CN210751589U - Self-rotating filter screen micro-irrigation filter - Google Patents

Self-rotating filter screen micro-irrigation filter Download PDF

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Publication number
CN210751589U
CN210751589U CN201921503546.3U CN201921503546U CN210751589U CN 210751589 U CN210751589 U CN 210751589U CN 201921503546 U CN201921503546 U CN 201921503546U CN 210751589 U CN210751589 U CN 210751589U
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China
Prior art keywords
filter screen
rotation axis
filter
pipe
rotating
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Withdrawn - After Issue
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CN201921503546.3U
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Chinese (zh)
Inventor
杜思琦
黄修桥
李盛宝
尚世龙
韩启彪
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Farmland Irrigation Research Institute of CAAS
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Farmland Irrigation Research Institute of CAAS
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Priority to CN201921503546.3U priority Critical patent/CN210751589U/en
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Abstract

The utility model relates to a self-rotating filter screen slight irrigation filter, including stack shell, rotation axis, filter screen and waste fitting discharging, the rotation axis setting on the stack shell central line, the front end of filter screen be provided with the circular lantern ring, the rear end of filter screen be provided with sealed lid, filter screen rear end sealed by sealed lid, be stamped a determining deviation with the back, rotation axis and filter screen fixed together, the part that the rotation axis is located little drum be provided with turbine blade, turbine blade drive the rotation axis rotation under the rivers impact, and then drive the filter screen rotation, waste fitting discharging subassembly and rotation axis installation be in the same place, waste fitting discharging not rotate and rotate along with the rotation axis. Compare in current slight irrigation net formula filter, the utility model discloses can make the impurity evenly distributed who holds back on the filter screen, effectively increased filter area, in addition rivers shear force to the filter screen on the attached impurity peel off the effect, reduced local jam, prolonged filter time, be of value to extension filter screen life.

Description

Self-rotating filter screen micro-irrigation filter
Technical Field
The utility model relates to a self-rotating filter screen micro-irrigation filter belongs to field irrigation filter field.
Background
The filter is one of key equipment of the micro-irrigation system, has important significance for ensuring the safe and stable operation of the micro-irrigation system and influences the service life of the micro-irrigation emitter. The screen filter has low cost, wide application range and good filtering effect, and is one of the commonly used filtering devices in the prior micro-irrigation. However, the prior micro-irrigation mesh filter still has some technical problems. The net filter reaches the filter effect based on the principle that the filter screen holds back impurity, but when filtering, because of rivers characteristic and structural feature, hold back impurity and often concentrate on a certain region of filter screen, make this region can form the thick filter cake of one deck very fast, reduce the filter effect, and because this regional inside and outside pressure differential is big, the filter screen can take place to warp or even damage, but the filter screen of other regions does not obtain make full use of yet, filter screen utilization efficiency and effective filtration area have been reduced, the abluent frequency of filter screen and the risk that the filter screen damaged have been increased. Meanwhile, the conventional net filter has short working time and frequent cleaning, and is difficult to continuously operate during cleaning, so that the micro-irrigation system cannot continuously operate. Chinese patent CN107648911A discloses a water turbine self-cleaning net type filter, wherein water flow drives a rotating rod and a brush to rotate after passing through the water turbine, the brush scans the whole filter screen and completes the self-cleaning process, the price is moderate, the production and the manufacture are easy, but the problems of deformation, low utilization efficiency and the like caused by the fact that the filter screen is easily subjected to the action of pressure difference during long-term work cannot be solved.
Therefore, a new self-rotating filter screen micro-irrigation filter needs to be developed, so that the intercepted impurities are uniformly distributed on the filter screen as much as possible, the filtering area is increased, the filtering time is prolonged, the cleaning frequency is reduced, and the continuous water-stop operation of a micro-irrigation system is realized.
SUMMERY OF THE UTILITY MODEL
The utility model provides a self-rotating filter screen micro-irrigation filter and installation method thereof, solved current filter screen and easily receive the pressure differential effect to lead to warping, the low scheduling problem of utilization efficiency when long-term operation.
In order to solve the technical problem, the utility model discloses a technical scheme does:
a self-rotating filter screen micro-irrigation filter comprises a cylinder body, a rotating shaft, a filter screen and a sewage discharge assembly, wherein the cylinder body comprises a small cylinder, a large cylinder, a front cover and a rear cover, the small cylinder and the big cylinder are fixed together, the small cylinder is provided with a water inlet pipe, the big cylinder is provided with a water outlet pipe, the rotating shaft is arranged on the center line of the cylinder body, the front end of the filter screen is provided with a circular lantern ring, the rear end of the filter screen is provided with a sealing cover, the rear end of the filter screen is sealed by the sealing cover, a certain distance is reserved between the rotating shaft and the rear cover, the rotating shaft and the filter screen are fixed together, the part of the rotating shaft positioned in the small cylinder is provided with turbine blades, the turbine blades drive the rotating shaft to rotate under the impact of water flow, and the filter screen is driven to rotate, the pollution discharge assembly is installed together with the rotating shaft, and the pollution discharge assembly does not rotate along with the rotation of the rotating shaft.
Preferably: the blowdown subassembly include blow off pipe, a plurality of water droplet shape mechanical tubes and a plurality of connecting pipes, the both ends of water droplet shape mechanical tubes seal, the osculum face of water droplet shape mechanical tubes be provided with little gap, the big oral area of water droplet shape mechanical tubes pass through connecting pipe and blow off pipe intercommunication, the osculum face of water droplet shape mechanical tubes with the filter screen between reserve the microgap, the filter screen when rotating water droplet shape mechanical tubes can the full coverage sweep inside the filter screen.
Preferably: and plastic sleeves are arranged at two ends of the water drop-shaped special pipe.
Preferably: one end of the rotating shaft is installed together with the front cover, the other end of the rotating shaft is installed together with the sewage discharge pipe through the connecting piece, the rotating shaft is fixed together with the circular lantern ring through the supporting rod, and the sewage discharge pipe penetrates through the sealing cover and the rear cover and extends out of the barrel.
Preferably: the utility model discloses a rotary shaft, including rotation axis, connecting piece, rotation axis both ends be in the same place with protecgulum and back lid installation respectively, the rotation axis run through the blow off pipe, the both ends of blow off pipe pass through the connecting piece and be in the same place with the rotation axis installation, the both ends of rotation axis be provided with the inclined hole respectively, inclined hole and blow off pipe intercommunication, the inclined hole of rear end sets up rotary joint and blowoff valve, the both ends of rotation axis pass through branch and fix together with circular lantern ring and sealed lid respectively.
Preferably: the filter screen on be provided with the strengthening rib, the both ends of strengthening rib respectively with circular lantern ring and sealed lid together fixed.
Preferably: the water inlet pipe is provided with a water inlet valve, and the water outlet pipe is provided with a water outlet valve and a flowmeter.
Preferably: the rotating shaft is provided with a counter.
Preferably: the front end of the rotating shaft is provided with a hand rocker.
Compared with the prior art, the utility model has the advantages of it is following:
(1) compared with the existing micro-irrigation screen type filter, the rotary filter screen can ensure that the intercepted impurities are uniformly distributed on the filter screen, effectively increases the filtering area, reduces local blockage due to the stripping effect of the water flow shearing force on the impurities attached to the filter screen, prolongs the filtering time and is beneficial to prolonging the service life of the filter screen;
(2) the filter screen is rotated to realize synchronous cleaning and filtering, so that the filter screen is cleaned more cleanly, and the cleaning water quantity is further reduced;
(3) the rotary power of the filter screen does not need to depend on external electric power, and the cost is low. Compared with a filtering device back-washed by external power, the device has stronger applicability, can be used for non-power-supply farmlands, and can be further suitable for water sources with large pollution content and large flow.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural view of a self-rotating strainer micro-irrigation filter according to the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 along the line A-A;
fig. 3 is a schematic structural diagram of another embodiment of the present invention;
fig. 4 is a front view of the waste fitting of the present invention;
FIG. 5 is a top view of an embodiment of the waste assembly of the present invention;
fig. 6 is a top view of another embodiment of a waste assembly of the present invention;
FIG. 7 is a schematic view of the structure of FIG. 4 along the line B-B;
fig. 8 is a block diagram of another embodiment of a waste assembly of the present invention.
In the figure, 1 is a hand lever, 2 is a rotating shaft, 3 is a counter, 4 is a water inlet valve, 5 is a water inlet pipe, 6 is a front cover, 7 is a small cylinder, 8 is a support, 9 is a large cylinder, 10 is a rear cover, 11 is a sewage discharge pipe, 12 is a sewage discharge valve, 13 is a water outlet pipe, 14 is a water outlet valve, 15 is a flow meter, 16 is a turbine blade, 17 is a circular lantern ring, 18 is a support rod, 19 is a connecting piece, 20 is a connecting pipe, 21 is a filter screen, 22 is a water drop-shaped special pipe, 23 is a sealing cover, 24 is a reinforcing rib, 25 is an inclined hole, 26 is a rotary joint, 27 is a small gap, and 28 is a plastic sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-2 and 4-8, the self-rotating filter screen micro-irrigation filter comprises a cylinder body, a rotating shaft 2, a filter screen 21 and a pollution discharge assembly, wherein the cylinder body comprises a small cylinder 7, a large cylinder 9, a front cover 6 and a rear cover 10, the small cylinder 7 and the large cylinder 9 are fixed together, and a bracket 8 is arranged at the lower parts of the small cylinder 7 and the large cylinder 9. Small circle section of thick bamboo 7 on be provided with inlet tube 5, big cylinder 9 on be provided with outlet pipe 13, rotation axis 2 set up on stack shell central line, the front end of filter screen 21 be provided with circular lantern ring 17, the rear end of filter screen 21 be provided with sealed lid 23, filter screen 21 rear end sealed by sealed lid 23, have a certain interval with back lid 10.
One end of the rotating shaft 2 is installed together with the front cover 6, the other end of the rotating shaft 2 is installed together with the sewage discharge pipe 11 through the connecting piece 19, the rotating shaft 2 is fixed together with the circular lantern ring 17 through the supporting rod 18, and the sewage discharge pipe 11 penetrates through the sealing cover 23 and the rear cover 10 and extends out of the cylinder body. The connecting piece 19 adopts a mechanical sealing element.
The part of the rotating shaft 2, which is positioned on the small cylinder 7, is provided with turbine blades 16, the turbine blades 16 drive the rotating shaft 2 to rotate under the impact of water flow, and further drive the filter screen 21 to rotate, the pollution discharge assembly is installed together with the rotating shaft 2, and the pollution discharge assembly does not rotate along with the rotation of the rotating shaft 2.
The water inlet pipe 5 can also be arranged on the small cylinder body, and the water flow direction of the inlet water is tangential to the turbine blade 16, so that the power of the water flow participates in pushing the turbine blade 16 to rotate to the maximum extent.
The blowdown subassembly includes blow off pipe 11, a plurality of water droplet shape mechanical tubes 22 and a plurality of connecting pipes 20, the both ends of water droplet shape mechanical tubes 22 seal, the small-bore face of water droplet shape mechanical tubes 22 be provided with little gap 27, the big orofacial features of water droplet shape mechanical tubes 22 pass through connecting pipe 20 and blow off pipe 11 intercommunication, the small-bore face of water droplet shape mechanical tubes 22 with filter screen 21 between reserve the little clearance, filter screen 21 when rotating water droplet shape mechanical tubes 22 can the full coverage sweep inside filter screen 21. The outlet end of the sewage draining pipe 11 is provided with a sewage draining valve 12.
The water drop-shaped mechanical tubes 22 play the effect of adsorbing the filtering impurities on the filter screen 21 into the sewage discharge pipe 11 on the one hand, play the effect of supporting the filter screen 21 on the one hand, can set up according to actual need, can set up 2 like the picture is crisscross, and every sets up two connecting pipes 20, can set up four, and every sets up a connecting pipe 20.
In the drop shape mechanical tubes 22 and the filter screen 21 relative motion in-process, the both ends and the filter screen 21 contact of drop shape mechanical tubes 22, and metal relative friction can cause the damage to filter screen 21, reduces the life of filter screen 21, consequently the utility model discloses a priority scheme is provided with plastic sheath 28 at the both ends of drop shape mechanical tubes 22 for plastics and filter screen 21 contact, reduce the damage of friction to filter screen 21 effectively, improve life.
The filter screen 21 is provided with a reinforcing rib 24, and two ends of the reinforcing rib 24 are respectively fixed with the circular lantern ring 17 and the sealing cover 23. 2 one end of rotation axis in this embodiment is connected with circular lantern ring 17 through branch 18 with filter screen 21, and in filter screen 21 is rotatory, because filter screen 21 moves in aqueous, it is big to receive the influence of gravity, leads to filter screen 21 front and back atress inequality, causes filter screen 21 distortion easily, warp, the utility model discloses a set up strengthening rib 24 and can reduce filter screen 21 operation in-process distortion effectively, improve equipment's life.
The water inlet pipe 5 is provided with a water inlet valve 4, and the water outlet pipe 13 is provided with a water outlet valve 14 and a flow meter 15 for controlling the flow of inlet and outlet water.
In actual operation, the turbine blades 16 rotate slowly due to the water velocity and gravity, resulting in poor dirt removal. The utility model discloses a be provided with counter 3 on rotation axis 2, judge turbine blade 16's rotation rate through counter 3. If the rotating speed is low, the hand crank 1 or the motor is arranged at the front end of the rotating shaft 2 to drive the rotating shaft 2 to rotate, so that the problem of insufficient water flow power is solved.
The utility model discloses a method for installing self-rotating filter screen micro-irrigation filter, including following step:
(1) the rotating shaft 2 is arranged on the central line of the filter screen, the front side is provided with turbine blades 16, the rear side is fixed with a support rod 18, and the support rod 18 is fixed with a circular ring sleeve at the front end of the filter screen;
(2) fixing a water drop-shaped special pipe 22 on the sewage discharge pipe 11 through a connecting pipe 20, reserving a small gap between the water drop-shaped special pipe 22 and the filter screen, and connecting the sewage discharge pipe 11 with a rotating rod through a connecting piece 19;
(3) a small cylinder 7 is sleeved on the front end of the filter screen, a turbine blade 16 on the rotating rod is positioned in the center of the small cylinder 7, the rear end of the small cylinder 7 is in sealing splicing with a circular ring sleeve at the front end of the filter screen, a front cover 6 with a water inlet is sleeved on the front end, and the rotating rod penetrates through a circular hole in the center of the front cover 6 and is subjected to sealing treatment;
(4) sleeving a large cylinder 9 to be in sealing splicing with the small cylinder 7, and then installing a filter screen rear end sealing cover 23 and a large cylinder 9 rear end sealing cover 23 to enable a sewage discharge pipe 11 to respectively penetrate through central circular holes of the filter screen rear end sealing cover 23 and the large cylinder 9 rear end sealing cover 23;
(5) the front cover 6 is provided with a water inlet pipe 5 and a water inlet valve 4, the rear cover 10 is provided with a water outlet pipe 13 and a water outlet valve 14, the sewage discharge pipe 11 is provided with a sewage discharge valve 12, the rotating rod is provided with a counter 3, and the front end can be provided with a hand lever or a motor if necessary.
The use method of the self-rotating filter screen micro-irrigation filter is as follows: the water inlet valve 4 and the water outlet valve 14 are opened, water flows into the small cylinder 7 and impacts on the turbine blade 16, power is transmitted to the turbine to rotate the turbine, and the rotating rod and the filter screen are driven to rotate. Subsequently, the water flow enters the large cylinder 9, flows from the inside of the filter screen to the outside to complete the filtering process, and then is injected into the irrigation system through the water outlet pipe 13. Along with more and more silt deposit on the filter screen, open blowoff valve 12, at this moment, blowoff valve 12 export and atmosphere intercommunication, the inside water pressure of filter forms certain pressure differential with outside atmosphere for the blowoff component of side trompil produces powerful suction, and in addition the scouring force of the high-speed rivers of blowoff component opening part, the impurity granule is inhaled blow off pipe 11 and is discharged.
Example 2
As shown in fig. 1 and 3, basically the same as in embodiment 1, except that: the two ends of the rotating shaft 2 are respectively installed together with the front cover 6 and the rear cover 10, the rotating shaft 2 penetrates through the sewage discharge pipe 11, the two ends of the sewage discharge pipe 11 are installed together with the rotating shaft 2 through the connecting piece 19, the two ends of the rotating shaft 2 are respectively provided with an inclined hole 25, the inclined holes 25 are communicated with the sewage discharge pipe 11, and the two ends of the rotating shaft 2 are respectively fixed together with the circular lantern ring 17 and the sealing cover 23 through the supporting rod 18.
The inclined hole 25 at the inlet end of the rotating shaft 2 is provided with a plug, the plug is used for sealing in the running process of the equipment to prevent sewage from flowing out, and when the equipment runs for a period of time, the inclined hole 25 is used for cleaning with clear water. A rotary joint 26 and a blow-down valve 12 are provided at the rear inclined hole 25.
This embodiment adopts and passes through branch 18 with the filter screen both ends fixed, can make the filter screen wholly rotate under the drive of rotation axis 2, and the filter screen that 2 unilateral drive filter screen of effectual reduction rotation axis caused warp. The both ends of blow off pipe 11 are sealed through mechanical seal spare, and rotation axis 2 is fixed in mechanical seal spare's rotating ring in the operation process, and blow off pipe 11 is fixed in the quiet ring, and rotation axis 2 rotates under the drive of turbine, and blow off pipe 11 is in quiescent condition basically under self action of gravity.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a filter is irritated a little to autogyration filter screen which characterized in that: including stack shell, rotation axis, filter screen and blowdown subassembly, the stack shell include little drum, big drum, protecgulum and hou gai, little drum and big drum fix together, little drum on be provided with the inlet tube, big drum on be provided with the outlet pipe, the rotation axis setting on the stack shell central line, the front end of filter screen be provided with the circular lantern ring, the rear end of filter screen be provided with sealed lid, the filter screen rear end sealed by sealed lid, be stamped a certain interval with the back, the rotation axis be in the same place with the filter screen is fixed, the part that the rotation axis is located little drum be provided with turbine blade, turbine blade drive the rotation axis rotation under the rivers impact, and then drive the filter screen rotation, blowdown subassembly and rotation axis installation together, the blowdown subassembly not rotate and rotate along with the rotation axis and rotate.
2. The micro-irrigation filter with a self-rotating screen of claim 1, wherein: the blowdown subassembly include blow off pipe, a plurality of water droplet shape mechanical tubes and a plurality of connecting pipes, the both ends of water droplet shape mechanical tubes seal, the osculum face of water droplet shape mechanical tubes be provided with little gap, the big oral area of water droplet shape mechanical tubes pass through connecting pipe and blow off pipe intercommunication, the osculum face of water droplet shape mechanical tubes with the filter screen between reserve the microgap, the filter screen when rotating water droplet shape mechanical tubes can the full coverage sweep inside the filter screen.
3. The micro-irrigation filter with a self-rotating screen of claim 2, wherein: and plastic sleeves are arranged at two ends of the water drop-shaped special pipe.
4. The micro-irrigation filter with a self-rotating screen of claim 2, wherein: one end of the rotating shaft is installed together with the front cover, the other end of the rotating shaft is installed together with the sewage discharge pipe through the connecting piece, the rotating shaft is fixed together with the circular lantern ring through the supporting rod, and the sewage discharge pipe penetrates through the sealing cover and the rear cover and extends out of the barrel.
5. The micro-irrigation filter with a self-rotating screen of claim 2, wherein: the utility model discloses a rotary shaft, including rotation axis, connecting piece, rotation axis both ends be in the same place with protecgulum and back lid installation respectively, the rotation axis run through the blow off pipe, the both ends of blow off pipe pass through the connecting piece and be in the same place with the rotation axis installation, the both ends of rotation axis be provided with the inclined hole respectively, inclined hole and blow off pipe intercommunication, the inclined hole of rear end sets up rotary joint and blowoff valve, the both ends of rotation axis pass through branch and fix together with circular lantern ring and sealed lid respectively.
6. A self-rotating screen micro-irrigation filter as claimed in claim 4 or 5, wherein: the filter screen on be provided with the strengthening rib, the both ends of strengthening rib respectively with circular lantern ring and sealed lid together fixed.
7. A self-rotating screen micro-irrigation filter as claimed in any one of claims 1 to 5, wherein: the water inlet pipe is provided with a water inlet valve, and the water outlet pipe is provided with a water outlet valve and a flowmeter.
8. A self-rotating screen micro-irrigation filter as claimed in any one of claims 1 to 5, wherein: the rotating shaft is provided with a counter.
9. A self-rotating screen micro-irrigation filter as claimed in any one of claims 1 to 5, wherein: the front end of the rotating shaft is provided with a hand rocker.
CN201921503546.3U 2019-09-11 2019-09-11 Self-rotating filter screen micro-irrigation filter Withdrawn - After Issue CN210751589U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921503546.3U CN210751589U (en) 2019-09-11 2019-09-11 Self-rotating filter screen micro-irrigation filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921503546.3U CN210751589U (en) 2019-09-11 2019-09-11 Self-rotating filter screen micro-irrigation filter

Publications (1)

Publication Number Publication Date
CN210751589U true CN210751589U (en) 2020-06-16

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Application Number Title Priority Date Filing Date
CN201921503546.3U Withdrawn - After Issue CN210751589U (en) 2019-09-11 2019-09-11 Self-rotating filter screen micro-irrigation filter

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110538505A (en) * 2019-09-11 2019-12-06 中国农业科学院农田灌溉研究所 Self-rotating filter screen micro-irrigation filter and installation method thereof
CN114993791A (en) * 2022-08-04 2022-09-02 自然资源部第二海洋研究所 Sediment gap water autosegregation collection system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110538505A (en) * 2019-09-11 2019-12-06 中国农业科学院农田灌溉研究所 Self-rotating filter screen micro-irrigation filter and installation method thereof
CN110538505B (en) * 2019-09-11 2024-05-31 中国农业科学院农田灌溉研究所 Micro-irrigation filter with self-rotating filter screen and installation method thereof
CN114993791A (en) * 2022-08-04 2022-09-02 自然资源部第二海洋研究所 Sediment gap water autosegregation collection system

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