Low-resistance water distribution device for D-shaped filter tank

Abstract

The utility model discloses a D-shaped filter tank low-resistance water distribution device, which relates to the technical field of filter tank water distribution and comprises a water distribution chamber, a water inlet pipe is fixedly communicated with the bottom of one end of the water distribution chamber, a water distribution channel is fixedly communicated with one end of the water inlet pipe, and a plurality of water distribution pipes are arranged at the top of the water distribution channel. A plurality of S-shaped communicating pipes are arranged between the water distribution channel and the water distribution pipe, and V-shaped water outlet grooves are fixed to the two sides of the top of the water distribution chamber. According to the utility model, the water distribution pipe spanning the water distribution channel is arranged, so that water flowing out of the water distribution pipe can apply uniform impact force to the filter material layer in the water distribution chamber, and the uniformity of water distribution is ensured; the two arc-shaped plates are used for relieving the impact of sewage inlet, so that the sewage flows in the water distribution channel and the S-shaped communicating pipe in an S shape, the impact force generated when the sewage enters the water distribution pipe is further relieved, and the water distribution pipe is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of filter tank water distribution, in particular to a D-type filter tank low-resistance water distribution device. Background Art

[0002] The D-type filter is a gravity-type, high-speed, adaptive filter, jointly developed by Tsinghua University and De'an Company. It is known that the water distribution system of a D-type filter typically includes components such as distribution channels and distribution pipes, which work together to evenly distribute raw water to the filter, ensuring that the filter media can effectively filter impurities in the water. Commonly used water distribution systems mainly include high-resistance water distribution systems and low-resistance water distribution systems. The low-resistance water distribution system is a system designed to reduce water flow resistance and improve fluid transmission efficiency. Therefore, low-resistance water distribution systems are widely used in fields such as urban water supply, industrial production, and farmland irrigation. Through reasonable design and material selection, this system can significantly reduce water flow resistance, improve water supply efficiency, and reduce energy consumption.

[0003] During sewage treatment, sewage first flows through a central distribution channel and into the distribution pipes on either side of the channel for distribution. For example, as shown in a filter tank water distribution system with prior art publication number CN218403697U, the distribution pipes are located on both sides of the channel. Consequently, the lack of distribution pipes directly above the channel causes uneven force on the filter media layer, affecting water distribution uniformity. Furthermore, in existing water distribution systems, the water flowing through the distribution channel into the distribution pipes exerts a certain impact force, which can easily damage the distribution pipes. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a D-type filter tank low-resistance water distribution device. By arranging a water distribution pipe across the water distribution channel, the water flowing out through the water distribution pipe can exert a uniform impact force on the filter material layer inside the water distribution chamber, ensuring the uniformity of water distribution, so as to solve the problem of poor water distribution effect caused by the lack of a water distribution pipe above the water distribution channel in the existing technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a D-type filter tank low-resistance water distribution device, comprising a water distribution chamber, a water inlet pipe is fixedly connected to the bottom of one end of the water distribution chamber, one end of the water inlet pipe is fixedly connected to a water distribution channel, a plurality of water distribution pipes are provided on the top of the water distribution channel, a plurality of S-shaped connecting pipes are provided between the water distribution channel and the water distribution pipes, and V-shaped water outlet grooves are fixed on both sides of the top of the water distribution chamber;

[0006] There are multiple through holes on the top of the water distribution pipe, and the through holes are equally spaced. The sewage in the water inlet pipe passes through the water distribution channel and the S-shaped connecting pipe in an S-shaped path, enters the water distribution pipe, and then evenly enters the water distribution chamber through the through holes on the water distribution pipe.

[0007] In a preferred embodiment, the water distribution channel includes an insulating shell for heat insulation, a water injection trough is fixed in the middle of the insulating shell, vertical partitions are provided on both sides of the water injection trough, one end of the water inlet pipe passes through the water distribution chamber and extends into the water injection trough, and the water flowing out of the water inlet pipe first enters the water injection trough in an S shape, then bypasses the bottom end of the arc plate, and finally enters the water distribution pipe through the bottom end of the S-shaped connecting pipe.

[0008] In a preferred embodiment, four arc-shaped plates made of elastic material are fixed inside the water injection trough. The four arc-shaped plates are divided into two groups of two. The two groups of arc-shaped plates are distributed up and down, and the two arc-shaped plates in each group are mirror-imaged with the midline of the vertical section of the water injection trough as the center.

[0009] In a preferred embodiment, an insulation layer for maintaining water temperature is fixed to the inner wall of the heat-insulating shell. The insulation materials used in the D-type filter are generally rock wool, glass wool, aerogel felt, etc. Rock wool is a commonly used insulation material with good thermal insulation and fire resistance. It is a fibrous material made from natural minerals such as basalt after high-temperature melting and has good thermal insulation performance; glass wool is a fibrous material made from recycled glass or quartz sand after high-temperature melting. Glass wool has good thermal insulation performance, corrosion resistance and stability; aerogel felt is a new type of insulation material. It is a composite material composed of aerogel and glass fiber. Aerogel felt has the properties of ultra-low thermal conductivity, excellent fire resistance, shock and vibration resistance, light weight and softness, and green environmental protection;

[0010] A water-blocking plate is fixed to the inner wall of the thermal insulation layer. The material of the water-blocking plate is usually plastic or rubber. Since these materials have good corrosion resistance and water resistance, they can be used in water for a long time without being damaged.

[0011] In a preferred embodiment, a concrete filter plate is fixed to the bottom end of the water distribution chamber. The concrete filter plate is located on the top of the water distribution pipe. A filter head can be installed on the concrete filter plate for use in the backwash process of the D-type filter tank.

[0012] In a preferred embodiment, a supporting layer is provided on the top of the concrete filter plate, and the supporting layer comprises, in order from top to bottom, a pebble layer, a crushed stone layer and a heavy ore layer.

[0013] In a preferred embodiment, a filter layer for filtering sewage is provided on the top of the supporting layer, and the filter layer is composed of comet-type fiber filter material. Comet-type fiber filter material is a new type of filter material, which combines the advantages of fiber filter material and particulate filter material to form a new type of filter material. The characteristic of this filter material is that one end is a loose fiber bundle, called a "comet tail", and the other end of the fiber bundle is fixed in a "comet nucleus" with a higher density. During the filtration process, the "comet nucleus" with a higher density has a compacting effect on the fiber bundle. At the same time, due to the small size of the "comet nucleus", it has little effect on the uniformity of the porosity distribution of the filtration section, thereby improving the pollution interception capacity of the D-type filter.

[0014] Compared with the existing technology, the utility model provides a D-type filter low resistance water distribution device, which has the following beneficial effects:

[0015] 1. The utility model sets a water distribution pipe across the water distribution channel so that the water flowing out through the water distribution pipe can exert a uniform impact force on the filter material layer inside the water distribution chamber, thereby ensuring the uniformity of water distribution, thereby solving the problem of poor water distribution effect caused by the lack of a water distribution pipe above the water distribution channel in the prior art.

[0016] 2. By using the water injection trough and the vertical partition to limit the flow direction of the sewage entering the inside of the insulation shell, the sewage can flow in an S shape. During the S-shaped flow, the turning of the water flow is used to slow down the impact force of the sewage flowing into the water distribution chamber. Moreover, the water flowing out of the insulation shell can continue to flow in an S shape under the guidance of the S-shaped connecting pipe, thereby further slowing down the impact force of the sewage flow, so as to avoid damage to the water distribution pipe caused by the impact force of the sewage flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an exploded view of the present utility model;

[0019] Figure 3 This is a structural diagram of the water distribution pipe and water distribution chamber of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the water distribution pipe, S-shaped connecting pipe, and water distribution channel of the utility model;

[0021] Figure 5 It is a cross-sectional view of the water distribution pipe, S-shaped connecting pipe and water distribution channel of the utility model.

[0022] In the picture:

[0023] 1 water distribution chamber, 2 water inlet pipe, 3 water distribution channel, 4 water distribution pipe, 5 S-shaped connecting pipe, 6 concrete filter plate, 7 supporting layer, 8 V-shaped water outlet trough;

[0024] 31 heat-insulating shell, 32 thermal insulation layer, 33 vertical partition, 34 water injection trough, 35 curved plate, 36 water-blocking plate. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] In order to address the shortcomings of existing technologies, such as Figure 1-4 As shown, the utility model provides a D-type filter tank low-resistance water distribution device, including a water distribution chamber 1, a water inlet pipe 2 is fixedly connected to the bottom of one end of the water distribution chamber 1, and one end of the water inlet pipe 2 is fixedly connected to a water distribution channel 3. A plurality of water distribution pipes 4 are provided on the top of the water distribution channel 3, and a plurality of S-shaped connecting pipes 5 are provided between the water distribution channel 3 and the water distribution pipes 4. V-shaped water outlet grooves 8 are fixed on both sides of the top of the water distribution chamber 1;

[0027] Moreover, in the present invention, a concrete filter plate 6 is fixed to the bottom end of the water distribution chamber 1, and the concrete filter plate 6 is located on the top of the water distribution pipe 4. A supporting layer 7 is provided on the top of the concrete filter plate 6, and the supporting layer 7 includes, in order from top to bottom, a pebble layer, a crushed stone layer and a heavy ore layer. It is known that the thermal insulation materials frequently used in D-type filter tanks generally include the following: rock wool: a commonly used thermal insulation material with good thermal insulation and fire resistance. It is a fibrous material made from natural minerals such as basalt after high-temperature melting, and has good thermal insulation performance; glass wool: a fibrous material made from recycled glass or quartz sand after high-temperature melting. Glass wool has good thermal insulation performance, corrosion resistance and stability; aerogel felt: a new type of thermal insulation material, which is a composite material composed of aerogel and glass fiber. Aerogel felt has the properties of ultra-low thermal conductivity, excellent fire resistance, shock and vibration resistance, light weight and softness, and green environmental protection;

[0028] A filter material layer for filtering sewage is provided on the top of the supporting layer 7, and the filter material layer is composed of comet-type fiber filter material. Comet-type fiber filter material is a new type of filter material, which combines the advantages of fiber filter material and particle filter material to form a new type of filter material. The characteristic of this filter material is that one end is a loose fiber bundle, called a "comet tail", and the other end of the fiber bundle is fixed in a denser "comet nucleus". During the filtration process, the denser "comet nucleus" plays a compacting role on the fiber bundle. At the same time, due to the small size of the "comet nucleus", it has little effect on the uniformity of the porosity distribution of the filtration section, thereby improving the pollution interception capacity of the D-type filter.

[0029] In order to improve the water distribution uniformity of the utility model, Figure 4As shown, the water distribution pipe 4 in the present invention lies across the top of the water distribution channel 3, and a plurality of through holes are opened on the top of the water distribution pipe 4, and the plurality of through holes are equally spaced. The sewage to be treated will enter the water distribution channel 3 through the water inlet pipe 2, and the water distribution channel 3 will buffer the impact force of the sewage. The buffered sewage will enter the water distribution pipe 4 through the S-shaped connecting pipe 5, and finally enter the water distribution chamber 1 evenly through the through holes on the water distribution pipe 4. Then the sewage passes through the concrete filter plate 6, the supporting layer 7 and the filter material layer from bottom to top to achieve filtration, and finally the filtered sewage flows out through the V-shaped outlet trough 8. In the above process, the through holes on the water distribution pipe 4 are evenly distributed at the bottom of the filter material layer, so that the water flowing out through the water distribution pipe 4 can evenly act on the filter material layer, thereby achieving the effect of uniform water distribution.

[0030] In addition, in the low resistance water distribution system, in order to reduce the impact of water flowing into the water distribution pipe 4, Figure 5 As shown, the water distribution channel 3 in the present invention includes a heat-insulating shell 31 for heat insulation, an insulation layer 32 for maintaining water temperature is fixed on the inner wall of the heat-insulating shell 31, and a water-blocking plate 36 is fixed on the inner wall of the insulation layer 32;

[0031] The insulation materials used in type D filters are usually rock wool, glass wool, aerogel felt, etc. Rock wool is a commonly used insulation material with good thermal insulation and fire resistance. It is a fibrous material made from natural minerals such as basalt after high-temperature melting, and has good thermal insulation performance; glass wool is a fibrous material made from recycled glass or quartz sand after high-temperature melting. Glass wool has good thermal insulation performance, corrosion resistance and stability; aerogel felt is a new type of insulation material, which is a composite material composed of aerogel and glass fiber. Aerogel felt has ultra-low thermal conductivity, excellent fire resistance, shock and vibration resistance, light weight and softness, and green and environmental protection. The material of the water barrier 36 is usually plastic or rubber, because these materials have good corrosion resistance and water resistance, and can be used in water for a long time without being damaged; the utility model is conducive to maintaining water temperature and preventing ice from forming in winter and ensuring the smooth flow of sewage through the setting of the insulation layer 32 and the water barrier 36.

[0032] A water injection trough 34 is fixed in the middle of the heat-insulating shell 31. Vertical partitions 33 are provided on both sides of the water injection trough 34. One end of the water inlet pipe 2 passes through the water distribution chamber 1 and extends into the water injection trough 34. The water flowing out of the water inlet pipe 2 first enters the water injection trough 34 in an S shape, then bypasses the bottom end of the arc plate 35 and finally enters the water distribution pipe 4 through the bottom end of the S-shaped connecting pipe 5. By making the sewage flow path S-shaped, the impact of the water flow is slowed down by the turning point, and four springs are fixed inside the water injection trough 34. The curved plates 35 are made of a flexible material. The four curved plates 35 are divided into two groups of two. The two groups of curved plates 35 are distributed up and down. The two curved plates 35 in each group are mirror-imaged with the midline of the vertical section of the water injection groove 34 as the center. The sewage entering the water injection groove 34 will squeeze the curved plates 35 to both sides during the upward flow process, and the elastic force of the curved plates 35 themselves will resist the impact of the sewage flow, thereby reducing the impact force of the sewage flow and preventing the water distribution pipe 4 from being damaged by the impact.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A D-type filter tank low resistance water distribution device, comprising a water distribution chamber (1), characterized in that: The bottom of one end of the water distribution chamber (1) is fixedly connected to a water inlet pipe (2), one end of the water inlet pipe (2) is fixedly connected to a water distribution channel (3), a plurality of water distribution pipes (4) are provided on the top of the water distribution channel (3), a plurality of S-shaped connecting pipes (5) are provided between the water distribution channel (3) and the water distribution pipes (4), and V-shaped water outlet grooves (8) are fixed on both sides of the top of the water distribution chamber (1); The top of the water distribution pipe (4) is provided with a plurality of through holes, and the plurality of through holes are evenly spaced. The sewage in the water inlet pipe (2) sequentially passes through the water distribution channel (3) and the S-shaped connecting pipe (5) in an S-shaped path, enters the interior of the water distribution pipe (4), and then evenly enters the interior of the water distribution chamber (1) through the through holes on the water distribution pipe (4).

2. A D-type filter low-resistance water distribution device according to claim 1, characterized in that: The water distribution channel (3) comprises a heat-insulating outer shell (31) for heat insulation, a water injection groove (34) is fixed in the middle of the heat-insulating outer shell (31), and vertical partitions (33) are provided on both sides of the water injection groove (34). One end of the water inlet pipe (2) passes through the water distribution chamber (1) and extends into the water injection groove (34). Water flowing out of the water inlet pipe (2) first enters the water injection groove (34) in an S-shape, then bypasses the bottom end of the arc plate (35) and finally enters the water distribution pipe (4) through the bottom end of the S-shaped connecting pipe (5).

3. A D-type filter low-resistance water distribution device according to claim 2, characterized in that: Four arc-shaped plates (35) made of elastic material are fixed inside the water injection groove (34). The four arc-shaped plates (35) are divided into two groups with two as a group. The two groups of arc-shaped plates (35) are distributed up and down. The two arc-shaped plates (35) in each group are distributed in a mirror image with the midline of the vertical section of the water injection groove (34) as the center.

4. A D-type filter low-resistance water distribution device according to claim 2, characterized in that: A heat-insulating layer (32) for maintaining water temperature is fixed on the inner wall of the heat-insulating shell (31), and a water-blocking plate (36) is fixed on the inner wall of the heat-insulating layer (32).

5. The D-type filter low-resistance water distribution device according to claim 1, characterized in that: A concrete filter plate (6) is fixed to the bottom end of the water distribution chamber (1), and the concrete filter plate (6) is located on the top of the water distribution pipe (4).

6. A D-type filter low-resistance water distribution device according to claim 5, characterized in that: A supporting layer (7) is provided on the top of the concrete filter plate (6), and the supporting layer (7) comprises, in order from top to bottom, a pebble layer, a crushed stone layer, and a heavy ore layer.

7. A D-type filter low-resistance water distribution device according to claim 6, characterized in that: A filter material layer for filtering sewage is provided on the top of the supporting layer (7), and the filter material layer is composed of comet-type fiber filter material.

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