JP2007195365A - Loading material for fire limits - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a loading material for fire limits having firesafety which is high in reliability for a long time. <P>SOLUTION: The loading material A for the fire limits is filled in a gap between an inner face of an insertion hole B1 formed at a support body B and an outer face of a lengthy insertion material C to be inserted into the insertion hole B1, wherein a thermal expansible fire-resistive material sheet 2 which includes a thermal expansible fire-resistive material and is elastically deformable is provided on at least both faces of a cotton massive noncombustible block 1 consisting of rock wool or glass wool, and the loading material includes a restraining means 3 to restrain the noncombustible block 1 and the thermal expansible fire-resistive material sheet 2 in a massive state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a filler for a fireproof compartment that is filled in a gap between an inner surface of an insertion hole formed in a housing and an outer surface of a long insertion body that is inserted through the insertion hole.

Conventionally, this type of filler for fire protection compartments is mainly putty-like materials containing fire-resistant materials, but putty-like materials have a clay-like material property, so the filling part is filled without any gaps. There is a problem that it takes time to work.
Therefore, recently, a putty-like soft thermal expansion refractory material sheet in which a thermal expansion material such as graphite is kneaded with a base resin such as butyl rubber is laminated on one side of a fireproof material block body such as a ceramic fiber blanket. Filling material for fireproof compartments for insertion holes that wrap the body in a bag body has been developed, and many are packed in the gap between the insertion hole formed in the housing and the long insertion body inserted through this The thing which can close a clearance gap by filling is developed (for example, refer patent document 1).

Japanese Patent Laid-Open No. 2002-247735 (page 3-4, FIGS. 1 and 2)

In such fillers for fire prevention compartments, the thermal expansion of the soft thermal expansion refractory material sheet corresponds to the volume reduction due to fire or melting of the long insertion body (resin pipe or coated cable). It is desirable to delay the spread of fire by maintaining the closed state of the hole.
Therefore, it is desirable to fill the insertion hole without any gaps. However, in the conventional one, since a putty-like thermally expandable refractory sheet is laminated on a ceramic fiber blanket, for example, a thermally expandable refractory sheet When the ceramic fiber blanket is placed vertically underneath, the heat-expandable refractory material sheet is heavy and easily deformed during long-term use. As a result, the overall volume of the filler for fire prevention compartments is reduced, creating gaps that allow the insertion holes to communicate with each other. There is a problem that can not be formed.
Moreover, in the case where the thermally expandable refractory sheet and the ceramic fiber blanket are horizontally disposed, the thermally expandable refractory sheet that is a putty-like sheet body is disposed vertically, and in such a laminated state, There is a problem that it is difficult to maintain the laminated state for a long period of time due to deformation due to its own weight, and it is impossible to form the thermal expansion state expected in the event of a fire.
Therefore, the actual filler for fire protection compartments is a product structure that does not cause the above-mentioned problems by reducing the weight of the putty-like thermally expandable refractory material sheet and reducing the weight, and putty-like thermally expandable refractory material There is a problem that it is difficult to improve the disaster prevention performance of the gap between the insertion hole and the long insertion body inserted through the insertion hole by thickening or multilayering the sheet.
In addition, in the heat-expandable refractory sheet having a putty-like viscosity, it is in contact with a long insertion body that is inserted through the insertion hole mainly through an air-permeable bag body such as a nonwoven fabric. Since the heat-expandable refractory material sheet is generally an organic substance, a problem has been pointed out that when the long insertion body is a synthetic resin pipe and used at a high temperature, the synthetic resin pipe or the like is chemically affected.
This invention is made | formed in view of said situation, The place made into the objective is to provide the filler for fire prevention compartments provided with the highly reliable fire prevention property over a long period of time.

  The characteristic configuration of the first filler for the fire protection compartment according to the present invention is a configuration in which the gap is formed between the inner surface of the insertion hole formed in the housing and the outer surface of the long insertion body inserted through the insertion hole. A felt-like heat-expandable fire-resistant material sheet provided with a heat-expandable fire-resistant material is provided on at least both surfaces of a cotton lump-like incombustible block made of rock wool or glass wool. This is in that a restraining means for restraining in a united state is provided.

According to the above characteristic configuration, the long insertion body is thermally expanded by filling the gap between the inner surface of the insertion hole and the long insertion body in a state where the thermally expandable refractory sheet side faces the long insertion body. The filling state in which the refractory refractory material sheet surrounds can be formed, and the closed state in which the thermally expandable refractory material sheet does not exist on the opening side of the insertion hole can be formed.
If the fire heat of the fire reaches the long insertion body of the insertion hole part, the thermally expandable refractory material sheet surrounds the long insertion body inside the gap from the opening side of the insertion hole. The refractory sheet expands thermally in a direction that compensates for the loss occurrence portion of the long insert.
As a result, it is possible to delay the fire from the room where the fire occurred to the next room.
Moreover, since the heat-expandable refractory sheet is felt and lightweight, it is transformed into a non-combustible block, for example, when a non-combustible block is placed under the heat-expandable refractory sheet in long-term use etc. Even if there is a part that is easy to do, there is no deformation that reduces the volume of the incombustible block, and the gap between the insertion hole and the long insertion body that is inserted through this is kept closed for a long period of time. can do. Specifically, this corresponds to the filling of the gap between the insertion hole formed in the horizontal direction, which is a wall hole of the housing, and the long insertion body inserted through the insertion hole.
Even when the thermally expandable refractory sheet and the non-combustible block are horizontally arranged, the thermally expandable refractory sheet is elastic and hardly deforms its own weight. It is possible to maintain the closed state of the gap between the long insertion body inserted into the gap. Specifically, this corresponds to the filling of the gap between the insertion hole formed in the vertical direction, which is the floor hole of the housing, and the long insertion body inserted through the insertion hole.
Therefore, it becomes possible to provide a thermally expandable refractory material sheet on at least both surfaces of the nonflammable block.

Therefore, it is possible to improve the disaster prevention performance of the closed portion of the insertion hole through which the long insertion body of this kind and the casing is inserted, and to maintain the disaster prevention quality of the closed portion over a long period of time.
In addition, at least both surfaces of a nonflammable block, for example, when the nonflammable block has a cubic shape, two sides of the side surface and one side of the back side thereof, or one side surface corresponding to the corner portion are orthogonal to this. When two sides of one side correspond and an incombustible block is an elliptic cylinder shape, a half circumference surface which divides a circumference into two corresponds.

  A characteristic configuration of the second filler for fireproof compartment according to the present invention is that the thermally expandable refractory material sheet is provided on a side surface of the incombustible block leaving an end face on the opening side of the insertion hole.

  According to the above-described characteristic configuration, when fire heat reaches the long insertion body of the insertion hole, the heat-expandable refractory material sheet mainly connects the inner surface of the insertion hole and the long insertion body, that is, the length, mainly inside the gap. Thermal expansion in a direction that compensates for the loss occurrence portion of the shank insert.

  Therefore, there is no waste in product materials such as the heat-expandable refractory material sheet part that does not act on the gap portion compared to the filler for the fire-proof compartment provided with the heat-expandable fire-proof sheet in the protruding state on the opening side. Improvements can be made.

  As a characteristic configuration of the third filler for fire prevention compartments of the present invention, the length in the filling direction of the incombustible block is formed to have the same or substantially the same dimension as the penetration length of the insertion hole.

  According to the above characteristic configuration, even if an emergency fire is encountered, the heat-expandable refractory material sheet can be thermally expanded only in the insertion hole to close the insertion hole.

  Therefore, when fire heat reaches the long insertion body of the insertion hole, it can be surely closed by the thermally expandable refractory material sheet in the insertion hole. Compared to the case where the length of the insertion hole is longer than the penetration length, it has the effect of providing the maximum fire resistance while reducing the cost.

  As a characteristic configuration of the fourth filler for a fire protection compartment according to the present invention, the thermally expandable refractory material sheet is formed by mixing a granular thermal expansion material into rock wool.

  According to the said characteristic structure, a thermally expansible refractory material sheet can be formed using the rock wool which is a raw material cheaper than a granular material thermal expansion material.

  Accordingly, it is possible to construct a fireproof compartment filler that is highly reliable and inexpensive as a whole.

  As a characteristic configuration of the fifth filler for fire protection compartment of the present invention, the restraining means is composed of a combustible material.

  According to the above characteristic configuration, when the restraining means is made of, for example, a paper material, a cloth material, or a thermoplastic synthetic resin material, the non-combustible block and the heat-expandable refractory material due to melting or combustion due to fire heat. The restraint state with the sheet is released, and the thermal expansion of the thermally expandable refractory material sheet is not hindered.

  Therefore, no matter where fire heat is applied to any part of the thermally expandable refractory material, the thermal expansion of the thermally expandable refractory material sheet is not hindered by the restraint means, so when using nonflammable restraint means Compared to the above, it is possible to improve the fire prevention quality.

  As a characteristic configuration of the sixth fireproofing compartment filler of the present invention, the restraining means is composed of a bag body capable of packaging the incombustible block and the thermally expandable refractory material sheet.

  According to the above characteristic configuration, the non-combustible block and the thermally expandable refractory material sheet are obtained by a simple operation of housing the incombustible block and the thermally expandable refractory material sheet in the bag at the time of manufacturing the filler for the fire prevention compartment. It can be in a single constrained state and can be handled as one aggregate.

  Therefore, it is possible to improve the handleability when filling the gap between the insertion hole and the long insertion body at the time of inventory, transportation, and the like.

  The feature of the seventh filling method of the filler for fire protection compartment of the present invention is that the felt-like non-combustible block made of rock wool or glass wool, the side faced to the long insertion body side at least when filling it, and the opposite side The thermal expansion refractory material sheet with the thermal expansion refractory material arranged on the side surface of the side is constrained in a united state by a restraining means, and the filler for the fire protection compartment is long, and the thermal expansion refractory material sheet side is long. It is in the point which fills in the state which turned to the scale insertion body.

According to the above characteristic configuration, the opening side of the insertion hole is filled by filling the gap between the inner surface of the insertion hole and the long insertion body into a state in which the thermally expandable refractory sheet side faces the long insertion body. In the closed state in which no thermally expandable refractory material sheet exists.
And if fire heat of fire reaches the long insertion body of the insertion hole part, provide a thermally expandable fireproof material sheet on the side facing the long insertion body of the incombustible block and the opposite side Therefore, the heat-expandable refractory material sheet is thermally expanded inside the gap from the opening side of the insertion hole, so that the fire loss of the long insertion member can be compensated and the fire spread can be delayed.

  Therefore, it is possible to improve the filling workability of the filler for the fire prevention compartment into the insertion hole through which the long insertion body is inserted and the fire prevention compartmentability of the insertion hole through which the long insertion body is inserted.

  According to the eighth aspect of the present invention, the filling method for the filler for the fire prevention compartment is filled with the filler for the fire prevention compartment in the gap formed between the inner surface of the insertion hole and the long insertion body, The remaining gap is to be filled with a thermally expandable refractory material sheet having flexibility.

  According to the above characteristic configuration, the large gap between the insertion hole and the long insertion body is filled with the filler for the fire prevention compartment, and the remaining gap is filled with the thermally expandable refractory material sheet. By doing so, it can be reliably filled with good setup.

  Therefore, it is possible to improve the workability and the quality of closing the gap between the insertion hole and the long insertion body.

  Hereinafter, the filler for fire prevention compartments to which the present invention is applied will be described with reference to the drawings.

[First Embodiment]
In this 1st Embodiment, as shown in FIGS. 1-5, with respect to insertion hole B1 which is a floor hole of the housing | casing B, for example from piping group C1 which concentrated many air-conditioning piping C1a on the mount frame C2. Filling material A for fire protection compartment filled in the gap S between the inner surface of the insertion hole B1 through which the configured long insertion body C is inserted and the exposed outer surface of the long insertion body C inserted through the insertion hole B1. Will be described. Here, as shown in FIG. 5, the space K sandwiched between the air conditioning pipes C1a is substantially closed from the outside along the longitudinal direction, and therefore does not constitute a gap for filling the filler A for the fire prevention compartment.

  Moreover, since the filler A for fire prevention compartments is filled in the floor hole, the filler support metal fitting D is used for preventing dropping.

  The filler support fitting D can receive and support the fire-proof filler A filled in the gap S between the rectangular insertion hole B1 penetrating the housing B and the long insertion body C inserted therethrough. Therefore, as shown in FIG. 1 and FIG. 2, a filler receiving portion D1 formed in a U-shape in plan view corresponding to the shape of both ends of the insertion hole B1, and the outer peripheral edge of the receiving portion D1 The latching portion D3 is formed with a latching portion D3 formed with a latching portion D2 that can be latched and screwed to the opening edge portion of the insertion hole B1 that is integrally extended from three places.

  In this embodiment, the air conditioning pipe C1a, which is a constituent member of the long insertion body C, is a pipe composed of a feed pipe, a return pipe, a drain pipe, and a control cable that pipes the indoor unit and the outdoor unit of the air conditioner. Both return pipes have a pipe structure in which a heat insulating layer made of a synthetic resin is coated around a central metal pipe. Here, the drain pipe and the control cable are not shown.

  As shown in FIG. 1, the gantry C2, which is a constituent member of the long insertion body C, is provided along the piping route of the air conditioning piping, and the piping is stretched at intervals along the piping route. And a side plate C2b disposed at both ends of the plate-like platform C2a.

  The long insertion body 2 is inserted through the center of the hole with respect to the insertion hole B1, and an annular gap S is formed around the long insertion body C with the inner surface of the insertion hole B1.

As shown in FIG. 2, the filler A for the fire prevention compartment of this embodiment is detachable between the side plate C2b of the gantry C2 and the inner surface of the insertion hole B1 facing this, so as to be detachable at the full width portion of the insertion hole B1. A first fireproofing compartment filler A1 formed in a fillable size;
The first fire protection compartment filling material A1 is filled between the side plate C2b of the gantry C2 and the inner surface of the insertion hole B1 facing it at both ends of the insertion hole B1. A filler A2 for the second fireproof compartment that can be removably filled between the materials A1,
It is thinner than the wall thickness orthogonal to the filling direction of the second fire compartment filling material A2, and is approximately half the length of the second fire compartment filling material A2, and the first fire compartment filling material A1 is In a state of being filled between the side plate C2b of the gantry C2 at the both ends of the insertion hole B1 and the inner surface of the insertion hole B1 facing the same, the portion between the first fire prevention compartment fillers A1, the piping C1 and the first A filler A3 for the third fire protection compartment that can be removably filled in the gap S portion surrounded by the filler A2 for the fire prevention compartment;
The remaining subdivided gap S formed between the long insertion body C in the insertion hole B1 has a size and form such as at least one supplementary thermally expandable refractory material sheet 4 for flexibility. It is configured with four different types.

  The first to third fillers for fire prevention compartments A1, A2 and A3 are each provided in a product so that there is no shortage in filling even when the area of the long insertion body C is the smallest with respect to the insertion hole B1. The product configuration is prepared.

  Here, the length L1 in the filling direction of the filler A1 for the first to third fireproof compartments, which is the filler A for the fireproof compartment, is formed to be the same as or substantially the same as the penetration length L2 of the insertion hole B1. The length L3 orthogonal to the filling direction is the same as or substantially the same as the distance L4 between the inner surface of the insertion hole B1 and the side plate C2b of the gantry C2. The separation distance L4 between the inner surface of the insertion hole B1 and the side plate C2b of the gantry C2 is defined as the same distance dimension even if the size of the insertion hole B1 is different.

  As shown in FIG. 2, the first to third fillers A1, A2 and A3 are side surfaces facing the long insertion body C side at least when filling the non-combustible block 1 formed in a rectangular cubic shape. And a thermally expandable refractory material sheet 2 provided with a thermally expandable refractory material on the opposite side surface, and the non-combustible block 1 and the thermally expandable refractory material sheet 2 from a bag body constrained in a bundled state. The restraining means 3 is configured.

  The non-combustible block 1 is a cotton lump in which short fibers of rock wool or glass wool are entangled with each other, and is easily deformed and compressed and is easily adapted to the uneven surface.

  As shown in FIG. 6, the incombustible block 1 is provided with a long thermally expandable refractory material sheet 2 having a width corresponding to the length of the incombustible block 1 wound in two layers. It has been. In this state, the thermally expandable refractory material sheet 2 naturally corresponds to the side surface facing the long insertion member C side during filling and the side surface opposite to the side surface.

  The heat-expandable fireproof material sheet 2 is an example of a heat-expandable material that mainly expands in a short fiber of rock wool having heat insulation, which is an example of a fireproof material and a soundproof material, so as to expand in a fire. It is made of a wet vermiculite powder containing fired vermiculite powder and is lightweight and flexible enough to be elastically deformed.

  Further, in a state where the thermally expandable refractory material sheet 2 is wound around the incombustible block 1, the incombustible block 1 is prevented from being deformed by receiving an external force due to the elastic force of the thermally expandable refractory material sheet 2. Even if the non-combustible block 1 side is deformed and the volume is reduced, the heat-expandable fireproof material sheet 2 itself is heated as long as the deformation force against the elastic force is not applied. The wound state of the inflatable refractory material sheet 2 is maintained, and the entire volume reduction in the first to third fillers A1, A2, and A3 for the fire prevention compartment is not caused. This maintains the volume state of the wound state of the heat-expandable refractory material sheet 2 at the time of filling for a long period of time and enables the fire-proofing and blocking property to be ensured.

  Furthermore, the heat-expandable refractory sheet 2 has a material property that is easily deformable and is easy to adjust to the uneven surface while being manufactured to a thickness of about 3 mm, which is easy to manufacture and cheap in terms of cost by wet papermaking. It is provided with material stability that prevents the sheet form from fluidizing or collapsing at low temperatures from high temperatures to low humidity to high humidity. Therefore, it has the advantage which can be ensured easily by winding the heat-expandable refractory material sheet 2 in the number of thick layers to ensure the volume necessary for the heat-expandable fireproof material sheet 2.

  The thermally expandable refractory material sheet 4 is made of, for example, the same material as the thermally expandable refractory material sheet 2 of the filler A for fire protection compartment having the hole length L2 of the insertion hole B1.

  In this embodiment, the bag body 3 as a restraining means has a bag capacity slightly larger than the volume of the non-combustible block 1 provided with the thermally expandable refractory material sheet 2, so that the non-combustible block 1 can be easily placed in the bag. The bag 3 is packed in a restrained state in which the direction of the incombustible block 1 cannot be changed in the bag 3.

  In addition, the bag 3 is made of a transparent polyethylene film, which is an example of a waterproof material, on the inner surface of the translucent non-woven fabric so as to be translucent and waterproof. The polymerization part is heat-sealed to form a bag. Therefore, it is possible to easily grasp the state in the bag from the outside, and it is possible for the user to easily determine in what state the thermally expandable refractory sheet 2 is in a wound state. .

Next, a method for filling the thermally expandable refractory material having such a configuration will be described.
First, as shown in FIGS. 3 and 4, the filler support fitting D is fixed with concrete screws d at both ends of the insertion hole B1 through which the long insertion body C is inserted.

  Next, as shown in FIGS. 2, 4, and 7, a felt-like incombustible made of rock wool or glass wool with respect to the gap S between the insertion hole B <b> 1 and the long insertion body C inserted through the insertion hole B <b> 1. Bag 3 having a heat-expandable fireproof material sheet 2 provided with a heat-expandable fireproof material disposed on a side surface facing the long insertion member C side and a side surface opposite to the side surface thereof. Then, the first to third fillers A1, A2, and A3, which are constrained in a united state, are filled with the thermally expandable refractory material sheet 2 facing the long insertion body C.

  Specifically, at both ends of the insertion hole B1, between the side plate C2b of the gantry C2 and the inner surface of the insertion hole B1 that faces the side plate C2, the first fire prevention compartment filler A1 is filled.

  Next, the first fireproof compartment filler A1 is filled between the side plate C2b of the gantry C2 and the inner surface of the insertion hole B1 facing the side plate C2b. The second fireproof compartment filler A2 is fitted into the inner surface of the hole.

  Next, the third fireproof compartment filler A3 is filled in the gap surrounded by the first fireproof compartment filler A1, the long insertion body C, and the second fire compartment filler A2.

  Next, a single thermally expandable refractory material sheet 4 having flexibility is inserted into the remaining subdivided gap S formed between the long insertion body C in the insertion hole B1 and the size of the gap S. Fill correspondingly. Specifically, if the size of the gap S is small, the thermally expandable refractory material sheet 4 is cut out according to the size of the hole and filled in the inserted state, and if larger, the gap S One or a plurality of laminated sheets of the thermally expandable refractory material sheet 4 are deformed into a gap shape and filled into a plugged state.

  According to such a filling method, the large gap S is filled with the filler A for fire prevention compartments, and the small subdivided gaps are filled with the single thermally expandable refractory material sheet 4 so as to be simple and quick. The insertion hole can be closed.

  Moreover, the filling material A for fireproof compartments in the filled state can construct a closed state in which the thermally expandable fireproof sheet 2 does not exist on the surface facing the opening side of the insertion hole.

  Therefore, in the fireproof compartment filler A filled in the insertion hole B1, in the event of a fire, the heat-expandable sheet 2 and the heat-expandable sheet 2 are concentrated in the gap S between the insertion hole B1 and the long insertion body C. The supplementary heat-expandable sheet 4 can be thermally expanded.

  Further, the large gap S between the insertion hole B1 and the long insertion body C is filled with the first to third fillers A1, A2, and A3, and the remaining gap is filled with heat for supplementation. By filling the expandable refractory material sheet 4, it can be filled in a closed state with good setup.

  In such a configuration, in the event of a fire, the thermal expansion refractory material sheet 2 surrounds the long insertion member C by filling the thermal expansion refractory material sheet with the thermal expansion refractory material sheet facing the long insertion member. The room which does not arise from the room side where the fire has occurred by being able to form the closed state where the thermal expansion refractory material sheet 2 does not exist in the opening side of the insertion hole B1 It is possible to prevent the early fire smoke from entering the side.

  And, the fire heat on the room side where the fire is generated reaches the insertion hole portion, and the heat insulating layer of the air-conditioning piping group C1 which is the long insertion body C is melted or burned out, so that the central metal tube is exposed.

  Corresponding to such a fire state, the corresponding bag 3 of the first to third fillers A1, A2 and A3 for the fire protection compartment is melted or burnt down, and the thermally expandable refractory sheet exposed to fire heat The two portions are thermally expanded and thermally expanded in the insertion hole B1, so that it is possible to delay the spread of the exposed portion through the insertion hole B1 to the next room by supplementing the exposed portion.

[Second Embodiment]
FIG. 9 shows a second embodiment to which the present invention is applied. A different part from the first embodiment will be described, and the same components are denoted by the same reference numerals and their details are omitted.
That is, in the first embodiment, the restraining means 3 in the first to third fillers A1, A2, and A3 for the fire prevention compartment is formed of a bag, but the present invention is not limited to this, and the nonflammable block 1 and the heat A laminate with the inflatable refractory material sheet 2 is wound around a non-flammable block 1 with a bundle 3A made of a flammable natural material or a synthetic resin material, such as paper material, cloth material, or string material. The heat-expandable refractory material sheet 2 is wound in the winding direction along the winding direction and wound in a direction crossing the winding direction, and the non-combustible block 1 and the heat-expandable refractory material sheet 2 are bound together. It may be configured.

[Another embodiment]
1) In each of the above embodiments, the example in which the insertion material B for the fire prevention compartment is filled in the insertion hole B1 including the floor hole through which the long insertion body C is inserted has been described. However, the present invention is not limited thereto, and FIG. As shown in FIG. 2, the filler A for fire protection compartment may be filled in the insertion hole B2 formed of a wall hole through which the long insertion body C is inserted.
In this case, unlike the case of the floor hole, there is no need to use the stopper fitting D that receives and supports the filler A for fire prevention compartments through the insertion hole B1.
In addition, in this other embodiment, the same code | symbol is attached | subjected to the component similar to each said embodiment, and the detail is abbreviate | omitted.

  2) In the above embodiment, the filler A for the fire prevention compartment is formed in the gap S between the long insertion body C composed of the piping group C1 such as the air conditioning piping group stretched on the gantry C2 and the insertion hole B1 through which the long insertion body C1 is inserted. However, the present invention is not limited to this, and the fire is prevented in the gap S between the long insertion body C composed of a piping group such as the air conditioning piping group C1 and the insertion hole B1 through which the long insertion body C is inserted. The partition filler A may be filled.

  3) In the above-described embodiment, the description has been given of filling the fire prevention compartment filler A into the gap between the piping group C1 in which a large number of air conditioning pipes C1a are gathered and the insertion hole B1 having a size through which the piping group C1 is inserted. The present invention is not limited to this, and is filled with a filling material A for a fire prevention compartment configured to have a size corresponding to a gap S between one or a plurality of air-conditioning pipes C1a and an insertion hole B1 of a size through which the piping is inserted. It may be a thing.

  4) In the above embodiment, in the first to third fillers A1, A2, and A3 constituting the filler A for fire prevention compartment, the non-combustible block 1 is filled with the thermally expandable refractory material sheet 2 at a long time. Although the description has been given of the winding of the side surface facing the insertion body side and the outer surface including the side surface on the opposite side, the side surface facing the long insertion body side when filling the non-combustible block 1 and the opposite side are not limited thereto. Even if it is the structure which provides the thermally expansible refractory material sheet 2 only in a side surface, the structure which provides the thermally expansible refractory material sheet 2 in all the outer surfaces of the nonflammable block 1 may be sufficient.

  5) In the first to third fillers A1, A2 and A3 for the fire protection compartment of the above embodiment, an example in which a thermally inflatable refractory material sheet is wound around the cubic incombustible block 1 along one direction has been described. However, as shown in FIG. 9 (a), one side 1a of the nonflammable block 1 and one side 1b of the back side of the nonflammable block 1, or one corresponding to the corner portion as shown in FIG. 9 (b). The structure which provides the thermally expansible fireproof material sheet | seat 2 in at least both surfaces of the nonflammable block 1, such as 2 sides of the side surface 1a and the one side surface 1c orthogonal to this may be sufficient.

  In this case, although not illustrated, in a state where the thermally expandable refractory material sheet 2 on either one of the two surfaces faces the long insertion body C, the insertion hole B1 and the long insertion body C inserted through the insertion hole B1 By filling the gap, it is possible to form a filled state in which the thermally expandable refractory material sheet 2 surrounds the long insertion body C along the annular gap S around the long insertion body C. Sometimes the thermal expansion of the thermally expandable refractory material sheet 2 can be effectively performed in the gap S.

Simplified exploded perspective view showing the insertion hole of the housing and the long insertion body inserted through the hole Simplified exploded perspective view showing the relationship between the filler for the fire prevention compartment with respect to the gap between the insertion hole and the long insertion hole Plan sectional view showing insertion hole and long insertion body Plan sectional view showing insertion hole, long insertion body and filler support bracket Plan sectional view showing insertion hole, long insertion body and filler for fire protection compartment Sectional drawing which shows the relationship between a nonflammable block and a heat-expandable sheet Longitudinal sectional view showing insertion hole, long insertion body and filler for fire prevention compartment Simplified perspective view showing filler for fire protection compartment (B) (b) is a simplified perspective view showing a modification of the filler for the fire prevention compartment Simplified perspective view showing restraint means of another embodiment Plan sectional drawing which shows the insertion hole of another embodiment, a long insertion body, and the filler for fire prevention compartments

Explanation of symbols

A Filler for fire protection compartment A1 Filler for first fire compartment A2 Filler for second fire compartment A3 Filler B for third fire compartment B Body B1 Insertion hole (floor hole)
B2 insertion hole (wall hole)
C Long insertion body D Filler support bracket S Gap 1 Non-combustible block 2 Thermally expandable refractory sheet 3 Restraint means (bag)
4 Filling material for fire protection compartment

Claims (8)

A filler for a fireproof compartment filled in a gap between the inner surface of the insertion hole formed in the housing and the outer surface of the long insertion body inserted through the insertion hole,
A felt-like heat-expandable fire-resistant material sheet provided with a heat-expandable fire-resistant material is provided on at least both surfaces of a cotton lump-like incombustible block made of rock wool or glass wool. A filler for a fire prevention compartment provided with restraining means for restraining it in a united state.   The filler for fireproof compartments according to claim 1, wherein the thermally expandable refractory material sheet is provided on a side surface of the incombustible block, leaving an end face on the opening side of the insertion hole.   The filling material for a fire prevention compartment according to claim 1 or 2, wherein a length in the filling direction of the non-combustible block is the same as or substantially the same as a penetration length of the insertion hole.   The filler for a fire prevention compartment according to any one of claims 1 to 3, wherein the thermally expandable fireproof sheet is configured by mixing a granular thermal expansion material into rock wool.   The filler for fire prevention compartments according to any one of claims 1 to 4, wherein the restraining means is made of a combustible material.   6. The filler for fireproof compartments according to any one of claims 1 to 5, wherein the restraining means is constituted by a bag body capable of packaging a nonflammable block and a thermally expandable refractory material sheet.   A heat-expandable fireproof material comprising a felt-like incombustible block made of rock wool or glass wool, and a heat-expandable fireproof material disposed on at least a side surface facing the long insertion member side and a side surface on the opposite side when the block is filled A filling method for a fireproof compartment, in which a filler for a fireproof compartment, which is constrained in a united state by a restraining means, is filled with the thermally expandable refractory sheet side facing a long insertion body. Claims: After filling the gap formed between the inner surface of the insertion hole and the long insertion body with the filler for the fireproof compartment, the remaining gap is filled with a thermally expandable refractory material sheet for flexibility. Item 8. A filling method for a filler for fire prevention compartments according to Item 7.

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