Conductive connection structure of drum-shaped rotary filter screen framework and drum-shaped rotary filter screen

Abstract

The utility model provides a conductive connection structure of a drum-shaped rotary filter screen framework and a drum-shaped rotary filter screen, and the conductive connection structure comprises at least two conductive connection parts and a conductive connection belt. Wherein at least two conductive connecting parts are respectively fixed on the adjacent framework parts in a conductive manner and are exposed out of the anti-corrosion layer. The conductive connecting belts are conductors and are in conductive connection with the conductive connecting parts on the two adjacent framework parts respectively, so that the adjacent framework parts are in conductive connection, the current continuity between the adjacent framework parts is guaranteed, the original paint quality of the anti-corrosion layer is guaranteed, and the service life of the anti-corrosion layer is prolonged. And finally, the current continuity of the drum-shaped rotary filter screen framework is realized, and the anti-corrosion effect of the drum-shaped rotary filter screen framework is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of corrosion prevention of the drum - type rotary filter screen skeleton, in particular to a conductive connection structure of the drum - type rotary filter screen skeleton and a drum - type rotary filter screen. Background Technique

[0002] In the nuclear power field, drum - type rotary filter screens are often used for seawater filtration. The drum - type rotary filter screen adopts a structural design of a carbon steel skeleton plus a stainless steel mesh sheet. Due to the strong corrosiveness of seawater, in addition to using paint coatings for anti - corrosion of the carbon steel skeleton, a cathodic protection system is commonly used as a supplementary anti - corrosion means. To ensure the effective operation of the cathodic protection system, the realization of current continuity of the carbon steel skeleton of the drum - type rotary filter screen is a prerequisite.

[0003] In the existing installation process, to achieve the current continuity of the drum - type rotary filter screen skeleton, it is necessary to destructively grind and remove the paint on the surface of any bolt hole between every two connected components of the skeleton, so as to achieve metal - to - metal contact between the bolt, gasket and the skeleton, thereby realizing current continuity. However, the paint removed from the bolt holes by destructive grinding must be completely repainted and repaired in the subsequent installation process. However, this method not only consumes a lot of time and affects the installation efficiency of the skeleton, but also the quality of the repainted area is difficult to guarantee. During the subsequent installation and use process, the drum - type rotary filter screen skeleton is very easy to rust from the bolt hole grinding area, and then leads to the problem of large - area rust. Summary of the Utility Model

[0004] The utility model provides a conductive connection structure of a drum - type rotary filter screen skeleton and a drum - type rotary filter screen to solve the technical problem that the drum - type rotary filter screen skeleton is easy to rust from the bolt hole grinding area after grinding and repainting, and then leads to large - area rust.

[0005] On the one hand, the utility model provides a conductive connection structure of a drum - type rotary filter screen skeleton. The drum - type rotary filter screen skeleton is spliced and connected by several groups of skeleton components. The surface of the skeleton component has an anti - corrosion layer. The conductive connection structure includes: at least two conductive connection components and a conductive connection belt. At least two of the conductive connection components are respectively conductively fixed on adjacent skeleton components and are exposed outside the anti - corrosion layer. The conductive connection belt is a conductor and is respectively conductively connected to the conductive connection components on two adjacent skeleton components, so that adjacent skeleton components are conductively spliced and connected.

[0006] In an embodiment of the conductive connection structure of the utility model, the conductive connection component includes a conductive stud and a locking nut. The conductive stud is conductively fixed on the skeleton component; the locking nut is threadedly connected to the conductive stud to lock and fix the conductive connection belt on the conductive stud.

[0007] In an embodiment of the conductive connection structure of the present utility model, the conductive connection band is erected and connected to the conductive stud of the adjacent skeleton member, and is not in contact with the skeleton member.

[0008] In an embodiment of the conductive connection structure of the present utility model, the conductive stud includes a boss portion and a threaded stud. The boss portion is welded and connected to the skeleton member; one end of the threaded stud is conductively fixed to the boss portion, a conductive connection band is sleeved and connected on the threaded stud, and a locking nut is threadedly connected.

[0009] In an embodiment of the conductive connection structure of the present utility model, a threaded hole is provided on the boss portion; one end of the threaded stud is threadedly connected to the threaded hole on the boss portion.

[0010] In an embodiment of the conductive connection structure of the present utility model, the conductive stud includes a bolt head and a bolt rod of an integral structure. The bolt head is welded and fixed to the skeleton member, a conductive connection band is sleeved and connected on the bolt rod, and a locking nut is threadedly connected.

[0011] In an embodiment of the conductive connection structure of the present utility model, the conductive connection member further includes a gasket. The conductive connection band is clamped between at least two gaskets, and the gasket is locked and fixed to the conductive stud by a locking nut.

[0012] In an embodiment of the conductive connection structure of the present utility model, the conductive stud is welded at the edge of the skeleton member close to the adjacent conductive connection member.

[0013] In an embodiment of the conductive connection structure of the present utility model, the conductive connection band is made of stainless steel material.

[0014] On the other hand, the present utility model further provides a drum-type rotary filter screen, which includes: a drum-type rotary filter screen skeleton, a drum-type filter screen, and a conductive connection structure. The drum-type rotary filter screen skeleton is spliced and connected by a plurality of groups of skeleton members, and the adjacent skeleton members are spliced and conductively connected through the conductive connection structure.

[0015] The beneficial effects of the present utility model: A conductive connection structure of a drum-type rotary filter screen skeleton and a drum-type rotary filter screen proposed by the present utility model. The conductive connection structure pre-sets conductive connection members on the skeleton members, and uses the conductive connection members between adjacent skeleton members and the connected conductive connection bands as devices to ensure the current continuity between the skeleton members, thereby ensuring the current continuity between the skeleton members, avoiding grinding the anti-corrosion layer coated on the skeleton members, ensuring the original paint quality of the anti-corrosion layer, and finally realizing the current continuity of the drum-type rotary filter screen skeleton and ensuring the anti-corrosion effect of the drum-type rotary filter screen skeleton. Description of the Drawings

[0016] Figure 1 Schematic diagram of an example structure of the conductive connection structure of the present utility model;

[0017] Figure 2 Schematic diagram of an example structure of the conductive connection structure of the present utility model after spraying the anti-corrosion layer;

[0018] Figure 3 Schematic diagram of an example conductive stud and its connection structure of the conductive connection structure of the present utility model;

[0019] Figure 4 Schematic diagram of an example conductive stud and its connection structure of the conductive connection structure of the present utility model.

[0020] 100, drum-shaped rotary filter screen skeleton; 110, skeleton component; 200, conductive connection component; 210, conductive stud; 211, boss part; 212, threaded column; 213, bolt head; 214, bolt rod; 220, locking nut; 230, gasket; 300, anti-corrosion layer; 400, conductive connection strip. Specific embodiments

[0021] The following uses specific specific examples to illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. It should also be understood that the terms used in the embodiments of the present utility model are for the purpose of describing specific specific implementation manners, rather than for limiting the protection scope of the present utility model. The test methods without specific conditions noted in the following embodiments are usually carried out according to conventional conditions, or according to the conditions recommended by each manufacturer.

[0022] When the embodiments give numerical ranges, it should be understood that unless otherwise stated in the present utility model, any numerical value between the two endpoints of each numerical range and any one of the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present utility model, based on the understanding of those skilled in the art of the prior art and the description of the present utility model, can also use any methods, devices, and materials of the prior art similar or equivalent to the methods, devices, and materials described in the embodiments of the present utility model to implement the present utility model.

[0023] It should be noted that terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

[0024] In the existing installation process of the drum - type rotary filter screen skeleton, to achieve the current continuity of the drum - type rotary filter screen skeleton, usually the original stainless - steel bolt connection points of the skeleton are processed. That is, the paint on the surface of any bolt hole between every two connected components of the skeleton needs to be destructively polished and removed to achieve metal - to - metal contact between the bolt, gasket and the skeleton, so as to achieve current continuity. However, the paint at the bolt holes removed by destructive polishing must be completely repainted and repaired in the subsequent installation process. However, since the position where the bolt gasket contacts the metal matrix of the skeleton needs to achieve metal - to - metal contact, it cannot be painted and repaired. Only the paint can be used to seal the contact position between the gasket and the skeleton from the side gap to prevent seawater from seeping into the space between the skeleton and the gasket and causing corrosion at this metal surface. But this painting process is difficult to ensure the painting quality at the polished area, resulting in the paint quality being difficult to restore to the original paint quality. As a result, during the late installation to the initial commissioning stage of the drum - type rotary filter screen, it is easy to start rusting from the polished bolt holes and then spread to the surrounding areas, eventually resulting in a large - area rust problem. This problem is a high - frequency quality problem during the installation process of the drum - type rotary filter screen and has not been effectively solved from the design source so far. Only after a large - area rust occurs, rust removal and painting repair are carried out later to solve the problem.

[0025] In view of this, the present utility model provides a conductive connection structure for a drum - type rotary filter screen skeleton and a drum - type rotary filter screen. By pre - setting conductive connection components exposed outside the anti - corrosion layer on the skeleton components, the conductive connection components between adjacent skeleton components and the connected conductive connection belts are used as structures to ensure the current continuity between the skeleton components, and the anti - corrosion effect of the drum - type rotary filter screen skeleton is ensured.

[0026] Please refer to Figures 1 - 4, the present utility model provides a conductive connection structure for a drum-shaped rotary filter screen skeleton, including a drum-shaped rotary filter screen skeleton 100 and a conductive connection structure. The drum-shaped rotary filter screen skeleton 100 is spliced and connected by a plurality of groups of skeleton components 110. The structure of the skeleton component 110 includes various component structures such as main cross beams, A-shaped frames, main spokes, and auxiliary cross beams. The skeleton components 110 with various component structures are spliced and connected according to the structural design of the drum-shaped rotary filter screen skeleton 100. The splicing and connection methods are such as welding and stainless steel bolt connection, and preferably stainless steel bolt connection is adopted. Among them, the skeleton component 110 is made of carbon steel material, and the surface of the skeleton component 110 has an anti-corrosion layer 300. After the skeleton component 110 is produced by the manufacturer, the anti-corrosion layer 300, that is, the paint layer, will be sprayed on the surface for the anti-corrosion measures of the carbon steel skeleton in the seawater environment. When stainless steel bolts are used as splicing connectors, each group of skeleton components 110 has bolt holes for connecting stainless steel bolts, and they are spliced and fixed on-site by stainless steel bolts, so that the stainless steel bolts are locked and connected to the anti-corrosion layer 300 of the adjacent skeleton components 110.

[0027] The conductive connection structure includes: a conductive connection belt 400 and at least two conductive connection components 200. The at least two conductive connection components 200 are respectively conductively fixed on the adjacent skeleton components 110 and are exposed outside the anti-corrosion layer 300. Since the conductive connection components 200 are exposed outside the anti-corrosion layer 300 and directly participate in the conductive connection with the skeleton components 110, a thicker anti-corrosion layer can be applied on the surface of the skeleton components, so as to further enhance the corrosion resistance of the entire drum-shaped rotary filter screen skeleton 100. At the same time, since the conductive connection components 200 are fixed on the skeleton components 110 after the manufacturer manufactures the skeleton components 110 and before applying the anti-corrosion layer 300, the original paint quality of the skeleton components 110 is ensured during the later installation and assembly at the construction site.

[0028] The conductive connection belt 400 in the present utility model is a conductor and has conductivity. The material of the conductive connection belt 400 needs to adopt a conductor material with good conductivity, strong anti-seawater corrosion ability, and certain anti-seawater impact ability. The conductive connection belt 400 is respectively conductively connected to the conductive connection components 200 on the adjacent two skeleton components 110, so that the adjacent skeleton components 110 are conductively spliced and connected, thereby solving the problem of poor conductivity caused by the isolation of the anti-corrosion layer 300 after the adjacent two skeleton components 110 are assembled. The installation quantity of the conductive connection components 200 on each group of skeleton components 110 is based on meeting the quantity of the adjacent skeleton components 110 that the skeleton components 110 need to connect.

[0029] Each group of skeleton components 110 eliminates the conduction obstruction of the anti-corrosion layer 300 with its conductive connection component 200 exposed outside the anti-corrosion layer 300. The adjacent conductive connection components 200 are conductively connected through a conductive connection band 400, thereby realizing the conductive connection between adjacent skeleton components 110. Finally, after several groups of skeleton components 110 are spliced, the overall conductive continuity of the drum-type rotating filter screen skeleton 100 is realized through several conductive connection structures.

[0030] Please refer to Figure 1 and Figure 2 ; In an example of the conductive connection structure of the present utility model, the conductive connection component 200 includes a conductive stud 210 and a locking nut 220; both the conductive stud 210 and the locking nut 220 are conductors. The conductive stud 210 is conductively fixed on the skeleton component 110; the conductive stud 210 is in direct metal contact with the skeleton component 110 to achieve conductive connection. A threaded structure is provided on the conductive stud 210, and the locking nut 220 is threadedly connected to the conductive stud 210 through the threaded structure on the conductive stud 210 to lock and fix the conductive connection band 400 on the conductive stud 210. In this embodiment, the materials of the conductive stud 210 and the locking nut 220 can be made of stainless steel. The stainless steel material has good electrical conductivity, corrosion resistance and structural strength, meeting the use requirements; the conductive stud 210 and the skeleton component 110 are connected by welding, so as to realize the metal contact between the conductive stud 210 and the skeleton component 110; after the welded conductive stud 210 is bagged by the manufacturer, the skeleton component 110 is then sprayed with paint to form the anti-corrosion layer 300 of the skeleton component 110, that is, the original paint layer, to avoid spraying paint on the conductive stud 210; during the on-site installation, commissioning and debugging in the later stage, there is no need to polish and repair the paint layer.

[0031] Please refer to Figure 4 , in an example of the conductive connection structure of the present utility model, since there are not all flat surfaces between adjacent skeleton components 110, when the conductive connection band 400 connects adjacent skeleton components 110, the conductive connection band 400 is erected and connected to the conductive studs 210 of adjacent skeleton components 110 and does not contact the skeleton components 110; by raising a certain height of the conductive stud 210 on the installation surface of the skeleton component 110, the conductive connection band 400 is installed overhead on two adjacent conductive studs 210, so as to avoid the conductive connection band 400 contacting the anti-corrosion layer 300 on the surface of the skeleton component 110, preventing the conductive connection band 400 from wearing the anti-corrosion layer 300 due to impact or vibration during subsequent installation, commissioning or use, and further causing the skeleton component 110 originally protected by the anti-corrosion layer 300 to contact seawater and cause corrosion.

[0032] In this embodiment, the conductive stud 210 includes a boss portion 211 and a threaded post 212. The boss portion 211 is welded to the skeleton component 110. The boss portion 211 is made of a stainless steel block. By selecting stainless steel blocks with different thicknesses, the height of the conductive connection strip 400 is set up to avoid contact wear with the corrosion-resistant layer 300 of the skeleton component 110. One end of the threaded post 212 is conductively fixed to the boss portion 211, and the conductive fixing method is welding to form a conductive connection. The conductive connection strip 400 is sleeved on the threaded post 212 and the locking nut 220 is screwed on to achieve the conductive fixing of the conductive stud 210 and the conductive connection strip 400. When spraying the paint layer, the threaded post 212 needs to be bagged to prevent the paint from being sprayed onto the threaded post 212 and affecting the conductivity with the conductive connection strip 400.

[0033] In another embodiment, a threaded hole is provided in the boss portion 211. One end of the threaded post 212 is threadedly connected to the threaded hole in the boss portion 211. Specifically, the boss portion 211 is formed by stacking and welding several stainless steel nuts to achieve height erection. The threaded post 212 is locked and connected to the stainless steel nut of the boss portion 211. When spraying the paint layer, only the threaded hole needs to be blocked.

[0034] Please refer to Figure 3 , in an example of the conductive connection structure of the present utility model, if the conductive connection components 200 of adjacent skeleton components 110 are at the same plane height, the conductive stud 210 can adopt a bolt head 213 and a bolt rod 214 of an integral structure, that is, a stainless steel bolt. The bolt head 213 made of stainless steel is welded and fixed to the skeleton component 110, which directly simplifies the complexity of component manufacturing, improves the production efficiency of the manufacturer, and the structural components are common, reducing the cost. The conductive connection strip 400 is sleeved on the bolt rod 214 and the locking nut 220 is screwed on to fix and connect the conductive connection strip 400 to the conductive stud 210.

[0035] Please refer to Figure 1 and Figure 2, in an example of the conductive connection structure of the present utility model, in order to ensure the installation stability and conductive stability of the conductive connection strip 400 on the conductive stud 210, a gasket 230 may also be provided. In this embodiment, the gasket 230 is made of a stainless steel gasket. The number of gaskets 230 is two groups. The two groups of gaskets 230 are both sleeved and installed on the threaded part of the conductive stud 210. The conductive connection strip 400 is clamped between the two groups of gaskets 230 and is locked and fixed on the conductive stud 210 by a lock nut 220. This can not only increase the conductive contact area between the conductive connection strip 400 and the conductive stud 210 to ensure current continuity, but also prevent the conductive connection strip 400 from being easily loosened after being directly locked by the nut during the installation and debugging process, or the sleeve hole of the conductive connection strip 400 at the connection with the conductive stud 210 being torn due to the vibration of the equipment during long-term operation, which affects conductive transmission.

[0036] Please refer to Figure 1 , in an example of the conductive connection structure of the present utility model, the conductive stud 210 is conductively fixed at the edge of the skeleton part 110 of the adjacent conductive connection part 200 close to it, so as to reduce the connection length of the conductive connection strip 400, reduce unnecessary material loss, and reduce the impact area of seawater during the operation of the equipment, and reduce the overall impact force on the conductive connection structure.

[0037] In an example of the conductive connection structure of the present utility model, the conductive connection strip 400 is made of stainless steel material, such as a stainless steel plate. Connection holes for sleeved connection with the conductive stud 210 are provided on the conductive connection strip 400 and are respectively sleeved and connected with the adjacent conductive studs 210.

[0038] The present utility model also provides a drum-type rotary filter, including: a drum-type rotary filter skeleton 100 and a drum-type filter. The drum-type rotary filter skeleton 100 is spliced and connected by several groups of skeleton parts 110 and is fixedly connected by stainless steel bolts or welded and fixed. It also includes the conductive connection structure of any one of the above. Adjacent skeleton parts 110 are spliced and conductively connected through the conductive connection structure, so as to ensure the corrosion resistance of the drum-type rotary filter skeleton 100 made of carbon steel structure in the original anti-corrosion layer 300 and the conductivity of the overall skeleton.

[0039] The above embodiments only illustratively explain the principles and effects of the present utility model, rather than limiting the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A conductive connection structure of a drum-type rotary filter frame, wherein the drum-type rotary filter frame is connected by splicing of a plurality of frame components, and the surface of the frame components has an anti-corrosion layer, characterized in that: The conductive connection structure comprises: At least two conductive connecting components, wherein at least two of the conductive connecting components are respectively conductively fixed to adjacent skeleton components and exposed outside the anti-corrosion layer; The conductive connecting belt is a conductor and is respectively conductively connected to the conductive connecting parts on two adjacent skeleton parts, so that the adjacent skeleton parts are conductively connected.

2. The conductive connection structure according to claim 1, characterized in that: The conductive connection component includes Conductive studs, the conductive studs are conductively fixed to the frame components; A locking nut is threadedly connected to the conductive stud to lock and fix the conductive connecting strip on the conductive stud.

3. The conductive connection structure according to claim 2, characterized in that: The conductive connection belt is mounted and connected to the conductive studs of the adjacent frame components and does not contact the frame components.

4. The conductive connection structure according to claim 3, characterized in that: The conductive stud comprises a boss portion, and the boss portion is welded and connected to the frame component; A threaded column, one end of which is conductively fixed on the boss portion, and a conductive connecting belt and a threaded locking nut are sleeved on the threaded column.

5. The conductive connection structure according to claim 4, characterized in that: The boss portion is provided with a threaded hole; one end of the threaded column is threadedly connected with the threaded hole on the boss portion.

6. The conductive connection structure according to claim 2, characterized in that: The conductive stud comprises a bolt head and a bolt rod of an integral structure. The bolt head is welded and fixed to the frame component. The bolt rod is sleeved with a conductive connecting belt and a threaded locking nut.

7. The conductive connection structure according to claim 2, characterized in that: The conductive connection component also includes a gasket, the conductive connection belt is sandwiched between at least two of the gaskets, and the gasket is locked and fixed on the conductive stud by a locking nut.

8. The conductive connection structure according to claim 2, characterized in that: The conductive stud is conductively fixed at an edge of a frame component adjacent to the conductive connecting component.

9. The conductive connection structure according to claim 2, characterized in that: The conductive connecting belt is made of stainless steel.

10. A drum type rotary filter comprising: A drum-type rotary filter skeleton and a drum-type filter, wherein the drum-type rotary filter skeleton is spliced ​​and connected by a plurality of groups of skeleton components; characterized in that it also includes a conductive connection structure as described in any one of claims 1 to 9, and adjacent skeleton components are conductively connected through the conductive connection structure.

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