US1871076A

US1871076A - Method of filling tanks with compressed gas

Info

Publication number: US1871076A
Application number: US292817A
Authority: US
Inventors: Mott Chester
Original assignee: Union Carbide and Carbon Research Laboratories Inc
Current assignee: Union Carbide and Carbon Research Laboratories Inc
Priority date: 1928-07-14
Filing date: 1928-07-14
Publication date: 1932-08-09
Anticipated expiration: 1949-08-09

Description

Aug. 9, 1932. Q -r METHOD OF FILLING TANKS WITH COMPRESSED GAS Filed July 14, 1928 area. With conditions, high Patented Au 9, 1932' um'ran srArEs PATENFEJOFFICE cnn's'raa norm, or mmvnn, conoaano, assicnoa, BY mnsnn *asslemms, 'ro omen cmma .um canon ronx RESEARCH LABORATORIES, INC A. CORPORATION OF NEW xn'rnon or name couranssnn eas Application fled m 14,1928. Serial no. 292,817.

This invention relates to a method of and apparatus for filling tanks-pith a compressed gas from other containers m wh1ch the gaseous substance is held as a liquid. 7

. One of the objects of the invention is to render possible the wider-economic distribution of gaseous oxygen. Under present freight rates on the comten make it impossible ecopressed gas 0 nomically to tion, liquid oxygen in containers-can be shipped to distri ution points -for gas cylinders and the latter can be shipped from there.

Another object of the invention is to make it possible to bring a filled gas cylinder to a suficiently high pressure so that a relatively large uantity of gasecanbe forced into the cylin er. g

- The accompanying dra shows an assemblage of ap aratus where y my objects may be attaine The viewis a side elevation, partly in section.

A s storage means in v cylin r 10, shown on the left, is filled with a compressed gas, which may be oxygen: None of the gas inthis cylinder is in liquid form. 11 is the usual escape valve on cylinders of this type and 12 is a reducing valve .of the ordinary kind. The metal pipe 13 leads into a container of liquid oxygen 14 and terminates at the nozzle of a jet pump the bottom of the container as possi v This injector, shown diagrammatically, is

in the form of an injector 15 below the level of the liquid oxygen and preferably as near ble.

not difierent in principle or construction from the usual injector for steam boilers, except that it is of small enough size to go through the neck of the liquid oxygen c'ontainer.

A second pipe 17 leads from the injector to a receiver in the form of a cylinder 18. which is to be filled. This pipe is of somedistribute the gas over a wide the aid of the "present inven-' the form of a what larger diameter than that of. 13, since it must carry a large volume of gas. No special valves are necessary on either the pipe 17 or the cylinder 18, but the ordinary valve 19 of that cylinder must be of a capacity, equal to or greater than pipe 17. (In cold climates, means for heating'any or all of the'containers may be provided.

'Inoperation, the above apparatus -functions as follows: C linder 10 contains gas at a high pressure w lecylinderlS-may contam gas at somewhat lower pressure or be.

entirely empty. Valves 11, 12, and 19 are opened and the pressure at the reducing valve 12 regulated in accordance with the speed at. whichit. is desired to fill cylinder 18. The

stream of gas flowing through pipe-13 has, at the injector, a combined vapc .zingand entraining action. That is to say, globules of liquid oxygen are sucked into the injector and are partially vaporized init, the pipe 17 andcylinder 18. The result is that the cylinder 18 is eventually filled with a bottom layer of-diquid oxygen with a layerof'gas above it, the gas being at a relatively low pressure.

, Since it is the object of the invention to fill cylinders with gas, some means to vaporize the liquid-oxygen is generally necessary. The

atmospheric temperature and the fullness of the cylinder are the governing factors. If

the atmospheric temperature is high, the cylinder may be allowed to attainequilibrium by itself; In cold climates it is necessary to heat the filled cylinders slightly, preferably by putting themin a warm room.

F. on account of the danger of explosion. The result of the heating is that all of the liquid oxygen isvaporized and the gas p'res- In no case should the heating temperature be over 100 blending or mixing effects are also a part of this invention.

I claim as my invention: 1. A method of filling a receiver with a 5 gas which includes the steps of: entraining 1n a stream of said gas particles of this gas I in liquefied form; introducing the mixture into said receiver; and vaporizing the liquid in said receiver to raise the pressure in said receiver.

2. A method of filling a receiver with oxygen which includes the stepsof: introducing into said receiver a mixture of liquid and gaseous oxygen; and heating said receiver to vaporize the liquid oxygen delivered thereto in said mixture.

In testimony whereof, I have hereunto set my hand at Denver, Colorado, this 5 day of July, 1928. CHESTER MOTT.