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    • 3. 发明专利
    • HEAT EXCHANGER
    • JPS6419290A
    • 1989-01-23
    • JP17096987
    • 1987-07-10
    • HITACHI LTD
    • KUDO MITSUOHAYASHI MASAKATSUMIYAMOTO SEIGOSAWAHATA TAKATOMO
    • F28D1/047F28F1/12F28F1/30
    • PURPOSE:To make the entire air flow substantially parallel to fin base plates so as to improve the heat transfer function of the heat exchanger by changing the angle of inclination of inclined louvers between adjacent residual fin base plates alternately in the opposite direction at every residual fin base plate pitch along the air flow direction. CONSTITUTION:The heat exchanger comprises, on the surface of a flat fluid tube 31, a heat exchange part formed by connecting a large number of waveform top parts of corrugated fins 1 bent into a waveform to each other, while on the fin planar part of the corrugated fins 1, inclined louvers 5a, 5b, 5c, and 5d which are slit continuously in a bridge-form alternately on opposite sides with a fin base line 3 as a centerline and inclined at a predetermined angle theta with respect to the air flow. In a thus constructed heat exchanger, the inclination angle of an inclined louver group existing between adjacent residual fin base plates 1a, 2a, 2b and 2d, is designed to be changed alternately in the opposite direction at every residual fin base plate pitch along the flow direction. Furthermore, the section of each of residual fin base plates 2a and 2b is formed into a channel shape, and the front inclined surface and rear inclined surface are bent in the same direction as the adjacent inclined louvers.
    • 6. 发明专利
    • HEAT TRANSMITTING DEVICE
    • JPS6071895A
    • 1985-04-23
    • JP17793883
    • 1983-09-28
    • HITACHI LTD
    • YANATORI MICHIOMIYAMOTO SEIGO
    • F28D15/06F28D15/02
    • PURPOSE:To contrive to improve the heat exchange efficiency and the heat controllability by a method wherein condensing pipes, evapolating pipes, steam transmitting pipes and fluid returning pipes with a bubble pump are divided into plural fluid circulating loops, and input to an individual heater for a bubble pump is provided or cut necessarily. CONSTITUTION:Steam transmitting pipes 5-a-5-c, fluide return pipes 6-a-6-c, riser pipes 8-a-8-c, tanks 7-a-7-c and pressure equalizing pipes 11-a-11-c are connected. And heaters 10-a-10-c are arranged at the base of each riser pipe 8-a-8-c. Hereby, a circulating loop with 1-a, a circulating loop with 1-b, and a circulating loop with 1-c operate all independently with others, and fins 4 around each evapolating pipe and fins 2 around condensing pipes all work well as heat transmitting surfaces, and highten the heat exchange efficiency of the whole devices, because refrigeration medium in evapolation pipes 3-a in the upper stream will not concentrately condense in the upper stream pipes 1-c for the condenser.
    • 8. 发明专利
    • THERMAL ENERGY STORAGE DEVICE
    • JPS604584A
    • 1985-01-11
    • JP11270883
    • 1983-06-24
    • HITACHI LTD
    • YANATORI MICHIOMIYAMOTO SEIGO
    • C09K5/06
    • PURPOSE:To increase the rate of heat dissipation and to accelerate the exothermic reaction, by using a thermal energy storage device having an absorber and an evaporator connected with each other through a liquid-return pipe, wherein the liquid-return pipe forms a circulation system together with a vapor-transfer pipe. CONSTITUTION:When the absorbent 5 is heated by passing a high-temperature heat medium through the heat-exchanger 7, the absorbed material 6 is desorbed from the absorbent 5, passed through the vapor-transfer pipe 3 to the evaporator 2 and liquefied by releasing the heat of condensation. In the above process, the valves 4 and 10 are held to the open state and the close state, respectively. In the case of utilizing the heat stored by the above process, the valve 10 of the liquid-return pipe 9 is opened, and at the same time, the material to be absorbed 6 in the evaporator 2 is supplied to the absorber 1 with the pump 1. Thereafter, the valve 4 of the vapor-transfer pipe 3 and the valve 10 of the liquid-return pipe 9 are closed to induce the exothermic reaction between the absorbent 5 and the material to be absorbed 6 and raise the temperature in the absorber 1. The heat generated in the absorber 1 is transferred to the heat medium passing through the heat-exchanger 7.
    • 10. 发明专利
    • Heat storage material
    • 热存储材料
    • JPS58215481A
    • 1983-12-14
    • JP9764982
    • 1982-06-09
    • Hitachi Ltd
    • KOIKE KEIICHIYANATORI MICHIOMIYAMOTO SEIGOKANBARA HIDEAKI
    • C09K5/06
    • PURPOSE: To provide a latent heat storage material containing aluminum ammonium sulfate and aluminum potassium sulfate and having melting and freezing points that can be controlled to desired temperatures between 45 and 90°C.
      CONSTITUTION: A heat storage substance with a melting point of 60W90°C is prepared by blending aluminum ammonium sulfate [ammonium alum; (NH
      4 )Al(SO
      4 )
      2 .12H
      2 O] and aluminum potassium sulfate [potash alum; KAl(SO
      4 )
      2 . 12H
      2 O]to produce a mixture with an eutectic composition (48.86wt% ammonium alum and 51.14wt% potash alum). The heat storage material is obtained by adding zinc sulfate (ZnSO
      4 .7H
      2 O) or magnesium sulfate (MgSO
      4 .7H
      2 O) to the above heat storage substance. When a nucleator is added, the heat storage material becomes freed from overcooling and performs heat storage and release within a given narrow temperature range. The nucleator includes phthalic anhydride, benzoic acid, salicylic acid, etc.
      COPYRIGHT: (C)1983,JPO&Japio
    • 目的:提供含有硫酸铝铵和硫酸铝钾的潜热储存材料,其熔点和凝固点可控制在45至90℃之间所需的温度。 构成:熔融温度为60-90℃的储热物质是通过将硫酸铝铵[铵明矾, (NH4)Al(SO4)2.12H2O]和硫酸铝钾[钾矾; KAl(SO4)2。 12H2O]以产生具有共晶组成物(48.86wt%铵明矾和51.14wt%钾盐)的混合物。 通过向上述储热物质中加入硫酸锌(ZnSO 4·7H 2 O)或硫酸镁(MgSO 4·7H 2 O)得到储热材料。 当添加成核剂时,储热材料变得不会过冷,并在给定的窄温度范围内进行储热和释放。 成核剂包括邻苯二甲酸酐,苯甲酸,水杨酸等