NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY (Japon)
Inventeur(s)
Sakurazawa, Shunji
Morita, Motoaki
Abrégé
A fluid container that can prevent a container from being in contact with a heat source fluid and stably hold the heat source fluid, even if corrosive, in the container to perform heat recovery and the like. A first fluid and a second fluid are both allowed to flow into and out of a container body 10. The second fluid is supplied into the container body by a second fluid supply unit 30 to form a layer of the second fluid flowing down along an inner surface of the container body 10, causing the second fluid to be interposed between the first fluid and the inner surface of the container body. This eliminates deterioration of the container body due to corrosion of the container body by the fact that the first fluid has contact with the inner surface of the container body, as well as scale precipitation from the first fluid.
Provided is a water intake device that reduces the installation cost of a water intake pipe and avoids the risk of pump stoppage. The water intake device 1 comprises a water intake pipe 20 extending from near a water surface to a water intake depth, a submerged pump 30 connected to a lower end of the water intake pipe 20, a gas passage part 40 that supplies gas to the submerged pump 30, and a power supply cable 41 that supplies power to the submerged pump 30. The water intake pipe 20 has flexibility. The gas passage part 40 supplies, to a gas-filled chamber 33 housing a part or the whole of a motor 32, a gas for adjusting the pressure difference between the gas-filled chamber and a pump chamber 35 that feeds water to the water intake pipe 20. The gas passage part 40 and the power supply cable 41 are inserted into the water intake pipe 20.
E03B 3/04 - Procédés ou installations pour obtenir ou recueillir de l'eau potable ou de l'eau courante à partir d'eau de ruissellement
F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY (Japon)
Inventeur(s)
Sakurazawa Shunji
Morita Motoaki
Abrégé
Provided are a fluid container and a heat exchange device, wherein: by preventing the container from coming into contact with a heat source fluid, even a corrosive heat source fluid is stably held in the container, and heat recovery and the like can be performed; and a state in which the degradation of the inside of the container is unlikely to occur can be easily ensured without using high-cost members, thereby suppressing manufacturing costs. While a first fluid and a second fluid can be introduced and discharged into and from a container body 10, a second fluid supply unit 30 supplies the second fluid into the container body, and a layer of the second fluid flowing down along the inner surface of the container body 10 is formed, so that the layer of the second fluid is interposed between the first fluid inside the container body and the inner surface of the container body. Therefore, it is possible to suppress degradation of the container body 10 due to corrosion of the container body caused by the first fluid introduced into the container body coming into contact with the inner surface of the container body 10 and due to scale precipitation from the first fluid, and thus the first fluid can be present inside the container body without any problem.
This desalination and temperature difference power generation system achieves effective usage of temperature difference energy and enhances the performance of the entire system. A plurality of steam motive power cycle units are provided that cause a phase change of a working fluid to obtain motive power for power generation, and an evaporator 11 of one steam motive power cycle unit 10 is supplied with, as a high temperature fluid, steam obtained by evaporating warm seawater with an evaporating means of a seawater desalination device 60, and an evaporator 21 of another steam motive power cycle unit 20 is supplied with, as a high temperature fluid, the residual seawater not evaporated by the evaporating means, and these evaporators respectively evaporate working fluid. Thus, the one steam motive power cycle unit 10 forms a hybrid cycle, the other steam motive power cycle unit 20 forms a closed cycle, and the other steam motive power cycle unit 20: inhibits heat loss on the high temperature fluid side, thereby making it possible to ensure heat that can be effectively used; and additionally, uses residual seawater in a deoxygenation state, thereby making it possible to achieve a state in which biological fouling is unlikely to occur in the evaporator 21.
Provided is a heat exchanger wherein a heat exchange unit formed by assembling plates is arranged with a suitable orientation inside a shell, a heat exchange between a gas-phase high-temperature fluid and a liquid-phase low-temperature fluid is carried out reliably, and evaporation of the low-temperature fluid and condensation of the high-temperature fluid can be made to proceed in parallel efficiently. This heat exchanger 10, which carries out a heat exchange between water vapor and a steam-power-cycle working fluid and serves as both a condenser for condensing water vapor and an evaporator for evaporating a working fluid, has a configuration wherein a heat exchange unit 11, in which a plurality of heat exchange plates have been integrated side by side, is arranged inside a shell 12, thereby alternately producing, between the heat exchange plates arranged side by side, flow passages through which the water vapor flows and flow passages through which the working fluid flows. The working fluid is evaporated and the water vapor is condensed by making the water vapor and working fluid flow through the respective flow passages such that the flows thereof are orthogonal to each other. Thus, the size of the heat exchange unit 11 can be reduced while enabling a heat exchange to be carried out via the heat exchange plates, and the overall size of a system containing the heat exchanger 10 can be reduced.
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
B01D 5/00 - Condensation de vapeursRécupération de solvants volatils par condensation
C02F 1/04 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage par distillation ou évaporation
C02F 1/06 - Distillation par évaporation dite évaporation "flash"
F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther
F28B 1/02 - Condenseurs dans lesquels la vapeur d'eau ou autre vapeur est séparée de l'agent de refroidissement par des parois, p. ex. condenseur à surface utilisant l'eau ou un autre liquide comme agent de refroidissement
F28F 3/08 - Éléments construits pour être empilés, p. ex. pouvant être séparés pour leur nettoyage
The present invention is a heat exchanger system capable of heat exchange by smoothly introducing heat exchanging fluid in large quantity even if many plate heat exchangers are disposed, and capable of reducing the facility cost without causing a piping problem. A partition wall (12) is disposed by being bonded to a heat exchanger body (10), and a through hole (12a) through which the heat exchanging fluid passes is formed through the partition wall (12). The heat exchanging fluid is circulated between areas partitioned by the partition wall (12) and is introduced into a second flow path of the heat exchanger body (10). Therefore, piping need not be installed on the side of the heat exchanging fluid, thereby reducing the cost of piping installation. It is also possible to save the installation space for piping and to eliminate the need for work that involves handling pipes. A pressure-resistant vessel for isolating flow paths from the outside is not provided around the heat exchanger body (10), making the heat exchanger body (10) very easily accessible. It is therefore possible to reliably perform the maintenance work such as inspection and cleaning of the heat exchanger body (10).
F28D 1/03 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide avec des canalisations en forme de plaques ou de laminés
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
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