CN210495361U

CN210495361U - U-shaped air-water distribution filter brick

Info

Publication number: CN210495361U
Application number: CN201921442505.8U
Authority: CN
Inventors: 杨华; 杨成; 徐陶; 陈伟良
Original assignee: Hunan Kesheng Water Services Co Ltd
Current assignee: Hunan Kesheng Water Services Co Ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-05-12
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a U-shaped air-water distribution filter brick, which comprises a filter brick body, the cross section of the filter brick body is rectangular, an inverted U-shaped supporting plate is arranged inside the filter brick body, the supporting plate and the bottom of the filter brick body are enclosed to form an inverted U-shaped air-water channel, the bottom wall of the filter brick in the air-water channel is provided with a lower water hole, the supporting plate, the side wall and the top wall of the filter brick form an air distribution cavity, the left side and the right side are respectively provided with an air distribution cavity, the supporting plate is provided with an upper air hole, the air-water channel is communicated with the air distribution cavity, the top wall of the filter brick is provided, the water and the gas can stably run without mutual interference, the air is uniformly distributed upwards from the air distribution holes at the upper parts of the filter bricks, the backwash water flows upwards from gaps among the filter bricks after flowing out along the water through holes at the lower parts of the filter bricks, and the backwash water and the gas are stably and fully uniformly distributed on the bearing layer at the upper parts of the filter bricks, so that the backwash efficiency and the backwash effect are improved.

Description

U-shaped air-water distribution filter brick

Technical Field

The utility model relates to a filter brick especially relates to a U type air water distribution filter brick that distributes for filtering pond water distribution gas distribution system, belongs to water treatment technical field.

Background

Water is a source of life, although the water resource on the earth is huge in reserve, the water resource available for human life production is not much, fresh water mainly used by human is about 35 x 10 billion cubic meters, and the total water storage capacity of the whole world is only 2.53%. Therefore, the utilization rate of water needs to be improved, and industrial and domestic sewage is recycled by adopting a method of recovery and physical and chemical treatment, which is one of the most important modes at present; the filtration is an important link in the sewage treatment process, after the filtration tank works for a period of time, along with the increase of the dirt blocking amount of a filter material layer, the porosity of the filter material is continuously reduced, the resistance to water flow is increased, so that the filtration speed is reduced, the water level of the filtration tank is gradually increased, meanwhile, the intercepted pollutants can penetrate through the filter layer, the turbidity of the filtered water is increased, and the water quality is rapidly deteriorated, so the filtration tank is required to be regularly backwashed, the backwashing of the filtration tank is an operation process of flushing the filter layer by adopting reverse water flow (from bottom to top) for recovering the normal work of the filtration tank, and the filter layer is flushed by utilizing the reverse water flow, so that the filter layer is regenerated and can work normally.

The practice proves that the air-water backwashing method has better effect than the pure water backwashing method, the air-water backwashing can destroy the structure of mud balls in the filter material, when the air is used for washing, the filter material is greatly vibrated, the filter material is repeatedly collided and rubbed, the filter material layer is violently stirred, the mud balls cannot be formed, the formed mud ball structure is also vibrated and destroyed, and adhesive substances on all the filter material fall off and are taken away by backwashing water, and the influence of the water distribution uniformity of a water distribution system on the backwashing effect is great. Uneven water distribution can cause that a part of filter layers are not fully expanded, the other part of filter layers are excessively expanded, filter materials are not washed cleanly in an area with insufficient expansion, sand leakage can be caused in an area with excessive expansion, and when the supporting layer pebbles move, the sand leakage phenomenon can be caused.

In the prior art, air and water of the filter brick enter and exit from the upper exhaust hole and the drain hole, which easily causes the defects that the air and water are not uniform in the air inlet process and the air and water are not in time when the air and water are connected. The invention with application publication number CN 108328729A discloses an S-shaped filter brick water distribution system, which comprises a filter brick body, wherein a primary water distribution cavity is arranged in the middle of the body, the primary water distribution cavity is in an isosceles trapezoid shape, secondary water distribution cavities are arranged on two sides of the primary water distribution cavity, the secondary water distribution cavities are in a right-angled trapezoid shape, and a shared bevel edge is arranged between the secondary water distribution cavity and the primary water distribution cavity; the invention adopts a plurality of water distribution cavities, so that air and water can be distributed for many times to achieve the aim of uniformly distributing the air and water, but when the air and water distribution system is installed, C30 concrete needs to be poured into gaps between adjacent filter bricks and the pool wall, so that the whole air and water distribution system and the pool bottom form a whole, and the installation difficulty is increased.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: overcome above-mentioned problem, provide a U type air water distribution filter brick, realize that the air from filter brick upper portion gas distribution hole circulation, the backwash water is from the water hole circulation of crossing of filter brick lower part, and the aqueous vapor is its way respectively promptly, and mutual conflict interference, water distribution and gas distribution that can be stable satisfy water distribution gas distribution demand when the filtering pond backwash, improve backwash efficiency and backwash effect, install more portably simultaneously.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides a U type air water distributes filter brick, including the filter brick body, filter brick body cross-section is the rectangle, there is "U" shape backup pad inside, the backup pad encloses the air water passageway that closes formation "U" shape with filter brick body bottom, be equipped with the lower part on the filter brick diapire in the air water passageway and cross the water hole, the backup pad forms the cloth gas chamber with filter brick lateral wall and roof, the left and right sides respectively has a cloth gas chamber, be equipped with upper portion on the backup pad and cross the gas hole, make air water passageway and cloth gas chamber intercommunication, the filter brick roof is equipped with top cloth gas hole.

Furthermore, the supporting plate is positioned in the center of the filter brick, so that the two air distribution chambers are formed symmetrically, the upper air passing holes on the supporting plate are arranged on the upper half parts of the two side walls of the supporting plate, namely the upper air passing holes are positioned at the positions closer to the circular tops,

furthermore, there are a plurality of upper air passing holes, and all the upper air passing holes are kept on the same horizontal plane.

Furthermore, the filter brick body is provided with reinforcing ribs, the height of each reinforcing rib is 10-20mm, and the bottom of each filter brick is lifted, so that backwash water can flow to the upper filter layer along gaps among the filter bricks after flowing out of the lower water through holes.

Furthermore, the filter bricks are made of HDPE materials.

Furthermore, connecting devices are arranged at two ends of the filter brick body, a socket is arranged on the connecting device at one end, and an inserting block matched with the socket is arranged on the connecting device at the other end, so that the two filter bricks can be in end-to-end sealing butt joint, and the filter bricks can be flexibly increased and decreased according to the size of a field.

The utility model discloses beneficial effect: the U-shaped arch-shaped supporting plate is adopted in the filter brick cavity, so that the pressure resistance is stronger; during backwashing, water and gas can stably run without mutual interference, so that air is uniformly distributed upwards from the air distribution holes in the upper parts of the filter bricks, backwash water flows upwards from gaps among the filter bricks after flowing out along the water through holes in the lower parts of the filter bricks, and the backwash water and gas are stably and fully uniformly distributed on the bearing layer on the upper parts of the filter bricks, thereby improving backwashing efficiency and backwashing effect. The utility model discloses the filter brick can two or a plurality of head and the tail seal butt joint, according to the nimble increase and decrease of place size, main water hole is evenly opened in the bottom, and the album mud that catchments is cleaner thorough, and the filter brick adopts the HDPE material, and the material is stable, and life can reach 30 years.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

fig. 2 is a top view of an embodiment of the invention;

fig. 3 is a bottom view of an embodiment of the present invention;

fig. 4 is a schematic view of a sealing connection buckle structure adopted in the embodiment of the present invention;

in the figure, 1-a support plate, 2-an upper air hole, 3-a lower water hole, 4-a top air hole, 5-an air distribution channel, 6-a water distribution channel, 7-an air-water critical line, 8-a reinforcing rib, 9-a connecting device, 10-a bell and spigot, 11-an insertion block, 12-a first sealing reverse buckle, 13-a second sealing reverse buckle and 14-a third sealing reverse buckle.

Detailed Description

The invention is further explained with reference to the drawings and the embodiments.

As shown in fig. 1-4, it is a U-shaped air-water distribution filter brick, the filter brick body is a cuboid, the length is 1120mm, the width is 250mm, the height is 250mm, the cross section of the filter brick body is square, there is an inverted "U" shaped support plate 1 inside, the support plate 1 and the bottom wall of the filter brick body enclose to form an inverted "U" shaped air-water channel, there is a lower part water passing hole 3 on the bottom wall of the filter brick in the air-water channel, the diameter of the lower part water passing hole 3 is 15mm, there are 4 lower part water passing holes 3 in this embodiment, the horizontal distance of two adjacent lower part water passing holes 3 is 300mm, and the adjacent lower part water passing hole 3, one is closer to the left side, one is closer to the right side, the alternate arrangement, the pattern formed after the line of any adjacent 3 lower part water.

Two backup pads 1 and filter brick lateral wall and roof form the gas distribution chamber, and the left and right sides respectively has a gas distribution chamber, is equipped with upper portion gas passing hole 2 on backup pad 1, makes air water passageway and gas distribution chamber intercommunication, and the filter brick roof is equipped with top gas distribution hole 4, and the diameter of top gas distribution hole 4 is 3.5mm, and this embodiment roof is equipped with 120 top gas distribution holes 4 altogether.

The supporting plate 1 of the embodiment is positioned in the center of the filter brick cavity, so that two formed air distribution cavities are symmetrical, the upper air passing holes 2 in the supporting plate 1 are formed in the upper half part of the supporting plate 1, the vertical distance from the upper air passing holes 2 to the top point of the supporting plate 1 is about 3 times of the vertical height of the whole supporting plate 1, the number of the upper air passing holes 2 is multiple, the upper air passing holes 2 in the two side walls of the supporting plate 1 are symmetrical about the symmetry axis of the supporting plate, and all the upper air passing holes 2 are kept on the same horizontal plane.

The filter brick body of this embodiment is provided with 4 strengthening ribs, and evenly distributed is on the filter brick body, and the width of strengthening rib is 10mm, makes water flow to the top filter layer along filter brick clearance all around after can flowing out from lower part water hole 3.

The two ends of the filter brick body are provided with connecting devices 9, the connecting device 9 at one end is provided with a socket 10, the connecting device 9 at the other end is provided with an inserting block 11 matched with the socket 10, and the socket 10 and the inserting block 11 can be mutually clamped, so that the two filter bricks can be in end-to-end sealing butt joint. This embodiment is equipped with triple buckle and is first sealed back-off 12, the sealed back-off 13 of second, the sealed back-off 14 of third respectively, makes the connection of filter brick more stable, and sealed effect is better.

The filter brick of this embodiment uses the HDPE material to make, and this material is stable, and life can reach 30 years.

The utility model discloses what utilize is "gas light water is heavy, the gas is gone up the natural law of underwater", has avoided gas, water to come in and go out with the hole, the phenomenon of mutual interference, the work flow during recoil is:

1. the backflushing water and the compressed air are sent into a U-shaped air-water channel together;

2. after the backflushing water and the compressed air are sent into the U-shaped pipeline, according to the natural law, the air floats upwards and is distributed in the air distribution channel 5 at the upper part of the air-water channel, the backflushing water falls down and is distributed in the water distribution channel 6 at the lower part of the air-water channel, and finally an air-water critical line 7 is formed.

3. Backflushing water and compressed air are continuously fed into the U-shaped air-water channel, under the action of pressure, the air passes through the upper air passing holes 2, passes through the air distribution cavity, is uniformly discharged from the top air distribution holes 4 and enters the upper bearing layer, and meanwhile, the backflushing water flows out of the filter brick through the lower water passing holes 3 and flows to the upper bearing layer from the gaps around the filter brick.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. The utility model provides a U type air water distributes filter brick, includes the filter brick body, its characterized in that: the filter brick body cross-section is the rectangle, there is "U" shape backup pad (1) inside, backup pad (1) encloses with filter brick body diapire and closes the air water passageway that forms "U" shape, be equipped with lower part on the filter brick diapire in the air water passageway and cross water hole (3), backup pad (1) and filter brick lateral wall and roof form the gas distribution chamber, the left and right sides respectively has a gas distribution chamber, be equipped with upper portion gas pocket (2) on backup pad (1), make air water passageway and gas distribution chamber intercommunication, the filter brick roof is equipped with top gas distribution hole (4).

2. The U-shaped air-water distribution filter brick as claimed in claim 1, characterized in that: the support plate (1) is positioned in the center of the filter brick, so that the two formed air distribution cavities are symmetrical.

3. The U-shaped air-water distribution filter brick as claimed in any one of claims 1 or 2, wherein: the upper air passing hole (2) is formed in the upper half portion of the supporting plate (1), and the upper air passing hole (2) is located at a position closer to the arc top.

4. The U-shaped air-water distribution filter brick as claimed in claim 3, characterized in that: the upper air passing holes (2) on the supporting plate (1) are multiple, and all the air passing holes (2) are kept on the same horizontal plane.

5. The U-shaped air-water distribution filter brick as claimed in claim 1, characterized in that: the filter brick body is provided with a reinforcing rib (8), and the height of the reinforcing rib (8) is 10-20 mm.

6. The U-shaped air-water distribution filter brick as claimed in claim 1, characterized in that: and two ends of the filter brick body are provided with connecting devices (9), the connecting device (9) at one end is provided with a socket (10), and the connecting device (9) at the other end is provided with an inserting block (11) matched with the socket.

7. The U-shaped air-water distribution filter brick as claimed in claim 1, characterized in that: the filter bricks are made of HDPE (high density polyethylene) materials.