Патент USA US2137854код для вставки
Nov. 22, 1938. E‘ P. ORDWAY 2,137,854 APPARATUS FOR HOMOGENIZING LIQUIDS Filed Sept. 4, 1937 INVENTOR. far! .7.’ 0/676047 W ATTORNEYS Patented Nov. 22, 1938 2,137,854 UNITED STATES PATENT OFFICE ‘ 2,137,854 , APPARATUS FOR HOMOGENIZING LIQUIDS 1 ‘Earl P. Ordway, Battle Creek, Mich., assignor to Union Steam Pump Company, Battle Creek, Mich. Application September 4, 1937, Serial No. 164,090 4 Claims. This invention relates toimprovements in ap paratus for homogenizing liquids such as milk and has for its objects: First, to provide such a device in which the 5 liquid is subjected to two stages of homogeniza tion so that the larger globules of the material may be broken up in the ?rst stage and the ag— glomerations of the small globules thus produced may be separated and broken up to reduce the 10 viscosity of the liquid being treated. Second, to provide such a device in which clog ging and air and pressure variations due thereto (Cl. 99-265) tral portion 1 of the valve casing. A screw 20 with a handle 2| and a bearing point 22 is screw threaded at 23 in the cap l8. Bearing member 24 provided with a suitable seat 25 to receive the point 22 of the screw 20 is provided and a com pression spring 26 lies between the bearing mem ber 24 and the main valve body IT. A sleeve 21 is ?tted within the cylindrical cham ber l3 and is provided with a valve seat 28 at the upper end thereof. It will be noted that this v10 valve seat extends around and is spaced from the main valve I1. At the lower end of the sleeve 27 are eliminated. is a suitable shoulder 29 engaging a suitable re Third, to provide such a device which is simple and inexpensive in construction. Fourth, to provide such a device which is sim ple and effective in operation and which may be cessed portion 30 of the central portion 1 of the valve casing, whereby the sleeve 21 and the valve 15 casing ‘I are clamped ?rmly together. A sleeve 3! forms the second valve body. This sleeve is ?tted around and is slidable on the main valve body I1 and is provided with a flange 32 which engages the valve seat 28. The outside of the 20 sleeve 3| slides on the walls of the chamber i5. Suitable packings 33 and 34 are provided. A bore 35 extends substantially the full length of the valve body l1. This bore extends through the stem 36 of the valve body I1 and communi 25 cates directly with the inlet to the valve casing at adjusted easily and simply, the valves being in ter-dependent and properly proportioned to pro duce the desired result. Fifth, to provide such a device in which the valves may be changed simply and easily for diiierent materials to be treated. Further objects and advantages pertaining to details and economies of construction and opera tion will appear from the description to follow. The device is pointed out in the claims.’ A pre ferred embodiment of my invention is illustrated in the accompanying drawing, in which: Fig. 1 is a detail sectional view taken through the improved valve. Fig. 2 is a perspective view of the main valve body employed in my invention. The valve consists of a casing I provided with suitable ears 2 through which the bolts 3 extend to clamp it in place on a suitable base 4 having the passage 5 for the liquid which is to be intro duced into the valve. This liquid is supplied from the usual pump which is not shown since it forms no portion of the invention. The casing consists of an adapter element 6 and a central member ‘I. Suitable packing rings 8 and 9 form a tight joint. Inlet passages 10 are provided in the adapter 6 and a main valve seat H is provided at the end of the inlet pas sage l2 which joins the passages l0. Within the central portion 1 of the valve is provided a cylin drical chamber l3 having an outlet l4 therefrom and above the cylindrical chamber I3 is a smaller cylindrical chamber I5 terminating in a still smaller bore 16. The main valve I1 is cylindrical in form and extends through the bore l 6. It also extends through the chambers 13 and I5 and is spaced from the walls of these chambers. A cap I8 is provided, screw threaded as at 19 to the cen a point in advance of the valve seat II. A cross bore 31 communicates with the chamber 15 above the sleeve 3| so that ?uid from the inlet opening I2 passes through the valve body to the other side 30 of the sleeve 3|. The operation of the valve is as follows: Fluid is admitted from the passage 5 through the in— let and the pressure exerted against the valve body I 1 opens that valve slightly. High pressures 35 are employed and the pressure of the liquid be tween the valve seat II and the valve body I‘! breaks up the globules which occur in milk or the like. The liquid then passes through the chamber l3 inside of the sleeve 21 and past the 40 valve seat 28 and the flange 32. The passage of the liquid through this valve breaks up the ag glomerations formed through the ?rst homogeniz ing treatment. The pressure on the Valve is sup plied by the ?uid passing through the bore 35 45 and urging the sleeve 31 downwardly as viewed in Fig. 1. By properly proportioning the exposed surfaces, it is possible to obtain the desired pres sure on the second valve. 50 The pressure exerted through the spring 36 controls the pressure at which the valve body I1 is lifted and this pressure determines the effec tive pressure required to open the valve or sleeve 3 I. It will be apparent that the single controlling 55 2 2,137,854 device controls the operation of both valves and that they are inter-dependent. If it is desired to handle several di?‘erent mixes, it is possible to employ different sized sleeves l3 and 31 so that di?erent ratios of pressure between the main valve and the second valve may be obtained. However, in operation the ratio of said spring, a second valve seat in said cylin~ drical portion of said valve casing and surround ing and spaced from said main valve body, a second valve body in the form of a sleeve seating on said second valve seat and slidably ?tting on 5 said main valve body and on the walls of said cylindrical portion of the valve casing, sealing remains ?xed for a given pressure and adjust means between said second valve body and said ment. This greatly simpli?es the construction of the valve necessitating the use of a single spring only and necessitating a single adjust main valve and the walls of said cylindrical por tion of the valve casing, and a passage through 10 said main valve body extending from the inlet ment. The operator of the apparatus knows that the proper ratio between the pressures is obtained at all times and there is no necessity for more than a single adjustment in order to obtain the proper treatment of the material. Having thus described my invention, What I claim as new and desire to secure by Letters Patent is: 1. In an apparatus of the class described, the combination of a ‘casing having a bore therein communicating with a second and smaller bore which in turn communicates with a third and smaller bore, an adapter closing the end of the ?rst bore and having an inlet passage terminating and past and opening on the other side of said second valve body, whereby fluid pressure exerted at the inlet of said valve casing tends to urge said second valve body toward said second valve 15 seat. 3. In an apparatus of the class described, the combination of a valve casing having a portion for receiving a pair of valve bodies and having an inlet and a discharge, a main valve seat at 20 ?tting slidably in said third bore and extending said inlet, and a main valve body disposed in said portion of the valve casing and spaced from the walls thereof, a spring urging said main valve body on its seat, and adjusting means for controlling the force of said spring, a second 25 valve seat in said portion of said valve casing and surrounding and spaced from said main valve body, a second valve body in the form of through the other two bores, a cap on said cas a sleeve seating on said second valve seat and ing, a spring in said cap tending to urge said main valve body toward its seat, and an ad justing means for controlling the tension of said slidably ?tting on said main valve body and on 30 the walls of said portion of the valve casing, sealing means between said second valve body and said main valve and the walls of said portion of the valve casing, and a passage through said main valve body extending from the inlet and 35 past and opening on the other side of said sec ond valve body, whereby ?uid pressure exerted at the inlet of said valve casing tends to urge said second valve body toward said second valve seat. 4. In an apparatus of the class described, the in a main valve seat, a main valve body of cylin drical form seating on said main valve seat and spring, a sleeve ?tted within said larger bore and surrounding and spaced from said valve body to provide a passage for ?uid past said valve body and having a valve seat at its end opposite said adapter, said adapter holding said sleeve in position, a second sleeve slidably ?tted on said main valve body and on the walls of said second 40 bore and carrying a valve body adapted to seat on the valve seat on the end of said sleeve in said ?rst bore, an outlet with which said second valve communicates, and a passage through said main valve body opening into said second bore 45 at a point beyond said sleeve in said second bore and communicating with the inlet in advance of said main valve seat. 2. In an apparatus of the class described, the combination of a valve casing having a cylindri 50 cal portion for receiving a pair of valve bodies and having an inlet and a discharge, a main valve seat at said inlet, and a cylindrical main valve body disposed in said cylindrical portion of the valve casing and spaced from the walls thereof, a spring urging said main valve body on its seat, and adjusting means for controlling the force combination of a passage having an inlet and an outlet, a valve in said passage having a valve seat and a valve body and a spring to oppose the ?ow of ?uid through the passage from the inlet, and means for adjusting the force of the spring, a 45 second valve in said passage having a valve seat and a valve body having a hydraulic cylinder and piston for forcing said valve body of said second valve to its seat, said apparatus being formed with a passage leading from the inlet passage in advance of said first valve seat to said hydraulic cylinder, whereby the pressure of ?uid ?owing through said passage tends to urge said second valve body to its seat in opposition to the ?ow of ?uid through said passage. EARL P. ORDWAY.