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

Abstract

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

Description

Technical Field

[0001] The invention relates to the field of water treatment, and in particular to a filter tank water outlet balancing device used in the field of water treatment. Background Art

[0002] At present, the filter tank of the water treatment plant generally uses a pipe to directly discharge water to the clear water tank during filtering work, but it is easily affected by the fluctuation of the liquid level in the clear water tank, causing the pollutants trapped by the filter bed of the filter tank to pass through the filter layer, seriously affecting the quality of the filtered water. In severe cases, it can lead to increased turbidity and harmful substances in the finished water of the clear water tank, and even cause unqualified water supply and cause water supply safety hazards. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a filter tank water outlet balancing device used in the field of water treatment. By setting a balancing chamber between the filter tank and the clean water tank, the amplitude of water level fluctuation can be effectively reduced, so that the filter tank can achieve constant filtration rate and constant water level filtration, thereby ensuring the long-term stability of the water quality of the filter tank filtered water.

[0004] The present invention is achieved through the following technical solutions.

[0005] A filter tank water balance device used in the field of water treatment includes a filter tank and a clean water tank, and also includes a balance chamber. The balance chamber is arranged between the filter tank and the clean water tank so that water from the filter tank flows to the clean water tank through the balance chamber. The balance chamber is open.

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

[0007] Furthermore, a water outlet area and a water collection area separated by a weir plate are arranged in the balance chamber, the outer side is the water outlet area, the middle is the water collection area, the water outlet area is connected to the filter tank, and the water collection area is connected to the clean water tank.

[0008] Furthermore, the balance 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 along the balance chamber in a circular direction and a gap is left to communicate with the clear water tank. If it is square, the two sides are the water outlet area and the middle is the water collection area.

[0009] Furthermore, the weir plate is composed of a vertical plate and an adjusting plate capable of making relative movement along the vertical plate in a height direction.

[0010] Furthermore, the bottom of the vertical plate is fixed to the bottom of the balancing chamber, and a plurality of mounting holes are arranged in the vertical direction of the adjustment plate, which is fixed to the vertical plate by bolts.

[0011] Furthermore, the balancing chamber is provided with a balancing chamber water inlet and a balancing chamber water outlet. The balancing chamber water inlet is connected to the filter tank, and the balancing chamber water outlet is connected to the clean water tank. A guide plate is arranged above the balancing chamber water inlet, which is composed of a horizontal plate and an inclined plate. The horizontal plate is fixed on the inner wall of the balancing chamber and extends in the flow direction of water entering the balancing chamber. The inclined plate is connected to the horizontal plate and tilted downward.

[0012] Furthermore, the filter tank is connected to the water inlet of the balancing chamber through the filter tank outlet pipe, the clean water tank is connected to the water outlet of the balancing chamber through the balancing chamber outlet pipe, and valves for controlling water flow interruption are arranged on the filter tank outlet pipe and the balancing chamber outlet pipe.

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

[0014] The beneficial effects of the present invention are:

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

[0016] 2. In the filter tank water outlet balance device provided by the present invention and applied in the field of water treatment, a weir plate is arranged in the balance chamber, and the water outlet volume can be controlled by adjusting the water outlet height of the weir plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure plane of the present invention;

[0018] Figure 2 for Figure 1 AA section view;

[0019] Figure 3 for Figure 1 BB section view;

[0020] Figure 4 It is a structural schematic diagram of the balance well of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the weir plate of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the guide plate of the present invention.

[0023] In the figure: 1-filter tank; 11-filter material; 12-filter cap; 13-filter tank outlet pipe; 2-balance well; 21-balance well water inlet; 22-balance well outlet; 3-clear water tank; 31-balance well outlet pipe; 4-weir plate; 41-vertical plate; 42-adjusting plate; 43-bolt; 5-water outlet area; 6-water collection area; 7-guide plate; 71-horizontal plate; 72-inclined plate; 8-filter tank backwash pipe. DETAILED DESCRIPTION

[0024] The following further describes the structures involved in the present invention or the technical terms used in these descriptions. These descriptions are only used as examples to illustrate how the methods of the present invention are implemented, and cannot constitute any limitation to the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, "connection", "fixation" and the like should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

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

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

[0029] The filter tank 1 refers to a water treatment structure in which raw water or wastewater passes through a filter medium to remove suspended insoluble substances in the solution. The filter material 11 and the filter cap 12 are arranged in sequence from top to bottom. Figure 1 , including two processes: filtration and backwashing.

[0030] The clean water tank 3 is used to store clean water after being purified by the filter tank, and is a regulating structure in the water supply system to adjust the uniform water supply of the water plant and meet the uneven water use of users.

[0031] This embodiment adopts a balance well, which is set underground to reduce the occupation of ground space.

[0032] like Figure 1 , 4 As shown, the balance well 2 is a square well, and a water outlet area 5 and a water collection area 6 separated by a weir plate 4 are arranged in the well, the two sides are the water outlet area 5, the middle is the water collection area 6, the water outlet area 5 is connected with the filter tank 1, and the water collection area 6 is connected with the clean water tank 3. The water flows into the water outlet area 5, and then turns over from the weir plate 4 to enter the water collection area 6. The water output is adjusted by the weir plate 4, which is conducive to the stable operation of the filter tank 1.

[0033] like Figure 5 As shown, the weir plate 4 is composed 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 is provided with a plurality of mounting holes in the vertical direction. The adjusting plate 42 is fixed to the vertical plate 41 by bolts 43. The water outlet height of the weir plate 4 can be adjusted by the bolts 43 to control the water outlet.

[0034] like Figure 6 As shown, the balancing well 2 is provided with a balancing well water inlet 21 and a balancing well water outlet 22. The balancing well water inlet 21 is connected to the filter tank 1, and the balancing well water outlet 22 is connected to the clean water tank 3. A guide plate 7 is arranged above the balancing well water inlet 21, which is composed of a horizontal plate 71 and an inclined plate 72. The horizontal plate 71 is fixed on the inner wall of the balancing well 2 and extends a certain length in the direction of the water flow entering the balancing well 2. The inclined plate 72 is connected to the horizontal plate 71 and tilted downward, so that the water flows downward, passes through the weir plate 4, and then turns out from the weir plate 4. Among them, the distance between the guide plate 7 and the balancing well water inlet 21 is appropriate, which plays a dual role of suppressing the surging flow and guiding.

[0035] like Figure 2 , 3 As shown, the filter tank 1 is connected to the balance well water inlet 21 through the filter tank outlet pipe 13, and the clean water tank 3 is connected to the balance well water outlet 22 through the balance well outlet pipe 31. Valves are set on the filter tank outlet pipe 11 and the balance well outlet pipe 31, and the water flow interruption and flow rate can be controlled by the valves.

[0036] like Figure 1As shown, the filter outlet pipe 11 is connected to the filter backwash pipe 8, and a valve is arranged on the filter backwash pipe 8. When the filter 1 has filtered for a cycle and the dirt intercepted by the filter material layer is saturated, the filter backwash is implemented. At this time, the filter outlet pipe valve is closed first, and the filter backwash pipe valve is opened, and clean water enters the filter 1 from the filter backwash pipe 8 to backwash the filter material. In this way, the balancing function of the balance well 2 cooperates with the filter 1 to complete a cycle of filtration balance and ensure the water quality and water quantity of the filtered water.

[0037] When the liquid level of the clean water tank 3 fluctuates, the inertia of the water flow will cause the filtration rate of the filter 1 to change, which will lead to an increase in the turbidity and harmful substances of the finished water of the clean water tank 2, and even unqualified water supply, which will cause water supply safety hazards, increase energy consumption, and increase operating costs. In particular, when the liquid level of the clean water tank 3 drops, the suction pressure of the filter bed of the filter increases, and the filtration rate increases, resulting in incomplete filtration of the finished water of the clean water tank 3, and increased turbidity and harmful substances. Usually, the height of the liquid level of the clean water tank 3 is 4 meters, and for every meter the liquid level of the clean water tank 3 drops, the suction pressure of the filter bed of the filter will increase by 0.1kg. When the liquid level of the clean water tank 3 drops to an extremely low water level, the pressure increases by 0.1-0.4kg. If the clean water tank is deep, the suction pressure will be greater. The present invention can effectively reduce the amplitude of water level fluctuation and accelerate the attenuation speed by setting a balance well 2 between the filter tank 1 and the clean water tank 3, so that the filter tank 1 can achieve constant filtration rate and constant water level filtration, ensure the long-term stability of the water quality of the filter tank filtrated water, and at the same time reduce water production energy consumption and save operating costs.

[0038] The working process of the present invention is as follows: water flows from the filter tank 1 through the filter tank outlet pipe 13 into the water outlet area 5 of the balance well 2, over the weir plate 4 into the water collection area 6, and then flows into the clean water tank 3 through the balance well outlet pipe 31; when the filter tank 1 has filtered for a cycle and the dirt intercepted by the filter material layer is saturated, the filter tank is backwashed. At this time, the filter tank outlet pipe valve is first closed, and the filter tank backwash pipe valve is opened, and clean water enters the filter tank 1 from the filter tank backwash pipe 8 to backwash the filter material.

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

Claims

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

2. The filter tank water balance device used in the water treatment field according to claim 1, characterized in that: The balance chamber is provided with a water outlet area and a water collection area separated by a weir plate, the outer side is the water outlet area, the middle is the water collection area, the water outlet area is connected with the filter tank, and the water collection area is connected with the clean water tank.

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

4. The filter tank water balance device used in the water treatment field according to claim 3 is characterized in that: The bottom of the vertical plate is fixed to the bottom of the balance chamber, and a plurality of mounting holes are arranged in the vertical direction of the adjustment plate, which is fixed to the vertical plate by bolts.

5. The filter tank water balance device used in the field of water treatment according to claim 1, characterized in that: The balancing chamber is provided with a balancing chamber water inlet and a balancing chamber water outlet. The balancing chamber water inlet is connected to the filter tank, and the balancing chamber water outlet is connected to the clean water tank. A guide plate is arranged above the balancing chamber water inlet, which is composed of a horizontal plate and an inclined plate. The horizontal plate is fixed on the inner wall of the balancing chamber and extends in the flow direction of water entering the balancing chamber. The inclined plate is connected to the horizontal plate and tilted downward.

6. The filter tank water balance device used in the field of water treatment according to claim 5, characterized in that: The filter tank is connected to the water inlet of the balance chamber through the filter tank outlet pipe, and the clean water tank is connected to the water outlet of the balance chamber through the balance chamber outlet pipe. Valves for controlling water flow interruption are arranged on the filter tank outlet pipe and the balance chamber outlet pipe.

7. The filter tank water balance device used in the field of water treatment according to claim 6, characterized in that: The filter tank outlet pipe is connected with a filter tank backwashing pipe, and a valve for controlling water flow interruption is arranged on the filter tank backwashing pipe.

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