Online accurate adding small-scale test device for intelligent ozone system

Abstract

The utility model relates to the technical field of water treatment, in particular to an on-line accurate adding small-scale test device for an intelligent ozone system, which comprises an ozone contact reaction tank provided with a water inlet pipe orifice for inputting water; the ozone preparation mechanism is used for preparing ozone with preset concentration; the precise adding mechanism is connected with the ozone preparation mechanism and the ozone contact reaction tank and is used for inputting ozone with a preset concentration into the ozone contact reaction tank to be mixed with the water body in the ozone contact reaction tank; the tail gas treatment mechanism is connected with the ozone contact reaction tank and is used for treating ozone in the tail gas discharged by the ozone contact reaction tank. According to the utility model, the Venturi negative pressure dosing principle is adopted, the water body in the ozone contact reaction tank is circularly treated, the reaction effect of ozone and the water body is improved, the ozone gas concentration instrument and the mass flow controller are arranged, and the small-gas-volume accurate dosing is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, and more specifically, to an online precise dosing pilot device for a smart ozone system. Background Art

[0002] Ozone oxidation is a technology widely used in the field of sewage treatment. Due to its strong oxidizing property, ozone can rapidly react with many organic pollutants in water and remove them. As a advanced treatment process, ozone oxidation is used to remove the refractory chemical oxygen demand (COD) and chromaticity in the secondary effluent of biochemical treatment. In the field of sewage treatment, to evaluate the removal effect of ozone oxidation on sewage, pilot devices are often used for experiments. By measuring the ozone dosage and ozone utilization rate, the ozone consumption actually reacting with the sewage is calculated; and according to the chemical oxygen demand (COD) or total organic carbon (TOC) of the sewage before and after the ozone oxidation process, the ozone consumption required to remove a unit of chemical oxygen demand (COD) or total organic carbon (TOC) is calculated to evaluate the technical and economic feasibility of ozone oxidation for sewage treatment.

[0003] However, there is no suitable pilot device in the prior art to simulate the pre-ozonation process. When simulating with the pilot devices in the prior art, there is a lack of accurate and effective micro-ozone dosing devices, and precise ozone dosing cannot be carried out, resulting in low prediction accuracy. Especially for newly built water plants or unprecedented events, due to the lack of historical and experimental data, it is very difficult to establish an intelligent ozone algorithm. Even if it takes a long time to train and establish an intelligent ozone algorithm, the prediction accuracy will not be very high. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an online precise dosing pilot device for a smart ozone system.

[0005] The technical solution adopted for an online precise dosing pilot device for a smart ozone system of the utility model is as follows:

[0006] An online precise dosing pilot device for a smart ozone system includes:

[0007] An ozone contact reaction tank, provided with a water inlet pipe for inputting water body;

[0008] An ozone configuration mechanism for configuring ozone with a preset concentration;

[0009] A precise dosing mechanism, connected to the ozone configuration mechanism and the ozone contact reaction tank, for inputting the ozone with a preset concentration into the ozone contact reaction tank to mix with the water body in the ozone contact reaction tank;

[0010] The tail gas treatment mechanism is connected to the ozone contact reaction tank and is used to treat the ozone in the tail gas discharged from the ozone contact reaction tank.

[0011] Furthermore, the ozone configuration mechanism includes an oxygen generator and an ozone generator connected to each other. The ozone generator is connected to the precise dosing mechanism through a first pipeline equipped with an ozone gas production concentration meter, a mass flow controller, and an ozone dosing solenoid valve.

[0012] Furthermore, the precise dosing mechanism includes a circulation pump and a Venturi water injector connected through a second pipeline. The circulation pump is connected to the circulating water outlet interface of the ozone contact reaction tank, and the Venturi water injector is connected to the ozone configuration mechanism and the circulating dosing pipeline of the ozone contact reaction tank, and is used to mix the ozone with a preset concentration configured by the ozone configuration mechanism and the water body circulated by the circulation pump and inject it into the ozone contact reaction tank.

[0013] Furthermore, an electromagnetic flowmeter and a circulation solenoid valve are provided on the second pipeline. The circulation solenoid valve is located between the electromagnetic flowmeter and the Venturi water injector; the second pipeline is connected to a third pipeline equipped with an external delivery solenoid valve.

[0014] Furthermore, an effluent total organic carbon detector is provided on the third pipeline.

[0015] Furthermore, one end of the circulating dosing pipeline extending into the ozone contact reaction tank is connected to a diffuser used to disperse the ozone and the water body into bubbles or airflows.

[0016] Furthermore, the circulating dosing pipeline extends into the water body inside the ozone contact reaction tank.

[0017] Furthermore, a water inlet baffle is provided in the ozone contact reaction tank and is relatively matched with the water inlet port.

[0018] Furthermore, the inner arc surface of the water inlet baffle faces the water inlet port.

[0019] Furthermore, a two-way breathing valve and a static pressure type liquid level gauge are configured at the top of the ozone contact reaction tank, a residual ozone concentration meter in water is configured at the side of the ozone contact reaction tank, and an emptying pipe with an automatic drainage solenoid valve is configured at the bottom of the ozone contact reaction tank.

[0020] As can be seen from the above solutions, the beneficial effects of the present utility model are:

[0021] An on-line precise dosing pilot device for a smart ozone system of the present utility model can solve problems such as the lack of training data in the early stage of the layout of a smart ozone dosing system in a water plant and the untimely response to emergencies. It adopts the Venturi negative pressure dosing principle to circulate and process the water body in the ozone contact reaction tank, improving the reaction effect between ozone and the water body. It is equipped with an ozone production concentration meter and a mass flow controller to achieve precise dosing of a small amount of gas. It is also equipped with an in-water residual ozone concentration meter and an effluent total organic carbon detector as feedback controls to effectively evaluate the ozone transfer efficiency and pollutant removal rate, so as to seek the optimal ozone dosing amount.

[0022] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, details are described as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0024] Figure 1 is the process flow diagram of the pilot device provided by the embodiment of the present utility model;

[0025] Figure 2 is the first direction schematic diagram of the pilot device provided by the embodiment of the present utility model;

[0026] Figure 3 is the second direction schematic diagram of the pilot device provided by the embodiment of the present utility model;

[0027] Figure 4 is the schematic diagram of the ozone contact reaction tank provided by the embodiment of the present utility model;

[0028] Figure 5 is the topology network diagram of the pilot device provided by the embodiment of the present utility model.

[0029] Icons: 001-bypass solenoid valve; 002-ozone dosing solenoid valve; 003-water inlet solenoid valve; 004-drain solenoid valve; 005-external delivery solenoid valve; 006-circulation solenoid valve; 100-oxygen generator; 200-ozone generator; 300-Venturi water ejector; 400-circulation pump; 500-ozone contact reaction tank; 501-exhaust gas destroyer pipe port; 502-static pressure level gauge pipe port; 503-two-way breathing valve pipe port; 504-window; 505-circulation dosing pipeline; 506- Water inlet baffle; 507-water inlet pipe; 508-pipe outlet for residual ozone concentration meter in water; 509-circulating water outlet interface; 510-pipe outlet for emptying solenoid valve; 520-base; 600-exhaust gas treatment mechanism; 620-two-way breathing valve; 700-local PLC cabinet; 710-ozone gas concentration meter; 720-static pressure level gauge; 730-residual ozone concentration meter in water; 740-electromagnetic flowmeter; 750-mass flow controller; 760-water outlet total organic carbon detector; 900-water plant automatic control system. DETAILED DESCRIPTION

[0030] In order to clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention, it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0032] The following is combined with Figures 1-5 The utility model is further described.

[0033] Embodiment 1

[0034] See also Figures 1-5The utility model provides an online precise dosing test device for a smart ozone system, comprising: an ozone contact reaction tank 500, provided with a water inlet 507 for inputting water; an ozone configuration mechanism, for configuring ozone of a preset concentration; the ozone configuration mechanism comprises: an oxygen generator 100 and an ozone generator 200 connected to each other, the ozone generator 200 is connected to the precise dosing mechanism through a first pipeline with an ozone gas concentration meter 710, a mass flow controller 750 and an ozone dosing solenoid valve 002; the precise dosing mechanism connects the ozone configuration mechanism and the ozone contact reaction tank 500, and is used to input ozone of a preset concentration into the ozone contact reaction tank 500. The precise dosing mechanism includes: a circulation pump 400 and a venturi water ejector 300 connected by a second pipeline, the circulation pump 400 is connected to the circulating water outlet interface 509 of the ozone contact reaction tank 500, the venturi water ejector 300 is connected to the ozone configuration mechanism and the circulating dosing pipeline 505 of the ozone contact reaction tank 500, so as to mix the ozone of the preset concentration configured by the ozone configuration mechanism and the water circulated by the circulation pump 400 and inject them into the ozone contact reaction tank 500; an exhaust gas treatment mechanism 600 is connected to the ozone contact reaction tank 500 to treat the ozone in the exhaust gas discharged from the ozone contact reaction tank 500.

[0035] The working principle and technical effects of the above technical solution are as follows:

[0036] The utility model is an online precision dosing test device for a smart ozone system. When conducting a test treatment, the water to be treated is input into the ozone contact reaction tank 500 through the water inlet port 507. The water inlet port 507 is provided with a water inlet solenoid valve 003, which is convenient for adopting a batch water inlet method to automatically inlet water. Then, ozone of a preset target concentration is prepared through the connected oxygen concentrator 100 and the ozone generator 200, and the ozone is transported to the precision dosing mechanism through the first pipeline, so as to be added to the ozone contact reaction tank 500 through the precision dosing mechanism. 00, an ozone gas concentration meter 710, a mass flow controller 750 and an ozone dosing solenoid valve 002 are arranged on the first pipeline, the ozone gas concentration meter 710 is used to detect whether the ozone concentration meets the preset requirements, the mass flow controller 750 is used to detect the ozone flow, and cooperates with the ozone dosing solenoid valve 002 to accurately control the amount of ozone added, so as to achieve accurate dosing of small amounts of gas, the circulating pump 400 is connected to the circulating water outlet tank interface 509 of the ozone contact reaction tank 500, and the water in the ozone contact reaction tank 500 can be pumped in and The ozone is re-injected into the ozone contact reaction tank 500 through the venturi water ejector 300 and the circulation injection pipeline 505 to realize the circulation of the water body. When the water body enters the venturi water ejector 300, it can be pre-mixed with the ozone that enters the venturi water ejector 300 through the first pipeline, and through the venturi negative pressure injection principle, the ozone of the preset concentration configured by the ozone configuration mechanism and the water body circulated by the circulation pump 400 are mixed and injected into the ozone contact reaction tank 500. The water flows through the venturi water ejector 300 to form a negative pressure, and the ozone is efficiently dissolved. In the water body, the water body in the ozone contact reaction tank 500 is circulated and treated, so that the contact effect between the water body and ozone is better and the reaction efficiency is higher; an exhaust gas treatment mechanism 600 is connected to the ozone contact reaction tank 500 to treat the ozone in the exhaust gas discharged from the ozone contact reaction tank 500; the exhaust gas treatment mechanism 600 includes a treatment tank filled with manganese dioxide and copper oxide-based catalysts to degrade the ozone concentration in the exhaust gas through manganese dioxide and copper oxide-based catalysts, which is suitable for the treatment of small amounts of ozone exhaust gas, and the ozone concentration after treatment meets the emission standards.

[0037] A bypass pipeline is provided on the first pipeline, and the bypass pipeline is located between the mass flow controller 750 and the ozone addition solenoid valve 002. A bypass solenoid valve 001 is provided on the bypass pipeline, and the bypass pipeline is connected to another exhaust gas treatment mechanism 600, so as to facilitate the continuous operation of the oxygen generator 100 and the ozone generator 200. By switching the bypass solenoid valve 001 and the ozone addition solenoid valve 002, ozone addition and bypass discharge are realized. The bypass ozone is treated by another exhaust gas destroyer 600 and then discharged in accordance with the emission standards, thereby reducing pollution to the atmospheric environment.

[0038] Embodiment 2

[0039] See also Figures 1-5, the ozone contact reaction tank 500, the ozone contact reaction tank 500 is a closed container made of stainless steel, and is equipped with a tail gas destroyer pipe port 501 on the top, and the tail gas destroyer pipe port 501 is connected to the tail gas treatment mechanism 600, which is convenient for degrading the ozone in the tail gas; the ozone contact reaction tank 500 is equipped with a static pressure level gauge pipe port 502 on the top, and the static pressure level gauge pipe port 502 is connected to the static pressure level gauge 720, which is convenient for opening the water inlet solenoid valve 003 on the water inlet pipe port 507 according to the needs of the upper computer to automatically inlet water, and the high liquid level stop valve of the static pressure level gauge 720; the ozone contact reaction tank 500 is equipped with a two-way breathing valve pipe port 503 on the top, which is connected to the two-way breathing valve. A two-way breathing valve 620 is connected to the suction valve pipe mouth 503; a viewing window 504 is provided on the side of the ozone contact reaction tank 500, and the viewing window 504 can be designed with a large front and rear area to facilitate observation of the internal reaction of the ozone contact reaction tank 500; a pipe mouth 508 for connecting to a residual ozone concentration meter in water is arranged on the side of the ozone contact reaction tank 500, and a residual ozone concentration meter 730 is connected to the pipe mouth 508 for connecting to the residual ozone concentration meter in water; a pipe mouth 510 for connecting to an emptying solenoid valve is arranged at the bottom of the ozone contact reaction tank 500, and an emptying pipe with an automatic liquid discharge solenoid valve 004 is connected to the pipe mouth 510 for connecting to the emptying solenoid valve; the ozone contact reaction tank 500 is installed on a base 520 to be supported by the base 520.

[0040] The second pipeline is provided with an electromagnetic flowmeter 740 and a circulation electromagnetic valve 006, and the circulation electromagnetic valve 006 is located between the electromagnetic flowmeter 740 and the venturi water ejector 300; the second pipeline is connected to the third pipeline with an external delivery electromagnetic valve 005; the third pipeline is provided with an outlet water total organic carbon detector 760.

[0041] The working principle and technical effects of the above technical solution are as follows:

[0042] The circulation pump 400 controls the water output by switching the circulation solenoid valve 006 and the external delivery solenoid valve 005. It can be used as a booster pump for the Venturi water ejector 300 and also as an external delivery pump. When delivering the water, it can be tested by the water outlet total organic carbon detector 760, and combined with the test results of the water residual ozone concentration meter 730 as feedback control, effectively evaluate the ozone transfer efficiency and pollutant removal rate, so as to find the optimal ozone dosage.

[0043] The ozone gas concentration meter 710, the static pressure level meter 720, the residual ozone concentration meter in water 730, the electromagnetic flow meter 740, the mass flow controller 750 and the outlet water total organic carbon detector 760 are all connected to the local PLC cabinet 700. The mass flow controller 750 adopts a high-precision small gas volume mass flow controller (0-3SLM) to accurately control the ozone dosage per unit time. The residual ozone concentration meter in water 730 is used to monitor the residual ozone concentration in water after the ozone reaction; the outlet water total organic carbon (TOC) detector (760) is used as feedback control to evaluate the ozone dosage performance to help find the optimal ozone dosage. The local PLC cabinet 700 is connected to the water plant automatic control system 900. The ozone gas concentration meter 710, the static pressure level meter 720, the residual ozone concentration meter in water 730, the electromagnetic flow meter 740, the mass flow controller 750 and the outlet water total organic carbon detector 760 respectively detect different data results and transmit them to the local PLC cabinet 700, which is automatically controlled by the local PLC cabinet 700 and realizes data interaction with the water plant automatic control system 900, providing data support for the smart ozone algorithm model and improving the prediction accuracy. All powered equipment, instrument valves, enter the local PLC cabinet 700, and realize data interaction with the water plant automatic control system 900 for intelligent ozone algorithm modeling and training; when the water plant encounters an emergency water quality event, the small test device can quickly conduct online simulation tests, collect data, seek the best ozone dosage, improve the algorithm model, and improve the prediction accuracy, so as to solve the problems of lack of training data in the early stage of the layout of the intelligent ozone dosing system of the water plant, and untimely response to emergencies. The overall skid-mounted design of the utility model is adopted for easy transportation and installation; in the utility model, the size of the ozone contact reaction tank 500 is: The batch water volume is 200L of raw water from the water plant, the maximum output of the ozone generator 200 is 10g / h, and the range of the mass flow controller 750 is 0~3SLM.

[0044] Embodiment 3

[0045] See also Figures 1-5 One end of the circulating dosing pipe 505 extending into the ozone contact reaction tank 500 is connected to a diffuser for dispersing ozone and water into bubbles or airflow; the circulating dosing pipe 505 extends into the water body in the ozone contact reaction tank 500. The ozone contact reaction tank 500 is provided with a water inlet baffle 506 corresponding to the water inlet pipe port 507; the inner arc surface of the water inlet baffle 506 is arranged toward the water inlet pipe port 507.

[0046] The end of the circulating dosing pipeline 505 extending into the ozone contact reaction tank 500 is connected to a diffuser for dispersing ozone and water into bubbles or airflow, which is conducive to increasing the reaction contact area between gas and liquid, thereby improving the reaction efficiency. The depth of the circulating dosing pipeline 505 extending into the ozone contact reaction tank 500 is combined with the positive correlation between ozone dosing efficiency and water depth, and the consideration that it is too close to the circulating water outlet tank interface 509 and is prone to short-circuiting; the setting of the water inlet baffle 506 can effectively guide the water inlet to different areas of the ozone contact reaction tank 500, so that the liquid flow is more uniform, avoiding local overflow and liquid unevenness, helping to reduce the turbulence generated when the water inlet flows into the ozone contact reaction tank 500, improving the overall flow pattern of the liquid, and promoting better mixing; it can help the liquid to be evenly distributed along the inner wall of the reaction tank, enhance the contact between the liquid and the reactant, and improve the reaction efficiency.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An online precise dosing test device for a smart ozone system, characterized in that: include: The ozone contact reaction tank (500) is provided with a water inlet (507) for inputting water; An ozone configuration mechanism, used to configure and form ozone of a preset concentration; A precise dosing mechanism, connected to the ozone configuration mechanism and the ozone contact reaction tank (500), for inputting ozone of a preset concentration into the ozone contact reaction tank (500) to mix with the water in the ozone contact reaction tank (500); The tail gas treatment mechanism (600) is connected to the ozone contact reaction tank (500) and is used to treat the ozone in the tail gas discharged from the ozone contact reaction tank (500).

2. According to claim 1, an online precise dosing test device for a smart ozone system is characterized in that: The ozone configuration mechanism comprises: an oxygen concentrator (100) and an ozone generator (200) connected to each other, wherein the ozone generator (200) is connected to the precise dosing mechanism via a first pipeline having an ozone gas concentration meter (710), a mass flow controller (750) and an ozone dosing solenoid valve (002).

3. The online precise dosing test device for a smart ozone system according to claim 1 is characterized in that: The precise dosing mechanism comprises: a circulation pump (400) and a venturi water ejector (300) connected via a second pipeline; the circulation pump (400) is connected to a circulating water outlet port (509) of an ozone contact reaction tank (500); the venturi water ejector (300) is connected to an ozone configuration mechanism and a circulation dosing pipeline (505) of the ozone contact reaction tank (500) to inject a mixture of ozone of a preset concentration configured by the ozone configuration mechanism and water circulated by the circulation pump (400) into the ozone contact reaction tank (500).

4. The online precise dosing test device for a smart ozone system according to claim 3 is characterized in that: The second pipeline is provided with an electromagnetic flowmeter (740) and a circulation electromagnetic valve (006), and the circulation electromagnetic valve (006) is located between the electromagnetic flowmeter (740) and the venturi water ejector (300); the second pipeline is connected to a third pipeline with an external delivery electromagnetic valve (005).

5. The online precise dosing test device for a smart ozone system according to claim 4 is characterized in that: The third pipeline is provided with an outlet water total organic carbon detector (760).

6. The online precise dosing test device for a smart ozone system according to claim 3 is characterized in that: One end of the circulating dosing pipeline (505) extending into the ozone contact reaction tank (500) is connected to a diffuser for dispersing ozone and water into bubbles or airflow.

7. The online precise dosing test device for a smart ozone system according to claim 6 is characterized in that: The circulation dosing pipeline (505) extends into the water body in the ozone contact reaction tank (500).

8. The online precise dosing test device for a smart ozone system according to claim 3 is characterized in that: A water inlet baffle (506) corresponding to the water inlet pipe opening (507) is provided in the ozone contact reaction tank (500).

9. The online precise dosing test device for a smart ozone system according to claim 8 is characterized in that: The inner arc surface of the water inlet baffle (506) is arranged toward the water inlet pipe opening (507).

10. The online precise dosing test device for a smart ozone system according to claim 1 is characterized in that: The top of the ozone contact reaction tank (500) is provided with a two-way breathing valve (620) and a static pressure level gauge (720), the side of the ozone contact reaction tank (500) is provided with a water residual ozone concentration meter (730), and the bottom of the ozone contact reaction tank (500) is provided with a drain pipe with an automatic drain solenoid valve (004).

Images