CN211562063U

CN211562063U - Filter barrel for backwashing filter element

Info

Publication number: CN211562063U
Application number: CN201822128231.7U
Authority: CN
Inventors: 王军舰; 欧阳燕海; 钟入刚; 王学成; 王飞; 曹慧辉
Original assignee: Jiangsu Delta Environmental Equipment Co ltd
Current assignee: Jiangsu Delta Environmental Equipment Co ltd
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2020-09-25
Anticipated expiration: 2028-12-18

Abstract

The utility model discloses a filter vat of filter core backwash, it includes the staving, sets up first filter assembly, the setting that are used for filtering the raw water in the staving are in second filter assembly, the setting that are used for filtering backwash waste water in the staving are in raw water entry on the staving, with first water purification export that first filter assembly links to each other, with the second water purification export that second filter assembly is linked together, the waste water export of discharge backwash waste water, be provided with first air backwash entry on the first water purification export, be provided with second air backwash entry on the second water purification export, because the utility model discloses an increased gas backwash device on the second filter core that the backwash was used for the second filter core also need not to dismantle just can accomplish the backwash, prolonged the time that equipment need dismantle the maintenance, reduced the maintenance cost of equipment.

Description

Filter barrel for backwashing filter element

Technical Field

The utility model relates to a filter vat of filter core backwash.

Background

Generally, after a filter element of a filter works for a period of time, impurities in raw water slowly block the filter element, and therefore, the filter element of the filter needs to be cleaned and maintained regularly.

CN107080997A discloses a filter, its filter equipment who adopts the mode of air current backwash to wash the filter core lets in gas to the rose box internal of filter core, utilizes gaseous backwash power to wash away the impurity that blocks up on the filter core, and the concentrated subassembly of rethread backwash can further concentrate backwash waste water, improve equipment's throughput. However, after the wastewater is concentrated for many times, the filter element in the concentration assembly is easily blocked by impurities, and the filter element in the concentration assembly still needs to be detached for cleaning and replacement, so that the maintenance cost of the equipment is high.

Accordingly, there is a need for a filter cartridge that does not require removal for cleaning of the filter cartridge.

Disclosure of Invention

The utility model aims at providing a need not to pull down the lauter tub that just can backwash all filter cores.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the filter barrel for backwashing the filter element comprises a barrel body, a first filter assembly, a second filter assembly, a raw water inlet, a first water purification outlet, a second water purification outlet and a wastewater outlet, wherein the first filter assembly is arranged in the barrel body and used for filtering raw water, the second filter assembly is arranged in the barrel body and used for filtering backwashing wastewater, the raw water inlet is arranged on the barrel body, the first water purification outlet is connected with the first filter assembly, the second water purification outlet is communicated with the second filter assembly, the wastewater outlet is used for discharging backwashing wastewater, a first air backwashing inlet is arranged on the first water purification outlet, and a second air backwashing inlet is arranged on the second water purification outlet.

Preferably, still be connected with exhaust assembly on the lauter tub, exhaust assembly includes the exhaust pipe and sets up manometer, relief valve and the discharge valve on the exhaust pipe.

Preferably, the first filter assembly is provided in plurality, and the plurality of first filter assemblies are vertically arranged in the barrel body.

Further preferably, a collecting piece for collecting the first purified water outlets of the first filter assemblies is arranged above the barrel body.

Further preferably, a plurality of first water outlets are respectively provided with a first water outlet valve, and a plurality of first air backwashing inlets are respectively provided with a first air inlet valve.

Preferably, a second water outlet valve is arranged on the second water purification outlet, a second air inlet valve is arranged on the second air backwashing inlet, and a drain valve is arranged on the wastewater outlet.

Preferably, the barrel body comprises a barrel wall part, a lower bottom part and an upper cover part, the first filtering assembly and the second filtering assembly are fixedly connected with the upper cover part, and the wastewater outlet is arranged in the middle of the lower bottom.

Further preferably, the second filtering component is vertically arranged, an inverted pipe is sleeved outside the second filtering component, and the lower opening and the upper part of the inverted pipe are fixedly connected with the lower bottom surface of the upper cover.

Further preferably, a supporting plate for supporting the first filtering component and the second filtering component is fixedly arranged at the lower part of the barrel body, and a plurality of through holes are formed in the supporting plate.

Further preferably, a compression spring is arranged between the bottom of the first filtering component and the supporting plate, a funnel-shaped collector is arranged at the lower part of the supporting plate, and the bottom of the collector is connected with the wastewater outlet.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

because the utility model discloses an increase gas backwash device on the second filter core that the backwash was filtered and is used for the second filter core also need not to dismantle just can accomplish the backwash, has prolonged the equipment and need dismantle the time of maintaining, has reduced the maintenance cost of equipment.

Drawings

FIG. 1 is a perspective view of a barrel body;

FIG. 2 is a schematic cross-sectional view of the barrel body;

fig. 3 is a perspective view of the lauter tub.

In the above drawings: 11. a barrel wall portion; 12. a lower bottom; 13. an upper cover portion; 14. a raw water inlet; 15. a waste water outlet; 2. a first filter assembly; 21. a first purified water outlet; 22. a first gas backwash inlet; 23. a first water outlet valve; 24. a summary component; 25. a compression spring; 3. a second filter assembly; 31. a second purified water outlet; 32. a second gas backwash inlet; 41. an exhaust line; 42. a pressure gauge; 43. a pressure relief valve; 44. an exhaust valve; 5. a water outlet pipe is arranged; 51. a standby normally open valve; 52. a standby long-closed valve; 6. an inverted pipe; 7. a support plate; 8. a collector.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

referring to the attached drawings 1-3, the filter barrel for backwashing the filter element comprises a barrel body, a first filter assembly 2 arranged in the barrel body and used for filtering raw water, a second filter assembly 3 arranged in the barrel body and used for filtering backwashing wastewater, a raw water inlet 14 arranged on the barrel body, a first purified water outlet 21 connected with the first filter assembly 2, a second purified water outlet 31 communicated with the second filter assembly 3 and a wastewater outlet 15 for discharging backwashing wastewater, wherein a first air backwashing inlet 22 is arranged on the first purified water outlet 21, and a second air backwashing inlet 32 is arranged on the second purified water outlet 31. In this embodiment, the first filter element 2 and the second filter element 3 both use ceramic filters.

The filter vat is also connected with an exhaust assembly, and the exhaust assembly comprises an exhaust pipeline 41 and a pressure gauge 42, a pressure relief valve 43 and an exhaust valve 44 which are arranged on the exhaust pipeline 41.

In this embodiment, the first filter assemblies 2 are provided in plurality, and the plurality of first filter assemblies 2 are vertically arranged in the barrel. A collecting piece 24 for collecting the first purified water outlets 21 of the first filter assemblies 2 is arranged above the barrel body.

Wherein, the first water outlet valves 23 are respectively arranged on the first water purification outlets 21, and the first air inlet valves (not shown) are respectively arranged on the first air backwashing inlets 22.

The second purified water outlet 31 is provided with a second water outlet valve 33, the second air backwashing inlet 32 is provided with a second air inlet valve, and the waste water outlet 15 is provided with a drain valve (not shown in the figure).

Referring to fig. 3, in the present embodiment, the collecting member 24 and the second purified water outlet 31 are respectively communicated with the main water outlet pipe 5, and the main water outlet pipe 5 is provided with a standby normally open valve 51. The main water outlet pipe 5 is simultaneously communicated with the waste water outlet 15, a standby long-closed valve 52 is arranged between the main water outlet pipe and the waste water outlet 15, and the standby long-closed valve 52 keeps a closed state and is opened for use under special states such as maintenance.

The barrel body comprises a barrel wall part 11, a lower bottom part 12 and an upper cover part 13, the first filter assembly 2 and the second filter assembly 3 are fixedly connected with the upper cover part 13, and the waste water outlet 15 is arranged in the middle of the lower bottom.

Referring to fig. 2, in the present embodiment, the second filter assembly 3 is vertically disposed, the backflow pipe 6 is sleeved outside the second filter assembly 3, and the lower opening and the upper portion of the backflow pipe 6 are fixedly connected to the lower bottom surface of the upper cover 13.

The lower part of the barrel body is fixedly provided with a supporting plate 7 for supporting the first filtering component 2 and the second filtering component 3, and the supporting plate 7 is provided with a plurality of through holes.

Be provided with compression spring 25 between the bottom of first filter assembly 2 and backup pad 7, under the washing of air current, first filter assembly 2 takes place to become flexible very easily, and compression spring 25 can provide reverse direction's power, and the emergence of not hard up is prevented to a great extent.

The lower part of the supporting plate 7 is provided with a funnel-shaped collector 8, and the bottom of the collector 8 is connected with a waste water outlet 15.

In the embodiment, during normal operation: raw water enters from a raw water inlet 14 on the side wall of the barrel body, at the moment, the first water outlet valve 23 is opened, the second water outlet valve 33, the first air inlet valve, the second air inlet valve, the drain valve and the exhaust valve 44 are closed, and the raw water is filtered by the first filtering component 2 and then is discharged through the first purified water outlet 21, the collecting piece 24 and the main water outlet pipe 5.

This example, in the backwash state: the raw water stops entering the cylinder body, and is backwashed through the following steps,

step one, opening a first air inlet valve and a second water outlet valve 33, closing a first water outlet valve 23, a second air inlet valve, a blowdown valve and an exhaust valve 44, intermittently and circularly feeding air from a plurality of first air backwashing inlets 22 by high-pressure air flow, circularly backwashing a first filtering assembly 2, simultaneously, feeding water in the filter barrel into a backflow pipe 6, filtering by a second filtering assembly 3 in the backflow pipe 6, and discharging until all water in the filter barrel is pressed into the backflow pipe 6.

And step two, opening an exhaust valve 44 and a second air inlet valve, closing the first water outlet valve 23, the second water outlet valve 33, the first air inlet valve, the second air inlet valve and the blow-down valve, exhausting and decompressing through the exhaust valve 44 to reduce the pressure in the barrel, then opening the second air inlet valve, introducing high-pressure gas at intervals through the second air inlet valve to backwash the second filter element, and backwashing for multiple times.

And step three, opening the first air inlet valve, closing the first water outlet valve 23, the second water outlet valve 33, the second air inlet valve, the drain valve and the exhaust valve 44, introducing high-pressure gas into the barrel body for pressurization, opening the drain valve after the pressure in the barrel body reaches a specified pressure, and discharging backwashing wastewater from the wastewater outlet 15.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a filter vat of filter core backwash, its includes the staving, set up be used for filtering the first filtering component of raw water in the staving, set up be used for filtering backwash waste water in the staving second filtering component, set up raw water entry on the staving, with the first water purification export that first filtering component links to each other, with the second water purification export that second filtering component is linked together, the waste water export of discharge backwash waste water, be provided with first air backwash entry on the first water purification export, its characterized in that: and a second gas backwashing inlet is arranged on the second water purification outlet.

2. The filter barrel for backwashing the filter element according to claim 1, wherein: still be connected with exhaust assembly on the lauter tub, exhaust assembly includes the exhaust pipe and sets up manometer, relief valve and discharge valve on the exhaust pipe.

3. The filter barrel for backwashing the filter element according to claim 1, wherein: the first filtering component is provided with a plurality of filtering components which are vertically arranged in the barrel body.

4. A filter cartridge backwashed filter barrel according to claim 3, characterized in that: a collecting piece for collecting a plurality of first purified water outlets of the first filtering assembly is arranged above the barrel body.

5. The filter barrel for backwashing the filter element according to claim 4, wherein: a plurality of first water outlet valves are respectively arranged on the first water purifying outlets, and a plurality of first air backwashing inlets are respectively arranged on the first air backwashing inlets.

6. The filter barrel for backwashing the filter element according to claim 1, wherein: and a second water outlet valve is arranged on the second water purification outlet, a second air inlet valve is arranged on the second air backwashing inlet, and a drain valve is arranged on the wastewater outlet.

7. The filter barrel for backwashing the filter element according to claim 1, wherein: the barrel body comprises a barrel wall part, a lower bottom part and an upper cover part, the first filtering component and the second filtering component are fixedly connected with the upper cover part, and the waste water outlet is arranged in the middle of the lower bottom.

8. The filter barrel for backwashing the filter element according to claim 7, wherein: the second filtering component is vertically arranged, an inverted pipe is sleeved outside the second filtering component, and an opening at the lower part and the upper part of the inverted pipe are fixedly connected with the lower bottom surface of the upper cover part.

9. The filter barrel for backwashing the filter element according to claim 7, wherein: the lower part of the barrel body is fixedly provided with a supporting plate for supporting the first filtering component and the second filtering component, and the supporting plate is provided with a plurality of through holes.

10. A filter cartridge backwashed filter barrel according to claim 9, characterized in that: the bottom of first filtering component with be provided with compression spring between the backup pad, the lower part of backup pad is provided with leaks hopper-shaped collector, the bottom of collector is connected the waste water export.