초록 ▼

A device for inserting or removing a plug and probe (13) which is subjected to high pressure in a process pipe or a tank. A nipple (12) is attached to the pipe (11) or the tank. The nipple can be secured by a cover (14). After removing the cover a ball valve (15) can be attached to the nipple. A hyd

A device for inserting or removing a plug and probe (13) which is subjected to high pressure in a process pipe or a tank. A nipple (12) is attached to the pipe (11) or the tank. The nipple can be secured by a cover (14). After removing the cover a ball valve (15) can be attached to the nipple. A hydraulic cylinder (16) is then externally connected to the ball valve. A piston in the cylinder can be connected to the probe through the ball valve. This piston can be used to pull the plug out or push it in through the ball valve. Once the plug has passed through the ball valve, the plug can be removed from the cylinder and replaced, if necessary.

대표청구항 ▼

A retriever tool for the insertion and removal of a sensing probe from the wall of a pressurized vessel, said probe being mounted in a threaded nipple attached to the wall of the pressurized vessel, the tool comprising: (a) a nipple means which is arranged to be permanently attached to a correspondi

A retriever tool for the insertion and removal of a sensing probe from the wall of a pressurized vessel, said probe being mounted in a threaded nipple attached to the wall of the pressurized vessel, the tool comprising: (a) a nipple means which is arranged to be permanently attached to a corresponding aperture in a pressure vessel or pipe, said nipple means having a smooth tapered inner bore and an outer end when attached to said vessel, the inside diameter of said bore being greater at the outer end of said nipple means; (b) a plug means sized to slidably fit into the inner bore of said nipple means said plug means having a sealing means for sealing with said nipple means to prevent leakage from said pressure vessel, said plug means being adapted to removably receive and mount a sensing probe therein, whereby said probe will be in communication with the fluid within said vessel, said nipple means and plug means including a releasable means for retaining the plug and probe within said nipple means; (c) valve means having means for sealingly attaching the valve means to the nipple means, said valve means having a straight through internal passageway permitting passage of the plug means and probe when the valve is in the open position and sealing said nipple means when in the closed position; and (d) a retriever means having a hollow tubular cylinder which is large enough to receive said plug means, said cylinder having a closed end and an opposite open end, said open end being connected to said valve means, the closed end of said cylinder being connected to a means for controllably pressurizing said cylinder with fluid whereby when the valve means and retriever means are mounted on said nipple means, the retriever cylinder means can be pressurized to the same pressure as the vessel and the plug means and probe can be removed when the retainer means is released and the cylinder pressure is slowly reduced.