A fault diagnosis device for large-scale phase modifier with multi-parameter monitoring

Abstract

The application discloses a fault diagnosis device for multi-parameter monitoring of a large phase modifier, which comprises a fault diagnosis shell, a locking assembly, a buckle part, a joint end, a wedge-shaped block, a lock part, a sliding groove, a guide rod, a limiting block and a spring.

Description

Technical Field

[0001] This invention relates to the technical field of fault diagnosis for large synchronous condensers, specifically to a fault diagnosis device for large synchronous condensers using multi-parameter monitoring. Background Technology

[0002] In a power system, a synchronous condenser maintains voltage and stability by providing or absorbing reactive power. Essentially, it is a synchronous motor (also known as a synchronous compensator) that operates as an electric motor without mechanical load.

[0003] Currently, large synchronous condensers are large in size, complex in structure, and have many components. In engineering sites, vibration data is generally used as the main diagnostic basis, which can easily lead to loosening of the wiring ports and reduce the stability of data transmission. There is an urgent need for an improved solution that integrates structure and function to improve the anti-loosening of wiring ports and the stability of transmission. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the fault diagnosis device of the large synchronous condenser mentioned above, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a fault diagnosis device for sealing, drying, and multi-parameter monitoring of large synchronous condensers.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A fault diagnosis device for large synchronous condensers using multi-parameter monitoring includes: A fault diagnosis housing, comprising a housing and a removable housing cover detachably connected to the housing; Locking assembly, located on the top side of the fault diagnosis housing, includes: The fastener includes a connector end, an insulating seat on the top side surface of the connector end, the connector end being engaged in the wiring port of the housing, and a wedge-shaped block on the bottom side surface of the connector end. The locking part includes a sliding groove provided on the inner wall of the housing, an adjustment groove provided on the top side surface of the housing, a guide rod provided in the sliding groove, with one end of the guide rod extending out of the sliding groove, a limiting block provided at the extended end of the guide rod, and a spring provided on the surface of the guide rod. The limiting block is adapted to the wedge block; A locking assembly is installed at the wiring port on the top side of the fault diagnosis housing to reliably fix the connector end inside the wiring port, ensuring stable information transmission and preventing transmission interruption. By snapping the connector end into the wiring port, during the insertion of the connector end into the wiring port, the wedge block fixedly connected to the side surface of the connector end squeezes the end of the limiting block away from the inner cavity of the wiring port. At the same time, the limiting block compresses the spring at the other end. The spring is limited by the guide rod to ensure stable compression of the spring in the axial direction. During the process of the wedge block disengaging from the limiting block, the spring reacts to the limiting block, and the limiting block then fits against the side surface of the connector end, with the bottom side of the limiting block fitting against the top side of the wedge block. This improves the anti-detachment effect of the connector end and solves the problem of abnormal detachment of the wiring port of large synchronous condensers, which affects the stability of data transmission.

[0008] As a preferred embodiment of the fault diagnosis device for large synchronous condensers described in this invention, the detachable cover includes a fixing seat fixed to the inner wall of the housing port, a limiting frame that fits against the fixing seat, connecting bolts for fixing the limiting frame and the fixing seat, a cover plate for closing the housing port, and a sealing ring for improving the sealing between the cover plate and the housing. The above structural design improves the sealing performance of the housing and enables quick opening and closing, facilitating inspection and maintenance.

[0009] As a preferred embodiment of the fault diagnosis device for a large synchronous condenser according to the present invention, the fault diagnosis housing is provided with a temperature monitoring module for collecting the temperature of the large synchronous condenser under diagnosis, a vibration monitoring module for collecting the vibration of the large synchronous condenser under diagnosis, a noise monitoring module for collecting the noise of the large synchronous condenser under diagnosis, and an electrical parameter monitoring module for collecting the electrical parameters of the large synchronous condenser under diagnosis; a processor for processing, a memory for storing information, and a controller for driving the warning light to emit a warning are disposed in the housing; and a display screen mounted on the surface of the cover plate for displaying the processor processing results; the processor is electrically connected to the controller, memory, display screen, temperature monitoring module, vibration monitoring module, noise monitoring module, and electrical parameter monitoring module respectively, and the controller is electrically connected to the warning light; wherein, the electrical parameters include current, voltage, and power.

[0010] As a preferred embodiment of the fault diagnosis device for large synchronous condensers described in this invention, the cover plate is provided with four connecting bolts on its front side, the ends of the connecting bolts passing through the housing and the limiting frame in sequence, and being threadedly connected to the surface of the connecting seat; the limiting frame is a square frame structure and is installed on the inner wall of the housing port in a sliding engagement manner.

[0011] As a preferred embodiment of the fault diagnosis device for large synchronous condensers described in this invention, wherein: The side surface of the fault diagnosis housing is provided with a dustproof and drying component; The dustproof drying assembly includes a drying filter frame, a placement shell disposed on the inner wall of the drying filter frame, a desiccant bag disposed in the placement shell, a sealing plate disposed on the side surface of the drying filter frame, an iron plate disposed on the contact surface between the sealing plate and the shell, a magnet disposed on the side surface of the shell, and a dustproof filter screen disposed on one side of the sealing plate. The sealing plate and the housing are in contact with each other. An iron plate is fixedly embedded in the sealing plate near the side surface of the housing. The iron plate is connected to the magnet block on its corresponding side by magnetic force.

[0012] As a preferred embodiment of the fault diagnosis device for a large synchronous condenser described in this invention, the following features are provided: two sealing plates are fixedly provided on the side surface of the drying filter frame, and the two sealing plates are fixedly connected by a dustproof filter, wherein the side view cross-sectional area of ​​the two sealing plates and the dustproof filter fixed between them is larger than the side view cross-sectional area of ​​the drying filter frame; two drying filter frames are provided, both of which slide through the side surface of the housing; a plurality of placement shells are fixed at equal intervals on the inner wall of the drying filter frame, and the placement shells are used to place desiccant bags.

[0013] In a preferred embodiment of the fault diagnosis device for large synchronous condensers described in this invention, the connector is electrically connected to the temperature monitoring module, vibration monitoring module, noise monitoring module, and electrical parameter monitoring module via connecting wires.

[0014] As a preferred embodiment of the fault diagnosis device for large synchronous condensers described in this invention, the wedge blocks are located on opposite sides of the bottom end of the connector, the wedge blocks have a right-angled triangular structure, the top side of the wedge blocks is in contact with the bottom side of the limiting block, the end of the limiting block near the connector end is inclined, and the other end of the limiting block is elastically connected to the inner wall of the sliding cavity of the limiting block through a spring sleeved on the surface of the guide rod.

[0015] As a preferred embodiment of the fault diagnosis device for large synchronous condensers described in this invention, the locking assembly further includes an adjusting block and a sliding plate disposed on the top surface of the adjusting block; the sliding plate is slidably connected to the top side surface of the housing, and the adjusting block is slidably connected to the inner cavity of the adjusting groove.

[0016] As a preferred embodiment of the fault diagnosis device for large synchronous condensers described in this invention, the end of the guide rod away from the limiting block is connected to the inner cavity of the sliding groove, and the distance between the end of the guide rod sliding in the groove and the other end of the groove is greater than the length of the limiting block extending into the inner cavity of the wiring port under the action of the spring.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention relates to a fault diagnosis device for multi-parameter monitoring of large synchronous condensers. A locking assembly is installed at the wiring port on the top side of the fault diagnosis housing to reliably fix the connector end within the wiring port, ensuring stable information transmission and preventing transmission interruptions. By engaging the connector end within the wiring port, during insertion, a wedge-shaped block fixedly connected to the side surface of the connector end compresses the end of a limiting block away from the inner cavity of the wiring port. Simultaneously, the limiting block compresses a spring at the other end. A guide rod limits the spring, ensuring stable axial compression. As the wedge-shaped block disengages from the limiting block, the spring reacts to the limiting block, causing it to adhere to the side surface of the connector end, with the bottom side of the limiting block adhering to the top side of the wedge-shaped block. This improves the anti-detachment effect of the connector end, solving the problem of abnormal detachment of the wiring port of a large synchronous condenser, which affects the stability of data transmission. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 is a schematic diagram of the front cross-sectional structure of the fault diagnosis device for multi-parameter monitoring of large synchronous condensers according to the present invention.

[0019] Figure 2 is a schematic diagram of the overall front structure of the fault diagnosis device for multi-parameter monitoring of large synchronous condensers according to the present invention.

[0020] Figure 3 is a schematic cross-sectional view of the connection structure between the shell cover and the cover plate of the fault diagnosis device for multi-parameter monitoring of large synchronous condensers according to the present invention.

[0021] Figure 4 is a cross-sectional view of the dust-proof drying component of the fault diagnosis device for multi-parameter monitoring of large synchronous condensers according to the present invention.

[0022] Figure 5 is a schematic diagram showing the connection between the sealing plate and the dust filter of the fault diagnosis device for multi-parameter monitoring of large synchronous condensers according to the present invention.

[0023] Figure 6 shows the overall structure of the fault diagnosis device for multi-parameter monitoring of large synchronous condensers according to the present invention. Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0024] Figure 7 is a schematic diagram of the connection structure between the limit block and the guide rod of the fault diagnosis device for multi-parameter monitoring of large synchronous condensers according to the present invention.

[0025] Figure 8 is a schematic diagram of the fault diagnosis principle of the fault diagnosis device for multi-parameter monitoring of large synchronous condensers according to the present invention.

[0026] In the diagram: 100, Fault diagnosis housing; 101, Housing; 101a, Sliding groove; 101b, Adjustment groove; 102, Removable cover; 102a, Fixing base; 102b, Limiting frame; 102c, Sealing ring; 102d, Connecting bolt; 102e, Cover plate; 103, Processor; 104, Memory; 105, Controller; 106, Warning light; 107, Temperature monitoring module; 108, Vibration monitoring module; 109, Noise monitoring module; 110, Electrical parameter monitoring module; 111, Display screen; 200. Dustproof drying assembly; 201. Sealing plate; 202. Dustproof filter; 203. Iron plate; 204. Magnet block; 205. Drying filter frame; 206. Desiccant bag; 207. Placement shell; 300. Locking assembly; 301. Connector end; 302. Insulating seat; 303. Wedge block; 304. Limiting block; 305. Spring; 306. Guide rod; 307. Adjusting block; 308. Slide plate. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] Example 1 Please see Figures 1 to 2 and Figures 6 to 7 This embodiment provides a fault diagnosis device for large synchronous condensers, including: The fault diagnosis housing 100 includes a housing 101 and a removable cover 102 that is detachably connected to the housing 101. Locking assembly 300, located on the top side of the fault diagnosis housing, includes: The fastener includes a connector end 301, an insulating seat 302 disposed on the top side surface of the connector end 301, the connector end 301 being engaged in the wiring port of the housing 101, and a wedge block 303 disposed on the bottom side surface of the connector end 301. The locking part includes a sliding groove 101a provided on the inner wall of the housing 101, an adjusting groove 101b provided on the top side surface of the housing 101, a guide rod 306 provided in the sliding groove, with one end of the guide rod 306 extending out of the sliding groove 101a, a limiting block 304 provided at the extended end of the guide rod 306, and a spring 305 provided on the surface of the guide rod 306.

[0032] The limiting block 304 is adapted to the wedge block 303; By engaging the connector end 301 within the wiring port, during the insertion of the connector end 301 into the wiring port, the wedge block 303 fixedly connected to the side surface of the connector end 301 presses the end of the limiting block 304 away from the inner cavity of the wiring port. Simultaneously, the limiting block 304 compresses the spring 305 at the other end. The guide rod 306 limits the spring 305, ensuring stable compression of the spring 305 in the axial direction. During the process of the wedge block 303 disengaging from the limiting block 304, the spring 305 reacts to the limiting block 304, causing the limiting block 304 to then adhere to the side surface of the connector end 301, with the bottom side of the limiting block 304 adhering to the top side of the wedge block 303, thus improving the anti-detachment effect of the connector end 301.

[0033] Specifically, the wedge block 303 is located on the left and right opposite sides of the bottom end of the connector end 301. The wedge block 303 has a right-angled triangular structure. The top side of the wedge block 303 is attached to the bottom side of the limiting block 304. The end of the limiting block 304 near the connector end 301 is inclined. The other end of the limiting block 304 is elastically connected to the inner wall of the sliding cavity of the limiting block 304 through a spring 305 sleeved on the surface of the guide rod 306. The locking assembly 300 also includes an adjusting block 307 and a sliding plate 308 provided on the top surface of the adjusting block 307. The sliding plate 308 is slidably connected to the top surface of the housing 101. The adjusting block 307 is slidably connected to the inner cavity of the adjusting groove 101b. The side surface of the limiting block 304 near the connector end 301 is inclined to facilitate the insertion of the connector end 301.

[0034] The end of the guide rod 306 away from the limiting block 304 is connected to the inner cavity of the slide groove, and the distance between the end of the guide rod 306 sliding in the slide groove and the other end of the slide groove is greater than the length of the limiting block 304 extending into the inner cavity of the wiring port under the action of the spring 305.

[0035] Operation process: By engaging the connector end 301 within the wiring port, during the insertion of the connector end 301 into the wiring port, the wedge block 303 fixedly connected to the side surface of the connector end 301 presses the end of the limiting block 304 away from the inner cavity of the wiring port. Simultaneously, the limiting block 304 compresses the spring 305 at the other end. The guide rod 306 limits the spring 305, ensuring stable compression of the spring 305 in the axial direction. During the disengagement of the wedge block 303 from the limiting block 304, the spring... The spring 305 reacts to the limiting block 304, which then fits against the side surface of the connector end 301. The bottom side of the limiting block 304 fits against the top side of the wedge block 303, improving the anti-detachment effect of the connector end 301. During the removal of the connector end 301, the sliding plate 308 drives the adjusting block 307 to move, and the adjusting block 307 drives the fixedly connected limiting block 304 to move. The limiting block 304 disengages from the surface of the connector end 301, making it easier to remove the connector end 301 for convenient use.

[0036] Example 2 Please see Figure 1-8 The removable cover 102 includes a fixing seat 102a fixed to the inner wall of the port of the housing 101, a limiting frame 102b that fits against the fixing seat 102a, a connecting bolt 102d for fixing the limiting frame 102b and the fixing seat 102a, a cover plate 102e for closing the port of the housing 101, and a sealing ring 102c for improving the sealing between the cover plate 102e and the housing 101; a dustproof drying assembly 200, which is disposed on the side surface of the fault diagnosis housing 100; and a locking assembly 300, which is disposed on the top side of the fault diagnosis housing 100. The cover plate 102e is detachable and can be fixedly installed with the housing 101, which facilitates quick and easy disassembly and assembly of the cover plate 102e and opening of the internal space of the housing 101, thereby enabling regular maintenance after the device is used and improving maintenance efficiency.

[0037] In this embodiment, the cover plate 102e and the housing 101 are detachable and fixedly installed, which facilitates the removal of the cover plate 102e and the opening of the housing 101. This allows workers to perform regular maintenance after using the fault diagnosis device, improving maintenance efficiency. The dustproof drying component 200 is installed on the left and right sides of the housing 101. The dustproof drying component 200 is set at the heat dissipation port of the housing 101 to facilitate the drying of the airflow passing through the heat dissipation port, thus ensuring the overall stability of the fault diagnosis housing 100. A locking component 300 is set at the wiring port on the top side of the fault diagnosis housing 100. The locking component 300 can stably fix the connector end 301 in the wiring port, ensuring stable information transmission and preventing information transmission interruption.

[0038] Specifically, the fault diagnosis housing 100 is equipped with a temperature monitoring module 107 for acquiring the temperature of the large synchronous condenser under diagnosis, a vibration monitoring module 108 for acquiring the vibration of the large synchronous condenser under diagnosis, a noise monitoring module 109 for acquiring the noise of the large synchronous condenser under diagnosis, and an electrical parameter monitoring module 110 for acquiring the electrical parameters of the large synchronous condenser under diagnosis; a processor 103 located inside the housing 101; a memory 104 located inside the housing 101 for information storage; a controller 105 for controlling the warning light 106; and a display screen 111 mounted on the surface of the housing for displaying the information processed by the processor 103; the processor 103, controller 105, memory 104, display screen 111, temperature monitoring module 107, vibration monitoring module 109, and noise monitoring module 100 are all included. Block 108, noise monitoring module 109, and electrical parameter monitoring module 110 are electrically connected, and controller 105 is electrically connected to warning light 106. The electrical parameters include current, voltage, and power. In fault diagnosis, vibration monitoring module 108 acquires vibration data of the large synchronous condenser being diagnosed, noise monitoring module 109 acquires noise data of the large synchronous condenser being diagnosed, and electrical parameter monitoring module 110 acquires electrical parameter data of the large synchronous condenser being diagnosed. The detected data is transmitted to processor 103 for processing, and the processed information is displayed on display screen 111. If there is any abnormality in the processed data, controller 105 controls warning light 106 to issue a warning, which is convenient for reminding workers. Fault is displayed on display screen 111.

[0039] Connector 301 is electrically connected to temperature monitoring module 107, vibration monitoring module 108, noise monitoring module 109 and electrical parameter monitoring module 110 via connecting wires, so that data information can be transmitted through connector 301 to the wiring port and then to processor 103.

[0040] Furthermore, four connecting bolts 102d are provided on the front side surface of the cover. The ends of the connecting bolts 102d penetrate the housing 101 and the limiting frame 102b, and the ends of the connecting bolts 102d are threaded to the surface of the connecting seat. The limiting frame 102b has a square frame structure and slides and engages with the inner wall of the port of the housing 101. In use, by removing the connecting bolts 102d, the operator can move the limiting frame 102b engaged at the port of the housing 101 through the cover plate 102e, which facilitates the opening of the inner cavity of the housing 101 and makes it convenient for the operator to carry out maintenance operations. In installation, the limiting frame 102b is engaged with the inner cavity of the port of the housing 101, the cover plate 102e is in contact with the surface of the port of the housing 101, and the connecting bolts 102d are rotated to fix the cover plate 102e, the limiting frame 102b and the connecting seat together. The cover plate 102e is also fixedly connected to the housing 101.

[0041] Operation process: By disassembling the connecting bolt 102d, the operator moves the limiting frame 102b, which is engaged at the port of the housing 101, out using the cover plate 102e. This facilitates opening the inner cavity of the housing 101 for maintenance. During installation, the limiting frame 102b is engaged in the inner cavity of the housing 101 port, and the cover plate 102e is in contact with the surface of the housing 101 port. By rotating the connecting bolt 102d, the cover plate 102e, the limiting frame 102b, and the connecting seat are fixedly connected. The cover plate 102e and the housing 101 are... The components are fixedly connected. During fault diagnosis, the vibration monitoring module 108 acquires the vibration data of the large synchronous condenser being diagnosed, the noise monitoring module 109 acquires the noise data of the large synchronous condenser being diagnosed, and the electrical parameter monitoring module 110 acquires the electrical parameter data of the large synchronous condenser being diagnosed. The detected data is transmitted to the processor 103 for processing, and the processed information is displayed on the display screen 111. If there is any abnormality in the processed data, the controller 105 controls the warning light 106 to issue a warning, which is convenient for reminding workers. The fault is displayed on the display screen 111.

[0042] Example 3 Reference Figures 1 to 2 and Figures 4 to 5 This embodiment differs from the first embodiment in that it provides a structure for convenient sealing and drying maintenance of the device, specifically by providing a dustproof drying component on the side surface of the fault diagnosis housing; The dustproof drying assembly 200 includes a drying filter frame 205, a placement shell 207 disposed on the inner wall of the drying filter frame 205, a desiccant bag 206 disposed inside the placement shell 207, a sealing plate 201 disposed on the side surface of the drying filter frame 205, an iron plate 203 disposed on the sealing plate 201 and attached to the surface of the shell 101, a magnet block 204 disposed on the side surface of the shell 101, and a dustproof filter 202 disposed on one side of the sealing plate 201. In this embodiment, the desiccant bag 206 is placed... In the housing 207, the drying filter frame 205 is operated through the sealing plate 201 to penetrate the side surface of the housing 101, ensuring that the drying filter frame 205 extends into the inner cavity of the housing 101. At the same time, the drying filter frame 205 is placed at the heat dissipation hole of the housing 101, and gas dust filtering is performed through the dust filter 202. The gas passing through is dried by the desiccant bag 206, ensuring that the environment inside the fault diagnosis housing 100 is dry and meeting the working environment requirements of the internal electrical components. Specifically, the sealing plate 201 is in contact with the housing 101. An iron plate 203 is fixedly embedded on the side surface of the sealing plate 201 near the housing 101. The iron plate 203 is magnetically connected to a magnet 204 on one side. When the sealing plate 201 is in contact with the housing 101, the iron plate 203 fixedly connected to the side surface of the sealing plate 201 is magnetically connected to the magnet 204 fixed on the surface of the housing 101, which improves the stability of the sealing plate 201 and thus ensures the stable placement of the dustproof drying assembly 200.

[0043] Furthermore, two sealing plates 201 are fixedly connected to the side surface of the drying filter frame 205. The two sealing plates 201 are fixedly connected to each other through a dust filter 202. The side cross-sectional area of ​​the two sealing plates 201 and the fixedly connected dust filter 202 is larger than the side cross-sectional area of ​​the drying filter frame 205. There are two drying filter frames 205. The two drying filter frames 205 slide through the side surface of the housing 101. Several equidistantly distributed placement shells 207 are fixedly installed on the inner wall of the drying filter frame 205. The placement shells 207 are used to place the desiccant bag 206.

[0044] Operation process: The drying filter frame 205 penetrates the side surface of the housing 101 through the sealing plate 201, ensuring that the drying filter frame 205 extends into the inner cavity of the housing 101. At the same time, the drying filter frame 205 is placed at the heat dissipation hole of the housing 101. The gas is filtered for dust through the dust filter 202, and the passing gas is dried by the desiccant bag 206, ensuring a dry environment inside the fault diagnosis housing 100 and meeting the working environment requirements of the internal electrical components. When the sealing plate 201 is attached to the housing 101, the iron plate 203 fixedly connected to the side surface of the sealing plate 201 is magnetically connected to the magnet block 204 fixed to the surface of the housing 101, improving the stability of the sealing plate 201 and thus ensuring the stable placement of the dustproof drying assembly 200. The magnetic connection also makes it easy to remove the dustproof drying assembly 200 by detaching the sealing plate 201 from the housing 101, facilitating the replacement of the desiccant bag 206 and the cleaning of the trapped dust.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged 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 not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fault diagnosis device for multi-parameter monitoring of large synchronous condensers, characterized in that, include: Fault diagnosis housing (100); Locking assembly (300) includes: The fastener includes a connector end (301) that engages with the wiring port of the fault diagnosis housing (100), and a wedge block (303) disposed on the bottom side surface of the connector end (301). The locking part includes a sliding groove (101a) formed in the inner wall of the fault diagnosis housing (100), a guide rod (306) provided in the sliding groove (101a), and one end of the guide rod (306) extending out of the sliding groove (101a), a limiting block (304) provided at the extended end of the guide rod (306) and adapted to the wedge block (303), and a spring (305) provided on the surface of the guide rod (306).

2. The fault diagnosis device for multi-parameter monitoring of large synchronous condensers as described in claim 1, characterized in that: The fault diagnosis housing (100) includes a housing (101) and a removable cover (102) detachably connected to the housing (101).

3. The fault diagnosis device for multi-parameter monitoring of large synchronous condensers as described in claim 2, characterized in that: The wiring port is located on the housing (101); The sliding groove (101a) is formed on the inner wall of the housing (101); An insulating seat (302) is provided on the top side surface of the connector end (301). The inner wall of the housing (101) is also provided with a sliding groove (101a), and the top side surface of the housing (101) is provided with an adjustment groove (101b).

4. The fault diagnosis device for multi-parameter monitoring of large synchronous condensers as described in claim 2, characterized in that: The removable cover (102) includes a fixing seat (102a) fixed to the inner wall of the port of the housing (101), a limiting frame (102b) that fits against the fixing seat (102a), a connecting bolt (102d) for fixing the limiting frame (102b) and the fixing seat (102a), a cover plate (102e) for closing the port of the housing (101), and a sealing ring (102c) for improving the sealing between the cover plate (102e) and the housing (101).

5. The fault diagnosis device for multi-parameter monitoring of large synchronous condensers as described in claim 4, characterized in that: The cover plate (102e) has four connecting bolts (102d) on its front side surface. The ends of the connecting bolts (102d) penetrate the housing (101) and the limiting frame (102b), and the ends of the connecting bolts (102d) are threaded to the surface of the connecting seat. The limiting frame (102b) has a square frame structure and is slidably engaged with the inner wall of the port of the housing (101).

6. The fault diagnosis device for multi-parameter monitoring of large synchronous condensers as described in claim 1, characterized in that: The fault diagnosis housing (100) is provided with a dustproof drying component (200) on its side surface. The dustproof drying assembly (200) includes a drying filter frame (205), a placement shell (207) disposed on the inner wall of the drying filter frame (205), a desiccant bag (206) disposed in the placement shell (207), a sealing plate (201) disposed on the side surface of the drying filter frame (205), an iron plate (203) disposed on the sealing plate (201) and attached to the surface of the housing (101), a magnet block (204) disposed on the side surface of the housing (101), and a dustproof filter (202) disposed on one side of the sealing plate (201). The sealing plate (201) is in contact with the housing (101) and an iron plate (203) is fixedly embedded on the side surface of the sealing plate (201) near the housing (101). The iron plate (203) is magnetically connected to a magnet block (204) provided on one side.

7. The fault diagnosis device for multi-parameter monitoring of large synchronous condensers as described in claim 6, characterized in that: Two sealing plates (201) are fixedly connected to the side surface of the drying filter frame (205). The two sealing plates (201) are fixedly connected to each other by a dust filter (202). The side cross-sectional area of ​​the two sealing plates (201) and the fixedly connected dust filter (202) is larger than the side cross-sectional area of ​​the drying filter frame (205). The number of the drying filter frames (205) is two, and the two drying filter frames (205) slide through the side surface of the housing (101). Several equally spaced placement shells (207) are fixedly installed on the inner wall of the drying filter frames (205). The placement shells (207) are used to place the desiccant bag (206).

8. The fault diagnosis device for multi-parameter monitoring of large synchronous condensers as described in claim 1, characterized in that: The wedge block (303) is located on the left and right opposite sides of the bottom end of the connector end (301). The wedge block (303) has a right-angled triangular structure. The top side of the wedge block (303) is attached to the bottom side of the limiting block (304). The end of the limiting block (304) near the connector end (301) is inclined. The other end of the limiting block (304) is elastically connected to the inner wall of the sliding cavity of the limiting block (304) through a spring (305) sleeved on the surface of the guide rod (306).

9. The fault diagnosis device for multi-parameter monitoring of large synchronous condensers as described in claim 1, characterized in that: The locking assembly (300) also includes an adjusting block (307) and a sliding plate (308) disposed on the top surface of the adjusting block (307). The sliding plate (308) is slidably connected to the top surface of the housing (101), and the adjusting block (307) is slidably connected to the inner cavity of the adjusting groove (101b).

10. The fault diagnosis device for multi-parameter monitoring of large synchronous condensers as described in claim 6, characterized in that: The end of the guide rod (306) away from the limiting block (304) is connected to the inner cavity of the sliding groove, and the distance between the end of the guide rod (306) sliding in the sliding groove and the other end of the sliding groove is greater than the length of the limiting block (304) extending into the inner cavity of the wiring port under the action of the spring (305).

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