| 摘要 |
PURPOSE:To make uniform temperature distribution at the upper and lower parts of an electrolyte to prevent deterioration of a plate especially a negative plate by immersing in the electrolyte a lead or lead alloy pipe which contains an aqueous solution which does not corrode a lead material such as water, dilute sulfuric acid, and its both ends are sealed. CONSTITUTION:A pipe 4 comprising lead-antimony alloy contains dilute sulfuric acid 5 and its both ends are sealed. Excess amount of dilute sulfuric acid is filled in the pipe 4 under a reduced pressure. The pipe 4 is placed in vertical direction so as to its most part is immersed in an electrolyte. Dilute sulfuric acid inside the pipe 4 evaporates at high temperature part and condenses at low temperature part to transfer heat. Other aqueous solution which do not corrode lead may be filled in the pipe 4 instead of dilute sulfuric acid. Both surfaces of the pipe 4 may be covered with other thin materials if heat conductivity is not decreased remarkably. |
