KR102551777B1 - The duct pipe connector for the fire diffusion prevention equipped with the fireproof insulation damper - Google Patents

Abstract

The present invention relates to a duct pipe connector for preventing fire spread having a fire prevention and insulation damper, and more particularly, to prevent the spread of fire by flame penetrating through an exhaust duct of a building when a fire breaks out in a building. It relates to a duct pipe connector for preventing fire spread having a fire insulation damper installed through a bulkhead.
In the duct pipe connector 1 for preventing fire spread with a fire prevention and insulation damper according to the present invention, a heat conduction delay hole made of long holes of a predetermined size is selected from one end area or both end areas of the outer circumferential surface of the damper room 100 ( 101) are spaced apart from each other at a predetermined interval and pass through in series or more than a plurality of rows. (101) The central part is through-holes to cross each other, and the outer circumferential surfaces of the damper room 100 and the left and right flame chambers 200 and 200' are coated with ceramic wool sheets sw of a predetermined thickness, and the left and right exhaust The outer circumferential surfaces of the duct connecting rooms 300 and 300' are coated with a flame retardant PE foam sheet (p) of a predetermined thickness, and an aluminum film (af) of a predetermined thickness is coated on the outside of the entire covering body as described above. In the duct pipe connector for preventing fire spread having a fire prevention and insulation damper that is bent, the duct pipe connector for preventing fire diffusion having the fire prevention and insulation damper includes a damper room 100 at the center having a fire prevention and insulation damper at the center, The left and right flame station chambers 200 and 200' connected to the left and right ends of the damper chamber, and the left and right exhaust duct connecting chambers 300 and 300' connected to the left and right ends of the left and right flame zone chambers It is characterized in that it is constituted integrally by combining.
According to the present invention configured as described above, due to the high heat of the flame penetrating through the exhaust duct, it is possible to prevent the fire from spreading while igniting the inflammable material in contact with the outside of the exhaust duct coupled beyond the fire barrier, As the high-temperature flame penetrates through the gap between the inner surface of the fire insulation damper and the edge of the heat insulation plate of the fire insulation damper, it is possible to prevent the fire from spreading beyond the fire bulkhead, and the fire can be prevented by the conduction heat of the steel duct pipe connector. A duct pipe connector for preventing fire spread with a fire insulation damper that can prevent diffusion beyond the fire bulkhead and improves the convenience of installation and repair is provided.

Description

The duct pipe connector for the fire diffusion prevention equipped with the fireproof insulation damper}

The present invention relates to a duct pipe connector for preventing fire spread having a fire prevention and insulation damper, and more particularly, to prevent the spread of fire by flame penetrating through an exhaust duct of a building when a fire breaks out in a building. It relates to a duct pipe connector for preventing fire spread having a fire insulation damper installed through a bulkhead.

When building a building, high heat, high humidity, odor, dust, harmful gas or smoke, etc. generated inside the building are discharged to the outside of the building to maintain a comfortable living environment inside the building, as shown in FIG. Equipment (A) is to be constructed.

The exhaust system (A) includes an exhaust duct (a); An exhaust duct connector (b) installed through the fire barrier to connect one side of the fire barrier and the other exhaust duct (a); And a blower (c) installed outside the building; installed inside the building to intake and discharge high heat, high humidity, odor, dust, harmful gas or smoke generated inside the building to the outside of the building is an exhaust system.

The exhaust duct (a) has an end drawn out to the inner wall of the building and is sucked in through the drawn end or through a flexible duct connected to the drawn end high heat, high humidity, odor, dust, and harmful substances generated in each room of the building. It becomes a passage for gas or smoke.

In addition, the exhaust duct connector (b) is a connector for connecting the exhaust duct (a) and an adjacent exhaust duct (a) to each other.

In addition, the blower (c) is installed outside the building to absorb high heat, high humidity, odor, dust, harmful gas or smoke generated inside the building through the exhaust duct (a) and discharge it to the outside of the building. is an intake fan.

The exhaust system (A) of the building configured as above improves the living environment of each room of the building by taking in high heat, high humidity, odor, dust, harmful gas or smoke generated inside the building at normal times and discharging it to the outside of the building. It serves to keep you comfortable.

However, in the exhaust facility (A), when a fire breaks out in the building, the high-temperature flame penetrating through the exhaust duct (a) moves at a high speed through the exhaust duct (a) and propagates across the fire barrier in the building. It serves as a channel for the spread of fire.

In order to prevent this, conventionally, a fire damper made of steel (referring to a known conventional fire damper with a blocking plate installed in the middle of a steel cylinder, hereinafter referred to as 'conventional fire damper') as an exhaust duct connector is installed on the fire bulkhead of a building to prevent fire was preventing it from spreading across the building's fire barrier.

However, when a fire breaks out in a building, it is known that the high heat of the flame exceeds 1000°C.

Therefore, since the temperature of the flame penetrating through the exhaust duct (a) on one side of the exhaust facility (A) exceeds 1000 ° C, the exhaust duct (a) on the side where the flame is penetrated is in contact with the outside of the duct due to high heat. As the material catches fire, the fire spreads out of control.

In addition, the flame is blocked due to the flame blocking effect of the conventional fire damper, which is the exhaust duct connector of the exhaust facility (A), so that the high temperature flame will no longer proceed in the exhaust duct (a) on the other side of the conventional fire damper, but the conventional fire damper As the high-temperature flame penetrates through the gap between the inner surface of the fire damper and the contact surface of the conventional fire damper barrier plate, the fire may spread beyond the fire barrier.

In addition, although the high-temperature flame is blocked by the blocking plate of the conventional fire damper and cannot proceed any further, the high heat of the conventional fire damper itself heated by the high heat of the flame penetrating into the conventional fire damper reaches hundreds of degrees across the blocking plate. It propagates and ignites inflammable materials that are in contact with the outside of the exhaust duct (a) on the other side, and the fire spreads over the fire bulkhead.

In addition, since the conventional fire damper made of iron, which is the exhaust duct connector of the exhaust facility (A), and the exhaust duct (a) are directly connected, the heat conduction effect is very large, so the risk of fire spreading due to high heat is high, and installation and maintenance are inconvenient. come.

The present invention has been made to solve the above problems, and due to the high heat of the flame penetrated through the exhaust duct, the fire spreads as the inflammable material in contact with the outside of the exhaust duct coupled beyond the fire barrier is ignited. It can prevent the fire from spreading beyond the fire bulkhead as the high-temperature flame penetrates through the gap between the inner surface of the damper room and the contact of the fire insulation damper barrier plate, and the conduction heat of the steel duct pipe connector It is to provide a duct pipe connector for preventing fire spread with a fire insulation damper capable of preventing fire from spreading beyond the fire bulkhead and improving the convenience of installation and repair.

In order to solve the above problems, the duct pipe connector 1 for preventing fire spread having a fire prevention and insulation damper according to the present invention is selected from one end area or both end areas of the outer circumferential surface of the damper room 100, The heat conduction delay holes 101 made of elongated holes of a predetermined size are spaced apart at a predetermined interval and are passed through in series or more than a plurality of rows. 101) The central part and the central part of the even-numbered heat conduction delay holes 101 are through-holes staggered with each other, and the outer circumferential surfaces of the damper chamber 100 and the left and right flame zone chambers 200 and 200' are ceramic wool sheets of a predetermined thickness ( sw), and the outer peripheral surfaces of the left and right exhaust duct connecting rooms 300 and 300' are covered with a flame retardant PE foam sheet (p) of a predetermined thickness, and the outer surface of the entire covered body as described above has a predetermined thickness. In the duct pipe connector for preventing fire spread having a fire prevention and insulation damper in which the aluminum film (af) of is bent to a predetermined thickness, the duct pipe connector for preventing fire diffusion having the fire prevention and insulation damper is provided with a fire prevention and insulation damper in the center The damper chamber 100 at the center of the damper chamber, the left and right flame chambers 200 and 200' connected to the left and right ends of the damper chamber, and the left and right exhausts connected to the left and right ends of the left and right flame chambers It is characterized in that the duct connection room 300 (300') is integrally configured by coupling.

According to the present invention configured as described above, due to the high heat of the flame penetrating through the exhaust duct, it is possible to prevent the fire from spreading while igniting the inflammable material in contact with the outside of the exhaust duct coupled beyond the fire barrier, As the high-temperature flame penetrates through the gap between the inner surface of the damper room and the contact of the fire insulation damper barrier plate, it is possible to prevent the fire from spreading beyond the fire barrier, and the fire is extinguished by the conduction heat of the steel duct pipe connector. It is possible to prevent diffusion beyond the bulkhead, and a duct pipe connection for preventing fire spread equipped with a fire insulation damper that improves the convenience of installation and repair is provided.

Attached Figure 1 is a separated view of the duct pipe connector frame for preventing fire spread having a fire insulation damper according to the present invention.
Fig. 2 is a combined view of Fig. 1;
Figure 3 is an explanatory diagram for explaining the damper room and the fire insulation damper, Figure 3a is an explanatory diagram for explaining the damper room frame, Figure 3b is an explanatory diagram for explaining the fire insulation damper, Figure 3c is , An explanatory diagram for explaining another embodiment of a fire insulation damper, Figure 3d is an explanatory diagram for explaining that ceramic wool (Ce) is adhered to one surface of the fire insulation damper blocking plate, Figure 3e is a fire insulation damper It is an explanatory diagram for explaining that ceramic wool (Ce) is bonded to both sides of the damper blocking plate, and FIG. 3F is an explanatory diagram for explaining that the entire outer surface of the rectangular blocking plate is wrapped with ceramic wool (Ce).
Figure 4 is an explanatory diagram for explaining the expanded graphite layer formed on both sides of the fire insulation damper blocking plate.
5 is an explanatory view for explaining that an expanded graphite frame of a flame retardant material is interposed at the side of the fire insulation damper blocking plate.
Fig. 6 is an explanatory view for explaining that a ceramic gasket in the shape of a frame is interposed in each fastening part of the damper chamber, the flame station chamber, and the exhaust duct connecting chamber.
7 is an explanatory diagram for explaining a state in which the outside of the frame of the duct pipe connector for preventing fire diffusion having a fire prevention and insulation damper according to the present invention is covered with a ceramic wool sheet.
Figure 8 is an explanatory view for explaining a duct pipe connector for preventing fire diffusion having a fire prevention and insulation damper of the present invention formed by bending an aluminum film on the outside of the cover of Figure 7.
9 is a cross-sectional explanatory view for explaining the structure of the duct pipe connector for preventing fire spread having a fire prevention and insulation damper according to the present invention.
Fig. 10 is an explanatory diagram of an exhaust system constructed inside a building.

Hereinafter, with reference to the accompanying drawings, a duct pipe connector (1) for preventing fire spread having a fire prevention and insulation damper according to the present invention will be described in detail.

Prior to this, the terms or words used in this specification and claims should not be construed as being limited to the usual or dictionary meaning, and the inventor appropriately uses the concept of the term in order to explain his/her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical spirit of the present invention. Therefore, since the embodiments described in this specification are only one of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents and modifications that can replace them at the time of filing of the present invention It should be understood that there may be examples. In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, in adding reference numerals to each component, it should be noted that the same components are marked with the same numerals and names as much as possible, even if they are displayed on different drawings.

Attached Figure 1 is a separated view of the duct pipe connector frame for preventing fire spread having a fire insulation damper of the present invention, Figure 2 is a combined view of Figure 1, Figure 3 is a description for explaining the damper room and the fire insulation damper 3A is an explanatory diagram for explaining a damper room frame, FIG. 3B is an explanatory diagram for explaining a fire insulation damper, and FIG. 3C is an explanatory diagram for explaining another embodiment of a fire insulation damper. 3d is an explanatory diagram for explaining that ceramic wool (Ce) is bonded to one side of the fire insulation damper blocking plate, and FIG. 3f is an explanatory diagram for explaining that the entire outer surface of the rectangular blocking plate is wrapped with ceramic wool (Ce), and FIG. 4 is an expansion formed on both sides of the fire insulation damper blocking plate. It is an explanatory diagram for explaining the graphite layer, and FIG. 5 is an explanatory diagram for explaining that an expanded graphite frame of a flame retardant material is interposed at the edge of the blocking plate. 7 is an explanatory diagram for explaining that a frame-shaped ceramic gasket is interposed in each fastening part of the present invention, and FIG. 8 is an explanatory diagram for explaining a duct pipe connector for preventing fire diffusion having a fire prevention and insulation damper of the present invention formed by bending an aluminum film outside the cover of FIG. 7, and FIG. 9 is, It is an explanatory diagram for explaining the cross-sectional structure of the duct pipe connector for preventing fire spread having a fire prevention and insulation damper according to the present invention.

As shown in the accompanying FIGS. 1 to 9, the duct pipe connector 1 for preventing fire spread having a fire prevention and insulation damper according to the present invention is selected from one end area or both end areas of the outer circumferential surface of the damper room 100. In this case, heat conduction delay holes 101 made of elongated holes of a predetermined size are spaced apart at predetermined intervals and passed through in series or more than a plurality of times. The center of the ball 101 and the center of the even-numbered heat conduction delay holes 101 are through-holes staggered with each other, and the outer circumferential surfaces of the damper room 100 and the left and right flame inverse chambers 200 and 200' are made of ceramic wool having a predetermined thickness. The sheet sw is covered, and the outer peripheral surfaces of the left and right exhaust duct connection rooms 300 and 300' are covered with flame retardant PE foam sheets p of a predetermined thickness, and the outside of the entire covered body as described above is In the duct pipe connector for preventing fire spread having a fire prevention and insulation damper in which an aluminum film (af) of a predetermined thickness is bent to a predetermined thickness, the duct pipe connector for preventing fire diffusion having the fire prevention and insulation damper has a fire prevention and insulation damper in the center The damper chamber 100 at the center, the left and right flame chambers 200 and 200' connected to the left and right ends of the damper chamber, and the left and right flame zones connected to the left and right ends of the left and right flame chambers, It is characterized in that the right exhaust duct connecting chamber 300 and 300' are integrally configured by coupling.

It is explained in more detail below.

First, as shown in the attached Figures 1 and 2, the frame 1 'of the duct pipe connector 1 for preventing fire spread having a fire prevention and insulation damper of the present invention has the same cross-sectional length formed of an iron plate of a predetermined thickness. It is formed of 200mm, 300mm and 400mm long tubular bodies, and both ends of each tubular body are bent outward to form a flange (f) of a predetermined width, so that the 200mm long tubular body is a damper room (100 ), and the 400mm long cylindrical body has one end coupled to both ends of the damper chamber to form the left and right flame zone chambers 200 and 200', and the 300mm long cylinder body is the left and right flame zone chamber One end is coupled to each other end of (200) (200') to form the left and right exhaust duct connecting chambers (300) (300'), which are integrally formed by coupling.

As shown in FIG. 2, the damper room 100 is located in the central part of the frame 1' of the duct pipe connector 1 for preventing fire diffusion having the fire prevention and insulation damper of the present invention, and the central part 102 of the left and right side walls ) is provided with a fire insulation damper 110 to block the infiltrated flame.

Figure 3 is an explanatory view for explaining the damper room 100 and the fire insulation damper 110, Figure 3a is an explanatory view for explaining the damper room frame, Figure 3b is for explaining the fire insulation damper 3c is an explanatory diagram for explaining another embodiment of a fire insulation damper, and FIG. 3d is an explanatory diagram for explaining that ceramic wool (Ce) is adhered to one side of a fire insulation damper blocking plate. , Figure 3e is an explanatory diagram for explaining that ceramic wool (Ce) is adhered to both sides of the fire insulation damper blocking plate, and Figure 3f is formed by wrapping the entire outer surface of the rectangular blocking plate with ceramic wool (Ce). It is an explanatory diagram for explanation.

As shown in FIG. 3A, the damper chamber 100 is formed in any one cylindrical shape selected from among a hollow rectangular cylinder in cross section or a circular cylinder in cross section made of an iron plate having a thickness of 0.5 mm to 2 mm.

However, the cross-sectional shape of the damper chamber 100 is not limited to this, and any cross-sectional shape may be used as long as it is tubular.

In this embodiment, a case in which the damper chamber 100 has a rectangular cylindrical cross section will be described.

The cross-sectional shape of the damper chamber 100 is the left and right flame chambers 200 and 200' fastened adjacently and the left and right exhausts fastened to the left and right flame chambers 200 and 200'. It is formed in the same cross-sectional shape as the cross-sectional shape of the duct connection room 300 (300').

As shown in FIG. 3A, both ends of the damper chamber 100 are bent outward to form flange portions f, which are coupling portions.

As shown in FIG. 3A, in the flange portion (f) of the damper chamber 100, a predetermined number of fastening holes f1 having a nut body formed on the inner surface are through holes, and left and right flames are formed in the fastening holes f1 A predetermined number of fastening bolts f2 are provided for fastening with the reverse truth (200) (200').

In this embodiment, the length of the damper chamber 100 is 200 mm.

In addition, in an area selected from one end area or both end areas of the outer circumferential surface of the damper room 100, as shown in FIG. It may be perforated in more than plural numbers.

3A is an explanatory view for explaining that a plurality of heat conduction delay holes 101 are passed through one end region of the damper chamber 100.

At this time, when the heat conduction delay hole 101 is passed through a plurality of rows or more, as shown in FIG. 3A, the center of the heat conduction delay hole 101 of the odd number and the center of the heat conduction delay hole 101 of the even number are staggered. Through-holes are preferred because the effect of delaying heat conduction is greater.

The high heat of the flame penetrated through the exhaust duct (a) on one side by the heat conduction delay hole 101 of the damper room 100 rides the outer wall of the damper room 100 made of steel to the bottom of the heat conduction delay hole 101 The conduction is delayed and the heat conduction is reduced, so that the high heat of the flame penetrating through the exhaust duct (a) on one side is prevented from being conducted over the fire barrier.

A fire prevention and insulation damper 110 is provided at the center of the damper room 100 .

Here, the fireproof insulation damper 110, as shown in FIG. 3B, the damper shaft 111 is rotatably shaft-coupled to the center 102 of the left and right side walls of the damper room 100, and to the damper shaft 111 It means that it is configured by combining the blocking plate 112.

At this time, as shown in FIG. 3C, the blocking plate 112 of the fire prevention and insulation damper 110 cuts the left and right center lines of the integral steel plate to form the damper shaft coupling hole 113, and then the damper shaft 111 It is also possible to form by firmly coupling to the damper shaft coupling hole 113.

4 is an explanatory view for explaining the expanded graphite layers (g, 117) formed on both sides of the blocking plate 112 of the fire prevention and insulation damper 110.

As shown in FIG. 4, on both sides of the blocking plate 112 of the fire prevention and insulation damper 110, it is also preferable to form expanded graphite layers (g, 117) by applying or spraying an expanded graphite mixture.

When a fire occurs in a building and the blocking plate 112 of the fire insulation damper 110 is blocked, the expanded graphite layers (g, 117) formed on both sides of the blocking plate 112 expand to form a flame retardant layer. This makes it possible to prevent or prevent the spread of fire beyond the fire bulkhead by the high-temperature flame penetrating through the exhaust duct (a) on one side.

At this time, it is also possible to form the expanded graphite layer (g, 117) by coating or spraying the expanded graphite mixture on one surface of the blocking plate 112 of the fire prevention and insulation damper 110.

In addition, as can be inferred from FIGS. 3A and 3B, the fire prevention and insulation damper 110 has a plurality of damper shafts 111, 111 on the upper and lower parts of the center 102 of the left and right side walls of the damper room 100. ') is rotatably coupled, and it is also possible to be configured by coupling blocking plates 112 and 112' (not shown) to the plurality of damper shafts 111 and 111' (not shown), respectively.

That is, the damper room 100 may be configured by rotatably coupling a plurality of fire/insulation dampers 110 to left and right side walls.

Even at this time, the blocking plate 112 (112' not shown) of the fire insulation damper 110 cuts the center line of the integral steel plate to form the damper shaft coupling hole 113, as can be inferred from FIG. After forming, it is also possible to form by firmly coupling the damper shafts 111 (111' not shown) to the respective damper shaft coupling holes 113.

In this case, as shown in FIG. 4, on both sides of the blocking plate 112 (112' not shown) of the fire insulation damper 110, an expanded graphite mixture is applied or sprayed to form an expanded graphite layer (g, 117) It is also desirable to

Even at this time, of course, it is possible to form the expanded graphite layer (g, 117) by applying or spraying the expanded graphite mixture on one surface of the blocking plate 112 of the fire prevention and insulation damper 110.

In addition, the fire protection and insulation damper 110 is configured by coupling the blocking plate 112 to the damper shaft 111, as shown in FIGS. 3 (d) to 3 (f), the blocking plate 112 As shown in FIG. 3(d), it may be formed by bonding ceramic wool (Ce) to one surface, or as shown in FIG. 3(e), it may be formed by interposing ceramic wool (Ce) between two iron plates. And, as shown in FIG. 3(f), it is also possible to form the ceramic wool (Ce) in a shape in which the ceramic wool (Ce) is wrapped with a hexahedral iron plate in order to prevent scattering of dust.

The ceramic wool (Ce) is preferably formed to a thickness of 3 mm or more and 40 mm or less.

At this time, when the thickness of the ceramic wool (Ce) is less than 3 mm, flame propagation is easy and the insulation effect is insufficient, and when the thickness of the ceramic wool (Ce) exceeds 40 mm, the thickness of the barrier plate 111 is excessively It is thick and the operation of the blocking plate 111 is difficult and undesirable due to its weight.

The best known property of ceramic materials is their thermostability.

The ceramic material has high stability against temperature change because it has undergone a sintering process through a high-temperature (1,000° or more) heat treatment in the manufacturing process.

As described above, ceramic wool (Ce) is adhered to one or both sides of the blocking plate 111 of the fire insulation damper 110, or the entire outer surface of the rectangular blocking plate 111 is wrapped with ceramic wool (Ce) to form one side exhaust. The high-temperature flame penetrated through the duct (a) is propagated beyond the fire barrier and can prevent the fire from spreading.

At this time, the ceramic wool (Ce) is not limited thereto, and may be applied regardless of the type as long as it is an inorganic fiber-based heat insulating material.

5 is an explanatory view for explaining that an expanded graphite frame 115 made of a flame retardant material is interposed at the side of the blocking plate 112 of the fire prevention and insulation damper 110.

As shown in FIG. 5, the fire prevention and insulation damper 110 blocking plate 112 has four edges 114 in contact with the inner surface of the damper room 100, except for the coupling part of the damper shaft 111. An expanded graphite frame 115 made of a flame retardant material may be interposed therebetween.

The expanded graphite frame 115 is interposed in the four upper, lower, left, and right sides 114 of the blocking plate 112 when a fire occurs in the building and the blocking plate 112 of the fire insulation damper 110 is blocked. The expanded graphite of the expanded graphite frame 115 expands and improves the sealing force between the inner surface of the damper chamber 100 and the four sides 114 of the upper, lower, left and right sides of the blocking plate 112 that are in contact with the inner surface of the damper chamber 100. The high-temperature flame penetrated through the duct (a) propagates beyond the fire bulkhead and can prevent the fire from spreading.

Therefore, it is possible to block the flame penetrating into the gap between the inner surface of the damper room 100 and the upper, lower, left and right sides 114 of the blocking plate 112 in contact with the inner surface of the damper room 100, thereby preventing the spread of fire in the building. will be able to

At this time, the expanded graphite frame 115 is formed into a frame shape by applying or spraying an expanded graphite mixture in which a binder and expanded graphite powder are mixed in a ratio of 1:1 to both sides of a flexible fiber material such as nonwoven fabric or glass wool.

As such, by blocking flame, smoke and toxic gas by the fire prevention and insulation damper 110 of the damper room 100, it is possible to secure an initial evacuation time for people to escape from the fire site in the event of a fire, thereby preventing human damage, In particular, by blocking the supply of oxygen to the point of ignition, it is possible to prevent the spread of flame and the spread of fire to nearby buildings.

Next, at both ends of the damper chamber 100, as shown in FIG. 3A, a flange portion f is formed bent outward, and a predetermined number of fastening holes having a nut body formed on the inner surface of the flange portion f f1) is through-holes at predetermined intervals, and each of the fastening holes f1 is provided with fastening bolts f2.

This is also the case of the flame station chamber 200 (200') and the exhaust duct connection chamber 300 (300').

Attached Figure 6 shows that a rim-shaped ceramic gasket (sg) is interposed at each fastening part of the damper chamber 100, the flame station chamber 200 (200'), and the exhaust duct connecting chamber 300 (300'). It is an explanatory diagram to explain things.

The left and right flange parts (f) of the damper chamber 100 are fastened with the flange parts (f) of one end of the left and right flame chambers 200 and 200', respectively. At this time, the flange parts (f ) and the flange portion f, as shown in FIG. 6, a rim-shaped ceramic gasket sg is inserted and interposed.

Attached Figures 7 and 8 are explanatory diagrams for explaining a state in which the outside of the frame 1 'of the duct pipe connector 1 for preventing fire diffusion having a fire prevention and insulation damper of the present invention is covered, Figure 7 is a damper room (100) and the flame retardant chamber (200) (200') are covered with ceramic wool sheets (sw), and the outside of the exhaust duct connecting chamber (300) (300') is coated with a flame retardant PE foam sheet (P). Figure 8 shows a duct pipe connector (1) for preventing fire spread having a fire prevention and insulation damper of the present invention formed by bending an aluminum film (af) on the entire exterior of the enclosure of FIG. There is also an explanation.

As shown in FIG. 7, the outer circumferential surface of the damper chamber 100 is covered with a ceramic wool sheet sw having a predetermined thickness as an insulating material.

As shown in FIG. 8, the outside of the cover body coated as described above is protected by being banded with an aluminum film (af) of a predetermined thickness as a whole.

Hanpun, as shown in FIGS. 1 and 2, the left and right flame station truth chambers 200 and 200' are provided in plurality by having one end fastened to both ends of the damper chamber 100, respectively.

Since the left and right flame inverse truths 200 and 200' cannot predict from which direction the flame from the fire will penetrate, it is symmetrical on both sides of the damper room 100 centered on the damper room 100 in the center A plurality will be provided.

In the left and right flame inverse chambers 200 and 200', in the event of a building fire, flames penetrated through the exhaust duct (a) on one side of the damper room 100, the fire prevention and insulation damper 110, the blocking plate 112 ), it is a place where you cannot proceed further and become regressive.

The left and right flame station chambers 200 and 200' are formed in a hollow rectangular or cylindrical tubular shape made of a 1 mm thick steel plate.

However, the cross-sectional shape of the left and right flame chambers 200 and 200' is not limited to this, and any cross-sectional shape may be used as long as it is cylindrical.

The cross-sectional shape of the left and right flame chambers 200 and 200' is the same as the cross-sectional shape of the damper chamber 100 and the left and right exhaust duct connecting chambers 300 and 300'. .

At both ends of the left and right flame inversion chambers 200 and 200', a flange portion f, which is a coupling portion, is bent outward.

In the flange portion (f) of the left and right flame chambers 200 and 200', in the same manner as shown in FIG. 3, a predetermined number of fastening holes f1 having nut bodies formed on the inner surface are through, The hole f1 is provided with a predetermined number of fastening bolts f2 for fastening with the damper chamber 100 and the left and right exhaust duct connecting chambers 300 and 300'.

The left and right flame station chambers 200 and 200' are coupled by fastening one end of the flange parts f to both ends of the damper chamber 100, respectively.

That is, the flange part (f) of one end of the left and right flame inverse chambers 200 and 200' is fastened to the flange part (f) of one end of the damper chamber 100, and the left and right flame inverse chambers 200 (200') The flange part (f) of the other end is fastened with the flange part (f) of one end of the left and right exhaust duct connection rooms (300) (300').

At this time, as shown in FIG. 6, a rim-shaped ceramic gasket (sg), which is an insulating material, is inserted into the space between the flange parts (f) fastened to each other to enhance sealing and heat insulating effects.

9 is a cross-sectional explanatory view for explaining the structure of the duct pipe connector for preventing fire spread having a fire prevention and insulation damper according to the present invention.

When a fire occurs due to the rim-shaped ceramic gasket (sg), which is an insulating material inserted into the space between the flange portions (f), as shown in FIG. 9, the high heat of the flame penetrated through the one-side exhaust duct (a) It delays conduction to the lower part of the part and attenuates the amount of heat conduction, so that the ignition material close to the outer circumferential surface of the left and right exhaust duct connection rooms 300 (300') fastened to the lower part is ignited by high heat and the fire spreads will block it

In this embodiment, the length of the left and right flame station chambers 200 and 200' is formed to a length of 400 mm.

However, in this embodiment, the length is suggested to be 400 mm, but the length of the left and right flame station chambers 200 and 200' may be formed longer than this.

This is because the space in which the high-temperature flame stays in the pipe may be longer than this when the flame penetrated through the exhaust duct (a) on one side hits the blocking plate 112 of the fire insulation damper 110 and starts moving backward.

As shown in FIG. 7, in the area between each flange part f of the outer circumferential surface of the left and right flame zone truth 200, 200' fastened as described above, ceramic having a predetermined thickness as an insulating material A wool sheet (sw) is coated.

In addition, as shown in Fig. 8, an aluminum film af having a predetermined thickness is bent and protected on the outside of the covered body as described above.

Next, the left and right exhaust duct connecting chambers 300 and 300' are fastened between the left and right flame station chambers 200 and 200' and the respective exhaust ducts (a) fastened thereto, so that the flame By forming a spaced part between the reverse chamber (200) (200') and the exhaust duct (a), the high-temperature flame penetrated through the exhaust duct (a) on one side of the left and right exhaust duct connection rooms (300) (300') As shown in FIG. 6, in order to delay and attenuate the amount of heat conduction through the downward conduction and to ensure the convenience of installation and maintenance of the exhaust duct (a), the left and right flame zones 200 and 200 One end is fastened to each other end of ') and is provided in plurality.

The length of the left and right exhaust duct connecting chambers 300 and 300' in this embodiment is formed to be 300 mm long.

The left and right exhaust duct connecting chambers 300 and 300' are hollow cross-sections made of steel plates with a thickness of 1 mm, the same as the damper chamber 100 and the left and right flame zone chambers 200 and 200' It is formed in a rectangular or cylindrical tubular shape.

However, the cross-sectional shape of the left and right exhaust duct connecting chambers 300 and 300' is not limited thereto, and any cross-sectional shape may be used as long as it is a tubular shape.

That is, the cross-sectional shape of the left and right exhaust duct connecting chambers 300 and 300' is the same as the cross-sectional shape of the damper chamber 100 and the left and right flame zone chambers 200 and 200'. formed, and bent outward at both ends to form a flange portion f in the same manner as shown in FIG. 3A.

A predetermined number of fastening holes f1 are passed through each of the flange parts f for fastening with the left and right flame chambers 200 and 200' and the exhaust duct a, and the fastening holes f1 have Each fastening bolt (f2) is provided.

The flange part (f) of each end of the left and right exhaust duct connecting chambers (300, 300') is fastened to the flange part (f) of the other end of each of the left and right flame zone chambers (200, 200'), The left and right exhaust duct connecting chambers 300 and 300', the flange portion f of the other end is coupled with one end of the exhaust duct a, respectively.

At this time, as shown in FIG. 6, a rim-shaped ceramic gasket (sg), which is an insulating material, is inserted into the space between the flange parts (f) fastened to each other to enhance the sealing and insulation effect. do.

As shown in FIG. 7, in the area between the flange portions f of the outer circumferential surfaces of the left and right exhaust duct connection chambers 300 and 300' fastened as described above, a predetermined thickness is treated with flame retardancy, as shown in FIG. The flame retardant PE foam sheet (p) of is coated with a predetermined thickness.

In fact, if the entire outer circumferential surface of the exhaust duct (a) can be covered with ceramic wool sheet (sw), which is an insulating material, the risk of fire spreading in the event of a fire will be greatly reduced.

However, the ceramic wool sheet (sw), which is an insulating material, is relatively expensive compared to other covering materials.

Therefore, if the entire outer circumferential surface of the exhaust duct (a) is coated with the ceramic wool sheet (sw), which is an insulating material, it will eventually lead to an increase in construction costs, which will greatly increase the economic burden. there will be

Therefore, in real construction sites, PE foam, which is a heat insulating material with high insulation effect and low cost, is used.

However, PE foam is vulnerable to fire, and when the PE foam ignites, toxic gas is generated, which is fatal to the human body.

To prevent this, flame retardant PE foam treated with flame retardant treatment is used.

Since the flame-retardant PE foam does not melt below a predetermined temperature, it can prevent or delay the spread of fire to some extent in the event of a fire, and it can be built at a low construction cost, thereby reducing the economic burden.

In the flame retardant PE foam sheet (p) of the present invention, after converting the flame retardant PE foam into a sheet and laminating and heat-sealing a plurality or more flame-retardant PE foam sheets, an aluminum film (af) is thermally fused to one side of the laminate, and the other side The expanded graphite layer (g, 117) is formed by coating or spraying an expanded graphite mixture formed by mixing a binder and expanded graphite powder and then solidifying it.

First, after mixing graphite powder with polyethylene resin, it is foamed to form a flame retardant PE foam, and the flame retardant PE foam is sheeted to a thickness of 1 mm or more and 50 mm or less.

When the thickness of the flame retardant PE foam sheet formed above is formed to be less than 1 mm, the sheet is too thin and the coating process is delayed, which may decrease work efficiency. If the thickness of the flame retardant PE foam sheet exceeds 50 mm, the coating process It is undesirable because it is not delicate and there is a risk of poor coating.

Next, a plurality of flame retardant PE foam sheets are stacked and thermally fused to heat-seal an aluminum film (af) on one side of the laminate, and an expanded graphite mixture 117 in which expanded graphite powder is mixed with a binder is applied to the other side of the laminate. Formation of the flame retardant PE foam sheet (p) is completed by coating or spraying and solidifying to form the expanded graphite layer (g).

Therefore, the outer circumferential surfaces of the left and right exhaust duct connection rooms 300 and 300' of this embodiment and each exhaust duct (a) fastened thereto are coated with a relatively inexpensive flame retardant treated flame retardant PE foam sheet (p). do.

Since the flame retardant PE foam sheet (p) is relatively inexpensive, it is welcomed in the industry because it can reduce the economic burden by saving construction costs while pursuing fire safety.

As a result, the left and right exhaust duct connection rooms 300 and 300' are interposed between the left and right flame zone chambers 200 and 200' and the exhaust duct a to function as a spaced space. The flame retardant PE foam sheet (which can prevent the spread of fire by delaying or attenuating the conduction of the high heat of the flame to the lower part through the left and right exhaust duct connecting rooms 300 and 300', and all of which have the same outer coating) p), so it is easy to connect and separate the coating work and each other.

In addition, as shown in FIG. 8, the outside of the cover body coated as described above is protected by being bent with an aluminum film (af) of a predetermined thickness as a whole.

Next, the action effect of the duct pipe connector 1 for preventing fire spread having a fire prevention and insulation damper according to the present invention will be described in detail.

First, tubular bodies of 200 mm, 300 mm, and 400 mm in length and having the same cross-sectional shape formed of steel plates of a predetermined thickness are formed, and both ends of the cylindrical bodies are bent outward to form a flange portion (frange, f) of a predetermined width. .

At this time, the 200mm long cylindrical body becomes the damper chamber 100 at the center, and the 400mm long cylindrical body has one end coupled to both ends of the damper chamber to form a flame inverse chamber 200 (200'), and a 300mm long cylindrical body One end of the tubular body is coupled to the other end of each of the flame station chambers 200 and 200' to become the exhaust duct connecting chamber 300 and 300'.

That is, the frame 1 'of the duct pipe connector 1 for preventing fire spread having a fire prevention and insulation damper of the present invention includes a damper room 100 provided with a fire prevention and insulation damper 110 in the center and located in the center; The space between the flange portion (f) and the flange portion (f) on the left and right sides of the damper room 100 so that the infiltrated flame hits the blocking plate 112 of the fire prevention and insulation damper 110 of the damper room 100 and reverses. a plurality of left and right flame inversion chambers 200 and 200' in which a frame-shaped ceramic gasket (Sg), which is an insulating material, is inserted and interposed, and each end is fastened and provided; Flange parts ( A strip-shaped ceramic gasket (sg), which is an insulating material, is inserted into the space between f) and the flange portion (f), and one end of a plurality of left and right exhaust duct connecting chambers 300 and 300' is fastened and combined to form a single body. is formed as

As described above, a rim-shaped ceramic gasket (sg), which is an insulating material, is inserted into the space between the flange parts (f) fastened to each other, thereby increasing the sealing and insulating effect.

Outer circumferential surface of the damper room 100 and the left and right flame reverse chambers 200 and 200' of the frame 1' of the duct pipe connector 1 for preventing fire spread with the fire prevention and insulation damper of the present invention formed as described above A ceramic wool sheet (sw) having a predetermined thickness, which is an insulating material, is coated in the area between the flange portions (f) of the and is fastened to the left and right flame zone truths (200, 200'), A flame retardant PE foam sheet (p) is coated on the outer circumferential surface of the right exhaust duct connection room (300) (300') in the area between the flange portion (f) and the flange portion (f).

An aluminum film (af) of a predetermined thickness is bent to a predetermined thickness on the entire outer circumferential surface of the covered body as described above to complete the configuration of the duct pipe connector 1 for preventing fire spread having a fire prevention and insulation damper as an integral part of the present inventors.

The present invention completed as described above, the duct pipe connector (1) for preventing fire spread having a fire prevention and insulation damper is installed through the fire bulkhead, and is installed at each other end of the left and right exhaust duct connection rooms 300 and 300'. The installation of the building exhaust system (A) is completed by sequentially fastening and combining the exhaust ducts (a) and connecting them to the blower (c) installed on the roof of the building.

In the case of a fire in the building, the fire can rapidly spread through the exhaust duct (a) of the exhaust facility (A), and the high heat of the flame penetrated through the exhaust duct (a) can lead to a damper room made of steel. It is also conducted to the other side of the damper room (100), and the high heat conducted to the other side of the damper room (100) is sequentially transferred to the flame station room (200') and the air conditioning duct connection room (300') on the other side of the steel damper room (100) When the temperature of the flame station 200' and the air conditioning duct connection room 300' exceeds a predetermined temperature by conduction, the inflammable material adjacent to the outer circumferential surface of the flame station 200' and the air conditioning duct connection room 300' ignites. The fire may spread to the opposite side of the building fire bulkhead.

However, according to the duct pipe connector (1) for preventing fire spread having a fire prevention and insulation damper according to the present invention, when a fire occurs in a building, exhaust on one side of the duct pipe connector (1) for preventing fire spread having the fire prevention and insulation damper The flame penetrating through the duct (a) is blocked by the blocking plate 122 of the fire insulation damper 110 of the damper room 100 and cannot advance any further, but reverses to prevent the fire from spreading beyond the fire bulkhead. there will be

In addition, the expanded graphite mixture (p) applied or sprayed on both sides of the blocking plate 112 of the fire prevention and insulation damper 110 is expanded by the high heat of the flame penetrating through the one-side exhaust duct (a) to form a heat insulating layer, resulting in high heat It is possible to prevent the fire from spreading beyond the fire bulkhead by the conduction heat of the steel barrier plate 122 heated to .

In addition, at this time, the expanded graphite frame interposed between the inner surface of the damper chamber 100 and the side 114 of the blocking plate 112 in contact with the inner surface of the damper chamber 100 due to the high heat of the flame penetrated through the exhaust duct (a) on one side As the expanded graphite of (115) expands, the inner surface of the damper room 100 and the adjacent side 114 of the blocking plate 112 are closely sealed, so that the inner surface of the damper room 100 and the blocking plate ( 122), it is possible to block the spread of fire beyond the fire bulkhead by blocking the penetration of flame through the gap with the sidewall 114.

In addition, the heat conduction delay holes 123 formed of long holes having a predetermined size spaced apart at a predetermined distance from one end area or both end areas of the outer circumferential surface of the damper room 100 are through a series or a plurality of or more. People can escape from the fire scene by preventing and delaying the spread of fire beyond the fire bulkhead by delaying and attenuating the conduction of the high heat of the flame to the opposite side of the flame station room (200') and the air conditioning duct connection room (300'). You will be able to secure an early evacuation time as much as possible.

In addition, the damper room 100 of the fire spread prevention duct pipe connector 1 having the fire prevention and insulation damper, the left and right flame station truth rooms 200 and 200', and the left and right exhaust duct connection rooms 300 (300 ') is a connection portion, each flange portion (f) and the flame reverse truth (200 ') and the exhaust duct connection room (300') to block and attenuate the conduction of the fire over the fire barrier due to the conduction heat, thereby preventing and delaying the spread of fire over the fire barrier, thereby securing early evacuation time for people to quickly escape from the fire scene. You will be able to do it.

In addition, the duct pipe connector (1) for preventing fire spread with a fire prevention and insulation damper according to the present invention has a flange portion (f) and a flange portion on the outer circumferential surface of the damper room (100) and the left and right flame zone chambers (200) (200') The area between (f) is covered with a ceramic wool sheet (sw) having a predetermined thickness, which is an insulating material, and between the flange portion (f) of the outer circumferential surface of the left and right exhaust duct connection rooms (300, 300') and the flange portion (f). The region is covered with a flame retardant PE foam sheet (p), and an aluminum film (af) of a predetermined thickness is banded and protected on the entire outer circumferential surface of the coated body as described above, so that the high heat of the flame penetrating into the inside of the duct pipe By blocking and delaying conduction to the outside of the duct, it is possible to secure early evacuation time for people to escape from the fire scene.

In addition, in the duct pipe connector (1) for preventing fire spread with a fire prevention and insulation damper according to the present invention, the outer circumferential surface of the left and right exhaust duct connection rooms (300) (300') and the exhaust duct (a) are made of the same flame retardant PE foam. It is covered with a sheet, and the left and right exhaust duct connection rooms 300 and 300' are fastened and combined in the area between the left and right flame station chambers 200 and 200' and the exhaust duct a. A spaced portion of a predetermined length is formed between the reverse chamber 300 (300') and the exhaust duct (a) to increase work efficiency during installation and maintenance.

Although the above-mentioned preferred embodiment has been described in detail the duct pipe connector 1 for preventing fire spread having a fire prevention and insulation damper of the present invention, various modifications or variations are applied without departing from the gist and scope of the present invention things are always possible Therefore, it is extremely obvious that the appended claims are intended to cover modifications and variations falling within the subject matter of the present invention.

1 Duct pipe connector for preventing fire spread with fire insulation damper
A Exhaust facility a Exhaust duct b Exhaust duct connector c Blower f Flange f1 fastening hole f2 Fastening bolt g Expanded graphite layer sg Ceramic gasket sw Ceramic wool sheet af Aluminum film p Flame retardant PE foam sheet
100 Damper room 101 Heat conduction delay hole 102 Center
110 Fire insulation damper 111,111' damper shaft 112,112' blocking plate 113 damper shaft coupling hole 114 side edge 115 expanded graphite frame 116 fiber material 117 expanded graphite layer
200.200' left, right flame reverse truth
300,300' left, right exhaust duct connection room

Claims (12)

In one area selected from one end area or both end areas of the outer circumferential surface of the damper room 100, heat conduction delay holes 101 made of elongated holes of a predetermined size are spaced apart at a predetermined interval and are passed through in series or more. When the holes 101 are passed through a plurality of rows or more, the center of the heat conduction delay hole 101 of the odd number and the center of the heat conduction delay hole 101 of the even number are passed through so as to be staggered, and the damper room 100 and the left, The outer circumferential surface of the right flame station chamber 200 (200') is covered with a ceramic wool sheet (sw) of a predetermined thickness, and the outer circumferential surface of the left and right exhaust duct connecting chambers 300 (300') is coated with flame retardant PE foam of a predetermined thickness. In the duct pipe connector for preventing fire spread having a fire prevention and insulation damper coated with a sheet (p) and having a fire prevention and insulation damper in which an aluminum film (af) of a predetermined thickness is bent to a predetermined thickness on the outside of the entire covered body as described above, the fire prevention The duct pipe connector for preventing fire spread with an adiabatic damper is provided with a damper room 100 in the center having a fireproof insulation damper in the center, and left and right flame station chambers 200 connected to the left and right ends of the damper room ( 200' and the left and right exhaust duct connection rooms 300 and 300' connected to the left and right ends of the left and right flame station chambers are integrally formed by combining fire diffusion with fire insulation dampers Duct pipe connector for prevention.
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