Jet type aeration device

Abstract

The utility model provides a jet type aeration device and belongs to the field of jet aeration generation devices. The problems of leakage, low efficiency, poor effect, high cost and complex installation of the aeration device are solved. The gas-liquid mixing device comprises a glass reinforced plastic pipe type shell, a gas-liquid mixing chamber, a sealing plate and a reducing component, the sealing plate is arranged on the inner side of one end of the glass reinforced plastic pipe type shell, a water inlet connector is arranged on the sealing plate, the gas-liquid mixing chamber is arranged behind the sealing plate, and gas inlet connectors are arranged on the periphery of the outer side of the gas-liquid mixing chamber. A reducing component is arranged behind the gas-liquid mixing chamber and is integrally formed, the diameters of the two ends of the reducing component are larger than the diameter of the middle position of the reducing component, and a groove is formed in the inner wall of the glass steel pipe type shell; and the sealing plate and the reducing component are in sealed connection with the interior of the glass reinforced plastic pipe type shell through a groove in the inner wall of the glass reinforced plastic pipe type shell. The device is mainly used for sewage treatment.

Description

Technical Field

[0001] The utility model belongs to the field of jet aeration generating devices, in particular to a jet aeration device. Background Art

[0002] A jet aerator is a device used in sewage treatment. It uses the jet principle to generate fine bubbles, creating aeration through the use of high-speed water jets. This allows air to fully contact water, dissolving oxygen in the water and achieving aeration. Aeration is the process of forcibly transferring oxygen from the air into a liquid to obtain sufficient dissolved oxygen. Aeration not only allows oxygen from the air to enter the water, but also agitates the liquid, preventing suspended matter from sinking and enhancing contact between organic matter, microorganisms, and dissolved oxygen, thereby promoting the oxidative decomposition of organic matter in the sewage.

[0003] Most of the shells of existing aeration devices are made of metal parts and assembled into a mold. There are small gaps between the parts, which may cause leakage. In addition, conventional aeration devices are difficult to withstand the corrosion of many media, which will cause problems such as reduced service life. When the aeration medium diffuses with water pressure, as the water pressure gradually decreases, the sewage discharge cannot ensure that the sludge and other substances in the wastewater tank will further react with the aerated water, resulting in poor aeration effect and low efficiency. In addition, the jet aeration device has aeration dead corners. When there are solids in the aeration medium of the aeration device, aeration can play a stirring and filtering role, but because the aeration pipeline is fixed, solid impurities will be concentrated in the same position of the filter pipeline, resulting in a reduced service life of the filter pipeline. At the same time, metal materials have the problems of high quality, high cost, and complex installation process. Utility Model Content

[0004] In view of this, the present invention aims to provide a jet aeration device to solve the problems of leakage, low efficiency, poor effect, high cost and complex installation of the aeration device.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a jet-type aeration device, which includes a glass fiber reinforced plastic tubular shell, a gas-liquid mixing chamber, an end plate and a reducing component, the reducing component and the glass fiber reinforced plastic tubular shell are both integrally formed structures, an end plate is provided on the inner side of one end of the glass fiber reinforced plastic tubular shell, a water inlet is provided on the end plate, a gas-liquid mixing chamber is provided behind the end plate, a plurality of air inlet interfaces are provided on the glass fiber reinforced plastic tubular shell at equal intervals along the circumferential direction, the air inlet interfaces are connected with the gas-liquid mixing chamber, a reducing component is provided behind the gas-liquid mixing chamber, the diameters of the two ends of the reducing component are larger than the diameter of the middle position of the reducing component, a groove is provided on the inner wall of the glass fiber reinforced plastic tubular shell, a sealing ring is provided in the groove, and the end plate and the reducing component are sealed and connected to the inside of the glass fiber reinforced plastic tubular shell through the groove and the sealing ring on the inner wall of the glass fiber reinforced plastic tubular shell.

[0006] Furthermore, the end plate and the diameter-changing component are respectively fixed to the interior of the glass fiber reinforced plastic tubular shell through blocks.

[0007] Furthermore, the end plate includes a sealing plate and a supporting plate, and the sealing plate and the supporting plate are fixed to the interior of the glass fiber reinforced plastic tubular shell through blocks and bolts.

[0008] Furthermore, a diffusion port is provided at the rear of the diameter-changing component.

[0009] Furthermore, the centers of the diffusion port, the diameter-changing component and the gas-liquid mixing chamber are on the same axis.

[0010] Furthermore, a thread is provided in the air inlet interface, and the air inlet interface is connected to the pneumatic quick plug via the thread.

[0011] Furthermore, the outer side of the pneumatic quick plug is connected to a compressed air pump.

[0012] Furthermore, the water inlet is conical.

[0013] Furthermore, the outer side of the water inlet is connected to a circulating water pump.

[0014] Furthermore, the diameter-changing component is made of ABS plastic.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The reducing component and the FRP tubular shell in the present invention are both formed in one piece. A groove is machined into the inner wall of the FRP tubular shell, and a sealing ring is arranged in the groove. The reducing component and the end plate are tightly connected to the inside of the FRP tubular shell through the sealing ring, thus avoiding the hidden seam existing in the metal shell during the assembly process in the prior art and improving the sealing performance of the aeration device.

[0017] 2. The reducing component in the utility model is made of ABS plastic, and the shell is made of fiberglass, which can effectively reduce the weight of the aeration device and avoid the problem of installation difficulties. At the same time, the fiberglass shell can effectively improve the corrosion resistance;

[0018] 3. The diameters on both sides of the variable diameter component of the utility model are larger than the middle diameter. The sudden change of the aeration pipeline increases the fluidity of water and the diffusion speed of the aeration medium, thereby improving the oxygen solubility and further enhancing the aeration effect.

[0019] 4. The utility model can stir the aeration medium by setting an air inlet interface in the gas-liquid mixing chamber and cooperating with a reducing component. When there are solids in the aeration medium, the aeration medium can be fully stirred at the position where the reducing component is located, so that the liquid and solid can be evenly diffused, thereby reducing the aeration dead corners of the aeration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the axial structure of the jet aeration device described in the utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the jet aeration device of the present invention;

[0023] Figure 3 This is a schematic structural diagram of the variable diameter component of the jet aeration device described in the present utility model.

[0024] 1. Gas-liquid mixing chamber; 2. Water inlet; 3. Pneumatic quick plug; 4. Variable diameter component; 5. Diffuser; 6. End plate; 7. Fiberglass tubular housing. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other in the absence of conflict, and the embodiments described are only part of the embodiments of the present invention, not all of the embodiments.

[0026] See also Figure 1-3The embodiment of the present invention is described as follows: a jet aeration device comprises a glass fiber reinforced plastic tubular shell 7, a gas-liquid mixing chamber 1, an end plate 6 and a reducing component 4. The reducing component 4 and the glass fiber reinforced plastic tubular shell 7 are both integrally formed structures. The glass fiber reinforced plastic tubular shell 7 and the reducing component 4 are integrally formed to avoid leakage during the aeration process. An end plate 6 is provided on the inner side of one end of the glass fiber reinforced plastic tubular shell 7. A water inlet 2 is provided on the end plate 6. A gas-liquid mixing chamber 1 is provided behind the end plate 6. The glass fiber reinforced plastic tubular shell 7 is provided with a plurality of air inlet interfaces at equal intervals along the circumferential direction. The air inlet interfaces are communicated with the gas-liquid mixing chamber 1. The aeration medium and air are fully mixed in the gas-liquid mixing chamber 1, thereby increasing the oxygen content of the aeration medium and promoting In order to oxidize and decompose organic matter in sewage, a reducing component 4 is provided at the rear of the gas-liquid mixing chamber 1. The diameters at both ends of the reducing component 4 are larger than the diameter at the middle position of the reducing component 4. The diameter of the reducing component first decreases and then returns to its original size, so that the flow rate of the aeration medium is increased and then released through the large diameter port. A groove is provided on the inner wall of the FRP tubular shell 7, and a sealing ring is provided in the groove. The end plate 6 and the reducing component 4 are sealed and connected to the inside of the FRP tubular shell 7 through the groove and the sealing ring on the inner wall of the FRP tubular shell 7. The sealing ring is provided in the groove to ensure that the reducing component 4 and the end plate 6 are sealed and connected to the inner wall of the FRP tubular shell 7 to prevent leakage. The sealing ring can also ensure the fixation of the position of the reducing component 4 and the end plate 6 while sealing.

[0027] The aeration medium enters the gas-liquid mixing chamber 1 through the water inlet 6, and at the same time, the compressed gas enters the gas-liquid mixing chamber 1 through a number of air inlet interfaces arranged at equal intervals in the circumferential direction of the gas-liquid mixing chamber 1. The aeration medium and the compressed gas in the gas-liquid mixing chamber 1 are fully mixed. The sewage mixed in the gas-liquid mixing chamber 1 reaches the reducing component 4, and the diameter of the reducing component is reduced and then restored to the original diameter, thereby increasing the flow rate of the sewage, so that the aeration medium achieves the effect of accelerated aeration and finally diffuses out.

[0028] The end plate 6 and the reducing component 4 are respectively fixed to the inside of the glass fiber reinforced plastic tubular shell 7 through blocks, and the end plate 6 and the reducing component 4 are further fixed to the glass fiber reinforced plastic tubular shell 7 through blocks.

[0029] The end plate 6 includes a sealing plate and a support plate, which are fixed to the inside of the glass fiber reinforced plastic tubular shell 7 through blocks and bolts. The sealing plate plays a sealing role, and the end plate 6 is sealed and connected to the glass fiber reinforced plastic tubular shell 7 through the sealing plate.

[0030] A diffusion port 5 is provided at the rear of the diameter-changing component 4 , and the aeration medium diffuses out through the diffusion port 5 after passing through the diameter-changing component 4 .

[0031] The centers of the diffuser 5, the diameter-changing component 4 and the gas-liquid mixing chamber 1 are on the same axis, ensuring that the aeration medium can flow through the same axis.

[0032] The air inlet interface is provided with a thread, the air inlet interface is connected to the pneumatic quick plug 3 via the thread, and the pneumatic quick plug 3 is screwed into the air inlet interface via the thread.

[0033] The outer side of the pneumatic quick plug 3 is connected to a compressed air pump, and the compressed air is pumped into the gas-liquid mixing chamber 1 through the compressed air pump.

[0034] The outer side of the water inlet 2 is connected to a circulating water pump, and the aeration medium is pumped into the water inlet 2 through the circulating water pump and then enters the gas-liquid mixing chamber 1.

[0035] The water inlet 2 is conical. Through the conical design, the water inlet 2 first reduces the radius of the water inlet 2 to increase the flow rate of the aeration medium, and then expands the radius to allow the aeration medium to diffuse over a large area into the gas-liquid mixing chamber 1, so that the compressed gas can be more fully integrated with the aeration medium.

[0036] The diameter-changing component 4 is made of ABS plastic and is manufactured through an integrated molding technology.

[0037] The reducing component 4 and the FRP tubular housing 7 are both manufactured using an integrated molding technology, effectively avoiding leakage problems caused by splicing; the FRP tubular housing 7 uses FRP as raw material, which improves corrosion resistance. The FRP tubular housing 7 is processed through a FRP winding process, which has high production efficiency, low cost, and is environmentally friendly and energy-saving; the diameters of the reducing component 7 at both ends are larger than the diameter at the middle position. By changing the diameter of the reducing component 4, the flow rate of the aeration medium during the aeration process is increased, and the aeration medium and compressed gas can be fully mixed in the reducing component 4, thereby improving the aeration efficiency and achieving a better aeration effect; by adopting a conical water inlet 2, the aeration medium is quickly diffused into the gas-liquid mixing chamber 1 to mix with the compressed gas, thereby increasing the oxygen content in the aeration medium and improving the aeration effect.

[0038] The embodiments of the present invention disclosed above are intended only to illustrate the present invention. These embodiments do not exhaust all details, nor do they limit the present invention to the specific embodiments described. Numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A jet aeration device, characterized in that: It comprises a glass fiber reinforced plastic tubular shell (7), a gas-liquid mixing chamber (1), an end plate (6) and a diameter-changing component (4), wherein the diameter-changing component (4) and the glass fiber reinforced plastic tubular shell (7) are both integrally formed structures, an end plate (6) is provided on the inner side of one end of the glass fiber reinforced plastic tubular shell (7), a water inlet (2) is provided on the end plate (6), a gas-liquid mixing chamber (1) is provided behind the end plate (6), a plurality of air inlet interfaces are provided at equal intervals along the circumferential direction of the glass fiber reinforced plastic tubular shell (7), the air inlet interfaces are communicated with the gas-liquid mixing chamber (1), a diameter-changing component (4) is provided behind the gas-liquid mixing chamber (1), the diameters of the two ends of the diameter-changing component (4) are larger than the diameter of the middle position of the diameter-changing component (4), a groove is provided on the inner wall of the glass fiber reinforced plastic tubular shell (7), a sealing ring is provided in the groove, and the end plate (6) and the diameter-changing component (4) are sealedly connected to the inside of the glass fiber reinforced plastic tubular shell (7) through the groove and the sealing ring on the inner wall of the glass fiber reinforced plastic tubular shell (7).

2. A jet aeration device according to claim 1, characterized in that: The end plate (6) and the diameter-changing component (4) are respectively fixed to the interior of the glass fiber reinforced plastic tubular shell (7) via a stopper.

3. A jet aeration device according to claim 1, characterized in that: The end plate (6) comprises a sealing plate and a supporting plate, and the sealing plate and the supporting plate are fixed to the interior of the glass fiber reinforced plastic tubular shell (7) via a stopper and bolts.

4. A jet aeration device according to claim 1, characterized in that: A diffusion port (5) is provided behind the diameter-changing component (4).

5. A jet aeration device according to claim 4, characterized in that: The centers of the diffusion port (5), the diameter-changing component (4) and the gas-liquid mixing chamber (1) are on the same axis.

6. A jet aeration device according to claim 1, characterized in that: A thread is provided in the air inlet interface, and the air inlet interface is connected to the pneumatic quick plug (3) via the thread.

7. A jet aeration device according to claim 6, characterized in that: The outer side of the pneumatic quick plug (3) is connected to a compressed air pump.

8. The jet aeration device according to claim 1, characterized in that: The outer side of the water inlet (2) is connected to a circulating water pump.

9. A jet aeration device according to claim 8, characterized in that: The water inlet (2) is conical.

10. The jet aeration device according to claim 1, characterized in that: The diameter-changing component (4) is made of ABS plastic.

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