阅读说明：本技术 一种自旋转滤网微灌过滤器及其安装方法 (Self-rotating filter screen micro-irrigation filter and installation method thereof ) 是由 杜思琦 黄修桥 李盛宝 尚世龙 韩启彪 于 2019-09-11 设计创作，主要内容包括：本发明涉及一种自旋转滤网微灌过滤器,包括筒身、旋转轴、滤网和排污装置,所述的旋转轴设置在筒身中心线上,所述的滤网的前端设置有圆形套环,所述的滤网的后端设置有密封盖,所述的滤网后端被密封盖密封,与后盖有一定间距,所述的旋转轴与滤网固定在一起,所述的旋转轴位于小圆筒的部分设置有涡轮叶片,所述的涡轮叶片在水流冲击下带动旋转轴旋转,进而带动滤网旋转,所述的排污组件与旋转轴安装在一起,所述的排污组件不随旋转轴旋转而旋转。相较于现有的微灌网式过滤器,本发明可使截留的杂质均匀分布在滤网上,有效增加了过滤面积,再加上水流剪力对滤网上附着杂质的剥落作用,减少了局部堵塞,延长了过滤时间,有益于延长滤网使用寿命。(the invention relates to a self-rotating filter screen micro-irrigation filter, which comprises a cylinder body, a rotating shaft, a filter screen and a sewage discharge device, wherein the rotating shaft is arranged on the central 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 and is spaced from the rear cover, the rotating shaft and the filter screen are fixed together, the part of the rotating shaft, which is positioned in a small cylinder, is provided with a turbine blade, the turbine blade drives the rotating shaft to rotate under the impact of water flow so as to drive the filter screen to rotate, the sewage discharge component is installed together with the rotating shaft, and the sewage discharge component does. Compared with the existing micro-irrigation screen filter, the micro-irrigation screen filter has the advantages that the intercepted impurities can be uniformly distributed on the filter screen, the filtering area is effectively increased, and in addition, the stripping effect of the water flow shearing force on the impurities attached to the filter screen is reduced, the local blockage is reduced, the filtering time is prolonged, and the service life of the filter screen is favorably prolonged.)

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 waste fitting discharging, 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, waste fitting discharging subassembly and rotation axis installation together, waste fitting discharging not rotate and rotate along with the rotation axis.

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.

10. a method of installing a self-rotating screen micro-irrigation filter as claimed in claim 2, comprising the steps of:

(1) the rotating shaft is arranged on the central line of the filter screen, the front side of the rotating shaft is provided with a turbine blade, the rear side of the rotating shaft is fixed with a support rod, and the support rod and the front end of the filter screen are sleeved and fixed together by a circular ring;

(2) Fixing the water drop-shaped special pipe on the sewage discharge pipe through a connecting pipe, reserving a small gap between the water drop-shaped special pipe and the filter screen, and connecting the sewage discharge pipe with the rotary rod through a connecting piece;

(3) A small cylinder is sleeved on the front end of the filter screen, turbine blades on the rotating rod are positioned in the center of the small cylinder, the rear end of the small cylinder is in sealing splicing with a circular ring sleeve at the front end of the filter screen, a front cover with a water inlet is sleeved on the front end of the small cylinder, and the rotating rod penetrates through a circular hole in the center of the front cover and is subjected to sealing treatment;

(4) Sleeving a large cylinder to be hermetically spliced with the small cylinder, and then installing a rear end sealing cover of the filter screen and a rear end sealing cover of the large cylinder to enable a sewage discharge pipe to respectively penetrate through central circular holes of the rear end sealing cover of the filter screen and the rear end sealing cover of the large cylinder;

(5) The front cover is provided with a water inlet pipe and a water inlet valve, and the rear cover is provided with a water outlet pipe and a water outlet valve.

Technical Field

The invention relates to a self-rotating filter screen micro-irrigation filter and an installation method thereof, belonging to the field of farmland irrigation filters.

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.

Disclosure of Invention

The invention provides a self-rotating filter screen micro-irrigation filter and an installation method thereof, and solves the problems that the existing filter screen is easy to deform and low in utilization efficiency due to the action of pressure difference during long-term work.

in order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a self-rotating filter screen micro-irrigation filter comprises a cylinder body, a rotating shaft, a filter screen and a sewage discharge device, 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.

The invention also provides an installation method of the self-rotating filter screen micro-irrigation filter, which comprises the following steps:

(1) the rotating shaft is arranged on the central line of the filter screen, the front side of the rotating shaft is provided with a turbine blade, the rear side of the rotating shaft is fixed with a support rod, and the support rod and the front end of the filter screen are sleeved and fixed together by a circular ring;

(2) Fixing the water drop-shaped special pipe on the sewage discharge pipe through a connecting pipe, reserving a small gap between the water drop-shaped special pipe and the filter screen, and connecting the sewage discharge pipe with the rotary rod through a connecting piece;

(3) A small cylinder is sleeved on the front end of the filter screen, turbine blades on the rotating rod are positioned in the center of the small cylinder, the rear end of the small cylinder is in sealing splicing with a circular ring sleeve at the front end of the filter screen, a front cover with a water inlet is sleeved on the front end of the small cylinder, and the rotating rod penetrates through a circular hole in the center of the front cover and is subjected to sealing treatment;

(4) Sleeving a large cylinder to be hermetically spliced with the small cylinder, and then installing a rear end sealing cover of the filter screen and a rear end sealing cover of the large cylinder to enable a sewage discharge pipe to respectively penetrate through central circular holes of the rear end sealing cover of the filter screen and the rear end sealing cover of the large cylinder;

(5) The front cover is provided with a water inlet pipe and a water inlet valve, and the rear cover is provided with a water outlet pipe and a water outlet valve.

Compared with the prior art, the invention has the following advantages:

(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 used in the description of the embodiments or the prior art will be briefly described below, and 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 creative efforts.

FIG. 1 is a schematic structural view of a self-rotating screen 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 one embodiment of the waste fitting of the present invention;

FIG. 6 is a top view of another embodiment of the waste fitting 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 structural view of another embodiment of the sewage discharging apparatus 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 clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.