Method and device for efficiently regenerating amine liquid by coupling heat pump

The invention relates to the technical field of energy and chemical industry, and particularly discloses a high-efficiency amine liquid regeneration method and device of a coupling heat pump, and the specific method is as follows: a stream of amine-rich liquid is subjected to heat exchange through a liquid heat exchanger and then is introduced into a regeneration tower for regeneration, carbon dioxide absorbed in the stream of amine-rich liquid is desorbed and separated, and carbon dioxide in the stream of amine-rich liquid is recycled; carbon dioxide and a lean amine solution are obtained; the other stream of amine-rich liquid is subjected to heat exchange through a gas-liquid heat exchanger and then introduced into a regeneration tower for regeneration, carbon dioxide absorbed in the stream of amine-rich liquid is desorbed and separated, and carbon dioxide and a lean amine liquid are obtained; wherein the lean amine solution desorbed and separated by the regeneration tower is at least introduced into the li