Fan filter screen of generator rotor

Abstract

The utility model provides a generator rotor fan filter screen which comprises a first bent plate used for being matched with a shell of a generator, a containing groove is formed in one face of the first bent plate, the containing groove is used for containing a filter layer, a plurality of first through holes are formed in the bottom of the containing groove, the first through holes are used for gas circulation, and the first bent plate is used for being matched with the shell of the generator. A bolt hole is formed in the first bent plate, and the bolt hole is used for being connected with a shell bolt; the second bent plate is arranged in the containing groove and located on the side, away from the first bent plate, of the filtering layer, the second bent plate is connected with the first bent plate through a hasp, a plurality of second through holes are formed in the second bent plate, and the second through holes are used for gas circulation. The generator rotor fan filter screen is simple in structure and convenient to use, the filter screen replacement efficiency can be effectively improved, and time and labor are saved.

Description

Technical Field

[0001] This application relates to the technical field of generator filters, and particularly to a filter for a generator rotor fan. Background Art

[0002] During the use of a generator, it will get hot and effective heat dissipation of the generator is required. As the key to dissipating heat from the slip ring chamber, the filter of the generator rotor fan needs to be frequently replaced due to carbon deposition to avoid affecting the heat dissipation effect. The existing replacement operation usually requires removing the generator cover plate, then unscrewing the bolts to remove the entire filter cover, and then replacing the filter layer and repeating the installation operation to complete the replacement. The operation process takes up a large amount of space and is time-consuming and laborious. Therefore, there is an urgent need for a more convenient filter for the generator rotor fan. Summary of the Utility Model

[0003] In view of this, the purpose of this application is to provide a filter for a generator rotor fan to solve the related problems mentioned in the background art.

[0004] Based on the above purpose, this application provides a filter for a generator rotor fan, including: a first curved plate for cooperating with the housing of the generator. One side of the first curved plate is provided with a receiving groove for receiving a filter layer. The bottom of the receiving groove is provided with a plurality of first through holes for gas circulation. The first curved plate is provided with bolt holes for bolt connection with the housing; a second curved plate is arranged in the receiving groove on the side away from the first curved plate of the filter layer. The second curved plate is connected to the first curved plate by a buckle. The second curved plate is provided with a plurality of second through holes for gas circulation.

[0005] Further, the size of the receiving groove is 70% to 90% of the size of the first curved plate, and the size of the second curved plate is the same as the size of the receiving groove.

[0006] Further, the receiving groove is a blind groove, and the bolt holes are arranged on the outer periphery of the receiving groove.

[0007] Further, the receiving groove is a through groove, and the bolt holes are arranged at the bottom of the receiving groove and are arranged around the first through holes.

[0008] Further, three bolt holes are respectively arranged on the two opposite sides of the first curved plate in the width direction.

[0009] Further, the first through holes and the second through holes are arranged in one-to-one correspondence.

[0010] Further, the first through holes and the second through holes are both arranged in an array, and the shapes of the first through holes and the second through holes are long oval or rectangular.

[0011] Further, a hook is provided at the edge of the first curved plate, and a buckle ring cooperating with the hook is provided at the edge of the second curved plate.

[0012] Further, two of the hooks are respectively provided on two opposite sides of the first curved plate along the length direction, and each hook is located at the corner of the first curved plate; two of the buckle rings are respectively provided on two opposite sides of the second curved plate along the length direction, and each buckle ring is located at the corner of the second curved plate.

[0013] Further, one of the hooks is respectively provided on two opposite sides of the first curved plate along the length direction, and each hook is located in the middle of the edge of the first curved plate; one of the buckle rings is respectively provided on two opposite sides of the second curved plate along the length direction, and each buckle ring is located in the middle of the edge of the second curved plate.

[0014] As can be seen from the above, the generator rotor fan filter provided by the present application includes: a first curved plate for cooperating with the housing of the generator, a receiving groove is provided on one surface of the first curved plate, the receiving groove is used to receive a filter layer, a plurality of first through holes are provided at the bottom of the receiving groove, the first through holes are used for gas circulation, bolt holes are provided on the first curved plate, and the bolt holes are used for bolt connection with the housing; a second curved plate is arranged in the receiving groove and is located on the side of the filter layer away from the first curved plate, the second curved plate is connected to the first curved plate by a buckle, and a plurality of second through holes are provided on the second curved plate, the second through holes are used for gas circulation; the first curved plate can be fixed on the housing of the generator through the bolt holes, the second curved plate can be detachably connected to the first curved plate through the buckle, the second curved plate is arranged in the receiving groove, which improves the space utilization rate and plays a limiting role. A filter layer is provided between the second curved plate and the first curved plate. When replacing, only the second curved plate needs to be disassembled to replace the filter layer, and then the second curved plate is reassembled. There is no need to disassemble the first curved plate, which is simple and convenient, and can also ensure the safety of the replacement operation. The buckle connection method makes the replacement operation occupy a small space, and the generator cover does not need to be removed when replacing the filter screen; after testing, the replacement efficiency can be increased by 80%; the structure of the generator rotor fan filter is simple and easy to use, which can effectively improve the filter screen replacement efficiency and save time and effort. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1Schematic diagram of the structure of the filter screen of the generator rotor fan cooperating with the housing in the embodiment of the present application;

[0017] Figure 2 is Figure 1 Top view structural diagram of the first curved plate in;

[0018] Figure 3 is Figure 1 Top view structural diagram of the second curved plate in;

[0019] Figure 4 Stereo structural diagram of the first curved plate in the embodiment of the present application;

[0020] Figure 5 Stereo structural diagram of the second curved plate in the embodiment of the present application.

[0021] Reference numerals: 1, first curved plate; 1-1, receiving groove; 1-2, first through hole; 1-3, bolt hole; 1-4, hook; 2, second curved plate; 2-1, second through hole; 2-2, loop; 3, housing. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the present application clearer and more understandable, the following further elaborates on the present application in detail with reference to specific embodiments and the accompanying drawings.

[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the ordinary meanings understood by those of ordinary skill in the art belonging to the field of this disclosure. The terms such as "including" or "comprising" used in this disclosure mean that the elements or items appearing before this word cover the elements or items listed after this word and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] During the use of the generator, heat will be generated, and effective heat dissipation of the generator is required. As the key to dissipating heat in the slip ring chamber, the filter screen of the generator rotor fan needs to be frequently replaced due to carbon deposition to avoid affecting the heat dissipation effect. The existing replacement operation usually requires removing the generator cover plate, then unscrewing the bolts to remove the entire filter screen cover, and then replacing the filter layer and repeating the installation operation to complete the replacement. The operation process occupies a large space and is time-consuming and laborious. Therefore, there is an urgent need for a more convenient filter screen for the generator rotor fan.

[0025] The following, through specific embodiments and in combination with Figures 1 to 5Further elaborate on the technical solution of this application.

[0026] In some embodiments of this application, a generator rotor fan filter is provided. As Figure 1 shown, it includes: a first curved plate 1 for cooperating with the housing 3 of the generator. One side of the first curved plate 1 is provided with a receiving groove 1-1 for receiving a filter layer. The bottom of the receiving groove 1-1 is provided with a plurality of first through holes 1-2 for gas circulation. The first curved plate 1 is provided with bolt holes 1-3 for bolt connection with the housing 3; a second curved plate 2 is arranged in the receiving groove 1-1, on the side of the filter layer away from the first curved plate 1. The second curved plate 2 is connected to the first curved plate 1 by a buckle. The second curved plate 2 is provided with a plurality of second through holes 2-1 for gas circulation.

[0027] As Figure 1 shown, in the figure, the L direction is the length direction and the W direction is the width direction. The first curved plate 1 cooperates with the housing 3 of the generator. The side of the first curved plate 1 away from the housing 3 is provided with a receiving groove 1-1. A filter layer is arranged in the receiving groove 1-1. The material of the filter layer is, for example, porous foam, etc., for carbon deposition. As Figure 2 shown, the receiving groove 1-1 is provided with first through holes 1-2 for gas circulation. The first curved plate 1 is also provided with bolt holes 1-3. The first curved plate 1 can be fixed on the housing 3 of the generator through the bolt holes 1-3.

[0028] As Figure 3 shown, the second curved plate 2 is provided with second through holes 2-1 for gas circulation. The second curved plate 2 can be detachably connected to the first curved plate 1 by a buckle. The second curved plate 2 is arranged in the receiving groove 1-1, improving space utilization rate and playing a limiting role. A filter layer is arranged between the second curved plate 2 and the first curved plate 1. When replacing, only the second curved plate 2 needs to be disassembled to replace the filter layer, and then the second curved plate 2 is reassembled. There is no need to disassemble the first curved plate 1. It is simple and convenient. The buckle connection method occupies little space, and there is no need to remove the generator cover plate when replacing the filter screen.

[0029] The radian angle of the first curved plate 1 is, for example, 30.6°, the length is, for example, 580 mm, the width is, for example, 210 mm. The radian angle of the second curved plate 2 is, for example, 30.4°, the length is, for example, 540 mm, the width is, for example, 200 mm, the thickness is, for example, 2 mm, and the depth of the receiving groove 1-1 is, for example, 8 mm.

[0030] The generator rotor fan filter has a simple structure and is easy to use. It can effectively improve the filter replacement efficiency, saving time and effort. With this structure, a single operator can replace the filter without disassembling the bolts of the generator cover plate and the filter cover. Just opening the buckle can extract and replace the filter layer. Since the generator rotor fan filter is detachably fastened to the slip ring chamber, the first curved plate 1 separates the rotor fan, which is safer, faster and more convenient. It can meet the requirement that a single operator can complete the work in half an hour, while previously it required five people to cooperate for three hours to finish the work.

[0031] In some embodiments, the size of the receiving groove 1-1 is 70% to 90% of the size of the first curved plate 1, and the size of the second curved plate 2 is the same as that of the receiving groove 1-1.

[0032] Setting the size of the second curved plate 2 to be the same as that of the receiving groove 1-1 enables the receiving groove 1-1 to limit the position of the second curved plate 2, facilitating installation and disassembly with good stability. The size of the receiving groove 1-1 can be 70%, 80% or 90% etc. of the size of the first curved plate 1, without specific limitation, to ensure an effective filtering area.

[0033] In some embodiments, as Figure 4 shown, the receiving groove 1-1 is a blind groove, and the bolt holes 1-3 are arranged on the outer periphery of the receiving groove 1-1.

[0034] As Figure 4 shown, the receiving groove 1-1 is a blind groove, which can limit the position of the second curved plate 2 in both the length and width directions with good stability. The bolt holes 1-3 are arranged on the outer periphery of the receiving groove 1-1, without occupying the space inside the receiving groove 1-1, further improving the space utilization rate.

[0035] In some embodiments, as Figure 1 and Figure 2 shown, the receiving groove 1-1 is a through groove, and the bolt holes 1-3 are arranged at the bottom of the receiving groove 1-1 and are arranged around the first through hole 1-2.

[0036] As Figure 2 shown, the receiving groove 1-1 is a through groove, which is convenient to set and can limit the position of the second curved plate 2 in the length direction. And the size of the receiving groove 1-1 is larger, which can increase the effective filtering area.

[0037] In some embodiments, as Figure 2 and Figure 4 shown, three bolt holes 1-3 are respectively arranged on the two opposite sides of the first curved plate 1 in the width direction.

[0038] As Figure 4As shown, on both opposite sides of the first curved plate 1 in the width direction, there are respectively three bolt holes 1-3, and the bolt holes 1-3 are respectively located at the corners and the middle of the first curved plate 1 to ensure the fixing stability of the first curved plate 1.

[0039] In some embodiments, the first through holes 1-2 and the second through holes 2-1 are arranged in one-to-one correspondence.

[0040] The first through holes 1-2 and the second through holes 2-1 are arranged in one-to-one correspondence to ensure the gas flow effect.

[0041] In some embodiments, the first through holes 1-2 and the second through holes 2-1 are both arranged in an array, and the shapes of the first through holes 1-2 and the second through holes 2-1 are long oval or rectangular.

[0042] The shape of the first through holes 1-2 or the second through holes 2-1 is, for example, long oval or rectangular, and they are arranged in an array to ensure the gas flow effect.

[0043] In some embodiments, as Figure 2 and 3 shown, a hook 1-4 is provided at the edge of the first curved plate 1, and a loop 2-2 that cooperates with the hook 1-4 is provided at the edge of the second curved plate 2.

[0044] As Figure 2 shown, a hook 1-4 is provided at the edge of the first curved plate 1, and as Figure 3 shown, a loop 2-2 that cooperates with the hook 1-4 is provided at the edge of the second curved plate 2, and the hook 1-4 and the loop 2-2 achieve a snap connection.

[0045] In some embodiments, as Figure 2 and Figure 3 shown, two hooks 1-4 are respectively provided on both opposite sides of the first curved plate 1 in the length direction, and each hook 1-4 is located at the corner of the first curved plate 1; two loops 2-2 are respectively provided on both opposite sides of the second curved plate 2 in the length direction, and each loop 2-2 is located at the corner of the second curved plate 2.

[0046] As Figure 2 shown, two hooks 1-4 are respectively provided on both opposite sides of the first curved plate 1 in the length direction, and each hook 1-4 is located at the corner of the first curved plate 1, and as Figure 3 shown, two loops 2-2 are respectively provided on both opposite sides of the second curved plate 2 in the length direction, and each loop 2-2 is located at the corner of the second curved plate 2. By providing four snap fasteners, the stable connection between the second curved plate 2 and the first curved plate 1 is ensured.

[0047] In some embodiments, as Figure 4 and Figure 5As shown, on opposite sides of the first curved plate 1 along its length direction, there is respectively provided a hook 1-4, and each hook 1-4 is located in the middle of the edge of the first curved plate 1; on opposite sides of the second curved plate 2 along its length direction, there is respectively provided a loop 2-2, and each loop 2-2 is located in the middle of the edge of the second curved plate 2.

[0048] As Figure 4 shown, on opposite sides of the first curved plate 1 along its length direction, there is respectively provided a hook 1-4, and each hook 1-4 is located in the middle of the edge of the first curved plate 1, as Figure 5 shown, on opposite sides of the second curved plate 2 along its length direction, there is respectively provided a loop 2-2, and each loop 2-2 is located in the middle of the edge of the second curved plate 2. This way can cooperate with the design that the receiving groove 1-1 is a blind groove, saving costs while ensuring connection stability.

[0049] In each embodiment of this application, a progressive approach is adopted for description. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0050] The description of this application is given for purposes of illustration and description, and is not intended to be exhaustive or to limit the application to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of this application and its practical application, and to enable those of ordinary skill in the art to understand this application and thus design various embodiments with various modifications suitable for specific purposes.

[0051] Those of ordinary skill in the art should understand that: the discussion of any above embodiment is only exemplary, and is not intended to imply that the scope of this application (including the claims) is limited to these examples; under the concept of this application, the technical features among the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0052] Although this application has been described in connection with specific embodiments of this application, many substitutions, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art based on the previous description.

[0053] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application shall be included within the protection scope of this application.

Claims

1. A generator rotor fan filter, characterized in that: include: A first curved plate, used to match with the housing of the generator, a receiving groove is provided on one side of the first curved plate, the receiving groove is used to receive the filter layer, a plurality of first through holes are provided at the bottom of the receiving groove, the first through holes are used for gas circulation, and a bolt hole is provided on the first curved plate, the bolt hole is used to be connected with the housing bolt; The second curved plate is arranged in the accommodating groove and is located on the side of the filter layer away from the first curved plate. The second curved plate is connected to the first curved plate by a buckle. The second curved plate is provided with a plurality of second through holes for gas circulation.

2. The generator rotor fan filter according to claim 1, characterized in that: The size of the receiving groove is 70% to 90% of the size of the first curved plate, and the size of the second curved plate is the same as the size of the receiving groove.

3. The generator rotor fan filter according to claim 1, characterized in that: The receiving groove is a blind groove, and the bolt hole is arranged on the outer periphery of the receiving groove.

4. The generator rotor fan filter according to claim 1, characterized in that: The accommodating groove is a through groove, and the bolt hole is arranged at the bottom of the accommodating groove and around the first through hole.

5. The generator rotor fan filter according to claim 1, characterized in that: The first curved plate is provided with three bolt holes on two opposite sides along the width direction.

6. The generator rotor fan filter according to claim 1, characterized in that: The first through holes and the second through holes are arranged in a one-to-one correspondence.

7. The generator rotor fan filter according to claim 1, characterized in that: The first through holes and the second through holes are arranged in an array, and the shapes of the first through holes and the second through holes are oblong or rectangular.

8. The generator rotor fan filter according to claim 1, characterized in that: A hook is provided at the edge of the first curved plate, and a ring matched with the hook is provided at the edge of the second curved plate.

9. The generator rotor fan filter according to claim 8, characterized in that: Two hooks are respectively provided on opposite sides of the first curved plate along the length direction, and each hook is located at the corner of the first curved plate; two rings are respectively provided on opposite sides of the second curved plate along the length direction, and each ring is located at the corner of the second curved plate.

10. The generator rotor fan filter according to claim 8, characterized in that: A hook is respectively provided on two opposite sides of the first curved plate along the length direction, and each hook is located in the middle of the edge of the first curved plate; a ring is respectively provided on two opposite sides of the second curved plate along the length direction, and each ring is located in the middle of the edge of the second curved plate.

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