CN201760180U - Four inch centrifugal filter - Google Patents

Abstract

The utility model belongs to an industry and agricultural water conservation filter equipment especially a four cun centrifugation increases screen filter, including grit separator and the screen filter of establishing ties thereof. The sand-stone separator also comprises a sand setting tank, a sand-stone separator water inlet pipe, a sand discharge valve and a connecting pipe; the strainer has two filtering barrels with exhaust valves on the water inlet and outlet and water inlet and outlet pipes on the side and lower surfaces, which are connected in parallel through butterfly valve, the other side of the filtering barrel is respectively provided with a ball valve for sewage discharge, the lower part of each filtering barrel is welded with a filtering net seat ring and is provided with a seat ring water stop rubber ring, a 304L stainless steel is inserted in the seat ring, and a cylindrical filtering net is opened under the upper plug. In addition, a pressure gauge is respectively arranged at the top of the connecting pipe 20 and the water outlet of the water outlet pipe. An object of the utility model is to provide a four cun centrifugation increase net formula filters can realize manual water conservancy and wash the filter screen, needn't extract the net and brush with clear water and brush, and is efficient, and loss of head is little and energy-conserving, and management cost and low in labor strength.

Description

Four-inch centrifugal oversized mesh filter

technical field

The utility model belongs to industrial and agricultural water-saving filter devices, in particular to a four-inch centrifugal enlarged mesh filter

Background technique

At present, the industrial water treatment and water-saving irrigation that are being gradually promoted, such as water treatment and drip irrigation in waterworks, have relatively high water quality requirements for domestic water and irrigation water. Impurities and sediment in the water must be filtered out through filters in advance to prevent drip irrigation. With blockage and meet domestic water standards. The traditionally used filter is a sand filter or a manual cleaning screen filter. Under the same flow conditions, the gravel filter has a large volume, large head loss, and the power of the corresponding power equipment is large, which is uneconomical; the gravel filter used alone or in parallel must be equipped with a special cleaning pump. Stopping work or stopping one of the parallel connections will affect the normal operation of the system and reduce work efficiency. When the manual cleaning net filter used in single or parallel connection needs to be cleaned during the working process, the filter must stop working or stop one of the parallel connection, pull out the net and perform manual cleaning, which will affect the normal operation of the system and reduce the work efficiency. At present, the main service objects of the filter system are large users or contiguous concentrated users. The proportion of basic farmers with small and medium-sized areas in our district is not small. In the past, a few basic farmers concentrated on building water supply systems. The quality of users is not high. In terms of unified management of water supply, fertilization, maintenance, maintenance, water or electricity charges There are many disputes, which are difficult to deal with, resulting in unsatisfactory operation and management, the superiority of water-saving irrigation technology is not well reflected, and a series of problems such as slow popularization. the

Contents of the invention

The purpose of this utility model is to provide a four-inch centrifugal enlarged mesh filter, which can realize manual hydraulic cleaning of the filter mesh, without pulling out the mesh and cleaning it with clean water and a brush, high efficiency, energy saving due to small water head loss, and management The cost and labor intensity are low, and small and medium-sized users can establish independently managed water systems. the

The purpose of this utility model: a four-inch centrifugal enlarged mesh filter, including sand and gravel separator and its mesh filter connected in series. The sand and gravel separator is composed of a grit settling tank, a sand and gravel separator, a sand and gravel separator inlet pipe and a connecting pipe; the mesh filter has two filter barrels with an exhaust valve on the water inlet and outlet and its side , the water inlet and outlet pipes below; its feature is: the sand and gravel separator is connected in series with the connecting pipe at the front, and the rear part is the side of the filter barrel, and the lower inlet and outlet are each connected in parallel with a horizontal inlet and outlet pipe through a butterfly valve soft connection. A sewage outlet with a ball valve is set up on the other side of the filter barrel, and a 304L stainless steel cylindrical filter net with top blocking and bottom opening is installed in each filter barrel. In addition, install a pressure gauge at the top of the connecting pipe and at the water outlet of the water outlet pipe. the

The working principle of the utility model is: the water to be treated tangentially flows into the inner side of the sand separator to generate a swirling flow, and the particles in the water are close to the inner wall under the action of the centrifugal force generated by the swirling flow, and sink into the grit settling tank under the action of gravity. For clean water, the center of the sand and gravel separator rises to achieve the purpose of water and sand separation; the water that has just completed the first stage of filtration enters the filter chamber of the filter bucket from the water inlet of the mesh filter to start the second stage of filtration, when the water containing impurities passes through the filter When the outer wall enters and flows out from the inner wall of the filter screen, the impurities are attached to the outer wall of the filter screen, and the clean water flows out from the inner wall of the filter screen, passes through its lower opening, and flows into the outlet pipe through the outlet of the filter barrel for use. When there is a lot of dirt attached to the outer wall, the pressure gauge at the inlet and outlet of the filter will display a certain pressure difference. When the pressure difference reaches the expected value, the sewage discharge work must be carried out; the method is to close one of the water inlet valves in the parallel filter channel and open the other Sewage valve, at this time, part of the clean water filtered out by other filters flows back into the filter screen to be discharged, and flows out from the inner wall of the screen to the outer wall of the screen, forcing the dirt adsorbed on the outer wall of the screen to leave, and is discharged from the bucket from the sewage outlet , carry out backwashing, after seeing clear water, close its drain valve and open the water inlet valve to make it enter the normal working state; then carry out backwashing work on the next filter barrel, the method is the same as above. The utility model has a good effect of manual hydraulic backwashing, does not need a hand brush to clean the filtering net, has small water head loss, good energy-saving effect, convenient and quick cleaning, low management cost and labor intensity, and small-scale users can establish independently managed water systems, reflecting energy saving. The superiority of water irrigation technology makes water-saving irrigation appear as energy-saving irrigation and accelerates its popularization rate in local areas. the

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing. the

Fig. 1 is a schematic diagram of a front view of the utility model; Fig. 2 is a schematic diagram of a side view of Fig. 1 . the

Detailed ways

A kind of four-inch centrifugal enlarged net type filter, as shown in Figure 1 and Figure 2, 1-filter poke out water valve; 2-filter poke water inlet valve; 3-filter bucket drain valve; Filter barrel; 6-filter barrel cover; 7-exhaust valve; 8-water inlet; 9-water inlet pressure gauge; 10-water outlet pressure gauge; 11-water inlet; 12-water inlet pipe; 13-water outlet pipe; 14-filter screen; 15-filter bucket water inlet; 16-filter bucket water outlet; 17-filter screen seat ring; 18-seat ring water-stop rubber ring; 19-mesh filter water inlet valve; 21-connecting pipe exhaust valve; 22-sand separator inlet pipe; 23-sand separator; 24-settling tank; 25-sand discharge valve, including sand separator 23 and its series-connected mesh filter 26. The sand-stone separator 23 is also composed of a grit settling tank 24, a sand-stone separator water inlet pipe 22, a sand discharge valve 25 and a connecting pipe 20; The filter bucket 5 of the valve 7 and its side, the lower water inlet pipe 12, and the water outlet pipe 13 are connected in parallel through the soft connection of the butterfly valve 2 and 1, and a ball valve 3 is set on the other side of the filter bucket 5, and the manual water cleaning method is used instead of pulling out the net and brushing. To improve the cleaning method of the filter screen for fast sewage discharge, the filter screen seat ring 17 is welded in the lower part of each filter bucket 5 and the seat ring water-stop rubber ring 18 is installed, and a 304L stainless steel filter screen is inserted, with the upper block and the lower open cylindrical filter screen 14. In addition, a pressure gauge 10,9 is respectively installed at the water outlet 8 of the top of the connecting pipe 20 and the water outlet pipe 13. the

The connecting pipe (20) of the sand-stone separator is connected with the water inlet (11) of the mesh filter (26) to realize series connection. A drain valve (3) is respectively set up on the front side of the filtering bucket (5). The filter screen (14) is a filter mesh of 60, 80, 100, 120, 304L stainless steel, a cylindrical filter screen (14) with a height of 500mm and a diameter of 75mm, and the total number is six. Each filter barrel (5) has a butterfly valve (2) and a butterfly valve (1) on the water inlet (15) and water outlet (16); it is softly connected to the water inlet pipe (12) and the water outlet pipe (13) on its side and below . The side of filter barrel (5) water inlet (15) and water outlet (16), below are connected with horizontal water inlet pipe (12), water outlet pipe (13). the

Claims (6)

1. four cun centrifugal increasing well strainers comprise the well strainer (26) of sandstone separator (23) and its series connection, and sandstone separator (23) is also by mud settling tank (24), sandstone separator water inlet pipe (22), and sand flash valve (25) and tube connector (20) are formed; It is characterized in that: well strainer has two filter vat (5) and its sides of going up band air bleeding valve (7) of water inlet (15) and delivery port (16), following water inlet pipe (12), outlet pipe (13) is by butterfly valve (2), (1) be flexible coupling realize in parallel, a blowoff valve (3) is respectively set up in filter vat (5) another side, the interior Lower Half of each filter vat (5) is welded with screen pack seat ring (17), go up the 304L stainless steel of inserting three band water stop gel rings (18), open cylindrical screen pack (14) under upward stifled, the delivery port (8) of tube connector (20) top and outlet pipe (13) locates respectively to install a Pressure gauge (10) in addition, (9).

2. four cun centrifugal increasing well strainers according to claim 1 is characterized in that: the tube connector of sandstone separator (20) is connected with the water inlet (11) of well strainer (26) realizes series connection.

3. four cun centrifugal increasing well strainers according to claim 1 is characterized in that: a blowoff valve (3) is respectively set up in the last side of filter vat (5).

4. four cun centrifugal increasing well strainers according to claim 1 is characterized in that: screen pack (14) is to filter order several 60,80,100,120, and 304L is stainless, the cylindrical screen pack (14) of high 500mm, diameter 75mm, and total quantity is six.

5. four cun centrifugal increasing well strainers according to claim 1 is characterized in that: all be with butterfly valve (2) and butterfly valve (1) on each filter vat (5) water inlet (15) and the delivery port (16); Realize being flexible coupling with its side, following water inlet pipe (12), outlet pipe (13).

6. four cun centrifugal increasing well strainers according to claim 1 is characterized in that: the side of filter vat (5) water inlet (15) and delivery port (16), below be connected with horizontal water inlet pipe (12), outlet pipe (13).

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