JPH03183806A - Device to melt snow around switching point in track - Google Patents
Device to melt snow around switching point in trackInfo
- Publication number
- JPH03183806A JPH03183806A JP1324458A JP32445889A JPH03183806A JP H03183806 A JPH03183806 A JP H03183806A JP 1324458 A JP1324458 A JP 1324458A JP 32445889 A JP32445889 A JP 32445889A JP H03183806 A JPH03183806 A JP H03183806A
- Authority
- JP
- Japan
- Prior art keywords
- track
- heat
- heat source
- duct
- snow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002844 melting Methods 0.000 claims abstract description 32
- 230000008018 melting Effects 0.000 claims description 31
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 238000009429 electrical wiring Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 235000016068 Berberis vulgaris Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Road Paving Structures (AREA)
- Railway Tracks (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、降雪地方の軌道敷内における軌道切替部付近
の融雪装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a snow melting device near a track switching section in a track bed in a snowy region.
（ロ）従来技術
冬季、降雪地方における軌道敷内の除雪は、ラッセル車
やロータリ車、人力等で除雪し、軌道車両の円滑な運転
を図ってきた。特に、軌道切替部（トングレール）にお
ける除雪は、非常に重要であり、積雪や軌道車両による
持込み雪等が凍結して軌道切替部の作動不良の原因とな
らないように、従来から種々の方法が採られている。(B) Prior Art In winter, snow removal from the track grounds in snowy regions has been done using Russell cars, rotary cars, human power, etc. to ensure smooth operation of track vehicles. In particular, snow removal at the track switching section (tongue rail) is extremely important, and various methods have been used to prevent accumulated snow and snow brought in by track vehicles from freezing and causing malfunction of the track switching section. It is taken.
軌道切替部には、降雪により積雪した雪と軌道車両の先
頭車先端に取り付けたスノー１ラウによって軌道切替部
の軌道部に堆積した雪を持込むいわゆる「持込み雪」と
が堆積する。したがって、軌道切替部における融雪対策
としては、次の２つの方法が考えられる。At the track switching section, so-called "carried-in snow" accumulates, which is snow accumulated due to snowfall and snow accumulated on the track section of the track switching section by the snow 1 lau attached to the tip of the leading car of the track vehicle. Therefore, the following two methods can be considered as snow melting measures at the track switching section.
■ 持込雪の防止
■ 軌道切替部に積雪した雪や氷の融解■の持ち込み雪
については、軌道切替部子前の軌道部をＭ雷することで
対処でき、軌道切替部の雪や装置の凍結を防止するため
に、軌道切替部での融雪装置か必要である。■ Preventing brought-in snow ■ Melting snow or ice that has accumulated on the track switching section ■ Can be dealt with by applying M lightning to the track section in front of the track switching section, preventing snow on the track switching section and equipment. To prevent freezing, a snow melting device is required at the track switching section.
従来の除雪・融雪方法としては、次のものがある。Conventional snow removal and snow melting methods include the following:
■ 除雪機で除雪（軌道上から５０ｎｍ前ｆ＆）シた後
、作業員がカンテラの熱や温風で融雪する方法
■ 熱風吹出し式融雪装置を用いて融雪する方法
■ 電熱融雪方法
これらの方法のうち、近年用いられてきた熱風吹出し式
融雪方法は、軌道外筐タイプと軌道内置タイプとかある
。いずれの場合も、熱風発生器により発生した熱風が、
ダクトによって融雪位置まで送られる。融雪位置におけ
るダクトは、軌道にそって軌道敷内や軌道外に設置され
、かつ、軌道に向かって熱風吹出し口が長手方向に間欠
的に設けられている。この吹出し口より吹き出される熱
風によって、先頭車両のスノープラウ等によって軌道敷
内に持ち込まれた雪が融かされる。■ A method in which workers remove snow with a snow blower (50 nm before orbit) and then melt the snow using heat from a cantera or hot air ■ A method in which snow is melted using a hot air blowing snow melting device ■ An electric heat snow melting method Among the hot air blowing snow melting methods that have been used in recent years, there are two types: an outer-orbit type and an inner-orbit type. In either case, the hot air generated by the hot air generator
A duct sends it to the snow melting location. The duct at the snow melting position is installed inside or outside the track along the track, and hot air outlets are provided intermittently in the longitudinal direction toward the track. The hot air blown out from this outlet melts the snow brought into the track by the snow plow of the leading vehicle.
しかし、この方法は、熱風吹出しによる融雪のため、風
が吹くと熱風が散乱し、融雪能力が極端に低下し、軌道
車両の遅延トラブルの原因となる。However, in this method, snow is melted by blowing hot air, so when the wind blows, the hot air scatters, resulting in an extremely low snow melting ability and causing problems with delays in track vehicles.
また、覆板によって設けられた吹出し口から吹出す熱風
は、吹出し口の位置によって異なり、融雪むらを生じる
。さらに熱風吹出し口が軌道に向いているため、軌道間
に積雪した雪や軌道車両による持込み雪の融雪には時間
がかかる。Further, the hot air blown out from the outlet provided by the cover plate varies depending on the position of the outlet, causing uneven snow melting. Furthermore, because the hot air outlet faces the tracks, it takes time to melt the snow that has accumulated between the tracks and the snow brought in by the track vehicles.
一方、電熱式融雪方法は、軌道と軌道とを支持している
枕木と軌道との間にヒートプレートを設置しており、電
気によって発熱し、融雪効果を発揮する。電気配線は、
軌道にそって配置された配管内を通り、各ヒートプレー
トに接続されている。On the other hand, in the electrothermal snow melting method, a heat plate is installed between the track and the railroad ties that support the track, and generates heat using electricity to produce a snow melting effect. The electrical wiring is
It passes through pipes arranged along the track and is connected to each heat plate.
現在、軌道切替部での融雪は、熱風吹出し式と電熱式と
の併用で実施されている例が多い。Currently, snow melting at track switching sections is often carried out using a combination of hot air blowing and electric heating.
この電熱式融雪方法は、電気配線が断線しやすく故障の
大きな原因となっている。また、ランニングコストも高
い。This electric heating snow melting method is prone to electrical wiring breakage, which is a major cause of breakdowns. Additionally, running costs are high.
その他の融雪方法として、軌道にそって温流水パイプラ
インを設け、軌道の下部を横切って所定間隔でヒートパ
イプを設け、ヒートパイプの凝縮部を温流水パイプライ
ンに接続する方法がある（特公昭５８−５１５６１号公
報）。Another snow melting method is to install a heated water pipeline along the track, install heat pipes at predetermined intervals across the bottom of the track, and connect the condensing part of the heat pipe to the heated water pipeline. 58-51561).
しかし、この方法はビートパイプの設置に費用と手間が
かかること、パイプラインに水を用いているので保守・
点検に手間がかかるなどの問題がある。However, this method is expensive and time-consuming to install the beet pipe, and since water is used in the pipeline, it requires maintenance and maintenance.
There are problems such as the time required for inspection.
温水散水式の場合は、 ■ ノズルの目詰りによる散水量のアンバランス。In the case of hot water sprinkler type, ■ Unbalanced watering amount due to nozzle clogging.
■ 止水にともなう保守点検の手間がかかる。■ Maintenance and inspection due to water stoppage is time consuming.
■ 散水後の後処理（凍結等）等の問題がある。■ There are problems with post-treatment (freezing, etc.) after watering.
（ハ）発明が解決しようとした課題
本発明が解決しようとした課題は、敷設費用、保守・点
検費用が廉価で信頼性のある融雪装置を得ることにある
。(c) Problems to be Solved by the Invention The problem to be solved by the present invention is to obtain a reliable snow melting device with low installation costs, low maintenance and inspection costs.
（ニ）課題を解決するための手段
本発明の軌道切替部付近の融雪装置は、軌道敷内の軌道
切替部の上流側付近において、熱源ダクトを軌道を横断
して埋設し、該熱源ダクトに熱源機より温風を供給し、
複数のヒートパイプを軌道にそって平行に所定の間隔を
あけて配置し、前記ヒートパイプの受熱部を前記ダクト
内に挿入し、かつ、該ヒートパイプの放熱部を軌道にそ
って平行に配置することによって、車両が軌道敷内の雪
を軌道切替部まで持ち込むことを防止して、上記課題を
解決している。(d) Means for Solving the Problems The snow melting device near the track switching part of the present invention has a heat source duct buried across the track near the upstream side of the track switching part in the track bed, and Supplying hot air from a heat source machine,
A plurality of heat pipes are arranged parallel to each other at predetermined intervals along a track, heat receiving parts of the heat pipes are inserted into the duct, and heat dissipating parts of the heat pipes are arranged parallel to each other along the track. By doing so, the above-mentioned problem is solved by preventing the vehicle from carrying snow in the track bed to the track switching section.
本発明の装置は、さらに、前記熱源ダクトの先端にＬ字
形の排気ダクトを接続し、該り字形ダクトの長辺を軌道
に平行に配置し、該り字形ダクトの短辺を前記軌道切替
部に向けて温風を吹き付けることによって、軌道切替部
の融雪を行って、上記課題を解決している。The device of the present invention further includes an L-shaped exhaust duct connected to the tip of the heat source duct, a long side of the L-shaped duct being arranged parallel to the track, and a short side of the L-shaped duct being connected to the track switching section. The above problem is solved by blowing hot air towards the track switching section to melt snow.
（ホ）実施例
第１図から第５図までを参照して、本発明の融雪装置の
実施例について説明する。(E) Embodiment An embodiment of the snow melting device of the present invention will be described with reference to FIGS. 1 to 5.
本発明の融雪装置は、ヒートパイプ１、熱源機２、熱源
ダクト３、さらに必要に応じて排気ダクト８からできて
いる。The snow melting device of the present invention is made up of a heat pipe 1, a heat source device 2, a heat source duct 3, and, if necessary, an exhaust duct 8.
本発明の融雪装置は、軌道敷内の軌道切替部７の上流側
付近において、熱源ダクト３を軌道５を横断して埋設し
、熱源ダクト３に熱源機２より温風を供給する。複数の
ヒートパイプ１を熱源ダクト３を中心にして上流側およ
び下流側に軌道５にそって平行に所定の間隔をあけて配
置する。ヒートパイプ１の受熱部１１を熱源ダクト３内
に挿入し、かつ、ヒートパイプ１の放熱部１２を軌道５
にそって平行に配置する。In the snow melting device of the present invention, a heat source duct 3 is buried across the track 5 near the upstream side of the track switching section 7 in the track bed, and warm air is supplied from the heat source device 2 to the heat source duct 3. A plurality of heat pipes 1 are arranged parallel to a track 5 on the upstream and downstream sides of a heat source duct 3 at predetermined intervals. The heat receiving part 11 of the heat pipe 1 is inserted into the heat source duct 3, and the heat dissipating part 12 of the heat pipe 1 is inserted into the track 5.
Place them parallel to each other.
本発明の融雪装置は、さらに、熱源ダクト３の先端に５
字形の排気ダクト８を接続する。Ｌ字形ダクト８の長辺
８を軌道５に平行に配置し、Ｌ字形ダクト８の短辺８２
を軌道切替部７の付近で軌道５を含む平面内で軌道５に
垂直に配置する。短辺８２の排出口８２１（第１図）か
ら軌道切替部７に向けて温風を吹き付ける。The snow melting device of the present invention further includes a
A letter-shaped exhaust duct 8 is connected. The long side 8 of the L-shaped duct 8 is arranged parallel to the track 5, and the short side 82 of the L-shaped duct 8 is arranged parallel to the track 5.
is arranged perpendicularly to the track 5 in a plane including the track 5 in the vicinity of the track switching unit 7. Hot air is blown toward the track switching section 7 from the outlet 821 (FIG. 1) on the short side 82.
ヒートパイプ１の作動原理を第４図および第５図を参照
して説明する。ヒートパイプ１は、受熱部１１と放熱部
１２とで槽底されている。受熱部１１には作動液１１１
が封入されている。この作動液１１１が比較的低温でも
沸騰蒸発するように内部は脱気状態となっている。The operating principle of the heat pipe 1 will be explained with reference to FIGS. 4 and 5. The heat pipe 1 has a heat receiving section 11 and a heat dissipating section 12 at the bottom. A working fluid 111 is provided in the heat receiving part 11.
is included. The interior is degassed so that the working fluid 111 boils and evaporates even at a relatively low temperature.
熱源機２（第１図）により発生させた温風や蒸気等は、
熱源ダクト３を通り、この熱源ダクト３に差し込まれて
いるし−トバイプ１の受熱部１１を暖めた後、排気口４
（第１図〉より外部へ放出される。The hot air, steam, etc. generated by the heat source device 2 (Fig. 1) are
After passing through the heat source duct 3 and warming the heat receiving part 11 of the pipe 1 inserted into the heat source duct 3, the exhaust port 4
It is released to the outside from (Fig. 1).
ヒートパイプ１の受熱部１１が暖められると、受熱部１
１に封入されている作動液１１１は、蒸発して蒸気１１
２となりヒートパイプ１内上部を流れて放熱部１２に至
る。このとき、蒸気はヒートパイプ１を暖めることにな
り、蒸気の持っている熱は奪われ、凝縮して液状となる
。ヒートパイプ１は、放熱部１２の先端が高くなるよう
に若干の勾配を設けており、凝縮して液状となった作動
液１１１は、ヒートパイプｌの内面の下部を自然流下し
て液溜り部としての受熱部１１に戻る。When the heat receiving part 11 of the heat pipe 1 is heated, the heat receiving part 1
The working fluid 111 sealed in 1 evaporates into steam 11
2, which flows through the upper part of the heat pipe 1 and reaches the heat radiation section 12. At this time, the steam warms the heat pipe 1, the heat of the steam is taken away, and the steam condenses and becomes liquid. The heat pipe 1 has a slight slope so that the tip of the heat dissipation part 12 is higher, and the condensed and liquid working fluid 111 naturally flows down the lower part of the inner surface of the heat pipe 1 to a liquid pool. Returning to the heat receiving section 11 as shown in FIG.
したがって、軌道５（第１図）内にこのヒートパイプ１
を敷設しておくと、雷６は、ヒートパイプ１の周囲に降
り注ぐことになるが、ヒートパイプ１が暖いため、順次
融雪され積ることがない。Therefore, within the orbit 5 (FIG. 1) this heat pipe 1
If the heat pipe 1 is installed, the lightning 6 will fall around the heat pipe 1, but since the heat pipe 1 is warm, the snow will gradually melt and will not accumulate.
また、軌道車両によって持ち込まれる雪６も同様に融雪
される。Further, snow 6 brought in by the rail vehicle is similarly melted.
軌道切替部７（第２図）におけるヒートパイプ・１の敷
設は、ヒートパイプ１と並行に排気ダクト８（第２図）
も敷設し、排気口８１を軌道切替部７に向ける。このた
め、排気ダクト８も排気の熱により暖められ、ヒートパ
イプ１と同様な効果が得られるとともに、排気ダクト８
の短辺８２の排出口８２１から排出される排熱が軌道切
替部７に吹きつけるので、軌道切替部７に降り注ぐ雪も
融雪される。The heat pipe 1 in the track switching section 7 (Fig. 2) is laid in parallel with the heat pipe 1 in the exhaust duct 8 (Fig. 2).
Also, the exhaust port 81 is directed toward the track switching section 7. Therefore, the exhaust duct 8 is also warmed by the heat of the exhaust gas, and the same effect as the heat pipe 1 is obtained, and the exhaust duct 8
Since the exhaust heat discharged from the discharge port 821 on the short side 82 is blown onto the track switching section 7, the snow that falls on the track switching section 7 is also melted.
第１図および第２図は、角形ヒートパイプを軌道切替部
７の上流側付近（約１０ｍの範囲）に設置した本発明の
融雪装置を示す。1 and 2 show a snow melting device of the present invention in which a rectangular heat pipe is installed near the upstream side of the track switching section 7 (in a range of about 10 m).
軌道５の外に設置された熱源機２により発生した熱風（
８０〜１５０℃）は、断熱材３１によって保温された熱
源ダクト３内を流れる。このダクト３は、軌道５を横断
する必要があるため、軌道５を支持している枕木９間の
道床９１を開削し、Ｕ字消等で槽底されたビット１０内
に敷設されている。ヒートパイプ１の受熱部１１は、ビ
ット１０内に位置するダクト３内に挿入されている。Hot air (
80 to 150°C) flows through the heat source duct 3 which is kept warm by the heat insulating material 31. Since this duct 3 needs to cross the track 5, the trackbed 91 between the sleepers 9 supporting the track 5 is excavated, and the duct 3 is laid in a bit 10 which is bottomed with a U-shape or the like. The heat receiving part 11 of the heat pipe 1 is inserted into the duct 3 located inside the bit 10.
放熱部１２は、先端が上向きになるように０．５〜２．
０％程度の勾配を持ちながら、道床９１にある枕木９上
を軌道５にそって敷設されている。軌道５間には、この
ようなし−トバイプ１が複数本設置される。The heat dissipation part 12 has a diameter of 0.5 to 2.0 mm so that the tip faces upward.
It is laid along the track 5 on sleepers 9 on the trackbed 91, with a slope of about 0%. A plurality of such pipes 1 are installed between the tracks 5.
ヒートパイプ１の受熱部１１を暖めた熱風は、排気ダク
ト８を通過して外気へ放出される。この時、軌道切替部
７に積る雪を融雪する場合には、排気ダクト８は勾配を
必要としない、排出口８２１は軌道切替部７に向かって
複数個開口されている。排気の熱によって軌道切替部７
に降雪する雪を融かし、ポイントの切替を容易にする。The hot air that has warmed the heat receiving part 11 of the heat pipe 1 passes through the exhaust duct 8 and is discharged to the outside air. At this time, when melting snow accumulated on the track switching section 7, the exhaust duct 8 does not require a slope, and a plurality of exhaust ports 821 are opened toward the track switching section 7. Trajectory switching section 7 due to exhaust heat
It melts the snow that falls on the ground, making it easier to switch points.
第１表は、従来方式の熱風式融雪装置と本発明のヒート
パイプ式の融雪装置との運転時間および熱風発生のため
の灯油消費量を比較した結果を示す、第１表から明らか
に、本発明の装置が優位であることがわかる。Table 1 shows the results of comparing the operating time and kerosene consumption for generating hot air between the conventional hot air snow melting device and the heat pipe snow melting device of the present invention. It can be seen that the invented device is superior.
第 １ 表 （Ｈ−Ｐ ：ヒートパイプ） 熱源機は、高運転と低運転とがある。No. 1 table (HP: heat pipe) The heat source machine has high operation and low operation.
従来の熱風式は高運転で熱風等を供給するが、本ヒート
パイプ方式では低運転で従来方式と同等の融雪能力を有
することから、灯油消費量を大幅に削減することができ
る。Conventional hot air systems operate at high speeds to supply hot air, but this heat pipe system operates at low speeds and has the same snow melting capacity as conventional systems, making it possible to significantly reduce kerosene consumption.
（へ〉効果 本発明によれば、下記の効果が得られる。(to) Effect According to the present invention, the following effects can be obtained.
■ ヒートパイプ自体が融雪のための熱源となるため、
温風式と比較しても熱効率が高い。■ The heat pipe itself serves as the heat source for snow melting, so
Thermal efficiency is higher than that of hot air type.
■ 既設の熱源機をそのまま使用できるため、イニシャ
ルコストが安い。■ Initial cost is low because existing heat source equipment can be used as is.
■ 軌道敷内と軌道切替部とを同時に融雪でき、軌道切
替部が容易に作動することができ、軌道車両の安全走行
が確保される。■ Snow can be melted on the track bed and at the track switching section at the same time, the track switching section can be easily operated, and safe running of track vehicles is ensured.
■ 水を用いないので保守・点検が容易である。■ Maintenance and inspection are easy because no water is used.
第１図は本発明の融雪装置を設置した軌道敷内の軌道切
替部付近の斜視図、第２図は第１図の平面図、第３図は
第２図の■−■線からみた部分拡大断面図、第４図はヒ
ートパイプの側面図、第５図は第４図のｖ−ｖ線からみ
た横断面図。
１：ヒートパイプ ２：熱源機
３：熱源ダクト ４：排気口
５：軌道 ６：雪
７：軌道切替部 ８：排気ダクト
９：枕木 ＬＯ：Ｕ字溝
１１：受熱部 １２：放熱部
１３：フィンFig. 1 is a perspective view of the vicinity of the track switching section in the track bed where the snow melting device of the present invention is installed, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a section viewed from the line ■-■ in Fig. 2. 4 is a side view of the heat pipe, and FIG. 5 is a cross-sectional view taken along line v-v in FIG. 4. 1: Heat pipe 2: Heat source device 3: Heat source duct 4: Exhaust port 5: Track 6: Snow 7: Track switching section 8: Exhaust duct 9: Sleeper LO: U-shaped groove 11: Heat receiving section 12: Heat radiating section 13: Fin
Claims (1)
ダクトを軌道を横断して埋設し、該熱源ダクトに熱源機
より温風を供給し、複数のヒートパイプを軌道にそって
平行に所定の間隔をあけて配置し、前記ヒートパイプの
受熱部を前記ダクト内に挿入し、かつ、該ヒートパイプ
の放熱部を軌道にそって平行に配置することを特徴とし
た軌道敷内の軌道切替部付近の融雪装置。 ２、前記熱源ダクトの先端にＬ字形の排気ダクトを接続
し、該Ｌ字形ダクトの長辺を軌道に平行に配置し、該Ｌ
字形ダクトの短辺を前記軌道切替部に向けて温風を吹き
付けることを特徴とした請求項１記載の装置。[Claims] 1. A heat source duct is buried across the track near the upstream side of the track switching part in the track bed, and hot air is supplied from a heat source device to the heat source duct to connect a plurality of heat pipes. The heat pipes are arranged parallel to each other at predetermined intervals along the track, the heat receiving part of the heat pipe is inserted into the duct, and the heat radiating part of the heat pipe is arranged parallel to the track. Snow melting equipment near the track switching section on the track bed. 2. Connect an L-shaped exhaust duct to the tip of the heat source duct, arrange the long side of the L-shaped duct parallel to the track, and
2. The apparatus according to claim 1, wherein warm air is blown toward the short side of the letter-shaped duct toward the track switching section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1324458A JPH03183806A (en) | 1989-12-14 | 1989-12-14 | Device to melt snow around switching point in track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1324458A JPH03183806A (en) | 1989-12-14 | 1989-12-14 | Device to melt snow around switching point in track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03183806A true JPH03183806A (en) | 1991-08-09 |
Family
ID=18166038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1324458A Pending JPH03183806A (en) | 1989-12-14 | 1989-12-14 | Device to melt snow around switching point in track |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03183806A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05179625A (en) * | 1991-12-26 | 1993-07-20 | East Japan Railway Co | Snow melting device |
| JPH07113201A (en) * | 1993-10-18 | 1995-05-02 | Mitsubishi Electric Corp | Apparatus for melting snow |
| JP2019015036A (en) * | 2017-07-04 | 2019-01-31 | 東日本旅客鉄道株式会社 | Warm air type snowmelt device insulated duct and warm air type snowmelt device |
| JP2019173325A (en) * | 2018-03-27 | 2019-10-10 | ナブテスコ株式会社 | Snow removal system control device, jet control device, and heating control device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS507601U (en) * | 1973-05-17 | 1975-01-27 | ||
| JPS62174403A (en) * | 1985-10-29 | 1987-07-31 | 住友金属工業株式会社 | Apparatus for preventing snow melting and freezing on road surface |
| JPH01207503A (en) * | 1988-02-16 | 1989-08-21 | Sumitomo Metal Ind Ltd | Prevention of ground surface freezing |
-
1989
- 1989-12-14 JP JP1324458A patent/JPH03183806A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS507601U (en) * | 1973-05-17 | 1975-01-27 | ||
| JPS62174403A (en) * | 1985-10-29 | 1987-07-31 | 住友金属工業株式会社 | Apparatus for preventing snow melting and freezing on road surface |
| JPH01207503A (en) * | 1988-02-16 | 1989-08-21 | Sumitomo Metal Ind Ltd | Prevention of ground surface freezing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05179625A (en) * | 1991-12-26 | 1993-07-20 | East Japan Railway Co | Snow melting device |
| JPH07113201A (en) * | 1993-10-18 | 1995-05-02 | Mitsubishi Electric Corp | Apparatus for melting snow |
| JP2019015036A (en) * | 2017-07-04 | 2019-01-31 | 東日本旅客鉄道株式会社 | Warm air type snowmelt device insulated duct and warm air type snowmelt device |
| JP2019173325A (en) * | 2018-03-27 | 2019-10-10 | ナブテスコ株式会社 | Snow removal system control device, jet control device, and heating control device |
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