Please provide the calculation process
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The pressure of the gas at the liquid level in the solution regeneration tower is 30 kPa, the density of the solution is 1200 kg/m3, the vertical distance from the bottom of the tower to the pressure measurement point at the inlet of the lean liquid pump is 4 m, and the pressure at the inlet of the lean liquid pump is 118 kPa. Therefore, the liquid level in the regeneration tower is approximately ( ) m. Answer: 3.5 m
According to the question, the difference between the inlet pressure of the lean liquid pump and the liquid level pressure in the solution regeneration tower represents the head loss of the medium from the pump to the transfer point. Therefore: (118-30) X 1000 = 1200; Height of lift = 1200 / 9.8 = 7.48 meters. The height of lift is equal to the length of the pump pipeline plus the height from the bottom of the tower to the liquid level in the tower. The liquid level height is equal to the height of lift minus the length of the pump pipeline and the height from the bottom of the tower, that is, 7.48 – 4 = 3.48 meters