WO2024066886A1

WO2024066886A1 - Power plant grounding structure facilitating inspection and repair, and concrete protection apparatus

Info

Publication number: WO2024066886A1
Application number: PCT/CN2023/115838
Authority: WO
Inventors: 郭欣彤; 赵巍; 佟飞; 苏芃
Original assignee: 华能伊敏煤电有限责任公司
Priority date: 2022-09-26
Filing date: 2023-08-30
Publication date: 2024-04-04
Also published as: CN218827874U

Abstract

A power plant grounding structure facilitating inspection and repair, and a concrete protection apparatus. An embodiment comprises a fixing assembly (100) and a grounding assembly (200); the fixing assembly (100) comprises a fixing base (101); a tightening rotating shaft (103) is arranged at an upper end of the fixing base (101), and a plurality of engagement rotating bases (102) are rotatably mounted on the tightening rotating shaft (103); a T-shaped wire engagement slot (104) is formed on a side wall of each engagement rotating base (102), and an insertion slot (105) is provided at one end of each T-shaped wire engagement slot (104); a ratchet tightener (106) is arranged at a front end of each engagement rotating base (102); and the grounding assembly (200) comprises a grounding base (201). By means of the ratchet tighteners (106), the engagement rotating bases (102) are rotated, a power plant grounding wire and a bent grounding connection wire (204) are pulled taut, installation is facilitated, a joining effect can be ensured without welding, and subsequent maintenance is facilitated.

Description

A grounding structure and concrete protection device for power plants that are easy to maintain

Technical Field

The utility model relates to the technical field of power plant power engineering, in particular to a grounding structure and a concrete protective device for a power plant which are convenient for maintenance.

Background technique

In the power engineering system of a power plant, grounding is an important measure to protect people and ensure the normal operation of electrical equipment. The grounding system has a significant impact on the stable, safe and reliable operation of the power plant. The grounding of a power plant is generally divided into protective grounding, lightning protection grounding, anti-static grounding, working and system grounding. The principle of these grounding methods is to conduct the current generated by various overvoltages into the earth through the grounding device through the grounding conductor, thereby achieving the purpose of protecting people and ensuring the normal operation of electrical equipment.

The traditional way of connecting wires is mostly to weld them to the conductive rods and then insert the conductive rods into the ground. This method is not convenient for removing the connecting wires, and a spot welder is required for installation, which is cumbersome and complicated to operate. At the same time, most conductive rods are directly buried under the concrete pavement, which is also inconvenient for maintenance. For this reason, we propose a power plant grounding structure and concrete protection device that is easy to maintain.

Utility Model Content

The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

In view of the above problems and/or the problems existing in the prior art, the present utility model is proposed.

Therefore, the technical problem to be solved by the utility model is that the existing power plant grounding device is inconvenient to install and disassemble, and is not convenient for maintenance.

In order to solve the above technical problems, the utility model provides the following technical solutions: a power plant grounding structure that is easy to maintain, comprising: a fixing assembly, wherein the fixing assembly comprises a fixing base, a tightening shaft is arranged at the upper end of the fixing base, and a plurality of clamping rotating seats are rotatably mounted on the tightening rotating shaft, a T-shaped clamping groove is provided on the side wall of each clamping rotating seat, and an insertion groove is provided at one end of the T-shaped clamping groove, and a ratchet tightener is provided at the front end of each clamping rotating seat; and

The grounding assembly comprises a grounding seat, a grounding conductive block is embedded in the grounding seat, a conductive rod is welded at the center of the lower end of the grounding conductive block, a plurality of grounding connecting wires are welded at the upper end of the grounding conductive block corresponding to a plurality of card-connecting rotating seats, and the upper end of each grounding connecting wire is fixedly connected to a matching card. piece.

As a preferred solution of the power plant grounding structure that is easy to maintain described in the utility model, the size of the matching card block matches the insertion slot, and the diameter of the grounding connection line matches the width of the outer end opening of the T-shaped card slot.

As a preferred solution of the power plant grounding structure that is easy to maintain as described in the utility model, the ratchet tightener includes a ratchet seat and a ratchet body, the ratchet seat is key-connected and fixed to the outside of the tightening shaft, and an elastic pawl is provided at the front end of the side wall of the ratchet seat, the ratchet body is fixedly connected to the side of the ratchet seat inner cavity, and the ratchet body corresponds to the position of the elastic pawl.

As a preferred solution of the power plant grounding structure that is easy to maintain as described in the utility model, the elastic pawl includes a pawl sleeve, and a pawl slider is inserted into the inner side of the pawl sleeve, and the pawl slider is provided with a pawl insertion end matching the ratchet body on the side facing the ratchet body, a pawl pull rod is fixedly connected to the outer center of the pawl slider, and a pawl spring is sleeved on a section of the outer wall of the pawl pull rod corresponding to the inner cavity of the pawl sleeve.

As a preferred solution of the power plant grounding structure that is easy to maintain described in the utility model, wherein: the pawl slider is a rectangular parallelepiped structure, and the pawl pull rod passes through the pawl sliding sleeve and is fixedly connected to the pawl handle.

As a preferred solution of the power plant grounding structure that is easy to maintain described in the utility model, wherein: a plurality of tightening sockets are opened at one end of the outer wall of the clamping swivel seat away from the ratchet tightener, and the plurality of tightening sockets are arranged in a ring array.

As a preferred solution of the power plant grounding structure that is easy to maintain described in the utility model, the conductive rod is a galvanized steel pipe, and the grounding connecting wire is a galvanized flat steel.

The beneficial effects of the utility model are as follows: the power plant grounding device fully contacts the conductor through the fixing assembly and the grounding assembly to ensure the grounding effect; the grounding wire is gradually tightened by the agitation and loosening of the ratchet tightener to facilitate the installation of the grounding wire; the bonding effect can be ensured without welding, which is convenient for subsequent maintenance

In view of the fact that most of the existing methods for protecting power connection devices are to weld the connection wires to the conductive rods, and the conductive rods are directly buried under the concrete pavement, which is inconvenient for maintenance, a concrete protective device for the grounding structure of a power plant that is easy to maintain is proposed.

In order to solve the above technical problems, the utility model also provides the following technical solutions: comprising a power plant grounding structure that is easy to maintain as described in any one of the claims; and,

The protective component includes a concrete base, the bottom of the fixing component is buried in the concrete base, and the upper end of the concrete base is provided with a concrete base corresponding to the outer side of the fixing component and the grounding component. Concrete enclosure, and a protective top cover is inserted at the upper end of the concrete enclosure.

As a preferred solution of the concrete protective device for the grounding structure of a power plant which is easy to maintain as described in the utility model, a top cover clamping edge is provided at the upper end of the inner wall of the concrete enclosure, and clamping grooves matching the top cover clamping edge are provided at both ends of the protective top cover, and a plurality of fixed plug rods are provided at the bottom center of the protective top cover, and the plurality of fixed plug rods are inserted one by one into the upward tightening sockets.

As a preferred solution of the concrete protective device for the grounding structure of a power plant which is easy to maintain as described in the utility model, wherein: the concrete enclosure and the top cover edge are embedded with enclosure reinforcement bars, and the protective top cover is embedded with top cover embedded bars, and the upper end of the fixed plug rod is welded and fixed to the top cover embedded bars.

The beneficial effects of the utility model are as follows: the periphery of the fixed component and the grounding component is maintained by concrete enclosure, and the grounding wire can be loosened due to failure of the ratchet tightener through the plug-in cooperation with the set fixing rod and the tightening socket, thereby facilitating the improvement of the stability of the grounding wire fixation, and the structural strength of the concrete enclosure and the protective top cover is improved by the set enclosure reinforcement embedded reinforcement and top cover embedded reinforcement.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

FIG1 is a schematic diagram of the three-dimensional structure of a power plant grounding structure that is easy to maintain according to the utility model;

FIG2 is a schematic diagram of the side cross-sectional structure of the T-shaped wire slot of the power plant grounding structure that is easy to repair according to the utility model;

FIG3 is a schematic diagram of the side section structure of the ratchet tightener in the power plant grounding structure that is easy to repair according to the utility model;

FIG4 is an enlarged schematic diagram of the structure of point A in FIG3 of the present invention;

FIG5 is a schematic diagram of the side section structure of the tightening socket in the utility model;

FIG6 is a schematic diagram of the side section structure of the concrete protection device in the present invention.

Detailed ways

In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Similar promotions can be made without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

Example 1

1-5, the present embodiment provides a power plant grounding structure that is easy to maintain, including a fixing component 100 and a grounding component 200, the fixing component 100 includes a fixing base 101, a tightening shaft 103 is provided at the upper end of the fixing base 101, and a plurality of snap-in seats 102 are rotatably mounted on the tightening shaft 103, each of the side walls of the snap-in seats 102 is provided with a T-shaped wire slot 104, and an insertion slot 105 is provided at one end of the T-shaped wire slot 104, a ratchet tightener is provided at the front end of each snap-in seat 102, a plurality of tightening sockets 108 are provided at one end of the outer wall of the snap-in seat 102 away from the ratchet tightener, and the plurality of tightening sockets 108 are arranged in a circular array, the arrangement of the tightening sockets 108 facilitates the external insertion of a pull rod, and the snap-in seat 102 is pulled to rotate, making the operation of the snap-in seat 102 more labor-saving. The grounding assembly 200 includes a grounding seat 201, in which a grounding conductive block 202 is buried, and a conductive rod 203 is welded at the center of the lower end of the grounding conductive block 202, and the upper end of the grounding conductive block 202 corresponds to a plurality of grounding connecting wires 204 welded to the plurality of clamping rotating seats 102, and the upper end of each grounding connecting wire 204 is fixedly connected with a matching clamping block 205, the conductive rod 203 is a galvanized steel pipe, and the grounding connecting wire 204 is a galvanized flat steel, the galvanized steel pipe and the galvanized flat steel can fully meet the needs of grounding and conduction, the size of the matching clamping block 205 matches the insertion slot 105, and the diameter of the grounding connecting wire 204 matches the width of the outer end opening of the T-shaped clamping slot 104, so that the grounding connecting wire 204 and the matching clamping block 205 can be inserted into the T-shaped clamping slot 104 through the insertion slot 105, and the clamping contact is tighter.

The present invention provides a fixing assembly 100, which can be provided with a T-shaped wire slot 104 and an insertion slot 105. The bottom of the power plant grounding wire is connected with a limiting structure identical to the matching clamping block 205. The grounding connection wire 204 and the power plant grounding wire are inserted into the T-shaped wire slot 104 in turn. By means of the provided clamping swivel 102 and the ratchet tightener, the clamping swivel 102 is rotated to move the grounding connection wire 204 and the power plant grounding wire to one side of the T-shaped wire slot 104 away from the insertion slot 105, and the power plant grounding wire is tightened to fully contact the bent grounding connection wire 204 to ensure the grounding effect. By agitating and loosening the ratchet tightener, the grounding wire is gradually tightened to facilitate the installation of the grounding wire. The bonding effect can be ensured without welding, which is convenient for subsequent maintenance.

Example 2

1-5, a second embodiment of the present invention is shown, which is based on the previous embodiment and is different from the previous embodiment in that the ratchet tightener 106 includes a ratchet seat 106a and a ratchet body 106b, the ratchet seat 106a is key-connected and fixed to the outside of the tightening shaft 103, and an elastic pawl 107 is provided at the front end of the side wall of the ratchet seat 106a, and the ratchet body 106b is fixedly connected to the side of the ratchet seat 106a facing the inner cavity of the ratchet seat 106a, and the ratchet body 106b corresponds to the position of the elastic pawl 107, and the elastic pawl 107 is provided. 7 cooperates with the ratchet body 106b, so that the insertion slot 105 can only rotate toward the side away from the ground connection line 204, and the ground connection line 204 is clamped into the T-shaped clamping slot 104 and pressed. The structure is simple and easy to use. The elastic pawl 107 includes a pawl sliding sleeve 107a, and a pawl slider 107b is inserted into the inner side of the pawl sliding sleeve 107a. The pawl slider 107b is provided with a pawl insertion end 107f matching the ratchet body 106b on the side facing the ratchet body 106b. The outer center of the pawl slider 107b is fixedly connected to a pawl pull rod 107c, and the pawl The outer wall of the pull rod 107c corresponds to a section of the inner cavity of the ratchet sleeve 107a, and a ratchet spring 107d is sleeved thereon. The ratchet slider 107b is a rectangular parallelepiped structure, and the ratchet pull rod 107c passes through the ratchet sleeve 107a and is fixedly connected to a ratchet handle 107e. Through the cooperation between the ratchet slider 107b and the ratchet sleeve 107a, the ratchet slider 107b can slide along the inner cavity of the ratchet sleeve 107a. Through the setting of the ratchet pull rod 107c, the inner end of the ratchet slider 107b is pressed toward the ratchet body 106b, so that the ratchet insertion end 107f is stuck in the ratchet body 1 In the convex teeth on the side wall of 06b, the slope structure at the inner end of the pawl insertion end 107f is used to limit the rotation direction of the ratchet body 106b, thereby realizing the tightening function. The rectangular structure of the pawl slider 107b is set so that the pawl slider 107b will not rotate in the pawl sleeve 107a, thereby ensuring that the direction of the slope structure at the inner end of the pawl insertion end 107f is fixed. The pawl pull rod 107c and the pawl handle 107e are set, so that the user can manually pull the pawl slider 107b to release the ratchet body 106b for easy removal of the grounding wire and maintenance.

Example 3

6 , a concrete protective device for a grounding structure of a power plant which is easy to maintain includes a fixing component 100 and a grounding component 200, and a protective component 300. The protective component 300 includes a concrete base 301. The bottom of the fixing component 100 is buried in the concrete base 301. A concrete enclosure 302 is arranged at the upper end of the concrete base 301 corresponding to the outer sides of the fixing component 100 and the grounding component 200. A protective top cover 304 is inserted at the upper end of the concrete enclosure 302, and a top cover embedded reinforcement 306 is embedded in the protective top cover 304. A top cover clamping edge 305 is arranged at the upper end of the inner wall of the concrete enclosure 302, and slots matching the top cover clamping edge 305 are arranged at both ends of the protective top cover 304. Enclosure reinforcement embedded reinforcement 303 is embedded in the concrete enclosure 302 and the top cover clamping edge 305. A plurality of fixed plug rods 307 are arranged at the bottom center of the protective top cover 304, and the plurality of fixed plug rods 307 are arranged at the bottom center of the protective top cover 304. 307 are inserted one by one into the upward tightening socket 108, and the upper end of the fixed rod 307 is welded and fixed to the top cover embedded reinforcement 306. The sealed base is formed by the set concrete base 301, and the surrounding of the fixed component 100 and the grounding component 200 are maintained by the concrete enclosure 302. Through the set fixed rod 307, the plug-in cooperation between the fixed rod 307 and the tightening socket 108 can prevent the grounding wire from being loosened due to the failure of the ratchet tightener, which is convenient for improving the stability of the grounding wire fixation. The structural strength of the concrete enclosure 302 and the protective top cover 304 is improved by the set enclosure reinforcement embedded reinforcement 303 and the top cover embedded reinforcement 306.

Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values (e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present utility model, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the utility model. The spirit and scope of the new technical solution should be included in the scope of the claims of this utility model.

Claims

A power plant grounding structure that is easy to maintain, characterized in that it includes:

A fixing assembly (100), the fixing assembly (100) comprising a fixing base (101), the upper end of the fixing base (101) being provided with a tightening shaft (103), and a plurality of clamping rotating seats (102) being rotatably mounted on the tightening shaft (103), the side wall of each clamping rotating seat (102) being provided with a T-shaped clamping groove (104), and one end of the T-shaped clamping groove (104) being provided with an insertion groove (105), and the front end of each clamping rotating seat (102) being provided with a ratchet tightener (106); and,

A grounding assembly (200), the grounding assembly (200) comprising a grounding seat (201), a grounding conductive block (202) embedded in the grounding seat (201), a conductive rod (203) welded to the center of the lower end of the grounding conductive block (202), a plurality of grounding connecting wires (204) welded to the upper end of the grounding conductive block (202) corresponding to a plurality of clamping rotating seats (102), and a matching clamping block (205) fixedly connected to the upper end of each grounding connecting wire (204).
The power plant grounding structure that is easy to maintain according to claim 1 is characterized in that the size of the matching block (205) matches the insertion slot (105), and the diameter of the grounding connection line (204) matches the width of the outer end opening of the T-shaped wire slot (104).
The power plant grounding structure that is easy to maintain according to claim 1 is characterized in that: the ratchet tightener includes a ratchet seat (106a) and a ratchet body (106b), the ratchet seat (106a) is key-connected and fixed to the outside of the tightening shaft (103), and an elastic pawl (107) is provided at the front end of the side wall of the ratchet seat (106a), and the ratchet body (106b) is fixedly connected to the side of the inner cavity of the ratchet seat (106a) of the snap-fit rotating seat (102), and the ratchet body (106b) corresponds to the position of the elastic pawl (107).
According to the power plant grounding structure that is easy to maintain as described in claim 3, it is characterized in that: the elastic pawl (107) includes a pawl sleeve (107a), and a pawl slider (107b) is inserted into the inner side of the pawl sleeve (107a), and the pawl slider (107b) is provided with a pawl insertion end (107f) matching the ratchet body (106b) on the side facing the ratchet body (106b), and a pawl pull rod (107c) is fixedly connected to the outer center of the pawl slider (107b), and a pawl spring (107d) is sleeved on the outer wall of the pawl pull rod (107c) corresponding to a section of the inner cavity of the pawl sleeve (107a).
The power plant grounding structure that is easy to maintain according to claim 4 is characterized in that the pawl slider (107b) is a rectangular parallelepiped structure, and the pawl pull rod (107c) passes through the pawl sliding sleeve (107a) and is fixedly connected to the pawl handle (107e).
The power plant grounding structure that is easy to maintain according to claim 5 is characterized in that: a plurality of tightening holes (108) are provided on the end of the outer wall of the clamping rotating seat (102) away from the ratchet tightener, and the plurality of tightening holes (108) are provided on the outer wall of the clamping rotating seat (102) away from the ratchet tightener. The tightening sockets (108) are arranged in a circular array.
The power plant grounding structure that is easy to maintain according to claim 1 is characterized in that the conductive rod (203) is a galvanized steel pipe, and the grounding connecting wire (204) is a galvanized flat steel.
A concrete protective device for a power plant grounding structure that is easy to maintain, characterized in that: it comprises the power plant grounding structure that is easy to maintain as described in any one of claims 1 to 7; and

A protection component (300) includes a concrete base (301), the bottom of the fixing component (100) is buried in the concrete base (301), the upper end of the concrete base (301) is provided with a concrete enclosure (302) corresponding to the outer sides of the fixing component (100) and the grounding component (200), and the upper end of the concrete enclosure (302) is inserted with a protection top cover (304).
According to the concrete protective device for the grounding structure of a power plant that is easy to maintain as described in claim 8, it is characterized in that: a top cover clamping edge (305) is provided at the upper end of the inner wall of the concrete enclosure (302), and clamping grooves matching the top cover clamping edge (305) are provided at both ends of the protective top cover (304), and a plurality of fixed plug rods (307) are provided at the bottom center of the protective top cover (304), and the plurality of fixed plug rods (307) are inserted one by one into the upward tightening socket (108).
The concrete protective device for a power plant grounding structure that is easy to maintain according to claim 9 is characterized in that: the concrete enclosure (302) and the top cover edge (305) are embedded with enclosure reinforcement embedded bars (303), and the protective top cover (304) is embedded with top cover embedded bars (306), and the upper end of the fixed plug rod (307) is welded and fixed to the top cover embedded bars (306).