A high-efficiency energy-saving super-high-concentration ozone catalytic oxidation reaction system

Abstract

The utility model relates to sewage treatment technical field discloses a kind of efficient energy-saving ultrahigh concentration ozone catalytic oxidation reaction systems, including pry platform, PLC cabinet, recycling module and mixed reaction module, the PLC cabinet, recycling module and mixed reaction module are respectively fixed on pry platform upper end, the recycling module includes oxygen generator, oxygen outlet pipe, ozone generator, oxygen backflow pipe, two gas flowmeters, ozone outlet pipe, backflow control valve and gas-liquid separator, the oxygen generator is connected between oxygen outlet pipe, the ozone generator is connected between gas-liquid separator by ozone outlet pipe, the gas-liquid separator gas outlet end is provided with ozone output pipe, the oxygen backflow pipe both ends are respectively connected in oxygen output pipe upper end and gas-liquid separator gas inlet end. In the utility model, the efficiency and cost of high COD sewage treatment are improved, and the effect of removing pollutants in water is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system. Background Technology

[0002] High-COD, recalcitrant industrial wastewater mostly originates from the chemical, pharmaceutical, printing and dyeing, and chemical industries. Its COD value often exceeds several thousand or even tens of thousands of mg / L. It contains benzene rings, heterocyclic rings, and long-chain alkanes, which are recalcitrant organic compounds. It may also be accompanied by heavy metals and salt pollutants. This type of wastewater is highly toxic and has poor biodegradability. Direct discharge will seriously damage the aquatic ecosystem and threaten drinking water safety. Due to its complex composition and stable chemical structure, it is difficult to degrade by conventional biological treatment. It requires advanced oxidation special processes, which are difficult and costly to treat. It is a key and difficult point in industrial wastewater treatment.

[0003] Existing methods for decomposing recalcitrant organic pollutants in high-COD wastewater often involve combining them with catalysts and other oxidation technologies. These methods can disrupt the molecular structure of pollutants, reduce the COD value of wastewater, and create conditions for subsequent treatment. However, the process of removing high-COD wastewater is costly to operate, consumes a lot of energy for superoxide generation, and some catalysts are expensive, easily damaged, have low treatment efficiency, and take a long time.

[0004] Therefore, those skilled in the art have provided a highly efficient, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly efficient, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system. This system reduces the cost of COD removal from wastewater, improves the efficiency of COD removal, and shortens the COD removal time.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A high-efficiency and energy-saving ultra-high concentration ozone catalytic oxidation reaction system includes a skid-mounted platform, a PLC cabinet, a recycling module, and a mixing reaction module, wherein the PLC cabinet, the recycling module, and the mixing reaction module are respectively fixed on the upper part of the skid-mounted platform. The recycling module includes an oxygen generator, an oxygen outlet pipe, an ozone generator, an oxygen return pipe, two gas flow meters, an ozone outlet pipe, a return control valve, and a gas-liquid separator. The oxygen generator and the ozone generator are connected through the oxygen outlet pipe, and the ozone generator and the gas-liquid separator are connected through the ozone outlet pipe. An ozone output pipe is provided at the outlet end of the gas-liquid separator, and the two ends of the oxygen return pipe are respectively connected to the upper end of the oxygen output pipe and the inlet end of the gas-liquid separator. The mixing reaction module includes a cavitation generator, a sewage pipe, a sewage flow sensor, an ejector, a transition pipe, and a pressure dissolved gas tank. A pressure sensor is installed in the middle of the upper end face of the pressure dissolved gas tank, and safety valves are fixedly installed on both sides of the pressure sensor on the upper end face of the pressure dissolved gas tank.

[0007] Furthermore, the reflux control valve is located in the middle of the oxygen reflux pipe, and the two gas flow meters are respectively located around the oxygen reflux pipe and the oxygen outlet pipe.

[0008] Furthermore, a concentration monitoring sensor is installed at the lower end of the ozone outlet pipe, and the other end of the ozone outlet pipe is connected to an ejector.

[0009] Furthermore, a first support base is fixedly installed at the lower end of the oxygen generator, and a second support base is fixedly installed at the lower end of the gas-liquid separator.

[0010] Furthermore, the wastewater flow sensor is installed at the inlet of the wastewater pipe, and the front and rear ends of the jet injector are fixedly connected to the wastewater pipe and the cavitation generator.

[0011] Furthermore, the cavitation generator and the pressure dissolved gas tank are connected by a transition pipe, and a first support plate is fixedly installed at the lower ends of both the front and rear ends of the sewage pipe, and a second support plate is fixedly installed at the lower sides of both sides of the pressure dissolved gas tank.

[0012] This utility model has the following beneficial effects: 1. The present invention proposes a high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system. By setting up a recycling module to recycle oxygen, it realizes the recycling of unreacted oxygen, fundamentally and significantly reducing oxygen production energy consumption and raw material consumption, and reducing operating costs.

[0013] 2. The present invention proposes a high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system, which greatly improves the mass transfer efficiency and oxidation capacity of ozone in water, thereby shortening the reaction time from 1-2 hours in the traditional process to less than 15 minutes, and significantly improving the COD removal rate in high COD wastewater, while greatly reducing the equipment footprint. Attached Figure Description

[0014] Figure 1 This is a first axonometric view of the present invention; Figure 2 This is a second axonometric view of the present invention; Figure 3 This is an isometric view of the recycling module of this utility model; Figure 4 This is an isometric view of the mixing reaction module of this utility model.

[0015] Legend: 1. Skid-mounted platform; 2. PLC cabinet; 3. Recycling module; 4. Mixing reaction module; 301. Oxygen generator; 302. First support base; 303. Oxygen outlet pipe; 304. Gas flow meter; 305. Ozone generator; 306. Reflux control valve; 307. Oxygen reflux pipe; 308. Gas-liquid separator; 309. Second support base; 3010. Ozone output pipe; 3011. Ozone outlet pipe; 3012. Concentration monitoring sensor; 401. Cavitation generator; 402. Ejector; 403. Sewage pipe; 404. Sewage flow sensor; 405. First support plate; 406. Second support plate; 407. Pressure dissolved gas tank; 408. Safety valve; 409. Pressure sensor; 4010. Transition pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1-4 One embodiment of this utility model is a high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system, which includes a skid-mounted platform 1, a PLC cabinet 2, a recycling module 3, and a mixing reaction module 4. The PLC cabinet 2, the recycling module 3, and the mixing reaction module 4 are respectively fixed on the upper end of the skid-mounted platform 1.

[0018] Specifically, by fixing the recycling module 3, the mixing reaction module 4, and the PLC cabinet 2 onto the skid-mounted platform 1 respectively, and pre-installing them on the skid-mounted platform 1, it is possible to save space, avoid civil engineering, and facilitate transportation and installation. Furthermore, the COD removal process of wastewater is automatically controlled by the PLC cabinet 2, eliminating the need for personnel to supervise.

[0019] Reference Figure 1 , Figure 2 , Figure 3The recycling module 3 includes an oxygen generator 301, an oxygen outlet pipe 303, an ozone generator 305, an oxygen return pipe 307, two gas flow meters 304, an ozone outlet pipe 3011, a return control valve 306, and a gas-liquid separator 308. The oxygen generator 301 and the ozone generator 305 are connected through the oxygen outlet pipe 303, and the ozone generator 305 and the gas-liquid separator 308 are connected through the ozone outlet pipe 3011. An ozone output pipe 3010 is provided at the outlet end of the gas-liquid separator 308, and the two ends of the oxygen return pipe 307 are respectively connected to the upper end of the oxygen output pipe and the inlet end of the gas-liquid separator 308. A reflux control valve 306 is located in the middle of the oxygen reflux pipe 307. Two gas flow meters 304 are respectively located around the oxygen reflux pipe 307 and the oxygen outlet pipe 303. A concentration monitoring sensor 3012 is installed at the lower end of the ozone outlet pipe 3011. The other end of the ozone output pipe 3010 is connected to the ejector 402. A first support base 302 is fixedly installed at the lower end of the oxygen generator 301. A second support base 309 is fixedly installed at the lower end of the gas-liquid separator 308.

[0020] Specifically, the oxygen generator 301 and ozone generator 305 are connected via an oxygen outlet pipe 303. The oxygen generator 301 provides the raw oxygen source for ozone generation. The ozone generator 305 receives the oxygen and generates an ozone mixture through a discharge process. The ozone generator 305 is then connected to a gas-liquid separator 308 via an ozone outlet pipe 3011 to separate trace amounts of liquid from the ozone mixture, ensuring gas purity. The ozone output pipe 3010 is connected to an ejector 402 for convenient ozone reaction. An oxygen return pipe 307 is connected at both ends to the upper end of the oxygen output pipe and the inlet end of the gas-liquid separator 308, respectively. This dedicated return channel returns unreacted oxygen after gas-liquid separation to the ozone generator 305, improving oxygen return efficiency. To improve efficiency and reduce operating costs, a reflux control valve 306 is installed in the middle of the oxygen reflux pipe 307. The reflux flow rate is adjusted according to sensor data to control the ozone generation efficiency. Gas flow meters 304 are installed around the oxygen reflux pipe 307 and the oxygen outlet pipe 303 to monitor the gas flow rate and ensure system stability. A concentration monitoring sensor 3012 is installed at the lower end of the ozone outlet pipe 3011 to detect the generated ozone concentration in real time and feed it back to the control system. A first support base 302 is fixedly installed at the lower end of the oxygen generator 301, and a second support base 309 is fixedly installed at the lower end of the gas-liquid separator 308. The first support base 302 and the second support base 309 support the oxygen generator 301 and the gas-liquid separator 308, respectively.

[0021] Reference Figure 1 , Figure 2 , Figure 4The mixing reaction module 4 includes a cavitation generator 401, a sewage pipe 403, a sewage flow sensor 404, an ejector 402, a transition pipe 4010, and a pressure dissolved gas tank 407. A pressure sensor 409 is provided in the middle of the upper end face of the pressure dissolved gas tank 407, and safety valves 408 are fixedly provided on both sides of the pressure sensor 409 on the upper end face of the pressure dissolved gas tank 407. Wastewater flow sensor 404 is installed at the inlet of wastewater pipe 403. The front and rear ends of jet injector 402 are fixedly connected to wastewater pipe 403 and cavitation generator 401. Cavitation generator 401 is connected to pressure dissolved gas tank 407 through transition pipe 4010. First support plate 405 is fixedly installed at the lower part of both the front and rear ends of wastewater pipe 403. Second support plate 406 is fixedly installed at the lower part of both sides of pressure dissolved gas tank 407.

[0022] Specifically, a pressure sensor 409 is installed in the middle of the upper end face of the pressure dissolved gas tank 407 to monitor the pressure inside the tank in real time, preventing overpressure or insufficient pressure from affecting the dissolved gas efficiency. Safety valves 408 are fixedly installed on both sides of the pressure sensor 409 on the upper end face of the pressure dissolved gas tank 407 as safety protection components, automatically releasing pressure when the tank pressure exceeds the limit. A sewage flow sensor 404 is installed at the inlet of the sewage pipe 403 to monitor the influent flow rate and provide feedback to the control system to adjust the ozone dosage. The ejector 402 is fixedly connected to the sewage pipe 403 and the cavitation generator 401 at both ends. Sewage, through the ejector 402, utilizes the negative pressure generated by the sewage flow to draw in high-concentration ozone from the ozone output pipe 3010, achieving initial gasification. The gas-liquid mixture is received from the jet ejector 402. The gas bubbles are broken by high-speed vortex rotation, which enhances the contact between gas and liquid. The cavitation generator 401 and the pressure dissolved gas tank 407 are connected by a transition pipe 4010 to maintain a certain pressure in the tank. This allows the refined ozone bubbles to dissolve efficiently in the wastewater, completing the core reaction, improving the efficiency of COD removal from wastewater, shortening the reaction time, and improving the removal capacity of organic matter and various pollutants in the water. The wastewater pipe 403 is fixedly equipped with first support plates 405 at both ends and the lower part of the pipe, and the pressure dissolved gas tank 407 is fixedly equipped with second support plates 406 at both sides and the lower part of the pressure dissolved gas tank 407, so that the wastewater pipe 403 and the pressure dissolved gas tank 407 are stably supported.

[0023] Working principle: PLC cabinet 2, recycling module 3 and mixing reaction module 4 are fixed on the upper end of skid-mounted platform 1 in advance. When needed, they can be placed outdoors without the need for civil engineering plant. When removing high COD wastewater, oxygen is output from oxygen generator 301 in recycling module 3 and output to ozone generator 305 through oxygen outlet pipe 303. After ozone is generated by discharge, the mixed gas enters gas-liquid separator 308 through ozone outlet pipe 3011 to separate high concentration ozone and unreacted oxygen. Unreacted oxygen is returned to the air inlet of ozone generator 305 through oxygen return pipe 307 to achieve recycling. The sewage pipe is connected to the sewage flow sensor 404, allowing the sewage to reach the ejector 402 through the sewage pipe 403. The ejector 402 draws in high-concentration ozone through the ozone output pipe 3010, causing the sewage and ozone to mix initially. The mixture then flows sequentially through the cavitation generator 401 for extreme bubble crushing, and through the transition pipe 4010 into the pressure dissolved gas tank 407 to maintain efficient mass transfer and quickly complete the reaction. Throughout the process, the PLC cabinet 2 is connected to the recycling module 3 and the mixing reaction module 4 to achieve fully automatic intelligent control.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system, comprising a skid-mounted platform (1), a PLC cabinet (2), a recycling module (3), and a mixing reaction module (4), characterized in that: The PLC cabinet (2), the recycling module (3) and the mixing reaction module (4) are respectively fixed on the upper end of the skid-mounted platform (1); The recycling module (3) includes an oxygen generator (301), an oxygen outlet pipe (303), an ozone generator (305), an oxygen return pipe (307), two gas flow meters (304), an ozone outlet pipe (3011), a return control valve (306), and a gas-liquid separator (308). The oxygen generator (301) and the ozone generator (305) are connected through the oxygen outlet pipe (303), and the ozone generator (305) and the gas-liquid separator (308) are connected through the ozone outlet pipe (3011). An ozone output pipe (3010) is provided at the outlet end of the gas-liquid separator (308). The two ends of the oxygen return pipe (307) are respectively connected to the upper end of the oxygen output pipe and the inlet end of the gas-liquid separator (308). The mixing reaction module (4) includes a cavitation generator (401), a sewage pipe (403), a sewage flow sensor (404), an ejector (402), a transition pipe (4010), and a pressure dissolved gas tank (407). A pressure sensor (409) is provided in the middle of the upper end face of the pressure dissolved gas tank (407). Safety valves (408) are fixedly provided on both sides of the upper end face of the pressure dissolved gas tank (407) located at the pressure sensor (409).

2. The high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system according to claim 1, characterized in that: The reflux control valve (306) is located in the middle of the oxygen reflux pipe (307), and the two gas flow meters (304) are respectively located around the oxygen reflux pipe (307) and the oxygen outlet pipe (303).

3. The high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system according to claim 1, characterized in that: A concentration monitoring sensor (3012) is installed at the lower end of the ozone outlet pipe (3011), and the other end of the ozone output pipe (3010) is connected to the jet injector (402).

4. The high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system according to claim 1, characterized in that: The oxygen generator (301) is fixedly provided with a first support base (302) at its lower end, and the gas-liquid separator (308) is fixedly provided with a second support base (309) at its lower end.

5. The high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system according to claim 1, characterized in that: The sewage flow sensor (404) is installed at the inlet of the sewage pipe (403), and the jet generator (402) is fixedly connected to the sewage pipe (403) and the cavitation generator (401) at both ends.

6. The high-efficiency, energy-saving, ultra-high concentration ozone catalytic oxidation reaction system according to claim 1, characterized in that: The cavitation generator (401) and the pressure dissolved gas tank (407) are connected by a transition pipe (4010). The sewage pipe (403) is fixedly provided with a first support plate (405) at both ends of the front and rear sides near the bottom. The pressure dissolved gas tank (407) is fixedly provided with a second support plate (406) at both sides near the bottom.

Images