US1294151A - Governing-valve. - Google Patents

Description

F. L. PAGE. GOVERNING VALVE. APPLICATION FILED MAR. 20,1916.

Patented Feb. 11, 1919.

3 SHEETS-SHEEI I.

F. L. PAGE.

GOVERNING VALVE- I APPLICATION HLED MAR ZO |9l6\ 1,294,151 Patented Feb. 11, 1919.

\ 3 SHEETSSHEET 2.

YWITNESSES: I/IIl/E/VTOR Few/w L. 7

F. L. PAGE. GOVERNING V ALVE.

APPLICATION FILED MAR. 20.1916.

Patented Feb. 11, 1919.

3 SHEETSSHEEI 3.

I To all whom it may concern FRANK L. PAGE, OF INDIANAPOLIS, INDIANA.-

GOVERNING-VALVE.

Be it known that I, FRANK L. PAGE, a citizen of the United States, and aresident of Indianapolis, county of Marion, and State of Indiana, have invented a certain new'and useful Governing-Valve; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being hadto the accompanying drawings, in which like letters refer to like parts.

The object of this invention is to provide a valve which may be used by interchanging the parts thereof for five different purposes so that the same valve may be used in place of fiyve different types of valve.

Q The valve construction herein shown, by

simply interchanging the parts may be used as an excess pressure governor valve or a constant pressure governor valve or a pressure reducing valve or as a relief or pop safety valve or as a condenser governor valve, as desired. Another feature of the invention is the valve seat which may be reversed should one side wear out, or be easily replaced if both sides are worn. Other than the above features of this invention, the construction of the valve is ex controlled valve in connection with one or more compression chambers and pistons, and means for conductmg the pressure to said chambers in such a way as to regulate the valve for the purpose desired.

The full nature of the invention will be understood from the accompanying drawing and the following description and claims:

In the drawings, Figure 1 is a central vertical cross section through the valve mechanism showing it as an excess pressure governor valve. Fig. 2 1s thesame as Fig.

1, showing it as a constant pressure governor valve. Fig. 3 is a diagramof a steam and water pump showing the valve mechanism thereon as used in Figs. 1: and 2. Fig. 4. is a vertical central cross section of the pres sure reducing valve. -Fig. 5 is a vertical central cross section of the relief valve. Fig. 6 is a vertical central cross section of the Specification bf Letters Patent. Patented Feb, 111, 19119 Application filed March 20, 1916. Serial No. 85,387.

' governor valve in connection witha water has a valve seat 14' secured therein so that the steam entering the inlet 11 will have to pass through'thevalve seat 14 in order to pass nto theoutlet 12. Secured on the upper side of the housing there is a spring hous ng 15 and on the lower'side of thehousing 10 there is secured acap 16 having ins an inlet port 17. Within thehousing 10 there are bushings 18 in which there is a pair ofpistons 19 and 20. Integral with thepiston 19 thereisavalve 21 adapted to seat in thevalve seat 14. A'hollow tube 22 1s secured to thepistons 19 and 20, passmg through thevalve seat 14 and keeping said pistons at all times equidistant from each other. In said tube there are ports 23 which allow the steam entering the steam chamber to pass through said tube into thesprlng housmg 15. At the upper portion of said spring housing there is an adjustablespring retaining disk 21. Between thepiston 20 and theretaining disk 24 there is acompression spring 25 adapted to exert a downward pressure on said piston.

Against the upper side of said disk there is an adjustingscrew 26 having alock nut 27 thereon adapted to pass through the upper end of thehousing 15 so as to hold thedisk 24 at a given position against thespring 25. On the lower end of thepiston 19 there is aplug 28 adapted to prevent the steam entering through the tube 22 to pass into thechamber 29.

The valve shown in Fig. l is adapted to be used as an excess pressure. governor valve, as shown in the diagram of Fig. 3. There is a feed water pump 30 which sucks in the waterthrou h a pipe 31 and forces it out through apipe 32 to which is connected apipe 33 which enters the valve at the inlet port 17. The steam which operates the pump passes through the steam line, entering the pump.

The operation of themechanism'is as follows:

When it is'desired to maintain pressure in the discharge line of the pump at a cer-' tain number ofpounds in excess of the steam pressure, the .valve is laced in' the steam line, as shown. The ho low tube 22 permits the steam to enter thechamber 34 above thepiston 20 and exert a pressure downwardly on said piston. Therefore, there would be a downward pressure adapted to open the valve exerted by both the steam pressure and-thespring 25, while on the other hand, thewater entering chamber 29 through the port 17 will exert an upward pressure against thepiston 19 which will have a tendency to close the valve. Therefore, it will be readily seen that as the two pistons are balanced with no tension on the spring the valve would maintain a pressure in the outer ordischarge line 32 equal to the steam pressure, but if there is a tension upon thespring 25 the pressure in thepipe line 32 will always be equal to the steam pressure lus the pressure exerted by the spring. Therei hre, when the water pressure becomes greater than .the steam pressure plus the spring pressure, the valve will be closed and the steam shut off until the water pressure is reduced. Therefore, the steam pressure regulates this and at the same time permits a greater water pressure, dependmg on the pressure atwhich the spring is set. In this way, the discharge pressure of any pump may be regulated by putting more or less tension on the spring while the steam pressure entering the inlet 11 may .remain at a less pressure.

Flg. 2 shows the valve construction as a constant pressure governor valve, the only I change that is made being that the tube 22 is closed at both the top and the bottom byplugs 28 and 40. It is used in the same way as the valve shown in Figs. 1' and 3, but inthis type of valve thesteam cannot pass into thechamber 34 and, therefore, the water pressure in thechamber 29 must be greater than-the pressure of the spring in order to close the valve and shut off the steam. This Valve is used when it is desired to maintain a certain fixed pressure in thedischarge line 32 from any kind of pump. Therefore, if it is desired to maintain a certain pressure in thedischarge line 32, it is simply necessary to exert a tension'on the sprin which will give especially adapted for controlling pumpg operating boiler tube cleaners because thed1scharge line 32 is alternately opened and closed and this valve keeps the pressure-in 11116 32 constant. c

spring pressure.

The pressure reducing valve shown in Fig.

valve will pass through the ports 23 and tube 22 into thechamber 29 and exert a downward pressure against thecylinder 19.

' 17. .The steam or other fluid entering the i which will have a tendency to close the valve while the pressure exerted by thespring 25 lll have a tendency to open the valve. Therefore, the pressure of the steam entering the steam chamber must overcome the pressure of the sprin in order to pass on through the valve. T e steam pressure leaving the valve will always be equal to the Therefore, any desired pressure may be obtained by adjusting the spring to that pressure, forif more thanthe desired pressure should pass through the valve seat, the pressure against theplston 19 would overcome the pressure on the spring and close the valve.

This device is used when it is desired to reduce a constant or fluctuating pressure to a lower constant pressure. Fig. 5 shows the device used'as a relief valve. The construction of this valve is boiler or the like and theoutlet 12 is open.

or too great in the chamber29, itwill over- When the inlet pressure becomes excessive come thespring 25. If theinlet pressure becomes greater than the pressure of the spring, the valve will be opened and will remain open until the. inlet pressure falls below the pressure exerted by'the spring.-

Fig. 6 shows the valve used as a condenser governor valve. The construction of thi's'valve .is'thesame as shown in Fig. 5

excepting that both ends 'of the tube arepipe line 45.. This type of'valve especially adapted to be used for governing con; densers in ice plants when it is desired to control theammonia pressure thereof. Fig. 7 shows adiagramthereof. The steam en ters. the pump 30 through the inlet 11 passplugged and thechamber 29 is opened to a ing through the valve andoutlet 12. The

wateris forced through thepipe 32 into a tank.46 in which thereare ammonia coils 47, thepipe line 45 being connected to said by the, ammoniato be applied. against the fcoils so as to permit the pressure exerted placed separately and independently by the spring will close the valve as long -nism in the same manner.

pressure, but it will open the valve and permlt more water to pass into the condenser when the ammonia pressure rises above the given pressure, which w1ll reduce the am-' monia pressure. This does away with the necessity of keeping Water constantly flowing over the ammonia, piping or coils or into the condensers 3 in order to keep the ammonia pressure down. The valve may be placed on thewater line 32 if there is no pump used and the same result will be obtained. I

Fig. 8 shows a modified form of the valve. In this form instead of the steam pressure passing through a hollow tube into the chambers at each end of the pistons, it passes throughthepipe 48,valves 49 and .pipes 50 into the chambers which operates the mecha- Instead of inserting a plug at one or the other, or both ends of the tube, thevalves 49 are operated to obtain the same results.

'lltwill, therefore, be readily seen that this valve mechanism may be used for a number of difierent purposes and produce a number of different results by simply adding or reversing the parts thereof and it is so constructed that each partmay be reof every other part.

The invention claimed is:

1. A valve construction having an inlet and outlet, a valve seat between said inlet and outlet, cylinders on each side of said valve seat, pistons in said cylinders, passageways through said pistons, a hollow tube adapted to pass through said valve seat for rig1dly connecting said pistons, having ports therein whereby pressure may be conducted to the opposite ends thereof, means on one of said pistons for closing said valve, and means for opening or closmg sald passageways whereby the pressure exerted on v said pistons will operatesaid valve.

2. A valve construction having an inlet and outlet, a valve seat between said inlet and outlet, cylinders on each side of said valve seat, pistons in said cylinders, passageways through said pistons, a hollow tube adapted to pass through said valve seat for rigidly connecting said pistons, having ports therein whereby pressure may be conducted to the opposite ends thereof, means on one of said pistons for closing said valve, means for opening or closing said-passageways, and an inlet in one of said chambers whereby an external pressure exerted on said pistons will operate said valve.

3. A valve construction having an inlet and outlet, a valve chamberbetween said' inlet and outlet, a partition in said cham-,

her, a valve seat removably secured in said partition, compression chambers on each side of valve chamber, a connecting rod extend ing through said valvechamber, pistons re- 'movably secured to said connecting rod on each side of said valve seat and a valve on one of said pistons.

4. A valve construction having an inlet and outlet, a valve chamber between said inlet and outlet, a reversible valve seat in said chamber, compression chambers on each side of said valve chamber, interchangeable pistons in said compression chambers, a valve on one of said pistons for engaging said valve seat, and interchangeable cylinderheads adapted to be removably secured to said compression chambers.

5. .A valve construction having an inlet and outlet, a valve chamber between said inlet and outlet, afreversible valve seat in said chamber, compression chambers on each side of said valve chamber, interchangeable tons.

Inwitness whereof, I have hereunto affixed my signature.

- FRANK L. PAGE.

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