ICE RINK REFRIGERATION FACILITY AND REFRIGERATION METHOD

PROBLEM TO BE SOLVED: To provide ice rink refrigeration facility and refrigeration method in which a pump power is reduced and superior energy saving characteristic is attained.SOLUTION: This invention relates to refrigeration facility 100 using latent heat of CObrine flowing a group of refrigeratio...

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Bibliographische Detailangaben
Hauptverfasser: TANAKA YOSHIAKI, FUKUOKA YOSHINORI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide ice rink refrigeration facility and refrigeration method in which a pump power is reduced and superior energy saving characteristic is attained.SOLUTION: This invention relates to refrigeration facility 100 using latent heat of CObrine flowing a group of refrigeration pipes installed at a bottom part of an ice rink comprising: a liquid receiver 18 for storing CObrine; a refrigerator device 10 forming a freezing cycle including a compressor 11 and a condenser 12 to change COgas in CObrine into coolant; and a circulation unit 20 for supplying CObrine stored in the liquid receiver 18 to a group of refrigeration pipes. The circulation unit 20 comprises a pressure adjuster 21 storing COliquid in CObrine, changing at least a part of COliquid into gas with waste heat of the compressor 11 to increase internal pressure; and a liquid feeder 22 in which COliquid got from the liquid receiver 18 is stored and communicated with the pressure adjuster 21 and kept at a high pressure than that of the group of refrigeration pipes to forcedly circulate COliquid to the group of refrigeration pipes under utilization of pressure difference between it and the group of refrigeration pipes.SELECTED DRAWING: Figure 2 【課題】ポンプ動力を削減し、優れた省エネルギー性を備えたアイスリンクの冷却設備及び冷却方法を提供する。【解決手段】アイスリンクの底部に敷設された冷却管群を流れるCO2ブラインの潜熱を用いた冷却設備100であって、CO2ブラインを貯留する受液器18と、圧縮機11及び凝縮器12を含む冷凍サイクルを形成し、CO2ブラインのうちCO2ガスを冷却液化する冷凍装置10と、受液器18に貯留されたCO2ブラインを冷却管群に供給する循環ユニット20とを備え、循環ユニット20は、CO2ブラインのうちCO2液を貯留し、CO2液の少なくとも一部を圧縮機11の廃熱によってガス化して内部圧力を上昇させる圧力調整器21と、受液器18からのCO2液が貯留され、圧力調整器21と連通されることによって冷却管群よりも高圧に維持され、冷却管群との圧力差を利用してCO2液を冷却管群に強制循環させる送液器22とを備える。【選択図】図2