure transmitter is installed on the water outlet pipe, and a first electromagnetic valve is installed on the blow-off 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 leads.
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, and the interfaces of the intelligent controller PLC comprise two RS485 interfaces, an RS232 interface, a switching value input and output interface and an analog value input and output interface and are used for collecting, processing and outputting data.
By adopting the technical scheme, during filtering, water containing impurities flows in from the inlet of the filter, flows through the flow divider to disperse water flow, flows to the lamination uniformly, and flows out from the outlet after filtering; and the pressure difference of the pressure transmitter at the inlet and the outlet of the filter is monitored in real time, and when the preset pressure difference value is reached, the stepping motor drives the flow divider to loosen the spring for backwashing. During backwashing, water flows into the lamination stack from the water outlet, the high-pressure water flows bounce the gasket to compress the spring so as to loosen the lamination stack, the lamination stack is washed by jet water, impurity-containing water is discharged from the sewage discharge outlet, the set backwashing duration is reached, and backwashing is stopped.
Compared with the prior art, the invention has the following advantages:
(1) The step motor is adopted to finely adjust the gap rate between the lamination sheets, so that the mesh number of the lamination filter can be adjusted, and the lamination filter can be matched with douches of different types.
(2) The two states of filtering and backwashing of the filter are switched by adopting the stepping motor and the reducer, so that the control of the filtering and backwashing is more stable and accurate.
(3) The invention has higher automation degree and can be remotely controlled.
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 the tightness adjustment mechanism of the laminated filter of the present invention;
FIG. 3 is a block diagram of a cartridge frame of the laminated filter of the present invention;
FIG. 4 is a schematic view of the control system of the lamination filter of the present invention;
FIG. 5 is a block diagram of a control system for the lamination filter of the present invention;
FIG. 6 is a cross-sectional view of a flow diverter of the laminated filter of the present invention;
FIG. 7 is a graph of pulse count versus gap rate for a stepper motor for a lamination filter in accordance with the present invention;
fig. 8 is a flow chart of the operation of the control system of the lamination filter of the present invention.
Reference numerals: 1-water inlet pipe, 2-tightness adjusting device, 3-cylinder, 4-filter element, 5-base, 6-water outlet pipe, 7-first pressure transmitter, 8-second pressure transmitter, 9-first electromagnetic valve, 10-water source, 11-water pump, 12-flow sensor, 13-second electromagnetic valve, 14-third electromagnetic valve, 15-fourth electromagnetic valve, 16-field irrigation pipe network, 201-stepping motor, 202-reducer, 203-connecting shaft rod, 204-diverter, 41-framework, 42-lamination, 43-gasket, 44-spring, 411-bottom, 412-supporting rod, 413-top and 414-screw.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the drawings and embodiments provided by the inventor, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a lamination filter for adjusting the tightness of laminations by using a motor comprises a water inlet pipe 1, a tightness adjusting device 2, a barrel 3, a filter element 4, a base 5, a water outlet pipe 6 and a sewage discharge 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 barrel 3 through threads; the lower end of the cylinder 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 a sewage discharge pipe; a filter element 4 is arranged above 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 coupling rod 203, a flow divider 204 and a machine seat, wherein the stepping motor 201 and the speed reducer 202 are mounted at the upper end of the machine seat in a matched mode, a power output shaft of the speed reducer 202 is connected with the upper end of the coupling rod 203, and the lower end of the coupling 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 of the framework 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 flow divider 204 is streamlined, and a screw hole is formed in the center of the bottom of the flow divider inwards.
The framework 41 consists of a bottom 411, a support rod 412, a top 413 and a screw 414, and 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, a plurality of small holes are uniformly distributed in the supporting rod, and the screw rod 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 lamination filter for adjusting the tightness of laminations 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 barrel 3 through threads; the lower end of the cylinder 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 the water outlet pipe 6, and the side surface of the base is provided with a sewage draining outlet and is communicated with a sewage draining pipe; a filter element 4 is arranged above a 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 a 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 a field irrigation pipe network row 16; a third electromagnetic valve 14 and a fourth electromagnetic valve 15 are sequentially arranged on the second water pipeline; the other end of outlet pipe 6 and second way water pipe intercommunication, install second pressure transmitter 8 on the outlet pipe 6, the blow off pipe is installed first solenoid valve 9.
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 pipeline between the third electromagnetic valve 14 and the fourth electromagnetic valve 15.
The intelligent controller PLC selects LK3U-64, and the interfaces of the intelligent controller PLC comprise two RS485 interfaces, an RS232 interface, a switching value input and output interface and an analog value input and output interface and are used for collecting, processing and outputting data.
Further, the stepping motor driver controls the stepping motor through the number of pulses; 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 so as to adjust the gap rate between the laminations, so as to match different types of douches. The gap ratio formula is as follows:
wherein (L is the total length of the gaps between the laminations, mm, L 2 The total length of the lamination, mm, ranges from 0 to 7.5%. And the number of pulses N of the stepping motor p In direct proportion to the gap rate epsilon, the relationship is as follows:
ε＝k·N p
further, the tightness of the lamination is adjustable. The function is as follows: the intelligent control system controls the stepping motor to drive the shunt to adjust the compression degree of the spring so as to adjust the gap rate among the laminations; and secondly, when the differential pressure delta H of the pressure transmitter reaches the backwashing differential pressure delta H, the intelligent control system controls the stepping motor to drive the diverter to enable the spring to recover the original state (namely the gap rate is maximum), the water flow bounces the gasket through the supporting rod to extrude the spring, the lamination is loosened to form a gap through which the backwashing water flow flows, and the lamination is flushed by ejecting high-speed water flow through a small hole of the supporting rod.
Furthermore, the shunt is fixed at the tail end of the connecting shaft rod, and the center of the shunt is provided with a thread which is matched with the screw rod; the flow divider is streamline, and has the functions of reducing energy loss caused by direct flushing of water flow and uniformly dispersing the water flow. The cross-sectional equation is:
4L 2 ·tan 2 α·x 2 +4(D 2 -L 2 )·y 2 ＝L 2 ·D 2 ·tan 2 α
wherein, D/2 is more than or equal to | x | < L.tan alpha)/2, - (L. Tan alpha)/2 is more than or equal to y < 0< alpha <90 degrees, D is the diameter of the link rod, mm; l is the outer diameter of the laminate, mm.
Further, the base can be used as a grit chamber; the side wall of the sewage draining outlet is flush with the side wall of the base, so that impurities can be conveniently drained.
PLC reads the values of the pressure sensor and the flow sensor in real time and controls the back washing pressure difference H and the required irrigation quantity Q General assembly And comparing the preset values to control the opening and closing of the electromagnetic valve and the gap rate of the tightness adjusting module, thereby realizing the micro-adjustment of the gap rate of the lamination filter when the emitter is matched and the large adjustment of the gap rate of the lamination filter when the emitter is back flushed.
When the water is in a 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, the water flows into the filter from the inlet of the filter through the flow sensor 12 and the first pressure transmitter 7, the water flows through the flow divider to disperse the water flow to the lamination 42 uniformly, and the filtered water flows out of the water outlet pipe 6 through the second pressure transmitter 8 and flows to the field irrigation pipe network 16 for irrigation; the pressure difference between 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 the preset pressure difference value is reached, 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 diverter to release the spring, the water pump 11 pumps water from the water source 10, the water flows into the filter through the second pressure transmitter 8, the high-pressure water flow bounces the gasket pressing spring to release the lamination, the lamination is flushed by jet water, sewage is discharged from the sewage discharge outlet, the time for setting the back flushing is reached, and the back flushing is stopped.
The flow divider 204 is streamlined, and has the functions of reducing energy loss caused by direct flushing of water flow and uniformly dispersing the water flow. The cross-sectional equation is (see fig. 6):
3.17x 2 -y 2 ＝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 =10mm; l =43mm.
A32 mm PVC pipe is connected with a stepping motor, the diameter of a link rod is 10mm, the outer diameter of each lamination is 43mm, the total thickness of the laminations is 129.6mm, and the maximum total gap between the laminations is 9.6 mm. The obtained measured values were fitted (see fig. 7) and the relational expression (R) was as follows 2 ＝0.998)：
ε＝8.2E-5N p
Five gap rates were selected for muddy water testing. The relationship between the obtained gap rate and the minimum particle size of the filter capable of intercepting sediment is as follows:
TABLE 1 relationship between the gap ratio and the minimum particle size of the filter for intercepting sediment
Referring to fig. 8, the operation flow chart of the filtering system includes the following specific steps:
the method comprises the following steps: setting irrigation flow Q 1 Required irrigation quantity Q General (1) The backwashing differential pressure (H, backwashing duration T, and corresponding gap rate epsilon is selected according to the corresponding table 1 of the irrigator at the tail end, and the formula is that epsilon = kN p And (5) calculating the pulse number, and controlling the stepping motor to be well adjusted by utilizing the PLC.
Step two: starting irrigation and accumulating irrigation quantity Q i 。
Step three: and collecting the pressure of the pressure transmitters (7, 8) and obtaining the actual pressure difference delta h.
Step four: the system judges whether the actual differential pressure delta H is larger than the backwashing differential pressure delta H. If not, continuing irrigation and judging; if the time reaches, the backwashing is started, and meanwhile, t is timed.
Step five: judging whether the washing time T is greater than the backwashing time T or not by the system, and if not, continuing backwashing; and if so, carrying out the next step of judgment.
Step six: system discriminates accumulated irrigation quantity Q i Whether the required irrigation quantity Q is reached General (1) If the step II to the step six are not reached, continuing the circulation of the step II to the step six; if so, the system is shut down.
Claims (6)
1. The utility model provides an utilize lamination filter of motor regulation lamination elasticity which characterized in that: the water inlet pipe comprises a water inlet pipe (1), a tightness adjusting device (2), a barrel body (3), a filter element (4), a base (5), a water outlet pipe (6) and a sewage discharge pipe, wherein a water inlet is formed in the side surface of the tightness adjusting device (2) 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 barrel body (3) through threads; the lower end of the cylinder (3) is connected with the upper end of the base (5) through threads; a water outlet is formed in the center of the lower end of the base (5) and communicated with the water outlet pipe (6), and a sewage draining outlet is formed in the side surface of the base and communicated with a sewage draining 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 shaft rod (203), a shunt (204) and a machine seat, wherein the stepping motor (201) and the speed reducer (202) are installed at the upper end of the machine seat in a matched mode, a power output shaft of the speed reducer (202) is connected with the upper end of the connecting shaft rod (203), and the lower end of the connecting shaft rod (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 extreme and the base (5) of skeleton (41) are connected, and the upper end is connected with the lower extreme of shunt (204), are provided with gasket (43) and spring (44) between the upper end of skeleton (41) and shunt (204).
2. The filter of claim 1, wherein the motor is adapted to adjust the tightness of the laminations by: the flow divider (204) is streamline, and a screw hole is formed in the center of the bottom of the flow divider inwards.
3. The filter of claim 1, wherein the motor is adapted to adjust the tightness of the laminations by: the framework (41) consists of a bottom (411), a support rod (412), a top (413) and a screw (414), and 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), a plurality of small holes are uniformly distributed in the supporting rod, and the screw rod (414) is fixed on the top (413); the lamination (42) is sleeved on the support rod (412); the gasket (43) and the spring (44) are sleeved on the screw rod (414).
4. The utility model provides an utilize motor to adjust lamination filter's of lamination elasticity control system which characterized in that: the field irrigation pipe network drainage system comprises a water inlet pipe (1), a tightness adjusting device (2), a barrel (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 drainage (16), a drainage pipe and an intelligent controller PLC (programmable logic controller);
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 barrel body (3) through threads; the lower end of the cylinder (3) is connected with the upper end of the base (5) through threads; a water outlet is formed in the center of the lower end of the base (5) and is communicated with one end of the water outlet pipe (6), and a sewage draining outlet is formed in the side surface and is communicated with a sewage draining 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); a second electromagnetic valve (13), a flow sensor (12) and a first pressure transmitter (7) are sequentially arranged on the water inlet pipe (1); one end of the water pump (11) is connected with a 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 a field irrigation pipe network row (16); a third electromagnetic valve (14) and a fourth electromagnetic valve (15) are sequentially arranged on the second water pipeline; the other end of the water outlet pipe (6) is communicated with a second water pipeline, a second pressure transmitter (8) is installed on the water outlet pipe (6), and a first electromagnetic valve (9) is installed on the sewage discharge pipe;
the intelligent controller is characterized in that 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.
5. The system for controlling a lamination filter with adjustable lamination tightness according to claim 4, wherein: the water outlet pipe (6) is connected to a second water pipeline between the third electromagnetic valve (14) and the fourth electromagnetic valve (15).
6. The control system for a lamination filter having adjustable lamination tightness according to claim 4, wherein: the intelligent controller PLC selects LK3U-64, and the interfaces of the intelligent controller PLC comprise two RS485 interfaces, one RS232 interface, a switching value input and output interface and an analog value input and output interface and are used for collecting, processing and outputting data.
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| 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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| 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 CN115414720B (en) | 2024-04-16 |
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| Publication number | Publication date |
|---|---|
| CN115414720B (en) | 2024-04-16 |
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