Efficient dissolved air tank

Abstract

The utility model belongs to the technical field of environmental protection equipment, and relates to an efficient dissolved air tank which comprises a tank body, a water inlet pipe is arranged at one end of the tank body, the outlet end of the water inlet pipe is in a closing-in shape, the outlet end of the water inlet pipe is inserted into a throat pipe, the throat pipe is connected with a diffusion pipe, and the inner diameter of the diffusion pipe is gradually increased from an inlet to an outlet; a plurality of air inlets are formed in the throat pipe, the air inlets are connected with air pipes, the air pipes are connected with an air compressor outside the tank body, a thread structure is arranged in the diffusion pipe, and a water outlet pipe is arranged at the bottom of the dissolved air tank. The air dissolving device has the beneficial effects that a plurality of air inlets are formed in the throat pipe, so that compared with a technology with only one air inlet, the throat pipe can realize multidirectional air intake, the air-water mixing effect is favorably improved, and the air dissolving efficiency is improved. Meanwhile, a thread structure arranged on the inner wall of the diffusion pipe can form turbulent flow, the gas-water mixing effect is further improved, and the gas dissolving efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection equipment technology, and specifically relates to a high-efficiency dissolved gas tank. Background Technology

[0002] The dissolved air flotation (DAF) water purification process requires the use of a dissolved air tank. The tank ensures sufficient contact between water and air, dissolving the air in the water to form dissolved air water. When this dissolved air water is released into the purification tank and comes into contact with wastewater, the gas carries away suspended solids, thus achieving the purpose of DAF purification. However, existing DAF tanks have relatively low dissolving efficiency, which affects the subsequent treatment results. Utility Model Content

[0003] To address the shortcomings of low gas dissolving efficiency in existing gas dissolving tanks, this invention proposes a high-efficiency gas dissolving tank.

[0004] The technical solution adopted by this utility model is as follows: a high-efficiency dissolved air tank, including a tank body, an inlet pipe provided at one end of the tank body, the outlet end of the inlet pipe being constricted, the outlet end of the inlet pipe being inserted into a throat pipe, the throat pipe being connected to a diffuser pipe, the inner diameter of the diffuser pipe gradually increasing from its inlet to its outlet; multiple air inlets provided on the throat pipe, the air inlets being connected to air pipes, the air pipes being connected to an air compressor outside the tank body, the diffuser pipe having a threaded structure inside, and an outlet pipe provided at the bottom of the dissolved air tank.

[0005] In some embodiments, the air pipe includes an air intake main pipe, a connecting pipe, and a plurality of air intake branch pipes. The plurality of air intake branch pipes correspond one-to-one with and are connected to the plurality of air inlets. The connecting pipe connects the plurality of air intake branch pipes. The air intake main pipe is connected to the connecting pipe and extends to the outside of the tank to connect with the air compressor.

[0006] In some embodiments, the air intake branch pipe is inclined toward the water inlet pipe and is located at the front end of the water inlet pipe outlet.

[0007] In some embodiments, the number of intake manifolds is 3 to 8.

[0008] In some embodiments, the thread structure is a threaded protrusion or a threaded groove.

[0009] In some embodiments, the threaded structure includes a first threaded segment and a second threaded segment with opposite helical directions.

[0010] In some embodiments, a transition tube is provided between the throat tube and the diffuser tube, and the inner diameter of the transition tube is smaller than the diameter at the inlet of the diffuser tube.

[0011] In some embodiments, the bottom of the tank is further provided with a circulating water interface, which is connected to the water inlet pipe via a circulating pump.

[0012] In some embodiments, the tank is also equipped with a pressure gauge and a safety valve.

[0013] The beneficial effects of this utility model are as follows: This application provides multiple air inlets at the throat position, which, compared to technologies with only one air inlet, allows for multi-directional air intake, improving the mixing effect of air and water and increasing dissolved air efficiency. Simultaneously, the threaded structure on the inner wall of the diffuser creates turbulence, further enhancing the mixing effect of air and water and improving dissolved air efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the dissolved gas tank structure;

[0015] Figure 2 This is a schematic diagram of the connection structure between the throat tube and the air tube.

[0016] In the diagram: 1. Tank body, 2. Water inlet pipe, 3. Throat pipe, 4. Air inlet branch pipe, 5. Connecting pipe, 6. Air inlet main pipe, 7. Diffuser pipe, 8. First threaded section, 9. Second threaded section, 10. Transition pipe, 11. Water outlet pipe, 12. Circulating water circuit interface, 13. Pressure gauge, 14. Safety valve. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but it is not limited thereto. Any improvements or substitutions on the basic spirit of the embodiments of the present invention shall still fall within the scope of protection of the present invention.

[0018] like Figure 1 and 2 As shown, the technical solution adopted in this application is as follows: a high-efficiency dissolved air tank includes a tank body 1. One end of the tank body 1 is provided with a water inlet pipe 2. The outlet end of the water inlet pipe 2 is constricted. The outlet end of the water inlet pipe 2 is inserted into a throat pipe 3. The throat pipe 3 is connected to a diffuser pipe 7. The inner diameter of the diffuser pipe 7 gradually increases from its inlet to its outlet. The throat pipe 3 is provided with multiple air inlets. The air inlets are connected to air pipes. The air pipes are connected to an air compressor outside the tank body 1. The diffuser pipe 7 is provided with a threaded structure inside. The bottom of the dissolved air tank is provided with a water outlet pipe 11.

[0019] The working principle of the aforementioned high-efficiency dissolved air tank is as follows: Water is introduced through the inlet pipe 2. Because the outlet end of the inlet pipe 2 is constricted, it creates a Venturi effect with the throat pipe 3 and diffuser pipe 7, forming a negative pressure state at the throat pipe 3. This allows air to be drawn in through multiple air inlets on the throat pipe 3. Simultaneously, the multiple air inlets enter the throat pipe 3 from multiple directions, colliding with the water, which improves the mixing effect. The air and water mix in the diffuser pipe 7 to form dissolved air water, which enters the tank body 1. The threaded structure inside the diffuser pipe 7 facilitates turbulence, further promoting thorough mixing of air and water and improving the dissolved air effect. When dissolved air water needs to be introduced into the purified water tank, it is discharged through the outlet pipe 11.

[0020] like Figure 1 and 2 As shown, specifically, the air pipe includes a main air intake pipe 5, a connecting pipe 5, and multiple air intake branch pipes 4. Each of the multiple air intake branch pipes 4 corresponds to and is connected to one of the multiple air inlets. The connecting pipe 5 connects to the multiple air intake branch pipes 4. The main air intake pipe 5 is connected to the connecting pipe 5 and extends to the outside of the tank 1 to connect with the air compressor. Air enters through the main air intake pipe 5, passes through the connecting pipe 5, and then enters the multiple air intake branch pipes 4. It then flows into the throat pipe 3 through multiple air inlets, allowing for multi-directional and multi-angle contact and collision with water, resulting in more thorough mixing and better effect compared to a single air inlet.

[0021] like Figure 1 As shown, in one embodiment, the air intake branch pipe 4 is inclined toward the water inlet pipe 2 and located at the front end of the outlet end of the water inlet pipe 2. By inclinedly positioning the air intake branch pipe 4 toward the water inlet pipe 2 and placing it at the front end of the outlet end of the water inlet pipe 2, the air entering the throat pipe 3 directly impacts the water sprayed from the constricted outlet end of the water inlet pipe 2, which can disperse the water flow and allow the water and air to come into full contact, which is beneficial to the mixing effect and dissolved air efficiency.

[0022] Specifically, in some embodiments, the number of intake manifolds 4 is 3 to 8. For example... Figure 2 As shown, there are four intake manifolds 4, which are evenly distributed around the throat pipe 3. The connecting pipe 5 is circular and connected to all four intake manifolds 4.

[0023] like Figure 1 As shown, in some embodiments, the threaded structure is a threaded protrusion or a threaded groove. Threaded protrusions or grooves can effectively change the direction of water flow, generating turbulence and improving dissolved air efficiency.

[0024] As a further optimization of the above technical solution, such as Figure 1As shown, in some embodiments, the threaded structure includes a first threaded segment 8 and a second threaded segment 9 with opposite helical directions. The opposite helical directions of the first threaded segment 8 and the second threaded segment 9 can change the direction of the water flow spiral, further improving the mixing effect and helping to improve the dissolved air efficiency.

[0025] like Figure 1 As shown, in order to further extend the mixing path and time of water and air, and improve the mixing effect and dissolved air efficiency, in some embodiments, a transition pipe 10 is also provided between the throat pipe 3 and the diffuser pipe 7, and the inner diameter of the transition pipe 10 is smaller than the diameter at the inlet of the diffuser pipe 7.

[0026] Typically, the dissolved air water in tank 1 is only mixed once. If the initial mixing effect is insufficient to achieve the desired dissolved air effect, further dissolved air treatment is difficult, and gas may precipitate from the dissolved air water over time. To solve this problem, such as... Figure 1 As shown, in some embodiments, the bottom of the tank 1 is also provided with a circulating water interface 12, which is connected to the water inlet pipe 2 via a circulating pump. When the water and gas fail to achieve the desired dissolved gas effect after one mixing or when prolonged storage leads to gas precipitation, the raw water inlet can be shut off, the circulating pump can be turned on, and the circulating water interface 12 can be connected to allow the dissolved gas water in the tank 1 to be reintroduced through the water inlet pipe 2 for a second mixing and dissolving of the gas, thereby achieving the effect of multiple mixing and dissolving of the gas, or maintaining the dissolved gas effect and preventing gas precipitation.

[0027] like Figure 1 As shown, to improve the safety performance of the tank 1, in some embodiments, the tank 1 is also equipped with a pressure gauge 13 and a safety valve 14. The pressure gauge 13 can be used to determine the pressure inside the tank 1, and the safety valve 14 can release pressure in a timely manner when the pressure inside the tank 1 exceeds a set value, thus avoiding potential safety hazards.

[0028] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high efficiency gas dissolving tank characterized by, The utility model relates to a kind of gas dissolving tank, including tank body (1), the tank body (1) one end is equipped with water inlet pipe (2), the water inlet pipe (2) outlet end is in the form of necking, the outlet end of the water inlet pipe (2) is inserted into throat pipe (3), the throat pipe (3) is connected with diffusion pipe (7), the diffusion pipe (7) gradually increases from its import to outlet inner diameter;A plurality of air inlets are arranged on the throat pipe (3), the air inlet is connected with air pipe, the air pipe is connected with the air compressor outside tank body (1), the diffusion pipe (7) is internally provided with screw structure, the bottom of the gas dissolving tank is equipped with water outlet pipe (11).

2. The high efficiency gas dissolving tank according to claim 1, wherein The air pipe includes air inlet main pipe (6), connecting pipe (5) and multiple air inlet branch pipes (4), multiple air inlet branch pipes (4) are one-to-one corresponding and connected with multiple air inlets, the connecting pipe (5) is connected with multiple air inlet branch pipes (4), the air inlet main pipe (6) is connected with the connecting pipe (5), and extends to the outside of the tank body (1) and is connected with the air compressor.

3. The high efficiency gas dissolving tank according to claim 2, wherein The air inlet branch pipe (4) is inclinedly arranged towards the water inlet pipe (2), and the front end is located at the outlet end of the water inlet pipe (2).

4. The high-efficiency gas dissolving tank according to claim 2 or 3, characterized by, The number of air inlet branch pipes (4) is 3-8.

5. The high efficiency gas dissolving tank according to claim 1, wherein The screw structure is screw convex or screw groove.

6. The high-efficiency gas dissolving tank according to claim 1 or 5, wherein The screw structure includes first screw segment (8) and second screw segment (9) with opposite spiral directions.

7. The high efficiency gas dissolving tank according to claim 1, wherein The throat pipe (3) and the diffusion pipe (7) are further provided with transition pipe (10), and the inner diameter of the transition pipe (10) is smaller than the diameter of the diffusion pipe (7) at the import.

8. The high efficiency gas dissolving tank according to claim 1, wherein The bottom of the tank body (1) is further provided with circulating waterway interface (12), and the circulating waterway interface (12) is connected with the water inlet pipe (2) by circulating pump.

9. The high efficiency gas dissolving tank according to claim 1, wherein The tank body (1) is further provided with pressure gauge (13) and safety valve (14).

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