Carbon powder cleaning and collecting structure for collecting ring chamber of wind generating set

Abstract

The utility model discloses a collecting ring chamber carbon powder cleaning and collecting structure of a wind generating set, which relates to the technical field of wind power generation, and comprises a collecting ring chamber main body, one side surface of the collecting ring chamber main body is fixedly connected with a first closing plate through a bolt, and the inner wall of the collecting ring chamber main body is rotatably connected with a rotating shaft; and the first sealing plate is rotationally connected with the rotating shaft, the bottom surface of the collector ring chamber main body communicates with an exhaust cylinder, and a collector ring assembly is installed on the outer surface of the rotating shaft. According to the utility model, the carbon powder in the collector ring chamber of the wind generating set can be smoothly cleaned and discharged, so that the stability and reliability of the overall operation of the collector ring are enhanced, and a foundation is built for the efficient and safe operation of the wind generating set; meanwhile, various fault risks such as electrical short circuit and aggravated part abrasion caused by accumulation of a large amount of carbon powder are effectively reduced, the operation and maintenance cost is greatly reduced, the downtime caused by faults is greatly shortened, and then the economic benefits and the operation benefits of the wind generating set are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field, concretely is a kind of wind generating set current collector ring chamber carbon powder cleaning collection structure. BACKGROUND

[0002] Wind power generation refers to the conversion of the kinetic energy of wind into mechanical energy, and then the conversion of mechanical energy into electric power energy, which is an important form of wind energy utilization. The device required for wind power generation is called wind generating set.

[0003] When the wind generating set is running, the frequency converter provides excitation current to the rotor or the rotor provides electric energy to the frequency converter according to different working modes of the frequency converter. The rotor is rotating, and energy exchange between the rotor and the frequency converter must pass through a medium, which is the current collector ring. The carbon brush transfers electric energy from the rotating copper ring of the current collector ring. Under normal circumstances, the carbon brush is made of graphite material, and carbon powder will inevitably be generated when it rubs against the steel material of the current collector ring.

[0004] The accumulation of carbon powder in the current collector ring chamber can reduce the contact performance of the slip ring and the carbon brush, cause electrical discharge, accelerate the wear and corrosion of the components, and ultimately reduce the power generation efficiency of the wind generating set, thereby increasing the maintenance cost and downtime, and seriously affecting the reliability and economy of the wind generating set. Therefore, we provide a wind generating set current collector ring chamber carbon powder cleaning collection structure to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at making up for the deficiency of prior art, and provides a wind generating set current collector ring chamber carbon powder cleaning collection structure.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a wind generating set current collector ring chamber carbon powder cleaning collection structure, including current collector ring chamber main part, the side surface of current collector ring chamber main part is connected with first closed plate through bolt fixing, the inner wall of current collector ring chamber main part is rotatably connected with the shaft, and first closed plate is rotatably connected with the shaft, the bottom surface of current collector ring chamber main part is connected with exhaust cylinder, the outer surface of the shaft is installed with current collector ring assembly, the inside of current collector ring chamber main part is installed with carbon brush assembly that is matched with current collector ring assembly, the inside of current collector ring chamber main part is provided with high-efficiency assembly for improving the carbon powder cleaning effect of wind generating set current collector ring chamber.

[0007] Further, the high-efficiency assembly comprises a fan frame fixedly connected with the collector ring chamber body and a first impeller fixedly connected with the rotating shaft, and a notch is formed in the bottom of the fan frame opposite to the position of the exhaust duct. When the rotating shaft rotates, the first impeller is driven to rotate, and the rotating airflow is formed in cooperation with the fan frame, so as to suck the carbon powder. At the same time, the carbon powder can be conveniently discharged into the exhaust duct through the notch opposite to the exhaust duct, thereby avoiding the accumulation of carbon powder in the fan frame, and reducing the cleaning of the fan chamber by human.

[0008] Further, the high-efficiency assembly further comprises a fixed frame fixedly connected with the exhaust duct, a first servo motor is installed on the inner wall of the fixed frame, and a second impeller is fixedly connected to the output shaft end of the first servo motor. When the first servo motor is connected to the power supply and started, the second impeller is driven to rotate, thereby generating rotating airflow for sucking the carbon powder, so as to improve the efficiency of the carbon powder entering the exhaust duct and reduce the resistance of the airflow flowing from top to bottom. At the same time, it prevents external airflow from blowing back into the collector ring chamber body.

[0009] Further, the high-efficiency assembly further comprises two second servo motors installed on the inner wall of the collector ring chamber body, a support plate is fixedly connected to the output shaft end of each second servo motor, an electric push rod and a connecting plate are hingedly connected to the bottom surface of each support plate through a pin shaft, the extension end of the electric push rod is hingedly connected to the connecting plate, and a fan is installed on the side surface of each connecting plate away from the electric push rod. Each fan has a connecting pipe connected to the output end. Through the cooperation between the above structures, the carbon powder deposited on the inner bottom wall of the collector ring chamber body can be blown and brushed, so that the carbon powder tends to move to the position close to the exhaust duct and be sucked and cleaned.

[0010] Further, the inner walls of the collector ring chamber body and the first closed plate are respectively inlaid with a first bearing and a second bearing, and the inner rings of the first bearing and the second bearing are fixedly connected with the outer surface of the rotating shaft. By arranging the first bearing and the second bearing, the rotating shaft can rotate more stably and the resistance of the rotating shaft during rotation can be reduced, thereby avoiding the jamming and swinging of the rotating shaft during use.

[0011] Further, a maintenance opening for the equipment inside the collector ring chamber of the wind turbine generator system is formed in the front surface of the collector ring chamber body, and a second closed plate is fixedly connected to the front surface of the collector ring chamber body by bolts, and the maintenance opening corresponds to the position of the second closed plate. By arranging the maintenance opening and the second closed plate, the equipment inside the collector ring chamber of the wind turbine generator system can be conveniently maintained, and the collector ring chamber body and the second closed plate are connected by bolts, so that the maintenance opening is closed.

[0012] Further, the front face of the current collector ring chamber body is provided with a cleaning port for cleaning the carbon powder in the wind turbine generator set current collector ring chamber, and the front face of the current collector ring chamber body is fixedly connected with a third closing plate through bolts, and the cleaning port corresponds to the third closing plate, and the cleaning port is closed by connecting the current collector ring chamber body and the third closing plate through bolts.

[0013] Compared with the prior art, the carbon powder cleaning and collecting structure of the wind turbine generator set current collector ring chamber has the following beneficial effects:

[0014] 1. The carbon powder in the wind turbine generator set current collector ring chamber can be smoothly cleaned and discharged, thereby enhancing the stability and reliability of the overall operation of the current collector ring, laying a solid foundation for efficient and safe operation of the wind turbine generator set, effectively reducing various fault risks such as electrical short circuit and component wear caused by large accumulation of carbon powder, greatly reducing operation and maintenance costs and downtime caused by faults, and further improving the economic and operational benefits of the wind turbine generator set.

[0015] 2. The first bearing and the second bearing are arranged, so that the rotating shaft is more stable during rotation and the resistance of the rotating shaft during rotation is reduced, so that the rotating shaft is not jammed and swings during use. The maintenance opening and the second closing plate are arranged, so that the equipment in the wind turbine generator set current collector ring chamber can be conveniently maintained. The cleaning port and the third closing plate are arranged, so that the residual carbon powder in the wind turbine generator set current collector ring chamber can be conveniently cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a sectional view of the three-dimensional structure of the utility model Figure One ;

[0018] Figure 3 It is a sectional view of the three-dimensional structure of the utility model Figure Two ;

[0019] Figure 4 It is a schematic view of the local structure of the utility model;

[0020] Figure 5 It is a sectional view of the local structure of the utility model;

[0021] Figure 6 It is a schematic view of the local structure of the utility model.

[0022] In the figure: 1, the collector ring chamber main body; 2, the first closing plate; 3, the rotating shaft; 4, the exhaust cylinder; 5, the collector ring assembly; 6, the carbon brush assembly; 701, the fan frame; 702, the first impeller; 703, the fixed frame; 704, the first servo motor; 705, the second impeller; 706, the second servo motor; 707, the support plate; 708, the electric push rod; 709, the connecting plate; 7010, the fan; 7011, the connecting pipe; 8, the first bearing; 9, the second bearing; 10, the access hole; 11, the second closing plate; 12, the cleaning port; 13, the third closing plate. DETAILED DESCRIPTION

[0023] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.

[0024] As described in the background, since the carbon powder is accumulated in the collector ring chamber, the contact performance of the slip ring and the carbon brush is easily reduced, the electrical discharge phenomenon is caused, the wear and corrosion of the components are accelerated, and finally the power generation efficiency of the wind turbine generator system is reduced, thereby increasing the maintenance cost and downtime, seriously affecting the reliability and economy of the wind turbine generator system, and therefore the embodiment provides a carbon powder cleaning and collecting structure for a collector ring chamber of a wind turbine generator system.

[0025] Referring to Figures 1 to 6 The embodiment provides a carbon powder cleaning and collecting structure for a collector ring chamber of a wind turbine generator system, which comprises a collector ring chamber main body 1, a first closing plate 2 is fixedly connected to one side surface of the collector ring chamber main body 1 through bolts, a rotating shaft 3 is rotatably connected to the inner wall of the collector ring chamber main body 1, the first closing plate 2 is rotatably connected to the rotating shaft 3, an exhaust cylinder 4 is communicated with the bottom surface of the collector ring chamber main body 1, a collector ring assembly 5 is installed on the outer surface of the rotating shaft 3, and a carbon brush assembly 6 that is matched with the collector ring assembly 5 is installed in the collector ring chamber main body 1.

[0026] The collector ring chamber main body 1 can be divided into a slip ring chamber and a fan chamber, the exhaust cylinder 4 is arranged in the middle of the slip ring chamber and the fan chamber, a reserved notch is formed in the inner semicircular column structure on one side of the slip ring chamber, the slip ring chamber and the exhaust cylinder 4 are directly communicated, the airflow circulation condition between the slip ring chamber and the exhaust cylinder 4 is effectively improved, the air exchange efficiency is enhanced, the airflow generated due to the discharge of the carbon powder in the slip ring chamber can be more smoothly discharged into the exhaust cylinder 4, the retention and accumulation of the carbon powder in the slip ring chamber are reduced, and the adverse effects of the carbon powder accumulation on the slip ring body, the carbon brush and other components are reduced.

[0027] The collector ring assembly 5 and the carbon brush assembly 6 are both prior art, and the specific structure and working principle are not described here, the rotating shaft 3 is connected with a wind wheel through a speed increaser, and can rotate along the inner wall of the collector ring chamber main body 1 and the first closing plate 2 under the driving action of external wind force, so that the collector ring assembly 5 and the carbon brush assembly 6 rotate relative to each other and transmit electric energy.

[0028] The inner wall of the collector ring chamber body 1 and the first closed plate 2 is respectively inlaid with a first bearing 8 and a second bearing 9, and the inner ring of the first bearing 8 and the second bearing 9 is fixed with the outer surface of the rotating shaft 3. By arranging the first bearing 8 and the second bearing 9, the rotating shaft 3 can be more stable when rotating, and the resistance of the rotating shaft 3 when rotating can be reduced, so as to avoid the jamming and swinging of the rotating shaft 3 during use.

[0029] The inside of the collector ring chamber body 1 is provided with a high-efficiency assembly for improving the carbon powder cleaning effect of the collector ring chamber of the wind turbine generator system. The high-efficiency assembly includes a fan frame 701 fixedly connected with the collector ring chamber body 1, and a first impeller 702 fixedly connected with the rotating shaft 3, and the bottom of the fan frame 701 is provided with a slot opposite to the position of the exhaust cylinder 4.

[0030] After the rotating shaft 3 rotates, the first impeller 702 can be driven to rotate, and the rotating air flow is formed in cooperation with the fan frame 701 to suck the carbon powder. At the same time, the carbon powder can be conveniently discharged into the exhaust cylinder 4 through the slot opposite to the exhaust cylinder 4, so as to avoid the accumulation of carbon powder in the fan frame 701, thereby reducing the cleaning of the fan chamber by human.

[0031] The high-efficiency assembly further includes a fixed frame 703 fixedly connected with the exhaust cylinder 4, a first servo motor 704 mounted on the inner wall of the fixed frame 703, and a second impeller 705 fixedly connected with the output shaft end of the first servo motor 704. When the first servo motor 704 is connected to the power supply and started, the second impeller 705 can be driven to rotate, thereby generating a rotating air flow for sucking the carbon powder, so as to improve the efficiency of the carbon powder entering the exhaust cylinder 4, reduce the resistance of the air flow flowing from top to bottom, and prevent the external air flow from blowing back into the collector ring chamber body 1.

[0032] The high-efficiency assembly further includes two second servo motors 706 mounted on the inner wall of the collector ring chamber body 1, and each output shaft end of the second servo motor 706 is fixedly connected with a support plate 707. The bottom surface of each support plate 707 is hingedly connected with an electric push rod 708 and a connecting plate 709 through a pin shaft, and the telescopic end of the electric push rod 708 is hingedly connected with the connecting plate 709. Each connecting plate 709 is provided with a fan 7010 on the side surface away from the electric push rod 708, and each fan 7010 is connected with a connecting pipe 7011.

[0033] The second servo motor 706 is powered on and started, the fan 7010 and the connecting pipe 7011 on the connecting plate 709 can be driven to rotate forward and backward by the support plate 707, the fan 7010 is powered on and started, wind power flow can be generated and sprayed from the connecting pipe 7011, so that the carbon powder deposited on the inner bottom wall of the collector ring chamber main body 1 is blown and brushed, so that the carbon powder tends to move to the position close to the exhaust cylinder 4 and is sucked and cleaned, and the electric push rod 708 is powered on and started, the telescopic end is telescopic, the connecting plate 709 can be driven to rotate with the hinge between the connecting plate 709 and the support plate 707 as the center, so that the blowing angle of the connecting pipe 7011 is adjusted, and the blowing range of the carbon powder is improved.

[0034] The front surface of the collector ring chamber main body 1 is provided with an access hole 10 for overhauling the equipment in the collector ring chamber of the wind turbine generator system, and the front surface of the collector ring chamber main body 1 is fixedly connected with a second closing plate 11 through bolts, and the access hole 10 corresponds to the position of the second closing plate 11, the access hole 10 and the second closing plate 11 are arranged, the equipment in the collector ring chamber of the wind turbine generator system can be conveniently overhauled, and the collector ring chamber main body 1 and the second closing plate 11 are connected through bolts, so that the access hole 10 is closed.

[0035] The front surface of the collector ring chamber main body 1 is provided with a cleaning hole 12 for cleaning the carbon powder in the collector ring chamber of the wind turbine generator system, and the front surface of the collector ring chamber main body 1 is fixedly connected with a third closing plate 13 through bolts, and the cleaning hole 12 corresponds to the position of the third closing plate 13, the cleaning hole 12 and the third closing plate 13 are arranged, the residual carbon powder in the collector ring chamber of the wind turbine generator system can be conveniently cleaned, and the collector ring chamber main body 1 and the third closing plate 13 are connected through bolts, so that the cleaning hole 12 is closed.

[0036] The components in the drawings of the utility model are only used as style reference, and specific size standards are not given, and the specific size is determined according to the actual production requirement, and meanwhile, the material quality of each component can be replaced according to actual needs.

[0037] The electric elements in the utility model are all conventional equipment known to the person skilled in the art and can be selected or customized according to actual needs, and the setting mode, installation mode and electrical connection mode can be debugged according to the requirements of the instruction manual, and details are not repeated here.

[0038] Working principle: when the carbon powder cleaning and collecting structure of the wind turbine generator set is used, the rotating shaft 3 is connected with the wind wheel through the speed increaser, and can rotate along the inner wall of the collector ring chamber main body 1 and the first closed plate 2 under the driving action of external wind force, so that the collector ring assembly 5 and the carbon brush assembly 6 rotate and transmit electric energy, and the carbon powder is generated during the rotation of the collector ring assembly 5 and the carbon brush assembly 6. After the rotating shaft 3 rotates, the first impeller 702 can be driven to rotate, and the rotating airflow is formed by cooperating with the fan frame 701, so as to suck the carbon powder. At the same time, the carbon powder can be conveniently discharged into the exhaust cylinder 4 through the slot opposite to the exhaust cylinder 4, so as to avoid the accumulation of carbon powder in the fan frame 701, thereby reducing the manual cleaning of the fan chamber. The exhaust cylinder 4 is half in the slip ring chamber and half in the fan chamber. A reserved slot is formed in the inner half cylinder structure on one side of the slip ring chamber, so that the slip ring chamber and the exhaust cylinder 4 are directly connected, the airflow circulation between the slip ring chamber and the exhaust cylinder 4 is effectively improved, the air exchange efficiency is enhanced, the airflow generated by the discharge of carbon powder in the slip ring chamber can be more smoothly discharged into the exhaust cylinder 4, the residence and accumulation of carbon powder in the slip ring chamber are reduced, and the adverse effects of carbon powder accumulation on the slip ring body, carbon brush and other components are reduced.

[0039] After the second servo motor 706 is connected to the power supply and started, the fan 7010 and the connecting pipe 7011 on the connecting plate 709 can be driven to rotate forward and reverse by the supporting plate 707. The fan 7010 is connected to the power supply and started, which can generate wind flow and spray from the connecting pipe 7011, so as to blow the carbon powder deposited on the inner bottom wall of the collector ring chamber main body 1, so that the carbon powder tends to move to the position close to the exhaust cylinder 4 and be sucked and cleaned. The electric push rod 708 is connected to the power supply and started, and the extension end is extended and retracted, which can drive the connecting plate 709 to rotate around the hinge between the connecting plate 709 and the supporting plate 707, so as to adjust the blowing angle of the connecting pipe 7011, thereby improving the blowing range of the carbon powder. At the same time, the first servo motor 704 is connected to the power supply and started, which can drive the second impeller 705 to rotate, so as to generate rotating airflow for sucking carbon powder, thereby improving the efficiency of carbon powder entering the exhaust cylinder 4 and reducing the resistance of airflow flowing from top to bottom. At the same time, the external airflow is prevented from blowing into the collector ring chamber main body 1 in reverse, so that the carbon powder in the wind turbine generator set collector ring chamber is smoothly cleaned and discharged, and the stability and reliability of the overall operation of the collector ring are enhanced. At the same time, it lays a solid foundation for the efficient and safe operation of the wind turbine generator set, effectively reduces various fault risks such as electrical short circuit and component wear caused by large accumulation of carbon powder, greatly reduces the operation and maintenance cost and downtime caused by faults, and further improves the economic benefit and operation benefit of the wind turbine generator set.

Claims

1. A carbon powder cleaning and collecting structure for a wind turbine generator set slip ring chamber, comprising a slip ring chamber main body (1), characterized in that: One side of the collector ring chamber body (1) is fixedly connected with a first closing plate (2) through bolts, the inner wall of the collector ring chamber body (1) is rotatably connected with a rotating shaft (3), and the first closing plate (2) is rotatably connected with the rotating shaft (3), the bottom surface of the collector ring chamber body (1) is communicated with an exhaust cylinder (4), the outer surface of the rotating shaft (3) is provided with a collector ring assembly (5), the inside of the collector ring chamber body (1) is provided with a carbon brush assembly (6) matched with the collector ring assembly (5), and the inside of the collector ring chamber body (1) is provided with a high-efficiency assembly for improving the carbon powder cleaning effect of the collector ring chamber of the wind turbine generator system.

2. A carbon powder cleaning and collecting structure for a collector ring chamber of a wind turbine generator system according to claim 1, characterized in that: The high-efficiency assembly comprises a fan frame (701) fixedly connected with the collector ring chamber body (1), and a first impeller (702) fixedly connected with the rotating shaft (3), and the bottom of the fan frame (701) is provided with a notch opposite to the position of the exhaust cylinder (4).

3. A carbon powder cleaning and collecting structure for a collector ring chamber of a wind turbine generator system according to claim 1, characterized in that: The high-efficiency assembly further comprises a fixed frame (703) fixedly connected with the exhaust cylinder (4), and the inner wall of the fixed frame (703) is provided with a first servo motor (704), and the output shaft end of the first servo motor (704) is fixedly connected with a second impeller (705).

4. A carbon powder cleaning and collecting structure for a collector ring chamber of a wind turbine generator system according to claim 1, characterized in that: The high-efficiency assembly further comprises two second servo motors (706) mounted on the inner wall of the collector ring chamber body (1), the output shaft end of each second servo motor (706) is fixedly connected with a support plate (707), the bottom surface of each support plate (707) is hingedly connected with an electric push rod (708) and a connecting plate (709) through a pin shaft, the telescopic end of the electric push rod (708) is hingedly connected with the connecting plate (709), and the side of each connecting plate (709) away from the electric push rod (708) is provided with a fan (7010), and the output end of each fan (7010) is communicated with a connecting pipe (7011).

5. A carbon dust cleaning and collecting structure for a collector ring chamber of a wind turbine generator system according to claim 1, characterized in that: The inner walls of the collector ring chamber body (1) and the first closing plate (2) are respectively inlaid with a first bearing (8) and a second bearing (9), and the inner rings of the first bearing (8) and the second bearing (9) are fixedly connected with the outer surface of the rotating shaft (3).

6. A carbon dust cleaning and collecting structure for a collector ring chamber of a wind turbine generator system according to claim 1, characterized in that: The front surface of the collector ring chamber body (1) is provided with an access hole (10) for overhauling the equipment in the collector ring chamber of the wind turbine generator system, and the front surface of the collector ring chamber body (1) is fixedly connected with a second closing plate (11) through bolts, and the access hole (10) corresponds in position to the second closing plate (11).

7. A carbon dust cleaning and collecting structure for a collector ring chamber of a wind turbine generator system according to claim 1, characterized in that: The front surface of the collector ring chamber body (1) is provided with a cleaning port (12) for cleaning the carbon powder in the collector ring chamber of the wind turbine generator system, and the front surface of the collector ring chamber body (1) is fixedly connected with a third closing plate (13) through bolts, and the cleaning port (12) corresponds in position to the third closing plate (13).

Images