薄膜蒸发器

Abstract

本实用新型公开了薄膜蒸发器，包括转动筒、上固定环、下固定环、外筒体、物料进口、物料出口、二次蒸汽出口、进热媒管、出热媒管和驱动机构，所述转动筒呈圆筒状，转动筒与一个驱动机构相连，驱动机构带动转动筒绕着转动筒的中轴线转动，所述转动筒顶壁中心转动安装有进热媒管，转动筒底壁中心转动安装有出热媒管，所述转动筒的外壁上转动安装有上固定环和下固定环，上固定环和下固定环之间夹有外筒体，外筒体套在转动筒的外部，外筒体内壁、转动筒外壁、上固定环和下固定环共同构成一个蒸发腔；本实用新型通过将进热媒管、出热媒管设置在位于内部的转动筒上，使得热媒的热量可得到有效的利用，可有效的降低薄膜蒸发器的能耗。

Claims

1. Thin film evaporator, characterized in that: The device includes a rotating cylinder (1), an upper fixed ring (2), a lower fixed ring (3), an outer cylinder (4), a material inlet (47), a material outlet (31), a secondary steam outlet (46), a heat inlet pipe (11), a heat outlet pipe (12), and a drive mechanism. The rotating cylinder (1) is cylindrical and connected to a drive mechanism. The drive mechanism drives the rotating cylinder (1) to rotate around the central axis of the rotating cylinder (1). The heat inlet pipe (11) is rotatably installed at the center of the top wall of the rotating cylinder (1), and the heat outlet pipe (12) is rotatably installed at the center of the bottom wall of the rotating cylinder (1). The upper fixed ring (2) and the lower fixed ring (3) are rotatably installed on the outer wall of the rotating cylinder (1), and the outer cylinder is sandwiched between the upper fixed ring (2) and the lower fixed ring (3). The outer cylinder (4) is fitted around the outside of the rotating cylinder (1). The inner wall of the outer cylinder (4), the outer wall of the rotating cylinder (1), the upper fixing ring (2) and the lower fixing ring (3) together form an evaporation chamber. The outer cylinder (4) is provided with a secondary steam outlet (46) and a material inlet (47). The secondary steam outlet (46) and the material outlet (31) are both connected to the evaporation chamber. The secondary steam outlet (46) is located above the material inlet (47). The lower fixing ring (3) is provided with a material outlet (31). The material outlet (31) is connected to the evaporation chamber. A baffle ring (15) is fixed on the outer wall of the rotating cylinder (1). The baffle ring (15) is higher than the material inlet (47) and lower than the secondary steam outlet (46).

2. The thin film evaporator of claim 1, wherein: The outer cylinder (4) is composed of a first cylinder (41), a second cylinder (42), a third cylinder (43), a fourth cylinder (44), and a fifth cylinder (45) connected sequentially from top to bottom. The inner diameter of the first cylinder (41) and the inner diameter of the fifth cylinder (45) are both larger than the inner diameter of the third cylinder (43). The inner diameter of the second cylinder (42) gradually decreases from top to bottom, and the inner diameter of the fourth cylinder (44) gradually increases from top to bottom. The secondary steam outlet (46) is located on the first cylinder (41), the material inlet (47) is located on the third cylinder (43), and the baffle ring (15) is located within the area enclosed by the first cylinder (41).

3. The thin film evaporator of claim 1, wherein: The lower end face of the flow-blocking ring (15) is a conical surface, and the outer diameter of the lower end face of the flow-blocking ring (15) gradually decreases from top to bottom.

4. The thin film evaporator of claim 1, wherein: The outer cylinder (4) has an upper protruding ring (20) at the top of its outer wall. The upper protruding ring (20) is fixed to the upper fixed ring (2) by a number of bolts. The outer cylinder (4) has a lower flange at the bottom of its outer wall. The lower flange is fixed to the lower fixed ring (3) by a number of bolts. Sealing rings are sandwiched between the upper end face of the outer cylinder (4) and the upper fixed ring (2), and between the lower end face of the outer cylinder (4) and the lower fixed ring (3).

5. The thin film evaporator of claim 1, wherein: The inlet heat medium pipe (11) is rotatably mounted on the top wall of the rotating cylinder (1) through a sealed bearing, and the outlet heat medium pipe (12) is rotatably mounted on the bottom wall of the rotating cylinder (1) through a sealed bearing. The upper fixing ring (2) and the lower fixing ring (3) are both mounted on the outer wall of the rotating cylinder (1) through sealed bearings.

6. The thin film evaporator of claim 1, wherein: The upper end face of the upper fixed ring (2) and the upper end face of the rotating cylinder (1) are on the same horizontal plane, and the lower end face of the lower fixed ring (3) and the lower end face of the rotating cylinder (1) are on the same horizontal plane.

7. The thin film evaporator of any one of claims 1-6, wherein: The driving mechanism is a rotating mechanism driven by an eccentric wheel (61). The driving mechanism consists of a motor (6), an eccentric wheel (61), and a fixed column (62). The fixed column (62) is fixed on the upper end face of the rotating cylinder (1). The fixed columns (62) are evenly distributed on a circle coaxial with the rotating cylinder (1). The output shaft of the motor (6) is connected to an eccentric wheel (61). The eccentric wheel (61) is located between two adjacent fixed columns (62).

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