CN216643252U - Dirt-removing valve for net filter - Google Patents
Dirt-removing valve for net filter Download PDFInfo
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- CN216643252U CN216643252U CN202220152354.8U CN202220152354U CN216643252U CN 216643252 U CN216643252 U CN 216643252U CN 202220152354 U CN202220152354 U CN 202220152354U CN 216643252 U CN216643252 U CN 216643252U
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Abstract
The utility model discloses a sewage discharge valve of a net filter, which comprises a filter body, a sewage valve and a cavity sewage inlet, wherein the filter body is provided with a filter cavity; the sewage valve comprises a sewage discharging cavity, a sewage discharging pipe clamped at one end of the sewage discharging cavity and a piston sealing cavity clamped at one end of the sewage discharging cavity far away from the sewage discharging pipe; a piston block which horizontally moves in the piston sealing cavity, a piston rod which is used for fixing the piston block, a piston sealing ring which is sleeved on the piston block and used for sealing the piston block and the piston sealing cavity and a return spring which is used for returning the piston block are arranged in the piston sealing cavity; a first water inlet for controlling the movement of a water pressure adjusting piston block in the piston sealing cavity is formed in one end, far away from the sewage discharge cavity, of the piston sealing cavity; a second water inlet for adjusting the movement of a water pressure adjusting piston block in the piston sealing cavity is fixed at one end of the sewage discharging cavity, which is close to the piston sealing cavity; and a plugging head for plugging the sewage discharge pipe is fixed at one end of the piston rod, which is far away from the piston block.
Description
Technical Field
The utility model relates to the technical field of sewage discharge valves, in particular to a sewage discharge valve of a net filter.
Background
The impurity that need be in aqueous in industrial production and domestic water can be used for industrial production after filtering, can have mud to pile up in the filterable in-process filter of water, causes the inside water pressure of filter to rise, and the drainage is inconvenient, causes certain influence to the water pressure of supplying water in the production process, and the solution in the current production technology is to change the filter screen or regularly artifical blowdown, causes certain inconvenience for production.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a drainage valve of a mesh filter, so as to solve the problems.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a sewage discharge valve of a net filter, which comprises a filter body, a sewage valve for discharging sewage generated by filtering in the filter body and a cavity sewage inlet which is arranged between the filter body and the sewage valve and enables the sewage to enter the sewage valve; the sewage valve comprises a sewage discharging cavity, a sewage discharging pipe clamped at one end of the sewage discharging cavity and a piston sealing cavity clamped at one end of the sewage discharging cavity far away from the sewage discharging pipe; a piston block which horizontally moves in the piston sealing cavity, a piston rod which is used for fixing the piston block, a piston sealing ring which is sleeved on the piston block and used for sealing the piston block and the piston sealing cavity and a return spring which is used for returning the piston block are arranged in the piston sealing cavity; a first water inlet for controlling the movement of a water pressure adjusting piston block in the piston sealing cavity is formed in one end, far away from the sewage discharge cavity, of the piston sealing cavity; a second water inlet for adjusting the movement of a water pressure adjusting piston block in the piston sealing cavity is fixed at one end of the sewage discharging cavity, which is close to the piston sealing cavity; a plugging head for plugging the sewage discharge pipe is fixed at one end of the piston rod, which is far away from the piston block; an electromagnetic switch for controlling the opening and closing of the first water inlet is arranged on the first water inlet; a pressure sensor for detecting the water pressure in the filter body is fixed on the filter body; the pressure sensor is electrically connected with the electromagnetic switch.
Furthermore, a plug sealing ring for sealing the plug head and the sewage discharge pipe is sleeved on the plug head.
Furthermore, a decontamination ring for scraping sludge on the piston rod is arranged at the position of the sewage discharge cavity close to the second water inlet.
Further, the piston sealing cavity is locked on the sewage draining cavity through a sealing cavity bayonet in threaded connection with the sewage draining cavity.
Further, the sewage discharge pipe is locked on the sewage discharge cavity through a sewage discharge bayonet in threaded connection with the sewage discharge cavity.
The utility model has the beneficial effects that:
when the filter filters normally, water enters from a first water inlet and a second water inlet simultaneously, a piston block is acted on a piston rod by a reset spring, a blocking head props against a drain pipe at the moment, and a drain outlet is in a closed state at the moment; when a large amount of filtered impurities are attached to a filter screen in the filter, the pressure sensor monitors that the pressure in the filter screen rises at the moment, the electromagnetic switch of the first water inlet is closed, the second water inlet enters water normally, the water flow of the second water inlet pushes the piston block to retreat to extrude the reset spring, the piston rod pulls the blocking head to be separated from the sewage discharge pipe, the sewage discharge state of the filter is at the moment, after sewage is discharged, the pressure returns to be normal, the sensor monitors that the pressure in the filter screen decreases to close the electromagnetic switch, the first water inlet returns to water, the piston rod pulls the blocking head to close the sewage discharge pipe, and sewage discharge is stopped; thereby realizing automatic pollution discharge without manual pollution discharge or filter element replacement.
Drawings
FIG. 1 is a schematic view of the entire structure of a strainer sewage valve of the present invention;
FIG. 2 is a schematic view of a drain valve of a strainer of the present invention;
FIG. 3 is a schematic view of a piston seal chamber of a strainer waste valve of the present invention;
fig. 4 is a schematic view of the piston rod structure of the blowoff valve of the screen filter.
Reference numbers in the figures:
1. a filter body; 2. a sewage valve; 3. a cavity sewage inlet; 4. a blowdown chamber; 5. a blow-off pipe; 6. a piston seal cavity; 7. a piston block; 8. a piston rod; 9. a piston seal ring; 10. a return spring; 11. a first water inlet; 12. a second water inlet; 13. plugging a plug; 14. a plug sealing ring; 15. a decontamination ring; 16. an electromagnetic switch; 17. a pressure sensor; 18. a sealing cavity bayonet; 19. a pollution discharge bayonet.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 4, the strainer sewage valve provided in this embodiment includes a strainer body 1, a sewage valve 2 for discharging sewage filtered in the strainer body 1, and a sewage inlet 3 provided between the strainer body 1 and the sewage valve 2 for allowing sewage to enter the sewage valve 2; the sewage valve 2 comprises a sewage discharging cavity 4, a sewage discharging pipe 5 clamped at one end of the sewage discharging cavity 4 and a piston sealing cavity 6 clamped at one end of the sewage discharging cavity 4 far away from the sewage discharging pipe 5; a piston block 7 which horizontally moves in the piston sealing cavity 6, a piston rod 8 which is fixed on the piston block 7, a piston sealing ring 9 which is sleeved on the piston block 7 and enables the piston block 7 and the piston sealing cavity 6 to be sealed and a return spring 10 which enables the piston block 7 to return are arranged in the piston sealing cavity 6; a first water inlet 11 for controlling the movement of the water pressure adjusting piston block 7 in the piston sealing cavity 6 is arranged at one end of the piston sealing cavity 6, which is far away from the sewage discharge cavity 4; a second water inlet 12 for adjusting the movement of a water pressure adjusting piston block 7 in the piston sealing cavity 6 is fixed at one end of the sewage discharging cavity 4 close to the piston sealing cavity 6; a plugging head 13 for plugging the sewage discharge pipe 5 is fixed at one end of the piston rod 8 far away from the piston block 7; an electromagnetic switch 16 for controlling the opening and closing of the first water inlet 11 is arranged on the first water inlet 11; a pressure sensor 17 for detecting the water pressure in the filter body 1 is fixed to the filter body 1; the pressure sensor 17 is electrically connected with the electromagnetic switch 16.
Further, a plug sealing ring 14 which seals the plug 13 and the sewage discharge pipe 5 is sleeved on the plug 13; the plug sealing ring 14 is sleeved on the plug 13 to seal the sewage discharge pipe 5.
Further, a decontamination ring 15 for scraping sludge on the piston rod 8 is arranged at the position, close to the second water inlet 12, of the sewage discharge cavity 4; the decontamination ring 15 scrapes sludge on the piston rod 8 to prevent sludge from entering the piston seal cavity 6 to influence the movement of the piston block 7.
Further, the piston sealing cavity 6 is locked on the sewage draining cavity 4 through a sealing cavity bayonet 18 in threaded connection with the sewage draining cavity 4; the piston sealing cavity 6 is detachably connected with the sewage discharge cavity 4, so that the piston block 7, the piston rod 8 and the blocking head 13 can be conveniently installed.
Further, the sewage discharge pipe 5 is locked on the sewage discharge cavity 4 through a sewage discharge bayonet 19 in threaded connection with the sewage discharge cavity 4, and the sewage discharge pipe 5 can rotate relative to the sewage discharge cavity 4.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (5)
1. A dirt discharge valve of a net filter is characterized in that: comprises a filter body (1), a sewage valve (2) for discharging sewage generated by filtering in the filter body (1) and a cavity sewage inlet (3) which is arranged between the filter body (1) and the sewage valve (2) and enables sewage to enter the sewage valve (2); the sewage valve (2) comprises a sewage discharging cavity (4), a sewage discharging pipe (5) clamped at one end of the sewage discharging cavity (4), and a piston sealing cavity (6) clamped at one end of the sewage discharging cavity (4) far away from the sewage discharging pipe (5); a piston block (7) which horizontally moves in the piston sealing cavity (6), a piston rod (8) which is used for fixing the piston block (7), a piston sealing ring (9) which is sleeved on the piston block (7) and used for sealing the piston block (7) and the piston sealing cavity (6) and a return spring (10) which is used for returning the piston block (7) are arranged in the piston sealing cavity (6); a first water inlet (11) for controlling the movement of a water pressure adjusting piston block (7) in the piston sealing cavity (6) is formed in one end, far away from the sewage discharge cavity (4), of the piston sealing cavity (6); a second water inlet (12) for adjusting the movement of a water pressure adjusting piston block (7) in the piston sealing cavity (6) is fixed at one end of the sewage discharging cavity (4) close to the piston sealing cavity (6); a plugging head (13) for plugging the sewage discharge pipe (5) is fixed at one end of the piston rod (8) far away from the piston block (7); an electromagnetic switch (16) for controlling the opening and closing of the first water inlet (11) is arranged on the first water inlet (11); a pressure sensor (17) for detecting the water pressure in the filter body (1) is fixed on the filter body (1); the pressure sensor (17) is electrically connected with the electromagnetic switch (16).
2. A strainer drain valve according to claim 1, wherein: and a plug sealing ring (14) for sealing the plug (13) and the sewage discharge pipe (5) is sleeved on the plug (13).
3. A strainer drain valve according to claim 1, wherein: and a decontamination ring (15) for scraping sludge on the piston rod (8) is arranged at the position of the blowdown cavity (4) close to the second water inlet (12).
4. A strainer drain valve according to claim 1, wherein: the piston sealing cavity (6) is locked on the sewage draining cavity (4) through a sealing cavity bayonet (18) in threaded connection with the sewage draining cavity (4), so that the piston sealing cavity (6) can be detachably connected with the sewage draining cavity (4).
5. A strainer drain valve according to claim 1, wherein: the sewage discharge pipe (5) is locked on the sewage discharge cavity (4) through a sewage discharge bayonet (19) in threaded connection with the sewage discharge cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220152354.8U CN216643252U (en) | 2022-01-20 | 2022-01-20 | Dirt-removing valve for net filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220152354.8U CN216643252U (en) | 2022-01-20 | 2022-01-20 | Dirt-removing valve for net filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216643252U true CN216643252U (en) | 2022-05-31 |
Family
ID=81728396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220152354.8U Active CN216643252U (en) | 2022-01-20 | 2022-01-20 | Dirt-removing valve for net filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216643252U (en) |
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2022
- 2022-01-20 CN CN202220152354.8U patent/CN216643252U/en active Active
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