Bearing wind refrigerating mechanism of high-temperature pump
An air-cooled, high-temperature pump technology, which is applied to parts, pumps, and pump components of pumping devices used for elastic fluids, can solve the problems of large space occupation and unsatisfactory cooling effect of bearings, and achieve a compact and effective device structure. High cooling and heat transfer efficiency
Inactive Publication Date: 2009-06-10
JIANGSU UNIV
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Problems solved by technology
[0003] In order to overcome the shortcomings of the large space occupied by the current water cooling system and the unsatisfactory cooling effect of the bearing in the air cooling device, the present invention provides an air cooling device for high temperature pump bearings
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Embodiment Construction
[0009] A high-temperature pump bearing air cooling device, which is provided with a motor support 6 and a bearing box 11 whose side communicates with the outside world. The upper end of the upper end is open, communicates with the internal space of the motor support 6, and indirectly communicates with the outside air. The compression ring 8 cooperates with the main shaft and is located in the cover tube 7. The lower part of the compression ring 8 is a sealing ring 9, which is embedded in the belt rib 12. In the upper gland 10, a rib 12 is welded on the side wall of the upper gland 10, and the lower part of the upper gland 10 is a round nut 16, and the lower part of the round nut 16 is connected with the main shaft by a key and rotates with the main shaft. Bearing support 17, the bearing is located in the bearing box 11, the side of the bearing box 11 has welding ribs 12, the lower part of the bearing box 11 is an impeller chamber 18, the impeller chamber 18 is provided with a c...
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A bearing wind cooling device of a high temperature pump relates to a bearing cooling device. By arranging a cover cylinder, a fin, a suction hole, an exhaust hole, an eccentric impeller and a back vane, the negative pressure at the inlet of the eccentric impeller presses the cold air to carry out the circulation and a passage is formed in the interior of the cover cylinder where the airflow is pressed to be sucked; the cold air is subject to the action of the fin on a sleeve and the action of an upper press cover wall surface and a bearing box side fin, the heat transmission between the bearing box side wall and the welding fin is reinforced, finally the air is discharged out from the impeller room and the circulation process is ended; by arranging the back vane in the impeller room, the residual heat transmitted from the lower part can be effectively taken away, and a plurality of heat transmission ways effectively solve the cooling problem of the high temperature pump bearing.
Description
technical field [0001] The invention relates to a bearing cooling device, in particular to a high-temperature pump bearing air cooling device used in special industries such as high-temperature medium transportation. Background technique [0002] The temperature of the medium conveyed by high temperature pumps is generally above 200°C to 460°C. The cooling system design of pump bearings under high temperature conditions is currently a difficult problem in the design and operation of high temperature pumps at home and abroad. The current high-temperature pump bearing cooling mainly adopts water cooling method. A water cooling chamber with a large cavity is designed outside the pump shaft and the supporting bearing. A small gap is used between the outer wall of the cooling chamber and the shaft, and the heat dissipated by the shaft is absorbed. The passing large flow of cooling water is quickly taken away, so that the heat transferred to the bearing is minimized. The water co...
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IPC IPC(8): F04D29/58
Inventor 杨敏官康灿高波刘栋
Owner JIANGSU UNIV