System Model of Heat and Mass Transfer Process for Mobile Solvent Vapor Phase Drying Equipment

Table 1

Symbol definition in the simplified calculation process model of MVPD system.

Process units	Process logistics
(A) Solvent storage tank	(1) Liquid solvent enters into the evaporator
	(2) Solvent vapor enters into transformer tank and starts to heat transformer
(B) Evaporator	(3) Mixed gas enters into condensation system and condenses
(C) Condenser	(4) Leakage pump system evacuates the transformer tank through condensation system
(D) Transformer	(5) Solvent condensed by condensation system returns evaporator and is reused
(E) High vacuum system	(6) Condensed liquid solvent flows into evaporator from the bottom of transformer tank and is reused
(F) Leakage pump system	(7) High vacuum system vacuumizes the transformer tank to drain out condensed water