Ozone water decomposition system and method

Abstract

The present invention provides an ozone water decomposition system and method, comprising: a reaction chamber, an alkali pipe, a flow rate sensor located at the liquid inlet end of the reaction chamber, a liquid guide tube, and a controller. The top of the alkali pipe is connected to an alkali replenishment valve, and the bottom is connected to at least two alkali liquid valves via at least two alkali delivery hoses, each of which is connected to the reaction chamber. The upper and lower ends of the side walls of the alkali pipe are connected to liquid level hoses, each equipped with an upper liquid level sensor and a lower liquid level sensor. The liquid guide tube is used to transport ozone water to the reaction chamber. A guide structure is provided within the reaction chamber to guide the ozone water toward the alkali liquid valves. The flow rate sensor is used to collect the flow rate signal of the ozone water, and the controller is used to control the opening and closing of the at least two alkali liquid valves based on feedback from the flow rate sensor. The present invention can effectively improve the efficiency of ozone water decomposition.

Description

Technical Field

[0001] The present invention relates to the technical field of ozone water treatment, and in particular to an ozone water decomposition system and method. Background Art

[0002] Both ozone and ozone water possess extremely strong oxidizing properties. In solution, ozone's oxidation potential is only lower than that of fluorine. Ozone water can oxidize organic matter in solution into water, carbon dioxide, and organic acids, and can also oxidize metal elements to their highest valence. Consequently, due to its superior oxidizing power, ozone water has gradually begun to replace hydrogen peroxide in chemical cleaning. This application was first widely researched in the semiconductor field and has gradually expanded. In the photovoltaic field, ozone water's extremely strong oxidizing power is also being applied to cleaning processes. For example, in actual use, ozone water can be used for pre-texturing cleaning, post-texturing cleaning, post-alkaline polishing cleaning, and post-de-coating cleaning. It can also replace concentrated nitric acid in the pyramid rounding process of heterojunction solar cells. Furthermore, due to its oxidizing power, ozone and ozone water can also be used for sterilization and oxidation.

[0003] In the prior art, the ozone water decomposition system includes a reaction chamber, a liquid guide tube, and a liquid replenishing device. One end of the reaction chamber is connected to the liquid guide tube, and the side wall of the reaction chamber is connected to the liquid replenishing device. The liquid guide tube is used to discharge ozone water into the reaction chamber, and the liquid replenishing device is used to introduce the reaction liquid into the reaction chamber so that the ozone water and the reaction liquid react. During operation, the ozone water is discharged into the reaction chamber and reacts with the reaction liquid to decompose the ozone water. However, since the flow rate of the ozone water is faster than the flow rate of the reaction liquid, and the amount of ozone water is greater than the amount of the reaction liquid, the ozone water on the side of the reaction chamber away from the liquid inlet tube can only partially contact the reaction liquid or even cannot contact the reaction liquid, so that the ozone water and the reaction liquid cannot be fully mixed, resulting in the ozone water discharged from the reaction chamber not being completely decomposed.

[0004] Therefore, it is necessary to develop an ozone water decomposition system and method to fully decompose ozone water. Summary of the Invention

[0005] The object of the present invention is to provide an ozone water decomposition system and method to fully decompose ozone water.

[0006] In a first aspect, an embodiment of the present invention provides an ozone water decomposition system, comprising: a reaction chamber, an alkali pipe, a flow rate sensor provided at the liquid inlet end of the reaction chamber, a liquid guide pipe, and a controller; the top of the alkali pipe is connected to an alkali replenishing liquid valve, and the bottom is connected to at least two alkali liquid valves respectively through at least two alkali liquid hoses, and the at least two alkali liquid valves are connected to the reaction chamber; the upper and lower ends of the side walls of the alkali pipe are connected to a liquid level hose, and the liquid level hose is provided with an upper liquid level sensor and a lower liquid level sensor; the liquid guide pipe is used to transport ozone water to the reaction chamber; a guide structure is provided inside the reaction chamber for guiding the ozone water to move toward the alkali liquid valve; the flow rate sensor is used to collect the flow rate signal of the ozone water, and the controller is used to control the opening and closing of the at least two alkali liquid valves according to the feedback of the flow rate sensor.

[0007] In a possible embodiment, the guide structure includes a horizontal tube and a vertical tube connected to each other, wherein:

[0008] The diameter of the lumen of the horizontal tube gradually decreases along the direction of ozone water advance, so as to accelerate the speed of ozone water entering the vertical tube from the horizontal tube. The vertical tube is used to guide the ozone water to move upward in the vertical direction.

[0009] In another possible embodiment, it further includes N buffer structures arranged in the vertical tube, where N is a positive integer, wherein the N buffer structures are arranged along the axial direction of the vertical tube, so that when the ozone water hits the buffer structure, the flow rate of the ozone water can be reduced by the elasticity of the buffer structure itself.

[0010] In another possible embodiment, the buffer structure is a rubber tube, and the rubber tube has a trumpet-shaped structure, wherein the upper end opening of the rubber tube is smaller than the lower end opening.

[0011] In other possible embodiments, the reaction chamber is provided with a spray device connected to the at least two alkali liquid delivery valves, and the spray device includes: a main body and M first liquid outlet holes provided on the main body, where M is a positive integer, wherein the liquid outlet end of the first liquid outlet hole is arranged toward the upper end opening of the vertical tube, so that the direction of the ozone water sprayed from the vertical tube is opposite to the direction of the reaction liquid sprayed from the first liquid outlet hole.

[0012] In another possible embodiment, there is an angle a between the central axis direction of the first liquid outlet cavity and the outflow direction of the ozone water, and the angle a is 20° to 80°.

[0013] In another possible embodiment, a diversion structure is provided below the spray device, and the diversion structure includes a diversion cap, a diversion edge, and a plurality of second liquid outlet holes provided on the diversion edge, wherein: the diversion cap is provided at the lower end of the diversion edge; the upper end of the diversion edge is provided on the lower end surface of the main body, and the diversion edge is used to guide the ozone water to move away from the central axis of the diversion edge so that the ozone is horizontally spread on the outer surface of the diversion edge; the diversion edge is trumpet-shaped as a whole, and the opening diameter of the upper end of the diversion edge is larger than the opening diameter of the lower end of the diversion edge, so that the spreading area of ​​the ozone water gradually increases when it moves upward along the outer surface of the diversion edge.

[0014] In another possible embodiment, a plurality of the second liquid outlet holes completely cover the diversion edge, and a distance between two adjacent second liquid outlet holes is 0.5-1 mm.

[0015] In another possible embodiment, a rotating structure is provided between the diverter structure and the spray device, the rotating structure is used to connect the diverter structure and the spray device, and the rotating structure is used to drive the diverter structure to rotate relative to the spray device.

[0016] In a second aspect, an embodiment of the present invention provides an ozone water decomposition method based on the first aspect above, comprising: a liquid conduit transports ozone water to a reaction chamber, a flow rate sensor collects a flow rate signal of the ozone water entering the reaction chamber and feeds it back to a controller; the controller controls one or more of at least two alkali liquid delivery valves to open according to the received ozone water flow rate signal; the reaction liquid in the alkali pipe enters the reaction chamber through one or more opened alkali liquid delivery valves and merges with the ozone water.

[0017] The present invention provides an ozone water decomposition system and method, which changes the movement direction of ozone water through a guiding structure so that the ozone water can fully contact and mix with the reaction liquid. A controller controls the opening of one or more of at least two alkali liquid valves according to the flow rate of ozone water entering the reaction chamber to control the outflow amount and outflow rate of the reaction liquid, thereby achieving sufficient decomposition of the ozone water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 An overall schematic diagram of an ozone water decomposition system provided in an embodiment of the present invention;

[0019] Figure 2 A partial schematic diagram of a reaction chamber provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of a guide structure buffer structure provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of a flow diversion structure provided by an embodiment of the present invention;

[0022] Figure 5 This is a flow chart of the ozone water decomposition method provided by an embodiment of the present invention.

[0023] Reference numerals:

[0024] 100-reaction chamber; 110-horizontal tube; 111-vertical tube; 1111-buffer structure; 200-alkali tube; 210-alkali liquid replenishing valve; 220-alkali delivery hose; 230-alkali liquid delivery valve; 240-liquid level hose; 241-upper liquid level sensor; 242-lower liquid level sensor; 300-spraying device; 310-spraying device body; 320-first liquid outlet; 400-diverter structure; 410-diverter edge; 420-diverter cap; 430-second liquid outlet. DETAILED DESCRIPTION

[0025] In the description of the embodiments of the present invention, the terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, the singular expressions "a", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the following embodiments of the present invention, "at least one", "one or more" refer to one or more (including two). The term "and / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist; for example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0026] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the present invention include the specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in another way. The term "connected" includes direct and indirect connections, unless otherwise specified. "First" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0027] In the embodiments of the present invention, words such as "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0028] Embodiments of the present invention provide an ozone water decomposition system and method to achieve sufficient decomposition of ozone water.

[0029] Please refer to Figure 1 and Figure 2 An embodiment of the present invention provides an ozone water decomposition system, including: a reaction chamber 100, an alkali tube 200, a flow rate sensor provided at the liquid inlet end of the reaction chamber 100, a liquid guide tube, and a controller (not shown).

[0030] Optionally, the reaction chamber 100 and the alkali pipe 200 are further provided with exhaust holes.

[0031] The alkali pipe 200 is connected to an alkali replenishment valve 210 at its top and to at least two alkali delivery valves 230 at its bottom via at least two alkali delivery hoses 220. The at least two alkali delivery valves 230 are connected to the reaction chamber 100. Liquid level hoses 240 are connected to the upper and lower ends of the sidewalls of the alkali pipe 200. These hoses are equipped with an upper liquid level sensor 241 and a lower liquid level sensor 242.

[0032] The alkali tube 200 is used to store the reaction liquid, which can be a strongly alkaline sodium hydroxide (NaOH) solution that reacts with the ozone water to decompose the ozone water. Those skilled in the art can also select the type of reaction liquid as needed. Due to the nature of the communicating vessel, the reaction liquid within the liquid level hose 240 is flush with the liquid level of the reaction liquid within the alkali tube 200. The liquid level hose 240 and the upper and lower liquid level sensors 241 and 242 are all used to measure the amount of reaction liquid within the alkali tube 200. Based on the amount of reaction liquid, it can be determined whether the reaction liquid in the alkali tube 200 needs to be replenished, thereby ensuring the supply of reaction liquid within the reaction chamber 100 and ensuring that the ozone water decomposition system of this embodiment can continuously and efficiently decompose the ozone water.

[0033] Optionally, when the lower liquid level sensor 242 fails to register a liquid level signal, the alkali liquid replenishing valve 210 is opened to replenish the reaction liquid into the alkali tube 200. When both the lower liquid level sensor 242 and the upper liquid level sensor 241 are able to register liquid level signals, the alkali liquid replenishing valve 210 is closed to stop replenishing the reaction liquid into the alkali tube 200. Optionally, when only the upper liquid level sensor 241 fails to register a liquid level signal, the reaction liquid is slowly replenished into the alkali tube 200. When both the upper liquid level sensor 241 and the lower liquid level sensor 242 fail to register a liquid level signal, the rate of replenishing the reaction liquid is increased. These settings can be made by those skilled in the art.

[0034] The liquid conduit is used to transport ozone water to the reaction chamber 100. A guiding structure is provided inside the reaction chamber to guide the ozone water to move toward the alkali liquid valve 230. The flow rate sensor is used to collect the flow rate signal of the ozone water, and the controller is used to control the opening and closing of the at least two alkali liquid valves 230 according to the feedback of the flow rate sensor. In addition, the controller can also control the opening and closing of the alkali liquid valve 210 according to the feedback signals of the upper liquid level sensor 241 and the lower liquid level sensor 242. Optionally, the controller is a programmable logic controller (PLC).

[0035] Ozone water discharge is primarily divided into discharge during the production process and discharge during the liquid exchange process. The discharge cycles for the two differ: the former is typically discharged every few minutes, while the latter is typically discharged every one to two days. The amount of ozone water discharged during the production process is smaller than that during the liquid exchange process. Therefore, when decomposing ozone water, the amount of reactant added varies depending on the discharge process. In this embodiment, at least two alkali delivery hoses 220 and corresponding at least two alkali liquid valves 230 are provided to control the output volume and rate of the reactant in the alkali pipe 200.

[0036] At the same time, in this embodiment, a flow rate sensor and a controller are set at the liquid inlet end of the reaction chamber 100. The flow rate sensor feeds back the collected ozone water flow rate to the controller. The controller can control the opening and closing of at least two alkali liquid valves according to the flow rate of the ozone water. For example, when the number of the alkali liquid valves is two, when the ozone water is discharged during the production process, that is, when the discharge amount of ozone water is small, the controller controls one of the alkali liquid valves to open. Conversely, when the discharge amount of ozone water is large, the controller controls both alkali liquid valves to open, thereby controlling the output amount and output rate of the reaction liquid to ensure that the ozone water and the reaction water can be fully mixed in an appropriate proportion.

[0037] A guiding structure is provided inside the reaction chamber, which can change the direction of movement of the ozone water. The guiding structure includes a horizontal tube 110 and a vertical tube 111 connected to each other, wherein: the diameter of the lumen of the horizontal tube 110 gradually decreases along the direction of advance of the ozone water, so as to speed up the speed at which the ozone water enters the vertical tube 111 from the horizontal tube 110. The vertical tube 111 is used to guide the ozone water to move upward in the vertical direction, so that the direction of movement of the ozone water can be directly opposite to the direction of movement of the reaction liquid, so that the reaction liquid and the ozone water are fully contacted and mixed, thereby achieving the effect of highly efficient decomposition of the ozone water. In addition, the guiding mechanism guides the ozone water to be sprayed upward in the vertical direction, which can reduce the spraying rate of the ozone water, so that the reaction liquid has sufficient time to be fully mixed with the ozone water.

[0038] Please refer to Figure 3 In a possible embodiment, the ozone water decomposition system further includes N buffer structures 1111 disposed in the vertical tube 111, where N is a positive integer. The N buffer structures 1111 are disposed along the axial direction of the vertical tube 111, so that when the ozone water hits the buffer structures 1111, the elasticity of the buffer structures 1111 can reduce the flow rate of the ozone water, as shown in the figure.

[0039] In one embodiment, the buffer structure 1111 is a rubber tube, and the rubber tube is a trumpet-shaped structure, wherein the upper end opening of the rubber tube is smaller than the lower end opening.

[0040] In one embodiment, the buffer structure 1111 can be 1, 2, 3 or more. Preferably, the number of the buffer structure 1111 is 3. This arrangement can not only effectively slow down the speed of the ozone water, but also reduce the processing difficulty and cost. The working principle of slowing down the speed of the ozone water is as follows: Figure 3 In the example, the number of the buffer structures 1111 is 3. When the ozone water moves from bottom to top, it will first hit the bottom buffer structure 1111. Since the buffer structure 1111 itself has elasticity, the elastic deformation will slow down the speed of the ozone water for the first time. When the ozone water after the first delay hits the buffer structure 1111 in the middle layer, the speed of the ozone water will be delayed for the second time, and when it hits the buffer structure in the upper layer, the speed of the ozone water will be delayed for the third time. Figure 3 In the example, the speed of the ozone water slowed down by the three-layer buffer structure 1111 is neither too fast nor too high, so that the ozone water and the alkaline solution can effectively contact each other, thereby achieving the decomposition of the ozone water.

[0041] Please continue to refer to Figure 2In one possible embodiment, a spray device 300 connected to the at least two alkali liquid delivery valves 230 is disposed within the reaction chamber 100. The spray device 300 includes a main body 310 and M first liquid outlets 320 disposed on the main body 310, where M is a positive integer. The liquid outlet ends of the first liquid outlets 320 are disposed toward the upper end opening of the vertical tube 111, such that the direction of ozone water ejected from the vertical tube 111 and the direction of the reaction liquid ejected from the first liquid outlets 320 are opposite each other.

[0042] The spraying device 300 can spray the reaction liquid evenly inside the reaction chamber 100, thereby increasing the contact area between the reaction liquid and the ozone water, allowing the reaction liquid and the ozone water to be mixed more fully, thereby improving the degree of decomposition of the ozone water.

[0043] In one embodiment, the ozone water decomposition system further includes a pressurizing structure, which can be a booster pump. Preferably, the pressurizing structure can be provided on one of the alkali pipe 200, the alkali delivery hose 220, or the alkali liquid delivery valve 230, or can be provided on all of the alkali pipe 200, the alkali delivery hose 220, and the alkali liquid delivery valve 230. The main body 310 is provided with M first liquid outlet holes 320. Due to the limited space of the reaction chamber itself, when the number M is larger, that is, the number of first liquid outlet holes 320 on the main body 310 is larger, the aperture of the first liquid outlet holes 320 will be smaller, and the liquid resistance will be greater, which will affect the rate at which the reaction liquid is sprayed from the spray device. Exemplarily, the pressurizing structure is used to increase the pressure of the reaction liquid passing through the alkali pipe 200, the alkali delivery hose 220, or the alkali liquid delivery valve 230 by 0.1-0.3 MPa, so that the reaction liquid can flow smoothly from the spray device. When the pressure is increased by 0.1MPa, uniformly dripping droplets can be obtained, which can be fully mixed with ozone water when the ozone water flow rate is low, increasing the contact area with ozone water without wasting the reaction liquid, saving costs; when the pressure is increased to 0.2MPa, a more continuous liquid flow can be obtained, which can increase the contact area between the reaction liquid and ozone water and further accelerate the mixing rate of the reaction liquid and ozone water; and when it is increased to 0.3MPa, the reaction liquid can be sprayed out. When the ozone water flow rate is relatively large, the sprayed reaction liquid can be better mixed with ozone water, thereby improving the fullness of the decomposition of ozone water.

[0044] Optionally, there is an angle of degree a between the central axis of the cavity of the first liquid outlet hole 320 and the outflow direction of the ozone water. It should be understood that among the M first liquid outlet holes 320, the angle a between the central axis of the cavity of different first liquid outlet holes 320 and the outflow direction of the ozone water can be different degrees, which can be set by those skilled in the art. The existence of angle a can prevent the ozone water and the reaction liquid from colliding with each other. Since the flow rate of ozone water is faster than the flow rate of the reaction liquid, if the central axis direction of a first liquid outlet hole 320 is directly opposite the outflow direction of ozone water, part of the ozone water will collide directly with the reaction liquid in the first liquid outlet hole 320, and the reaction liquid will be pushed upward, which makes it difficult for the reaction liquid to flow out of the first liquid outlet hole 320, affecting the mixing effect of ozone water and reaction liquid. The existence of angle a in the present application makes the movement direction of the reaction liquid intersect with the movement direction of ozone water, which can ensure that the reaction liquid can always be sprayed out from the M first liquid outlet holes 320.

[0045] In one embodiment, the angle a is between 20° and 80°. This setting can prevent the ozone water from colliding directly with the reaction liquid while allowing the reaction liquid to spray into the entire space of the reaction chamber 100. Specifically, the angle a can be 20°, 50°, and 80°. When the angle a is 20°, it can prevent some ozone water from directly colliding with the reaction liquid in the first liquid outlet 320; when the angle a is 80°, the reaction liquid can spread throughout the entire reaction chamber 100, so that when the ozone water collides with the spray device 300, the part of the ozone water that has not come into contact with the reaction liquid can come into contact with the reaction liquid that is spread throughout the reaction chamber 100, thereby ensuring that the ozone water is in full contact with the reaction liquid and achieving the effect of sufficient decomposition of the ozone water. When the angle a is 50°, it can achieve both the functions of the angle a of 20° and the functions of the angle a of 80°, which will not be repeated here.

[0046] At the same time, since the angle a is 20° to 80°, there is no need to require high precision of the processing dimensions during processing, which can effectively reduce the processing difficulty.

[0047] Please refer to Figure 4 In one possible embodiment, a diversion structure 400 is provided below the spray device 300. The diversion structure 400 includes a diversion cap 420, a diversion edge 410, and a plurality of second liquid outlet holes 430 provided on the diversion edge 410. The diversion cap 420 is provided at the lower end of the diversion edge 410. The upper end of the diversion edge 410 is provided on the lower end surface of the main body 310. The diversion edge 410 is used to guide the ozone water away from the central axis of the diversion edge so that the ozone is horizontally spread on the outer surface of the diversion edge 410.

[0048] Optionally, several second liquid outlet holes 430 may be arranged opposite to the M first liquid outlet holes. Several second liquid outlet holes 430 may also cover the diversion edge 410, and the distance between two adjacent second liquid outlet holes 430 is 0.5-1 mm. When the distance between two adjacent second liquid outlet holes 430 is 0.5 mm, the distribution of the second liquid outlet holes 430 is relatively dense, and the sprayed reaction liquid is relatively fine, which can be sprayed more evenly inside the reaction chamber, increasing the contact density within the contact surface with the ozone water, so that the reaction liquid and the ozone water are fully mixed, and the ozone water can be decomposed more quickly and fully. When the distance between two adjacent second liquid outlet holes 430 is 1 mm, the cavity of the second liquid outlet hole 430 can be set to a larger size, which can speed up the spraying rate of the reaction liquid and the decomposition rate of the ozone water, and the sprayed reaction liquid is not easy to mix together, which can ensure that the reaction liquid is in uniform contact with the ozone water in the reaction chamber, so that the ozone water can be evenly mixed with the reaction liquid. Preferably, when the distance between two adjacent second liquid outlet holes 430 is 0.7 mm or 0.8 mm, it has the advantages of when the distance between two adjacent second liquid outlet holes 430 is 0.5 mm and 1 mm, which will not be repeated here.

[0049] In one embodiment, the diverter edge 410 is generally trumpet-shaped, and the diameter of the opening at the upper end of the diverter edge 410 is larger than the diameter of the opening at the lower end of the diverter edge 410, so that the ozone water gradually increases in surface area as it moves upward along the outer surface of the diverter edge 410. During operation, the ozone water first contacts the diverter cap 420 and is diverted onto the diverter edge 410. Since the ozone water has a certain speed, it can continue to move upward along the outer surface of the diverter edge 410. During this movement, the trumpet-shaped structure of the diverter edge 410 causes the ozone water to be spread over a larger surface area, thereby increasing the contact area between the ozone water and the reaction liquid.

[0050] In one embodiment, if Figure 4 As shown, the diverter edge 410 is cut into an upwardly concave arc structure in the vertical direction, and one side of the figure-eight structure is an upwardly concave arc structure. As the speed of the ozone water gradually decreases along the diverter edge 410, in order to ensure that the ozone water can better adhere to the outer surface of the diverter edge, in this embodiment, one side of the figure-eight structure is formed into an upwardly concave arc structure, and the slope of the arc structure gradually becomes gentle in the upward direction, thereby ensuring that the ozone water can always adhere to the outer surface of the diverter edge.

[0051] The diversion structure 400 can divert the ozone water sprayed from the guide structure, thereby increasing the area of ​​ozone water diffusion and allowing the ozone water to contact the reaction liquid over a larger area. During operation, after the ozone water hits the diversion cap 420, it is diverted upward along the outer surface of the diversion edge 410 with the diversion cap 420 as the center. In the process of moving along the outer surface of the diversion edge 410, the ozone water contacts and mixes with the reaction liquid sprayed from the second liquid outlet 430. On the outer surface of the diversion edge 410, due to the rapid flow of ozone water, negative pressure is generated, resulting in the internal pressure of the diversion edge 410 being greater than the external pressure of the diversion edge 410, thereby accelerating the reaction liquid to be quickly ejected from the diversion structure 400, contacting and mixing with the ozone water.

[0052] In one embodiment, a rotating structure is provided between the diverter structure 400 and the spray device, and the rotating structure is used to connect the diverter structure 400 and the spray device, and the rotating structure is used to drive the diverter structure 400 to rotate relative to the spray device. The purpose is that the diverter structure 400 rotates relative to the spray device, which can not only change the position of the second liquid outlet 430 by rotation, so that several second liquid outlets are in contact with the ozone water in 360 degrees, so that the reaction liquid sprayed through the second liquid outlet 430 can come into contact with the ozone water; but also can use the rotational force to throw the reaction liquid in the diverter edge 410 through the second liquid outlet 430 to avoid the reaction liquid from being deposited in the diverter edge 410; of course, this rotation process can also further increase the movement speed of the reaction liquid, expand the area of ​​the reaction liquid in the reaction chamber 100, and better fill the reaction chamber 100.

[0053] In one example, the rotation of the diversion edge can cause the hole wall of the second liquid outlet hole 430 to collide with the reaction liquid and the ozone water, stirring the reaction liquid and the ozone water, thereby accelerating the mixing rate of the reaction liquid and the ozone water.

[0054] The rotating structure can be a rotor, but is not limited to the rotor. For example, in one example, the rotating structure can also be a rotating shaft provided between the diverter structure 400 and the spray device, and the rotating shaft is used to connect the diverter structure 400 and the spray device, as well as the threaded groove provided on the outer wall of the diverter cap 420 and the diverter edge 410.

[0055] When the rotating structure is a rotor, it is driven by electricity; when the rotating structure is a combination of the rotating shaft and the thread groove, no electric drive is required, and the rotation process of the diverter structure 400 can be completed automatically. Compared with the rotor structure, it can not only reduce production costs but also improve the efficiency of the equipment. The rotation process can be completed automatically without manual control. Specifically, when the ozone water impacts vertically upward, the impact force of the ozone water and the existence of the thread groove will cause the diverter structure 400 to rotate.

[0056] Of course, in other examples, the thread groove can also be provided on the inner wall of the vertical tube 111 to ensure that the ozone water sprayed from the vertical tube 111 is in a rotating state. Preferably, the thread groove is provided on both the inner wall of the vertical tube 111 and the outer wall of the diverter cap 420 and the diverter edge 410.

[0057] Please refer to Figure 5 Based on the above ozone water decomposition system, the present invention also provides an ozone water decomposition method, comprising:

[0058] Step 1: The ozone water is transported to the reaction chamber 100 through the liquid guide tube. The flow rate sensor collects the flow rate signal of the ozone water entering the reaction chamber 100 and feeds it back to the controller.

[0059] Step 2: The controller controls one or more of the at least two alkali liquid delivery valves 230 to open according to the received ozone water flow rate signal.

[0060] Step 3: The reaction liquid in the alkali pipe 200 enters the reaction chamber 100 through one or more opened alkali liquid delivery valves 230 and merges with the ozone water.

[0061] In a specific embodiment, the ozone water decomposition method provided by the present invention further includes: the controller controls the opening and closing of the alkali liquid replenishing valve 210 according to the liquid level signals of the reaction liquid in the alkali pipe 200 fed back by the upper liquid level sensor 241 and the lower liquid level sensor 242.

[0062] In summary, the ozone water decomposition system and method of the present invention changes the movement direction of the ozone water through a guiding structure so that the ozone water can fully contact and mix with the reaction liquid. The controller controls the opening of one or more of the at least two alkali liquid valves according to the flow rate of the ozone water entering the reaction chamber to control the outflow amount and outflow rate of the reaction liquid, thereby achieving sufficient decomposition of the ozone water.

[0063] Furthermore, the amount of reaction liquid in the alkali pipe is detected by upper and lower liquid level sensors to ensure sufficient and stable supply of reaction liquid. A buffer structure is set to slow down the spraying speed of ozone water and a spray device is set to increase the contact area between the reaction liquid and ozone water. In addition, a diversion structure is set to divert the ozone water and form a negative pressure to increase the outflow rate of the reaction liquid, so that the reaction liquid can fully contact and mix with the ozone water, thereby improving the degree of decomposition of the ozone water.

[0064] While the embodiments of the present invention have been described in detail above, it will be apparent to those skilled in the art that various modifications and variations of these embodiments are possible. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the claims. Furthermore, the invention described herein is susceptible to other embodiments and may be practiced or implemented in a variety of ways.

Claims

1. An ozone water decomposition system, characterized in that: include: A reaction chamber, an alkali tube, a flow rate sensor provided at the liquid inlet end of the reaction chamber, a liquid guide tube, and a controller; The top of the alkali pipe is connected to the alkali replenishment valve, and the bottom is connected to at least two alkali delivery valves through at least two alkali delivery hoses, and the at least two alkali delivery valves are connected to the reaction chamber; the upper and lower ends of the side walls of the alkali pipe are connected to liquid level hoses, and the liquid level hoses are provided with an upper liquid level sensor and a lower liquid level sensor; The liquid guide tube is used to transport the ozone water to the reaction chamber; a guide structure is provided inside the reaction chamber to guide the ozone water to move toward the alkali liquid delivery valve; the flow rate sensor is used to collect the flow rate signal of the ozone water, and the controller is used to control the opening and closing of the at least two alkali liquid delivery valves according to the feedback of the flow rate sensor; The reaction chamber is provided with a spraying device connected to the at least two alkali liquid delivery valves; The spray device comprises: a main body; A diversion structure is provided below the spray device, and the diversion structure includes a diversion cap, a diversion edge, and a plurality of second liquid outlet holes provided on the diversion edge, wherein: The diverter cap is arranged at the lower end of the diverter edge; The upper end of the diverter edge is provided on the lower end surface of the main body, and the diverter edge is used to guide the ozone water to move away from the central axis of the diverter edge so that the ozone is horizontally spread on the outer surface of the diverter edge; The diversion edge is trumpet-shaped as a whole, and the diameter of the opening at the upper end of the diversion edge is larger than the diameter of the opening at the lower end of the diversion edge, so that the paving area of ​​the ozone water gradually increases when it moves upward along the outer surface of the diversion edge.

2. The ozone water decomposition system according to claim 1, characterized in that: The guide structure includes a horizontal pipe and a vertical pipe connected to each other, wherein: The diameter of the lumen of the horizontal tube gradually decreases along the direction of ozone water advance, so as to accelerate the speed of ozone water entering the vertical tube from the horizontal tube. The vertical tube is used to guide the ozone water to move upward in the vertical direction.

3. The ozone water decomposition system according to claim 2, characterized in that: It also includes N buffer structures arranged in the vertical tube, where N is a positive integer, wherein the N buffer structures are arranged along the axial direction of the vertical tube so that when the ozone water hits the buffer structure, the flow rate of the ozone water can be reduced through the elasticity of the buffer structure itself.

4. The ozone water decomposition system according to claim 3, characterized in that: The buffer structure is a rubber tube, and the rubber tube is a trumpet-shaped structure, wherein the upper end opening of the rubber tube is smaller than the lower end opening.

5. The ozone water decomposition system according to claim 2, characterized in that: The spraying device also includes: M first liquid outlet holes are provided on the main body, where M is a positive integer, wherein the liquid outlet ends of the first liquid outlet holes are arranged toward the upper end opening of the vertical tube, so that the direction of the ozone water sprayed from the vertical tube is opposite to the direction of the reaction liquid sprayed from the first liquid outlet holes.

6. The ozone water decomposition system according to claim 5, characterized in that: There is an angle a between the central axis direction of the first liquid outlet cavity and the outflow direction of the ozone water, and the degree of the angle a is 20° to 80°.

7. The ozone water decomposition system according to claim 1, characterized in that: A plurality of the second liquid outlet holes completely cover the diversion edge, and a distance between two adjacent second liquid outlet holes is 0.5-1 mm.

8. The ozone water decomposition system according to claim 1 or 7, characterized in that: A rotating structure is provided between the diverter structure and the spray device. The rotating structure is used to connect the diverter structure and the spray device, and the rotating structure is used to drive the diverter structure to perform rotational motion relative to the spray device.

9. An ozone water decomposition method for controlling the decomposition system according to any one of claims 1 to 8, characterized in that: include: The liquid guide tube transports ozone water to the reaction chamber, and the flow rate sensor collects the flow rate signal of the ozone water entering the reaction chamber and feeds it back to the controller; The controller controls one or more of the at least two alkali liquid delivery valves to open according to the received ozone water flow rate signal; The reaction liquid in the alkali pipe enters the reaction chamber through one or more opened alkali liquid delivery valves and merges with the ozone water.

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