| 摘要 |
1,177,168. Regulation of temperature and composition of a battery electrolyte supply. FINLAND, DEFENCE MINISTER OF. 12 Sept., 1967 [12 Sept., 1966], No. 41613/67. Heading H1B. [Also in Division G3] In a battery in which water and at least one other electrolyte component are fed into a mixer and thence as electrolyte through the cells of the battery, a first regulator controls the supply of the electrolyte components and hence the electrolyte composition so as to maintain a constant voltage output, a first duct supplies water directly from source to mixer and a second duct supplies water to the mixer via a heater, and a second regulator operated by a temperature sensor in the mixed electrolyte controls the proportions of water passing through the two ducts so as to maintain a preselected temperature in the mixed electrolyte. Preferably, a third regulator maintains the supply of water constant, despite variations in the voltage operating the supply pump. In Fig. 1 electrolyte is driven by pressure from vessel 3 from tank 1 to initiate the cell reactions; thereafter chromic acid and sulphuric acid are supplied from tanks 16 and 18 via pipes 17 and 19, and water from source 11 via pipes 12, 13, 14 and 15, by pumps P 2 , P 3 and P 1 respectively, to pipe 5 where they are mixed to form electrolyte, which is then passed through the two groups 6 and 9, joined by electrolyte duct 8, of cells having bipolar electrode plates 7 of zinc and carbon, and discharged through pipe 10; control 20 is a constant voltage regulator for pump P 1 to maintain constant water supply; pumps P 2 and P 3 are jointly regulated by control 21 responsive to the battery voltage; pipes 14 and 8 together form a countercurrent heat exchanger in which the water supply is heated by the electrolyte; a valve 22 adjusts the proportions of heated and unheated water entering the electrolyte and is operated by an electromagnet 23 actuated by control 24 which responds to the temperature, e.g. in pipe 5; water may continue to flow through pipe 14 to cool the electrolyte when valve 22 has closed this pipe, being discharged through an outlet simultaneously opened for this purpose. |
