Two-stage electric cleaning irrigation water source filter

Abstract

The utility model discloses a two-stage electric cleaning irrigation water source filter which comprises a controller, a first-stage filter cartridge and a second-stage filter cartridge, a first-stage cylindrical filter screen is arranged in the first-stage filter cartridge, and a first-stage filter screen brush driven by a first-stage brush screen motor to rotate is arranged in the first-stage cylindrical filter screen; a second-stage cylindrical filter screen is arranged in the second-stage filter cartridge, and a second-stage filter screen brush driven by a second-stage brush screen motor to rotate is arranged in the second-stage cylindrical filter screen; a water source inlet pipe is arranged at the water inlet end of the first-stage filter cartridge; a filter communicating pipe is communicated between the water inlet end of the second-stage filter cartridge and the peripheral wall of the first-stage filter cartridge; a water source water outlet pipe is arranged on the peripheral wall of the second-stage filter cartridge, and the first-stage brush net motor and the second-stage brush net motor are controlled by the controller to perform cleaning work. Two-stage filtration is adopted, the cleaning frequency is low, and the filtration efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of farmland irrigation equipment, and particularly relates to a double-stage electric cleaning irrigation water source filter. Background Art

[0002] Drip irrigation and sprinkler irrigation are water-saving irrigation technologies that are being promoted in agricultural production. To prevent drip irrigation pipes and sprinkler nozzles from being blocked, the water quality of the irrigation water source must be filtered. The filters that filter the water quality of the water source generally include gravel filters, centrifugal filters, and mesh filters. Depending on the quality of the irrigation water, gravel filters, centrifugal filters, and mesh filters are generally used in combination. The mesh filter is generally the last link in the combined filtration, which can filter out fine sediment and organic impurities. The mesh filter is prone to clogging, and the filter needs to be cleaned continuously according to the clogging situation.

[0003] The applicant has previously applied for a patent for an electric cleaning irrigation water source filter with publication number CN221771692U, which includes a cylinder with a cylindrical filter screen inside. It is a single-stage filter, but its disadvantage is that both large and small impurities are filtered by one cylindrical filter screen, requiring frequent cleaning and low filtering efficiency. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and provides a double-stage electric cleaning irrigation water source filter, which adopts double-stage filtration, has low cleaning frequency and high filtration efficiency.

[0005] The purpose of the utility model is achieved as follows: a two-stage electric cleaning irrigation water source filter, which includes a controller, a primary filter cartridge and a secondary filter cartridge; a primary cylindrical filter screen is arranged inside the primary filter cartridge, the primary cylindrical filter screen is inside the primary net front cavity, the primary net rear cavity is between the outside of the primary cylindrical filter screen and the inner wall of the primary filter cartridge, and a primary filter screen brush driven to rotate by a primary net brush motor is arranged inside the primary cylindrical filter screen; a secondary cylindrical filter screen is arranged inside the secondary filter cartridge, the secondary cylindrical filter screen is inside the secondary net front cavity, the secondary net rear cavity is between the outside of the secondary cylindrical filter screen and the inner wall of the secondary filter cartridge, and a secondary filter screen brush driven to rotate by a secondary net brush motor is arranged inside the secondary cylindrical filter screen; a water source water inlet pipe connected to the primary net front cavity is arranged at the water inlet end of the primary filter cartridge, and a pressure detection device for detecting the primary net front cavity is arranged on the water source water inlet pipe. a pre-net pressure sensor of force; a first-level sewage cylinder connected to the first-level pre-net cavity is provided at the water outlet end of the first-level filter cartridge, the first-level sewage cylinder is connected to the first-level sewage pipe, and a first-level electric sewage valve is provided on the first-level sewage pipe; a filter connecting pipe is connected between the water inlet end of the second-level filter cartridge and the peripheral wall of the first-level filter cartridge, and the filter connecting pipe connects the first-level post-net cavity with the second-level pre-net cavity; a second-level sewage cylinder connected to the second-level pre-net cavity is provided at the water outlet end of the second-level filter cartridge, the second-level sewage cylinder is connected to the second-level sewage pipe, and a second-level electric sewage valve is provided on the second-level sewage pipe; a water source outlet pipe connected to the second-level post-net cavity and a post-net pressure sensor for detecting the pressure of the second-level post-net cavity are provided on the peripheral wall of the second-level filter cartridge; the controller is electrically connected to the pre-net pressure sensor, the post-net pressure sensor, the first-level electric sewage valve, the second-level electric sewage valve, the first-level net brushing motor, and the second-level net brushing motor.

[0006] Preferably, the primary cylindrical filter is 40-80 mesh, and the secondary cylindrical filter is 80-200 mesh. The beneficial effects of this preferred solution are: the primary cylindrical filter has large mesh size and small filtration resistance, which can filter out large particle impurities first and reduce the secondary filtration pressure; the secondary cylindrical filter has small mesh size and can meet the irrigation filtration requirements; the secondary filtration can reduce the cleaning frequency and has high filtration efficiency.

[0007] Preferably, the secondary filter cartridge has 1 to 3 fertilizer solution filling ports connected to the secondary net rear cavity. The preferred solution has the beneficial effect that it can be used on water-fertilizer integrated equipment, and the fertilizer solution filling port is used to add one or more fertilizer solutions.

[0008] Preferably, the secondary filter cartridge has a fertilizer dissolving water outlet connected to the secondary net rear cavity on its peripheral wall. The preferred solution has the beneficial effect that it can be used on water-fertilizer integrated equipment, and the water outlet can provide water for dissolving solid fertilizer.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] (1) The utility model comprises a primary filter cartridge and a secondary filter cartridge, wherein a primary cylindrical filter screen is arranged inside the primary filter cartridge, and a secondary cylindrical filter screen is arranged inside the secondary filter cartridge. It adopts two-stage filtration, wherein the primary cylindrical filter screen filters large particles of impurities, and the secondary cylindrical filter screen filters small particles of impurities, which can effectively reduce filtration resistance and improve filtration efficiency.

[0011] (2) The utility model is provided with a pressure sensor behind the net and a pressure sensor in front of the net. The controller calculates the pressure difference between the pressure sensor behind the net and the pressure sensor in front of the net, evaluates the blockage of the two cylindrical filter screens, automatically starts the screen brushing motor and opens the sewage discharge electric valve to brush the irrigation water source filter. The electric cleaning efficiency is high and the cleaning operation can be completed in a short time. The sewage discharge is small, which saves water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model double-stage electric cleaning irrigation water source filter;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the main part of the double-stage electric cleaning irrigation water source filter of the utility model;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the primary cylindrical filter and the secondary cylindrical filter of the utility model;

[0015] Figure 4 It is a three-dimensional structural schematic diagram of a primary filter brush and a secondary filter brush of the utility model.

[0016] In the figure: 1 first-level filter cartridge, 2 second-level filter cartridge, 3 first-level cylindrical filter, 4 first-level net front cavity, 5 first-level net rear cavity, 6 first-level net brush motor, 7 first-level filter brush, 8 second-level cylindrical filter, 9 second-level net front cavity, 10 second-level net rear cavity, 11 second-level net brush motor, 12 second-level filter brush, 13 water source inlet pipe, 14 front-net pressure sensor, 15 first-level sewage cylinder, 16 first-level sewage pipe, 17 first-level electric sewage valve, 18 filter connecting pipe, 19 second-level sewage cylinder, 20 second-level sewage pipe, 21 second-level electric sewage valve, 22 water source outlet pipe, 23 back-net pressure sensor, 24 fertilizer solution filling port, 25 fertilizer-soluble water outlet. DETAILED DESCRIPTION

[0017] The utility model is described in detail below in conjunction with the accompanying drawings.

[0018] like Figures 1 to 4As shown, a two-stage electric cleaning irrigation water source filter comprises a controller, a primary filter cartridge 1 and a secondary filter cartridge 2; a primary cylindrical filter screen 3 of 60 mesh is arranged inside the primary filter cartridge 1, a primary net front cavity 4 is arranged inside the primary cylindrical filter screen 3, a primary net rear cavity 5 is arranged between the outside of the primary cylindrical filter screen 3 and the inner wall of the primary filter cartridge 1, a primary filter screen brush 7 driven to rotate by a primary net brush motor 6 is arranged inside the primary cylindrical filter screen 3; a secondary cylindrical filter screen 8 of 100 mesh is arranged inside the secondary filter cartridge 2, a secondary net front cavity 9 is arranged inside the secondary cylindrical filter screen 8, a secondary net rear cavity 10 is arranged between the outside of the secondary cylindrical filter screen 8 and the inner wall of the secondary filter cartridge 2, a secondary filter screen brush 12 driven to rotate by a secondary net brush motor 11 is arranged inside the secondary cylindrical filter screen 8; a water source inlet pipe 13 connected to the primary net front cavity 4 is arranged at the water source inlet pipe 13, a net front pressure sensor 14 for detecting the pressure of the primary net front cavity 4 is arranged on the water source inlet pipe 13; a water source inlet pipe 13 connected to the primary net front cavity 4 is arranged at the water source inlet pipe 13; a water source inlet pipe 14 connected to the primary net front cavity 4 is arranged at the water outlet end of the primary filter cartridge 1 A primary drain cylinder 15 of the primary net front chamber 4 is connected to a primary drain pipe 16, and a primary electric drain valve 17 is provided on the primary drain pipe 16; a filter connecting pipe 18 is connected between the water inlet end of the secondary filter cartridge 2 and the peripheral wall of the primary filter cartridge 1, and the filter connecting pipe 18 connects the primary net rear chamber 5 with the secondary net front chamber 9; a secondary drain cylinder 19 connected to the secondary net front chamber 9 is provided at the water outlet end of the secondary filter cartridge 2, and the secondary drain cylinder 19 is connected to the secondary drain pipe 20, and a secondary electric drain valve 21 is provided on the secondary drain pipe 20; a water source outlet pipe 22 connected to the secondary net rear chamber 10, a fertilizer solution filling port 24, a fertilizer-dissolving clean water outlet 25 and a net rear pressure sensor 23 for detecting the pressure of the secondary net rear chamber 10 are provided on the peripheral wall of the secondary filter cartridge 2; the controller is electrically connected to the net front pressure sensor 14, the net rear pressure sensor 23, the primary electric drain valve 17, the secondary electric drain valve 21, the primary net brush motor 6, and the secondary net brush motor 11.

[0019] The working principle and operation steps of the utility model are as follows:

[0020] (1) Turn on the power, start the controller to perform self-test, and put the controller into working state;

[0021] (2) Start the water source pump, and the water source enters the primary net front chamber 4 from the water source inlet pipe 13, and is filtered through the primary cylindrical filter 3 to remove large particles of impurities. The primary filtered water containing small particles of impurities enters the primary net rear chamber 5; the primary filtered water enters the secondary net front chamber 9 in the secondary cylindrical filter 8 through the filter connecting pipe 18, and the primary filtered water is filtered through the secondary cylindrical filter 8 to remove small particles of impurities. The secondary filtered water that meets the irrigation requirements enters the secondary net rear chamber 10; the secondary filtered water then enters the field irrigation pipeline through the water source outlet pipe 22.

[0022] (3) The controller detects the pressure values ​​of the pre-net pressure sensor 14 and the post-net pressure sensor 23 and calculates the pressure difference. When the pressure difference reaches a certain value, it indicates that the primary cylindrical filter 3 and the secondary cylindrical filter 8 are seriously clogged. The controller first starts the primary screen brush motor 6 to drive the primary screen brush 7 to rotate, and cleans the large particles of impurities adhering to the primary cylindrical filter 3. The controller starts the secondary screen brush motor 11 to drive the secondary screen brush 12 to rotate, and cleans the small particles of impurities adhering to the secondary cylindrical filter 8. The controller then opens the primary electric drain valve 17, and the sewage in the primary net front chamber 4 is discharged through the primary drain cylinder 15 and the primary drain pipe 16. The controller opens the secondary electric drain valve 21, and the sewage in the secondary net front chamber 9 is discharged through the secondary drain cylinder 19 and the secondary drain pipe 20. After 5 to 10 seconds of draining, the controller closes the primary electric drain valve 17, the primary screen brush motor 6, the secondary electric drain valve 21 and the secondary screen brush motor 11, and completes a brushing operation. The utility model enters normal filtering operation.

[0023] The contents of the above specific implementation methods are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A two-stage electric cleaning irrigation water source filter, which includes a controller, a primary filter cartridge, a primary cylindrical filter screen is arranged inside the primary filter cartridge, the first-stage cylindrical filter screen is inside a primary screen front cavity, the first-stage screen rear cavity is between the outside of the primary cylindrical filter screen and the inner wall of the primary filter cartridge, and a primary screen brush driven to rotate by a primary screen brush motor is arranged inside the primary cylindrical filter screen; the characteristics are: It also includes a secondary filter cartridge, a secondary cylindrical filter screen is arranged inside the secondary filter cartridge, a secondary net front cavity is inside the secondary cylindrical filter screen, a secondary net rear cavity is between the outside of the secondary cylindrical filter screen and the inner wall of the secondary filter cartridge, a secondary filter screen brush driven to rotate by a secondary net brush motor is arranged inside the secondary cylindrical filter screen; a water source inlet pipe connected to the primary net front cavity is arranged at the water inlet end of the primary filter cartridge, a net front pressure sensor for detecting the pressure of the primary net front cavity is arranged on the water source inlet pipe; a primary sewage cylinder connected to the primary net front cavity is arranged at the water outlet end of the primary filter cartridge, the primary sewage cylinder is connected to the primary sewage pipe, and a primary electric sewage discharge is arranged on the primary sewage pipe Valve; a filter connecting pipe is connected between the water inlet end of the secondary filter cartridge and the peripheral wall of the primary filter cartridge, and the filter connecting pipe connects the primary net rear cavity with the secondary net front cavity; a secondary sewage cylinder connected to the secondary net front cavity is provided at the water outlet end of the secondary filter cartridge, and the secondary sewage cylinder is connected to the secondary sewage pipe, and a secondary electric sewage valve is provided on the secondary sewage pipe; a water source outlet pipe connected to the secondary net rear cavity and a net rear pressure sensor for detecting the pressure of the secondary net rear cavity are provided on the peripheral wall of the secondary filter cartridge; the controller is electrically connected to the net front pressure sensor, the net rear pressure sensor, the primary electric sewage valve, the secondary electric sewage valve, the primary net brushing motor, and the secondary net brushing motor.

2. The double-stage electric cleaning irrigation water source filter according to claim 1 is characterized in that: The first-stage cylindrical filter is 40-80 mesh, and the second-stage cylindrical filter is 80-200 mesh.

3. The double-stage electric cleaning irrigation water source filter according to claim 2 is characterized in that: The peripheral wall of the secondary filter cartridge is provided with 1 to 3 fertilizer and pesticide solution filling ports connected to the rear cavity of the secondary net.

4. The double-stage electric cleaning irrigation water source filter according to claim 3 is characterized by: The peripheral wall of the secondary filter cartridge is provided with a fertilizer-dissolving clean water outlet which is connected to the rear cavity of the secondary net.

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