一种真空脱泡系统

Abstract

本实用新型涉及粘胶生产设备的技术领域，尤其涉及一种真空脱泡系统，包括脱泡桶、前置冷凝器、空气喷射器、真空泵、冷水循环组件和分布式控制装置；分布式控制装置包括控制单元、第一控制阀、第二控制阀和检测件，第一控制阀设置于空气喷射器与前置冷凝器之间，第二控制阀设置于空气喷射器的进气端，检测件设置于空气喷射器与前置冷凝器之间；通过检测件检测空气喷射器与前置冷凝器之间的压力，进而通过控制单元控制第一控制阀和第二控制阀的开度，使空气喷射器能够提供稳定的真空度，解决了真空脱泡系统由水环真空泵直接驱动空气喷射器，在较高的系统负载时，容易出现真空和温度波动，导致车间能耗高的技术问题，优化真空效率，减少车间能耗。

Claims

1. A vacuum deaeration system characterized by, It includes a degassing tank (100), a pre-condenser (200), an air ejector (300), a vacuum pump (400), a cold water circulation assembly (500), and a distributed control device (600); The degassing tank (100) is used to hold the adhesive containing air bubbles. The degassing tank (100) is connected to the pre-condenser (200). The two ends of the cold water circulation assembly (500) are respectively connected to the two ends of the pre-condenser (200). The suction end of the air ejector (300) is connected to the pre-condenser (200). The outlet end of the air ejector (300) is connected to the vacuum pump (400). The inlet end of the air ejector (300) is connected to the outside. The vacuum pump (400) is connected to the cold water circulation assembly (500). The distributed control device (600) includes a control unit (610), a first control valve (620), a second control valve (630), and a detection element (640). The first control valve (620) is disposed between the air injector (300) and the pre-condenser (200). The second control valve (630) is disposed at the air inlet of the air injector (300). The detection element (640) is disposed between the air injector (300) and the pre-condenser (200). The first control valve (620), the second control valve (630), and the detection element (640) are respectively connected to the control unit (610).

2. The vacuum devolatilization system of claim 1, wherein, The distributed control unit (600) also includes a backup conduit (650); One end of the backup pipeline (650) is connected to the pre-condenser (200), and the other end of the backup pipeline (650) is connected to the vacuum pump (400). A third control valve (660) is provided on the backup pipeline (650), and the third control valve (660) is connected to the control unit (610).

3. The vacuum devolatilization system of claim 2, wherein, The vacuum degassing system also includes a water collection tank (700); The top of the water collection tank (700) is provided with a vent (710), the air inlet of the air injector (300) is connected to the water collection tank (700), the second control valve (630) is provided between the air injector (300) and the water collection tank (700), the bottom of the water collection tank (700) is connected to the cold water circulation assembly (500), and the vacuum pump (400) is connected to the water collection tank (700).

4. The vacuum devolatilization system of claim 3, wherein, The cold water circulation assembly (500) includes a circulating water tank (510), a circulating water pump (520), and a heat exchanger (530); The water outlet end of the condenser is communicated with the circulating water bucket (510), the water outlet end of the water collecting tank (700) is connected with the circulating water bucket (510), one end of the circulating water pump (520) is connected with the circulating water bucket (510), the other end of the circulating water pump (520) is communicated with the water inlet pipeline of the heat exchanger (530), the water outlet pipeline of the heat exchanger (530) is connected with the water inlet end of the condenser, and the cold water pipeline (531) for heat exchange is arranged in the heat exchanger (530).

5. The vacuum devolatilization system of claim 3, wherein, A filtering device (711) is arranged at the breathing hole (710).

6. The vacuum devolatilization system according to any one of claims 1 to 5, characterized by, A defoaming net (110) is arranged in the defoaming bucket (100). A feeding port is arranged at the top of the defoaming bucket (100), and the defoaming net (110) is arranged at the feeding port.

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