Upper and lower guide cooling device of hydropower station unit

Abstract

The utility model discloses an upper and lower guide cooling device of a hydropower station unit, which comprises a water storage tank, a circulating pump, a water delivery pipe, a unit main body, radiating fins, a water return pipe and a cleaning device. A driving gear and a gear ring are meshed to rotate and simultaneously drive a shielding cover and four groups of cleaning mechanisms to synchronously rotate, so that the effect of cleaning dust on cooling fins on the outer side of the unit main body is achieved, and the heat dissipation performance of the unit main body is improved; the movable long plate fixes the bottom of the inner side of the shielding cover through cooperation of a fixing screw and a nut, and circumferentially slides through a sliding block and a sliding groove in the inner side of the bottom plate, so that the positioning effect on the movable long plate is improved, and the cleaning effect of the cleaning brush is indirectly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation equipment of a hydropower station, in particular to an upper and lower guide cooling device for a unit of a hydropower station. Background Art

[0002] The water supply in a hydropower station is mainly for cooling generators and transformers. The reliability and quality of cooling water supply have a great impact on the normal operation of the power station. Generally, water is taken in front of the dam, in the volute, or downstream. Such water supply is easily affected by silt and floating objects, and the water supply quality is difficult to guarantee.

[0003] For example, application number CN201520029872.0 discloses "A circulating cooling device for a hydropower station unit". The liquid cooling device can effectively take away the heat generated by the turbine bearing during operation, thereby improving the heat dissipation efficiency of the turbine bearing in the unit. The heat sink further dissipates the heat generated by the turbine bearing during operation, thereby stabilizing the working environment temperature of the turbine bearing. The temperature sensor can monitor the temperature of the coolant in the coolant storage tank at all times. When the coolant reaches a certain temperature, the coolant after absorbing heat can be quickly cooled by the cooling pool, thereby improving the efficiency and cooling effect of the circulating cooling of the turbine bearing by the liquid cooling device, thereby ensuring the safe and stable operation of the hydropower station unit.

[0004] However, since the heat sink is installed on the outer surface of the hydropower station unit, after the unit has been working for a period of time, dirt or impurities are easily adhered to the heat sink, affecting the heat dissipation effect of the heat sink. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides an upper and lower cooling device for a hydropower station unit, which solves the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a hydropower station unit upper and lower cooling device, including a water storage tank, a circulating pump, a water pipe, a unit body, a heat sink, a return pipe and a cleaning device, a circulating pump is installed at the bottom of the water storage tank, the circulating pump and the lower left end of the unit body are connected with the water pipe, the outer surface of the unit body is distributed with heat sinks, the upper end of the water storage tank is connected with the upper left end of the unit body through the return pipe, the unit body is installed on the inner side of the cleaning device, the cleaning device includes a fixing plate, a driving motor, a driving shaft, a driving gear, a gear ring, a shielding cover, a cleaning device, a cooling fan ... The cleaning mechanism and the bottom plate are provided with a driving motor at the top of the fixed plate, and the output end of the driving motor is connected to the upper end of the driving shaft by a coupling. The middle part of the driving shaft is fixed to the inner side of the middle part of the driving gear, and the right end of the driving gear meshes and rotates with the inner side of the gear ring, and the gear ring is installed on the inner lower side of the shielding cover. The cleaning mechanism is fixed to the inner bottom of the shielding cover, and the lower end of the cleaning mechanism is slidably matched with the inner side of the upper end of the bottom plate. The fixed plate is fixed to the right side of the top of the unit body, and the bottom of the driving shaft is rotatably matched with the right side of the top of the unit body. The bottom of the unit body is fixed to the inner side of the upper end of the bottom plate.

[0009] Preferably, the cleaning mechanism includes a movable long plate, a fixed screw, a cleaning brush and a slider. The upper and lower ends of the movable long plate are respectively installed with a fixed screw and a slider. The rear side of the movable long plate is installed with a cleaning brush. The upper end of the fixed screw is fixed to the inner bottom of the shielding cover, and the slider is slidably matched with the inner side of the upper end of the bottom plate.

[0010] Preferably, the inner cross-section of the fixing plate is arranged in an inverted L shape, and the driving motor, the driving shaft and the driving gear are distributed along the same vertical line along the right end of the fixing plate.

[0011] Preferably, a circular notch is provided at the bottom of the shielding cover, and the size of the notch matches the upper end of the unit body, so that the bottom notch of the shielding cover matches the upper end of the unit body and the shielding cover rotates along the upper end of the unit body.

[0012] Preferably, a gear ring is provided on the inner side of the shielding cover, and the shielding cover is rotated by meshing with the gear ring through a driving gear, and the shielding cover is adjusted by circular rotation through the meshing of the gear ring.

[0013] Preferably, the cleaning mechanism is provided with four groups, the top ends of the four groups of cleaning mechanisms respectively penetrate through the inner side of the bottom of the gear ring, and the top ends of the cleaning mechanisms are fixedly connected to the inside of the shielding cover through nuts, so that the four groups of cleaning mechanisms respectively achieve the effect of heat dissipation along the heat sinks on the outer surface of the unit body.

[0014] Preferably, a sliding groove is provided on the inner side of the bottom plate, and protrusions are provided on the left and right sides of the sliding block, and the sliding block is in an annular sliding fit with the inner side of the bottom plate through the protrusions.

[0015] Preferably, the fixing screw is made of stainless steel and has good wear resistance and toughness.

[0016] (III) Beneficial effects

[0017] The utility model provides an upper and lower cooling device for a hydropower station unit. It has the following beneficial effects: by setting a cleaning device, the driving motor is used to make the driving shaft and the driving gear rotate synchronously, the driving gear is meshed with the gear ring and rotates synchronously with the shielding cover and four cleaning mechanisms, so as to clean the dust on the heat sink outside the unit body, thereby improving the heat dissipation of the unit body.

[0018] The utility model provides an upper and lower cooling device for a hydropower station unit, which has the following beneficial effects: by setting a cleaning mechanism, the movable long plate is fixed to the inner bottom of the shielding cover through a fixing screw rod and a nut, and a slider slides in a circle with the inner slide groove of the bottom plate, thereby increasing the positioning effect of the movable long plate and indirectly improving the cleaning effect of the cleaning brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the planar structure of the cleaning device of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the cleaning device of the utility model from a top view;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the utility model.

[0024] In the figure: water tank-1, circulation pump-2, water pipe-3, unit body-4, heat sink-5, return pipe-6, cleaning device-7, fixed plate-71, drive motor-72, drive shaft-73, drive gear-74, gear ring-75, shielding cover-76, cleaning mechanism-77, bottom plate-78, movable long plate-771, fixed screw-772, cleaning brush-773, slider-774. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 and 2 The utility model provides a technical solution for an upper and lower cooling device for a hydropower station unit: an upper and lower cooling device for a hydropower station unit, comprising a water storage tank 1, a circulating pump 2, a water delivery pipe 3, a unit body 4, a heat sink 5, a return pipe 6 and a cleaning device 7. The circulating pump 2 is installed at the bottom of the water storage tank 1, the circulating pump 2 and the lower left end of the unit body 4 are connected through the water delivery pipe 3, the outer surface of the unit body 4 is distributed with heat sinks 5, the upper end of the water storage tank 1 is connected to the upper left end of the unit body 4 through the return pipe 6, and the unit body 4 is installed on the inner side of the cleaning device 7.

[0027] See also Figure 3 and 4The utility model provides a technical solution for the upper and lower guide cooling device of a hydropower station unit: a hydropower station unit upper and lower guide cooling device, the cleaning device 7 includes a fixed plate 71, a drive motor 72, a drive shaft 73, a drive gear 74, a gear ring 75, a shielding cover 76, a cleaning mechanism 77 and a bottom plate 78. The top of the fixed plate 71 is equipped with a drive motor 72, the output end of the drive motor 72 is connected to the upper end of the drive shaft 73 by a coupling, the middle part of the drive shaft 73 is fixed to the inner side of the middle part of the drive gear 74, the right end of the drive gear 74 is meshed and rotated with the inner side of the gear ring 75, the gear ring 75 is installed on the lower side of the inner part of the shielding cover 76, the cleaning mechanism 77 is fixed to the inner bottom of the shielding cover 76, the lower end of the cleaning mechanism 77 is slidably matched with the inner side of the upper end of the bottom plate 78, the fixed plate 71 is fixed to the right side of the top of the unit body 4, the bottom of the drive shaft 73 is rotatably matched with the right side of the top of the unit body 4, the bottom of the unit body 4 The inner cross section of the fixing plate 71 is set in an inverted L shape, and the driving motor 72, the driving shaft 73 and the driving gear 74 are arranged in the same vertical line along the right end of the fixing plate 71. A circular notch is provided at the bottom of the shielding cover 76, and the size of the notch coincides with the upper end of the unit body 4, so that the bottom notch of the shielding cover 76 coincides with the upper end of the unit body 4, and the shielding cover 76 rotates along the upper end of the unit body 4. A gear ring 75 is provided on the inner side of the shielding cover 76, and the shielding cover 76 is meshed and rotated with the gear ring 75 through the driving gear 74, and the shielding cover 76 is meshed with the gear ring 75 for circular rotation adjustment. The top ends of the four groups of cleaning mechanisms 77 respectively penetrate the bottom inner side of the gear ring 75, and the top ends of the cleaning mechanisms 77 are fixedly connected to the inside of the shielding cover 76 through nuts, and the heat dissipation effect is achieved through the four groups of cleaning mechanisms 77 along the heat sink 5 on the outer surface of the unit body 4.

[0028] See also Figure 5 The utility model provides a technical solution for the upper and lower guide cooling device of a hydropower station unit: a hydropower station unit upper and lower guide cooling device, the cleaning mechanism 77 includes a movable long plate 771, a fixed screw 772, a cleaning brush 773 and a slider 774, the upper and lower ends of the movable long plate 771 are respectively installed with a fixed screw 772 and a slider 774, the rear side of the movable long plate 771 is installed with a cleaning brush 773, the upper end of the fixed screw 772 is fixed to the inner bottom of the shielding cover 76, the slider 774 is slidably matched with the inner side of the upper end of the bottom plate 78, the inner side of the bottom plate 78 is provided with a slide groove, the left and right sides of the slider 774 are provided with bumps, the slider 774 is slidably matched with the inner side of the bottom plate 78 through the bumps, and the fixed screw 772 is made of stainless steel and has good wear resistance and toughness.

[0029] When in use, the bottoms of the four cleaning mechanisms 77 are respectively inserted vertically into the front end middle notches of the inner slide grooves of the bottom plate 78, and the four cleaning mechanisms 77 are respectively placed in the positions of the inner slide grooves of the bottom plate 78;

[0030] Subsequently, the fixing screws 772 at the heads of the four sets of movable long plates 771 are respectively passed through the inner bottom of the shielding cover 76, and then the inner bottom of the shielding cover 76 is fixed by the fixing screws 772 and the nuts, and the driving motor 72 is used to make the driving shaft 73 and the driving gear 74 rotate synchronously, and the driving gear 74 meshes and rotates with the ring gear 75, and at the same time, the shielding cover 76 and the four sets of cleaning mechanisms 77 rotate synchronously, thereby cleaning the dust on the heat sink 5 outside the unit body 4, thereby improving the heat dissipation of the unit body 4.

[0031] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0032] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for upper and lower guides of a hydropower station unit, comprising a water storage tank (1), a circulating pump (2), a water delivery pipe (3), a unit body (4), a heat sink (5) and a return pipe (6), wherein a circulating pump (2) is installed at the bottom of the water storage tank (1), the circulating pump (2) and the lower left end of the unit body (4) are connected through the water delivery pipe (3), the outer surface of the unit body (4) is provided with heat sinks (5), and the upper end of the water storage tank (1) is connected to the upper left end of the unit body (4) through the return pipe (6); Features: The cleaning device (7) is also included. The unit body (4) is installed on the inner side of the cleaning device (7). The cleaning device (7) includes a fixing plate (71), a driving motor (72), a driving shaft (73), a driving gear (74), a gear ring (75), a shielding cover (76), a cleaning mechanism (77) and a bottom plate (78). The top end of the fixing plate (71) is installed with a driving motor (72). The output end of the driving motor (72) is connected to the upper end of the driving shaft (73) by a coupling. The middle part of the driving shaft (73) is connected to the inner side of the middle part of the driving gear (74). The right end of the driving gear (74) meshes and rotates with the inner side of the ring gear (75), the ring gear (75) is installed on the inner lower side of the shielding cover (76), the cleaning mechanism (77) is fixed to the inner bottom of the shielding cover (76), the lower end of the cleaning mechanism (77) is slidably matched with the inner side of the upper end of the bottom plate (78), the fixing plate (71) is fixed to the right side of the top of the unit body (4), the bottom of the driving shaft (73) is rotatably matched with the right side of the top of the unit body (4), and the bottom of the unit body (4) is fixed to the inner side of the upper end of the bottom plate (78).

2. The upper and lower cooling device of a hydropower station unit according to claim 1, characterized in that: The cleaning mechanism (77) comprises a movable long plate (771), a fixed screw (772), a cleaning brush (773) and a sliding block (774); the upper and lower ends of the movable long plate (771) are respectively provided with a fixed screw (772) and a sliding block (774); the rear side of the movable long plate (771) is provided with a cleaning brush (773); the upper end of the fixed screw (772) is fixed to the inner bottom of the shielding cover (76); and the sliding block (774) is slidably matched with the inner side of the upper end of the bottom plate (78).

3. The upper and lower cooling device of a hydropower station unit according to claim 1, characterized in that: The inner cross section of the fixing plate (71) is arranged in an inverted L shape, and the driving motor (72), the driving shaft (73) and the driving gear (74) are arranged along the right end of the fixing plate (71) in a same vertical line.

4. The upper and lower cooling device for a hydropower station unit according to claim 1, characterized in that: The bottom of the shielding cover (76) is provided with a circular notch, the size of which matches the upper end of the unit body (4).

5. The upper and lower cooling device for a hydropower station unit according to claim 1, characterized in that: A gear ring (75) is provided on the inner side of the shielding cover (76), and the shielding cover (76) rotates by meshing with the gear ring (75) through a driving gear (74).

6. The upper and lower cooling device for a hydropower station unit according to claim 1, characterized in that: The cleaning mechanisms (77) are provided in four groups, and the top ends of the four groups of cleaning mechanisms (77) respectively penetrate the inner side of the bottom of the gear ring (75), and the top ends of the cleaning mechanisms (77) are fixedly connected to the inside of the shielding cover (76) via nuts.

7. The upper and lower cooling device for a hydropower station unit according to claim 2, characterized in that: A sliding groove is provided on the inner side of the bottom plate (78), and protrusions are provided on the left and right sides of the sliding block (774). The sliding block (774) slides with the inner side of the bottom plate (78) in a ring-shaped sliding fit via the protrusions.

Images