High-voltage rectifier cabinet bus temperature monitoring device

Abstract

The utility model discloses a bus temperature monitoring device for a high-voltage rectifier cabinet, and particularly relates to the technical field of high-voltage rectifier cabinets, which comprises a thermocouple which is arranged in the high-voltage rectifier cabinet and is used for monitoring the temperature of a bus, and the thermocouple consists of a compensation end and a measuring end connected to the end part of the compensation end, one end of the measuring end is in contact with a bus, the outer side wall of the compensation end is connected with an adapter wire, one end of the adapter wire is connected with a thermoelectric force display instrument, an L-shaped plate is arranged on the outer side of the compensation end, and the outer wall of the top of the L-shaped plate is fixedly connected with an insulating support. According to the utility model, the installed electromagnet is electrified to generate magnetism to attract a metal plate or an inner wall in the high-voltage rectifier cabinet, and the shell is taken down after demagnetization after power failure, so that the whole temperature measuring device can be conveniently and rapidly installed and disassembled in the high-voltage rectifier cabinet, and the installation position can be adjusted according to actual needs; and the problem of monitoring data distortion caused by a contact separation phenomenon is not easy to occur.

Description

Technical Field

[0001] This utility model relates to the field of high voltage rectifier cabinet technology, and more specifically, to a high voltage rectifier cabinet busbar temperature monitoring device. Background Technology

[0002] High-voltage rectifier cabinets, as core equipment in power electronic systems, are widely used in high-voltage direct current transmission, electrolytic metallurgy, and rail transit traction power supply. Under long-term high-load operation, the internal busbars are prone to abnormal temperature rise due to factors such as current thermal effect and contact resistance. If not monitored and intervened in time, it may cause serious accidents such as insulation aging, conductor deformation, or even short circuit and fire.

[0003] Traditional busbar temperature monitoring methods include manual inspection or contact sensors such as thermocouples and platinum resistance thermometers. For thermocouple temperature monitoring, the thermocouple is usually fixed by a bracket and screws to keep its position fixed. This makes it inconvenient to adjust the position of the entire temperature monitoring device inside the high-voltage rectifier cabinet. At the same time, the installation and removal inside the high-voltage rectifier cabinet is time-consuming and labor-intensive. The contact position between the thermocouple measuring end and the busbar is easily affected by external vibration, causing displacement and resulting in distorted monitoring data. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a high-voltage rectifier cabinet bus temperature monitoring device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage rectifier cabinet busbar temperature monitoring device, comprising a thermocouple installed inside the high-voltage rectifier cabinet for monitoring busbar temperature. The thermocouple consists of a compensation end and a measuring end connected to the end of the compensation end. One end of the measuring end contacts the busbar. An adapter wire is connected to the outer wall of the compensation end. One end of the adapter wire is connected to a thermoelectric potential display. An L-shaped plate is provided on the outer side of the compensation end. An insulating bracket is fixedly connected to the top outer wall of the L-shaped plate. An electromagnet for adsorbing the metal plate or inner wall inside the high-voltage rectifier cabinet is embedded in the top of the insulating bracket. A spring is connected between the top of the compensation end and the top inner wall of the L-shaped plate. A U-shaped frame is fixedly connected to the outer wall of the compensation end. A T-shaped locking block inserted into the L-shaped plate is provided at one end of the U-shaped frame.

[0006] As a further improvement to the technical solution of this utility model, metal plates are welded to both ends of the spring, and the two metal plates are fixedly connected to the top outer wall of the compensation end and the top inner wall of the L-shaped plate by screws.

[0007] As a further improvement to the technical solution of this utility model, the U-shaped frame and the outer wall of the compensation end are fixedly connected by screws, and the interior of the U-shaped frame is provided with connection holes corresponding to the connection points of the screws.

[0008] As a further improvement to the technical solution of this utility model, the inner sidewall of the L-shaped plate is provided with a T-shaped groove in the vertical direction corresponding to the outer side of the T-shaped block, and the U-shaped frame is welded and fixed to the T-shaped block.

[0009] As a further improvement to the technical solution of this utility model, a storage battery and a control switch are installed on the outer wall of the L-shaped plate, and the control switch is located above the storage battery.

[0010] As a further improvement to the technical solution of this utility model, the insulating bracket can be made of PVC material, and the bottom of the insulating bracket and the top of the L-shaped plate are fixedly connected by screws.

[0011] As a further improvement to the technical solution of this utility model, the top of the insulating bracket is provided with a groove for installing an electromagnet.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model uses thermocouples to monitor the temperature of the busbar inside a high-voltage rectifier cabinet. An L-shaped plate is set on the outside of the compensation end, and an insulating bracket is connected to the top of the L-shaped plate. An electromagnet is embedded in the top of the insulating bracket. During installation, the electromagnet is energized to generate magnetism, which allows the electromagnet to attract the metal plate or inner wall inside the high-voltage rectifier cabinet. After de-energizing and removing the magnetism, the shell can be removed. This makes the entire temperature measuring device easy to install and remove quickly in the high-voltage rectifier cabinet. The installation position can be adjusted according to actual needs. The PVC insulating bracket forms an insulating barrier between the thermocouple and the metal plate or inner wall inside the high-voltage rectifier cabinet, avoiding safety problems caused by leakage.

[0014] 2. By connecting a spring between the inner wall of the top of the L-shaped plate and the top of the compensation end, the spring provides an elastic force to the thermocouple. Combined with the limiting of the T-shaped locking block and the T-shaped sliding groove, a stable thrust is provided to the compensation end on the thermocouple, so that the measuring end can closely contact the busbar, thereby monitoring the temperature of the busbar and preventing the problem of contact loss that would cause data distortion. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is the main view of the installation of this utility model.

[0017] Figure 3This is a partial structural schematic diagram of the present invention.

[0018] Figure 4 This is a schematic diagram of the connection structure between the U-shaped frame and the T-shaped card block in this utility model.

[0019] Figure 5 This is a schematic diagram of the installation structure of the electromagnet on the insulating bracket in this utility model.

[0020] The attached diagram is labeled as follows: 1. Compensation end; 2. Measuring end; 3. Adapter wire; 4. Thermoelectric potential display instrument; 5. L-shaped plate; 6. Spring; 7. U-shaped frame; 8. T-shaped block; 9. T-shaped slide; 10. Storage battery; 11. Control switch; 12. Insulating bracket; 13. Electromagnet; 701. Connecting hole; 121. Slot. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] As attached Figure 1-5 The high-voltage rectifier cabinet busbar temperature monitoring device shown includes a thermocouple installed inside the high-voltage rectifier cabinet for monitoring the busbar temperature. The thermocouple consists of a compensation end 1 and a measuring end 2 connected to the end of the compensation end 1. One end of the measuring end 2 contacts the busbar. An adapter wire 3 is connected to the outer wall of the compensation end 1. One end of the adapter wire 3 is connected to a thermoelectric potential display 4. An L-shaped plate 5 is provided on the outer side of the compensation end 1. An insulating bracket 12 is fixedly connected to the top outer wall of the L-shaped plate 5. An electromagnet 13 for adsorbing the metal plate or inner wall inside the high-voltage rectifier cabinet is embedded in the top of the insulating bracket 12. A spring 6 is connected between the top of the compensation end 1 and the top inner wall of the L-shaped plate 5. A U-shaped frame 7 is fixedly connected to the outer wall of the compensation end 1. A T-shaped clip 8 inserted into the L-shaped plate 5 is provided at one end of the U-shaped frame 7.

[0023] As attached Figure 1-3 As shown, metal plates are welded to both ends of the spring 6. The two metal plates are fixedly connected to the top outer wall of the compensation end 1 and the top inner wall of the L-shaped plate 5 by screws, which facilitates the connection of the spring 6. The spring 6 provides an elastic force to the thermocouple, which provides a thrust to the compensation end 1 on the thermocouple, so that the measuring end 2 can be in close contact with the busbar, thereby monitoring the temperature of the busbar and preventing the problem of contact loss that would cause the monitoring data to be distorted.

[0024] As attached Figure 1-4 As shown, the U-shaped frame 7 and the outer wall of the compensation end 1 are fixedly connected by screws. The U-shaped frame 7 has a connection hole 701 at the connection point of the screw, which facilitates the connection and fixation between the U-shaped frame 7 and the compensation end 1.

[0025] As attached Figure 1 and attached Figure 3-4 As shown, the inner wall of the L-shaped plate 5 is provided with a T-shaped groove 9 in the vertical direction corresponding to the outer side of the T-shaped block 8. The U-shaped frame 7 is welded and fixed to the T-shaped block 8, which facilitates the vertical movement of the T-shaped block 8 on the inner wall of the L-shaped plate 5, thereby allowing the thermocouple to maintain a stable direction of movement.

[0026] As attached Figure 1-3 As shown, a storage battery 10 and a control switch 11 are installed on the outer wall of the L-shaped plate 5. The control switch 11 is located above the storage battery 10, which facilitates the energization of the electromagnet 13 during use.

[0027] As attached Figure 1-3 As shown, the insulating bracket 12 can be made of PVC, and the bottom of the insulating bracket 12 is fixedly connected to the top of the L-shaped plate 5 by screws, which facilitates the connection and fixation of the insulating bracket 12. Utilizing the insulating properties of PVC, an insulating barrier is formed between the thermocouple and the internal metal plate or inner wall of the high-voltage rectifier cabinet, avoiding safety issues caused by leakage.

[0028] As attached Figure 5 As shown, the top of the insulating bracket 12 is provided with a groove 121 for mounting the electromagnet 13, which facilitates the mounting of the electromagnet 13 on the insulating bracket 12.

[0029] Working principle: This utility model designs a high-voltage rectifier cabinet busbar temperature monitoring device, the specific structure of which is shown in the attached instruction manual. Figure 1-5As shown, in this technical solution, a thermocouple is used to monitor the temperature of the busbar inside the high-voltage rectifier cabinet. The thermocouple itself consists of a compensation end 1 and a measuring end 2. The measuring end 2 is used to contact the busbar. The compensation end 1 is connected to an external thermoelectric potential display instrument 4 via an adapter wire 3, which facilitates the display of temperature data for the operator to observe. An L-shaped plate 5 is set on the outside of the compensation end 1, and an insulating bracket 12 is connected to the top of the L-shaped plate 5. An electromagnet 13 is embedded in the top of the insulating bracket 12. During installation, the electromagnet 13 is energized to generate magnetism, which allows the electromagnet 13 to attract the metal plate or inner wall inside the high-voltage rectifier cabinet. After de-energizing and removing the magnetism, the casing can be removed, making the entire temperature measuring device convenient for use in high-voltage rectification. The cabinet allows for quick installation and disassembly, and the installation position can be adjusted according to actual needs. The PVC insulating bracket 12 creates an insulating barrier between the thermocouple and the internal metal plate or inner wall of the high-voltage rectifier cabinet, preventing safety issues caused by leakage. At the same time, by connecting the top inner wall of the L-shaped plate 5 and the top of the compensation end 1, the spring 6 provides an elastic force to the thermocouple. Combined with the limiting of the T-shaped locking block 8 and the T-shaped sliding groove 9, it is convenient to provide a stable directional thrust to the compensation end 1 on the thermocouple, so that the measuring end 2 can make close contact with the busbar, thereby monitoring the temperature of the busbar and preventing the problem of contact loss that could cause data distortion.

[0030] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high voltage rectifier cubicle busbar temperature monitoring device characterized by: The utility model provides a high voltage rectifier cabinet internal temperature monitoring thermocouple, the thermocouple is by two parts of compensation end (1) and the measurement end (2) connected in compensation end (1) end, one end of measurement end (2) contacts on the bus, the outside wall of compensation end (1) is connected with the switching lead (3), one end of switching lead (3) is connected with thermoelectric potential display instrument (4), the outside of compensation end (1) is provided with L type board (5), the top outer wall of L type board (5) is fixedly connected with insulating support (12), the top of insulating support (12) is embedded with electromagnet (13) for adsorbing high voltage rectifier cabinet internal metal plate or inner wall, the top of compensation end (1) and the top inner wall of L type board (5) are connected with spring (6), and the outside wall of compensation end (1) is fixedly connected with U type frame (7), one end of U type frame (7) is provided with T type clamping block (8) inserted to the inside of L type board (5).

2. The high voltage rectifier cubicle busbar temperature monitoring device as claimed in claim 1, wherein: Both ends of the spring (6) are welded with metal sheets, and the metal sheets are fixedly connected with the top outer wall of the compensation end (1) and the top inner wall of the L type board (5) by screws.

3. The high voltage rectifier busbar temperature monitoring device of claim 1, wherein: The U type frame (7) and the outer wall of the compensation end (1) are fixedly connected by screws, and the inside of the U type frame (7) is provided with a connecting hole (701) corresponding to the connecting position of the screws.

4. The high voltage rectifier busbar temperature monitoring device of claim 1, wherein: The inner side wall of the L type board (5) is provided with a T type sliding groove (9) corresponding to the outer part of the T type clamping block (8) in the vertical direction, and the U type frame (7) and the T type clamping block (8) are fixedly connected by welding.

5. The high voltage rectifier busbar temperature monitoring device of claim 1, wherein: The outer side wall of the L type board (5) is provided with a battery (10) and a control switch (11), and the control switch (11) is arranged above the battery (10).

6. The high voltage rectifier busbar temperature monitoring device of claim 1, wherein: The insulating support (12) can be made of PVC, and the bottom of the insulating support (12) and the top of the L type board (5) are fixedly connected by screws.

7. The high voltage rectifier busbar temperature monitoring device of claim 1, wherein: The top of the insulating support (12) is provided with a recess (121) for mounting the electromagnet (13).

Images