A waste liquid treatment device for an oxygen fractionation system

Abstract

The utility model provides a kind of waste liquid treatment device for oxygen fractionation system, including tank, liquid inlet pipe, liquid outlet pipe, the top end of the tank is fixedly connected with liquid inlet pipe;The inside fixed connection of the tank has fixed link.The utility model has the advantages that: flow distributor scatters waste liquid flow, through the bottom of flow distributor natural drop to flow distributor, then through the uniform and comprehensive drop of numerous leakage holes of flow distributor, so that waste liquid drop can be fully contacted with the ozone gas of inlet pipe, fully disinfect and sterilize, by setting flow distributor and flow distributor, waste liquid flow is scattered and makes it through the uniform and comprehensive drop of numerous leakage holes of flow distributor, let waste liquid drop can be fully contacted with the ozone gas of inlet pipe.Reaction.Ozone has strong oxidizing property, can effectively kill bacteria in waste liquid, solve the problem of bacteria breeding in oxygen fractionation system cooling water waste liquid, ensure the normal operation of oxygen fractionation system and product quality.

Description

Technical Field

[0001] This utility model relates to the field of oxygen fractionation waste liquid treatment technology, and in particular to a waste liquid treatment device for an oxygen fractionation system. Background Technology

[0002] Oxygen fractionation systems are core equipment in industrial gas production, generating large amounts of cooling water waste during cryogenic distillation. This waste water is typically recycled, but over long-term operation, it easily breeds bacteria, algae, and other microorganisms, and accumulates solid impurities such as pipeline corrosion products and environmental dust. If this waste water is discharged or recycled without proper treatment, it will cause a series of problems: Firstly, bacteria and other microorganisms will cause biofouling on system pipelines and heat exchange equipment, reducing heat exchange efficiency, increasing energy consumption, and even leading to equipment corrosion and blockage, seriously affecting the long-term, stable, and safe operation of the oxygen fractionation system; secondly, impurity particles will accelerate equipment wear, affecting the purity of the final separated oxygen product.

[0003] Currently, there are several conventional technical methods for treating such industrial cooling water waste. For example, direct discharge not only wastes water resources but may also burden the environment due to pollutants in the waste. Some systems use simple sedimentation or filtration, but these methods mainly target solid impurities and have limited effectiveness against microorganisms. In addition, there are methods that add chemical disinfectants (such as chlorine-based agents), but this method may introduce new chemicals, posing a risk of residue and potentially causing secondary pollution to the distillation system or the oxygen in the final product. Furthermore, long-term use may lead to bacterial resistance. While physical methods such as ultraviolet disinfection leave no residue, their bactericidal effect is significantly reduced for wastewater with high turbidity due to poor penetration, and they cannot remove particulate impurities from the water.

[0004] Therefore, existing technologies for treating cooling water waste liquid from oxygen fractionation systems have shortcomings such as incomplete treatment effect and inability to simultaneously and effectively address the dual requirements of sterilization and impurity removal. Therefore, a waste liquid treatment device for oxygen fractionation systems is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0006] Therefore, one objective of this utility model is to provide a waste liquid treatment device for an oxygen fractionation system, so as to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0007] To achieve the above objectives, one embodiment of the present invention provides a waste liquid treatment device for an oxygen fractionation system, comprising a tank, an inlet pipe, and an outlet pipe, wherein the inlet pipe is fixedly connected to the top of the tank. A fixing rod is fixedly connected inside the tank, and a flow divider is fixedly connected to the outer surface of the fixing rod; The diverter is conical, with its tip pointing upwards and located below the end of the inlet pipe; A gap is left between the bottom edge of the distributor and the inner wall of the tank; A diffuser is fixedly connected inside the tank. The diffuser is conical and has several leakage holes. An air inlet pipe is fixedly connected to the side of the tank, and an air outlet pipe is fixedly connected to the side of the tank. The bottom of the main tank is detachably connected to a secondary tank, the bottom of the secondary tank is fixedly connected to a liquid outlet pipe, and a filter layer is fixedly connected inside the secondary tank. A bracket is fixedly connected to the outer surface of the auxiliary tank.

[0008] Preferably, in any of the above embodiments, the tank body is made of stainless steel, and the liquid inlet pipe is connected to the center of the top surface of the tank body.

[0009] The above technical solution utilizes a device specifically designed for treating cooling water wastewater from oxygen fractionation systems. This wastewater contains bacteria, impurities, and particles. During operation, the wastewater enters the tank through the inlet pipe. Inside the tank, a fixed rod is attached to which a cone-shaped distributor with its tip pointing upwards is fixedly connected. The tip of the distributor is located below the end of the inlet pipe. The wastewater flow impacts the distributor, is dispersed by it, and then drips naturally down the bottom edge of the distributor.

[0010] At this point, ozone gas is introduced into the tank through the inlet pipe. The diffuser, located directly below the distributor and above the inlet pipe, is conical and has several perforations. Waste liquid dripping from the bottom edge of the distributor falls onto the diffuser and drips evenly and comprehensively through its numerous perforations. This allows the waste liquid droplets to fully contact and react with the ozone gas introduced through the inlet pipe. Ozone, with its strong oxidizing properties, can effectively disinfect and sterilize the bacteria in the waste liquid.

[0011] After disinfection and sterilization, all waste liquid droplets enter the filter layer inside the auxiliary tank, which is detachably connected to the bottom of the main tank. The filter layer is specifically an activated carbon packing layer or a plastic packing layer, which can remove impurities from the waste liquid. Finally, the treated waste liquid is output from the outlet pipe at the bottom of the auxiliary tank.

[0012] Preferably, in any of the above embodiments, the fixing rod is horizontally positioned and welded to the tank body.

[0013] Preferably, in any of the above embodiments, the fixing rod is welded to the distributor, and the diffuser is located directly below the distributor.

[0014] Preferably, in any of the above embodiments, the diffuser is located directly above the air intake pipe, and the diffuser is welded to the inner wall of the tank.

[0015] The core design of this device is as follows: the distributor disperses the waste liquid flow, allowing it to drip naturally from the bottom edge of the distributor onto the diffuser. From there, the drips are evenly and comprehensively distributed through numerous holes in the diffuser, ensuring that the waste liquid droplets fully contact and react with the ozone gas introduced through the inlet pipe, achieving thorough disinfection and sterilization. By using the distributor and diffuser, the waste liquid flow is dispersed and allowed to drip evenly and comprehensively through the numerous holes in the diffuser, ensuring that the waste liquid droplets fully contact and react with the ozone gas introduced through the inlet pipe. Ozone has strong oxidizing properties and can effectively kill bacteria in the waste liquid, solving the problem of bacterial growth in the cooling water waste liquid of the oxygen fractionation system, and ensuring the normal operation of the oxygen fractionation system and product quality.

[0016] The filter layer inside the auxiliary tank can be an activated carbon packing layer or a plastic packing layer. It can adsorb and filter impurities in the disinfected waste liquid, remove impurities from the waste liquid, further improve the quality of the cooling water, make it meet the standards for recycling, and reduce the waste of water resources.

[0017] Preferably, in any of the above embodiments, ozone gas is introduced into the tank through the air inlet pipe, and the auxiliary tank is connected to the main tank via a flange.

[0018] Preferably, as described in any of the above embodiments, the filter layer is an activated carbon packing layer or a plastic packing layer. The filter layer has a porous structure, utilizing activated carbon material to adsorb particulate impurities in the waste liquid, or to directly intercept and filter impurity particles.

[0019] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: This waste liquid treatment device for oxygen fractionation systems uses a distributor to disperse the waste liquid flow, allowing it to drip naturally from the bottom edge of the distributor onto a diffuser. The dripping then occurs evenly and comprehensively through numerous holes in the diffuser, ensuring the waste liquid droplets fully contact and react with the ozone gas introduced through the inlet pipe, resulting in thorough disinfection and sterilization. By using a distributor and diffuser, the waste liquid flow is dispersed and dripped evenly and comprehensively through the numerous holes in the diffuser, allowing the waste liquid droplets to fully contact and react with the ozone gas introduced through the inlet pipe. Ozone has strong oxidizing properties and can effectively kill bacteria in the waste liquid, solving the problem of bacterial growth in the cooling water waste liquid of the oxygen fractionation system, and ensuring the normal operation of the oxygen fractionation system and product quality.

[0020] The filter layer inside the auxiliary tank can be an activated carbon packing layer or a plastic packing layer. It can adsorb and filter impurities in the disinfected waste liquid, remove impurities from the waste liquid, further improve the quality of the cooling water, make it meet the standards for recycling, and reduce the waste of water resources.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a structural schematic diagram of the present invention from a second perspective; Figure 3 This is a schematic diagram of the diffuser structure of this utility model; Figure 4 This is a partial structural diagram of the tank body of this utility model.

[0023] In the diagram: 1-Tank body, 2-Inlet pipe, 3-Outlet pipe, 5-Fixing rod, 6-Diverter, 7-Diffuser, 8-Leak hole, 9-Air inlet pipe, 10-Air outlet pipe, 11-Sub-tank, 12-Filter layer, 13-Support. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 mechanical connection or an electrical 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 according to the specific circumstances.

[0026] like Figure 1-4 As shown, the waste liquid treatment device for the oxygen fractionation system includes a tank 1, an inlet pipe 2, and an outlet pipe 3. The inlet pipe 2 is fixedly connected to the top of the tank 1. A fixing rod 5 is fixedly connected inside the tank body 1, and a flow divider 6 is fixedly connected to the outer surface of the fixing rod 5. The diverter 6 is conical, with its tip pointing upwards. The tip of the diverter 6 is located below the end of the inlet pipe 2. A gap is left between the bottom edge of the distributor 6 and the inner wall of the tank 1; A diffuser 7 is fixedly connected inside the tank body 1. The diffuser 7 is conical and has several leakage holes 8. An air inlet pipe 9 is fixedly connected to the side of the tank body 1, and an air outlet pipe 10 is fixedly connected to the side of the tank body 1. A secondary tank 11 is detachably connected to the bottom of the tank body 1. A liquid outlet pipe 3 is fixedly connected to the bottom of the secondary tank 11. A filter layer 12 is fixedly connected inside the secondary tank 11. A bracket 13 is fixedly connected to the outer surface of the auxiliary tank 11.

[0027] Example 1: The tank body 1 is made of stainless steel, and the inlet pipe 2 is connected to the center of the top surface of the tank body 1. The fixing rod 5 is horizontal and welded to the tank body 1. The fixing rod 5 is welded to the distributor 6, and the diffuser 7 is located directly below the distributor 6. The diffuser 7 is located directly above the air inlet pipe 9 and is welded to the inner wall of the tank body 1. Ozone gas is introduced into the tank body 1 through the air inlet pipe 9, and the auxiliary tank 11 is connected to the tank body 1 through a flange. The filter layer 12 is specifically an activated carbon packing layer or a plastic packing layer.

[0028] Example 2: This device is specifically designed for the treatment of cooling water waste liquid from oxygen fractionation systems. This waste liquid contains bacteria, impurities, and particles. During operation, the cooling water waste liquid enters the tank 1 through the inlet pipe 2. Since a fixed rod 5 is installed inside the tank 1, and a cone-shaped distributor 6 with its tip pointing upwards is fixedly connected to the fixed rod 5, with the tip of the distributor 6 located below the end of the inlet pipe 2, the waste liquid flow impacts the distributor 6, is dispersed by the distributor 6, and then drips naturally down the bottom edge of the distributor 6.

[0029] At this time, ozone gas is introduced into the tank 1 through the inlet pipe 9, while the diffuser 7 is located directly below the distributor 6 and directly above the inlet pipe 9. The diffuser 7 is conical and has several leakage holes 8. Waste liquid dripping from the bottom edge of the distributor 6 falls onto the diffuser 7 and drips evenly and comprehensively through the numerous leakage holes 8. In this way, the waste liquid droplets can fully contact and react with the ozone gas introduced through the inlet pipe 9. Ozone has strong oxidizing properties and can thoroughly disinfect and sterilize the bacteria in the waste liquid.

[0030] After disinfection and sterilization, all the waste liquid droplets enter the filter layer 12 inside the auxiliary tank 11, which is detachably connected to the bottom of the main tank 1. The filter layer 12 is specifically an activated carbon packing layer or a plastic packing layer, which can remove impurities from the waste liquid. Finally, the treated waste liquid is output from the outlet pipe 3 at the bottom of the auxiliary tank 11.

[0031] The working principle of this utility model is as follows: In a certain oxygen fractionation system, during the circulation process, the cooling water becomes contaminated with bacteria due to contact with air and other elements, and it also adsorbs some impurities, leading to a decline in cooling water quality and affecting the normal operation of the oxygen fractionation system. Therefore, a wastewater treatment device specifically designed for oxygen fractionation systems is used to treat the cooling water wastewater.

[0032] First, install the device. The tank body 1 is made of stainless steel. The liquid inlet pipe 2 is connected to the center of the top surface of the tank body 1. The fixing rod 5 is placed horizontally and welded to the tank body 1. The diverter 6 is welded to the fixing rod 5. The diffuser 7 is welded to the inner wall of the tank body 1 and is located directly below the diverter 6 and directly above the air inlet pipe 9. The auxiliary tank 11 is detachably connected to the bottom of the tank body 1 through a flange. The auxiliary tank 11 is equipped with an activated carbon packing layer as a filter layer 12.

[0033] When the device is turned on, the cooling water waste liquid generated by the oxygen fractionation system enters the tank 1 through the inlet pipe 2. The waste liquid flows and is dispersed by impacting the distributor 6, then drips naturally from the bottom edge of the distributor 6 onto the diffuser 7, where it drips evenly and comprehensively through the leak holes 8. At the same time, ozone gas is introduced into the tank 1 through the air inlet pipe 9, and the waste liquid droplets fully contact and react with the ozone gas, disinfecting and sterilizing the bacteria in the waste liquid.

[0034] After disinfection and sterilization, the waste liquid droplets enter the activated carbon packing layer in the auxiliary tank 11, where the activated carbon packing layer adsorbs and filters impurities in the waste liquid. The treated waste liquid is output from the outlet pipe 3 at the bottom of the auxiliary tank 11. At this time, the output cooling water has basically removed bacteria and impurities, reaching the standard for reuse, and is reintroduced into the oxygen fractionation system for recycling.

[0035] Compared with the prior art, the present invention has the following advantages: This waste liquid treatment device for an oxygen fractionation system uses a distributor 6 to disperse the waste liquid flow, allowing it to drip naturally from the bottom edge of the distributor 6 onto a diffuser 7. The dripping then occurs evenly and comprehensively through numerous holes in the diffuser 7, ensuring the waste liquid droplets fully contact and react with the ozone gas introduced through the inlet pipe 9, achieving thorough disinfection and sterilization. By using the distributor 6 and diffuser 7, the waste liquid flow is dispersed and dripped evenly and comprehensively through the numerous holes 8 in the diffuser 7, allowing the waste liquid droplets to fully contact and react with the ozone gas introduced through the inlet pipe 9. Ozone has strong oxidizing properties and can effectively kill bacteria in the waste liquid, solving the problem of bacterial growth in the cooling water waste liquid of the oxygen fractionation system, and ensuring the normal operation of the oxygen fractionation system and product quality.

[0036] The filter layer 12 installed inside the auxiliary tank 11 can be an activated carbon packing layer or a plastic packing layer. It can adsorb and filter impurity particles in the waste liquid after disinfection and sterilization, remove impurities from the waste liquid, further improve the quality of cooling water, make it meet the standards for recycling, and reduce the waste of water resources.

Claims

1. A waste liquid treatment device for an oxygen fractionation system, characterized in that, It includes a tank body (1), an inlet pipe (2), and an outlet pipe (3), with the inlet pipe (2) fixedly connected to the top of the tank body (1). A fixing rod (5) is fixedly connected inside the tank (1), and a flow divider (6) is fixedly connected to the outer surface of the fixing rod (5). The diverter (6) is conical, with its tip pointing upwards and located below the end of the inlet pipe (2). A gap is left between the bottom edge of the diverter (6) and the inner wall of the tank (1); A diffuser (7) is fixedly connected inside the tank (1). The diffuser (7) is conical and has several leakage holes (8). An air inlet pipe (9) is fixedly connected to the side of the tank (1), and an air outlet pipe (10) is fixedly connected to the side of the tank (1). The bottom of the tank (1) is detachably connected to a secondary tank (11), the bottom of the secondary tank (11) is fixedly connected to a liquid outlet pipe (3), and a filter layer (12) is fixedly connected inside the secondary tank (11). A bracket (13) is fixedly connected to the outer surface of the auxiliary tank (11).

2. The waste liquid treatment device for an oxygen fractionation system as described in claim 1, characterized in that: The tank body (1) is made of stainless steel, and the liquid inlet pipe (2) is connected to the center of the top surface of the tank body (1).

3. The waste liquid treatment device for an oxygen fractionation system as described in claim 2, characterized in that: The fixing rod (5) is horizontal and is welded to the tank body (1).

4. The waste liquid treatment device for an oxygen fractionation system as described in claim 3, characterized in that: The fixing rod (5) is welded to the diverter (6), and the diffuser (7) is located directly below the diverter (6).

5. The waste liquid treatment device for an oxygen fractionation system as described in claim 4, characterized in that: The diffuser (7) is located directly above the air inlet pipe (9), and the diffuser (7) is welded to the inner wall of the tank (1).

6. The waste liquid treatment device for an oxygen fractionation system as described in claim 5, characterized in that: The air inlet pipe (9) introduces ozone gas into the tank body (1), and the auxiliary tank (11) is connected to the tank body (1) through a flange.

7. A waste liquid treatment device for an oxygen fractionation system as described in claim 6, characterized in that: The filter layer (12) is specifically an activated carbon filler layer or a plastic filler layer.

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