Method and apparatus for dampening noise occurring in liquid heaters operating according to the vacuum vaporization principle |
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| 申请号 | US29903672 | 申请日 | 1972-10-19 | 公开(公告)号 | US3877511A | 公开(公告)日 | 1975-04-15 |
| 申请人 | STOTZ & CO; | 发明人 | BRANDL WILLI; KOULA ZDENEK; NIRK PETER; | ||||
| 摘要 | A method for dampening noise occurring in liquid heaters operating according to the vacuum vaporization principle owing to pronounced vapor formation at the heating surfaces which contemplate opposing the formation of vapor bubbles at the heating liquid through the action of obstruction or damming up means. The equipment for the performance of the aforesaid method employs obstruction or damming-up means arranged at the vacuum vessel or container which oppose the formation of vapor bubbles at the heating liquid. | ||||||
| 权利要求 | 1. A method for dampening the development of sound occurring at a liquid heater having a vacuum vessel adapted to contain a heating liquid and operating according to the vacuum vaporization principle owing to pronounced development of vapor at the heating surfaces thereof, comprising the steps of providing noise suppression means comprising particulate material having a grain size less than 5 mm, said material disposed within said vacuum vessel and at least partially filling the space therein occupied by said heating liquid, and opposing the formation of vapor bubbles at the heating liquid by means of said noise suppression means. 2. The method as defined in claim 1, including the step of selecting a particulate material having a grain size in the range of 1.5 to 5 mm. 3. The method as defined in claim 2, wherein the selected particulate material has a grain size in the range of 1.5 to 2mm. 4. The method as defined in claim 1, including the step of selecting sand as the particulate material. 5. The method as defined in claim 4, wherein the selected sand is quartz sand. 6. The method as defined in claim 4, including the step of covering the sand at its top with a layer of sand of coarser granulation. 7. The method as defined in claim 4, including the step of covering the sand with a sieve. 8. The method as defined in claim 1, including the step of filling said vacuum vessel of the liquid heater with the particulate material at least up to approximately the surface of the heating liquid thereof. 9. The method as defined in claim 1, including the step of filling the vacuum vessel of the liquid heater with the particulate material to a level exceeding the surface of the heating liquid thereof. 10. The combination with a liquid heater working according to the vacuum vaporization principle and including a vacuum vessel containing a heating liquid, of means for suppressing the formation of noise at the liquid heater, said noise suppression means comprising particulate material having a grain size less than 5 mm, said material disposed within said vacuum vessel and at least partially filling the space therein occupied by said heating liquid. 11. The combination as defined in claim 10, wherein the particulate material has a grain size in the range of 1.5 to 5 mm. 12. The combination as defined in claim 10, wherein the granular material possesses a grain size in the range of 1.5 to 2 mm. 13. The combination as defined in claim 10, wherein the particulate material is sand. 14. The combination as defined in claim 13, wherein the sand is quartz sand. 15. The combination as defined in claim 13, wherein the sand is covered at its top with a layer of sand of coarser granulation. 16. The combination as defined in claim 13, wherein the sand is covered at its top with a sieve. 17. The combination as defined in claim 10, wherein the vacuum vessel is filled with the particulate material at least approximately to the surface of the heating liquid. 18. The combination as defined in claim 10, wherein the particulate material is filled into the vacuum vessel to a point exceeding the surface of the heating liquid. |
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