Thin film evaporator
An evaporator and thin-film technology, which is applied in the field of thin-film evaporators, can solve problems such as safety risks and elevations, and achieve the effect of ensuring safety
Inactive Publication Date: 2018-04-27
PANZHIHUA DUOSHI MACHINERY MFG
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- Application Information
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Problems solved by technology
Acetic anhydride gas reacts violently with water, releasing a large amount of heat, forcing the pressure in the container to rise sharply in a short period of time, creating a safety risk
Method used
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Embodiment Construction
[0010] The present invention and its embodiments will be further described below in conjunction with the accompanying drawings.
[0011] like figure 1 As shown, the present invention comprises a cylinder body 1, a stirring motor 2, a jacket heating device 3, a safety control valve 4, a feed port 5, a discharge port 6, and a water inlet 7, and the stirring motor 2 is arranged on the top of the cylinder body 1 for The stirring device inside the barrel 1 provides power, the jacket heating device 3 is set on the outer wall of the barrel 1 for heating, and the top side wall of the barrel 1 is provided with an inlet 5 and an air outlet, and the inlet 5 and the outlet are oppositely arranged , the position of the air outlet is higher than that of the feed port 5, the safety control valve 4 is arranged at the air outlet, the discharge port 6 is arranged at the bottom of the cylinder 1, the top plate of the cylinder 1 is provided with a water inlet 7, and a pressure control valve 8 is ...
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The invention relates to a thin film evaporator and belongs to the technical field of chemical equipment. The thin film evaporator includes a barrel body, a stirring motor, a jacket heating device, asafe control valve, a feeding inlet, a discharging outlet and a water adding inlet. The stirring motor is arranged at the top of the cylinder body and provides power for the stirring device in the barrel body. The jacket heating device sleeves the outer wall of the barrel body and is used for heating. The side wall of the top of the barrel body is provided with the feeding inlet and a gas outlet,the feeding inlet and the gas outlet are opposite, the gas outlet is higher than the feeding inlet, the safe control valve is arranged at the gas outlet, the discharging outlet is arranged at the bottom of the barrel body, and the top plate of the barrel body is provided with the water adding inlet. The thin film evaporator also comprises a pressure control valve. The pressure control valve is connected to the side wall of the top of the barrel body through a connection pipe and the joint is higher than the feeding inlet. In cleaning, water is lowly added into the thin film evaporator throughthe water adding inlet. Before water adding, a part of the pressure control valve is manually opened and the pressure control valve is controlled according to the gas outlet conditions so that gas inthe barrel body can be timely discharged and the safety is ensured.
Description
technical field [0001] The invention relates to a thin-film evaporator, which belongs to the technical field of chemical equipment. Background technique [0002] Thin-film evaporator is a common equipment for recovery of acetic anhydride. During the production of acetic anhydride, it is necessary to regularly discharge the evaporating liquid from the refined acetic anhydride evaporator, so as to remove the tar impurities in the refined acetic anhydride, and the discharged evaporating liquid needs to recover most of the acetic anhydride present in it; The acetic anhydride is realized in the thin-film evaporator. The evaporator system is heated by steam, and the acetic anhydride is recovered under certain negative pressure conditions. The most important factors affecting the recovery effect are temperature, pressure, and agitator. operating current. When a certain factor changes after running for a certain period of time, the evaporator needs to be cleaned and checked to ens...
Claims
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IPC IPC(8): B01D1/22B01D1/00
CPCB01D1/22B01D1/0082
Inventor 鲍建平万羽王家信
Owner PANZHIHUA DUOSHI MACHINERY MFG