CN219681861U - Electromagnetic pilot-controlled backwash filter - Google Patents

Abstract

The utility model provides an electromagnetism pilot control's back flush filter, including the filter body, the electromagnetism pilot valve body, two slide cores and two filter cores, the filter body is equipped with the inlet, liquid outlet and drain, be equipped with two fluid channel between inlet and the liquid outlet, every fluid channel all sets up a filter core and a slide core, the filter core is located the filter chamber that fluid channel was equipped with, the filter chamber is equipped with first tributary channel and second tributary channel respectively, the slide core traversals at first tributary channel and second tributary channel, the spring that the slide core was equipped with, the slide core action is more quick, stable and impurity also is difficult to pile up in slide core department, promote slide core action efficiency and life-span.

Description

Electromagnetic pilot-controlled backwash filter

Technical Field

The utility model relates to the technical field of filters, in particular to an electromagnetic pilot-controlled backwash filter.

Background

At present, a back flushing filter is a filter which can maintain the filtering effect more efficiently by utilizing a back flushing principle, the back flushing state is switched by utilizing the action of a control valve, and the existing back flushing filter also has the problems that the action is difficult, the deviation and the impurities are easy to accumulate at a valve core due to the fact that the valve core of the control valve is easily influenced by liquid flow impact.

Disclosure of Invention

In order to solve the problems, the utility model provides an electromagnetic pilot control backwash filter, which comprises: the utility model provides an electromagnetism pilot control's back flush filter, includes filter body, electromagnetism pilot valve body, two slide cores and two filter cores, and the filter body is equipped with inlet, liquid outlet and drain, is equipped with two liquid flow channel between inlet and the liquid outlet, every liquid flow channel all sets up a filter core and a slide core, the filter core is located the filter chamber that liquid flow channel was equipped with, the filter chamber is equipped with the intercommunication respectively the inlet with the first tributary channel and the second tributary channel of drain, just first tributary channel and second tributary channel are equipped with into liquid valve port and blowdown valve port respectively, the slide core transversely is in first tributary channel and second tributary channel, just slide core both ends are equipped with respectively and are used for sealing the first shutoff portion and the second shutoff portion of income liquid valve port and blowdown valve port, the slide core seals through the spring that is equipped with the blowdown valve port is opened the income liquid valve port, electromagnetism pilot valve body is used for controlling the slide core opens the blowdown valve port and is gone into the liquid valve port.

Preferably, the filter body is equipped with the installation cavity in every the liquid flow channel, just the installation cavity is crossing first tributary passageway reaches the second tributary passageway, the installation intracavity is connected with and is used for installing the body of slide core, the slide core slides and cooperates the inner ring shoulder inboard that the body was equipped with, first shutoff portion with the second shutoff portion is located respectively the both sides of inner ring shoulder, the spring housing is located the slide core and the top lean on the cooperation is in between inner ring shoulder with the second shutoff portion, the installation of slide core of being convenient for, the stability of guaranteeing the slide core action reduce the interference of liquid stream and impurity to the slide core action.

Preferably, the first blocking portion and the second blocking portion are in sliding fit with the inner wall of the pipe body, stability of stable sliding core action is further improved, and meanwhile contact interference of impurities to the spring is effectively prevented.

Preferably, the pipe body is provided with a transverse duct in the first branch passage, the outer end of the pipe body is provided with an outer cover, and the sliding core, the spring, the pipe body and the outer cover are assembled into a whole and then are mounted to the filter body, so that protection and replacement are facilitated.

Preferably, the inner side surface of the outer cover is fixedly provided with a rubber air cushion positioned at one side of the pore canal, the rubber air cushion is pushed down by the top when the first plugging part is closed to the liquid inlet valve port, the sealing performance is improved, meanwhile, the liquid detention space of the pipe body at the end side of the first plugging part is filled as much as possible, the air cushion is expanded and restored when the liquid inlet valve port is opened, and the impurity detention and accumulation in the pipe body can be avoided.

The utility model has the following beneficial effects: the sliding core is transversely intersected with the liquid flow channel, the state of the blowdown valve port and the liquid inlet valve port is controlled simultaneously through the sliding movement of the sliding core, the translational sliding mode is more stable, under the normal state, the two sliding cores block the liquid flow to the blowdown ports under the action of the springs so that the two filter cores can perform long-term filtering operation, the first blocking part of the sliding core is flushed with the liquid flow, impurities are effectively prevented from accumulating on the first blocking part, the electromagnetic pilot valve body is utilized to control the sliding core to perform backwashing of the filter cores one by one, the second blocking part of the sliding core is flushed, after backwashing is completed, the sliding core rebounds under the action of the springs, the blowdown liquid flow also has the guiding and recovering effects on the sliding core, the sliding core can more rapidly and effectively block blowdown, and the action efficiency and the service life of the sliding core are improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment.

Fig. 2 is a schematic view showing an internal structure of a filter body according to an embodiment.

Fig. 3 is a schematic diagram of a filtration conveying state according to an embodiment.

Fig. 4 is a schematic diagram of a backwash state of the embodiment.

1. A filter body; 2. an electromagnetic pilot valve body; 3. a slide core; 4. a filter element; 5. a liquid inlet; 6. a liquid outlet; 7. a sewage outlet; 8. a flow channel; 9. a filter chamber; 10. a first branch passage; 11. a second branch passage; 12. a liquid inlet valve port; 13. a sewage discharge valve port; 14. a first blocking portion; 15. a second blocking portion; 16. a spring; 17. a mounting cavity; 18. a tube body; 19. an inner annular shoulder; 20. a duct; 21. an outer cover; 22. rubber air cushion.

Detailed Description

The utility model will be further described with reference to fig. 1 to 4 and examples.

The utility model provides an electromagnetism pilot control's back flush filter, including filter body 1, electromagnetism pilot valve body 2, two slide core 3 and two filter core 4, filter body 1 is equipped with inlet 5, liquid outlet 6 and drain 7, be equipped with two liquid flow channel 8 between inlet 5 and the liquid outlet 6, every liquid flow channel 8 all sets up a filter core 4 and a slide core 3, filter core 4 is located the filter chamber 9 that liquid flow channel 8 was equipped with, filter chamber 9 is equipped with the first tributary passageway 10 and the second tributary passageway 11 that feed through inlet 5 and drain 7 respectively, and first tributary passageway 10 and second tributary passageway 11 are equipped with into liquid 12 and drain valve port 13 respectively, slide core 3 transversely passes through first tributary passageway 10 and second tributary passageway 11, and slide core 3 both ends are equipped with the first portion 14 and the second portion 15 that are used for sealing into liquid valve port 12 and drain valve port 13 respectively, slide core 3 seals drain valve port 13 and opens into liquid 12 through the spring 16 that is equipped with, electromagnetism pilot valve body 2 is used for controlling slide core 3 and opens drain valve port 13 and drain valve port 12, and electromagnetism pilot valve body 2 is equipped with two and seals drain valve port 2 and controls the electromagnetic valve port that more than usual in order to control the structure of more than what the reason is carried out at two more in this pilot control valve port.

The filter body 1 is provided with the installation cavity 17 in each liquid flow channel 8, the installation cavity 17 transversely penetrates through the first branch flow channel 10 and the second branch flow channel 11, the installation cavity 17 is internally connected with the pipe body 18 used for installing the slide core 3, the pipe body 18 is provided with the transverse pore canal 20 in the first branch flow channel 10, the outer end of the pipe body 18 is provided with the outer cover 21, the slide core 3 is in sliding fit with the inner side of the inner annular shoulder 19 arranged in the pipe body 18, the first blocking part 14 and the second blocking part 15 are respectively positioned at two sides of the inner annular shoulder 19, the first blocking part 14 and the second blocking part 15 are in sliding fit with the inner wall of the pipe body 18, the spring 16 is sleeved on the slide core 3 and is in abutting fit between the inner annular shoulder 19 and the second blocking part 15, the installation of the slide core 3 is facilitated, the stability of the action of the slide core 3 is ensured, and the interference of liquid flow and impurities on the action of the slide core 3 is reduced.

The rubber air cushion 22 positioned on one side of the duct 20 is fixedly arranged on the inner side surface of the outer cover 21, when the first plugging part 14 is closed to the liquid inlet valve port 12, the rubber air cushion 22 is pressed down, the sealing performance is improved, meanwhile, the liquid detention space of the pipe body 18 on the end side of the first plugging part 14 is filled as much as possible, when the liquid inlet valve port 12 is opened, the air cushion is expanded and restored, and the accumulation of impurities in the pipe body 18 can be avoided.

Working principle: based on the action of the spring 16, the two slide cores 3 are both in a state of closing the drain valve port 13 for a long time and keeping the liquid inlet valve port 12 open, the filtering working state is as shown in fig. 3, liquid flows from the liquid inlet 5 into the filter body 1 in a state of keeping a channel externally connected with the liquid outlet 6, can flow to the liquid outlet 6 through the two liquid flow channels 8 at the same time, specifically, the liquid flows from the liquid inlet valve port 12 of the first branch flow channel 10 to the filter cavity 9, and is output from the liquid outlet 6 after passing through the filter element 4, so that the liquid flow is washed at the first blocking part 14 of the slide core 3 in the filtering working process, and when the back flushing working is performed in advance, one slide core 3 is subjected to electro-hydraulic control of a pilot after the signal is input to the electromagnetic pilot valve body 2, the sliding core 3 slides and compresses the spring 16, the sliding core 3 moves transversely relatively to the liquid flow more quickly and stably, impurities are difficult to accumulate at the end part of the sliding core 3, a drain valve port 13 where the sliding core 3 is positioned is opened and a liquid inlet valve port 12 is closed, as shown in fig. 4, the liquid flow can be sequentially discharged to the drain 7 through two filter elements 4, the impurities of the filter element 4 which is positioned in the same liquid flow channel 8 with the sliding core 3 are discharged for cleaning, the back flushing is realized, a second blocking part 15 of the sliding core 3 is flushed in the back flushing process, the same as the signal is input into the electromagnetic pilot valve body 2 to perform back flushing on the other filter element 4, a pipeline which is externally connected with the liquid outlet 6 is blocked before the back flushing is performed, so that the split flow can be avoided, the back flushing efficiency and the effect are improved, and after the back flushing work is completed, through the electrohydraulic control of the electromagnetic pilot valve body 2, the sliding core 3 is rebounded under the action of the spring 16, meanwhile, the discharged liquid flow also has the guiding and recovering effects on the sliding core 3, and finally the sliding core 3 is recovered to the state shown in fig. 3.

It is apparent that the above examples of the present utility model are merely illustrative of the present utility model and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary or impossible to exemplify all embodiments herein. And obvious changes and modifications which come within the spirit of the utility model are desired to be protected.

Claims (5)

1. The utility model provides an electromagnetism pilot control's back flush filter, includes filter body (1), electromagnetism pilot valve body (2), two slide core (3) and two filter cores (4), and filter body (1) are equipped with inlet (5), liquid outlet (6) and drain (7), are equipped with two flow channel (8), its characterized in that between inlet (5) and liquid outlet (6): every flow channel (8) all sets up a filter core (4) and a smooth core (3), filter core (4) are located filter chamber (9) that flow channel (8) were equipped with, filter chamber (9) are equipped with the intercommunication respectively inlet (5) with first tributary passageway (10) and second tributary passageway (11) of drain (7), just first tributary passageway (10) and second tributary passageway (11) are equipped with respectively into liquid valve port (12) and drain valve port (13), smooth core (3) cross first tributary passageway (10) with second tributary passageway (11), just smooth core (3) both ends are equipped with respectively and are used for sealing into first shutoff portion (14) and second shutoff portion (15) of liquid valve port (12) and drain valve port (13), smooth core (3) are through spring (16) that are equipped with seal valve port (13) and open into liquid valve port (12), electromagnetic pilot valve body (2) are used for controlling smooth core (3) open drain valve port (12) into drain valve port (13).

2. An electromagnetically piloted backwash filter as claimed in claim 1, wherein: the filter body (1) is provided with a mounting cavity (17) in each liquid flow channel (8), the mounting cavity (17) transversely penetrates through the first branch flow channel (10) and the second branch flow channel (11), a tube body (18) used for mounting the sliding core (3) is connected in the mounting cavity (17), the sliding core (3) is in sliding fit with the inner side of an inner annular shoulder (19) arranged on the tube body (18), the first blocking part (14) and the second blocking part (15) are respectively located on two sides of the inner annular shoulder (19), and the spring (16) is sleeved on the sliding core (3) and is in abutting fit between the inner annular shoulder (19) and the second blocking part (15).

3. An electromagnetically piloted backwash filter as claimed in claim 2, wherein: the first blocking part (14) and the second blocking part (15) are both in sliding fit with the inner wall of the pipe body (18).

4. An electromagnetically piloted backwash filter as claimed in claim 2, wherein: the pipe body (18) is provided with a transverse duct (20) in the first branch passage (10), and the outer end of the pipe body (18) is provided with an outer cover (21).

5. The electromagnetically piloted backwash filter of claim 4, wherein: the inner side surface of the outer cover (21) is fixedly provided with a rubber air cushion (22) positioned at one side of the pore canal (20).