Claims
- 1. An apparatus for quenching a steel pipe comprising:
- a receptacle adapted to receive the pipe;
- an exterior quenching means in communication with the receptacle, the exterior quenching means being adapted for separately directing a cooling medium in a substantially circumferential flow pattern at variable flow rates around separate exterior segments of the pipe while allowing rapid turnover of cooling medium in the receptacle;
- an interior quenching means for passing a cooling medium through the interior of the pipe, the interior quenching means comprising:
- a cooling medium conduit adapted to introduce a cooling medium into the pipe; and
- a gas injection conduit adapted to blow a gas into the cooling medium as it enters the pipe from the cooling medium conduit to encourage sufficient turbulence in the cooling medium as it passes through the pipe to facilitate heat transfer from the pipe to the cooling medium.
- 2. The apparatus according to claim 1 wherein a cylindrical plug with a plurality of apertures along its length is mated with the outlet of the gas injection conduit.
- 3. The apparatus according to claim 1 wherein the gas injection conduit is telescopically mated with the cooling medium conduit.
- 4. The apparatus according to claim 1 wherein the cooling medium conduit is adapted to seal the inlet of the pipe.
- 5. The apparatus of claim 1 further comprising a clamp engageable with the pipe to prevent the substantial movement of the pipe as it undergoes quenching.
- 6. The apparatus of claim 5 wherein the clamp comprises a single clamping member adapted to engage one end of the pipe.
- 7. The apparatus of claim 1 further comprising an upper deflector plate mounted on the receptacle and adapted to facilitate the circumferential flow of the cooling medium about the upper exterior surface of the pipe.
- 8. An apparatus for quenching the interior and exterior of a steel pipe comprising:
- an exterior quenching means for contacting the exterior surface of the pipe with a circumferential flow of cooling medium;
- an interior quenching means comprising a cooling medium conduit located along the axis of the pipe and having a tapered outlet adapted to direct cooling medium into the interior of the pipe;
- a gas conduit telescopically mated into the cooling medium conduit add having a gas conduit outlet near the tapered outlet of the cooling medium conduit, the gas conduit outlet being adpated to inject a gas from the gas conduit into the cooling medium; and
- a series of helical vanes mounted in the interior of the cooling medium conduit and adapted to impart a helical flow pattern to the cooling medium leaving the tapered outlet.
- 9. The apparatus of claim 8 wherein the vanes are mounted at an angle of about 35 degrees with the horizontal.
Parent Case Info
This is a continuation of application, Ser. No. 346,755, filed Feb. 8, 1982 now abandoned.
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Continuations (1)
|
Number |
Date |
Country |
Parent |
346755 |
Feb 1982 |
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