US1510156A - Discharge pipe for turbine pumps - Google Patents

Description

Sgpt. 30 1924.

W. G. NOACK DISCHARGE PIPE FOR TURBINE PUMPS Filed March 23. 1923 INVENTOR. Wad/Z291 G. Noa 01c BYQ A TTORNE Y Patented Sept. 30, 1924.

UNITED STATES WALTER G. NOAGK, 0F STOCKTON, CALIFORNIA.

DISCHARGE PIPE FOR TURBINE PUMPS.

Application filed March 23, 1923.

To all whom it may concern.

Be it known that I, l/VALrnn G". NoAoK, a citizen of the United States, residing at Stockton, county of San Joaquin, State of California, have invented certain new and useful Improvements in Discharge Pipes for Turbine Pumps; and I do declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in pumping equipment, especially that used in connection with deep wells, from which the water is raised by a pump of the turbine type driven from the surface, and having consequently a vertical shaft extending from above the surface down through the discharge pipe to th pump. I

The water usually contains a certain amount of sand and other gritty substance in suspension, which acts very deleteriously on the necessary intermediate bearings of the pump drive shaft in the discharge pipes,

requiring that a special and expensive form of hearing be used if it is to stand up under the abrasive action of the grit for any length of time.

The principal obj ect of my invention is to construct the discharge pipe in such a manner that the gritty material in the water is kept away from the bearings, so that the latter may be made of any of the usual and relatively inexpensive materials suitable for the purpose, without the necessity of frequently replacing the same.

The use of oilless bearings for the shaft being made possible, the water is kept from contamination with oil or grease, which would be objectionable in the case of a water supply for ice making, or in pressure water systems for household purposes and human consumption.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the purposes for which it is designed.

These objects I accomplish by means of such structure and relative. arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views.

Serial No. 627,181,

Fig. 1 is a vertical elevation, mainly in section, of a. deep well and pumping equipment therein, showing my improved form of discharge pipe.

Fig. 2 is an enlarged section coupling and shaft bearing unit.

Referring now more particularly to the characters of reference on the drawings, the numeral 1 denotes the well having at the bottom a turbine pump 2 of usual character, the water raising mechanism of which is driven by a vertical shaft 3.

The discharge line from the pump comprises piping 4: in suitable lengths as is customary, the lengths being connected together by sleeve couplings 5 formed in which are centrally disposed bearing sleeves 6 for the shaft 2, the sleeves being connected to the body of the coupling by arms or ribs 7.

The interior of the piping i is spirally grooved or rifled as at 8, the pitch. and depth of the grooves being of course designed to give the maximum efficiency for their purpose.

This purpose is to cause the water thrown upwardly into the discharge piping from the pump to be given a whirling motion as it of a pipe ascends which will cause any grit therein,

being heavier than the water, to be thrown toward the outer edge of the column of water owing to the centrifugal action set up by 'the rotary movement of the water. This causes the water in the center of the column, and adjacent the shaft to be free of its abrasive impurities, so that neither the shaft nor its bearings 6 are subjected to any more rapid wear than that naturally had by reason of the relative movement therehetween.

To reduce the friction or resistance oifered to the upward movement of the water, the arms 7 of the bearings 6 are preferably set at a slant the same as the pitch of the grooves, as clearly shown in Fig. 2.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is:

1,. In a discharge pipe for water pumps, continuous spiral grooves formed therein; the depth of said grooves being sufficient to impart a whirling motion to a column of water being pumped through the pipe but insufficient to retard the flow of the water.

2. A discharge pipe for water pumps, said pipe having formed therein continuous and llO thrown away from the centernof the column of water.

3. In pump discharge piping having 'a centrally located shaft passing therethrough bearings for the shaft interposed a't intervals in the piping, and relatively shallow spiral groovesformed in the piping to cause the fluid foreed through the pipe to have a rotaryum0tion imparted theretoywhereby'- to throw any solid foreign matter in the fluid away from the bearings;

4. A discharge piping structure for pumps comprisinglengths of pipe formed with interiorspira-l grooves, couplings tor the pipe, shaft hearings in the pipe, adjacent the. COU'PllDgS,QZLDCl QI'IHS connecting each bearing to the bod of the adjacent coupling, said arms being set on a slant of substantially the same pitch as that of the grooves.

In testimony whereof I aflix my sip-nature.

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