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1. 发明专利

JPS57112657A SOLAR HEAT COLLECTOR 失效
公开(公告)号：JPS57112657A
公开(公告)日：1982-07-13
申请号：JP18849180
申请日：1980-12-29
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： YAMAMOTO TAKANOBU , SUMIDA ISAO , TSUKAMOTO MORIAKI , IMANI KAZUTAKE , WATABIKI NAOHISA
IPC分类号： F24S10/40 , F24S10/70 , F24S10/95
摘要： PURPOSE:To improve the heat transfer characteristic at a heat pipe condensing part by fitting saw-tooth fins on the outer side of an accommodating pipe of a heat medium and accommodating a cross fin in the inner part thereof. CONSTITUTION:Saw-tooth fins 8A are fitted on the outer face part of a heat medium pipe 5, and a cross fin 9 is contained in the inner part of the heat medium pipe 5. The fins 8A have heat transfer function approximately twice that of the cross fin 9. Since it is apparent from the calculation that incorporation of the fin 9 has heat transfer coefficient approximately twice as compared with the case of non-incorporation of the fin 9, it is possible to obtain a heat transfer coefficient which is approximately four times large.

2. 发明专利

JPS57112654A STRUCTURE OF HEADER OF SOLAR HEAT COLLECTOR 失效
公开(公告)号：JPS57112654A
公开(公告)日：1982-07-13
申请号：JP18848880
申请日：1980-12-29
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： SUMIDA ISAO , TSUKAMOTO MORIAKI , YAMAMOTO TAKANOBU , IMANI KAZUTAKE , FUJINO MITSUHIRA
IPC分类号： F24S10/70 , F24S10/95 , F28D15/02
摘要： PURPOSE:To simplify the construction of the header by separately manufacturing the heat pipe of the header part which performs transfer of heat between the heat pipe and the heat collecting medium and the flowpath which flows the heat collecting medium, and bringing them into mechanical contact with each other. CONSTITUTION:The tip end of the heat pipe 2 is formed into a U-shaped vessel 7, and steam transported by a pipe 2 is led into the inner part of the vessel 7 and condensed. The condensed steam returns to the pipe 2. Further, the heat medium flowpath is formed into a flowpath 1 having a rectangular section, and a radiator 7 at the tip end of the pipe 2 is in contact with the flowpath 1 at its smooth surface. Both are mechanically contacted with each other by a clamp. By this organization, the heat transfer area is greatly increased, and the manufacturing and machining of the radiator 7 and the flowpath 1 become easy because both are constructed in the simple manner of rectanglar section.

3. 发明专利

JPS57112643A SOLAR HEAT COLLECTOR 失效
公开(公告)号：JPS57112643A
公开(公告)日：1982-07-13
申请号：JP18847780
申请日：1980-12-29
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： YOKOYAMA IWAO , TSUKAMOTO MORIAKI , SUMIDA ISAO , FUJINO MITSUHIRA , IMANI KAZUTAKE
IPC分类号： F24J2/46 , F24S10/70 , F24S10/95 , F28D15/02
摘要： PURPOSE:To prevent damage of a heat pipe ascribable to freezing of a thermal medium by a method wherein a material which does not mix with thermal medium and has smaller specific gravity and vapor pressure head larger than those of the thermal medium is enclosed. CONSTITUTION:A medium 7 which does not mix with a thermal medium 6 and has smaller specific gravity and larger vapor pressure head than those of the thermal medium 6 is enclosed in a heat pipe 3. When an operation of the heat pipe 3 is stopped the medium 7 is always above te thermal medium 6. Under this locational relation the medium 7 blocks evaporation of the thermal medium 6. The thermal medium 6, therefore, does not freeze from the top because of evaporative cooling. Therefore, it is necessary that a quantity of the medium 7 shall be satisfactorily small as compared with that of the thermal medium 6 so that evaporation of the thermal medium 6 is not prevented at the time of a normal operation.

4. 发明专利

JPS5866787A HEAT PIPE WITH PREVENTIVE MECHANISM FOR BREAKAGE DUE TO FREEZING 失效
公开(公告)号：JPS5866787A
公开(公告)日：1983-04-21
申请号：JP16421781
申请日：1981-10-16
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： TSUKAMOTO MORIAKI , CHINEN MASANORI , YAMAMOTO TAKANOBU , IMANI KAZUTAKE , SUMIDA ISAO
IPC分类号： F28D15/02 , F28D15/04
摘要： PURPOSE:To prevent a heat pipe from being broken due to freezing of water, by a method wherein wicks are discontinuously placed to dispersely hold water after the operation of a heat pipe is stopped, so that there are sufficient spaces for absording the volume expansion of water when water is frozen. CONSTITUTION:The heat pipe 1 in which water 6 serving as a heat-transmitting medium is sealed consists of a heat-receiving part 2, a heat-radiating part 3 and a heat- insulating part 7, and a plurality of cylindrical wicks 4 are provided in contact with the inside wall of the heat pipe 1 in a discontinuous manner at one or more parts in the axial direction of the heat pipe 1. The length 8 of the wick 4 varies depending on the head of the capillary tube of the wick. For example, when a copper-made net of 100 mesh is used as the wick, the lenght 8 of the wick is set to be about 25-50mm., and the length of each of gaps 5 is set to be about 5-15mm.. When the heat pipe is operated, water held in each of the wicks is evaporated, transfers heat to the heat- radiating part 3, is condensed in the part 3, and condensed water is returned to the lowermost part of the pipe while replenishing water. When the operation of the heat pipe is stopped, water is dispersely held in the wicks, so that the heat pipe is not broken even when water is frozen.

5. 发明专利

JPS57182046A VACUUM TUBE TYPE SOLAR HEAT COLLECTOR 失效
公开(公告)号：JPS57182046A
公开(公告)日：1982-11-09
申请号：JP6417781
申请日：1981-04-30
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： WATABIKI NAOHISA , TSUKAMOTO MORIAKI , YAMAMOTO TAKANOBU , IMANI KAZUTAKE , SUMIDA ISAO
IPC分类号： F24J2/40 , F24S10/40
摘要： PURPOSE:To prevent the selective adsorbing surface of a heat collecting plate from deterioration resulting from the surface being overheated by the radiant heat of the sun by a method wherein in the titled heat collector in which a heat collecting body is sealed in a vaccum glass tube, a reflecting plate is arranged between a part of the glass tube to be heated at the time of vacuum sealing and the heat collecting body. CONSTITUTION:The heat collecting body comprising a heat collecting plate 2 and a heat collecting pipe 3 is sealed in the vacuum glass tube 1. In this case, the reflecting plate 6 in the form of a plain aluminum disk is provided between the heat collecting plate 2 and a vacuum sealing end 5 of the glass tube 1 so that the selective adsorbing surface of the heat collecting plate 2 is protected against the radiant heat of the sun at the time of vacuum sealing the heat collecting body in the glass tube 1 and as a secondary effect, sunlight reflects on the reflecting plate 6 to become incident on the heat collecting plate 2 to thereby increase the heat collecting efficiency of the plate 2. Further, a second reflecting plate 7 is provided on the front surface of a header 4 so that sunlight reflects on the reflecting plate 7 to become incident on the heat collecting plate 6 to thereby increase the heat collecting efficiency of the plate 6, too.

6. 发明专利

JPS57112656A SOLAR HEAT COLLECTOR 失效
公开(公告)号：JPS57112656A
公开(公告)日：1982-07-13
申请号：JP18849080
申请日：1980-12-29
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： TSUKAMOTO MORIAKI , SUMIDA ISAO , YAMAMOTO TAKANOBU , IMANI KAZUTAKE , WATABIKI NAOHISA
IPC分类号： F24S10/70
摘要： PURPOSE:To increase the heat collection efficiency of the solar heat collector by making the diameter of a vacuum glass pipe at a part through which a heat collecting pipe penetrates, smaller than the diameter of the vacuum glass pipe at other part. CONSTITUTION:A heat pipe made heat collecting pipe 3 bonded to a heat collecting plate 2 penetrates through an evacuation leading-in pipe 10 and is bonded to the heat collecting plate 2. Here, a special alloy made metal cap 8 having a heat expansion rate substantially the same as the glass is bonded to a glass cap 9 through a frit 6. The cap 9 containing the heat collecting plate 2, the cap 8 and the like are bonded to the vacuum glass pipe 1 at a glass bonded part 12. By this procedure, since there is no part having a diameter greater than the diameter of the vacuum pipe 1, the vacuum pipe 1 can be arranged in tight adhesion with the adjacent vacuum glass pipe, and hence the heat collection efficiency is increased.

7. 发明专利

JPS57112651A SOLAR HEAT COLLECTOR 失效
公开(公告)号：JPS57112651A
公开(公告)日：1982-07-13
申请号：JP18848580
申请日：1980-12-29
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： YAMAMOTO TAKANOBU , SUMIDA ISAO , TSUKAMOTO MORIAKI , IMANI KAZUTAKE , WATABIKI NAOHISA
IPC分类号： F24J2/46 , F24S10/70 , F24S10/95 , F28D15/02
摘要： PURPOSE:To reduce the area of a header part and prevent staying of a working liquid in a radiation cylinder part by bending parts outside the transparent vacuum pipe of a heat pipe at two or morew positions and locating the heat-exchange part at close to the collector side than the above described bent parts. CONSTITUTION:In a case where the collector (not shown) is installed with a gradient of for example 30 deg., a heat pipe 3 is bent to the collector side within a header case 6, and is again bent to be connected to the radiation cylinder 5 at its lower part. By this procedure, the occupied area by the header can be reduced. Furthermore since the connected part betwen the pipe 3 and the radiation cylinder 5 comes rectangular with respect to the horizontal face, no liquid condensate stays within the radiation cylinder 5.

8. 发明专利

JPS57112648A SOLAR HEAT COLLECTOR 失效
公开(公告)号：JPS57112648A
公开(公告)日：1982-07-13
申请号：JP18848280
申请日：1980-12-29
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： KOTANI KOUICHI , SUMIDA ISAO , TSUKAMOTO MORIAKI , YAMAMOTO TAKANOBU , IMANI KAZUTAKE
IPC分类号： F24J2/50
摘要： PURPOSE:To enable to have a high heat collectivity at a heat collecting temperature of about 100 deg.C by a method wherein a space consisting of plural divided permeable substances is provided on the upper part of a heat collecting unit and is made vacuous. CONSTITUTION:A space having a triangle cross section is formed with a glass cover 1 and a corrugated glass 6. By making the space 7 vacuous a convection loss from a heat collecting tube 2 and a heat collecting plate 3 is reduced. A part of a sunlight 8 reflected with the corrugated glass 6 can be taken in a heat collector due to a triangle construction. Therefore, a heat collecting efficiency is improved and a glass construction strength can be enhanced through a triangle space.

9. 发明专利

JPS57112647A SOLAR HEAT COLLECTOR 失效
公开(公告)号：JPS57112647A
公开(公告)日：1982-07-13
申请号：JP18848180
申请日：1980-12-29
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： IMANI KAZUTAKE , TSUKAMOTO MORIAKI , SUMIDA ISAO , YAMAMOTO TAKANOBU
IPC分类号： F24S10/70
摘要： PURPOSE:To prevent incidence of a sunlight upon a heat collecting plate by applying a stress for deformation of a shape memorizing metal directly connected with a reflector while a heat collecting plate is overheated. CONSTITUTION:A reflector 3 is divided into two part, a shape remembering metal 4 is sticked on a heat collecting plate 2 with its one end fixed to the heat collecting plate, and the divided reflectors are connected with the metal 4, which are lifted up through spring force while a system is overeated. If the heat collector 2 is made of copper, the spring force of the shape remembering metal is actuated when the metal is overheated to a temperature of about 200 deg.C, and the reflectors 3 are restored to an original positon when its temperature goes down to a temperature of about 150 deg.C. The shape memorizing metal 4 can be wound round a heat collecting tube without dividing the reflector 3. An external control causes to make a system prevent overheating of the heat collecting plate 2 unnecessary,as the reflector 3 can be moved automatically depending on a temperature.

10. 发明专利

JPS5821095A HEAT INSULATING PIPING UNIT 失效
公开(公告)号：JPS5821095A
公开(公告)日：1983-02-07
申请号：JP11925181
申请日：1981-07-31
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： TSUKAMOTO MORIAKI , SUMIDA ISAO
IPC分类号： F16L59/14 , F16L59/147

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