Method and apparatus for preventing water hammer in high pressure steam injection water heaters
AssigneePick Heaters, Inc.
InventorAlan E. Pick
Life of this patent
Estimating the term…
Abstract
A foraminous steam injection tube is mounted within a heating chamber to inject steam into water flowing through the heating chamber to heat the water. A foraminous diffusion screen is mounted around the steam injection tube and in spaced tandem relation, to diffuse the steam jets issuing therefrom, suppress the formation of large bubbles and to eliminate water hammer in the system.
Claims13
In a steam injection liquid heater having a heating chamber, inlet means to supply liquid to said heating chamber and a foraminous steam injection tube comprising a steam chamber within said heating chamber for injecting steam jets from the steam chamber into liquid in said heating chamber to heat the same, the improvement for reducing water hammer noise as the steam mixes with the liquid and comprising means to intercept said steam jets and disposed about said steam injection tube for intercepting jets of steam issuing therefrom and diffusing said jets as they enter the liquid.
A method of preventing water hammer in a steam injection water heater having an orificed steam injection tube surrounded by a body of water which injects jets of steam into said body of water about the tube to form steam bubbles in the body of water, said method comprising intercepting said jets of steam after they have issued from the orifices in the tube and before the bubbles have formed, thus to diffuse said intercepted jets and reduce the size of bubbles formed by said jets in said body of water.
A method of preventing water hammer in a steam injection water heater having a heating chamber containing water and means for jetting steam into the water to form steam bubbles in the water, said method comprising reducing the size of bubble growth in said body of water by jetting the steam into the water through first and second tandem related foraminous screens, said second screen intercepting steam jets injected into the water through the first screen.
Dependencies are inferred from the claim text.