Disclosed are a three-stage vane pump yarn-dyeing machine with an ultra-low liquor ratio and a method for controlling high temperature stream yarn-dyeing. The yarn-dyeing machine comprises a dye vat, a creel, a vane pump, and a creel disc at the bottom of the creel, wherein there are apertures in the creel disc that are in communication with a dye solution feeding channel in the dye vat; the vane pump is provided under the whole dye vat; the vane pump is a three-stage vane pump, a pump shaft of which is coaxially connected with a shaft of an internal electrical motor, an inlet of the three-stage vane pump being connected to the dye vat. The three-stage vane pump includes an axial flow stage, a centrifugation stage and a fixed flow guide vane stage, wherein the axial flow stage and the centrifugation stage are connected to the electrical motor via the same drive shaft in succession; the dye solution flows into the axial flow stage through an inlet channel; the dye solution exiting the axial flow stage enters directly a feed port of the centrifugation stage; and the dye solution exiting the centrifugation stage enters an outlet channel after passing through the fixed flow guide vane stage. The present invention enables a desired lift head when a dye solution in the yarn-dyeing machine is lower than a yarn spindle, achieving a low liquor ratio in the yarn-dyeing machine and the object of energy saving and emission reducing.
D06B 3/09 - Passage des matières textiles à travers des liquides, gaz ou vapeurs en vue d'effectuer un traitement, p. ex. lavage, teinture, blanchiment, encollage, imprégnation de filés, fils ou filaments sous forme de paquets, p. ex. de bobines croisées
D06B 23/04 - Supports pour les matières textiles à traiter
D06B 23/20 - Aménagements des appareils pour effectuer une opération sur les liquides, les gaz ou les vapeurs de traitement, p. ex. une purification, une filtration ou une distillation
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