| 摘要 |
PROBLEM TO BE SOLVED: To provide a concentration system devised to prevent a decrease in efficiency of heat transfer to an evaporation surface and dirt of heat-radiating heat exchanger while aiming at an improvement in thermal efficiency.SOLUTION: A concentration system comprises a concentrator 2 that evaporates a solvent component to concentrate a treatment target liquid by being contacted to the treatment target liquid with an evaporation face 221a heated by vapor, a capacitor 4 that cools solvent vapor, an evaporator 3 that produces vapor by heating drain, a heat pump 5 having a heat-absorbing heat exchanger 51 and a heat-radiating heat exchanger 52, a first circulation flow passage 61 that is a cooling water passage and couples the capacitor 4 with the heat-absorbing heat exchanger 51, and a second circulation flow passage 2 that is a heated water passage and couples the heat-radiating heat exchanger 52 with the evaporator 3. The evaporator 3 is separately provided with a cylinder side S3 where the heated water passes within a production space S4 that produces vapor from supplied drain to heat the drain within the production space S4 with the heated water passing through the cylinder side S3.SELECTED DRAWING: Figure 1 |
