Submersible jet aerator

Abstract

The submersible jet aerator comprises a submersible pump and a rack, an impeller extending into the rack is arranged at the working end of the submersible pump, an opening is formed in the side wall of the rack, the opening is connected with an air inlet pipe through a mixing pipe, a diffusion frame is arranged at the end, away from the rack, of the mixing pipe, and the diffusion frame is connected with the impeller. The bottom end of the rack communicates with a protective cover, and the protective cover is rotationally connected with a cleaning assembly used for cleaning the protective cover. And a spiral flow guide frame positioned in the mixing pipe is arranged at the opening of the rack. The device has the beneficial effects that when muddy water passes through the protective cover, the protective cover can be cleaned through the cleaning assembly, the blocking condition of meshes of the protective cover can be relieved, and the protective cover can continuously conduct filtering operation; the spiral flow guide frame is used for guiding muddy water, mixing of the muddy water and air is achieved, compression is conducted again in cooperation with the diffusion frame, and the aeration effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of aerators, in particular to a submersible jet aerator. Background Art

[0002] Aerators can be used to add oxygen to water to increase the dissolved oxygen content in the water to meet the oxygen demand of microbial metabolism. In particular, aeration tanks can keep the substances in the aeration tank in a suspended state, increase the contact area between water and air, and thus promote the circulation of water. Aerators are widely used in water treatment, sewage treatment, petrochemicals, refining chemicals, food processing and other industries, and are of great significance for improving water quality and improving treatment efficiency.

[0003] Submersible jet aerators are mainly composed of submersible pumps, nozzles and air inlet pipes, and are characterized by compact structure and small footprint. However, the submersible jet aerators currently on the market usually have a water inlet at the bottom of the submersible pump frame, and the filter at the air inlet is easily clogged by sludge, making it difficult to clean, thus affecting the operation of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a submersible jet aerator in order to solve the above-mentioned problems, as described below.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a submersible jet aerator, comprising a submersible pump and a frame, wherein the working end of the submersible pump is provided with an impeller extending into the frame, the side wall of the frame is provided with an opening, the opening is connected with an air inlet pipe through a mixing tube, and a diffusion frame is provided at the end of the mixing tube away from the frame;

[0007] The bottom end of the frame is connected to a shield, and a cleaning component for cleaning the shield is rotatably connected to the shield; a spiral guide frame located inside the mixing tube is provided at the opening of the frame.

[0008] In some embodiments, the opening of the frame is connected to the mixing tube via a flange.

[0009] In some embodiments, the spiral guide frame includes a fixed plate, a cone panel is connected to the fixed plate, and a spiral guide frame is provided at a movable end of the cone panel.

[0010] In some embodiments, the shield is partially spherical.

[0011] In some embodiments, the cleaning assembly includes a rotating shaft rotatably matched with the shield, and a plurality of obliquely arranged scrapers are connected to the outer end of the rotating shaft, and the scrapers are gap-matched with the shield.

[0012] In some embodiments, when the scraper is located inside the shield, the scraper is made of rubber.

[0013] In some embodiments, the frame has an inverted frustum-shaped cavity inside, the impeller includes a top plate connected to the output end of the submersible pump, a connecting plate is provided at the axis of the top plate, and inclined blades are provided on the outside of the connecting plate, and the blades are "S" shaped.

[0014] In some embodiments, the blade includes a second blade plate and a first blade plate, the second blade plate and the first blade plate are spaced apart, and a height of the second blade plate is higher than a height of the first blade plate.

[0015] The beneficial effects are:

[0016] When muddy water passes through the shield, the shield can be cleaned by using the cleaning component, which can reduce the blockage of the shield mesh and enable the shield to continue filtering operation;

[0017] The spiral guide frame is used to guide the muddy water to achieve the mixing of muddy water and air, and the diffusion frame is used to compress it again to improve the aeration effect of the device;

[0018] Furthermore, the cone panel and the spiral guide frame can not only assist in the drainage of mud and water, but also utilize the gaps on the surface of the spiral guide frame to guide the gas as the spiral guide frame rotates, thereby cutting and mixing the gas and improving the mixing effect of mud, water and gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the spiral guide frame in the utility model;

[0022] Figure 3 It is a bottom view of the impeller in the utility model.

[0023] The following are the descriptions of the reference numerals:

[0024] 1. Submersible pump; 2. Frame; 201. Shield; 3. Cleaning assembly; 301. Rotating shaft; 302. Scraper; 4. Impeller; 401. Top plate; 402. Connecting plate; 403. First blade; 404. Second blade; 5. Spiral guide frame; 501. Fixed plate; 502. Conical panel; 503. Spiral guide frame; 6. Inlet pipe; 601. Mixing pipe; 7. Diffuser frame. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] First embodiment:

[0027] See also Figure 1-Figure 3 As shown, the utility model provides a submersible jet aerator, comprising a submersible pump 1 and a frame 2, the frame 2 is connected below the submersible pump 1, a frame body for supporting the submersible pump 1 is provided at the bottom of the frame 2, an impeller 4 extending into the frame 2 is provided at the working end of the submersible pump 1, an opening is provided on the side wall of the frame 2, the opening is connected to an air inlet pipe 6 through a mixing tube 601, the air inlet pipe 6 extends vertically upward, a diffusion frame 7 is provided at the end of the mixing tube 601 away from the frame 2, the end of the diffusion frame 7 close to the mixing tube 601 is cylindrical, the inner diameter of which is smaller than the inner diameter of the mixing tube 601, and is used for compressing and mixing the mixed liquid of muddy water and air, and a conical cover is provided at the opening of the diffusion frame 7 to guide the mixed liquid;

[0028] A protective cover 201 is provided at the bottom of the frame 2, and the protective cover 201 can be used to filter the mud-water mixture and then enter the frame 2. A cleaning component 3 for cleaning the mud-water mixture is rotatably connected to the protective cover 201.

[0029] The opening of the frame 2 is provided with a spiral guide frame 5 located inside the mixing tube 601;

[0030] When the device is in use, the submersible pump 1 can drive the impeller 4 inside the frame 2 to rotate, and the impeller 4 is used to accelerate the speed of mud and water. The mixture of mud and water enters the frame 2 after being simply filtered by the shield 201. The mud and water rotate at high speed with the rotation of the impeller 4, and the mud and water are continuously compressed in the frame 2. When the mud and water pass through the shield 201, some large mud will adhere to the mesh of the shield 201. The cleaning component 3 can be used to clean the shield 201, so that the shield 201 can continuously perform filtering operations;

[0031] After the muddy water is compressed inside the frame 2 as the impeller 4 rotates, it is discharged through the openings in the side wall of the frame 2, and the spiral guide frame 5 is used to guide and drain the muddy water. As the muddy water is sprayed out, the air pressure around the spiral guide frame 5 becomes lower, and the gas in the air inlet pipe 6 enters the mixing tube 601, where the muddy water and air are mixed. The mixed muddy water and gas are compressed again through the diffusion frame 7, and are sprayed and diffused from the opening of the diffusion frame 7, impacting the water pool with water flow, thereby achieving aeration of the sludge water, and the aeration effect is good.

[0032] The second embodiment is different from the first embodiment in that:

[0033] The opening of the frame 2 and the facing surface of the mixing tube 601 are both provided with flanges, and the frame 2 and the mixing tube 601 are connected by bolts to the flanges. In the structure of the spiral guide frame 5, the spiral guide frame 5 includes a fixing plate 501, and the fixing plate 501 is a disc-shaped structure, which corresponds to the flange at the connection between the frame 2 and the mixing tube 601. The fixing plate 501 and the flange on the frame 2 are respectively provided with mutually matching protrusions and grooves, which can realize the installation and positioning of the spiral guide frame 5;

[0034] A cone panel 502 is connected to the surface of the fixed plate 501. The cone panel 502 has a cone surface structure. The large end of the cone panel 502 is fixedly connected to the fixed plate 501. A spiral guide frame 503 is provided at the movable end of the cone panel 502. The spiral guide frame 503 has a spiral structure. One end of the spiral guide frame 503 is fixedly connected to the small end face of the cone panel 502, and the other end of the spiral guide frame 5 has a cone surface spiral structure. When muddy water enters the mixing tube 601 through the frame 2, the muddy water is ejected from the inside of the spiral guide frame 5. The cone panel 502 and the spiral guide frame 503 can be used to drain the muddy water. When the muddy water passes through the spiral guide frame 503, the spiral guide frame 503 A negative pressure area is generated around the frame 503, and the spiral guide frame 503 uses the gaps on its surface to guide the air in the air intake pipe 6 into the spiral guide frame 503, and when the gas is guided by the spiral guide frame 503, the gas is rotated and guided by the spiral guide frame 503, so that the gas can be cut and mixed, and the mud water and gas are preliminarily mixed in the mixing tube 601, so that the mixed liquid of the mud water and gas enters the diffusion frame 7 for compression, so that more gas is dissolved in the mud water, and finally the mixed liquid is sprayed into the mud water through the diffusion frame 7, so as to realize the aeration of the sludge water, and the aeration effect is good.

[0035] The third embodiment is different from the first embodiment in that:

[0036] The shield 201 is a partial spherical structure, and the shield 201 is integrally formed with the frame 2. The frame 2 includes an upper casing and a lower casing, and the upper casing and the lower casing are connected by bolts, so that the frame 2 can be disassembled and repaired. The shield 201 is formed and arranged at the bottom of the lower casing of the frame 2. When the shield 201 is a partial spherical structure, the contact area between the shield 201 and the muddy water is large, which facilitates the muddy water to be delivered to the inside of the frame 2.

[0037] The cleaning component 3 includes a rotating shaft 301 that is rotatably matched with the shield 201. In the structure of the shield 201, the shield 201 is a partial spherical surface, that is, the shield 201 is a circumferential rotating surface. The rotating shaft 301 is coaxially arranged with the shield 201. The outer end of the rotating shaft 301 is connected with a plurality of inclined scrapers 302. The scrapers 302 and the shield 201 have a clearance match. When muddy water enters the interior of the frame 2 through the shield 201, the muddy water can push the inclined scrapers 302, and the scrapers 302 rotate, and the surface of the shield 201 is cleaned by the contact surface of the scrapers 302 with the shield 201.

[0038] When the scraper 302 is set, the scraper 302 can be located on the inside or outside of the shield 201. When the scraper 302 is located on the inside of the shield 201, the scraper 302 is made of rubber. With this arrangement, when the scraper 302 is damaged and falls off, it will not cause damage to the impeller 4, will not affect the aeration work of the equipment, and is more convenient to use.

[0039] The fourth embodiment is different from the first embodiment in that:

[0040] In the structure of the frame 2, the frame 2 has an inverted frustum-shaped cavity inside, wherein the small end faces downward, the impeller 4 includes a top plate 401 connected to the output end of the submersible pump 1, a connecting plate 402 is provided at the axis of the top plate 401, the connecting plate 402 is located below the top plate 401, the top plate 401 and the connecting plate 402 are integrally formed, and inclined blades are provided on the outside of the connecting plate 402, the blades are distributed around the axis of the connecting plate 402 as a reference circle, the blades are "S"-shaped, and the rotation of the blades is used to compress the muddy water to increase its kinetic energy, and the "S"-shaped blades have a better compression effect on water than the existing plate-shaped blades;

[0041] The blades include a second blade 404 and a first blade 403, and the second blade 404 and the first blade 403 are spaced apart, wherein the height of the second blade 404 is higher than the height of the first blade 403. The spaced apart second blade 404 and the first blade 403 can allow more mud and water to enter the interior of the frame 2, thereby compressing the mud and water.

[0042] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A submersible jet aerator, comprising a submersible pump (1) and a frame (2), wherein the working end of the submersible pump (1) is provided with an impeller (4) extending into the interior of the frame (2), the side wall of the frame (2) is provided with an opening, the opening is connected to an air inlet pipe (6) through a mixing pipe (601), and a diffusion frame (7) is provided at the end of the mixing pipe (601) away from the frame (2), characterized in that: The bottom end of the frame (2) is connected to a protective cover (201), and a cleaning component (3) for cleaning the protective cover (201) is rotatably connected thereto; a spiral flow guide frame (5) located inside the mixing tube (601) is provided at the opening of the frame (2).

2. A submersible jet aerator according to claim 1, characterized in that: The opening of the frame (2) is connected to the mixing pipe (601) via a flange.

3. A submersible jet aerator according to claim 2, characterized in that: The spiral guide frame (5) comprises a fixed plate (501), a cone panel (502) is connected to the fixed plate (501), and a spiral guide frame (503) is provided at a movable end of the cone panel (502).

4. A submersible jet aerator according to claim 1, characterized in that: The shield (201) is in the form of a partial spherical surface.

5. A submersible jet aerator according to claim 4, characterized in that: The cleaning component (3) comprises a rotating shaft (301) rotatably matched with the protective cover (201), and the outer end of the rotating shaft (301) is connected to a plurality of obliquely arranged scrapers (302), and the scrapers (302) are clearance-matched with the protective cover (201).

6. A submersible jet aerator according to claim 5, characterized in that: When the scraper (302) is located inside the protective cover (201), the scraper (302) is made of rubber.

7. A submersible jet aerator according to claim 1, characterized in that: The frame (2) has an inverted frustum-shaped cavity inside, and the impeller (4) comprises a top plate (401) connected to the output end of the submersible pump (1), a connecting plate (402) is provided at the axis of the top plate (401), and inclined blades are provided on the outside of the connecting plate (402), and the blades are in an "S" shape.

8. A submersible jet aerator according to claim 7, characterized in that: The blade comprises a second blade plate (404) and a first blade plate (403), wherein the second blade plate (404) and the first blade plate (403) are arranged at an interval, wherein the height of the second blade plate (404) is higher than the height of the first blade plate (403).

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