JPS60205140A - Room cooler or refrigerating device - Google Patents
Room cooler or refrigerating deviceInfo
- Publication number
- JPS60205140A JPS60205140A JP6091384A JP6091384A JPS60205140A JP S60205140 A JPS60205140 A JP S60205140A JP 6091384 A JP6091384 A JP 6091384A JP 6091384 A JP6091384 A JP 6091384A JP S60205140 A JPS60205140 A JP S60205140A
- Authority
- JP
- Japan
- Prior art keywords
- snow
- storage tank
- cooling
- heat exchanger
- snow storage
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、貯雪またはその融雪水を冷熱交換媒体とする
冷房または冷凍装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling or freezing system that uses stored snow or snowmelt water as a cold heat exchange medium.
生来、生野菜叫の食品を貯蔵させる従来の保冷庫は、原
動機を駆動源とする冷凍機を使用して庫内を保冷するも
のが一般的で、設備員、維持費の嵩むものとなっている
。Conventional cold storage refrigerators that store foods that require raw vegetables generally use a refrigerator driven by a motor to keep the inside cool, which requires high equipment and maintenance costs. There is.
本発明は、降雪地域において多量の積雪があることに着
目し、降雪季に降った雪を貯雪槽に貯溜させ、非降雪季
にとの貯雪を熱交換器の冷熱交換媒体として活用するこ
とにより、設備費、維持費の共に安価な冷房または冷凍
装置を提供することを目的としている。The present invention focuses on the fact that there is a large amount of snow in snowy regions, and stores snow that falls during the snowy season in a snow storage tank, and utilizes the snow stored during the non-snowy season as a cold heat exchange medium in a heat exchanger. The objective is to provide a cooling or refrigeration system that is low in both equipment cost and maintenance cost.
以下、本発明について図示の実施例を参照して説明する
。The present invention will be described below with reference to illustrated embodiments.
第１．２図は、本発明の一実施例を示す図である。図中
において符号１＃−ｊ：雪を貯溜させる貯雪槽で、切盛
土構造にて形成した空間１ａの所要個所、底面および側
面の全部または一部をコンクＩＪ −） １ ｂにて補
強させて形成され、北側の山腹、山麓等の利用価値に乏
しい遊休地に簡単な土木工事を施して形成される。２け
傾斜させて配置され、下端縁部を貯雪槽ｌに臨ませた滑
雪板で、貯雪槽１の山側の傾斜地を利用して傾斜配置さ
せ、積った雪が自重にて貯雪槽１に落下するように傾斜
角度を設定する。積雪を自然落下させるには、滑雪板２
の傾斜角度を少なくとも約４０°に設定する必要がある
ため、この傾斜角度の確保が困難な場合には、滑雪板２
の適当個所に散水口３を穿設し、滑雪板２の裏側に配設
した配管４よシ適宜に流水を供給して滑雪を促すことが
できる。滑雪板２の下縁に沿って設けた長溝５は、雨水
排水溝で、非降雪季に滑雪板２を流下する雨水が貯雪槽
ｌへ流入するのを阻止する作用を有し、降雪季には蓋板
６にて覆って滑雪を阻害させないようにすることが望ま
しい。FIG. 1.2 is a diagram showing an embodiment of the present invention. In the figure, reference numeral 1#-j is a snow storage tank for storing snow, and all or part of the bottom and sides of the space 1a formed by the cut-and-fill structure is reinforced with concrete IJ-) 1b. It was formed by carrying out simple civil engineering work on idle land with little utility value, such as the northern side of the mountain or the foot of the mountain. The snow sliding board is arranged at an angle of 2 degrees and has its lower edge facing the snow storage tank 1.It is arranged at an angle using the slope on the mountain side of the snow storage tank 1, and the accumulated snow falls into the snow storage tank 1 under its own weight. Set the tilt angle as follows. To let snow fall naturally, use snow sliding board 2.
It is necessary to set the inclination angle of the snow sliding board 2 to at least about 40°, so if it is difficult to secure this inclination angle,
A water sprinkling port 3 is drilled at an appropriate location, and running water can be appropriately supplied through a pipe 4 arranged on the back side of the snow sliding board 2 to promote snow sliding. The long groove 5 provided along the lower edge of the snow sliding board 2 is a rainwater drainage channel, and has the function of preventing rainwater flowing down the snow sliding board 2 from flowing into the snow storage tank l during the non-snowing season. It is desirable to cover it with a board 6 so as not to impede snow sliding.
そして、貯雪１ｆｐ４１の底部には、暗渠７に接続され
、排泥弁８にて開閉操作し得る排泥口９を設けると共に
、支柱１０にて支持させた熱交換器１１を配設する。こ
の実施例にあっては、熱交換器】１はうず巻状の管体１
２よシなシ、管体１２内を流通する空気が管体１２外局
面に接触する貯雪または貯雪と融雪水の混合体にて冷却
されるように々っている。しかして、該管体ｆｆ２の一
端は空気取入用の配ｖｘ３に接続され、他端は冷風排出
用の配管１４に接続される。空気取入用の配管１３は、
図外のフィルタを介して保冷庫、予冷庫等の冷房室の外
部に開口させて新鮮な外気を取入れ、或は冷房室内に開
口させて冷房室内の冷風を循環使用することができる。Further, at the bottom of the snow storage 1fp41, a mud draining port 9 is provided which is connected to the underdrain 7 and can be opened and closed by a mud draining valve 8, and a heat exchanger 11 supported by struts 10 is disposed. In this embodiment, the heat exchanger 1 is a spiral tube body 1.
Second, the air flowing through the tube body 12 is cooled by accumulated snow or a mixture of accumulated snow and snowmelt water that comes into contact with the outer surface of the tube body 12. One end of the pipe body ff2 is connected to the air intake pipe vx3, and the other end is connected to the cold air discharge pipe 14. The air intake pipe 13 is
Through a filter (not shown), an opening can be made to the outside of a cooling room such as a cold storage box or a pre-cooling box to take in fresh outside air, or an opening can be opened into the cooling room to circulate the cold air inside the cooling room.
冷風排出用の配管１４は、送風様１５、図外の吹出口を
介して冷房室に開口させる。The pipe 14 for discharging cold air opens into the cooling room through a blower 15 and an outlet (not shown).
また、貯雪槽ｌには熱交換器１１と接触して融雪した融
雪水が一定の水位にまで貯溜され、熱交換器１１の冷熱
交換媒体が貯雪と融雪水との混合体となることが熱伝達
率を向上させる上で望ましい。このため、水位調節手段
として、熱交換器１１よシ上方位置となる貯雪槽１の側
壁に溢水口１６を設け、熱交換器１１を貯雪とその融雪
水との混合体に浸漬させるようにし、熱交換器１１が粉
状または粒状の貯雪と接触する場合に比較して、冷熱伝
達の効率を高めるようになっている。In addition, snow melt water that has melted snow in contact with the heat exchanger 11 is stored in the snow storage tank l up to a certain level, and the cold heat exchange medium of the heat exchanger 11 becomes a mixture of snow storage and snow melt water. Desirable for improving transmissibility. Therefore, as a water level adjustment means, a water overflow port 16 is provided in the side wall of the snow storage tank 1 located above the heat exchanger 11, so that the heat exchanger 11 is immersed in a mixture of snow storage and snowmelt water. Compared to the case where the heat exchanger 11 comes into contact with powdered or granular snow, the efficiency of cold heat transfer is increased.
蕗２図に示す１７は貯雪槽１の上面を覆う着脱可能な蓋
体で、非降雪季の貯雪の溶融防止作用を有し、降雪季に
は取外して貯雪槽１への直接の降雪を与えると共に、滑
雪板２よシの積雪の落下を妨げないようにする。非降雪
季において貯雪の溶融を助長する要素は、太陽光、外気
および雨水である。従って、蓋体１７の外面は、例えば
アルミ蒸着樹脂フィルム等の太陽光線を反射させる膜体
１７ａとし、内面は例えば独立気泡の樹脂膜、防水加工
を施した保温材岬の断熱材層１７ｂとして貯雪槽１の上
面全面を覆うようにする。このような蓋体１７け可撓性
を有するので、貯雪の溶融に伴う体積変化に追従して貯
雪の上面を常に覆うこととなシ、貯雪槽Ｊ内への外気の
侵入を防止することと相俟って、貯雪の溶融防止を効果
的に行表うことができる。17 shown in Fig. 2 is a removable lid that covers the top surface of the snow storage tank 1, and has the function of preventing melting of stored snow during the non-snowy season, and is removed during the snowy season to allow snow to fall directly into the snow storage tank 1. At the same time, the falling snow from the snow sliding board 2 is not obstructed. The elements that promote the melting of stored snow during the non-snowy season are sunlight, outside air, and rainwater. Therefore, the outer surface of the lid 17 is made of a membrane 17a that reflects sunlight, such as an aluminum vapor-deposited resin film, and the inner surface is made of a closed-cell resin film or a heat-insulating layer 17b of a waterproof heat-insulating cape for snow storage. Make sure to cover the entire top surface of tank 1. Since the lid body 17 has such flexibility, it does not always cover the top surface of the snow storage by following the volume change caused by the melting of the snow storage tank, and prevents outside air from entering into the snow storage tank J. In combination, it is possible to effectively prevent stored snow from melting.
なお、第３図（ａ） Ｉ （ｂ）に示すように滑雪板２
に傾斜方向に延在する数条のピード２ａを形成すること
によシ、滑雪板２の剛性を向上させることができ、かつ
積雪は該ピード２ａに案内されつつ貯雪槽１に向けて滑
雪することとなｐ１貯雪槽１への貯雪を促すこととなる
。この場合、散水口３は滑雪板２の谷部に設ける方が積
雪と滑雪板２との間の摩擦の減少に役立つ。In addition, as shown in Fig. 3(a) I(b), the snow sliding board 2
By forming several peaches 2a extending in the inclination direction, the rigidity of the snow sliding plate 2 can be improved, and the snow can slide toward the snow storage tank 1 while being guided by the peades 2a. This will encourage snow storage in Tona p1 snow storage tank 1. In this case, providing the water sprinkling ports 3 in the troughs of the snow sliding board 2 helps reduce friction between the snow and the snow sliding board 2.
以上の説明から理解されるように、降雪季においては蓋
体１７を取外すこと罠よシ、貯雪槽１に直接積雪を生ず
ると共に、滑雪板２への積雪は落下して貯雪槽１に貯雪
される。非降雪季においては、貯雪槽ｌを蓋体１７にて
覆った状態にて送風機１５を駆動させることにより、空
気取入用の配ＩＦ１３よシ導入された空気は、貯雪また
はその融雪水を冷熱交換媒体として熱交換器１１にで冷
却され、冷風となって冷風排出用の配管１４を通じて冷
房室に供給される。As can be understood from the above explanation, it is unnecessary to remove the lid 17 during the snowy season, and snow will accumulate directly in the snow storage tank 1, and the snow accumulated on the snow sliding board 2 will fall and be stored in the snow storage tank 1. . In the non-snowing season, by driving the blower 15 with the snow storage tank l covered with the lid 17, the air introduced through the air intake IF 13 cools the snow storage or melted snow water. It is cooled by a heat exchanger 11 as an exchange medium, becomes cold air, and is supplied to the cooling room through a pipe 14 for discharging cold air.
第４図は前記実施例を具体化させた特許請求の範囲第２
項に記載の発明の実施例を概念的に示すもので、１は貯
雪槽、２は滑雪板、７は暗渠、９は排泥口、１１は熱交
換器％ １３は空気取入用の配管、】４は冷風排出用の
配管である。FIG. 4 shows the second claim embodying the above embodiment.
This figure conceptually shows an embodiment of the invention described in section 1, in which 1 is a snow storage tank, 2 is a snow sliding board, 7 is an underdrain, 9 is a mud drain, 11 is a heat exchanger, 13 is an air intake pipe, ] 4 is a pipe for discharging cold air.
そして、冷風排出用の配管】４は冷房室１８に接続され
、冷房室１８には送風機１９を備えた排気管２０が接続
されている。２１は冷風排出用の配管１４に一端を接続
され、他端を外気に開口させる外気取入用の配管で、電
磁開閉弁２２を備え、排気管２０に設けた冷房室１８の
案内温度検出器２３からの指示によシ、該開閉弁２２を
開閉操作させるようにシっている。A pipe 4 for discharging cold air is connected to a cooling chamber 18, and an exhaust pipe 20 equipped with a blower 19 is connected to the cooling chamber 18. Reference numeral 21 denotes an outside air intake pipe whose one end is connected to the cold air exhaust pipe 14 and whose other end is open to the outside air, and is equipped with an electromagnetic on-off valve 22 and a guide temperature sensor for the cooling room 18 provided in the exhaust pipe 20. According to instructions from 23, the on-off valve 22 is opened and closed.
非降雪季においては、送風機１９の駆動により空気取入
用の配管１３よシ外気が吸込まれ、該外気は降雪季に予
め貯雪された貯雪槽１へ導入され、熱交換器１１にて冷
却されて冷風となって冷風排出用の配管１４を経て冷房
室１８に供給され、送風機１９によシ排出される冷房室
１８内の空気と置換されて冷房に供される。この作用は
、前記実施例と実質的に同一である。In the non-snowing season, outside air is sucked in through the air intake pipe 13 by the drive of the blower 19, and this outside air is introduced into the snow storage tank 1 in which snow is stored in advance during the snowing season, and is cooled by the heat exchanger 11. The cooled air is supplied to the cooling room 18 via the pipe 14 for discharging cold air, and is replaced with the air in the cooling room 18 discharged by the blower 19 for cooling. This operation is substantially the same as in the previous embodiment.
冷房室１８内の温度は、送風機１９による送風量の加減
によって調節することができるが。The temperature inside the cooling room 18 can be adjusted by adjusting the amount of air blown by the blower 19.
冷房室１８内を短時間で昇温させる必要のある場合には
、室内温度検出器２３の指示に応じて電磁開閉弁２２を
開き、外気取入用の配管２１より比較的高温の外気を導
入させ、冷風排出用の配管】４よシ供給される冷風と混
合させて冷房室１８へ供給させる。冷房室１８の室温が
所定温度に達したなら４室内温度検出器２３からの指示
により、電磁開閉弁２２＃′ｉ閉基される。When it is necessary to raise the temperature inside the cooling room 18 in a short time, the electromagnetic on-off valve 22 is opened in response to the instruction from the indoor temperature detector 23, and relatively high temperature outside air is introduced through the outside air intake pipe 21. The cold air is mixed with the cold air supplied from step 4 and supplied to the cooling room 18. When the room temperature of the cooling room 18 reaches a predetermined temperature, the electromagnetic on-off valve 22#'i is closed in response to an instruction from the four room temperature detectors 23.
このように、本実施例によれば冷房室１８の温度調節を
速やかかつ適正に行なうことができる。In this way, according to this embodiment, the temperature of the cooling room 18 can be adjusted quickly and appropriately.
ところで、上記各実施例にあっては、熱交換器１１にて
空気を冷却させたが、貯電またはその融雪水よりなる冷
熱交換媒体によって冷却される二次冷媒として塩類の水
溶液等のプラインを用い、該シラインと冷房室内の空気
とを更に図外の熱交換器にて熱交換させて冷房室内を冷
房することができる。Incidentally, in each of the above embodiments, the air is cooled by the heat exchanger 11, but prine such as an aqueous solution of salts may be used as a secondary refrigerant to be cooled by a cold heat exchange medium made of stored electricity or snowmelt water. The interior of the cooling room can be cooled by exchanging heat between the si-line and the air in the cooling room using a heat exchanger (not shown).
また、貯雪またはその融雪水との混合体に外部よシ寒剤
を注入させることにより、本装置を冷凍装置として使用
することが可能である。Furthermore, by injecting an external cooling agent into the snow storage or its mixture with snowmelt water, the present device can be used as a freezing device.
以上説明したように、本発明は上記構成としたため、下
記の効果が得られる。As explained above, since the present invention has the above configuration, the following effects can be obtained.
（１１熱交換器の冷熱交換媒体としてｌ Ｋｙ当たシ約
８０ Ｋｃａｌの冷熱を保有する貯雪またはその＃１雪
水を活用するため、冷凍機を用いる冷房または冷凍装置
に比して大幅な省エネルギを図ることができ、予冷、保
冷、地域冷房等の冷房または冷凍に要する費用が著しく
低減する。(11 Because the heat exchanger utilizes snow or its #1 snow water, which has a cold energy of approximately 80 Kcal per 1 Ky, as a cold heat exchange medium, there is a significant saving compared to air conditioning or refrigeration equipment that uses a refrigerator. Energy can be saved, and the cost required for cooling or freezing, such as precooling, cold storage, and district cooling, can be significantly reduced.
（２） 冷房または冷凍装置としての構造が単純であシ
、設備の維持管理が容易である。(2) The structure of the cooling or freezing device is simple, and the maintenance and management of the equipment is easy.
（３） 冷房または冷凍装置の主４！部をなす貯雪槽は
、土木工事にて製作されるため、若干の補修にて長期使
用が可能である。(3) Main unit of cooling or freezing equipment 4! The snow storage tank that forms part of the building is manufactured through civil engineering work, so it can be used for a long time with some minor repairs.
（４） 貯雪槽への貯雪は、滑雪板によって自動的罠な
されるので、貯雪コストひいては冷房または冷凍コスト
が安価となる。(4) Snow storage in the snow storage tank is automatically trapped by the snow sliding board, so the cost of snow storage and, by extension, the cost of cooling or freezing are reduced.
第１図は本発明の一実施例を示す平面図、第２図は第１
図の１１−■線断面図、第３図（ａ）は滑雪板の構造例
を示す要部断面図、第３図（ｂ）は同じく要部平面図、
第４図は他の実施例を示す概念図である、
１：貯雪槽 ２：滑雪板 ７：暗渠 ８：排泥弁 ９：
排泥口 Ｊｌ：熱交換器 １３：空気取入用の配管 １
４：冷風排出用の配管 １６：溢水口 １７：蓋体 １
８：冷房室（冷房または冷凍室）１９：送風機 ２０：
排気管 ２１：外気取入用の配管 ２２：を磁開閉弁（
開閉弁）２３：室内温度検出器
代理人 弁理士 前 １）利 之Fig. 1 is a plan view showing one embodiment of the present invention, and Fig. 2 is a plan view showing an embodiment of the present invention.
11-■ line sectional view in the figure, FIG. 3(a) is a sectional view of the main part showing an example of the structure of the snow sliding board, FIG. 3(b) is a plan view of the main part,
FIG. 4 is a conceptual diagram showing another embodiment. 1: Snow storage tank 2: Snow sliding board 7: Underdrain 8: Sludge valve 9:
Sludge outlet Jl: Heat exchanger 13: Air intake piping 1
4: Piping for cold air discharge 16: Overflow port 17: Lid body 1
8: Cooling room (cooling or freezing room) 19: Blower 20:
Exhaust pipe 21: Piping for outside air intake 22: Magnetic on-off valve (
On-off valve) 23: Indoor temperature detector agent Patent attorney 1) Toshiyuki
Claims (1)
斜させて配備され、下端縁部を貯雪槽に臨ませた滑雪板
と、貯雪槽の上面を開閉可能に覆う蓋体と、貯雪槽の底
部に配置され、貯雪槽に貯溜させた貯雪またはその融雪
水を冷熱交換媒体とする熱交換器とを有することを特徴
とする冷房または冷凍装置。 ２、底部に排泥口を備え、雪を貯溜させる貯雪槽と、傾
斜させて配置され、下端縁部を貯雪槽に臨ませた滑雪板
と、貯雪槽の上面を開閉可能に覆う蓋体と、貯雪槽の底
部に配置され、貯雪槽に貯溜させた貯雪またはその融雪
水を冷熱交換媒体とする熱交換器と、貯雪槽の熱交換器
よシ上方位置となる個壁に設けられた溢水口と、熱交換
器を冷房または冷凍室に接続させる冷風排出用の配管と
、送風機を備え、冷房または冷凍室に接続される排気管
と、冷風排出用の配管に接続される外気取入用の配管と
、外気取入用の配管に装着され、冷房または冷凍室の室
内温度検出器からの指示によシ開閉操作される開閉弁と
を有することを特徴とする冷房または冷凍装置。[Scope of Claims] 1. A snow storage tank with a mud draining port at the bottom for storing snow, a snow sliding plate arranged at an angle with its lower edge facing the snow storage tank, and a top surface of the snow storage tank that can be opened and closed. What is claimed is: 1. A cooling or freezing device comprising: a lid body that covers the snow storage tank; and a heat exchanger that is disposed at the bottom of the snow storage tank and uses stored snow stored in the snow storage tank or its melted snow as a cooling heat exchange medium. 2. A snow storage tank equipped with a mud draining port at the bottom to store snow; a snow sliding plate arranged at an angle with its lower edge facing the snow storage tank; and a lid body that covers the top surface of the snow storage tank in an openable and closable manner; A heat exchanger that is placed at the bottom of the snow storage tank and uses the snow stored in the snow storage tank or its melted snow as a cold heat exchange medium, and a water overflow port that is installed in the individual wall above the heat exchanger of the snow storage tank. A cold air exhaust pipe that connects the heat exchanger to the cooling or freezing room, an exhaust pipe that is equipped with a blower and is connected to the cooling or freezing room, and an outside air intake pipe that is connected to the cold air exhaust pipe. 1. A cooling or freezing device comprising piping and an on-off valve that is attached to the outside air intake piping and is opened and closed according to instructions from an indoor temperature sensor in the cooling or freezing room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6091384A JPS60205140A (en) | 1984-03-30 | 1984-03-30 | Room cooler or refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6091384A JPS60205140A (en) | 1984-03-30 | 1984-03-30 | Room cooler or refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60205140A true JPS60205140A (en) | 1985-10-16 |
Family
ID=13156092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6091384A Pending JPS60205140A (en) | 1984-03-30 | 1984-03-30 | Room cooler or refrigerating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60205140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002228384A (en) * | 2001-01-31 | 2002-08-14 | Takenaka Komuten Co Ltd | Snow storage tank equipped with heat exchanger |
-
1984
- 1984-03-30 JP JP6091384A patent/JPS60205140A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002228384A (en) * | 2001-01-31 | 2002-08-14 | Takenaka Komuten Co Ltd | Snow storage tank equipped with heat exchanger |
| JP4721206B2 (en) * | 2001-01-31 | 2011-07-13 | 株式会社竹中工務店 | Snow storage tank with heat exchanger |
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