Bus duct optical fiber temperature measuring system with fire detection function

Abstract

The invention discloses a bus duct optical fiber temperature measuring system with a fire detection function. The bus duct optical fiber temperature measuring system comprises more than one bus duct unit; a bus duct coupling part for connecting the bus duct units to each other; the thermal detection plate is attached to the lower end of the bus duct unit; the bus duct optical cable is laid between the bus duct unit and the thermal detection plate along the length direction; and an optical cable for a coupling part sensor, which is formed by winding a bus duct optical cable by a predetermined length or more and attaching the bus duct optical cable to the lower end of the coupling part. The present invention has the following advantages: it is possible to provide a bus duct optical fiber temperature measurement system having a fire detection function, which measures the temperature of a bus duct connection part by laying an optical cable for a sensor along a thermal detection plate fixed to the lower end of a bus duct unit part, and laying an optical sensor cable on the bus duct connection part in a clinging manner; therefore, bus duct accidents can be prevented, and fire in the whole space provided with the bus duct can be detected in an early stage by measuring the temperature of the thermal detection plate.

Description

TECHNICAL FIELD

[0001] The present application relates to a bus duct optical fiber temperature measurement system with a fire detection function, and more particularly, to a bus duct optical fiber temperature measurement system with a fire detection function in which a thermal detection plate for detecting a fire is provided below a bus duct unit, and a sensor optical cable laid on the thermal detection plate is used to implement a fire detection function. BACKGROUND

[0002] The contents described in this section only provide background information for the present embodiment and do not constitute prior art.

[0003] A bus duct powered by an alternative power cable is widely used as a power supply method because it is easy to set up and replace, and the construction cost is lower than that of a power cable of the same capacity, but since the bus duct is constructed by assembling bus duct units of a predetermined length on site, there is a bus duct coupling portion for connecting the bus duct and the bus duct unit.

[0004] Power accidents of the bus duct are usually caused by loosening of the bolts and nuts used to fasten the coupling portion and the bus duct unit due to long-term thermal changes and vibrations, which increases the contact resistance, thereby often causing a fire.

[0005] In order to prevent such accidents, a temperature measurement system is currently being operated by providing a temperature measurement module having a temperature sensor and a communication circuit at the coupling portion, and continuously measuring and monitoring the temperature of the entire bus duct coupling portion in a manner in which the module and the module are connected using a wire for power supply and communication, and as a more advanced technology, the use of an optical fiber temperature measurement system using an optical fiber instead of a temperature sensor to measure the temperature of the coupling portion is also increasing.

[0006] When using an optical fiber for temperature measurement, it is not affected by external electrical noise, and temperature can be measured without any electrical device inside the bus duct, so temperature can be measured more safely.

[0007] However, in the optical fiber temperature measurement system using the prior art, even if the sensor optical cable is laid throughout the bus duct, its function is limited to measuring the temperature of the coupling portion.

[0008] Therefore, in order to overcome the limitations of the prior art, the present application proposes a bus duct optical fiber temperature measurement system with a fire detection function, which can use a bus duct optical fiber temperature measurement system with a fire detection function, and monitor the entire space where the bus duct is installed for a fire using a sensor optical cable laid between the coupling portions.

[0009] PRIOR ART DOCUMENT

[0010] PATENT DOCUMENT

[0011] Patent Document 1: Korean Patent Publication No. 10-2236338, published on April 5, 2021 (Title: DC high-voltage bus duct temperature monitoring system for electric vehicle power supply)

[0012] Patent Document 2: Korean Patent Publication No. 10-2356233, published on January 28, 2022 (Title: Bus duct coupling portion and bus duct multi-point temperature monitoring system including the same)

[0013] Patent Document 3: Korean Patent Publication No. 10-2169705, published on October 23, 2020 (Title: Bus duct multi-point temperature monitoring system and temperature monitoring method thereof). SUMMARY

[0014] The present application has been made to solve the problems of the prior art described above, and its main object is to provide a bus duct optical fiber temperature measurement system having a fire detection function as follows: when using an optical fiber temperature measurement system for measuring the temperature of a bus duct coupling portion, it has a function of monitoring a space in which a bus duct is installed for fire by laying a sensor optical cable between the coupling portions.

[0015] Also, another object of the present application is to provide a bus duct optical fiber temperature measurement system having a fire detection function as follows: by laying a sensor optical cable along a heat detection plate fixed to the lower end of a bus duct unit portion and laying an optical sensor cable in a close manner at the bus duct coupling portion to measure the temperature of the bus duct coupling portion, it is possible to prevent a bus duct accident, and by measuring the temperature of the heat detection plate, it is possible to detect a fire in a space in which a bus duct is installed at an early stage.

[0016] The problems to be solved by the present application are not limited to the above-mentioned problems, and other problems to be solved that are not mentioned can be clearly understood by a person skilled in the art to which the present application pertains from the following description.

[0017] An embodiment of the present application for achieving the above object provides a bus duct optical fiber temperature measurement system having a fire detection function, which adds a fire detection function to an optical fiber temperature measurement system for measuring the temperature of a bus duct, characterized by comprising: one or more bus duct units; a bus duct coupling portion for connecting the bus duct units to each other; a heat detection plate attached to the lower end of the bus duct unit; a bus duct optical cable laid in the length direction between the bus duct unit and the heat detection plate; and a coupling portion sensor optical cable formed by winding the bus duct optical cable by a predetermined length or more and attaching it to the lower end of the coupling portion.

[0018] The system of the present application can further include a spacer for fixing the bus duct unit and the heat detection plate.

[0019] Both ends of the sensor optical cable of the upper portion of the heat detection plate can be folded upward along the length direction of the heat detection plate to prevent the sensor optical cable from being detached from the heat detection plate due to external vibration or impact.

[0020] The coupling portion sensor optical cable can be fixed to the coupling portion by a fixing band between the coupling portion and the fixing close plate.

[0021] The system of the present application can further include a hanger capable of being fixed to a ceiling or a wall to prevent the bus duct unit from moving.

[0022] The length of the heat detection plate can be the same as the length of the bus duct unit.

[0023] The heat detection plate can be attached to the upper end of the bus duct unit.

[0024] The bus duct unit, the coupling portion sensor optical cable laid on the coupling portion of the bus duct, and the bus duct optical cable can be connected to an optical fiber temperature measuring device, and the optical fiber temperature measuring device can be connected to an operation computer.

[0025] The optical fiber temperature measuring device or the operation computer can be linked to a fire alarm receiver for fire fighting.

[0026] When the heat detection plate receives heat gas caused by fire, the heat gas is transferred to the coupling portion sensor optical cable or the bus duct optical cable laid on the heat detection plate, and the optical fiber temperature measuring device to which the coupling portion sensor optical cable or the bus duct optical cable is connected can determine whether a fire has occurred.

[0027] The bus duct optical fiber temperature measuring system with a fire detection function according to the present application has the following effects: it can provide a bus duct optical fiber temperature measuring system with a fire detection function as follows: when an optical fiber temperature measuring system for measuring the temperature of a bus duct coupling portion is used, it has a function of monitoring a space in which a bus duct is installed for fire by using a sensor optical cable laid between coupling portions.

[0028] Also, it has the following effects: it can provide a bus duct optical fiber temperature measuring system with a fire detection function as follows: by laying a sensor optical cable along a heat detection plate fixed to the lower end of a bus duct unit portion and laying an optical sensor cable in a close manner at a bus duct coupling portion to measure the temperature of the bus duct coupling portion, it can prevent a bus duct accident, and by measuring the temperature of the heat detection plate, it can detect a fire in a space in which a bus duct is installed at an early stage.

[0029] The effects obtainable with the present application are not limited to those described above, and other effects that are not mentioned will become apparent to those skilled in the art from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings provide exemplary embodiments of the present application and together with the general description of the application given above and the detailed description of the application below, explain the features and advantages of the present application.

[0031] Figure 1 An example of a sensor optical cable layout for a bus duct optical fiber temperature measurement system of the related art.

[0032] Figure 2 An example of an optical cable layout for a bus duct optical fiber temperature measurement system with a fire detection function according to an embodiment of the present application.

[0033] Figure 3 A side view schematic of an optical cable layout for a bus duct optical fiber temperature measurement system with a fire detection function according to an embodiment of the present application.

[0034] Figure 4 An example of a structure of a bus duct optical fiber temperature measurement system with a fire detection function according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] Hereinafter, a preferred embodiment of the present application will be described in detail with reference to the accompanying drawings.

[0036] Figure 1 An example of a sensor optical cable layout for a bus duct optical fiber temperature measurement system of the related art.

[0037] As Figure 1 shown in the related art bus duct optical fiber temperature measurement system, a joint portion sensor optical cable 3 for measuring the temperature of a bus duct joint portion 2 and a bus duct optical cable 4 of a bus duct unit 1 portion are laid on the bus duct unit 1 and the joint portion 2.

[0038] In order to more accurately measure the temperature, the joint portion sensor optical cable 3 is attached and laid by winding the bus duct optical cable 4 over a prescribed length or more.

[0039] The function of the related art bus duct optical fiber temperature measurement system is limited to measuring the temperature of the bus duct joint portion 2 as a main monitoring point.

[0040] Figure 2 An example of an optical cable layout for a bus duct optical fiber temperature measurement system with a fire detection function according to an embodiment of the present application.

[0041] In the bus duct optical fiber temperature measuring system with a fire detection function according to an embodiment of the present application, a bus duct optical cable 4 is laid at the lower end or upper end of a bus duct unit 1, and the bus duct optical cable 4 is wound around a bus duct coupling portion 2, thereby serving as a coupling portion sensor optical cable 3.

[0042] In the bus duct optical fiber temperature measuring system with a fire detection function according to an embodiment of the present application, a thermal detection plate 5 is provided at the lower end or upper end of the bus duct unit 1, and a bus duct optical cable 4 and a coupling portion sensor optical cable 3 are laid between the bus duct unit 1 and the thermal detection plate.

[0043] In order to maximize the collection of fire heat, it is preferable that the length of the thermal detection plate 5 is the same as the length of the bus duct unit 1.

[0044] Figure 3 A side view of the bus duct optical fiber temperature measuring system with a fire detection function according to an embodiment of the present application is shown.

[0045] As shown in FIG. 1, the bus duct optical fiber temperature measuring system with a fire detection function according to an embodiment of the present application can be more specifically confirmed from the side of the bus duct. Figure 3

[0046] In order to implement a fire detection function in the prior art system, the bus duct optical fiber temperature measuring system with a fire detection function according to an embodiment of the present application attaches a thermal detection plate 5 to the lower end or upper end of a bus duct unit 1 to easily collect fire heat, and a bus duct optical cable 4 is laid thereon and passed through.

[0047] In the case of the coupling portion 2, in order to accurately measure the temperature of the coupling portion 2, the bus duct optical cable 4 is wound for a length of more than a predetermined length, and is attached to the lower end or upper end of the coupling portion 2 as a coupling portion sensor optical cable 3.

[0048] The bus duct unit 1 and the thermal detection plate 5 at the lower end are fixed using a gasket 6.

[0049] Preferably, the gasket 6 is made of a material having a thermal conductivity as low as possible.

[0050] Preferably, the sensor optical cable 4 on the thermal detection plate 5 is folded in the length direction of the thermal detection plate 5 at both ends, in order to prevent the sensor optical cable 4 from being detached from the thermal detection plate 5 due to external vibration or impact.

[0051] The coupling portion sensor optical cable 3 for measuring the temperature of the bus duct coupling portion 2 is wound and laid in close contact with the coupling portion 2, and thus a fixing band 8 and a fixing close plate 7 are used, the wound coupling portion sensor optical cable 3 is placed between the coupling portion 2 and the fixing close plate 7, and is fixed to the coupling portion 2 using the fixing band 8. ​

[0052] In order to prevent the bus duct unit 1 from moving, the hanger 9 can be fixed to a ceiling or a wall, etc.

[0053] Figure 4 A structure diagram of the bus duct optical fiber temperature measurement system with fire detection function according to the present embodiment.

[0054] The joint sensor optical cable 3 and the bus duct optical cable 4 laid on the bus duct unit 1 and the bus duct joint 2 are connected to the optical fiber temperature measurement device 10, and the optical fiber temperature measurement device 10 is connected to the operation computer 11.

[0055] According to the situation, the optical fiber temperature measurement device 10 or the operation computer 11 can also be linked with the fire alarm receiver 12.

[0056] The bus duct optical fiber temperature measurement system with fire detection function thus configured is configured in the manner as shown in Figure 4 , and can perform continuous temperature measurement that cannot be achieved by the fire detector of the prior art, so when the heat detection plate 5 receives heat gas caused by fire, the heat gas is transmitted to the joint sensor optical cable 3 or the bus duct optical cable 4 laid on the heat detection plate 5, and the optical fiber temperature measurement device 10 connected to the joint sensor optical cable 3 or the bus duct optical cable 4 judges whether a fire occurs, or the operation computer 11 judges whether a fire occurs according to the measured temperature information and outputs a fire alarm.

[0057] When the operation computer 11 judges whether a fire occurs, it can also output fire information to the fire alarm receiver 12.

[0058] The general fire alarm receiver sets independent temperature sensors at multiple positions to judge a fire, but the fire detection is limited to the positions where the temperature sensors are located, and the number of positions and the number of temperature sensors are limited, so if the fire point is far away from the fire alarm receiver, the fire alarm cannot be output in the early stage of the fire, and the fire alarm can only be output after the fire is quite fierce, resulting in many situations where the fire cannot be extinguished in the early stage of the fire.

[0059] In contrast, in the case of the bus duct optical fiber temperature measurement system with fire detection function, the temperature of all areas is continuously measured along the path where the bus duct is laid by using the heat detection plate 5 provided on the bus duct unit, the joint sensor optical cable 3 and the bus duct optical cable 4 on the heat detection plate 5, so that faster and more extensive fire detection can be achieved.

[0060] In fact, according to the fire law, a temperature measurement system using an optical fiber is laid in tunnels, power conduits, communication conduits, and public areas, and is used as a fire alarm. As described above, if a sensor optical cable is laid, not only the temperature of the joint 2 where a bus duct accident can occur can be monitored, but also a fire in the entire space where the bus duct is installed can be monitored.

[0061] Also, in the case of the prior art optical fiber temperature measurement system as shown in Figure 1 In the case of the prior art optical fiber temperature measurement system as shown in

[0062] Also, as a prior art method, a structure in which a bus duct temperature measurement sensor optical cable is used is a structure in which, since a worker performs a laying work on a bus duct or moves on the bus duct to inspect the bus duct, and also in order to prevent the sensor optical cable from being stepped on, a thin metal band is spirally wrapped around the optical fiber to protect the optical fiber from lateral pressure. Since the sensor optical cable needs to pass through a hanger and be laid along a bus duct, the tensile strength of the sensor optical cable must be high. Therefore, in order to increase the tensile strength of the optical cable, a sensor optical cable including a metal mesh structure is used, but in this case, not only the manufacturing cost increases due to the reinforcement of the product of the metal material, but also the sheath is thickened accordingly, resulting in an increase in thermal resistance, so that it takes a long time for an external temperature change to be transmitted to the inside of the sensor optical cable. That is, the response time to a fire is delayed.

[0063] On the contrary, in the case of the bus duct optical fiber temperature measurement system with a fire detection function of the present application, the sensor optical cable does not have a case where a worker steps on it while being laid, and is not exposed to a worker after being laid, and since it is disposed under the bus duct unit 1, it can be laid without being affected by the hanger 9, so that the sensor optical cable does not need to have a high tensile strength, and further, a relatively thin and simple structure sensor optical cable can be used, which can reduce the manufacturing cost, and also has the advantage that the sheath of the sensor optical cable is thin, so that the thermal resistance is reduced, and the temperature can be measured faster.

[0064] In the case of the joint portion sensor optical cable 3 laid in the bus duct joint portion 2, it can be provided at the upper end or the lower end of the joint portion 2, and since it is important to be close to the joint portion 2, the wound sensor optical cable 3 is arranged between the fixing close plate 7 having a size that can cover it and the bus duct joint portion 2, and the fixing close plate 7 and the joint portion sensor optical cable 3 are fixed to the joint portion 2 by the separate fixing band 8.

[0065] Figure 2 、 Figure 3 and Figure 4 The joint portion sensor optical cable 3, the bus duct optical cable 4, and the heat detection plate 5 are shown in FIGS. 1 to 4 as being located at the lower end of the bus duct unit 1 and the bus duct joint portion 2, but conversely, the joint portion sensor optical cable 3, the bus duct optical cable 4, and the heat detection plate 5 can also be located at the upper end of the bus duct unit 1 and the bus duct joint portion 2.

[0066] The combination of each block in the block diagrams and each step in the flowcharts attached to the present specification can be executed by computer program instructions. These computer program instructions can be loaded onto a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the instructions executed by the processor of the computer or other programmable data processing device can generate a means for performing the functions described in each block in the block diagrams or each step in the flowcharts. These computer program instructions can also be stored in a computer usable or computer readable memory that can direct the computer or other programmable data processing device to implement functions in a specific manner, so the instructions stored in the computer usable or computer readable memory can also produce an article of manufacture containing instructions for performing the functions described in each block in the block diagrams or each step in the flowcharts. Since the computer program instructions can also be loaded onto the computer or other programmable data processing device, a computer executable process can also be generated by executing a series of operation steps on the computer or other programmable data processing device, so that the instructions for executing the computer or other programmable data processing device provide steps for performing the functions described in each block in the block diagrams and each step in the flowcharts.

[0067] Also, each block or each step can represent a module, a program segment, or a part of code containing one or more executable instructions for performing a specific logical function. It should also be noted that in some alternative embodiments, the functions mentioned in the blocks or steps can also not occur in sequence. For example, two blocks or steps shown in succession can actually be executed substantially simultaneously, or sometimes these blocks or steps can be executed in reverse order according to the corresponding functions.

[0068] The above description is merely exemplary of the present technical idea, and those of ordinary skill in the art to which the present belongs can make various modifications and changes within the scope of the essential characteristics of the present without departing from the present. Therefore, the disclosed embodiments of the present are not intended to limit the present technical idea, but to illustrate the present technical idea, and the scope of the present technical idea is not limited to these embodiments. The scope of protection of the present should be interpreted based on the following claimed scope of invention, and all technical ideas within the equivalent scope thereof should be interpreted as included in the scope of protection of the present.

[0069] Industrial applicability

[0070] The bus duct optical fiber temperature measurement system with a fire detection function according to the present can be utilized as a solution that can provide a bus duct optical fiber temperature measurement system with a fire detection function, which measures the temperature of the bus duct coupling portion by laying a sensor optical cable along the heat detection plate fixed to the lower end of the bus duct unit portion and laying the optical sensor cable in close contact with the bus duct coupling portion, thereby preventing a bus duct accident, and by measuring the temperature of the heat detection plate, a fire in the entire space where the bus duct is installed can be detected at an early stage. In this regard, the limitations of the prior art are overcome, not only the related art is utilized, but also it has sufficient commercialization or operation possibility for the application device, and is explicitly implementable, and thus the present is an invention having industrial applicability.

Claims

1. A bus trunking fiber optic temperature measurement system with fire detection function, characterized in that a fire detection function is added to a fiber optic temperature measurement system used for measuring bus trunking temperature, wherein... include: One or more busbar units; Busbar connection part, used to connect the busbar units to each other; A thermal detection plate is attached to the lower end of the busbar unit; The busbar optical cable is laid along its length between the busbar unit and the thermal detection plate; and The optical cable for the sensor in the connector is formed by winding the optical cable of the busbar trunking to a predetermined length and attaching it to the lower end of the connector.

2. The bus trunking fiber optic temperature measurement system with fire detection function according to claim 1, characterized in that, It also includes gaskets for securing the busbar unit and the thermal detection plate.

3. The bus trunking fiber optic temperature measurement system with fire detection function according to claim 2, characterized in that, The two ends of the sensor optical cable on the upper part of the thermal detection plate are folded upward along the length of the thermal detection plate to prevent the sensor optical cable from detaching from the thermal detection plate due to external vibration or impact.

4. The bus trunking fiber optic temperature measurement system with fire detection function according to claim 1, characterized in that, The optical cable for the sensor in the connecting part is fixed to the connecting part by a fixing strap between the connecting part and the fixing plate.

5. The bus trunking fiber optic temperature measurement system with fire detection function according to claim 1, characterized in that, It also includes a hanger that can be fixed to the ceiling or wall to prevent the busbar unit from moving.

6. The bus trunking fiber optic temperature measurement system with fire detection function according to claim 1, characterized in that, The length of the thermal detection plate is the same as the length of the busbar unit.

7. The bus trunking fiber optic temperature measurement system with fire detection function according to claim 1, characterized in that, The thermal detection plate is attached to the upper end of the busbar unit.

8. The bus trunking fiber optic temperature measurement system with fire detection function according to claim 1, characterized in that, The busbar unit, the connecting part sensor optical cable laid in the busbar connection part, and the busbar optical cable are connected to the optical fiber temperature measuring device. The fiber optic temperature measurement device is connected to the operating computer.

9. The bus trunking fiber optic temperature measurement system with fire detection function according to claim 8, characterized in that, The fiber optic temperature measurement device or operating computer is linked with the fire alarm receiver for fire protection.

10. The bus trunking fiber optic temperature measurement system with fire detection function according to claim 9, characterized in that, When the thermal detection plate receives hot air caused by a fire, the hot air is transferred to the optical fiber cable for the sensor or the optical fiber cable of the bus trunking laid on the thermal detection plate. The fiber optic temperature measuring device, connected to the sensor in the connection section by an optical cable or a busbar optical cable, determines whether a fire has occurred.

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