US1947099A - Liquid gas vaporizer - Google Patents

Description

Feb. 13;.1934.

M. E. PAINTER LIQUID GAS VAPORIZER F iled Jui 6, 1931 v INVENTOR.

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Patented Feb. 13, 1934 UNITED smrss ?ATENT I l,9d'i,4l99

LIQUID GAS VAPORIER Maurice E. dter, Dayton, 91110 Application .l'uly d, 1931. Serial No. 548.8%!

by moons of which liquefied hydrocarbon gasesv are readily reconverted to gaseous state.

A further object is to construct an apparatus for reconverting liquefied hydrocarbon gases in which the pressure at which the liquid gas is introduced and at which the reconverted gas is withdrawn can be accurately controlled.

A further object is to construct an apparatus for reconverting liquefied hydrocarbon gases which has a large exposed surface eree. whereby the accumulation of frost thereon, due to temperature reduction during the reconverting process, is practically eliminated. Consequently, the apparatus can be used continuously over long periods of time, and the use of artificial heat to assist such reconversion is unnecessary except in cases where the temperature around the recon-= verting unit is below that required-for gesiiics tion.

in the drawing:- F' i is a side elevation of device attached to s with parts broken away and in section. 2 is e fregmental view with perts in section oi the upper end of the spray pipe.

Fig. spray pipe.

4 is e. plan view of one of the deflectors "3 made use oi.

In carrying out my invention, e represents c. drum in which the liquefied gas is stored.- c is e. valve secured to the upper end of the for the release at the contents. The valve 6 is provided with a pipe '2 which extends into the drum 5 end terminates near the bottom of the drum. The valve 6 is provided with the usual valve stem t for the ettschment of a. wrench for opening and closing the valve. A conduit 9 is ettechecl to the valve by means of e. shackle 10. The opposite end oi the conduit 9 is sttached to a pressure regulating velve ll. This valve is se cured to s boss 12 which is formed integral with the top 133.

The hose 12 is provided with a port it in which is screw threaded a sleeve 15. The sleeve is provided at its upper end with a slot it to receive u screw driver-blade so that the same can he insorted and removed from the boss 12. The port 3 is 9. similar view of the lower end or? the i4 is preferably formed concentric with the hol low member 17.

Secured at one end in the sleeve 15 is e spec-v pipe 18. This spray pipe extends downwardly into the hollow member 17 and has its lower closed with a plug 19. The spray pipe is provided with e plurality of longitudinally spaced openings 20. These openings may he diametrically op" posite each other or may he arranged in err; other suitable er.

Surrounding the spray pipe 18 ere deflectors L 21. These deflectors are preferably located just below the openings 20 end. are inclined upward slightly so as to deflect the spray and break it up into a mist. The deflectors 21 are preferably secured to the spray pipe 18 by slipping them on the pipe and then bending them with 9. pair of pliers, the bending being illustrated in Fig. 3. This causes the deflectors to tightly grip the pipe 18.

A bottom 22 closes the bottom end of the hollow member 17. This bottom 22 is provided s passageway 28 which counicetes with the interior of a. hollow member 24 also carried by the bottom 22. The top 13 closes the upper end of the hollow member 24 and is provided with a boss 25 through which a. port 26 is formed. The boss 25 carries a. pressure regulating valve 27 to which is etteched a pipe 28, this pipe leading to either the heating or lighting device Where the recon verted gas is to be used. I

Among the gases which may he reconverted by my method and apparatus are e murture of propane and butane, the mixture being prefer chly thirty per cent oi. propane and seventy per cent of butane. These two gases are obtained in liquefied form at oil wells or refineries, and, upon being mixed and brought into contact with the atmosphere or a. surface having a tempercture as low as 40 F., gasify. The mixture of gases is placed in the drum 5 under a pressure of from seventy to one hundred pounds, and, after the conduit 9 has been connected to the pressure regulating valve, the valve 6 is opened and the pressure regulating valve ll regulated so that the liquefied gsses will enter the spray pipe 18 at a. pressure of about four pounds. As soon as the valve 6 is opened the pressure in the drum is lowered and a portion of the liquefied gases in the drum commences to turn to its gaseous state, and in so doing exerts pressure on the liquid and forces the'liquid in the a r .u. upwardly through the pipe '7, conduit 9, through the velve 1i, and into the spray pipe 18.

e liquid issues from the openings 20 in the form of a fine spray which, upon striking the upturned portions of the deflectors 21, is converted into a mist, and this mist coming in contact with the surface of the hollow member 17 exchanges heat therewith and is reconverted into a gas suitable for lighting and heating purposes.

The gas passes from the hollow member 17 through the passage 23 and into the hollow member 24, from which it passes through the port 26, pressure regulating valve 27 where it is reduced to a relatively low pressure of only a few ounces, into the pipe 28, and then either to the heating or lighting unit.

My purpose of mounting the spray pipe 18 in a sleeve which is readily removable from the port it is that in the event large quantities of gas are desired this spray pipe may be removed and replaced by another spray pipe having more openings therein and also more deflectors. The deflectors are of such diameter that they will pass readily through the port 14 so that the change of spray pipes can be made by simply removing the pressure regulating valve 11. It is understood, of, course, that the hollow members 1'1 and 2 2, which constitute the expander, are secured to the top 13 and bottom 22 in such a manner that leakage of gas will not occur. This may be done either by welding, soldering, or other well known methods.

While I have mentioned propane and butane specifically as the gases to be reconverted from a liquid to a gaseous state, I do not desire to limit myself thereto as there are other gases which can be reconverted from a. liquid to a gaseous state in the same manner.

I may also increase the surface area of the hollow members 17 and 24 by corrugating the same and in this way increase the heat excging capacity of the expander without materially in intense creasing the size of the expander. This form of construction is desirable where large quantities of gas are required, or where sudden increased demands for gas are made.

What I claimand desire to secure by Letters Patent is:

1. An apparatus for converting liquefied hydrocarbon gases comprising a pair of hollow members, a base for said members, a passageway formed in said base and communicating at its ends with the interior oi? said hollow members, a top for said hollow members, an inlet port formed in said top and communicating with the interior or one of said members, a spray pipe removably carried by said top, said spray pipe being in communication with said inlet port, an outlet port formed in said top and communicatmg with the interior of the remaining hollow member, and pressure regulating means carried by said top for regulating the pressure of liquid entering into and gases passing from said hollow members.

2. an apparatus for converting liquefied hydrocarbon gases comprising a pair of hollow members, means for closing opposite ends of the members and for spacing said members to expose their circumferential area to atmospheric temperatures comprising a base having a passageway for providing communication between said members and a top having an inlet port in communication with one member and an outlet port communicating with the other member, a spray pipe mounted in the inlet port and extended into the respective hollow member, and pressure regulating means for regulating the pressure or liquid entering the inlet port and the pressure of gas passing iromthe outlet port.

' MAURICE E. PAINTER.

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