JP2018185263A - silo - Google Patents

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JP2018185263A
JP2018185263A JP2017088226A JP2017088226A JP2018185263A JP 2018185263 A JP2018185263 A JP 2018185263A JP 2017088226 A JP2017088226 A JP 2017088226A JP 2017088226 A JP2017088226 A JP 2017088226A JP 2018185263 A JP2018185263 A JP 2018185263A
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Prior art keywords
coal
side wall
silo
measuring cable
temperature measuring
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JP2017088226A
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JP6864540B2 (en
Inventor
裕晶 鈴木
Hiroaki Suzuki
裕晶 鈴木
輝夫 日置
Teruo Hioki
輝夫 日置
前田　守彦
Morihiko Maeda
守彦 前田
大介 甲斐
Daisuke Kai
大介 甲斐
理 桑野
Osamu Kuwano
理 桑野
敦 糸川
Atsushi Itokawa
敦 糸川
秀成 西浦
Hidenari Nishiura
秀成 西浦
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Chiyoda Corp
Kansai Electric Power Co Inc
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Chiyoda Corp
Kansai Electric Power Co Inc
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Priority to JP2017088226A priority Critical patent/JP6864540B2/en
Priority to PCT/JP2018/015753 priority patent/WO2018198865A1/en
Publication of JP2018185263A publication Critical patent/JP2018185263A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/48—Arrangements of indicating or measuring devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/10—Thermometers specially adapted for specific purposes for measuring temperature within piled or stacked materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples

Abstract

PROBLEM TO BE SOLVED: To properly detect heat generation of coal stored in a coal silo.SOLUTION: A coal silo 100 includes: a side wall 104 standing on a base 102; and a temperature measuring cable 10 including a thermocouple for detecting heat generation of the coal stored in the coal silo 100. The temeperature measuring cable 10 is suspended near the side wall 104, and the thermocouple is buried in the coal near the side wall 104.SELECTED DRAWING: Figure 1

Description

本発明は、サイロに関し、特に石炭を貯蔵する石炭サイロに関する。   The present invention relates to a silo, and more particularly to a coal silo for storing coal.

石炭火力発電所等に設置される石炭サイロでは、石炭の貯蔵期間が長くなると石炭サイロ内で石炭が酸化発熱して自然発火が生じる場合がある。そこで、石炭サイロ内に貯蔵された石炭の発熱を監視し、発熱が発生した場合には石炭の払い出しや放水を行って発熱箇所の冷却を行っている。   In a coal silo installed in a coal-fired power plant or the like, if the storage period of the coal becomes long, the coal may oxidize and generate heat in the coal silo and spontaneous ignition may occur. Therefore, the heat generation of the coal stored in the coal silo is monitored, and when the heat generation occurs, the coal is discharged or discharged to cool the heat generation portion.

従来、石炭サイロ内に貯蔵された石炭の発熱を監視するために、熱電対を備えた測温ケーブルを石炭サイロの略中央部分に吊り下げて貯蔵石炭中に埋め込み、該熱電対からの信号を検出することにより、石炭の発熱を監視する方法が知られている（例えば特許文献１参照）。   Conventionally, in order to monitor the heat generation of coal stored in a coal silo, a temperature measuring cable equipped with a thermocouple is suspended in a substantially central portion of the coal silo and embedded in the stored coal, and a signal from the thermocouple is received. A method for monitoring the heat generation of coal by detection is known (see, for example, Patent Document 1).

特開２００９−６８９５４号公報JP 2009-68954 A

しかしながら、上記のような方法の場合、石炭の出し入れに伴い測温ケーブルの熱電対の位置が変わり、発熱の生じやすい箇所の温度測定を行うことが難しい可能性やできない可能性がある。   However, in the case of the method as described above, the position of the thermocouple of the temperature measuring cable changes with the taking in and out of the coal, and it may be difficult or impossible to measure the temperature at a place where heat generation is likely to occur.

本発明は、こうした状況を鑑みてなされたものであり、その目的は、サイロ内の貯蔵物の発熱を適切に検知できる技術を提供することにある。   This invention is made | formed in view of such a condition, The objective is to provide the technique which can detect the heat_generation | fever of the storage thing in a silo appropriately.

上記課題を解決するために、本発明のある態様のサイロは、基礎上に立設された側壁と、貯蔵された貯蔵物の発熱を検出するための温度センサとを備える。温度センサは、側壁の近傍の貯蔵物中に埋設される。   In order to solve the above-described problems, a silo according to an aspect of the present invention includes a side wall erected on a foundation and a temperature sensor for detecting heat generation of a stored product. The temperature sensor is embedded in the storage near the side wall.

温度センサは、側壁の近傍に垂下されるケーブルに設けられていてもよい。   The temperature sensor may be provided in a cable that hangs in the vicinity of the side wall.

ケーブルは、側壁に設けられた滑車を介して、側壁の近傍に垂下されてもよい。   The cable may be hung near the side wall via a pulley provided on the side wall.

貯蔵物の発熱時に生じたガスを検知するためのガスパイプがケーブルに設けられてもよい。   The cable may be provided with a gas pipe for detecting gas generated when the stored item is heated.

なお、以上の構成要素の任意の組合せ、本発明の表現を方法、装置、システム、記録媒体、コンピュータプログラムなどの間で変換したものもまた、本発明の態様として有効である。   It should be noted that any combination of the above-described constituent elements and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program, etc. are also effective as an aspect of the present invention.

本発明によれば、サイロ内の貯蔵物の発熱を適切に検知できる。   ADVANTAGE OF THE INVENTION According to this invention, the heat_generation | fever of the stored item in a silo can be detected appropriately.

本発明の実施形態に係る石炭サイロの構成を説明するための図である。It is a figure for demonstrating the structure of the coal silo which concerns on embodiment of this invention. 測温ケーブルの構造を説明するための概略断面図である。It is a schematic sectional drawing for demonstrating the structure of a temperature measuring cable. 石炭サイロ内に石炭を長期間貯蔵したときの石炭温度分布の一例を示す図である。It is a figure which shows an example of coal temperature distribution when coal is stored in a coal silo for a long period of time. 測温ケーブルの変形例を説明するための概略断面図である。It is a schematic sectional drawing for demonstrating the modification of a temperature measuring cable.

図１は、本発明の実施形態に係る石炭サイロ１００の構成を説明するための図である。   FIG. 1 is a diagram for explaining a configuration of a coal silo 100 according to an embodiment of the present invention.

石炭サイロ１００は、例えば、内径６０ｍ、高さ７５ｍ、石炭容量１０万トンの大型のものであってよい。   The coal silo 100 may be, for example, a large one having an inner diameter of 60 m, a height of 75 m, and a coal capacity of 100,000 tons.

図１に示すように、石炭サイロ１００は、基礎１０２と、基礎１０２上に立設された側壁１０４と、側壁１０４の上に形成された屋根１０６とを備える。石炭サイロ１００内には石炭１２０が貯蔵される。側壁１０４は、略円筒形状の下部側壁１０４ａと、下部側壁１０４ａの上に形成された略円錐台形状の上部側壁１０４ｂとから成る。   As shown in FIG. 1, the coal silo 100 includes a foundation 102, a side wall 104 standing on the foundation 102, and a roof 106 formed on the side wall 104. Coal 120 is stored in the coal silo 100. The side wall 104 includes a substantially cylindrical lower side wall 104a and a substantially truncated cone-shaped upper side wall 104b formed on the lower side wall 104a.

石炭サイロ１００の上部には積付所ステージ１０８が設けられている。積付所ステージ１０８には、石炭を搬入するための搬入コンベヤ１１０が設けられている。搬入コンベヤ１１０によって運ばれた石炭は、積付所ステージ１０８から落下されて石炭サイロ１００内に貯蔵される。   At the upper part of the coal silo 100, a loading station stage 108 is provided. The loading station stage 108 is provided with a carry-in conveyor 110 for carrying coal. Coal carried by the carry-in conveyor 110 is dropped from the loading station stage 108 and stored in the coal silo 100.

石炭サイロ１００の底部には、複数の小コーン（小仕切板、小仕切壁）１１２と、複数の大コーン（大仕切板、大仕切壁）１１４が設けられている。小コーン１１２の下方には、搬出コンベヤ１１６が設けられている。石炭サイロ１００内に貯蔵された石炭１２０は、底部に設けられた開口部から搬出コンベヤ１１６に払い出され、搬出コンベヤ１１６によって石炭サイロ１００の外に搬出される。   At the bottom of the coal silo 100, a plurality of small cones (small partition plates, small partition walls) 112 and a plurality of large cones (large partition plates, large partition walls) 114 are provided. A carry-out conveyor 116 is provided below the small cone 112. The coal 120 stored in the coal silo 100 is discharged to the carry-out conveyor 116 from the opening provided at the bottom, and is carried out of the coal silo 100 by the carry-out conveyor 116.

石炭サイロ１００は、貯蔵された石炭１２０の発熱を検出するための温度センサを備える。本実施形態の石炭サイロ１００は、貯蔵された石炭中の温度を検出するための測温ケーブル１０を備える。   Coal silo 100 includes a temperature sensor for detecting the heat generation of stored coal 120. The coal silo 100 of this embodiment includes a temperature measuring cable 10 for detecting the temperature in stored coal.

測温ケーブル１０は、内部に温度センサとして熱電対を備える。測温ケーブル１０の一端１０ａは、積付所ステージ１０８の下面に固定される。測温ケーブル１０は、積付所ステージ１０８から上部側壁１０４ｂに沿って斜め下方に延び、上部側壁１０４ｂと下部側壁１０４ａの境界部付近に設けられた滑車１２を介して下部側壁１０４ａの近傍に垂下され、下部側壁１０４ａの近傍の石炭中に埋設されている。   The temperature measuring cable 10 includes a thermocouple as a temperature sensor. One end 10 a of the temperature measuring cable 10 is fixed to the lower surface of the loading station stage 108. The temperature measuring cable 10 extends obliquely downward along the upper side wall 104b from the loading station stage 108, and hangs down in the vicinity of the lower side wall 104a via a pulley 12 provided near the boundary between the upper side wall 104b and the lower side wall 104a. And embedded in the coal in the vicinity of the lower side wall 104a.

図２は、測温ケーブル１０の構造を説明するための概略断面図である。図２に示すように、ステンレスフレキシブルチューブ２０内に６本のシース熱電対２１が挿通されており、さらにステンレスフレキシブルチューブ２０を外周に複数本のワイヤーロープ２２が巻回されている。このようにシース熱電対２１をステンレスフレキシブルチューブ２０で保護し、さらにステンレスフレキシブルチューブ２０をワイヤーロープ２２で覆うことにより、石炭とシース熱電対２１が直接接触してシース熱電対２１が破損するのを防ぐことができる。６本のシース熱電対２１は、その先端までの長さがそれぞれ異なっており、石炭サイロ１００の高さ方向において等間隔で６箇所の温度を測定できるようになっている。   FIG. 2 is a schematic cross-sectional view for explaining the structure of the temperature measuring cable 10. As shown in FIG. 2, six sheathed thermocouples 21 are inserted into the stainless steel flexible tube 20, and a plurality of wire ropes 22 are wound around the stainless steel flexible tube 20. Thus, by protecting the sheath thermocouple 21 with the stainless steel flexible tube 20 and further covering the stainless steel flexible tube 20 with the wire rope 22, coal and the sheath thermocouple 21 are in direct contact with each other and the sheath thermocouple 21 is damaged. Can be prevented. The six sheathed thermocouples 21 have different lengths up to their tips, and can measure six temperatures at equal intervals in the height direction of the coal silo 100.

図３は、石炭サイロ１００内に石炭を長期間貯蔵したときの石炭温度分布の一例を示す。図３ではハッチングにより石炭の温度を表している。また、図３中の破線で示す測温ケーブル３０は、石炭サイロの略中央部分に吊り下げた従来の測温ケーブルの配置例を示す。   FIG. 3 shows an example of a coal temperature distribution when coal is stored in the coal silo 100 for a long period of time. In FIG. 3, the temperature of coal is represented by hatching. Moreover, the temperature measuring cable 30 shown with the broken line in FIG. 3 shows the example of arrangement | positioning of the conventional temperature measuring cable hung on the approximate center part of the coal silo.

図３から、石炭サイロ１００の側壁１０４（下部側壁１０４ａ）の近傍に位置する石炭に発熱が生じやすいことが分かる。石炭サイロ１００では、石炭を搬出コンベヤ１１６に払い出すために底部に設けられた開口部から空気が上方に流れ、この空気により石炭が酸化されて発熱が生じる（図３において矢印は空気の流れを表す）。石炭サイロ１００で上方から石炭を落下させて貯蔵する場合、側壁１０４の近傍には大きな石炭塊が偏って位置しやすいため、側壁１０４の近傍は空隙が多く空気の流れが速くなる。その結果、側壁１０４の近傍に位置する石炭は酸化反応が促進されやすく、発熱が生じやすい。   From FIG. 3, it can be seen that the coal located near the side wall 104 (lower side wall 104 a) of the coal silo 100 is likely to generate heat. In the coal silo 100, air flows upward from an opening provided at the bottom for discharging the coal to the carry-out conveyor 116, and this air oxidizes the coal to generate heat (in FIG. 3, arrows indicate the flow of air). Represent). When coal is dropped from above and stored in the coal silo 100, a large coal lump is likely to be biased near the side wall 104, so that there are many gaps in the vicinity of the side wall 104 and the air flow is faster. As a result, the coal located in the vicinity of the side wall 104 is likely to promote the oxidation reaction and easily generate heat.

図３中に破線で示す従来のように測温ケーブル３０を石炭サイロの略中央部分に吊り下げた場合、石炭の出し入れに伴って熱電対の位置が変わり、発熱の生じやすい箇所の温度測定を行うことが難しい可能性がある。すなわち、測温ケーブル中の熱電対の位置は安定せず、偶然に左右されるということである。例えば測温ケーブル内の熱電対が側壁の近傍に位置すれば発熱の生じやすい箇所（例えば図３で８０℃や８９℃以上の箇所）の温度測定を行うことができるが、熱電対が石炭サイロの中央部分に位置すれば発熱があまり生じない箇所（例えば図３で３０℃の箇所）の温度を測定していることになる。   When the temperature measuring cable 30 is hung at the approximate center of the coal silo as shown by the broken line in FIG. 3, the position of the thermocouple changes with the loading and unloading of the coal, and the temperature is measured at a place where heat generation is likely to occur. It can be difficult to do. That is, the position of the thermocouple in the temperature measuring cable is not stable and depends on chance. For example, if the thermocouple in the temperature measuring cable is located in the vicinity of the side wall, the temperature can be measured at a place where heat generation is likely to occur (for example, at 80 ° C. or 89 ° C. or more in FIG. 3). If it is located in the central part of the area, the temperature at a place where heat generation is not so much (for example, a place at 30 ° C. in FIG. 3) is measured.

一方、本実施形態に係る石炭サイロ１００では、測温ケーブル１０が側壁１０４の近傍に垂下されているので、発熱が生じやすい側壁１０４の近傍の石炭の温度を適切に検知することができる。石炭の出し入れに応じて多少、測温ケーブル１０の位置が変動することはあるが、石炭サイロの略中央部分に吊り下げた場合と比べればその変動は小さい。   On the other hand, in the coal silo 100 according to the present embodiment, since the temperature measuring cable 10 is suspended near the side wall 104, it is possible to appropriately detect the temperature of the coal near the side wall 104 where heat generation is likely to occur. Although the position of the temperature measuring cable 10 may fluctuate somewhat according to the loading / unloading of coal, the fluctuation is small as compared with the case where the temperature measuring cable 10 is hung on the substantially central portion of the coal silo.

本実施形態で用いているような吊り下げ式の測温ケーブル１０では、石炭の出し入れに伴って、測温ケーブル１０と石炭との間に下向きの摩擦力が生じる。従来のように石炭サイロの略中央部分に吊り下げた場合、積付所ステージ１０８に過度の荷重が作用するおそれがある。   In the suspended temperature measuring cable 10 used in the present embodiment, a downward frictional force is generated between the temperature measuring cable 10 and the coal as the coal is taken in and out. When it is hung at a substantially central part of the coal silo as in the prior art, an excessive load may act on the loading station stage 108.

一方、本実施形態に係る石炭サイロ１００では、測温ケーブル１０は滑車１２を介して吊り下げられているので、測温ケーブル１０と石炭との間に生じる下向きの摩擦力が積付所ステージ１０８と滑車１２とに分散される。その結果、積付所ステージ１０８に作用する荷重を軽減することができる。   On the other hand, in the coal silo 100 according to the present embodiment, since the temperature measuring cable 10 is suspended via the pulley 12, the downward frictional force generated between the temperature measuring cable 10 and the coal is caused by the loading station stage 108. And the pulley 12. As a result, the load acting on the loading station stage 108 can be reduced.

図４は、測温ケーブルの変形例を説明するための概略断面図である。図４に示す測温ケーブル４０において、図２に示す測温ケーブル１０と同一または対応する構成要素には同一の符号を付し、重複する説明は適宜省略する。   FIG. 4 is a schematic cross-sectional view for explaining a modification of the temperature measuring cable. In the temperature measurement cable 40 shown in FIG. 4, the same or corresponding components as those of the temperature measurement cable 10 shown in FIG.

図４に示す測温ケーブル４０は、ステンレスフレキシブルチューブ２０内にシース熱電対２１に加えてガスパイプ４１が挿通されている点が図２に示す測温ケーブル１０と異なる。このガスパイプ４１は、石炭の発熱時に生じるガスを検知するためのものである。ガスパイプ４１内に入ったガスは、ガスパイプ４１内を通って例えば積付所ステージ１０８上に設けられたガスセンサ（図示せず）により検知される。このように、シース熱電対２１による温度検知に加えて、ガス検知を行う構成とすることにより、例えば一方のセンサが故障した場合などでも、温度センサによる温度検知とガスセンサによるガス検知とのいずれか一方に基づいて石炭の発熱を検出することもできるし、温度センサによる温度検知とガスセンサによるガス検知との両方に基づいて石炭の発熱を検出することによって、石炭の発熱をより高い精度で検出することもできる。   The temperature measuring cable 40 shown in FIG. 4 is different from the temperature measuring cable 10 shown in FIG. 2 in that a gas pipe 41 is inserted in the stainless steel flexible tube 20 in addition to the sheath thermocouple 21. The gas pipe 41 is for detecting gas generated when coal generates heat. The gas that has entered the gas pipe 41 passes through the gas pipe 41 and is detected by, for example, a gas sensor (not shown) provided on the loading station stage 108. As described above, in addition to temperature detection by the sheath thermocouple 21, gas detection is performed, so that, for example, even when one of the sensors fails, one of temperature detection by the temperature sensor and gas detection by the gas sensor. The heat generation of coal can be detected based on one side, or the heat generation of coal is detected with higher accuracy by detecting the heat generation of coal based on both the temperature detection by the temperature sensor and the gas detection by the gas sensor. You can also.

以上、本発明を実施例をもとに説明した。この実施例は例示であり、それらの各構成要素や各処理プロセスの組合せにいろいろな変形例が可能なこと、またそうした変形例も本発明の範囲にあることは当業者に理解されるところである。   In the above, this invention was demonstrated based on the Example. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to the combination of each component and each processing process, and such modifications are also within the scope of the present invention. .

上述の実施形態の石炭サイロ１００では、測温ケーブル１０は滑車１２を介して吊り下げられているものとしたが、滑車１２に代えて、例えば釣り針状などの吊り具（フック）を用いるものとしてもよい。   In the coal silo 100 of the above-described embodiment, the temperature measuring cable 10 is suspended via the pulley 12. However, instead of the pulley 12, for example, a hook (hook) or the like is used. Also good.

上述の実施形態の石炭サイロ１００は、側壁１０４が略円筒形状の下部側壁１０４ａと略円錐台形状の上部側壁１０４ｂとから成るものとしたが、本発明の石炭サイロはいかなる形状としてもよい。例えば、搬入コンベヤや搬出コンベヤによる石炭の搬入出方向を長手方向とする略直方体形状の石炭サイロとしてもよい。また、搬出コンベヤ１１６は、並列に４本設けられているものとしたが、１本や２本設けられているものとしても構わない。   In the coal silo 100 of the above-described embodiment, the side wall 104 is composed of the lower side wall 104a having a substantially cylindrical shape and the upper side wall 104b having a substantially truncated cone shape. However, the coal silo of the present invention may have any shape. For example, it is good also as a substantially rectangular solid-shaped coal silo which makes the longitudinal direction the carrying-in / out direction of coal by a carrying-in conveyor or a carrying-out conveyor. Further, four carry-out conveyors 116 are provided in parallel, but one or two carry-out conveyors 116 may be provided.

上述の実施形態では、石炭を貯蔵する石炭サイロを例として本発明を説明した。しかしながら、本発明は石炭サイロに限定されず、例えば、穀物サイロ、バイオマスサイロ、リサイクル固形燃料サイロ等の他のサイロにも適用可能である。   In the above-described embodiment, the present invention has been described using a coal silo that stores coal as an example. However, the present invention is not limited to coal silos, and can be applied to other silos such as grain silos, biomass silos, and recycled solid fuel silos.

１０、３０ 測温ケーブル、 １２ 滑車、 ２０ ステンレスフレキシブルチューブ、 ２１ シース熱電対、 ２２ ワイヤーロープ、 ４０ 測温ケーブル、 ４１ ガスパイプ、 １００ 石炭サイロ、 １０２ 基礎、 １０４ 側壁、 １０６ 屋根、 １０８ 積付所ステージ、 １１０ 搬入コンベヤ、 １１２ 小コーン、 １１４ 大コーン、 １１６ 搬出コンベヤ、 １２０ 石炭。   10, 30 temperature measurement cable, 12 pulley, 20 stainless steel flexible tube, 21 sheathed thermocouple, 22 wire rope, 40 temperature measurement cable, 41 gas pipe, 100 coal silo, 102 foundation, 104 side wall, 106 roof, 108 loading station stage , 110 carry-in conveyor, 112 small cone, 114 large cone, 116 carry-out conveyor, 120 coal.

Claims (4)

基礎上に立設された側壁と、
貯蔵された貯蔵物の発熱を検出するための温度センサと、
を備え、
前記温度センサは、前記側壁の近傍の貯蔵物中に埋設されることを特徴とするサイロ。 Side walls erected on the foundation;
A temperature sensor for detecting the exotherm of the stored product;
With
The silo, wherein the temperature sensor is embedded in a storage near the side wall. 前記温度センサは、前記側壁の近傍に垂下されるケーブルに設けられていることを特徴とする請求項１に記載のサイロ。   The silo according to claim 1, wherein the temperature sensor is provided on a cable that hangs in the vicinity of the side wall. 前記ケーブルは、前記側壁に設けられた滑車を介して、前記側壁の近傍に垂下されることを特徴とする請求項２に記載のサイロ。   The silo according to claim 2, wherein the cable is suspended near the side wall through a pulley provided on the side wall. 貯蔵物の発熱時に生じたガスを検知するためのガスパイプが前記ケーブルに設けられることを特徴とする請求項２または３に記載のサイロ。   The silo according to claim 2 or 3, wherein a gas pipe for detecting a gas generated when the stored item is heated is provided in the cable.
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KR102076107B1 (en) * 2019-02-22 2020-02-11 (주)아이스메카텍 Thermocouple replacement type with minimized measurement error due to slip prevention and heat resistance Fire monitoring and suppression unit

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102076107B1 (en) * 2019-02-22 2020-02-11 (주)아이스메카텍 Thermocouple replacement type with minimized measurement error due to slip prevention and heat resistance Fire monitoring and suppression unit

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