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1. 发明专利

JPS58129190A HEAT PIPE 失效
公开(公告)号：JPS58129190A
公开(公告)日：1983-08-02
申请号：JP1157282
申请日：1982-01-29
申请人： HITACHI LTD , BABCOCK HITACHI KK , HITACHI CHEMICAL CO LTD
发明人： CHINEN MASANORI , TSUKAMOTO MORIAKI , KOTANI KOUICHI , SUMIDA ISAO
IPC分类号： F24J2/46 , F24S10/95 , F28D15/02
摘要： PURPOSE:To prevent the freezing and the breakage of a heat pipe by a method wherein a substance (e.g., fibers) capable of causing a capilary phenomenon to take place from the interior to the exterior of the heat pipe is arranged so that the liquid within the heat pipe is directed outside the pipe. CONSTITUTION:The substance, that is, a fibrous strand 14, which is capable of causing a capilary phenomenon to take place from one end of the heat pipe 12 to a liquid receiving tank 32 is provided. When the operation of the heat pipe 12 is stopped, the operation liquid 18 stored in one end of the heat pipe 12 permeates the fibrous strand 14 due to its surface tension and is transferred into the liquid receiving tank 32 through a sealed pipe 30. The fibrous strand 14 is shown extending up to the tank 32 but in practice, it is sufficient for the wick to extend only up to one end (the inlet port) of the sealed pipe 30 because if the tank 32 is arranged lower (closer to the ground) than a heat exchange section 20, then the falling of the operation liquid 20 due to gravity could by utilized.

2. 发明专利

JPS55116093A THERMAL LOGICAL ELEMENT 失效
公开(公告)号：JPS55116093A
公开(公告)日：1980-09-06
申请号：JP2194179
申请日：1979-02-28
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： IKEDA TAKASHI , KOTANI KOUICHI , UTAMURA MOTOAKI , YOKOYAMA IWAO , NAKAO SHIYUNJI
IPC分类号： F28D15/02 , F28D15/00
摘要： PURPOSE:To enable using a thermal flow itself as a manipulation variable by constitutiting a heating part or a cooling part by plural number of heat pipes with the routes of a thermal medium connected around one point as a center. CONSTITUTION:A thermal medium is evaporated at heating parts 1 and 2, and is condensed at cooling parts 3, 10 and 11. Moreover, a heat pipe is inclined with the heating parts 1 and 2 on the lower side. Accordingly, the thermal medium condensed at the cooling part flows into the heating part and works as the heat pipe. In this way, when one of the two heating parts 1 and 2 is heated, the produced vapor flows into either of the cooling parts 11 or 10, not flowing into the cooling part 3, thus maintaining a false state. When both heating parts 1 and 2 are heated concurrently, the produced vapor join at the forking part and flows into the cooling part 3, thus the part 3 turning in the true state. By changing the routes of the thermal medium with the flow of the thermal medium in this way, an AND arithmetic operation element can be obtained.

3. 发明专利

JPS5866752A SOLAR HEAT COLLECTOR 失效
公开(公告)号：JPS5866752A
公开(公告)日：1983-04-21
申请号：JP16422181
申请日：1981-10-16
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KOTANI KOUICHI , IKEDA TAKASHI , YOKOYAMA IWAO , NAKAO SHIYUNJI
IPC分类号： F24J2/32 , F24J2/24 , F24J2/46
摘要： PURPOSE:To prevent freezing of the titled collector and decrease the reduction of damage of a heat pipe vessel by evacuating a part of the vessel of the heat pipe. CONSTITUTION:A heat medium such as water or the like is sealed in the vessel 5 of the heat pipe which plays a role of a heat collecting part, and a hollow part 7 is provided in the vessel 5 in the vicinity of the liquid surface and the hollow part 7 is maintained in a vacuum or low-pressure state. By this arrangement, diffusion of heat can be prevented, and water freezes from the lower end and expands in the axial direction, whereby the damage of the vessel 5 can be prevented.

4. 发明专利

JPS56105295A MANUFACTURE OF HEAT PIPE 失效
公开(公告)号：JPS56105295A
公开(公告)日：1981-08-21
申请号：JP784880
申请日：1980-01-28
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： IKEDA TAKASHI , KOTANI KOUICHI , NAKAO SHIYUNJI , UTAMURA MOTOAKI , YOKOYAMA IWAO
IPC分类号： F28D15/02 , F28D15/00
摘要： PURPOSE:To eliminate an evacuation process, by a method wherein a flat heat pipe, whose one end is closed, is shaped, and after an operational medium is sealed, a mechanical strength is applied from the outside to deform into a heat pipe having a desired sectional shape. CONSTITUTION:A cylindrical pipe 1 is flatened by means of rolls 2, and after one end thereof is closed and air is exhausted, an operational medium 4 is poured into through the other end. So processed pipe is cut to a desired length to seal an open end. The work is fitted in semicircle frames 6 to form a section in a circle. This increases an inside measurement of a heat pipe container 3, and thereby the heat pipe container 3 is filled with vapour of the operational medium 4, which results in preventing interference of air. The evacuation process can thus be eliminated.

5. 发明专利

JPS5698404A PREPARATION OF HIGH HEAT CONDUCTIVE MATERIAL 失效
公开(公告)号：JPS5698404A
公开(公告)日：1981-08-07
申请号：JP128580
申请日：1980-01-11
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： IKEDA TAKASHI , KOTANI KOUICHI , NAKAO SHIYUNJI , UTAMURA MOTOAKI , YOKOYAMA IWAO
IPC分类号： B22F3/26 , B05D1/18 , F28F3/00 , F28F21/08
摘要： PURPOSE:To enable to produce a metallic material with excellent heat conductivity by a method wherein a heating medium is sealed in pores of a molded body made of a porous metallic material and, after heating, the surface pores are closed to use said pores as a heat pipe. CONSTITUTION:The porous metallic material 1 with 20-30% porosity produced by press-molding and sintering a metallic powder is placed in a hermetically closed container 2. Valves 3, 4 are opened and a vacuum pump is operated to evacuate an interior of the container 2 and, thereby, a gas present in the pores of the metallic material is removed by suction. Subsequently, the valves 3, 4 are closed and the heating medium 8 is placed in the container 2 by opening a valve 6 and, after filled in the gas pores of the metal material 1, exhausted from the container 2 as well as the metal material 1 is heated by a heater 9. After a part of the heating medium in the gas pores is evaporated, the pores at the surface are closed by plating treatment to produce the metallic material capable of being used as the heat pipe having high heat conductivity.

6. 发明专利

JPS5659191A HEAT PIPE 失效
公开(公告)号：JPS5659191A
公开(公告)日：1981-05-22
申请号：JP13425379
申请日：1979-10-19
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： IKEDA TAKASHI , KOTANI KOUICHI , YOKOYAMA IWAO
IPC分类号： F28D15/02 , F28D15/00
摘要： PURPOSE:To adjust the flow quantity of a working medium automatically corresponding to the environment of heat pipe use by mixing a hydrated crystalline substance with the working medium which transfers heat being evaporated and condensed in the heat pipe. CONSTITUTION:With a working medium 4 sealed in a heat pipe 1, a hydrated crystalline substance 5 of a quantity larger than its saturating solubility, for example, barium hydroxide 6 hydrate is mixed. By so composing, the crystals of the hydrated crystalline substance 5 dissolve as the temperature of the mixture rises, and the quantity of water in the working medium 4 increases. When the temperature drops, the hydrated crystalline substance crystallizes and the quantity of water decreases. By so doing, the quantity of the working medium is self-controlled to increase or decrease corresponding to the change of the working environment of the heat pipe 1.

7. 发明专利

JPS57196089A HEAT PIPE 失效
公开(公告)号：JPS57196089A
公开(公告)日：1982-12-01
申请号：JP8094081
申请日：1981-05-29
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KOTANI KOUICHI , IKEDA TAKASHI , KOIZUMI MAKOTO , YOKOYAMA IWAO , NAKAO SHIYUNJI
IPC分类号： F28D15/02 , F28D15/06
摘要： PURPOSE:To enable control of transportation of a quantity of heat, by controlling a shape of a wick having capillary action, in a captioned heat pipe transporting the heat through changes of phases, such as vaporization and condensation. CONSTITUTION:A wick 2A is secured in a glass made container 1 of a heat pipe extending from one edge up to the vicinity of the other edge, a wick 2B which is separated from a wick 2A is arranged inside the container 1 slidably in an axial direction, and the wick 2B is shifted by an electromagnet 3 located around the container 1. When the wick 2B touches the wick 2A, a liquid phase thermal medium can be transported by capillary action of these wicks extending from the one edge to the other edge of the container 1 as a continual wick 2, then it is possible to let this device operate as the heat pipe in itself. When the wick 2B, however, is separated from the wick 2A depending on a location of the electromagnet 3, the device does not become operative as the heat pipe.

8. 发明专利

JPS5767793A Heat pipe 失效
标题翻译：热管
公开(公告)号：JPS5767793A
公开(公告)日：1982-04-24
申请号：JP14298880
申请日：1980-10-15
申请人： Babcock Hitachi Kk , Hitachi Ltd
发明人： IKEDA TAKASHI , KOTANI KOUICHI , UTAMURA MOTOAKI , YOKOYAMA IWAO
IPC分类号： F28D15/02 , F28D15/00
CPC分类号： F28D15/046 , F24J2/32
摘要： PURPOSE: To raise the efficiency of heat collection in a heat pipe for solar energy collectors by forming grooves of a spiral or oblong locus which meets given requirements in the inner surface of the heat pipe.
CONSTITUTION: Spiral grooves 5 of a width b and a depth h are provided in the inner surface of a heat pipe with an inside radius R at an angle of θ of the axle of the heat pipe in such a way as to meet given requirements under the conditions of heat pipe setting angle α, working liquid density ρ
l , working liquid surface tension δ
l , and gravity acceleration g. Thus, the supply of working liquid onto the upside of the heating portion of the heat pipe is accelerated and therefore, the efficiency of heat collection is raised. For the equation, b is the width of groove, h is the depth of groove, θ is the angle of the groove to the axle of the pipe, R is the inside diameter of the pipe, α is the setting angle of the heat pipe, ρ
l is the density of working liguid, σ
l is surface tension of working liquid, and g is gravity acceleration.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过形成满足热管内表面规定要求的螺旋或长方形轨迹的槽，提高太阳能收集器热管中的热收集效率。构成：宽度b和深度h的螺旋槽5设置在热管的内表面，其内径半径R以热管轴的角度θ设置，以满足以下要求：热管设定角度α，工作液体密度，工作液体表面张力和重力加速度g的条件。因此，加热了热管的加热部的上侧的工作液的供给，因此能够提高集热效率。对于等式，b是槽的宽度，h是槽的深度，θ是槽与管的轴的角度，R是管的内径，α是热管的设定角，rhol是工作液体的密度，sigmal是工作液体的表面张力，g是重力加速度。

9. 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.

10. 发明专利

JPS60135890A NATURAL CIRCULATION TYPE NUCLEAR REACTOR 失效
公开(公告)号：JPS60135890A
公开(公告)日：1985-07-19
申请号：JP24402083
申请日：1983-12-26
申请人： HITACHI LTD
发明人： KASHIWAI SHINICHI , KOTANI KOUICHI , MURATA SHIGETO , MASUHARA YASUHIRO , NAKAO SHIYUNJI
IPC分类号： G21C1/08

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