KR20200072868A - Pipe of sprinkler - Google Patents

Abstract

The present invention relates to a sprinkler pipe. According to one embodiment of the present invention, the sprinkler pipe includes: a pipe body having a predetermined thickness, and having a hollow hole formed in a longitudinal direction therein; a plurality of heating wires placed in the longitudinal direction of the pipe body, and placed on a position where the thickness of the pipe body is formed; and at least one communication line placed in the longitudinal direction of the pipe body, and placed on a position where the thickness of the pipe body is formed. A material for forming the pipe body is carbon fiber reinforced plastic (CFRP), and the plurality of heating lines and the communication line can be exposed at the end of the pipe body. According to the present invention, while the sprinkler pipe is manufactured with carbon fiber reinforced plastic, the heating lines are installed in the sprinkler pipe to prevent freezing and bursting, thus preventing the pipe from being frozen and bursting even when the pipe is filled with water.

Description

Sprinkler piping{PIPE OF SPRINKLER}

The present invention relates to a sprinkler piping, and more particularly, to prevent the pipe from freezing, and to a sprinkler piping capable of communicating with a position where the sprinkler head is installed.

A sprinkler is a fire extinguishing facility that can extinguish a fire early in the event of a fire, and can be installed on a ceiling or wall of a building according to certain standards. When the sprinkler detects a fire at a position where the head where the water is sprayed is arranged, the sprinkler may operate to start the pump so that water is sprayed from the head and sound an alarm.

At this time, pipes are installed to supply water to the head of the sprinkler, and these pipes are disposed wrapped with a heat insulating material to prevent freezing in winter. However, such a heat insulating material may not cover the entire pipe due to the structure of the ceiling or wall of the building. In this way, the water in the piping can freeze at a position that is not protected by a heat insulating material, and there is a risk that the piping freezes.

In particular, since the pipe connected to the head of the sprinkler is exposed to the outside, there is a case that the insulation may not be wrapped in the corresponding position, and the corresponding part may be particularly vulnerable to freezing.

In order to prevent this, studies have been conducted to prevent sprinkler piping from freezing in various ways, and Korean Patent Registration No. 10-1804217 (hereinafter referred to as the prior literature) is one of them. Prior art discloses a technique of operating a pump to circulate water filled in the pipe so that when the pipe is frozen, the pipe is not frozen.

However, as in the prior art, in order to circulate water in the piping, when installing a sprinkler, there is a problem in that the piping must be installed so that the piping can be circulated at a certain position even though the piping can be installed at the shortest distance.

In addition, even if the piping is installed so that water can circulate in the piping, some sections, such as the section where the head of the sprinkler is connected, may not be circulated, so there is a problem that the risk of freezing in that part cannot be completely eliminated have.

On the other hand, when a fire is detected at a position where the head of the sprinkler is disposed, the fire detection signal needs to reach the pump in order to receive the corresponding signal and start the pump to operate the sprinkler. For this, there is a problem in that a sensor and a controller installed at the head position of the sprinkler must be electrically connected using a separate communication line.

Republic of Korea Registered Patent No. 10-1804217 (Nov. 28, 2017)

The problem to be solved by the present invention is to provide a sprinkler piping that can prevent the piping of the sprinkler from freezing.

In addition, the problem to be solved by the present invention is to provide a sprinkler piping that can be communicated through the sprinkler piping.

Sprinkler piping according to an embodiment of the present invention, has a predetermined thickness, a pipe body having a hollow formed in the longitudinal direction therein; A plurality of heating wires arranged in the longitudinal direction of the pipe body and disposed at positions forming the thickness of the pipe body; And is disposed in the longitudinal direction of the pipe body, and includes at least one communication line disposed in a position to form the thickness of the pipe body, the material constituting the pipe body, carbon fiber reinforced plastics (CFRP, Carbon Fiber Reinforced Plastic) And, the plurality of heating wires and the one or more communication wires may be exposed at the ends of the pipe body.

The plurality of heating wires are arranged to surround a part of the pipe body inside the pipe body, and the plurality of heating wires may be electrically connected to each other.

The one or more communication lines may be disposed outside the plurality of heating lines.

It is disposed in the hollow of the pipe body, and further includes an inner pipe disposed to be in close contact with the hollow inner peripheral surface of the pipe body, and the inner pipe may be formed of a stainless steel material.

A relay disposed on an outer circumferential surface of the piping body and electrically connected to a portion of the plurality of heating wires and a communication line interface electrically connected to the one or more communication wires may further include a relay.

It may be formed to cover a part of the end of the pipe body, and may further include a connection pipe having a connection inner pipe connected to the hollow of the pipe body therein.

The connecting pipe, the end of the connecting pipe and the end of the connecting inner pipe are formed to be stepped, and the end portion of the connecting inner pipe is disposed on the pipe body and is partially or entirely exposed to a plurality of heating wires exposed at the ends of the pipe body. A heating wire terminal for electrical connection and a communication line terminal for electrical connection with at least one communication line disposed at the end of the pipe body may be formed.

Each of the hot wire terminal and the communication wire terminal may be formed to form a closed curve along the end of the connection inner tube.

The hot wire terminal and the communication line terminal are respectively formed at both ends of the connection inner tube, and the hot wire terminal and the communication line terminal formed at both ends of the connection inner tube may be electrically connected to each other.

It is disposed on the outer circumferential surface of the connector, and may further include a relay including a hot wire interface electrically connected to the hot wire terminal and a communication wire interface electrically connected to the communication wire terminal.

The pipe body is formed at an end of the pipe body, a body engaging projection protruding outwardly of the pipe body is formed, and the connection pipe has a locking groove in a shape corresponding to the body locking jaw so that the body locking jaw is inserted. It can be formed.

An elastic portion may be formed on an inner surface disposed on the outer side of the inner side of the locking groove so that the restoring force acts on the inner side of the connecting tube.

According to the present invention, while manufacturing the sprinkler piping using carbon fiber reinforced plastic, by installing a heating wire for preventing freezing inside, there is an effect that can prevent the piping even if the piping is filled with water.

In addition, by installing a communication line for communication in the piping, there is an effect that communication can be made through the piping without installing a separate communication line for communication between the controller controlling the detector and the pump at the position of the sprinkler head.

1 is a view showing a sprinkler piping according to the first embodiment of the present invention.
2 is a view for explaining a process of manufacturing a sprinkler pipe according to the first embodiment of the present invention.
3 is a view showing a sprinkler pipe according to a second embodiment of the present invention.
4 is a view showing a pipe for a sprinkler according to a third embodiment of the present invention.
5 is a view showing a sprinkler pipe and a connection pipe according to a fourth embodiment of the present invention.
6 is a view for explaining the connection of the sprinkler pipe and the connecting pipe according to the fourth embodiment of the present invention.
7 is a view showing a sprinkler pipe and a connection pipe according to a fifth embodiment of the present invention.
8 is a view showing a pipe and a connection pipe for a sprinkler according to a sixth embodiment of the present invention.
9 is a view for explaining the connection of the sprinkler pipe and the connecting pipe according to the sixth embodiment of the present invention.

With reference to the accompanying drawings, a preferred embodiment of the present invention will be described in more detail.

1 is a view showing a sprinkler piping according to the first embodiment of the present invention.

Referring to FIG. 1, the sprinkler piping 100 according to the first embodiment of the present invention includes a piping body 110, a heating wire 120, and a communication line 130. In the drawing illustrated in FIG. 1, the heating wire 120 and the communication wire 130 are partially exposed in the middle portion of the pipe body 110, and the heating wire 120 and the communication wire 130 are located inside the pipe body 110. It is shown to show the arrangement.

The pipe body 110 is a cylindrical tube having a hollow formed therein in the longitudinal direction, as shown. Accordingly, water for supplying to the head (not shown) of the sprinkler may pass along the hollow inside. The piping body 110 may be formed such that the thickness of the pipe has a predetermined thickness, as shown. In addition, a heating wire 120 and a communication line 130 may be disposed inside the tube having a predetermined thickness.

In this embodiment, the pipe body 110, may be made of carbon fiber reinforced plastic (CFRP, Carbon Fiber Reinforced Plastic). Carbon fiber reinforced plastics are prepared by laminating an impregnated epoxy resin or a fluorine resin with a substrate made of graphite fibers, and heating and solidifying under pressure at a predetermined pressure. The carbon fiber reinforced plastic may be light and have strong rigidity.

When manufacturing the carbon fiber reinforced plastic as the piping body 110 is made of carbon fiber reinforced plastic, the heating body 120 and the communication line 130 are inserted in the process of laminating graphite fibers containing resin to form the piping body ( The heating wire 120 and the communication wire 130 may be disposed inside the 110.

As shown, the heating wire 120 is disposed inside the pipe body 110, and a plurality of pipes 110 may be disposed along the length direction of the pipe body 110. In the present embodiment, the heating wires 120 may be arranged side by side at predetermined intervals, and may dissipate heat by an externally supplied power source. In this embodiment, the heating wire 120 can be used a conductor such as a wire that withstands high temperatures and has a high resistivity, and an alloy of iron and chromium or an alloy of nickel and chromium may be used. Alternatively, a tungsten or platinum resistance wire may be used. In addition, a molded and sintered resistance heating element based on molybdenum silicide and alternating carbide may be used.

In this embodiment, a plurality of hot wires 120 are disposed inside the piping body 110, wherein the plurality of hot wires 120 may be electrically connected to each other. That is, when power is connected to any two of the plurality of heating wires 120, power may be supplied to all of the plurality of heating wires 120 disposed inside the pipe body 110, and accordingly, the plurality of heating wires 120 All can dissipate heat.

The communication line 130 is provided to transmit an electric signal, and may be disposed inside the pipe body 110 like the heating line 120. The communication line 130 may be disposed inside the pipe body 110 in a state where a copper wire for communication, etc. is covered with an insulating material. In this embodiment, two communication lines 130 may be disposed inside the pipe body 110, and more communication lines 130 may be disposed inside the pipe body 110 as necessary.

The heating wire 120 and the communication wire 130 may have different positions that are disposed inside the pipe body 110. In the present embodiment, the heating wire 120 may be disposed inside the pipe body 110, and the communication line 130 may be disposed outside the pipe body 110. That is, the heating wire 120 is disposed adjacent to the inner hollow inside the pipe body 110, and the communication line 130 can be disposed adjacent to the outer circumferential surface of the pipe body 110 inside the pipe body 110. .

The heating wire 120 may be disposed adjacent to the hollow since power is supplied to generate heat to heat water flowing through the hollow of the piping body 110. In addition, the communication line 130 needs to be disposed at a position spaced apart from the heating line 120 by a predetermined distance so that heat generated from the heating line 120 is not directly transmitted. Therefore, the communication line 130 may be disposed in a position adjacent to the outer circumferential surface of the pipe body 110 within the pipe body 110.

2 is a view for explaining a process of manufacturing a sprinkler pipe according to the first embodiment of the present invention.

Referring to FIG. 2, a process of manufacturing the sprinkler piping 100 according to this embodiment will be described. As described above, the sprinkler piping 100 includes a piping body 110, a heating wire 120, and a communication line 130, and the piping body 110 is made of carbon fiber reinforced plastic. Carbon fiber reinforced plastic is manufactured by stacking graphite fibers impregnated with epoxy resin or fluorine resin, etc., so that the heating wire 120 and communication are arranged in the longitudinal direction of the piping body 110 in the middle of laminating these graphite fibers, (110) can be prepared.

That is, the graphite fibers impregnated with resin are laminated to a predetermined thickness, and two or more communication lines 130 are disposed on the stacked graphite fibers in the longitudinal direction of the pipe body 110. Again, the graphite fibers are stacked to a predetermined thickness, and a plurality of heating wires 120 are disposed at predetermined intervals on the stacked graphite fibers. At this time, the plurality of heating wires 120 may be arranged side by side in the longitudinal direction of the pipe body 110, and may be arranged at the same interval. In addition, graphite fibers may be stacked on a plurality of heating wires 120 to a predetermined thickness. In such a state that the communication line 130 and the heating wire 120 are disposed inside the graphite fiber impregnated with the resin, the cutting is performed to have a predetermined width, and the cut graphite fiber is jig (as shown in FIG. 2 ). 200).

As the graphite fiber rolled on the jig 200 is solidified by heating under a predetermined pressure, the piping 100 for the sprinkler can be manufactured. Here, the spacing between the heating wire 120 and the communication line 130 may be greater than the distance to the inner surface where the hollow of the heating wire 120 and the pipe body 110 is formed, and also, the communication wire 130 and the pipe body ( It may be greater than the distance to the outer peripheral surface of 110).

3 is a view showing a sprinkler pipe according to a second embodiment of the present invention.

Referring to FIG. 3, the sprinkler pipe 100 according to the second embodiment of the present invention includes a pipe body 110, a heating wire 120, a communication line 130, and an inner pipe 140. While describing this embodiment, the same description as in the first embodiment is omitted.

In this embodiment, the interior of the pipe body 110, as described in the first embodiment, a hollow is formed therein, through which the water supplied to the head (not shown) of the sprinkler can pass through. .

At this time, in this embodiment, the carbon fiber reinforced plastic used as the material of the piping body 110 has a low coefficient of friction with water compared to the conventional steel piping 100, but more piping to lower the coefficient of friction with water The inner tube 140 may be disposed in the inner hollow of the body 110. The inner pipe 140 may be disposed in close contact with the hollow inner wall of the pipe body 110, and may be a pipe having a hollow formed therein.

In the present embodiment, the inner tube 140 may be made of stainless steel, and the stainless steel material is not easily oxidized even if it is in contact with water for a long time, and also, the friction coefficient with water is low, so that the water is quickly moved through the inner tube 140. Can.

4 is a view showing a pipe for a sprinkler according to a third embodiment of the present invention.

Referring to FIG. 4, the sprinkler pipe 100 according to the third embodiment of the present invention includes a pipe body 110, a heating wire 120, a communication line 130, and a relay 150. While describing this embodiment, the same description as in the first embodiment is omitted.

In this embodiment, a relay 150 is installed in the pipe body 110. The relay 150 may be provided with two interfaces, and one of the two interfaces may be electrically connected to a plurality of heating wires 120 disposed inside the pipe body 110. In addition, the other of the two interfaces may be electrically connected to the communication line 130 disposed inside the pipe body 110.

In this way, the relay 150 is provided with two interfaces, a power supply unit can be electrically connected to supply power to the heating wire 120, and a controller capable of transmitting and receiving signals through the communication line 130 to the other ( May be electrically connected.

Therefore, the user can supply power to the heating wire 120 installed inside the pipe body 110 through the relay 150, and can transmit and receive signals through the communication line 130. In this embodiment, although the relay 150 is illustrated as having one on the outer circumferential surface of the pipe body 110, the relay 150 may be disposed one by one at predetermined intervals along the longitudinal direction of the pipe body 110. , Multiple dogs may be provided.

5 is a view showing a sprinkler pipe and a connection pipe for a sprinkler according to a fourth embodiment of the present invention, and FIG. 6 is a view for explaining a connection between a pipe and a connection pipe for a sprinkler according to a fourth embodiment of the present invention .

Referring to FIG. 5, the sprinkler pipe 100 according to the fourth embodiment of the present invention includes a pipe body 110, a heating wire 120, a communication line 130, and a connection pipe 160. While describing this embodiment, the same description as in the first embodiment is omitted.

In this embodiment, the connecting pipe 160 is provided to connect and fix the two sprinkler pipes 100 to each other. To this end, the connection pipe 160 may have a shape of a pipe with a hollow formed therein, and includes a connection inner pipe 162, a hot wire terminal 164, and a communication wire terminal 166. The connection inner pipe 162 is disposed inside the connection pipe 160 and may be integrally formed with the connection pipe 160. At this time, the connection inner tube 162 may be disposed inside the longitudinal direction from the end of the connection tube 160, as shown in the inside of the connection tube 160. That is, the end of the connection inner tube 162 may have a shape of a groove formed to form a step with the end of the connection tube 160. The inner hollow diameter of the connecting inner pipe 162 may be formed to a size smaller than the inner hollow diameter of the connecting pipe 160.

And the inner hollow diameter of the connecting inner pipe 162 may be the same as the inner hollow diameter of the piping body 110. Therefore, when the connection pipe 160 and the pipe body 110 are combined, the end of the pipe body 110 may be in contact with the end of the connection inner pipe 162. Here, although only the shape of one side of the connection pipe 160 is illustrated in the drawing, the shape of the other side of the connection pipe 160 may be the same shape as the shape of one side of the connection pipe 160.

An end of the connection inner tube 162, that is, a surface where a step is formed between the connection inner tube 162 and the connection tube 160, a hot wire terminal 164 and a communication line terminal 166 may be formed. The hot wire terminal 164 and the communication wire terminal 166 may be continuously formed along the shape of the end of the connecting inner tube 162, respectively, and the hot wire terminal 164 and the communication wire terminal 166 may be closed curves, respectively. It can be formed as. In this embodiment, the hot wire terminal 164 and the communication wire terminal 166 may be formed to have a circular shape, respectively.

In addition, as illustrated in FIG. 6, each of the hot wire terminal 164 and the communication wire terminal 166 may have a shape in which the ends protrude toward the ends of the connection pipe 160. Accordingly, when the pipe body 110 is coupled to the connection pipe 160, the hot wire terminal 164 and the communication line terminal 166 are electrically connected to the hot wire 120 and the communication line 130 disposed in the pipe body 110, respectively. Can be connected. In addition, if necessary, the hot wire terminal 164 and the communication wire terminal 166 may be formed to have elasticity, respectively.

In addition, the hot wire terminal 164 and the communication wire terminal 166 may be connected from one side of the connector 160 to the other side, and the shape of the other side may have a shape protruding in the same shape as the shape of one side.

In addition, in the present embodiment, the hot wire terminal 164 may be disposed inside the connector 160 than the communication wire terminal 166, and may be disposed in electrical isolation from each other.

And in this embodiment, the connection pipe 160 is installed with a hinge on the outer circumferential surface, a part of the connection pipe 160 to be cut based on the vertical surface (horizontal direction in the drawing) in the longitudinal direction based on the hinge installed on the outer circumferential surface Can be rotated. Therefore, when the connecting pipe 160 is coupled to the pipe body 110, the connecting pipe 160 may be opened (as a part of the connecting pipe 160 is rotated based on the hinge). In addition, a locking unit 170 may be disposed to close the open connection pipe 160 on the outer circumferential surface of the connection pipe 160 and lock it so that the closed condition is maintained.

In this embodiment, when the connection pipe 160 is closed by the locking portion 170, if the pipe body 110 is coupled to the connection pipe 160, the pipe body 110 by the locking portion 170 A may not deviate from the connector 160. That is, by the locking portion 170 is closed so that the connection pipe 160 is not opened, and as the connection pipe 160 is closed, the pipe body 110 coupled to the connection pipe 160 is connected to the connection pipe 160. It may not deviate.

7 is a view showing a sprinkler pipe and a connection pipe according to a fifth embodiment of the present invention.

Referring to FIG. 7, the sprinkler piping 100 according to the fifth embodiment of the present invention includes a piping body 110, a heating wire 120, a communication line 130, and a connecting pipe 160. While describing the present embodiment, the same description as in the previous first to fourth embodiments will be omitted.

In this embodiment, the connector 160 is configured with the same configuration as the connector 160 described in the fourth embodiment. However, the relay 150 may be provided in the connector 160 in this embodiment. The relay 150 is provided with two interfaces, and one of the two relays 150 may be electrically connected to the hot wire terminal 164 formed in the connector 160. In addition, the other of the two relays 150 may be electrically connected to the communication line terminal 166 formed in the connector 160.

As described in the third embodiment, an external power supply unit or a controller may be electrically connected to the relay 150.

8 is a view showing a sprinkler pipe and a connection pipe for a sprinkler according to a sixth embodiment of the present invention, and FIG. 9 is a view for explaining a connection of a pipe and connection pipe for a sprinkler according to a sixth embodiment of the present invention .

8 and 9, the sprinkler pipe 100 according to the sixth embodiment of the present invention includes a pipe body 110, a heating wire 120, a communication line 130, and a connecting pipe 160. . While describing this embodiment, the same description as in the first to fifth embodiments is omitted.

In this embodiment, the body engaging jaw 112 may be formed in the pipe body 110. In addition, the relay 150 may be disposed in the connection pipe 160, and the relay 150 may not be disposed in the pipe body 110.

First, the body locking jaw 112 formed in the pipe body 110 is formed at the end of the pipe body 110, it may be formed in a shape protruding outward than the outer peripheral surface of the pipe body 110. The body engaging jaw 112 may be manufactured in a state integrally formed with the piping body 110, but is not limited thereto, and may be separately formed in the piping body 110 after the piping body 110 is manufactured as required. It might be.

That is, after the piping body 110 is manufactured, it may be formed by rolling graphite fibers impregnated with an epoxy resin or a fluorine resin, etc., at the ends of the piping body 110 so as to have a predetermined width and thickness. And after the graphite fiber is rolled to the end of the pipe body 110, it can be solidified by heating under a predetermined pressure.

In this way, the body engaging jaw 112 may be further formed on the piping body 110 from the same material as the piping body 110, and may also be formed on the end of the piping body 110 from other materials as needed. . The body engaging jaw 112 may be coupled to a metal or synthetic resin or the like at the end of the piping body 110, and the body engaging jaw 112 may be fixed to the piping body 110 using bolts or adhesives.

Here, when the body engaging jaw 112 is coupled to the piping body 110 using a bolt or the like, the bolt is penetrated to a position where the communication line 130 is not disposed so that the body engaging jaw 112 is connected to the piping body 110. Can be bound to. As described above, since the communication line 130 is disposed in two or more in the pipe body 110, the communication line 130 is disposed in a specific position in the pipe body 110, the communication line 130 is placed in the position where the bolt penetrates It can be placed out of position. And even if a portion of the heating wire 120 disposed inside the pipe body 110 is broken by a bolt, as described above, since each heating wire 120 is electrically connected to each other, only some of the plurality of heating wires 120 are powered. When this is supplied, power may be supplied to the whole, so that a problem may not occur in the operation of the heating wire 120.

In this way, the body engaging jaw 112 is formed at the end of the pipe body 110, and the engaging groove 168 is formed in the connection pipe 160 to correspond to the body engaging jaw 112. The locking groove 168 is formed at a position adjacent to the connection inner pipe 162 and may be formed in a shape of a groove having a predetermined depth along the inner circumferential surface of the connection pipe 160.

Therefore, when the pipe body 110 and the connection pipe 160 are combined, the body of the pipe (110) formed in the pipe body 110 is inserted into the locking groove 168 formed in the connection pipe 160, the pipe body ( 110) and the connecting pipe 160 may be combined with each other.

When the pipe body 110 and the connection pipe 160 are combined in this way, the heating wire 120 and the communication line 130 exposed at the ends of the pipe body 110 are formed at the end of the connection inner pipe 162 of the connection pipe 160. The hot wire terminal 164 and the communication wire terminal 166 may be electrically connected.

In addition, an elastic portion ES may be disposed inside the locking groove 168 formed in the connection pipe 160, and the elastic portion ES is one of the inner surfaces of the locking groove 168, as shown in FIG. 9. It may be disposed on the inner surface and the inner surface disposed on the outside. In some cases, the elastic part ES may be formed only on an inner surface disposed outside of the inner surface of the locking groove 168. At this time, the inner surface disposed on the outside of the inner surface of the engaging groove 168 is an inner surface disposed in the end direction of the connecting pipe 160 in the engaging groove 168.

As described above, when the elastic body ES is disposed on the inner surface disposed on the outer side of the inner surface of the locking groove 168, when the pipe body 110 is coupled with the connection pipe 160, the elastic part ES By the body engaging jaw 112 may be applied to the restoring force in the inner direction of the connector 160. Accordingly, the heating wire 120 and the communication line 130 exposed at the ends of the pipe body 110 may be in close contact with the heating wire terminal 164 and the communication line terminal 166 of the connector 160. Therefore, the heating wire 120 and the communication line 130 of the piping body 110 may be made to be in better electrical contact with the heating wire terminal 164 and the communication wire terminal 166 formed in the connection pipe 160, respectively.

In addition, as the elastic portion ES is disposed on the inner surface of the locking groove 168, the elastic portion ES can apply pressure to the body locking jaw 112 from the outside inward, so that the body locking jaw 112 is When separately coupled to the pipe body 110, it can act as an external force to maintain the coupling of the body engaging jaw 112 and the pipe body 110.

While the piping 100 for the scrinkler is described in the present invention, various embodiments have been described, but each embodiment may be configured and implemented independently, and two or more of the various embodiments are combined as necessary. It can also be carried out.

As described above, the detailed description of the present invention has been made by the embodiments with reference to the accompanying drawings, but the above-described embodiments are merely described as preferred examples of the present invention, and the present invention is limited to the above-described embodiments only. It should not be understood, and the scope of the present invention should be understood as the claims and the equivalent concept described below.

100: piping
110: piping body
122: body locking jaw
120: heating wire
130: communication line
140: inner tube
150: relay
160: connector
162: internal connection
164: hot wire terminal
166: communication line terminal
168: jam groove
170: lock
200: jig
ES: Elastic part

Claims (12)

A pipe body having a predetermined thickness and having a hollow formed in the longitudinal direction therein;
A plurality of heating wires arranged in the longitudinal direction of the pipe body and disposed at positions forming the thickness of the pipe body; And
It is disposed in the longitudinal direction of the pipe body, and includes at least one communication line disposed at a position forming the thickness of the pipe body,
The material constituting the piping body is carbon fiber reinforced plastic (CFRP),
The plurality of heating wires and the one or more communication wires are sprinkler pipes exposed at the ends of the pipe body. The method according to claim 1,
The plurality of heating wires are arranged to surround a part of the pipe body inside the pipe body,
The plurality of heating wires are sprinkler piping electrically connected to each other. The method according to claim 2,
The one or more communication lines are pipes for sprinklers disposed outside the plurality of heating wires. The method according to claim 1,
It is disposed in the hollow of the pipe body, and further includes an inner pipe disposed to be in close contact with the hollow inner peripheral surface of the pipe body,
The inner pipe is a pipe for a sprinkler formed of stainless steel material. The method according to claim 1,
A sprinkler piping further disposed on an outer circumferential surface of the pipe body, and further comprising a relay including a hot wire interface electrically connected to some of the plurality of hot wires and a communication line interface electrically connected to the one or more communication wires. The method according to claim 1,
It is formed so as to cover a part of the end of the pipe body, the sprinkler pipe further comprises a connection pipe formed with a connection inner pipe connected to the hollow of the pipe body therein. The method according to claim 6,
In the connection pipe, the end of the connection pipe and the end of the connection inner pipe are formed to be stepped,
The end of the connection inner pipe is disposed on the piping body and is disposed on the piping body and a heating wire terminal for electrically connecting with some or all of the plurality of heating wires exposed at the end of the piping body and exposed at the end of the piping body Sprinkler piping with communication line terminals for electrical connection with one or more communication lines. The method according to claim 7,
The heating wire terminal and the communication wire terminal are respectively sprinkler piping formed to form a closed curve along the end of the connection inner tube. The method according to claim 7,
The hot wire terminal and the communication wire terminal are respectively formed at both ends of the connection inner tube,
The heating wire terminals and the communication wire terminals formed on both ends of the connection inner pipe are respectively connected to each other for sprinkler piping. The method according to claim 6,
A sprinkler piping further disposed on an outer circumferential surface of the connector, and further comprising a relay including a hot wire interface electrically connected to the hot wire terminal and a communication wire interface electrically connected to the communication wire terminal. The method according to claim 6,
The pipe body is formed at the end of the pipe body, a body engaging projection protruding to the outside of the pipe body is formed,
The connection pipe is a pipe for a sprinkler having a locking groove in a shape corresponding to the body locking jaw so that the body locking jaw is inserted. The method according to claim 11,
A sprinkler pipe having an elastic portion formed on an inner side of the inner side of the engaging groove so that the body engaging jaw has a restoring force in the inner direction of the connecting pipe.

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