JP2003328332A - Sprinkler type snow melting facility - Google Patents
Sprinkler type snow melting facilityInfo
- Publication number
- JP2003328332A JP2003328332A JP2002138664A JP2002138664A JP2003328332A JP 2003328332 A JP2003328332 A JP 2003328332A JP 2002138664 A JP2002138664 A JP 2002138664A JP 2002138664 A JP2002138664 A JP 2002138664A JP 2003328332 A JP2003328332 A JP 2003328332A
- Authority
- JP
- Japan
- Prior art keywords
- water
- heat
- sprinkling
- source
- snow melting
- 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
Landscapes
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Road Paving Structures (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、取水源から採取し
た水を散水手段に供給して融雪対象箇所に散水すること
で融雪対象箇所の融雪を行なう散水式融雪設備に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-sprinkling type snow melting facility for performing snow-melting at a snow-melting target portion by supplying water collected from a water intake source to a water-sprinking means to spray water to the snow-melting target portion.
【０００２】[0002]
【従来の技術】従来、散水式の融雪設備では、河川，湖
沼，井戸あるいは海などの取水源から採取した水をその
まま散水手段により融雪対象箇所に散水していた。2. Description of the Related Art Conventionally, in a sprinkler type snow melting facility, water collected from a water intake source such as a river, a lake, a well or the sea has been sprinkled as it is to a snow melting target site by a sprinkling means.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来の散水式
融雪設備は、所要の融雪能力を得るのに相当量の散水量
を要し、この為、環境保全や地盤沈下防止などの理由か
ら取水量が制限される条件下では、設備規模が制限され
て融雪の実施可能面積が制限されてしまい、また、その
ことで設備の実用価値も大きく低減してしまう問題があ
った。However, the conventional water sprinkling type snow melting equipment requires a considerable amount of water sprinkling to obtain the required snow melting capacity. Therefore, water is taken in for reasons such as environmental protection and ground subsidence prevention. Under the condition that the amount is limited, there is a problem that the scale of the facility is limited and the practicable area of snow melting is limited, and the practical value of the facility is greatly reduced.
【０００４】この実情に鑑み、本発明の主たる課題は、
合理的な改良により上記問題を効果的に解消する点にあ
る。In view of this situation, the main problem of the present invention is to
The reason is that the above problems can be effectively solved by rational improvement.
【０００５】[0005]
【課題を解決するための手段】〔１〕請求項１に係る発
明は散水式融雪設備に係り、その特徴は、取水源から採
取した水を散水手段に供給して融雪対象箇所に散水する
ことで融雪対象箇所の融雪を行なう構成において、前記
散水手段に対する前記取水源からの供給水をヒートポン
プにより加熱する構成にしてある点にある。[1] The invention according to claim 1 relates to a water-sprinkling type snow melting facility, which is characterized in that the water collected from an intake source is supplied to a water-sprinking means to spray water to a snow-melting target location. In the configuration for performing the snow melting at the target snow melting point, the configuration is such that the water supplied from the water intake source to the water sprinkling means is heated by a heat pump.
【０００６】つまり、この構成によれば、取水源からの
採取水をそのまま融雪対象箇所に散水して融雪を行なう
のに比べ、ヒートポンプによる加熱分だけ融雪を促進で
きることから、その促進分だけ単位面積当たりの融雪に
要する散水量を少なくすることができて、その分、取水
源からの必要取水量を少なくすることができ、これによ
り、取水量が制限される条件下においても、その取水量
制限による設備規模の制約を受け難い散水式融雪設備に
することができて、散水式融雪の実施可能面積を効果的
に拡大することができ、また、そのことにより、広域融
雪や道路における長区間融雪が可能になる等の点で融雪
設備の実用価値も効果的に高めることができる。That is, according to this construction, compared with the case where the water collected from the water intake source is sprayed as it is to the snow melting target site to perform the snow melting, the snow melting can be promoted by the amount heated by the heat pump. It is possible to reduce the amount of water required for snow melting per hit, and correspondingly reduce the required amount of water intake from the water intake source, which limits the amount of water intake even under conditions where the amount of water intake is limited. It is possible to make a water-sprinkling type snow melting facility that is not easily restricted by the equipment scale, and to effectively expand the area where the water-spraying type snow melting can be implemented. Therefore, the practical value of the snow melting facility can be effectively increased.
【０００７】ちなみに、散水手段に対する取水源からの
供給水を加熱するのに、ヒートポンプに代えボイラなど
の燃焼式加熱装置を用いることも考えられるが、加熱し
た水を散水することで融雪を促進するにしても、融解さ
せる対象が雪であって散水用水に要求される温度はそれ
ほど高くないことから、また、寒冷な融雪対象箇所に必
要以上に高温の水を散水すると大量の湯気が発生するな
どの不都合を生じることもあることから、燃焼式加熱装
置を用いた場合、加熱の目標とする水温（換言すれば加
熱後の水温）と燃焼温度との温度差が極めて大きなもの
になって、有効エネルギの利用効率が低いものになって
しまう。Incidentally, a combustion type heating device such as a boiler may be used in place of the heat pump to heat the water supplied from the water intake source to the water sprinkling means, but the melting of water is promoted by sprinkling the heated water. However, because the object to be melted is snow and the temperature required for sprinkling water is not so high, and if water that is hotter than necessary is sprinkled on the cold snow melting target area, a large amount of steam will be generated. When using a combustion type heating device, the temperature difference between the target water temperature for heating (in other words, the water temperature after heating) and the combustion temperature becomes extremely large, which is effective. The utilization efficiency of energy becomes low.
【０００８】この点、請求項１に係る発明の上記構成に
よれば、ヒートポンプにおける凝縮器の発生温度が燃焼
式加熱装置の燃焼温度に比べ遥かに低温で、加熱の目標
とする水温と凝縮器発生温度との温度差が小さなもので
済むことから、有効エネルギの利用効率を高く確保する
ことができ、また、取水源からの採取水の温度が低温で
その低温水を放熱源とする凝縮器での冷媒凝縮が効率的
に進むことから、ヒートポンプの成績係数も高く確保す
ることができ、これらのことから、燃焼式加熱装置を用
いる場合に比べ、エネルギ効率面で有利な設備にするこ
とができる。In this respect, according to the above configuration of the invention of claim 1, the temperature at which the condenser in the heat pump is generated is much lower than the combustion temperature of the combustion type heating device, and the water temperature and the condenser to be heated are targeted. Since the difference in temperature from the generated temperature is small, it is possible to secure high utilization efficiency of effective energy. Also, the temperature of the water taken from the water intake source is low and the condenser uses the low temperature water as a heat radiation source. Since the condensation of the refrigerant in the process proceeds efficiently, a high coefficient of performance of the heat pump can be secured, which makes it possible to make the equipment more advantageous in terms of energy efficiency than when using a combustion type heating device. it can.
【０００９】〔２〕請求項２に係る発明は、請求項１に
係る発明の実施に好適な実施形態を特定するものであ
り、その特徴は、前記取水源から採取した後、前記散水
手段に供給せずに排出する水を熱源として前記ヒートポ
ンプに温熱を発生させて、その発生温熱を蓄熱手段に蓄
熱する蓄熱運転と、前記蓄熱手段に蓄熱した熱を熱源と
して前記ヒートポンプに温熱を発生させて、その発生温
熱により前記散水手段に対する前記取水源からの供給水
を加熱する蓄熱利用の散水融雪運転との切り換えが可能
な構成にしてある点にある。[2] The invention according to claim 2 specifies the preferred embodiment for carrying out the invention according to claim 1, which is characterized in that after the water is collected from the water intake source, Heat is generated in the heat pump by using water to be discharged without being supplied as a heat source, and a heat storage operation in which the generated heat is stored in the heat storage means, and the heat stored in the heat storage means is used as a heat source to generate heat in the heat pump. The heat generated is used to heat the water supplied from the water intake source to the water sprinkling means, and it is possible to switch to the sprinkling snow melting operation using heat storage.
【００１０】つまり、散水式融雪の散水用水として取水
源から採取する水（例えば、河川水、湖沼水、海水、井
水など）は、一般にヒートポンプの熱源として優れたも
のである場合が多いことから、取水源からの採取水を熱
源としてヒートポンプに温熱を発生させる上記蓄熱運転
では、ヒートポンプを効率良く運転することができて、
高温のヒートポンプ発生温熱を効率良く蓄熱手段に蓄熱
することができる。That is, the water (eg, river water, lake water, sea water, well water, etc.) collected from the water intake source as the water for sprinkling snow melting is generally an excellent heat source for the heat pump. In the heat storage operation in which the heat pump uses the water collected from the water intake source as the heat source to generate heat, the heat pump can be operated efficiently,
It is possible to efficiently store the high temperature heat generated by the heat pump in the heat storage means.
【００１１】そして、この蓄熱運転の後に実施する上記
蓄熱利用の散水融雪運転では、先の蓄熱運転で蓄熱手段
に蓄熱した高温熱を熱源としてヒートポンプを一層効率
良く高出力状態で運転することができて、散水手段に対
する取水源からの供給水に対し高い加熱機能を発揮させ
ることができ、これらの点で、上記構成によれば融雪性
能に一層優れた散水式融雪設備にすることができる。In the water-sprinkling snow melting operation using the heat storage, which is carried out after the heat storage operation, the heat pump can be operated more efficiently and in a high output state by using the high temperature heat stored in the heat storage means in the previous heat storage operation as a heat source. Thus, a high heating function can be exhibited for the water supplied from the water intake source to the water sprinkling means, and in these respects, the water sprinkling type snow melting equipment having more excellent snow melting performance can be obtained according to the above configuration.
【００１２】なお、請求項２に係る発明の実施において
は、取水源からの採取水以外のもの（例えば大気空気や
地中土壌など）を熱源としてヒートポンプに温熱を発生
させて、その発生温熱により散水手段に対する取水源か
らの供給水を加熱する通常の散水融雪運転も行なえるよ
うにし、そして、融雪の不要時に蓄熱運転を実施し、こ
れに対し、融雪運転の開始当初や融雪負荷の大きいとき
に蓄熱利用の散水融雪運転を実施し、それ以外の融雪必
要時に通常の散水融雪運転を実施するといった運転形態
を採るのが望ましい。In the practice of the invention according to claim 2, heat other than the water sampled from the water intake source (for example, atmospheric air or underground soil) is used as a heat source to generate heat in the heat pump, and the generated heat generates heat. The normal water-sprinkling and snow-melting operation that heats the water supplied from the water intake source to the water-sprinkling means can also be performed, and the heat storage operation is performed when snow-melting is not required. It is desirable to adopt an operation mode in which the water-sprinkling and snow-melting operation using heat storage is carried out, and the normal water-spraying and snow-melting operation is carried out when other snow melting is required.
【００１３】また、上記蓄熱利用の散水融雪運転を実施
するのに、先の蓄熱運転で蓄熱手段に蓄熱した熱とそれ
以外の熱源媒体の保有熱との両方を熱源としてヒートポ
ンプに温熱を発生させる運転形態を採るようにしてもよ
い。Further, in carrying out the water-sprinkling and snow-melting operation utilizing the heat storage, the heat pump generates heat by using both the heat stored in the heat storage means in the previous heat storage operation and the heat held by the other heat source medium as heat sources. You may make it take a driving form.
【００１４】取水量の少量化を図る上では、蓄熱運転に
おいてヒートポンプの熱源とした後に排出する水を取水
源に戻すようにするのが望ましいが、場合によっては、
この排出水を他の用途に利用するようにしてもよい。In order to reduce the amount of water intake, it is desirable to return the discharged water to the water source after using it as the heat source of the heat pump in the heat storage operation.
The discharged water may be used for other purposes.
【００１５】〔３〕請求項３に係る発明は、請求項１に
係る発明の実施に好適な実施形態を特定するものであ
り、その特徴は、地中に埋設した地中熱交換器で採取す
る地中熱を熱源として前記ヒートポンプに温熱を発生さ
せて、その発生温熱により前記散水手段に対する前記取
水源からの供給水を加熱する地中熱利用の散水融雪運転
と、前記取水源から採取した後、前記散水手段に供給せ
ずに排出する水を熱源として前記ヒートポンプに温熱を
発生させて、その発生温熱を前記地中熱交換器からの放
熱により地中へ蓄熱する地中蓄熱運転との切り換えが可
能な構成にしてある点にある。[3] The invention according to claim 3 specifies a preferred embodiment for carrying out the invention according to claim 1, and the feature thereof is that it is collected by an underground heat exchanger buried in the ground. Generate heat from the heat pump using the geothermal heat as a heat source, and use the generated heat to heat the water supplied from the water intake source to the water sprinkling means using the geothermal heat to perform snowmelting operation and collect from the water intake source. After that, with the underground heat storage operation of generating heat in the heat pump by using the water discharged without being supplied to the sprinkling means as a heat source, and storing the generated heat into the ground by radiating heat from the underground heat exchanger. The point is that the configuration is switchable.
【００１６】つまり、前述の如く、散水式融雪の散水用
水として取水源から採取する水は、一般にヒートポンプ
の熱源として優れたものである場合が多いことから、取
水源からの採取水を熱源としてヒートポンプに温熱を発
生させる上記地中蓄熱運転では、ヒートポンプを効率良
く運転することができて、高温のヒートポンプ発生温熱
を効率良く地中熱交換器周りの地中に蓄熱することがで
きる。That is, as described above, since the water collected from the water intake source as the water for sprinkling snow is generally excellent as a heat source of the heat pump in many cases, the heat pump uses the water collected from the water intake source as the heat source. In the above-mentioned underground heat storage operation of generating warm heat, the heat pump can be efficiently operated, and the high temperature heat pump generated heat can be efficiently stored in the ground around the underground heat exchanger.
【００１７】そして、この地中蓄熱運転の後に実施する
上記地中熱利用の散水融雪運転では、先の地中蓄熱運転
で蓄熱した高温熱を熱源としてヒートポンプを一層効率
良く高出力状態で運転することができて、散水手段に対
する取水源からの供給水に対し高い加熱機能を発揮させ
ることができ、これらの点で、上記構成によれば融雪性
能に一層優れた散水式融雪設備にすることができる。In the sprinkling snow melting operation using the underground heat, which is carried out after the underground heat storage operation, the heat pump is operated more efficiently in a high output state by using the high temperature heat stored in the previous underground heat storage operation as a heat source. Therefore, it is possible to exert a high heating function for the water supplied from the water intake source to the water sprinkling means, and in these respects, according to the above configuration, it is possible to provide a water sprinkling type snow melting facility with further excellent snow melting performance. it can.
【００１８】なお、請求項３に係る発明の実施において
は、融雪の不要時に上記地中蓄熱運転を実施し、その
後、融雪が必要になったときに上記地中熱利用の散水融
雪運転を実施するのが望ましいが、地中熱利用の散水融
雪運転において、先の地中蓄熱運転で地中に蓄熱した高
温熱を消費し切った後も融雪が必要な状況が続く場合に
は、蓄熱分以外の通常地中熱を地中熱交換器から採取す
る形態で地中熱利用の散水融雪運転を継続実施するよう
にすればよい。In the practice of the invention according to claim 3, the underground heat storage operation is carried out when the snow melting is unnecessary, and thereafter, the sprinkling snow melting operation utilizing the geothermal heat is carried out when the snow melting is required. However, in the case of sprinkling snow melting operation using geothermal heat, if the situation where snow melting is required continues even after the high temperature heat stored in the ground in the previous underground heat storage operation has been exhausted, Other than that, normal ground heat may be collected from the ground heat exchanger to continuously perform the sprinkling snow melting operation using the ground heat.
【００１９】なお、請求項２に係る発明と同様、取水量
の少量化を図る上では、地中蓄熱運転においてヒートポ
ンプの熱源とした後に排出する水を取水源に戻すように
するのが望ましいが、場合によっては、この排出水を他
の用途に利用するようにしてもよい。As in the second aspect of the present invention, in order to reduce the amount of water intake, it is desirable to return the water discharged after it is used as the heat source of the heat pump in the underground heat storage operation to the water source. In some cases, this discharged water may be used for other purposes.
【００２０】〔４〕請求項４に係る発明は、請求項１に
係る発明の実施に好適な実施形態を特定するものであ
り、その特徴は、前記取水源から採取した水を前記ヒー
トポンプにより加熱して貯水槽に貯留する蓄熱運転と、
前記貯水槽の貯留水を前記ヒートポンプにより加熱して
前記散水手段に供給する蓄熱利用の散水融雪運転との切
り換えが可能な構成にしてある点にある。[4] The invention according to claim 4 specifies the preferred embodiment for carrying out the invention according to claim 1, which is characterized in that the water collected from the water intake source is heated by the heat pump. And heat storage operation to store in the water tank,
The point is that the stored water in the water storage tank is heated by the heat pump and supplied to the water sprinkling means, and can be switched to the water-sprinkling and snow-melting operation.
【００２１】つまり、上記蓄熱運転では、取水源からの
採取水をヒートポンプにより加熱して貯水槽に貯留する
ことで、高温のヒートポンプ発生温熱を貯水槽に蓄熱す
る形態にすることができる。In other words, in the heat storage operation, the collected heat from the water intake source is heated by the heat pump and stored in the water storage tank, so that the high-temperature heat pump generated heat can be stored in the water storage tank.
【００２２】そして、この蓄熱運転の後に実施する上記
蓄熱利用の散水融雪運転では、先の蓄熱運転で貯水槽に
貯留した高温水（すなわち、先の蓄熱運転による蓄熱高
温熱を保有する水）をさらにヒートポンプにより加熱し
た上で散水手段により融雪対象箇所に散水することか
ら、融雪を一層効果的に促進することができ、これらの
点で、上記構成によれば融雪性能に一層優れた散水式融
雪設備にすることができる。In the water-sprinkling and snow-melting operation using heat storage, which is carried out after the heat storage operation, the high temperature water stored in the water storage tank in the previous heat storage operation (that is, the water containing the stored high temperature heat in the previous heat storage operation) is used. Furthermore, since the water is sprayed to the snow melting target area by the water sprinkling means after being heated by the heat pump, the snow melting can be more effectively promoted. Can be equipment.
【００２３】なお、請求項４に係る発明の実施において
は、融雪の不要時に上記蓄熱運転を実施し、その後、融
雪が必要になったときに上記蓄熱利用の散水融雪運転を
実施するのが望ましいが、その蓄熱利用の散水融雪運転
において、先の蓄熱運転で貯水槽に貯留した高温水を消
費し切った後も融雪が必要な状況が続く場合には、取水
源からの採取水をヒートポンプにより加熱して、その加
熱水を貯水槽への貯留工程を省いた形態でそのまま散水
手段に供給する通常形態の散水融雪運転を継続実施する
ようにすればよい。In the practice of the invention according to claim 4, it is desirable to carry out the heat storage operation when snow melting is not necessary, and then to carry out the water spraying snow melting operation using the heat storage when snow melting becomes necessary. However, in the sprinkling snow melting operation using the heat storage, if the situation where the snow melting is required continues even after the high temperature water stored in the water storage tank in the previous heat storage operation has been exhausted, the water collected from the water intake source is It suffices to continue the water-sprinkling and snow-melting operation in the normal form in which the heated water is heated and the heated water is supplied to the water sprinkling means as it is without the step of storing in the water storage tank.
【００２４】また、請求項４に係る発明の実施におい
て、蓄熱運転や散水融雪運転の際のヒートポンプの熱源
には、大気空気を代表として種々のものを使用すること
ができる。Further, in the practice of the invention according to claim 4, various kinds of air can be used as a heat source of the heat pump during the heat storage operation or the sprinkling snow melting operation.
【００２５】〔５〕請求項５に係る発明は、請求項１に
係る発明の実施に好適な実施形態を特定するものであ
り、その特徴は、前記取水源としての取水井から採取し
た水を前記ヒートポンプにより加熱して前記散水手段に
供給する散水融雪運転と、その取水井から採取した水を
前記ヒートポンプにより加熱した後、前記散水手段に供
給せずに再び取水井に戻す取水井蓄熱運転との切り換え
が可能な構成にしてある点にある。[5] The invention according to claim 5 specifies an embodiment suitable for carrying out the invention according to claim 1, and is characterized in that the water collected from the intake well as the intake source is Water-sprinkling snow melting operation that is heated by the heat pump and is supplied to the water sprinkling means, and water taken from the water intake well is heated by the heat pump, and is then returned to the water intake well without being supplied to the water sprinkling means. The point is that the switch can be switched.
【００２６】つまり、上記取水井蓄熱運転では、取水井
からの採取水をヒートポンプにより加熱して再び取水井
へ戻すことで、高温のヒートポンプ発生温熱を取水井及
び取水井周りの地中に蓄熱することができる。That is, in the intake well heat storage operation, the water collected from the intake well is heated by the heat pump and returned to the intake well to store the high temperature heat generated by the heat pump in the intake well and the ground around the intake well. be able to.
【００２７】そして、取水井蓄熱運転の後に実施する上
記散水融雪運転では、先の取水井蓄熱運転で蓄熱した高
温熱により昇温した水を取水井から採取して、その採取
水をさらにヒートポンプにより加熱した上で散水手段に
より融雪対象箇所に散水することから、融雪を一層効果
的に促進することができ、これらの点で、上記構成によ
れば融雪性能に一層優れた散水式融雪設備にすることが
できる。Then, in the above-mentioned sprinkling snow melting operation which is carried out after the heat storage operation of the intake well, the water heated by the high temperature heat accumulated in the heat storage operation of the previous intake well is collected from the water well, and the collected water is further collected by the heat pump. Since the water is sprayed on the snow melting target area by the water sprinkling means after being heated, the snow melting can be more effectively promoted, and in these respects, according to the above configuration, the water spraying type snow melting equipment is further excellent in the snow melting performance. be able to.
【００２８】なお、請求項５に係る発明の実施において
は、融雪の不要時に上記取水井蓄熱運転を実施し、その
後、融雪が必要になったときに上記散水融雪運転を実施
するのが望ましいが、その散水融雪運転において、先の
取水井蓄熱運転で取水井及び取水井周りの地中に蓄熱し
た熱を消費し切った後も融雪が必要な状況が続く場合に
は、蓄熱分の熱を持たない水（通常の井水）を取水井か
ら採取して、その採取水をヒートポンプにより加熱した
上で散水手段に供給する通常形態の散水融雪運転を継続
実施するようにすればよい。In the practice of the invention according to claim 5, it is desirable that the above-mentioned intake well heat storage operation is carried out when snow melting is unnecessary, and then the above-mentioned sprinkling snow melting operation is carried out when snow melting becomes necessary. , In the sprinkling snow melting operation, if the situation where snow melting is required continues after the heat accumulated in the intake well and the ground around the intake well in the previous intake well heat storage operation is exhausted, Water having no water (normal well water) may be collected from the water well, the collected water may be heated by the heat pump, and then the normal form of water-sprinkling snow melting operation may be continuously performed.
【００２９】また、請求項５に係る発明の実施におい
て、取水井蓄熱運転や散水融雪運転の際のヒートポンプ
の熱源には、大気空気を代表として種々のものを使用す
ることができる。Further, in the practice of the invention according to claim 5, various types of air can be used as a heat source of the heat pump during the heat storage operation of the intake well and the snow melting operation of the water spray.
【００３０】〔６〕請求項６に係る発明は、請求項１に
係る発明の実施に好適な実施形態を特定するものであ
り、その特徴は、前記取水源から採取した水のうちの一
部を前記散水手段に供給するのに伴い、前記取水源から
採取した水のうち前記散水手段に供給せずに排出する他
部の水を熱源として前記ヒートポンプに温熱を発生させ
て、その発生温熱により前記散水手段に対する前記取水
源からの供給水を加熱する構成にしてある点にある。[6] The invention according to claim 6 specifies an embodiment suitable for carrying out the invention according to claim 1, and is characterized in that a part of water collected from the water intake source. Along with the supply of water to the water sprinkling means, the other part of the water collected from the water intake source that is discharged without being supplied to the water sprinkling means is used as a heat source to generate heat in the heat pump, and by the generated heat. The point is that the water supplied from the water intake source to the water sprinkling means is heated.
【００３１】つまり、前述の如く、散水式融雪の散水用
水として取水源から採取する水は、一般にヒートポンプ
の熱源として優れたものである場合が多いことから、上
記の如く、取水源から採取した水のうち散水手段に供給
せずに排出する他部の水を熱源としてヒートポンプに温
熱を発生させて、その発生温熱により散水手段に対する
取水源からの供給水（すなわち上記した一部の水）を加
熱するようにすれば、ヒートポンプを効率良く高出力状
態で運転することができて、散水手段に対する取水源か
らの供給水に対し高い加熱機能を発揮させることがで
き、この点で、上記構成によれば融雪性能に一層優れた
散水式融雪設備にすることができる。That is, as described above, the water collected from the water intake source as the water for watering the water spray type snowmelt is generally excellent as the heat source of the heat pump in many cases. Therefore, as described above, the water collected from the water intake source is used. Of the other part of the water that is not supplied to the water sprinkling means and is used as a heat source to generate heat in the heat pump, and the generated heat heats the water supplied from the water intake source to the water sprinkling means (that is, part of the water described above). By doing so, the heat pump can be efficiently operated in a high output state, and a high heating function can be exerted on the water supplied from the water intake source to the water sprinkling means. If so, it is possible to provide a water-sprinkling type snow melting facility with even better snow melting performance.
【００３２】また、取水源からの採取水を散水用水と熱
源水とに兼用する形態になることで、設備構成も簡略な
ものにすることができる。Further, since the water collected from the water intake source can be used as both sprinkling water and heat source water, the facility structure can be simplified.
【００３３】なお、請求項６に係る発明の実施において
は、取水源からの採取水（上記他部の水）と取水源から
の採取水以外のもの（例えば大気空気や地中土壌など）
との両方を熱源としてヒートポンプに温熱を発生させ
て、その発生温熱により散水手段に対する取水源からの
供給水を加熱するようにしてもよく、また、取水源から
の採取水（上記他部の水）を熱源としてヒートポンプに
温熱を発生させて、その発生温熱により散水手段に対す
る取水源からの供給水を加熱する上記の如き運転と、取
水源からの採取水以外のものを熱源としてヒートポンプ
に温熱を発生させて、その発生温熱により散水手段に対
する取水源からの供給水を加熱する運転との切り換えが
可能な構成にしてもよい。In the practice of the invention according to claim 6, collected water from the water intake source (water of the above-mentioned other parts) and water other than the water collected from the water intake source (for example, atmospheric air, underground soil, etc.)
It is also possible to generate heat in the heat pump using both of these as heat sources and heat the supply water from the water intake source to the water sprinkling means by the generated heat, or to collect water from the water intake source (the water of other parts above). ) Is used as a heat source to generate heat in the heat pump, and the generated heat heats the supply water from the water intake source to the sprinkling means, and the heat pump uses heat other than the water collected from the water intake source as the heat source. It may be configured such that it can be switched to the operation of generating the generated water and heating the water supplied from the water intake source to the water sprinkling means by the generated heat.
【００３４】また、取水量の少量化を図る上では、ヒー
トポンプの熱源とした後に排出する水を取水源に戻すよ
うにするのが望ましいが、場合によっては、この排出水
を他の用途に利用するようにしてもよい。Further, in order to reduce the amount of water taken in, it is desirable to return the discharged water to the water source after it has been used as the heat source of the heat pump. However, in some cases, this discharged water is used for other purposes. You may do it.
【００３５】[0035]
【発明の実施の形態】〔第１実施形態〕図１は請求項３
に係る発明を適用した散水式融雪設備を示し、１は融雪
対象箇所である道路Ｔに対して多数の散水ノズル１ａか
ら水Ｗを散水することで道路Ｔの融雪を行なう散水手段
としての散水装置、２はその散水装置１に供給する散水
用水Ｗを加熱する熱源ユニット、３は熱源ユニット２の
設置箇所で地中Ｇに埋設した地中熱交換器である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIG.
1 shows a sprinkler type snow melting equipment to which the invention according to 1 is applied, wherein 1 is a sprinkling device as a sprinkling means for melting snow on the road T by sprinkling water W from a large number of sprinkling nozzles 1a on a road T which is a target for snow melting. Reference numeral 2 denotes a heat source unit that heats the water W for watering to be supplied to the water sprinkler 1, and reference numeral 3 denotes an underground heat exchanger buried in the ground G at the installation location of the heat source unit 2.
【００３６】熱源ユニット２には、図２に示す如くヒー
トポンプ４、給水ポンプ５、循環ポンプ６を装備してあ
り、ヒートポンプ４には圧縮機４ａ、膨張弁４ｂ、水側
熱交換器４ｃ、熱媒側熱交換器４ｄ，並びに、四方弁４
ｅを主要構成品として冷媒回路４ｒを形成した蒸気圧縮
式のヒートポンプを用いている。As shown in FIG. 2, the heat source unit 2 is equipped with a heat pump 4, a water supply pump 5 and a circulation pump 6, and the heat pump 4 has a compressor 4a, an expansion valve 4b, a water side heat exchanger 4c, a heat exchanger 4c and a heat exchanger 4. Medium side heat exchanger 4d and four-way valve 4
A vapor compression heat pump in which the refrigerant circuit 4r is formed by using e as a main component is used.
【００３７】７は河川等の取水源Ｓから水Ｗを採取して
その採取水Ｗをヒートポンプ４の水側熱交換器４ｃに送
る取水路であり、８Ａは水側熱交換器４ｃにおいて冷媒
Ｒと熱交換した後、水側熱交換器４ｃから送出される採
取水Ｗを散水用水として散水装置１に供給する給水路、
８Ｂは同じく水側熱交換器４ｃから送出される採取水Ｗ
を取水源Ｓに戻す還水路である。Reference numeral 7 is an intake passage for collecting water W from an intake source S such as a river and sending the collected water W to the water side heat exchanger 4c of the heat pump 4, and 8A is a refrigerant R in the water side heat exchanger 4c. A water supply path for supplying the collected water W sent from the water side heat exchanger 4c to the water sprinkler 1 as water for water sprinkling after heat exchange with
8B is the sampled water W that is also sent from the water side heat exchanger 4c
It is a return channel that returns the water to the water source S.
【００３８】また、９は水側熱交換器４ｃから送出され
る採取水Ｗを給水路８Ａに導く融雪用導水状態と水側熱
交換器４ｃから送出される採取水Ｗを還水路８Ｂに導く
蓄熱用導水状態との切り換えを行なう導水切換弁であ
り、融雪用の導水状態では同図２に示す如く、給水ポン
プ５の運転により取水源Ｓから水Ｗを採取するととも
に、その採取水Ｗを取水路７、水側熱交換器４ｃ、給水
路８Ａを通じ散水用水として散水装置１に供給し、一
方、蓄熱用の導水状態では図３に示す如く、給水ポンプ
５の運転により取水源Ｓから水Ｗを採取するとともに、
その採取水Ｗを取水路７、水側熱交換器４ｃ、還水路８
Ｂを通じて再び取水源Ｓに戻す。Reference numeral 9 indicates a state for introducing snow for guiding the collected water W sent from the water side heat exchanger 4c to the water supply channel 8A and guiding the collected water W sent from the water side heat exchanger 4c to the return channel 8B. This is a water transfer switching valve for switching to the heat storage water transfer state. In the snowmelt water transfer state, as shown in FIG. 2, water W is collected from the water intake source S by the operation of the water supply pump 5, and the collected water W is collected. Water is supplied to the sprinkler 1 as sprinkling water through the water intake passage 7, the water-side heat exchanger 4c, and the water supply passage 8A, while in the state of transferring heat for heat storage, as shown in FIG. While collecting W,
Intake channel 7, water side heat exchanger 4c, return channel 8
Return to the water intake source S through B again.
【００３９】１０はヒートポンプ４の熱媒側熱交換器４
ｄと地中熱交換器３とにわたらせた熱媒循環路であり、
循環ポンプ６の運転によりこの熱媒循環路１０を通じて
熱媒側熱交換器４ｄと地中熱交換器３との間で熱媒Ｌ
（本実施形態ではブライン）を循環させる。10 is a heat medium side heat exchanger 4 of the heat pump 4.
d is a heat medium circulation path extending over the ground heat exchanger 3 and
By operating the circulation pump 6, the heat medium L is exchanged between the heat medium side heat exchanger 4d and the underground heat exchanger 3 through the heat medium circulation passage 10.
(Brine in this embodiment) is circulated.
【００４０】ヒートポンプ４は四方弁４ｅによる冷媒経
路の切り換えで融雪用のヒートポンプ運転と蓄熱用のヒ
ートポンプ運転とを択一的に実施するようにしてあり、
融雪用のヒートポンプ運転では、図２に示す如く冷媒Ｒ
を圧縮機４ａ−水側熱交換器４ｃ−膨張弁４ｂ−熱媒側
熱交換器４ｄ−圧縮機４ａの順に循環させ、これによ
り、熱媒側熱交換器４ｄを蒸発器として熱媒循環路１０
の循環熱媒Ｌに対し吸熱機能させるとともに、水側熱交
換器４ｃを凝縮器として取水源Ｓからの採取水Ｗに対し
放熱機能（換言すれば、採取水Ｗに対し加熱機能）させ
る。The heat pump 4 is designed to selectively perform the heat pump operation for snow melting and the heat pump operation for heat storage by switching the refrigerant path by the four-way valve 4e.
In heat pump operation for snow melting, as shown in FIG.
Is circulated in the order of compressor 4a-water side heat exchanger 4c-expansion valve 4b-heat medium side heat exchanger 4d-compressor 4a, whereby the heat medium side heat exchanger 4d is used as an evaporator and a heat medium circulation path. 10
The circulating heat medium L is made to absorb heat, and the water side heat exchanger 4c is used as a condenser to radiate the collected water W from the water intake source S (in other words, heat the collected water W).
【００４１】また、蓄熱用のヒートポンプ運転では、図
３に示す如く冷媒Ｒを逆に圧縮機４ａ―熱媒側熱交換器
４ｄ−膨張弁４ｂ−水側熱交換器４ｃ−圧縮機４ａの順
に循環させ、これにより、水側熱交換器４ｃを蒸発器と
して取水源Ｓからの採取水Ｗに対し吸熱作用させるとと
もに、熱媒側熱交換器４ｄを凝縮器として熱媒循環路１
０の循環熱媒Ｌに対し放熱作用（循環熱媒Ｌに対し加熱
作用）させる。Further, in the heat pump operation for heat storage, as shown in FIG. 3, the refrigerant R is reversed in the order of compressor 4a-heat medium side heat exchanger 4d-expansion valve 4b-water side heat exchanger 4c-compressor 4a. By circulating the water, the water side heat exchanger 4c acts as an evaporator so as to absorb heat from the sampled water W from the water intake source S, and the heat medium side heat exchanger 4d acts as a condenser.
The circulating heat medium L of 0 is radiated (the circulating heat medium L is heated).
【００４２】つまり、この融雪設備では、図２に示す如
く、導水切換弁９を融雪用導水状態の側に切り換えて融
雪用ヒートポンプ運転を実施することにより、熱媒側熱
交換器４ｄにおいて循環熱媒Ｌを介し地中熱交換器３か
ら地中熱を採取する形態で、地中熱を熱源としてヒート
ポンプ４に温熱を発生させ、その発生温熱により水側熱
交換器４ｃにおいて散水装置１に対する取水源Ｓからの
供給水Ｗを加熱して、その加熱水Ｗを道路Ｔに散水する
地中熱利用の散水融雪運転を実施する。That is, in this snow melting equipment, as shown in FIG. 2, the heat transfer switching valve 9 is switched to the water transfer state for snow melting and the heat pump operation for snow melting is carried out to circulate heat in the heat medium side heat exchanger 4d. In the form of collecting the underground heat from the underground heat exchanger 3 via the medium L, the underground heat is used as a heat source to generate heat in the heat pump 4, and the generated heat heats the water side heat exchanger 4c to the sprinkler 1. Water supply water W from the water source S is heated, and the heated water W is sprinkled on the road T to perform a sprinkling snow melting operation using geothermal heat.
【００４３】また、図３に示す如く、導水切換弁９を蓄
熱用導水状態の側に切り換えて蓄熱用ヒートポンプ運転
を実施することにより、取水源Ｓからの採取水Ｗの保有
熱を水側熱交換器４ｃにおいて採取する形態で、取水源
Ｓから採取した後、散水装置１に供給せずに取水源Ｓに
戻す水Ｗを熱源としてヒートポンプ４に温熱を発生さ
せ、その発生温熱を熱媒側熱交換器４ｄでの熱媒加熱に
より循環熱媒Ｌを介し地中熱交換器３から地中Ｇへ放熱
する形態で地中Ｇへ蓄熱する地中蓄熱運転を実施する。Further, as shown in FIG. 3, the heat transfer switching valve 9 is switched to the heat storage water transfer state side to carry out the heat storage heat pump operation, whereby the heat retained by the sampled water W from the water intake source S is transferred to the water side heat source. In the form of sampling in the exchanger 4c, after collecting from the water intake source S, the heat W is generated in the heat pump 4 by using the water W which is not supplied to the sprinkler 1 and returned to the water intake source S as a heat source. The underground heat storage operation of storing heat in the underground G in a form of radiating heat from the underground heat exchanger 3 to the underground G via the circulating heating medium L by heating the heating medium in the heat exchanger 4d is performed.
【００４４】そして、設備の運転形態としては、融雪の
不要時に図３に示す地中蓄熱運転を実施して地中Ｇへ蓄
熱しておき、その後、融雪が必要になったとき、先の地
中蓄熱運転において蓄熱した高温熱の利用により運転出
力を高める形態で図２に示す地中熱利用の散水融雪運転
を実施して、道路Ｔの融雪を行なう。また、この地中熱
利用の散水融雪運転において、先の地中蓄熱運転で地中
Ｇに蓄熱した熱を消費し切った後も融雪が必要な状況が
続くときには、蓄熱分以外の通常地中熱を地中熱交換器
３から採取する形態で図２に示す地中熱利用の散水融雪
運転を継続実施して、道路Ｔの融雪を行なう。As for the operation mode of the equipment, when the snow melting is not necessary, the underground heat storage operation shown in FIG. 3 is carried out to store heat in the underground G, and when the snow melting becomes necessary thereafter, In the medium heat storage operation, the sprinkling snow melting operation using the underground heat shown in FIG. 2 is performed in a mode in which the operation output is increased by using the high temperature heat stored, and the road T is melted. In addition, in this sprinkling snow melting operation using underground heat, when the situation where snow melting is necessary continues even after the heat stored in the ground G in the previous underground heat storage operation has been exhausted, normal underground In the form of collecting heat from the underground heat exchanger 3, the water-sprinkling snow melting operation using the underground heat shown in FIG.
【００４５】〔第２実施形態〕図４は請求項５に係る発
明を適用した散水式融雪設備を示し、１１は融雪対象箇
所である道路Ｔに対して多数の散水ノズル１１ａから水
Ｗを散水することで道路Ｔの融雪を行なう散水装置、１
２はその散水装置１１に供給する散水用水Ｗを加熱する
熱源ユニットである。[Second Embodiment] FIG. 4 shows a sprinkler type snow melting facility to which the invention according to claim 5 is applied, and 11 sprinkles water W from a large number of sprinkler nozzles 11a on a road T which is a target point for snow melting. Water sprinkler that melts snow on road T by doing 1
Reference numeral 2 is a heat source unit that heats the water W for watering supplied to the water sprinkler 11.
【００４６】熱源ユニット１２には、図５に示す如くヒ
ートポンプ１３及び給水ポンプ１４を装備してあり、ヒ
ートポンプ１３には圧縮機１３ａ、膨張弁１３ｂ、水側
熱交換器１３ｃ、空気側熱交換器１３ｄを主要構成品と
して冷媒回路１３ｒを形成した蒸気圧縮式のヒートポン
プを用いている。As shown in FIG. 5, the heat source unit 12 is equipped with a heat pump 13 and a water supply pump 14. The heat pump 13 has a compressor 13a, an expansion valve 13b, a water side heat exchanger 13c, and an air side heat exchanger. A vapor compression heat pump in which the refrigerant circuit 13r is formed by using 13d as a main component is used.
【００４７】１５は取水源Ｓとして取水井１６から井水
Ｗを採取してその採取水Ｗをヒートポンプ１３の水側熱
交換器１３ｃに送る取水路であり、１７Ａは水側熱交換
器１３ｃにおいて冷媒Ｒと熱交換した後、水側熱交換器
１３ｃから送出される採取水Ｗを散水用水として散水装
置１１に供給する給水路、１７Ｂは同じく水側熱交換器
１３ｃから送出される採取水Ｗを取水井１６に戻す還水
路である。Reference numeral 15 is an intake channel for collecting well water W from the intake well 16 as the intake source S and sending the collected water W to the water side heat exchanger 13c of the heat pump 13, and 17A is for the water side heat exchanger 13c. A water supply channel for supplying the sampled water W sent from the water side heat exchanger 13c to the water sprinkler 11 as water for watering after the heat exchange with the refrigerant R, 17B is also the sampled water W sent out from the water side heat exchanger 13c. It is a return channel that returns the water to the water well 16.
【００４８】また、１８は水側熱交換器１３ｃから送出
される採取水Ｗを給水路１７Ａに導く融雪用導水状態と
水側熱交換器１３ｃから送出される採取水Ｗを還水路１
７Ｂに導く蓄熱用導水状態との切り換えを行なう導水切
換弁であり、融雪用の導水状態では同図５に示す如く、
給水ポンプ１４の運転により取水井１６から井水Ｗを採
取するとともに、その採取水Ｗを取水路１５、水側熱交
換器１３ｃ、給水路１７Ａを通じ散水用水として散水装
置１１に供給し、一方、蓄熱用の導水状態では図６に示
す如く、給水ポンプ１４の運転により取水井１６から井
水Ｗを採取するとともに、その採取水Ｗを取水路１５、
水側熱交換器１３ｃ、還水路１７Ｂを通じて再び取水井
１６に戻す。Reference numeral 18 denotes a snow melting water guiding state for guiding the collected water W sent from the water side heat exchanger 13c to the water supply channel 17A, and the collected water W sent from the water side heat exchanger 13c for the return channel 1.
7B is a water transfer switching valve for switching to the heat storage water transfer state, and in the snowmelt water transfer state, as shown in FIG.
Well water W is collected from the intake well 16 by operating the water supply pump 14, and the collected water W is supplied to the sprinkler 11 as sprinkling water through the water passage 15, the water side heat exchanger 13c, and the water supply passage 17A, while In the state of conducting water for heat storage, as shown in FIG. 6, well water W is collected from the intake well 16 by operating the water supply pump 14, and the collected water W is taken into the water passage 15,
It returns to the intake well 16 again through the water side heat exchanger 13c and the return water channel 17B.
【００４９】ヒートポンプ１３は、図５及び図６に示す
如く冷媒Ｒを圧縮機１３ａ−水側熱交換器１３ｃ−膨張
弁１３ｂ−空気側熱交換器１３ｄ−圧縮機１３ａの順に
循環させる空気熱源運転を実施するものであり、この運
転により、空気側熱交換器１３ｄを蒸発器としてファン
１３ｅによる通風大気空気Ａに対し吸熱作用させるとと
もに、水側熱交換器１３ｃを凝縮器として取水井１６か
らの採取水Ｗに対し放熱作用（加熱作用）させる。The heat pump 13 is an air heat source operation in which the refrigerant R is circulated in the order of compressor 13a-water side heat exchanger 13c-expansion valve 13b-air side heat exchanger 13d-compressor 13a as shown in FIGS. By this operation, the air side heat exchanger 13d is used as an evaporator to cause the fan 13e to absorb heat against the ventilated atmospheric air A, and the water side heat exchanger 13c is used as a condenser from the intake well 16. The collected water W is caused to radiate heat (heat).
【００５０】つまり、この融雪設備では、図５に示す如
く、導水切換弁１８を融雪用導水状態の側に切り換えて
ヒートポンプ１３を運転することにより、空気側熱交換
器１３ｄにおいて大気空気Ａの保有熱を採取する形態
で、大気空気Ａを熱源としてヒートポンプ１３に温熱を
発生させ、その発生温熱により水側熱交換器１３ｃにお
いて散水装置１１に対する取水井１６からの供給水Ｗを
加熱して、その加熱水Ｗを道路Ｔに散水する散水融雪運
転を実施する。That is, in this snow melting facility, as shown in FIG. 5, the heat transfer switching valve 18 is switched to the water transfer state for snow melting and the heat pump 13 is operated to retain the atmospheric air A in the air side heat exchanger 13d. In the form of collecting heat, warm air is generated in the heat pump 13 using the atmospheric air A as a heat source, and the generated heat heats the water W supplied from the intake well 16 to the water sprinkler 11 in the water side heat exchanger 13c, A water-sprinkling and snow-melting operation of spraying the heated water W onto the road T is carried out.
【００５１】また、図６に示す如く、導水切換弁１８を
蓄熱用導水状態の側に切り換えてヒートポンプ１３を運
転することにより、同じく大気空気Ａを熱源としてヒー
トポンプ１３に温熱を発生させて、その発生温熱により
取水井１６からの供給水Ｗを加熱し、この加熱水Ｗを散
水装置１１に供給せずに再び取水井１６に戻すことで、
ヒートポンプ発生温熱を取水井１６及び取水井周りの地
中Ｇに蓄熱する取水井蓄熱運転を実施する。Further, as shown in FIG. 6, the heat transfer switching valve 18 is switched to the heat storage water transfer state side to operate the heat pump 13 to generate heat in the heat pump 13 using the atmospheric air A as a heat source. By heating the supply water W from the intake well 16 by the generated heat and returning the heated water W to the intake well 16 without supplying the heating water W to the sprinkler 11,
An intake well heat storage operation is performed in which the heat generated by the heat pump is stored in the intake well 16 and the underground G around the intake well.
【００５２】そして、設備の運転形態としては、融雪の
不要時に図６に示す取水井蓄熱運転を実施して取水井１
６及び取水井周りの地中Ｇに蓄熱しておき、その後、融
雪が必要になったとき、先の取水井蓄熱運転において蓄
熱した高温熱の利用により運転出力を高める形態で図５
に示す散水融雪運転を実施して、道路Ｔの融雪を行な
う。また、この散水融雪運転において、先の取水井蓄熱
運転で取水井１６及び取水井周りの地中Ｇに蓄熱した熱
を消費し切った後も融雪が必要な状況が続くときには、
蓄熱分の熱を持たない通常の井水Ｗをヒートポンプ１３
により加熱して散水装置１１に供給する通常の形態で図
５に示す散水融雪運転を継続実施して、道路Ｔの融雪を
行なう。As for the operation mode of the equipment, the intake well heat storage operation shown in FIG.
6 and the ground G around the intake well, and when snow melting is required thereafter, the operation output is increased by utilizing the high temperature heat stored in the previous intake well heat storage operation.
The snow-sprinkling and melting operation shown in FIG. In addition, in this sprinkling snow melting operation, when the situation in which snow melting is required continues even after the heat accumulated in the intake well 16 and the underground G around the intake well in the previous intake well heat storage operation is completely consumed,
The normal well water W that does not have the heat of the stored heat is used as the heat pump 13
The snow-melting operation of the water-sprinkling operation shown in FIG.
【００５３】〔第３実施形態〕図７は請求項２に係る発
明を適用した散水式融雪設備を示し、２１は融雪対象箇
所である道路Ｔに対して多数の散水ノズル２１ａから水
Ｗを散水することで道路Ｔの融雪を行なう散水装置、２
２はその散水装置２１に供給する散水用水Ｗを加熱する
熱源ユニット、２３は熱源ユニット２の近くに設置した
蓄熱手段としての蓄熱槽である。[Third Embodiment] FIG. 7 shows a sprinkler type snow melting facility to which the invention according to claim 2 is applied. Reference numeral 21 denotes water W sprayed from a large number of sprinkler nozzles 21a on a road T which is a target of snow melting. Water sprinkler that melts snow on road T by doing 2
Reference numeral 2 denotes a heat source unit that heats the water W for watering to be supplied to the water sprinkler 21, and 23 denotes a heat storage tank that is installed near the heat source unit 2 and serves as heat storage means.
【００５４】熱源ユニット２２にはヒートポンプ２４、
給水ポンプ２５、循環ポンプ２６を装備してあり、ヒー
トポンプ２４には圧縮機２４ａ、膨張弁２４ｂ、水側熱
交換器２４ｃ、熱媒側熱交換器２４ｄ、空気側熱交換器
２４ｅ、四方弁２４ｆ、切換弁２４ｇ，２４ｈを主要構
成品として冷媒回路２４ｒを形成した蒸気圧縮式のヒー
トポンプを用いている。The heat source unit 22 includes a heat pump 24,
A water supply pump 25 and a circulation pump 26 are provided, and the heat pump 24 includes a compressor 24a, an expansion valve 24b, a water side heat exchanger 24c, a heat medium side heat exchanger 24d, an air side heat exchanger 24e, and a four-way valve 24f. A vapor compression heat pump in which a refrigerant circuit 24r is formed by using the switching valves 24g and 24h as main components is used.
【００５５】２７は河川等の取水源Ｓから水Ｗを採取し
てその採取水Ｗをヒートポンプ２４の水側熱交換器２４
ｃに送る取水路であり、２８Ａは水側熱交換器２４ｃに
おいて冷媒Ｒと熱交換した後、水側熱交換器２４ｃから
送出される採取水Ｗを散水用水として散水装置２１に供
給する給水路、２８Ｂは同じく水側熱交換器２４ｃから
送出される採取水Ｗを取水源Ｓに戻す還水路である。Reference numeral 27 denotes water W collected from a water intake source S such as a river and the collected water W is used as a water side heat exchanger 24 of a heat pump 24.
Reference numeral 28A is a water intake channel for sending to c, and after 28A heat-exchanges with the refrigerant R in the water side heat exchanger 24c, the water supply channel for supplying the sampled water W sent from the water side heat exchanger 24c to the sprinkler device 21 as sprinkling water. , 28B are return channels for returning the sampled water W sent from the water side heat exchanger 24c to the water source S.
【００５６】また、２９は水側熱交換器２４ｃから送出
される採取水Ｗを給水路２８Ａに導く融雪用導水状態と
水側熱交換器２４ｃから送出される採取水Ｗを還水路２
８Ｂに導く蓄熱用導水状態との切り換えを行なう導水切
換弁であり、融雪用の導水状態では図７及び図８に示す
如く、給水ポンプ２５の運転により取水源Ｓから水Ｗを
採取するとともに、その採取水Ｗを取水路２７、水側熱
交換器２４ｃ、給水路２８Ａを通じ散水用水として散水
装置２１に供給し、一方、蓄熱用の導水状態では図９に
示す如く、給水ポンプ２５の運転により取水源Ｓから水
Ｗを採取するとともに、その採取水Ｗを取水路２７、水
側熱交換器２４ｃ、還水路２８Ｂを通じて再び取水源Ｓ
に戻す。Reference numeral 29 denotes a state of water for snow melting that guides the collected water W sent from the water side heat exchanger 24c to the water supply channel 28A and the collected water W sent from the water side heat exchanger 24c to the return channel 2.
8B is a water transfer switching valve for switching to the heat storage water transfer state, and in the snowmelt water transfer state, as shown in FIGS. 7 and 8, while the water W is collected from the water intake source S by the operation of the water supply pump 25, The collected water W is supplied to the sprinkler 21 as sprinkling water through the water passage 27, the water-side heat exchanger 24c, and the water supply passage 28A, while in the state of transferring water for heat storage, as shown in FIG. The water W is collected from the water intake source S, and the collected water W is taken again through the water intake path 27, the water side heat exchanger 24c, and the return water path 28B.
Return to.
【００５７】３０はヒートポンプ２４の熱媒側熱交換器
２４ｄと蓄熱槽２３とにわたらせた熱媒循環路であり、
循環ポンプ２６の運転によりこの熱媒循環路３０を通じ
て熱媒側熱交換器２４ｄと蓄熱槽２３との間で熱媒Ｌ
（本実施形態ではブライン）を循環させる。Reference numeral 30 denotes a heat medium circulating passage extending between the heat medium side heat exchanger 24d of the heat pump 24 and the heat storage tank 23,
By operating the circulation pump 26, the heat medium L is exchanged between the heat medium side heat exchanger 24d and the heat storage tank 23 through the heat medium circulation passage 30.
(Brine in this embodiment) is circulated.
【００５８】ヒートポンプ２４は四方弁２４ｆによる冷
媒経路の切り換えで融雪用のヒートポンプ運転と蓄熱用
のヒートポンプ運転とを択一的に実施するとともに、並
列に配置した熱媒側熱交換器２４ｄと空気側熱交換器２
４ｅとのいずれに冷媒Ｒを通過させるかを切換弁２４
ｇ，２４ｈにより切り換えるようにしてあり、これら切
換弁２４ｇ，２４ｈを熱媒側熱交換器２４ｄに冷媒通過
させる側に切り換えた状態での融雪用ヒートポンプ運転
では、図７に示す如く冷媒Ｒを圧縮機２４ａ−水側熱交
換器２４ｃ−膨張弁２４ｂ−熱媒側熱交換器２４ｄ−圧
縮機２４ａの順に循環させ、これにより、熱媒側熱交換
器２４ｄを蒸発器として熱媒循環路３０の循環熱媒Ｌに
対し吸熱機能させるとともに、水側熱交換器２４ｃを凝
縮器として取水源Ｓからの採取水Ｗに対し放熱機能（加
熱機能）させる。The heat pump 24 selectively performs the heat pump operation for snow melting and the heat pump operation for heat storage by switching the refrigerant path by the four-way valve 24f, and the heat medium side heat exchanger 24d and the air side arranged in parallel. Heat exchanger 2
The switching valve 24 determines which of the 4e the refrigerant R passes through.
g, 24h, and in the heat pump operation for snow melting in a state where these switching valves 24g, 24h are switched to the side through which the refrigerant passes through the heat medium side heat exchanger 24d, the refrigerant R is compressed as shown in FIG. Machine 24a-water side heat exchanger 24c-expansion valve 24b-heat medium side heat exchanger 24d-compressor 24a are circulated in this order, whereby the heat medium side heat exchanger 24d serves as an evaporator in the heat medium circulation passage 30. The circulating heat medium L is made to have an endothermic function, and the water side heat exchanger 24c is used as a condenser to make the sampled water W from the water intake source S radiate heat (heat).
【００５９】また、切換弁２４ｇ，２４ｈを空気側熱交
換器２４ｅに冷媒通過させる側に切り換えた状態での融
雪用ヒートポンプ運転では、図８に示す如く冷媒Ｒを圧
縮機２４ａ−水側熱交換器２４ｃ−膨張弁２４ｂ−空気
側熱交換器２４ｅ−圧縮機２４ａの順に循環させ、これ
により、空気側熱交換器２４ｄを蒸発器としてファン２
４ｉによる通風大気空気Ａに対し吸熱機能させるととも
に、水側熱交換器２４ｃを凝縮器として取水源Ｓからの
採取水Ｗに対し放熱機能（加熱機能）させる。Further, in the heat pump operation for snow melting in a state where the switching valves 24g and 24h are switched to the side through which the refrigerant passes through the air side heat exchanger 24e, as shown in FIG. 8, the refrigerant R is transferred to the compressor 24a-water side heat exchange. The cooling device 24c, the expansion valve 24b, the air side heat exchanger 24e, and the compressor 24a are circulated in this order, whereby the air side heat exchanger 24d is used as an evaporator.
4i has a function of absorbing heat from the ventilated atmospheric air A, and a function of radiating (heating) the sampled water W from the water intake source S using the water-side heat exchanger 24c as a condenser.
【００６０】一方、切換弁２４ｇ，２４ｈを熱媒側熱交
換器２４ｄに冷媒通過させる側に切り換えた状態での蓄
熱用ヒートポンプ運転では、図９に示す如く冷媒Ｒを逆
に圧縮機２４ａ―熱媒側熱交換器２４ｄ−膨張弁２４ｂ
−水側熱交換器２４ｃ−圧縮機２４ａの順に循環させ、
これにより、水側熱交換器２４ｃを蒸発器として取水源
Ｓからの採取水Ｗに対し吸熱作用させるとともに、熱媒
側熱交換器２４ｄを凝縮器として熱媒循環路３０の循環
熱媒Ｌに対し放熱作用（加熱作用）させる。On the other hand, in the heat storage heat pump operation in the state where the switching valves 24g and 24h are switched to the side through which the refrigerant passes through the heat medium side heat exchanger 24d, as shown in FIG. Medium side heat exchanger 24d-Expansion valve 24b
-The water side heat exchanger 24c-The compressor 24a is circulated in this order,
As a result, the water-side heat exchanger 24c acts as an evaporator to endothermic the collected water W from the water intake source S, and the heat medium-side heat exchanger 24d acts as a condenser to form the circulating heat medium L in the heat medium circulation path 30. In contrast, heat radiation (heating) is applied.
【００６１】つまり、この融雪設備では、図７に示す如
く、導水切換弁２９を融雪用導水状態の側に切り換え、
かつ、切換弁２４ｇ，２４ｈを熱媒側熱交換器２４ｄに
冷媒通過させる側に切り換えた状態で融雪用ヒートポン
プ運転を実施することにより、熱媒側熱交換器４ｄにお
いて循環熱媒Ｌを介し蓄熱槽２３の槽内蓄積熱を採取す
る形態で、蓄熱槽２３の槽内蓄積熱を熱源としてヒート
ポンプ２４に温熱を発生させ、その発生温熱により水側
熱交換器２４ｃにおいて散水装置２１に対する取水源Ｓ
からの供給水Ｗを加熱して、その加熱水Ｗを道路Ｔに散
水する蓄熱利用の散水融雪運転を実施する。That is, in this snow melting equipment, as shown in FIG. 7, the water transfer switching valve 29 is switched to the side of the water transfer state for snow melting.
In addition, the heat pump operation for snow melting is performed in a state in which the switching valves 24g and 24h are switched to the side through which the refrigerant passes through the heat medium side heat exchanger 24d, so that heat is accumulated via the circulating heat medium L in the heat medium side heat exchanger 4d. In the form in which the accumulated heat in the tank of the tank 23 is collected, warm heat is generated in the heat pump 24 by using the accumulated heat in the tank of the heat storage tank 23 as a heat source, and by the generated heat, the water intake source S for the water sprinkler 21 in the water side heat exchanger 24c.
A water-sprinkling snow-melting operation using heat storage is performed in which the water W supplied from the above is heated and the heated water W is sprayed on the road T.
【００６２】また、図８に示す如く導水切換弁２９を融
雪用導水状態の側に切り換え、かつ、切換弁２４ｇ，２
４ｈを空気側熱交換器２４ｅに冷媒通過させる側に切り
換えた状態で融雪用ヒートポンプ運転を実施することに
より、空気側熱交換器４ｅにおいて大気空気Ａの保有熱
を採取する形態で、大気空気Ａを熱源としてヒートポン
プ２４に温熱を発生させ、その発生温熱により水側熱交
換器２４ｃにおいて散水装置２１に対する取水源Ｓから
の供給水Ｗを加熱して、その加熱水Ｗを道路Ｔに散水す
る通常形態の散水融雪運転を実施する。Further, as shown in FIG. 8, the water transfer switching valve 29 is switched to the side of the water transfer state for snow melting, and the switching valves 24g, 2g.
By performing the heat pump operation for snow melting in a state where 4h is switched to the side through which the refrigerant passes through the air-side heat exchanger 24e, the air-side heat exchanger 4e collects the heat of the atmospheric air A, so that the atmospheric air A Is used as a heat source to generate heat in the heat pump 24, and the generated heat heats the water W supplied from the water intake source S to the water sprinkler 21 in the water-side heat exchanger 24c to spray the heated water W on the road T. Form water sprinkling and melting operation.
【００６３】さらにまた、図９に示す如く、導水切換弁
２９を蓄熱用導水状態の側に切り換え、かつ、切換弁２
４ｇ，２４ｈを熱媒側熱交換器２４ｄに冷媒通過させる
側に切り換えた状態で蓄熱用ヒートポンプ運転を実施す
ることにより、取水源Ｓからの採取水Ｗの保有熱を水側
熱交換器２４ｃにおいて採取する形態で、取水源Ｓから
採取した後、散水装置２１に供給せずに取水源Ｓに戻す
水Ｗを熱源としてヒートポンプ２４に温熱を発生させ、
その発生温熱を熱媒側熱交換器２４ｄでの熱媒加熱によ
り循環熱媒Ｌを介して蓄熱槽２３へ蓄熱する蓄熱運転を
実施する。Furthermore, as shown in FIG. 9, the water transfer switching valve 29 is switched to the heat storage water transfer state side, and the switching valve 2
By performing the heat storage heat pump operation in a state where 4 g and 24 h are switched to the side through which the refrigerant passes through the heat medium side heat exchanger 24 d, the heat retained by the sampled water W from the water intake source S is transferred to the water side heat exchanger 24 c. After collecting from the water intake source S in a form of collecting, the heat pump 24 is caused to generate heat by using the water W returned to the water intake source S without being supplied to the sprinkler 21.
A heat storage operation is performed in which the generated heat is stored in the heat storage tank 23 via the circulating heat medium L by heating the heat medium in the heat medium side heat exchanger 24d.
【００６４】そして、設備の運転形態としては、融雪の
不要時に図９に示す蓄熱運転を実施して蓄熱槽２３へ蓄
熱しておき、その後、融雪が必要になったとき、先の蓄
熱運転において蓄熱した高温熱の利用により運転出力を
高める形態で図７に示す蓄熱利用の散水融雪運転を実施
して、道路Ｔの融雪を行なう。また、この蓄熱利用の散
水融雪運転において、先の蓄熱運転で蓄熱した熱を消費
し切った後も融雪が必要な状況が続くときには、大気空
気Ａをヒートポンプ２４の熱源とする図８に示す通常形
態の散水融雪運転を実施して、道路Ｔの融雪を行なう。As for the operation mode of the equipment, when the snow melting is not necessary, the heat storage operation shown in FIG. 9 is carried out to store heat in the heat storage tank 23. The water-sprinkling snow melting operation using heat storage shown in FIG. 7 is performed in a mode in which the operation output is increased by using the stored high temperature heat to perform snow melting on the road T. Further, in the sprinkling snow melting operation using the heat storage, when the situation where the snow melting is required continues even after the heat stored in the previous heat storage operation is completely consumed, the atmospheric air A is used as the heat source of the heat pump 24 as shown in FIG. The water sprinkling snow melting operation of the form is carried out to perform the snow melting of the road T.
【００６５】〔第４実施形態〕図１０は請求項４に係る
発明を適用した散水式融雪設備を示し、３１は融雪対象
箇所である道路Ｔに対して多数の散水ノズル３１ａから
水Ｗを散水することで道路Ｔの融雪を行なう散水装置、
３２はその散水装置３１に供給する散水用水Ｗを加熱す
る熱源ユニット、３３は熱源ユニット３２の近くに設置
した貯水槽である。[Fourth Embodiment] FIG. 10 shows a water-sprinkling type snow melting facility to which the invention according to claim 4 is applied. Reference numeral 31 sprays water W from a large number of water-spraying nozzles 31a on a road T which is a target of snow-melting. A sprinkler that melts snow on the road T by
Reference numeral 32 is a heat source unit that heats the water W for watering to be supplied to the water sprinkler 31, and 33 is a water tank installed near the heat source unit 32.
【００６６】熱源ユニット３２にはヒートポンプ３４及
び給水ポンプ３５を装備してあり、ヒートポンプ３４に
は圧縮機３４ａ、膨張弁３４ｂ、水側熱交換器３４ｃ、
空気側熱交換器３４ｄを主要構成品として冷媒回路３４
ｒを形成した蒸気圧縮式のヒートポンプを用いている。The heat source unit 32 is equipped with a heat pump 34 and a water supply pump 35, and the heat pump 34 has a compressor 34a, an expansion valve 34b, a water side heat exchanger 34c,
Refrigerant circuit 34 with air-side heat exchanger 34d as a main component
A vapor compression heat pump in which r is formed is used.
【００６７】３６は取水源Ｓから水Ｗを採取してその採
取水Ｗをヒートポンプ３４の水側熱交換器３４ｃに送る
取水路、３７は水側熱交換器３４ｃにおいて冷媒Ｒと熱
交換した後、水側熱交換器３４ｃから送出される採取水
Ｗを散水用水として散水装置３１に供給する給水路であ
り、３６Ａは取水路３６から分岐して貯水槽３３に接続
した槽側取水路、３７Ａは給水路３７から分岐して貯水
槽３３に接続した槽側給水路である。Reference numeral 36 is an intake channel for collecting water W from the intake source S and sending the collected water W to the water side heat exchanger 34c of the heat pump 34, and 37 is for exchanging heat with the refrigerant R in the water side heat exchanger 34c. , A water supply channel for supplying the sampled water W sent from the water side heat exchanger 34c to the water sprinkling device 31 as sprinkling water, 36A is a tank side water intake channel branched from the water intake channel 36 and connected to the water storage tank 33, 37A Is a tank-side water supply path branched from the water supply path 37 and connected to the water storage tank 33.
【００６８】また、３８Ａ，３８Ｂは、給水ポンプ３５
の運転により同図１０に示す如く取水源Ｓからの採取水
Ｗを取水路３６、水側熱交換器３４ｃ、給水路３７を通
じ散水用水として散水装置３１に供給する第１融雪用導
水状態と、給水ポンプ３５の運転により図１１に示す如
く取水源Ｓからの採取水Ｗを取水路３６、水側熱交換器
３４ｃ、槽側給水路３７Ａを通じて貯水槽３３に導く蓄
熱用導水状態と、給水ポンプ３５の運転により図１２に
示す如く貯水槽３３の貯留水Ｗを槽側取水路３６Ａ、水
側熱交換器３４ｃ、給水路３７を通じ散水用水として散
水装置３１に供給する第２融雪用導水状態との切り換え
を行なう三方弁である。Further, 38A and 38B are water supply pumps 35.
As shown in FIG. 10, the first snow-melting water guiding state in which the collected water W from the water intake source S is supplied to the sprinkler device 31 as sprinkling water through the water passage 36, the water-side heat exchanger 34c, and the water supply passage 37 as shown in FIG. As shown in FIG. 11, by operating the water supply pump 35, the heat storage water guiding state in which the collected water W from the water intake source S is guided to the water storage tank 33 through the water supply passage 36, the water side heat exchanger 34c, and the tank side water supply passage 37A, and the water supply pump. By the operation of 35, as shown in FIG. 12, the stored water W of the water storage tank 33 is supplied to the sprinkler 31 through the tank-side intake passage 36A, the water-side heat exchanger 34c, and the water supply passage 37 as sprinkling water to the sprinkler device 31 and the second snowmelt water guiding state. This is a three-way valve that switches between.
【００６９】ヒートポンプ３４は、図１０〜図１２の夫
々に示す如く冷媒Ｒを圧縮機３４ａ−水側熱交換器３４
ｃ−膨張弁３４ｂ−空気側熱交換器３４ｄ−圧縮機３４
ａの順に循環させる空気熱源運転を実施するものであ
り、この運転により、空気側熱交換器３４ｄを蒸発器と
してファン３４ｆによる通風大気空気Ａに対し吸熱作用
させるとともに、水側熱交換器３４ｃを凝縮器として水
側熱交換器３４ｃの器内通過水Ｗに対し放熱作用（加熱
作用）させる。The heat pump 34 includes a refrigerant R, a compressor 34a, and a water side heat exchanger 34, as shown in FIGS.
c-expansion valve 34b-air side heat exchanger 34d-compressor 34
The air heat source operation in which the air is circulated in the order of a is carried out, and this operation causes the air side heat exchanger 34d to act as an evaporator so as to absorb heat to the ventilated atmospheric air A by the fan 34f, and the water side heat exchanger 34c. As a condenser, the water passing through the inside of the water side heat exchanger 34c is radiated (heated).
【００７０】つまり、この融雪設備では、図１０に示す
如く、三方弁３８Ａ，３８Ｂを第１融雪用導水状態の側
に切り換えてヒートポンプ３４を運転することにより、
空気側熱交換器３４ｄにおいて大気空気Ａの保有熱を採
取する形態で、大気空気Ａを熱源としてヒートポンプ３
４に温熱を発生させ、その発生温熱により水側熱交換器
３４ｃにおいて散水装置３１に対する取水源Ｓからの供
給水Ｗを加熱して、その加熱水Ｗを道路Ｔに散水する通
常形態の散水融雪運転を実施する。That is, in this snow melting equipment, as shown in FIG. 10, the three-way valves 38A and 38B are switched to the first water-conducting state for snow melting to operate the heat pump 34,
The heat pump 3 uses the atmospheric air A as a heat source in the form of collecting the heat of the atmospheric air A in the air-side heat exchanger 34d.
4 to generate warm heat, heat the supplied water W from the water intake source S to the water sprinkler 31 in the water side heat exchanger 34c by the generated heat, and sprinkle the heated water W on the road T. Carry out driving.
【００７１】また、図１１に示す如く、三方弁３８Ａ，
３８Ｂを蓄熱用導水状態の側に切り換えてヒートポンプ
３４を運転することにより、同じく大気空気Ａを熱源と
してヒートポンプ３４に温熱を発生させて、その発生温
熱により取水源Ｓからの供給水Ｗを加熱し、この加熱水
Ｗを貯水槽３３に貯留してヒートポンプ発生温熱を貯水
槽３３に蓄熱する蓄熱運転を実施する。Further, as shown in FIG. 11, the three-way valve 38A,
38B is switched to the heat storage water guiding state side to operate the heat pump 34, thereby causing the heat pump 34 to generate warm heat by using the atmospheric air A as a heat source, and heat the supply water W from the water intake source S by the generated warm heat. The heat storage operation of storing the heated water W in the water storage tank 33 and storing the heat generated by the heat pump in the water storage tank 33 is performed.
【００７２】さらにまた、図１２に示す如く、三方弁３
８Ａ，３８Ｂを第２融雪用導水状態の側に切り換えてヒ
ートポンプ３４を運転することにより、同じく大気空気
Ａを熱源としてヒートポンプ３４に温熱を発生させて、
その発生温熱により散水装置３１に対する貯水槽３３か
らの供給水Ｗを加熱し、この加熱水Ｗを道路Ｔに散水す
る蓄熱利用の散水融雪運転を実施する。Furthermore, as shown in FIG. 12, the three-way valve 3
8A and 38B are switched to the second snow-melting water-conducting state side to operate the heat pump 34, so that heat is generated in the heat pump 34 by using the atmospheric air A as a heat source.
The generated heat is used to heat the water W supplied from the water storage tank 33 to the water sprinkler 31, and the heat-sprinkling snow-melting operation using heat storage for watering the heated water W on the road T is performed.
【００７３】そして、設備の運転形態としては、融雪の
不要時に図１１に示す蓄熱運転を実施することで貯水槽
３３に高温水Ｗを貯留して蓄熱しておき、その後、融雪
が必要になったとき、先の蓄熱運転において蓄熱した高
温熱の利用により運転出力を高める形態で図１２に示す
蓄熱利用の散水融雪運転を実施して、道路Ｔの融雪を行
なう。また、この蓄熱利用の散水融雪運転において、先
の蓄熱運転で貯水槽３３に貯留した加熱水Ｗを消費し切
った後も融雪が必要な状況が続くときには、取水源Ｓか
らの採取水Ｗをヒートポンプ１３により加熱してそのま
ま散水装置３１に供給する図１０に示す通常形態の散水
融雪運転を実施して、道路Ｔの融雪を行なう。As for the operation mode of the equipment, when the snow melting is not necessary, the heat storage operation shown in FIG. 11 is performed to store the high temperature water W in the water storage tank 33 to store the heat, and then the snow melting is required. At this time, the snow-melting water spraying operation using heat storage shown in FIG. 12 is performed in a mode in which the operation output is increased by using the high temperature heat stored in the previous heat storage operation to perform snow melting on the road T. Further, in this water-sprinkling snow melting operation using heat storage, when the situation where snow melting is required continues even after the heating water W stored in the water storage tank 33 in the previous heat storage operation is completely consumed, the water W collected from the water intake source S is collected. The normal form of the water-sprinkling snow melting operation shown in FIG. 10 that is heated by the heat pump 13 and supplied to the water sprinkler 31 as it is is carried out to melt the road T.
【００７４】〔第５実施形態〕図１３は請求項６に係る
発明を適用した散水式融雪設備を示し、４１は融雪対象
箇所である道路Ｔに対して多数の散水ノズル４１ａから
水Ｗ′を散水することで道路Ｔの融雪を行なう散水装
置、４２はその散水装置４１に供給する散水用水Ｗを加
熱する熱源ユニットである。[Fifth Embodiment] FIG. 13 shows a sprinkler type snow melting facility to which the invention according to claim 6 is applied. Reference numeral 41 denotes water W'from a large number of sprinkler nozzles 41a for a road T which is a target of snow melting. A water sprinkler device that melts snow on the road T by sprinkling water is a heat source unit 42 that heats the water W for sprinkling supplied to the water sprinkler device 41.
【００７５】熱源ユニット４２にはヒートポンプ４３及
び給水ポンプ４４を装備してあり、ヒートポンプ４３に
は圧縮機４３ａ、膨張弁４３ｂ、出力側熱交換器４３
ｃ、熱源側熱交換器４３ｄを主要構成品として冷媒回路
４３ｒを形成した蒸気圧縮式のヒートポンプを用いてい
る。The heat source unit 42 is equipped with a heat pump 43 and a water supply pump 44, and the heat pump 43 has a compressor 43a, an expansion valve 43b and an output side heat exchanger 43.
c, a vapor compression heat pump in which a refrigerant circuit 43r is formed by using the heat source side heat exchanger 43d as a main component is used.
【００７６】４５は取水源Ｓから水Ｗを採取してその採
取水Ｗをヒートポンプ４３の出力側熱交換器４３ｃに送
る取水路であり、４６は出力側熱交換器４３ｃにおいて
冷媒Ｒと熱交換した後、出力側熱交換器４３ｃから送出
される採取水Ｗ′を散水用水として散水装置４１に供給
する給水路である。Reference numeral 45 is an intake passage for collecting the water W from the intake source S and sending the collected water W to the output side heat exchanger 43c of the heat pump 43, and 46 is for exchanging heat with the refrigerant R in the output side heat exchanger 43c. After that, it is a water supply channel for supplying the sampled water W ′ sent from the output side heat exchanger 43 c to the water sprinkling device 41 as water for sprinkling.
【００７７】また、４５Ａは取水源Ｓからの採取水Ｗの
一部Ｗ″を取水路４５から分流してヒートポンプ４３の
熱源側熱交換器４３ｄに送る分流路であり、４７は熱源
側熱交換器４３ｄにおいて冷媒Ｒと熱交換した後、熱源
側熱交換器４３ｄから送出される採取水Ｗ″を取水源Ｓ
に戻す還水路である。Reference numeral 45A denotes a flow passage for dividing a part W ″ of the water W collected from the water intake source S into the heat source side heat exchanger 43d of the heat pump 43 by dividing it from the water passage 45, and 47 denotes the heat source side heat exchange. After exchanging heat with the refrigerant R in the container 43d, the sampled water W ″ sent from the heat source side heat exchanger 43d is connected to the water source S.
It is a return channel to return to.
【００７８】ヒートポンプ４３は冷媒Ｒを圧縮機４３ａ
−出力側熱交換器４３ｃ−膨張弁４３ｂ−熱源側熱交換
器４３ｄ−圧縮機４３ａの順に循環させるものであり、
このヒートポンプ４３の運転により、熱源側熱交換器４
３ｄを蒸発器として熱源側熱交換器４３ｄの器内通過水
Ｗ″に対し吸熱作用させるとともに、出力側熱交換器４
３ｃを凝縮器として出力側熱交換器４３ｃの器内通過水
Ｗ′に対し放熱作用（加熱作用）させる。The heat pump 43 transfers the refrigerant R to the compressor 43a.
The output side heat exchanger 43c, the expansion valve 43b, the heat source side heat exchanger 43d, and the compressor 43a.
By operating this heat pump 43, the heat source side heat exchanger 4
3d is used as an evaporator for absorbing heat in the passing water W ″ of the heat source side heat exchanger 43d, and at the same time, for the output side heat exchanger 4
3c is used as a condenser to radiate (heat) the passing water W'in the output side heat exchanger 43c.
【００７９】つまり、この融雪設備では、融雪の必要時
に給水ポンプ４４の運転下においてヒートポンプ４３を
運転することにより、取水源Ｓからの採取水Ｗのうち散
水装置４１に供給せずに取水源Ｓに戻す一部の水Ｗ″の
保有熱を熱源側熱交換器４３ｄにおいて採取する形態
で、その一部の戻し採取水Ｗ″を熱源としてヒートポン
プ４３に温熱を発生させ、その発生温熱により出力側熱
交換器４３ｃにおいて散水装置４１に対する取水源Ｓか
らの供給水Ｗ′を加熱して、この加熱水Ｗ′を道路Ｔに
散水する散水融雪運転を実施する。In other words, in this snow melting facility, the heat pump 43 is operated under the operation of the water supply pump 44 when snow melting is required, so that the water S extracted from the water intake S is not supplied to the sprinkler 41, but the water intake S A part of the returned water W ″ is used as a heat source to generate heat in the heat pump 43, and the generated heat is generated on the output side. In the heat exchanger 43c, the water supply W'from the water intake source S to the water sprinkler 41 is heated, and the heated water W'is sprinkled on the road T to carry out the sprinkling snow melting operation.
【００８０】〔別の実施形態〕次に別実施形態を列記す
る。[Other Embodiments] Next, other embodiments will be listed.
【００８１】前述の各実施形態では、ヒートポンプによ
り加熱した水Ｗを散水することだけで融雪を行なうよう
にしたが、融雪対象箇所Ｔに散水手段と融雪用の放熱管
とを設置しておき、ヒートポンプで加熱した水Ｗを先ず
放熱管に通水して無散水式融雪を行ない、そして、その
放熱管で保有熱の一部を放熱させた水Ｗを散水手段によ
り融雪対象箇所Ｔに散水するようにしてもよく、この場
合、放熱管通過により温度低下した水Ｗを散水すること
から、ヒートポンプでの水加熱温度を高くして放熱管に
よる無散水式融雪と散水式融雪とを合わせた全体として
の融雪能力を高くしながらも散水に伴う湯気の発生を抑
止することができ、そのことで取水量の少量化を一層効
果的に達成することができる。In each of the above-described embodiments, the snow is melted only by sprinkling the water W heated by the heat pump, but the sprinkling means and the heat radiating pipe for snow melting are installed at the snow melting target portion T. Water W heated by a heat pump is first passed through a heat radiating pipe to perform non-sprinkling type snow melting, and then water W in which a part of the retained heat is radiated by the heat radiating pipe is sprayed to a snow melting target point T by a water sprinkling means. In this case, since the water W whose temperature has dropped due to passage through the heat dissipation pipe is sprayed, the water heating temperature in the heat pump is raised to increase the total amount of non-sprinkling type snow melting and water spraying type melting by the heat dissipation pipe. It is possible to suppress the generation of steam associated with water sprinkling while increasing the snow melting ability as described above, and thus it is possible to more effectively reduce the amount of water intake.
【００８２】請求項１に係る発明の実施において、散水
手段には前述の各実施形態で示した散水装置に限らず、
種々の散水方式及び種々の構造のものを採用でき、例え
ば、ヒートポンプにより加熱した水Ｗを融雪対象箇所Ｔ
に対しノズルなどから飛散形態で散水する方式に代え、
ヒートポンプにより加熱した水Ｗを透水性の舗装路面か
らにじみ出させる形態で融雪対象箇所Ｔに散水する方式
（いわゆる、にじみ出し消雪方式）を採るなどしてもよ
い。また、取水源Ｓからの採取水Ｗを加熱するヒートポ
ンプにも、前述の各実施形態で示した如き構成のものに
限らず、種々の方式及び種々の回路構造のものを採用で
きる。In the practice of the invention according to claim 1, the sprinkling means is not limited to the sprinklers shown in the above-mentioned embodiments,
Various sprinkling methods and various structures can be adopted. For example, water W heated by a heat pump is used to melt snow at a target site T.
On the other hand, instead of the method of spraying water from the nozzle etc.,
A method of spraying the water W heated by the heat pump onto the snow melting target portion T in a form of bleeding from the water-permeable paved road surface (so-called bleed-out snow erasing method) may be adopted. Further, the heat pump for heating the sampled water W from the water intake source S is not limited to the configuration as shown in each of the above-mentioned embodiments, but various types and various circuit structures can be adopted.
【００８３】請求項２に係る発明の実施において、蓄熱
運転時にヒートポンプの発生温熱を蓄熱する蓄熱手段
は、第３実施形態で示した如き貯留熱媒Ｌを昇温させて
蓄熱する顕熱蓄熱式の蓄熱槽２３に限らず、潜熱蓄熱式
のものであってもよく、また、その構造も第３実施形態
で示した如き構造に限らず、地上設置型や地下設置型に
おいて種々の構造変更が可能である。In the implementation of the invention according to claim 2, the heat storage means for storing the generated heat of the heat pump during the heat storage operation is a sensible heat storage type for heating the stored heat medium L as shown in the third embodiment to store the heat. Not only the heat storage tank 23, but also a latent heat storage type may be used, and the structure thereof is not limited to the structure shown in the third embodiment, and various structural changes may be made in the above-ground installation type or underground installation type. It is possible.
【００８４】請求項３に係る発明の実施において、地中
熱交換器３は第１実施形態で示した如きＵ字管状のもの
に限らず、内管の内部を熱媒Ｌの往路（又は復路）と
し、かつ、内管とそれを囲む外管との間を熱媒Ｌの復路
（又は往路）とする二重管状のものなど、どのような構
造のものであってもよい。In the practice of the invention according to claim 3, the underground heat exchanger 3 is not limited to the U-shaped tubular one as shown in the first embodiment, but the inside of the inner pipe may be the forward path (or the return path) of the heating medium L. ) And a double tubular structure in which the return path (or the outward path) of the heat medium L is defined between the inner tube and the outer tube surrounding the inner tube.
【００８５】請求項４に係る発明の実施において、蓄熱
運転でヒートポンプにより加熱した水Ｗを貯留する貯水
槽３３は、地上設置型あるいは地下設置型のいずれであ
ってもよく、また、その構造も第４実施形態で示した構
造に限らず、種々の構造変更が可能である。In the practice of the invention according to claim 4, the water storage tank 33 for storing the water W heated by the heat pump in the heat storage operation may be either a ground installation type or an underground installation type, and its structure is also The structure is not limited to the structure shown in the fourth embodiment, and various structure changes are possible.
【００８６】請求項５に係る発明の実施において、取水
井１６から水Ｗを採取するポンプ１４は第２実施形態で
示した如き地上配置のポンプに限られるものではなく、
取水井１６において水中に浸漬配置する水中ポンプであ
ってもよい。In the practice of the invention according to claim 5, the pump 14 for collecting the water W from the intake well 16 is not limited to the above-grounded pump as shown in the second embodiment.
It may be a submersible pump that is immersed in water in the intake well 16.
【００８７】請求項６に係る発明の実施において、取水
源Ｓから採取した水Ｗのうち散水に供するものＷ′とヒ
ートポンプの熱源とするものＷ″との水量比は、取水条
件や融雪条件などに応じて決定すればよく、また、その
水量比を取水条件や融雪条件の変化に応じて自動的に変
更するようにしてもよい。In the practice of the invention according to claim 6, among the water W collected from the water intake source S, the water amount ratio between the water W to be sprinkled and the water source W ″ to be used as the heat source of the heat pump is such as water intake conditions or snow melting conditions. The water amount ratio may be automatically changed according to changes in water conditions or snow melting conditions.
【００８８】各請求項に係る発明の実施において、融雪
対象箇所Ｔは道路に限られるものではなく、広場や駐車
場など、どのような用途の箇所であってもよい。また、
本発明において言う融雪とは、道路などでの水の氷結を
防止する所謂凍結防止を含む広義のものである。In the practice of the invention according to each claim, the snow melting target location T is not limited to a road, but may be a location for any purpose such as a plaza or a parking lot. Also,
The term “snow melting” as used in the present invention has a broad meaning including so-called freezing prevention for preventing freezing of water on a road or the like.
【図１】第１実施形態における融雪設備の設備外観図FIG. 1 is an equipment external view of a snow melting facility according to a first embodiment.
【図２】第１実施形態における融雪設備の散水融雪運転
状態を示す回路図FIG. 2 is a circuit diagram showing a sprinkling snow melting operation state of the snow melting facility in the first embodiment.
【図３】第１実施形態における融雪設備の蓄熱運転状態
を示す回路図FIG. 3 is a circuit diagram showing a heat storage operation state of the snow melting facility in the first embodiment.
【図４】第２実施形態における融雪設備の設備外観図FIG. 4 is an equipment external view of a snow melting equipment according to a second embodiment.
【図５】第２実施形態における融雪設備の散水融雪運転
状態を示す回路図FIG. 5 is a circuit diagram showing a sprinkling snow melting operation state of a snow melting facility according to a second embodiment.
【図６】第２実施形態における融雪設備の蓄熱運転状態
を示す回路図FIG. 6 is a circuit diagram showing a heat storage operation state of the snow melting facility in the second embodiment.
【図７】第３実施形態における融雪設備の蓄熱利用の散
水融雪運転状態を示す回路図FIG. 7 is a circuit diagram showing a sprinkling snow melting operation state using heat storage of a snow melting facility in a third embodiment.
【図８】第３実施形態における融雪設備の通常形態の散
水融雪運転状態を示す回路図FIG. 8 is a circuit diagram showing a normal form of water spraying and melting operation of the snow melting facility in the third embodiment.
【図９】第３実施形態における融雪設備の蓄熱運転状態
を示す回路図FIG. 9 is a circuit diagram showing a heat storage operation state of a snow melting facility according to a third embodiment.
【図１０】第４実施形態における融雪設備の通常形態の
散水融雪運転状態を示す回路図FIG. 10 is a circuit diagram showing a normal form of water spraying and melting operation of the snow melting facility in the fourth embodiment.
【図１１】第４実施形態における融雪設備の蓄熱運転状
態を示す回路図FIG. 11 is a circuit diagram showing a heat storage operation state of the snow melting facility in the fourth embodiment.
【図１２】第４実施形態における融雪設備の蓄熱利用の
散水融雪運転状態を示す回路図FIG. 12 is a circuit diagram showing a water-sprinkling and snow-melting operation state using heat storage of a snow-melting facility in a fourth embodiment.
【図１３】第５実施形態における融雪設備の散水融雪運
転状態を示す回路図FIG. 13 is a circuit diagram showing a sprinkling snow melting operation state of a snow melting facility according to a fifth embodiment.
１ 散水手段 ３ 地中熱交換器 ４ ヒートポンプ １１ 散水手段 １３ ヒートポンプ １６ 取水井 ２１ 散水手段 ２３ 蓄熱手段 ２４ ヒートポンプ ３１ 散水手段 ３３ 貯水槽 ３４ ヒートポンプ ４１ 散水手段 ４３ ヒートポンプ Ｇ 地中 Ｓ 取水源 Ｔ 融雪対象箇所 Ｗ 採取水 Ｗ′ 散水に供する水 Ｗ″ ヒートポンプの熱源にする水 1 sprinkling means 3 underground heat exchanger 4 heat pump 11 Watering means 13 heat pump 16 Intake well 21 Watering means 23 Heat storage means 24 heat pump 31 Watering means 33 water tank 34 heat pump 41 Watering means 43 heat pump G underground S Water source Target of snow melting W sampling water W'Water used for watering W ″ Water used as heat source for heat pump
Claims (6)
して融雪対象箇所に散水することで融雪対象箇所の融雪
を行なう散水式融雪設備であって、 前記散水手段に対する前記取水源からの供給水をヒート
ポンプにより加熱する構成にしてある散水式融雪設備。1. A water-sprinkling type snow melting facility for melting snow at a snow-melting target site by supplying water collected from a water intake source to a water-sprinking unit to spray water to the snow-melting target site. A water-sprinkling type snow melting facility configured to heat supply water with a heat pump.
段に供給せずに排出する水を熱源として前記ヒートポン
プに温熱を発生させて、その発生温熱を蓄熱手段に蓄熱
する蓄熱運転と、 前記蓄熱手段に蓄熱した熱を熱源として前記ヒートポン
プに温熱を発生させて、その発生温熱により前記散水手
段に対する前記取水源からの供給水を加熱する蓄熱利用
の散水融雪運転との切り換えが可能な構成にしてある請
求項１記載の散水式融雪設備。2. A heat storage operation of causing the heat pump to generate warm heat using water discharged without being supplied to the water sprinkling means as a heat source after collecting from the water intake source, and storing the generated warm heat in the heat storage means, The heat stored in the heat storage means is used as a heat source to generate warm heat in the heat pump, and the generated hot heat heats the supply water from the water intake source to the sprinkling means to switch to the water-sprinkling snow melting operation using heat storage. The sprinkler type snow melting equipment according to claim 1.
地中熱を熱源として前記ヒートポンプに温熱を発生させ
て、その発生温熱により前記散水手段に対する前記取水
源からの供給水を加熱する地中熱利用の散水融雪運転
と、 前記取水源から採取した後、前記散水手段に供給せずに
排出する水を熱源として前記ヒートポンプに温熱を発生
させて、その発生温熱を前記地中熱交換器からの放熱に
より地中へ蓄熱する地中蓄熱運転との切り換えが可能な
構成にしてある請求項１記載の散水式融雪設備。3. Heat is generated in the heat pump by using the underground heat collected by the underground heat exchanger buried in the ground as a heat source, and the generated heat heats the supply water from the water intake source to the sprinkling means. Sprinkling snow melting operation using geothermal heat, and after collecting water from the water intake source, generate heat in the heat pump using the water discharged without being supplied to the water sprinkling means as a heat source, and generate the generated heat into the geothermal heat. The sprinkler type snow melting equipment according to claim 1, which is configured to be capable of switching to an underground heat storage operation in which heat is stored in the ground by heat radiation from an exchanger.
ポンプにより加熱して貯水槽に貯留する蓄熱運転と、 前記貯水槽の貯留水を前記ヒートポンプにより加熱して
前記散水手段に供給する蓄熱利用の散水融雪運転との切
り換えが可能な構成にしてある請求項１記載の散水式融
雪設備。4. A heat storage operation of heating water collected from the water intake source by the heat pump to store it in a water storage tank, and a heat storage use of heating the water stored in the water storage tank by the heat pump to supply it to the water sprinkling means. The water-sprinkling type snow melting facility according to claim 1, wherein the water-spraying and snow-melting operation can be switched to a snow-melting operation.
水を前記ヒートポンプにより加熱して前記散水手段に供
給する散水融雪運転と、 その取水井から採取した水を前記ヒートポンプにより加
熱した後、前記散水手段に供給せずに再び取水井に戻す
取水井蓄熱運転との切り換えが可能な構成にしてある請
求項１記載の散水式融雪設備。5. A water-sprinkling and melting operation in which water collected from an intake well as the intake source is heated by the heat pump and supplied to the water spraying means, and water collected from the intake well is heated by the heat pump, 2. The sprinkler type snow melting equipment according to claim 1, wherein the water sprinkling type snow melting equipment is configured so as to be capable of being switched to a heat storage operation of an intake well which is returned to the intake well without being supplied to the sprinkling means.
を前記散水手段に供給するのに伴い、前記取水源から採
取した水のうち前記散水手段に供給せずに排出する他部
の水を熱源として前記ヒートポンプに温熱を発生させ
て、その発生温熱により前記散水手段に対する前記取水
源からの供給水を加熱する構成にしてある請求項１記載
の散水式融雪設備。6. Along with supplying a part of the water collected from the water intake source to the water sprinkling means, another part of the water collected from the water intake source that is not supplied to the water sprinkling means is discharged. 2. The sprinkler type snow melting equipment according to claim 1, wherein warm water is used as a heat source to generate heat in the heat pump, and the generated heat heats the water supplied from the water intake source to the water spraying means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002138664A JP2003328332A (en) | 2002-05-14 | 2002-05-14 | Sprinkler type snow melting facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002138664A JP2003328332A (en) | 2002-05-14 | 2002-05-14 | Sprinkler type snow melting facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003328332A true JP2003328332A (en) | 2003-11-19 |
Family
ID=29700045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002138664A Pending JP2003328332A (en) | 2002-05-14 | 2002-05-14 | Sprinkler type snow melting facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003328332A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008025904A (en) * | 2006-07-20 | 2008-02-07 | Daikin Ind Ltd | Heat pump device |
| KR101445349B1 (en) * | 2013-10-22 | 2014-11-03 | 부경대학교 산학협력단 | Heat storage system by heat pipe |
| CN105951649A (en) * | 2016-06-15 | 2016-09-21 | 高子悦 | Multifunctional road surface cleaning, cooling and snow melting system |
| CN114687315A (en) * | 2022-04-19 | 2022-07-01 | 玺大建设工程有限公司 | Unmanned snow removing station for expressway intercommunication ramp |
-
2002
- 2002-05-14 JP JP2002138664A patent/JP2003328332A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008025904A (en) * | 2006-07-20 | 2008-02-07 | Daikin Ind Ltd | Heat pump device |
| KR101445349B1 (en) * | 2013-10-22 | 2014-11-03 | 부경대학교 산학협력단 | Heat storage system by heat pipe |
| CN105951649A (en) * | 2016-06-15 | 2016-09-21 | 高子悦 | Multifunctional road surface cleaning, cooling and snow melting system |
| CN105951649B (en) * | 2016-06-15 | 2018-03-13 | 高子悦 | A kind of multifunction road cleaning cooling and snow-melting system |
| CN114687315A (en) * | 2022-04-19 | 2022-07-01 | 玺大建设工程有限公司 | Unmanned snow removing station for expressway intercommunication ramp |
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