Automatic centrifugal screen filter

Structure

Automatic wedge wire centrifugal screen filter, including controller, centrifugal filter, and screen filter.

The bottom of the centrifugal filter tank body is provided with a centrifugal tank cone, one side of which is provided with a water inlet, and the top of which is provided with a sealing end cover.

The end of the cone of the centrifugal tank is connected with a storage screen filter, the top of the filter is respectively provided with a blowdown exhaust valve, and one side of the filter is provided with a water outlet, which is characterized in that the inner part of the filter tank body is welded with a centrifugal filter and a screen filter shaft, and the bottom of the tank and the end of the cone of the centrifugal tank is welded by four symmetrical support plates.

A stainless steel wedge wire screen is arranged at the end face of the bottom end of the water separator, and a support frame is arranged at the bottom of the stainless steel wedge wire screen.

A stainless steel wire brush is arranged on the support frame and connected with the brush shaft; support is arranged on the sealing end cover and a reduction motor is arranged on the base; the reduction motor is backwashed with the brush shaft respectively.

1.Full automatic centrifugal screen filter, including independently installed controller (18), centrifugal filter in centrifugal filter tank (12), and screen filter with stainless steel wedge wire screen (3).

The bottom of the centrifugal filter tank body (12) is provided with a centrifugal tank cone (16), one side of which is provided with a water inlet (4), and the top of which is provided with a sealing end cover (5).
The end of the centrifugal tank cone (16) is connected with a sand storage tank (17).
The top of the screen filter is respectively provided with a blowdown pipe (1) and an exhaust valve (7), and its side is provided with a water outlet (8), which is characterized in that the centrifugal filter tank body (12) is internally welded with a water separator (13) coaxial with the centrifugal filter and the screen filter, and the bottom of the water separator (13) and the end of the centrifugal tank cone (16) are welded and fixed by four symmetrical support plates (14).
The stainless steel wedge wire screen (3) is fixed on the end face of the bottom end of the water separator (13), and the bottom of the stainless steel wedge wire screen (3) is provided with a support frame; the support frame is matched with a stainless steel wire brush (10) and a brush shaft (9); the brush shaft (9) is connected with the sealing end cover (5).
The sealing end cover (5) is provided with a support which is provided with a reduction motor (6).
The reduction motor (6) is respectively connected with the output ends of the brush shaft (9) and the controller (18).

2.The automatic centrifugal screen filter according to claim 1, is characterized in that the sealing end cover (5) and the centrifugal filter tank body (12) are connected together by the flange.

3. The fully automatic centrifugal screen filter according to claim 1, is characterized in that the sealing end cover (5) is connected with the brush shaft (9) through a mechanical seal (2), and the middle part is provided with a central hole, which is installed with the mechanical seal (2).

4. The fully automatic centrifugal screen filter according to claim 1, is characterized in that the brush shaft (9) is provided with a nylon sleeve (11).

5. The fully automatic centrifugal screen filter according to claim 1, is characterized in that the support plate (14) and the bottom end of the stainless steel wedge net (3) are connected together by a 0-type sealing ring (5).

6. The fully automatic centrifugal screen filter according to claim 1, is characterized in that the support frame is Y-shaped and has fan-shaped holes.

7. The fully automatic centrifugal screen filter according to claim 1, is characterized in that the bottom end face of the water separator (13) is L-shaped.

8. The full-automatic centrifugal screen filter according to claim 1, is characterized in that the orifice of the sewage pipe (1) is provided with an electromagnetic diaphragm valve (21).

9. The full-automatic centrifugal screen filter according to claim 1, is characterized in that the water inlet (4) and the water outlet (8) are both provided with inlet and outlet pressure gauges (19), and the two inlet and outlet pressure gauges (19) are connected through a pipeline; the pipeline is provided with a pressure difference switch (20) with a normally open contact.

10. The full-automatic centrifugal screen filter according to claim 1, is characterized in that: the controller (18) is externally connected with a 380V power supply, which is respectively provided with a manual switch and an automatic switch, and a differential pressure control terminal is provided inside; the differential pressure control terminal is connected with the normally open contact of the differential pressure switch (20); The manual switch and the automatic switch are respectively connected with the screen filter and the electromagnetic diaphragm valve (21).

The utility model relates to the first fertilizer filter device in agricultural water-saving irrigation equipment, in particular to a full-automatic centrifugal screen filter.

At present, how to develop water resources, in the long run, is a problem of universal concern all over the world.

For a long time, agricultural and rural domestic water consumption accounted for the vast majority of the total water consumption in China. With the advancement of industrialization and urbanization, this proportion is gradually decreasing. In the past few years, the reduction of agricultural water consumption is at the cost of the continuous decline of crop production. Due to the decreasing contribution rate of unit water consumption to crop production, the demand for increasing crop yield is that the long-term demand for irrigation water for human beings is expanding at a faster speed.

At present and in the future, it is impossible for agriculture to obtain more water resources. In terms of the existing agricultural irrigation level and water use mode, the problem of agricultural irrigation in China is more prominent. Water-saving irrigation, simply speaking, refers to the use of advanced agricultural water-saving technology to improve the utilization rate of irrigation water and water productivity.

In other words, water-saving irrigation is an irrigation form that uses as little water input as possible to achieve as much crop output as possible. In water-saving irrigation, drip irrigation is one of the most water-saving irrigation technologies for farmland irrigation so far, and drip irrigation technology has high requirements for water quality. Water with impurities is easy to cause the emitter to block the head filter of the irrigation system, which becomes the key to the normal operation of the system, Automatic fertilizer filter has gradually entered the mainstream market of water-saving irrigation industry and become the focus of irrigation equipment. In order to solve the problem of large space occupation and difficult brushing in the use of a centrifugal combined filter, a kind of automatic centrifugal screen filter can fundamentally solve this problem.

In order to solve the above problems, the automatic centrifugal screen filter of the utility model comprises a controller that is independently installed, a centrifugal filter that is arranged in the centrifugal filter tank body, and a screen filter that is provided with a stainless steel wedge wire screen.

The bottom of the centrifugal filter tank body is provided with a centrifugal tank cone, one side of which is provided with a water inlet, and the top of which is provided with a sealing end cover.

The end of the cone of the centrifugal tank is connected with a sand storage tank; the top of the screen filter is respectively provided with a blowdown pipe and an exhaust valve, and one side of the screen filter is provided with a water outlet, which is characterized in that the inner part of the tank body of the centrifugal filter is welded with a water separator which is coaxial with the screen filter, The bottom of the water separator and the end of the cone of the centrifugal tank are welded and fixed by four symmetrical support plates.

The stainless steel wedge net is fixed on the end face of the bottom end of the water separator, and the bottom of the stainless steel wedge wire screen is provided with a support frame; the support frame is matched with a stainless steel wire brush and a brush shaft.

The brush shaft is connected with the sealing end cover.

The sealing end cover is provided with support on which a reduction motor is arranged, and the reduction motor is respectively connected with the output end of the brush shaft and the controller.

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

1. The centrifugal filter and mesh filter are compatible with the centrifugal filter, which makes effective use of the internal space of the centrifugal filter and does not affect their respective filtering effect. There are two filtering methods of the filter.

2. The filter screen of the utility model is made of stainless steel, which can prevent the filter screen from rusting due to long-term immersion in water, and the filter screen adopts a wedge structure, which can facilitate the brushing of steel wire brush during washing.

3. The automatic blowdown device in the utility model can replace people to brush the filter screen by cooperating with the motor drive wire brush, thus saving the labor intensity of the operators.

4. Because the utility model uses a compatible structure, the installation space of the utility model is reduced, and the utility model is exquisite and beautiful. At the same time, it realizes the integration of filtration, sewage discharge, and cleaning, and solves the problems of automatic backwashing difficulty and large installation area of centrifugal screen filter for agricultural irrigation.