CN222550213U - High-efficient back flush filtration system of gas-water - Google Patents

Abstract

The utility model discloses an air-water high-efficiency backwashing filtration system, comprising a filter tank, a water washing system and an air washing system. The filter tank is divided into a first space and a second space from top to bottom, and a filter material for filtering the water flow to be treated is arranged in the second space; a clean water flow and/or the water flow to be treated is input into the first space by setting a first pipeline group connected to the first space, and a rotatable water flow is formed in the first space; a clean water flow is input into the second space by connecting to the second pipeline group in the second space; and a backwashing gas is output to the second space by connecting one end to an external gas providing device and the other end to the second pipeline group or a gas transmission pipeline extending into the second space, and the backwashing procedures of air washing and water washing are combined, and each angle in the filter tank is automatically washed, so that dirt is more easily cleared from the filter material, and the water consumption in the backwashing process can be effectively saved, and the efficiency of cleaning the filter system can be improved.

Description

High-efficient back flush filtration system of gas-water

Technical Field

The application relates to the technical field of water treatment, in particular to a gas-water efficient backwashing filter system.

Background

In the prior art, a filtering device is often adopted to filter water, and when the current filtering device is used, impurities and particulate matters in water are usually filtered out through a filtering tank, so that the water quality is purified. However, during filtration, impurities in the water are continuously accumulated on the filter material to form a hardened layer, which reduces the filtering capability of the filter material, and thus, the filter material of the filter tank is required to be cleaned frequently to maintain the normal operation of the equipment, and the service life of the filter material is prolonged. However, because the hardened layer formed by impurities is harder, a large amount of water resources are often consumed for flushing, and the flushing difficulty is high for the filtering material and part of dead angle areas in the filtering tank, so that the flushing is often required to be performed manually, and the labor cost is high.

Disclosure of utility model

The application aims at the defects in the prior art and provides a gas-water efficient backwashing filter system for solving at least one of the technical problems.

A high-efficiency backwashing filter system for air and water comprises a filter tank body, a water washing system and an air washing system, wherein the filter tank body is divided into a first space and a second space from top to bottom, and a filter material for filtering water flow to be treated is arranged in the second space.

The water washing system comprises a first pipeline group, one end of the first pipeline group is connected with the external water storage area, the other end of the first pipeline group extends into the first space, and one end of the second pipeline group is connected with the external water storage area, and the other end of the second pipeline group extends into the second space. Wherein the first pipe set is used for inputting cleaning water flow and/or water flow to be treated into the first space and forming rotatable water flow in the first space, and the second pipe set is used for inputting cleaning water flow into the second space or collecting treated water flow from the second space.

The gas washing system comprises a gas transmission pipeline, one end of the gas transmission pipeline is connected with an external gas supply device, the other end of the gas transmission pipeline is connected with a second pipeline group or extends into the second space, and a gas valve is arranged on the gas transmission pipeline and used for switching back flushing gas flowing into the second space.

In a particular embodiment, the first conduit group includes a first conduit and a second conduit. The first pipeline extends from the external water storage area to the first space, a first water valve is arranged on the first pipeline, and an included angle is formed between the water outlet direction of the first pipeline and the inner side wall of the filtering tank body so as to form rotatable water flow in the first space.

The first water valve is used for switching on and off the clean water flow or the water flow to be treated flowing into the first space. The second pipeline extends from the external water storage area into the first space, and a second water valve is arranged on the second pipeline and is used for switching on and off the clean water flow or the water flow to be treated flowing into the first space.

In a specific embodiment, the second pipe group comprises a third pipe having one end connected to the external water storage area. The other end of the third pipeline extends from the filtering tank body to the second space, and a third water valve is arranged on the third pipeline and used for switching on and off water flow flowing into the second space.

In one embodiment, the filter material is elevated in the second space, and one end of the second tube set extends into a lower space of the filter material in the second space.

In a specific embodiment, one end of the second pipeline group extends into or below the filter material of the second space, a water collector is arranged in the filter material, and the second pipeline group is communicated with the water collector. When the filter material fills the second space, one end of the second pipe set extends into the filter material of the second space.

In one embodiment, the tank body is provided with a pressure protection device, and the pressure protection device is connected with an external air supply device and is used for closing the air valve and the external air supply device when the pressure in the filtering tank body reaches a preset value. In one specific embodiment, a first control valve connected in series with the air valve is arranged on the air pipeline and used for controlling the flow of backwash gas in the air pipeline.

In one embodiment, the system further comprises a first drain pipe and a first outlet valve disposed thereon, a second drain pipe and a second outlet valve disposed thereon, and a filter material for filtering the water stream to be treated and generating a treated water stream in the second space. The first water outlet valve is used for switching back flushing water flow discharged from the first space to the outer space, and the second water outlet valve is used for switching treated water flow discharged from the second space to the outer space or the outer water storage area. In practice, the second pipe group may be connected to a second drain pipe, and the second pipe group may collect the treated water flow from the second space and convey the treated water flow to the second drain pipe, and discharge the treated water flow from the second drain pipe to the outer space or the outer water storage area

In one embodiment, the device further comprises a vertical pipe, wherein one end opening of the vertical pipe is positioned in the first space, and the other end of the vertical pipe is connected with the external space. This stand pipe may be for discharging the water body of the water level in the filtration tank beyond the portion of the opening position to control the water level in the filtration tank. In practical application, the user can set the opening height of the vertical pipe in the filtering tank body according to practical requirements.

In a specific embodiment, the filter further comprises a control module connected with the air washing system and the water washing system respectively, wherein the control module is used for enabling the air washing system and the water washing system to sequentially operate within one working period so as to sequentially perform air washing and water washing on the filter material.

In the actual use process, the water valve, the air valve and the water outlet valve can be an electric valve or a pneumatic valve, can be connected with the control module and are uniformly controlled by the control module.

In the water washing step, the water flow entering through the first pipe and the second pipe may be a clean water flow or a water flow to be treated having less impurities than the rest of the water flows to be treated, as long as the washing of the filter material can be achieved. The resulting backwash water stream containing impurities after the final rinse will be discharged along the first drain line.

The application has the beneficial effects that the air-water efficient backwashing filter system has the advantages that the air-water efficient backwashing filter system is combined with the water washing system, dirt deposition and hardening of filter materials in the filter tank body are firstly exploded and loosened through the air washing device, then the water washing system is operated to wash the filter materials, and the rotatable water flow provided in the water washing system is matched, so that the difficulty of washing the filter materials can be effectively reduced, dirt is easier to clean out of the filter materials, the water supply amount of the water washing system when the filter materials are washed can be saved, and the cleaning efficiency of the filter systems is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a filtration system of the present application;

FIG. 2 is another schematic illustration of a filtration system according to the present application;

FIG. 3 is a partial schematic view of a filter tank of the present application;

FIG. 4 is a schematic view of a first space and a second space in a filtration system according to the present application;

FIG. 5 is a schematic diagram of the connection relationship between each module in the filtering system according to the present application.

The reference numerals are 1-filtering tank, 11-first pipeline, 111-first water valve, 112-second control valve, 113-water outlet, 12-second pipeline, 121-second water valve, 13-third pipeline, 131-third water valve, 14-gas pipeline, 141-gas valve, 142-first control valve, 143-external gas supply device, 15-pressure protection device, 21-filtering material, 22-water collector, 23-water distributor, 31-first water drain pipe, 311-first water outlet valve, 32-second water drain pipe, 321-second water outlet valve, 4-vertical pipe, 41-opening, 5-control module, 51-first driving piece, 52-second driving piece, 6-observation window, A-first space and B-second space.

Detailed Description

The conception, specific structure, and technical effects produced by the present application will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present application.

Hereinafter, various embodiments of the present application will be described more fully. The application is capable of various embodiments and of modifications and variations therein. It should be understood, however, that there is no intent to limit the various embodiments of the application to the particular embodiments disclosed herein, but rather, the application is to be construed to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of the various embodiments of the application.

Hereinafter, the terms "comprises" or "comprising" as may be used in various embodiments of the present application indicate the presence of the disclosed functions, operations or elements, and are not limiting of the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the application, the terms "comprises," "comprising," and their cognate terms are intended to refer to a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be interpreted as first excluding the existence of or increasing likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.

In various embodiments of the application, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B or may include both a and B.

Expressions (such as "first", "second", etc.) used in the various embodiments of the application may modify various constituent elements in the various embodiments, but the respective constituent elements may not be limited. For example, the above description does not limit the order and/or importance of the elements. The above description is only intended to distinguish one element from another element. For example, the first user device and the second user device are indicative of different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present application.

It should be noted that, unless explicitly stated or defined otherwise, terms such as "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, it should be understood by those of ordinary skill in the art that the terms indicating an orientation or a positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of description, not to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the application.

The terminology used in the various embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the application. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the application belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is the same as the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in connection with the various embodiments of the application.

Examples

The embodiment provides a high-efficient back flush filtration system of gas-water, through combining the back flush mode of gas washing and washing, can effectively improve the clean efficiency of filter material in the filtration jar body to practice thrift back flush water. The specific scheme is as follows:

A high-efficiency backwashing filter system for air and water comprises a filter tank body 1, a water washing system and an air washing system, wherein the filter tank body 1 is divided into a first space and a second space from top to bottom, and a filter material 21 for filtering water flow to be treated is arranged in the second space. In one embodiment, the first space is shown in fig. 4 as area a and mainly refers to the area above the filter material 21 in the filter tank 1, and the second space is shown in fig. 4 as area B and mainly refers to the area below the filter material 21 and the filter material 21 in the filter tank 1. In actual use, the filter material 21 may or may not occupy the second space as desired, i.e., the filter material 21 may be overhead leaving a portion of space below the filter material 21.

The water washing system comprises a first pipeline group, one end of the first pipeline group is connected with the external water storage area, the other end of the first pipeline group extends into the first space, and one end of the second pipeline group is connected with the external water storage area, and the other end of the second pipeline group extends into the second space. The first pipe group is used for inputting cleaning water flow and/or water flow to be treated into the first space and forming rotatable water flow in the first space, and the second pipe group is used for inputting cleaning water flow into the second space or collecting treated water flow from the second space.

The gas washing system comprises a gas transmission pipeline 14, one end of the gas transmission pipeline 14 is connected with an external gas supply device 143, the other end of the gas transmission pipeline is connected with a second pipeline group or extends into the second space, a gas valve 141 is arranged on the gas transmission pipeline 14, and the gas valve 141 is used for switching back flushing gas flowing into the second space.

In a specific embodiment, the first pipe group comprises a first pipe 11 and a second pipe 12. The first pipeline 11 extends from the external water storage area into the first space, a first water valve 111 is arranged on the first pipeline 11, and the water outlet direction of the first pipeline 11 forms an included angle with the inner side wall of the filtering tank body 1 so as to form rotatable water flow in the first space.

The first water valve 111 is used to switch on and off the flow of cleaning water or water to be treated flowing into the first space. The second pipe 12 extends from the external water storage area into the first space, and a second water valve 121 is arranged on the second pipe 12, and the second water valve 121 is used for switching on and off the clean water flow or the water flow to be treated flowing into the first space.

In a specific embodiment, the second set of pipes comprises a third pipe 13 with one end connected to the external water storage area. The other end of the third pipeline 13 extends from the filtering tank body 1 into the second space, a third water valve 131 is arranged on the third pipeline 13, and the third water valve 131 is used for switching on and off water flow flowing into the second space.

In one embodiment, the filter material 21 is elevated in the second space, and one end of the second tube set extends into the lower space of the filter material 21 in the second space. In practice, the filter material 21 may be suspended within the filter tank 1 by an overhead filter bed or filter cap.

In one embodiment, one end of the second tube set extends into or below the filter material 21 in the second space, in which the water collector 22 is arranged, and the second tube set communicates with the water collector. In practice, the water collector 22 may be an eight claw/lateral pipe type water collector, as shown in FIG. 3. When the filter material 21 fills the second space, a length of the second tubing extends into the filter material of the second space.

In a specific embodiment, the tank body is provided with a pressure protection device 15, and the pressure protection device 15 is connected with an external air supply device 143, and is used for closing the air valve 141 and the external air supply device 143 when the pressure in the filtering tank body 1 reaches a preset value, wherein the pressure protection device 15 can be in communication connection with the external air supply device 143 to obtain a command of a switch, or can be in communication connection with the control device 5. In practical application, the gas supply device is a high-pressure air pump, in particular a fan, and a pressure release valve is arranged on the gas supply device for automatic pressure release.

In one embodiment, the gas pipeline 14 is provided with a first control valve 142 connected in series with the gas valve 141 for controlling the flow rate of the backwash gas in the gas pipeline 14. The first pipe 11 is provided with a second control valve 112 connected in series with the first water valve 111 for controlling the flow rate of the water flow in the first pipe 11. In practical applications, the first control valve 142 and the second control valve 112 may be a manual valve or an electrically controlled valve.

In one embodiment, the filter material 21 is used for filtering the water flow to be treated and generating a treated water flow in the second space, and further comprises a first drain pipe 31 and a first outlet valve 311, a second drain pipe 32 and a second outlet valve 321 arranged thereon. A first drain pipe 31 extends with one end into said second space, and in a specific embodiment, a first drain pipe 31 with one end can be connected to said first conduit 11 in said filter material for collecting and discharging backwash water flow collected in the first space by the first conduit 11 during the backwash stage.

One ends of the first drain pipe 31 and the second drain pipe 32 are connected to the second space, the first water outlet valve 311 is used for switching on and off the backwash water flow discharged from the first space to the outer space, and the second water outlet valve 321 is used for switching on and off the treated water flow discharged from the second space to the outer space or the outer water storage area. In practical applications, the first drain pipe 31 and the second drain pipe 32 may have one end connected to a side of the filtering tank 1 corresponding to the second space, or one end connected to the bottom of the filtering tank 1. The second pipe set may be in communication with the second drain pipe 32, and may be the second pipe set that collects the treated water stream from the second space and delivers the treated water stream to the second drain pipe 32.

In a specific embodiment, the filter tank further comprises a vertical pipe 4 with one end extending into the first space, one end opening of the vertical pipe 4 is located in the first space, and the other end is connected with the external space, and in practical application, a user can set the height of the opening of the vertical pipe 4 in the filter tank 1 according to practical needs, so as to flexibly control the height of the water level in the filter tank 1. In a specific embodiment, an observation window 6 is further provided on a region of one side of the filtration tank 1 corresponding to the first space inside the filtration tank 1, and a worker can observe whether a rotary water flow is formed in the first space and the water level condition inside the filtration tank 1 through the observation window 6.

In the actual use process, the water valve, the air valve 141 and the water outlet valve may be an electric valve or a pneumatic valve, which may be connected with the control module 5 and uniformly controlled by the control module 5. The connection relationship between the control module 5 and each component module is shown in fig. 5.

In an application case, when the water sources of the first pipeline 11, the second pipeline 12 and the third pipeline 13 are the same area of the external water storage area, as shown in fig. 1, a first driving member 51 may be further disposed between the external water storage area and the three pipelines to drive the flow of water in the three pipelines, so as to adjust the water flow speed. In practical applications, the first driving member 51 may be a water pump, and a plurality of water pumps may be provided or a variable frequency pump may be provided according to the actual water amount. In the case where the water sources of the other first, second and third pipes 11, 12, 13 are not the same area as the external water storage area, as shown in fig. 2, a first driving member 51 may be provided between the first water source area and the first pipe 11, and a second driving member 52 may be provided between the second water source area and the second and third pipes 12, 13 to drive the different water sources to deliver water to the pipes, respectively. It may be realized that the first pipe 11 and the second pipe 12, the third pipe 13 have different water flow rates, and the sources of the water in the three pipes may also be different, for example, the first pipe 11 may be used for taking water from the first water source area and delivering the water flow to be treated, and the second pipe 12 and the third pipe 13 may be used for taking water from the second water source area and delivering the clean water flow, which may all be set according to practical situations.

In a specific embodiment, the air washing system further comprises a control module 5 connected with the air washing system and the water washing system respectively, and the control module 5 is used for enabling the air washing system and the water washing system to operate sequentially within one working period.

In a specific back flushing process, a user sequentially operates the air washing system and the water washing system through the control module 5 to finish back flushing of the filtering system. First, the air washing is performed, the first water valve 111, the second water valve 121, the third water valve 131 and the second water outlet valve 321 are closed, and the first driving member 51 and/or the second driving member 52 for supplying water to the first pipeline group and the second pipeline group are also closed, so that the water flow is not output to the filtering tank 1 in the external water storage area. The air valve 141 and the first outlet valve 311 are opened. After the above steps are completed, the gas supply device is turned on, and the backwash gas for aeration is directly input into the second space of the filtration tank 1 through the third pipeline 13 in the second pipeline group or through the gas pipeline 14. After running for a preset period of time, the backwash gas in the filter tank 1 forms a larger impact force on dirt deposition and hardening layers of the filter material 21, and bursts each filter layer in the filter material 21.

After the air washing is completed, the inside of the filter material 21 is loosened, and then a washing step is performed. At this time, the air valve 141 and the air supply device are closed, the first water valve 111, the third water valve 131 and the first water outlet valve 311 are opened, the second water valve 121 and the second water outlet valve 321 are closed, and the first driving member 51 and/or the second driving member 52 for supplying water to the first pipe group and the second pipe group are opened, so that the external water storage area outputs water flow to the filtering tank 1. At this time, the externally input water flow flows into the first space through the first pipeline 11, and as the water outlet 113 of the first pipeline 11 forms an included angle with the inner side wall of the filtering tank body 1, the water flow output by the first pipeline 11 can rotate in the first space to form a side rotational flow, so that the inner side wall of the filtering tank body 1 can play a better cleaning role, and impurities in the sedimentary layer above the filtering material 21 can be driven to rotate in the first space. The third pipe 13 also outputs a backwash water flow to the filter material 21, and the backwash water flow from the third pipe 13 can backwash the filter material 21 faster and flush out deposited dirt faster in the water wash step because the filter material 21 has been loosened by the pressure of the gas in the air wash step. In one embodiment, the port of the second pipeline located in the first space is provided with a water distributor 23, during the back flushing process, water flows from bottom to top, and the obtained sewage can be collected by the water distributor 23 and finally discharged from the first drain pipe 31. Due to the addition of the air washing step, the water consumption in the water washing step can be further reduced through the back washing operation of air washing-water washing combination, the washing efficiency of the filtering system is greatly improved, and resources are effectively saved.

In the water washing step, the water flows entering through the first pipe 11 and the third pipe 13 may be clean water flows or water flows to be treated having less impurities than the rest of water flows to be treated.

The filtering performance of the filtering material 21 after air washing and water washing is improved, during a filtering process, the first water valve 111 and the second water valve 121 are opened, the first pipeline 11 and the second pipeline 12 are driven by the first driving piece 51 and/or the second driving piece 52 to convey water flow to be processed to the first space, the water flow to be processed is processed by the filtering material 21 to obtain clean processed water flow, and the processed water flow is collected by the water collector 22 in the second space and is further output from the second drain pipe 32. In practice, the second drain pipe 32 may be connected to an external water storage area such that a self-circulation is formed between the filter system and the external water storage area.

The embodiment provides a high-efficient back flush filtration system of gas-water, through combining water washing system and gas washing system, earlier through the dirt deposit and the hardening of the filter material in the air washing device to the filtration jar body explode loose, the rethread water washing system washes filter material, rotatable rivers that provide in the cooperation water washing system can effectively reduce the degree of difficulty of washing filter material, carry out the washing of each angle voluntarily for the filth is more clear from filter material, can practice thrift the supply amount of water washing system when wasing filter material, improve the clear efficiency to filter system, the cost of manual cleaning has been reduced.

While the preferred embodiment of the present application has been described in detail, the present application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present application, and the equivalent modifications or substitutions are included in the scope of the present application as defined in the appended claims.

Claims (10)

1. The air-water efficient back flushing filtering system is characterized by comprising a filtering tank body, a water washing system and an air washing system, wherein the filtering tank body is divided into a first space and a second space from top to bottom, and a filtering material for filtering water flow to be treated is arranged in the second space;

The water washing system comprises a first pipeline group, a second pipeline group and a water washing system, wherein one end of the first pipeline group is connected with the external water storage area, the other end of the first pipeline group extends into the first space, and one end of the second pipeline group is connected with the external water storage area, and the other end of the second pipeline group extends into the second space;

The gas washing system comprises a gas transmission pipeline, one end of the gas transmission pipeline is connected with an external gas supply device, the other end of the gas transmission pipeline is connected with the second pipeline group or extends into the second space, and a gas valve is arranged on the gas transmission pipeline and used for switching back flushing gas flowing into the second space.

2. The air-water high efficiency backwash filter system of claim 1 wherein the first conduit set comprises a first conduit and a second conduit;

The first pipeline extends into the first space from the external water storage area, a first water valve is arranged on the first pipeline, and an included angle is formed between the water outlet direction of the first pipeline and the inner side wall of the filtering tank body so as to form rotatable water flow in the first space;

the first water valve is used for switching on and off the clean water flow or the water flow to be treated flowing into the first space;

the second pipeline extends into the first space from the external water storage area, and a second water valve is arranged on the second pipeline and is used for switching on and off clean water flow or water flow to be treated flowing into the first space.

3. The air-water high efficiency backwash filter system of claim 2 wherein the second conduit set comprises a third conduit having one end connected to an external water storage area;

the other end of the third pipeline extends from the filtering tank body to the second space, a third water valve is arranged on the third pipeline and used for switching on and off water flow flowing into the second space.

4. A gas-water high efficiency backwash filter system as defined in claim 1, wherein said filter material is elevated in said second space, said second conduit set extending at one end into a lower space of said filter material in said second space.

5. A gas-water high efficiency backwash filter system as defined in claim 1, wherein one end of said second conduit set extends into or below said filter material in said second space, a water collector being disposed in said second space, said second conduit set communicating with said water collector.

6. The air-water efficient backwash filter system according to claim 1, wherein a pressure protection device is arranged on the tank body and is connected with an external air supply device for closing the air valve and the external air supply device when the pressure in the filter tank body reaches a preset value.

7. The air-water efficient backwash filter system according to claim 1, wherein a first control valve connected in series with the air valve is arranged on the air pipeline and used for controlling the flow rate of backwash gas in the air pipeline.

8. The air-water high efficiency backwash filter system of claim 4 or 5 further comprising a first drain pipe and a first outlet valve, a second drain pipe and a second outlet valve disposed thereon, wherein the filter material is configured to filter the water stream to be treated and generate the treated water stream in the second space;

The first water outlet valve is used for switching back flushing water flow discharged from the first space to the outer space, and the second water outlet valve is used for switching treated water flow discharged from the second space to the outer space or the outer water storage area.

9. The air-water efficient backwash filter system according to claim 1 further comprising a standpipe having an opening at one end thereof located in the first space and another end thereof connected to an external space.

10. The air-water efficient backwash filter system of claim 1, further comprising a control module connected to the air-wash system and the water-wash system, respectively, the control module being configured to operate the air-wash system and the water-wash system sequentially within a single duty cycle.