Efficient gas washing device for sand filtration
By designing the transverse air pipe and jet nozzle structure in the sand filter device, the disturbance of gas pressure on the sand bed is reduced, and the sand bed is stabilized by using filter layer plates and corrugated filter cotton, the problem of insufficient stability of the sand bed in the prior art is solved. , achieving high-efficiency air washing and energy consumption reduction effects.
Patent Information
- Application Number
- CN202420278956.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-02-05
AI Technical Summary
In the existing sand filter and wash devices, the gas flow inlet from the bottom causes a high gas pressure to impact the top filter layer, resulting in insufficient stability of the sand bed and affecting the filtration effect.
Design a high-efficiency air washing device, the air pipe is inserted horizontally in the tank body, the jet nozzle is distributed equidistantly along the surface of the air pipe, the jet nozzle blows up or down, the up and down distance between the air pipe and the tank body is shortened, reducing the disturbance of gas pressure on the sand bed, and Set up a filter layer plate and corrugated filter cotton in the sand bed to stabilize the sand bed.
It reduces the disturbance of gas on the sand bed, reduces the gas pressure requirement, improves the gas washing efficiency and stability of the sand bed, and achieves a shortened gas washing time and energy consumption.
Smart Images
Figure CN222304886U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand filters, in particular to a high-efficiency air washing device for sand filtration. Background Art
[0002] In the sand filter system, in order to ensure the water quality, interception efficiency and service life of the sand filter, an air washing device will be added during the operation of the sand filter to ensure the water quality, interception efficiency and service life of the sand filter.
[0003] At present, the air intake pipes of the sand filter air washing all take in air from the bottom of the sand filter. When the airflow sprays upward due to pressure, it will impact the sand bed. Since the pipe is far away from the top filter layer, a greater pressure is required to clean the top filter layer. This will cause the gas pressure to disturb the sand bed, resulting in insufficient stability of the sand bed and poor filtering effect of the sand bed.
[0004] Therefore, those skilled in the art provide a high-efficiency air washing device for sand filtration to solve the problems raised in the above background technology. Utility Model Content
[0005] The utility model aims to provide a high-efficiency air washing device for sand filtration, so as to solve the problem that the sand bed of the existing sand filtration device proposed in the above background technology is poor in stability and the sand bed is easily disturbed by gas impact.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A high-efficiency air washing device for sand filtration comprises: a tank body, a water inlet is arranged on the top of the tank body, and a water outlet is connected to the bottom of the tank body, a water distribution tray is installed on the inner top of the tank body, and a drainage plate is connected to the outer side of the water distribution tray, a sand bed is arranged below the water distribution tray, and a filter layer plate is arranged inside the sand bed, an air pipe is interspersed in the middle of the sand bed, and an air nozzle is installed on the surface of the air pipe, an interface is arranged on the right end of the air pipe, filter holes are opened on the surface wall of the filter layer plate, and corrugated filter cotton is arranged on the upper and lower surfaces of the filter layer plate.
[0008] As a further solution of the present invention, the top structure of the sand bed is in an inverted cone shape, and the cross-sectional horizontal plane of the sand bed is parallel to the air pipe and the filter layer plate.
[0009] As a further solution of the utility model, a bottom plate is installed on the inner bottom of the tank body, and a water filter cap is installed on the surface of the bottom plate.
[0010] As a further solution of the present invention, the air nozzles are distributed equidistantly along the surface of the air pipe, and the air nozzles are vertically symmetrical about the symmetry center line of the air pipe.
[0011] As a further solution of the present invention, the filter plates are distributed equidistantly along the vertical direction of the sand bed, and the filter plates are distributed symmetrically about the air pipe.
[0012] As a further solution of the present invention, the overall structural cross-section of the corrugated filter cotton and the filter layer plate is wavy.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. An air pipe is inserted horizontally in the middle of the tank body, and air nozzles are set on the upper and lower sides of the air pipe. The air pipe is set in the middle, with the same distance from the upper and lower parts of the tank body. The air is blown upward or downward to the sand bed through the air nozzle, shortening the distance between the air pipe and the tank body, reducing the resistance of the gas, and thus reducing the pressure value required for inputting gas, thereby reducing the disturbance to the sand bed, and having the effects of low gas pressure, short air washing time and low energy consumption.
[0015] 2. A filter plate is set between the sand beds. The surface of the filter plate is provided with corrugated filter cotton and filter holes. Water can be filtered through the filter plate. At the same time, the filter plate is used to stabilize the sand bed to avoid confusion of the upper and lower sand beds caused by gas disturbance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The schematic diagram of the structure of a high-efficiency air washing device for sand filtration is shown in FIG.
[0017] Figure 2 The figure is a schematic diagram of the internal structure of a tank in a high-efficiency air washing device for sand filtration.
[0018] Figure 3 The figure is a schematic diagram of the structure of the air pipe in a high-efficiency air washing device for sand filtration.
[0019] Figure 4 The figure is a schematic diagram of the structure of the air pipe in a high-efficiency air washing device for sand filtration.
[0020] In the figure: 1. tank body; 2. water inlet; 3. water outlet; 4. interface; 5. water distribution tray; 6. drainage plate; 7. sand bed; 8. filter layer plate; 9. air pipe; 10. bottom plate; 11. water filter cap; 12. air nozzle; 13. filter hole; 14. corrugated filter cotton. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1 to Figure 4 The embodiment of the utility model provides a high-efficiency air washing device for sand filtration, comprising: a tank body 1, a water inlet 2 is arranged on the top of the tank body 1, and a water outlet 3 is connected to the bottom of the tank body 1, a bottom plate 10 is installed on the inner bottom of the tank body 1, and a water filter cap 11 is installed on the surface of the bottom plate 10;
[0023] Specifically, the operator releases water into the tank body 1 from the water inlet 2 , and the water is evenly sprinkled on the drainage plate 6 through the water distribution plate 5 , and the contact area between the water and the sand bed 7 below is expanded along the arc-shaped drainage plate 6 . The water is filtered by the sand bed 7 and then discharged from the water outlet 3 .
[0024] A water distribution tray 5 is installed on the inner top of the tank body 1, and a drainage plate 6 is connected to the outer side of the water distribution tray 5. A sand bed 7 is arranged below the water distribution tray 5, and a filter plate 8 is arranged inside the sand bed 7. The top structure of the sand bed 7 is in an inverted cone shape, and the horizontal cross-sectional plane of the sand bed 7 is parallel to the air pipe 9 and the filter plate 8. The top structure of the sand bed 7 is in an inverted cone shape, and the horizontal cross-sectional plane of the sand bed 7 is parallel to the air pipe 9 and the filter plate 8. The filter plates 8 are equidistantly distributed along the vertical direction of the sand bed 7, and the filter plates 8 are symmetrically distributed about the air pipe 9. Filter holes 13 are opened on the surface wall of the filter plate 8, and corrugated filter cotton 14 is arranged on the upper and lower surfaces of the filter plate 8. The overall structural cross-sectional shape of the corrugated filter cotton 14 and the filter plate 8 is wavy;
[0025] Specifically, the sand bed 7 is in an inverted cone shape. When water seeps into the sand bed 7, it will flow toward the middle of the sand bed 7 and change the direction of the water. When the water flows toward the middle of the sand bed 7, the flow path of the water changes, thereby slowing down the infiltration speed of the water. When the water seeps, it will pass through the filter layer plate 8, and the corrugated filter cotton 14 on the surface of the filter layer plate 8 will filter the water.
[0026] An air pipe 9 is interspersed in the middle of the sand bed 7, and an air nozzle 12 is installed on the surface of the air pipe 9. The air nozzles 12 are equidistantly distributed along the surface of the air pipe 9, and the air nozzles 12 are symmetrical about the symmetry center line of the air pipe 9. The right end of the air pipe 9 is provided with an interface 4;
[0027] Specifically, after the gas source is connected to the interface 4, the gas is ejected by using the air nozzle 12. The air nozzle 12 is arranged on the upper and lower surfaces of the air pipe 9 to spray the gas toward the sand bed 7. The air pipe 9 is arranged in the middle with the same upper and lower distances from the tank body 1. The air nozzle 12 blows upward or downward toward the sand bed 7, shortening the upper and lower distances between the air pipe 9 and the tank body 1, reducing the resistance to the gas, and thus reducing the pressure value required for inputting the gas, thereby reducing the disturbance to the sand bed 7.
[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A high-efficiency air washing device for sand filtration, comprising: A tank body (1), wherein a water inlet (2) is arranged at the top of the tank body (1), and a water outlet (3) is connected to the bottom of the tank body (1), characterized in that a water distribution tray (5) is installed at the inner top of the tank body (1), and a drainage plate (6) is connected to the outer side of the water distribution tray (5), a sand bed (7) is arranged below the water distribution tray (5), and a filter layer plate (8) is arranged inside the sand bed (7), an air pipe (9) is inserted in the middle of the sand bed (7), and an air nozzle (12) is installed on the surface of the air pipe (9), an interface (4) is arranged at the right end of the air pipe (9), a filter hole (13) is opened on the surface wall of the filter layer plate (8), and corrugated filter cotton (14) is arranged on the upper and lower surfaces of the filter layer plate (8).
2. A high-efficiency air washing device for sand filtration according to claim 1, characterized in that: The top structure of the sand bed (7) is in the shape of an inverted cone, and the horizontal cross-section of the sand bed (7) is parallel to the air pipe (9) and the filter layer plate (8).
3. The high-efficiency air washing device for sand filtration according to claim 1, characterized in that: A bottom plate (10) is installed on the inner bottom of the tank body (1), and a water filter cap (11) is installed on the surface of the bottom plate (10).
4. A high-efficiency air washing device for sand filtration according to claim 1, characterized in that: The air nozzles (12) are distributed equidistantly along the surface of the air pipe (9), and the air nozzles (12) are vertically symmetrical with respect to a symmetry center line of the air pipe (9).
5. The high-efficiency air washing device for sand filtration according to claim 1, characterized in that: The filter plates (8) are distributed equidistantly along the vertical direction of the sand bed (7), and the filter plates (8) are distributed symmetrically up and down with respect to the air pipe (9).
6. The high-efficiency air washing device for sand filtration according to claim 1, characterized in that: The overall structural cross-section of the corrugated filter cotton (14) and the filter layer plate (8) is wavy.