US1493388A

US1493388A - Apparatus for analyzing gas mixtures

Info

Publication number: US1493388A
Application number: US466123A
Authority: US
Inventors: Rodhe Olof
Original assignee: SVENSKA MONO AB
Current assignee: SVENSKA MONO AB
Priority date: 1919-05-28
Filing date: 1921-05-02
Publication date: 1924-05-06
Anticipated expiration: 1941-05-06
Also published as: DK28359C; FR532843A; GB143918A

Description

May s, 1924. 1,493,388

vo. RQDHE AfPARATUs Fon ANALYZING GAS MIxTUREs Filed May 2. 1921 Il Il 'Il Il Patented May 6, 1924.

OLOF RODHE, OF STOCKHOLM, SWEDEN,

ASSIGNOB. T0 SVENSKA; AKTIEBOLAG-ET MONO, OF STOCKHOLM, SWEDEN, A CORPORATION. i

ArPARATUs non. ANALYZING Gas MrX'rUiaEs',

Application filed May 2,

To all whom t may concefm Be it known that I, OLor` RoDHE, subject of the King of Sweden, residing at Odengata-n 54 A, Stockholm, Sweden, have invented certain new and useful Improvements in Apparatus for Analyzing Gas Mixtures, of which the following is a specification.

In analyzing gas-mixtures, particularly in gas-analyzing apparatus, the drawback is met with that the metal-conduits leading to the apparatus may be clogged by dirt caused by the metal being chemically acted on by the condensable constituents.

To prevent this, a material, such as concentrated sulphuric acid is used which absorbs the condensable constituents.

Then, however, another diiticulty arises, viz. that there will be an increase in volume of this sulphur-ic acid according as the condensable vconstituents are' being absorbed. l'

Such an increase in volume must be avoided, since the same clearance space has to be pres- `ent in the piping system in al1 analyses, as otherwise the time passing between the taking ot the test-gas from the gas-source and the introduction thereof into the gas-analyzing apparatus varies, which in turn has a detrimental effect on the result of the analysis.

According to the present invention-such an increase in the volume is avoided by providing an overflow pipe through which the absorbing material for example concentrated sulphuric acid, automatically escapes, the said overflow pipe having one end in open communication with the interior of the receptacle containing the absorbing material and the lower end dipping into a liquid-seal which is provided with an outlet.

A constructional form of an apparatus for carrying out the present invention is shown by way of example in the accompanying drawing which represents a front elevation and partial section of such apparatus.

Primarily, this apparatus is distinguished in that the receptacle holding the materia-l for the absorption of the condensable constituents is provided, in addition to inlet and outlet-pipings for the gas-mixture, with an outlet for automatically leading oliA that quantity of the liquid which corresponds to the increase in volume. The outlet is provided wit-h a liquid seal. e

In the drawing, ct denotes the casing of the apparatus, the same being provided with a door a', b designates the receptacle for the for i921. "semi No. 466,123;

material which absorbs the condensable constituents, c is a gas-supply pipe and d an outlet-pipe for the gas flowing Jfrom the receptacle.

e designates a cover in which is arranged a socket f for a supply-pipe and a socket g an outlet-pipe. h denotes 'a vfilter through which the gas passes between f and c.

z' is an overflow pipe leading from the receptacle ZJ, the upper mouth of this pipe being located at the level of the liquid. ,This pipe z' enters the liquid-seal Z which contains' a sealing liquid having a specific gravity higher than that of the absorbing liquid and which is provided with an outlet m through which the liquid is allowed to flow into the lower receptacle' n, this receptacle being emptied when required.

The mode of operation will be evident from the above description. As the condensable constituents come into the receptaole b, they are absorbed by the sulphuric acid and as the latter increases in volume, because of such absorption, it overflows into the pipe i and accumulates therein until its hydrostatic head is sufficient to force the surplusage thru the liquid in the seal Z, and escape by the outlet m. into the receptacle n. Changes in the pressurev of the gas being analyzed will not alect the level of the absorbent in the receptacle 5,'it only being necessary to meet any such change by a proper depth of liquid in the liquid seal whereby a suitable hydraulic column will be established in pipe z'. In the receptacle b there can obviously be only one constant clearance-space and a constant pressure, since on an increase in volume of the liquid in the receptacle the excess quantity of the liquid will flow out through pipe z'.

What I claim as new and desire to secure by Letters Patent of the United States is 1. A gas-analyzing apparatus in ywhich the gas is freed from condensable constituents by means of a suitable absorbing material, a receptacle for containing the absorbv ent material, a liquid seal providedwith an outlet, and an overflow pipe, one end of which is in open communication with the interior of said receptacle and the other end of which. dips into the said liquid seal.

2. A gas-analyzing apparatus in which the gas is freed from condensable constituents by means of a suitable absorbent material, a receptacle for containing the absorbent material, a liquid seal provided with an outlet located below the Said receptacle, and an overflow pipe, one end of which is in open communication with the interior of said receptacle and' the other end of which dips into the said liquid seal.

3.7A gasp-analyzing apparatus in which the gas is freed from eoudensableY constitu- 10 ents by means of a suitable absorbing material, a receptacle for containing the absorbent material, a liquid Seal for the gas provided With an outlet and containing aliquid heavier than the absorbing material, and an overflow pipe, one end of which is in open communication with the interior of said reoeptaele and the; other end of which dips into the said liquid seal.

OLOF RODI-IE.