Oil cooling circulation heat dissipation structure of gearbox of wind driven generator

Abstract

The utility model discloses a wind driven generator gear box oil cooling circulation heat dissipation structure which comprises a first circulation pump which is connected to the right side of a wind driven generator gear box through an oil conveying pipe and used for extracting lubricating oil, and the right side of the first circulation pump is connected with a cold circulation heat dissipation assembly through a fixed connecting assembly. The wind driven generator cooling device has the advantages that the wind driven generator cooling device can firmly connect the wind driven generator gearbox and the cold circulation heat dissipation assembly through the fixed connecting assembly, installation is convenient, and meanwhile cooling circulation of the cold circulation heat dissipation assembly and the cooling liquid circulation assembly in a matched mode is facilitated; lubricating oil can circulate through the first heat exchange pipe, heat exchange and cooling heat dissipation are achieved in cooperation with the cooling liquid circulation assembly, cooling liquid can circulate in the cold circulation heat dissipation assembly by arranging the cooling liquid circulation assembly, heat exchange is achieved, and the heat dissipation effect of the cold circulation heat dissipation assembly is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind driven generator heat dissipation technical field, concretely is a kind of wind driven generator gear box oil cooling circulation heat dissipation structure. BACKGROUND

[0002] With the increasing demand for renewable energy worldwide, wind power as a clean, renewable energy form has been rapidly developed. Wind turbine as the core equipment of wind power, its performance and reliability directly affect the power generation efficiency and economic benefit of wind farm, gear box is an important part in wind turbine, it is responsible for the low speed of wind wheel conversion into the high speed required by generator, so as to realize the generation of electric energy. However, in the working process of gear box, due to friction and mechanical loss and other factors, a large amount of heat will be generated, and the high temperature will not only affect the service life of internal parts of gear box, but also may cause problems such as performance decline of lubricating oil and gear wear, and further affect the operation efficiency and safety of the whole wind turbine, so the use of good circulation heat dissipation structure affects the use effect of wind driven generator.

[0003] In the announcement No. CN204646556U, the utility model belongs to wind power technology field, disclose a kind of for wind turbine generator unit's generator and gear box's centralized cooling device. The device includes fan shell, fan shell is designed with fan, generator is provided with the generator water cooling device for the forced cooling of generator, gear box is provided with the gear box oil cooling device for the forced cooling of gear and bearing, fan shell is provided with multiple air inlets and two air outlets, one air outlet abuts the water circulation pipeline of generator water cooling device, another air outlet abuts the oil circulation pipeline of gear box oil cooling device. The cooling device is simple in structure, small in size, low in cost and easy to maintain.

[0004] The above-mentioned centralized cooling device can only dissipate heat from the outside of the case, and the effect is poor. After long-term use, heat will still accumulate, causing high temperature to affect the use of gears. Therefore, there is an urgent need for a wind driven generator gear box oil cooling circulation heat dissipation structure that is easy to install and use and has better circulation heat dissipation effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of wind driven generator gear box oil cooling circulation heat dissipation structure, solve the problems in the background art.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a wind driven generator gear box oil cooling circulation heat dissipation structure, include: through the oil pipe connection in the right side of wind driven generator gear box for lubricating oil extraction's first circulation pump, the right side of first circulation pump is connected with the cold circulation heat dissipation subassembly through fixed connection subassembly installation, the cold circulation heat dissipation subassembly front end is provided with cooling liquid circulation subassembly.

[0007] Preferably, the wind driven generator gear box is provided with two groups of lubricating oil circulation pipelines, the upper end pipeline of the wind driven generator gear box is a lubricating oil inlet pipe, and the lower end pipeline of the wind driven generator gear box is a lubricating oil outlet pipe, thereby providing conditions for circulation of the lubricating oil.

[0008] Preferably, the fixed connection subassembly comprises an oil cooling circulation pipe, the oil cooling circulation pipe is connected through two groups of connecting fixed discs and the cold circulation heat dissipation subassembly, a fixed sealing gasket is arranged between the two groups of connecting fixed discs, the two groups of connecting fixed discs are bolted through six groups of fixed bolts, a clamping groove matched with the fixed sealing gasket is formed in the left connecting fixed disc, and a bolt fixing groove matched with the fixed bolt is formed in the connecting fixed disc.

[0009] Preferably, the cold circulation heat dissipation subassembly comprises a support fixed plate, two groups of central connecting pipes are connected between the upper and lower ends of the two groups of support fixed plates, a first heat exchange pipe is arranged at the rear end of the two groups of support fixed plates, a second heat exchange pipe is arranged at the front end of the two groups of support fixed plates, and two side fixed bars are connected to the front and rear sides of the two groups of support fixed plates.

[0010] Preferably, the support fixed plate is provided with flow-through groove holes matched with the first heat exchange pipe and the second heat exchange pipe, the two side fixed bars are provided with fixed grooves matched with the plurality of heat dissipation plates, and the heat dissipation plates are provided with hole channels matched with the central connecting pipe, the first heat exchange pipe and the second heat exchange pipe.

[0011] Preferably, the cooling liquid circulating assembly comprises a cooling liquid containing barrel, a sealing plug is threadedly connected to the upper end of the cooling liquid containing barrel through a cooling liquid inlet, and a cold circulation heat dissipation assembly is connected to the left side of the cooling liquid containing barrel through a first circulating pipe and a second circulating pipe, and a second circulating pump is arranged in the second circulating pipe.

[0012] Preferably, a cavity matched with the cooling liquid is formed in the cooling liquid containing barrel, and a thread connection groove matched with the sealing plug is formed in the cooling liquid inlet, so that the filling of the cooling liquid is facilitated.

[0013] Compared with the prior art, the wind driven generator gear box oil cooling circulation heat dissipation structure has the following beneficial effects: the device can firmly connect the wind driven generator gear box and the cold circulation heat dissipation assembly through the fixed connection assembly, the cold circulation heat dissipation assembly and the cooling liquid circulating assembly are conveniently matched for cooling circulation, the lubricating oil can be circulated through the first heat exchange pipe and the cooling liquid circulating assembly to realize heat exchange and cooling heat dissipation, and the cooling liquid can be circulated in the cold circulation heat dissipation assembly through the cooling liquid circulating assembly to realize heat exchange and increase the heat dissipation effect of the cold circulation heat dissipation assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front end inclined plane overall structure schematic view of the wind driven generator gear box oil cooling circulation heat dissipation structure.

[0015] Figure 2 It is a rear end inclined plane overall structure schematic view of the wind driven generator gear box oil cooling circulation heat dissipation structure.

[0016] Figure 3 It is a structure schematic view of the fixed connection assembly in the wind driven generator gear box oil cooling circulation heat dissipation structure.

[0017] Figure 4 It is a structure schematic view of the cold circulation heat dissipation assembly in the wind driven generator gear box oil cooling circulation heat dissipation structure.

[0018] Figure 5 It is a structure schematic view of the cooling liquid circulating assembly in the wind driven generator gear box oil cooling circulation heat dissipation structure.

[0019] In the figure: 1, wind turbine gearbox; 2, the first circulating pump; 3, fixed connection assembly; 31, oil cooling circulation pipe; 32, connecting fixed disc; 33, fixed sealing pad; 34, fixed bolt; 4, cold circulation cooling assembly; 41, support fixed plate; 42, central connecting pipe; 43, first heat exchange pipe; 44, second heat exchange pipe; 45, both sides of the fixed pole; 46, heat dissipation plate; 5, cooling liquid circulation assembly; 51, cooling liquid containing barrel; 52, cooling liquid inlet; 53, sealing plug; 54, first circulating pipe; 55, second circulating pipe; 56, second circulating pump. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figure 1 and Figure 2 , a wind turbine gearbox oil cooling circulation cooling structure, comprising: the first circulating pump 2 for lubricating oil extraction is connected on the right side of the wind turbine gearbox 1 through the oil pipe, the right side of the first circulating pump 2 is installed and connected with the cold circulation cooling assembly 4 through the fixed connection assembly 3, and the front end of the cold circulation cooling assembly 4 is provided with the cooling liquid circulation assembly 5.

[0022] Implementation I: please refer to Figures 1 to 3 , in order to make the device installation and use more convenient, more firm connection, the wind turbine gearbox 1 is provided with two groups of lubricating circulating pipes, the upper end pipe of the wind turbine gearbox 1 is the lubricating oil inlet pipe, and the lower end pipe of the wind turbine gearbox 1 is the lubricating oil outlet pipe, which provides conditions for the circulation of lubricating oil, the fixed connection assembly 3 comprises the oil cooling circulation pipe 31, the oil cooling circulation pipe 31 is connected through the two groups of connecting fixed discs 32 and the cold circulation cooling assembly 4, the two groups of connecting fixed discs 32 are provided with the fixed sealing pad 33, the two groups of connecting fixed discs 32 are bolted through the six groups of fixed bolts 34, the left connecting fixed disc 32 is provided with the clamping groove matched with the fixed sealing pad 33, and the connecting fixed disc 32 is provided with the bolt fixing groove matched with the fixed bolt 34, so that the device can firmly connect the wind turbine gearbox 1 and the cold circulation cooling assembly 4 through the fixed connection assembly 3, and the cold circulation cooling assembly 4 and the cooling liquid circulation assembly 5 can be conveniently cooled and circulated.

[0023] Implementation II: please refer to Figure 1 , Figure 4 and Figure 5, in order to provide the heat dissipation effect of the device, the cold circulation heat dissipation assembly 4 comprises a support fixing plate 41, two groups of central connecting pipes 42 are connected between the upper and lower ends of the two groups of support fixing plates 41, a first heat exchange pipe 43 is arranged at the rear end of the two groups of support fixing plates 41, a second heat exchange pipe 44 is arranged at the front end of the two groups of support fixing plates 41, two side fixing rods 45 are connected to the front and rear sides of the two groups of support fixing plates 41, a plurality of heat dissipation plates 46 are arranged between the central connecting pipes 42 and the two side fixing rods 45, by arranging the cold circulation heat dissipation assembly 4, the lubricating oil can circulate through the first heat exchange pipe 43, and heat exchange is realized by cooperating with the cooling liquid circulating assembly 5 to cool and dissipate heat, the support fixing plate 41 is provided with flow recess holes matched with the first heat exchange pipe 43 and the second heat exchange pipe 44, the two side fixing rods 45 are provided with fixing grooves matched with the plurality of heat dissipation plates 46, and the heat dissipation plates 46 are provided with hole channels matched with the central connecting pipes 42, the first heat exchange pipe 43 and the second heat exchange pipe 44, thereby providing a basis for heat exchange between the first heat exchange pipe 43 and the second heat exchange pipe 44, the cooling liquid circulating assembly 5 comprises a cooling liquid containing barrel 51, a sealing plug 53 is threadedly connected to the upper end of the cooling liquid containing barrel 51 through a cooling liquid inlet 52, the cold circulation heat dissipation assembly 4 is connected to the left side of the cooling liquid containing barrel 51 through a first circulating pipe 54 and a second circulating pipe 55, and a second circulating pump 56 is arranged in the central part of the second circulating pipe 55, by arranging the cooling liquid circulating assembly 5, the cooling liquid can circulate in the cold circulation heat dissipation assembly 4, heat exchange is realized, and the heat dissipation effect of the cold circulation heat dissipation assembly 4 is increased, the cooling liquid containing barrel 51 is internally provided with a cavity matched with the cooling liquid, and the cooling liquid inlet 52 is provided with a thread connection groove matched with the sealing plug 53, thereby preparing for the filling and use of the cooling liquid.

[0024] Working principle: when it is needed to use, the connecting pipe on the wind turbine gear box 1 is firmly connected through the fixed connection assembly 3 and the cold circulation heat dissipation assembly 4, the sealing plug 53 is opened, the cooling liquid is poured into the cooling liquid containing barrel 51 through the cooling liquid inlet 52, the filling of the cooling liquid is completed, the first circulating pump 2 and the second circulating pump 56 are started, the lubricating oil is extracted through the first circulating pump 2 and circulates in the first heat exchange pipe 43, the cooling liquid in the cooling liquid containing barrel 51 is extracted through the second circulating pump 56 and circulates in the second heat exchange pipe 44, under the heat conduction of the heat dissipation plate 46, heat exchange and heat dissipation are started, and the wind turbine gear box 1 is continuously cooled.

[0025] The standard parts used in the embodiment can be directly purchased from the market, and the non-standard structural parts according to the description and drawings can also be processed without doubt according to the existing technical knowledge, meanwhile, the connection mode of each part adopts the mature conventional means in the existing technology, and the machinery, parts and equipment adopt the conventional models in the existing technology, so the specific description is not made here.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind turbine gearbox oil cooling circulation heat dissipation structure, characterized in that, Include: Through the oil pipeline connection in the right side of wind turbine gear box (1) for lubricating oil extraction first circulating pump (2), the right side of the first circulating pump (2) is installed and connected with cold circulation cooling assembly (4) through fixed connection assembly (3), and the front end of the cold circulation cooling assembly (4) is provided with cooling liquid circulation assembly (5).

2. The wind turbine gearbox oil cooling circulation heat dissipation structure according to claim 1, characterized in that: The wind turbine gear box (1) is provided with two groups of lubricating oil circulation pipelines, the upper end pipeline of the wind turbine gear box (1) is a lubricating oil inlet pipe, and the lower end pipeline of the wind turbine gear box (1) is a lubricating oil outlet pipe.

3. The oil cooling circulation heat dissipation structure for a gear box of a wind power generator according to claim 1, characterized in that: The fixed connection assembly (3) includes an oil cooling circulation pipe (31), the oil cooling circulation pipe (31) is connected through two groups of connecting fixed discs (32) and a cold circulation cooling assembly (4), a fixed sealing gasket (33) is arranged between the two groups of connecting fixed discs (32), the two groups of connecting fixed discs (32) are bolted through six groups of fixed bolts (34), the left connecting fixed disc (32) is provided with a clamping groove matched with the fixed sealing gasket (33), and the connecting fixed disc (32) is provided with a bolt fixing groove matched with the fixed bolt (34).

4. The oil cooling circulation heat dissipation structure for a gear box of a wind power generator according to claim 1, characterized in that: The cold circulation cooling assembly (4) includes a support fixed plate (41), two groups of central connecting pipes (42) are connected between the upper and lower ends of the two groups of support fixed plates (41), a first heat exchange pipe (43) is arranged at the rear end of the two groups of support fixed plates (41), a second heat exchange pipe (44) is arranged at the front end of the two groups of support fixed plates (41), two side fixed bars (45) are connected to the front and rear sides of the two groups of support fixed plates (41), and a plurality of heat dissipation plates (46) are arranged between the central connecting pipes (42) and the two side fixed bars (45).

5. The wind turbine gearbox oil cooling circulation heat dissipation structure according to claim 4, characterized in that: The support fixed plate (41) is provided with flow-through recessed groove holes matched with the first heat exchange pipe (43) and the second heat exchange pipe (44), the two side fixed bars (45) are provided with fixed grooves matched with the plurality of heat dissipation plates (46), and the heat dissipation plate (46) is provided with a hole matched with the central connecting pipe (42), the first heat exchange pipe (43) and the second heat exchange pipe (44).

6. The wind turbine gearbox oil cooling circulation heat dissipation structure according to claim 1, characterized in that: The cooling liquid circulation assembly (5) includes a cooling liquid containing barrel (51), a sealing plug (53) is threadedly connected to the upper end of the cooling liquid containing barrel (51) through a cooling liquid inlet (52), the left side of the cooling liquid containing barrel (51) is connected with the cold circulation cooling assembly (4) through a first circulating pipe (54) and a second circulating pipe (55), and the second circulating pipe (55) is provided with a second circulating pump (56).

7. The wind turbine gearbox oil cooling circulation heat dissipation structure according to claim 6, characterized in that: The cooling liquid containing barrel (51) is internally provided with a cavity matched with the cooling liquid, and the cooling liquid inlet (52) is provided with a threaded connection groove matched with the sealing plug (53).

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