CN201536532U - A centrifugal sand net type manual backwash filter fertilization device - Google Patents

Abstract

The utility model relates to a centrifugal sandstone net type manual backwash filter fertilization device, which comprises a sand storage tank, a centrifugal filter, two sandstone filters, a net filter body composed of five net filters and Fertilizer tank. The bottom of the centrifugal filter is connected with the top of the sand storage tank, and the top is connected with an L-shaped connecting pipe, and the upper side is provided with a water inlet pipe; One end of the two gravel filters is connected; the other ends of the two gravel filters are respectively connected to the net filter body through the filter body water inlet main pipe; the bottom of the net type filter body is connected to the filter body water outlet main pipe; The fertilization water inlet pipe and the fertilization water outlet pipe are connected with the L-shaped connecting pipe, and the fertilization water outlet pipe is connected with the water inlet main pipe of the gravel filter. The utility model is easy to operate and maintain, and can realize the purpose of filtering surface water sources with high sand content through centrifugation, sand and stone, and net-type triple filtration.

Description

A centrifugal sand net type manual backwash filter fertilization device

technical field

The utility model relates to a filter and fertilization device in agricultural water-saving irrigation equipment, in particular to a centrifugal sand net type manual backwash filter and fertilization device.

Background technique

With the rapid development of modern agricultural water-saving irrigation technology, drip irrigation and sprinkler irrigation technology are being more and more widely used. At present, the filter devices used in conjunction with drip irrigation and sprinkler irrigation can be divided into four types according to filter media: centrifugal type, gravel type, mesh type, and laminated type. Depending on the water quality, it is sometimes necessary to combine filters of several structures to form two or more stages of filtration, in order to achieve accurate and efficient filtration, to ensure that the water quality of the irrigation system is clean and the emitters are not blocked.

At present, when the sand content of the surface water source is high, the centrifugal mesh combined filter is generally used, but this structure can effectively filter the sand and gravel in the water, but cannot effectively filter the microorganisms such as algae. For this reason, a combined filter fertilizer applicator is designed that is easy to operate and can realize fertilization while filtering. It can effectively and reliably filter microorganisms such as sand, gravel and algae, and simultaneously realize Fertilization function, and meet the flow demand of well water at 200m ³ /h.

Utility model content

The technical problem to be solved by the utility model is to provide a centrifugal sand net type manual backwash filter fertilization device which is easy to operate, easy to maintain, and suitable for filtering surface water sources with high sand content.

In order to solve the above problems, a kind of centrifugal sand net type manual backwash filter fertilization device described in the utility model is characterized in that: the device includes a sand storage tank, a centrifugal filter, a sand filter I, a sand filter II. A mesh filter body and fertilization tank consisting of five mesh filters; the bottom of the centrifugal filter is connected to the top of the sand storage tank, and the top is connected with an L-shaped connecting pipe, and the upper side is provided with a Water inlet pipe; the other nozzle of the L-shaped connecting pipe is connected with the sandstone filter inlet main pipe I through the fertilization valve, and the sandstone filter water inlet pipe I is connected with the sandstone filter I, sandstone water inlet pipe respectively. One end of the filter II is connected to the inlet main pipe II of the sand filter; the other ends of the sand filter I and the sand filter II are respectively connected to the mesh filter body through the inlet main pipe of the mesh filter body The bottom of the mesh filter body is connected with a mesh filter outlet main pipe; the fertilization tank is respectively provided with a fertilization inlet pipe and a fertilization outlet pipe, the fertilization inlet pipe is connected with the L-shaped connecting pipe, and the fertilization outlet pipe It is connected with the inlet main pipe I of the sand filter.

Described gravel filter water inlet main pipe 1, net type filter body water inlet main body, net type filter body water outlet main body are all provided with the pressure gauge of band buffer pipe.

An exhaust valve I is provided at the junction of the sand filter water inlet main pipe I and the sand stone filter water inlet main pipe II.

The tops of the sand filter I and the sand filter II are respectively provided with two backwash pipes I and backwash pipe II connected together by a backwash tee and the sand filter inlet main pipe II The connected water inlet branch pipes are provided with two exhaust valves II between the two water inlet branch pipes; the sand filter I and the sand filter II are equipped with quartz sand, and the bottoms are respectively provided with filter caps water collector.

A water diversion plate is provided at the bottom of the water inlet branch pipe.

The lower part of one side of the mesh filter body is provided with a sewage discharge port connected with a sewage discharge pressure relief valve.

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

1. Since the utility model adopts centrifugal, gravel and net-type triple filtration, and realizes the backwash self-cleaning function through the control of the manual backwash valve, it can effectively filter surface water sources with high microbial content such as sand content and algae .

2. Since the utility model is equipped with five sets of mesh filter units with an excess flow rate of 40m ³ /h, the flow rate can be guaranteed to reach 200 ³ /h, and the irrigation control area can reach 600-800 mu.

3. Since the utility model is equipped with a manual control valve body, it does not need to be equipped with special personnel, which makes management and maintenance convenient and reduces costs.

4. The utility model is simple in structure and easy to operate.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a top view of the utility model.

Fig. 3 is a structural schematic diagram of the sand filter in the utility model.

In the figure: 1-sand storage tank 2-centrifugal filter 3-sand filter I 4-sand filter II5-net filter body 6-fertilization tank 7-L-shaped connecting pipe 8-inlet pipe 9-sand Filter water inlet supervisor I 10-Sand filter inlet supervisor II 11-Buffer pipe 12-Pressure gauge 13-Backwash pipe I 14-Backwash tee 15-Backwash pipe II16-Mesh filter inlet supervisor 17-Water inlet branch pipe 18-Mesh filter outlet main pipe 19-Sewage outlet 20-Sewage discharge pressure relief valve 21-Fertilization outlet pipe 22-Fertilization inlet pipe 23-Exhaust valve I 24-Fertilization valve 25-Quartz sand 26-Row Air valve II 27-dividing plate 28-filter cap water collector

Detailed ways

As shown in Fig. 1 and Fig. 2, a centrifugal sand net type manual backwash filter fertilization device includes a sand storage tank 1, a centrifugal filter 2, a sand filter I3, and a sand filter II4. The mesh filter body 5 and fertilization tank 6 that filter forms.

The bottom of centrifugal filter 2 is connected with the top of sand storage tank 1, and its top is connected with L-shaped connecting pipe 7, and its upper side is provided with water inlet pipe 8; The stone filter water inlet main pipe I9 is connected, and the sand stone filter water inlet main pipe I9 is connected with the sand stone filter water inlet main pipe II10 which is respectively connected with one end of the sand stone filter I3 and the sand stone filter II4. The other ends of the gravel filter I3 and the gravel filter II4 are respectively connected to the net filter body 5 through the net filter water inlet main pipe 16; The connection is provided with an exhaust valve I23.

The tops of the gravel filter I3 and the gravel filter II4 are respectively provided with two backwashing pipes I13 and backwashing pipe II15 which are connected together through the backwashing tee 14 and the inlet pipe II15 which is connected to the sandstone filter inlet main pipe II10. Water branch pipe 17, two exhaust valves II26 are arranged between the two water inlet branch pipes 17; sandstone filter I3 and sandstone filter II4 are all provided with quartz sand 25, and the bottoms are respectively provided with filter caps for water collection Device 28, the bottom end of water inlet branch pipe 17 is provided with water dividing plate 27 (referring to Fig. 3).

Net filter body 5 bottoms are connected with net filter body outlet main pipe 18, and its side bottom is provided with the blowdown outlet 19 that is connected with blowdown pressure relief valve 20.

Fertilization tank 6 is respectively provided with fertilization inlet pipe 22, fertilization outlet pipe 21, and this fertilization inlet pipe 22 links to each other with L-shaped connection pipe 7, and this fertilization outlet pipe 21 links to each other with gravel filter inlet main pipe 19.

Wherein the gravel filter water inlet main pipe 19, the net type filter body water inlet main pipe 16, the net type filter body water outlet main pipe 18 are all equipped with a pressure gauge 12 with a buffer pipe 11.

The working principle of the utility model: the external water flow is pressurized by the water pump to form a high-speed water flow, and quickly enters the centrifugal filter 2 through the inlet of the water inlet pipe 8 along the centrifugal direction to form a high-speed swirling flow. The funnel-shaped centrifugal filter 2 uses high pressure to make the untreated water flow High-speed rotating water flow is generated. At this time, impurities with different specific gravity in the water are separated under the action of swirling flow. Since the specific gravity of water is small and the specific gravity of sand particles is large, due to the centrifugal force, the water with light specific gravity gathers along the middle, while the specific gravity The heavy sand and gravel impurities hit the inner wall outwards and sink naturally from the lower part of the centrifugal filter 2 into the sand storage tank 1, and flow out through the outlet of the sand storage tank 1, and the water flows along the middle of the centrifugal filter 2. The outlet of the filter enters the L-shaped connecting pipe 7 to complete the primary filtration.

The treated water flows out from the central upper part of the centrifugal filter 2 along the L-shaped connecting pipe 7, and enters the four cavities of the gravel filter I3 and the gravel filter II4 for secondary filtration. In order to completely discharge the air in the centrifugal filter 2, an exhaust valve I23 is added. After the exhaust is completed, the water flows into the sand filter I3, the sand filter through the sand filter inlet main pipe I9, and the sand filter water inlet pipe II10. Inside the stone filter II4. Because there is water dividing plate 27 to stop in the middle of gravel filter I3, gravel filter II4 to make water flow shunt around, media quartz sand 25 is arranged in the gravel filter I3, gravel filter II4 to filter microorganisms in water and large in the water flow Suspended matter impurities etc., the water flow penetrates into the bottom of the gravel filter I3 and the gravel filter II4, and enters the outlet pipe after passing through the filter cap water collector 28 at the bottom. The water inlet and outlet of sand filter I3 and sand filter II4 are equipped with a pressure gauge 12 and a pressure detection system. The valve body on the flushing tee 14 controls to open a single cavity of the gravel filter that needs to be backwashed. At this time, the upper part of the gravel filter is opened and the pressure is zero, and the lower part uses high water pressure to backwash the sand in the gravel filter. Stone, to achieve the purpose of cleaning sand and gravel. Set certain backwashing time simultaneously, after backwashing is finished, manually close the valve body on the backwashing tee 14, then stop running, and system just finishes a backwashing cleaning cycle.

The water flows through the gravel filter I3 and the gravel filter II4 and then enters the mesh filter body 5, and the water flow through the mesh filter body inlet main pipe 16 is divided into five strands and enters five mesh filters for third-stage filtration. The mesh filter mainly uses 80-120 mesh stainless steel mesh to filter microorganisms and small organic impurities in the water in three stages. After the filtration is completed, the water flows out from the outlet main pipe 18 of the mesh filter, and at the same time, the impurities are discharged from the sewage outlet 19 through the sewage pressure relief valve 20, thereby realizing the cleaning of the mesh filter 5.

In the utility model, the fertilization tank 6 selects the differential pressure type fertilizer for use. The high-speed water flow in the centrifugal filter part evenly flushes the fertilizer in the fertilization tank 6, and by adjusting the opening of the fertilization valve 24 on the L-shaped connecting pipe 7, the pressure difference between the inlet and outlet of the fertilization tank 6 is achieved to achieve the purpose of fertilization.

Claims (6)

1. A centrifugal sandstone net type manual backwashing filter fertilization device is characterized in that: the device comprises sand storage tank (1), centrifugal filter (2), sandstone filter 1 (3), sandstone filter II (4), a mesh filter body (5) and a fertilization tank (6) composed of five groups of mesh filters; the bottom of the centrifugal filter (2) is connected to the top of the sand storage tank (1), Its top is connected with an L-shaped connecting pipe (7), and one side of its upper part is provided with a water inlet pipe (8); the other nozzle of the L-shaped connecting pipe (7) is fed into a sand filter through a fertilization valve (24). The main water pipe I (9) is connected to each other, and the water inlet pipe I (9) of the sandstone filter is connected to the sandstone filter connected to one end of the sandstone filter I (3) and the sandstone filter II (4) respectively. The water inlet main pipe II (10) is connected; the other end of the gravel filter I (3) and the sand gravel filter II (4) are connected to the net filter body water inlet main pipe (16) and the net filter body respectively. (5) connect to each other; the bottom of the mesh filter body (5) is connected with a mesh filter body outlet main pipe (18); the fertilization tank (6) is respectively provided with a fertilization water inlet pipe (22), a fertilization water outlet pipe (21 ), the fertilization inlet pipe (22) is connected with the L-shaped connecting pipe (7), and the fertilization outlet pipe (21) is connected with the sand filter inlet main pipe I (9). 2. A kind of centrifugal sandstone net type manual backwashing filtration fertilization device as claimed in claim 1, is characterized in that: described sandstone filter inlet main pipe 1 (9), net filter body water inlet main pipe (16 ), the net type filter body outlet main pipe (18) are all provided with the pressure gauge (12) of band buffer pipe (11). 3. A kind of centrifugal gravel net type manual backwash filter fertilization device as claimed in claim 1, it is characterized in that: described gravel filter inlet main pipe I (9) and described sand gravel filter water inlet main pipe The junction of II (10) is provided with exhaust valve I (23). 4. A kind of centrifugal gravel net type manual backwash filter fertilization device as claimed in claim 1, is characterized in that: the top of described gravel filter I (3), gravel filter II (4) is respectively arranged There are two water inlet branch pipes connected to the sandstone filter inlet main pipe II (10) through the backwash pipe I (13) and the backwash pipe II (15) connected together by the backwash tee (14) (17), two exhaust valves II (26) are arranged between these two inlet branch pipes (17); Quartz sand (25), the bottom of which is respectively provided with a filter cap water collector (28). 5 . A centrifugal sand net type manual backwash filter fertilization device according to claim 4 , characterized in that: the bottom of the water inlet branch pipe ( 17 ) is provided with a water diversion plate ( 27 ). 6. A centrifugal sand net type manual backwash filter fertilization device as claimed in claim 1, characterized in that: the lower part of one side of the net filter body (5) is provided with a sewage discharge pressure relief valve (20) outfall (19).

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