Cooling device for guide bearing bush of water-turbine generator set

Abstract

The utility model relates to the technical field of bearing bush cooling, and discloses a water-turbine generator set guide bearing bush cooling device which comprises a water-turbine generator body, a shaft body is fixed to the acting end of the water-turbine generator body, and a bearing bush body is arranged on the surface of the shaft body. The hydraulic generator comprises a hydraulic generator body, fixing feet used for limiting the position of the hydraulic generator body are arranged on the surface of the hydraulic generator body, an acting shell is fixed to the surfaces of the fixing feet, a cooling mechanism is arranged on the surface of the acting shell, and a liquid returning mechanism used for returning liquid is arranged on the surface of the cooling mechanism. When the hydro-generator body works, a worker can use the cooling mechanism to cool the bearing bush body, under the action of the liquid return mechanism, cooling liquid can be filtered and then input into the cooling mechanism again, the purpose of secondary utilization is achieved, and in addition, under the action of the heat dissipation mechanism, the cooling effect of the bearing bush body is improved. And cooling liquid in the liquid return mechanism is cooled, so that the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing cooling, in particular to a guide bearing cooling device for a hydro-generator set. Background Art

[0002] A hydroelectric generator is a device that converts water flow energy into mechanical energy, which is then converted into electrical energy through a generator. It primarily consists of two components: a turbine (including the runner and water guide mechanism) and a generator (including the stator, rotor, and excitation system). The turbine rotates when water impacts the runner, driving the generator rotor to generate electricity.

[0003] Thrust bearings are one of the core components of hydro-turbine generator sets. Cooling of bearing temperature has always been the most concerned issue in thrust bearing design. The temperature rise is directly related to the safe operation of the unit. At present, when cooling the bearing, some mechanisms use a direct coolant injection method. When the coolant contacts the bearing, the coolant takes away the heat from the bearing surface, thereby achieving the purpose of cooling. However, some devices are unable to recycle the coolant for secondary use, which in a certain sense causes a waste of resources. Utility Model Content

[0004] The purpose of the utility model is to provide a guide bearing cooling device for a hydro-generator set to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a guide bearing cooling device for a hydro-turbine generator set, comprising a hydro-turbine generator body, a shaft body fixed to the active end of the hydro-turbine generator body, a bearing body provided on the surface of the shaft body, a fixing foot for limiting the position of the hydro-turbine generator body provided on the surface of the hydro-turbine generator body, an active shell fixed to the surface of the fixing foot, a cooling mechanism provided on the surface of the active shell, a liquid return mechanism for returning liquid provided on the surface of the cooling mechanism, and a heat dissipation mechanism provided on one side of the surface of the liquid return mechanism.

[0006] Preferably, the cooling mechanism includes a liquid storage shell opened on one side of the surface of the working shell, the surface of the liquid storage shell is connected to a liquid injection port, the surface of the liquid storage shell is connected to a first liquid pump, the output end of the first liquid pump is connected to an annular shell, and the surface of the annular shell is connected to several liquid spray heads.

[0007] Preferably, sealing covers are fixed on both sides of the surface of the annular shell, and the shaft body passes through and rotates on the sealing covers.

[0008] Preferably, the liquid spray head is an atomizing nozzle, and the action direction of the plurality of liquid spray heads are all directed toward the bearing body.

[0009] Preferably, the liquid return mechanism includes a filter plate fixed to one side of the annular shell surface, the surface of the filter plate is connected to the liquid return shell, the inner cavity of the liquid return shell is provided with a liquid suction pipe, the other end of the liquid suction pipe is connected to a cooling pipe, the other end of the cooling pipe is connected to a second liquid pump, and the other end of the second liquid pump is connected to the inner cavity of the liquid storage shell.

[0010] Preferably, the heat dissipation mechanism includes a motor fixed to one side of the working shell surface, the output shaft of the motor is fixed with a driving rotating shaft, the surface of the driving rotating shaft is provided with a plurality of driven shafts through bevel gear transmission, and a fan is fixed to one end of the driven shaft.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] During the operation of the hydro-generator body, the staff of the utility model can use the cooling mechanism to cool the bearing body, and under the action of the liquid return mechanism, the coolant can be filtered and input into the cooling mechanism again to achieve the purpose of secondary utilization. In addition, under the action of the heat dissipation mechanism, the coolant in the liquid return mechanism can be cooled, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from another side perspective;

[0015] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0016] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0017] In the figure: 1. Hydro-generator body; 2. Shaft body; 3. Bearing body; 4. Fixed foot; 5. Working shell; 6. Cooling mechanism; 61. Liquid storage shell; 62. Liquid injection port; 63. First liquid pump; 64. Annular shell; 65. Liquid spray head; 7. Liquid return mechanism; 71. Filter plate; 72. Liquid return shell; 73. Liquid suction pipe; 74. Cooling pipe; 75. Second liquid pump; 8. Heat dissipation mechanism; 81. Motor; 82. Active rotating shaft; 83. Driven shaft; 84. Fan; 9. Sealing cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-4 As shown, a guide bearing cooling device for a hydro-generator set includes a hydro-generator body 1, a shaft body 2 is fixed to the active end of the hydro-generator body 1, a bearing body 3 is provided on the surface of the shaft body 2, a fixing foot 4 for limiting the position of the hydro-generator body 1 is provided on the surface of the hydro-generator body 1, an active shell 5 is fixed to the surface of the fixing foot 4, a cooling mechanism 6 is provided on the surface of the active shell 5, a liquid return mechanism 7 for returning liquid is provided on the surface of the cooling mechanism 6, and a heat dissipation mechanism 8 for dissipating heat is provided on one side of the surface of the liquid return mechanism 7.

[0020] During the operation of the hydro-generator body 1 of the present invention, the staff can use the cooling mechanism 6 to cool the bearing body 3, and under the action of the liquid return mechanism 7, the coolant can be filtered and then input into the cooling mechanism 6 again to achieve the purpose of secondary utilization. In addition, under the action of the heat dissipation mechanism 8, the coolant in the liquid return mechanism 7 can be cooled and cooled, thereby improving the practicality of the device.

[0021] The cooling mechanism 6 includes a liquid storage shell 61 opened on one side of the surface of the working shell 5, the surface of the liquid storage shell 61 is connected to a liquid injection port 62, the surface of the liquid storage shell 61 is connected to a first liquid pump 63, the output end of the first liquid pump 63 is connected to an annular shell 64, and the surface of the annular shell 64 is connected to several spray heads 65. In this embodiment, through the arrangement of the liquid storage shell 61, the liquid injection port 62, the first liquid pump 63, the annular shell 64 and the spray head 65, under the action of the liquid injection port 62, the cooling liquid can be filled into the liquid storage shell 61, and then under the action of the first liquid pump 63, the cooling liquid in the liquid storage shell 61 can flow from the annular shell 64 to the spray head 65, and then under the action of the spray head 65, it is sprayed to the surface of the bearing body 3.

[0022] Sealing covers 9 are fixed on both sides of the surface of the annular shell 64, and the shaft body 2 passes through and rotates on the sealing covers 9. In this embodiment, the setting of the sealing covers 9 prevents the coolant from flowing out from both sides of the annular shell 64, allowing more of it to enter the liquid return mechanism 7.

[0023] The spray head 65 is an atomizing spray head, and several spray heads 65 are directed toward the bearing body 3. In this embodiment, through this arrangement, when the coolant acts on the surface of the bearing body 3 through the spray head 65, the spraying area can be increased, thereby improving the practicality of the cooling mechanism 6.

[0024] The liquid return mechanism 7 includes a filter plate 71 fixed to one side of the surface of the annular shell 64. The surface of the filter plate 71 is connected to the liquid return shell 72. The inner cavity of the liquid return shell 72 is provided with a liquid suction pipe 73. The other end of the liquid suction pipe 73 is connected to the cooling pipe 74. The other end of the cooling pipe 74 is connected to the second liquid pump 75. The other end of the second liquid pump 75 is connected to the inner cavity of the liquid storage shell 61. In this embodiment, through the arrangement of the filter plate 71, the liquid return shell 72, the liquid suction pipe 73, the cooling pipe 74 and the second liquid pump 75, under the action of the filter plate 71, the coolant can be filtered and flow into the liquid return shell 72, and under the action of the second liquid pump 75, the coolant in the liquid return shell 72 reaches the liquid storage shell 61 through the liquid suction pipe 73 and the cooling pipe 74.

[0025] The heat dissipation mechanism 8 includes a motor 81 fixed to one side of the surface of the working shell 5. The output shaft of the motor 81 is fixed with a driving rotating shaft 82. The surface of the driving rotating shaft 82 is provided with a plurality of driven shafts 83 through a bevel gear transmission. A fan 84 is fixed to one end of the driven shaft 83. In this embodiment, through the arrangement of the motor 81, the driving rotating shaft 82, the driven shaft 83 and the fan 84, the driving rotating shaft 82 can be rotated under the action of the motor 81, and the driven shaft 83 drives the fan 84 to rotate under the action of the bevel gear, thereby blowing air to the cooling pipe 74 to achieve a cooling effect.

[0026] Working principle: During use, if the bearing body 3 needs to be cooled, the staff can add coolant to the liquid storage shell 61 through the liquid injection port 62, and then use the first liquid pump 63. Under the action of the first liquid pump 63, the coolant in the liquid storage shell 61 is sprayed onto the surface of the bearing body 3 through the annular shell 64 and the liquid spray head 65, thereby achieving the purpose of cooling. When the coolant flows, it will pass through the filter plate 71 and enter the liquid return shell 72. At this time, under the action of the second liquid pump 75, the suction pipe 73 can absorb the coolant in the liquid return shell 72, and return it to the liquid storage shell 61 again through the cooling pipe 74 and the suction pipe 73, so as to achieve the effect of reuse. In addition, under the action of the motor 81, the active rotating shaft 82 and the driven shaft 83 can drive the fan 84 to rotate, and through the openings on both sides of the surface of the action shell 5, air flows on the surface of the cooling pipe 74, thereby improving the cooling effect of the coolant in the cooling pipe 74 and preventing the coolant in the cooling pipe 74 from bringing too much heat into the liquid storage shell 61.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide bearing cooling device for a hydro-generator set, comprising a hydro-generator body (1), characterized in that: The working end of the hydro-generator body (1) is fixed with a shaft body (2), the surface of the shaft body (2) is provided with a bearing body (3), the surface of the hydro-generator body (1) is provided with a fixing foot (4) for limiting the position of the hydro-generator body (1), the surface of the fixing foot (4) is fixed with an working shell (5), the surface of the working shell (5) is provided with a cooling mechanism (6), the surface of the cooling mechanism (6) is provided with a liquid return mechanism (7) for returning liquid, and one side of the surface of the liquid return mechanism (7) is provided with a heat dissipation mechanism (8) for heat dissipation; The cooling mechanism (6) includes a liquid storage shell (61) opened on one side of the surface of the working shell (5), the surface of the liquid storage shell (61) is connected to a liquid injection port (62), the surface of the liquid storage shell (61) is connected to a first liquid pump (63), the output end of the first liquid pump (63) is connected to an annular shell (64), and the surface of the annular shell (64) is connected to a plurality of liquid spray heads (65); The liquid return mechanism (7) includes a filter plate (71) fixed to one side of the surface of the annular shell (64); the surface of the filter plate (71) is connected to the liquid return shell (72); the inner cavity of the liquid return shell (72) is provided with a liquid suction pipe (73); the other end of the liquid suction pipe (73) is connected to a cooling pipe (74); the other end of the cooling pipe (74) is connected to a second liquid pump (75); the other end of the second liquid pump (75) is connected to the inner cavity of the liquid storage shell (61).

2. A cooling device for a guide bearing of a hydro-generator set according to claim 1, characterized in that: Sealing covers (9) are fixed on both sides of the surface of the annular shell (64), and the shaft body (2) passes through and rotates on the sealing covers (9).

3. The guide bearing cooling device for a hydro-generator set according to claim 1, characterized in that: The liquid spray head (65) is an atomizing spray head, and the action direction of the plurality of liquid spray heads (65) is all toward the bearing bush body (3).

4. The guide bearing cooling device for a hydro-generator set according to claim 1, characterized in that: The heat dissipation mechanism (8) includes a motor (81) fixed to one side of the surface of the working shell (5); an active rotating shaft (82) is fixed to the output shaft of the motor (81); a plurality of driven shafts (83) are provided on the surface of the active rotating shaft (82) through bevel gear transmission; a fan (84) is fixed to one end of the driven shaft (83).

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