Carbon dust collecting device for nuclear power plant generator

Abstract

The utility model discloses a nuclear power plant generator carbon powder collection device, including support frame, cover, first carbon powder collection pipe, second carbon powder collection pipe, first high pressure fan and second high pressure fan, support frame installs on the base of nuclear power plant generator, and cover is connected with support frame, and cover is used for covering the outer periphery of carbon brush device, and cover has the open end, and the open end sets up towards the circumferential side surface of the rotor slip ring of nuclear power plant generator, one end of first carbon powder collection pipe is connected with the lower end of cover and communicates, and the other end of first carbon powder collection pipe is connected with first high pressure fan, and one end of second collection is connected with the lower end of cover and communicates, and the other end of second carbon powder collection pipe is connected with second high pressure fan. The application of nuclear power plant generator carbon powder collection device can completely eliminate the pollution of carbon powder to rectifier wheel, effectively avoid the carbon powder into rectifier wheel cover rectification assembly and cause short circuit risk, can improve the security of rectification assembly.

Description

Technical Field

[0001] This utility model relates to the field of nuclear power technology, and in particular to a carbon powder collection device for nuclear power plant generators. Background Technology

[0002] The field magnetic field grounding monitoring device for the generator at a nuclear power plant is a carbon brush structure. When the exciter rotates and the rectifier wheel leads out the negative electrode ring, the carbon brush measures the insulation value between the negative electrode ring and the grounding ring to determine whether the magnetic field is grounded. The carbon brush structure is close to the rectifier wheel, and the wind direction is from the brush lifting device towards the rectifier wheel. There is a risk that carbon powder will enter the rectifier wheel, cover the rectifier components, and cause a short circuit. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a carbon powder collection device for nuclear power plant generators, so as to solve the problem of short circuit risk caused by carbon powder entering the rectifier wheel and covering the rectifier components in related technologies.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a carbon powder collection device for a nuclear power plant generator, including a support frame, a cover, a first carbon powder collection pipe, a second carbon powder collection pipe, a first high-pressure blower, and a second high-pressure blower;

[0005] The support frame is mounted on the base of the nuclear power plant generator. The cover is connected to the support frame. The cover is used to cover the outer periphery of the carbon brush device, and the cover has an open end. The open end is arranged facing the circumferential side of the rotor slip ring of the nuclear power plant generator.

[0006] One end of the first toner collection tube is connected to and communicates with the lower end of the cover, and the other end of the first toner collection tube is connected to the first high-pressure blower. One end of the second collection tube is connected to and communicates with the lower end of the cover, and the other end of the second toner collection tube is connected to the second high-pressure blower.

[0007] In some embodiments, the support frame includes a base plate and a support plate perpendicularly connected to the base plate. The base plate is provided with a plurality of first fixing holes; the upper part of the support plate is provided with a plurality of second fixing holes; and the cover is provided with a plurality of third fixing holes opposite to the second fixing holes.

[0008] The nuclear power plant generator carbon powder collection device also includes a number of first fasteners and a number of second fasteners. The first fasteners are inserted through the first fixing hole and installed on the base of the nuclear power plant generator.

[0009] The second fastener is used to connect the second fixing hole and the third fixing hole to fix the support plate and the cover together.

[0010] In some embodiments, the support plate has a first surface and a second surface disposed opposite to each other, and the first surface of the support plate is connected to the cover.

[0011] The support frame also includes several reinforcing ribs, which connect the upper surface of the base plate to the first surface of the support plate, and / or connect the upper surface of the base plate to the second surface of the support plate.

[0012] In some embodiments, the housing includes a first housing and a second housing connected to each other, the inner cavities of the first housing and the second housing communicating with each other, and the first housing being disposed near the circumferential side of the rotor slip ring of the nuclear power plant generator;

[0013] The first housing includes an upper side plate, a lower side plate, an inner side plate, and an outer side plate. The upper side plate is located above the lower side plate. The inner side plate and the outer side plate are arranged parallel to each other and spaced apart. The inner side plate and the outer side plate are connected to the upper side plate and the lower side plate. The outer side plate is connected to the support frame.

[0014] In some embodiments, the upper side plate is a rectangular flat plate;

[0015] The lower side plate includes a first inclined plate, a first horizontal plate, a second inclined plate, and a second horizontal plate connected in sequence. The first inclined plate is located near the circumferential side of the rotor slip ring of the nuclear power plant generator. The first inclined plate is inclined from top to bottom, and the second inclined plate is inclined from bottom to top. The first horizontal plate and the second horizontal plate are both parallel to the upper side plate. The plane of the first horizontal plate is located below the plane of the second horizontal plate.

[0016] The first toner collection pipe is connected to the first horizontal plate; the second toner collection pipe is connected to the second horizontal plate.

[0017] In some embodiments, the nuclear power plant generator toner collection device further includes a soundproof enclosure covering the periphery of the nuclear power plant generator;

[0018] One end of the second housing is connected to the first housing, and the other end of the second housing is connected to the inner wall of the soundproof enclosure; the first high-pressure blower and the second high-pressure blower are located on the outside of the soundproof enclosure;

[0019] Both the first toner collection pipe and the second toner collection pipe are installed through the wall of the soundproof cover.

[0020] In some embodiments, the nuclear power plant generator toner collection device includes a casing, and the first high-pressure blower and the second high-pressure blower are both installed inside the casing.

[0021] In some embodiments, both the first toner collection tube and the second toner collection tube are connected to the support frame via tube clamps.

[0022] In some embodiments, both the first toner collecting tube and the second toner collecting tube are stainless steel corrugated pipes.

[0023] The wall thickness of both the first and second toner collection tubes is 3 mm, and the inner diameter of both the first and second toner collection tubes is 45 mm.

[0024] In some embodiments, the housing is a housing made of epoxy board.

[0025] The present invention has the following advantages: the application of this nuclear power plant generator carbon powder collection device can completely eliminate carbon powder contamination of the rectifier wheel, effectively avoid carbon powder entering the rectifier wheel and covering the rectifier components, thereby preventing short circuit risks and improving the safety of the rectifier components to ensure stable equipment operation. Attached Figure Description

[0026] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0027] Figure 1 This is one of the schematic diagrams illustrating the application of the nuclear power plant generator carbon powder collection device in some embodiments of this utility model;

[0028] Figure 2 This is the second schematic diagram of the application of the nuclear power plant generator carbon powder collection device in some embodiments of this utility model;

[0029] Figure 3 This is the third schematic diagram illustrating the application of the nuclear power plant generator carbon powder collection device in some embodiments of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of a nuclear power plant generator carbon powder collection device in some embodiments of this utility model;

[0031] Figure 5 This is one of the structural schematic diagrams of the support frame in some embodiments of this utility model;

[0032] Figure 6 This is the second schematic diagram of the support frame in some embodiments of this utility model;

[0033] Figure 7This is one of the partial structural schematic diagrams of a nuclear power plant generator carbon powder collection device in some embodiments of this utility model;

[0034] Figure 8 This is the second partial structural schematic diagram of the nuclear power plant generator carbon powder collection device in some embodiments of this utility model;

[0035] Figure 9 This is a schematic diagram of the structure of the first high-pressure blower, the second high-pressure blower, and the casing in some embodiments of this utility model. Detailed Implementation

[0036] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0037] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0038] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0039] See Figures 1 to 8 This utility model discloses a toner collection device for a nuclear power plant generator, including a support frame 10, a cover 20, a first toner collection pipe 30, a second toner collection pipe 40, a first high-pressure blower 50, and a second high-pressure blower 60.

[0040] The support frame 10 is mounted on the base 200 of the nuclear power plant generator 100. The cover 20 is connected to the support frame 10. The cover 20 is used to cover the outer periphery of the carbon brush device 300. The cover 20 has an open end that faces the circumferential side of the rotor slip ring 101 of the nuclear power plant generator 100.

[0041] One end of the first toner collection pipe 30 is connected to and communicates with the lower end of the casing 20, and the other end of the first toner collection pipe 30 is connected to the first high-pressure blower 50. One end of the second toner collection pipe 40 is connected to and communicates with the lower end of the casing 20, and the other end of the second toner collection pipe 40 is connected to the second high-pressure blower 60. The first high-pressure blower 50 and the second high-pressure blower 60 can be used in a standby manner, for example, when the first high-pressure blower 50 is activated, the second high-pressure blower 60 can be in a standby state. Alternatively, when the second high-pressure blower 60 is activated, the first high-pressure blower 50 can be in a standby state. In this case, if the first high-pressure blower 50 fails, the second high-pressure blower 60 can be started. Or, if the second high-pressure blower 60 fails, the first high-pressure blower 50 can be started.

[0042] See Figure 5 and Figure 6 In some embodiments, the support frame 10 includes a base plate 11 and a support plate 12 perpendicularly connected to the base plate 11. The base plate 11 has a plurality of first fixing holes 111; the upper part of the support plate 12 has a plurality of second fixing holes 121; and the cover 20 has a plurality of third fixing holes 2141 opposite to the second fixing holes 121. The nuclear power plant generator toner collection device also includes a plurality of first fasteners and a plurality of second fasteners. The first fasteners pass through the first fixing holes 111 and are installed on the base 200 of the nuclear power plant generator 100; the second fasteners are used to connect the second fixing holes 121 and the third fixing holes 2141 to fix the support plate 12 and the cover 20 together to achieve a detachable connection.

[0043] The first fastener may be, but is not limited to, a fastening bolt or a fastening screw, and the second fastener may be, but is not limited to, a fastening bolt or a fastening screw.

[0044] See Figure 5 and Figure 6 In some embodiments, the first fixing hole 111, the second fixing hole 121 and the third fixing hole 2141 can all be oblong holes to facilitate proper adjustment of the installation position.

[0045] See Figure 5 and Figure 6 In some embodiments, the support plate 12 has a first surface and a second surface disposed opposite to each other, and the first surface of the support plate 12 is connected to the cover 20; the support frame 10 also includes a plurality of reinforcing ribs 13, the reinforcing ribs 13 connecting the upper surface of the base plate 11 to the first surface of the support plate 12, and / or, the reinforcing ribs 13 connecting the upper surface of the base plate 11 to the second surface of the support plate 12.

[0046] See Figure 5 and Figure 6 In some embodiments, the support frame 10 may be made of stainless steel, including but not limited to 304 stainless steel. The thickness of both the base plate 11 and the support plate 12 is 20 mm.

[0047] See Figure 7 and Figure 8 In some embodiments, the housing 20 includes a first housing 21 and a second housing 22 connected to each other. The inner cavities of the first housing 21 and the second housing 22 are in communication. The first housing 21 is located near the circumferential side of the rotor slip ring 101 of the nuclear power plant generator 100. The first housing 21 and the second housing 22 are detachably connected, allowing for easy disassembly of the second housing 22 to inspect or replace the carbon brush device 300 inside the housing 20. The second housing 22 may be connected to the first housing 21 by fastening bolts or the like. The second housing 22 may have a flared structure, and the longitudinal cross-sectional area of ​​the inner cavity of the second housing 22 gradually increases from the side closer to the first housing 21 to the side farther away from the first housing 21. The second housing 22 provides sufficient space for the carbon brush device 300.

[0048] See Figure 7 and Figure 8In some embodiments, the first housing 21 includes an upper side plate 211, a lower side plate 212, an inner side plate 213, and an outer side plate 214. The upper side plate 211 is located above the lower side plate 212. The inner side plate 213 and the outer side plate 214 are arranged parallel to each other and spaced apart, and the inner side plate 213 and the outer side plate 214 connect the upper side plate 211 and the lower side plate 212. The outer side plate 214 is connected to the support frame 10. The outer side plate 214 is equipped with a third fixing hole 2141. The upper side plate 211, the lower side plate 212, the inner side plate 213, and the outer side plate 214 can be connected by fastening screws. The thickness of the upper side plate 211, the lower side plate 212, the inner side plate 213, and the outer side plate 214 can be 5 mm.

[0049] See Figure 7 and Figure 8 In some embodiments, the upper side plate 211 is a rectangular flat plate; the lower side plate 212 includes a first inclined plate 2121, a first horizontal plate 2122, a second inclined plate 2123, and a second horizontal plate 2124 connected in sequence. The first inclined plate 2121 is disposed near the circumferential side of the rotor slip ring 101 of the nuclear power plant generator 100. The first inclined plate 2121 is inclined from top to bottom, and the second inclined plate 2123 is inclined from bottom to top. The first horizontal plate 2122 and the second horizontal plate 2124 are both disposed parallel to the upper side plate 211. The plane of the first horizontal plate 2122 is located below the plane of the second horizontal plate 2124, so that a portion of the first horizontal plate 2122 forms a groove structure; the first toner collection pipe 30 is connected to the first horizontal plate 2122; and the second toner collection pipe 40 is connected to the second horizontal plate 2124.

[0050] See Figures 1 to 4 In some embodiments, the nuclear power plant generator toner collection device further includes a soundproof cover 70 covering the outer periphery of the nuclear power plant generator 100; one end of the second housing 22 is connected to the first housing 21, and the other end of the second housing 22 is connected to the inner wall of the soundproof cover 70, making the second housing 22 relatively closed; the first high-pressure blower 50 and the second high-pressure blower 60 are located outside the soundproof cover 70, so that the first high-pressure blower 50 and the second high-pressure blower 60 are not easily affected by vibration and noise, and also facilitate the maintenance and start-up of the first high-pressure blower 50 and the second high-pressure blower 60 with reduced vibration and noise impact; the first toner collection pipe 30 and the second toner collection pipe 40 are both disposed through the wall of the soundproof cover 70, and the soundproof cover 70 may be provided with through holes to allow the first toner collection pipe 30 and the second toner collection pipe 40 to pass through.

[0051] See Figure 9In some embodiments, the nuclear power plant generator toner collection device includes a housing 80, within which the first high-pressure blower 50 and the second high-pressure blower 60 are both installed. The housing 80 may have upper and lower installation spaces, with the first high-pressure blower 50 installed in the lower space and the second high-pressure blower 60 installed in the upper space. In some embodiments, the door of the housing 80 may be equipped with a combination lock, allowing only authorized personnel to open the door.

[0052] In some embodiments, the first high-pressure blower 50 may be connected to a first collection container to deliver collected toner into the first collection container. The second high-pressure blower 60 may be connected to a second collection container to deliver collected toner into the second collection container.

[0053] In some embodiments, the specifications of the first high-pressure blower 50 and the second high-pressure blower 60 are: power 3000W, air pressure 28kPa, and air volume 100m³ / h. 3 / h.

[0054] In some embodiments, both the first toner collection tube 30 and the second toner collection tube 40 are connected to the support frame 10 via tube clamps, which can prevent the first toner collection tube 30 and the second toner collection tube 40 from affecting other components when they shake. The tube clamps can be selected from existing technologies, and are not specifically limited here. Of course, in some embodiments, the tube clamps may not be provided, and are not specifically limited here.

[0055] In some embodiments, the first toner collection tube 30 and the second toner collection tube 40 are both stainless steel corrugated tubes; the wall thickness of the first toner collection tube 30 and the second toner collection tube 40 is 3mm, and the inner diameter of the first toner collection tube 30 and the second toner collection tube 40 is 45mm.

[0056] In some embodiments, the housing 20 is a housing made of epoxy board.

[0057] The application of this nuclear power plant generator carbon powder collection device can completely eliminate carbon powder contamination of the rectifier wheel, effectively prevent carbon powder from entering the rectifier wheel and covering the rectifier components, thus avoiding the risk of short circuits and improving the safety of the rectifier components to ensure stable equipment operation.

[0058] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A carbon powder collection device for a nuclear power plant generator, characterized in that, It includes a support frame (10), a cover (20), a first toner collection pipe (30), a second toner collection pipe (40), a first high-pressure blower (50), and a second high-pressure blower (60); The support frame (10) is mounted on the base (200) of the nuclear power plant generator (100). The cover (20) is connected to the support frame (10). The cover (20) is used to cover the outer periphery of the carbon brush device (300). The cover (20) has an open end, which is arranged facing the circumferential side of the rotor slip ring (101) of the nuclear power plant generator (100). One end of the first toner collection pipe (30) is connected to and communicates with the lower end of the cover (20), and the other end of the first toner collection pipe (30) is connected to the first high-pressure blower (50). One end of the second collection pipe (40) is connected to and communicates with the lower end of the cover (20), and the other end of the second toner collection pipe (40) is connected to the second high-pressure blower (60).

2. The nuclear power plant generator carbon powder collection device according to claim 1, characterized in that, The support frame (10) includes a base plate (11) and a support plate (12) perpendicularly connected to the base plate (11). The base plate (11) is provided with a plurality of first fixing holes (111); the upper part of the support plate (12) is provided with a plurality of second fixing holes (121); and the cover (20) is provided with a plurality of third fixing holes (2141) opposite to the second fixing holes (121). The nuclear power plant generator carbon powder collection device also includes a number of first fasteners and a number of second fasteners. The first fasteners are inserted through the first fixing hole (111) and installed on the base (200) of the nuclear power plant generator (100). The second fastener is used to connect the second fixing hole (121) and the third fixing hole (2141) to fix the support plate (12) and the cover (20) together.

3. The nuclear power plant generator carbon powder collection device according to claim 2, characterized in that, The support plate (12) has a first surface and a second surface arranged opposite to each other, and the first surface of the support plate (12) is connected to the cover (20); The support frame (10) further includes a plurality of reinforcing ribs (13), the reinforcing ribs (13) connecting the upper surface of the base plate (11) to the first surface of the support plate (12), and / or, the reinforcing ribs (13) connecting the upper surface of the base plate (11) to the second surface of the support plate (12).

4. The nuclear power plant generator carbon powder collection device according to claim 1, characterized in that, The enclosure (20) includes a first housing (21) and a second housing (22) connected to each other. The inner cavities of the first housing (21) and the second housing (22) are connected. The first housing (21) is located near the circumferential side of the rotor slip ring (101) of the nuclear power plant generator (100). The first housing (21) includes an upper side plate (211), a lower side plate (212), an inner side plate (213), and an outer side plate (214). The upper side plate (211) is located above the lower side plate (212). The inner side plate (213) and the outer side plate (214) are arranged parallel to each other and spaced apart. The inner side plate (213) and the outer side plate (214) connect the upper side plate (211) and the lower side plate (212). The outer side plate (214) is connected to the support frame (10).

5. The nuclear power plant generator carbon powder collection device according to claim 4, characterized in that, The upper side plate (211) is a rectangular flat plate; The lower side plate (212) includes a first inclined plate (2121), a first horizontal plate (2122), a second inclined plate (2123), and a second horizontal plate (2124) connected in sequence. The first inclined plate (2121) is disposed on the circumferential side of the rotor slip ring (101) of the nuclear power plant generator (100). The first inclined plate (2121) is inclined from top to bottom, and the second inclined plate (2123) is inclined from bottom to top. The first horizontal plate (2122) and the second horizontal plate (2124) are both parallel to the upper side plate (211). The plane where the first horizontal plate (2122) is located is located below the plane where the second horizontal plate (2124) is located. The first toner collection tube (30) is connected to the first horizontal plate (2122); the second toner collection tube (40) is connected to the second horizontal plate (2124).

6. The nuclear power plant generator carbon powder collection device according to claim 4, characterized in that, The nuclear power plant generator carbon powder collection device also includes a soundproof cover (70) covering the outer periphery of the nuclear power plant generator (100); One end of the second housing (22) is connected to the first housing (21), and the other end of the second housing (22) is connected to the inner wall of the soundproof cover (70); the first high-pressure blower (50) and the second high-pressure blower (60) are located on the outside of the soundproof cover (70); Both the first toner collection pipe (30) and the second toner collection pipe (40) are installed through the wall of the soundproof cover (70).

7. The nuclear power plant generator carbon powder collection device according to claim 1, characterized in that, The nuclear power plant generator carbon powder collection device includes a casing (80), in which the first high-pressure fan (50) and the second high-pressure fan (60) are both installed.

8. The nuclear power plant generator carbon powder collection device according to claim 1, characterized in that, Both the first toner collection tube (30) and the second toner collection tube (40) are connected to the support frame (10) via tube clamps.

9. The nuclear power plant generator carbon powder collection device according to claim 1, characterized in that, Both the first carbon powder collecting pipe (30) and the second carbon powder collecting pipe (40) are stainless steel corrugated pipes; The wall thickness of the first toner collection tube (30) and the second toner collection tube (40) is 3mm, and the inner diameter of the first toner collection tube (30) and the second toner collection tube (40) is 45mm.

10. The nuclear power plant generator carbon powder collection device according to claim 1, characterized in that, The casing (20) is made of epoxy board.

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