Ozone small-scale experiment device

Abstract

The utility model discloses an ozone small-scale experiment device, and relates to the technical field of ozone experiment equipment. An ozone generator is connected to an air inlet at the lower end of an ozone reaction column through an ozone inlet pipe, an ozone flow meter is arranged on the ozone inlet pipe, an exhaust pipe is arranged between the ozone generator and the ozone flow meter, and an ozone concentration detector and an ozone destroying device are sequentially connected onto the exhaust pipe. The upper end of the ozone reaction column is communicated with a gas inlet of the ozone destroying device through a reaction column gas outlet pipe; the lower end of the ozone reaction column is connected with a raw water inlet system and a dosing system; the ozone reaction column is also provided with a circulating system and a drain pipe, a water outlet of the circulating system and a water outlet of the drain pipe are arranged at the upper part of the ozone reaction column, and a water return port of the circulating system is arranged at the lower end of the ozone reaction column; the device is convenient for simulating working conditions in practical engineering application of ozone oxidation, is high in integration level and integrity, is simple to operate, and is convenient for carrying out ozone oxidation experiments.

Description

Technical Field

[0001] The utility model relates to the technical field of ozone experimental equipment, in particular to an ozone bench-scale experimental device. Background Technique

[0002] As a strong oxidant, ozone can oxidize pollutants in water to achieve the purpose of disinfection, oxidation or decolorization, and has broad applications in water treatment. To meet the growing application requirements, basic research on ozone oxidation has always been a popular research direction, and many universities and research institutions have carried out a lot of basic research on this for many years.

[0003] However, most basic research cannot well reflect the working conditions in actual applications, manifested in: only batch experiments can be carried out, and continuous flow operation cannot be achieved. For example, in the utility model patent with the publication number CN209583740U and the name of an ozone advanced oxidation experimental device, the analytical instrument composed of an air inlet system, a reaction system, an air outlet system and a data acquisition device disclosed in it, although the functions and analysis are relatively complete, it only stays in the laboratory and cannot simulate the production process, so the guiding significance of the experimental results for production operations is insufficient;

[0004] The adjustable range of parameters is small, or even almost non-adjustable. For complex actual wastewater, the adjustable range of parameters is insufficient. The equipment is usually assembled from scattered equipment, with low integration and may be incomplete. For example, there is no ozone tail gas destruction device, and a fume hood is used to undertake the function of tail gas treatment. In the invention patent with the publication number CN107687107B and the name of a safe ozone bleaching experimental device and method, an experimental device for absorbing tail gas with potassium iodide is disclosed. Although the functions of this device are relatively complete, it mainly stays in the laboratory stage and also cannot truly simulate the on-line production working conditions. Therefore, there is an urgent need for an ozone bench-scale experimental device to solve this problem. Content of the Utility Model

[0005] The purpose of the utility model is to provide an ozone bench-scale experimental device to solve the problem that the existing ozone experimental equipment cannot truly simulate the on-line production working conditions.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an ozone bench-scale experimental device, including an ozone generator and an ozone reaction column. The ozone generator is connected to the air inlet at the lower end of the ozone reaction column through an ozone inlet pipe. An ozone flowmeter is arranged on the ozone inlet pipe. An exhaust pipe is arranged between the ozone generator and the ozone flowmeter on the ozone inlet pipe, and an ozone concentration detector and an ozone destruction device are sequentially connected to its pipeline. The upper end of the ozone reaction column is communicated with the air inlet of the ozone destruction device through a reaction column outlet pipe;

[0007] The lower end of the ozone reaction column is also provided with a water inlet, and the water inlet is connected to a tee through a water inlet pipe, and its two paths are respectively connected to the raw water inlet system and the chemical dosing system;

[0008] The ozone reaction column is also provided with a circulation system and a drain pipe. The outlet of the circulation system and the outlet of the drain pipe are both arranged at the upper part of the ozone reaction column, and the water return port of the circulation system is arranged at the lower end of the ozone reaction column.

[0009] Preferably, the raw water inlet system includes a raw water pipe connected to the tee, and also includes a raw water pump, a raw water flow meter, and a raw water valve arranged in sequence along the pipeline from the water source to the tee.

[0010] Preferably, the chemical dosing system includes a chemical dosing pipe connected to the tee, and also includes a chemical dosing pump, a chemical dosing flow meter, and a chemical dosing valve arranged in sequence along the pipeline from the chemical dosing storage tank to the tee.

[0011] Preferably, the circulation system includes a circulation pipe connecting the outlet and the water return port of the circulation system, and also includes a circulation pump, a circulation flow meter, and a circulation valve arranged in sequence along the pipeline from the outlet to the water return port.

[0012] Preferably, the upper end height of the ozone inlet pipe is not lower than the upper end height of the liquid level inside the ozone reaction column.

[0013] Preferably, a catalyst filter screen is detachably arranged at the lower part inside the ozone reaction column, and a catalyst is placed thereon. The ozone inlet pipe, the water inlet pipe, and the water return pipeline of the circulation system are all communicated to the lower part of the catalyst filter screen; the upper end of the ozone reaction column is a detachable reaction column top plug.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. Compared with the ozone experiments generally carried out in the laboratory, which can only operate in a batch mode, the ozone pilot-scale experimental device of the present invention can operate either continuously or batchwise. The continuous water inlet can adopt a small-flow electromagnetic diaphragm pump, and the flow rate is suitable for small-scale continuous flow experiments; and the flow rate is adjustable, and it is easy to adjust the flow rate parameters for complex water inlet conditions.

[0016] 2. For this ozone pilot-scale experimental device, the ozone reaction column is equipped with a circulation system, which can strengthen the gas-liquid contact effect and can simulate the actual working conditions.

[0017] 3. This ozone pilot-scale experimental device is convenient for simulating the working conditions in the actual engineering application of ozone oxidation, and it belongs to a pilot-scale device with high equipment integration and integrity, simple operation, does not rely on other equipment such as a fume hood, can be made into a portable device, has no requirements for the experimental environmental conditions, and is convenient for carrying out ozone oxidation experiments. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural principle diagram of the present utility model.

[0019] In the figure: 11, ozone generator; 12, ozone inlet pipe; 13, ozone flowmeter; 14, ozone concentration detector; 15, ozone destruction device; 16, reaction column outlet pipe; 17, exhaust pipe;

[0020] 21, raw water pipe; 22, raw water pump; 23, raw water flowmeter; 24, raw water valve;

[0021] 31, chemical addition pipe; 32, chemical addition pump; 33, chemical addition flowmeter; 34, chemical addition valve;

[0022] 41, tee; 42, inlet pipe;

[0023] 51, ozone reaction column; 52, catalyst filter screen; 53, reaction column top plug;

[0024] 61, circulation pipe; 62, circulation pump; 63, circulation flowmeter; 64, circulation valve;

[0025] 71, drain pipe. Specific implementation mode

[0026] As Figure 1 shown, an ozone pilot experiment device includes an ozone generator 11 and an ozone reaction column 51. The ozone generator 11 is connected to the air inlet at the lower end of the ozone reaction column 51 through an ozone inlet pipe 12. An ozone flowmeter 13 is arranged on the pipeline of the ozone inlet pipe 12. An exhaust pipe 17 is arranged between the ozone generator 11 and the ozone flowmeter 13 on the pipeline of the ozone inlet pipe 12. An ozone concentration detector 14 and an ozone destruction device 15 are successively connected on its pipeline. The upper end of the ozone reaction column 51 is communicated with the air inlet of the ozone destruction device 15 through a reaction column outlet pipe 16; a water inlet is also arranged at the lower end of the ozone reaction column 51. The water inlet is connected to a tee 41 through an inlet pipe 42, and its two paths are respectively connected to a raw water inlet system and a chemical addition system; the ozone reaction column 51 is also provided with a circulation system and a drain pipe 71. The outlet of the circulation system and the outlet of the drain pipe 71 are both arranged at the upper part of the ozone reaction column 51, and the water return port of the circulation system is arranged at the lower end of the ozone reaction column 51.

[0027] In a preferred implementation mode, the raw water inlet system includes a raw water pipe 21 connected to the tee 41, and also includes a raw water pump 22, a raw water flowmeter 23, and a raw water valve 24 arranged successively along the pipeline from the water source to the tee 41.

[0028] The same as the above raw water inlet system, the chemical addition system can also adopt this form. Specifically, it includes a chemical addition pipe 31 connected to the tee 41, and also includes a chemical addition pump 32, a chemical addition flowmeter 33, and a chemical addition valve 34 arranged successively along the pipeline from the chemical addition storage tank to the tee 41.

[0029] Similarly, the circulation system can also adopt this form, specifically including a circulation pipe 61 connecting the water outlet and the water return port of the circulation system, and further including a circulation pump 62, a circulation flowmeter 63, and a circulation valve 64 sequentially arranged along the pipeline from the water outlet to the water return port.

[0030] The above raw water pump 22, chemical dosing pump 32, and circulation pump 62 can all adopt electromagnetic diaphragm pumps with adjustable flow rates.

[0031] To prevent liquid from flowing back into the air path, the upper end height of the ozone inlet pipe 12 is not lower than the upper end height of the liquid level inside the ozone reaction column 51. Specifically, when designing, considering the overall size of the equipment, it is advisable to refer to Figure 1 , and the ozone inlet pipe 12 is set in an inverted U shape, wound to the top height of the ozone reaction column, and then introduced into the ozone reaction column from the bottom.

[0032] In addition, the following structure can be more convenient for use and maintenance: a catalyst filter screen 52 is detachably arranged at the lower part inside the ozone reaction column 51, and a catalyst is placed thereon. The ozone inlet pipe 12, the water inlet pipe 42, and the water return pipeline of the circulation system are all connected to the lower part of the catalyst filter screen 52; the upper end of the ozone reaction column 51 is a detachable reaction column top plug 53, and the catalyst can be put in and taken out after it is opened.

[0033] The above is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

[0034] Those not described in detail in the present invention are all well-known technologies to those skilled in the art.

Claims

1. An ozone pilot experiment device, characterized in that: It includes an ozone generator (11) and an ozone reaction column (51). The ozone generator (11) is connected to the air inlet at the lower end of the ozone reaction column (51) through an ozone inlet pipe (12). An ozone flowmeter (13) is provided on the pipeline of the ozone inlet pipe (12). An exhaust pipe (17) is provided between the ozone generator (11) and the ozone flowmeter (13) on the pipeline of the ozone inlet pipe (12). An ozone concentration detector (14) and an ozone destruction device (15) are sequentially connected on its pipeline. The upper end of the ozone reaction column (51) communicates with the air inlet of the ozone destruction device (15) through a reaction column outlet pipe (16); The lower end of the ozone reaction column (51) is also provided with a water inlet, and the water inlet is connected to a tee (41) through a water inlet pipe (42), and its two paths are respectively connected to a raw water inlet system and a chemical dosing system; The ozone reaction column (51) is also provided with a circulation system and a drain pipe (71). The outlet of the circulation system and the outlet of the drain pipe (71) are both arranged at the upper part of the ozone reaction column (51), and the water return port of the circulation system is arranged at the lower end of the ozone reaction column (51).

2. The ozone pilot experiment device according to claim 1, characterized in that: The raw water inlet system includes a raw water pipe (21) connected to the tee (41), and also includes a raw water pump (22), a raw water flowmeter (23), and a raw water valve (24) sequentially arranged along the pipeline from the water source to the tee (41).

3. The ozone pilot experiment device according to claim 1, characterized in that: The chemical dosing system includes a chemical dosing pipe (31) connected to the tee (41), and also includes a chemical dosing pump (32), a chemical dosing flowmeter (33), and a chemical dosing valve (34) sequentially arranged along the pipeline from the chemical dosing storage tank to the tee (41).

4. The ozone pilot experiment device according to claim 1, characterized in that: The circulation system includes a circulation pipe (61) connecting the outlet and the water return port of the circulation system, and also includes a circulation pump (62), a circulation flowmeter (63), and a circulation valve (64) sequentially arranged along the pipeline from the outlet to the water return port.

5. The ozone pilot experiment device according to claim 1, characterized in that: The upper end height of the ozone inlet pipe (12) is not lower than the upper end height of the liquid level inside the ozone reaction column (51).

6. The ozone pilot experiment device according to claim 1, characterized in that: A catalyst filter screen (52) is detachably arranged at the lower part inside the ozone reaction column (51), and a catalyst is placed on it. The ozone inlet pipe (12), the water inlet pipe (42), and the water return pipeline of the circulation system are all communicated to the lower part of the catalyst filter screen (52); the upper end of the ozone reaction column (51) is a detachable reaction column top plug (53).

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