US863116A - Condenser plant. - Google Patents

Description

N6. 863,116. I PATENTED AUG.- 13, 1907.

I R. n. TOMLINSON;

v CONDENSER PLANT. APPLIGA'PIUN FILED MAR. 27, 1907.

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23 .230 I v r I WITNESSES:

figwm W v 'TTORNEIZ INVENTOR c :2; run STATES PATENT OFFICE.

llOY -l l. l). TOMLINSON, OF MILWAliKlCll, \l'lSt'ONSIN, ASSIGNOH TO ALLIS-OHALMERS UtlMPl-LEY, OF Ml'lill'AliKl ll-l, -\\'ISC( 'I.\'. A (IORPORAIIOX L NEW JERSEY.

CONDENSER PLAN-T.

Specification of Letters Patent.

Patented Aug. 13, 1907'.

Application filed March 27, 1907. Serial in. 354, 13.

To all whom't't may com-cm:

Be it known that I, Horn. 'louu'wsox, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented a certain new and useful Condenser Plant, oi which the following is a specification.

This invention relates to condenser plants and is adapted for use either with a surin-cc or a jet condenser, the specific organization oi plant (llHKlUSOd by this specification the drawings accompanying the same is, however", specifically designed for use with a let condenser.

Briefly stated, the condenser plant which constitutes the subjecematter of this invention. comprises the combination with a jet condenser of waterand air pumps 5 for relieving the condenser head of the condensing water and the water ofcondensation and for freeing the condenser head of air and other gases while at the same time irceing from air one of the water pumps employed in order that it may not become air bound,

It is a well known fact that air carried into a jet condenser with the condensing water increases in volumewhere it is desirable to use a jet condenser and on account of location or natural conditions it is not possible to have a tail pipe 34 feet high (or whatever the barometric column may be for a specific locality) between the head of the condenser and the surface of the water in the bot well. Under these circumstances a pump or pumps must be employed to discharge the waterfront the condenser against the atmospheric pressure which must be overcome, and in pract ice it is found preferable.

to use two or more pumps arranged in series. on account oi the 'efiiciency of operation resulting from such an arrangement.

This invention specifically combines two centrifugal or positive rotary pumps arranged in series and connected with the condenser, a separate dry air pump beiug provided to free the condenser of air, said dry air pump also being connected with the pump located ncarerthe condenser to free that pump of air, a discharge for the dry air pump being provided at a point preferably between the impellers oi the two-pumps, whereby the back pressure upon the dry air pump is diminished to the pressure which exists between the two impellers, which pressure is less than atmospheric, as the of forcing the-water from a vacuum into the denser head; 5 the condensing water controlling valve;

6 the tail pipe through which the condensing water and the water of condensation is discharged; 7 a centrifugal or rotary pump with which the tail pipe 6 connects; 8 the discharge pipe or conduit from said rotary pump, which inturn becomes the supply pipe or conduit for the second centrifugal or rotary pump 9; and 10 the discharge pipe from said-second rotary pump, which is extended below the surface of the water contained in the hot well '11 The liot well 11 may be provided with the overflow pipe 12, which may lead to waste or to a tank from which the water may be returned again tothe boilers. The condenser plant shown being adapted for use with a variety of plants, the illustration is limited to he condenser plant alone, no other parts referred to being shown.

Theplpe 10 is provided with a check valve 13, and the pipe 3 is provided with a stop valve 14.

The numeral 15 designates an electric motor as a convenient motor for operating pumps 7 and 9, and the drawings illustrate the armature of this motor and theimpellers of the pumps as all carried on a common shaft 16. I i

The numeral 17 designates the steam cylinder of the dry air pump to which steam may be admitted through the pipe 18 and from which the steam is exhausted through the pipe 19, said cylinder being provided with a piston and piston rod which actuate the plunger or piston 0f the air pump 20, the details not being, shown.

The numeral 21 designates the inlet or suction pipe for the dry air pump, which pipe is extended into the condenser head and has its open end located under and adjacent to the umbrella 4 as the air and otherlga-scs collect under this umbrella.

The numeral 22 designatesa pipe which is connected at the point'in pump 7 where air collects and which if not removed would cause said pump to become air bound, and this pipe 22 conncctswith pipe 2], whereby air would be withdrawn either from the condenser head or from the pump 7, or both.

The numeral 23 designates the discharge pipe from the air pump 20, which is provided with check valve 230, and this pipe, aspreviously stated, is preferably arranged so that the disclmrge is into the pipe 8.

The operation of the apparatus is as follows: Steam being supplied to the condenser head through the exhnust'pipc 1, the water which passes into said head through pipeB condenses said steam, and this water, together with the water of condensation, is withdrawn from the condenser head by the pumps 7 and 9, operated by the motor 15, and discharged into the hot well 11. Air and other gases are also withdrawn from the condonser'head 2 and from the pump 7 by the air pump 20, mid discharged into the pipe 8. i i It is apparent thnt by providing the two pumps 7 and 9 rind the means disclosed for preventing the first pump 7 from becoming air bound, said pump will always provide an eificient water seal'for the condenser head 2.

extremely simple, safe end reliableiormof apparatus for discharging the writer fromo. condenser under the conditions stated.

v Instead of the specific form. of two pumps shown by I the drawing; any equivalent structuremay be used,

the term pump as used in this specification and in the claims meaning the forcing or impellingmeans as distinguished from their inclosing casings.

What I claim is,--

1. The combination with a condenser, of a pump. for

discharging water therefrom, a dry air pump for dis charging air from said condenser, said dry air pump'being also in communication with said first mentioned pumpto discharge air from said pump, and another purupndapted to receive the water discharged by said first mentioned pump and the air discharged by said dry air pump un'd'to discharge said water and air to a suitable place.

3. The combination with a'jet condenser provided with a steam inlet and a water outlet, or a centrifugal pump in open communication with sai dcondense r. :1 dry air pump provided 'with ssuction pipe extended into'suid condenser, said dry air pump also being provided with a suction pipe in open communication-with the interior of said centrifugal pump, and another centrifugal pump connected with said first mentioned centrifugal pump by a conduit, said dry air pump'being provided with a discharge pipe adapted to dischurge into said conduit at a point between the two In testimony whcreof, I aflix my signature in the pres

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