US1116042A - Condenser. - Google Patents

Description

R. N. EHRHART. CONDENSER.

APPLICATION FILED DEG. 81, 1912.

1 1 1 6,042. Patented Nov. 3, 1914.

2 SHEETSSHEET 1.

WITNESSES: INVENTOR.

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R. N. EHRHART.

CONDENSER.

APPLIOATION FILED DEC. 31, 1912.

Patented Nov. 3, 1914.

2 SHEETS-SHEET 2.

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HIS ATTORNEY IN FACT.

UNITE STATES PATENT oFFIoE.

RAYMOND N. EHRHAR'I', OF EDGEWOOT), PENNSYLVANIA, ASSIGNOR TO THE WESTING- HOUSE MACHINE GOMPANY, A CORPORATION OF PENNSYLVANIA.

CONDENSER.

Specification of Letters Patent.

Application filed December 31, 1912.

To c'zZZ whom it may concern:

Be it known that I, RAYMOND N. EHRHART,

a citizen of the United States, and a resident of Edgewood, in the county of Allegheny and Stateof Pennsylvania, havemade a new and useful Invention in Condensers, of

. denser to some rigid base, While the turbine is secured to a rigid foundation, the connection between the condenser and turbine being an expansion joint. In actual practice, while the condenser is'in operation, there is a lifting force on the condenser due to the difference in pressure within the condenser and that without the condenser; that is to say, the atmospheric pressure has a tendency to raise the condenser shell and thereby put compression on the expansion joint. As an example, the lifting force, when under vacuum, tending to raise the condenser would be the area of the exhaust times approximately 14 pounds, so that if the lifting force' of the atmosphere is 75,000 pounds and the weight of the condenser is 50,000 pounds, there will be a resultant lifting force of 25,000 pounds tending to tear the condenser loose from the foundation or correspondingly deflect the bed plate of the turbine whensecured thereto. If the condenser shell is suspended from the bed plate of the turbine, its lifting force will have a tendency to put the turbine bed plate under compression and thereby relieve the bed plate from a portion of the atmospheric pressure which itwould otherwise have to sustain. By suspending the condenser from the turbine bed plate not only will the upward pressure have a tendency to relieve the stresses upon the bed plate, but the condenser head maybe placed closer to the turbine so that the loss in vacuum during the passing of the steam from the turbine to the condenser is reduced to a minimum. By suspending the condenser from a superposed support, as for example the turbine bed Serial No. 739,497.

plate, the condenser shell may expand and contract without rupturing the support to which it is attached.

In the drawings: Figure 1 is an elevational view of a turbine and condenser arranged in accordance with my invention;

Patented Nov. 3, 1914.

and Fig. 2 is an enlarged fragmentary sectional view through a portion of the bed plate, the upper end'of the condenser being shown in elevation.

Referring now to the drawings by numerals of reference: 10 designates a turbine, 11 a condenser, 12 the bed plate for the turbine, and 13 an expansion joint connecting the turbine to the condenser. The condenser is shown as being suspended from the bed plate by bolts 14 passing through headed bushings 15 in the projections 16 on the condenser. There is a slight clearance between each bush and the projections 16 so as to allow for expansion in a lateral direction, While expansion in a longitudinal direction is taken care of by providing the bushings 15 slightly .longer than the thickness of the flange of the projections 16. Inasmuch as the condenser is suspended above the ground it is obvious that the heated condenser shell may expand, and in cooling contract withoutpulling away from any rigid part. It will be apparent too that when in use the diiference in pressure will relieve the strain upon the bed plate of the turbine to which the condenser is-secured, and when not in use the Weight of the condenser casting or shell will be sustained by the bed plate 12.

The pump motor 17 is shown as being fast to the ground or support 18 and 1s -connected to the pump 19 by a shaft20 having enough flexibility to compensate for the exv pansion and contraction of the condenser.

Having thus described my invention, what I claim is:

1. Thecombination of a turbine, a con denser, an expansion joint between the condenser and the turbine, and means for suspending the condenser.

2. The combination of a turbine, a condenser, an expansion joint between the turbine and condenser, a condenser support, and means for loosely suspending the condenser from th support. 7

3. The combination of a turbine, asupport therefor. a condenser, an expansion joint between the condenser and the turbine,

and a support common to the turbine and the I condenser from which the condenser is suspended.

4:, The combination of a support, a turbine on the support, a condenser suspended from the support and in communication with the turbine. 5. In combination with an engine, a' support for said engine, a steam condenser in communication with the exhaust of said engine, and means for suspending said' condenser below said engine in such manner that th end is free to move vertically with relation to said support.

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