KR102197622B1 - Air injection system for odor reduction - Google Patents

Abstract

The present invention relates to an air injection device for reducing odor and, more specifically, to an air injection device in a casing shape installed on one side of a storage tank and circulating the water in the storage tank. The air injection device for reducing odor comprises: a circulation unit in which a circulation pump connected to an inlet pipe for inflowing the water from the storage tank and a discharge pipe discharging the water into the storage tank through the circulation pump are located at the bottom of the casing; an air generating unit located at the top of the circulation unit and injecting air into the discharge pipe; and a mixing unit stirring the air injected from the air generating unit and water moving through the discharge pipe, wherein the circulation unit is characterized in that the water having increased concentration of dissolved oxygen through the mixing unit circulates into the storage tank.

Description

Air injection device for odor reduction {AIR INJECTION SYSTEM FOR ODOR REDUCTION}

The present invention relates to an air injection device for reducing odor, and more particularly, by introducing water in a storage tank to a circulation pump, mixing the air generated in the air generating unit with water to generate mixed water, and The present invention relates to an air injection device for reducing odor by re-mixing and circulating mixed water with fine air to increase the concentration of dissolved oxygen in a storage tank to oxidize and remove odor substances.

The odor generated from the sewer system causes headaches, vomiting, discomfort or disgust, increases mental stress, and interferes with the comfortable life of residents.

These odors are mainly generated in the combined sewage treatment area, are generated in private sewage treatment facilities such as septic tanks, are introduced into sewage pipes, are discharged to the outside through manholes and receivers, and transmitted to people. And the main substances that cause odor are substances such as hydrogen sulfide (H2S), methyl mercaptan (CH3SH), and ammonia, and since a septic tank of a decaying method is generally applied, a more serious odor problem occurs. Alternatively, a complex odor, which is a odor that causes discomfort or disgust by stimulating the sense of smell by two or more odor substances acting together can also be a problem.

In addition, the installation of a sewage odor prevention device in the septic tank is institutionalized (sewerage method, odor prevention method) in order to prevent the inflow of odorous substances into the public sewage system and outflow into the atmosphere, and a typical example is the introduction of an air injection device into the septic tank.

However, separate air diffusers and blowers are installed under the septic tank to inject air into the septic tank. At this time, when the blower is continuously operated to reduce odor, there is a problem of rapid wear of the blower due to the continuous operation of the blower and noise and heat generated in the blower.

In addition, an increase in the amount of electricity used may be a big problem, and there is a risk of having to replace the air diffuser because manpower is put into the inside of the septic tank where odorous substances and toxic gases are generated when the air diffuser is damaged.

In addition, in the case of the existing aging septic tank, a thick scum layer is accumulated on the top of the septic tank due to scum generation. As a result, air diffusion in the septic tank and efficiency of reducing odor substances may decrease.

In addition, even in the case of a new septic tank, if there is a dune section where air bubbles from the air diffuser do not reach, the efficiency of reducing odors due to scum generation or the like may decrease. In addition, when an excessive amount of air is injected to reduce odor, air and odor substances may be leaked to the outside of the septic tank by the amount of air that is excessively injected.

In order to overcome this problem, looking at the Republic of Korea Patent Registration No. 10-1402684 (registered on May 27, 2014), "Odor reduction device and odor reduction method using SOB medium", one or more rot tanks and a filtering tank formed on one side of the rot tank are described. In the odor reduction device in the odor generating area of a sewage facility including a sewage treatment tank having a filtration tank, a discharge tank formed on one side of the filtration tank, an odor gas treatment tank formed on one side of the discharge tank, and in order to inject air into the water under the discharge tank It is installed in the air injection device installed, the odor gas treatment tank, and guides the odor gas reduction unit in the atmosphere to oxidize hydrogen sulfide in the atmosphere using the hydrogen sulfide oxidizing medium and the odor gas from the discharge tank to the atmosphere odor gas reduction unit, and removes the deodorized gas. It provides a configuration including a gas supply and discharge line for discharge.

However, such a conventional technique is an atmospheric odor gas reduction unit for oxidizing hydrogen sulfide in the atmosphere using a hydrogen sulfide oxidizing medium, but it is possible to remove some of the odor gas, but due to the scum accumulated on the surface of the sewage in the discharge tank, air B. Since the circulation of sewage is not smooth, there is a limitation in removing the fundamental cause of odor with only such atmospheric odor gas reduction unit.

In addition, it is necessary to smooth the flow of air and wastewater by pulverizing scum accumulated on the surface of sewage in order to oxidize substances that cause odor in the discharge tank.

Korean Patent Registration 10-1402684 ([0009] 2014.05.27 registered) Korea registered utility model 20-0427714 (2006.09.25.Registration)

In order to solve the problems of the prior art as described above, the present invention introduces water in a storage tank to a circulation pump, and generates mixed water by mixing the air generated in the air generating unit with water, and fine mixed water by the mixing unit. It is to provide an air injection device for reducing odor with a new structure that oxidizes and removes odor substances by increasing the concentration of dissolved oxygen in the storage tank by remixing with air and circulating it.

To this end, the air generated from the air blower constituting the air generating unit is mixed with water with a venturi injector to generate mixed water, remixed to generate fine air in the mixed water through the mixing nozzle unit, and circulated in the storage tank to Regardless, it is to inject stable air.

The present invention in order to solve the above problems

In the air injection device for reducing odor in a casing shape installed on one side of the storage tank to circulate water in the storage tank,

A circulation unit in which a circulation pump connected to an inlet pipe for introducing water from the storage tank and a discharge pipe for discharging water into the storage tank through the circulation pump is located under the casing,

An air generating unit positioned above the circulation unit to inject air into the discharge pipe; and

A mixing unit for stirring the air injected from the air generating unit and water moving through the discharge pipe,

Characterized in that the circulation unit circulates water having an increased concentration of dissolved oxygen through the mixing unit into the storage tank

It provides an air injection device for reducing odor.

In the air injection device for reducing odor according to an embodiment of the present invention, the air generator is an air blower that generates air, an injection pipe connected to the air blower and one end connected to the discharge pipe, and the air blower It may include a solenoid valve disposed adjacent to and connected to one side of the injection pipe to control the movement of air.

In the air injection device for reducing odor according to an embodiment of the present invention, the mixing unit moves the air generated from the air generating unit to the discharge pipe to form a mixed water by mixing air and water, and the discharge pipe It is installed between one end of the storage tank and may include a mixing nozzle part for forming fine air in the mixed water moving into the storage tank.

In the air injection device for reducing odor according to an embodiment of the present invention, the mixing nozzle part is formed in a tubular shape to pass the mixed water by being coupled between the discharge pipe and the storage tank, the diameter of the central part is the diameter of both sides An external reduction portion formed to form a more inclined and narrower to speed up the flow rate of the mixed water, an expansion portion extending inclined to both sides of the external reduction portion, and one end of the inner tube formed by a predetermined distance from the inner peripheral surface of one side of the expansion A diameter of the mixed water flowing into the inside of the mixed water is accelerated by an internal reduction unit formed to have a narrow diameter corresponding to the external reduction unit, and the external reduction unit includes a portion of the mixed water introduced through the discharge pipe. It may be characterized in that it passes through the inside of the shrinking portion, and the remaining mixed water is stirred by passing through the outside of the inner shrinking portion.

In the air injection device for reducing odor according to an embodiment of the present invention, the expansion portion may further include a bubble protrusion that protrudes a plurality of protrusions along an inner circumferential surface to form the mixed water into fine bubbles. .

The air injection device for odor reduction according to the present invention is a device that can be installed on-site when it is necessary to prevent corruption and reduce odor in storage tanks and discharge tanks, and an air generator and air that injects air into the circulation part and circulation part It has the advantage of being easy to control because it can be easily applied to the field by making the mixing part that stirs the water and water as an integrated unit.

In addition, the air injection device for odor reduction according to the present invention mixes the air generated from the air blower and water moving to the discharge pipe with a venturi injector to generate mixed water, and remixes the mixed water into fine air by the mixing nozzle unit. By circulating and increasing the concentration of dissolved oxygen in the water in the storage tank, it is possible to reduce the odor in the storage tank because it prevents spoilage and removes odor substances (oxidation of hydrogen sulfide into sulfate) through oxidation treatment.

In addition, the air injection device for odor reduction according to the present invention forms a bubble protrusion in the expansion part of the mixing nozzle to generate fine bubbles in the mixed water moving at a fast flow rate, so that the oxidation treatment time in the storage tank. There is an advantage to shorten it.

In addition, the air injection device for reducing odor according to the present invention has the advantage of facilitating the use of reused water by preventing corruption in the reused water storage tanks such as rainwater use facilities and heavy water treatment facilities due to high concentration of dissolved oxygen in water in the storage tank.

In addition, by reducing and discharging odors from wastewater tanks such as septic tanks and sewage treatment facilities, there is an advantage of preventing discomfort due to odors and improving the living environment of local residents.

1 is a block diagram showing the configuration of an air injection device for reducing odor according to an embodiment of the present invention.
2 is an external view of an air injection device for reducing odor according to an embodiment of the present invention.
3 is a detailed internal view showing the interior of an air injection device for reducing odor according to an embodiment of the present invention.
4 is a conceptual diagram showing the concept of a mixing nozzle unit in an air injection device for reducing odor according to an embodiment of the present invention.
5 is an exemplary view showing the configuration of the bubble protrusion further included in the mixing nozzle of FIG. 4.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment in which a person of ordinary skill in the art to which the present invention pertains can easily implement the present invention. However, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

In addition, when a part of the specification is said to be'connected' with another part, this includes not only the case that it is directly connected but also the case that it is indirectly connected with another component in the middle. In addition, "including" a certain component means that other components may be further included, rather than excluding other components unless specifically stated to the contrary.

Hereinafter, an air injection device for reducing odor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram showing the configuration of an air injection device for odor reduction according to an embodiment of the present invention, Figure 2 is an external view showing the exterior of an air injection device for odor reduction according to an embodiment of the present invention, 3 is a detailed internal view showing the interior of an air injection device for reducing odor according to an embodiment of the present invention, and FIG. 4 is a concept of a mixing nozzle unit in the air injection device for reducing odor according to an embodiment of the present invention FIG. 5 is a conceptual diagram illustrating a configuration of a bubble protrusion in the mixing nozzle of FIG. 4, and FIG.

1 and 2, the air injection device 10 for reducing odor according to an embodiment of the present invention includes a circulation unit 100, an air generating unit 200, and a mixing unit 300. .

More specifically, as shown in Figs. 1 and 3, the air injection device 10 for reducing odor according to the embodiment of the present invention is installed on one side of the storage tank to circulate the water in the storage tank (1) In the air injection device for reducing odor of the shape, the circulation pump 120 connected to the inlet pipe 110 for introducing water from the storage tank and the discharge pipe 130 for discharging water into the storage tank through the circulation pump are the lower part of the casing. The circulation unit 100 positioned at, an air generating unit 200 positioned above the circulation unit to inject air into the discharge pipe, and a mixing unit 300 for agitating the air injected from the air generating unit and the water moving through the discharge pipe ), and the circulation unit 100 circulates water having increased dissolved oxygen concentration through the mixing unit 300 into the storage tank.

Here, the casing 1 is formed in the shape of a case with an empty inside, as shown in FIG. 2, and a circulation portion 100 is disposed at the lower portion thereof. In addition, the casing 1 has an air generating unit 200 that generates air on one side of the upper portion and is connected to the discharge pipe 130.

In addition, the casing 1 has a control unit 400 formed on the other side of the upper portion to control the pressure of air and the movement of water in the storage tank to prevent peroxidation in the storage tank.

In addition, the storage tank includes indicating rainwater use facilities and heavy water treatment facilities. For this reason, by expanding the supply of reuse facilities due to lack of water, the treated water stored in the storage tank is circulated to the air injection device 10 for odor reduction according to an embodiment of the present invention to prevent odor.

In addition, the casing 1 is formed with a wheel at the bottom, so it is possible to move for installation according to the situation of the site.

1 and 3, the circulation unit 100 is a circulation pump 120 connected to an inlet pipe 110 for introducing water from the storage tank and a discharge pipe for discharging water into the storage tank through the circulation pump 120 ( 130) is located under the casing (1).

In other words, the circulation unit 100 is provided with an inlet pipe 110 through which water from the storage tank flows into the casing 1. In addition, water introduced into the inlet pipe 110 moves to the discharge pipe 130 by the circulation pump 120. This process is continuously repeated to circulate water in the storage tank.

That is, the circulation unit 100 circulates water having an increased concentration of dissolved oxygen through the mixing unit 300 into the storage tank.

In addition, it is preferable that the circulation unit 100 arranges the discharge pipe 130 adjacent to the air generating unit 200 to facilitate the injection of air.

1 and 3, the air circulation unit 200 is positioned above the circulation unit 100 and serves to inject air into the discharge pipe 130.

To this end, the air circulation unit 200 includes an air blower 210, an injection pipe 220, and a solenoid valve 230.

The air blower 210 generates air and is disposed on the upper side of the casing 1. In addition, it is preferable that at least one air blower 210 is disposed to adjust the amount of air corresponding to the amount of water moving to the discharge pipe 130.

The injection pipe 220 is a pipe connected to the air blower 210 on one side and the other to the discharge pipe 130.

These injection pipes 220 are each connected to a transfer pipe connected to the air blower 210, and transport air to inject air into the discharge pipe 130 by a solenoid valve 230 to be described later.

The solenoid valve 230 is disposed adjacent to the air blower 210 and is connected to one side of the injection pipe 220 to control the movement of air.

In particular, the solenoid valve 230 controls the movement of air by closing when the pressure of air reaches a certain level or higher. Accordingly, it is possible to control the mixing ratio of water and air moving the discharge pipe 130.

3 and 4, the mixing unit 300 agitates the air injected from the air generating unit 200 and the water moving through the discharge pipe 130. To this end, the mixing unit 300 includes a venturi injector 310 and a mixing nozzle unit 320.

The venturi injector 310 serves to form mixed water by mixing air and water by moving the air generated from the air generating unit 200 to the discharge pipe 130.

That is, the venturi injector 310 is installed in any part of the discharge pipe 130 and is connected to the injection pipe 220 to stir the air generated from the air blower 210 and the water moved through the discharge pipe 130 It is formed from mixed water in which air is mixed in water.

Referring to FIG. 4, the mixing nozzle part 320 is installed between one end of the discharge pipe 130 and the storage tank, and serves to form fine air in the mixed water moving into the storage tank.

To this end, the mixing nozzle unit 320 includes an external reduction unit 321, an expansion unit 322, and an internal reduction unit 323.

The external reduction unit 321 is coupled between the discharge pipe 130 and the storage tank to be formed in a tubular shape to pass the mixed water, and the diameter of the central portion is formed to be inclined and narrower than the diameters of both sides, so that the flow velocity of the mixed water is rapidly increased. do.

Particularly, in the external reduction unit 321, a part of the mixed water flowing through the discharge pipe 130 passes through the inside of the internal reduction unit 323, and the remaining mixed water passes through the outside of the internal reduction unit 323 and is stirred. Let it be. For this reason, air is remixed with the mixed water to further increase the dissolved oxygen concentration in the water.

The expansion part 322 is inclined toward both sides of the external reduction part 321 and expands. The expansion unit 322 facilitates the introduction of the mixed water, and facilitates the remixing of the mixed water and air in the external reduction unit 321 and then discharge into the storage tank.

The inner reducing part 323 is formed so that one end of the inner tube formed by being spaced a predetermined distance from the inner circumferential surface of one side of the expansion part 322 is formed to have a narrow diameter corresponding to the outer reducing part 321 to control the flow velocity of the mixed water flowing into the interior Do it quickly.

In this way, the mixing nozzle unit 300 is remixed in the external reduction unit 321 when the mixed water that has passed through the internal reduction unit 323 at a fast flow rate and the mixed water that has passed outside the internal reduction unit 323 meet each other. It moves at a fast flow rate. Then, the re-mixed water that has passed through the external reduction unit 321 is mixed again in the expansion unit 322.

This mixing nozzle unit 300 increases the dissolved oxygen (DO) concentration in the water by agitating water and air for the second time the mixed water that has passed through the circulation unit 100 and the air generating unit 200 By circulating, stable air can be injected regardless of the change in the depth of the reservoir.

Accordingly, the air injection device 10 for reducing odor according to an embodiment of the present invention is to reduce odor by oxidizing hydrogen sulfide, which is a odor substance in water stored in a storage tank, with sulfate, thereby making the surrounding environment comfortable.

Meanwhile, in the air injection device 10 for reducing odor according to an embodiment of the present invention, the expansion part 322 may further include a bubble protrusion 322a.

Referring to FIG. 5, a plurality of protrusions protrude along the inner circumferential surface of the bubble protrusion 322a to form the mixed water into fine bubbles.

This bubble protrusion 322a rubs the mixed water remixed in the external reduction unit 321 to form fine bubbles, thereby increasing the amount of dissolved oxygen in the mixed water even if the performance of the air blower 210 is degraded. .

As described above, in the detailed description of the present invention, a preferred embodiment of the present invention has been described, but this is illustrative of the most preferred embodiment of the present invention and does not limit the present invention. In addition, it goes without saying that anyone of ordinary skill in the art to which the present invention belongs can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Accordingly, the scope of the present invention is not limited to the above-described embodiments, but may be implemented in various types of embodiments within the scope of the appended claims. And without departing from the gist of the present invention claimed in the claims, anyone of ordinary skill in the art to which the present invention belongs is considered to be within the scope of the description of the claims of the present invention to various ranges that can be modified.

10: Air injection device to reduce odor
1: casing
100: circulation part
110: inlet pipe
120: circulation pump
130: discharge pipe
200: air generator
210: Air blower
220: injection tube
230: solenoid valve
300: mixing part
310: Venturi injector
320: mixing nozzle part
321: external reduction part
322: extension
322a: bubble protrusion
323: internal reduction part
400: control unit

Claims (5)

In the air injection device for reducing odor in the shape of a casing installed on one side of the storage tank to circulate water in the storage tank,
A circulation unit in which a circulation pump connected to an inlet pipe for introducing water from the storage tank and a discharge pipe for discharging water into the storage tank through the circulation pump is located under the casing;
An air generating unit positioned above the circulation unit to inject air into the discharge pipe; And
A venturi injector that moves the air generated from the air generating unit to the discharge pipe to form a mixed water by mixing air and water, and the mixed water that is installed between one end of the discharge pipe and the storage tank, and moves into the storage tank It includes a mixing part formed including a mixing nozzle part for forming fine air,
The mixing nozzle part
An external reduction unit coupled between the discharge pipe and the storage tank and formed as a pipe through which the mixed water passes, and the diameter of the central portion is formed to be inclined and narrower than the diameters of both sides to increase the flow velocity of the mixed water;
An extension portion extending in an inclined manner toward both sides of the external reduction portion; And
One end of the inner pipe formed by being spaced apart from the inner circumferential surface of one side of the expansion part is formed to have a narrow diameter corresponding to the outer reduction part, and includes an internal reduction part for speeding the flow velocity of the mixed water introduced into the interior,
The extension part
A plurality of protrusions protruding along the inner circumferential surface further comprises a bubble protrusion for forming the mixed water mixed with fine air introduced into the external reduction unit into fine bubbles, and the other mixed water discharged through the internal reduction unit and the fine bubbles Characterized in that the amount of dissolved oxygen is increased by stirring
Air injection device to reduce odor.
The method of claim 1,
The air generator
An air blower that generates air;
An injection pipe having one side connected to the air blower and the other side connected to the discharge pipe; And
Arranged adjacent to the air blower, including a solenoid valve connected to one side of the injection pipe to control the movement of air
Air injection device to reduce odor.
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