KR101251899B1 - Aerator - Google Patents

Abstract

PURPOSE: An aerator is provided to externally drain water body and condensed water back-flowing into an air feeding pipe and an air diffusing pipe, and prevent the narrowness of the air feeding pipe and the blockage of the air diffusing pipe by washing solid matters, thereby omitting an inconvenient work for disassembling the air diffusing pipe in order to artificially ventilate an air outlet, and maintaining the high oxygen transfer rate of the air diffusing pipe. CONSTITUTION: An aerator includes a blower(10), an air diffusing pipe(30), an air feeding pipe(20), a water storage part(70), a discharging pipe(40), and a pump. The blower generates compressed air. The air diffusing pipe diffuses micro-bubbles into water through an air outlet. The air feeding pipe feeds the compressed air to the air diffusing pipe. The water storage part stores water bodies such as reaction liquid and condensed water back-flowing into the air feeding pipe. The top of the discharging pipe communicates outside, and the bottom of the discharging pipe communicates with the water storing part. The pump pumps the water bodies. The inlet of the pump communicates with the water storing part through the discharging pipe. The pump drains the water bodies which back-flow and are collected in the water storage part in case of non-aeration. [Reference numerals] (AA) Air; (BB) Washing water;

Description

Aeration Device {AERATOR}

The present invention relates to a device for supplying oxygen to the reaction tank of a sewage treatment plant and to water, such as lakes and rivers and farms, in order to cultivate aerobic microorganisms, increase the self-cleaning ability of the water system and grow fish and shellfish at high density.

The conventional aeration device composed of a blower, a blower pipe, and a diffuser formed with a fine air outlet has superior aeration power efficiency and is widely used for various purposes than an underwater blower and other mechanical diffusers. When abandoning the compressed air is supplied, the compressed air of a pressure higher than the external water pressure is filled in the air supply pipe and the diffuser so that the water body does not flow back into the air diffuser and the air supply pipe.

However, in the conventional aeration device, the aeration device, when the compressed air supply is stopped, during the aeration of the aeration, the reaction liquid and the like backflow from the outside through the air outlet of the acid pipe by the external water pressure flows back to the bottom of the air supply pipe Side effects such as the available cross-sectional area of the flow path through which compressed air passes are reduced and the aeration efficiency is lowered.

In addition, when the reaction solution containing the microorganism, pin floc, and nito flowed into the backflow is not removed, the microorganisms and fine solids contained in the water bodies accumulate in the diffuser and the air inlet pipe, and solidify into coarse solids. The flow path is reduced and the air vent of the diffuser is blocked.

In this way, if the available cross-sectional area of the air supply pipe is reduced or the air outlet of the diffuser is blocked, the aeration power efficiency and oxygen transfer amount are significantly reduced, so the reactor must be emptied and maintained. Maintenance of the abandonment system requires manpower and cost, and the use of the unit is impossible during maintenance, and this problem may be repeated periodically.

In addition, there is almost no solids in the condensate generated by the condensate generated in the diffuser and the inlet pipe where water vapor contained in the compressed air is immersed in a relatively low temperature reaction solution, but when it is accumulated in the bottom of the inlet pipe, the available cross section of the inlet flow path is reduced. Therefore, rapid drainage is required.

In addition, the intermittent aeration method that stops the air supply and repeats the aeration agitation has the advantage of excellent ability to remove nutrients and cope with load fluctuation, but due to the increase of backflow inflow due to the repeated aeration of aeration, The aeration device is avoided, but mechanical aeration device, such as a low-efficiency underwater aeration device is used as the main intermittent aeration device.

Therefore, it is possible to drain the water such as the reaction liquid and condensate that flows back into the inside of the acid pipe and the air supply pipe so that it can be used as an intermittent aeration device in order to use the intermittent aeration device. And improvement is needed to suppress the backflow of the reaction liquid.

The present invention has been made in view of the above problems, the function of preventing the backflow of the reaction liquid into the diffuser and the air inlet pipe and drain the condensate generated in the backflow inlet reaction liquid and the air supply pipe to the outside It is provided to prevent the reduction of the flow path of the air supply pipe and clogging of the air outlet, and to provide an aeration device with excellent aeration efficiency and intermittent aeration.

The aeration device according to the present invention for achieving the above object, a blower for generating compressed air, an air supply pipe for conveying the compressed air generated in the blower, an air diffuser for dispersing microbubbles in the water through the air outlet port, air supply pipe The reservoir may be provided with a reservoir configured to collect and store water generated by flowing back into or condensed, and an upper end thereof may communicate with air or water, and a lower end thereof may include an outlet tube installed to communicate with the reservoir part.

Looking at the action, the water flowing into the backflow during the aeration is collected in the reservoir, and when the aeration is started, the water collected in the reservoir is returned by the pressure of the compressed air compressed in the blower and condensate, etc. The water body can be drained to the outside of the air supply pipe through the outflow pipe to prevent the air supply pipe from shrinking and clogging the diffuser.

In addition, when the upper end of the outlet pipe is disposed in the water and the one-way flow path such as a check valve (Check Valve) is installed in the outflow pipe, the one-way flow path is opened by the pressure of the compressed air when the compressed air is supplied to the The water body and compressed air collected in the reservoir through the outlet pipe and the one-way flow path may flow into the reaction liquid, and when the aeration of the compressed air is stopped, the one-way flow path is closed by external water pressure. Influx of countercurrent through the reaction solution can be blocked.

In addition, if the diffuser pipe is installed in the outflow pipe connected to the water, when the aeration is supplied with compressed air, the water collected in the reservoir through the air outlet of the outlet pipe and the diffuser by the pressure of the compressed air is drained into the water It can be a microbubble is ejected, so the acid function can also be parallel.

In addition, the aeration device according to the present invention, the inlet and the outlet of the pump capable of pumping the water can be installed to communicate with each other and can drain the water collected in the reservoir by the pumping function of the pump to the outside. The pump may use a mechanical pump including a driving unit such as a centrifugal pump having a driving unit, a vacuum pump, or a fluid pump such as an ejector using fluid energy as a power source.

In addition, the aeration device according to the present invention, by connecting the washing water supply pipe to the air supply pipe and injecting the washing water through the washing water supply pipe can wash the inside of the air supply pipe and the diffuser. The washing water may be used as a defoaming water introduced for removing bubbles generated in the surface of the reaction tank, as well as water and ground water. Thus, the washing using the washing water is effective to remove the solids introduced through the reaction solution flowed back.

In addition, the aeration device according to the present invention, the upper end is in communication with the atmosphere and the lower end may be made of an air supplement pipe installed to communicate with the air supply pipe and a one-way flow path installed on the top of the air supplement pipe. As a result, when the supply of compressed air is stopped and the pressure in the air supply pipe is lowered, the one-way flow path is opened, and the air in the air is sucked and replenished into the air supply pipe through the air supplement pipe, and the reaction liquid flows back into the air supply pipe. This is prevented, and when the supply of the compressed air is resumed, the one-way flow path can be closed to prevent the leakage of the compressed air.

Drainage of water bodies and condensate that flowed back into the air supply pipe and diffuser to the outside, and washing solids prevents constriction of the air supply pipe and blockage of the diffuser so that the exhaust pipe is dismantled and artificially ventilates the air outlet. The operation can be omitted, and the advantages of the diffuser with high oxygen transfer rate can be maintained.

In addition, in combination with the stirrer, the aeration device composed of the diffuser can be applied to the intermittent aeration process in which the aeration and the aeration agitation is repeated, thereby replacing the underwater aeration equipment that must be operated at the time of aeration and aeration. It can provide high oxygen transfer efficiency and energy saving effect.

1 is a side cross-sectional view for explaining the aeration device according to a first embodiment of the present invention.
Figure 2 is a side cross-sectional view for explaining the aeration device according to a second embodiment of the present invention.
Figure 3 is a side cross-sectional view for explaining the aeration device according to a third embodiment of the present invention.
Figure 4 is a side cross-sectional view for explaining the aeration device according to a fourth embodiment of the present invention.
5 is a side cross-sectional view for explaining the aeration device according to a fifth embodiment of the present invention.
6 is a side cross-sectional view illustrating the aeration device according to the sixth embodiment of the present invention.
7 is a side cross-sectional view illustrating the aeration device according to the seventh embodiment of the present invention.
8 is a side cross-sectional view illustrating the aeration device according to the eighth embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail abandonment apparatus according to an embodiment of the present invention.

1 is a side cross-sectional view for explaining the aeration device according to a first embodiment of the present invention.

As shown in Figure 1, the aeration device according to an embodiment of the present invention, the blower 10 for generating compressed air, the diffuser 30 for dispersing microbubbles in the water through the air outlet, in the blower An air supply pipe 20 for transferring the generated compressed air and supplying it to the diffuser, a reservoir 71 for collecting and storing water such as a reaction liquid and condensate flowed back into the inside of the air supply pipe, and an upper reaction tank 300. It may be made to include an outlet pipe 40 is in communication with the outside of the lower end is installed in communication with the reservoir.

The reservoir 71 shown in Figure 1 is to use the lower side of the air supply pipe is installed horizontally in the vicinity of the bottom of the reaction tank 300, without installing a separate reservoir space. The tube end of the outlet pipe was extended to the lower side inside the horizontally installed blower pipe so that the water body could be drained to the outside through the outlet pipe by the pressure of the aeration compressed air supplied from the blower.

As shown in FIG. 1, the air supply pipe may be arranged horizontally, but the air supply pipe itself may be installed at an inclined side toward the outlet pipe so that the water body may collect in parallel with the function of the reservoir and the water body may be gathered to the place where the outlet pipe is installed. to be.

 In the aeration device shown in FIG. 1, when compressed air is supplied by a blower, the water collected in the reservoir is drained to the outside of the air supply pipe through the outlet pipe by the pressure of the compressed air, and then transferred to the outside of the reaction tank 300. Or circulated from the top of the reactor to the reactor.

In addition, the outlet pipe is provided with a flow path adjusting means 41, such as a valve can be opened and closed when necessary.

The flow regulating means is composed of an automatic valve and the automatic valve opens and closes according to a set period in conjunction with a timer, or in conjunction with a pressure sensor installed inside the air supply pipe, opening and closing in accordance with a set pressure range, the water body is moved to the outside. Can be drained.

In addition, the flow regulating means is composed of a pressure valve (Automatic Pressure Valve), due to the reduction in the available flow path of the air supply pipe and clogged diffuser pipe, the pressure inside the air supply pipe rises and exceeds the predetermined pressure, the valve is opened to the water body It can be drained to the outside.

In addition, the aeration device according to the present invention may further include a washing water supply pipe (80) installed to communicate with the air supply pipe, injecting the washing water through the washing water supply pipe to wash the inside of the air supply pipe and the diffuser pipe can do.

In addition, almost all wastewater treatment facilities are equipped with a defoaming water supply facility up to the upper part of the reactor to deflate foam generated from the water surface of the reactor, so using the parcel water as the washing water is unnecessary and economical. .

In addition, the aeration device according to the present invention, one end is in communication with the air and the other end is provided with an air supplement pipe 50 so as to communicate with the air supply pipe, the air supplement pipe is provided with a flow path adjusting means, but check valve (Check Valve) It can be configured as a one-way flow path 51, such as.

When supply of compressed air is stopped and negative pressure is formed inside the air supply pipe, the one-way flow path is opened, and air in the air is sucked and replenished into the air supply pipe through the air supplement pipe, and the reaction liquid is introduced into the diffuser pipe and the air supply pipe. Backflow inflow can be suppressed, and when the aeration in which compressed air is supplied, one-way flow path is closed, so leakage of compressed air can be prevented.

Figure 2 is a side cross-sectional view for explaining the aeration device according to a second embodiment of the present invention.

The aeration device according to the second embodiment of the present invention, the blower 10 for generating compressed air, the diffuser (30) for dispersing the fine bubbles in the water through the air outlet, the compressed air generated by the blower The air supply pipe 20 to be supplied to the engine, the water storage unit 72 collects and stores water such as the reaction liquid and condensate flowed back into the air supply pipe, the upper end is in communication with the interior of the reaction tank 300 and the bottom is the water storage part It may include an outlet pipe 40 is installed so as to communicate with, and the outlet pipe side one-way flow path 42 installed in the outlet pipe.

The reservoir 72 shown in FIG. 2 is a space configured to allow the water bodies introduced to one side of the air supply pipe to be collected and stored by the pressure of the compressed air that is injected by inserting the outlet pipe 40 into the water reservoir. The water trapped in the reservoir was allowed to flow into the reaction vessel (300). Since the reservoir 72 of this embodiment is configured with a separate reservoir space, the air can be smoothly flown than the embodiment of FIG. 1 which simply uses the lower side of the pump pipe as a storage space.

In the aeration device configured as described above, when compressed air is supplied, the water pipe and the compressed air collected in the reservoir through the one-way flow path of the outlet pipe and the outflow pipe side are opened by the pressure of the compressed air. And flowed out into the reaction liquid in the), and when supply of compressed air is stopped, the one-way flow path of the outlet pipe is closed to prevent inflow of the reaction liquid through the outlet pipe.

Figure 3 is a side cross-sectional view for explaining the aeration device according to a third embodiment of the present invention.

The aeration device according to the third embodiment of the present invention, the blower 10 for generating compressed air, the diffuser 30 for dispersing microbubbles in the water through the air outlet, the compressed air generated by the blower An air supply pipe 20 for supplying the engine, a water storage part 73 for collecting and storing water bodies such as reaction liquid and condensate introduced into the air supply pipe, and an upper end of which is connected to the diffuser so that the lower end is in communication with the reservoir. The pipe 40, and the top of the outlet pipe may include an air diffuser (30a) installed to communicate in the water.

The aeration device configured as described above, when compressed air is supplied, the water collected in the reservoir through the air outlet of the outlet pipe and the diffuser 30 is discharged to the reaction tank by the pressure of the compressed air, followed by the diffuser 30a. Micro bubbles are ejected through) so that the aeration function can be combined. Here, the air outlet of the diffuser (30a) installed on the top of the outlet pipe 40 is lower than the depth where the air outlet of the other diffuser 30 for abandonment is located, that is, from the bottom of the reaction tank 300 When placed in a high position, water bodies and bubbles can flow out smoothly.

Therefore, the amount of oxygen transfer relative to the total amount of air can be increased than in the second embodiment in which a relatively large bubble is ejected through the outlet pipe. On the other hand, in the first and second embodiments, since the drainage and coarse bubbles flow out through the outlet pipe having a larger diameter than the air outlet, the oxygen transfer rate is very low. Can be.

Figure 4 is a side cross-sectional view for explaining the aeration device according to a fourth embodiment of the present invention.

The aeration device according to the fourth embodiment of the present invention includes a blower (10) for generating compressed air, a diffuser (30) for dispersing microbubbles in water through an air outlet, and a compressed air generated in the blower. An air supply pipe 20 for supplying the engine, a reservoir 70 for collecting and storing water bodies such as reaction liquid and condensate introduced into the air supply pipe, and an outlet pipe installed so that the upper end is in communication with the outside and the lower end is in communication with the reservoir. 40, and a pump 90 capable of pumping the water body, wherein the pump 90 applies various types of pumps such as centrifugal pumps, vacuum pumps, and fluid pumps using fluid energy as a power source without limitation. can do.

The suction port of the pump and the outlet pipe communicate with each other, and when the pump is operated, the water trapped in the reservoir can be drained to the outside.

In addition, the reservoir 70 is any one of the reservoirs 71, 72, 73 of the type shown in Figures 1, 2 and 3, but is not limited to this, the reservoir according to the second embodiment The combination of 72 and the water reservoir 73 in the form of a drain tube according to the third embodiment may be any one of these combinations. As such, the water storage part of the aeration device according to the present invention is not limited to the illustrated case, and can be configured in various ways without being limited in form if a water body such as a counter-flow reaction solution and condensate can be stored.

5 is a side cross-sectional view for explaining the aeration device according to a fifth embodiment of the present invention.

Aeration device according to a fifth embodiment of the present invention, the blower 10 for generating compressed air, the diffuser (30) for dispersing the fine bubbles in the water through the air outlet, the compressed air generated in the blower An air supply pipe 20 for supplying to the engine, a water storage part 70 for collecting and storing water bodies such as a reaction liquid and condensate flowed back into the air supply pipe, and an upper end communicating with the outside of the air supply pipe, and a lower end of the water storage part It may include an outlet pipe 40 is installed to communicate with, and the ejector 100 is a fluid pump capable of pumping the water.

The ejector uses a fluid supply port 101 for supplying a primary fluid to be used as a power source, an intake port 102 for sucking a secondary fluid, an outlet 103 through which a mixed fluid flows out, and fluid energy of the primary fluid. It is composed of a nozzle 104 for generating a negative pressure, that is, suction force, the inlet port of the ejector and the upper end of the outlet pipe 40 is connected to communicate with each other when the primary fluid is supplied through the fluid supply port 101 inlet 102 Due to the negative pressure formed in the outlet 103, the water collected in the reservoir can be drained to the outside of the air supply pipe.

Here, the fluid supply port 101 of the ejector 100 may be used as a primary fluid as a power source by separately supplying ground water, a constant water, or the like, or a parcel water pumped to the upper portion of the reaction vessel 300 from the outside. .

Thus, in the ejector, when the parcel water is used as the power source, the electric equipment such as the motor and the electric wire is omitted, so the device configuration is simple.

In addition, the fluid supply port 101 of the ejector may use the compressed air supplied from the outside as the primary fluid as a power source.

In addition, at least one side of the fluid supply port 101, the suction port 102 and the outlet 103 of the ejector 100 may be provided with a flow path adjusting means (110, 120, 130) can be operated when necessary.

In particular, at least one of the fluid supply port 101, the inlet port 102, the outlet port 103 of the ejector 100 comprises a flow path adjusting means as an automatic valve, the automatic valve is a timer or the air supply pipe ( By opening and closing operation in conjunction with the pressure sensor installed in the inside of 20), the water body is automatically drained in accordance with the time when water body accumulates inside the air supply pipe, or the water body accumulates inside the air supply pipe and the flow path is reduced to increase the pressure. When the pressure sensor detects this and can open the automatic valve so that the water body can be automatically drained.

In addition, at least one of the fluid supply port 101, the inlet port 102, and the outlet port 103 is configured to be an automatic valve provided with an actuator when the flow path adjusting means is configured as an automatic pressure valve. This simple and able to drain the body automatically.

6 is a side cross-sectional view illustrating the aeration device according to the sixth embodiment of the present invention.

Aeration device according to a sixth embodiment of the present invention, the fluid supply port 101, the inlet port 102, the outlet port 103 and the nozzle 104 which can transfer the fluid using the energy of the fluid as a power source is provided The inlet port of the ejector 100 and the upper end of the outlet pipe 40 are connected to each other, the fluid supply port 101 of the ejector is connected to the fluid supply pipe 60 so as to communicate with the air supply pipe (20) In addition, the fluid energy of the compressed air compressed by the blower is configured to use as a primary fluid as a power source.

The fluid supply port 101, the suction port 102, and the outlet 103 of the ejector 100 may be provided with a valve which is a flow path adjusting means, and may be operated to drain the water body in the air supply pipe if necessary.

Even if the flow path adjusting means on the outlet side is sealed and the flow path on the suction port 102 and the fluid supply port 101 is left open, the compressed air does not leak to the outside. Rather, when the inlet and the fluid supply port are opened, a circulation line is formed by the air supply pipe 20 and the fluid supply pipe 60 and the outlet pipe 40 which are disposed vertically and horizontally, and thus, the reaction tank. Compressed air is distributed to the plurality of diffusers 30 scattered in the lower portion of the 300 at an equal pressure and air volume.

Therefore, if only the movable side is considered, the flow path adjusting means may be installed only on the outlet 103 side, and the flow path adjusting means may be omitted on the inlet and the fluid supply side, but all the flow path adjusting means may be installed in consideration of maintenance.

Automatic valves and pressure valves are more expensive than manual valves and require careful maintenance. Therefore, the outlet 103, the flow path adjusting means 130 is installed as an automatic valve, the automatic valve is operated in conjunction with a timer or a pressure sensor installed in the air supply pipe 20 to automatically open and close, supply fluid Orifice 101 and the inlet 102 side flow path can be installed a general manual valve for maintenance and management.

In addition, a pressure valve may be installed at the outlet 103 and a general manual valve may be installed at the fluid supply port 101 and the suction port 102. The manual valves can be opened normally except at the time of blocking the flow path for repair.

As in this embodiment, when the compressed air generated for aeration is needed by-passed, and used as a primary fluid to drain water bodies such as a backflow inflow reaction liquid and condensate, a separate motor and electric facility are omitted. Simple device configuration and easy maintenance and operation.

 7 is a side cross-sectional view illustrating the aeration device according to the seventh embodiment of the present invention.

The aeration device according to the seventh embodiment of the present invention, the blower 10 for generating compressed air, the diffuser (30) for dispersing the fine bubbles in the water through the air outlet, the compressed air generated by the blower An air supply pipe 20 for supplying the engine, a water storage unit 70 for collecting and storing water bodies such as a reaction liquid and condensate introduced into the air supply pipe, and an upper end communicating with the outside of the air supply pipe, and a lower end of the water storage part Able to mix the air control valve 140 and the reaction solution installed in the air supply pipe 20 to the aeration device according to the first to sixth embodiments of the present invention consisting of an outlet pipe 40 and the like installed in communication with the It is configured to further include a stirrer 200.

The air control valve 140 may be opened and closed to supply or stop air to the diffuser 30, stop the air supply by closing the air control valve 140, and operate the agitator to prevent aeration. And the intermittent aeration function can be provided to cross-repeat the process of opening the air control valve 140 to supply air and stop the operation of the stirrer to give up to a set condition.

As such, when the aeration is stopped, the operation of the agitator is stopped, and energy can be saved compared to the underwater aeration device, which is a mechanical diffuser that operates 24 hours a day without distinguishing between aeration and aeration.

8 is a side cross-sectional view for explaining the aeration device according to the eighth embodiment of the present invention.

Aeration device according to an eighth embodiment of the present invention, the blower 10 for generating compressed air, the diffuser (30) for dispersing the fine bubbles in the water through the air outlet, the compressed air generated by the blower An air supply pipe 20 for supplying the engine, a water storage unit 70 for collecting and storing water bodies such as a reaction liquid and condensate introduced into the air supply pipe, and an upper end communicating with the outside of the air supply pipe, and a lower end of the water storage part Able to mix the air control valve 140 and the reaction solution installed in the air supply pipe 20 to the aeration device according to the first to sixth embodiments of the present invention consisting of an outlet pipe 40 and the like installed in communication with the It further comprises a stirrer 210, the stirrer is composed of a conventional submersible aerator consisting of a drive unit and a rotating shaft, an impeller and an air dispersing means.

In the case of improving the existing reaction tank in which the underwater bubbler is installed and operated by the intermittent aeration process, the power source of the underwater bubbler is set based on the aeration capacity. Therefore, when the aeration is agitated, the floc is dismantled due to excessive stirring force. Wasted. However, there is a problem in that the facility cost increases when replacing the already installed underwater bubbler with a stirrer. Therefore, a new diffuser-type aeration system was established and the existing aeration equipment installed for abandonment was dedicated for agitation, but a frequency converter (Electrical Converter) was added to properly control the excessive agitation power to preserve the existing aeration equipment. And stirring power can be adjusted.

As described above, despite the excellent aeration efficiency according to the present invention, due to the phenomenon that the water body flows back during the aeration of aeration, the problem of the backflow of the diffuser that has been avoided in the configuration of the intermittent aeration device is solved. As a result, the diffuser can be applied to the intermittent aeration process in which aeration and aeration are repeated, and energy saving can be achieved since it can replace an underwater aeration device.

In the foregoing, the present invention has been described in detail based on the embodiments and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the claims below.

10: blower 20: blower piping
30,30a: diffuser 40: outlet pipe
41: flow path adjusting means 42: one-way flow path side of the outflow pipe
50: air supply pipe 51: one-way flow path
60: fluid supply pipe 70, 71, 72, 73: reservoir
80: washing water supply pipe 90: pump
100: ejector 101: fluid supply port
102: inlet 103: outlet
104: nozzle
110, 120, 130: flow path adjusting means 140: air control valve
200: stirrer 210: underwater bubble equipment
300: reactor

Claims (16)

A blower 10 for generating compressed air;
An diffuser 30 for dispersing microbubbles into water through an air outlet;
An air supply pipe 20 for supplying the compressed air generated by the air blower to the diffuser;
Reservoirs 70, 71, 72, and 73 for storing water such as reaction liquid and condensate backflowed into the air supply pipe;
Outflow pipe 40 is installed so that the top is in communication with the outside and the bottom is in communication with the reservoir; And
A pump 90 capable of pumping water bodies;
The suction port of the pump and the reservoirs 70, 71, 72, and 73 are communicated with each other by the outlet pipe 40, and the body of water collected in the reservoir at the time of backflow in the aeration period is drained by the pump. Abandonment device. A blower 10 for generating compressed air;
An diffuser 30 for dispersing microbubbles into water through an air outlet;
An air supply pipe 20 for supplying the compressed air generated by the air blower to the diffuser;
Reservoirs 70, 71, 72, and 73 for storing water such as reaction liquid and condensate backflowed into the air supply pipe;
An outlet pipe 40 having an upper end communicating with the outside of the air supply pipe and having a lower end communicating with the reservoir part; And
And; a washing water supply pipe (80) installed to communicate with the inside of the air supply pipe (20).
During the aeration, the water flows back into the water reservoir, which is collected in the reservoir, and drained to the outside of the air supply pipe by the pressure of the compressed air supplied from the blower.
Disposal device, characterized in that for supplying the washing water through the washing water supply pipe to clean the inside of the air supply pipe (20) and diffuser (30). The method of claim 2,
The washing water is an aeration device characterized in that the defoaming water for defoaming the foam generated on the water surface of the reaction tank (300). A blower 10 for generating compressed air;
An diffuser 30 for dispersing microbubbles into water through an air outlet;
An air supply pipe 20 for supplying the compressed air generated by the air blower to the diffuser;
Reservoirs 70, 71, 72, and 73 for storing water such as reaction liquid and condensate backflowed into the air supply pipe;
Outflow pipe 40 is installed so that the top is in communication with the outside of the air supply pipe and the bottom is in communication with the reservoir; And
And an ejector (100) having a fluid supply port (101), an inlet port (102), an outlet port (103), and a nozzle (104) capable of transferring the fluid using energy of the fluid as a power source.
The inlet of the ejector and the top of the outlet pipe 40 is connected to communicate with each other,
Aeration device which flows into the backflow during the aeration and collected in the reservoir is drained to the outside of the air supply pipe by the pressure of the compressed air supplied from the blower. 5. The method of claim 4,
The fluid supply port 101 of the ejector 100 is connected to communicate with the air supply pipe 20 by the fluid supply pipe 60, and the fluid energy of the compressed air compressed in the blower 10 through the fluid supply pipe 60 Aeration device characterized in that to generate a negative pressure in the inlet (102) using the power source. 5. The method of claim 4,
The fluid supply port 101 of the ejector 100 is connected to communicate with the parcel water supply pipe, and generates a negative pressure in the inlet port 102 by using the fluid energy of the parcel water pumped from the parcel water supply pump as a power source. Abandonment device made with. 5. The method of claim 4,
The outlet 103 of the ejector 100 is provided with a flow path control means 130 consisting of an automatic valve, the flow path control means 130 is interlocked with a pressure sensor installed inside the timer or the air supply pipe 20 Aeration device, characterized in that the opening and closing operation. 5. The method of claim 4,
The outlet 103 of the ejector 100 is provided with a flow path adjusting means 130 consisting of a pressure valve, the flow path adjusting means 130 is opened when the internal pressure of the air supply pipe exceeds a predetermined pressure Abandonment device. A blower 10 for generating compressed air;
An diffuser 30 for dispersing microbubbles into water through an air outlet;
An air supply pipe 20 for supplying the compressed air generated by the air blower to the diffuser;
Reservoirs 70, 71, 72, and 73 for storing water such as reaction liquid and condensate backflowed into the air supply pipe;
Outflow pipe 40 is installed so that the top is in communication with the outside of the air supply pipe and the bottom is in communication with the reservoir;
A stirrer 200 capable of stirring the reaction liquid in the reactor 300; And
It includes; air control valve 140 for supplying or stopping the aeration compressed air to the diffuser;
Close the air control valve to stop the air supply and operate the stirrer, the aeration agitation, stop the operation of the stirrer and open the air control valve to supply air to give up and repeat the aeration and aeration agitation in a repeated manner Intermittent aeration function is provided,
Aeration device which flows into the backflow during the aeration and collected in the reservoir is drained to the outside of the air supply pipe by the pressure of the compressed air supplied from the blower. 10. The method of claim 9,
The stirrer, aeration device, characterized in that consisting of a hydrostatic apparatus 210 and a frequency controller is provided with an impeller and diffuser means. 11. The method according to any one of claims 1 to 10,
Further comprising: an outlet pipe side one-way flow passage 42 for opening and closing the communication between the outlet pipe 40 and the reaction tank 300,
When the compressed air is supplied, the one-way flow path 42 of the outlet pipe side is opened by the pressure of the compressed air, and the water body of the reservoirs 70, 71, 72, and 73 is drained to the reaction tank through the outlet pipe 40. When the supply is stopped, the one-way flow path 42 is closed, the aeration device characterized in that the back flow of the reaction solution to the inside of the air supply pipe 20 through the outlet pipe is blocked. 11. The method according to any one of claims 1 to 10,
Installed to communicate with the outflow pipe 40 and disposed inside the reaction vessel 300
It further comprises a diffuser (30a),
When compressed air is supplied, the water and micro bubbles collected in the reservoirs 70, 71, 72, and 73 are discharged from the reaction tank through the air outlets of the outlet pipe 40 and the acid pipe 30a by the pressure of the compressed air. Aeration device characterized in that. 11. The method according to any one of claims 1 to 10,
An air supplement pipe 50 installed at one end to communicate with the atmosphere and at the other end to communicate with the air supply pipe 20; And
Further comprising a one-way flow path 51 installed in the air supplement pipe,
When the supply of compressed air is stopped, the one-way flow path is opened so that atmospheric air is sucked into and replenished into the air supply pipe through the air supplement pipe, thereby preventing the inflow of water back into the diffuser 30 and the air supply pipe.
Aeration device characterized in that the one-way flow path is closed when the compressed air is supplied to prevent the leakage of compressed air through the air supplement pipe. 11. The method according to any one of claims 1 to 10,
Further comprising; flow path adjusting means for opening and closing the outflow pipe 40;
The flow path adjusting means 41,
Aeration device, characterized in that the automatic valve operating in conjunction with the timer, the pressure sensor installed in the air supply pipe 20 or the pressure valve is opened when the pressure inside the air supply pipe 20 exceeds a predetermined pressure. delete delete

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