Power grid reactive compensation cabinet with good heat dissipation function

Abstract

The invention relates to the technical field of power grid electrical cabinets, in particular to a power grid reactive compensation cabinet with a good heat dissipation function, which comprises a main cabinet body, a fire extinguishing assembly, an adjusting assembly and a monitoring assembly, the upper end of the main cabinet body is provided with an upper cover plate, the upper end of the upper cover plate is provided with a ventilator, the front end of the main cabinet body is provided with a cabinet door, and the lower end of the main cabinet body is provided with a base. The fire extinguishing assembly is arranged at the upper end in the main cabinet body, the adjusting assembly is arranged on the outer wall of the rear end of the main cabinet body, the monitoring assembly is arranged in the main cabinet body and electrically connected with the fire extinguishing assembly and the adjusting assembly, the fire extinguishing assembly comprises a fire extinguisher fixed to the outer wall of the main cabinet body, and the upper end of the fire extinguisher is connected with a main guide pipe. According to the electrical cabinet, automatic fire extinguishing operation in the electrical cabinet can be achieved, the angles of the fire extinguishing nozzles can be adjusted, a fire source can be conveniently, rapidly and accurately positioned, the fire extinguishing efficiency is improved, and the use amount of a fire extinguishing agent is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid electrical cabinets, and in particular to a power grid reactive power compensation cabinet with good heat dissipation function. Background Art

[0002] Grid electrical cabinets are the core carriers of power distribution, control, and protection in power systems. They often contain densely packed circuit breakers, transformers, inverters, and other high-heat-generating components. If the heat generated by these components cannot be dissipated in time during operation, the temperature inside the cabinet will rise sharply. When the temperature exceeds the tolerance range of the electrical components for normal operation, it will not only accelerate component aging and shorten their service life, but may also cause faults such as insulation failure and contact oxidation, and even cause serious accidents such as short circuits and fires. At present, traditional power grid electrical cabinets mostly use natural ventilation or simple axial flow fan cooling methods. The air intake part has only one air inlet hole, and no active measures are taken to control the air intake volume. Even if the external exhaust is increased, the ventilation effect inside the entire cabinet cannot be guaranteed. It is difficult to meet the heat dissipation requirements in high temperature environments or high load conditions; it is also impossible to monitor the temperature and humidity inside the electrical cabinet and perform automatic fire extinguishing operations. Hidden dangers cannot be discovered and eliminated in time in the early stages of an accident, which greatly reduces the safety of the electrical cabinet. Therefore, we need to upgrade and transform the existing technology to overcome its problems and shortcomings. Summary of the Invention

[0003] The object of the present invention is to provide a power grid reactive power compensation cabinet with good heat dissipation function to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A grid reactive power compensation cabinet with good heat dissipation function is designed, comprising a main cabinet, a fire extinguishing component, an adjustment component and a monitoring component. The upper end of the main cabinet is provided with an upper cover plate and the upper end of the upper cover plate is provided with a ventilation fan. The front end of the main cabinet is provided with a cabinet door and the lower end is provided with a base. The fire extinguishing component is provided at the upper end of the main cabinet, the adjustment component is provided on the outer wall of the rear end of the main cabinet, and the monitoring component is provided inside the main cabinet and is electrically connected to the fire extinguishing component and the adjustment component respectively. The fire extinguishing assembly includes a fire extinguisher fixed on the outer wall of the main cabinet, the upper end of the fire extinguisher is connected to a main pipe, the main pipe passes through the interior of the main cabinet and the lower end is connected to two sets of pressure nozzles; The adjustment component includes a fixed plate fixed to the outer wall of the main cabinet, a third motor is provided at the inner center of the fixed plate, a movable plate is rotatably provided on the outer side of the fixed plate, and ventilation holes are correspondingly opened on the movable plate and the fixed plate.

[0005] Preferably, the inner side of the movable plate is transmission-connected with a third motor, the third motor is fixed on the inner side of the fixed plate, and a sealing ring is provided on the inner side of the movable plate and is in contact with the fixed plate.

[0006] Preferably, a dustproof net is provided on the outer side of the movable plate and side blocks are provided on the sides of the dustproof net, and the dustproof net is fixedly mounted on the outer wall of the main cabinet through the side blocks.

[0007] Preferably, a tripod is provided at the lower end of the fire extinguisher and the tripod is fixed on the main cabinet, and two sets of mounting seats are provided on the main conduit, and the mounting seats are fixed in the main cabinet.

[0008] Preferably, an upper bracket is provided at the lower end of the main conduit and an upper motor is fixed on the side of the upper bracket. The inner side of the upper motor is rotatably connected to the lower bracket and the inner side of the lower bracket is inverted with a lower motor. The driving end of the lower motor passes through the lower bracket and is connected to the lower end pressure nozzle.

[0009] Preferably, a mounting sleeve is provided at the upper end of the upper bracket, and the mounting sleeve is fixedly mounted on the main conduit.

[0010] Preferably, the lower end of the main conduit is connected to a connecting pipe, the lower end of the connecting pipe is connected to a guiding pipe, and the lower end of the guiding pipe is connected to two groups of pressure nozzles.

[0011] Preferably, the monitoring component includes a control panel fixed on the cabinet door, multiple groups of temperature and humidity sensors are connected to the inside of the control panel, the inside of the control panel is also connected to an explosion-proof monitor, and an alarm is connected to the upper end of the control panel and the alarm is fixed on the upper cover.

[0012] Preferably, the temperature and humidity sensors are provided in multiple groups, and the multiple groups of temperature and humidity sensors are respectively installed on the side of the fixing plate, the inner side of the ventilation fan on the top of the main cabinet, and the circuit breaker contacts and busbar connections inside the cabinet.

[0013] Preferably, the main cabinet is provided with mounting racks arranged horizontally and vertically inside, a plurality of sets of lifting rings are symmetrically provided on the upper end of the upper cover plate, and two sets of air-permeable panels are provided below the front end of the cabinet door.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is equipped with a fire extinguishing assembly, a fire extinguisher, a main pipe, a pressure nozzle, a lower bracket, a lower motor, an upper bracket and an upper motor. Through the cooperation of the above structures, it can realize automatic fire extinguishing operation inside the electrical cabinet. The angle of the fire extinguishing nozzle is adjustable, which is convenient for quickly and accurately locating the fire source, avoiding the defects of "blind spraying" or "incomplete coverage" of fixed nozzles, improving fire extinguishing efficiency and saving dry powder consumption, reducing equipment damage and property loss caused by fire, and improving the practicality of the structure.

[0015] 2. The present invention is equipped with an adjustment component, a fixed plate, a movable plate, a ventilation hole, a third motor, a sealing ring, a dustproof net and a side block in the device. Through the cooperation of the above structures, it can achieve an incremental ventilation effect for the electrical cabinet, and the ventilation fan is linked to improve the air intake capacity. The size of the ventilation hole of the electrical cabinet can be flexibly adjusted to accurately match the air intake requirements under different working conditions, thereby ensuring the ventilation effect in the entire cabinet. It can not only quickly take away the heat generated by the electrical components, but also prevent the invasion of pollutants.

[0016] 3. The present invention is equipped with a monitoring component, a control panel, a temperature and humidity sensor, an explosion-proof monitor and an alarm. Through the cooperation of the above structures, it is possible to realize temperature and humidity monitoring and video monitoring inside the electrical cabinet. The two monitoring means complement each other, which is convenient for ensuring the temperature and humidity status safety of the equipment in the cabinet, and issuing an alarm to help users understand the operation status of the reactive compensation device anytime and anywhere. It not only realizes "passive monitoring" of the electrical cabinet, but also shifts safety management from post-processing to pre-prevention through data-driven active operation and maintenance.

[0017] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope thereby. The embodiments of the present invention encompass numerous variations, modifications, and equivalents within the spirit and scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 Schematic diagram of the overall structure of a power grid reactive power compensation cabinet with good heat dissipation function according to the present invention; Figure 2 It is a side structural diagram of a power grid reactive power compensation cabinet with good heat dissipation function according to the present invention; Figure 3 This is a front structural diagram of a power grid reactive power compensation cabinet with good heat dissipation function according to the present invention; Figure 4 A side structural cross-sectional view of a power grid reactive power compensation cabinet with good heat dissipation function according to the present invention; Figure 5 It is a front structural cross-sectional view of a power grid reactive power compensation cabinet with good heat dissipation function according to the present invention; Figure 6 This is an exploded view of a fire extinguishing component of a power grid reactive compensation cabinet with good heat dissipation function according to the present invention; Figure 7This is an exploded view of the regulating components of a power grid reactive compensation cabinet with good heat dissipation function according to the present invention; Figure 8 This is an exploded view of the monitoring components of a power grid reactive compensation cabinet with good heat dissipation function according to the present invention.

[0019] In the figure: 1. Main cabinet; 11. Mounting frame; 2. Upper cover; 21. Lifting ring; 3. Ventilation fan; 4. Cabinet door; 41. Breathable plate; 5. Base; 6. Fire extinguishing assembly; 61. Fire extinguisher; 611. Tripod; 62. Main pipe; 621. Mounting base; 63. Pressure nozzle; 64. Lower bracket; 65. Lower motor; 66. Upper bracket; 67. Upper motor; 68. Mounting sleeve; 69. Connecting pipe; 610. Guiding pipe; 7. Adjustment assembly; 71. Fixed plate; 72. Movable plate; 73. Ventilation hole; 74. Third motor; 75. Sealing ring; 76. Dust net; 77. Side block; 8. Monitoring assembly; 81. Control panel; 82. Temperature and humidity sensor; 83. Explosion-proof monitoring; 84. Alarm. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1 As shown in Figure 8, this embodiment provides a grid reactive power compensation cabinet with good heat dissipation function, including a main cabinet 1, a fire extinguishing component 6, an adjustment component 7, and a monitoring component 8. The upper end of the main cabinet 1 is provided with an upper cover 2, and the upper end of the upper cover 2 is provided with a ventilation fan 3. The front end of the main cabinet 1 is provided with a cabinet door 4 and the lower end is provided with a base 5. The interior of the main cabinet 1 is provided with a mounting frame 11 arranged horizontally and vertically. The upper end of the upper cover 2 is symmetrically provided with multiple sets of lifting rings 21. Two sets of air permeable plates 41 are provided below the front end of the cabinet door 4. The fire extinguishing component 6 is provided at the upper end of the interior of the main cabinet 1, the adjustment component 7 is provided on the rear end outer wall of the main cabinet 1, and the monitoring component 8 is provided inside the main cabinet 1 and is electrically connected to the fire extinguishing component 6 and the adjustment component 7 respectively. In this embodiment, the fire extinguishing assembly 6 includes a fire extinguisher 61 fixed on the outer wall of the main cabinet 1, the upper end of the fire extinguisher 61 is connected to a main conduit 62, the main conduit 62 passes through the interior of the main cabinet 1 and is connected to two groups of pressure nozzles 63 at the lower end, a tripod 611 is provided at the lower end of the fire extinguisher 61 and the tripod 611 is fixed on the main cabinet 1, two groups of mounting seats 621 are provided on the main conduit 62, and the mounting seats 621 are fixed in the main cabinet 1, an upper bracket 66 is provided at the lower end of the main conduit 62, and an upper motor 67 is fixed on the side of the upper bracket 66, the inner side of the upper motor 67 is rotatably connected to the lower bracket 64 and the inner side of the lower bracket 64 is inverted with a lower motor 65, the driving end of the lower motor 65 passes through the lower bracket 64 and is connected to the lower end pressure nozzle 63, and the upper end of the upper bracket 66 is provided with The mounting sleeve 68 is fixedly mounted on the main conduit 62. The lower end of the main conduit 62 is connected to a connecting pipe 69. The lower end of the connecting pipe 69 is connected to a guiding pipe 610. The lower end of the guiding pipe 610 is connected to two groups of pressure nozzles 63. The upper motor 67 can drive the lower bracket 64 to rotate. The lower bracket 64 drives the pressure nozzle 63 to rotate up and down. The lower motor 65 drives the pressure nozzle 63 to rotate left and right, so that the pressure nozzle 63 is accurately directed to the fire source. Dry powder is conducted into the main conduit 62 through the fire extinguisher 61. The dry powder is sprayed from the pressure nozzle 63 and extinguishes the fire at the fire location, thereby realizing automatic fire extinguishing operation inside the electrical cabinet. The fire extinguishing nozzle angle is adjustable, which is convenient for quickly and accurately locating the fire source, avoiding the defects of "blind spraying" or "incomplete coverage" of fixed nozzles, improving fire extinguishing efficiency and saving dry powder consumption, reducing equipment damage and property loss caused by fire, and improving the practicality of the structure. In this embodiment, the adjustment component 7 includes a fixed plate 71 fixed to the outer wall of the main cabinet 1, a third motor 74 is provided at the inner center of the fixed plate 71, a movable plate 72 is provided on the outer side of the fixed plate 71 for rotation, and ventilation holes 73 are provided on the movable plate 72 and the fixed plate 71 respectively. The inner side of the movable plate 72 is connected to the third motor 74, and the third motor 74 is fixed to the inner side of the fixed plate 71. A sealing ring 75 is provided on the inner side of the movable plate 72 and the sealing ring 75 is fitted with the fixed plate 71. A dustproof net 76 is provided on the outer side of the movable plate 72 and a dustproof net 76 is provided on the side. There are side blocks 77, and the dust net 76 is fixedly installed on the outer wall of the main cabinet 1 through the side blocks 77. The movable plate 72 is driven by the third motor 74 to rotate on the outside of the fixed plate 71, so that the inner and outer air holes 73 are switched between misalignment or overlap, thereby achieving an incremental ventilation effect on the electrical cabinet, and linking the ventilation fan 3 to improve the air intake capacity. The size of the air holes 73 of the electrical cabinet can be flexibly adjusted to accurately match the air intake requirements under different working conditions, thereby ensuring the ventilation effect in the entire cabinet, which can not only quickly take away the heat generated by the electrical components, but also prevent the invasion of pollutants.

[0022] In this embodiment, the monitoring component 8 includes a control panel 81 fixed on the cabinet door 4, multiple groups of temperature and humidity sensors 82 are connected to the inside of the control panel 81, and an explosion-proof monitoring 83 is also connected to the inside of the control panel 81. The upper end of the control panel 81 is connected to an alarm 84 and the alarm 84 is fixed on the upper cover 2. Multiple groups of temperature and humidity sensors 82 are provided, and the multiple groups of temperature and humidity sensors 82 are respectively installed on the side of the fixing plate 71, the inside of the ventilation fan 3 on the top of the main cabinet 1, and the circuit breaker contacts and busbar connections inside the cabinet. The temperature and humidity sensors 82 are operated by the control panel 81, and the temperature and humidity sensors 82 are connected to the upper cover 2. Multiple groups of temperature and humidity sensors 82 monitor internal temperature and humidity changes respectively, and the internal status of the electrical cabinet is monitored by explosion-proof monitoring 83 video. When the temperature exceeds the threshold, an alarm is issued by the alarm 84, which can realize temperature and humidity monitoring and video monitoring inside the electrical cabinet. The two monitoring methods complement each other, which is convenient for ensuring the temperature and humidity status of the equipment in the cabinet. The alarm is issued in time to help users understand the operation status of the reactive compensation device anytime and anywhere, which not only realizes "passive monitoring" of the electrical cabinet, but also shifts safety management from post-processing to pre-prevention through data-driven active operation and maintenance.

[0023] The principle and process of use of the present invention are as follows: when in use, the device is first operated through the control panel 81 to make the temperature and humidity sensor 82, explosion-proof monitoring 83 and alarm 84 work. The temperature and humidity sensor 82 directly monitors the electrical connection points, evaluates the temperature and humidity at the entrance of the ventilation system, and monitors the temperature and humidity conduction of the cabinet structure. The explosion-proof monitoring 83 records visible anomalies (such as arcs, sparks, and smoke) in real time, and achieves millisecond-level visual capture of sudden obvious faults (such as short circuit moments). When an anomaly occurs, the alarm 84 sounds an alarm and prompts the staff. In the event of a fire, the fire extinguishing component 6 and the monitoring component 8 work together. The dry powder in the fire extinguisher 61 is guided from the main conduit 62 to the pressure nozzle 63, and then sprayed into the electrical cabinet through the pressure nozzle 63. At the same time, the upper motor 67 and the lower motor 65 work synchronously and respectively control the lower bracket 64 and the pressure nozzle 63 to adjust the angle, accurately pointing to the fire source, thereby improving the fire extinguishing efficiency. The monitoring component 8 also links the adjustment component 7. When the internal temperature is high, the third motor 74 drives the movable plate 72 to rotate on the outside of the fixed plate 71, so that the inner and outer ventilation holes 73 overlap, and the ventilation holes 73 can be opened to the maximum, thereby enabling incremental ventilation of the electrical cabinet and quickly taking away the heat generated by the electrical components.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0025] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

Claims

1. A power grid reactive power compensation cabinet with good heat dissipation function, characterized in that: The invention comprises a main cabinet (1), a fire extinguishing assembly (6), an adjusting assembly (7) and a monitoring assembly (8); the upper end of the main cabinet (1) is provided with an upper cover plate (2) and the upper end of the upper cover plate (2) is provided with a ventilation fan (3); the front end of the main cabinet (1) is provided with a cabinet door (4) and the lower end is provided with a base (5); the fire extinguishing assembly (6) is provided at the upper end of the main cabinet (1); the adjusting assembly (7) is provided on the outer wall of the rear end of the main cabinet (1); and the monitoring assembly (8) is provided inside the main cabinet (1) and is electrically connected to the fire extinguishing assembly (6) and the adjusting assembly (7) respectively; The fire extinguishing assembly (6) comprises a fire extinguisher (61) fixed on the outer wall of the main cabinet (1), the upper end of the fire extinguisher (61) is connected to a main conduit (62), the main conduit (62) penetrates into the interior of the main cabinet (1) and the lower end is conductively connected to two groups of pressure nozzles (63); The adjustment assembly (7) comprises a fixed plate (71) fixed to the outer wall of the main cabinet (1), a third motor (74) is provided at the inner center of the fixed plate (71), a movable plate (72) is rotatably provided on the outer side of the fixed plate (71), and ventilation holes (73) are correspondingly provided on the movable plate (72) and the fixed plate (71).

2. The power grid reactive power compensation cabinet with good heat dissipation function according to claim 1, characterized in that: The inner side of the movable plate (72) is connected to a third motor (74) in a transmission manner. The third motor (74) is fixed on the inner side of the fixed plate (71). A sealing ring (75) is provided on the inner side of the movable plate (72) and the sealing ring (75) is in contact with the fixed plate (71).

3. The power grid reactive power compensation cabinet with good heat dissipation function according to claim 2, characterized in that: A dustproof net (76) is provided on the outside of the movable plate (72), and a side block (77) is provided on the side of the dustproof net (76). The dustproof net (76) is fixedly mounted on the outer wall of the main cabinet (1) through the side block (77).

4. The power grid reactive compensation cabinet with good heat dissipation function according to claim 1, characterized in that: A tripod (611) is provided at the lower end of the fire extinguisher (61), and the tripod (611) is fixed on the main cabinet (1). Two sets of mounting seats (621) are provided on the main conduit (62), and the mounting seats (621) are fixed in the main cabinet (1).

5. The power grid reactive power compensation cabinet with good heat dissipation function according to claim 4, characterized in that: An upper bracket (66) is provided at the lower end of the main conduit (62), and an upper motor (67) is fixed to the side of the upper bracket (66). The inner side of the upper motor (67) is rotatably connected to the lower bracket (64), and the inner side of the lower bracket (64) is inverted with a lower motor (65). The driving end of the lower motor (65) passes through the lower bracket (64) and is connected to the lower end pressure nozzle (63).

6. The power grid reactive power compensation cabinet with good heat dissipation function according to claim 5, characterized in that: A mounting sleeve (68) is provided at the upper end of the upper bracket (66), and the mounting sleeve (68) is fixedly mounted on the main conduit (62).

7. The grid reactive power compensation cabinet with good heat dissipation function according to claim 6, characterized in that: The lower end of the main conduit (62) is connected to a connecting pipe (69), the lower end of the connecting pipe (69) is connected to a guiding pipe (610), and the lower end of the guiding pipe (610) is connected to two groups of pressure nozzles (63).

8. The power grid reactive compensation cabinet with good heat dissipation function according to claim 1, characterized in that: The monitoring assembly (8) includes a control panel (81) fixed on the cabinet door (4), a plurality of temperature and humidity sensors (82) are connected to the inner side of the control panel (81), an explosion-proof monitor (83) is also connected to the inner side of the control panel (81), and an alarm (84) is connected to the upper end of the control panel (81), and the alarm (84) is fixed on the upper cover (2).

9. The grid reactive power compensation cabinet with good heat dissipation function according to claim 8, characterized in that: The temperature and humidity sensors (82) are provided in multiple groups, and the multiple groups of temperature and humidity sensors (82) are respectively installed on the side of the fixing plate (71), the inside of the ventilation fan (3) on the top of the main cabinet (1), and the circuit breaker contacts and busbar connections inside the cabinet.

10. The power grid reactive power compensation cabinet with good heat dissipation function according to claim 1, characterized in that: The main cabinet (1) is provided with mounting frames (11) arranged horizontally and vertically inside, the upper end of the upper cover plate (2) is symmetrically provided with multiple sets of lifting rings (21), and two sets of air permeable plates (41) are provided below the front end of the cabinet door (4).

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