CN222196255U - Multi-sand centrifugal double-net full-automatic back flushing filter - Google Patents

Abstract

The utility model relates to the field of water purification treatment, in particular to a multi-sand centrifugal double-net full-automatic back flushing filter. Through the dual function of centrifugation and double-mesh filter, the quality of water of processing many sand that can be better, when the pressure in one of them grit filter cavity increases, control corresponds first butt clamp electric butterfly valve and closes, restart corresponding second butt clamp electric butterfly valve, form pressure differential in the inside two cavities of grit filter, water is through the inside outside infiltration of filter core to the grit filter cavity that needs back flush, make filter core surface adsorption's grit and impurity break away from, sewage is discharged through the blow off pipe that corresponds, and another grit filter cavity is continuous to filter water, thereby reach the purpose that does not shut down the automatic sand removal to the filter.

Description

Multi-sand centrifugal double-net full-automatic back flushing filter

Technical Field

The utility model relates to the field of water purification treatment, in particular to a multi-sand centrifugal double-net full-automatic back flushing filter.

Background

The well water resource is used as the local water and an important source of an agricultural irrigation system in the area, is the basis of economic development, and is prepared for water saving, water storage and water regulation work for agriculture, pasture and aquaculture in the arid area so as to realize the sustainable development of the water resource, wherein clean filtration of the water source is an essential link of water saving, the key of maintaining the continuous utilization of the water resource and reducing the water cost, and the water saving work is related to the global situation.

At present, a conventional well water filter in the market mainly comprises a centrifugal technology and a manual net type filter combination, has the advantages of simple structure, simplicity in operation, high filtering efficiency and low cost, is deeply favored by a market main body, but has certain defects, and particularly, the sand is required to be manually discharged at regular time, and especially, a plurality of sand well water can cause frequent sand discharge.

Therefore, a multi-sand centrifugal double-net full-automatic backwashing filter which can adapt to a flat sand or multi-sand environment needs to be provided.

Disclosure of utility model

In order to overcome the defects that the conventional well water filter is troublesome in sand removal by stopping and manually cleaning the net core, the labor intensity of operators is increased, and the continuity and efficiency of work are affected, the utility model provides a multi-sand centrifugal double-net full-automatic back flushing filter which can adapt to a flat sand or multi-sand environment.

The utility model has the technical scheme that the device main body consists of a centrifugal filter device, a conveying device, a double-net filter device and a back flushing device, wherein the conveying device is used for communicating the centrifugal filter device with the double-net filter device, sediment and sand in a water body in a well are firstly removed by the centrifugal filter device in a first stage, then the sediment and sand in the water body in the well are input into the double-net filter device by the conveying device to complete the impurity and residual sand removal operation in a second stage, and the back flushing device for automatically discharging and discharging the sediment is arranged on the double-net filter device.

Further, the centrifugal filter device comprises a well water pipe, a well water delivery pipe, a check valve, a centrifugal machine, a sand discharge tank, a sand discharge electromagnetic valve and a first support, wherein the well water pipe is in butt joint with the well water delivery pipe through a joint, the other end of the well water delivery pipe is communicated with the centrifugal machine, the check valve is arranged at one end, close to the centrifugal machine, of the well water delivery pipe, the water body is controlled to flow through the check valve, the bottom end of the centrifugal machine is communicated with the sand discharge tank, sediment separated by the centrifugal machine is collected through the sand discharge tank, the sand discharge tank is supported and fixed by the first support, and the sand discharge electromagnetic valve is arranged at one side of the sand discharge tank.

Further, the double-net filter device comprises a sand filter, a second support, a filter element, a partition plate, a drain pipe and a second butt clamp electric butterfly valve, wherein the centrifugal machine is connected and communicated with the sand filter through a conveying device, a water outlet is formed in one side of the sand filter, the sand filter is fixedly supported by the second support, the filter element is arranged inside the sand filter, the filter element is communicated with the water outlet of the sand filter, the partition plate is arranged in the middle of the sand filter, the partition plate divides the inside of the sand filter into a left cavity and a right cavity, the filter element penetrates through the partition plate, two drain pipes are arranged at the bottom of the sand filter, the tail ends of the two drain pipes are communicated, and the second butt clamp electric butterfly valve is arranged on the drain pipes.

Further, conveyor includes connecting pipe, fire control clamp, disk seat, discharge valve, manometer base and shock-resistant manometer, and centrifuge passes through connecting pipe and grit filter intercommunication, and the connecting pipe passes through the fire control clamp to be fixed on the grit filter, is provided with two ends of intaking between connecting pipe and the grit filter, installs disk seat and manometer base on the connecting pipe, installs discharge valve on the disk seat, installs shock-resistant manometer on the manometer base.

Further, the back flushing device comprises a first pair of clamping electric butterfly valves and bypass pipes, the first pair of clamping electric butterfly valves are arranged at two water inlet ends of the connecting pipe, and the two water inlet ends of the connecting pipe are connected and communicated with the two sewage pipes through the two bypass pipes.

Further, the electronic pressure gauge and the gas relief valve are further included, two electronic pressure gauges are installed on the sand filter and are respectively communicated with two cavities of the sand filter, two gas relief valves are installed on the sand filter and are respectively communicated with two cavities of the sand filter, and the two electronic pressure gauges are respectively connected with two second butt-clamp electric butterfly valve signals.

Further, the sand filter further comprises a cleaning valve cover, and two cleaning valve covers are arranged on the sand filter.

Further, the sand filter also comprises a 304 stainless steel net core, and the water outlet of the sand filter is provided with the 304 stainless steel net core.

Further, a fertilizing opening is arranged on the connecting pipe.

Further, the sand discharge tank further comprises guide plates, and two guide plates are arranged in the sand discharge tank.

The sand filter has the beneficial effects that the water quality of multiple sand can be better treated through the dual functions of the centrifugation and the double-net filter, when the pressure in one sand filter cavity is increased, the corresponding first butt-clamp electric butterfly valve is controlled to be closed, the corresponding second butt-clamp electric butterfly valve is started, the pressure difference is formed in the two cavities inside the sand filter, water permeates into the sand filter cavity needing back flushing from the inside to the outside through the filter core, sand and impurities adsorbed on the surface of the filter core are separated, sewage is discharged through the corresponding sewage discharge pipe, and the other sand filter cavity continuously filters the water, so that the purpose of automatically removing the sand of the filter without stopping is achieved.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

FIG. 2 is a schematic perspective sectional structure of the sand discharging electromagnetic valve and the centrifugal machine.

FIG. 3 is a schematic perspective view of the connecting tube, the exhaust valve and the shock-resistant pressure gauge of the present utility model.

FIG. 4 is a schematic perspective view of the sand filter, pressure gauge and exhaust pipe of the present utility model.

FIG. 5 is a schematic perspective view of a bypass pipe and a drain pipe according to the present utility model.

Fig. 6 is a schematic perspective cross-sectional view of the 304 stainless steel mesh core, filter element and separator of the present utility model.

The reference numerals comprise a 1-well water pipe, a 2-sand discharge electromagnetic valve, a 3-well water pipe, a 301-connecting pipe, a 4-check valve, a 5-centrifuge, a 501-sand discharge tank, a 502-first bracket, a 503-guide plate, a 6-fire-fighting clamp, a 7-valve seat, an 8-exhaust valve, a 9-pressure gauge base, a 10-vibration-resistant pressure gauge, an 11-fertilization port, a 12-first pair of clamping electric butterfly valves, a 13-304 stainless steel net core, a 14-second pair of clamping electric butterfly valves, a 1401-bypass pipe, a 1402-blow-down pipe, a 15-sand filter, a 1501-water outlet, a 1502-second bracket, a 1503-cleaning valve cover, a 16-electronic pressure gauge, a 17-gas pressure relief valve, an 18-filter core and a 19-partition board.

Detailed Description

The utility model is described in detail below with reference to the drawings and the specific embodiments.

Embodiment referring to fig. 1-6, the present utility model provides a technical solution:

The main body of the device consists of a centrifugal filter device, a conveying device, a double-net filter device and a back flushing device, wherein the conveying device is used for communicating the centrifugal filter device with the double-net filter device, sediment and sand in a water body in a well are removed by the centrifugal filter device at a first stage, impurities and residual sand in a second stage are removed by the conveying device which is input into the double-net filter device, and the back flushing device for automatically discharging sewage and discharging sand is arranged on the double-net filter device.

Referring to fig. 1 and 2, the centrifugal filter device comprises a well water pipe 1, a well water delivery pipe 3, a check valve 4, a centrifugal machine 5, a sand discharge tank 501, a sand discharge electromagnetic valve 2 and a first bracket 502, wherein the top of the well water pipe 1 is in butt joint with the well water delivery pipe 3 through a flange joint, the other end of the well water delivery pipe 3 is communicated with the centrifugal machine 5, the check valve 4 is arranged at one end of the well water delivery pipe 3, which is close to the centrifugal machine 5, the flow of water is controlled by the check valve 4, the bottom end of the centrifugal machine 5 is communicated with the sand discharge tank 501, two guide plates 503 are arranged in the bottom of the sand discharge tank 501, the two guide plates 503 enable the internal sand to be gathered towards the middle of the bottom, the sand is conveniently discharged, the sand separated by the centrifugal machine 5 is collected by the sand discharge tank 501, and the sand discharge tank 501 is supported and fixed by the first bracket 502, and the sand discharge electromagnetic valve 2 is arranged at one side of the sand discharge tank 501.

Referring to fig. 4-6, the dual-mesh filtering device comprises a sand filter 15, a second bracket 1502, a filter element 18, a partition 19 and a drain pipe 1402, wherein the centrifuge 5 is connected and communicated with the sand filter 15 through a conveying device, a purified water outlet 1501 is formed in the right side of the sand filter 15, a 304 stainless steel mesh 13,304 stainless steel mesh 13 is arranged on the water outlet 1501 of the sand filter 15 and is used for isolating the water outlet 1501 so as to isolate unfiltered impurities, the sand filter 15 is fixedly supported by the second bracket 1502, two cleaning valve covers 1503 are arranged on the sand filter 15, the two chambers of the sand filter 15 can be cleaned and maintained by opening the two cleaning valve covers 1503, the filter element 18 is arranged inside the sand filter 15 and is communicated with the water outlet 1501 of the sand filter 15, the partition 19 is arranged in the middle of the inside of the sand filter 15, the partition 1402 divides the inside of the sand filter 15 into a left chamber and a right chamber, the filter element 18 penetrates through the partition 19, two drain pipes are arranged at the bottom of the sand filter 15, one ends of the two drain pipes 1402 far away from the sand filter 15 are communicated with the drain pipe 1402, and the second butterfly valve 14 is arranged on the drain pipe 1402.

Referring to fig. 1 and 3, the conveying device comprises a connecting pipe 301, a fire-fighting clamp 6, a valve seat 7, an exhaust valve 8, a pressure gauge base 9 and a shock-resistant pressure gauge 10, wherein a centrifugal machine 5 is communicated with a sand filter 15 through the connecting pipe 301, the connecting pipe 301 is fixed on the sand filter 15 through the fire-fighting clamp 6, two water inlet ends are arranged between the connecting pipe 301 and the sand filter 15, a fertilization port 11 is formed in the connecting pipe 301, fertilizer liquid is added into the connecting pipe 301 through the fertilization port 11, the valve seat 7 and the pressure gauge base 9 are mounted on the connecting pipe 301, the exhaust valve 8 is mounted on the valve seat 7 in a bolt connection mode, gas in the connecting pipe 301 can be exhausted through opening the exhaust valve 8, the shock-resistant pressure gauge 10 is mounted on the pressure gauge base 9 in a bolt connection mode, the shock-resistant pressure gauge 10 is communicated with the connecting pipe 301, and the shock-resistant pressure gauge 10 is used for detecting water pressure in the connecting pipe 301.

Referring to fig. 1-6, the back flushing device includes a first electric butterfly valve 12 and a bypass pipe 1401, the two water inlet ends of the connecting pipe 301 are both provided with the first electric butterfly valve 12, the two water inlet ends of the connecting pipe 301 are connected and communicated with the two sewage pipes 1402 through the two bypass pipes 1401, and the bypass pipe 1401 is used for emergency water supply.

Referring to fig. 1, 4 and 5, the electronic pressure gauge 16 and the gas pressure release valve 17 are further included, two electronic pressure gauges 16 are installed on the sand filter 15 in a bolt connection mode, the two electronic pressure gauges 16 are respectively communicated with two chambers of the sand filter 15, the two electronic pressure gauges 16 respectively monitor the liquid pressure in the two chambers of the sand filter 15, the two gas pressure release valves 17 are installed on the sand filter 15, the gas pressure release valves 17 are respectively communicated with the two chambers of the sand filter 15, and the two electronic pressure gauges 16 are respectively connected with two second butt clamp electric butterfly valves 14 in a signal mode.

In the well water filtering stage, the well water pipe 1 is inserted into the concave well water, the first pair of clamping electric butterfly valves 12 are opened at the same time, then the check valve 4 is opened, water in the well enters the centrifugal machine 5 from the well water delivery pipe 3, sediment, sand and stone are separated from the water under the centrifugal action of the centrifugal machine 5 due to different sand water densities, clear water with low density rises and is discharged from the connecting pipe 301, sediment and impurities sink into the sand discharge tank 501, and the water after the sand removal in the first stage enters into the left cavity and the right cavity in the sand filter 15 through the two water inlet ends of the connecting pipe 301.

And in the filter screen sand discharging stage, after the water body subjected to the sand removal in the first stage enters the left and right chambers inside the sand filter 15 through the two water inlet ends of the connecting pipe 301, along with the increase of the internal pressure of the sand filter 15, the water body subjected to the sand removal in the first stage permeates into the filter element 18 from the outside, so that the filter element 18 carries out secondary filtration on the water body, impurities and sediment in the water are further filtered, and the water subjected to the secondary filtration is discharged through the water outlet 1501.

During the back flushing stage, when a great amount of sediment and sewage are attached to the outside of the filter element 18, and the filtering efficiency of the filter element 18 is reduced, the electronic pressure gauge 16 detects that the pressure in the cavity of the sand filter 15 is increased, at the moment, the filter element 18 needs to be back flushed, the electronic pressure firstly controls the first pair of electric butterfly valves 12 corresponding to the cavity of the sand filter 15 with reduced filtering efficiency to be closed, so that the water subjected to the first stage sand removal does not enter the cavity of the sand filter 15 needing back flushing, the corresponding second pair of electric butterfly valves 14 are started, the sand filter 15 at the other side does not need back flushing, at the moment, the two cavities inside the sand filter 15 form pressure difference, the water permeates outwards into the cavity of the sand filter 15 needing back flushing from the inside through the filter element 18, so that the sand and impurities adsorbed on the surface of the filter element 18 are separated, and the sewage is discharged through the corresponding drain pipe 1402, and the purpose of removing the sand of the filter is achieved, meanwhile, the other cavity of the sand filter 15 continuously filters the water, the operation is repeated, and the purpose of automatically removing the sand is achieved, and the automatic sewage is automatically discharged, and the electric butterfly valve 14 is closed, or the electric butterfly valve 14 is closed at the same time, and the corresponding to the first pair of electric butterfly valve 14, and the electric butterfly valve 14 is set to the time, and the electric butterfly valve 14 is closed, and the electric butterfly valve is closed, and the time automatically, and the time is closed.

Initially, water enters two chambers of the sand filter 15, so that the air pressure in the two chambers of the sand filter 15 is increased, and when the air pressure in the chambers of the sand filter 15 reaches a certain value, the air pressure relief valve 17 is opened, so that the air in the chambers of the filter is discharged, and the purpose of pressure relief is achieved.

It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the utility model in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the utility model.

Claims (10)

1. The multi-sand centrifugal double-net full-automatic back flushing filter is characterized in that the device main body consists of a centrifugal filter device, a conveying device, a double-net filter device and a back flushing device, the conveying device is used for communicating the centrifugal filter device with the double-net filter device, sediment and sand in a well are removed through the centrifugal filter device, the conveying device is used for inputting the double-net filter device to complete the second-stage impurity and residual sand removal operation, and the double-net filter device is provided with the back flushing device for automatically discharging and discharging sand.

2. The multi-sand centrifugal double-net full-automatic back flushing filter according to claim 1, wherein the centrifugal filtering device comprises a well water pipe (1), a well water delivery pipe (3), a check valve (4), a centrifugal machine (5), a sand discharge tank (501), a sand discharge electromagnetic valve (2) and a first bracket (502), the well water pipe (1) is in butt joint with the well water delivery pipe (3) through a joint, the other end of the well water delivery pipe (3) is communicated with the centrifugal machine (5), the check valve (4) is arranged at one end, close to the centrifugal machine (5), of the well water delivery pipe (3), water flow is controlled through the check valve (4), the bottom end of the centrifugal machine (5) is communicated with the sand discharge tank (501), sediment separated by the centrifugal machine (5) is collected through the sand discharge tank (501), the sand discharge tank (501) is supported and fixed by the first bracket (502), and the sand discharge electromagnetic valve (2) is arranged at one side of the sand discharge tank (501).

3. The multi-sand centrifugal double-net full-automatic backwash filter of claim 2, wherein the double-net filter device comprises a sand filter (15), a second bracket (1502), a filter element (18), a partition plate (19), a drain pipe (1402) and a second butt clamp electric butterfly valve (14), the centrifugal machine (5) is connected and communicated with the sand filter (15) through a conveying device, a water outlet (1501) is formed in one side of the sand filter (15), the sand filter (15) is fixedly supported by the second bracket (1502), the filter element (18) is arranged in the sand filter (15), the filter element (18) is communicated with the water outlet (1501) of the sand filter (15), a partition plate (19) is arranged in the middle of the sand filter (15), the partition plate (19) divides the inner part of the sand filter (15) into a left cavity and a right cavity, the filter element (18) penetrates through the partition plate (19), two drain pipes (1402) are arranged at the bottom of the sand filter (15), the two drain pipes (1402) are communicated with each other at the tail ends, and the second butt clamp electric butterfly valve (14) is arranged on the drain pipe (1402).

4. The multi-sand centrifugal double-net full-automatic backwashing filter of claim 1, wherein the conveying device comprises a connecting pipe (301), a fire-fighting clamp (6), a valve seat (7), an exhaust valve (8), a pressure gauge base (9) and a shock-resistant pressure gauge (10), the centrifugal machine (5) is communicated with the sand filter (15) through the connecting pipe (301), the connecting pipe (301) is fixed on the sand filter (15) through the fire-fighting clamp (6), two water inlet ends are arranged between the connecting pipe (301) and the sand filter (15), the valve seat (7) and the pressure gauge base (9) are arranged on the connecting pipe (301), the exhaust valve (8) is arranged on the valve seat (7), and the shock-resistant pressure gauge (10) is arranged on the pressure gauge base (9).

5. The multi-sand centrifugal double-net full-automatic back flushing filter according to claim 4, wherein the back flushing device comprises a first pair of clamping electric butterfly valves (12) and a bypass pipe (1401), the first pair of clamping electric butterfly valves (12) are arranged at two water inlet ends of the connecting pipe (301), and the two water inlet ends of the connecting pipe (301) are connected and communicated with the two sewage pipes (1402) through the two bypass pipes (1401).

6. The multi-sand centrifugal double-net full-automatic backwashing filter of claim 3, further comprising an electronic pressure gauge (16) and a gas pressure relief valve (17), wherein the sand filter (15) is provided with two electronic pressure gauges (16), the two electronic pressure gauges (16) are respectively communicated with two chambers of the sand filter (15), the sand filter (15) is provided with two gas pressure relief valves (17), the gas pressure relief valves (17) are respectively communicated with the two chambers of the sand filter (15), and the two electronic pressure gauges (16) are respectively connected with two second butt-clamp electric butterfly valves (14) in a signal mode.

7. The multi-sand centrifugal double-net full-automatic back flushing filter according to claim 3, further comprising a cleaning valve cover (1503), wherein two cleaning valve covers (1503) are arranged on the sand filter (15).

8. The multi-sand centrifugal double-net full-automatic back flushing filter according to claim 3, further comprising a 304 stainless steel net core (13), wherein the 304 stainless steel net core (13) is arranged on the water outlet (1501) of the sand filter (15).

9. The multi-sand centrifugal double-net full-automatic back flushing filter according to claim 4, wherein the connecting pipe (301) is provided with a fertilizing opening (11).

10. The multi-sand centrifugal double-net full-automatic back flushing filter according to claim 2, further comprising guide plates (503), wherein two guide plates (503) are installed inside the sand discharge tank (501).