Natural gas drain valve capable of draining water continuously

• Main Authors: PENG QIYONG, WANG HAIBO, WU MING
• Format: Patent
• Language: English
• Published: 27.01.2016
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROMENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention relates to a natural gas drain valve capable of draining water continuously. The natural gas drain valve is composed of a valve body and double valve elements. The large valve element is mounted in a cavity of the valve body through a guide rail. When the large valve element floats, separated liquid is drained from a separated liquid outlet through drain holes of the guide rail. A small drain function module is in a normally open state when a large drain function module works, and the small drain function module can remove accumulated water generated when the drain valve is out of operation. The drain quantity of the drain valve is adjusted automatically, and continuous draining can be achieved, so that the production safety of a gas field and stable operation of equipment are guaranteed.