N-butyl acetate raw material finished product storage tank nitrogen sealing device

Abstract

The invention provides an N-butyl acetate raw material finished product storage tank nitrogen sealing device. The N-butyl acetate raw material finished product storage tank nitrogen sealing device ischaracterized by comprising a nitrogen main pipe, a metering tank, a nitrogen input pipe, a storage tank, a nitrogen output pipe, a positive pressure preventing tank and a tail gas pipe; the input endof the metering tank communicates with the nitrogen main pipe, and the output end of the metering tank communicates with the storage tank through the nitrogen input pipe; the storage tank communicates with the positive pressure preventing tank through the nitrogen output pipe, and the positive pressure preventing tank communicates with the tail gas pipe; and an air inlet control valve is arrangedon the nitrogen input pipe, and the tail gas pipe is provided with a nitrogen self-actuated regulator. According to the N-butyl acetate raw material finished product storage tank nitrogen sealing device, multiple protection is arranged from the nitrogen inlet end to the nitrogen discharging end, stability and safety of the overall device can be kept, automatic control over nitrogen input and discharging is achieved on the premise of safe running of the storage tank is guaranteed, and the nitrogen is effectively saved.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, and in particular relates to a nitrogen sealing device for storage tanks of n-butyl ester raw material and finished products. Background technique [0002] In the prior art, the n-butyl ester raw material and finished product storage tank passes nitrogen gas into the positive pressure prevention tank through a small flow rate, and the tail gas pipeline is sealed with nitrogen to prevent air from entering the tank and forming an explosive mixture when the storage tank is discharged. This control scheme can ensure the safety of the storage tank, but it causes a serious waste of nitrogen. In addition, the nitrogen blanketing device in the prior art needs to manually control the input and output of nitrogen gas, which is inconvenient to operate and is likely to cause safety accidents. Therefore, it is necessary to improve the nitrogen blanketing device of the finished n-butyl ester raw mat...

AI Technical Summary

Problems solved by technology

[0003] Based on the above prior art, the object of the present invention is to provide a nitrogen blanketing device for n-butyl ester raw material finished product storage tanks to solve the serious waste of nitrogen in the process of n-butyl ester raw material finished product storage tank nitrogen blanketing in the prior art

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