KR20210006789A - Harmful gas diffusion prevention device for urban sewer - Google Patents

Abstract

The present invention relates to a harmful gas diffusion prevention device for an urban sewer. The harmful gas diffusion prevention device for an urban sewer comprises: a case; an intake unit installed at an upper portion of the case to inhale external air; an intake pipe to receive the external air before treatment of the intake unit; a photochemical oxidation treatment unit installed at a lower portion inside the caste to purify the external air from the intake unit; and a discharge pipe to receive the external after treatment of the photochemical oxidation treatment unit. The photochemical oxidation treatment unit includes a plurality of vertical treatment modules connected in series to each other. An external air flow inside the photochemical oxidation treatment unit is a downflow scheme from a top to bottom. Therefore, the harmful gas diffusion prevention device for an urban sewer has an intake function and a photochemical oxidation function, maximizes efficiencies of the intake function and the photochemical oxidation function. It is easy to perform construction and maintenance. The present invention may minimize performance reduction of a device due to photochemical oxidation reaction by-product with respect to exhausted harmful gas and secondary pollution to be favorably applied to an urban sewer specially.

Description

Harmful gas diffusion prevention device for urban sewage pipes {HARMFUL GAS DIFFUSION PREVENTION DEVICE FOR URBAN SEWER}

The present invention relates to a device for preventing the diffusion of harmful gas, and more particularly, to a device for preventing the diffusion of harmful gas into the atmosphere by forming a negative pressure in a sewage pipe provided in an underground or high-rise building in an urban area.

In general, a sewage pipe used for transport or storage treatment of contaminated fluids such as sewage is installed in an underground or building in a city center. The sewage pipes of underground or high-rise buildings in the city center (hereinafter referred to as'city-center type sewage pipes') are equipped with various types of openings that communicate with outside air such as the atmosphere or indoors, and odors and toxic substances generated from polluted fluids in the sewage pipes. There is a problem in that noxious gas including the is discharged to the atmosphere in the living space of the city or the interior of the building through the opening.

As one of the methods for suppressing the emission of harmful gases to the outside from closed pipes such as sewage pipes buried underground in urban areas, the present inventors, in Korean Patent No. 10-1152571,'photochemical deodorization connected to the sewage pipes. A method of suppressing the discharge of odors to the outside by forming a negative pressure inside the sewage pipe by using the'intake device' attached thereto along with the removal of odors using the'device' has been disclosed.

However, in forming the negative pressure in the sewage pipe, if the length is hundreds to thousands of meters, like an urban sewage pipe, a large-capacity intake device is required in proportion to the total intake air volume, and this large-capacity intake device is accompanied by a large installation area and large operation. Since it emits noise and high-speed exhaust air volume, when it is applied to urban sewage pipes, there are many restrictions on the installation location due to its characteristics.

On the other hand, in order to be installed in an arbitrary living space such as a road, a stop, a park, or the roof of a building in the city, not in an isolated place, photochemical oxidation is used to remove odors from the exhaust air volume in addition to the simple intake function. Since the function is inevitably provided, and in this case, several parts and elements that are responsible for the intake function and optical oxidation function are required, the device is designed and designed to facilitate installation and maintenance while maximizing the efficiency for each function. Driving style should be done.

Furthermore, with regard to the design and operation method of these devices, the characteristics of harmful gases discharged from urban sewage pipes should be considered. In other words, among the harmful gases discharged from urban sewage pipes, hydrogen sulfide and ammonia in particular are converted into by-products such as ammonium sulfate, ammonium sulfite, and ammonium nitrate by photochemical oxidation reactions, and these photochemical oxidation by-products act as scales inside the device and perform performance. In addition, since it acts as a secondary pollutant as a fine dust-causing material by scattering into the atmosphere as well as hindering, it is necessary to devise a plan to minimize this problem in the design and operation of the device.

Korean Patent No. 10-1152571

An object of the present invention is an apparatus for preventing the diffusion of harmful gas for sewage pipes having an intake function and a photochemical oxidation function, which maximizes the efficiency of each function, and at the same time, it is easy to install and maintain. It is possible to minimize the performance degradation and secondary pollution of the device due to the chemical oxidation reaction dispersion, and to provide a device for preventing the diffusion of harmful gases that can be advantageously applied to urban sewage pipes.

The inventors, etc., in the process of researching and developing a device for preventing the diffusion of harmful gases for urban sewage pipes related to the above-described problem, in order to solve construction restrictions due to a large-area installation location, large operating noise, and high-speed exhaust air volume, It is necessary to minimize the volume by designing a diffusion prevention device equipped with an intake function and photochemical oxidation function to be installed at any place in the city center, and to install multiple such diffusion prevention devices in the planned area. Was found. Under this knowledge, with regard to the design and operation method of the excursion device, a) a modular type using a common socket for the element that performs the intake function can be controlled with the minimum ventilation amount and the element that performs the photochemical oxidation function. By adopting a treatment unit, it is configured to maximize the efficiency of each function.In particular, b) a photooxidation function to minimize the performance degradation and secondary pollution of the device due to photochemical oxidation reaction dispersions while minimizing the volume of the device. A method has been introduced in which the modular processing units to be executed are arranged in a'vertical type' and the airflow flowing through the modular processing unit is operated in a'downflow type'. The present invention was completed by further specifying the detailed structure of the component elements to facilitate the construction and maintenance of the diffusion preventing device without impairing the aesthetic sense based on these knowledge and focus, the gist of which is the same as described in the claims. Below is the content.

(1) case; An intake unit installed on the upper part of the case to suck in external air; A suction pipe through which external air is conveyed to the intake unit before treatment; A photochemical oxidation treatment unit installed below the case and purifying external air delivered by the intake unit; And a discharge pipe through which external air is transported after treatment from the photochemical oxidation treatment unit, wherein the photochemical oxidation treatment unit includes a plurality of treatment modules arranged vertically and connected in series, inside and outside the photochemical oxidation treatment unit Noxious gas diffusion prevention device for urban sewage pipes, characterized in that the air flow is a downward flow type consisting of top to bottom.

(2) The apparatus for preventing the diffusion of harmful gases for urban sewage pipes according to the above (1), further comprising a loading unit supporting a lower end of the photochemical oxidation treatment unit.

(3) The loading unit has an internal space communicating with the photochemical oxidation treatment unit. The apparatus for preventing the diffusion of harmful gases for urban sewage pipes according to the above (2).

(4) The internal space is provided as a space for collecting by-products resulting from the photochemical oxidation reaction. The apparatus for preventing the diffusion of harmful gases for urban sewage pipes according to the above (3).

(5) The apparatus for preventing the diffusion of harmful gas for urban sewage pipes according to (3), characterized in that it is provided in the inner space as a storage tank for wet treatment.

(6) The device for preventing the diffusion of harmful gases for urban sewage pipes according to the above (2), wherein the loading unit is provided with a roller so that the photochemical oxidation processing unit can be carried out integrally.

(7) A base unit fixed to the ground and supporting the main body of the harmful gas diffusion prevention device, wherein the base unit provides a connection point between a connection pipe communicating with an urban sewage pipe and a lower end of the suction pipe. The device for preventing the diffusion of harmful gases for urban sewage pipes of (1).

(8) The suction pipe has a structure in which the lower end of the suction pipe is in communication with the urban sewage pipe and the upper end of the suction pipe is in communication with the external atmosphere, and the lower end or the upper end of the suction pipe is opened according to the operating environment, and external air is introduced. The device for preventing the diffusion of harmful gases for urban sewage pipes of (1) above.

(9) The apparatus for preventing the diffusion of harmful gas for urban sewage pipes according to (1), further comprising a separation plate for separating the inside of the case into upper and lower spaces and mounting the intake unit.

(10) The apparatus for preventing the diffusion of harmful gas for urban sewage pipes according to (1), further comprising a ventilation amount controller that controls the air volume of the intake unit based on a standard table provided according to the operating environment at the installation site.

(11) The system for preventing the diffusion of harmful gas for urban sewage pipes according to the above (10), wherein the standard table is remotely transmitted from the outside to the ventilation amount controller.

As described above, according to the diffusion preventing device according to the present invention, the efficiency can be maximized by controlling the intake unit to the minimum ventilation amount and configuring the photochemical oxidation treatment unit as a modular treatment unit using a common socket, and photochemical oxidation treatment The arrangement and operation of the unit are vertical downward flow type, and the construction and maintenance are easy through detailed design of the component elements including the loading unit, etc., and the device due to the photochemical oxidation reaction dispersion of the emitted harmful gas It can be particularly advantageously applied to urban sewage pipes as it can minimize the performance degradation and secondary pollution of

1 is a perspective view of a harmful gas diffusion prevention apparatus according to an embodiment of the present invention.
Figure 2 is a partially opened perspective view of the harmful gas diffusion prevention device of Figure 1;
3 and 4 are cross-sectional structural diagrams of a harmful gas diffusion prevention device.
5 is a conceptual diagram of maintenance of a harmful gas diffusion prevention device.
6 is a perspective view of a loading unit according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail through examples. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention. Therefore, the configuration of the embodiments described in the present specification is only one of the most preferred embodiments of the present invention, and does not represent all the technical spirit of the present invention, and various equivalents that can replace them at the time of filing of the present invention It is to be understood that there may be variations and variations. On the other hand, in the drawings, the same or similar reference numbers are given to the same or equivalent material, and in the entire specification, when a certain part "includes" a certain component, this is another component unless otherwise stated. It does not mean that other components may be further included. In addition, when a certain configuration is "not limited" to a specific embodiment, it means that it can be applied by being substituted or substituted with an equivalent for the corresponding embodiment.

First, the diffusion preventing device 10 according to the present invention is intended to be applied to an urban sewage pipe, and this urban sewage pipe includes a horizontal sewage pipe buried underground as well as a vertical sewage pipe in a high-rise building. In addition, the diffusion preventing device 10 is designed as a picnic volume to minimize the volume, operation noise, and exhaust air volume of the device, and is a planned area, that is, an area requiring prevention of harmful gas diffusion. It is intended to be provided and installed in any place. In addition to the function of exhausting the internal air of the sewage pipe, the diffusion preventing device 10 includes a function of purifying the air sucked from the sewage pipe or around the device, and such a purifying function is intended to be achieved by a photochemical oxidation function in particular.

1 is a perspective view of a harmful gas diffusion preventing device 10 (hereinafter referred to as a'diffusion preventing device 10') according to an embodiment of the present invention, and FIG. 2 is a partially opened perspective view of the diffusion preventing device 10, 3 and 4 are cross-sectional structural diagrams of the harmful gas diffusion prevention apparatus 10, FIG. 5 is a maintenance conceptual diagram of the diffusion prevention apparatus 10, and FIG. 6 is a perspective view of a loading unit according to an embodiment of the present invention. . The diffusion preventing device 10 according to the embodiment has a case 100, an intake unit 200, a suction pipe 400, a photochemical oxidation treatment unit 300, and an discharge pipe 500 as a basic configuration, and a base unit 700 ), a loading unit 600, a separation plate 800, and a ventilation amount controller may be optionally further included.

The case 100 constitutes the main body and exterior of the device, and in the embodiment, the cross section of the case 100 is illustrated as an octagonal structure during multi-angle casting. It is advantageous in minimizing the volume of the device by improving space utilization when the case 100 has an octagonal structure, as well as improving the aesthetics, as well as improving the space utilization when accommodating accessories inside or installing an urban area.

In the embodiment, the case 100 is divided into an upper case 110 and a lower case 120, and is flange-coupled by a separating plate 800 selectively provided therebetween. The inside of the case 100 is divided into upper and lower spaces by the separation plate 800, and the intake unit 200 is mounted on the upper surface of the separation plate 800. The separation plate 800 is provided with a perforated portion so that the suction pipe 400 and the discharge pipe 500 can be conduited.

The upper space of the case 100 is used as a mounting space for a ventilation amount controller (not shown) that can be selectively provided to control it together with the intake unit 200, and the lower space is a photochemical oxidation treatment unit 300 ) Are each used as a mounting space. Accordingly, vibration caused by the operation of the intake unit 200 is transmitted to the lower space to a minimum, and since the position is high from the ground, inconvenience due to the operation noise can be minimized. In addition, due to the upper and lower arrangement structure of the intake unit 200 and the case 100 of the photochemical oxidation treatment unit 300, the blowing flow by the intake unit 200 is in a downward flow manner within the photochemical oxidation treatment unit 300. It will operate and will be described in detail below.

In addition, the case 100 may be manufactured in a manner of assembling after bending molding using a sus material or the like. The upper case 110 and the lower case 120 are basically sealed structures, and a separate hinge-type opening and closing door may be provided for each of the inner component elements for installation and maintenance. In the upper case 110, one end of the suction pipe 400 and the end of the discharge pipe 500 are exposed, and the side thereof is drilled in the form of a grill so that the purified air can be discharged while passing through the photochemical oxidation treatment unit 300 Has been. In addition, an LED lighting lamp (not shown) may be installed at the boundary between the upper case 110 and the lower case 120 for decoration or warning purposes.

The intake unit 200 may be provided as an intake motor fan, etc., and one end of the intake unit 200 is connected to a suction pipe 400 and the other end is connected to a photochemical oxidation treatment unit 300 to flow through the suction pipe 400. The external air is transferred to the photochemical oxidation treatment unit 300 for purification. The connection between the intake unit 200 and the photochemical oxidation treatment unit 300 may be made using a detachable canvas or a separate clamp 900A. The intake unit 200 is basically related to a function of exhausting a part of the air inside the sewage pipe based on the urban sewage pipe. That is, by inhaling the internal air of the urban sewage pipe and creating a relative negative pressure with respect to the inside of the sewage pipe, it plays a role of suppressing the emission of harmful gases inside the sewage pipe into the atmosphere through openings such as rainwater trays and drains. Inflow of external air through the suction pipe 400 is made through the suction pipe 400, and the introduced external air is transported to the photochemical oxidation treatment unit 300.

When the external air sucked by the intake unit 200 is the air inside the urban sewage pipe, the exhaust air volume by the intake unit 200 is the minimum ventilation amount sufficient to form a negative pressure inside the urban sewage pipe to maximize operation and energy efficiency. It is desirable to be controlled to operate as a. Specifically, the exhaust air volume for the urban sewage pipe by the intake unit 200 may be determined according to the ventilation amount calculation equation disclosed in Korean Patent No. 10-175194 of the present applicant. That is, when there is no forced exhaust for the urban sewage pipe, the maximum value is determined as the standard flow rate by comparing the reverse velocity value of the natural positive pressure flow rate according to the temperature difference, concentration difference, pipe drop, and chimney effect. After allocating the flow rates in one main pipe and a plurality of branch pipes provided in the sewage pipe, basically, the sum of the flow rate for the main pipe and the flow rate for the plurality of branch pipes is calculated as the intake unit 200 It can be determined by the amount of ventilation by, and details of the calculation of the amount of ventilation disclosed in Korean Patent No. 10-175194 may be referred to as part of the present invention.

In order to control the exhaust air volume inside the urban sewage pipe by the intake unit 200, although not shown in the drawing, a ventilation volume controller for controlling the air volume of the intake unit 200 may be optionally further included. Such a ventilation amount controller may be installed adjacent to the intake unit 200 of the upper case 110 and electrically connected thereto. In this case, the standard table for the natural positive pressure flow rate according to the temperature difference, the concentration difference, the drop in the pipe, the chimney effect, etc., which are the criteria for calculating the standard flow rate of the Korean Patent No. 10-175194 described above, is the diffusion prevention device 10 It is provided individually according to the operating environment at the installation site, and may be directly input to the ventilation amount controller at the site or may be transmitted remotely from the outside using a transmission/reception unit provided in the ventilation amount controller.

On the other hand, the external air sucked by the intake unit 200 is scheduled to be air in the urban sewage pipe as described above, but may be external air around the harmful gas device through the suction pipe 400 structure as described below, Accordingly, the use of the diffusion preventing device 10 is advantageous in that it can be used or expanded to purify the surrounding air or remove fine dust in addition to blocking the natural harmful gas. In other words, when the environment changes such as weather or temperature at the installation site and there is no naturally occurring positive pressure flow rate from the urban sewage pipe, the operation of the intake unit 200 is unnecessary, but there is fine dust or pollutants in the external air around the device. In this case, it may be sucked and transferred to the photochemical oxidation treatment unit 300 to perform a function of purification.

The suction pipe 400 serves as a passage through which external air is conveyed to the intake unit 200 before treatment. The suction pipe 400 is disposed in the longitudinal direction inside the case 100, and in this case, it is installed across the inner spaces of the upper case 110 and the lower case 120 through the perforated portion of the separation plate 800. The suction pipe 400 has a structure in which a lower end thereof is in communication with an urban sewage pipe and an upper end thereof is in communication with an external atmosphere, and a lower end of the suction pipe 400 using a conventional means such as a damper (not shown) depending on the operating environment. Alternatively, the upper end may be opened to allow external air to be introduced. In the embodiment, the upper end of the suction pipe 400 is exposed outside the upper case 110, and the lower end is connected to a connection point of the base unit 700 selectively provided in the device, thereby communicating with the urban sewage pipe. The connection at the connection point between the suction pipe 400 and the base unit 700 can be detached from the canvas or a separate clamp 900B.

The photochemical oxidation treatment unit 300 is related to a function of purifying external air delivered by the intake unit 200 and may be configured using a plurality of treatment modules. The configuration of the plurality of processing modules is excellent in processing capacity and efficiency per volume, easy to manufacture, install, and maintain, and allows easy selective adjustment in terms of quantity or direct cutting of operation contents. For example, Korean Patent No. 10- It can be implemented in the manner disclosed in 1783407. That is, in the configuration of the photochemical oxidation treatment unit 300, a plurality of processing units 300 are manufactured in a modular form using a common socket, and the plurality of processing units 300 are combined to have an independent continuous flow path. The modular processing unit 300 using a common socket disclosed in Korean Patent No. 10-175194, that is, details of the processing module may be referred to as part of the present invention.

Meanwhile, the photochemical oxidation processing unit 300 is characterized in that a plurality of processing modules are connected in series in a particularly'vertical type'. In addition, the intake unit 200 is disposed above the photochemical oxidation treatment unit 300 and communicates with the configuration related to the vertical arrangement of the plurality of treatment modules constituting the photochemical oxidation treatment unit 300. Another feature is that the flow of external air in the photochemical oxidation treatment unit 300 is a'downstream' made from top to bottom.

Specifically, the installation area can be minimized by arranging the plurality of processing modules vertically, and accordingly, even in an arbitrary narrow and constrained space such as an indoor space as well as a road, a stop, a park or a building roof in a city center. It is possible to sufficiently install the diffusion preventing device 10 without any restrictions, and it is possible to minimize aesthetic discomfort. In addition, by arranging a plurality of processing modules in a vertical type and making the air flow inside them in a downward flow type, especially hydrogen sulfide and ammonia among them are ammonium sulfate and ammonium sulfite due to photochemical oxidation reactions due to the characteristics of harmful gases discharged from urban sewage pipes. , Even if by-products such as ammonium nitrate are generated, the scale on which these by-products are deposited is easily dropped to the lower end of the processing module by the same air flow and the direction of gravity settling, and thus the performance decreases as the scale adheres to the interior of the processing module. This phenomenon can be minimized, and at the same time, the problem of acting as a secondary pollutant as a fine dust-causing material can be minimized by scattering the corresponding by-product into the atmosphere through the discharge pipe 500 to be connected to the rear end thereof. As will be described later, the scale or particulate matter that has fallen to the bottom of the rear end of the processing module may be collected and taken out using the optional loading unit 600.

In the case of vertical arrangement of other plurality of processing modules, gas tightness can be improved even if there is no separate fastening means in the coupling part between modules due to the cumulative load, and as described below, the gas tightness can be improved. If so, it may be easier to take it out outside for installation and maintenance.

The discharge pipe 500 serves to transport the external air processed by the photochemical oxidation treatment unit 300 to the atmosphere around the device. In the embodiment, the discharge pipe 500 is illustrated as being provided in a pair on each side of a plurality of processing modules arranged vertically. The discharge pipe 500 is disposed in the longitudinal direction inside the case 100 like the indentation pipe, and passes through the perforated portion of the separation plate 800 and crosses the inner space of the upper case 110 and the lower case 120. Installed. In this case, the use of space for installation and accommodation of the discharge pipe 500 may be maximized by the multi-angled octagonal structure of the case 100. The lower end of each discharge pipe 500 is connected to both sides of the lower part of the photochemical oxidation treatment unit 300, specifically the loading unit 600, which will be described later, and the connection can be detached from the canvas or a separate clamp (900C). Do. The upper end of each discharge pipe 500 is collected as one common pipe to discharge the processed air outside the upper case 110.

The diffusion preventing device 10 may further include a base unit 700 fixed to the ground and supporting the main body of the harmful gas diffusion preventing device 10. The base unit 700 is characterized in that it provides a connection point between a connection pipe 710 communicating with an urban sewage pipe and a lower end of the suction pipe 400. By installing the diffusion prevention device 10 via the base unit 700, the surrounding environment is damaged or the aesthetics is deteriorated due to exposure to the outside of the pipe, especially in the case of applying for urban sewage pipes buried underground. You can minimize the problem.

In addition, the diffusion preventing device 10 may further include a loading unit 600 supporting the lower end of the photochemical oxidation treatment unit 300. The loading unit 600 is basically provided for the purpose of facilitating the installation and maintenance of the photochemical oxidation treatment unit 300 as described above, and diversifying the use of the diffusion preventing device 10 as a whole. According to the embodiment, a roller 620 is provided at the lower end of the loading unit 600 so that the photochemical oxidation treatment unit 300 can be carried out integrally while being loaded. The roller 620 of the loading unit 600 is configured to be guided according to a guide frame provided on the upper surface of the base unit 700 described above. In addition, an internal space 610 communicating with the photochemical oxidation treatment unit 300 is provided, and the lower end of the discharge pipe 500 is connected to the sidewall of the internal space 610 through a canvas or a separate clamp, and the internal space ( A passage 630 through which entry into the inner space 610 can be entered is provided in the center of the side wall 610. The passage 630 is sealed with a cap.

In the case of maintenance of the photochemical oxidation treatment unit 300 using the loading unit 600, open the opening and closing door of the lower case 120, and then first connect the sidewall of the loading unit 600 and the lower end of the discharge pipe 500 The canvas or clamp is separated, and the canvas or clamp connecting the lower end of the intake unit 200 and the upper end of the photochemical oxidation treatment unit 300 is separated. In this state, the loading unit 600 can be carried out to the outside in an ecological manner in which a plurality of vertically arranged processing modules are loaded, and maintenance work such as cleaning or replacement of the processing modules can be easily performed.

From the viewpoint of diversifying the overall use of the diffusion preventing device 10 using the inner space 610, for example, the inner space 610 may be used as a space for collecting by-products resulting from a photochemical oxidation reaction. That is, as described above, by-products generated by the photochemical oxidation reaction may fall to the lower end of the processing module and be collected in the inner space 610 of the loading unit, and the collected by-products may be collected in the inner space 610 at the center of the side wall of the space. It can be easily removed by using a dust collector such as a vacuum suction device as the passage 630 that can enter into. In addition, as another example of use of the inner space 610, it may be used as a storage tank for the purpose of controlling the relative humidity of exhaust air or wet treatment of external inflow air and foreign matters in an environment in which water is available.

As described above, according to the diffusion preventing device 10 according to the present invention, by controlling the intake unit 200 to the minimum ventilation amount and configuring the photochemical oxidation treatment unit 300 as a modular treatment unit 300 using a common socket. Its efficiency can be maximized, and the arrangement and operation of the photochemical oxidation treatment unit 300 are made vertical downward flow, and construction and maintenance are possible through detailed design of parts elements including the loading unit 600, etc. It is easy and it is possible to minimize the secondary pollution and deterioration of the device due to the photochemical oxidation reaction dispersion for the discharged harmful gas, so it can be particularly advantageously applied to urban sewage pipes. In addition, the use of the diffusion preventing device 10 is advantageous in that it can be used or expanded to purify the surrounding air or remove fine dust in addition to blocking the natural harmful gas.

The above description relates to specific embodiments of the present invention. As described above, the above embodiments according to the present invention are disclosed for purposes of explanation and are not understood to limit the scope of the present invention, and those of ordinary skill in the art will not depart from the essence of the present invention. No, it should be understood that various changes and modifications are possible. Accordingly, all such modifications and changes may be understood to correspond to the scope of the invention disclosed in the appended claims or their equivalents.

10: Noxious gas diffusion prevention device
100: case
110: upper case
120: lower case
200: intake unit
300: photochemical oxidation treatment unit
400: suction pipe
500: discharge pipe
600: loading unit
610: internal space
620: roller
630: passage
700: base unit
710: connecting pipe
800: separation plate
910A, 900B, 900C: Canvas or clamp

Claims (11)

case;
An intake unit installed on the upper part of the case to suck in external air;
A suction pipe through which external air is conveyed to the intake unit before treatment;
A photochemical oxidation treatment unit installed below the case and for purifying external air delivered by the intake unit; And
Includes; a discharge pipe through which external air is transported after treatment from the photochemical oxidation treatment unit,
In the photochemical oxidation treatment unit, a plurality of treatment modules are vertically arranged and connected in series, and the photochemical oxidation treatment unit is a downward flow type in which external air flow in the photochemical oxidation treatment unit is formed from top to bottom. Prevention device.
The apparatus of claim 1, further comprising a loading unit supporting the lower end of the photochemical oxidation treatment unit.
The apparatus of claim 2, wherein the loading unit is provided with an inner space communicating with the photochemical oxidation treatment unit.
[4] The apparatus of claim 3, wherein the inner space is provided as a space for collecting by-products from photochemical oxidation reactions.
The apparatus of claim 3, wherein the inner space is provided as a storage tank for wet treatment.
[3] The apparatus of claim 2, wherein the loading unit is provided with a roller so that the photochemical oxidation treatment unit can be carried out integrally while being loaded.
The method of claim 1, further comprising a base unit fixed to the ground to support the main body of the harmful gas diffusion preventing device, wherein the base unit provides a connection point between a connection pipe communicating with an urban sewage pipe and a lower end of the suction pipe. A device for preventing the diffusion of harmful gases for urban sewage pipes, characterized in that.
According to claim 1, the suction pipe has a structure in which the lower end of the suction pipe is in communication with the urban sewage pipe and the upper end of the suction pipe is in communication with the external atmosphere. A device for preventing the spread of harmful gas for urban sewage pipes.
The apparatus of claim 1, further comprising a separation plate for separating the inside of the case into upper and lower spaces and mounting the intake unit.
The apparatus of claim 1, further comprising a ventilation amount controller that controls the air volume of the intake unit based on a standard table provided according to an operating environment at the installation site.
11. The apparatus of claim 10, wherein the standard table is transmitted to the ventilation amount controller remotely from the outside.

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