Controllable-condition pressurizing dissolving efficient ozone oxidation device

Abstract

The invention relates to a controllable-condition pressurizing dissolving efficient ozone oxidation device which comprises an ozone source device, an ozone generating device, a dissolved steam lifting pump, a Venturi pipeline mixer, a dissolved steam pressurizing pump, a pressure reaction tank, a steady-flow diffusion device, a pH regulating tank, a steam heating tank and a normal-pressure reaction tank, the pH regulating tank, the steam heating tank and the normal-pressure reaction tank are connected in sequence; the ozone gas source device, the ozone generating device, the Venturi pipeline mixer, the dissolved steam booster pump, the pressure reaction tank and the steady flow diffusion device are sequentially connected through pipelines. Compared with the prior art, the ozone reaction degree is fully improved by changing the conditions of water temperature, pH and the like and adopting the process of connecting the pressure reaction tank and the normal-pressure reaction in series after the steam is dissolved. By means of the process, the ozone oxidation rate is remarkably increased, the ozone utilization rate is increased, meanwhile, the ozone content in tail gas under the same adding condition can be reduced, and the ozone leakage risk is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a high-efficiency ozone oxidation device with controllable pressure-boosted dissolution. Background Art

[0002] Ozone has extremely strong oxidizing properties. In the field of water treatment, the oxidizing capacity of ozone is second only to fluorine. The current ozone production technology is relatively mature and easy to obtain. Under certain conditions, ozone can effectively remove COD, ammonia nitrogen, and difficult-to-degrade organic matter in water. It has a good inactivation and lethal effect on microorganisms, bacteria, and viruses. Its effect is better than commonly used disinfectants such as chlorine, chlorine dioxide, and chloramines. The remaining ozone in the reaction process can be decomposed by heating, catalysis, adsorption, etc. If properly controlled, it will not cause secondary impact on the environment. It is a clean disinfectant. At present, ozone has achieved good results in the fields of wastewater treatment and water purification, but the main problem is that ozone has low solubility, low reaction rate under normal conditions, and insufficient reaction progress.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The present invention provides a controllable condition pressurized dissolution high-efficiency ozone oxidation device to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A controllable condition pressurized dissolution high-efficiency ozone oxidation device, comprising an ozone source device, an ozone generator, a vapor lift pump, a venturi pipeline mixer, a vapor booster pump, a pressure reaction tank, a steady flow diffusion device, a pH adjustment tank, a steam heating tank, and a normal pressure reaction tank;

[0007] The pH adjustment tank, steam heating tank, and normal pressure reaction tank are connected in sequence;

[0008] The ozone source device, the ozone generating device, the venturi pipeline mixer, the vapor booster pump, the pressure reaction tank, and the steady flow diffusion device are connected in sequence through pipelines;

[0009] The steady flow diffusion device and the vapor lift pump are located in the normal pressure reaction tank, and the vapor lift pump is connected to the venturi pipe mixer through a pipeline.

[0010] Preferably, an ozone detector and an ozone flow detector are provided on the pipeline connecting the ozone generating device and the venturi pipeline mixer.

[0011] Preferably, a check valve is provided on the pipeline connecting the venturi pipeline mixer and the solvent vapor booster pump.

[0012] Preferably, the pressure reaction tank is filled with a filler.

[0013] Preferably, the filler is a porcelain Raschig ring or a stainless steel ring.

[0014] Preferably, an ozone tail gas destruction device is provided on the normal pressure reaction tank.

[0015] Preferably, a breathing valve is provided on the normal pressure reaction tank.

[0016] Preferably, a pH detector is provided in the pH adjustment tank.

[0017] Preferably, a temperature detector is provided in the steam heating pool.

[0018] Preferably, a pressure control valve is provided on the pipeline connecting the pressure reaction tank and the steady flow diffusion device.

[0019] Compared with the prior art, the present invention provides a controllable condition boosted dissolution high-efficiency ozone oxidation device, which fully improves the degree of ozone reaction by changing the water temperature, pH and other conditions, and adopting a process of connecting the post-dissolution pressure reaction tank and the normal pressure reaction in series. This process significantly improves the rate of ozone oxidation and the utilization rate of ozone, while reducing the content of ozone in the tail gas under the same addition conditions and reducing the risk of ozone leakage.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic structural diagram of a controllable condition pressurized dissolution high-efficiency ozone oxidation device provided by the present invention.

[0023] In the figure:

[0024] 1. Ozone source device; 2. Ozone generating device; 3. Ozone detector; 4. Ozone flow detector; 5. Vapor booster pump; 6. Venturi pipe mixer; 7. Check valve; 8. Vapor booster pump; 9. Pressure reaction tank; 10. Pressure control valve; 11. Steady flow diffusion device; 12. pH adjustment tank; 13. pH detector; 14. Steam heating tank; 15. Temperature detector; 16. Normal pressure reaction tank; 17. Breathing valve; 18. Ozone tail gas destruction device. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0026] like Figure 1 As shown, the embodiment of the present invention provides a controllable condition pressurized dissolution high-efficiency ozone oxidation device, including an ozone source device 1, an ozone generator 2, a vapor lift pump 5, a venturi pipeline mixer 6, a vapor booster pump 8, a pressure reaction tank 9, a steady flow diffusion device 11, a pH adjustment tank 12, a steam heating tank 14, and a normal pressure reaction tank 16. Among them, the pH adjustment tank 12, the steam heating tank 14, and the normal pressure reaction tank 16 are connected in sequence; the ozone source device 1, the ozone generator 2, the venturi pipeline mixer 6, the vapor booster pump 8, the pressure reaction tank 9, and the steady flow diffusion device 11 are connected in sequence through pipelines; the steady flow diffusion device 11 and the vapor lift pump 5 are located in the normal pressure reaction tank 16, and the vapor lift pump 5 is connected to the venturi pipeline mixer 6 through a pipeline.

[0027] In the controllable condition boosted dissolution high-efficiency ozone oxidation device provided by the above embodiment of the present invention, the ozone source device 1 is mainly divided into two categories. The air source mainly includes: air compressor, cold dryer, gas storage tank, flow meter, regulating valve, etc.; the oxygen source mainly includes: oxygen storage tank, flow meter, regulating valve, etc. The ozone generating device 2 mainly includes: ozone generator, cooling water system, related valves and pressure instruments, etc. At the same time, an ozone detector 3 and an ozone flow detector 4 are arranged on the pipeline connecting the ozone generating device 2 and the venturi pipe mixer 6. Of course, the above-mentioned ozone source device 1 and ozone generating device 2 are both currently conventional ozone generating devices, and ozone generating devices of other structures also fall within the protection scope of the present invention.

[0028] In the controllable condition boosted dissolution high-efficiency ozone oxidation device provided by the above embodiment of the present invention, the venturi pipeline mixer 6 includes a water inlet end, an air inlet end, and an air outlet end, wherein the water inlet end is connected to the vapor lift pump 5, the air inlet end is connected to the ozone generator 2, and the air outlet end is connected to the pressure reaction tank 9. In this embodiment, an ozone detector and an ozone flow detector 4 are provided on the pipeline connecting the ozone generator 2 and the venturi pipeline mixer 6. A check valve 7 is provided on the pipeline connecting the venturi pipeline mixer 6 and the vapor booster pump 8.

[0029] In the controllable condition pressurized dissolution high-efficiency ozone oxidation device provided by the above embodiment of the present invention, the pressure reaction tank 9 can be filled with fillers such as porcelain Raschig rings and stainless steel rings to increase the ozone dissolution efficiency.

[0030] In the controllable condition pressurized dissolution high-efficiency ozone oxidation device provided by the above embodiment of the present invention, an ozone tail gas destruction device 18 is provided on the normal pressure reaction tank 16. A breathing valve 17 is provided on the normal pressure reaction tank 16. A pH detector 13 is provided in the pH adjustment tank 12. A temperature detector 15 is provided in the steam heating tank 14. A pressure control valve 10 is provided on the pipeline connecting the pressure reaction tank 9 and the steady flow diffusion device 11.

[0031] In the controllable condition pressurized dissolution high-efficiency ozone oxidation device provided by the above embodiment of the present invention, the steady-flow diffusion device 11 adopts a diaphragm, a water retaining plate, or a combination of a diaphragm and a water retaining plate.

[0032] The specific working steps of the controllable condition pressurized dissolution high-efficiency ozone oxidation device provided by the present invention are as follows:

[0033] The organic wastewater first enters the pH adjustment tank 12, which adjusts the solution to a suitable pH by adding liquid alkali. A pH detector 13 is set in the pH adjustment tank 12. After the addition of liquid alkali, automatic control is achieved. The effluent from the pH adjustment tank 12 enters the steam heating tank 14, which heats the wastewater by direct steam heating. A temperature detector 15 is set in the steam heating tank 14, and the steam input is linked to it to achieve automatic control. The water from the steam heating pool 14 enters the normal pressure reaction pool 16. No ozone is added at the front end of the normal pressure reaction pool 16. A vapor lift pump 5 is set here. The vapor lift pump 5 lifts the wastewater to the venturi pipe mixer 6. The ozonated oxygen (or ozonated air) generated by the ozone generator 2 is adsorbed into the wastewater at the throat of the venturi pipe mixer 6 in a negative pressure state. After intense mixing, it is pressurized by the vapor booster pump 8 and enters the pressure reaction tank 9. Under higher pressure, the ozone molecules obtain multiple power to break through the gas film and liquid film, transfer to the liquid phase, and react with organic matter in the liquid phase. The water from the pressure reaction tank 9 enters the normal pressure reaction pool 16. A steady flow diffusion device 11 is used in the pool. The remaining unreacted ozone in the water from the pressure reaction tank 9 is further contacted and reacted in the normal pressure reaction pool 16. In this way, through the two-stage utilization of ozone, the ozone utilization rate is improved and the emission of residual ozone can be reduced. The valve of the breathing valve 17 can maintain the pressure balance in the normal pressure reaction tank 16, and the excess ozone can be discharged into the atmosphere after being treated by the ozone tail gas destruction device 18 to meet the standards, without causing pollution to the atmosphere. In the above process, adjustments can be made according to the water quality of the incoming water, including: adjustment of water temperature, adjustment of pH in water, adjustment of the flow rate of the vapor lift pump 5, adjustment of the pressure in the pressure reaction tank 9, etc., so as to adapt to different water qualities of the incoming water and improve the efficiency of ozone oxidation.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A controllable condition pressurized dissolution high-efficiency ozone oxidation device, characterized in that: It includes an ozone source device, an ozone generator, a vapor lift pump, a venturi pipeline mixer, a vapor booster pump, a pressure reaction tank, a steady flow diffusion device, a pH adjustment tank, a steam heating tank, and a normal pressure reaction tank; The pH adjustment tank, steam heating tank, and normal pressure reaction tank are connected in sequence; The ozone source device, the ozone generating device, the venturi pipeline mixer, the vapor booster pump, the pressure reaction tank, and the steady flow diffusion device are sequentially connected through pipelines; The steady flow diffusion device and the vapor lift pump are located in the normal pressure reaction tank, and the vapor lift pump is connected to the venturi pipeline mixer through a pipeline.

2. The controllable condition pressurized dissolution high-efficiency ozone oxidation device according to claim 1 is characterized in that: An ozone detector and an ozone flow detector are arranged on the pipeline connecting the ozone generating device and the venturi pipeline mixer.

3. The controllable condition pressurized dissolution high-efficiency ozone oxidation device according to claim 2 is characterized in that: A check valve is arranged on the pipeline connecting the venturi pipeline mixer and the solvent vapor booster pump.

4. The controllable condition pressurized dissolution high-efficiency ozone oxidation device according to claim 3 is characterized in that: The pressure reaction tank is filled with a filler.

5. The controllable condition pressurized dissolution high-efficiency ozone oxidation device according to claim 4 is characterized in that: The filler is a porcelain Raschig ring or a stainless steel ring.

6. The controllable condition pressurized dissolution high-efficiency ozone oxidation device according to claim 5 is characterized in that: An ozone tail gas destruction device is provided on the normal pressure reaction tank.

7. The controllable condition pressurized dissolution high-efficiency ozone oxidation device according to claim 6 is characterized in that: A breathing valve is provided on the normal pressure reaction tank.

8. The controllable condition pressurized dissolution high-efficiency ozone oxidation device according to claim 7 is characterized in that: A pH detector is provided in the pH adjustment tank.

9. The controllable condition pressurized dissolution high-efficiency ozone oxidation device according to claim 8, characterized in that: A temperature detector is provided in the steam heating pool.

10. The controllable condition pressurized dissolution high-efficiency ozone oxidation device according to claim 9, characterized in that: A pressure control valve is arranged on the pipeline connecting the pressure reaction tank and the steady flow diffusion device.

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