Improved industrial equipment for large-scale storage of electrical energy
A device, a technology for storing electrical energy, applied in circuits, electrolytes, fuel cells, etc., to solve problems such as increasing the storage capacity of traditional batteries
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example 1
[0119] A) Equipment
[0120] use figure 2 device shown in. The lower steel drum (1 ) with inner liner (2) has a nominal capacity of 200 liters and dimensions D=580mm and H=860mm. The sodium reservoir (4) arranged above the lower steel drum has dimensions D=580mm and H=400mm. From β″-Al 2 o 3 121 ceramic tubes fabricated and closed at the bottom are immersed in the lower steel drum (1) (2). The ceramic tube has dimensions Da=24mm, Di=20mm, L=820mm.
[0121] Sodium, 83 liters in total, in tube and sodium reservoir. Sulfur with a net volume of 145 liters flows in the lower drum and around the tubes. Each ceramic tube has a negative power inlet lead (12) located inside. These power inlet leads are protected against short circuits by fuses and attached at the top to a common collector rail (14). The positive power inlet lead (15) is arranged between the ceramic tubes and contacts the graphite non-woven fabric fixed around the ceramic tubes. Each ceramic tube with two redo...
example 2
[0129] A) Equipment
[0130] The 43 drum units described in Example 1 were placed in a 40' container. The drum units are electrically connected in series by aluminum rails. In this way, the open circuit voltage rises to 89.4 volts. A 4-quadrant thyristor rectifier DC-AC converter (10000A, 120 Volts) is used which enables controlled charge-discharge and charge of the drum unit. The electrical connections are made via aluminum rails.
[0131] B) prepare
[0132] All 43 drum elements were heated to 290°C before being charged with liquid sodium and liquid sulfur. The temperature is maintained within ±10K by adjusting the heat transfer medium circuit in the heat exchange tube (16) to a suitable temperature.
[0133] C) Charging / discharging
[0134] In automatic operation, the elementary assembly was subjected to 1000 charge / discharge cycles. In each case a discharge of more than 10 hours and a subsequent charge of more than 10 hours were carried out. The discharge power is ...
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