Integrated denitrification filter tank system

Abstract

The utility model provides an integrated denitrification filter tank system, which relates to the technical field of mechanical equipment and comprises a filter tank and a filter layer arranged in the filter tank, the filter layer comprises filter bricks, a supporting layer and a filter material layer which are sequentially arranged in the filter tank from bottom to top, the integrated denitrification filter tank system further comprises a flushing system and a distribution water tank, and the filter bricks are matched with the flushing system. The distribution water tanks are arranged on at least one side of the filter tank, overflow ports for overflowing water in the distribution water tanks into the filter tank are formed in the surfaces, adjacent to the filter tank, of the distribution water tanks, and the two ends of each overflow port correspond to the two ends or the outer sides of the two ends of the corresponding filter tank side inner filter layer respectively. The overflow port of the distribution water tank ensures that water flow can be uniformly distributed along the width of the filtering layer, so that local overload is avoided, and the filtering uniformity and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to an integrated denitrification filter tank system. Background Art

[0002] The water treatment filter tank is an indispensable part of the modern water treatment process, which is used to remove suspended solids, microorganisms, organic matters and other impurities in water to ensure that the water quality meets the discharge standard or drinking standard. The traditional filter tank system mainly includes key components such as a filter tank, a filter layer, and a flushing system. The filter tank is a container that houses the filter layer and receives and stores the water to be treated. The filter layer usually includes filter bricks, a supporting layer, and a filter media layer. The filter media layer is responsible for intercepting and removing impurities in water. The supporting layer supports the filter media layer to prevent fine filter media from flowing away. The filter bricks support the entire filter layer and participate in the water flow and air flow distribution during the backwashing process. The flushing system is used to regularly clean the filter layer. During the backwashing process, high-pressure water or air is introduced to wash away the sediments in the filter media layer.

[0003] The applicant of the present invention has found that the prior art has at least the following problems: The traditional water treatment filter tank directly discharges water into the filter tank through a pipeline, and the water flow is uneven, which affects the effect. Summary of the Utility Model

[0004] The purpose of the present invention is to provide an integrated denitrification filter tank system to solve the technical problem of uneven filtration in the prior art.

[0005] In order to solve the above problems, the integrated denitrification filter tank system involved in the present invention adopts the following technical solutions:

[0006] The integrated denitrification filter tank system provided by the present invention includes a filter tank and a filter layer arranged in the filter tank. The filter layer includes filter bricks, a supporting layer, and a filter media layer arranged in the filter tank from bottom to top in sequence. The characteristics are that it further includes a flushing system and a distribution water tank. The filter bricks are arranged in cooperation with the flushing system. The distribution water tank is arranged on at least one side of the filter tank. An overflow port for overflowing the water in the distribution water tank into the filter tank is opened on the surface of the distribution water tank adjacent to the filter tank. The two ends of the overflow port respectively correspond to the two ends of the filter layer inside the corresponding side of the filter tank or the outside of the two ends.

[0007] Preferably, the distribution water tanks are arranged on the opposite sides in the length direction of the filter tank.

[0008] Preferably, a water inlet tank is opened on the outside of the filter tank, and the two ends of the water inlet tank are respectively communicated with the two distribution water tanks. A forward water inlet for communicating with an external water supply pipeline is opened on the water inlet tank. Preferably, the flushing system includes an air distribution device communicated with the filter bricks, and the air distribution device is communicated with a blower through a first pipeline provided with a first butterfly valve.

[0009] Preferably, the flushing system further includes a water distribution dispenser communicated with the filter bricks. The water distribution dispenser is respectively communicated with the water outlet and the backwashing water inlet opened on the distribution water tank through a tee pipe, and a valve for controlling the opening and closing of the pipeline is arranged on the tee pipe.

[0010] Preferably, a backwashing water outlet communicating with an external water outlet pipeline is further opened on the water inlet tank, a second butterfly valve is installed on the backwashing water outlet, and a third butterfly valve is installed on the forward water inlet.

[0011] The beneficial effects of the present utility model are as follows:

[0012] The integrated denitrification filter tank system provided by the present utility model includes a filter tank and a filter layer arranged in the filter tank. The filter layer includes filter bricks, a supporting layer, and a filter material layer which are arranged in the filter tank from bottom to top in sequence. The difference from the prior art is that it further includes a flushing system and a distribution water tank. The filter bricks are arranged in cooperation with the flushing system. The distribution water tank is arranged on at least one side of the filter tank. An overflow port for overflowing the water in the distribution water tank into the filter tank is opened on the surface of the distribution water tank adjacent to the filter tank. Both ends of the overflow port respectively correspond to both ends of the filter layer in the corresponding filter tank side or the outer sides of both ends. The overflow port of the distribution water tank of the present device ensures that the water flow can be evenly distributed along the width of the filter layer, avoids local overload, and improves the uniformity and efficiency of filtration. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below:

[0014] Figure 1 It is a schematic diagram of the overall structure of the integrated denitrification filter tank system;

[0015] Figure 2 It is a diagram showing the cooperation relationship between the flushing system and the filter bricks;

[0016] Figure 3 It is Figure 2 The partial structure diagram of

[0017] In the figure: 1, filter tank; 2, filter bricks; 5, distribution water tank; 6, water inlet tank; 7, forward water inlet; 8, air distribution dispenser; 9, water distribution dispenser; 10, fan; 11, water outlet; 12, backwashing water inlet. Detailed Embodiments

[0018] In order to make the technical objectives, technical solutions, and beneficial effects of the present utility model clearer, the technical solutions of the present utility model will be further described below with reference to the drawings and specific embodiments.

[0019] The integrated denitrification filter 1 system device provided by the utility model includes a filter tank 1, a flushing system, a distribution water tank 5, and a filter layer arranged in the filter tank 1. The filter layer includes filter bricks 2, a supporting layer, and a filter material layer arranged in the filter tank 1 from bottom to top in sequence. The filter bricks 2 are used to support the upper supporting layer and filter material layer, and can serve as a water flow channel and an air flow channel during backwashing. The supporting layer is usually composed of larger particles, such as gravel or coarse sand, to prevent fine filter materials from being washed away and provide hydraulic distribution. The filter material layer is the main place for denitrification reaction, and the filter material can be various materials suitable for the growth of denitrifying bacteria. The filter bricks 2 are arranged in cooperation with the flushing system for periodically flushing the filter layer. The distribution water tank 5 is arranged on at least one side of the filter tank 1. An overflow port for overflowing the water in the distribution water tank 5 into the filter tank 1 is opened on the surface of the distribution water tank 5 adjacent to the filter tank 1. The two ends of the overflow port respectively correspond to the two ends of the filter layer inside the corresponding side of the filter tank 1 or the outer sides of the two ends, ensuring that when the water enters the filter tank 1, it can be evenly distributed along the entire length direction of the filter layer, avoiding the situation of too large or too small local water flow. At the same time, when the water level in the distribution water tank 5 exceeds a certain height, the excess water will overflow back into the filter tank 1 through the overflow port.

[0020] Further, the supporting layer is a cobblestone layer with a size of 4 - 38 mm, and the filter material layer is a quartz sand layer with a size of 2 - 4 mm.

[0021] Further, the distribution water tanks 5 are arranged on the opposite sides in the length direction of the filter tank 1, ensuring that the water flowing into the filter tank 1 is more evenly distributed on the filter material layer, avoiding the water flow skew that may be caused by single - side water inlet. The distribution water tanks 5 on both sides can better balance the water inlet pressure, reduce the local impact caused by single - point water inlet, and make the entire system operate more stably.

[0022] An inlet water tank 6 is opened on the outer side of the filter tank 1, and the two ends of the inlet water tank 6 are respectively communicated with the two distribution water tanks 5. A forward water inlet 7 communicating with the external water supply pipeline is opened on the inlet water tank 6. Before the water enters the filter tank 1, it is first evenly distributed into the two distribution water tanks 5 on both sides through the inlet water tank 6, and then evenly dispersed onto the filter material layer by the distribution water tanks 5. Further, the inlet water tank 6 is arranged on one side in the width direction of the filter tank 1, the forward water inlet 7 is arranged in the middle of the inlet water tank 6, the depth of the inlet water tank 6 is the same as the depth of the distribution water tank 5, and the bottom of the inlet water tank 6 is in the same plane as the bottom of the distribution water tank 5.

[0023] The flushing system includes an air distribution device 8 communicated with the filter bricks 2. The air distribution device 8 is communicated with a blower 10 through a first pipeline provided with a first butterfly valve on it. The function of the first butterfly valve is to open when flushing is required to allow air to flow in, and to close in the normal treatment mode to prevent air leakage. The air pressure provided by the blower 10 is the power source for the backwashing process. The gas enters the S - shaped filter bricks 2 through the air distribution device 8, and then scrubs the impurities in the filter material layer.

[0024] The flushing system further includes a water distribution divider 9 connected to the filter brick 2. The water distribution divider 9 is connected to the water outlet 11 and the backwashing water inlet 12 opened on the distribution water tank 5 through a tee pipe, and a valve for controlling the opening and closing of the pipeline is provided on the tee pipe. The valve is set as a three-way valve to control the connection of the water distribution divider 9 to the water outlet 11 or the backwashing water inlet 12, or the valve includes a fourth butterfly valve and a fifth butterfly valve, and the fourth butterfly valve and the fifth butterfly valve are respectively arranged on two branch pipes of the tee pipe that are respectively connected to the water outlet 11 and the backwashing water inlet 12. During normal operation, the water flow in the filter brick 2 is discharged from the water outlet 11 through the water distribution divider 9 and the tee pipe. During backwashing, the water flow enters the filter brick 2 from the backwashing water inlet 12 through the tee pipe and then enters the filter brick 2 through the water distribution divider 9 to wash the impurities in the filter material layer again.

[0025] The water inlet tank 6 is also provided with a backwashing water outlet 11 communicating with the external water outlet pipeline, a second butterfly valve is installed on the backwashing water outlet 11, and a third butterfly valve is installed on the forward water inlet 7.

[0026] The usage method of this device is as follows:

[0027] During the normal operation of the filter tank 1, water enters through the forward water inlet 7 and is evenly distributed to the filter material layer through the distribution water tank 5, and then enters the water distribution divider 9 through the filter brick 2. The water distribution divider 9 collects the water and discharges it through the water outlet 11.

[0028] For backwashing, the butterfly valve of the water outlet 11 and the butterfly valve of the forward water inlet 7 are closed, the butterfly valve of the backwashing water outlet 11 is opened, the butterfly valve of the pipeline of the blower 10 is opened, gas enters the S-shaped filter brick 2 through the air distribution divider 8, and then rubs and washes the impurities in the filter material layer. Subsequently, the butterfly valve of the backwashing water inlet 12 is opened, and the backwashing water enters the S-shaped filter brick 2 through the water distribution divider 9 to wash the impurities in the filter material layer again. Finally, the butterfly valve of the blower 10 is closed, a large amount of backwashing water enters until the water quality in the tank becomes clear, and this cleaning is completed. The butterfly valve of the backwashing water inlet and the butterfly valve of the backwashing water outlet are closed, the butterfly valve of the water outlet 11 is opened, the butterfly valve of the forward water inlet 7 is opened, and the filtration stage is entered again.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Any equivalent replacement and modification or partial replacement that do not depart from the spirit and scope of the present invention shall be covered within the scope of protection of the claims of the present invention.

Claims

1. The integrated denitrification filter system includes a filter tank and a filter layer arranged in the filter tank. The filter layer includes The filter bricks, the supporting layer and the filter material layer are arranged in the filter tank from bottom to top, and are characterized in that: It also includes a flushing system and a distribution water tank. The filter bricks are arranged in coordination with the flushing system. The distribution water tank is arranged on at least one side of the filter tank. An overflow port is provided on the surface of the distribution water tank adjacent to the filter tank to allow the water in the distribution water tank to overflow into the filter tank. The two ends of the overflow port correspond to the two ends of the filter layer on the corresponding filter tank side or the outside of the two ends.

2. The integrated denitrification filter system according to claim 1, characterized in that: The distribution tanks are arranged on opposite sides of the filter tank in the length direction.

3. The integrated denitrification filter system according to claim 2, characterized in that: The outside of the filter tank is provided with a water inlet trough whose two ends are respectively connected to two distribution water tanks, and the water inlet trough is provided with a forward water inlet connected to an external water supply pipeline.

4. The integrated denitrification filter system according to claim 3, characterized in that: The flushing system comprises an air distributor communicated with the filter brick, and the air distributor is communicated with the fan through a first pipeline on which a first butterfly valve is installed.

5. The integrated denitrification filter system according to claim 4, characterized in that: The flushing system also includes a water distributor connected to the filter brick, which is connected to the water outlet and backwash water inlet on the distribution tank through a three-way pipe. A valve for controlling the opening and closing of the pipeline is arranged on the three-way pipe.

6. The integrated denitrification filter system according to claim 5, characterized in that: A backwash outlet connected to an external water outlet pipeline is also provided on the water inlet tank, a second butterfly valve is arranged on the backwash outlet, and a third butterfly valve is arranged on the forward water inlet.

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