Abstract 927,592. Storing liquefied gases. CONCH INTERNATIONAL METHANE Ltd. Jan. 29, 1962 [March 21, 1961], No. 3249/62. Class 8(2). [Also in Group XXXIII] A ship carrying liquefied gas in tanks (e.g. tanks having a bottom 42, walls 62, and sections formed by swash plates 36 with valve controlled ports 38) mounted within an insullated space 108 provided by the inner hull 14, bulkhead 20 and thermal insulation 124, has a sump chamber 48 (48<SP>1</SP>), (Fig. 5 shows a sump chamber 48 at the bottom of each section of the tank, or a sump chamber 481 can be fitted at the side), which as shown in Fig. 6 has an inlet 112 in one wall and outlets 120, 114 in another, a tubular member 110 extending from the inlet opening to the insulated space 108 to convey liquid which has leaked into the space to the outlet 114, another tubular member 118 of smaller dimension than the first extending therethrough to communicate with ports 40 or 60 in the tank and communicating via the outlet 120 with the header 52 or passage 66, pumps 54 or 54<SP>1</SP> and riser 58 or 58<SP>1</SP>, whereby the liquid may be supplied to or pumped from the tank through flow control valves. A small pipe 122 within the tubular member 118 extends to spray heads in the tank for spraying liquid to cool the tank before filling through the member 118. Provision is made for admitting inert gas into the sump chamber 48.
IN THE STORAGE AND TRANSPORTION OF A COLD LIQUID IN TANKS OF LARGE CAPACITY MOUNTED WITHIN AN INSULATED SPACE, A SUMP CHAMBER HAVING AN INLET IN ONE WALL AND A FIRST AND SECOND OUTLET IN ANOTHER WALL, AN OUTLET OPENING IN ONE WALL OF THE TANK, A TUBULAR MEMBER EXTENDING FROM THE INLET OPENING IN THE SUMP CHAMBER TO THE INSULATION SPACE ABOUT THE TANK FOR PASSAGE OF LIQUID FROM THE INSULATION SPACE INTO THE SUMP CHAMBER, ANOTHER TUBULAR MEMBER OF SMALLER DIMENSION THAN THE FIRST EXTENDING THERETHROUGH FROM THE TANK OUTLET INTO THE SUMP CHAMBER, MEANS COMMUNICATING THE OTHER TUBULAR MEMBER WITH THE FIRST OUTLET IN THE SUMP CHAMBER WHEREBY LIQUID TO AND FROM THE TANK PASSES THROUGH SAID FIRST OUTLET AND LIQUID FROM THE INSULATION SPACE PASSES INTO SAID CHAMBER TO THE SECOND OUTLET, A PUMPING MEANS, A LIQUID HEADER, MEANS COMMUNICATING SAID FIRST OUTLET IN THE SUMP CHAMBER WITH SAID PUMPING MEANS, MEANS COMMUNI-
Claim 2
Dependent Claim
157 words
IN THE STORAGE AND TRANSPORTION OF A COLD LIQUID IN TANKS OF LARGE CAPACITY MOUNTED WITHIN AN INSULATED SPACE, A SUMP CHAMBER HAVING AN INLET IN ONE WALL AND A FIRST AND SECOND OUTLET IN ANOTHER WALL, AN OUTLET OPENING IN ONE WALL OF THE TANK, A TUBULAR MEMBER EXTENDING FROM THE INLET OPENING IN THE SUMP CHAMBER TO THE INSULATION SPACE ABOUT THE TANK FOR PASSAGE OF LIQUID FROM THE INSULATION SPACE INTO THE SUMP CHAMBER, ANOTHER TUBULAR MEMBER OF SMALLER DIMENSION THAN THE FIRST EXTENDING THERETHROUGH FROM THE TANK OUTLET INTO THE SUMP CHAMBER, MEANS COMMUNICATING THE OTHER TUBULAR MEMBER WITH THE FIRST OUTLET IN THE SUMP CHAMBER WHEREBY LIQUID TO AND FROM THE TANK PASSES THROUGH SAID FIRST OUTLET AND LIQUID FROM THE INSULATION SPACE PASSES INTO SAID CHAMBER TO THE SECOND OUTLET, A PUMPING MEANS, A LIQUID HEADER, MEANS COMMUNICATING SAID FIRST OUTLET IN THE SUMP CHAMBER WITH SAID PUMPING MEANS, MEANS COMMUNI-