KR102158589B1 - A centrifugal blower for an air curtain having a bidirectional suction passage - Google Patents

Abstract

The present invention relates to a centrifugal blower for an air curtain having a bi-directional suction passage, and more particularly, to a centrifugal blower for forming an air curtain for efficient smoke blocking in a fire zone, by forming a bidirectional suction passage on one or both sides. , Depending on the location of the fire zone, it is possible to selectively open the air blower in either the front or rear direction, so that a single device can form an air curtain that can quickly and easily block smoke regardless of the fire location. It relates to a centrifugal blower for an air curtain having a passage.

Description

A centrifugal blower for an air curtain having a bidirectional suction passage

The present invention is a centrifugal blower for an air curtain having a bidirectional suction passage that forms an air curtain that can spread and block smoke in a fire zone, but freely select the air intake direction before and after the fire zone. It is about.

As civil construction technology develops, various types of roads are being made, and among them, there are underpasses and tunnels (hereinafter, collectively referred to as "tunnels") for the purpose of shortening the length of the road.

Since these tunnels are built underground, it is difficult to enter and exit, and there are many difficulties in extinguishing fires, evacuation or ventilation. Therefore, there are fire hydrants, sprinklers, ventilation ducts for air circulation, and the like for fire suppression and evacuation, and an evacuation path for bypass is formed in the middle.

However, when a fire occurs in such a tunnel, the fire smoke easily propagates to other parts of the tunnel according to the flow of air, and there is a problem that people inside the tunnel are suffocated by the smoke or the view is blocked, making it difficult to evacuate.

Therefore, we are developing an airker system capable of delaying and blocking fire smoke volcanicity when a fire occurs in a railroad tunnel at a large depth or long road. However, such conventional air curtains for tunnels suck the air inside the tunnel and supply it back into the tunnel. Since it has a structure that forms an air curtain, it can prevent the propagation of flames, but it cannot prevent the propagation of toxic gases such as soot contained in the fire. Rather, there was a problem in that it played a role in encouraging the circulation of Hwa-yeon to increase the speed at which soot was spread.

In addition, depending on the type of motor or impeller, there may be an empty space in which the air curtain cannot be used at the installation location, and the sprayed wind cannot be uniformly sprayed from the impeller, or it is sprayed without maintaining straightness. There was also a problem.

In addition, if the air curtain is formed by inhaling fresh air outside the fire area when air is inhaled, the problem of increasing the fire occurs. Therefore, the air curtain must be formed by inhaling only contaminated air in the fire area. In the case of using an existing blower that sucks, a plurality of blowers must be installed in a pair before and after each time at the installation location of the tunnel, so the number of installation devices is doubled, resulting in an increase in installation and maintenance costs. there was.

Korean Registered Patent Publication No. 10-1745214 (registered on June 1, 2017)

The present invention was conceived to solve the above problems, and an object of the present invention is to minimize the spread of smoke during a tunnel fire to prevent disaster, and in the case of a blower for this purpose, a bidirectional suction passage is provided, By opening only the suction passage in the direction of the fire zone among the abundance of front and rear directions to form an air curtain through contaminated air, an air curtain can be selectively formed on both sides of the device installed using only a single device. It is to provide a centrifugal blower for an air curtain having a bi-directional suction passage.

Other objects and advantages of the present invention will be described below, and will be understood by examples of the present invention. Further, the objects and advantages of the present invention can be realized by means and combinations shown in the claims.

The present invention is a means for solving the above problems,

A blower 10 installed with an impeller rotated by the driving force of the motor to vertically inject the sucked air toward the ground to form an air curtain; It is installed in communication with one or both sides of the blower 10 to allow air to flow into the blower 10, but first and second opening and closing means (21, 22) are formed at the front and the rear respectively, and the fire zone One of the first and second opening and closing means (21, 22) is selectively opened according to the location of the fire zone so that the fire does not increase due to the inflow of outside air for the air curtain by inhaling only the polluted air inside to form an air curtain. , The blower 10, a bidirectional suction passage part 20 for selectively inhaling air from the front or the rear; It characterized in that it comprises a.

As described above, the present invention has the effect of being able to inhale air that can easily form an air curtain in either direction of both sides of the blower, regardless of the location of the fire, using only a single device.

In addition, the present invention can be installed in consideration of various tunnel fire environments, and thus there is an effect of enabling efficient fire smoke blocking according to the situation.

In addition, the present invention has the effect of not subject to installation restrictions, regardless of the tunnel size and ventilation method.

In addition, the present invention can significantly reduce the installation cost compared to the installation cost of the existing evacuation connection passage, jet fan, etc., and there is an effect of minimizing traffic congestion by shortening the construction period compared to the existing disaster prevention facilities.

In addition, the present invention has an effect that can be applied to various installation locations for preventing the spread of smoke and tunnels.

1 is a view of an embodiment showing an air curtain centrifugal blower having a bidirectional suction passage according to the present invention.
Figure 2 is a view of one embodiment showing the first and second opening and closing means according to the present invention.
Figure 3 is a state of use of an embodiment showing a state in which the centrifugal blower for an air curtain having a bidirectional suction passage according to the present invention is applied.

Before describing various embodiments of the present invention in detail, it will be appreciated that the application is not limited to the details of configurations and arrangements of elements described in the following detailed description or illustrated in the drawings. The present invention may be implemented and practiced in different embodiments and may be performed in various ways. Also, the device or element orientation (eg "front", "back", "up", "down", "top", "bottom" The expressions and predicates used herein with respect to terms such as ", "left", "right", "lateral"), etc. are used only to simplify the description of the present invention, and related devices Or you may find that the element simply indicates or does not mean that it should have a specific orientation. Further, terms such as “first” and “second” are used in this application and the appended claims for purposes of explanation and are not intended to represent or imply any relative importance or spirit.

The present invention has the following features to achieve the above object.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to describe 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.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

Looking at an embodiment according to the present invention,

A blower 10 installed with an impeller rotated by the driving force of the motor to vertically inject the sucked air toward the ground to form an air curtain; It is installed in communication with one or both sides of the blower 10 to allow air to flow into the blower 10, but first and second opening and closing means (21, 22) are formed at the front and the rear respectively, and the fire zone One of the first and second opening and closing means (21, 22) is selectively opened according to the location of the fire zone so that the fire does not increase due to the inflow of outside air for the air curtain by inhaling only the polluted air inside to form an air curtain. , The blower 10, a bidirectional suction passage part 20 for selectively inhaling air from the front or the rear; It characterized in that it comprises a.

In addition, it is formed with air curtains on both sides of the fire zone in the tunnel to delay and block the spread of flames and smoke, and a plurality of them are installed at the top of the tunnel in the width direction at each preset distance in the tunnel. do.

In addition, when the blower 10 and the bidirectional suction passage part 20 are alternately continuously installed, the bidirectional suction passage part 20 is all open at the same time, or only the preselected bidirectional suction passage part 20 It is characterized by being openable.

In addition, the first and second opening and closing means (21, 22) is a first structure in which a plurality of covers 30 continuously installed in the longitudinal direction are rotated and opened by a hinge means, or the cover 30 is vertically It is installed to be slidable and is characterized in that it is one of the second structures to be opened.

In addition, the blower 10 is characterized in that any one of centrifugal blower types is used.

Hereinafter, a centrifugal blower 100 for an air curtain having a bidirectional suction passage according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

The centrifugal blower 100 for an air curtain having a bidirectional suction passage of the present invention includes a blower 10 and a bidirectional suction passage 20.

The blower 10 has a motor and an impeller rotated by the motor installed therein to inject the sucked air toward the ground at a preset angle to form an air curtain.

In the case of the blower 10, any type of centrifugal blower that sucks air from both sides of the impeller and allows air to be sprayed at a right angle through the lower end of the blower 10 can be used, so the type of blower to be used It is not limited and can be used.

The blower 10 for this purpose has a structure that is alternately continuously installed with the bidirectional suction passage 20 to be described later, thereby forming an air curtain by spraying wind toward the ground from both sides of the fire zone in the tunnel, It is to be able to delay and block the spread of smoke, and according to the user's embodiment, at each preset distance interval in the tunnel, a plurality of them are installed correspondingly in the width direction above the tunnel.

The bidirectional suction passage part 20 is installed in communication with one or both sides of the above-described blower 10 to allow air to flow into the air blower 10, but facing the front and rear directions of the tunnel to be installed. The first and second opening and closing means 21 and 22 are formed on the front and rear sides, respectively.

This bidirectional suction passage part 20 forms an air curtain by inhaling only contaminated air in the fire zone, so that the fire does not increase due to the inflow of outside air for the air curtain, depending on the location of the fire zone, the first and second opening and closing means ( One of 21 and 22) is selectively opened to allow selective suction of air from the front or rear of the blower 10.

That is, depending on the location of the fire, only one of the first opening and closing means 21 and the second opening and closing means 22 is opened and used.

Of course, in the case where the blower 10 and the bidirectional suction passage 20 are alternately continuously installed in the width direction of the upper part of the tunnel, according to the size of the fire or according to various selections of the user, the blower 10 Among the front and rear sides, a plurality of the bidirectional suction passages 20 in the direction to be opened are all open at the same time, or only the preselected bidirectional suction passage units 20 may be selectively opened.

Of course, it is natural that the plurality of air blowers 10 are rotated by a single motor or a plurality of motors, and impellers rotated by the same motor are connected to each other by a rotation shaft.

In addition, in the case of the above-described first and second opening and closing means (21, 22), a plurality of covers 30 continuously installed in the longitudinal direction have a first structure that is rotated and opened by a hinge means, or the cover 30 It is installed to be able to slide virtually up and down, and a second structure that can be opened can be used.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those of ordinary skill in the technical field to which the present invention pertains. It goes without saying that various modifications and changes are possible within the equivalent range of the claims to be described.

10: blower
20: bidirectional suction passage
21: first opening and closing means
22: second opening and closing means
30: cover

Claims (5)

A blower 10 installed with an impeller rotated by the driving force of the motor to vertically inject the sucked air toward the ground to form an air curtain;
It is installed in communication with one or both sides of the blower 10 to allow air to flow into the blower 10, but first and second opening and closing means 21 and 22 are formed at the front and rear sides, respectively,
One of the first and second opening and closing means (21, 22) is selectively selected depending on the location of the fire zone so that the fire does not increase due to the inflow of outside air for the air curtain by inhaling only the contaminated air in the fire zone to form an air curtain. A bidirectional suction passage part 20 which is opened and allows selective suction of air from the front or rear of the blowing part 10; It is made including,
Air curtains are formed on both sides of the fire zone in the tunnel to delay and block the spread of flames and smoke, and at each preset distance in the tunnel, a number of them are installed in the width direction at the top of the tunnel.
When the blower 10 and the bidirectional suction passage 20 are alternately continuously installed,
A plurality of the bidirectional suction passage units 20 are all open at the same time, or only the preselected bidirectional suction passage units 20 can be opened,
The first and second opening and closing means (21, 22)
A plurality of covers 30 continuously installed in the longitudinal direction are either a first structure that is rotated and opened by a hinge means, or one of a second structure in which the cover 30 is installed to be slidable up and down, and is opened. ,
The blower 10 is a centrifugal blower for an air curtain having a bidirectional suction passage, characterized in that any one of the centrifugal blower types is used.
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