KR20200133990A - Dry air duct double sleeve - Google Patents

Abstract

The present invention relates to a dry air duct double sleeve, and more specifically, to a dry air duct double sleeve which comprises: a base sleeve (100) provided with a base head portion (101), a base tail portion (102) and a base casing (103) which are buried in a slab (S) forming the interlayer of a building to induce air into the interlayer, and have a predetermined length corresponding to the thickness of the slab (S), wherein a base hollow hole (104) is formed with the hollow inner portion between the base head portion (101) and the base tail portion (102) on the inner side of the base casing (103), a base head portion protruding unit (105) is provided to outwardly protrude from the upper portion of the base head portion (101), and the base sleeve is also provided with a horizontal support material (106) which is bent and extended in the inner direction in which the base hollow hole (104) is located at the directly lower side from the base head portion (101) and a vertical support material (108) which is vertically bent to the directly upper direction in which the base head portion (101) is located from the horizontal support material (106) and has an insertion guider (107) formed to guide an auxiliary sleeve (200); and the auxiliary sleeve (200) which is inserted through the insertion guider (107) into the inner diameter of the edge of the base head portion (101), and has an auxiliary hollow hole (201) provided to extend the base hollow hole (104) formed on the base sleeve (100) to extend an air guide path. Therefore, construction is enabled in a simple and convenient manner.

Description

Dry air duct double sleeve {DRY AIR DUCT DOUBLE SLEEVE}

The present invention relates to a dry air duct double sleeve, and more particularly, a base sleeve embedded in an interlayer slab so that smoke generated with a fire does not leak to other layers to cause secondary damage, and an auxiliary sleeve coupled with the base sleeve. It relates to providing a sleeve structure in which the ventilation sealing material is disposed.

In the event of a fire in a high-rise building, the inflow of smoke to the evacuation stairs and emergency elevators causes enormous casualties.

In order to avoid this risk, high-rise buildings are essentially installing ventilation equipment to secure an evacuation route by preventing smoke inflow to evacuation stairs and emergency elevators in case of fire.

General ventilation equipment according to the fire safety standard supplies'leakage amount' to maintain a certain standard of differential pressure in the sub-rooms on all floors when a fire occurs.However, if the opening/closing sensor detects that the door of the sub-room is open, it operates individually in the ventilation damper on the open floor. Therefore, it is common to additionally supply'replenishment amount' by opening the damper blade.

Here, the'replenishment amount' is stipulated in the'Fire Safety Standards for Smoke-Frequency Facilities of Special Evacuation Stairs and Auxiliary Rooms' of NFSC 501A, the domestic fire safety standard.

③ When the entrance door to the ventilation area is temporarily opened for evacuation, outdoor air must be supplemented into the ventilation area to maintain the smoke-retardant wind velocity.

The smoke-retardant wind speed according to ③ above and related regulations is more than 07 ㎧.

Conventionally, in buildings with less than 20 floors, the capacity of ventilation fans is regulated so that leakage is supplied to all floors and replenishment amount of one floor is possible.After that, it is stipulated that the supply of replenishment amount of one floor is added every more than 20 floors. .

In addition, a dry type air duct system is provided to guide inter-floor air to the upper floor by using a sleeve embedded in a slab on which the floor or ceiling is formed between the floors of the building.

This dry air duct system connects air ducts made of fibsi material or galvalume material to each floor to allow natural or forced exhaust from the rooftop.

The dry air duct system is installed by connecting a plurality of upright air ducts in the vertical direction of the building, and saddles are installed to be connected to one side of the upright air duct and fixed to the flexible duct on the kitchen or bathroom side. The uppermost layer of the air duct has a structure in which an exhaust perforated plate is installed, and an exhaust fan is installed above the exhaust perforated plate.

At this time, the upper and lower connecting ends of the upright air duct are connected and fixed in a straight line up and down using a connecting member such as a connection band or a coupling, and in the interlayer slab part made of concrete, a sleeve is inserted into the interlayer slab. The layers are connected by the guide of this sleeve.

That is, the upper air duct and the lower air duct are butted at the upper and lower ends of the sleeve inserted into the interlayer slab, and then butt-coupled by fastening a connecting member such as a connecting band or a coupling to the butted portions between them.

However, conventionally, there has been a problem in that a gap is formed between the sleeve and the air duct that is butt-coupled, and the formation of this gap is a problem in which the toxic gas and flame of the lower floor are guided and transmitted to the upper floor when a fire occurs in a multi-storey building. Cause.

In order to solve this problem, a method of inserting a sealing member made of an elastic material between the gap between the sleeve and the air duct has been disclosed, but there is a problem that the sealing process is not easy and the work is cumbersome.

Moreover, such a sealing member melts by the heat of the fire during a fire and cannot seal the smoke, so that the smoke leaks to other floors, and the problem is that it does not meet the minimum ventilation speed that can be evacuated through evacuation stairs and emergency elevators. .

Korean Patent Registration No. 10-1466271, 2014.11.21. Registration, name of invention: Connecting Structure of Vertical Exhaust Pipe in Dry-type Air duct System

The technical problem to be achieved by the present invention is to solve the problems or necessity as described above, and is buried in the slab (S) that forms between the floors of the building and corresponds to the thickness of the slab (S) so as to guide air between the floors. A horizontal support member 106 and a vertical support member 108 are disposed inside the base head 101, the base tail 102, and the base casing 103 to have a predetermined length to prevent smoke leakage in case of fire. It is to provide a dry air duct double sleeve including a base sleeve 100 to prevent.

Another object of the present invention is to extend the air guideway so as to extend the base hollow 104 formed in the base sleeve 100 by being inserted through the inner diameter of the rim of the base head 101 and the insertion guider 107 In order to provide a dry air duct double sleeve capable of ventilation even by simply installing a beginner installer by using the auxiliary sleeve 200 provided with the auxiliary hollow 201 so as to be simple.

Another object of the present invention is that the height of the center of the horizontal support member 106 is greater than the height of the region where the horizontal support member 106 meets the base casing 103 and the region where the vertical support member 108 meets. To provide a dry air duct double sleeve that is provided low so that the ventilation sealant can be easily seated and the ventilation sealing effect can be maintained even in the heat of a fire.

Another object of the present invention is that a side surface of the base casing 103 protrudes outward from the base hollow 104 at a position where the horizontal support member 106 is coupled to the base casing 103 to the inside. It is to provide a dry air duct double sleeve stabilizing the structure of the horizontal support member 106, which can sufficiently fill the ventilation sealing material by forming a coupling space.

Another object of the present invention is that the auxiliary sleeve 200 inserted into the base sleeve 100 has an auxiliary protrusion 202 on the side, and a coupling member between the auxiliary protrusion 202 and the base head protrusion 105 It is provided with 203 to provide a dry air duct double sleeve that maximizes the ventilation capacity in case of fire.

Another object of the present invention is that a protruding wedge 202a is formed on the lower surface of the auxiliary protrusion 202 so that the auxiliary sleeve and the base sleeve are rigidly coupled so that they do not twist each other, and the upper surface of the base head protrusion 105 protrudes. It is to provide a dry air duct double sleeve provided with a coupling recess (105a) so as to mesh with the wedge (202a).

Meanwhile, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be understandable.

The dry air duct double sleeve according to an embodiment of the present invention for realizing the above-described problems is first buried in the slab (S) forming the interlayer of the building so as to increase the ventilation function in case of fire to guide air between the floors. The base head 101, the base tail 102 and the base casing 103 are provided to have a predetermined length corresponding to the thickness of (S), and the base head 101 and the base casing 103 inside the base casing 103 and the A base hollow 104 with an empty inside is formed between the base tail 102, and a base head protrusion 105 protruding outward from the upper base head 101 is provided, and the base head 101 A horizontal support member 106 that extends bent in an inward direction in which the base hollow 104 is located, and an auxiliary sleeve 200 that is vertically bent in a direction directly above where the base head 101 is located in the horizontal support member 106 A base sleeve 100 provided with a vertical support member 108 so that an insertion guide 107 is formed to guide the ); It may include.

Here, the auxiliary hollow 201 to extend the air guide path so as to extend the base hollow 104 formed in the base sleeve 100 by being inserted through the inner diameter of the rim of the base head 101 and the insertion guide 107 ) The auxiliary sleeve 200 is provided; It may include.

At this time, the base casing 103 is provided in a cylindrical shape having a circular cross section, and a protruding rib 103a is further included on an outer circumferential surface opposite the base hollow 104, and the protruding rib 103a is the base casing 103 It may be characterized in that it is provided in a spiral while rotating the outer peripheral surface of the 360 °.

On the other hand, the base tail portion 102 is further provided with a base tail protruding portion 109 that is vertically bent to the outside of the base casing 103 to protrude, the base tail protruding portion 109 is the base from the ground direction upward It may be inserted into the casing 103 or provided to be coupled to the base casing 103 by spot welding.

In addition, the horizontal support member 106 has a center of the horizontal support member 106 than the height of a portion where the horizontal support member 106 meets the base casing 103 and a portion where the vertical support member 108 meets. It is characterized in that at least one of a curved portion 106a or an inclined portion 106b is provided on both sides of the center so that the horizontal support member 106 has a U-shaped (U) shape or an inverted triangle shape. You can do it.

At this time, a refractory material 107a is further included on the bottom surface of the insertion guider 107, which is an upper surface of the horizontal support member 106, but the refractory material 107a extends from the bottom surface of the insertion guider 107 to the head 101 It may be provided and provided to partially fill the height of the insertion guider 107.

On the other hand, the base casing 103 is formed to protrude to the outside of the base hollow 104 of the base casing 103 at a position where the horizontal support member 106 is coupled to the first coupling space 103b ) May be characterized in that it is provided.

At this time, the base casing 103 is characterized in that a second coupling space 103c is provided inwardly by protruding a side surface to the outside of the base casing 103 in the lower direction of the first coupling space 103b. can do.

In addition, the first and second coupling spaces 103a and 103b are in a direction from the base casing 103 to the horizontal support member 106

Based on the height at which the horizontal support member 106 is disposed, the cross-section is provided at both the upper and lower portions of the base casing 103 to be inclined with the traveling direction of the base casing 103 toward the horizontal support member 106. The auxiliary sleeve 200 is provided to form a triangle or curved to form an arc shape, and the auxiliary sleeve 200 further includes an auxiliary protrusion 202 on a side surface, and the auxiliary protrusion 202 and the base head protrusion 105 ) Is provided with a coupling member 203, a protruding wedge 202a is formed on the lower surface of the auxiliary protrusion 202, and a protruding wedge 202a is formed on the upper surface of the base head protrusion 105. It may be characterized in that the coupling recess (105a) is provided.

Accordingly, the present invention provides a dry air duct double sleeve,

First, the base head 101, the base tail 102, and the base casing to have a predetermined length corresponding to the thickness of the slab (S) so as to be buried in the slab (S) forming between the floors to guide air between the floors ( 103) is provided inside the horizontal support member 106 and the vertical support member 108 is disposed, there is an effect of fundamentally preventing smoke leakage in case of fire.

Second, the auxiliary hollow 201 to extend the air guide path so as to extend the base hollow 104 formed in the base sleeve 100 by being inserted through the inner diameter of the rim of the base head 101 and the insertion guide 107 Since the construction is simple using the auxiliary sleeve 200 provided, there is an effect that even a beginner installer can simply install it.

Third, the height of the center of the horizontal support member 106 is lower than the height of the region where the horizontal support member 106 meets the base casing 103 and the region where the vertical support member 108 meets. It is easy to settle, and the ventilation and sealing effect can be maintained even in the heat of fire.

Fourth, a side protruding outward of the base hollow 104 of the base casing 103 at the position where the horizontal support member 106 is coupled to the base casing 103 to form a coupling space inside is sufficient. It can be filled with the ventilation sealing material, and stabilizes the structure of the horizontal support member 106.

Fifth, the auxiliary sleeve 200 inserted into the base sleeve 100 is provided with an auxiliary protrusion 202 on the side, and a coupling member 203 between the auxiliary protrusion 202 and the base head protrusion 105 It has ventilation ability in case of fire.

Sixth, an auxiliary sleeve and a base sleeve having a protruding wedge 202a formed on the lower surface of the auxiliary protrusion 202 and having a coupling recess 105a provided on the upper surface of the base head protrusion 105 so as to engage with the protruding wedge 202a Has the effect of not twisting each other by being firmly bonded.

On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. I will be able to.

The following drawings attached to the present specification illustrate a preferred embodiment of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in such drawings. It is limited and should not be interpreted.
1 to 4 are perspective views for explaining a conventional general dry air duct sleeve.
5 to 7 are cross-sectional views for explaining the configuration of a dry air duct double sleeve according to an embodiment of the present invention.
8 is a conceptual diagram for explaining the content of the dry air duct double sleeve according to an embodiment of the present invention to smoke in a fire.
9 to 11 are cross-sectional views illustrating first and second coupling spaces of a dry air duct double sleeve according to another embodiment of the present invention.
12 to 15 are cross-sectional views for explaining the configuration and role of an auxiliary protrusion in a dry air duct double sleeve according to another exemplary embodiment of the present invention.
16 and 17 are cross-sectional views for explaining the combination of the auxiliary protrusion and the base head protrusion in the dry air duct double sleeve according to another exemplary embodiment of the present invention.

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed in the present specification are merely illustrative for the purpose of describing the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention are It may be implemented in various forms and is not limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention can apply various changes and have various forms, embodiments are illustrated in the drawings and will be described in detail in the present specification. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and includes all changes, equivalents, or substitutes included in the spirit and scope of the present invention.

1 to 4 are perspective views for explaining a conventional dry air duct sleeve, FIGS. 5 to 7 are cross-sectional views for explaining the configuration of a dry air duct double sleeve according to an embodiment of the present invention, and FIG. 8 is A conceptual diagram for explaining the content of the dry air duct double sleeve according to a preferred embodiment of the present invention to smoke ventilation in case of fire, and FIGS. 9 to 11 are the first and second dry air duct double sleeves according to another preferred embodiment of the present invention. 2 is a cross-sectional view for explaining the coupling space, and FIGS. 12 to 15 are cross-sectional views for explaining the configuration and role of the auxiliary protrusion in the dry air duct double sleeve according to another preferred embodiment of the present invention, and FIGS. 16 and 17 are A cross-sectional view for explaining the combination of the auxiliary protrusion and the base head protrusion in the dry air duct double sleeve according to another exemplary embodiment of the present invention.

The dry air duct system is buried in a slab (S) forming an interlayer of a building, as shown in FIG. 1, and a buried sleeve (20) having a predetermined length corresponding to the thickness of the slab (S) so as to guide air between the floors. And an insertion sleeve 10 inserted into the buried sleeve 20.

As shown in FIG. 2, in the conventional air duct system, smoke generated in the event of a fire leaks from the area where the buried sleeve 20 and the insertion sleeve 10 meet, and quickly spreads to other layers, causing death. will be.

In order to solve this problem, conventionally, as shown in FIG. 3, a sealing material (F) was constructed at a portion where the buried sleeve 20 and the insertion sleeve 10 meet.

However, even after such construction, as shown in FIG. 4, the sealing material (F) melts in the event of a fire, and the smoke (A) is leaked to another layer, which does not satisfy the smoke propagation time required by the related law.

In order to solve the above-described problem, the dry air duct double sleeve according to an embodiment of the present invention first corresponds to the thickness of the slab (S) to guide air between the floors by being buried in the slab (S) forming an interlayer of the building. A base head 101, a base tail 102 and a base casing 103 are provided to have a predetermined length, and between the base head 101 and the base tail 102 inside the base casing 103 A base hollow 104 with an empty inside is formed, a base head protrusion 105 protruding outward from the upper base head 101 is provided, and the base hollow 104 which is a position directly under the base head 101 ), the horizontal support member 106 extending in the inward direction in which the) is located, and the horizontal support member 106, the insertion guide 107 so as to guide the auxiliary sleeve 200 by being vertically bent in the direction in which the base head 101 is located. ) Is provided with a base sleeve 100 including a vertical support 108 so that it is formed.

That is, as shown in FIG. 4, a length corresponding to the thickness of the slab S and a base hollow 104 through which smoke or air flows are formed.

At this time, it is preferable that the base casing 103 is formed in a cylindrical shape having a circular cross section to have a maximum cross-sectional area compared to the circumference of the cross-section to minimize flow efficiency and material waste.

However, in the present invention, it should be understood that the shape of the cross section is not limited to either circular or square.

Here, as shown in FIG. 5, the base hollow 104 formed in the base sleeve 100 by being inserted through the inner diameter of the rim of the base head 101 and the insertion guide 107 is extended to form an air guide path. The auxiliary sleeve 200 is configured to extend the auxiliary hollow 201 is formed.

The base sleeve 100 and the auxiliary sleeve 200 provided in this way are coupled as shown in FIG. 6.

At this time, the base sleeve 100 and the auxiliary sleeve 200 are filled with the refractory material 107a to the height of the vertical support material 108 as shown in FIG. 7 to completely fill the insertion guider 107. It may be equipped.

Here, the base casing 103 is provided in a cylindrical shape having a circular cross section, and a protruding rib 103a is further included on an outer circumferential surface opposite to the base hollow 104, and the protruding rib 103a is the base casing 103 It is provided in a spiral shape while rotating the outer circumferential surface of the slab (S) by increasing the coupling cross-sectional area of the base casing 103 embedded in the slab (S) so that the coupling is solid.

In addition, the base tail portion 102 is further provided with a base tail protruding portion 109 vertically bent to the outside of the base casing 103 and protruding as shown in FIG. 5, the base tail protruding portion 109 It is provided to be inserted into the base casing 103 in the upper direction from the direction or coupled to the base casing 103 by spot welding to form the lower part between layers, that is, the finish of the lower ceiling, and the base sleeve 100 at the lower layer It is provided so that the auxiliary sleeve 200 can be inserted in a direct direction.

As shown in Fig. 8, in the event of a fire, the fireproof material 107a is protected inside the insertion guider 107 to serve as a smoke sealant.

That is, in the related art, the sealant (F) was not able to seal the smoke due to burning or melting, but the fireproof material 107a according to an embodiment of the present invention is provided so as to faithfully play a role of smoking in a fire.

Here, it is preferable that the refractory material 107a is made of a material that is expanded by fire heat but does not burn.

Here, the horizontal support member 106 is higher than the height of the portion where the horizontal support member 106 meets the base casing 103 and the portion where the vertical support member 108 meets, as shown in FIGS. 9 to 12. The horizontal support member 106 is provided with a low center height so that the horizontal support member 106 has a U-shaped (U) or an inverted triangle shape such that a curved portion 106a or an inclined portion 106b At least any one of them is provided.

In this way, by lowering the center of the upper surface of the horizontal support member 106, the refractory material 107a and the lower end of the auxiliary sleeve 200 are stably seated to completely seal the smoke in case of fire.

At this time, a refractory material 107a is further included on the bottom surface of the insertion guider 107, which is an upper surface of the horizontal support member 106, but the refractory material 107a extends from the bottom surface of the insertion guider 107 to the head 101 It is also desirable to be provided so as to partially fill the height of the insertion guider 107.

On the other hand, the base casing 103 is formed to protrude to the outside of the base hollow 104 of the base casing 103 at the position where the horizontal support member 106 is coupled as shown in FIG. The first coupling space 103b is provided to increase the coupling force between the base casing 103 and the slab S, and at the same time ensure a sufficient space for filling the refractory material 107a.

At this time, the base casing 103 has a side protruding outwardly of the base casing 103 in the lower direction of the first coupling space 103b, as shown in FIG. 10, so that the second coupling space 103c is formed inward. ) May be formed.

In addition, the first and second coupling spaces 103a and 103b are the base casing 103 based on the height at which the horizontal support member 106 is disposed in the direction of the horizontal support member 106 in the base casing 103 ) In the direction of the horizontal support member 106 at both the top and bottom of the base casing 103 so as to be inclined with the traveling direction of the base casing 103 to form a triangular or curved cross section to form an arc shape, and the auxiliary The sleeve 200 is further provided with an auxiliary protrusion 202 on the side surface, a coupling member 203 is provided between the auxiliary protrusion 202 and the base head protrusion 105, and the lower surface of the auxiliary protrusion 202 A protruding wedge 202a is formed, and a coupling recess 105a is provided on an upper surface of the base head protrusion 105 so as to mesh with the protruding wedge 202a.

That is, as shown in Figs. 14 to 15, the coupling member 203 serves as a flame retardant or heat dissipation during a fire, and at the same time, the base sleeve 100 and the auxiliary sleeve 200 are firmly coupled.

Here, as shown in FIGS. 15 and 16, the base sleeve 100 and the auxiliary sleeve 200 form irregularities on the coupling surface to prevent twisting after construction, thereby strengthening the coupling structure.

In addition, by coupling through the coupling recess (105a) and the protruding wedge (202a), even a chokeum operator can simply handle the coupling position of the base sleeve 100 and the auxiliary sleeve 200 at the level of a professional worker without mistakes. will be.

Here, it is also preferable that the coupling recesses 105a and the protruding wedges 202a are provided radially with one or more at a predetermined interval.

According to the dry air duct double sleeve according to the present invention described above, the base head to have a predetermined length corresponding to the thickness of the slab (S) so as to guide air between the floors by being buried in the slab (S) forming between the floors of the building. (101), a horizontal support member 106 and a vertical support member 108 are disposed inside the base tail portion 102 and the base casing 103 to prevent smoke leakage in the event of a fire, and the base head ( 101) An auxiliary sleeve provided with an auxiliary hollow 201 to extend the air guide path so as to extend the base hollow 104 formed in the base sleeve 100 by being inserted through the inner diameter of the rim and the insertion guider 107 ( 200) is easy to use, so even a beginner installer can easily install it, and a part where the horizontal support member 106 meets the base casing 103 and the vertical support member 108 meets Since the height of the center of the horizontal support member 106 is lower than the height of the unit, it is easy to install the ventilation sealant and the ventilation sealing effect is maintained even in the heat of a fire, and the horizontal support member 106 is coupled to the base casing 103 The side of the base casing 103 protrudes to the outside of the base hollow 104 at the position where a coupling space is formed inside, so that the ventilation sealant can be sufficiently filled, and the structure of the horizontal support member 106 is Stable, and the auxiliary sleeve 200 inserted into the base sleeve 100 is provided with an auxiliary protrusion 202 on the side, and a coupling member 203 between the auxiliary protrusion 202 and the base head protrusion 105 In the event of a fire, a protruding wedge 202a is formed on the lower surface of the auxiliary protrusion 202, and a coupling recess 105a is provided on the upper surface of the base head protrusion 105 so as to engage with the protruding wedge 202a. The auxiliary sleeve and the base sleeve are firmly coupled to each other, so that the effect of not twisting each other is expected.

The present invention has been described above through a preferred embodiment, but the above-described embodiment is only illustrative of the technical idea of the present invention, and various changes are possible within the scope not departing from the technical idea of the present invention. Anyone with ordinary knowledge will understand. Therefore, the scope of protection of the present invention should be interpreted not by specific embodiments, but by the matters described in the claims, and all technical ideas within the scope corresponding thereto should be interpreted as being included in the scope of the present invention.

100 ... base sleeve
101 ... base tofu
102 ... bass tail
103 ... base casing
103a ... protruding rib
103b ... first coupling space
103c ... second coupling space
104 ... bass hollow
105 ... bass head protrusion
105a ... mating
106 ... horizontal support
106a ... bend
106b ... slope
107 ... insertion guider
107a ... refractory
108 ... vertical support
109 ... Base tail protrusion
200 ... auxiliary sleeve
201 ... secondary hollow
202 ... auxiliary protrusion
202a ... protruding wedge
203 ... coupling member
10 ... conventional insert sleeve
20 ... conventional buried sleeves
S... slab
A... acting
F ... sealing material

Claims (8)

The base head 101, the base tail 102, and the base casing 103 to have a predetermined length corresponding to the thickness of the slab (S) so as to be buried in the slab (S) forming the building floor to guide air between the floors. Is provided, and between the base head 101 and the base tail 102, which are inside the base casing 103, a base hollow 104 with an empty inside is formed, and from the upper base head 101 to the outside A horizontal support member 106 and a horizontal support member 106 that are provided with a protruding base head protrusion 105 and extend inwardly bent in an inward direction in which the base hollow 104, which is a position directly under the base head 101, is located. A base sleeve 100 provided with a vertical support member 108 so that the insertion guider 107 is formed to guide the auxiliary sleeve 200 by being vertically bent in a direction in which the base head 101 is located; And
An auxiliary hollow 201 is provided to extend the air guide path by extending the base hollow 104 formed in the base sleeve 100 by being inserted through the inner diameter of the rim of the base head 101 and the insertion guide 107 The auxiliary sleeve 200; a dry air duct double sleeve containing.
The method of claim 1,
The base casing 103 is provided in a cylindrical shape having a circular cross section and further includes a protruding rib 103a on an outer circumferential surface opposite to the base hollow 104, and the protruding rib 103a is an outer circumferential surface of the base casing 103 Dry air duct double sleeve, characterized in that provided in a spiral while rotating 360°.
The method of claim 1,
The base tail part 102 is further provided with a base tail protruding part 109 that is vertically bent to the outside of the base casing 103 to protrude, and the base tail protruding part 109 is provided with the base casing ( Dry air duct double sleeve, characterized in that provided to be inserted into the base casing 103 or coupled to the base casing 103 by spot welding.
The method of claim 1,
The horizontal support member 106,
The horizontal support member 106 is provided with a lower height of the center of the horizontal support member 106 than the height of a region where the horizontal support member 106 meets the base casing 103 and the vertical support member 108 meets the horizontal support member ( A dry air duct double sleeve, characterized in that at least one of a curved portion 106a or an inclined portion 106b is provided on both sides of the center so that the upper cross section of 106) is formed in a U-shaped (U) or an inverted triangle.
The method of claim 1,
A refractory material 107a is further included on the bottom surface of the insertion guider 107, which is the upper surface of the horizontal support member 106, but the refractory material 107a is provided from the bottom surface of the insertion guider 107 to the head 101 Dry air duct double sleeve, characterized in that provided to partially fill the height of the insertion guide (107).
The method of claim 1,
The base casing 103,
Dry type, characterized in that a first coupling space (103b) is provided inwardly by protruding from the outer side of the base hollow 104 of the base casing (103) at the position where the horizontal support member (106) is coupled Air duct double sleeve.
The method of claim 6,
The base casing 103,
Dry air duct double sleeve, characterized in that a second coupling space (103c) is provided inwardly by protruding from the outer side of the base casing (103) in a lower direction of the first coupling space (103b).
The method according to any one of claims 6 or 7,
The first and second coupling spaces 103a and 103b,
From the base casing 103 to the horizontal support member 106, the horizontal support member 106 direction from both the top and the bottom of the base casing 103 based on the height at which the horizontal support member 106 is disposed The base casing (103) is provided to be inclined with the traveling direction of the base casing (103) to form a triangular or curved cross section to form an arc shape, and the auxiliary sleeve (200) further includes an auxiliary protrusion (202) on the side surface. And a coupling member 203 is provided between the auxiliary protrusion 202 and the base head protrusion 105, and a protruding wedge 202a is formed on the lower surface of the auxiliary protrusion 202, and the base head protrusion Dry air duct double sleeve, characterized in that the coupling recess (105a) is provided so as to mesh with the protruding wedge (202a) on the upper surface of (105).

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