US1834130A

US1834130A - Fluid control system

Info

Publication number: US1834130A
Application number: US320049A
Authority: US
Inventors: Garnet W Mckee
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-11-17
Filing date: 1928-11-17
Publication date: 1931-12-01
Anticipated expiration: 1948-12-01

Description

Dec. 1, 1931. c. w. MCKEE FLUID CONTROL SYSTEM FladNov. 1'1. 192g D Ni www,

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Patented Dec. 1, 1931 UNITED STATES GARN W. MCKEE, OF ROCKFORI), ILLINOIS FLUID CONTROL SYSTELI Application med November 17, 1928. Serial No. 320,049.

The present invention relates to improvements in means for governing the supply of fluids, and has particular reference to control means for gas burner supply lines.

In many industrial appliances, Ia plurality of gas burners are fed from a single manifold to which gas and air in the desired ratio are supplied through a suitable mixing device, such as a Venturi suction T. The supply of gas is controlled by a zero governor. The supply of air is controlled by means of a cock or Valve, and the volume of the fuel mixture is automatically controlled bythe flow of alr.

The burners in many instances are independently adjustable to provide flames of different intensities. Accurate independent adjustment of the burners often is of vital importance in the manufacturing process in which they Aare used. Changes in the flame intensity from a predetermined intensity at any one of the burners may spoil the Work in the process of manufacture. In the foregoing construction, by reason of the remote 25 control, adjustment of one or more burners influences the pressure in the manifold and hence infiuences all the other burners. This is decidedly objectionable and renders adjustment diiicult. l

The primary object of the present invention therefore resides in the provision of' While theiinvention is susceptible of vari-L ous modifications and alternative constructions, I have shown in the drawing and will 'herein describe in detail the preferred embodiment, but it is to be understood that I do not thereby intend to limit the invention zo to the vspecific form disclosed, but intend to cover all modifications and alternative constructions falling Within the spirit and scope of the invention as expressed in the appended claims. l Referring more specifically to the drawing, the exemplary embodiment of the invention comprises a fiuid supply manifold 10. Connected in parallel to the manifold l0 in spaced relation along its length are a plurality of fluid outlet pipes 11, nine being provided in the present instance. Each pipe 11 is provided With an adjusting means, such as a suitable hand cock 12. VVhilethe invention is not limited to the distribution of any particular fiuid. it is particularly adapted for the distribution of a gaseous fuel mix- 55 i ture, and hence a gas burner 13 of suitable construction is shown connected to each pipe 11. The manifold 10 may be of any suitable construction, and in the present instance is cylindrical in form, and closed at one end.

^ Fuel mixture is supplied to the other end of the manifold 10 from a suitable mixing and proportioning device designated Generally as 14. In the present instance, his device is in the form of a Venturi suction T comprising a casing 15 having inlet openings 16' and 17 andan outlet opening`18. Secured to the opening 18 and connected to the manifold 10 is an outlet expanding cone 19. A tapering nozzle 20 connected to a suitable air 8 supply pipe 21 is secured in the opening 16, and terminates at a point slightly spaced from and in front of the inlet `end of cone 19. The opening 17 is connected to a suitable gas supply pipe 2,2 in which a restricted and adjustable orifice 2 3 is interposed. Airy from the nozzle 20 enters the cone 19 at a relatively high velocity, and creates a sucvalve 25 is to the atmosphere. The 1,00

space 26" at the other side is exposed to; the

.pressure in the pipe 22 `at, the outlet side of the valve 25. An adjustable spring 27 tends to close the valve 25.

Where relatively high gas pressures are used, it is advisable to put a service governor on the line to produce a gas pressure at the inlet of the zero governor of not more than a few inches of Water column.'

Interposed in the pipe 21 is a suitable air .regulator 28 preferably of standard construction.' The regulator 28 comprises a valve 29 in the pipe 21 and connected to a diaphragm in a casing 31. The space 30 remote from the valve 29 at one side of the diaphragm 30 is vented to the atmosphere, and a wei ht fold 10. Hence, the pressure ofthe fuel mixture in the header 10'is not disturbed by the adjustment of any one ormore of the burners 13. After a bui-ner is once adjusted for a desired pressure in the burner head by l adjusting the valve 12, that pressure will remain while the other burners are being adjusted. It is true that the adjusting of the burners to the correct burner head pressure may change the air-gas ratio of the mixture in the pipe 10 but this can afterwards be adjusted once and for all by 'adjusting the orifice 23'.

I claim as my invention 1. A fluid control system comprising, in combination, a manifold, a plurality of burners connected to said manifold, a mixing device for supplying a mixture of air and gas to said manifold, a line for supplying air to said mixing device, a line for supplying gas to said mixing device, said mixing device including means for inducing a flow of gas in proportion to the air supplied, aregulator interposed in said air line, and means connecting said regulator to said manifold so as to render said regulator responsive to the pressure in said manifold.

2. A fiuid control system comprising, in combination, a manifold, a plurality of burners connected to said manifold, means forregiilating the supply of fluid to said burn# ers, a mixing device for supplying a mixture of air and .gas to said manifold', a line for supplying air to said mixing device, a line foi` supplying gas to said mixing device, said responsive to the pressure in said manifold.

3. -A fluid lcontrol system comprising, in combination, an elongated manifold closed at one end, a plurality of discharge pipes connected to said manifold alon its length, means for individuall control ing the dischargeof fluid throng said pipes, a mixing device connected to` the other end of said manifold, means for supplying a fluid to said mixing device, a zero` governor in said last mentioned means, other means for supplying another fluid to said mixin device, the flow of said last mentioned fluid inducing a proportional flow of said first mentioned fluid, a regulator in said other means for controlling the supply of said last mentioned fluid and a pressure line connecting said regulator to said manifold `so as to render said regulator responsive to the pressure in device, a regulator in said second fiuid line,

and a pressure line connecting said regulator to said manifold so as to render said regulator responsive to the pressure in said manifold.

5. A fluid Control system comprising, in combination, a manifold, a plurality of independently adjustable burners connected to said manifold, a mixing device for sup lying a mixture of air and gas to said manifrdld, a line for supplying air to said mixing device, a regulator interposed in said line responsive to the pressure beyond the outlet, a line for supplying gas to said mixing device, and a zero governor in said last mentioned gas line.

In testimony whereof, I have hereunto affixed my signature.

vGARNET W. MCKEE.

mixing device including means for inducing a fiow of gasin proportion to the flow of air thereto, a regulator interposed in said air line, and means connecting said regulator to said manifold so as to render said regulator iio