Filter tank outlet water balancing device applied to field of water treatment

Abstract

The utility model discloses a filter tank outlet water balancing device applied to the field of water treatment, which comprises a filter tank, a clean water tank and a balancing chamber, the balancing chamber is arranged between the filter tank and the clean water tank to enable water from the filter tank to flow to the clean water tank through the balancing chamber, and the balancing chamber is opened. According to the filter tank outlet water balancing device applied to the field of water treatment, the balancing chamber is arranged between the filter tank and the clean water tank, so that the fluctuation amplitude of the water level can be effectively reduced, the filter tank can achieve constant-filtering-speed and constant-water-level filtering, the long-period stability of the quality of water filtered by the filter tank is ensured, the water production energy consumption is reduced, and the operation cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment, specifically to a filter bed water balance device used in the field of water treatment. Background Technology

[0002] Currently, water treatment plant filters typically use pipes to directly discharge water into the clear water tank during filtration. However, this process is highly susceptible to fluctuations in the clear water tank's liquid level, causing pollutants trapped in the filter bed to penetrate the filter layer. This severely affects the quality of the filtered water, potentially leading to increased turbidity and harmful substances in the finished water from the clear water tank. In severe cases, it can even result in substandard water supply and pose a safety hazard to the water supply. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a filter bed water balancing device for use in water treatment. By setting up a balancing chamber between the filter bed and the clear water tank, the amplitude of water level fluctuations can be effectively reduced, enabling the filter bed to achieve constant filtration rate and constant water level, thus ensuring the long-term stability of the filtered water quality.

[0004] This utility model is achieved through the following technical solution.

[0005] A filter bed water balancing device for use in water treatment includes a filter bed and a clear water tank, and also includes a balancing chamber. The balancing chamber is disposed between the filter bed and the clear water tank so that water from the filter bed flows through the balancing chamber to the clear water tank. The balancing chamber is open.

[0006] Furthermore, the balancing chamber can be entirely underground, such as a balancing well, or partially underground and partially above ground, or entirely above ground.

[0007] Furthermore, the balance chamber is equipped with an outlet area and a collection area separated by a weir plate. The outer side is the outlet area, and the middle is the collection area. The outlet area is connected to the filter tank, and the collection area is connected to the clear water tank.

[0008] Furthermore, the balancing chamber can be circular, square, etc. If it is circular, the water collection area is in the central area, and the water outlet area is arranged around the balancing chamber with a gap connecting it to the clear water tank. If it is square, the two sides are the water outlet areas, and the middle is the water collection area.

[0009] Furthermore, the weir plate consists of a vertical plate and an adjusting plate that can move relative to the vertical plate in the height direction.

[0010] Furthermore, the bottom of the vertical plate is fixed to the bottom of the balance chamber, and multiple mounting holes are provided in the vertical direction of the adjustment plate, which is fixed to the vertical plate by bolts.

[0011] Furthermore, the balance chamber is provided with a balance chamber inlet and a balance chamber outlet. The balance chamber inlet is connected to the filter tank, and the balance chamber outlet is connected to the clear water tank. A guide plate is provided above the balance chamber inlet, which consists of a horizontal plate and an inclined plate. The horizontal plate is fixed to the inner wall of the balance chamber and extends in the direction of water flow into the balance chamber. The inclined plate is connected to the horizontal plate and tilts downward.

[0012] Furthermore, the filter tank is connected to the inlet of the balance chamber via a filter tank outlet pipe, and the clear water tank is connected to the outlet of the balance chamber via a balance chamber outlet pipe. Valves for controlling the flow of water are installed on the filter tank outlet pipe and the balance chamber outlet pipe.

[0013] Furthermore, the filter outlet pipe is connected to a filter backwash pipe, and a valve for controlling the flow of water is installed on the filter backwash pipe.

[0014] The beneficial effects of this utility model are:

[0015] 1. In the application of this utility model in the water treatment field of filter bed water balance device, by setting a balance chamber between the filter bed and the clear water tank, the amplitude of water level fluctuation can be effectively reduced, so that the filter bed can achieve constant filtration rate and constant water level filtration, ensuring the long-term stability of the filtered water quality, while reducing water production energy consumption and saving operating costs.

[0016] 2. In the filter bed water balance device provided by this utility model, which is applied in the field of water treatment, a weir plate is set in the balance chamber, and the water output can be controlled by adjusting the water output height of the weir plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 AA-direction cross-sectional view;

[0019] Figure 3 for Figure 1 BB-direction cross-sectional view;

[0020] Figure 4 This is a schematic diagram of the structure of the balance well of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the weir plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the guide plate of this utility model.

[0023] In the diagram: 1-Filter tank; 11-Filter media; 12-Filter cap; 13-Filter tank outlet pipe; 2-Balancing well; 21-Balancing well inlet; 22-Balancing well outlet; 3-Clear water tank; 31-Balancing well outlet pipe; 4-Weir plate; 41-Vertical plate; 42-Adjusting plate; 43-Bolt; 5-Outlet area; 6-Collection area; 7-Guide plate; 71-Horizontal plate; 72-Inclined plate; 8-Filter tank backwashing pipe. Detailed Implementation

[0024] The following description further explains the structures involved in this utility model and the technical terms used therein. These descriptions are merely illustrative of how this utility model is implemented and do not constitute any limitation on this utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, terms such as "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] like Figure 1-6 As shown in the figure, this embodiment introduces a filter water balancing device applied in the field of water treatment, including a filter 1, a clear water tank 3 and a balancing well 2. The balancing well 2 is set between the filter 1 and the clear water tank 3 so that the water from the filter 1 flows to the clear water tank 3 through the balancing well 2. That is, the inlet 21 of the balancing well is connected to the filter 1, the outlet 22 of the balancing well is connected to the clear water tank 3, and the balancing well 2 is set open.

[0028] Among them, filter beds are used in various waterworks, sewage treatment plants, ecological water purification plants or sewage treatment engineering facilities, etc.

[0029] Filter tank 1 refers to a water treatment structure that removes suspended insoluble substances from raw water or wastewater by passing it through a filter medium. Internally, from top to bottom, filter media 11 and filter caps 12 are arranged sequentially. (See [reference]) Figure 1It includes two processes: filtration and backwashing.

[0030] Clear water tank 3 is a regulating structure used to store clear water purified by the filter and to regulate the water supply of the water plant to ensure uniform water supply and meet the uneven water demand of users in the water supply system.

[0031] This embodiment uses a balanced well, which is located underground, thus reducing the space occupied above ground.

[0032] like Figure 1 , 4 As shown, the balancing well 2 is a square well, with an outlet zone 5 and a collection zone 6 separated by a weir plate 4. The outlet zones 5 are on both sides, and the collection zone 6 is in the middle. The outlet zones 5 are connected to the filter tank 1, and the collection zone 6 is connected to the clear water tank 3. Water flows into the outlet zone 5, then overflows from the weir plate 4 into the collection zone 6. The flow rate is regulated by the weir plate 4, which is beneficial to the stable operation of the filter tank 1.

[0033] like Figure 5 As shown, the weir plate 4 consists of a vertical plate 41 and an adjusting plate 42 that can move relative to the vertical plate 41 in the height direction. The bottom of the vertical plate 41 is fixed to the bottom of the balance well 2. The adjusting plate 42 has multiple mounting holes in the vertical direction and is fixed to the vertical plate 41 by bolts 43. The outlet height of the weir plate 4 can be adjusted by the bolts 43, thereby controlling the outlet flow rate.

[0034] like Figure 6 As shown, the balancing well 2 is equipped with a balancing well inlet 21 and a balancing well outlet 22. The balancing well inlet 21 is connected to the filter tank 1, and the balancing well outlet 22 is connected to the clear water tank 3. A guide plate 7 is installed above the balancing well inlet 21, which consists of a horizontal plate 71 and an inclined plate 72. The horizontal plate 71 is fixed to the inner wall of the balancing well 2 and extends a certain length in the direction of water flow into the balancing well 2. The inclined plate 72 is connected to the horizontal plate 71 and tilts downward, causing the water to flow downward, pass through the weir plate 4, and then bend out by the weir plate 4. The distance between the guide plate 7 and the balancing well inlet 21 is appropriate, which plays a dual role of suppressing the surge and guiding the flow.

[0035] like Figure 2 , 3 As shown, filter 1 is connected to the inlet 21 of the balance well via filter outlet pipe 13, and clear water tank 3 is connected to the outlet 22 of the balance well via balance well outlet pipe 31. Valves are installed on filter outlet pipe 11 and balance well outlet pipe 31, which can control the flow of water and the flow rate.

[0036] like Figure 1As shown, the filter outlet pipe 11 is connected to the filter backwash pipe 8, and a valve is installed on the filter backwash pipe 8. When the filter 1 has completed one filtration cycle and the filter media is saturated with contaminants, backwashing is performed. At this time, the filter outlet pipe valve is closed first, and the filter backwash pipe valve is opened. Clean water enters the filter 1 from the filter backwash pipe 8 to backwash the filter media. In this way, the balancing function of the balancing well 2, together with the filtration of the filter 1, completes the filtration balance of one cycle and ensures both the quality and quantity of the filtered water.

[0037] When the water level in clear water tank 3 fluctuates, the inertia of the water flow causes changes in the filtration rate of filter bed 1. This leads to increased turbidity and harmful substances in the finished water from clear water tank 2, potentially causing substandard water supply and posing a safety hazard. It also increases energy consumption and operating costs. In particular, when the water level in clear water tank 3 drops, the suction pressure of the filter bed increases, and the filtration rate rises, resulting in incomplete filtration of the finished water from clear water tank 3, leading to increased turbidity and harmful substances. Typically, the water level in clear water tank 3 is 4 meters high. For every meter the water level drops, the suction pressure of the filter bed increases by 0.1 kg. When the water level in clear water tank 3 drops to an extremely low level, the pressure increases by 0.1–0.4 kg. If the clear water tank is deep, the suction pressure will be even greater. This invention, by setting a balancing well 2 between the filter tank 1 and the clear water tank 3, can effectively reduce the amplitude of water level fluctuations and accelerate the decay rate, enabling the filter tank 1 to achieve constant filtration rate and constant water level filtration, ensuring the long-term stability of the filtered water quality, while reducing water production energy consumption and saving operating costs.

[0038] The working process of this utility model is as follows: Water flows from the filter tank 1 through the filter tank outlet pipe 13 into the outlet area 5 of the balance well 2, over the weir plate 4 into the collection area 6, and then flows into the clear water tank 3 through the balance well outlet pipe 31; when the filter tank 1 filters for one cycle and the filter media layer is saturated with dirt, the filter tank is backwashed. At this time, the filter tank outlet pipe valve is closed first, and the filter tank backwash pipe valve is opened. Clear water enters the filter tank 1 from the filter tank backwash pipe 8 to backwash the filter media.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter bed water balance device used in water treatment, comprising a filter bed and a clear water tank, characterized in that: It also includes a balancing chamber, which is located between the filter tank and the clear water tank so that water from the filter tank flows through the balancing chamber to the clear water tank. The balancing chamber is open.

2. The filter bed water balance device applied in the field of water treatment according to claim 1, characterized in that: The balance chamber is divided into an outlet area and a collection area by a weir plate. The outer side is the outlet area and the middle is the collection area. The outlet area is connected to the filter tank and the collection area is connected to the clear water tank.

3. The filter bed water balance device applied in the field of water treatment according to claim 2, characterized in that: The weir plate consists of a vertical plate and an adjusting plate that can move relative to the vertical plate in the height direction.

4. The filter bed water balance device applied in the field of water treatment according to claim 3, characterized in that: The bottom of the vertical plate is fixed to the bottom of the balance chamber, and the adjusting plate is provided with multiple mounting holes in the vertical direction and is fixed to the vertical plate by bolts.

5. The filter bed water balance device applied in the field of water treatment according to claim 1, characterized in that: The balance chamber is equipped with a balance chamber inlet and a balance chamber outlet. The balance chamber inlet is connected to the filter tank, and the balance chamber outlet is connected to the clear water tank. A guide plate is installed above the balance chamber inlet, which consists of a horizontal plate and an inclined plate. The horizontal plate is fixed to the inner wall of the balance chamber and extends in the direction of water flow into the balance chamber. The inclined plate is connected to the horizontal plate and tilts downward.

6. The filter bed water balance device applied in the field of water treatment according to claim 5, characterized in that: The filter tank is connected to the inlet of the balance chamber via a filter tank outlet pipe, and the clear water tank is connected to the outlet of the balance chamber via a balance chamber outlet pipe. Valves are installed on the filter tank outlet pipe and the balance chamber outlet pipe to control the flow of water.

7. The filter bed water balance device applied in the field of water treatment according to claim 6, characterized in that: The filter outlet pipe is connected to a filter backwash pipe, and a valve is installed on the filter backwash pipe to control the flow of water.

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