Alarm device for power supply cabinet of power plant

Abstract

The utility model relates to the technical field of power supply monitoring alarm equipment, in particular to an alarm device for a power supply cabinet of a power plant, which comprises a power supply cabinet body and is characterized in that the front surface of the power supply cabinet body is rotatably connected with a cabinet door through a hinge, and one side of the inner wall of the power supply cabinet body is provided with a mounting frame; the alarm assembly is arranged in the power supply cabinet body, the alarm assembly comprises a mounting box, a first side plate, a second side plate, a top plate, a guide pipe and a side block, the mounting box is arranged in the power supply cabinet body, and the first side plate and the second side plate are arranged on the front surface and the rear surface of the mounting box respectively; the problems that when any path of power supply disappears, a worker cannot quickly identify and detect the disappeared power supply, so that the whole equipment needs to be shut down, then the power supply is checked, the working efficiency of the equipment is reduced, and the working intensity of the worker is increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply monitoring and alarm equipment, in particular to an alarm device used for a power supply cabinet of a power plant. Background Art

[0002] A power cabinet, also called an electric control cabinet, is a device used in a power distribution system. It refers to a combination of electrical control cabinets that provide power for the normal operation of the entire machine, including contactors, frequency converters, high-voltage cabinets, transformers, etc., as well as basic components such as incoming lines, instruments, circuit breakers, and disconnectors. The main function of the power cabinet is to provide stable power for various electrical equipment, lighting equipment, etc. The power cabinet is large in size, has many internal devices, and the control of power equipment is relatively complex. Due to its wide application and importance, the design and manufacture of the power cabinet needs to take into account many factors, including the stability, safety, reliability, and ease of maintenance of the power supply.

[0003] At present, as the core hub of power supply, the stable operation of power plant equipment is directly related to the safety and stability of the entire power system. The power cabinets of important equipment in power plants generally adopt dual power supply configuration. When the main power supply fails due to various reasons, the backup power supply can be timely connected through the fast switching device to ensure that the power-consuming equipment is almost unaffected during the power switching process, thereby achieving uninterrupted power supply. However, when any power supply disappears, the staff cannot quickly identify and detect the missing power supply, which causes the entire equipment to shut down and then check the power supply, resulting in reduced equipment working efficiency and increased work intensity for staff. Utility Model Content

[0004] The purpose of the utility model is to provide an alarm device for a power supply cabinet of a power plant to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an alarm device for a power supply cabinet in a power plant, comprising a power supply cabinet body, and also comprising: a cabinet door is rotatably connected to the front surface of the power supply cabinet body through a hinge, and a mounting frame is provided on one side of the inner wall of the power supply cabinet body; an alarm component, the alarm component is arranged inside the power supply cabinet body, the alarm component comprises an installation box, a first side panel, a second side panel, a top panel, a guide tube and a side block, an installation box is arranged inside the power supply cabinet body, the front and rear surfaces of the installation box are respectively provided with a first side panel and a second side panel, a top panel is arranged on the top of the installation box, the insides of the first side panel and the second side panel are both fixedly connected with guide tubes, a side of the installation box is fixedly connected with a side block, and a voltage detection device body is arranged inside the installation box.

[0006] Preferably, positioning bolts are provided inside the first side plate, the second side plate and the top plate, and cooling fans are fixedly connected to both sides of the inner wall of the installation box.

[0007] Preferably, a pull rod is slidably connected to the inside of the guide tube, a first spring is sleeved on the outside of the pull rod, and an arc plate is fixedly connected to the bottom of the pull rod.

[0008] Preferably, one end of the first spring is welded to the outer side of the pull rod, the other end of the first spring is welded to the outer side of the guide tube, and a vent is provided inside the top plate.

[0009] Preferably, both sides of the inner wall of the installation box are fixedly connected with connecting pipes, and the interior of the connecting pipes is rotatably connected with elastic balls.

[0010] Preferably, the top and the bottom of the mounting frame are fixedly connected with positioning plates, the interior of the positioning plates is provided with fixing bolts, and the interior of the mounting frame is rotatably connected with a rotating rod.

[0011] Preferably, a first gear is fixedly connected to the outer side of the rotating rod, and a second gear is meshingly connected to the outer side of the first gear.

[0012] Preferably, the inner ring of the second gear is fixedly connected with a transmission tube, the inner thread of the transmission tube is connected with a moving rod, and the inside of the side block is provided with a through hole used in conjunction with the moving rod.

[0013] Preferably, one end of the rotating rod is fixedly connected to a connecting head, and one side of the inner wall of the mounting frame is welded with a second spring.

[0014] Preferably, a movable plate is welded to one end of the second spring, the top and bottom of the movable plate are fixedly connected to fixing bars, and a sliding groove for use with the fixing bar is provided inside the mounting frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model sets a voltage detection device body, and the voltage detection device body needs to lead a group of cables from the lower port of the double-way main power circuit breaker of each cabinet that needs to be monitored for power failure to the device, and judges whether the power is lost through voltage detection. If the power is lost, a corresponding power failure alarm signal is sent and transmitted to the DCS control system, and the corresponding cabinet power failure information is displayed on the operator CRT through logical operation, and an audible and visual alarm is triggered, so that the operation duty personnel notice the alarm information at the first time, so that the voltage detection device body can be used for including but not limited to power cabinets, power boxes and other equipment that need power monitoring, and can be widely used in various fields, and the practicality of the device is improved. By setting an alarm component, under the action of the mounting frame, the side block and the mounting box, the staff can position and install the mounting frame, and then position and place the mounting box, so that the voltage detection device body can be quickly installed and disassembled, so that voltage detection can be performed on various equipment that need to be monitored for power supply, and the problem that when any power supply disappears, the staff cannot quickly identify and detect the disappeared power supply, so that the overall equipment needs to be shut down, and then the power supply is checked, resulting in reduced equipment work efficiency and increased staff work intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of an alarm device for a power supply cabinet in a power plant provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the structural connection of the alarm component of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the installation box of the utility model;

[0020] Figure 4 This is a schematic diagram of the structural connection between the mounting frame and the mounting box of the utility model;

[0021] Figure 5 It is a schematic diagram of the structural connection between the mounting frame and the movable plate of the utility model.

[0022] In the figure: 1. power cabinet body; 2. cabinet door; 3. mounting bracket; 4. alarm component; 41. mounting box; 42. first side panel; 43. second side panel; 44. top panel; 45. guide tube; 46. side block; 5. voltage detection device body; 6. positioning bolt; 7. cooling fan; 8. pull rod; 9. first spring; 10. arc plate; 11. connecting pipe; 12. elastic ball; 13. vent; 14. positioning plate; 15. fixing bolt; 16. rotating rod; 17. first gear; 18. second gear; 19. transmission tube; 20. moving rod; 21. through hole; 22. connector; 23. second spring; 24. moving plate; 25. fixing strip; 26. slide groove. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] See also Figure 1-5 As shown, an alarm device for a power supply cabinet of a power plant comprises a power supply cabinet body 1, and further comprises: a cabinet door 2 is rotatably connected to the front surface of the power supply cabinet body 1 through a hinge, and a mounting frame 3 is arranged on one side of the inner wall of the power supply cabinet body 1;

[0025] The alarm component 4 is arranged inside the power cabinet body 1. The alarm component 4 includes a mounting box 41, a first side plate 42, a second side plate 43, a top plate 44, a guide tube 45 and a side block 46. The power cabinet body 1 is provided with a mounting box 41 inside. The front surface and the rear surface of the mounting box 41 are respectively provided with the first side plate 42 and the second side plate 43. The top plate 44 is provided on the top of the mounting box 41. The first side plate 42 and the second side plate 43 are both fixedly connected with the guide tube 45 inside. The side block 46 is fixedly connected to one side of the mounting box 41. The voltage detection device body 5 is provided inside the mounting box 41.

[0026] Positioning bolts 6 are disposed inside the first side plate 42 , the second side plate 43 and the top plate 44 , and cooling fans 7 are fixedly connected to both sides of the inner wall of the installation box 41 .

[0027] A pull rod 8 is slidably connected inside the guide tube 45 , a first spring 9 is sleeved on the outer side of the pull rod 8 , and an arc plate 10 is fixedly connected to the bottom of the pull rod 8 .

[0028] One end of the first spring 9 is welded to the outer side of the pull rod 8 , and the other end of the first spring 9 is welded to the outer side of the guide tube 45 . A vent 13 is provided inside the top plate 44 .

[0029] Both sides of the inner wall of the installation box 41 are fixedly connected with connecting pipes 11 , and the inside of the connecting pipes 11 is rotatably connected with elastic balls 12 .

[0030] It should be noted that when the voltage detection device body 5 is installed, the mounting frame 3 is first positioned and installed through the fixing bolt 15. After the mounting frame 3 is positioned and installed, the side block 46 is aligned with the groove inside the mounting frame 3, and the mounting box 41 is slid so that the mounting box 41 moves to the specified position. Then, the power lines of corresponding voltages are led from the outlets of the main circuit breakers of each power supply to the voltage detection device body 5. By adjusting the voltage level of the electrical components of the voltage detection device body 5, the monitoring input requirements can be met. The output alarm signal can be connected to the alarm light, and the control system can perform CTR display or logical operation, as well as sound and light alarm devices, etc. Then, according to the size of the wire to be connected, the wire is fixed and clamped by the pull rod 8, the first spring 9 and the arc plate 10. At the same time, under the action of the elastic ball 12 and the connecting tube 11, the wire is clamped and fixed again. When the voltage detection device body 5 is operating normally, under the action of the heat dissipation fan 7, the inside of the mounting box 41 can be dissipated, so that the voltage detection device body 5 can operate normally.

[0031] The top and bottom of the mounting frame 3 are fixedly connected with a positioning plate 14 , a fixing bolt 15 is arranged inside the positioning plate 14 , and a rotating rod 16 is rotatably connected inside the mounting frame 3 .

[0032] The outer side of the rotating rod 16 is fixedly connected with a first gear 17 , and the outer side of the first gear 17 is meshingly connected with a second gear 18 .

[0033] The inner ring of the second gear 18 is fixedly connected with a transmission tube 19 , the inner thread of the transmission tube 19 is connected with a moving rod 20 , and the inner part of the side block 46 is provided with a through hole 21 used in conjunction with the moving rod 20 .

[0034] It should be noted that: when the installation box 41 moves to the specified position, the rotating rod 16 is rotated. When the rotating rod 16 rotates, it can drive the first gear 17 to rotate, and then when the first gear 17 rotates, it can drive the second gear 18 to rotate. Under the action of the second gear 18, the moving rod 20 is driven to move through the transmission tube 19, and then the moving rod 20 enters the interior of the through hole 21, so that the side block 46 can be fixed, and then the installation box 41 can be fixed and positioned.

[0035] One end of the rotating rod 16 is fixedly connected to a connecting head 22 , and one side of the inner wall of the mounting frame 3 is welded with a second spring 23 .

[0036] A moving plate 24 is welded to one end of the second spring 23 , and a fixing bar 25 is fixedly connected to the top and bottom of the moving plate 24 . A sliding groove 26 used in conjunction with the fixing bar 25 is provided inside the mounting frame 3 .

[0037] It should be noted that when the side block 46 slides inside the mounting frame 3, the movable plate 24 can be squeezed, thereby compressing the second spring 23. When the side block 46 moves to the point where the through hole 21 and the movable rod 20 are in the same vertical line, the side block 46 is positioned and fixed by the rotating rod 16. When the movable rod 20 is separated from the through hole 21, the side block 46 can slide inside the mounting frame 3 under the elastic force of the second spring 23, thereby facilitating the staff to disassemble and assemble the mounting box 41.

[0038] Working principle: When the staff needs to monitor various power cabinets through the voltage detection device body 5, first determine the position of the mounting frame 3 according to the actual situation, and use the fixing bolt 15 to make the mounting frame 3 stably placed, and then use the side block 46 to make the side block 46 enter the inside of the mounting frame 3, and then through the rotation of the rotating rod 16, the moving rod 20 can enter the inside of the through hole 21, so that the side block 46 and the mounting box 41 can be fixed, and then the staff will lead a group of cables from the lower port of the dual-circuit main power circuit breaker of each cabinet that needs to be monitored for power failure to the voltage detection device body 5, and determine whether the power failure is detected by voltage. If the power failure occurs, a corresponding power failure alarm signal is transmitted to The DCS control system displays the corresponding cabinet power failure information on the operator's CRT through logical operations and triggers an audible and visual alarm, so that the operator on duty can notice the alarm information at the first time. At the same time, the output alarm signal can also be flexibly applied, and the alarm light can be connected. The control system performs CTR display or logical operations, and the audible and visual alarm device is also used for various low-voltage power failure monitoring functions, so that the staff can quickly check and repair the lost power supply. At the same time, when clamping the conductive wire, the conductive wire can be clamped and fixed by the pull rod 8, the first spring 9 and the arc plate 10. At the same time, under the action of the heat dissipation fan 7, the voltage detection device body 5 can work normally.

[0039] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An alarm device for a power supply cabinet in a power plant, comprising a power supply cabinet body (1), characterized in that: Also includes: The front surface of the power cabinet body (1) is rotatably connected to a cabinet door (2) via a hinge, and a mounting frame (3) is provided on one side of the inner wall of the power cabinet body (1); An alarm component (4) is arranged inside a power cabinet body (1), and the alarm component (4) comprises an installation box (41), a first side plate (42), a second side plate (43), a top plate (44), a guide tube (45) and a side block (46). The power cabinet body (1) is provided with an installation box (41) inside, the front surface and the rear surface of the installation box (41) are respectively provided with a first side plate (42) and a second side plate (43), the top plate (44) is provided on the top of the installation box (41), the first side plate (42) and the second side plate (43) are both fixedly connected with a guide tube (45), one side of the installation box (41) is fixedly connected with a side block (46), and the installation box (41) is provided with a voltage detection device body (5) inside.

2. The alarm device for a power supply cabinet in a power plant according to claim 1, characterized in that: Positioning bolts (6) are provided inside the first side plate (42), the second side plate (43) and the top plate (44), and cooling fans (7) are fixedly connected to both sides of the inner wall of the installation box (41).

3. The alarm device for a power supply cabinet in a power plant according to claim 1, characterized in that: The guide tube (45) is internally slidably connected to a pull rod (8), the outer side of the pull rod (8) is sleeved with a first spring (9), and the bottom of the pull rod (8) is fixedly connected to an arc plate (10).

4. The alarm device for a power supply cabinet in a power plant according to claim 3 is characterized in that: One end of the first spring (9) is welded to the outside of the pull rod (8), and the other end of the first spring (9) is welded to the outside of the guide tube (45). A vent (13) is provided inside the top plate (44).

5. The alarm device for a power supply cabinet in a power plant according to claim 1, characterized in that: Both sides of the inner wall of the installation box (41) are fixedly connected with connecting pipes (11), and the interior of the connecting pipe (11) is rotatably connected with an elastic ball (12).

6. The alarm device for a power supply cabinet in a power plant according to claim 1, characterized in that: The top and bottom of the mounting frame (3) are fixedly connected to a positioning plate (14), a fixing bolt (15) is arranged inside the positioning plate (14), and a rotating rod (16) is rotatably connected inside the mounting frame (3).

7. The alarm device for a power supply cabinet in a power plant according to claim 6, characterized in that: The outer side of the rotating rod (16) is fixedly connected with a first gear (17), and the outer side of the first gear (17) is meshingly connected with a second gear (18).

8. The alarm device for a power supply cabinet in a power plant according to claim 7, characterized in that: The inner ring of the second gear (18) is fixedly connected to a transmission tube (19), the inner thread of the transmission tube (19) is connected to a moving rod (20), and a through hole (21) for use with the moving rod (20) is provided inside the side block (46).

9. The alarm device for a power supply cabinet in a power plant according to claim 6, characterized in that: One end of the rotating rod (16) is fixedly connected to a connecting head (22), and one side of the inner wall of the mounting frame (3) is welded to a second spring (23).

10. The alarm device for a power supply cabinet in a power plant according to claim 9, characterized in that: A movable plate (24) is welded to one end of the second spring (23), the top and bottom of the movable plate (24) are fixedly connected to fixed strips (25), and a sliding groove (26) for use with the fixed strip (25) is provided inside the mounting frame (3).

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