US540808A

US540808A - George w

Info

Publication number: US540808A
Authority: US
Publication date: 1895-06-11
Anticipated expiration: 1912-06-11

Description

(No Manel.)

- G. w. BAIRD. STEAM GENERATOR.

INVENTOR WIT NESSE S rus Nonnx's ezrsns co, Pummuma, wAsnlN'roN. ul c,

UNITED STATESl PATENT Genion.

GEORGE BAIRD, OE THE UNITED STATES NAVY.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 540,808, dated June 11, 1895.

Application filed December 26, 1893. Renewed December 20, 18 94. Serial No, 532,507. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE W. BAIRD, an engineer and officer ofthe United States Navy, residing at Washingtom in the District of Columbia, have made certain new and useful Improvements in Steam Generators or Evaporators for Making Pure Water for Feeding Boilers and other Purposes, of which the following is a specification. l

My invention relates to that class of evaporators in which steam is generated from sea or other impure water by means of steam introducedin coils or tubes within the generator. The steam generator being connected to, a condenser, the steam is condensed and the water of condensation is drawn'off to be applied to any of its many uses.

The object of my invention is to so arrange the coils in multiple or series that they may be readily cleaned or scaled-without removal or where the generator is limited to space the coils may be removed without removing the outer casing.

The invention consists in connecting the tubes or coils either in series or multiple close to the steam inlet and outlet chambers which are located near the periphery of the casing thereby leaving space for examining or cleaning the coils by entering through the manhole in the casing.

Referring to the drawings, Figure l is a vertical section through the generator, showing the steam inlet and outlet chambers on the casing. Eig. 2 is a horizontal section on line a: a: of Fig. l, showing the relative position of the coils with that of the casing. Fig. 3 is a modified form showing the steam inlet and outlet chambers on the bottom of the generator and near the periphery of the casing. Fig. 4 is a detailedsectional View showing separate caps or plugs to the steam-chamber by the removal of which the nuts can be removed from the ends of the coils. Fig. 5 is a detailed sectional view showing a dierent form of coils, which are placed in multiple upon the cap which contains the inlet and outlet chambers; and Figs. 6 and 7, details in section showingthe coils in series, that shown in the latter figure being fastened to the casing.

A is the casing; B, the coils; C, the steam.

inlet chamber and D the outlet chamber;

The sevchambers may be made to communicate with each other by means of pipes E or cast with the casing or base E as at Gr.

H. is a man hole and I a pipe which carries the generated steam to the condenser.

In Fig. l the coils are attached to the casing, and the steam chamber, into which the ends of the coil enter is covered with a bonnet K which is similar in form with that of Figs. 3 and 6, except the chambers are on the base of the generator.

In Figs. 4 and 7 separate caps or plugs L are employed to gain access tothe nuts on the end of the coil.

In Fig. the coils are secured to a removable header M whichis also provided with a bonnet K. The coils shown in this figure are in substantiallythe same position as those of Figs. 1 and 2 as'to this advantage and that' is they can be removed through the manhole or with thebonnet as desired and especially when the location of the generator headers cannot be removed. In the operation ofthe evaporator it is alternately lled and emptied of the water thereby allowing thecoils to eX- pand and contract which loosens the scale adhering to them.

I may also apply coils the tubes of which are fiat in cross section which are more sensitive to expansion by the change of temperature.

Steam from the boiler can be admitted to any of the inlet chambers as at N which Will readily find its way to all of them and to the coils into the outlet chamber, where the water of condensation VVmay be drawn off in the well known manner. The steam thus i-ntroduced will heat'the water, whiclrhas beenpreviously introduced in the well known manner, and generate steam which is carried to the condenser through the pipe I, wherel the water of condensation is pumped into the boiler or used for other purposes.

It is not necessary to give a full detail of the operation of the evaporator as it is old in the arts and my invention consists in an improvement upon the same such as found in patent granted to me August 23, 1887, No.

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

1. In a steam generator or evaporator` the combination ofthe casing, the steam inlet and outlet chambers on the periphery of thel case with the steam coils in multiple or series connecting with the steam inlet and outlet charnbers substantially, as shown for the purpose set forth.

2. In a steam generator or evaporator the combination of the casing, the steam inlet and outlet channels near the periphery of thecase and concentric to each other with the steam coils in multiple or series connecting with the steam inlet and outlet chambers substantially as shown and described.

3. In a steam generator or` evaporator the combination of the casing provided with the steam'inlet and outlet chambers ou its pealiases 1Connecting the inlet and outlet chamber substantially as shownand described.

5. In a steam generator or evaporator the i combination ofthe casing provided with steam inle. chambers, communicating with each other with tubes or coils connecting the inlet and outlet chambers and a manhole above the coils substantially as shown and described. GEORGE W. BAIRD. I'Nitnesses J. M. FOWLER, WM. I-I. DELACY.