Steam lock relieving device of steam system drain valve

Abstract

The invention relates to a steam lock relieving device of a steam system drain valve. The device comprises a steam drying cylinder, a siphon pipe, a steam rotating joint, a drain pipe and a drain valve; a steam rotating joint is mounted on the steam drying cylinder; one end of the steam rotating joint is connected with one end of the siphon pipe, and the other end is connected with one end of the drain pipe; one end of the drain pipe is communicated with the siphon pipe through the steam rotating joint, and the other end is communicated with a water inlet of the drain valve; the drain valve has a water outlet; and the steam rotating joint has a steam inlet. The device is characterized in that a steam lock relieving mechanism is arranged on a pipeline of the siphon pipe or the drain pipe. The device can automatically stop steam from flowing to the drain valve to lower the internal temperature of the drain valve in the non-drain period, and can automatically relieve the stop in the drain period to timely enable the drain valve to carry with the steam lock relieving device to relieve the steam lock so as to drain condensed water continuously generated in the steam drying cylinder.

Description

technical field [0001] The invention specifically relates to a device for releasing steam locks of steam traps in a steam system, belonging to the technical field of textile dyeing and finishing. Background technique [0002] At present, when textile printing and dyeing enterprises use steam as a heat source to exchange heat with the object to be heated, condensed water will continue to be generated from the steam transmission pipeline to the steam at the steam end to exchange heat with the object to be heated. The accumulation of condensed water in the steam transmission pipeline will not only fail to obtain unsaturated steam at the steam end, but also cause water hammer accidents; when using a steam dryer to dry fabrics with water, due to the steam dryer and belt Water fabrics are used for heat exchange, but condensed water will continue to be generated in the steam dryer, which will easily form water hammer, aggravate the wear of pipe walls, valves and joints, increase ma...

AI Technical Summary

Problems solved by technology

However, in the actual working process, the steam trap and the ball float trap are filled with high-temperature steam, and the temperature is much higher than 80 degrees. The steam lock release device of the valve cannot release the steam in the drain pipe in time, that is, the steam lock cannot be released in time, causing the condensed water in the steam transmission pipeline and the steam drying cylinder to be locked by the steam lock and cannot be discharged through the float trap. There are potential safety hazards; condensed water cannot be discharged, which affects the heat exchange effect of the dryer, increases the drying time, consumes a lot of steam, lowers energy utilization, increases operating costs, and affects production capacity.

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