US1184095A - Registering device for gas-analyzers. - Google Patents

Description

I. W,. & C. W. HAYS. REGISTERING DEVICE FOR GAS ANALYZERS. APPLICATIONQFILED SEPT. 14. 1914. RENEWED SEPT. 21, 1915.

1,1 84,095. Patented May 23,1916.

IIII

' I INVIE T RS WIT ESSES: 1

THE COLUMBIA PLANOORAPH c0., WASHINGTON. D. c.

JOSEPH HAYS AND CHARLES W, HAYS, OF CHICAGO, ILLINOIS.

nnersrnnme iinvron FOBGAS-ANALYZERS.

Specification of Letters Patent.

Patented May 23, 1916.

Original application filed July 17, 1913, Serial No. 779,547. Divided and. this application filed September 14, 1914, Serial No. 861,736. Renewed September 27, 1915. Serial No. 52,962.

I To all whom it may concern gas is in the absorption vessel, thereby materially reducing the time required to make a determination.

We attain the objects of our invention by the means illustrated in the acompanying' drawing, in which for the'sake of clearness,

we have shown only those parts of our automatic gas analyzer that relate to'the present invention.

'This application is a division of our copending application, Serial No. 77 9,5417, filed July 17,1913. 7

In the drawing, B is the burette or gas measuring chamber and A the absorption chamber. These are connected by the capillary tube, OT. A is connected near the bottom by the tube A with the chamber X and Xis connected at the top by the tube X with the chamber Y. Y is connected near the bottom by the tube Y with the displacement tube, DT on which there is a scale, ISZ' A, A and the lower part of X are filled with a chemical'solution, PS.' The lower part of Y, the tube Y and the lower part of DT are filled with Water, W while floating upon the chemical solution in X and the water in Y is a light oil, O, which completely fills X and-the unoccupied portions of X and Y. A

dry chemical maybe used in A if desired and in such case the use of the oilO as a piston operating between the chemical and the water would be unnecessary as the air trapped in X and Y would act as such iston.

IT and OT are gas inlet and outlet tubes leading respectively to and from B. 1 I I A P is a gas pump, operated by a stream. of Water delivered through the pipe, WP.

The Water is delivered from P into the standpipe, StP. The standpipe is soldered into the water chamber WVO and extends down a short distance into same.

D- is a discharge siphon which empties the stand-pipe and the water chamber when the water has accumulated in the stand-pipe to the overflow point, OF. The tubes IT and IT, connect with the pipes, IT and OT, as shown and are soldered into the top of WO.

BP is a by-pass valve connecting the tubes, IT and OT. A

The measurement of the gas sample at at mospheric pressure is accomplished by means of the tube MT and the gas bag, GB as hereinafter described. The apparatus is charged with the caustic potash solution or other liquid chemical used through the tube, POT, which is closed by the plug, POT The oil, O is introduced through the tube, O which is closed by the plug O .The percentage of the gas being determined is indicated upon the scale IS by the displacement of water upward into DT. The chamber, WC and the by-pass valve,

BP are filled with water, W and W The apparatus operates as follows: The

gas pump, or aspirator, P, which is operated by a small stream of water delivered through WP, creates a partial vacuum in the pipe, OT; This "is communicated to B and the pipe, IT, the latter being connected with the source of gas supply. As a result of the lowered pressure, gas flows through-IT, B and OT to P, where it mingles with the water. The water W is discharged into 86F and accumulates in The Water in a few moments reaches and seals the lower end of StP.'

' water accumulating in StP. As a result of this pressure, water VV isdisplaced from the chamber, WO through the tubes, IT and IT, into the tubes, IT, OT and MT and the burette, B. When the water reaches andv seals the lower ends of the tubes IT and OT, the flow of gas is shut off, and aquantity of gas is trapped in B and MT. The gas flow is shortcircuited through BP, following the stoppage of flow through B. As the water rises toward B, some of the trapped gas is displaced into MT and the distensible the. capillary tube, CT, into A, displacing the liquid chemical, ,PS This, its turn, displaces the 011 piston, O, which in its turn displaces the water, VV causing the latter to rise in the tube, DTZ A may be packed with a fibrous material, SWV, preferably steel wool, to increase surface exposure and expedite absorption, It is plain to be seen that the height to which thewater. rises along the scale, IS, is inversely proportional to the volume of gas absorbed in A. If it is desired to produce a record of the analysis, a low pressure recording gage may beconnectedaby tube with thetube, DT. By this arrangement We are able to confine the chemical in the chambers, .A and X, where it will not be exposed to anything except the gas introduced into A. It will be necessaryjin some cases to employ a chemical 'that'will be affected by the oxygenof the air and if such chemical weredisplaced into anopen tube and used'as an indicating-fluid it would rapidly deteriorate. The arrangement enables usto employ a liquid,'-such as Water, having a'constant specific gravity, as" an indicating fluid. r f f 1 lVe claim. I V

1. A gas analyzer consisting of gas measuring and absorber vessels; a gas'absorbing said first mentioned liquid.

' said tube and a liquid piston between said:

chemical in said absorber vessel; a tube connected with said absorber vessel a liquid in saidztube and a third liquid intermediate between said gas absorbing chemical and 2. A gas analyzer consisting'of gas'meas uring and absorber vessels; a gas absorbing chemical in said absorber vessel; a tube con nected with said absorber vessel; a liquid .in

chemical and said last'mentioned liquid.

3. A gas analyzer consisting of gas meas- Gobi'e'i of fl'xii patent may be obtained for fivecents each, by addrentng the Commissioner ot l aten t r; H

'uring and absorber vessels; at gas absorbing chemical 1n said absorber vessel; a tube connected with said absorber vessel; a liquid in said tube; a third liquid intermediate between said gas absorbing chemical and said Y first mentioned liquid, said third liquid bemg Of less gravity than either said gas absorbing, chemical or said first mentioned chambers; a'- gas absorbing chemical in one of said chambers and a fluid in one of said chambers,- intermediate between said liquid f f f 5. A registering device for agas analyzer;

and said chemicalf consisting of; an absorption chamberconnected near the bottom with a second chamher, said second chamber being connected at the top with a third chamber and said third chamber being connected at the bottom With-- a tube; a gas absorbing chemical in said ab-,

- sorption chamber and the lower part of said second chamber; a liquid in said tube andthe lower part of. said third chamber and a and-third chambers-Q; V

, 6. A gas analyzer consisting of connected 75, i third liquid of less gravity than-either of I said others andsolub-le. in neither, floating upon both of said first mentioned liquids and fillingthe upper portions of said second.

gas measuring, gas absorbing and absorptionregistering vessels-; a gas absorbingchemical in the gas absorbing vessel;,a liquid inthe registering vessel;- a separating movable'i' medium-between said Qchemicaland said liquid and means for forcing gas from the measuring vessel into-the absorbing vessel thereby displacing the liquid in saidreg sfl 1? 1,90 In witness whereof, weha've hereunto set f teringi vessel.

our handsand-sealsthis 17th day of'AU-gust,

JOSEPH W. HAYS, V[L. S.-]'

CHARLES IV. HAYS... [ms] H Witnesses: 1

' HrmY Gr. HAYS,"

FLORENCE NORMAN.

' Wash n ton. 11.0.!

Images