JP2010286132A - Heat storage system - Google Patents
Heat storage system Download PDFInfo
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- JP2010286132A JP2010286132A JP2009138323A JP2009138323A JP2010286132A JP 2010286132 A JP2010286132 A JP 2010286132A JP 2009138323 A JP2009138323 A JP 2009138323A JP 2009138323 A JP2009138323 A JP 2009138323A JP 2010286132 A JP2010286132 A JP 2010286132A
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- storage system
- heat storage
- air
- heat exchanger
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- 238000005338 heat storage Methods 0.000 title claims abstract description 45
- 238000004378 air conditioning Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 abstract description 3
- 229910018503 SF6 Inorganic materials 0.000 description 10
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
Abstract
Description
本発明は、ヒートポンプチラーを使用した蓄熱システムに関し、より詳細には、地下変電所からの排熱を有効利用する蓄熱システムに関する。 The present invention relates to a heat storage system using a heat pump chiller, and more particularly to a heat storage system that effectively uses exhaust heat from an underground substation.
大都市部においては、年々電力需要が増大しており、これに対応するために変電所の増設が求められているが、各種施設の密集する商業地域においては、変電所用の土地を確保することが難しい。この点に鑑み、近年、施設の地下に変電所を建設することが広く行なわれている。 In metropolitan areas, demand for electric power is increasing year by year, and in order to respond to this demand, additional substations are required. In commercial areas where various facilities are concentrated, it is necessary to secure land for substations. Is difficult. In view of this point, in recent years, construction of substations in the basement of facilities has been widely performed.
このような地下変電所においては、防災上の観点から、変圧器の巻線の絶縁および冷却をＳＦ６ガス（六フッ化硫黄）で行なうガス絶縁変圧器が採用されることが多い。当該ガス絶縁変圧器からの発生する熱は、風冷式の場合、空気を熱媒として大気中へ放熱される。 In such an underground substation, from the viewpoint of disaster prevention, a gas-insulated transformer that performs insulation and cooling of the transformer windings with SF6 gas (sulfur hexafluoride) is often employed. In the case of an air-cooled type, the heat generated from the gas-insulated transformer is radiated to the atmosphere using air as a heat medium.
一方、近年、電力消費量の平準化を企図して、電気料金の安い夜間電力を使用して地下の蓄熱水槽に貯留した水を昇温／冷却しておき、昼間に当該蓄熱水槽に貯留された温冷水を使用してビル内の空調を行なう蓄熱式空調システムが大都市部の商業地域において採用されはじめている。特開平１０−１９３２０号公報（特許文献１）は、安価な夜間電力を用いて、蓄熱水槽の水を加熱または冷却し、昼間にこれらの温冷水をビル内の冷暖房機器に供給する地域冷暖房システムを開示する。 On the other hand, in recent years, with the aim of leveling power consumption, water stored in an underground heat storage tank is heated / cooled using night electricity with low electricity charges, and stored in the heat storage tank in the daytime. Thermal storage air conditioning systems that use hot and cold water to air-condition buildings are beginning to be adopted in commercial areas in large cities. Japanese Patent Laid-Open No. 10-19320 (Patent Document 1) discloses a district cooling / heating system that uses cheap nighttime power to heat or cool water in a heat storage tank and supplies the hot / cold water to a cooling / heating device in a building during the day. Is disclosed.
ここで、仮に、特許文献１の蓄熱手段にヒートポンプチラーを採用することを想定した場合、冬期においては、夜間の外気温度が低いためＣＯＰ（成績係数：熱・冷熱量の、消費する電力量に対する割合）が悪化し、特に、寒冷地においては、ヒートポンプ蒸発器の表面温度が０℃以下になって頻繁に結霜が生じるため、デフロスト（除霜）等の保守コストが過大になるという問題がある。 Here, if it is assumed that a heat pump chiller is employed as the heat storage means of Patent Document 1, in winter, the outside air temperature at night is low, so COP (coefficient of performance: amount of heat / cold energy with respect to consumed electric energy) In particular, in cold regions, the surface temperature of the heat pump evaporator becomes 0 ° C. or lower, and frequent frost formation occurs. Therefore, there is a problem that maintenance costs such as defrost (defrosting) become excessive. is there.
本発明は、上記従来技術における課題に鑑みてなされたものであり、本発明は、施設に近接して建設される地下変電所の排熱を利用して、蓄熱式空調システムのＣＯＰを向上させることのできる新規な蓄熱システムを提供することを目的とする。 This invention is made | formed in view of the subject in the said prior art, and this invention improves COP of a thermal storage type | formula air conditioning system using the waste heat of the underground substation constructed close to a facility. It aims at providing the novel thermal storage system which can be used.
本発明者は、施設の敷地内に建設される地下変電所の排熱を利用して、蓄熱式空調システムに用いられる蓄熱式空調システムのＣＯＰを向上させることのできる新規な蓄熱システムにつき鋭意検討した結果、地下変電所内で発生する排熱によって生じた暖気をヒートポンプチラーの熱交換器に接触させることによって、寒冷地において問題視されていた熱交換器表面の結霜が好適に防止され、加えて、当該暖気から多くの温熱エネルギーを抽出することができるため、夜間気温が氷点下になる環境においても、夜間電力を使用して、昼間の空調に供するための必要十分な温熱エネルギーを蓄熱することが可能になることを見出し、本発明に至ったのである。 The present inventor has intensively studied a new heat storage system that can improve the COP of a heat storage type air conditioning system used in a heat storage type air conditioning system by using the exhaust heat of an underground substation built on the site of a facility. As a result, by contacting the warm air generated by the exhaust heat generated in the underground substation with the heat exchanger of the heat pump chiller, frost formation on the surface of the heat exchanger, which has been regarded as a problem in cold regions, is preferably prevented and added. Therefore, it is possible to extract a large amount of thermal energy from the warm air, so that even in an environment where the night air temperature is below freezing, it is necessary to store enough thermal energy necessary for daytime air conditioning using night power. As a result, the present invention has been found.
すなわち、本発明によれば、地下変電所に近接する施設に設けられる蓄熱システムであって、ヒートポンプチラーと、前記ヒートポンプチラーと熱的に接続される蓄熱水槽とを含み、前記ヒートポンプチラーの熱交換器に対して、前記地下変電所内で発生する排熱によって生じた暖気を接触させることを特徴とする蓄熱システムが提供される。 That is, according to the present invention, a heat storage system provided in a facility adjacent to an underground substation, including a heat pump chiller and a heat storage water tank thermally connected to the heat pump chiller, and heat exchange of the heat pump chiller A heat storage system is provided in which warm air generated by exhaust heat generated in the underground substation is brought into contact with a storage device.
本発明においては、前記熱交換器は、カバーによって包囲された空間内に配置され、前記地下変電所内には空冷式のガス絶縁変圧器が配置されており、前記ガス絶縁変圧器からの排気が導入されるチャンバールームと前記カバーによって包囲された空間とが流路によって接続されるように構成することができる。 In the present invention, the heat exchanger is disposed in a space surrounded by a cover, an air-cooled gas-insulated transformer is disposed in the underground substation, and the exhaust from the gas-insulated transformer is exhausted. The chamber room to be introduced and the space surrounded by the cover can be connected by a flow path.
また、本発明においては、前記チャンバールームは、電動ダンパーを経て前記流路に接続されており、前記流路は、送風ファンを経て前記カバーによって包囲された空間に接続されるように構成することができ、前記電動ダンパーは、冬期運転モードにおいて開き、該電動ダンパーの開状態に連動して前記送風ファンが稼働するように制御することができる。さらに、本発明においては、前記蓄熱水槽は、前記施設の地下に設けることができ、前記施設の空調システムに熱的に接続することができる。 In the present invention, the chamber room is connected to the flow path via an electric damper, and the flow path is connected to a space surrounded by the cover via a blower fan. The electric damper can be controlled to open in the winter operation mode and to operate the blower fan in conjunction with the open state of the electric damper. Furthermore, in this invention, the said thermal storage tank can be provided in the basement of the said facility, and can be thermally connected to the air conditioning system of the said facility.
上述したように、本発明によれば、施設の敷地内に建設される地下変電所の排熱を利用して、蓄熱式空調システムのＣＯＰを向上させることのできる新規な蓄熱システムが提供される。 As described above, according to the present invention, a novel heat storage system is provided that can improve the COP of a heat storage type air conditioning system using the exhaust heat of an underground substation constructed in the site of a facility. .
以下、本発明を図面に示した実施の形態をもって説明するが、本発明は、図面に示した実施の形態に限定されるものではない。 Hereinafter, the present invention will be described with reference to embodiments shown in the drawings, but the present invention is not limited to the embodiments shown in the drawings.
図１は、本発明の実施形態である蓄熱システム１００を示す。図１に示す例においては、蓄熱システム１００は、地下変電所２００に近接するオフィスビル３００に適用されている。地下変電所２００は、大都市部の商業地域における土地不足に鑑みて、オフィスビル３００の敷地の地下に建設されており、オフィスビル３００をはじめ、近隣の施設に電力を供給している。本実施形態の蓄熱システム１００は、概ね、ヒートポンプ機構によって水を加熱・冷却するためのヒートポンプチラー１０と、オフィスビル３００の地下に設けられた蓄熱水槽２０と、地下変電所２００からの排熱によって昇温された空気（暖気）をヒートポンプチラー１０の熱交換器に接触させるための機構とを含んで構成されている。 FIG. 1 shows a heat storage system 100 according to an embodiment of the present invention. In the example shown in FIG. 1, the heat storage system 100 is applied to an office building 300 close to the underground substation 200. The substation 200 is constructed in the basement of the office building 300 in view of a shortage of land in a commercial area in a large city, and supplies power to the office building 300 and other nearby facilities. The heat storage system 100 of this embodiment is generally based on the heat pump chiller 10 for heating and cooling water by a heat pump mechanism, the heat storage water tank 20 provided in the basement of the office building 300, and the exhaust heat from the underground substation 200. And a mechanism for bringing the heated air (warm air) into contact with the heat exchanger of the heat pump chiller 10.
最初に、蓄熱システム１００におけるヒートポンプチラー１０の機能について説明する。本実施形態におけるヒートポンプチラー１０は、ヒートポンプ機構によって水を加熱・冷却するものであり、好ましくは、スクリューヒートポンプチラーとすることができる。現在、電力会社は、蓄熱式空調システムを推奨しており、事業者は、電力会社と業務用蓄熱契約を結ぶことによって電気料金の大幅な割引を受けることができる。ヒートポンプチラー１０は、安い夜間電力を使用して蓄熱水槽２０に貯留される水を、例えば、夏期には８℃まで冷却し、冬期には６０℃まで加温するように構成されている。 First, the function of the heat pump chiller 10 in the heat storage system 100 will be described. The heat pump chiller 10 in the present embodiment heats and cools water by a heat pump mechanism, and can be preferably a screw heat pump chiller. Currently, electric power companies recommend thermal storage air-conditioning systems, and businesses can receive significant discounts on electricity bills by signing commercial thermal storage contracts with electric power companies. The heat pump chiller 10 is configured to cool the water stored in the heat storage water tank 20 using cheap nighttime electricity to, for example, 8 ° C. in the summer and 60 ° C. in the winter.
具体的には、蓄熱水槽２０内の水に温熱を蓄熱する運転モード（以下、冬期運転モードという）において、ヒートポンプチラー１０は、以下のように作動する。すなわち、ヒートポンプチラー１０内を実線矢印方向に循環する熱媒は、圧縮機１２によって圧縮されて高温高圧になったのち、水冷式熱交換器１４において放熱して液化する。液化した熱媒は、膨張弁１６を通過後に減圧し、熱交換器１８に導入される。なお、冬期運転モードにおいては、熱交換器１８は蒸発器として機能する。 Specifically, in an operation mode (hereinafter referred to as winter operation mode) in which heat is stored in water in the heat storage water tank 20, the heat pump chiller 10 operates as follows. That is, the heat medium circulating in the direction of the solid arrow in the heat pump chiller 10 is compressed by the compressor 12 to become high temperature and high pressure, and then radiates and liquefies in the water-cooled heat exchanger 14. The liquefied heat medium is reduced in pressure after passing through the expansion valve 16 and introduced into the heat exchanger 18. In the winter operation mode, the heat exchanger 18 functions as an evaporator.
ヒートポンプチラー１０の水冷式熱交換器１４は、流路１９，１９によって蓄熱水槽２０に熱的に接続されており、ヒートポンプチラー１０の運転中、蓄熱水槽２０に貯留された水は、ポンプ２２によって水冷式熱交換器１４に導入された後、再び、蓄熱水槽２０に戻るように構成されている。よって、水冷式熱交換器１４内で加熱された水は、流路１９を経て蓄熱水槽２０内に回収され、その結果、蓄熱水槽２０内の水が加温される。 The water-cooled heat exchanger 14 of the heat pump chiller 10 is thermally connected to the heat storage water tank 20 by flow paths 19 and 19, and the water stored in the heat storage water tank 20 is operated by the pump 22 during operation of the heat pump chiller 10. After being introduced into the water-cooled heat exchanger 14, it is configured to return to the heat storage water tank 20 again. Therefore, the water heated in the water-cooled heat exchanger 14 is collected in the heat storage water tank 20 through the flow path 19, and as a result, the water in the heat storage water tank 20 is heated.
一方、蓄熱水槽２０内の水に冷熱を蓄熱する運転モード（以下、夏期運転モードという）において、ヒートポンプチラー１０は、以下のように作動する。すなわち、ヒートポンプチラー１０内を破線矢印方向に循環する熱媒は、圧縮機１２によって圧縮されて高温高圧になったのち、熱交換器１８において放熱して液化する。なお、夏期運転モードにおいては、熱交換器１８は凝縮器として機能する。 On the other hand, in the operation mode (hereinafter referred to as summer operation mode) in which cold energy is stored in the water in the heat storage water tank 20, the heat pump chiller 10 operates as follows. That is, the heat medium circulating in the direction of the broken line arrow in the heat pump chiller 10 is compressed by the compressor 12 to become high temperature and pressure, and then radiates and liquefies in the heat exchanger 18. In the summer operation mode, the heat exchanger 18 functions as a condenser.
熱交換器１８において放熱して液化した熱媒が膨張弁１６を通過後に減圧して気化する際、水冷式熱交換器１４内で蓄熱水槽２０から導入される水から気化熱を奪って、これを冷却する。水冷式熱交換器１４内で冷却された水は、流路１９を経て蓄熱水槽２０内に回収され、その結果、蓄熱水槽２０内の水が冷却される。 When the heat medium radiated and liquefied in the heat exchanger 18 is depressurized and vaporized after passing through the expansion valve 16, it takes heat of vaporization from the water introduced from the heat storage tank 20 in the water-cooled heat exchanger 14. Cool down. The water cooled in the water-cooled heat exchanger 14 is collected in the heat storage water tank 20 through the flow path 19, and as a result, the water in the heat storage water tank 20 is cooled.
なお、蓄熱水槽２０はオフィスビル３００内の各区画に備え付けられた空調装置と熱的に接続されている。具体的には、蓄熱水槽２０内の蓄熱した水（温水／冷水）は、昼間、ポンプ３０によって汲み上げられ、流路３２を通って、オフィスビル３００内の各区画に備え付けられた図示しない空調装置に導入されて空調に寄与した後、流路３３を通って、再び、蓄熱水槽２０に回収される。 The thermal storage tank 20 is thermally connected to an air conditioner provided in each section in the office building 300. Specifically, water stored in the heat storage tank 20 (hot water / cold water) is pumped up by the pump 30 in the daytime, passes through the flow path 32, and is provided in each section in the office building 300, not shown. After being introduced to the air conditioner and contributing to the air conditioning, it passes through the flow path 33 and is again collected in the heat storage water tank 20.
以上、蓄熱システム１００におけるヒートポンプチラー１０の機能について説明してきたが、ヒートポンプチラー１０の熱交換器１８は、冬期運転モードにおいては、熱媒の気化熱を周辺空気から奪うため、当該空気が冷却されて結露が生じ、これが熱交換器１８の表面に付着する。夜間、気温が氷点下になる寒冷地においては、この結露が結霜となって固着し、熱交換器１８の熱交換効率を悪化させると同時に、デフロストのためのコストが増大するという問題がある。本実施形態においては、地下変電所２００から発生する排熱を利用して、この問題を解決する。以下、この点につき詳細に説明する。 Although the function of the heat pump chiller 10 in the heat storage system 100 has been described above, the heat exchanger 18 of the heat pump chiller 10 takes the heat of vaporization of the heat medium from the surrounding air in the winter operation mode, so that the air is cooled. As a result, condensation occurs and adheres to the surface of the heat exchanger 18. In a cold region where the temperature is below freezing at night, this condensation forms frost and sticks, deteriorating the heat exchange efficiency of the heat exchanger 18 and increasing the cost for defrosting. In the present embodiment, this problem is solved by utilizing exhaust heat generated from the underground substation 200. Hereinafter, this point will be described in detail.
最初に、地下変電所２００の構成について説明する。図１に示す例においては、地下変電所２００内には、複数のＳＦ６ガス絶縁変圧器５０が配置されている。ＳＦ６ガス絶縁変圧器５０は、変圧器の巻線をＳＦ６ガスで満たしたタンク内に密封し、当該タンクと空冷式熱交換器５２とを熱的に接続することによって構成されている。本実施形態におけるＳＦ６ガス絶縁変圧器５０は、その冷却方式として風冷式を採用しており、ＳＦ６ガス絶縁変圧器５０内で発生した排熱は、空冷式熱交換器５２を介して、送風ファン５４から送気される空気に伝熱される。 First, the configuration of the underground substation 200 will be described. In the example shown in FIG. 1, a plurality of SF6 gas insulated transformers 50 are arranged in the underground substation 200. The SF6 gas insulated transformer 50 is configured by sealing the transformer winding in a tank filled with SF6 gas and thermally connecting the tank and the air-cooled heat exchanger 52. The SF6 gas insulated transformer 50 in this embodiment employs an air cooling method as its cooling method, and the exhaust heat generated in the SF6 gas insulated transformer 50 is blown through the air-cooled heat exchanger 52. Heat is transferred to the air supplied from the fan 54.
一方、各ＳＦ６ガス絶縁変圧器５０には、空冷熱交換器５２を覆う形で排気ダクト５６が配備されており、送風ファン５４から送気された空気は、空冷熱交換器５２を通過して排気ダクト５６から回収されるように構成されている。その結果、ＳＦ６ガス絶縁変圧器５０内で発生した熱は、送風に伴って生じる騒音を吸収するために設けられたサイレンサ６０を経て、チャンバールーム６２に導入される。なお、地下変電所２００には、図示しない給気流路が接続されており、外気が地下変電所２００内に導入されるように構成されている。チャンバールーム６２に導入された暖気は、最終的に吹出し口６４から屋外に放出される。 On the other hand, each SF6 gas insulated transformer 50 is provided with an exhaust duct 56 so as to cover the air cooling heat exchanger 52, and the air sent from the blower fan 54 passes through the air cooling heat exchanger 52. The exhaust duct 56 is configured to be recovered. As a result, the heat generated in the SF6 gas insulated transformer 50 is introduced into the chamber room 62 through the silencer 60 provided to absorb the noise generated by the blowing. Note that an air supply passage (not shown) is connected to the underground substation 200 so that outside air is introduced into the underground substation 200. The warm air introduced into the chamber room 62 is finally discharged to the outside from the outlet 64.
一方、本実施形態においては、ヒートポンプチラー１０の熱交換器１８は、カバー７０によって包囲された空間内に配置されており、当該空間とチャンバールーム６２とが、流路７２によって接続されている。また、チャンバールーム６２は、電動ダンパー７４を経て流路７２に接続されており、流路７２は、送風ファン７６を経てカバー７０によって包囲された空間に接続されている。 On the other hand, in the present embodiment, the heat exchanger 18 of the heat pump chiller 10 is disposed in a space surrounded by the cover 70, and the space and the chamber room 62 are connected by a flow path 72. The chamber room 62 is connected to the flow path 72 via the electric damper 74, and the flow path 72 is connected to the space surrounded by the cover 70 via the blower fan 76.
本実施形態においては、冬期運転モードの際に、電動ダンパー７４が開くように構成されており、電動ダンパー７４の開状態に連動して送風ファン７６が稼働するように構成されている。したがって、冬期運転モードの際には、地下変電所２００から発生する排熱によって生じた暖気は、チャンバールーム６２から流路７２を経てカバー７０内の熱交換器１８に吹付けられる。その結果、熱交換器１８に接触する空気の温度が、運転中、所定温度以上に保たれるため、寒冷地であっても、熱交換器１８表面の結霜の形成が好適に防止され、加えて、当該暖気から多くの温熱エネルギーを抽出することができるため、ＣＯＰが格段に向上する。 In the present embodiment, the electric damper 74 is configured to open during the winter operation mode, and the blower fan 76 is operated in conjunction with the open state of the electric damper 74. Therefore, in the winter operation mode, warm air generated by exhaust heat generated from the underground substation 200 is blown from the chamber room 62 to the heat exchanger 18 in the cover 70 via the flow path 72. As a result, the temperature of the air in contact with the heat exchanger 18 is maintained at a predetermined temperature or higher during operation, so that the formation of frost on the surface of the heat exchanger 18 is suitably prevented even in cold regions. In addition, since a large amount of thermal energy can be extracted from the warm air, the COP is significantly improved.
以上、本発明について実施形態をもって説明してきたが、本発明は上述した実施形態に限定されるものではなく、その他、当業者が推考しうる実施態様の範囲内において、本発明の作用・効果を奏する限り、本発明の範囲に含まれるものである。 As described above, the present invention has been described with the embodiments. However, the present invention is not limited to the above-described embodiments, and other functions and effects of the present invention are within the scope of embodiments that can be considered by those skilled in the art. As long as it plays, it is included in the scope of the present invention.
以上、説明したように、本発明によれば、施設に近接して建設される地下変電所の排熱を利用して、蓄熱式空調システムのＣＯＰを向上させることのできる新規な蓄熱システムが提供される。本発明の蓄熱システムは、特に寒冷地において、ビル空調のトータルコストの大幅な軽減に寄与することが期待される。 As described above, according to the present invention, a novel heat storage system capable of improving the COP of a heat storage type air conditioning system using the exhaust heat of an underground substation constructed close to a facility is provided. Is done. The heat storage system of the present invention is expected to contribute to a significant reduction in the total cost of building air conditioning, particularly in cold regions.
１００…蓄熱システム、２００…地下変電所、３００…オフィスビル、１０…ヒートポンプチラー、１２…圧縮機、１４…水冷式熱交換器、１６…膨張弁、１８…熱交換器、１９…流路、２０…蓄熱水槽、２２…ポンプ、３０…ポンプ、３２…流路、３３…流路、５０…ＳＦ６ガス絶縁変圧器、５２…空冷式熱交換器、５４…送風ファン、５６…排気ダクト、６０…サイレンサ、６２…チャンバールーム、６４…吹出し口、７０…カバー、７２…流路、７４…電動ダンパー、７６…送風ファン DESCRIPTION OF SYMBOLS 100 ... Thermal storage system, 200 ... Underground substation, 300 ... Office building, 10 ... Heat pump chiller, 12 ... Compressor, 14 ... Water-cooled heat exchanger, 16 ... Expansion valve, 18 ... Heat exchanger, 19 ... Flow path, DESCRIPTION OF SYMBOLS 20 ... Thermal storage tank, 22 ... Pump, 30 ... Pump, 32 ... Channel, 33 ... Channel, 50 ... SF6 gas insulation transformer, 52 ... Air-cooled heat exchanger, 54 ... Blower fan, 56 ... Exhaust duct, 60 ... Silencer, 62 ... Chamber room, 64 ... Air outlet, 70 ... Cover, 72 ... Flow path, 74 ... Electric damper, 76 ... Blower fan
Claims (6)
ヒートポンプチラーと、
前記ヒートポンプチラーと熱的に接続される蓄熱水槽と
を含み、
前記ヒートポンプチラーの熱交換器に対して、前記地下変電所内で発生する排熱によって生じた暖気を接触させることを特徴とする、
蓄熱システム。 A heat storage system installed in a facility near an underground substation,
A heat pump chiller,
A heat storage water tank thermally connected to the heat pump chiller,
The heat pump chiller heat exchanger is characterized by contacting warm air generated by exhaust heat generated in the underground substation,
Thermal storage system.
前記ガス絶縁変圧器からの排気が導入されるチャンバールームと前記カバーによって包囲された空間とが流路によって接続される、請求項１に記載の蓄熱システム。 The heat exchanger is disposed in a space surrounded by a cover, and an air-cooled gas-insulated transformer is disposed in the underground substation,
The heat storage system according to claim 1, wherein a chamber room into which exhaust from the gas-insulated transformer is introduced and a space surrounded by the cover are connected by a flow path.
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| JPH02288312A (en) * | 1989-04-28 | 1990-11-28 | Toshiba Corp | Gas insulation transformer |
| JPH10223442A (en) * | 1997-02-07 | 1998-08-21 | Hitachi Ltd | Transforming apparatus cooling system and operation method thereof |
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