US653265A

US653265A - Steam heating apparatus.

Info

Publication number: US653265A
Authority: US
Inventors: William C Serrell
Original assignee: Warren Webster & Co
Current assignee: Warren Webster & Co
Priority date: 1900-03-09
Filing date: 1900-03-09
Publication date: 1900-07-10
Anticipated expiration: 1917-07-10

Description

Patented .luly I0, |900n W. C. SEHRELL. STEAM HEATING APPARATUS.

\ (Appliation filedA man3, 1900.) (HT) Nudel.)

Nrnn STATES i PATENT Ormea.

WILLIAM C. SERRELL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE WARREN WEBSTER da COMPANY, OF NEW JERSEY.

STEANI H EATING APPARATUS.

srncrFrcA'rioN forming part of Lettersratenn No. 653,265, dated .my 1o, 1900.

Application filed March 9, 1900. Serial No. 8,005. (No model.)

To @ZZ whom, it may concern:

Be it known that I, WILLIAM C. SERRELL, of the city and county of Philadelphia, State of Pennsylvania, have invented an Improvement in Steam Heating Apparatus, of which the following is a specification.

My invention relates to steam heating apparatus; and it consists of certain improvements which are fully set forth in the following speciiication and are shown in the accompanying drawings. f In many steam-heating systems, especially where there are material Variations in the amount of condensation produced in any part of the apparatus, particularly in paper and cloth drying machines, difticulty is experienced in draining such portions of the system of the excess of water of condensation which is produced. If the normal thoroughfare is made sufficiently large to rapidly discharge the excessive condensation, it will be so large that under normal conditions large volumes of steam will escape and be wasted.

It is one of the objects ofA my invention to enable the normal accumulations of air and water of condensation to be properly discharged without waste of steam and to automatically increase the thoroughfare for the discharge of material excesses in the volume of water produced.

My invention may be applied either to a pressure systemor to one in which a partial vacuum or lower pressure is maintained in the returns.

v In carrying out my invention I employ a trap connected with the return and with the drip from the part to be drained, incombination with a valve-piece having a small valve passage-way'opening into the return for the discharge of water and air under normal conditions and controlled by'a pressuremotor under the control of the pressure in the system, which enables the valve-piece to be opened automaticallyv to a greater extent upon any excessive accumulation of water of condensation in the trap, the normal pressure which acts in the motor to maintain the valvepiece upon its seat being unbalanced by the hydrostatic head pf the excess of condensation. By means of a regulating-piece, which may be a thermostatic expanding piece, if desired, the size of the thoroughfare to the return-outlet afforded by the small valve passage-way in the motor-controlled valve-piece may be regulated to suit the normal rate of discharge. A

In the drawings, Figure l is a vertical sectional view of a valve or trap embodying my invention, and Figs. 2 and 3 are diagrammatic views illustrating the connections ot the trap or valve.

A is the trap, connected with the drip F from the part of the system to be drained and with the return G.

I is the valve-piece, which controls the return-outlet b and is provided with a small passage-way ,opening into the return for the discharge of water of condensation and air at normal rates.

D is the pressure-motor, which controls the valve-piece I and is in turn controlled by the pressure in the system through the pipe H, connected therewith.

In the particular construction shown the trap A consists of an outer casing having an internal chamber'which is divided into two compartments B O by the internal exible or movable diaphragm or partition D ,which constitutes the pressure-motor.

In practice the body of the trap A is preferably formed of two flanged parts E E', bolted together, with the edge of the diaphragm D clamped between their flanges..

The compartment B is provided with an inlet a, which communicates with a drip or 8 5 bleeder F, and with an outlet b, which communicates with the Ireturn-pipe G and is formed with a seat ol.

The compartment C is provided with'an inlet c, which communicates witha branch I-I 9o from any part of the steam-supply.

The valve-piece I is carried by the diaphragm D and adapted tot upon the seat d of the discharge-outlet o. The valve-piece I is provided with a passage-way i, which, as shown, consists of a transverse passage-way extending through the piece I and opening through the top at the center.

K is an adjustable controlling piece or plug arranged immediately above the valve paszoo vnected with the pipe F at a lower level than the drip-point f, from which the Water of condensation is to be discharged; but when this is not possible from the construction of the building or location of the apparatus it may be connected by a n M, asshown in Fig. 2,l

for the purpose of giving sufficient fall in the bleeder F. The pressure in the chamber C through the pipe H is substantially the same as the normal pressure in the chamber B lthrough the pipe F, and theA valve-piece I is held lightly upon the seat d by the diaphragm D. The regulating-plug K is adj usted to afford sufficient opening through the passageway i for the desired thoroughfare to the outlet b for the escape of the water of condensation under normal conditions. Should there occur, however, for any reason an excessive condensation in the part of the system drained by the drip F, the water Will fill the chamber B and dripF and the diaphragm D will be depressed vunder the extra pressure due to the hydrostatic head afforded by the pipe F, thus moving the valve-piece I away from the plug K and seat d and affordinga thoroughfare of greatly-increased area for the discharge of the accumulation of Water. When this excess has passed off and normal pressure is restored, the valve-piece I will again close in its seat d and the normal thoroughfare will be resumed.

The return Gr may be connected With an exhausting apparatus to create a lower pressure or partial vacuum in the return and a constant suction upon the outlet to draw o'the water ofcondensation and the air more rapidly. With such a'systemthe trap or valve device is of special benefit, because it enables a minimum thoroughfare to be employed for withdrawing the air and water of condensation Without material Waste of steam, while enabling the thoroughfare to be enlarged automatically whenever `an excess of condensation accumulates.

The regulating-plug K may consist `of a lthermostatic expanding piece of any suitable material, either metal or composition, Aand when such a thermostatic piece is used there will be practically no Waste of steam Whatever,evensthroughthe small normal thoroughfare provided by the adjustment `of the plug relatively to the valve-piece I, as the thermostatic expanding piece will elongate when subjected to steam and close automatically upon the piece I.

Since the pressure normally maintained in the chambers B and C is the same as the pressure throughout the system generally, any variation in pressure throughout the system will not in any way affect the operation of the trap, which remains equally operative under all of the `varyin g conditions under which the general system is operating.

The details of construction which have been shown may be varied without departing from the invention. u

What I claimas new, and desire to secure by Letters Patent, is as'follows:

l. Avalve or trap for a steam heating apparatus, consisting of an outer casing having an inlet and an outlet and a passage-Way between said inlet and outlet, a valve-piece to control the passage-way throughsaidcasing, a pressure-motor to control said valve-piece, and an adjustable regulating-piece to control the size of the passage-way afforded by said valve-piece.

2. A valve or trap'for a steam he'atingfapparatus, 'consisting ofran outer casing Vhaving an inlet and an outlet and a passage-way between said inlet and outlet, a valve-piece to control the passage-way through said casing having a normally-small open passage-way, a pressure-motor to ycontrol said valve-piece, and an adjustable regulating-piece to control the size of the passage-way afforded by said valve-piece.

3. A valve or trap for steam heating lapparatus, consistingof an outer casing, 'an internal flexible diaphragm "dividing 'said Vcasing internally into'two compartments, one ofsaid compartments having an inletv for Water of condensation and a discharge-outlet, and the other compartmentia steam-inlet, a Vvalvepiec'e having a small valve passage-wayc'arried by said diaphragm and located Vat said discharge-outlet, and a regulating-piece "locate'din said discharge-outlet and adjustable with reference to said' valve-piece tocontrol the size of the thoroughfareaffordedby said valve passage-Way.

4:. A valveor trap forstea'm heating 'apparatus, consisting of an outer casing, 'an' internal flexible diaphragm dividing'saidcasi'ng internally into two'compartmen'ts, oneof'said compartments having an inlet for Water of condensation anda discharge-outlet, 'andy the other compartment having a' steam-inlet,fa valve-piece having a valve'passage-wa'y carried by said diaphragm and located latsaid discharge-outlet, and aV thermostatic expanding piece'located in' said discharge-outlet adjacent to the passage-way in vsaid valve-piece.

5. Avalve or trapfor steam heating. apparatus, Aconsisting of an outer casing, an internal flexiblediaphragm dividing said casing intern'allyintotwo compartments, one of said compartments having an inlet vfor waterof condensation and a discharge-outletterminating in a seat d, and the other compartment having. a pressure-inlet, a valve-piece lI Vcarried by said diaphragm,adapted tobear upon the seat d of said discharge-outlet and provided lwith a valvev passage-Way z', anda regulating-plug K 'adjustable tor-and from Lsaid valve-piece I to regulate the thoroughfare afforded by said valve passage-way 't'.

IOO

IIO

6. A valve or trap for steam heating apparatus, consisting of an outer casing, an internal flexible' diaphragm dividing said casing internally into two compartments, one of said compartments having an inlet for Water of condensation and a discharge-outlet terminating in a seat d, and the other compartment having a pressure-inlet, a valve-piece I carried by said diaphragm, adapted to bear upon the seat d of said discharge-outlet and provided with a valve passage-Way t', and a thermostatic regulating-plug K of expanding material adjustable to and from said valve-piece I to regulate the thoroughfare afforded by said valve passage-Way z'.

7. In a steam heating apparatus, the combination with a drip or bleeder, of a trap into which said bleeder discharges, a return leading from said trap, a valve-piece to control the outlet Within the trap to said return providedwith a valve passage-Way open into said return, a regulating plug adjustable to or from said valve-piece to regulate the normal thoroughfare afforded by said valve passage- Way, and a pressure-motor controlled by the pressure in the system for controlling said valve-piece.

8. In a steam heating apparatus, the combination With a drip or bleeder, of a trap into which said bleeder discharges, a return leading from said trap, a valve-piece to control the outlet Within the trap to said return provided With a valve passage-Way open into said return, a thermostatic regulating-plug composed of expansible material, adjustable to or from said valve-piece to regulate the normal thoroughfare afforded by said valve passage yWay, and a pressure-motor controlled by the pressure in the system for controlling said valve-piece.

9. In a steam heating apparatus, the combination With a drip or bleeder, of a trap into which said bleeder discharges provided with a thoroughfare, a return leading from said trap, a valve-piece to control the thoroughfare Within the trap to said return provided with a small valve passage-Way normally open to said return ,and a pressureMmotor controlled by the pressure in the system to control said valve-piece and the size of the thoroughfare to the return.

10. In a steam heating apparatus, the cornbination of a trap having a permanently-open but variable valve passage-Way for the discharge of Water of condensation, a movable valve-piece to control the area of said passageway controlled by the Water of condensation in said trap and a pressure-motor connected with the system and acting on said valvepiece to control its movements.

In testimony of which invention Ihave hereunto set my hand.

\ WILLIAM C. SERRELL.

Witnesses:

R. M. KELLY, WM. W. MORGAN.