CN217593924U

CN217593924U - Air-water washing gravity type valveless filter

Info

Publication number: CN217593924U
Application number: CN202220897038.3U
Authority: CN
Inventors: 杨旭光; 张东
Original assignee: Hankel Water Group Co ltd
Current assignee: Hankel Water Group Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-10-18
Anticipated expiration: 2032-04-19

Abstract

The utility model relates to an air water washing gravity type valveless filtering pond has set gradually clear water storehouse, has filtered the storehouse and has strained the back storehouse from last to down, be provided with the filter bed in the filtration storehouse, filter storehouse and inlet tube intercommunication, filter storehouse and strain the back storehouse intercommunication, strain between back storehouse and the clear water storehouse through surging the pipe intercommunication, filter bed below is provided with the mechanism of admitting air, surging to be provided with pneumatic flap valve on the pipe lies in the tip in the clear water storehouse. The purpose lies in through the mode of air water combination back flush, discharges into the water drainage tank with the water suspended solid of holding back and flows out the filtering pond together, and this mode is than traditional filtering pond back flush mode, to the suspended solid of holding back in the filter material gap, can wash more thoroughly.

Description

Air-water washing gravity type valveless filter

Technical Field

The utility model belongs to the technical field of filter, concretely relates to air water washes gravity type valveless filtering pond.

Background

The existing water treatment process comprises the following steps: water taking, flocculation, sedimentation, filtration and disinfection, wherein after raw water is subjected to flocculation sedimentation, part of fine floccules in the water are suspended in the water and cannot be naturally precipitated, and need to be removed through a filter tank, filter efficiency is reduced after suspended matters in the filter tank are intercepted by filter materials after long-term use, the suspended matters intercepted in the filter materials need to be removed through backwashing, various valves need to be manually controlled in the backwashing of a common rapid filter tank, and the operation of electrical equipment is complicated; the U-shaped filter and the valveless filter cannot completely flush pollutants by limited water flushing alone, so that the problem of short filtering period is caused, and the normal water supply amount cannot be ensured when water is produced in a water plant by frequent back flushing.

SUMMERY OF THE UTILITY MODEL

In order to solve unable filtering pond and need carry out effective back flush problem to the suspended solid that the filter material held back filtering material, the utility model provides an air water washes gravity type valveless filtering pond, this filtering pond passes through the mode of air water joint back flush, and the suspended solid that will hold back is discharged the water drainage tank with water together and flows out the filtering pond, and the more traditional filtering pond back flush mode of this mode can be washed more thoroughly to the suspended solid that holds back in the filter material gap.

The utility model adopts the technical proposal that: the utility model provides an air water washes gravity type valveless filter, from last to having set gradually down clear water storehouse, filtering the storehouse and straining the back storehouse, be provided with the filter material layer in the filtering the storehouse, filter storehouse and inlet tube intercommunication, filter storehouse and strain back storehouse intercommunication, strain between back storehouse and the clear water storehouse through surging the pipe intercommunication, filter material layer below is provided with the mechanism of admitting air, surging to be provided with the valve on the pipe is located the tip in the clear water storehouse.

Preferably, the drainage groove is arranged in the filtering bin and at the filtering material layer, the drainage groove and the filtering material layer are separated by a partition plate, the drainage groove is communicated with the filtering bin, a drainage port is arranged in the drainage groove, and the drainage port is communicated with the outside through a pipeline.

Preferably, the post-filter bin is communicated with the overrunning pipe through a water inlet, and the water inlet is arranged below the post-filter bin.

Preferably, the water inlet pipe is connected with a siphon auxiliary pipe through a three-way pipe, a liquid level meter is arranged on the siphon auxiliary pipe and connected with a controller, and the controller is connected with the valve and the air inlet mechanism.

Preferably, the air inlet mechanism comprises an air inlet, the air inlet is connected with a compressed air source, a valve is arranged at the air inlet, and the valve and the compressed air source are connected with the controller.

Preferably, the air inlet is communicated with an air pipe, a plurality of air outlets are uniformly distributed on the air pipe, and the air pipe is arranged below the filter material layer and enables the air to be uniformly distributed and blown to the filter material layer.

The utility model discloses following beneficial effect has: the utility model adopts the mode of air-water combined backwashing to discharge the intercepted suspended matters and water into the drainage tank and flow out of the filter tank, without using a high-power water pump, complex electric control, a large amount of auxiliary equipment such as valves and the like used in the existing rapid filter tank; the filter has no complex pipeline of the existing U-shaped filter and valveless filter, and solves the problems of incomplete pure water washing and insufficient water.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-clear water storehouse; 2-a filtering bin; 3-a filter material layer; 4-post-filtration warehouse; 5-a transcendental tube; 6-a valve; 7-water inlet pipe; 8-a liquid level meter; 9-a water inlet; 11-an air inlet; 12-a drainage channel; 13-a water outlet; 15-siphon auxiliary pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, an air-water washing gravity type valveless filter is sequentially provided with a clear water bin 1, a filtering bin 2 and a post-filtering bin 4 from top to bottom, wherein a filter material layer 3 is arranged in the filtering bin 2, the filtering bin 2 is communicated with a water inlet pipe 7, and the filtering bin 2 is communicated with the post-filtering bin 4; the post-filtration bin 4 is communicated with the clear water bin 1 through an overrunning pipe 5, sewage enters the filtering bin 2 directly from a water inlet pipe 7 and is filtered by the filtering material layer 3 and finally enters the clear water bin 1 through the overrunning pipe 5, an air inlet mechanism is arranged below the filtering material layer 3, air can be expected to enter the lower portion of the filtering material layer 3 through the air inlet mechanism, the air continuously moves upwards, the movement of air flow enables the filtering material to rub against each other to drive suspended matters intercepted in gaps of the filtering material to the upper layer of the filtering bin 2, the suspended matters are finally discharged out of the filtering bin 2, a valve 6 is arranged on the end portion, located in the clear water bin 1, of the overrunning pipe 5, the valve 6 in the embodiment is a pneumatic flap valve, and when the air inlet mechanism enters air, the pneumatic flap valve is closed, and the air is prevented from entering the clear water bin 1.

Be located in filter storehouse 2, filter material layer 3 department is provided with water drainage tank 12, by the baffle separation between water drainage tank 12 and the filter material layer 3, water drainage tank 12 and filter storehouse 2 intercommunication, be provided with outlet 13 in the water drainage tank 12, outlet 13 passes through pipeline and outside intercommunication. When the suspended matters intercepted in the gaps of the filter material are driven to the upper layer of the filter bin 2 by ventilation, water can be directly discharged from the drainage groove 12, and the height of the partition plate between the drainage groove 12 and the filter material layer 3 is higher than the thickness of the filter material layer 3.

The post-filter bin 4 is communicated with the overrunning pipe 5 through a water inlet 9, and the water inlet 9 is arranged below the post-filter bin 4.

The water inlet pipe 7 is connected with the siphon auxiliary pipe 15 through a three-way pipe, which is prior art and will not be described in detail herein. Be provided with level gauge 8 on siphon auxiliary tube 15, level gauge 8 is used for monitoring the liquid level height in siphon auxiliary tube 15, level gauge 8 is connected with the controller, the controller is connected with valve 6 and air inlet mechanism, and after highly reacing the settlement height, controller control air inlet mechanism opened and supplies air to the filter bed layer, and after the settlement time of supplying air, controller control flap 6 was opened, and the water of 1 in the clear water storehouse is because gravity is through surging pipe 5 and returning to the suspended solid that will hold back in filter storehouse 2 and water and discharging water drainage tank 12 together to through outlet 13 outflow filtering pond.

The air inlet mechanism comprises an air inlet 11, the air inlet 11 is connected with a compressed air source, a valve is arranged at the air inlet 11, and the valve and the compressed air source are connected with the controller.

The utility model discloses a gas filter, including air inlet 11, trachea, filter material layer 3, the trachea is provided with a plurality of gas outlets on the trachea, the trachea sets up filter material layer 3's below and makes the gas equipartition blow to filter material layer 3 to guarantee that the gas that enters into filter material layer 3 can even effect and filter material layer 3, and carry out effective processing to the suspended solid of remaining in the gap in the filter material layer 3.

The specific working mode is as follows: water enters the filter bin 2 from the water inlet distribution groove through the water inlet pipe 7, enters the clear water bin 1 through the overrun pipe 5 between the filtered bin 4 and the clear water bin 1 after being filtered, and flows into the clear water tank through the water outlet weir after the clear water bin 1 is full of water.

During production, the liquid level meter 8 at the top of the water inlet pipe 7 monitors the water level in the water inlet pipe 7, during backwashing, the liquid level meter 8 sends an instruction to a control system to open a fan (the equipment is not shown in the figure), close a pneumatic flap valve, block the communication between the clear water bin 1 and the filter bin 2, compressed air enters through a backwashing air inlet 11, and the compressed air is uniformly inflated to the post-filter bin 4; then the pneumatic flap valve is opened to ensure that clean water in the clean water bin 1 reversely passes through the overrunning pipe 5 and uniformly enters the filtered bin 4 through the water inlet 9, and the backwashing water flows into the drainage tank 12 and is discharged out of the filter tank through the drainage port 13 after passing through the filter material layer 3.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and any changes and combinations made to the above embodiments are within the scope of the present invention as long as they are within the spirit of the present invention.

Claims

1. The utility model provides an air water washing gravity type valveless filter, from last to having set gradually under to clear water storehouse (1), filtering storehouse (2) and straining back storehouse (4), be provided with filter material layer (3) in filtering storehouse (2), filter storehouse (2) and inlet tube (7) intercommunication, filter storehouse (2) and strain back storehouse (4) intercommunication, its characterized in that: the post-filter bin (4) is communicated with the clear water bin (1) through an overrunning pipe (5), an air inlet mechanism is arranged below the filter material layer (3), and a valve (6) is arranged at the end part of the overrunning pipe (5) located in the clear water bin (1).

2. The gas-water washing gravity type valveless filter according to claim 1, characterized in that: be located filter storehouse (2) inside, filter material layer (3) department is provided with water drainage tank (12), by the baffle separation between water drainage tank (12) and the filter material layer (3), water drainage tank (12) and filter storehouse (2) intercommunication, be provided with outlet (13) in water drainage tank (12), outlet (13) are through pipeline and outside intercommunication.

3. The gas-water washing gravity type valveless filter according to claim 2, characterized in that: the post-filter bin (4) is communicated with the overrunning pipe (5) through a water inlet (9), and the water inlet (9) is arranged below the post-filter bin (4).

4. The gas-water washing gravity type valveless filter according to claim 1, characterized in that: the water inlet pipe (7) is connected with a siphon auxiliary pipe (15) through a three-way pipe, a liquid level meter (8) is arranged on the siphon auxiliary pipe (15), the liquid level meter (8) is connected with a controller, and the controller is connected with the valve (6) and the air inlet mechanism.

5. The gas-water washing gravity type valveless filter according to claim 4, wherein: the air inlet mechanism comprises an air inlet (11), the air inlet (11) is connected with a compressed air source, a valve is arranged at the air inlet (11), and the valve and the compressed air source are connected with the controller.

6. The air-water washing gravity type valveless filter according to claim 5, wherein: the gas inlet (11) is communicated with the gas pipe, a plurality of gas outlets are uniformly distributed on the gas pipe, and the gas pipe is arranged below the filter material layer (3) and enables gas to be uniformly distributed to the filter material layer (3).