WO2019135456A1

WO2019135456A1 - Safety cabinet

Info

Publication number: WO2019135456A1
Application number: PCT/KR2018/007804
Authority: WO
Inventors: 신현주; 김상용
Original assignee: 주식회사 제이오텍
Priority date: 2018-01-03
Filing date: 2018-07-10
Publication date: 2019-07-11
Also published as: KR102004356B1; CN110662607B; KR20190083240A; CN110662607A

Abstract

Disclosed is a safety cabinet that stores hazardous materials such as acidic and basic materials, flammable materials, etc. The safety cabinet comprises: an outer housing having a door at the front thereof and comprising a plurality of outer walls; an inner housing having a plurality of inner walls forming an inner chamber for accommodating hazardous material inside the outer housing; an intake/exhaust duct disposed between the opposing back walls of the inner housing and the outer housing; and an intake port and an exhaust port which are installed on the top of the outer housing and connected to an intake/exhaust duct to the outside.

Description

Safety cabinet

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety cabinet, and more particularly to a safety cabinet capable of protecting a container for storing an acid base material, a flammable substance and the like, which is housed internally from external heat.

A cabinet for storing a safety cabinet used in a laboratory or the like, in particular, an acid base material or a flammable material, has an exhaust structure for discharging a dangerous substance gas generated from the inside to the outside. This exhaust structure has a structure in which the gas inside is discharged to the outside and fresh air is introduced from the outside.

In accordance with international standards, these safety cabinets must maintain the internal temperature from external flames below the natural ignition point for a certain period of time. This is because the chemical contained in the cabinet ignites at approximately 180 degrees, so the natural ignition point applied to the cabinet is 180 degrees. Such a cabinet should be maintained at a temperature lower than the natural ignition temperature for at least a predetermined time when the cabinet is exposed to external heat generated by a fire or the like.

Such a safety cabinet has a structure in which external air can be introduced into the cabinet, as described above. When a fire occurs through such an air inflow path, external heat or flame can be directly introduced into the cabinet.

The exemplary embodiment provides a safety cabinet in which external heat can effectively suppress the inflow of flames.

The exemplary embodiment provides a safety cabinet that can safely protect the interior from dangerous substances stored inside by safely protecting the interior from external heat or flames.

Safety cabinet according to the exemplary embodiment:

An outer housing having a front door and including a plurality of outer walls;

An inner housing having a plurality of inner walls forming an inner chamber for accommodating a hazardous material inside the outer housing;

An intake duct and an exhaust duct arranged side by side between the inner wall and the outer wall facing the inner housing and the outer housing;

An intake hole provided at one side of the inner housing for connecting the inner chamber to the intake duct;

An exhaust hole provided at one side of the inner housing to connect the inner chamber to the exhaust duct;

And an intake port and an exhaust port which are provided in parallel to the upper portion of the outer housing and connect the intake duct and the exhaust duct to an intake vent and an exhaust vent, respectively, connected to the outside.

According to an exemplary embodiment, a partition wall separating the intake duct and the exhaust duct from each other is provided between a rear wall of the outer housing and a rear wall of the inner housing.

According to another exemplary embodiment, the rear wall includes a plurality of plate members arranged side by side, and the partition wall partitioning the intake duct and the exhaust duct is formed by a substantially L-shaped flange portion formed on the plate member .

According to an exemplary embodiment, a cavity is provided on the upper portion of the inner housing, the cavity being isolated from the outside by an upper portion of the outer housing, and the cavity is divided into an intake chamber corresponding to the intake duct and an exhaust chamber connected to the exhaust duct. The intake chamber is connected to the intake port, and the exhaust chamber is connected to the exhaust port.

According to a more specific exemplary embodiment, the intake chamber and the exhaust chamber are provided between the ceiling surface of the inner housing and the ceiling surface of the outer housing, and the intake duct and the exhaust duct are disposed in the rear portion of the inner housing and the rear portion of the outer housing, .

According to an exemplary embodiment, the intake duct and the exhaust duct are provided by a rear space provided between the inner housing and the outer housing, and the intake duct and the exhaust duct are connected to the intake port and the exhaust port provided in the upper portion of the outer housing, The flame or the heat from the inside of the housing does not flow into the housing. That is, in the safety cabinet according to the exemplary embodiment, the chamber inside the safety cabinet is completely isolated from the interior space in which the safety cabinet is installed, thereby blocking or delaying the direct inflow of flame or heat into the inner housing, thereby protecting internal hazardous materials.

1 is an external perspective view of a safety cabinet according to an exemplary embodiment;

2 is a perspective view of a safety cabinet according to an exemplary embodiment of the present invention in a state in which a front door is opened.

Figure 3 schematically illustrates the back of a safety cabinet according to an exemplary embodiment.

4 is a schematic plan and sectional view showing the arrangement of ducts in a safety cabinet according to an exemplary embodiment;

Figure 5 shows the structure of the intake duct in the rear of the cabinet in a safety cabinet according to an exemplary embodiment.

FIG. 6 shows a planar forming structure of an exhaust duct in a safety cabinet according to an exemplary embodiment. FIG.

FIG. 7 schematically illustrates the intake and exhaust structure of a safety cabinet according to an exemplary embodiment.

8 is a schematic perspective view of a cabinet having a twin door according to another exemplary embodiment;

Fig. 9 shows the door of the cabinet shown in Fig. 8 opened.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. However, embodiments of the inventive concept may be modified in various other forms, and the scope of the present invention should not be construed as being limited by the embodiments described below. Embodiments of the inventive concept are desirably construed as providing a more complete understanding of the inventive concept to those skilled in the art. The same reference numerals denote the same elements at all times. Further, various elements and regions in the drawings are schematically drawn. Accordingly, the inventive concept is not limited by the relative size or spacing depicted in the accompanying drawings.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the inventive concept. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the expressions "comprising" or "having ", etc. are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, It is to be understood that the invention does not preclude the presence or addition of one or more other features, integers, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the inventive concept belongs, including technical terms and scientific terms. In addition, commonly used, predefined terms are to be interpreted as having a meaning consistent with what they mean in the context of the relevant art, and unless otherwise expressly defined, have an overly formal meaning It will be understood that it will not be interpreted.

2 is a schematic perspective view of a safety cabinet 10 showing the inside of the chamber 121 by opening the door 20; FIG. 2 is an exploded perspective view of the safety cabinet 10 according to an exemplary embodiment of the present invention; .

1 and 2, a front door 20 having a handle 21 is provided at a front portion of an outer housing (body) 11 of the safety cabinet 10.

An exhaust port 30 communicating with the inside of the outer housing 11 and an air inlet 31 are provided on an upper surface 111 of the outer housing 11.

An inner housing 12 is provided inside the outer housing 11 of the safety cabinet 10 to provide an inner chamber 121. The wall of the inner housing (12) is provided with a heat insulating material.

A plurality of

shelves

122, 122 and 122 are provided on the inner side of the inner housing 12. On the inner surface of the door (20), a heat insulating wall body (22) is fixed. The heat insulating wall 22 includes the above-mentioned refractory insulating plate, and the refractory heat insulating plate is provided on the wall of the inner housing 12.

A door check protection space 13 in which a door check 50 connected to the door 20 is accommodated is provided at an upper portion of the chamber 121 and an air inlet 30 and an air outlet 31 are provided at the rear of the protection space 13. [ An intake chamber 15a and an exhaust chamber 15b are provided. The door check 50 may be a fuse door check for locking the door 20 in the event of a fire. The intake port 30 and the exhaust port 31 penetrating the upper surface 111 of the outer housing 11 communicate with the inner chamber 121 of the inner housing 12 through an intake / .

Fig. 3 shows a rear view of the safety cabinet 10 having an inflow structure of outside air, and Fig. 4 is a plan sectional view of the safety cabinet 10. Fig. FIGS. 3 and 4 are monotonous representations of the structure of the intake duct 13 and the outer intake ports 112 and the inner intake ports 124 at both ends thereof in an exemplary embodiment.

3 and 4, an inner partition wall 114 is provided at a central portion of a rear surface 112 of the cabinet 10 in a vertical direction to connect the rear wall 112 of the outer housing 11 and the inner housing 12, An intake duct 14a and an exhaust duct 14b are formed in a space between the rear wall 123 of the main body portion 12b.

The rear wall 112 of the outer housing 11 includes two

rear plate members

112a and 112b and the partition wall 114 is formed of a substantially L shape provided at the joint of the

rear plate members

112a and 112b Is formed by a flange portion.

The partition wall 114 separates the space or cavity between the inner wall 123 of the inner housing 11 and the outer wall of the outer housing 12 into the intake duct 14a and the exhaust duct 14b do. The suction hole 113 and the exhaust hole 124 formed in the rear wall 123 of the inner housing 12 are exposed in the intake duct 14a and the exhaust duct 14b.

The intake hole 113 is formed above the rear wall 123 of the inner housing 12 so as to be introduced into the inner housing 12 through a short path of external air from the intake chamber 15a, Is formed on the lower side thereof. As a result, the airflow passing through the inner housing 12 forms a downward flow.

On the other hand, in the upper ceiling portion of the inner housing 12, a cavity closed by the upper portion of the outer housing 11 is provided. The cavity has an intake chamber 15a in which outside air temporarily stays, And is partitioned into a chamber 15b.

The intake chamber 15a connects the intake port 30 to the intake duct 14a and the exhaust chamber 15b connects the exhaust duct 14b to the exhaust port 31. [ That is, these intake chambers 15a and exhaust chambers 15b are the connection spaces between the intake / exhaust ducts and the intake / exhaust ports.

5 is a side view showing the structure of the intake duct 14a behind the cabinet 10 and FIG. 6 is a schematic plan view showing the structure of the exhaust duct 14b.

5 and 6, the intake holes 113 are formed above the rear wall 123 of the inner housing 12, and the exhaust holes 124 are formed below the intake holes 113, as described above. As a result, the airflow passing through the inner housing 12 forms a downward flow.

Meanwhile, the intake chamber 15a and the exhaust chamber 15b described above are provided above the intake duct 14a and the exhaust duct 14b. The intake / exhaust chamber is provided between the inner housing 12 and the ceiling of the outer housing 11, and the intake port 30 and the exhaust port 31 are connected to the intake / exhaust chamber. The intake port 30 and the exhaust port 31 are connected to the intake vent 101 and the exhaust vent 102 provided in the ceiling portion 100 of the indoor space.

That is, according to the exemplary embodiment, the

ducts

14a and 14b for intake and exhaust are provided in the cabinet, and the intake port 30 and the exhaust port 31 connected to the intake and exhaust ducts are connected to the ceiling of the cabinet Can be connected to the intake / exhaust vents (101, 102) outside the building being installed. Therefore, when a fire occurs indoors, flames or hot air outside the cabinet can not enter the cabinet inner chamber.

FIG. 7 schematically shows the structure of the intake and exhaust system according to the exemplary embodiment.

7, the flow of the intake and exhaust air is made by the intake duct 14a and the exhaust duct 14b on the rear surface of the inner housing 12, and the intake air holes 14a formed in the rear wall 123 of the inner housing 12 113 and the exhaust hole 124. In this case, An intake port 30 and an exhaust port 31, which are connected to the intake vent 101 and the exhaust vent 102, are provided on the upper portion of the inner housing.

In the event of a fire, hot flame vapors tend to rise to the top. This can cause flames or heat to escape into the chamber if the external air inlet is exposed from the cabinet body, which is inherently prevented in the exemplary embodiment. In addition, the duct provided on the rear side of the cabinet forms an air heat resistant layer which prevents the heat from the rear from being transmitted to the inside of the chamber.

In the event of a fire, hot flame vapors tend to rise to the top. In this case, when the intake port and the exhaust port are provided in the upper portion of the rear surface of the cabinet, there is no possibility that the flame vapor flows through the intake port and the exhaust port.

When a fire occurs from the outside, for example, when the front door is open, the door check is melted by the heat, so that the front of the chamber is closed by the operation of the door check and the outside air inlet and the inside And is blocked by the thermal expansion filter of the intake port. In this process, before the thermal expansion filter is sufficiently expanded, outdoor air or flame is prevented from being directly introduced into the inner chamber by the intake structure according to the above exemplary embodiment.

Fig. 8 is a schematic perspective view of a double-face cabinet as a twin-door type, and Fig. 9 is a perspective view of the door in an open state.

On the front portion of the outer housing (body) 11 of the safety cabinet 10, there is provided a single hinged door 20 having a handle 21 on both sides thereof. An exhaust port 30 connected to the inner chamber is provided at the upper center of the outer housing 11. 122 and 122 are provided on the inner side of the inner housing 12. The inner housing 12 is provided with an inner space or an inner heat insulating material for providing the chamber 121 in the outer housing 11, Respectively. A door check protection space 13 is provided at an upper portion of the chamber 121 to receive a door check 50 connected to the door 20. The door check 30 may be a fuse door check for locking the door 20 in the event of a fire. Further, a heat insulating wall body 22 is fixed to the inner side surface of the door 20. An air inlet 30 and an air outlet 31 are provided on the upper portion of the outer housing 11 to be connected to an intake / exhaust vent installed on the ceiling of the room. Such a side-by-side safety cabinet may also include an intake duct and an exhaust duct structure as described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. The present invention can be carried out in various ways. Therefore, modifications of the embodiments of the present invention will not depart from the scope of the present invention.

Claims

An outer housing having a front door and including a plurality of outer walls;

An inner housing having a plurality of inner walls forming an inner chamber for accommodating a hazardous material inside the outer housing;

An intake duct and an exhaust duct arranged side by side between the inner wall and the outer wall facing the inner housing and the outer housing;

An intake hole provided at one side of the inner housing for connecting the inner chamber to the intake duct;

An exhaust hole provided at one side of the inner housing to connect the inner chamber to the exhaust duct;

And an intake port and an exhaust port, which are provided on an upper portion of the outer housing and connect the intake duct and the exhaust duct to an intake vent and an exhaust vent, respectively, connected to the outside.
The method according to claim 1,

Wherein a partition wall separating the intake duct and the exhaust duct from each other is provided between a rear wall of the outer housing and a rear wall of the inner housing.
3. The method of claim 2,

Wherein the rear wall includes a plurality of plate members disposed in parallel with each other, and a partition wall partitioning the intake duct and the exhaust duct is formed by an L-shaped flange portion formed on the plate member.
The method according to claim 1,

Wherein the cavity is divided into an intake chamber corresponding to the intake duct and an exhaust chamber connected to the exhaust duct, wherein the intake chamber is divided into an intake chamber and an exhaust chamber, And the exhaust chamber is connected to the exhaust port.
3. The method of claim 2,

Wherein the cavity is divided into an intake chamber corresponding to the intake duct and an exhaust chamber connected to the exhaust duct, wherein the intake chamber is divided into an intake chamber and an exhaust chamber, And the exhaust chamber is connected to the exhaust port.
The method of claim 3,

Wherein the cavity is divided into an intake chamber corresponding to the intake duct and an exhaust chamber connected to the exhaust duct, wherein the intake chamber is divided into an intake chamber and an exhaust chamber, And the exhaust chamber is connected to the exhaust port.
5. The method of claim 4,

Wherein the intake chamber and the exhaust chamber are provided between a ceiling surface of the inner housing and a ceiling surface of the outer housing.
6. The method of claim 5,

Wherein the intake chamber and the exhaust chamber are provided between a ceiling surface of the inner housing and a ceiling surface of the outer housing.
The method according to claim 6,

Wherein the intake chamber and the exhaust chamber are provided between a ceiling surface of the inner housing and a ceiling surface of the outer housing.