in a hermetically circulating absorption type refrigerator including a regenerator , a condenser , an evaporator , an absorber and a heat exchanger , the regenerator has an absorbing solution heating tube flux provided between tube plates . the tube plates are encased within a shell of the regenerator . non - soluble electrodes are arranged between each of the tube plates and the shell . then , an anti - corrosive current is made to flow through at least one of an end portion of the heating tube , the tube plates and the shell to thereby enhance the anti - corrosion effect together with an anti - corrosive agent or inhibitor .