Primary filter tank

Abstract

The utility model relates to the technical field of water treatment, and discloses a primary filter tank, which comprises a plurality of primary filter sub-tanks and an overflow tank, the plurality of primary filter sub-tanks are sequentially distributed along the feeding direction, the plurality of primary filter sub-tanks are communicated with one another, and the plurality of primary filter sub-tanks are used for carrying out primary filter processing on raw water; the overflow pool is located at the rear end of the feeding direction of the plurality of primary filtering sub-pools, the overflow pool is communicated with the primary filtering sub-pools, an overflow channel is arranged at the top of the overflow pool, the overflow channel stretches across the overflow pool, and the overflow channel is used for overflowing and outputting water in the overflow pool. The filtering device has the beneficial effects of high filtering efficiency and low filtering cost.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a primary filtering pool. Background Art

[0002] Water is a commonly used resource in daily life and industrial production. In order to improve the safety and convenience of people's water use, water treatment plants usually purify and disinfect water resources to produce water that meets the corresponding standards for people's life and production. Domestic water is mainly obtained from rivers, lakes, groundwater and surface water through the water plant's water intake pump station. The water plant is treated by sedimentation, disinfection, filtration and other process processes in accordance with the "National Health Standards for Drinking Water", and finally delivered to each user through the water distribution pump station.

[0003] For example, a patent document with publication number CN113415916A discloses a tap water treatment system, including a water intake pump station, a water treatment system body, an ultrafiltration tank, a clear water tank, a disinfection tank and a water delivery pump room which are connected in sequence through a water supply pipeline. The water treatment system body includes a preliminary treatment system and a deep treatment system which are connected in sequence through a water supply pipeline. The preliminary treatment system includes an ozone contact tank, a raw water tank, a raw water lifting pump, a flocculation sedimentation tank and a sand filter which are connected in sequence through a water supply pipeline. The deep treatment system includes a precision filtration filter, an iron and manganese removal filter, a hollow fiber adsorption layer, a diatomaceous earth adsorption layer and an activated carbon adsorption layer which are connected in sequence through a water supply pipeline. The above technical scheme performs deep filtration on the raw water through the sand filter in the preliminary treatment system and the precision filtration filter and the iron and manganese removal filter in the deep treatment system. Finally, the ultrafiltration membrane in the ultrafiltration tank intercepts the microorganisms originally contained in the water, completes the sufficient filtration treatment of the raw water, and ensures the quality of the tap water.

[0004] Although the above technical scheme can achieve sufficient filtration treatment of raw water and ensure the quality of tap water, the raw water of tap water is usually extracted from outdoor water sources such as rivers, lakes, and reservoirs, and the raw water usually contains a large amount of silt impurities. When treating the raw water, the above technical scheme separates the silt impurities in the raw water through flocculation and sedimentation, and then needs to filter the impurities after flocculation and sedimentation through multiple adsorption layers, which makes the process complicated in the tap water production process and increases the filtration cost. Utility Model Content

[0005] The utility model aims to provide a primary filtering pool to solve the technical problem in the prior art that the impurities after flocculation and precipitation need to be filtered through multiple adsorption layers, resulting in complex processes in the tap water production process.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a primary filtering pool, comprising a plurality of primary filtering sub-pools and an overflow pool, wherein the plurality of primary filtering sub-pools are distributed in sequence along the feeding direction, the plurality of primary filtering sub-pools are interconnected, and the plurality of primary filtering sub-pools are used for performing primary filtering processing on raw water; the overflow pool is located at the rear end of the feeding direction of the plurality of primary filtering sub-pools, the overflow pool is connected with the primary filtering sub-pools, an overflow channel is provided on the top of the overflow pool, the overflow channel spans the overflow pool, and the overflow channel is used for overflowing and outputting the water in the overflow pool.

[0007] The principle and advantage of this scheme are: when the water is subjected to primary filtration processing, the water is transported to primary filtration sub-tanks arranged in sequence, the water flows in multiple primary filtration sub-tanks in sequence, and the water after the primary filtration is transported to the overflow tank through a pipeline, the water after the primary filtration spreads upward in the overflow tank, and when the horizontal plane reaches the top of the overflow channel, it enters the overflow channel under the overflow action, and is transported to the next processing step through the overflow channel.

[0008] In this scheme, after the water is initially filtered, the filtered water is transported to the overflow channel, and the flocculated sediment in the water is filtered under the action of the overflow, thereby preventing the flocculated sediment from being transported together with the water after the initial filtration. As a result, when the water is further filtered, other adsorption devices are required to adsorb and filter the flocculated sediment in the water, thereby ensuring the quality of the water filtration processing, simplifying the water filtration processing process, improving the water filtration processing efficiency, and reducing the cost of the water filtration processing.

[0009] Preferably, as an improvement, the input port of the overflow pool is located at the bottom of the overflow pool; a plurality of water inlet pipes are laid at the bottom of the overflow pool, and the plurality of water inlet pipes are closely arranged at the bottom of the overflow pool, and the water inlet pipes are inclined to one side along the height direction. When water is input into the overflow pool, it can be tilted under the action of the water inlet pipes, reducing the disturbance and vortex generated in the water of the overflow pool under the pressure of the incoming water, avoiding the impact of the input water on the water in the overflow pool, causing impurities to be transported to the top with the water flow, and affecting the effect of overflow filtration.

[0010] Preferably, as an improvement, the angle between the water inlet pipe and the bottom of the overflow pool is 45°-90°, so that when water is transported in the water inlet pipe, it can flow smoothly and adjust the speed and flow direction of the water, so as to separate impurities in the water during the water intake process.

[0011] Preferably, as an improvement, the end of the water inlet pipe close to the bottom of the overflow pool is spaced apart from the bottom of the overflow pool, so that after the water and impurities are separated, the water can move upwards, while the impurities in the water are accumulated in the cavity of the bottom of the overflow pool under the action of gravity, so that the impurities deposited at the bottom of the overflow pool are blocked by the inclined water inlet pipe, so that the water is prevented from carrying impurities to the water surface after being discharged from the water inlet pipe, which affects the effect of overflow filtration.

[0012] Preferably, as an improvement, the top opening of the overflow channel is lower than the top of the overflow pool; multiple arc-shaped openings are provided on the side walls on both sides of the top of the overflow channel, and the multiple arc-shaped openings are evenly distributed at the top of the overflow channel along the extending direction of the overflow channel. When water overflows into the overflow channel under the overflow effect, the flow rate during the overflow can be controlled under the obstruction of the arc-shaped openings on the side walls of the overflow channel, so as to avoid the overflow channel top opening being too large during the overflow process, causing the water to quickly flow into the overflow channel under the action of tension, affecting the overflow filtering effect of the overflow channel on the water.

[0013] Preferably, as an improvement, the overflow channel includes multiple overflow channels, the multiple overflow channels are parallel to each other, and the multiple overflow channels are spaced apart on the overflow pool. While filtering the water through the overflow action to ensure the water filtering effect, multiple overflow channels are set to perform overflow filtration at the same time to ensure that the overflow pool can have sufficient output efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the primary filter tank in the embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the overflow tank in the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The reference numerals in the drawings of the specification include: primary filtering sub-tank 1 , water delivery pipe 101 , overflow tank 2 , water inlet pipe 201 , overflow channel 202 , arc-shaped opening 203 , and water outlet pipe 3 .

[0018] As attached Figure 1 As shown, a primary filtration pool includes multiple primary filtration sub-pools 1 and an overflow pool 2. The multiple primary filtration sub-pools 1 are interconnected. The multiple primary filtration sub-pools 1 are used to perform primary filtration processing on raw water, and the overflow pool 2 is used to perform overflow filtration on water filtered by the primary filtration sub-pools 1.

[0019] Multiple primary filter sub-pools 1 are distributed in sequence along the feeding direction, wherein the primary filter sub-pool 1 at the head end of the feeding direction is connected to the water delivery device through a pipeline. Multiple primary filter sub-pools 1 are interconnected through a water delivery pipe 101, and the water to be filtered flows in each primary filter sub-pool 1 in sequence, realizing multiple cycles of filtering of the water. Specifically, impurities in the water are filtered through a filtering device in each primary filter sub-pool 1, wherein the specific content of filtering impurities in the water by the primary filter pool is prior art and will not be repeated here. The water is filtered in sequence through multiple primary filter sub-pools 1 to ensure the effect of water filtering in the primary filter pool.

[0020] The primary filter pools include 10-15, and preferably in this embodiment, 14 primary filter sub-pools 1 are provided in the primary filter pool. This allows the raw water to be fully filtered in multiple primary filter sub-pools 1, ensuring the primary filtering effect of the raw water while avoiding too many primary filter sub-pools 1, which results in too long time of primary filtering of the raw water, reduces the efficiency of primary filtering of the raw water, and increases the operation and maintenance cost of the primary filter pool.

[0021] The primary filtering sub-tank 1 at the tail end of the feeding direction is connected to the outlet pipe 3, and the end of the outlet pipe 3 away from the primary filtering sub-tank 1 is connected to the input port of the overflow tank 2, wherein the input port of the overflow tank 2 is located at the bottom of the overflow tank 2. Figure 2 As shown, a plurality of water inlet pipes 201 are laid at the bottom of the overflow pool 2, and the plurality of water inlet pipes 201 are closely arranged at the bottom of the overflow pool 2, and the water inlet pipes 201 are inclined to one side along the height direction, and the central axis of the specific water inlet pipe 201 is inclined to one side along the height direction and extends upward. When water is input into the overflow pool 2, it can be tilted under the action of the water inlet pipe 201, reducing the disturbance and vortex generated in the water of the overflow pool 2 under the pressure of the water inlet, avoiding the impact of the input water on the water in the overflow pool 2, causing impurities to be transported to the top with the water flow, affecting the effect of overflow filtration. The angle between the water inlet pipe 201 and the bottom of the overflow pool 2 is an acute angle between 45°-90°, and preferably in this embodiment, the angle between the water inlet pipe 201 and the bottom of the overflow pool 2 is 60°. When water is transported in the water inlet pipe 201, it can flow smoothly, and the speed and flow direction of the water can be adjusted, so as to facilitate the separation of impurities in the water during the water inlet process.

[0022] The water inlet pipe 201 is spaced apart from the bottom of the overflow pool 2 at one end thereof, that is, the water inlet pipe 201 is suspended above the bottom of the overflow pool 2, and a cavity is reserved between the bottom of the overflow pool 2 and the water inlet pipe 201. Specifically, a plurality of water inlet pipes 201 are fixedly connected to the side wall of the overflow pool 2 through a bracket by bolts. When in use, water is transported from the water inlet to the cavity between the bottom of the overflow pool 2 and the water inlet pipe 201, and then transported upward through the water inlet pipe 201 to the overflow pool 2. The distance between the bottom of the overflow pool 2 and the water inlet pipe 201 is 10-20 cm, and preferably, in the embodiment, the distance between the bottom of the overflow pool 2 and the water inlet pipe 201 is 10 cm. After the water and impurities are separated, the water can move upward, and the impurities in the water are accumulated in the cavity on the bottom of the overflow tank 2 under the action of gravity, so that the impurities deposited on the bottom of the overflow tank 2 are blocked by the inclined water inlet pipe 201, preventing the water from carrying impurities to the water surface after being discharged from the water inlet pipe 201, thereby affecting the effect of overflow filtration.

[0023] An overflow channel 202 is fixedly installed on the top of the overflow tank 2 by bolts. The overflow channel 202 spans the overflow tank 2. The top opening of the overflow channel 202 is lower than the top of the overflow tank 2. After the filtered water is transported to the overflow tank 2, the filtered water at the top of the overflow tank 2 flows into the overflow tank 2 under the overflow effect. The impurities in the filtered water are precipitated at the bottom of the overflow tank 2, thereby filtering the impurities in the filtered water. The filtered water is filtered by overflow, so that the impurities and sediments in the filtered water can be precipitated in the overflow tank 2, thereby improving the purity of the filtered water.

[0024] The overflow channel 202 includes a plurality of overflow channels 202, which are parallel to each other and are spaced apart on the overflow pool 2. The overflow channel 202 is used to transport the primary filtered water filtered in the overflow pool 2 to the next processing step. A plurality of arc openings 203 are provided on the side walls on both sides of the overflow channel 202, wherein the arc openings 203 are located at the top of the overflow channel 202, and the plurality of arc openings 203 are evenly distributed at the top of the overflow channel 202 along the extending direction of the overflow channel 202, so that a wave-shaped bulge is formed on the top of the side wall of the overflow channel 202. When water overflows into the overflow channel 202 under the overflow action, the flow rate during the overflow can be controlled under the obstruction of the arc-shaped opening 203 on the side wall of the overflow channel 202, thereby preventing the top opening of the overflow channel 202 from being too large during the overflow process, causing the water to quickly flow into the overflow channel 202 under the action of tension, thereby affecting the overflow filtering effect of the overflow channel 202 on the water.

[0025] The specific implementation process is as follows:

[0026] When the water is subjected to primary filtration processing, the water is transported to the primary filtration sub-tanks 1 arranged in sequence, and the water flows in the multiple primary filtration sub-tanks 1 in sequence to complete the initial filtration of the water. The water after the initial filtration is transported to the bottom of the overflow tank 2 through a pipeline, and the water after the initial filtration passes through the water inlet pipe 201 at the bottom of the overflow tank 2 and spreads upward. When the horizontal plane reaches the top of the overflow channel 202, it enters the overflow channel 202 under the overflow action, and is transported to the next processing step through the overflow channel 202.

[0027] Compared with the prior art, in this solution, after the water is initially filtered, the filtered water is transported to the overflow channel 202, and the flocculated sediment in the water is filtered under the action of the overflow, thereby avoiding the flocculated sediment being transported together with the water after the initial filtration, resulting in the need for other adsorption devices to adsorb and filter the flocculated sediment in the water when the water is further filtered. While ensuring the quality of the water filtration processing, the water filtration processing process is simplified, the water filtration processing efficiency is improved, and the cost of the water filtration processing is reduced.

[0028] The above are only embodiments of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A primary filtration tank, characterized in that: It includes a plurality of primary filtering sub-pools and an overflow pool, wherein the plurality of primary filtering sub-pools are sequentially distributed along the feeding direction and are interconnected, and the plurality of primary filtering sub-pools are used for performing primary filtering processing on raw water; the overflow pool is located at the rear end of the plurality of primary filtering sub-pools in the feeding direction, the overflow pool is connected with the primary filtering sub-pool, an overflow channel is provided on the top of the overflow pool, the overflow channel spans the overflow pool, and the overflow channel is used for overflowing and outputting the water in the overflow pool.

2. A primary filtration tank according to claim 1, characterized in that: The input port of the overflow pool is located at the bottom of the overflow pool; a plurality of water inlet pipes are laid at the bottom of the overflow pool, and the plurality of water inlet pipes are closely arranged at the bottom of the overflow pool, and the water inlet pipes are inclined to one side along the height direction.

3. A primary filtration tank according to claim 2, characterized in that: The angle between the water inlet pipe and the bottom of the overflow tank is 45°-90°.

4. A primary filtration tank according to claim 2, characterized in that: The end of the water inlet pipe close to the bottom of the overflow pool is spaced apart from the bottom surface of the overflow pool.

5. A primary filtration tank according to claim 1, characterized in that: The top opening of the overflow channel is lower than the top of the overflow pool; a plurality of arc-shaped openings are arranged on the side walls on both sides of the top of the overflow channel, and the plurality of arc-shaped openings are evenly distributed at the top of the overflow channel along the extending direction of the overflow channel.

6. A primary filtration tank according to claim 1, characterized in that: The overflow channels include a plurality of overflow channels, the plurality of overflow channels are parallel to each other, and the plurality of overflow channels are distributed at intervals on the overflow pool.

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