CN201337844Y - Automatic brush type cleaning self-absorption filter - Google Patents

Abstract

The utility model discloses an automatic brush-type cleaning self-priming filter, which comprises a cylinder body, a filter cavity is arranged in the cylinder body and a water inlet cavity connected with the filter cavity is arranged at one end of the filter cavity, and a water inlet is arranged on the wall of the water inlet cavity. There is a filter screen in the filter chamber, a water outlet is provided on the wall of the filter chamber, a sewage collection and discharge chamber is provided at the other end of the filter chamber, a filter cleaning device is provided in the filter screen, and the filter cleaning device passes through the filter chamber and the sewage collection and discharge chamber Connect with the filter brush drive unit. This automatic brush cleaning self-priming filter follows the direction of the water flow, automatically cleans the filter screen, and removes the impurity particles from the filter through self-priming and water flow. Its structure is simple and compact, and it is easy to operate without affecting the filtration of the filter. Work, realize automatic cleaning and self-priming, low energy consumption.

Description

Automatic brush cleaning self-priming filter

technical field

The utility model belongs to water filter equipment, in particular to a water mechanical filter equipment capable of automatic cleaning.

Background technique

In recent years, a variety of mechanical filters with self-cleaning intelligence have not only been widely used in various industries, but also have become a cycle filter in various industries because of their advantages such as small size, convenient maintenance, automatic sewage discharge, and continuous water discharge during sewage discharge. It is an ideal equipment for online removal of particulate impurities in water systems and water supply systems.

This kind of filter cleans the filter screen by negative pressure, that is to say, when cleaning the filter screen, open the drain valve, so that the water pressure in the pipeline is greater than the air pressure, so that the water flows out from the inside of the machine. Since the water flows into the sewage chamber through the suction nozzle of the filter and the central dirt collection pipe during sewage discharge, and the suction nozzle is very close to the surface of the filter screen, therefore, under the action of water pressure, the impurities on the surface of the filter screen can enter with the water flow. The suction nozzle flows into the dirt collection pipe and then is discharged through the sewage outlet, forming a recoil suction mode. In this recoil suction method, since the suction nozzle on the dirt collection pipe moves in a spiral trajectory, the suction nozzle will clean the entire inner surface of the filter mesh body when sucking dirt, so as to achieve the best cleaning effect of the filter mesh body. Purpose.

The application of the above-mentioned filter is conditional, that is, before the water enters the filter, it must be pretreated to clean up the large impurity particles in the water. The impurity particles in the water should not be too large, and the particle size of the impurity particles in the water must be smaller than the distance between the suction nozzle and the surface of the filter screen, otherwise the impurity particles cannot be discharged, and finally the filter cannot work.

Contents of the invention

The purpose of this utility model is to provide a kind of water does not need to go through pretreatment, can filter directly, and can automatically clean the self-priming filter of automatic brush cleaning, in order to solve the above-mentioned problem.

The technical scheme of the utility model is: an automatic brush-type cleaning self-priming filter, which includes a cylinder, a filter chamber inside the cylinder, and a water inlet connected to the filter chamber at one end of the filter chamber, and a water inlet on the wall of the water inlet , the filter chamber is provided with a filter screen, the wall of the filter chamber is provided with a water outlet, the other end of the filter chamber is provided with a sewage collection and discharge chamber, the filter screen is provided with a filter cleaning device, and the filter cleaning device passes through the filter chamber and the sewage collection and discharge The cavity is connected with the filter screen cleaning brush driving device.

The filter screen cleaning device comprises a sewage discharge pipe shaft, filter screen cleaning brushes are arranged at intervals in the axial direction on the sewage discharge pipe shaft, a sewage discharge pipe is arranged axially inside the sewage discharge pipe shaft, a brush is provided on the end face of the filter screen cleaning brush, and a brush is provided on the end face of the filter screen cleaning brush. The sewage suction port is connected with the sewage discharge pipe of the sewage discharge pipe shaft.

The sewage discharge chamber includes a first sewage collection and discharge chamber connected with the filter chamber, a second sewage collection and discharge chamber separated from the first sewage collection and discharge chamber, and a sewage outlet is set on the wall of the first sewage collection and discharge chamber; A sewage outlet is provided on the cavity wall of the sewage collection and discharge chamber.

The sewage discharge pipe shaft in the sewage discharge chamber is connected with a sewage discharge motor.

This automatic brush cleaning self-priming filter automatically cleans the filter screen along the direction of water flow, and removes impurity particles out of the filter through self-priming and water flow. Its structure is simple and compact, and it is easy to operate without affecting the filter. Filter work, automatic cleaning and self-priming, low energy consumption.

Description of drawings

Figure 1 Schematic diagram of the structure of the automatic brush cleaning self-priming filter.

Fig. 2 Schematic diagram of the state of the automatic brush scanning self-priming filter completing sewage discharge.

Fig. 3 Outline drawing I of automatic brush cleaning self-priming filter.

Figure 4 Outline II of the automatic brush cleaning self-priming filter.

Fig. 5 filter screen cleaning brush schematic diagram I.

Fig. 6 Schematic diagram II of filter screen cleaning brush.

Fig. 7 is a schematic diagram of the wedge-shaped filter screen of the automatic brush cleaning self-priming filter machine.

Detailed ways

As shown in Figure 1, a filter chamber 21 is provided in the cylinder body 1, and one end of the filter chamber 21 is provided with a water inlet chamber 22 communicating with the filter chamber 21; the other end of the filter chamber 21 is provided with a sewage collection and discharge chamber, which includes a second A sewage collection and discharge chamber 16 and a second sewage collection and discharge chamber 11 . Filtration chamber 21 is made up of cylinder wall 30, two support dividing plates 3,8 that are arranged at intervals in the cylinder wall, offer water guide hole 31 on the two support dividing plates 3,8, two support dividing plate water guide holes 31 The filter screen 4 connected between constitutes, and the filter screen is a drum wedge shape (as shown in Figure 7); Water outlet 15 is established on the cylinder wall 30 of filter chamber 21. The water inlet chamber 22 is composed of a cylinder wall 30 , a supporting partition 3 and a cylinder flange cover 32 . A water inlet 13 is provided on the cylinder wall 30 of the water inlet chamber 22 . The first sewage collection and discharge chamber 16 is composed of a supporting partition 8, a partition 9 and a cylinder wall 30. The cylinder wall 30 of the first sewage collection and discharge chamber 16 is provided with a sewage outlet, and the sewage outlet is connected to the sewage valve 10; The sewage discharge chamber 11 is composed of a partition 9 , a cylinder wall 30 and a cylinder end cover 33 ; The first sewage collection and discharge chamber 16 communicates with the filter chamber 21 through the water guide hole 31 ; the first sewage collection and discharge chamber 16 and the second sewage collection and discharge chamber 11 are separated by a partition 9 .

The filter screen 4 is provided with a filter screen cleaning device, and the filter screen cleaning device passes through the filter chamber and the sewage collection and discharge chamber to be connected with the filter screen cleaning drive device. The driving device for cleaning the filter screen can be an oil cylinder, an air cylinder or other linear reciprocating mechanisms.

The filter screen cleaning device comprises a blowdown pipe shaft 7, the filter screen cleaning brush 6 is arranged at intervals in the axial direction on the blowdown pipe shaft 7, a blowdown pipe 34 is provided axially in the blowdown pipe shaft, a brush 38 is arranged on the end face of the filter pack cleaning brush, and the filter screen is cleaned. The end face of the brush 6 offers a sewage suction port 5, and the sewage suction port 5 communicates with the sewage pipe 34 of the sewage pipe shaft (as shown in Figures 5 and 6). Sewage pipe shaft 7 one end connects guide rod 2, and guide rod 2 is supported by support frame 14, and support frame 14 is located in water inlet cavity or establishes in the filter screen, and support frame 14 is connected with support dividing plate 3 in this example. The other end of the sewage pipe shaft 7 passes through the dividing plate 9 (the sewage pipe shaft 7 and the dividing plate 9 can be sealed) and is connected with the sewage discharge motor 17 .

The blowdown motor 17 includes a blowdown pipe 35 connected to the blowdown pipe shaft 7, the blowdown pipe 35 is arranged radially, the blowdown pipe 35 communicates with the blowdown pipe 34 of the blowdown pipe shaft 7, and two blowdown ports 36, 37 are provided on the upper and lower walls of the blowdown pipe , the axes of the sewage outlets 36 and 37 are perpendicular to the sewage pipe axis, and the directions of the upper and lower two sewage outlets are opposite.

The piston rod 18 of the hydraulic cylinder 12 connected to the end of the sewage pipe shaft 7 . The piston rod of the hydraulic cylinder passes through the end cover of the cylinder and is sealed with it.

As shown in Figures 3 and 4: an automatic control small unit 19 is installed outside the cylindrical body 1 . An inspection hole 20 is provided on the cylinder wall 30 of the second sewage collection and discharge chamber 11 .

Its working principle is: the raw water enters the cylinder 1 through the water inlet 13, and under the action of the supporting partition 3, the raw water flows into the filter 4, and after being filtered by the filter, the clean water flows out through the outlet 15, and the filter is attached to the the inner surface of the filter. When the filter hawthorn accumulates to a certain amount, the automatic control unit 19 starts the sewage discharge work: automatically opens the sewage valve 10 and the hydraulic cylinder 12, and the sewage pipe shaft 7 is under the action of the sewage discharge motor 17 (water flows from the sewage discharge motor 17 to the upper and lower two sewage discharge ports 36 , 37 ejected under the reaction force), began to rotate, and at the same time, under the action of the piston rod 18, the middle row began to make a translational movement, so that the middle row formed a spiral motion; at the same time, the sewage suction port 5 began to suck under the pressure. The fine filter haws on the filter screen are discharged through the sewage discharge pipe 34 of the sewage discharge pipe shaft 7, and then discharged to the sewage discharge motor, and then discharged from the filter hawthorns through the sewage discharge valve; at the same time, the L-shaped brush on the filter cleaning brush 6 is also scrubbing the surface of the filter screen , under the impetus of water, the coarse filter haw enters the filter haw collection chamber and is discharged through the drain valve. This size filter hawthorn is all discharged (as shown in Figure 2).

After the coarse and small filter hawthorns are all discharged, the automatic control unit 19 starts to stop the sewage discharge work: automatically closes the sewage valve 10 and resumes the work of the hydraulic cylinder 12, and the sewage pipe shaft 7 returns to the position shown in Figure 1 and enters a new one. The next round of filtering works.

Claims (10)

1. An automatic brush-type cleaning self-priming filter, which includes a cylinder body, a filter chamber in the cylinder body and a water inlet chamber connected to the filter chamber at one end of the filter chamber, and a water inlet on the wall of the water inlet chamber. A filter screen is provided, and a water outlet is provided on the wall of the filter chamber, which is characterized in that the other end of the filter chamber is provided with a sewage collection and discharge chamber, and a filter screen cleaning device is provided in the filter screen, and the filter screen cleaning device passes through the filter chamber and the sewage collection and discharge chamber Connect with the filter brush drive unit. 2. The automatic brush cleaning self-priming filter according to claim 1, characterized in that the filter screen cleaning device comprises a sewage pipe shaft, the filter cleaning brushes are arranged at intervals in the axial direction on the sewage pipe shaft, and the inner shaft of the sewage pipe shaft A sewage pipe is opened to the direction, a brush is set on the end face of the filter screen cleaning brush, and a sewage suction port is provided on the end face of the filter screen cleaning brush, and the sewage suction port is connected with the sewage pipe of the sewage pipe shaft. 3. The automatic brush cleaning self-priming filter according to claim 2, characterized in that the drive device for cleaning the filter includes a hydraulic cylinder or an air cylinder connected to the shaft end of the sewage pipe. 4. The automatic brush cleaning self-priming filter according to claim 1, characterized in that the sewage collection and discharge chamber includes a first sewage collection and discharge chamber connected with the filter chamber, and a second collection chamber separated from the first sewage collection and discharge chamber. In the sewage discharge chamber, a sewage outlet is provided on the cavity wall of the first sewage collection and discharge chamber; a sewage discharge port is provided on the cavity wall of the second sewage collection and discharge chamber. 5. The automatic brush cleaning self-priming filter according to claim 4, characterized in that the sewage discharge port of the first sewage collection and discharge chamber is connected with a sewage valve; the sewage discharge port of the second sewage collection and discharge chamber is connected with a sewage valve. 6. The automatic brush cleaning self-priming filter according to claim 2 or 4, characterized in that the sewage discharge pipe shaft in the second sewage collection and discharge chamber is connected to the sewage discharge motor. 7. The automatic brush cleaning self-priming filter according to claim 6, characterized in that the sewage discharge motor includes a sewage discharge pipe connected to the shaft of the sewage discharge pipe. The upper and lower pipe walls are provided with two sewage outlets, the axis of the sewage outlet is perpendicular to the sewage pipe axis, and the direction of the upper and lower two sewage outlets is opposite. 8. The automatic brush cleaning self-priming filter according to claim 1 or 4, characterized in that the filter cavity is composed of a cylinder wall, two support partitions arranged at intervals in the cylinder wall, and two support partitions The water guide hole is set up, and the filter screen connected between the water guide holes of the two support clapboards is composed of a barrel-shaped filter screen; the first sewage collection and discharge chamber is composed of the support clapboard, the clapboard and the cylinder wall; the second The sewage collection and discharge chamber is composed of a partition, a cylinder wall and a cylinder end cover. 9. The automatic brush cleaning self-priming filter according to claim 8, characterized in that one end of the sewage pipe shaft is connected to a guide rod, the guide rod is supported by a support frame, and the support frame is installed in the water inlet chamber or in the filter screen. 10. The automatic brush cleaning self-priming filter according to claim 9, characterized in that the other end of the sewage pipe shaft passes through the partition plate in the second sewage collection and discharge chamber, and the piston rod of the hydraulic cylinder or cylinder passes through the cylinder end Cover and seal with it, and connect with the sewage pipe shaft.

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