초록 ▼

A test probe insertion-retrieval tool for pressure vessels and flowlines which includes a generally elongated body, a fixture at one end of the body to secure the body to a pressure vessel or a flowline fitting, including an insulated test probe socket mounted on a rod which passes through the end o

A test probe insertion-retrieval tool for pressure vessels and flowlines which includes a generally elongated body, a fixture at one end of the body to secure the body to a pressure vessel or a flowline fitting, including an insulated test probe socket mounted on a rod which passes through the end of the elongated body and guidingly and sealingly through a chamber above the end. There is further provided a piston mounted on the rod in the chamber, allowing a flow of pressurized fluid tapped from the lower chamber through connected tubing to force the piston rod and connected insulated test probe socket into the pressure vessel or flowline. Further, there is provided a system of flow ports for allowing fluid under pressure to flow in relation to the piston so as to allow the piston to return to the up position so that the probe may be removed from the rod for evaluation.

대표청구항 ▼

[ I claim:] [1.] An improved high pressure test coupon insertion and removal assembly for pressure vessels and flowlines, comprising:a. a principal generally elongated body portion, having a fluid chamber therein;b. a lower chamber at one end of said principal body portion to secure said body portio

[ I claim:] [1.] An improved high pressure test coupon insertion and removal assembly for pressure vessels and flowlines, comprising:a. a principal generally elongated body portion, having a fluid chamber therein;b. a lower chamber at one end of said principal body portion to secure said body portion to a pressure vessel or flowline fitting;c. a rod extending through a top portion of the principal body portion, and into the lower chamber, the rod including a piston means sealably moveable within the fluid chamber;d. a test coupon mounted on a lower end of the rod below the piston, and extending through the lower end of the body portion into the lower chamber;e. the test coupon moveable to a down position making contact with fluid within the vessel or flowline, and retractable into the lower chamber for inspection or removal;f. means for introducing fluid under pressure into the fluid chamber, for forcing the piston to move between a first down position where the test coupon is inserted into the vessel or flowline to the retracted position where the coupon is retracted into the lower chamber; andg. chain means on the outer portion of the apparatus, for securing the rod either in an extended or a retracted position during operation of the apparatus.