US1421034A - Manifold - Google Patents

Description

H. F. SMITH. MANIFOLD. APPLICATION FILED OCT. H, 1920.

Patented June 27,1922.

UNITED STATES PATENT OFFICE.

HARRY r. SMITH, or DAYTON, OHIO, ASSIGNOR, 13g MESNE ASSIGNMENTS, To THE GAS RESEARCH COMPANY, or DAYTON, oHIo, A CORPORATION oro'H o.

MANIFOLD,

Specification of Letters Patent. Patented J 11118 27, 1922. I

Application filed October 11, 1920. Serial No. 415,965.

To all whom it may concern: I Be it known that I, HARRY F.,SM1TH, a citizen of the United States of America, re-' siding at Dayton, county of Montgomery, and tate of Ohio, have invented certain new and useful Improvements in Manifolds, of which the following is a full, clear, and exact description.

This invention relates to conveying systems, and more particularly to a divided manifold having means for preventing leakage, at the places of jointure, from one passage of'the manifold 'to another.

One of the principal objects of theinvention is to provide means associated with the ends of the sections of a divided manifold for preventing the leakage of the material conveyed by the manifold from a passage upon one side of a dividing partition to a passage upon the other side.

Another object of the invention is to provide an improved fitting for use in connection with purifying apparatus such as that disclosed in United States Patent 1,099,773 issued to me June 9th, 1914, which fitting has means associated with the dividing partition thereof to prevent the escape of impurity containing gas from its conveying passage into the passage conveying the clean gas.

Other objects and advantages of the invention will be apparent from the description set out below when taken in connection with the accompanying drawing.

In the purification of gas, particularly producer gas, as described in the patent above referred to, the drum containing the separator or extractor pad is normally mounted upon a fitting which comprises a divided manifold, the passage upon one side of the dividing partition connecting the drum upon one side of the extractor pad to a source of impure gas, and the passage on the other side of the dividing partition connecting the drum upon the opposite side of the extractor pad to the place of utilization of the gas. In other words, instead of using one pipe to convey the impure gas to the extractor andanother pipe to convey the clean gas from the extractor, it is the practice to use a single divided manifold, in which the impure gas passes therethrough upon one side of the dividing partition and the clean gas upon the other side of such partition. It has also been the practice to properly machine the flanges, provided upon the opposite ends of these fittings, for permittlng theirattachment to the ends of cooperating fittlngsor pipe sections, so that a substantlally gas-tight joint will be secured when, the fitting is in. assembled position. For ordinary operations the joint thus formed; is sufficiently tight. In many cases, however, as where extreme cleanness of the gas is desired, there should be complete prevention of any leakage of impure gas into the cleaned gas; for itis evident that appreclable leakage of impure gas through the place of jointure ofthe dividing positions of the manifolds into the clean gas side thereof will result in the delivered gas having an excessive quantity of impurity.

In order to prevent this leakage, or transfer, of material from the passage upon one side of the dividing partition into the passage upon the other side of the dividing partition, the apparatus is constructed as shown in the drawing, in which is illustrated, somewhat diagrammatically a fitting for receiving a drum or housing containing a separator or. extractor pad such as described in the above referred to patent, certain parts being broken away to more clearly illustrate the invention.

In the drawing the numeral 10 designates generally a fitting having flan 'es 11 at each end thereof adapted for attachment to correspondlng flanges 12 upon cooperating fittings, or sections of pipe or manifold, 13. This fitting 10 has a dividing partition '15 therein, which extends lengthwise of the fitting, dividing it into two passages 16 and 17. This dividing partition 15, when the fitting is in assembled position, that is, attached to the cooperating members 13,is in alignment with a corresponding dividing partition 18 which divides such cooperating members 13, forming a part of the conveying system, into passages corresponding to the passages 16 and 17 Opening through the upper wall'of the fitting 10 are two ports 20 and 21, the port 20 opening into the passage 16 and the port 21 into the passage 17 Surrounding the ports 20 and 21 is an upstanding flange 22 adapted to receive the base flange 23 of the drum 24. This flange 22 generally carries suitable looking or retaining mechanism which cooperates with the base flange 23 to hold the drum' 24 in assembled position.

pad 26, preferably composed of very fine glass wool. The space within the drum upon one side of the partition 25 is adapted for connection, through one of the ports 20-.21, to one of the passages 16- 17, the space within the drum upon the other side of the partition 25 being likewise adapted for connection through one of the ports 2021, to the other of'the passages within the fitting 10. The drum is rotatable so that by proper positioning the direction of flow through the extractor pad may be reversed.

As shown in the drawing, the space upon one side of the partition, for example the space to the left, is connected through'the port 20 and passage 16 to the generating chamber of the producer. The passage 16 therefore contains impurityladen gas. The space within the drum upon the other side of the partition 25 is connected through the port 21 to the passage 17, the gas within this passage 17 being therefore cleaned gas, more or less free from impurity.

The contacting surfaces upon the corresponding ends of the fitting 10 and the cooperating members 13 are preferably machined so that a tight joint may be secured through metal to metal contact of these contacting faces. In actual practice a differential pressure of about two pounds to the square inch exists upon opposite sides of the extractor pad 26, and, therefore, a corresponding differential pressure exists within the passages 16 and 1-7. Also the pressures within each of the passages 16 and 17 are normally above atmospheric. Under these conditions it is diificult to secure such a metal to metal contact as will entirely prevent the escape of gas from the passage 16 into the passage 17. To prevent the transfer of impure gas from thepassage 16 to the passage 17 a groove'is provided within the contacting faces of the dividing partitions 15 and 18, which groove is in open connection with the atmosphere. Any gas which tends to leak between the contacting faces of the dividing partitions from the passage 16 into the passage 17 will be trapped withinthis groove and thus will escape to the atmosphere.

Inactual practice, in order to make easier the construction of the fittings 10 and c0- operating members 13 and to facilitate assembly thereof, connecting bolts are used upon only two sides of the fitting, the fianges upon the other two sides, at each end, having no connecting bolts. It sometimes happens, because of this method of connecting that the contacting surfaces of the flanges having no bolts are not held in sufiiciently close .contaetto .prevent leakage therethrough. To take care of such leakage as might occur, the grooves 35 are provided in the flanges having no connecting bolts so that if desired, packing material may be tamped into place within these grooves to make the joint satisfactorily tight.

As shown in the drawing the contacting faces of the fitting 10 and of the pipes 13 are each provided with grooves which, when the sections of the manifold are in assembled position, register with each other. If desired the entire groove may be located within either the fitting 10 or the cooperating pipe sections 13, either construction being entirely satisfactory so long as a groove of sufficient size is provided to vent into the atmosphere all of the gas that may be trapped therein.

lVhile the form of apparatus herein shown and described constitutes a preferred form of embodiment of the invention, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

lVhat I claim is as follows:

1. In gas purifying apparatus of the character described, the combination with a drum, having a base member, a dividing partition therein, constructed to receive a pervious diaphragm, and a plurality of ports within the base member thereof, one upon each side of the dividing partition; of a fitting adapted to receive the base member of the drum, and having ports therein, adapted to cooperate with the ports within the base member of the drum, a partition within said fitting, dividing it into two passages, each of the ports within the fitting opening into one of the said passages, the construction being such that when the ports in the base member of the drum register with the ports in the fitting, one end of the drum, upon one side of the dividing partition therein is connected to one of the passages with'the fitting, while the other end of the drum, upon the other side of the partition therein, is connected to the other of the passages withinthe fitting; means carried by the fitting and constructed to receive other means adapted for cooperation with the base member of the drum for holding the drum in position; means at each end of the fitting for joining it to a cooperating fitting or section of manifold, and means for preventing leakage at the place of jointure from one of the passages in the fitting to the other.

2. In gas purifying apparatus of the character described, the combination of a drum, having a supporting base member thereon, a dividing partition within said drum, constructed to receive a pervious diaphragm, and two ports within said base member, one upon each side of said partition; a fitting, for supporting the drum, a surface on said fitting adapted to receive the base member of the drum, the cooperating surfaces of the base member and the fitting being so constructed as to form a tight joint, the surface on the fitting having two ports therein positioned to cooperate with the ports in the base member of the drum, each of the ports in the fitting opening into the interior thereof; a partition'within said fitting dividing it into two passages, each of the said passages being connected, when the apparatus is in operative position, through one of the ports in the fitting, and the cooperating port in the base member, to one end of the drum; a flange upon each end of the fitting, for attachment to a corresponding flange upon a cooperating fitting or manifold; and a groove within the end of the dividing partition, connected to the atmosphere, the construction being such that leakage from one passage of the fitting into the other, or of air into either passage of the fitting, is prevented.

3. A gas cleaning system of the character described comprising, in combination, a drum, having a dividing partition therein, a pervious diaphragm within said partition, a fitting supporting said-drum, a partition within said fitting dividing it into two passages, one of said passages, during operation of the device being connected to the drum upon one side of the partition therein, the

other passages being connected to the drum upon the other side of the partition therein, one of said passages being adapted to convey gas to be cleaned to one side of said drum, whence it passes through the pervious diaphragm into the other side of the drum, and is then conveyed away through the other passage in the dividing manifold; a flange upon the end of said fitting for attachment to a corresponding fitting or manifold, said corresponding fitting or manifold having a dividing partition and flange, adapted to cooperate with the corresponding end of the partition within said first named fitting, and a groove in the end of the dividing partition of the first named fitting at all times open tothe atmosphere, the construction being such that leakage of untreated gas from one side of the fitting into the treated gas in the other side of the fitting is prevented.

4:. Cleaning apparatus of the character described comprising, in combination, a housing having an inlet port and an outlet port therein, means within said housing intermediate said ports for treating the fluid passing therethrough; a fitting for supporting said housing, a partition therein dividing the fitting into two passages, said fitting having two ports therein, each connected to one of said passages and each adapted for connection to one of the ports in the housing; and a groove in the end of the dividing partition of the fitting at all times in open communication with the atmosphere.

In testimony whereof I hereto aflix my signature.

HARRY F. SMITH. itnesses HERMAN G. DUERR,

DOROTHY FISHER.

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