US1076158A - Washer for producer-gas generators. - Google Patents

Description

P. G. SCHMIDT & W. W. GORE.

WASHER FOR PRODUCER GAS GENERATORS.

APPLICATION FILED DEC. 10, 1909.

1,076,158, Patented 0Gt.21,1913.

2 SHEETS-SHEET 1.

attouw g o P. G. SCHMIDT & W. W. GORE. WASHER FOR PRODUCER GAS GENERATORS.

APPLIOATION FILED DEC. 10, 1909.

Patented Oct. 21, 1913.

2 SHEETS-SHEET 2.

PETER G. SCHMIDT AND WARREN W. GORE, OFOLYMPIA, WASHINGTON.

WASHER FOR PRODUCER-GAS GENERATORS.

Specification of Letters Patent.

Patented Oct. 21,1913.

Application filed December 10, 1909. Serial No. 532,433.

To all whom it may concern:

Be it known that we, PETER G. SCHMIDT and WARREN W. GORE, citizens of the United States, residing at Olympia, in the county of Thurston, State of Washington, have invented a new and useful Washer for Producer-Gas Generators, of which the following is a specification.

This invention has reference to improvements in washers for producer gas generators and more particularly to the portion of the machine known as the scrubber, and the object of the invention is to produce a. means for the extraction of tar and other heavy matters from the gas and at the same time cool the'gas, and furthermore to provide a means for the recovery of the tar and like combustible matters for use, all in one compact, self-contained apparatus.

' In accordance with the present invention, there is provided a casing located closely adjacent to the producer furnace and connected therewith by a short straight length of pipe opening into the interior of the casing into a chamber divided oft from the main portion of thecasing by a baflie plate extending across the casing at one side of a diameter thereof, the top of the receiving chamber thus formed being closed by the top of the casing, while the bottom of the chamber opens into the. main portion of the casing through a water seal formed by a body of water supported by a horizontal partition Within the casing dividing the interior thereof into an upper and a lower chamber.

The gas from the producer furnace finds its way into the main portion of the upper chamber to be there subjected to the cooling action of water sprays and ultimately to pass through a gas washer or mechanical purifier on its way to the point of utilization or storage. The'lower chamber within the casing is utilized for the purpose of receiving the waste wash water, tar and other heavy matters extracted from the gas, and in one form of the invention this lower chamber is provided with means for separating the tar from the water carrying the same so that the tar may be carried to a point of utilization.

The invention will be best understood from a consideration of the following detailed. description taken co nection with the accompanying drawings forminga part furnace in section and elevation. Fig. 2 is a section on the line AB of Fig. 1. Fig. 3 is a section on the line C-D of Fig. 1. Fig. 4 is a detail view showing a portion of the bottom of the baffle plate or diaphragm within the scrubber casing. Fig. 5 is a view of a modified form of the waste wash water and tar receiving chamber of the scrubber.

Referring to the drawings, there is displayed a portion of a gas producerfurnace 1 which may be of any suitable type and therefore is not shown in detail. Adjacent to the producer furnace, there is located a cylindrical casing 2 connectednear the top with the upper end of the interior of the furnace by a short straight horizontal pipe 3. The interior of the casing 2 is divided into an upper compartment l and a lower compartment 5 by a horizontal partition 6, and the upper compartment 4 is separated from the entrance point of the pipe 3- into the casing by a vertical partition 7 extending from the top 8 of the casing to a point close to but separated from the upper surface of the horizontal partition 6, the lower edge 9 of the partition or diaphragm 7 being prefer: ably of wavy contour as shown in Fig. 4.

Supported in the diaphragm 7 and at a corresponding point in one wall of the casing 2 in line with the longitudinal axis of the pipe 3, is a tube 10, through which extends a rod 11 having one end within the chamber 12 formed by the plate or partition 7 and the adjacent wall of the casing 2, and this end of the rod carries a scraping blade 13. The other end of the rod passes through a gland 14 to the exterior of the casing and is there provided with a manipulating handle 15. This rod may be readily moved in the direction of its length to carry the scraper 13 into the pipe 3 and by a suitable manipulation of the rod, the pipe 3 may be readily cleansed of any deposited matter therein. Extending through the wall of the casing 2 and into the chamber 12 is apipe 16, constituting what is known as a purge pipe, which-is provided with a valve 17 and rises to an appropriate distance where it is opened to the atmosphere.

Extending across the chamber ,5 at an appropriate pointis a vertical partition or plate 18 spaced on one side with an insulating piece 19 of wood or other suitable material. Separated from the partition 18 is another like partition 20 in substantially parallel relation to the partition or plate 18 and like the same connected to the side walls of the casing 2, but the upper edge of the partition 20 is at a lower level than the upper edge of the partition or plate 18. The compartment 5 is thereby divided into a receptacle 21 between the partition 18 and the wall of the casing on the side of the partition remote from the insulating material 19, into another receptacle 22 between the partitions 18 and 20, but of less capacity than the receptacle 21, and finally into another receptacle 23 between the partition 20 and the adjacent wall of the casing 2.

- The horizontal partition 6 is pierced by an appropriate passage from which leads a pipe 2 L extending a distance downward into the receptacle 21 but not to the bottom thereof. The pipe 24 is continued up into the compartment 4 by either an extension thereof or by a separate'pipe 25 lodged frictionally or screwed into the pipe 24;. The pipe 25 is of a length suflicient to insure the proper depth of the water seal 26 resting on the partition 6, and which is of sufficient depth to extend an appropriate distance up along the sides of the partition or plate 7.

The bottom of the casing coincident with the receptacle 21 is pierced by a suitable opening through which there is extended a pipe 27, the upper end of which terminates a short distance below the upper end of the partition or plate 18, and the lower end of which may lead to a sewer or other suitable point of disposition of such contents of the. receptacle 21 as it may be desirable to have escape.

The pipe 27 within the receptacle 21 is surrounded by another pipe or cylinder 28 having upper ends above the upper edge of the partition or plate 18 but separated from the bottom of the horizontal partition 6. The lower end of the pipe 28 is provided with a circular series of passages so that the interior of the pipe at this point is in free communication with the receptacle 21, or the pipe may be supported above the bottom of the casing on appropriate legs. The bottom of the casing 2 is also perforated by a suitable passage coincident with the compartment 22 and through this passage there extends a pipe 29 having its upper end below the upper edge of the partition or plate 20 and its lower end extending to any suitable point of disposition of the contents of the receptacle 22 which it is desirable should escape. The pipe 29 may be considerably smaller than the pipe 27 and like the latter is surrounded by another pipe 30 communicating at its lower end with the interior of the receptacle 22 and at its upper end extending above the top of the partition 20. The pipe 28 is sufliciently large in interior diameter to be spaced from the exterior of the pipe 27 and the pipe 30 is of sufficiently large interior diameter to be spaced from the pipe 29. Leading from the compartment 23 through a suitable passage in the bottom of the casing 2 is a pipe 31, the purpose of which will hereinafter appear.

\Vithin the receptacle 22 there may be lodged a heating coil 32 which however may be replaced by any other suitable heating means for raising the temperature of the contents of the receptacle 22, and consequently the heating coil 32 is to be taken as typical or illustrative of any suitable means. Leading out from the compartment 5 through the walls of the casing 2 is a pipe 33 constituting a vent pipe, and which may be carried to a suitable height and be there opened to the atmosphere. Access to the compartments 4: and 5 is had through suitable man holes 34 and 35 respectively covered by the usual plates. the casing 2 is a gas washer 36 which need not further herein be considered than to state that the washer is designed to treat the gas directly, as received from the compartment 4, to the action of a highly divided liquid, preferably water, intermingled by the action of centrifugal force with the gas thus thoroughly cleansing it from extraneous matters, and the wash water used in the gas washer 36 then passes through a port 37 or by a pipe 37 to the Water seal 26 into which the said pipe dips for an appropriate distance. By mounting the gas washer directly on the top of the casing 2, space is economized and gas pipe connections obviated. From the gas washer, the gas passes by way of a main 38 to the point of utilization or storage and this means includes a suitable valve 39. Branched off from the washer 36 at the point of junction therewith of the main 38 is a purge pipe 40 including a Valve 41.

The gas washer 36 has a rotatable member driven at high speed and this produces a suction through the scrubber. If it be presumed that the apparatus is about to start then the valve 41 will be opened and the valve 39 closed. The suction thus produced is sufficient to cause the necessary draftthrough the furnace 1 and blowers may therefore be omitted. After the furnace is properly started then the valve 41 is closed and the valve 39 is opened, and when the main 38 leads to an explosion engine ofproper size, then the suction of the engine will cause the operation of the gas producer machine.

Lodged on top of The gas generated in the furnace 1 passes through the pipe 3 into the chamber 12 and thence through the water seal 26 into the chamber 4, some of the condensable matters being deposited on the walls of the chamber 12 to find their way by gravity to the water seal, and other condensable matters being precipitated by sprays of water fromspray pipes 42 traversing the chamber 4 in the usual manner.

Practically all condensable matters which may still remain in the gas when it reaches the washer 36 are extracted thereby and then pass into the water seal through the pipe 37 as an emulsified mass of water and tarry material which ultimately,--together with water coming from the spray pipes 42' and tarry materials deposited in the chambers 12 and 4 find their way through the pipe 25 into the pipe 24 and so into the receptacle 21 where the tarry matters soon float to the top of water within the receptacle 21 and form a layer thereon, the water finding escape through the interior of the pipe 28 to the top of the pipe 27 and down the same to the point of disposal. The

tarry matters and such water as may be entrained pass over the top of the plate or diaphragm 18 and find their way into the compartment 22. In this last named compartment the tar again finds its level on top of the water within the compartment, the

said water ultimately escaping through the pipe'29 and the tarry matters finding escape over the upper edge of the diaphragm or plate 20. As the tarry matters flow over the plate or diaphragm 18 and into the compartment 22 the tar is largely mixed with water and more or less emulsified forming a frothy composition. Heat from the coil 32, or from any other suitable' thereof or the entire absence of such material, then the compartment 5 may be free from division plates or partitions as indicated in Fig. 5 and the plpe 24 will simply open at the lower end near the bottom of the casing 2 while one side of the casing will have a passage 43 therethrough a dis tance above the bottom of the casing which passage opens into a side compartment 44 communicating with a waste pipe 45 and provided with a cover 46 for ready access to the compartment 44. Water passing into the compartment 5 forms a water seal for the bottom of the pipe 25 while excess water flows into I the compartment 44 and out,

through the waste pipe 25 carrying with it all foreign matters extracted from the gas and finding their way into the compartment 5 through the pipe 24. i

What is claimed is:

1. In a gas producing apparatus, a scrubber having means for providing a water seal therein, and a centrifugal gas washer mounted on top of the scrubber and directly communicating therewith and having a discharge or waste conduit leading into the scrubber into operative'relation to the water seal.

2. Ina gas producing apparatus, a scrubber, a) gas washer mounted directly on top of thescrubber and directly communicating with the interior of the scrubber, a valved gas main communicating with the outlet side of the gas washer, and a valved purge pipe connected also with the outlet side of the gas washer.

3. In a gas producer apparatus, a gas producer furnace, a scrubber adjacent thereto, a straight pipe connection between the furnace and scrubber, a partition within the scrubber extending downward from thetop thereof opposite the opening communicating with the pipe connecting the scrubber with the furnace, a scraper head located in the 5 space between the partition and the pipe 9 overflowing at the division wall into the next succeeding one, one receptacle communicating with the upper compartment, certain of the receptacles having combined overflow and overflow conduits for heavier fluid to cause the lighter fluids to pass from one receptacle to the other over the division wall and the last one of the series of receptacles in order, having a conduit for the escape of the overflow of lighter fluids from the preceding receptacle.

5. In a gas producer apparatus,a scrubber having superposed compartments with a diaphragm in the upper compartment separating the inlet for the gas from the outlet thereof and provided with a water seal, and a tar separating means in the lower compartment connected with the upper compartment by a conduit water sealed 1n the lower compartment, said lower compartment being provided with overflow receptacles for the separation of the tar from the water carrying the same.

6. In a gas producer apparatus,ascrubber comprising a suitable casing separated into superposed compartments by a horizontal partition and having the upper compartment divided into receiving and discharge portions by .a vertical partition, means for causing a water seal for the lower edge of the vertical partition, a gas washer carried by the top of the scrubber and provided with a waste conduit leading to the water seal portion of the upper compartment, and overflow receptacles in the lower compartment. each having outlet means below the overflow level of the respective receptacles.

T. In a gas producer apparatus, a scrubber having superposed compartments with a diaphragm in the upper compartment separating the inlet for the gas from the outlet therefor and provided with a water seal, and a tar separating means in the lower compartment connected with the upper compartment by a conduit water sealed in the lower compartment, said lower compartment being provided with overflow receptacles for 1,07e,1aa

the separation of the tar from the water carrying the same, one of said receptacles belng provided With heating means to tacilitate the separation of entrained water from the tar.

8. In a gas producer apparatus, a scrubber comprisinga suitable casing having gas inlet and outlet passages, and an interior partition extending downward from the top of the casing in chord relation to the Walls of the casing and adjacent to the gas inlet thereto, and a valved purge pipe con nected to said casing on the gas inlet side of said partition.

In testimony that we claim the foregoing as our own, we have hereto afiixed our signatures in the presence of two Witnesses.

PETER G. SCHMIDT. WARREN IV. GQRE.

Witnesses:

IV. A. KEARNS, E. FFosrER.

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