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    • 4. 发明专利
    • HEAT STORAGE TANK
    • JPS63273788A
    • 1988-11-10
    • JP10824887
    • 1987-04-30
    • SHIMIZU CONSTRUCTION CO LTDKUBOTA LTD
    • TAKABE MOTOYUKIKATOU SUSUMU
    • F24D11/00F28D20/00F28D20/02
    • PURPOSE:To perform efficiently heat accumulation and dissipation by a method wherein inflow and outflow ports for a heating medium are provided over the entire surface of a heat storage tank containing latent heat accumulating capsules therein and the heat storage tank is so constituted that the heating medium is capable of flowing upwardly or downwardly in a simultaneous manner across the portion of the horizontal cross section of said tank. CONSTITUTION:Inflow and outflow ports 3, 4 for a heating medium are provided on the upper and lower surfaces of a heat storage tank 2 arranged with many of latent heat accumulating capsules 1 and, when the heat transfer medium is made to flow simultaneously across the horizontal cross section of the heat storage tank 2, the generation of a dead water region can also be prevented. Further, even if the heat storage tank 2 generally having a planar structure is formed into a substantially square or circular configuration, the flow path of the heat transfer medium becomes short in the distance from the upper surface of the tank to the lower surface thereof and the heat accumulation and dissipation with small temperature differences therebetween can be performed efficiently. Furthermore, in order to uniform the vertical flow of the heating medium in the whole heat storage tank 2 throughout the entire tank, the inflow and outflow ports 3, 4 for the heat transfer medium are preferably made into the form of jet nozzles in large numbers arranged uniformly along the inner wall of the tank.
    • 5. 发明专利
    • REGIONAL HEAT SUPPLY SYSTEM
    • JPH04155127A
    • 1992-05-28
    • JP28075190
    • 1990-10-19
    • SHIMIZU CONSTRUCTION CO LTD
    • TAKEBAYASHI YOSHIHISATAKABE MOTOYUKI
    • F24F5/00
    • PURPOSE:To enable reduction of capacity of a heat source on the supply side and a conveyance system and to reduce a cost to be borne by the demand side by a method wherein a freezer and a heat accumulating tank to accumulate a cold heat are disposed to the inlet of equipment on the secondary side, and during high load operation, the heat of the heat accumulating tank or a high pressure water tank is utilized. CONSTITUTION:For example, a freezer 5, an ice heat accumulation heat accumulating tank 6, and a heat exchanger 7 are disposed at the inlet of equipment on the secondary side, and cold water is fed as cooling water to the freezer 5 through a heat supply pipe 9 of a heat source supply facility with the aid of a pump 10. Cold water produced by the freezer 5 is fed to the ice heat accumulation heat accumulating tank 6 through a cold water feed pipe 11 with the aid of a pump 12, and heat is accumulated at the ice heat accumulation heat accumulating tank 6. Water utilized at equipment on the secondary side is fed to a heat exchanger 7 through a return pipe 14 with the aid of a pump 13 and cooled at the heat exchanger 7 by means of cold water fed from the ice heat accumulation heat accumulating tank 6 with the aid of a pump 15. The water is fed to the equipment on the secondary side through the heat supply pipe 9 again. Cold being a regional heat source is applied as cooling water on the freezer 5, heat is accumulated in format of ice, and through utilization of a latent heat during high load operation, a load is leveled.
    • 6. 发明专利
    • COOLING DEVICE
    • JPH0391636A
    • 1991-04-17
    • JP22980989
    • 1989-09-05
    • SHIMIZU CONSTRUCTION CO LTD
    • TAKABE MOTOYUKIIGARASHI SEISHIRO
    • F25D17/02F24F5/00
    • PURPOSE:To enable a high efficient operation with a step-wise cold water cooling operation by a method wherein a thermal accumulation tank of a secondary side cooling device and an evaporator of a primary side cooling device are connected by a pipe for circulating a thermal medium and the thermal accumulation tanks are provided with water of different temperatures a plurality of steps having different temperatures to each other. CONSTITUTION:A cooling device 20 is comprised of primary cooling device 20a for use in circulating and cooling refrigerant and a secondary cooling device 20b for use in cooling cold water heated by a cooling load. An expansion valve 6 of the primary cooling device is operated to move the refrigerant, resulting in that the refrigerant is liquefied while being passed through a condensor 3 and a compressor 2, the refrigerant may flow into an evaporator 4 and is gasified. In turn, the cold water heated by a heat exchanging operation with air at the secondary cooling device 20b is circulated within the pipe 11, the refrigerant may pass through cold water cooling heat exchangers 10 and 10 and is cooled. Thermal accumulated waters 21 and 23 within the thermal accumulating tanks 22 and 24 may circulate within the pipes 13 and 14 and are heated and at the same time they are heat exchanged with the thermal medium within the thermal accumulating tanks 22 and 24 and further they are cooled. With such an arrangement, a smooth step-wise refrigerant evaporation is carried out and then coefficient of performance of the refrigerator can be improved.