CN118775189A - Carbon powder removal system and wind turbine generator set - Google Patents

Abstract

The present invention provides a carbon powder removal system and a wind turbine generator set, which relate to the field of power generation technology. The carbon powder removal system includes an injection device and a carbon absorption device. The injection device includes a support member, an air supply member and a plurality of injection components, and the support member is used to be connected to the collector ring chamber. The injection component includes an injection member, which is arranged on the support member, one end of the injection member is connected to the air supply member, and the other end of at least part of the injection member is used to extend to the gap area between the collector ring assembly and the carbon brush assembly in the collector ring chamber, and is used to blow away the carbon powder in the area. The carbon absorption device includes a carbon storage chamber and a suction member, and the carbon storage chamber is used to communicate with the lower part of the collector ring chamber, and the suction member is connected to the carbon storage chamber, and is used to suck the carbon powder in the collector ring chamber into the carbon storage chamber. The carbon powder removal system of the present invention can remove stubborn carbon stains in hidden positions in the collector ring chamber, and the carbon removal effect is ideal, thereby ensuring the normal operation of the wind turbine generator set.

Description

Carbon powder removal system and wind turbine generator set

Technical Field

The invention relates to the technical field of power generation, and in particular to a carbon powder removal system and a wind turbine generator set.

Background Art

Collector rings are also called conductive rings, slip rings, collector rings, and confluence rings. They can be used in electromechanical systems that require continuous rotation while transmitting power or signals between fixed positions and rotating positions. They can improve system performance, simplify system structure, and avoid twisting of wires during rotation. For example, the rotor of a wind turbine is connected to the power system through a collector ring. Specifically, the fixed carbon brush is in close contact with the collector ring to achieve power transmission from the rotating position to the fixed position, and then transmit it to the power system.

As a high-speed sliding contact component, the collector ring of the wind turbine will inevitably wear out during operation. Carbon brushes will produce carbon powder after wear. In addition, the collector ring and encoder will produce a large amount of oil mist during operation. The oil mist has a greater adsorption effect on carbon powder. As the carbon powder continues to increase, oily carbon powder dirt is easily generated and adheres to the collector ring and the surrounding of the carbon brush, affecting the insulation performance between adjacent collector rings. In severe cases, it will cause carbon powder short circuit, affecting the safe operation of the generator. In the related technology, a jet pipe is set in the collector ring chamber to blow away the carbon powder around the collector ring and the carbon brush.

However, the above method can usually remove the carbon powder on the surface of the collector ring well, but the removal effect on the stubborn carbon stains in hidden positions is poor, and the carbon removal effect is not ideal.

Summary of the invention

Based on this, the present invention provides a carbon powder removal system and a wind turbine generator set, which solve the technical problem that the removal effect of stubborn carbon stains in hidden positions in the collector ring chamber of the existing wind turbine generator set is poor.

In a first aspect, the present invention provides a carbon powder removal system for cleaning an area between a collector ring assembly and a carbon brush assembly in a collector ring chamber, the carbon powder removal system comprising an air jet device and a carbon suction device;

The jet device comprises a support, an air supply and a plurality of jet assemblies, wherein the support is used to be connected with the collector ring chamber;

The jet assembly includes a jet component, which is arranged on the support component, one end of which is connected to the air supply component, and the other end of at least part of the jet component is used to extend to the gap area between the collector ring assembly and the carbon brush assembly in the collector ring chamber;

The plurality of air jet components are configured to blow away carbon powder from the area between the collector ring assembly and the carbon brush assembly when the air supply component supplies air to the air jet components;

The carbon absorption device comprises a carbon storage chamber and a suction piece. The carbon storage chamber is used to communicate with the lower part of the collector ring chamber. The suction piece is connected to the carbon storage chamber and is used to absorb the carbon powder in the collector ring chamber into the carbon storage chamber.

In a possible implementation, the jet assembly further includes a mounting member, the mounting member is connected to the support member, and the jet member is correspondingly connected to the mounting member;

The jet component has at least one oblique jet opening on one side facing the collector ring assembly or the carbon brush assembly, and the oblique jet opening is arranged in an extending direction away from the jet component;

The jet device also includes a driving mechanism, and the mounting member is connected to the driving mechanism; the oblique jet is configured so that when the driving mechanism drives the mounting member to rotate around the extending direction of the jet member, the oblique jet sprays toward the peripheral side of the jet member.

In a possible implementation, the driving mechanism includes a driving member and a plurality of transmission members transmission-connected to the driving member;

The transmission member is correspondingly connected to the mounting member and is used to drive the mounting member to rotate.

In a possible implementation, the jet assembly further includes a limiting member, and the jet assembly moves relative to the mounting member toward a direction approaching or away from one of the collector ring assembly and the carbon brush assembly;

The limiting parts are correspondingly connected between the plurality of jetting parts and the mounting parts, and are used for limiting or releasing the limiting.

In a possible implementation, the jet assembly further includes a rotary joint, which is used to be connected to a side of the jet component that is away from the collector ring chamber;

The jetting device also includes an air collecting pipe, and the rotary joint is connected with the air supply member through the air collecting pipe.

In a possible implementation, the jetting device further includes a control valve, and the air collecting pipe is connected to the air supply member via the control valve;

The control valve is configured to be intermittently opened or closed when the air supply member supplies air to the air injection member.

In a possible implementation, the carbon absorption device further includes at least one filter element, which is disposed in the carbon storage chamber and is used to filter the carbon powder-containing airflow passing through the carbon storage chamber.

In a possible implementation, the carbon absorption device further includes a one-way vent valve, which is disposed on a pipeline connecting the carbon storage chamber and the collector ring chamber to allow air flow to pass from the collector ring chamber to the carbon storage chamber in one direction.

In a possible implementation, the suction member is a powerful exhaust fan, and the powerful exhaust fan is arranged on the carbon storage chamber.

In a second aspect, the present invention further provides a wind turbine generator set, comprising a collector ring chamber, a collector ring assembly, a carbon brush assembly and any one of the carbon powder removal systems provided in the first aspect, wherein the collector ring assembly and the carbon brush assembly are arranged in the collector ring chamber;

The carbon brush assembly abuts against a portion of the collector ring assembly, and the carbon powder removal system is connected to the collector ring chamber.

The present invention provides a carbon powder removal system and a wind turbine generator set, which are used to clean the area between the collector ring assembly and the carbon brush assembly in the collector ring chamber, and the carbon powder removal system includes an air jet device and a carbon suction device. The air jet device includes a support, an air supply member and a plurality of air jet assemblies, which are connected to the collector ring chamber by setting the support member to provide installation support. The air jet assembly includes an air jet member, which is arranged on the support member, one end of the air jet member is connected to the air supply member, and the other end of at least part of the air jet member extends to the gap area between the collector ring assembly and the carbon brush assembly in the collector ring chamber. When the air supply member supplies air to the air jet member, the air jet member blows away the carbon powder in the area between the collector ring assembly and the carbon brush assembly, thereby strongly cleaning the stubborn carbon stains in the hidden position between the collector ring assembly and the carbon brush assembly. The carbon suction device includes a carbon storage chamber and a suction member, which is connected to the lower part of the collector ring chamber by setting the carbon storage chamber, and the suction member is connected to the carbon storage chamber to suck the carbon powder in the collector ring chamber into the carbon storage chamber. Therefore, the carbon powder removal system provided by the present invention can remove stubborn carbon stains in hidden positions in the collector ring chamber, and the carbon removal effect is ideal, thereby ensuring the normal operation of the wind turbine set.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

FIG1 is a partial structural schematic diagram of a toner removal system provided in an embodiment of the present invention;

FIG2 is a partial enlarged view of point A in FIG1;

Fig. 3 is a cross-sectional view along the B-B section in Fig. 2;

FIG. 4 is a partial structural schematic diagram of the toner removal system provided by an embodiment of the present invention in another state.

Reference numerals:

10: Collector ring chamber;

20: Collector ring assembly;

30: Carbon brush assembly;

100: jet device;

110: support member;

120: air supply parts;

130: jet assembly;

131: jet parts;

1311: oblique nozzle;

1312: direct nozzle;

132: Mounting parts;

133: limiter;

134: Rotary joint;

140: driving mechanism;

141: driving member;

142: Transmission parts;

150: gas collecting pipe;

160: control valve;

200: Carbon absorption device;

210: Carbon storage chamber;

220: suction piece;

230: filter element;

240: One-way ventilation valve.

DETAILED DESCRIPTION

Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of methods and devices consistent with some aspects of the present invention as detailed in the appended claims.

The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

As mentioned in the background technology section, the collector ring chamber usually has a hollow shell structure, the collector ring assembly is rotatably installed in the collector ring chamber, and the carbon brush assembly is in sliding contact with a portion of the arc surface on the collector ring assembly to transfer electrical energy. Usually, a fixed air duct is set in the collector ring chamber to blow away the carbon powder generated by the wear between the carbon brush assembly and the collector ring assembly. Since the oil mist has a strong adsorption effect on the carbon powder, and there are many hidden areas on the carbon brush assembly and the collector ring assembly, it is usually difficult for the air duct to thoroughly clean the carbon powder adsorbed in these areas due to the interference of the carbon brush assembly.

In view of the above problems existing in the prior art, the present invention provides a carbon powder removal system and a wind turbine generator set. The carbon powder removal system provided by the present invention includes an air jet device and a carbon suction device. The air jet device includes a support member, an air supply member and a plurality of air jet components, which are connected to the collector ring chamber by setting the support member to provide installation support. The air jet component includes an air jet component, which is arranged on the support member, one end of the air jet component is connected to the air supply member, and the other end of at least part of the air jet component extends to the gap area between the collector ring assembly and the carbon brush assembly in the collector ring chamber. When the air supply member supplies air to the air jet component, the air jet component blows away the carbon powder in the area between the collector ring assembly and the carbon brush assembly, thereby strongly cleaning the stubborn carbon stains in the hidden position between the collector ring assembly and the carbon brush assembly. The carbon suction device includes a carbon storage chamber and a suction member, which is connected to the lower part of the collector ring chamber by setting the carbon storage chamber to be connected, and the suction member is connected to the carbon storage chamber to suck the carbon powder in the collector ring chamber into the carbon storage chamber, so that the carbon removal effect is ideal, thereby ensuring the normal operation of the wind turbine generator set.

The technical solution of the present invention is described in detail with specific embodiments in conjunction with the accompanying drawings. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

1 to 4 , the carbon powder removal system provided in this embodiment is used to clean the area between the slip ring assembly 20 and the carbon brush assembly 30 in the slip ring chamber 10 . The carbon powder removal system includes an air injection device 100 and a carbon absorption device 200 .

The jet device 100 includes a support member 110, an air supply member 120, and a plurality of jet assemblies 130. The support member 110 is used to be connected to the collector ring chamber 10. The jet assembly 130 includes a jet member 131, which is arranged on the support member 110, one end of the jet member 131 is connected to the air supply member 120, and the other end of at least part of the jet member 131 is used to extend to the gap area between the collector ring assembly 20 and the carbon brush assembly 30 in the collector ring chamber 10. The jet member 131 is configured to blow away the carbon powder in the area between the collector ring assembly 20 and the carbon brush assembly 30 when the air supply member 120 supplies air to the jet member 131.

The carbon absorption device 200 includes a carbon storage chamber 210 and a suction piece 220 . The carbon storage chamber 210 is used to communicate with the lower part of the collector ring chamber 10 . The suction piece 220 is connected to the carbon storage chamber 210 and is used to absorb the carbon powder in the collector ring chamber 10 into the carbon storage chamber 210 .

In this embodiment, the support member 110 is used to provide installation support for the multiple jet assemblies 130, which can be a plate-shaped, shell-shaped structure, etc. The support member 110 can be connected to the collector ring chamber 10 by welding, screwing, etc. The air supply member 120 is used to provide pressurized air, which can be an air supply component such as an air pump.

The jet component 131 is used to spray air into the gap area between the collector ring assembly 20 and the carbon brush assembly 30, and can be an air jet pipe, an air jet nozzle, etc., which can be easily inserted into the gap area between the collector ring assembly 20 and the carbon brush assembly 30. The jet component 131 can be directly or indirectly connected to the support member 110, and can be fixed by plugging, screwing, clamping, etc.

One end of multiple jet components 131 can be connected to the air supply component 120 through a pipeline, so that the air supply component 120 can deliver pressurized air to each jet component 131, and the other end of at least some of the jet components 131 can be inserted into the gap area between the collector ring assembly 20 and the carbon brush assembly 30, that is, the jet components 131 are arranged at intervals so that the jet end of the jet component 131 is placed in the gap area as much as possible.

In this way, when the air supply member 120 supplies air to the plurality of jet members 131 , the plurality of jet members 131 blow away the carbon powder in the area between the slip ring assembly 20 and the carbon brush assembly 30 , thereby powerfully cleaning the stubborn carbon stains in the hidden position between the slip ring assembly 20 and the carbon brush assembly 30 .

Compared with blowing and cleaning only from the external area where the collector ring assembly 20 and the carbon brush assembly 30 are in contact, the carbon powder removal system provided in this embodiment can clean the stubborn carbon stains in the hidden position between the collector ring assembly 20 and the carbon brush assembly 30, and the carbon removal effect is more thorough and ideal.

It should be noted that the jet component 131 is only used to blow air to remove carbon from the gap area between the collector ring assembly 20 and the carbon brush assembly 30, and cannot affect the normal conductive work of the collector ring assembly 20 and the carbon brush assembly 30. Therefore, the jet component 131 can be made of insulating material.

In addition, the carbon storage chamber 210 is used to collect carbon powder, and it can also be a shell structure with a cavity. The carbon storage chamber 210 can be directly connected to the lower part of the collector ring chamber 10, or it can be connected to the lower part of the collector ring chamber 10 through a pipeline. The suction member 220 is used to provide negative pressure to the carbon storage chamber 210, and it can be a negative pressure pump, a negative pressure fan, etc. The suction member 220 is arranged on the carbon storage chamber 210, so as to suck the carbon powder-containing airflow blown away by the jet device 100 from the collector ring chamber 10 to the carbon storage chamber 210 for collection and storage.

It should be noted that the specific shapes of the collector ring chamber 10 and the carbon storage chamber 210 can be determined according to actual conditions as long as they can meet the installation requirements.

It can be understood that the carbon powder removal system provided by the present invention includes an air jet device 100 and a carbon absorption device 200. The air jet device 100 includes a support member 110, an air supply member 120 and a plurality of air jet assemblies 130, and is connected to the collector ring chamber 10 by setting the support member 110 to provide installation support. The air jet assembly 130 includes an air jet member 131, which is arranged on the support member 110, one end of the air jet member 131 is connected to the air supply member 120, and the other end of at least part of the air jet member 131 extends to the gap area between the collector ring assembly 20 and the carbon brush assembly 30 in the collector ring chamber 10. When the air supply member 120 supplies air to the air jet member 131, the air jet member 131 blows away the carbon powder in the area between the collector ring assembly 20 and the carbon brush assembly 30, thereby strongly cleaning the stubborn carbon stains in the hidden position between the collector ring assembly 20 and the carbon brush assembly 30. Among them, the carbon absorption device 200 includes a carbon storage chamber 210 and a suction piece 220. The carbon storage chamber 210 is connected to the lower part of the collector ring chamber 10 by setting the suction piece 220 to be connected to the carbon storage chamber 210, so as to suck the carbon powder in the collector ring chamber 10 into the carbon storage chamber 210. The carbon removal effect is ideal, thereby ensuring the normal operation of the wind turbine.

In a possible design, the jet assembly 130 further includes a mounting member 132, the mounting member 132 is connected to the support member 110, and the jet member 131 is correspondingly connected to the mounting member 132. The jet member 131 has at least one oblique nozzle 1311 on one side facing the collector ring assembly 20 or the carbon brush assembly 30, and the oblique nozzle 1311 is arranged in an extending direction away from the jet member 131.

The jet device 100 further includes a driving mechanism 140, and the mounting member 132 is connected to the driving mechanism 140. The oblique jet 1311 is configured to jet toward the peripheral side of the jet member 131 when the driving mechanism 140 drives the mounting member 132 to rotate around the extending direction of the jet member 131.

Specifically, on the one hand, the mounting member 132 is used to mount the jet member 131, and on the other hand, the mounting member 132 drives the jet member 131 to rotate relative to the support member 110. Exemplarily, as shown in FIG1 , the mounting member 132 may be a mounting sleeve, the support member 110 is a support shell, and the mounting sleeve may be rotatably mounted on the support shell through a bearing assembly. The jet member 131 is a jet pipe, and the jet pipes may be inserted into the mounting sleeve one by one along the radial direction of the collector ring assembly 20, so that each jet pipe can rotate around the radial axis of the collector ring assembly 20.

As shown in FIG. 2 , the extending direction of the inclined nozzle 1311 on the jet pipe can be arranged along a certain acute angle with the extending direction of the jet pipe, such as 30°, 45°, 60°, etc. Exemplarily, there are multiple inclined nozzles 1311, and the multiple inclined nozzles 1311 are evenly distributed around the jet pipe. Of course, they can also be arranged along the radial direction of the jet pipe, and the opening direction of the inclined nozzle 1311 can be determined according to actual needs, as long as it can meet the requirements of jetting toward the circumference of the jet pipe.

The driving mechanism 140 is used to drive the installation sleeve to rotate. It can be a transmission mechanism composed of a motor and gears, or other mechanisms that can drive the installation sleeve to rotate. It can at least drive the installation sleeve to rotate within a certain angle range so that the airflow ejected from the inclined nozzle 1311 can cover a larger fan-shaped range.

When the driving mechanism 140 drives the mounting member 132 to rotate around the extending direction of the air jet member 131, the oblique jet port 1311 jets toward the peripheral side of the air jet member 131. In this way, the oblique jet port 1311 can blow away the carbon stains in the hidden corners between the collector ring assembly 20 and the carbon brush assembly 30 as much as possible, so as to avoid the situation where the carbon brush assembly 30 blocks the single straight jet port 1312 and does not blow away all the carbon stains, and the carbon removal is more thorough.

Of course, the side of the jet component 131 facing the collector ring assembly 20 or the carbon brush assembly 30 may also retain the straight nozzle 1312 opened in its extension direction. The straight nozzle 1312 is opened on its axis along the extension direction of the jet component 131. This embodiment does not impose too many restrictions on this.

Further, in this embodiment, the driving mechanism 140 includes a driving member 141 and a plurality of transmission members 142 that are transmission-connected to the driving member 141. The transmission members 142 are correspondingly connected to the mounting members 132 and are used to drive the mounting members 132 to rotate.

Specifically, as shown in FIG. 2 and FIG. 3, the driving mechanism 140 can be composed of a motor and a plurality of transmission wheels, wherein the transmission wheels are coaxially mounted on the mounting sleeve, and two adjacent transmission wheels are connected in transmission. The motor is fixedly mounted on the support member 110, and the output end of the motor is connected in transmission with one of the transmission wheels. In this way, the mounting member 132 can drive the jet member 131 to rotate.

It should be noted that if two adjacent mounting sleeves are arranged in parallel, the transmission wheel can be a gear, and the adjacent gears are driven by meshing. If there is a certain angle between two adjacent mounting sleeves, the transmission wheel can be a rubber wheel, and the adjacent rubber wheels are driven by contact friction. This is not specifically limited in this embodiment.

In some embodiments, the jet assembly 130 further includes a limiting member 133, and the jet assembly 131 moves relative to the mounting member 132 toward or away from one of the collector ring assembly 20 and the carbon brush assembly 30. The limiting member 133 is correspondingly connected between the jet assembly 131 and the mounting member 132, and is used for limiting or releasing the limiting.

Specifically, in combination with Figures 1, 2, and 4, the jet tube is inserted into the mounting sleeve along the radial direction of the collector ring assembly 20, and the jet tube can move relative to the mounting sleeve toward or away from the collector ring assembly 20 and the carbon brush assembly 30, so as to adjust the insertion depth of each jet component 131 according to the position of each gap on the carbon brush assembly 30, while inserting the gap as much as possible to avoid interference caused by each jet component 131 and affecting the normal operation of the collector ring assembly 20 and the carbon brush assembly 30, so as to facilitate installation and adjustment and be more flexible in use.

The limiting member 133 is used to lock or unlock the jet tube on the mounting sleeve. For example, as shown in FIG2 , the limiting member 133 is a limiting screw, which is connected to the mounting sleeve. When the limiting screw is tightened, the limiting screw is pressed against the outer wall of the jet tube to achieve limiting locking. When the limiting screw is loosened, the limiting screw is separated from the outer wall of the jet tube to achieve releasing the limiting.

Of course, the limiting member 133 may also be connected to the mounting sleeve, which is not shown in the figure. The limiting member 133 may also be replaced by other limiting components that can facilitate locking or unlocking the jet pipe on the mounting sleeve. This is not specifically limited in this embodiment.

In some embodiments, the jet assembly 130 may further include a rotary joint 134, which is used to be connected to the side of the jet component 131 away from the collector ring chamber 10. The jet device 100 also includes an air collecting pipe 150, through which the rotary joint 134 is connected to the air supply component 120.

Specifically, as shown in Figure 1, the rotary joint 134 is used to realize the transfer of pipelines. The rotary joint 134 corresponds to the jet component 131 one by one. One port of the rotary joint 134 is connected to the jet component 131, and the other port of the rotary joint 134 can be connected to the air collecting pipe 150 through a pipeline. When each jet component 131 rotates, under the action of the rotary joint 134, it is avoided that the jet components 131 cannot be connected to the fixed air collecting pipe 150 due to the rotation of the jet component 131.

The air collecting pipe 150 is used to distribute the airflow output by the air supply part 120 to each air injection part 131, and it may have an air inlet and multiple air outlets, and the air outlets are connected to the rotary joint 134. The specific models of the rotary joint 134 and the air collecting pipe 150 can be determined according to actual needs, and this is not specifically limited in this embodiment.

Furthermore, in this embodiment, the gas injection device 100 further includes a control valve 160, and the gas collecting pipe 150 is connected to the gas supply member 120 via the control valve 160. The control valve 160 is configured to be intermittently turned on or off when the gas supply member 120 supplies gas to the gas injection member 131.

Specifically, as shown in FIG. 1 and FIG. 2 , the control valve 160 is used to control the intermittent jetting of the jet component 131, which can be an electrically controlled valve that is intermittently turned on or off. With such a configuration, on the one hand, intermittent instantaneous jets can be ejected through the jet component 131, resulting in intermittent instantaneous impacts, which is more conducive to flushing away stubborn carbon stains. On the other hand, the pressurized air of the air supply component 120 can be saved and the pressurized air can be used reasonably. The specific model and specifications of the control valve 160 can be determined according to actual needs, and this embodiment does not impose too many restrictions on this.

In order to collect carbon powder more effectively, in this embodiment, the carbon absorption device 200 further includes at least one filter element 230 . The filter element 230 is disposed in the carbon storage chamber 210 and is used to filter the carbon powder-containing airflow passing through the carbon storage chamber 210 .

Specifically, as shown in Figure 1, the filter element 230 can be a plate filter, which can be installed on the inner wall of the carbon storage chamber 210 by screwing, clamping, etc. The plate filter is located between the collector ring chamber 10 and the suction element 220, and multiple plate filters can be arranged in sequence.

In this way, when the carbon-containing gas flow passes through the filter element 230, the carbon powder can be retained on the plate filter. The shape of the plate filter can be determined according to the shape of the inner cavity of the carbon storage chamber 210. In addition, a door can be opened and closed on one side of the carbon storage chamber 210 to facilitate maintenance personnel to open the door to replace the plate filter.

Of course, the filter element 230 may also be replaced by other components capable of filtering carbon powder, and this is not too much limited in this embodiment.

Furthermore, in this embodiment, the carbon absorption device 200 also includes a one-way vent valve 240, which is arranged on a pipeline connecting the carbon storage chamber 210 and the collector ring chamber 10 to allow air flow to pass from the collector ring chamber 10 to the carbon storage chamber 210 in one direction.

Specifically, as shown in Figure 1, the one-way vent valve 240 is used to prevent the carbon-containing air flow in the carbon storage chamber 210 from flowing back to the collector ring chamber 10. When the jet component 131 jets or the suction component 220 sucks, the one-way vent valve 240 opens to allow the air flow to pass from the collector ring chamber 10 to the carbon storage chamber 210.

When the jetting member 131 or the suction member 220 is not working, the one-way vent valve 240 is closed to prevent the carbon-containing gas flow in the carbon storage chamber 210 from flowing back. The specific type and specification of the one-way vent valve 240 can be determined according to actual needs and are not specifically limited in this embodiment.

Furthermore, in this embodiment, the suction member 220 is a powerful exhaust fan, and the powerful exhaust fan is arranged on the carbon storage chamber 210. In this way, the mixed airflow in the collector ring chamber 10 is extracted through the carbon storage chamber 210 by the powerful exhaust fan.

Specifically, as shown in FIG1 , a powerful exhaust fan can be arranged at the bottom of the carbon storage chamber 210 and placed outside the nacelle of the wind turbine generator set. The powerful exhaust fan can pump the airflow in the carbon storage chamber 210 downward to the outside of the carbon storage chamber 210, thereby forming a negative pressure to suck the collector ring chamber 10. The specific size and installation position of the powerful exhaust fan can be determined according to actual needs, and this embodiment does not limit this.

The embodiment of the present invention further provides a wind turbine generator set, comprising a collector ring chamber 10, a collector ring assembly 20, a carbon brush assembly 30 and a carbon powder removal system provided in any of the above embodiments, wherein the collector ring assembly 20 and the carbon brush assembly 30 are arranged in the collector ring chamber 10. The carbon brush assembly 30 abuts against a portion of the collector ring assembly 20, and the carbon powder removal system is connected to the collector ring chamber 10.

The carbon powder removal system is described in detail in the above embodiments and will not be described in detail here.

It is understandable that the support member 110 can be connected to the collector ring chamber 10 by means of screw connection, screw connection, etc., so that the jet end of each jet member 131 can be inserted into the gap area between the collector ring assembly 20 and the carbon brush assembly 30. The carbon storage chamber 210 can also be connected to the collector ring chamber 10 by means of screw connection, screw connection, etc., so that the carbon storage chamber 210 can be connected to the lower part of the collector ring chamber 10. The specific connection method between the support member 110 and the carbon storage chamber 210 and the collector ring chamber 10 can be determined according to actual needs, and is not specifically limited in this embodiment.

The wind turbine set provided by the embodiment of the present invention is provided with a carbon powder removal system, which includes an air jet device 100 and a carbon absorption device 200. The air jet device 100 includes a support member 110, an air supply member 120 and a plurality of air jet assemblies 130, and is connected to the collector ring chamber 10 by providing the support member 110 to provide installation support. The air jet assembly 130 includes an air jet 131, which is provided on the support member 110, one end of the air jet 131 is connected to the air supply member 120, and the other end of at least part of the air jet 131 extends to the gap area between the collector ring assembly 20 and the carbon brush assembly 30 in the collector ring chamber 10. When the air supply member 120 supplies air to the air jet 131, the air jet 131 blows away the carbon powder in the area between the collector ring assembly 20 and the carbon brush assembly 30, thereby strongly cleaning the stubborn carbon stains in the hidden position between the collector ring assembly 20 and the carbon brush assembly 30. Among them, the carbon absorption device 200 includes a carbon storage chamber 210 and a suction piece 220. The carbon storage chamber 210 is connected to the lower part of the collector ring chamber 10 by setting the suction piece 220 to be connected to the carbon storage chamber 210, so as to suck the carbon powder in the collector ring chamber 10 into the carbon storage chamber 210. The carbon removal effect is ideal, thereby ensuring the normal operation of the wind turbine.

Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention is indicated by the claims.

It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (10)

1. A carbon powder removal system for cleaning the area between the collector ring assembly and the carbon brush assembly in the collector ring chamber, characterized in that the carbon powder removal system comprises an air injection device and a carbon absorption device; The jet device comprises a support, an air supply member and a plurality of jet assemblies, wherein the support is used to be connected to the collector ring chamber; The jet assembly comprises a jet component, which is arranged on the support component, one end of which is connected to the air supply component, and the other end of at least part of the jet component is used to extend to the gap area between the collector ring assembly and the carbon brush assembly in the collector ring chamber; The air jet component is configured to blow away carbon powder in the area between the collector ring assembly and the carbon brush assembly when the air supply component supplies air to the air jet component; The carbon absorption device comprises a carbon storage chamber and a suction piece, wherein the carbon storage chamber is used to communicate with the lower part of the collector ring chamber, and the suction piece is connected to the carbon storage chamber and is used to absorb the carbon powder in the collector ring chamber into the carbon storage chamber. 2. The toner removal system according to claim 1, characterized in that the jetting assembly further comprises a mounting member, the mounting member is connected to the supporting member, and the jetting member is correspondingly connected to the mounting member; The jet component has at least one oblique jet opening on one side facing the collector ring assembly or the carbon brush assembly, and the oblique jet opening is arranged in an extending direction away from the jet component; The jet device further comprises a driving mechanism, and the mounting member is connected to the driving mechanism; the oblique jet is configured so that when the driving mechanism drives the mounting member to rotate around the extending direction of the jet member, the oblique jet sprays toward the peripheral side of the jet member. 3. The carbon powder removal system according to claim 2, characterized in that the driving mechanism comprises a driving member and a plurality of transmission members drivingly connected to the driving member; The transmission member is correspondingly connected to the mounting member and is used to drive the mounting member to rotate. 4. The carbon powder removal system according to claim 2, characterized in that the jetting assembly further comprises a limiting member, and the jetting member moves relative to the mounting member in a direction close to or away from one of the collector ring assembly and the carbon brush assembly; The limiting member is correspondingly connected between the jetting member and the mounting member, and is used for limiting or releasing the limiting. 5. The carbon powder removal system according to claim 2, characterized in that the jetting assembly further comprises a rotary joint, and the rotary joint is used to be connected to a side of the jetting component away from the collector ring chamber; The jetting device further comprises an air collecting pipe, and the rotary joint is connected to the air supply member via the air collecting pipe. 6. The carbon powder removal system according to claim 5, characterized in that the jetting device further comprises a control valve, and the air collecting pipe is connected to the air supply member through the control valve; The control valve is configured to be intermittently turned on or off when the air supply component supplies air to the air injection component. 7. The carbon powder removal system according to any one of claims 1 to 6, characterized in that the carbon absorption device further comprises at least one filter element, which is disposed in the carbon storage chamber and is used to filter the carbon powder-containing airflow passing through the carbon storage chamber. 8. The carbon powder removal system according to claim 7 is characterized in that the carbon absorption device also includes a one-way air valve, and the one-way air valve is arranged on a pipeline connecting the carbon storage chamber and the collector ring chamber to allow air flow to pass from the collector ring chamber to the carbon storage chamber in one direction. 9 . The carbon powder removing system according to claim 7 , wherein the suction member is a powerful exhaust fan, and the powerful exhaust fan is arranged on the carbon storage chamber. 10. A wind turbine generator set, characterized in that it comprises a slip ring chamber, a slip ring assembly, a carbon brush assembly and a carbon powder removal system according to any one of claims 1 to 9, wherein the slip ring assembly and the carbon brush assembly are arranged in the slip ring chamber; The carbon brush assembly abuts against a portion of the collector ring assembly, and the carbon powder removal system is connected to the collector ring chamber.