Freezing apparatus for liquid-filled pipelines

Details Freezing apparatus for liquid-filled pipelines Freezing apparatus for liquid-filled pipelines

1997-06-17

1998-12-29

Tapolcai, William E.

Refrigeration

With indicator or tester

Condition sensing

62293, F25D 300

Patent

active

058529381

ABSTRACT:
A freezing apparatus for liquid-filled pipelines (3, 5) uses a vaporizable refrigerant conducted in a circuit through a hose (13) with an internal capillary line (14). The apparatus has a contact body (1) with a contact surface (2) for the pipeline (3, 5) or for an adapter (4) and expansion chambers (6, 7) for the evaporation of the refrigerant. To improve the ease of handling and the thermal efficiency by making it possible for the temperature to be measured very close to the apparatus, the hose (13) is attached to the contact body (1) in the direction normal to a surface line of the contact surface (13). The contact body (1), furthermore, has a projection (16) at the side of the contact surface (2), this projection carrying a thermally insulated clamping spindle (17) for attaching the contact body (1) to the pipeline (3, 5). The spindle in turn contains a temperature sensor (20, 20a).

REFERENCES:
patent: 3742723 (1973-07-01), Grise
patent: 4309875 (1982-01-01), Radichio
patent: 4944161 (1990-07-01), Van Der Sanden
patent: 5548965 (1996-08-01), Chen et al.
patent: 5680770 (1997-10-01), Hall et al.

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