On-line detection method for siphon tube damage of steam drying cylinder

Abstract

The invention discloses an on-line detection method for the damage of a siphon tube of a steam dryer, comprising: a. setting three data storage units in the data storage area of ​​the electric controller; b. the electric controller collects temperature sensor data every T seconds , calculate the average value and store it in the D (pre) data storage unit; c. The electric controller continues to collect the temperature sensor data at intervals of T seconds, and calculates the average value of several data that continue to be collected and stores it in D ( cur) data storage unit; d, compare the value stored in the D (cur) data storage unit with the value stored in the D (pre) data storage unit; e, the electric controller judges the value stored in the P (cou) data storage unit The cumulative value; the invention can detect the damage of the siphon in time and alarm to remind the staff to replace it immediately, effectively preventing the condensed water from being discharged, reducing the steam consumption, improving the drying efficiency, and avoiding various accidents.

Description

technical field [0001] The invention relates to a method for detecting the safety performance of internal parts of a steam drying cylinder, in particular to an on-line detection method for the damage of a siphon tube used in a steam drying cylinder, and belongs to the technical field of textile dyeing and finishing processes. Background technique [0002] Textile printing and dyeing enterprises use steam drums to heat and dry fabrics with water, and the condensed water in the steam drums affects the heat exchange efficiency. It is necessary to discharge the condensed water through the siphon in time to improve the thermal efficiency of the steam drum drying equipment, thereby saving steam consumption. , Reduce energy consumption. [0003] The siphon tube installed in the inner cavity of the steam dryer is usually made of metal. Under working conditions and long-term use, it will undergo chemical or electrochemical reactions with condensed water and cause corrosion or even da...

AI Technical Summary

Problems solved by technology

When the siphon tube is damaged, the condensed water cannot be discharged, which will cause the condensed water to accumulate in the steam dryer to form water hammer, which will aggravate the wear of the pipe wall, valves and joints, increase maintenance costs and downtime, and accumulate condensed water in the steam dryer Finally, it will increase the weight of the steam drying cylinder, which will cause safety hazards when rotating at high speed; and the condensed water will not be discharged, which will seriously affect the heat exchange effect of the steam drying cylinder, increase the drying time of the fabric, and will lead to large steam consumption and poor energy efficiency. , Increased operating costs, affecting production capacity enhancement

Due to the uncertainty of factors such as the temperature of condensed water, the content of ions, and dissolved oxygen, the time for the corrosion point to become deeper and larger, the formation of ulcer pits, and the formation of through holes in the siphon tube is also uncertain. In addition, due to steam drying Due to the vibration when the cylinder rotates, the bending part of the siphon tube is prone to gradually produce local permanent cumulative damage, resulting in cracks or sudden complete fracture. Therefore, an online detection method for siphon tube damage is urgently needed to detect damage in time and prevent the above accidents. happened

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