A new type of pressure-bearing microfiltration equipment

Abstract

The utility model discloses a novel pressure type microfiltration equipment. Including a closed pressure shell, the closed pressure shell be divided into upper and lower two parts, and the upper part is filter area, and is the cylinder shape, and the lower part is the silt area, and is the hemispherical shape upper and lower two parts are connected by the flange board, be provided with multilayer micropore filter and self -cleaning system in the filter area, the closed pressure shell upper portion is provided with the water inlet, and the center of multilayer micropore filter is exported to the outside of the closed pressure shell through the water outlet pipeline, and the silt area lower part is provided with the sludge discharge pipe, the equipment of the utility model has high filtration efficiency, and the anti -blocking capacity is strong, has self -cleaning function, and when self -cleaning, water is not interrupted, can satisfy the demand of uninterrupted water purification.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment, specifically relating to a novel pressure-bearing microfiltration device. Background Technology

[0002] In the field of water treatment, filtration is one of the key processes for removing suspended solids, colloids, and microorganisms, and is widely used in municipal wastewater deep treatment, industrial circulating water systems, rainwater reuse, and landscape water purification. Traditional filtration technologies include sand filtration, activated carbon filtration, and membrane separation. Among these, self-cleaning filters are favored due to their compact structure, small footprint, and high degree of automation. However, existing self-cleaning filters still have significant drawbacks in actual operation:

[0003] (1) Problems of easy clogging and frequent backwashing: Traditional self-cleaning filters are mostly mesh filter structures. The surface of the filter screen is easily adhered by sticky substances (such as grease, biofilm) or fine particles (such as chemical flocculants), which leads to a rapid increase in filtration resistance and a high frequency of backwashing. Especially when treating water with high turbidity or containing algae, the pores of the filter cloth are easily completely blocked, resulting in a large amount of water consumption for backwashing and seriously affecting operating efficiency.

[0004] (2) The backwashing system is complex: Traditional backwashing systems usually include backwashing water source and power equipment, water and air distribution devices and complex control systems. The backwashing system occupies a large area and has high construction costs.

[0005] (3) Short working cycle: Traditional mesh self-cleaning filters have almost no filtration depth. Limited by the filter screen's dirt-holding capacity, a single filtration cycle usually only lasts 12-48 hours. They are not well adapted to fluctuating water quality (such as combined sewage during the rainy season) and require enhanced pretreatment (such as sedimentation and flotation), which increases system complexity and investment costs. Utility Model Content

[0006] To overcome the above-mentioned defects, the purpose of this utility model is to provide a new type of pressure-bearing microfiltration device.

[0007] To achieve the above objectives, this utility model provides a novel pressure-bearing microfiltration device, which includes a closed pressure-bearing shell. The closed pressure-bearing shell is divided into upper and lower parts. The upper part is a filtration zone and is cylindrical, while the lower part is a sedimentation zone and is hemispherical. The upper and lower parts are connected by a flange plate.

[0008] The filtration zone is equipped with a multi-layer microporous filter and a self-cleaning system.

[0009] The closed pressure-bearing shell is provided with a water inlet at the top; water is discharged to the outside of the closed pressure-bearing shell through the water outlet pipe at the center of the multi-layer microporous filter, and a sludge discharge pipe is provided at the bottom of the sedimentation zone.

[0010] Furthermore, the multi-layer microporous filter is composed of multiple annular corrugated plates pressed together. The annular corrugated plates are pressed together by a pressing device to form micron-level filtration channels, which intercept pollutants.

[0011] Furthermore, it also includes a drive motor, which is used to drive the multilayer microporous filter to rotate within the closed pressure-bearing housing.

[0012] Furthermore, the self-cleaning system includes a brush-equipped suction nozzle, which is vertically disposed on one side of the multi-layer microporous filter, and a suction tube is provided at the tail of the brush-equipped suction nozzle.

[0013] Furthermore, a self-cleaning method for a novel pressure-bearing microfiltration device includes the following steps:

[0014] Open the sludge discharge valve on the sludge suction pipe;

[0015] Water is supplied from the outlet pipe in reverse order;

[0016] When the brush-equipped nozzle contacts the multi-layer microporous filter, negative pressure is generated, and the filtered water backwashes, initiating self-cleaning. When the pressure difference between the inside and outside of the multi-layer microporous filter reaches the set filtration value, self-cleaning ends, and the sludge discharge valve closes.

[0017] This utility model has the following advantages:

[0018] The equipment has a long filtration cycle, a self-cleaning function, and continuous water intake during self-cleaning. It has high filtration efficiency and strong anti-fouling ability.

[0019] (1) Long working cycle: The multi-layer microporous filter has a certain filtration depth, and the microfiltration channel can intercept a large number of pollutants.

[0020] (2) The equipment has high filtration efficiency and strong anti-fouling ability: it has a self-cleaning function, and the water intake is uninterrupted during self-cleaning, which can meet the needs of uninterrupted water purification.

[0021] (3) Stable operation and energy saving: The equipment is automatically cleaned, can adapt to water quality fluctuations, and has low maintenance costs; the water outlet is not under pressure, and the residual pressure after the equipment is pressurized and purified once can meet the user's needs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a novel pressure-bearing microfiltration device according to the present invention;

[0023] Figure 2 for Figure 1 Section 1-1;

[0024] Figure 3 for Figure 2 AA cross-section diagram;

[0025] Figure 4 for Figure 1 Section 2-2;

[0026] in:

[0027] 1—Pipe mixer; 2—Multi-layer microporous filter; 3—Rotating motor; 4—Hydraulic nozzle with brush; 5—Sludge suction pipe; 6—Sludge discharge valve; 7—Pressure-bearing shell; 8—Sludge settling zone. Detailed Implementation

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] like Figure 1 As shown, a novel pressure-bearing microfiltration device of this utility model includes a closed pressure-bearing shell 7. The closed pressure-bearing shell is divided into upper and lower parts. The upper part is the filtration zone, which is cylindrical, and the lower part is the sedimentation zone 8, which is hemispherical. The upper and lower parts are connected by a flange plate.

[0032] The filtration zone is equipped with a multi-layer microporous filter 2 and a self-cleaning system;

[0033] The enclosed pressure-bearing shell is equipped with an inlet at its upper part; after the water and coagulant are mixed in the pipeline mixer 1, they enter the enclosed pressure-bearing shell 7 through the inlet; water from the center of the multi-layer microporous filter exits to the outside of the enclosed pressure-bearing shell through an outlet pipe, and a sludge discharge pipe is provided at the lower part of the sedimentation zone. The outlet pipe and the multi-layer microporous filter are connected by a rotary joint, meaning the outlet pipe is fixed, while the multi-layer microporous filter can rotate when the drive motor rotates.

[0034] like Figures 2 to 4As shown, the multi-layer microporous filter is composed of multiple annular corrugated plates pressed together to form an annular column. The annular corrugated plates are pressed together by a pressing device to form micron-level filtration channels, and pollutants are intercepted by the surface of the annular column and the internal micron-level filtration channels.

[0035] It also includes a drive motor 3, which is used to drive the multilayer microporous filter to rotate within the closed pressure-bearing housing.

[0036] The self-cleaning system includes a brush-equipped suction nozzle 4, which is vertically positioned on one side of the multi-layer microporous filter. A sludge suction pipe 5 is located at the tail of the brush-equipped suction nozzle. During self-cleaning, the sludge discharge valve on the sludge suction pipe is opened; water is supplied in reverse from the outlet pipe; a negative pressure appears at the contact point between the brush-equipped suction nozzle and the multi-layer microporous filter, and the filtered water backwashes, initiating self-cleaning. When the pressure difference between the inside and outside of the multi-layer microporous filter reaches the set filtration value, self-cleaning ends, and the sludge discharge valve is closed.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A novel pressure-bearing microfiltration device, characterized in that, It includes a closed pressure-bearing shell, which is divided into upper and lower parts. The upper part is a filtration zone, which is cylindrical, and the lower part is a sedimentation zone, which is hemispherical. The two parts are connected by a flange plate. The filtration zone is equipped with a multi-layer microporous filter and a self-cleaning system. The closed pressure-bearing shell is provided with a water inlet at the top; water is discharged to the outside of the closed pressure-bearing shell through the water outlet pipe at the center of the multi-layer microporous filter, and a sludge discharge pipe is provided at the bottom of the sedimentation zone.

2. The novel pressure-bearing microfiltration device as described in claim 1, characterized in that, The multi-layer microporous filter is composed of multiple annular corrugated plates pressed together. The annular corrugated plates are pressed together by a pressing device to form micron-level filtration channels, which intercept pollutants.

3. The novel pressure-bearing microfiltration device as described in claim 1, characterized in that, It also includes a drive motor, which is used to drive the multilayer microporous filter to rotate within a closed pressure-bearing housing.

4. The novel pressure-bearing microfiltration device as described in claim 1, characterized in that, The self-cleaning system includes a brush-equipped suction nozzle, which is vertically positioned on one side of the multi-layer microporous filter, and a suction tube is provided at the tail of the brush-equipped suction nozzle.

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