JPH0637764B2 - Snow melting equipment in combined heat and power supply system - Google Patents
Snow melting equipment in combined heat and power supply systemInfo
- Publication number
- JPH0637764B2 JPH0637764B2 JP63096077A JP9607788A JPH0637764B2 JP H0637764 B2 JPH0637764 B2 JP H0637764B2 JP 63096077 A JP63096077 A JP 63096077A JP 9607788 A JP9607788 A JP 9607788A JP H0637764 B2 JPH0637764 B2 JP H0637764B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- air cooler
- water
- pipe
- internal combustion
- 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.)
- Expired - Lifetime
Links
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- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Road Paving Structures (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、熱電併給システム（コージェネレーションシ
ステム）を採用しているホテルや工場等に実施して好適
な融雪設備に関する。Description: [Industrial field of application] The present invention relates to a snow melting facility suitable for use in a hotel, a factory, or the like that employs a combined heat and power supply system (cogeneration system).
従来、融雪設備として、水をノズルから路面等に噴出し
て雪を融かすもの、路面等にヒートパイプを埋設してこ
れを下地水等で温めて雪を融かすもの（実公昭５８−３
８００５号）、あるいは、温水ボイラで得られた温水を
路面等に埋設された通水管に流して雪を融かすものが知
られている。Conventionally, as a snow melting facility, water is jetted from a nozzle onto a road surface or the like to melt the snow, or a heat pipe is embedded on the road surface or the like to heat it with ground water or the like to melt the snow.
No. 8005), or hot water obtained by a hot water boiler is flown into a water pipe buried in a road surface or the like to melt snow.
前者が散水方式、及びヒートパイプ使用の融雪設備は、
水は多量に消費するため、地盤沈下等の問題を有しない
湧水等の水源を確保する必要があり、水量の豊富な水源
がないと実施できないという問題点がある。The former is the watering method and the snow melting equipment using heat pipe,
Since a large amount of water is consumed, it is necessary to secure a water source such as spring water that does not cause problems such as ground subsidence, and there is a problem that it cannot be implemented without a water source with abundant water.
また後者の融雪設備は無散水方式であり、水を循環使用
するため、散水方式のもののような問題はないが、ボイ
ラで温水を得るため、稼働費が高くつくという問題点が
ある。In addition, the latter snow melting equipment is a non-sprinkling system, and since water is circulated and used, there is no problem like a sprinkling system, but there is a problem that operating costs are high because hot water is obtained by the boiler.
本発明は、水を循環使用することができる上、稼働費が
低く経済的な融雪設備を提供することを目的とする。It is an object of the present invention to provide an economical snow melting facility that can reuse water and has a low operating cost.
上記の目的を達成するため、本発明は、過給機のエアー
クーラと冷却用ジャケットを備えた内燃機関に発電機が
連結され、上記内燃機関の排気系に該内燃機関の排気ガ
スの熱を利用する熱交換器が連絡された熱電併給システ
ムにおいて、上記内燃機関のエアークーラに、該エアー
クーラの冷却に働いて温度を上昇せしめられた液体の熱
で雪を融かし、かつ、上記液体をエアークーラに循環さ
せてエアークーラを冷却する融雪コイルが付設され、ま
た、上記内燃機関のジャケットに冷却液を循環する配管
に、ジャケットに入る冷却液の熱をエアークーラから出
た液体に与える熱交換器が設けられた構成とした。In order to achieve the above-mentioned object, the present invention is a generator connected to an internal combustion engine equipped with an air cooler and a cooling jacket of a supercharger, and heats exhaust gas of the internal combustion engine to an exhaust system of the internal combustion engine. In a combined heat and power supply system in which a heat exchanger to be used is connected, the air cooler of the internal combustion engine melts snow by heat of a liquid whose temperature is increased by working to cool the air cooler, and the liquid Is equipped with a snow-melting coil for cooling the air cooler by circulating it to the air cooler, and the heat of the coolant entering the jacket is applied to the liquid coming out of the air cooler in the pipe for circulating the coolant in the jacket of the internal combustion engine. The configuration was such that a heat exchanger was provided.
内燃機関を作動させると、発電機が回転して発電すると
ともに、熱交換器が作用して排気ガスの熱を奪い、その
熱で飲料水等を加温したり、暖房等を行う。上記とは別
に、内燃機関の過給機のエアークーラの冷却に働いて温
度を上昇せしめられた液体は、内燃機関の冷却用ジャケ
ットに入る冷却液の熱を熱交換器で与えられて更に温度
を高め、融雪コイルを加温する。融雪コイルの加温で雪
が融かされ、また融雪に関与して温度を低められた液体
はエアークーラに戻されてこれを冷却する。When the internal combustion engine is operated, the generator rotates to generate electric power, and the heat exchanger acts to remove heat from the exhaust gas, which heats drinking water or the like and performs heating or the like. Separately from the above, the liquid whose temperature has risen by cooling the air cooler of the supercharger of the internal combustion engine is given the heat of the cooling liquid entering the cooling jacket of the internal combustion engine by the heat exchanger to further increase the temperature. And heat the snow melting coil. The snow is melted by heating the snow melting coil, and the liquid whose temperature is lowered due to the snow melting is returned to the air cooler to cool it.
第１図は本発明の一実施例を示すもので、図中符号１は
ディーゼルエンジン（内燃機関）である。ディーゼルエ
ンジン１には発電機２が直結され、またこのディーゼル
エンジン１の排気管３には、排ガス温水ボイラ（熱交換
器）４が接続されている。温水ボイラ４は、高温の排気
ガスの熱で水を加熱するものであり、配管５によって温
水槽６の高温部６ａに直接接続されるとともに、配管７
によってディーゼルエンジン１のジャケット１ａと、熱
交換器８、及びポンプ９を介して温水槽６の低温部６ｂ
に接続されている。また、上記温水槽６の高温部６ａと
低温部６ｂには、配管１０，１１、１２，１３により給
湯槽１４と暖房用熱交換器１５が接続されている。配管
１０，１２にはポンプ１６，１７が設けられている。FIG. 1 shows an embodiment of the present invention, in which reference numeral 1 is a diesel engine (internal combustion engine). A generator 2 is directly connected to the diesel engine 1, and an exhaust gas hot water boiler (heat exchanger) 4 is connected to an exhaust pipe 3 of the diesel engine 1. The hot water boiler 4 heats water with the heat of high-temperature exhaust gas, and is directly connected to the high temperature portion 6a of the hot water tank 6 by the pipe 5 and also connected to the pipe 7
Through the jacket 1a of the diesel engine 1, the heat exchanger 8 and the pump 9, the low temperature part 6b of the hot water tank 6
It is connected to the. A hot water supply tank 14 and a heating heat exchanger 15 are connected to the high temperature portion 6a and the low temperature portion 6b of the hot water tank 6 through pipes 10, 11, 12, and 13. Pumps 16 and 17 are provided in the pipes 10 and 12, respectively.
また、上記ディーゼルエンジン１のエアークーラ１ｂに
は、配管１８，１９によってクーリングタワー２１が接
続されている。配管１８にはポンプ２２が設けられ、ま
た配管１９は、バイパス管２３によって前記熱交換器８
に連絡されている。上記配管１８のクーリングタワー２
１とポンプ２２の間、及び配管１９のクーリングタワー
２１とバイパス管２３との間からそれぞれ分岐管２４，
２５が分岐され、それらの分岐管２４，２５は循環水槽
２６に接続されている。またこの循環水槽２６には融雪
コイルを構成する通水管２７が接続されており、ポンプ
２８によって循環水槽２６内の温水を通水管２７に循環
させることができる構成とされている。なお、通水管２
７は、通常、道路等の融雪対象面に埋設される。A cooling tower 21 is connected to the air cooler 1b of the diesel engine 1 through pipes 18 and 19. A pump 22 is provided in the pipe 18, and the pipe 19 is connected to the heat exchanger 8 by a bypass pipe 23.
Have been contacted. Cooling tower 2 of the pipe 18
1 and the pump 22, and from the cooling tower 21 and the bypass pipe 23 of the pipe 19 to the branch pipe 24,
25 is branched, and those branch pipes 24, 25 are connected to a circulating water tank 26. Further, a water passage pipe 27 which constitutes a snow melting coil is connected to the circulating water tank 26, and the hot water in the circulating water tank 26 can be circulated through the water pipe 27 by a pump 28. In addition, water pipe 2
7 is usually buried in a snow melting target surface such as a road.
また、符号２９は温水ボイラであり、配管３１と、ポン
プ３３を備えた配管３２によって温水槽６の高温部６ａ
と低温部６ｂに連絡されている。３４は燃料の供給管、
３５は三方切換え弁である。Further, reference numeral 29 is a hot water boiler, and a high temperature part 6a of the hot water tank 6 is provided by a pipe 31 and a pipe 32 equipped with a pump 33.
And the low temperature section 6b. 34 is a fuel supply pipe
Reference numeral 35 is a three-way switching valve.
次に上記のように構成された本発明に係る熱電併給シス
テムにおける融雪設備の作用を説明する。Next, the operation of the snow melting facility in the combined heat and power supply system according to the present invention configured as described above will be described.
ディーゼルエンジン１の作動によって発電機２が回転し
て発電する。またディーゼルエンジン１から排気管３に
排出された排気ガスは排ガス温水ボイラ４を通り、温水
ボイラ４内の水を加熱して大気に放出される。排ガス温
水ボイラ４内で加熱された水は、ポンプ９の作動で温水
槽６の高温部６ａ内に送り込まれ、更にポンプ１６，１
７の作用によって配管１０，１２を通って給湯槽１４と
暖房用熱交換器１５に送られ、飲料水等の加熱と、暖房
に働いて配管１１，１３で温水槽６の低温部６ｂに戻さ
れる。温水槽６の低温部６ｂ内の水は配管７によりジャ
ケット１ａに送られてディーゼルエンジン１を冷却した
後、排ガス温水ボイラ１４に循環される。またエアーク
ーラ１ｂを冷却した水は、配管１９によってクーリング
タワー２１へ導かれ、大気へ放熱することになる。The operation of the diesel engine 1 causes the generator 2 to rotate and generate electricity. Exhaust gas discharged from the diesel engine 1 to the exhaust pipe 3 passes through the exhaust gas hot water boiler 4, heats the water in the hot water boiler 4, and is discharged to the atmosphere. The water heated in the exhaust gas hot water boiler 4 is fed into the high temperature portion 6a of the hot water tank 6 by the operation of the pump 9, and the pumps 16 and 1 are further supplied.
7 is sent to the hot water supply tank 14 and the heat exchanger 15 for heating through the pipes 10 and 12, and acts on the heating and heating of drinking water or the like and is returned to the low temperature portion 6b of the hot water tank 6 through the pipes 11 and 13. Be done. The water in the low temperature portion 6b of the hot water tank 6 is sent to the jacket 1a through the pipe 7 to cool the diesel engine 1 and then circulated to the exhaust gas hot water boiler 14. The water that has cooled the air cooler 1b is guided to the cooling tower 21 through the pipe 19 and radiates heat to the atmosphere.
融雪時においては、クーリングタワー２１を止め、コン
トロールバルブ（図示せず）の操作等で該クーリングタ
ワー２１に水が流れないようにして、ポンプ２２を作動
させる。これにより循環水槽２６の水は配管２４，１８
を通ってエアークーラ１ｂに送られ、過給機により圧縮
された空気を冷却して配管１９，２５を通じて循環水槽
２６に戻される。ポンプ２８は純水槽２６内の水を通水
管２７に循環させて該通水管２７が敷設された道路等の
雪を融かす。エアークーラ１ｂで過給空気の冷却に働い
た水を配管１９，２５で循環水槽２６に戻す際、必要が
あれば、三方切換え弁３５の操作により水の一部または
全部をバイパス管２３に送って熱交換器８を通し、温度
を高める。融雪の必要がない場合でも冬期には常にエア
ークーラ１ｂで過給空気の冷却に働いた水は該通水管２
７を流し道路等を加温させ、クーリングタワー２１のか
わりに道路等から大気へ放熱させる。ディーゼルエンジ
ン１の排気ガスの熱量だけでは給湯、及び暖（冷）房に
不足する場合は、温水ボイラ２９を作動させて温水槽６
内の水を加熱する。At the time of snow melting, the cooling tower 21 is stopped, water is prevented from flowing through the cooling tower 21 by operating a control valve (not shown), and the pump 22 is operated. As a result, the water in the circulating water tank 26 is supplied to the pipes 24, 18
The air that has been sent to the air cooler 1b through and is compressed by the supercharger is cooled and returned to the circulating water tank 26 through the pipes 19 and 25. The pump 28 circulates the water in the pure water tank 26 to the water pipe 27 to melt the snow on the road on which the water pipe 27 is laid. When returning the water that has worked to cool the supercharged air in the air cooler 1b to the circulating water tank 26 through the pipes 19 and 25, if necessary, a part or all of the water is sent to the bypass pipe 23 by operating the three-way switching valve 35. Through the heat exchanger 8 to raise the temperature. Even when there is no need for snow melting, the water that has worked to cool the supercharged air by the air cooler 1b is always used in the winter season.
7 is run to heat the road and the like, and instead of the cooling tower 21, heat is radiated from the road and the like to the atmosphere. When hot water supply and warm (cooling) are insufficient only with the heat quantity of the exhaust gas of the diesel engine 1, the hot water boiler 29 is operated to activate the hot water tank 6.
Heat the water inside.
第２図は本発明の他の実施例を示すもので、この場合
は、エアークーラー１ｂの配管１９に、潤滑湯用熱交換
器４０と、ジャケット水用熱交換器４１、融雪用熱交換
器４２、及び三方切換え弁４３が、エアークーラ１ｂか
らクーリングタワー２１に向けて上記の順で設けられる
とともに、クーリングタワー２１とポンプ２２の間の配
管１８と上記三方切換え弁４３との間にバイパス管４４
が設けられている。そして潤滑油用熱交換器４０には潤
滑油の冷却配管４５が、またジャケット水用熱交換器４
１にはポンプ４６を備えた冷却配管４７が、更にまた、
融雪用熱交換器４２にはポンプ４８を備えた融雪用配管
４９がそれぞれ連絡されている。ディーゼルエンジン１
の排気管３には、熱交換器５０が設けられ、該熱交換器
５０には配管５１を介して排ガス蒸気ボイラ５２が連絡
されている。５３は給水ポンプである。なお、他の構造
は第１図のものと同一であるので、同一の符号を付して
詳しい説明は省略する。FIG. 2 shows another embodiment of the present invention. In this case, the heat exchanger 40 for lubricating hot water, the heat exchanger 41 for jacket water, and the heat exchanger for snow melting are provided in the pipe 19 of the air cooler 1b. 42 and the three-way switching valve 43 are provided in this order from the air cooler 1b toward the cooling tower 21, and the bypass pipe 44 is provided between the pipe 18 between the cooling tower 21 and the pump 22 and the three-way switching valve 43.
Is provided. The lubricating oil heat exchanger 40 is provided with a lubricating oil cooling pipe 45, and the jacket water heat exchanger 4 is provided.
1, a cooling pipe 47 equipped with a pump 46,
The snow-melting heat exchanger 42 is connected to snow-melting pipes 49 each having a pump 48. Diesel engine 1
A heat exchanger 50 is provided in the exhaust pipe 3, and an exhaust gas steam boiler 52 is connected to the heat exchanger 50 via a pipe 51. 53 is a water supply pump. Since the other structures are the same as those in FIG. 1, the same reference numerals are given and detailed description will be omitted.
この例の融雪設備においては、ディーゼルエンジン１の
作動で発電機２が回転して発電し、また排気ガスの熱
は、排ガス蒸気ボイラ５２に取り入れられ、給水ポンプ
５３によって供給される水を蒸気にする。In the snow melting equipment of this example, the generator 2 is rotated by the operation of the diesel engine 1 to generate electricity, and the heat of the exhaust gas is taken into the exhaust gas steam boiler 52 and the water supplied by the water supply pump 53 is converted into steam. To do.
一方、融雪時においては、クーリングタワー２１が停止
するとともに、三方切換え弁４３の切換えによって配管
１８，１９がバイパス管４４を介して連絡する。したが
って、配管１８，１９、及びバイパス管４４内の水は、
ポンプ２２の作動でエアークーラ１ｂ，潤滑油用熱交換
器４０、及びジャケット水用熱交換器４１を通り、過給
空気と潤滑油、及びディーゼルエンジン１の冷却に働い
て温度を高められた後、融雪用熱交換器４２でその熱を
循環水槽２６の水に与えて冷却され、再びエアークーラ
１ｂに循環される。On the other hand, at the time of snow melting, the cooling tower 21 is stopped, and the pipes 18 and 19 are connected via the bypass pipe 44 by switching the three-way switching valve 43. Therefore, the water in the pipes 18 and 19 and the bypass pipe 44 is
After the temperature of the pump 22 is raised by the operation of the pump 22, it passes through the air cooler 1b, the heat exchanger 40 for lubricating oil, and the heat exchanger 41 for jacket water, works to cool the supercharged air and lubricating oil, and the diesel engine 1. The heat is supplied to the water in the circulating water tank 26 by the heat exchanger 42 for snow melting to be cooled, and is circulated again in the air cooler 1b.
このようにして加温された融雪水槽２６内の水は、ポン
プ２８の作用によって通水管２７に循環され、雪を融か
す。融雪の必要がない場合でも、冬期には通水管２７に
上記のようにして加温された水を通水し道路等を加温
し、クーリングタワー２１のかわりに道路等の表面から
大気へ放熱させる。The water in the snow melting water tank 26 heated in this way is circulated through the water pipe 27 by the action of the pump 28 to melt the snow. Even when there is no need to melt snow, in the winter, the water that has been heated as described above is passed through the water pipe 27 to heat roads and the like, and instead of the cooling tower 21, heat is radiated from the surface of the road and the like to the atmosphere. .
なお、融雪コイルにヒートパイプを使用することもでき
る。A heat pipe may be used for the snow melting coil.
［発明の効果］ 以上説明したように、本発明な、過給機のエアークーラ
と冷却用ジャケットを備えた内燃機関に発電機が連結さ
れ、上記内燃機関の排気系に該内燃機関の排気ガスの熱
を利用する熱交換器が連絡された熱電併給システムにお
いて、上記内燃機関のエアークーラに、該エアークーラ
の冷却に働いて温度を上昇せしめられた液体の熱で雪を
融かし、かつ、上記液体をエアークーラに循環させてエ
アークーラを冷却する融雪コイルが付設され、また、上
記内燃機関のジャケットに冷却液を循環する配管に、ジ
ャケットに入る冷却液の熱をエアークーラから出た液体
に与える熱交換器が設けられた構成とされ、内燃機関の
廃熱を利用して雪をとかし、また雪を融かすことによっ
て冷却された水を内燃機関の冷却に用いるものであるか
ら、無駄がないとともに稼働費も低く経済的である。ま
た無散水方式で水を循環使用するものであるから、地盤
沈下の公害を起こすことがない。更にまた、エアークー
ラの冷却に働いて温度を上昇せしめられた液体に、冷却
用ジャケットに入る冷却液の熱を熱交換器で与え、その
温度を一層高めて融雪コイルを働かせるものであるか
ら、効率良く雪を融かし、また冷却用ジャケットを効率
的に冷却することができる。また、冬期には、エンジン
を冷却する必要からクーリングタワーによって大気へ放
熱させている熱で、常に融雪を必要とする道路等を加温
し、その表面から大気へ熱を放熱させながら道路等の表
面温度を氷点下以上の温度に保持することが出来るため
突然の降雪に対して即時融雪機能を発揮することができ
る。また路面の温度保持に燃料が不要である。[Effects of the Invention] As described above, a generator is connected to an internal combustion engine having an air cooler and a cooling jacket of a supercharger according to the present invention, and an exhaust gas of the internal combustion engine is connected to an exhaust system of the internal combustion engine. In a combined heat and power system to which a heat exchanger utilizing the heat of is connected, in the air cooler of the internal combustion engine, the snow is melted by the heat of the liquid whose temperature is increased by working to cool the air cooler, and , A snow melting coil for cooling the air cooler by circulating the liquid in the air cooler is attached, and the heat of the cooling liquid entering the jacket is discharged from the air cooler to the pipe for circulating the cooling liquid in the jacket of the internal combustion engine. Since the heat exchanger for supplying the liquid is provided, the waste heat of the internal combustion engine is used to melt the snow, and the water cooled by melting the snow is used to cool the internal combustion engine. It is economical and economical with low operating costs. In addition, since water is circulated and used in a non-sprinkling system, it does not cause pollution due to ground subsidence. Furthermore, since the heat of the cooling liquid that enters the cooling jacket is given to the liquid whose temperature has been raised by working to cool the air cooler by the heat exchanger, the snow melting coil is activated by further increasing the temperature. The snow can be melted efficiently and the cooling jacket can be cooled efficiently. In winter, the heat that is released to the atmosphere by the cooling tower is required to cool the engine, so the roads that require snow melting are always warmed, and the heat is radiated from the surface to the surface of the road. Since the temperature can be maintained above the freezing point, the immediate snow melting function can be exerted against sudden snowfall. Further, no fuel is required to maintain the temperature of the road surface.
第１図は本発明の一実施例を示すのので本発明に係る融
雪設備の系統図、第２図は他の実施例を示す系統図であ
る。 １……ディーゼルエンジン（内燃機関）、２……発電
機、４，５２……熱交換器、２７……通水管（融雪コイ
ル）。FIG. 1 is a system diagram of a snow melting facility according to the present invention as it shows an embodiment of the present invention, and FIG. 2 is a system diagram showing another embodiment. 1 ... Diesel engine (internal combustion engine), 2 ... Generator, 4,52 ... Heat exchanger, 27 ... Water passage pipe (snow melting coil).
───────────────────────────────────────────────────── フロントページの続き (72)発明者 丸山 和之 神奈川県横浜市磯子区新磯子町27 株式会 社新潟鉄工所商品開発部内 (56)参考文献 実開 昭60−104678（ＪＰ，Ｕ) 実開 昭59−35422（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyuki Maruyama 27 Shinisogo-cho, Isogo-ku, Yokohama-shi, Kanagawa Stock Development Company, Niigata Iron Works (56) References Actual development Sho 59-35422 (JP, U)
Claims (1)
ャケット（１ａ）を備えた内燃機関（１）に発電機
（２）が連結され、上記内燃機関（１）の排気系に該内
燃機関（１）の排気ガスの熱を利用する熱交換器（４，
５２）が連絡された熱電併給システムにおいて、上記内
燃機関（１）のエアークーラ（１ｂ）に、該エアークー
ラ（１ｂ）の冷却に働いて温度を上昇せしめられた液体
の熱で雪を融かし、かつ、上記液体をエアークーラ（１
ｂ）に循環させてエアークーラ（１ｂ）を冷却する融雪
コイル（２７）が付設され、また、上記内燃機関（１）
のジャケット（１ａ）に冷却液を循環する配管（７，４
７）に、ジャケット（１ａ）に入る冷却液の熱をエアー
クーラ（１ｂ）から出た液体に与える熱交換器（８，４
１）が設けられたことを特徴とする熱電併給システムに
おける融雪設備。1. A generator (2) is connected to an internal combustion engine (1) equipped with an air cooler (1b) of a supercharger and a cooling jacket (1a), and the generator (2) is connected to an exhaust system of the internal combustion engine (1). A heat exchanger (4, which utilizes the heat of the exhaust gas of the internal combustion engine (1)
52) in the combined heat and power system, the air cooler (1b) of the internal combustion engine (1) melts snow by the heat of the liquid that is heated to increase the temperature of the air cooler (1b). In addition, the above liquid is added to the air cooler (1
A snow-melting coil (27) for circulating the air cooler (1b) to be circulated in b) is additionally provided, and the internal combustion engine (1) is also provided.
The piping (7, 4) for circulating the cooling liquid in the jacket (1a) of
In 7), a heat exchanger (8, 4) for giving the heat of the cooling liquid entering the jacket (1a) to the liquid discharged from the air cooler (1b).
1) is provided, the snow melting facility in the combined heat and power supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096077A JPH0637764B2 (en) | 1988-04-19 | 1988-04-19 | Snow melting equipment in combined heat and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096077A JPH0637764B2 (en) | 1988-04-19 | 1988-04-19 | Snow melting equipment in combined heat and power supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01268910A JPH01268910A (en) | 1989-10-26 |
| JPH0637764B2 true JPH0637764B2 (en) | 1994-05-18 |
Family
ID=14155338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63096077A Expired - Lifetime JPH0637764B2 (en) | 1988-04-19 | 1988-04-19 | Snow melting equipment in combined heat and power supply system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637764B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003020819A (en) * | 2001-07-11 | 2003-01-24 | Takasago Thermal Eng Co Ltd | Snow melting system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2500847B2 (en) * | 1993-11-30 | 1996-05-29 | 北海道瓦斯株式会社 | Road snow melting equipment |
| KR200276555Y1 (en) * | 2002-05-11 | 2002-05-24 | 김여일 | Korean Letter Input System Using 3 Contact Point Keybutton |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5935422U (en) * | 1982-08-30 | 1984-03-05 | セイレイ工業株式会社 | Snow removal/earth removal equipment |
| JPS60104678U (en) * | 1983-09-07 | 1985-07-17 | 矢崎総業株式会社 | Absorption chiller/heater for combined heat and power generation |
-
1988
- 1988-04-19 JP JP63096077A patent/JPH0637764B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003020819A (en) * | 2001-07-11 | 2003-01-24 | Takasago Thermal Eng Co Ltd | Snow melting system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01268910A (en) | 1989-10-26 |
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