Paper machine drying cylinder with fixed siphon apparatus

Abstract

The invention discloses a paper machine drying cylinder with a fixed siphon apparatus. The paper machine drying cylinder comprises a drying cylinder and the siphon apparatus; one end of a siphon pipe of the siphon apparatus is positioned in the drying cylinder, and the other end of the siphon pipe is positioned outside the drying cylinder; and the siphon pipe is divided into two parts, namely a vertical pipe and a horizontal pipe, wherein the end of the vertical pipe is contacted with the inner wall of the drying cylinder. The end of the vertical pipe is provided with a siphon nozzle. The paper machine drying cylinder also comprises a joint shell locking device, and the siphon pipe passes through the joint shell locking device. A fixed frame is arranged between the vertical pipe and the horizontal pipe. The drying cylinder is provided with a sealing cover, and the siphon pipe passes through the sealing cover. The cantilever type fixed siphon apparatus is adopted, and the joint shell locking device enables the horizontal siphon pipe to be well positioned, so transverse load is avoided; and vibration and deflection can be effectively reduced by good support of the vertical siphon pipe, so the fault rate of the siphon apparatus of the drying cylinder can be greatly reduced, the running efficiency of a paper machine is improved, steam leakage of the paper machine is reduce, the heat conduction efficiency of the drying cylinder is improved, and the consumption of steam is saved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a paper machine drying cylinder with a fixed siphon. Background technique [0002] Drying is an essential step in the papermaking process. When the water in the drying cylinder reaches a certain level, it will seriously affect the heat transfer of the paper machine drying cylinder, the rotation of the drying cylinder, the mechanical strength of the frame, etc., and even cause the disorder of the steam condensate system in the drying section. In the prior art, a rotary siphon is used to deal with this problem. The siphon nozzle is welded on the vertical tube of the siphon, and in the opposite direction, the spring-supported pressure plate tightly fixes the siphon on the top of the drying cylinder. The siphon rotates with the dryer cylinder. Since the siphon tube of the rotary siphon swings with the rotation of the drying cylinder, it is very easy to damage the sealing ring a...

AI Technical Summary

Problems solved by technology

Since the siphon tube of the rotary siphon swings with the rotation of the dryer, it is easy to damage the sealing ring and cause damage to the steam head and steam leakage, resulting in high maintenance costs, low production efficiency, and high steam consumption.

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