Dissolved oxygen control device for aerobic tank

Abstract

The utility model discloses a dissolved oxygen control device for an aerobic tank, which belongs to the technical field of sewage treatment and comprises aeration equipment. The operation mode of the aeration equipment driver is intermittent work; the input end of the aeration equipment is communicated with an air inlet pipe and a carbon source inlet pipe, a first valve is arranged on the carbon source inlet pipe, and the input end of the carbon source inlet pipe is connected with a carbon source supply mechanism. According to the utility model, aiming at sewage with lower pollution degree, through intermittent work of the aeration equipment driver, energy can be saved on the basis of meeting the control requirement of dissolved oxygen, and the problem of energy and cost waste is solved; carbon source mist can be introduced into the aerobic tank along with air, so that the effect of supplementing a carbon source is achieved, and the problem of insufficient carbon source is solved. Contact between a carbon source and aerobic microorganisms can be promoted, and the utilization rate of the carbon source is increased.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the sewage treatment technical field, concretely is a kind of aerobic tank dissolved oxygen control device. BACKGROUND

[0002] Aeration oxygenation technology refers to the process of forcibly transferring oxygen in air to liquid, and the purpose is to obtain sufficient dissolved oxygen. In addition, aeration also prevents the sinking of suspended bodies in the tank and enhances the contact between organic matter, microorganisms and dissolved oxygen in the tank. Thus, the oxidation and decomposition of organic matter in wastewater by microorganisms in the tank under sufficient dissolved oxygen conditions are ensured.

[0003] At present, in the patent with the authorization announcement No.CN 215559258 U, a kind of aerobic tank bottom all-around rotation control dissolved oxygen oxygen aeration device is disclosed, driving motor is used to drive driving shaft rotation, to make aeration fan blade rotate, simultaneously, air pump is used to extract air, from air inlet pipe into outer box body, from air inlet into air passage, from aeration hole one on driving shaft exhaust, and follow driving shaft rotation, simultaneously, airflow reaches the cavity in aeration fan blade, from aeration hole two exhaust and follow aeration fan blade rotation, such device structure is simple, convenient to use, can be rotated while carrying out aeration, improve the uniformity of aeration, increase work efficiency. However, when treating some sewage with less pollution, aeration related equipment continues to work, which can cause excessive dissolved oxygen, i.e. energy and cost waste caused by too high aeration amount (excessive dissolved oxygen). Moreover, for wastewater with low pollution, there may be a lack of carbon source in the aerobic tank. Carbon source is a key nutrient for the growth and metabolism of aerobic microorganisms, and they need carbon source to synthesize cell material and maintain life activities. Therefore, it is necessary to provide an aerobic tank dissolved oxygen control device that can realize intermittent aeration and add carbon source. UTILITY MODEL CONTENTS

[0004] The utility model technical scheme provides a solution significantly different from the prior art to solve the technical problem that the prior art solution is too single, mainly provides an aerobic tank dissolved oxygen control device to solve the cost waste problem caused by too high aeration amount and the problem of insufficient carbon source in the background art.

[0005] The utility model solves the above technical problems by adopting the following technical scheme:

[0006] An aerobic tank dissolved oxygen control device, comprising an aeration device, the operation mode of the aeration device driver is intermittent, the input end of the aeration device is communicated with an air inlet pipe and a carbon source inlet pipe, a first valve is arranged on the carbon source inlet pipe, and a carbon source supply mechanism is connected to the input end of the carbon source inlet pipe.

[0007] Further, the carbon source supply mechanism comprises a storage container for filling glucose water and an atomizer in communication with the storage container, and an output end of the atomizer is in communication with the carbon source inlet pipe.

[0008] Further, a one-way valve is arranged on the air inlet pipe.

[0009] Further, the storage container is arranged above the atomizer, and a bottom of the storage container is in communication with the atomizer.

[0010] Further, the carbon source supply mechanism is arranged at the water outlet side of the aerobic tank, one side of the atomizer is provided with a motor for driving the atomizer and the storage container to rotate in the vertical direction, and the input end of the storage container is provided with a second valve, and when the storage container is rotated to below the atomizer, the input end of the storage container is immersed in the aerobic tank.

[0011] Further, the atomizer is arranged inside the rotating shell, and the input end and the output end of the atomizer are respectively extended to the outside of the rotating shell through pipelines, and the storage container is fixedly connected with the rotating shell.

[0012] Further, a timer for controlling the single aeration time is arranged in the control circuit of the aeration device 1 driver.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] The present application is suitable for sewage with low pollution degree, and the operation mode of the aeration device driver is set as intermittent operation, intermittent aeration is realized, and the aeration time and the pause aeration time can be adjusted in the control system to adapt to the oxygen supply demand of sewage with different pollution degrees.

[0015] The carbon source supply mechanism is arranged, and the carbon source inlet pipe is in communication with the input end of the aeration device, and when applied, the carbon source mist can be introduced into the aerobic tank together with air in the aeration device, the effect of supplementing the carbon source is achieved, and the problem of insufficient carbon source is solved.

[0016] The present application will be explained and described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The utility model discloses a three-dimensional structure schematic diagram in embodiment two of the utility model.

[0018] Figure 2 The utility model discloses a front view in embodiment two of the utility model.

[0019] Figure 3 The utility model discloses a three-dimensional structure schematic diagram in embodiment three of the utility model.

[0020] The figure mark: 1, aeration equipment;2, air inlet pipe;21, check valve;3, carbon source inlet pipe;31, first valve;4, carbon source supply mechanism;41, storage container;411, second valve;42, atomizer;5, rotating shell;6, motor. DETAILED DESCRIPTION

[0021] In order to facilitate understanding the utility model, below will be with reference to relevant drawings more comprehensive description of the utility model, the drawings show several embodiments of the utility model, but the utility model can be realized through different forms, and is not limited to the embodiment described in the text, on the contrary, provide these embodiments are to make the content disclosed by the utility model more thorough and comprehensive.

[0022] Embodiment one: please refer to the attached Figure 1 and attached Figure 2 An aerobic tank dissolved oxygen control device, comprising:

[0023] Aeration equipment 1 is used for realizing aeration function, and air is passed into the aerobic tank;The operation mode of aeration equipment 1 driver is set to intermittent work (a timer for controlling single aeration time and rest time is arranged in the control circuit of aeration equipment 1 driver);The intermittent aeration time is 9h as a cycle, wherein aeration is started for 6h, and aeration is paused for 3h;

[0024] Air inlet pipe 2 is communicated with the input end of aeration equipment 1, and is used for conveying air;

[0025] Carbon source inlet pipe 3 is communicated with the input end of aeration equipment 1, and is used for sending the carbon source mist provided by carbon source supply mechanism 4 into aeration equipment 1;First valve 31 is arranged on carbon source inlet pipe 3, and the opening or closed state of the valve is used to realize the control of whether to add carbon source;

[0026] Carbon source supply mechanism 4 is arranged on the input end side of carbon source inlet pipe 3, and is used for providing carbon source.

[0027] In the embodiment, the carbon source supply mechanism 4 comprises a storage container 41 for storing glucose water and an atomizer 42 communicating with the storage container 41, and the output end of the atomizer 42 communicates with the carbon source inlet pipe 3. The storage container 41 is pre-stored with glucose water. When the carbon source needs to be added, the glucose water is introduced into the atomizer 42. The atomizer 42 works to convert the glucose water into fine mist droplets to form a mist, and the glucose mist is sent into the aeration device 1 through the carbon source inlet pipe 3, and finally into the aerobic tank through the aeration device 1. Glucose, as a simple carbohydrate, can be quickly utilized by microorganisms, promoting the growth and reproduction of microorganisms, thereby enhancing the treatment capacity of the biological treatment system.

[0028] Embodiment Two: The difference between this embodiment and Embodiment One is that:

[0029] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 , the air inlet pipe 2 is provided with a one-way valve 21, which only allows gas to enter the aeration device 1, but does not allow it to be output in the opposite direction to the air, which can effectively prevent the glucose mist from being discharged from the air inlet pipe 2.

[0030] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 , the storage container 41 is arranged above the atomizer 42, and the bottom of the storage container 41 communicates with the atomizer 42. This arrangement facilitates the use of gravity to introduce glucose water into the atomizer 42, making it more convenient to use.

[0031] The others are the same as Embodiment One.

[0032] Embodiment Three: The difference between this embodiment and Embodiment Two is that:

[0033] The aeration device 1 comprises an aeration disc arranged at the bottom of the aerobic tank; the carbon source supply mechanism 4 is arranged at the water outlet side of the aerobic tank; please refer to the accompanying drawings Figure 3The side of the atomizer 42, which is opposite to the aeration device 1, is provided with a motor 6 (a forward-reverse motor) for driving the atomizer 42 and the storage container 41 to rotate in the vertical direction, the input end of the storage container 41 is located at the side of the storage container 41, which is opposite to the atomizer 42, and is provided with a second valve 411. In use, the storage container 41 and the atomizer 42 are more likely to have residual glucose, the carbon source supply mechanism 4 is driven by the motor 6 to rotate 180°, so that the storage container 41 is rotated to below the atomizer 42, at this time, the input end of the storage container 41 is immersed in the aerobic tank, and the liquid level of the aerobic tank is above the middle of the height of the storage container 41, after the second valve 411 is opened, the cleaner water on the water outlet side of the aerobic tank will automatically enter the storage container 41, then the second valve 411 is closed, and then the carbon source supply mechanism 4 is driven by the motor 6 to rotate back to the original position, and then the atomizer 42 and the aeration device 1 are started, so that the water carrying the residual glucose enters the bottom of the aerobic tank. Repeatedly washing the storage container 41 and the atomizer 42 with the water outlet of the aerobic tank can effectively reduce the residues in the storage container 41 and the atomizer 42, and promote the complete application of the carbon source.

[0034] Please refer to the accompanying drawings Figure 3 The atomizer 42 is arranged in the rotating shell 5, so that the transmission connection with the motor 6 can be simplified; the input end and the output end of the atomizer 42 extend to the outside of the rotating shell 5 through pipelines respectively, and the storage container 41 is fixedly connected with the rotating shell 5. The aeration device 1 driver, the carbon source supply mechanism 4 and the motor 6 are all arranged on the floating body, and a gap is arranged on the floating body to allow the storage container 41 to enter the water surface.

[0035] The other parts are the same as those in Embodiment Two.

[0036] Embodiment Four: The difference between this embodiment and Embodiment Three is that:

[0037] The aeration device 1 driver and the motor 6 are both fixedly connected on the bank of the aerobic tank, and the carbon source supply mechanism 4 is suspended above the water surface to allow the storage container 41 to enter the water surface.

[0038] The other parts are the same as those in Embodiment Three.

[0039] The above describes the present application with reference to the accompanying drawings, obviously, the specific implementation of the present application is not limited to the above method, as long as the method concept and technical solution of the present application are adopted for non-essential improvement, or the concept and technical solution of the present application are directly applied to other occasions, which are all within the protection scope of the present application.

Claims

1. An apparatus for dissolved oxygen control in an aerobic tank comprising an aeration device (1); characterized in that: The operation mode of the aerator (1) driver is intermittent operation; the input end of the aerator (1) is communicated with an air inlet pipe (2) and a carbon source inlet pipe (3), a first valve (31) is arranged on the carbon source inlet pipe (3), and a carbon source supply mechanism (4) is connected to the input end of the carbon source inlet pipe (3).

2. The apparatus for controlling dissolved oxygen in an aerobic tank according to claim 1, wherein: The carbon source supply mechanism (4) comprises a storage container (41) for filling glucose water and an atomizer (42) communicated with the storage container (41), and the output end of the atomizer (42) is communicated with the carbon source inlet pipe (3).

3. The apparatus for controlling dissolved oxygen in an aerobic tank according to claim 1, wherein: A one-way valve (21) is arranged on the air inlet pipe (2).

4. The apparatus for controlling dissolved oxygen in an aerobic tank according to claim 2, wherein: The storage container (41) is arranged above the atomizer (42), and the bottom of the storage container (41) is communicated with the atomizer (42).

5. An apparatus for controlling dissolved oxygen in an aerobic tank according to claim 4, wherein: The carbon source supply mechanism (4) is arranged on the water outlet side of the aerobic tank, one side of the atomizer (42) is provided with a motor (6) for driving the atomizer (42) and the storage container (41) to rotate in the vertical direction, the input end of the storage container (41) is provided with a second valve (411), and when the storage container (41) is rotated to below the atomizer (42), the input end of the storage container (41) is immersed in the aerobic tank.

6. An apparatus for controlling dissolved oxygen in an aerobic tank according to claim 5, wherein: The atomizer (42) is arranged inside a rotating shell (5), the input end and the output end of the atomizer (42) are respectively extended to the outside of the rotating shell (5) through pipelines, and the storage container (41) is fixedly connected with the rotating shell (5).

7. The apparatus for controlling dissolved oxygen in an aerobic tank according to claim 1, wherein: A timer for controlling the single aeration time is arranged in the control circuit of the aerator (1) driver.

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