摘要:
A connector connects auxiliary flow lines and electrical lines that extend through and terminate at or near opposing ends of two respective components of a downhole tool string. The connector comprises a body assembly for fluidly-connecting the auxiliary flow lines and electrically-connecting the electrical lines of the respective two components, and an assembly for adjusting the length of the body assembly. The two components are discrete modules of a unitary tool, or alternatively, are distinct tools. Additionally, the connector may include a mechanism for closing the auxiliary flow lines of one or both compartments upon disconnection of the fluid connection between the two components.
摘要:
A gas-operated valve actuator having a gas operated motor, a mechanism for disengaging the valve's manual operation apparatus, and a device for quickly shutting off the actuator when the valve's drive shaft reaches its travel limit.
摘要:
An actuator has been developed for actuating a valve for controlling fluid flow in a conduit, the actuator having, in one aspect a housing with a main interior housing space, a rod with a mid-portion, a top end and a bottom end, the mid-portion movably disposed in the housing, the bottom end movably extending from the housing and interconnected with the valve, a first piston member secured to the rod and movable in the housing as the rod moves, a second piston member movably disposed in the housing above the first piston member, the second piston member movable to contact the first piston member, first power apparatus for moving the rod to open or close the valve, and second power apparatus for moving the second piston member to contact the first piston member moving the first piston member and the rod to close the valve. In one aspect the rod has a stop shoulder above the first piston member, and the second piston member is movable to contact the stop shoulder to move the rod. Valve systems have been developed which include a valve and such an actuator. Such actuators and systems may employ various structures, housings, and seals and various noted power supplies so that during operation no fluid from within the valve, the actuator, the system, or a flow conduit whose fluid flow is controlled by the valve escapes to the environment.
摘要:
A fire-resistant enclosure for a valve or an electrical apparatus. The enclosure has a body formed of a suitable insulating material which is shaped so that it can be placed around a valve or electrical apparatus. The body has one open side which facilitates emplacement. A service cover is provided which is also formed of a suitable insulating material which can be secured over the open side of the body so that the valve is enclosed.
摘要:
A selector valve system has been invented for selectively operating a motor for selectively actuating a main line valve on a pipeline, gas flowing through the pipeline, the system having, in one aspect, a body, a first poppet valve mounted on a first channel through the body, a second poppet valve mounted in a second channel through the body, a first limit valve for controlling flow of a portion of the gas to the first poppet valve so that upon such gas flowing to the first poppet valve the first poppet valve is actuated to permit gas flow to the motor to open the main line valve, and a second limit valve for controlling flow of a portion of the gas to the second poppet valve so that upon such gas flowing to the second poppet valve the second poppet valve is actuated to permit gas flow to the motor to close the main line valve. In one aspect the poppet valves are O-ring-saving cartridge valves.
摘要:
Methods and apparatuses for cleaning and/or muffling a gas discharge which in one aspect includes a hollow body with a filter element mounted therein through which the discharge gas flows and in which liquids entrained in the gas are filtered out, the body having one or more liquid collection areas from which liquid can be removed from the apparatus for disposal or for re-use. The apparatus also can serve as a noise muffler to reduce the noise level of the gas discharge.
摘要:
A method for moisture-proofing refractory fiber material by applying paraffin emulsified in water to the material, drying it, and then coating it with vinyl mastic paint.