JPH09196282A - Fire resistant pipe structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the inside of an inner pipe portion from being affected by high temperatures produced by fires and the like by bringing the coefficient of thermal expansion of an outer-pipe-shaped cover part constructed of a heat resistant material and a cover material for the inner-pipe portion of the heat resistant material close to that of a pipe structure at an inner pipe portion. SOLUTION: An inner pipe portion 2 is formed by a pipe structure such as a spiral pipe made of a synthetic resin or metal, etc., the outer-pipe-shaped cover part 1 of the inner pipe portion 2 is made of a heat resistant material, and the inner pipe portion 2 made of the heat insulating material is covered with a cover material 8 to form a cross-sectional shape like that of a double pipe structure. The coefficient of thermal expansion of the outer-pipe-shaped cover part 1 formed by the cover material 8 of the inner pipe portion 2 is brought close to that of the pipe structure at the inner pipe portion 2. Thus high temperatures, to which the outer-pipe-shaped cover part 1 is exposed when the outside is exposed to heat produced by fires and the like, are surely blocked by the outer-pipe-shaped cover part 1, so that the structure can be used without being affected at the inside of the inner pipe portion 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refractory pipe structure, and more particularly, to a refractory pipe structure having an inner pipe portion capable of moving a feed fluid therein and an outer pipe portion for covering the inner pipe portion. There is a tubular coating part that adapts the properties of the inner pipe part to the properties of the feed fluid in the inner pipe, and the external tubular coating part seems to have changed the external environment due to high heat such as fire. The present invention relates to a refractory pipe structure capable of moving a feed fluid in an inner pipe without being affected by the external environment at any time.

[0002]

2. Description of the Related Art Conventionally, a double pipe or the like reliably transfers a fluid flowing inside the pipe in a desired state, and also against a change in the external environment which has become high temperature due to high heat caused by fire or the like. Techniques have been developed to ensure that there is no effect inside the tube. Therefore, refractory double-tube structures are used everywhere and are in widespread use. However, since the fire resistant double pipe structure is a double pipe structure by arranging the fire resistant pipe structure on the outside of the internal synthetic resin pipe, in the case of a straight pipe and a relatively long pipe Yes, but not only is it difficult to manufacture curved pipes and pipes with special shapes, but there are also many problems in use. Above all, the outside of the fire-resistant double pipe structure of the product when it is transported by truck, such as when transporting the product from the place of manufacture such as a factory to the place where the fire-resistant double pipe structure of the product is used, such as a construction site. Since the outer pipe structure part made of the refractory material of (1) is vulnerable to impact, it was often broken during transportation by a truck or the like. However, the problem still exists today, and there was no appropriate countermeasure, and the people concerned suffered. Further, in order to manufacture a fire-resistant double-pipe structure, the outer layer pipe and the inner-layer pipe constituting the fire-resistant double-pipe structure are separately manufactured, and the outer layer pipe thus manufactured separately and It is necessary to overlap the inner layer pipes, which requires a very large work space. Also, large-scale manufacturing equipment is required. In addition, there is a defect that the product cannot be manufactured at the site where the product is used, such as a construction site.

[0003]

The present invention makes it possible to manufacture a product without a particularly large site, and its manufacturing equipment is
The first problem is to be able to sufficiently manufacture even with existing manufacturing equipment, and to easily manufacture the product at a site of use such as a construction site. In addition, the inner pipe portion suitable for carrying various fluids can be made the most suitable inner pipe, and the outer side of the inner pipe is covered with a covering body to form an outer tubular covering portion with the covering body. A second object is that the outer tubular covering portion and the inner tubular portion can be easily made into a two-layer structure. In addition, the outer tubular covering part is made of a material that can withstand the high heat even when high heat is generated by a fire or the like and the external environment is changed, and the high heat received by the outer tubular covering part is blocked by the outer tubular covering part. The third problem is to protect the inner pipe portion located inside the inner pipe portion and to virtually eliminate the influence of the heat energy due to the high heat from the outside such as a fire on the fluid flowing inside the inner pipe portion. And

[0004]

DISCLOSURE OF THE INVENTION The present invention comprises a pipe structure comprising an inner pipe portion and an outer tubular covering portion for covering the inner pipe portion, the inner pipe portion being a synthetic resin pipe or a metal spiral pipe. The outer tubular coating part that covers the inner tube part consisting of the tube structure is formed by the covering material of the inner tube part that is both a heat resistant material and a heat insulating material. The coefficient of thermal expansion of the outer tubular covering portion formed by the coating material of the inner tube portion, which is also a material, is made to be close to the coefficient of thermal expansion of the tube structure of the inner tube portion, and at the same time the high heat generated by a fire on the outside When the environment is encountered, the high heat received by the outer tubular covering portion is blocked by the outer tubular covering portion so as not to affect the inner tubular portion, and the high heat generated by an external fire or the like even inside the inner tubular portion. So that it doesn't affect Was a refractory tube structure in which the inner tube portion, wherein the coated outside tubular coating portion.

[0005]

The present invention comprises an inner pipe portion and an outer tubular covering portion for covering the inner pipe portion, wherein the inner pipe portion is formed into a pipe structure such as a synthetic resin pipe or a metal spiral pipe, and the pipe structure is formed. Since the outer tubular coating portion that covers the inner tubular portion made of is formed of the coating material for the inner tubular portion that is both a heat-resistant material and a heat-insulating material, first, a pipe structure such as a synthetic resin pipe or a metal spiral pipe is formed. The inner pipe portion is formed by the body, and the outer tubular covering portion of the inner pipe portion is covered with the covering material for the inner pipe portion which is both a heat-resistant material and a heat insulating material, so that a double-pipe structure is effectively provided. It is formed in a cross-sectional shape like the one shown in the figure, and even if it is a high heat from the outside, the outer tubular covering part formed by the covering material of the inner tube part that is both a heat resistant material and a heat insulating material surely blocks heat. , It does not affect the internal condition of the inner pipe part It can be in. Further, the refractory pipe structure of the present invention has a coefficient of thermal expansion of an outer tubular covering portion formed of a coating material for the inner tubular portion which is a heat-resistant material as well as a heat insulating material. By making it close to the thermal expansion coefficient of the body, it receives high heat from the outside on the outside of the outer tubular covering portion that coats the inner pipe portion, or even if a high heat fluid or a low temperature fluid is passed inside the inner pipe portion, It is possible to prevent the inner tube portion and the outer tubular covering portion from having substantially the same coefficient of thermal expansion to prevent breakage. Further, the refractory tube structure of the present invention,
When the outside encounters high heat generated by a fire or the like, the high heat received by the outer tubular covering portion is surely blocked by the outer tubular covering portion so that it does not practically affect the inner tubular portion, It can be used without being affected by the high heat generated by an external fire because it can be lost to the fluid passing inside.

[0006]

Embodiment 1 The present invention comprises an inner pipe portion and an outer tubular covering portion for covering the inner pipe portion, wherein the inner pipe portion is made into a pipe structure such as a synthetic resin pipe or a metal spiral pipe, and the pipe is formed. The outer tubular covering portion that covers the inner tubular portion made of the structure is formed by the covering material for the inner tubular portion that is both a heat resistant material and a heat insulating material, and is a heat resistant material and a heat insulating material. When the coefficient of thermal expansion of the outer tubular covering portion formed by the covering material of the inner tube portion is made close to the coefficient of thermal expansion of the tube structure of the inner tube portion, and when the outside encounters a high heat environment caused by a fire, etc. The high heat received by the outer tubular covering portion is blocked by the outer tubular covering portion so as not to affect the inner tubular portion, and the influence of the high heat caused by an external fire does not reach the inside of the inner tubular portion. Outer tubular coating It is a fire-resistant pipe structure that covers the inner pipe part with heat, and when the external environment changes due to high heat caused by fire etc., the high heat received by the outer tubular cover part is blocked by the outer tubular cover part. A fire-resistant pipe structure in which an outer tubular covering portion is formed of a construction material containing silicon, which is a heat-insulating material as well as a heat-resistant material.

[0007]

[Embodiment 2] The present invention comprises an inner pipe portion and an outer tubular covering portion for covering the inner pipe portion, wherein the inner pipe portion is formed into a pipe structure such as a synthetic resin pipe or a metal spiral pipe, and the pipe is formed. The outer tubular covering portion that covers the inner tubular portion made of the structure is formed by the covering material for the inner tubular portion that is both a heat resistant material and a heat insulating material, and is a heat resistant material and a heat insulating material. When the coefficient of thermal expansion of the outer tubular covering portion formed by the covering material of the inner tube portion is made close to the coefficient of thermal expansion of the tube structure of the inner tube portion, and when the outside encounters a high heat environment caused by a fire, etc. The high heat received by the outer tubular covering portion is blocked by the outer tubular covering portion so as not to affect the inner tubular portion, and the influence of the high heat caused by an external fire does not reach the inside of the inner tubular portion. Outer tubular coating It is a fire-resistant pipe structure that covers the inner tube portion with a heat-insulating material as it is a heat resistant material to block the high heat received by the outer tubular coating portion due to high heat due to fire etc. Forming an outer tubular covering part that is also a flexible material, and forming a gap between the inner surface side of the outer tubular covering part and the outer surface side of the inner tube part made of a tubular structure such as a synthetic resin pipe or a metal spiral pipe. A refractory pipe structure in which a gap is formed by members and a heat insulating layer is formed by the gap portion so that a change in the external environment caused by high heat such as a fire does not affect the inside of the inner pipe portion. .

[0008]

Embodiment 3 The present invention comprises an inner pipe portion and an outer tubular covering portion for covering the inner pipe portion, wherein the inner pipe portion is made into a pipe structure such as a synthetic resin pipe or a metal spiral pipe, and the pipe is formed. The outer tubular covering portion that covers the inner tubular portion made of the structure is formed by the covering material for the inner tubular portion that is both a heat resistant material and a heat insulating material, and is a heat resistant material and a heat insulating material. When the coefficient of thermal expansion of the outer tubular covering portion formed by the covering material of the inner tube portion is made close to the coefficient of thermal expansion of the tube structure of the inner tube portion, and when the outside encounters a high heat environment caused by a fire, etc. The high heat received by the outer tubular covering portion is blocked by the outer tubular covering portion so as not to affect the inner tubular portion, and the influence of the high heat caused by an external fire does not reach the inside of the inner tubular portion. Outer tubular coating It is a fire-resistant pipe structure in which the inner pipe portion is covered with a part, and the inner pipe portion made of a metal spiral pipe and the outer periphery of the inner pipe portion is a band-shaped heat resistant material and a heat insulating material. And the outer tubular covering portion, and the outer circumference of the inner tubular portion is spirally wound in multiple layers by the outer tubular covering member that is a band-shaped heat-resistant material and also a heat-insulating material. It is a refractory tube structure that is spirally wound in multiple directions to form an outer tubular covering portion.

[0009]

[Fourth Embodiment] The present invention comprises an inner pipe portion and an outer tubular covering portion for covering the inner pipe portion, wherein the inner pipe portion is formed into a pipe structure such as a synthetic resin pipe or a metal spiral pipe, and the pipe is formed. The outer tubular covering portion that covers the inner tubular portion made of the structure is formed by the covering material for the inner tubular portion that is both a heat resistant material and a heat insulating material, and is a heat resistant material and a heat insulating material. When the coefficient of thermal expansion of the outer tubular covering portion formed by the covering material of the inner tube portion is made close to the coefficient of thermal expansion of the tube structure of the inner tube portion, and when the outside encounters a high heat environment caused by a fire, etc. The high heat received by the outer tubular covering portion is blocked by the outer tubular covering portion so as not to affect the inner tubular portion, and the influence of the high heat caused by an external fire does not reach the inside of the inner tubular portion. Outer tubular coating It is a fire-resistant pipe structure that covers the inner pipe part with heat, and when the external environment changes due to high heat caused by fire etc., the high heat received by the outer tubular cover part is blocked by the outer tubular cover part. Forming an outer tubular covering part that is both a heat-insulating material and a heat-insulating material, and the inner surface side of the outer tubular covering part and the outer surface side of the inner tube part made of a pipe structure such as a synthetic resin pipe or a metal spiral pipe. A refractory pipe structure that forms a space that allows mutual movement between the inner pipe part and the inner pipe part so that a change in the external environment caused by a high heat such as a fire does not directly affect the inner pipe part. Is.

[0010]

The present invention comprises an inner pipe portion and an outer tubular covering portion for covering the inner pipe portion, and the inner pipe portion is formed into a pipe structure such as a synthetic resin pipe or a metal spiral pipe, and the pipe structure is formed. An inner pipe which is a heat-resistant material and a heat-insulating material, in which the outer tubular coating part that covers the inner tube part is made of a coating material for the inner tube part that is both a heat-resistant material and a heat-insulating material. The coefficient of thermal expansion of the outer tubular covering portion formed by the covering material of the portion is made to be close to the coefficient of thermal expansion of the pipe structure of the inner tube portion, and when the outside encounters a high-heat environment caused by a fire, etc. The high heat received by the tubular sheath is blocked by the outer tubular sheath so that it does not affect the inner pipe, so that the high heat generated by an external fire does not reach the inside of the inner pipe. Outer tubular sheath Since it is a refractory pipe structure characterized by coating the inner pipe portion, it is a double structure of an inner pipe portion and an outer tubular coating portion covering the inner pipe portion, and the inner pipe portion is synthesized. A pipe structure such as a resin pipe or a metal spiral pipe is formed, and the outer tubular covering portion that covers the inner pipe portion made of the pipe structure is made of a heat-resistant material and a heat insulating material. Since it is formed, it has an effect that the influence of high heat generated by a fire or the like does not reach the inside of the inner pipe portion although it has a relatively simple structure. Then, the manufacturing method of the refractory pipe structure of the present invention, first, the inner pipe portion is formed by a pipe structure such as a synthetic resin pipe or a metal spiral pipe,
The outer tubular coating that covers the inner tubular portion is covered with a coating material for the inner tubular portion that is both a heat-resistant material and a heat-insulating material, and is formed into a cross-sectional shape like a double-pipe structure in effect. Then, even if there is a high heat from the outside, the outer tubular covering portion formed by the covering material of the inner tube portion that is both a heat resistant material and a heat insulating material surely blocks heat so that heat cannot be transferred. The internal state of the tube section is, in effect,
There is an effect that can be prevented. Further, the refractory pipe structure of the present invention has a coefficient of thermal expansion of an outer tubular covering portion formed of a coating material for the inner tubular portion which is a heat-resistant material as well as a heat insulating material. By making it close to the thermal expansion coefficient of the body, it receives high heat from the outside on the outside of the outer tubular covering portion that coats the inner pipe portion, or even if a high heat fluid or a low temperature fluid is passed inside the inner pipe portion,
There is an effect that the thermal expansion coefficient of the inner tubular portion and the outer tubular coating portion can be made substantially the same to prevent breakage. Further, the refractory pipe structure of the present invention, the high heat received by the outer tubular covering portion when the outside encounters high heat generated by a fire or the like, reliably blocks the outer tubular covering portion, and the inner pipe portion has There is an effect that it can be used without being affected by the high heat generated by an external fire or the like, because it can be practically prevented from affecting and the fluid passing through the inside of the inner tube portion can be lost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a fire resistant tube structure according to the present invention.

2 is a cross-sectional view of a refractory pipe structure according to the present invention, which is different from FIG.

FIG. 3 is a sectional view of a refractory tube structure according to the present invention, which is different from FIGS. 1 and 2.

[Explanation of symbols]

1 Outer tubular coating portion 2 Synthetic resin inner tubular portion 3 Cushioning outer tubular coating portion 4 Spiral tube inner tubular portion with metal plate 5 Outer tubular coating portion wound with band-shaped member 6 Metal inner tubular portion 7 Outer tubular coating portion And the gap between the inner pipe portion 8 The coating portion on the inner surface of the inner pipe portion 9 The corrosion resistant coating portion on the inner surface of the inner pipe portion 10 The gap forming member

Claims (16)

[Claims] 1. A pipe structure comprising an inner pipe part and an outer tubular covering part for covering the inner pipe part, wherein the inner pipe part is formed into a pipe structure such as a synthetic resin pipe or a metal spiral pipe, and the pipe structure is formed. The outer tubular covering portion that covers the inner pipe portion is formed by the covering material for the inner pipe portion that is both a heat resistant material and a heat insulating material, and the inner pipe portion that is both a heat resistant material and a heat insulating material The outer tubular coating formed by the coating material is made to have a coefficient of thermal expansion close to that of the tube structure of the inner tube portion, and the outer tubular coating is exposed to a high heat environment caused by a fire or the like on the outside. The high heat received by the part is blocked by the outer tubular covering part so that it does not affect the inner pipe part so that the high heat generated by an external fire does not reach the inside of the inner pipe part. Inner tube with tubular sheath Refractory tube structure was characterized by coating the minute. 2. A silicon which is a heat-resistant material as well as a heat-insulating material so that the high heat received by the outer tubular covering portion is blocked by the outer tubular covering portion when a high heat is generated due to a fire or the like and the external environment is changed. The refractory pipe structure according to claim 1, wherein the outer tubular covering portion is formed of a construction material containing the. 3. An outer tubular coating which is a heat-resistant material and a heat insulating material so that the high heat received by the outer tubular coating portion is blocked by the outer tubular coating portion when the external environment changes due to high heat generated by a fire or the like. Forming a part, and forming a space capable of allowing mutual movement between the inner surface side of the outer tubular covering part and the outer surface side of the inner tube part made of a tube structure such as a synthetic resin tube or a metal spiral tube. The refractory pipe structure according to claim 1, wherein a change in the external environment caused by a high heat such as a fire does not directly affect the inside of the inner pipe portion. 4. A silicon which is a heat-resistant material as well as a heat-insulating material so that the high heat received by the outer tubular covering portion is blocked by the outer tubular covering portion when high temperature is generated due to a fire or the like and the external environment is changed. The outer tubular covering portion is formed of a construction material containing a space between the inner surface side of the outer tubular covering portion and the outer surface side of the inner tubular portion made of a tubular structure such as a synthetic resin pipe or a metal spiral pipe. The fire resistance according to claim 1, wherein the outer tubular coating portion and the inner tubular portion are allowed to move to each other when high heat is generated by a fire or the like and the external environment is changed. Tube structure. 5. A silicon which is a heat-resistant material as well as a heat-insulating material so that the high heat received by the outer tubular covering portion is blocked by the outer tubular covering portion when a high heat is generated due to a fire or the like and the external environment is changed. The outer tubular covering portion is formed by a construction material containing the outer tubular covering portion, and an outer portion is formed between the inner surface side of the outer tubular covering portion and the outer surface side of the inner tubular portion made of a tubular structure such as a synthetic resin pipe or a metal spiral pipe. The change in the external environment caused by high heat such as a fire through a suitable material different from the tubular covering portion and the inner pipe portion does not directly affect the inside of the inner pipe portion. The refractory tube structure according to 1. 6. A silicon which is a heat-resistant material as well as a heat-insulating material because the outer tubular covering portion blocks the high heat received by the outer tubular covering portion when high heat is generated due to a fire or the like and the external environment changes. The outer tubular covering portion is formed by a construction material containing the above, and is deformed between the inner surface side of the outer tubular covering portion and the outer surface side of the inner tubular portion made of a tubular structure such as a synthetic resin pipe or a metal spiral pipe. The refractory pipe structure according to claim 1, wherein changes in the external environment caused by high heat such as a fire through a possible material do not directly affect the inside of the inner pipe portion. 7. An inner pipe portion formed of a pipe structure such as a metal spiral pipe, and an outer tubular covering portion that is a belt-shaped heat-resistant material and also an insulating material on the outer periphery of the inner pipe portion, 2. The outer tubular covering portion is formed by spirally winding the outer circumference of the inner tubular portion in multiple layers by an outer tubular covering member which is a band-shaped heat-resistant material and is also a heat insulating material. Fire resistant tube structure. 8. An inner tube portion made of a tubular structure such as a metallic spiral tube and an outer tubular portion covering the outer portion of the inner tube portion, which is a band-shaped heat-resistant material and is also a heat-insulating material. The outer circumference of the inner tube part is spirally wound multiple times by an outer tubular covering member that is a heat-resistant material as well as a heat insulating material in a strip shape, and the outer tubular covering is spirally wound in multiple layers in the opposite direction. The refractory pipe structure according to claim 1, wherein the refractory pipe structure is a part. 9. An inner tube portion made of a tubular structure such as a metal spiral tube and an outer tubular covering portion which is a band-shaped heat-resistant material and is also a heat-insulating material on the outer circumference of the inner tube portion. The inner surface of the inner pipe part made of a tubular structure such as a spiral pipe is coated with a corrosion resistant coating so that corrosive gas can be fed, and the outer periphery of the inner pipe part is a band-shaped heat resistant material and has a heat insulating property. The fire-resistant pipe structure according to claim 1, wherein the outer tubular covering member, which is also a material, is wound in multiple layers in a spiral shape to form an outer tubular covering portion. 10. An inner tube portion made of a tubular structure such as a metal spiral tube, and an outer tubular covering portion which is a belt-shaped heat-resistant material and an outer heat-insulating material on the outer circumference of the inner tube portion. The inner surface of the inner pipe portion made of a pipe structure such as a spiral pipe is coated with a corrosion-resistant coating material so that corrosive gas can be fed, and the outer periphery of the inner pipe portion is covered with the outer periphery of the strip-shaped inner pipe portion. Characterized by the outer tubular covering member, which is a band-shaped heat-resistant material as well as a heat-insulating material, wound in multiple spirals and spirally wound in the opposite direction multiple times. The fire resistant tube structure according to claim 1. 11. A corrosive gas comprising an inner pipe portion and an outer tubular coating portion for covering the inner pipe portion, wherein the inner surface of the inner pipe portion made of a pipe structure such as a synthetic resin pipe is covered with a corrosion resistant coating material. In order to be able to feed, the outer circumference of the inner tube portion is formed into an outer tubular covering portion by spirally winding a plurality of layers by an outer tubular covering member that is a band-shaped heat-resistant material and also a heat-insulating material. The refractory pipe structure according to claim 1. 12. A corrosive gas comprising an inner pipe portion and an outer tubular coating portion for covering the inner pipe portion, wherein the inner surface of the inner pipe portion made of a pipe structure such as a synthetic resin pipe is covered with a corrosion resistant coating material. So as to be able to be fed, and the outer circumference of the inner tube portion is spirally wound in multiple layers by an outer tubular covering member which is a band-shaped heat-resistant material and also a heat-insulating material,
The refractory pipe structure according to claim 1, wherein the outer tubular covering portion is formed by spirally winding a plurality of layers in opposite directions. 13. An inner pipe part and an outer tubular covering part for covering the inner pipe part, which can withstand a corrosive gas fed into the inner pipe part made of a pipe structure such as a synthetic resin pipe. The refractory pipe structure according to claim 1, wherein a material of the pipe structure is selected to be an inner pipe portion, and the inner pipe portion is used to enable long-term use of the inner pipe portion. 14. A material for a pipe structure, which comprises an inner pipe part and an outer tubular covering part for covering the inner pipe part, and which can withstand a corrosive gas to be fed in an inner pipe made of a synthetic resin pipe or the like. Is selected as an inner pipe portion, the inner pipe portion is used, the inner pipe portion can be used for a long period of time, and the outer tubular covering portion is formed by a heat insulating material and is retained inside the inner pipe portion. The refractory pipe structure according to claim 1, wherein the heat that is generated does not escape to the outside. 15. Thermal energy or thermal exergy of a feed fluid in an inner pipe, which is composed of an inner pipe portion and an outer tubular covering portion for covering the inner pipe portion and is made of a pipe structure such as a synthetic resin pipe, is provided to the outside. In order to prevent escape, it uses an inner tube part with high heat insulation properties, and the outer tubular covering part has heat resistance and heat insulation properties, and is formed by a heat insulating material, heat resistant material and heat insulating material with high heat retention. The refractory pipe structure according to claim 1, wherein heat inside the inner pipe portion is prevented from escaping to the outside. 16. An inner pipe portion and an outer tubular covering portion for covering the inner pipe portion, wherein the inner pipe portion is formed into a pipe structure such as a synthetic resin pipe or a metal spiral pipe, and the pipe structure is formed. The outer tubular covering portion that covers the inner tubular portion is formed of a covering material for the inner tubular portion that is both a heat resistant material and a heat insulating material, and the covering material for the inner tubular portion is formed of a material having cushioning properties. The refractory pipe structure according to claim 1, wherein impacts from the outside can be avoided.