CN220513509U

CN220513509U - High-pressure filter

Info

Publication number: CN220513509U
Application number: CN202321864705.9U
Authority: CN
Inventors: 陈奕昌; 张婧; 林日媛; 孙复胜
Original assignee: Suez Environmental Testing Technology Hainan Co Ltd
Current assignee: Suez Environmental Testing Technology Hainan Co Ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-02-23
Anticipated expiration: 2033-07-14

Abstract

The utility model relates to a high-pressure filter, which comprises a filter cavity and a pull rod, wherein a slag discharge valve is arranged at the bottom of the filter cavity, a water inlet one-way valve and a water outlet are respectively arranged on the side wall of the filter cavity, a filter screen is arranged in the filter cavity, the lower surface of the filter screen is connected with a filter screen cleaning mechanism, a chute is arranged on the top of the water outlet, a stop block is arranged in the chute, a first slide rod is arranged on the stop block in a sliding penetrating manner, a pin shaft and a sliding door are respectively arranged at two ends of the first slide rod, a first spring is sleeved on the first slide rod and is abutted between the top of the sliding door and the bottom of the stop block, the top of the filter cavity is outwards expanded to form a water storage cavity, a piston is arranged in the water storage cavity in a sliding manner, an elastic mechanism is connected between the piston and the top of the water storage cavity, the pull rod is arranged on the top of the chute in a penetrating manner, the upper end of the pull rod is connected with the piston, a long round hole is arranged on the pull rod, and the pin shaft is arranged in the long round hole. The utility model can back flush the filter screen after each filtration is completed, so as to avoid the blockage of the filter screen, and the filter is not required to be disassembled for cleaning, thus the cleaning operation is convenient.

Description

High-pressure filter

Technical Field

The utility model belongs to the technical field of filters, and particularly relates to a high-pressure filter.

Background

In recent years, with the development of industry and aquaculture, wastewater generated in the production and aquaculture processes is discharged into water sources such as rivers, seas and lakes wantonly, and meanwhile, the water sources are polluted to different degrees due to the damage of ecological environment of the water sources. Thus requiring sampling of the water source. But because there are typically a large number of impurities in the water supply that affect the results of the test. For example, sand water, aquatic shell fragments, plant pieces, etc., and therefore water samples need to be filtered before detection can be performed. And in order to increase the filtration efficiency, it is often necessary to use a high pressure filter to accommodate the higher flow rate for filtration. The utility model provides a among the prior art like CN2671660 discloses liquid filter, including filter casing, filter casing top dismantlement formula installs the filter top cap, be equipped with in the filter casing with the filter screen of horizontal direction default angle, be equipped with inlet and liquid outlet on the both sides of filter casing respectively, and inlet and liquid outlet are located the filter screen both sides respectively, be equipped with the manometer on inlet and liquid outlet respectively in addition, when filtering, if two manometer pressure differences are great, indicate that the filter screen appears blockking up, need take apart the filter top cap and wash the filter screen this moment. However, the problems in the prior art are: because the filtering water flow speed is higher when high-pressure filtering is carried out, the filter screen load is larger, so that the filter screen is required to be cleaned by frequently disassembling the filter top cover, and great inconvenience is brought to detection work. Based on this, provide a high pressure filter, can back flush the filter screen after accomplishing at every turn to avoid the jam of filter screen, and need not dismantle the filter and wash, make washing convenient operation.

Disclosure of Invention

The utility model provides a high-pressure filter, which can back flush a filter screen after each filtering is finished so as to avoid the blockage of the filter screen, and the filter is not required to be disassembled for cleaning, so that the cleaning operation is convenient.

The utility model adopts the technical scheme that:

the utility model provides a high-pressure filter, includes filter chamber and pull rod, the filter chamber bottom is equipped with the slag tap, be equipped with inlet check valve and outlet on the relative lateral wall of filter chamber respectively, be equipped with the filter screen in the filter chamber, inlet check valve and outlet are located the filter screen both sides respectively, the filter screen lower surface is connected with filter screen clearance mechanism, be equipped with the spout on the outlet top, be equipped with the dog in the spout, slide on the dog and wear to be equipped with slide bar one, slide bar one's upper and lower extreme is equipped with round pin axle and sliding door respectively, the sliding door slides and locates in the spout, slide bar one is gone up the cover and is equipped with spring one, spring one both ends butt respectively in between sliding door top and the dog bottom, outside expansion in filter chamber top constitutes the water storage chamber, the water storage intracavity slides and is equipped with the piston, be connected with elastic mechanism between piston and water storage chamber top, the pull rod slides and wears to locate on the spout top, the pull rod upper end connect in the piston lower surface, be equipped with the slotted hole on the pull rod.

Further, the piston comprises a piston body, a sealing ring is inlaid on the outer wall of the piston body, the sealing ring is in sealing fit with the inner wall of the water storage cavity, and the pull rod is connected to the lower surface of the piston body.

Further, the elastic mechanism comprises a second slide rod arranged on the upper surface of the piston body, the second slide rod is arranged on the top of the water storage cavity in a sliding penetrating mode, a second spring is sleeved on the second slide rod, and the second spring is abutted between the top of the water storage cavity and the upper surface of the piston body.

Further, the filter screen cleaning mechanism is equipped with the support including locating on the filter chamber inner wall, locates motor and rotation on the filter chamber outer wall wear to locate the pivot first on the filter chamber lateral wall, rotate on the support and wear to be equipped with the pivot second, be equipped with driven bevel gear on the one end of pivot second, its other end is equipped with the bar brush, one end of pivot first connect in motor, its other end is equipped with driving bevel gear, driving bevel gear meshes with driven bevel gear.

Further, the water inlet one-way valve is connected with a water inlet pipe.

Further, the top of the water storage cavity is provided with a vent hole.

Compared with the prior art, the utility model has the beneficial effects that:

after the filtration is finished, the water sample is stopped from being conveyed into the filter cavity, and the elastic mechanism can be used for acting on the piston and pressurizing the filtered water sample downwards, so that the backwash water flow speed is improved, and the backwash effect is improved; the filter screen cleaning mechanism is started to clean the lower surface of the filter screen, the slag discharge valve is opened to release pressure in the filter cavity and the water storage cavity, under the action of the gravity cooperation of the elastic mechanism and water, a water sample filtered above the filter screen can be quickly washed down to the filter screen, impurities adhered to the lower surface of the filter screen are discharged from the slag discharge valve together with the water, the filter screen can be backwashed after the completion of each filtration, the blockage of the filter screen is avoided, the filter is not required to be disassembled for cleaning, and the filter screen is convenient to clean.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is an enlarged view at a in fig. 1;

FIG. 3 is an enlarged view at B-B in FIG. 2;

in the figure: 1. a filter chamber; 2. a water inlet one-way valve; 3. a water inlet pipe; 4. a water storage cavity; 5. a second spring; 6. a second slide bar; 7. a vent hole; 8. a drive bevel gear; 9. a passive bevel gear; 10. a bracket; 11. a second rotating shaft; 12. a strip-shaped brush; 13. a filter screen; 14. a piston body; 15. a seal ring; 16. a chute; 17. a pull rod; 18. a pin shaft; 19. a slotted hole; 20. a stop block; 21. a first slide bar; 22. a first spring; 23. a sliding door; 24. a water outlet; 25. a first rotating shaft; 26. a motor; 27. and a slag discharging valve.

Detailed Description

For a better understanding of the technical content of the present utility model, specific examples are provided below and the present utility model is further described with reference to the accompanying drawings.

Referring to fig. 1 to 3, the utility model provides a high-pressure filter, comprising a filter cavity 1 and a pull rod 17, wherein the bottom of the filter cavity 1 is in a conical structure, the bottom of the filter cavity 1 is provided with a slag discharge valve 27 which is beneficial to draining during back flushing, the slag discharge valve 27 can adopt a manual valve or an electromagnetic valve, the left and right side walls of the filter cavity 1 are respectively provided with a water inlet one-way valve 2 and a water outlet 24, the water inlet one-way valve 2 is used for avoiding water sample countercurrent, the water inlet one-way valve 2 is connected with a water inlet pipe 3, the water inlet one-way valve 2 is positioned at the lower side of a filter screen 13, the water outlet 24 is positioned at the upper side of the filter screen 13, the filter screen 13 is horizontally and fixedly arranged in the filter cavity 1, the lower surface of the filter screen 13 is connected with a filter screen cleaning mechanism, the lower surface of the filter screen 13 can be cleaned, the top of the water outlet 24 is provided with a chute 16, the middle part in the chute 16 is fixedly provided with a stop 20, a slide bar 21 is slidably arranged on the stop 20, the slide bar 21 is positioned in the chute 16, the upper end and the lower end of the slide bar I21 are respectively fixedly provided with a pin shaft 18 and a slide door 23, the slide door 23 is arranged in the slide groove 16 in a sliding way, the water outlet 24 can be opened or closed by sliding the slide bar 23 up and down, the slide bar I21 is sleeved with a spring I22, the two ends of the spring I22 are respectively propped against the top of the slide door 23 and the bottom of the stop block 20, the slide door 23 can be pushed to be idly closed on the water outlet 24 by the resilience force of the spring I22 so as to close the water outlet 24, the top of the filter cavity 1 expands outwards to form the water storage cavity 4, a piston is arranged in the water storage cavity 4 in a sliding way, the top of the water storage cavity 4 is provided with a vent hole 7, the vent hole 7 has the function of avoiding the excessive pressure accumulated in the space above the piston when the piston slides in the water storage cavity 4, an elastic mechanism is connected between the piston and the top of the water storage cavity 4 and can push the piston to the bottom of the water storage cavity 4, the pull rod 17 slides and is arranged on the top of the slide groove 16 in a sliding way, the upper end of the pull rod 17 is fixedly connected to the lower surface of the piston, a slotted hole 19 is formed in the upper side of the pull rod 17, and a pin shaft 18 is slidably arranged in the slotted hole 19;

after back flushing is finished, the elastic mechanism can drive the piston to prop against the top of the filter cavity 1, so that the pin shaft 18 is positioned at the upper end of the oblong hole 19, and the sliding door 23 can be pushed downwards to be closed on the water outlet 23 by the first spring 22; when filtering is needed, a water sample is conveyed into the filter cavity 1 below the filter screen 13 through the water inlet pipe 3 and the water inlet one-way valve 2 in sequence, so that the pressure in the filter cavity 1 is increased, the piston is driven to slide upwards in the water storage cavity 4 under the action of resilience force of the elastic mechanism, the water level in the filter cavity 1 is increased, the piston drives the pull rod 17 to slide upwards at the top of the chute 16, the pull rod 17 drives the oblong hole 19 to move upwards until the lower end of the oblong hole 19 contacts the pin shaft 18, the oblong hole 19 drives the slide rod I21 to slide upwards on the stop block 20 through the pin shaft 18, the slide rod I21 drives the slide door 23 to slide upwards in the chute 16 and open the water outlet 24, so that the pressure of the filter cavity 1 is relieved, the piston is kept near the highest rising point of the water sample, and the water sample passes through the filter screen 13 until the water level rises above the water outlet 24 and is discharged from the water outlet 24; after the filtration is finished, the water sample is stopped to be conveyed into the filter cavity 1, the elastic mechanism can slide downwards with the piston for a certain distance, meanwhile, the first spring 22 synchronously drives the sliding door 23 to slide downwards, under the action of the oblong hole, the water outlet 24 can be closed before the piston descends to the bottom of the water storage cavity 5, the accumulated pressure in the water storage cavity 4 and the filter cavity 1 is enabled, the water level in the filter cavity 1 is flush with the water outlet 24 at the moment, the backwash water flow speed is favorably improved, the backwash effect is further improved, then, the filter screen cleaning mechanism is started to clean the lower surface of the filter screen 13, the slag discharge valve 27 is opened to decompress the filter cavity 1 and the water storage cavity 4, the elastic mechanism is utilized to drive the piston to slide downwards continuously in the water storage cavity 4, under the action of gravity cooperation of water, the water sample filtered above the filter screen 13 can be quickly washed downwards, impurities adhered to the lower surface of the filter screen 13 can be discharged from the slag discharge valve 27 together, the filter screen 13 can be prevented from being blocked after each time of filtration is finished, and the filter screen 13 is not required to be cleaned, and the backwash operation is convenient.

Specifically, the piston comprises a piston body 14, an annular sealing ring 15 is inlaid on the outer wall of the piston body 14, the sealing ring 15 is in sealing fit with the inner wall of the water storage cavity 4, the sealing performance between the piston and the inner wall of the water storage cavity 4 is improved, the upper end of a pull rod 17 is fixedly connected to the lower surface of the piston body 14, and the pull rod 17 and the sealing ring 15 can be respectively driven to move up and down together through the piston body 14.

Specifically, the elastic mechanism comprises a second slide rod 6 fixedly arranged on the upper surface of the piston body 14, the second slide rod 6 is slidably arranged on the top of the water storage cavity 4 in a penetrating mode, the piston body 14 can drive the second slide rod 6 to slide on the top of the water storage cavity 4, the sliding of the piston body 14 is guided by the second slide rod 6, the sealing performance between the piston body 14 and the side wall of the water storage cavity 4 is improved, a second spring 5 is sleeved on the second slide rod 6, the upper end and the lower end of the second spring 5 are respectively abutted between the top of the water storage cavity 4 and the upper surface of the piston body 14, and the second spring 5 can be compressed when the piston body 14 slides upwards so as to store energy for backwashing.

Specifically, filter screen clearance mechanism is equipped with support 10 including fixedly locating on the filter chamber 1 inner wall, motor 26 and rotation on the filter chamber 1 outer wall are worn to locate in the rotation on the filter chamber 1 lateral wall first 25, rotate on the support 10 and wear to be equipped with pivot second 11, fixed being equipped with passive bevel gear 9 on the one end of pivot second 11, fixed being equipped with bar brush 12 on the other end of pivot second 11, the outer end fixed connection of pivot first 25 is in motor 26, the inner fixed driving bevel gear 8 that is equipped with of pivot first 25, driving bevel gear 8 meshes with passive bevel gear 9. The motor 26 drives the first rotating shaft 25 to rotate on the side wall of the filter cavity 1, the first rotating shaft 25 drives the second rotating shaft 11 to rotate on the support 10 through the meshing of the driving bevel gear 8 and the driven bevel gear 9, and the second rotating shaft 11 drives the strip-shaped hairbrush 12 to rotate so as to clean the lower surface of the filter screen 13, so that the cleaning effect is good.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the novel technical principle of the present utility model, and these improvements and modifications should also be considered as the protection scope of the present utility model.

Claims

1. A high pressure filter, characterized by: including filter chamber and pull rod, the filter chamber bottom is equipped with the slag tap, be equipped with water inlet check valve and outlet on the relative lateral wall of filter chamber respectively, be equipped with the filter screen in the filter chamber, water inlet check valve and outlet are located the filter screen both sides respectively, the filter screen lower surface is connected with filter screen clearance mechanism, be equipped with the spout on the outlet top, be equipped with the dog in the spout, slide on the dog and wear to be equipped with slide bar one, slide bar one's upper and lower extreme is equipped with round pin axle and sliding door respectively, the sliding door slides and locates in the spout, slide bar one goes up the cover and is equipped with spring one, spring one both ends butt respectively in between sliding door top and the dog bottom, outside expansion in filter chamber top constitutes the water storage chamber, the water storage intracavity slides and is equipped with the piston, be connected with elastic mechanism between piston and the water storage chamber top, the pull rod slides and wears to locate on the spout top, the pull rod upper end connect in the piston lower surface, be equipped with the slotted hole on the pull rod, the round pin is located in the slotted hole.

2. A high pressure filter as claimed in claim 1, wherein: the piston comprises a piston body, a sealing ring is inlaid on the outer wall of the piston body, the sealing ring is attached to the inner wall of the water storage cavity in a sealing mode, and the pull rod is connected to the lower surface of the piston body.

3. A high pressure filter as claimed in claim 2, wherein: the elastic mechanism comprises a second slide rod arranged on the upper surface of the piston body, the second slide rod is arranged on the top of the water storage cavity in a sliding penetrating mode, a second spring is sleeved on the second slide rod, and the second spring is abutted between the top of the water storage cavity and the upper surface of the piston body.

4. A high pressure filter as claimed in claim 1, wherein: the filter screen cleaning mechanism is characterized in that a support is arranged on the inner wall of the filter cavity, a motor arranged on the outer wall of the filter cavity and a rotating shaft I which rotates to penetrate through the side wall of the filter cavity are arranged on the support, a rotating shaft II is arranged on the support in a rotating mode, a driven bevel gear is arranged at one end of the rotating shaft II, a strip-shaped hairbrush is arranged at the other end of the rotating shaft II, one end of the rotating shaft I is connected with the motor, a driving bevel gear is arranged at the other end of the rotating shaft I, and the driving bevel gear is meshed with the driven bevel gear.

5. A high pressure filter as claimed in claim 1, wherein: the water inlet one-way valve is connected with a water inlet pipe.

6. A high pressure filter as claimed in claim 1, wherein: and the top of the water storage cavity is provided with a vent hole.