US1286988A

US1286988A - Vapor-circulating system.

Info

Publication number: US1286988A
Authority: US
Inventors: William B Fulton
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-01-10
Filing date: 1918-01-10
Publication date: 1918-12-10
Anticipated expiration: 1935-12-10

Description

W. B. FULTON.

VAPOR CIRCULATING SYSTEM.

APPLICATION FILED MN. 10, 1918.

Patented Dec. 10, 1918.

2 SHEETS-SHEET I.

EJ286388o Attorney W. B. FULTON. VAPOR CIRCULATING SYSTEM.

y I APPLICATION FILED JAN. 10. I918- mswsav 2 SHEETS-SHEET 2- Attorney .Patented Dec. 10; 1918;

1 Lil? .i nran'r en ries f 517 ELLIAM I3. IE ULTUN, 0F MIDDLETOWN, OHIO.

VAPQRA'JIRCULATING S'YfiTEM.

To all whom it may concern:

Be it known that l, lVILLiAM FULTON, a citizen of the United States, residing at Middletown, Butler county, Ghio, have invented certain new and useful improvements in. Vapor-Circulating Systems, of which the following is a specification.

Circumstances arise in which it is desirable to bring about the circulation of vapor in a systein'in which one portion of the vapor requires to be dealt with at a given pressure while another portion or other portions of the vapor require tobe dealt with at a, lower pressure or even at a partial vacuum. For instance, assume a group of paper machine driers heated by steam passed into them at a given pressure.

to bring about a given intensity of drying, and assume a second group of the driers, for the performance of a lower intensity of dry ing, this second group of dimers being heated by steam received from the first group at a lower pressure, or possibly at a partial vacuum. It is the purpose of my system to facilitate the movement of the vapors and water of condensation in such ,a general system involving a plurality of pressures, two pressures as in the example just cited, or a greater number of pressures.

My invention will be readily understood from the following description taken in connection with the accompanying drawings in which:

Figure 1 is a front elevation oi an organization exemplifying my invention adapted for use in connection with two groupsof paper machine driers, parts appearing in vertical section in the plane of line a of Figs. 3 and 4:

Fig. 2 a side elevation of'the automatic valve-mechanism, a portion appearing in vertical section in the'plane of line b of Figs. 1 and a:

Fig. 3 a side elevation of the receiver and its near accessories, parts appearing in vertical section in the plane of lines 0, d and e of Fig. 1 and line 6 of Fig. 4: and

Fig. 4 a plan of a portion of the apparatus, a horizontal section appearing in the plane of line 7 of Figs, 1 and 3.

In the drawings:

1, indicates a receiver;

2, a pipe connected with the receiver and adapted to convey steam and water ,of'com Specification of Letters latent. p t t d Deg. 19 91 Application filed January 1%, 1918.

Serial No. 211,259.

' densation thereto from the high pressure element of the system, such, for instance, as

' "---lower-pressure.:elernent 9f the system, such,

for instance, as a low-pressure group .of paper machine driers:

v the high pressure group of paper machine a, a bafile disposed within the receiverto prevent the direct flow of entrained water to the outlet 3:

5, a pump of any suitable character, pref erably of suilicient capacity to handle the water of condensation from the receiver. and from the low-pressure element of the system and-vtojfimaininill a partial vacuum in the low-pressure element: v

6, a pipe connected with the suction side of the pump and adapted to lead from the discharge of the second element of the general system as, for instance, the low-pressure group of paper machine driers.

7, a pipe placing the suction side of the pump in communication with the base of the y receiver 8, an automatic valve disposed in this pipe 7 and adapted, as hereinafter explained, to control flow from the receiver to the pump: I

9, a check-valve in pipe 7, opening toward the pump 7e 10, a lever pivoted to the body of automatic valve 8 and connected with its valvestem:

11, a weight adjustable along the lever and tending to urge the automatic valve to normally closed position:

12, a water-vessel hung upon the lever, in

vertical height corresponding, in a general way, with the level of water ;to be controlled in the receiver: x

13, the normal level of water in the receiver and also, as will be later seen, in the 15, a similar flexible pipe connecting the base of the water vessel with a point in the receiver below i the normal. water level;

\ therein: I

opposition to weight 11, anddisposd atxa 16, a i'vater-gage, on-the receiver: 17 various drain-pipes connected with the system:

18, a pipe connecting the suction s1de 0f the pump with the base of the receiver, independent of pipe. 7: l

19, a check-valve in pipe 6, opening toward the pump:

. I 20, an air-valve or cock discharging from the receiver: and 21, cold-water pipe leading to pipe 7.

.The various pipes of1the system are provided with handvalves where needed or useful. The pumpmaybe a pump in fact or its place may be taken by any suitable Suction device, such as an ejector or a sigihonr pipe. The automatic valve may be 0 any usual construction-of balanced stopvalvcs.

,Amunie that the system is empty; thatthe Valves controllin the drain-pipes. 17 are closed; that automatic valve 8 is closed; that the valve in pipe 18 is closed so that that pipe is out of service; that all other valves are open except the check-valves; that pipe 2 is connected with the outlet of the highpressure element of the system being dealt with; that pipe 3 is connected with the inlet of the. low-pressure element of the system being dealt with; that pipe 6 is connected with the outlet of the low-pressure element of the system being dealt with and that the pump is working.

High-pressure steam, whichis supplied to the high-pressure element of the system,

performs its duty therein and'becomes -reduced in temperature and pressure; the steam at the reduced pressure, together with the water of condensation, goes through pipe 2 to the receiver and fills thereceiver; valve 20 isto be closed afterthe displaced air has become discharged from the receiver; the

7 water of condensation settles in the base of the receiver; steam goes from the receiver through pipe 3 to the low-pressure element of the system and acts therein in performing its heating office at a lower-temperature and. pressure than :in the first element of the wsystem; baflie t prevents entrained water entering the receiver vby pipe 2 from going directly to outlet 3; the steam together with the water of condensation, goes from the low-pressure element of the s stem through pipe 6 toward the pump; co (1 water from pipe 21 condenses such steam as there may g be; the pump discharges this Water of con 8 remaining closed; further accumulation of' water raises the level in the receiver and in the water-vessel and increases the weight of the latter; the preponderance of weight of the water-vessel over the weight 11 causes a slight opening of valve 8; the pump now receives and discharges this excess" Water; the pump Is at this time pulling on the receiver and on the low-pressureelemcnt oi the system; the withdrawal of the excess water' causes a restoration of water levelin the Qreceiver and in the water-vessel, and valve 8 closes; the pump now pulls only on the low-pressure element of the system; and the pump may thus, under the control of the automatic valve, maintain a constant waterlevel in the receiver, without interfering with the action of the pump on the low-preswater level in the receiver becomes controlled with great nicety. I

It has thus far been assumed that the pump was dealing with alsingle receiver, but it is obvious that suction pipe 7 of the pump might be connected with any desired numberof receivers, etc., within the capacity of the pump. If the automatic valve should become disordered in any way, then the hand valves may be so operated as to cut the automatic valve off from the receiver and place the receiver in communication with the pump through the medium of by-palss pipe 18, it being understood, of course, that the valve controlling the by-pasi valve will be set with extreme nicety or else opened only on occasions The valves in the drain-pipes 17 permit of the drainage of the entire appa-i ratus," even the water-vessels 12 draining through the receiver.

.1. In a vapor circulatingsystem, the combination of a receiver, a steam connection to the upper portion thereof adapted to lead steam from the high pressure element of a system to be dealt with, a steam connection from the receiver adapted to convey, steam from the upper portion of the receiver to a low pressure element of the system being tion adapted to convey steam from such low vice with the lower portion of the receiver, a valve in the last-mentioned pipe between the receiver and the pipe leading from the low pressure element of the system, and automatlc means exterior to the receiver for con- .dealt with, a suction device, a pipe connec-- pressure element of'the system to the suc- .tion device, a pipe connecting the suction detrolling said valv by changes of level of 3. A structure as s'giecified in claim 1 in water in the receiver, combined substantially combination with a. water-pipe connected 10 as set forth. with the inlet of the suction device, substan- 2. A structure as specified in claim 1 in tially as set forth combination with a valved bypass pipe con- WILLIAM B. FULTON. nected with the receiver and'with the suc- Witnesses 1 I tion (levice between it and said automatic ADENA MYERS,

va ve, substantially as setforth. M. S.'BELDEN.