KR200473359Y1

KR200473359Y1 - 4 Line Type Structure of Sensing Wire of Constant Temperature

Info

Publication number: KR200473359Y1
Application number: KR2020130004693U
Authority: KR
Inventors: 민성기
Original assignee: 민성기
Priority date: 2013-06-11
Filing date: 2013-06-11
Publication date: 2014-07-03

Abstract

The four-conductor structure used in the four-wire system is composed of a 70 ° C sensing wire, a 90 ° C sensing wire, and two common wires. The four wires are of a spring wire made of a hard wire alloy And the sensing part surrounding each of the outer surfaces of the conductors is made of a heat resistant resin insulator made of ethylene vinyl acetate polymer and the protective tape taped with the four conductor sensing part is made of a polyester material and is protected from moisture and dust And a jacket surrounding the outer surface of the protective tape is made of a polyvinyl chloride material.

Description

4-Line Type Structure of Sensing Wire of Constant Temperature

The present invention relates to a structure of a sensing wire having a constant temperature. Generally, a warm-temperate sensing wire is installed in a fire monitoring area so that the temperature is sensed at the time of a fire and an alarm is sounded or the receiver is operated to eject the digestive juice. The general warming-type sensing line as described above has a three-wire structure, and the three lines are composed of a 70 ° C sensing line, a 90 ° C sensing line, and a common line. When the temperature of the fire monitoring area rises to 70 ° C at the beginning of the fire, the fire is detected by the 70 ° C sensing line and the common line, and the alarm is issued by transmitting the receiver. When the temperature rises to 90 ° C, the receiver transmits a fire generation signal to the receiver by the 90 ° C sensing line and the common line, so that the receiver operates the fire extinguishing system and ejects the fire extinguishing liquid.

Conventional technology related to the design is disclosed in Korean Utility Model Registration No. 20-0204673 (published on Dec. 01, 2000). FIG. 1 is a block diagram of the conventional warm-up type sensing linear fire sensing apparatus. In FIG. 1, the sensing line 11 constituting the sensing unit 10 in the conventional warm-up sensing linear fire sensing apparatus is formed by using two steel wires made of refractory steel, such as a piano wire, The wire 11 is coated with a soluble insulating coating 12 made of a resin or the like and twisted to have a restoring elastic force. The twisted sensing line 11 is configured to be short-circuited by the restoring elastic force when the soluble insulating coating 12 coated on the surface melts in the event of a fire. The sensing line 11 wrapped with the insulation coating is wrapped with the protective tape 13 and wrapped with a flame retardant coating 14 made of synthetic resin or fiber. If the sensing line 11 is damaged due to fire or the like, it is possible to remove the damaged portion and replace the sensing line 11 with a new one so that the sensing line 11 can be re-spliced . In addition, since the sensing line 11 is used as a conductive resistor, its resistance value must be accurately measured in advance. Generally, in the case of a steel wire which can be easily purchased and used in the market, a resistance value of about 0.65? / M or 0.1? / M is used. In addition, (10) is highly durable against chemical substances, dust and moisture, and therefore can be used in dangerous areas such as explosion-proof areas. Further, the temperature of the detector is wide according to the ambient temperature, and installation, It is easy. Also, it can be installed to detect the distance of the fire occurrence area based on the difference in resistance value of the sensing line according to the distance.

The conventional temperature sensing type linear fire sensing device has a two-wire type sensing wire structure, which can detect fire, but it can not prevent malfunction of a receiver using the sensing wire structure. In order to solve the problem of the conventional temperature sensing type sensing wire as described above, the present invention is configured to form a four-wire type sensing wire having a constant temperature sensing type to detect a malfunction of a receiver while simultaneously sensing a fire, So as to be controlled.

The four-conductor structure of the present invention is composed of a four-conductor system of 70 ° C sensing line, a 90 ° C sensing line, and two common lines. The four- Wherein the sensing part surrounding each of the outer surfaces of the conductors is made of a heat resistant resin insulator made of ethylene vinyl acetate polymer and the protective tape taped with the four conductor sensing part is made of a polyester material The protection tape can be protected from moisture and dust, and the envelope surrounding the outer surface of the protection tape is made of polyvinyl chloride.

The above-mentioned high-temperature and temperature sensing wire 4-wire structure having 70 ° C sensing line, 90 ° C sensing line, common line 1 and common line 2, And transmits the fire signal to the receiver by using the 90 ° C sensing line and the common line 1 to transmit the output signal to the fire extinguishing system to operate the fire extinguishing system and eject the fire extinguishing liquid The control unit generates a fire only when a receiver output signal and a fire generation signal based on the 70 ° C sensing line and the common line 2 are received by combining the fire detection signal of the 70 ° C detection line and the fire detection signal of the common line 2 with the output signal of the receiver, It is possible to control the fire extinguishing liquid of the fire extinguishing system to be ejected.

FIG. 1 is a block diagram of a conventional temperature sensing type linear fire sensing apparatus,
Fig. 2 is a schematic view of the present invention,
FIG. 3 is a cross-sectional view of the present high-temperature-temperature sensing wire 4-wire structure,
FIG. 4 is a block diagram of a fire detection and fire extinguishing system that can prevent a receiver malfunction applying the present high-temperature sensing line 4-wire structure.

The present invention will now be described with reference to FIGS. 2 to 4. FIG.

Fig. 2 is a schematic view of a four-wire system of the present invention. 2, the conventional high-temperature sensing wire 4-wire type includes a 70 ° C sensing wire 105, a 90 ° C sensing wire 110, a common wire 1 conductor 120, and a common wire 2 conductor 130, And the four conductors 105, 110, 120, and 130 are twisted in an oblique shape, and the conductors of the conductor portion and the conductors of the conductor portion are made of a hard wire alloy material, The sensing unit 200 is made of a heat-resistant resin insulator made of ethylene vinyl acetate polymer. The protective tape 300 taped with the four-conductor sensing unit 200 is made of a polyester material and is protected from moisture and dust And the outer cover 400 surrounding the outer surface of the protective tape is made of a polyvinyl chloride material. The 70 ° C sensing conductors 105 and 90 ° C sensing conductors 110 are 0.8 mm ± 0.1 mm in diameter and the 70 ° C sensing conductors 105 are heated up to 70 ° C The sensing unit of the 70 ° C sensing conductor and the sensing unit of the common line 1 conductor 120 or the common line 2 conductor 130 is melted and constitutes an electric circuit when power is supplied to detect a fire, To control the receiver 600 to display a fire alarm. Also, when the temperature rises further due to the fire and the heating temperature reaches 90 ° C, the 90 ° C sensing conductor 110 melts and conducts to the common line 1 conductor 120 or the common line 2 conductor 120 And controls the receiver 600 to emit the digestive juice contained in the digestion facility 700. [0041] The melting point of the 70 ° C sensing wire 105 and the 90 ° C sensing wire 110 are different depending on the temperature as described above, so that the melting point can be controlled to be different according to the thickness of the sensing unit 200. Also, the sensing part 200 of the common line 1 conductor 120 and the common line 2 conductor 130 is made of a heat-resistant resin insulator material and the thickness of the coating is within 0.2 mm ± 0.1 mm. The protective tape 300 surrounding the sensing unit 200 is taped with a polyester tape having a thickness of 0.025 mm ± 0.01 mm to a thickness within a range of 1 mm ± 0.1 mm. Further, the envelope 400 surrounding the outside of the protective tape indicates that the polyvinyl chloride (PVC) material is configured to be 0.5 mm ± 0.5 mm or less in thickness.

Fig. 3 is a cross-sectional view of the structure of the present invention. 3, four conductors 105, 110, 120 and 130 having a diameter of 0.8 mm ± 0.1 mm are provided inside the four-wire type sensing wire 100, A sensing part 200 composed of a heat-resistant resin insulator with a thickness within a range of 0.2 mm ± 0.1 mm, and a polyester tape having a thickness of 0.025 mm ± 0.01 mm and having a thickness within a range of 1 mm ± 0.1 mm 300 and a cover 400 made of a polyvinyl chloride (PVC) material having a thickness of 0.5 mm ± 0.5 mm, which is configured to wrap around the protective tape. As shown in FIG. The four-wire type conductor is a twisted structure like a wire. When the sensing part 200 is heated due to fire due to fire, the 70 ° C sensing wire 105 or the 90 ° C sensing wire 110 is connected to the common line conductor 1 120 or the common line conductor 2 130 are brought into contact with each other and power is applied thereto.

FIG. 4 is a block diagram of a fire detection and fire extinguishing system that can prevent a receiver malfunction applying the present high-temperature sensing line 4-wire structure. 4, the fire sensing and fire extinguishing system capable of preventing a receiver malfunction applying the high-temperature and temperature sensing wire 4-wire structure according to the present invention includes a cable connection unit 800 to which a plurality of cables are connected, Type four-wire type sensing line 100 connected to the constant-temperature type four-wire type sensing line 100 and connected to the 70 ° C sensing line 105 or the 90 ° C sensing line 110 A control unit 500 for receiving a sensing signal for sensing the conduction state with the lines 120 and 130 and transmitting the sensing signal to the receiver and receiving an output signal from the receiver and transmitting the signal to the fire extinguishing system; A receiver 600 for receiving a detection signal and displaying a fire alarm or transmitting an output signal for ejecting a fire extinguishing liquid of a fire extinguishing facility, and a fire extinguishing facility for ejecting the fire extinguishing liquid by an output signal of the receiver 600 700), and a terminating resistor (900) provided at the end of the temperature sensing type four-wire sensing line.

The above-mentioned high-temperature and temperature-sensing wire 4-wire structure can prevent the fire extinguishing solution from being extinguished due to the malfunction of the receiver due to external surge or the like, There is an advantage to be able to do.

10, 200: sensing unit, 11; Sensing line,
13, 300: protective tape, 14; covering,
100: a warmed-in sensing wire 4-wire, 105: a sensing wire 105 at 70 ° C,
110: 90 占 폚 sensing conductor, 120: common line 1 conductor,
130: common line 2 conductor, 400: sheath,
500: control unit, 600: receiver

Claims

In the four-wire system,
The above-mentioned constant-temperature sensing line 4-wire type,
Four conductors consisting of the 70 ° C sensing conductors 105, 90 ° C sensing conductors 110, the common line 1 conductors 120 and the common line 2 conductors 130 located on the inner side;
A sensing unit 200 surrounding each of the conductors;
A protective tape 300 surrounding the sensing unit;
And a cover (400) surrounding the protective tape.

The method according to claim 1,
Wherein the four conductors are formed by:
Wherein the sensing wire is a twisted structure in an oblique direction.

3. The method of claim 2,
Each of the conductors
Characterized in that the diameter is within a range of 0.8 mm ± 0.1 mm and is made of a hard wire alloy material.

3. The method of claim 2,
The sensing unit 200,
Wherein the thickness of the coating is within 0.2 mm ± 0.1 mm.

3. The method of claim 2,
The protective tape (300)
Wherein the polyester tape having a thickness of 0.025 mm ± 0.01 mm is taped to a thickness within a range of 1 mm ± 0.1 mm.

3. The method of claim 2,
The envelope (400)
Characterized in that it is made of a polyvinyl chloride (PVC) material having a thickness within a range of 0.5 mm ± 0.5 mm.

In the four-wire system,
The above-mentioned constant-temperature sensing line 4-wire type,
The 90 ° sensing wire 110, the common wire 1 conductor 120 and the common wire 2 conductor 130 are formed in a twisted structure, and each conductor has a diameter A conductor portion made of a hard wire alloy material and having a diameter within a range of 0.8 mm ± 0.1 mm;
A sensing part 200 composed of a heat-resistant resin insulator material and having a coating thickness within 0.2 mm ± 0.1 mm;
A protective tape 300 having a thickness of 0.025 mm ± 0.01 mm and taped with a polyester tape within a range of 1 mm ± 0.1 mm;
And a sheath (400) made of a polyvinyl chloride (PVC) material having a thickness within a range of 0.5 mm ± 0.5 mm.