CN201760178U - Two parallel four inch enlarged combination screen filter - Google Patents

Abstract

The utility model belongs to an industrial and agricultural water-saving filter device, in particular to a two-parallel-connection four-inch enlarged combined screen filter, two filter barrels with exhaust valves on the upper part and with a water inlet and a water outlet on the lower part are connected in parallel by the flexible connection of a butterfly valve, and the other side of each filter barrel is respectively provided with a drain valve; the lower part in each filter vat is welded with a filter screen seat ring plate, three 304L stainless steels with seat ring water stop rubber rings are inserted, and a cylindrical filter screen is opened under the upper plug. In addition, a pressure gauge is respectively arranged at the water inlet of the water inlet pipe and the water outlet of the water outlet pipe. An object of the utility model is to provide a two parallelly connected four cun increase combination 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

Two-parallel four-inch enlarged combined mesh filter

technical field

The utility model belongs to industrial and agricultural water-saving filtering devices, in particular to a two-parallel four-inch enlarged combined net filter. the

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 and a large water 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. When cleaning, the filter must be stopped. Working 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 relatively large. In the past, a few or dozens of basic farmers concentrated on building water supply systems, and the quality of users was not high. There were many disputes in water supply, fertilization, maintenance, maintenance, and unified management of water or electricity bills, which were difficult to deal with. Leading to 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 two-parallel four-inch enlarged combined screen filter, which can realize manual hydraulic cleaning of the filter screen, without pulling out the screen and cleaning it with clean water and a brush, with high efficiency and energy saving due to small water head loss , low management fees and labor intensity, small and medium-sized users can establish independently managed water systems. the

The purpose of this utility model: a two-parallel four-inch enlarged combined mesh filter, including two filter buckets with exhaust valves on the top and side and bottom water inlet and outlet pipes with water inlets and outlets ; Its characteristics are: the side of the filter barrel, the bottom inlet, and the outlet each use a horizontal inlet and outlet pipe to realize parallel connection through a butterfly valve soft connection, and a sewage valve is set up on the other side of the filter barrel, and four 304L pipes are installed in each filter barrel Stainless steel, cylindrical filter with upper plug and lower opening. In addition, a pressure gauge is installed at the water inlet of the water inlet pipe and the water outlet of the water outlet pipe to cooperate with the sewage discharge work. the

The working principle of the utility model is: when the water containing impurities enters the filter chamber of the filter barrel from the water inlet, and the water containing impurities enters from the outer wall of the filter screen and flows out from the inner wall of the filter screen, the impurities are attached to the outer wall of the filter screen. Clean water flows out from the inner wall of the filter screen, passes through its lower opening, and flows into the water outlet pipe through the water outlet of the filter barrel for utilization. When there is a lot of dirt attached to the outer wall, the pressure gauge at the inlet and outlet of the filter will show 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 network and open its sewage discharge At this time, part of the clean water filtered out by other nets flows back into the filter net to be discharged, and flows out from the inner wall of the net to the outer wall of the net, forcing the dirt adsorbed on the outer wall of the net to leave, and is discharged from the sewage outlet out of the bucket, For backwashing, after seeing clear water, close the drain valve and open the water inlet valve to make it enter the normal working state; then backwash 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 two-parallel four-inch enlarged combined net filter, as shown in Figure 1 and Figure 2, 1-filter poke outlet valve; 2-filter poke water inlet valve; 3-filter barrel drain valve; 4-retreat shelf; 5-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-outlet Water 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; The two filter barrels 5 with exhaust valves 7 on the water inlet 15 and the water outlet 16 and the water inlet pipe 12 and the water outlet pipe 13 on the side and the bottom of the water inlet 15 and the water outlet 16 are connected in parallel through the flexible connection of the butterfly valve 2, and the other side of the filter barrel 5 is respectively set up. Sewage valve 3, using manual hydraulic cleaning method instead of pulling out the net brushing method, improving the cleaning method of the filter screen for quick sewage discharge, welding the filter screen seat ring plate 17 in the lower part of each filter bucket 5, and inserting a seat ring water-stop glue Four 304L stainless steels of circle 18, block up and open cylindrical filter screen 14 at the bottom. In addition, a pressure gauge 10,9 is respectively installed at the water inlet 11 of the water inlet pipe 12 and the water outlet 8 places of the water outlet pipe 13 to cooperate with the blowdown work. the

The filter screen (14) is the filter mesh number 60,80,100,120, 304L stainless steel, high 500mm, cylindrical filter screen (14) with a diameter of 75mm, and the total number is six. A drain valve (3) is respectively set up on the front side of the filtering bucket (5). 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). All have exhaust valve (7) on each filter barrel (5). the

Claims (6)

1. one kind two four cun in parallel are strengthened the combination well strainer, comprise have water inlet (15) and delivery port (16) two filter vats (5) of going up band air bleeding valves (7) and its side, following water inlet pipe (12), outlet pipe (13), it is characterized in that: filter vat is flexible coupling by butterfly valve (2), (1) and realizes parallel connection, and a blowoff valve (3) is respectively set up in filter vat (5) another side; Each filter vat (5) interior bottom welding screen pack seat ring (17) also is equipped with the stainless stifled cylindrical screen pack of opening down (14) of three 304L of usheing to seat and encircling water stop gel ring (18), and the delivery port (8) of the water inlet (11) of water inlet pipe (15) and outlet pipe (13) locates respectively to install a Pressure gauge (10) in addition.

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

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

4. according to claim 1 two four cun increasing combination well strainers in parallel 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).

5. according to claim 1 two four cun in parallel strengthen the combination well strainers, it 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).

6. according to claim 1 two four cun increasing combination well strainers in parallel is characterized in that: all have air bleeding valve (7) on each filter vat (5).

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