Ozone decomposition device

The present disclosure includes a housing including an installation space formed therein, an inlet through which an external gas flows into the installation space, and an outlet through which a gas inside the installation space is discharged to the outside, a first ozone decomposition unit installed in the installation space of the housing to decompose ozone in the external gas flowing into the installation space inside the housing through the inlet, and a second ozone decomposition unit installed in the installation space of the housing to receive the gas decomposed by the first ozone decomposition unit and decompose residual ozone in the gas.

BACKGROUND

Technical Field

The present disclosure relates to an ozone decomposition device, and more particularly, to an ozone decomposition device capable of shortening a decomposition time of unreacted ozone and simultaneously decomposing a larger amount of ozone by primarily decomposing unreacted ozone discharged after use through a catalytic reaction of a first ozone decomposition unit, and secondarily decomposing the ozone through a temperature reaction of a second ozone decomposition unit.

Background Art

Since ozone has strong sterilizing power and is capable of sterilization, organic matter decomposition, odor removal, and decolorization, the ozone is used in various fields such as air pollutant treatment, water treatment, and waste treatment. However, since the ozone has a strong oxidizing power, unreacted ozone discharged after use (hereinafter referred to as ‘ozone off-gas’) has a fatal influence on a human body, such as causing physical discomfort such as eye inflammation and headache, and reducing resistance to cold and pneumonia to cause chronic heart disease, asthma, bronchitis, or the like.

In recent years, research on the development of a catalyst for decomposing the ozone off-gas and a system for treating the ozone off-gas has been conducted. Most of currently developed ozone decomposition devices are devices that decompose an ozone off-gas using a catalyst such as manganese dioxide or platinum, and have a problem in that it takes a long time to decompose the ozone off-gas and a large amount of ozone cannot be simultaneously decomposed because the ozone off-gas is simply decomposed through a reaction with a catalyst.

DETAILED DESCRIPTION OF THE INVENTION

Technical Challenge

The present disclosure is to solve the above problem, and an object of the present disclosure is to provide an ozone decomposition device capable of shortening a decomposition time of unreacted ozone and simultaneously decomposing a larger amount of ozone by primarily decomposing unreacted ozone discharged after use through a catalytic reaction of a first ozone decomposition unit, and secondarily decomposing the ozone through a temperature reaction of a second ozone decomposition unit.

Effects of the Invention

According to the present disclosure, the object is achieved by an ozone decomposition device including: a housing including an installation space formed therein, an inlet through which an external gas flows into the installation space, and an outlet through which a gas inside the installation space is discharged to the outside; a first ozone decomposition unit installed in the installation space of the housing to decompose ozone in the external gas flowing into the installation space inside the housing through the inlet; and a second ozone decomposition unit installed in the installation space of the housing to receive the gas decomposed by the first ozone decomposition unit and decompose residual ozone in the gas.

Here, the installation space inside the housing may be partitioned into a first installation space and a second installation space by a partition wall, a portion of the partition wall being opened so that the first installation space communicates with the second installation space, the first ozone decomposition unit may be installed in the first installation space, the second ozone decomposition unit may be installed in the second installation space, the inlet may be installed to communicate with the first installation space, and the outlet may be installed to communicate with the second installation space.

Meanwhile, the first ozone decomposition unit may include a support formed in a porous structure; and a catalyst supported on internal pores or surface of the support.

In this case, the catalyst may include at least one of manganese dioxide and platinum.

Further, the second ozone decomposition unit may include a thermal conductor formed to be bent a plurality of times; and a heat source connected to the thermal conductor to supply heat to the thermal conductor.

Further, a plurality of housings, a plurality of first ozone decomposition units, and a plurality of second ozone decomposition units may be provided, the housings may be formed in a mutually stacked state, the plurality of first ozone decomposition units may be formed to be disposed on the same vertical line, and the plurality of second ozone decomposition units may be formed to be disposed on the same vertical line.

Here, an auxiliary outlet formed in a lower portion of the housing to communicate with the first installation space, and an auxiliary inlet formed in an upper portion of the housing to communicate with the second installation space may be further included, the auxiliary outlet of the upper housing may be connected to the inlet of the lower housing, and the outlet of the upper housing may be connected to the auxiliary inlet of the lower housing.

Further, a plurality of housings, a plurality of first ozone decomposition units, and a plurality of second ozone decomposition units may be provided, the housings may be formed in a mutually stacked state, the upper housing and the lower housing are formed so that left and right sides thereof are reversed and the first ozone decomposition unit and the second ozone decomposition unit are alternately stacked on the same vertical line.

In this case, the outlet of the upper housing may be installed to be connected to the inlet of the lower housing.

Advantageous Effects

Thus, with the present disclosure, it is possible to shorten a decomposition time of unreacted ozone and simultaneously decompose a larger amount of ozone by primarily decomposing unreacted ozone discharged after use through a catalytic reaction of the first ozone decomposition unit, and secondarily decomposing the ozone through a temperature reaction of the second ozone decomposition unit.

DESCRIPTION OF EXEMPLARY EMBODIMENTS

Specific structural or functional descriptions of embodiments according to the concept of the present disclosure disclosed herein are only illustrated for the purpose of describing the embodiments according to the concept of the present disclosure, and the embodiments according to the concept of the present disclosure can be implemented in various forms and are not limited to the embodiments described herein.

Since various changes may be made to the embodiments according to the concept of the present disclosure, which may have several forms, the embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present disclosure to specific disclosed forms, and changes, equivalents, or substitutions included in the spirit and scope of the present disclosure are included.

Although the terms first, second, etc. may be used to describe various components, the components should not be limited by the terms. The terms are only used to distinguish one component from other components. For example, a first component could be termed a second component and, similarly, a second component could be termed a first component without departing from the scope of the present disclosure.

It will be understood that when a component is referred to as being “connected” or “coupled” to another component, the component may be directly connected or coupled to the other component or intervening elements may be present. On the other hand, when a component is referred to as being “directly connected” or “directly coupled” to another component, there are no intervening elements present. Expressions describing a relationship between components, such as “between” and “directly between” or “adjacent to” and “directly adjacent to”, should be construed similarly. The terms used herein are for the purpose of describing specific embodiments only and is not intended to limit the present disclosure. The singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Hereinafter, an ozone decomposition device according to a preferred embodiment of the present disclosure will be described with reference to the accompanying drawings.

As illustrated inFIGS.1and2, the ozone decomposition device according to the present disclosure includes a housing100including an installation space formed therein, an inlet150through which external gas flows into the installation space, and an outlet160through which a gas inside the installation space is discharged to the outside, a first ozone decomposition unit200installed in the installation space of the housing100to decompose ozone of external gas flowing into the installation space inside the housing100through the inlet150, and a second ozone decomposition unit300installed in the installation space of the housing100to receive the gas decomposed by the first ozone decomposition unit200and decompose residual ozone in the gas.

First, the housing100is a substantially rectangular box-shaped structure with an open top, and includes an installation space formed therein, and a cover110for closing the installation space installed to close the open top. Here, the installation space inside the housing100is partitioned into a first installation space130and a second installation space140by a partition wall120installed inside the housing100. In this case, a portion of the partition wall120is formed to be opened so that the first installation space130and the second installation space140can communicate with each other.

The inlet150for causing the external gas to flow into the installation space inside the housing100is a through hole formed with a predetermined diameter, and is formed to pass through the cover110. The inlet150is formed in the cover110located above the first installation space130so that the outside of the housing100communicates with the first installation space130.

The outlet160for discharging the gas inside the installation space to the outside of the housing100is a through hole formed with a predetermined diameter, and is formed to pass through a lower portion of the housing100. The outlet160is formed in the lower portion of the housing100in which the second installation space140is formed, to enable the second installation space140to communicate with the outside of the housing100.

Meanwhile, the present disclosure further includes an auxiliary outlet151formed in the lower portion of the housing100to communicate with the first installation space130, and an auxiliary inlet161formed in an upper portion of the housing100to communicate with the second installation space140.

The auxiliary outlet151is a through hole formed with a predetermined diameter, and is formed to pass through the lower portion of the housing100. The auxiliary outlet151is formed in the lower portion of the housing100in which the first installation space130is formed, so that the first installation space130communicates with the outside of the housing100.

Further, the auxiliary inlet161is a through hole formed with a predetermined diameter and is formed to pass through the cover110. The auxiliary inlet161is formed in the cover110located above the second installation space140so that the outside of the housing100communicates with the first installation space130.

When a plurality of housings100are provided and stacked, the auxiliary outlet151and the auxiliary inlet161are configured to enable the upper housing100and the lower housing100to communicate with each other, and when a single housing100is provided, the auxiliary outlet151and the auxiliary inlet161may be closed with a separate stopper (not illustrated).

The first ozone decomposition unit200is installed in the first installation space130and serves to primarily decompose ozone in an external gas flowing into the first installation space130, and includes a support formed in a porous structure, and a catalyst supported on internal pores or surface of the support. Here, the catalyst may include at least one of manganese dioxide and platinum.

The first ozone decomposition unit200reacts with the ozone contained in the gas flowing into the first ozone decomposition unit200through the inlet150to decompose the ozone into oxygen and oxygen radical as follows.

That is, the ozone contained in the gas flowing into the first ozone decomposition unit200through the inlet150is decomposed into oxygen by reacting with the catalyst of the first ozone decomposition unit200.

The second ozone decomposition unit300is installed in the second installation space140, serves to receive the gas primarily decomposed through the first ozone decomposition unit200and secondarily decompose the residual ozone in the gas, and includes a thermal conductor310formed to be bent a plurality of times, and a heat source (not illustrated) connected to the thermal conductor310to supply heat to the thermal conductor310.

The thermal conductor310is a member formed by bending a plate made of metal having a predetermined thickness a plurality of times, and is installed inside the first installation space130and receives heat from a heat source (not illustrated) connected to one side to generate heat. Ozone remaining in the gas is decomposed by the heat of the thermal conductor310, and resultant oxygen is discharged to the outside of the housing100through the outlet160.

TABLE 1Half-life of ozone at each temperatureTemperatureHalf-life−50°C.3months−35°C.18days−25°C.8days20°C.3days120°C.1.5hours250°C.1.5seconds

Table 1 above shows a half-life of ozone at each temperature, and the ozone is decomposed after about 1.5 hours at 120° C. and is decomposed after 1.5 seconds at 250° C. The second ozone decomposition unit300may adjust the temperature of the thermal conductor310according to an amount of residual ozone or an amount of ozone flowing into the housing100, and decomposes the ozone into oxygen using the heat of the thermal conductor310.

The amount of residual ozone or the amount of gas flowing into the housing100may be detected by a separate sensor.

As described above, the ozone in the gas flowing into the housing100is primarily decomposed by the first ozone decomposition unit200, and the residual ozone in the gas decomposed by the first ozone decomposition unit200is secondarily decomposed by the second ozone decomposition unit300, making it possible to shorten an ozone decomposition time and simultaneously decompose a larger amount of ozone.

FIG.3is a view illustrating an embodiment of the present disclosure, and in the embodiment of the present disclosure, a plurality of housings100, a plurality of first ozone decomposition units200, and a plurality of second ozone decomposition units300are provided, and the housings100in which the first ozone decomposition unit200and the second ozone decomposition unit300are installed are formed in a mutually stacked state.

In this case, the plurality of first ozone decomposition units200are formed to be disposed on the same vertical line, and the plurality of second ozone decomposition units300are also formed to be disposed on the same vertical line.

In this case, the auxiliary outlet151of the upper housing100may be connected to the inlet150of the lower housing100, and the outlet160of the upper housing100may be connected to the auxiliary inlet161of the lower housing100.

A case in which the cover110is formed only on the uppermost housing100is illustrated inFIG.3, and thus, even when the auxiliary inlet161is not present in the lower housing, the first installation space130of the upper housing100communicates with the first installation space130of the lower housing100, and the second installation space140of the upper housing100communicates with the second installation space140of the lower housing100.

In the embodiment of the present disclosure formed as described above, when the external gas flows into the inside through the inlet150of the uppermost housing100, the ozone in the external gas is primarily decomposed by the first ozone decomposition unit200. Thereafter, the second ozone decomposition unit300receives the primarily decomposed gas, secondarily decomposes the ozone, and discharges the decomposed oxygen through the lowermost outlet160.

Meanwhile,FIG.4is a view illustrating another embodiment of the present disclosure, and in the other embodiment of the present disclosure, a plurality of housings100, a plurality of first ozone decomposition units200, and a plurality of second ozone decomposition units300are provided, and the housings100in which the first ozone decomposition unit200and the second ozone decomposition unit300are installed are formed in a mutually stacked state.

In this case, the upper housing100and the lower housing100are formed so that left and right sides thereof are reversed and the first ozone decomposition unit200and the second ozone decomposition unit300are alternately disposed on the same vertical line.

In this case, the outlet160of the upper housing100may be installed to be connected to the inlet150of the lower housing100.

Since a case in which the cover110is formed only on the uppermost housing100is illustrated inFIG.4, the outlet160of the upper housing100may directly communicate with the first installation space130of the lower housing100.

In the other embodiment of the present disclosure formed as described above, an external gas flows into the inside through the inlet150of the uppermost housing100, ozone of the external gas is primarily decomposed by the first ozone decomposition unit200, and the second ozone decomposition unit300receives the primarily decomposed gas and secondarily decomposes the ozone. Then, the lower housing receives the decomposed gas and decomposes the ozone again through the first ozone decomposition unit200and the second ozone decomposition unit300. Thus, in the other embodiment of the present disclosure, since a process of decomposing the ozone is repeatedly performed, it is possible to greatly reduce an amount of ozone discharged without being decomposed.

The preferred embodiment of the ozone decomposition device according to the present disclosure has been described above.

It should be understood that the above-described embodiments are illustrative in all respects and not restrictive, and the scope of the present disclosure will be indicated by the claims to be described below rather than the above-described detailed description. It should be construed that all changes and modifications derived from the meaning and scope of the claims, as well as equivalent concepts thereof, are included in the scope of the present disclosure.