Ozone aeration system with backwashing function

Abstract

The utility model provides an ozone aeration system with a backwashing function. The ozone aeration system comprises an ozone aerator; a controller; the air outlet end of the ozone aeration pipe is communicated with the ozone aerator; the air flow meter is arranged on the ozone aeration pipe, is used for monitoring the air inlet flow of the ozone aeration pipe and is electrically connected with the controller; the pressure sensor is arranged on the ozone aeration pipe, is used for monitoring the air inlet pressure of the ozone aeration pipe and is electrically connected with the controller; the flushing device is communicated with the ozone aerator, is used for flushing the ozone aerator and is electrically connected with the controller; when the monitoring value of the air flow meter is smaller than the set flow value and the monitoring value of the pressure sensor is larger than the set pressure value, the controller controls the flushing device to be opened. The ozone aerator can be automatically flushed, the ozone aerator can be prevented from being blocked, and it is guaranteed that the ozone aerator can operate efficiently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, and particularly relates to an ozone aeration system with backwashing function. BACKGROUND

[0002] In wastewater treatment engineering, ozone oxidation treatment as one of the depth treatment processes is widely applied to the treatment of industrial wastewater. The process relies on the strong oxidation characteristics of ozone to effectively oxidize the soluble organic matter that is difficult to biodegrade in water, significantly reduces the colority and chemical oxygen demand (COD) of the effluent, and thus realizes the removal of pollutants.

[0003] However, in the ozone aeration process, the original impurities in the water, the growth of microorganisms or the chemical precipitation of calcium and magnesium ions in the wastewater and other substances often cause the ozone aerator to be blocked. Such blockage not only reduces the transmission efficiency of ozone and affects the wastewater treatment effect, but also may increase the operation cost of the system. Therefore, how to effectively solve the problem of blockage of the ozone aerator of the ozone aeration system and maintain its efficient operation has become a key problem to be solved in the wastewater depth treatment process. CONTENT OF THE INVENTION

[0004] The embodiment of the present application provides an ozone aeration system with backwashing function to solve the problems in the related art, and the technical scheme is as follows:

[0005] The embodiment of the present application provides an ozone aeration system with backwashing function, which comprises:

[0006] an ozone aerator;

[0007] a controller;

[0008] an ozone aeration pipe, an air inlet end of the ozone aeration pipe being used for being communicated with an ozone supply device under the control of the controller, and an air outlet end of the ozone aeration pipe being communicated with the ozone aerator;

[0009] an air flow meter, the air flow meter being arranged on the ozone aeration pipe, the air flow meter being used for monitoring the air inlet flow of the ozone aeration pipe, and the air flow meter being electrically connected with the controller;

[0010] a pressure sensor, the pressure sensor being arranged on the ozone aeration pipe, the pressure sensor being used for monitoring the air inlet pressure of the ozone aeration pipe, and the pressure sensor being electrically connected with the controller; and

[0011] a flushing device, a liquid outlet end of the flushing device being communicated with the ozone aerator, the flushing device being used for flushing the ozone aerator, and the flushing device being electrically connected with the controller;

[0012] When the monitoring value of the air flow meter is less than the set flow value and the monitoring value of the pressure sensor is greater than the set pressure value, the controller controls the flushing device to open according to the feedback information of the air flow meter and the pressure sensor, so as to flush the ozone aerator.

[0013] In an embodiment, the flushing device comprises:

[0014] a flushing pipe, an inlet end of the flushing pipe being used for communicating with the liquid supply device, and an outlet end of the flushing pipe being communicated with the ozone aerator;

[0015] a flushing control valve, the flushing control valve being arranged on the flushing pipe, the flushing control valve being used for controlling the opening and closing of the outlet end of the flushing pipe, and the flushing control valve being electrically connected with the controller, and when the monitoring value of the air flow meter is less than the set flow value and the monitoring value of the pressure sensor is greater than the set pressure value, the flushing control valve is opened.

[0016] In an embodiment, the ozone aerator system with backwashing function further comprises:

[0017] a communication pipe, an inlet end of the communication pipe being communicated with the outlet end of the ozone aerator pipe and the outlet end of the flushing pipe, and an outlet end of the communication pipe being communicated with the ozone aerator.

[0018] In an embodiment, the ozone aerator system with backwashing function further comprises:

[0019] an air inlet control valve, the air inlet control valve being arranged on the ozone aerator pipe, and the air inlet control valve being used for controlling the opening and closing of the ozone aerator pipe;

[0020] the controller is electrically connected with the air inlet control valve, and when the monitoring value of the air flow meter is less than the set flow value and the monitoring value of the pressure sensor is greater than the set pressure value, the controller controls the air inlet control valve to be closed.

[0021] In an embodiment, the flushing device further comprises:

[0022] a flushing agent supply tank;

[0023] a water supply tank;

[0024] a mixer, an inlet end of the mixer being communicated with an outlet end of the flushing agent supply tank and an outlet end of the water supply tank, and an outlet end of the mixer being communicated with an inlet end of the flushing pipe, and the mixer being used for mixing the flushing agent output by the flushing agent supply tank and the water output by the water supply tank.

[0025] In an embodiment, the flushing device further comprises:

[0026] a water pump, a liquid inlet end of the water pump being communicated with a liquid outlet end of the water supply tank, a liquid outlet end of the water pump being communicated with a liquid inlet end of the mixer, the water pump being used for conveying water output by the water supply tank to the mixer, the water pump being electrically connected with the controller, and the water pump being controlled to operate by the controller.

[0027] In an embodiment, the flushing device further comprises:

[0028] a dosing pump, a liquid inlet end of the dosing pump being communicated with a liquid outlet end of the flushing agent supply tank, a liquid outlet end of the dosing pump being communicated with a liquid inlet end of the mixer, the dosing pump being electrically connected with the controller, and the dosing pump being controlled to operate by the controller.

[0029] In an embodiment, the flushing device further comprises:

[0030] a liquid level sensor, the liquid level sensor being arranged on the flushing agent supply tank, and the liquid level sensor being used for monitoring a liquid level of the flushing agent supply tank.

[0031] the controller being electrically connected with the liquid level sensor, the controller being used for controlling the dosing pump and the water pump to be closed according to low liquid level information of the liquid level sensor, and the controller being used for controlling the dosing pump and the water pump to be opened according to high liquid level information of the liquid level sensor.

[0032] In an embodiment, the flushing agent supply tank is internally provided with a stirrer, the stirrer being used for stirring flushing agent in the flushing agent supply tank, the stirrer being electrically connected with the controller, and the stirrer being controlled to operate by the controller.

[0033] In an embodiment, the pressure sensor is a pressure transmitter.

[0034] The above technical solution has at least the following advantages or beneficial effects:

[0035] The ozone aeration system of the utility model, through setting up air flow meter and pressure sensor on ozone aeration pipe and being provided with flushing device, using air flow meter and pressure sensor to monitor the flow and pressure of ozone aeration pipe respectively, in the case that the monitoring value of air flow meter is less than the set flow value and the monitoring value of pressure sensor is greater than the set pressure value, namely in the case that ozone aerator is blocked, the controller controls the flushing device to open according to the feedback information of air flow meter and pressure sensor, so that the liquid output by the flushing device can be transported to the ozone aerator, thereby realizing automatic flushing of the ozone aerator until the flow and pressure in the ozone aeration pipe monitored by air flow meter and pressure sensor return to normal values, which can prevent the ozone aerator from being blocked and ensure that the ozone aerator can operate efficiently.

[0036] The above summary is intended to illustrate only and is not intended to limit the application in any way. Further aspects, embodiments and features of the application will be apparent from a review of the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0037] In the drawings, like reference numerals will be used to designate like or similar elements among the several views. These drawings are not necessarily to scale. It should be understood that these drawings are merely illustrative of certain embodiments of the application and should not be considered limiting of its scope.

[0038] Figure 1 It is a structural schematic view of the ozone aeration system of the utility model.

[0039] REFERENCE NUMERALS

[0040] 1, ozone aerator; 2, ozone aeration pipe; 3, air flow meter; 4, pressure sensor; 5, flushing device; 51, flushing pipe; 52, flushing control valve; 53, flushing reagent supply box; 54, water supply tank; 55, mixer; 56, water pump; 57, dosing pump; 58, liquid level sensor; 59, agitator; 6, communication pipe; 7, air inlet control valve. DETAILED DESCRIPTION

[0041] In the following, only certain example embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the application. Therefore, the drawings and the description are considered to be exemplary in nature and not limiting.

[0042] REFERENCE Figure 1 , shows a kind of ozone aeration system with backwashing function of a preferred embodiment of the utility model, comprising:

[0043] ozone aerator 1;

[0044] controller (not shown in the figure);

[0045] ozone aerator 2, the gas inlet end of the ozone aerator 2 is used for communicating with the ozone supply device (not shown in the figure) under the control of the controller, and the gas outlet end of the ozone aerator 2 communicates with the ozone aerator 1;

[0046] air flow meter 3, the air flow meter 3 is arranged on the ozone aerator 2, the air flow meter 3 is used for monitoring the gas flow of the ozone aerator 2, and the air flow meter 3 is electrically connected with the controller;

[0047] pressure sensor 4, the pressure sensor 4 is arranged on the ozone aerator 2, the pressure sensor 4 is used for monitoring the gas pressure of the ozone aerator 2, and the pressure sensor 4 is electrically connected with the controller; and

[0048] flushing device 5, the liquid outlet end of the flushing device 5 communicates with the ozone aerator 1, the flushing device 5 is used for flushing the ozone aerator 1, and the flushing device 5 is electrically connected with the controller;

[0049] In the case that the monitoring value of the air flow meter 3 is less than the set flow value and the monitoring value of the pressure sensor 4 is greater than the set pressure value, the controller controls the flushing device 5 to open according to the feedback information of the air flow meter 3 and the pressure sensor 4 to flush the ozone aerator 1.

[0050] The ozone aerator system of the utility model, through setting air flow meter 3 and pressure sensor 4 on ozone aerator 2 and being provided with flushing device 5, using air flow meter 3 and pressure sensor 4 to monitor the flow and pressure of ozone aerator 2 respectively, in the case that the monitoring value of air flow meter 3 is less than the set flow value and the monitoring value of pressure sensor 4 is greater than the set pressure value, namely in the case that ozone aerator 1 is blocked, the controller controls flushing device 5 to open according to the feedback information of air flow meter 3 and pressure sensor 4, makes the liquid output by flushing device 5 to be transported to ozone aerator 1, thereby realizing automatic flushing of ozone aerator 1, until the flow and pressure in ozone aerator 2 monitored by air flow meter 3 and pressure sensor 4 return to normal value, can prevent ozone aerator 1 from being blocked, and guarantee that ozone aerator 1 can operate efficiently.

[0051] Referring to Figure 1 In an embodiment, the flushing device 5 comprises:

[0052] flushing pipe 51, the liquid inlet end of the flushing pipe 51 is used for communicating with the liquid supply device, and the liquid outlet end of the flushing pipe 51 communicates with the ozone aerator 1;

[0053] The flushing control valve 52 is arranged on the flushing pipe 51, and is used to control the opening and closing of the liquid outlet end of the flushing pipe 51. The flushing control valve 52 is electrically connected to the controller. When the monitoring value of the air flow meter 3 is less than the set flow value and the monitoring value of the pressure sensor 4 is greater than the set pressure value, the flushing control valve 52 is opened. In this way, the controller controls the flushing control valve 52 to be opened, so that the liquid output by the liquid supply device can be delivered to the ozone aerator 1 through the flushing pipe 51, thereby realizing the flushing of the ozone aerator 1. The flushing device 5 has simple structure and low cost, and can reduce the cost of the ozone aeration system.

[0054] Referring to Figure 1 In an embodiment, the ozone aeration system with backwashing function further comprises:

[0055] The communication pipe 6 is connected to the gas outlet end of the ozone aeration pipe 2 and the liquid outlet end of the flushing pipe 51 at the inlet end, and is connected to the ozone aerator 1 at the outlet end. In other words, the ozone aeration pipe 2, the flushing pipe 51 and the ozone aerator 1 are connected through the communication pipe 6, so that the ozone output by the ozone aeration pipe 2 can be delivered to the ozone aerator 1 through the communication pipe 6, and the liquid output by the flushing pipe 51 can be delivered to the ozone aerator 1 through the communication pipe 6. In this way, the communication pipe 6 can be flushed at the same time when the ozone aerator 1 is flushed, so that the ozone delivery is smoother, and the pipeline structure is simplified, thereby further reducing the cost of the ozone aeration system.

[0056] Referring to Figure 1 In an embodiment, the ozone aeration system with backwashing function further comprises:

[0057] The air inlet control valve 7 is arranged on the ozone aeration pipe 2, and is used to control the opening and closing of the ozone aeration pipe 2.

[0058] The controller is electrically connected to the air inlet control valve 7. When the monitoring value of the air flow meter 3 is less than the set flow value and the monitoring value of the pressure sensor 4 is greater than the set pressure value, the controller controls the air inlet control valve 7 to be closed. In this way, when the ozone aerator 1 needs to be flushed, the controller controls the air inlet control valve 7 to be closed, so as to limit the ozone output and avoid waste of ozone, and also avoid the ozone from hindering the output of the liquid. After the flushing of the ozone aerator 1 is completed, the controller controls the flushing control valve 52 to be closed and the air inlet control valve 7 to be opened, so that the ozone output by the ozone aeration pipe 2 can be delivered to the ozone aerator 1.

[0059] Referring to Figure 1 In an embodiment, the flushing device 5 further comprises:

[0060] The flushing agent supply box 53.

[0061] water supply tank 54;

[0062] mixer 55, the inlet of the mixer 55 is communicated with the outlet of the flushing agent supply tank 53 and the outlet of the water supply tank 54, the outlet of the mixer 55 is communicated with the inlet of the flushing pipe 51, the mixer 55 is used for mixing the flushing agent (citric acid) output by the flushing agent supply tank 53 and the water output by the water supply tank 54, ensuring that the flushing agent and the water are mixed uniformly, and at the same time, the mixer 55 is used for conveying the mixed liquid of the flushing agent and the water to the ozone aerator 1, so as to dissolve and flush the deposits on the surface of the ozone aerator 1, thereby realizing efficient flushing of the ozone aerator 1.

[0063] Referring to Figure 1 In an embodiment, the flushing device 5 further comprises:

[0064] water pump 56, the inlet of the water pump 56 is communicated with the outlet of the water supply tank 54, the outlet of the water pump 56 is communicated with the inlet of the mixer 55, the water pump 56 is used for conveying the water output by the water supply tank 54 to the mixer 55, the water pump 56 is electrically connected with the controller, and the water pump 56 is controlled to operate by the controller, so that in the case of needing to flush the ozone aerator 1, the controller controls the water pump 56 to be opened, the water pump 56 is used for conveying the water in the water supply tank 54 to the mixer 55, efficient conveying of the water is realized, and at the same time, the water pump 56 can be used for pressurizing the water, the impact force of the water on the ozone aerator 1 is improved, and efficient cleaning of the ozone aerator 1 is realized.

[0065] Referring to Figure 1 In an embodiment, the flushing device 5 further comprises:

[0066] dosing pump 57, the inlet of the dosing pump 57 is communicated with the outlet of the flushing agent supply tank 53, the outlet of the dosing pump 57 is communicated with the inlet of the mixer 55, the dosing pump 57 is electrically connected with the controller, and the dosing pump 57 is controlled to operate by the controller, so that in the case of needing to flush the ozone aerator 1, the controller controls the dosing pump 57 to be opened, the dosing pump 57 is used for conveying the water in the flushing agent supply tank 53 to the mixer 55, efficient conveying of the water is realized, and at the same time, the water pump 56 can be used for pressurizing the water, the impact force of the water on the ozone aerator 1 is improved, and efficient cleaning of the ozone aerator 1 is realized.

[0067] Referring to Figure 1 In an embodiment, the flushing device 5 further comprises:

[0068] liquid level sensor 58, the liquid level sensor 58 is arranged on the flushing agent supply tank 53, and the liquid level sensor 58 is used for monitoring the liquid level of the flushing agent supply tank 53;

[0069] The controller is electrically connected with the liquid level sensor 58, and is configured to control the closing of the dosing pump 57 and the water pump 56 according to the low liquid level information of the liquid level sensor 58, and is configured to control the opening of the dosing pump 57 and the water pump 56 according to the high liquid level information of the liquid level sensor 58. In this way, the dosing pump 57 and the water pump 56 can be started only when the amount of flushing medicament in the flushing medicament supply tank 53 is sufficient, so as to realize the flushing of the ozone aerator 1; and the dosing pump 57 and the water pump 56 can be opened only after the flushing medicament supply tank 53 is supplied with flushing medicament when the amount of flushing medicament in the flushing medicament supply tank 53 is insufficient, so as to realize the high opening and low closing.

[0070] It can be understood that the high liquid level information can be any value higher than the low liquid level information.

[0071] Referring to Figure 1 In an embodiment, the flushing medicament supply tank 53 is provided with a stirrer 59, the stirrer 59 is configured to stir the flushing medicament in the flushing medicament supply tank 53, the stirrer 59 is electrically connected with the controller, and the stirrer 59 is controlled to operate by the controller, so as to realize the automatic stirring of the flushing medicament in the flushing medicament supply tank 53, and prevent the flushing medicament from depositing.

[0072] In an embodiment, the pressure sensor 4 is a pressure transmitter, which can provide high-precision measurement results, and can improve the pressure monitoring accuracy; at the same time, the pressure transmitter has high performance, high reliability and stability, and can work stably in various environments without special maintenance and maintenance, and has low use cost.

[0073] In summary, the ozone aeration system can realize the real-time monitoring of the air flow and the air pressure by installing the air flow meter 3 and the pressure sensor 4 on the ozone aeration pipe 2, that is, the system can monitor whether the ozone aerator 1 is blocked, and can realize the automatic cleaning of the ozone aerator 1 once the ozone aerator 1 is blocked. In addition, the ozone aeration system adopts a modular design, which makes the installation and maintenance more convenient, and can be flexibly configured according to different scales of wastewater treatment facilities, thereby improving the applicability and reliability of the system.

[0074] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0075] Furthermore, the terms "first", "second", etc. are used only for the purpose of description and do not imply or imply relative importance or a quantity of the technical features indicated. Thus, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0076] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or replacements within the technical scope disclosed by the present application, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An ozone aeration system with backwash function, characterized in that, The ozone aeration system comprises: an ozone aeration device; a controller; an ozone aeration pipe, an air inlet end of which is connected to an ozone supply device under the control of the controller, and an air outlet end of which is connected to the ozone aeration device; an air flow meter, which is arranged on the ozone aeration pipe and used for monitoring the air flow of the ozone aeration pipe, and which is electrically connected to the controller; a pressure sensor, which is arranged on the ozone aeration pipe and used for monitoring the air pressure of the ozone aeration pipe, and which is electrically connected to the controller; and a flushing device, a liquid outlet end of which is connected to the ozone aeration device, and which is used for flushing the ozone aeration device, and which is electrically connected to the controller. When the monitoring value of the air flow meter is less than a set flow value and the monitoring value of the pressure sensor is greater than a set pressure value, the controller controls the flushing device to open according to the feedback information of the air flow meter and the pressure sensor, so as to flush the ozone aeration device. The flushing device comprises:

2. The ozone aeration system with backwash function according to claim 1, characterized in that, a flushing pipe, a liquid inlet end of which is connected to a liquid supply device, and a liquid outlet end of which is connected to the ozone aeration device; a flushing control valve, which is arranged on the flushing pipe and used for controlling the opening and closing of the liquid outlet end of the flushing pipe, and which is electrically connected to the controller, and which is opened when the monitoring value of the air flow meter is less than the set flow value and the monitoring value of the pressure sensor is greater than the set pressure value. The ozone aeration system with the backwashing function further comprises:

3. The ozone aeration system with backwash function according to claim 2, characterized in that, a connecting pipe, an inlet end of which is connected to the air outlet end of the ozone aeration pipe and the liquid outlet end of the flushing pipe, and an outlet end of which is connected to the ozone aeration device. The ozone aeration system with the backwashing function further comprises:

4. The ozone aeration system with backwash function according to claim 3, characterized in that, an air inlet control valve, which is arranged on the ozone aeration pipe and used for controlling the opening and closing of the ozone aeration pipe, and which is electrically connected to the controller, and which is closed when the monitoring value of the air flow meter is less than the set flow value and the monitoring value of the pressure sensor is greater than the set pressure value. The flushing device further comprises: a flushing agent supply tank; 5. The ozone aeration system with backwash function according to claim 2, characterized in that, a water supply tank; a mixer, a liquid inlet end of which is connected to the liquid outlet end of the flushing agent supply tank and the liquid outlet end of the water supply tank, and a liquid outlet end of which is connected to the liquid inlet end of the flushing pipe, and which is used for mixing the flushing agent output by the flushing agent supply tank and the water output by the water supply tank. The flushing device further comprises: a water pump, a liquid inlet end of which is connected to the liquid outlet end of the water supply tank, and a liquid outlet end of which is connected to the liquid inlet end of the mixer, and which is used for conveying the water output by the water supply tank to the mixer, and which is electrically connected to the controller and controlled to operate by the controller.

6. The ozone aeration system with backwash function according to claim 5, characterized in that, The flushing device further comprises: ​ 7. The ozone aeration system with backwash function according to claim 6, characterized in that, ​ A dosing pump, a liquid inlet end of the dosing pump being communicated with a liquid outlet end of the flushing medicament supply tank, a liquid outlet end of the dosing pump being communicated with a liquid inlet end of the mixer, the dosing pump being electrically connected with the controller, the dosing pump being controlled to operate by the controller.

8. The ozone aeration system with backwash function according to claim 7, characterized in that, The flushing device further comprises: a liquid level sensor, the liquid level sensor being arranged on the flushing medicament supply tank, the liquid level sensor being used to monitor a liquid level of the flushing medicament supply tank; the controller being electrically connected with the liquid level sensor, the controller being used to control the dosing pump and the water pump to be closed according to low liquid level information of the liquid level sensor, the controller being used to control the dosing pump and the water pump to be opened according to high liquid level information of the liquid level sensor.

9. The ozone aeration system with backwash function according to claim 8, characterized in that, The flushing medicament supply tank is internally provided with a stirrer, the stirrer being used to stir the flushing medicament in the flushing medicament supply tank, the stirrer being electrically connected with the controller, the stirrer being controlled to operate by the controller.

10. The ozone aeration system with backwash function according to claim 1, characterized in that, The pressure sensor is a pressure transmitter.

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