Integrated reactive power compensation device

Abstract

The utility model discloses an integrated reactive power compensation device, which belongs to the technical field of reactive power compensation devices and comprises an outer shell, a reactor and a capacitor are respectively arranged in the outer shell, a connecting assembly is arranged at the bottom end of the outer shell, a fixing assembly is arranged at the bottom end of the connecting assembly, and a pulling assembly is arranged at the outer end of the fixing assembly. The connecting assembly comprises a connecting plate, the connecting plate is fixedly installed at the bottom end of the outer shell, the connecting assembly is installed at the bottom of the outer shell, then the fixing assembly is installed in the electric cabinet, a connecting rod arranged between two connecting blocks is clamped by a movable ring and a fixed ring, and installation can be completed; when the reactive power compensation device needs to be dismounted for maintenance and overhaul subsequently, the plurality of movable rings can be driven to move backwards to be far away from the fixed ring only by pulling the handle backwards, so that the connecting rod can be taken out, bolts do not need to be screwed when the reactive power compensation device is taken down, and the convenience of overhaul is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reactive power compensation devices, and more specifically, to an integrated reactive power compensation device. Background Art

[0002] A reactive power compensation device is a device used to improve the power factor of an electric power system. The power factor is an indicator that measures the ratio between the active power and the apparent power (including active power and reactive power) in a power supply. The power factor reflects the phase difference between current and voltage. When the power factor is lower than 1, there is reactive power in the system, which will lead to energy waste and reduced power system efficiency. The reactive power compensation device adjusts the reactive power by controlling the entry and exit of capacitors and reactors, thereby achieving reactive power compensation of the power system, improving the power factor, stabilizing the voltage, reducing transmission losses, and improving the stability and reliability of the power system.

[0003] The Chinese patent announcement number CN216355989U discloses an intelligent integrated low-voltage reactive compensation device, which uses a hydraulic rod to press the elastic frame and the extrusion spring on its lower surface, so that the hydraulic rod drives the L-shaped push plates on its left and right sides to move, and then the L-shaped push plates will drive the moving plates and the cleaning plates to automatically clean the outer surface of the control shell; at the same time, when the hydraulic rod moves, it will drive the pressure column to move, and then the pressure column will press the arc column at one end, and then the arc column will drive the piston plate to move, and the piston plate will squeeze the water inside the water storage seat, and then the water inside will be squeezed into the inside of the water outlet pipe, and under the action of the water outlet pipe and the cleaning plate, part of the water will flow out from the water outlet head, achieving a double cleaning effect, which brings beneficial effects to the use of the control shell.

[0004] In actual use, it is often necessary to connect multiple reactive power compensation devices in parallel or series to provide the required reactive power compensation. This allows them to be combined according to specific power system requirements and load characteristics. The combined reactive power compensation devices need to be uniformly installed in the electrical cabinet. The devices in the above solution need to be installed inside the electrical cabinet using bolts. When they need to be removed for maintenance, the bolt connection requires more steps and tools, and is difficult to remove, increasing the difficulty of maintenance.

[0005] Therefore, it is necessary to provide an integrated reactive power compensation device to solve the above problems. Utility Model Content

[0006] The utility model provides an integrated reactive power compensation device, which can improve the existing problem in the related art that the reactive power compensation device is installed inside the electrical cabinet using bolts. When it needs to be disassembled for maintenance, the bolt connection requires more steps and tools, and it is not easy to disassemble, which increases the difficulty of maintenance.

[0007] An embodiment of the present application provides an integrated reactive power compensation device, comprising an outer shell, wherein a reactor and a capacitor are respectively arranged inside the outer shell, a connecting assembly is provided at the bottom end of the outer shell, a fixing assembly is provided at the bottom end of the connecting assembly, a pulling assembly is provided at the outer end of the fixing assembly, a circuit breaker is provided inside the outer shell, and a main control device is provided at the top of the capacitor, the connecting assembly comprises a connecting plate, the connecting plate is fixedly installed at the bottom end of the outer shell, a plurality of connecting blocks are fixedly connected on both sides of the bottom end of the connecting plate, a connecting rod is fixedly installed between two of the connecting blocks, the fixing assembly comprises a plurality of fixed rings and a plurality of movable rings, the fixed rings and the movable rings are both arranged in a semicircular shape, the fixed rings and the movable rings are both adapted to the connecting rod, and the outer end of the movable ring is fixedly connected to the movable rod.

[0008] The above-mentioned technical solution in the embodiment of the present application has at least the following technical effects: by installing a connecting component on the bottom of the outer shell and then installing the fixed component inside the electrical cabinet, the installation can be completed by clamping the connecting rod set between the two connecting blocks by the movable ring and the fixed ring. When the reactive compensation device needs to be removed for maintenance and inspection later, it is only necessary to pull the handle backward to drive the multiple movable rings to move backward away from the fixed ring so that the connecting rod can be taken out, so that there is no need to tighten the bolts when removing the reactive compensation device, thereby improving the convenience of maintenance.

[0009] In some embodiments, a display screen is installed on the outer end of the outer shell, a plurality of buttons are installed on the outer end of the display screen, handles are provided on both sides of the outer shell, a plurality of communication ports are installed on the outer end of the outer shell, and a heat dissipation hole is opened on the outer end of the outer shell.

[0010] In some embodiments, the fixing assembly further includes a fixing plate, the top end of which is fixedly connected to two symmetrically distributed fixing side plates, the outer ends of which are provided with a plurality of slide grooves and a plurality of slots.

[0011] In some embodiments, the outer end of the fixed ring is fixedly connected to a mounting bracket, and the mounting bracket is fixedly installed on the top of the fixed plate by bolts. The bottom end of the fixed ring is fixedly connected to a fixing rod, and the fixing rod is fixedly connected to a limiting block on the side away from the fixed ring. The bottom end of the movable ring is provided with a movable groove adapted to the fixing rod, and the movable ring is slidably connected to the fixed rod through the movable groove. The limit block is arranged in an arc shape, and the limit block abuts against the outer end of the movable ring.

[0012] In some embodiments, the fixing assembly also includes a fixed shell, the outer end of the movable ring is fixedly connected to a pressure rod, the fixed shell is fixedly installed on the outer end of the fixed side plate, a telescopic spring is arranged inside the fixed shell, one end of the pressure rod extends into the interior of the fixed shell, and one end of the pressure rod is fixedly connected to the telescopic spring.

[0013] In some embodiments, the pulling assembly includes two pull rods, the outer ends of the pull rods are fixedly connected to the plurality of movable rods, the movable rods are slidably connected to the slide grooves, and a handle is rotatably connected between the two pull rods.

[0014] In some embodiments, the pulling assembly further includes a limiting plate, which is fixedly mounted on the outer end of the fixing plate. A limiting groove is provided at one end of the limiting plate, and the limiting groove is adapted to the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a schematic diagram of the first overall structure of the utility model;

[0017] Figure 2 This is a second overall structural diagram of the present utility model;

[0018] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the pulling component structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the exploded structure of the fixing assembly of the utility model;

[0021] Figure 6 It is a schematic diagram of the local structure of the fixing component of the present utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Outer shell;

[0024] 2. Display screen;

[0025] 3. Press the button;

[0026] 4. Heat dissipation holes;

[0027] 5. Handle;

[0028] 6. Reactor;

[0029] 7. Connecting assembly; 71. Connecting plate; 72. Connecting block; 73. Connecting rod;

[0030] 8. Fixing assembly; 81. Fixing plate; 82. Fixing side plate; 83. Slot; 84. Slide; 85. Fixing ring; 86. Movable ring; 87. Mounting bracket; 88. Fixing rod; 89. Limit block; 810. Press rod; 811. Fixing housing; 812. Telescopic spring; 813. Movable rod;

[0031] 9. Pull assembly; 91. Pull rod; 92. Handle; 93. Limit plate; 94. Limit slot;

[0032] 10. Communication port;

[0033] 11. Capacitor;

[0034] 12. Circuit breaker;

[0035] 13. Main control device. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusions.

[0038] In actual use, it is often necessary to connect multiple reactive power compensation devices in parallel or series to provide the required reactive power compensation, so that they can be combined according to specific power system requirements and load characteristics. The combined reactive power compensation devices need to be uniformly installed in the electrical cabinet and installed inside the electrical cabinet using bolts. When they need to be removed for maintenance, the bolt connection requires more steps and tools, and the difficulty of disassembly increases the difficulty of maintenance.

[0039] Based on this, the problem in the related art that the reactive compensation device is installed inside the electrical cabinet using bolts can be improved. When it needs to be removed for maintenance, the bolt connection requires more steps and tools, and the difficulty in disassembly increases the difficulty of maintenance.

[0040] See also Figures 1-6, an integrated reactive power compensation device, including an outer shell 1, wherein a reactor 6 and a capacitor 11 are respectively arranged inside the outer shell 1, a connecting component 7 is provided at the bottom end of the outer shell 1, a fixing component 8 is provided at the bottom end of the connecting component 7, a pulling component 9 is provided at the outer end of the fixing component 8, a circuit breaker 12 is provided inside the outer shell 1, and a main control device 13 is provided at the top of the capacitor 11, the connecting component 7 includes a connecting plate 71, the connecting plate 71 is fixedly installed at the bottom end of the outer shell 1, a plurality of connecting blocks 72 are fixedly connected on both sides of the bottom end of the connecting plate 71, a connecting rod 73 is fixedly installed between the two connecting blocks 72, the fixing component 8 includes a plurality of fixed rings 85 and a plurality of movable rings 86, the fixed ring 85 and the movable ring 86 are both arranged in a semicircular shape, the fixed ring 85 and the movable ring 86 are both adapted to the connecting rod 73, and the outer end of the movable ring 86 is fixedly connected to a movable rod 813.

[0041] A display screen 2 is mounted on the outer end of the outer shell 1 , a plurality of buttons 3 are mounted on the outer end of the display screen 2 , handles 5 are provided on both sides of the outer shell 1 , a plurality of communication ports 10 are mounted on the outer end of the outer shell 1 , and a heat dissipation hole 4 is opened on the outer end of the outer shell 1 .

[0042] The reactive power compensation device arranged inside the outer shell 1 in this solution is mainly composed of a composite switch, a capacitor 11, a reactor 6, a display screen 2, and a button 3, which is used to generate or absorb reactive power to adjust the power factor of the system. The capacitor 11 is used to absorb reactive power and help improve the power factor. It can quickly respond to system needs and provide the required reactive power compensation, while the reactor 6 can prevent current changes. The composite switch includes a main control device 13, an equipment protector, a relay, a sensor, a display screen 2, a button 3, etc. The main control device 13 is used to monitor the system voltage, current and power factor, etc. to ensure that the system maintains the required power factor level. The equipment protector usually includes a circuit breaker 12, etc., which is used to protect the reactive power compensation device and other electrical equipment from overload, In order to prevent the influence of faults such as short circuit, a display screen 2 is provided at the outer end of the outer shell 1, and the display screen 2 is used to display relevant parameter information. The multiple buttons 3 provided on the display screen 2 are used to control and adjust the display information on the display screen 2. The back of the outer shell 1 is provided with multiple interfaces and communication ports 10 for connecting with external circuits and measuring and controlling instruments. It can also cooperate with the main control device 13 to connect to the external communication device. The main control device 13 exchanges information and transmits data with the measuring and controlling instrument or the upper monitoring system through the communication port 10 to realize remote monitoring and management, so as to remotely adjust the operating status of the reactive power compensation system. A plurality of heat dissipation holes 4 are provided at the front end of the outer shell 1 to help internal heat dissipation, and the handles 5 provided on both sides of the outer shell 1 are used to facilitate the picking up of the device.

[0043] A connecting component 7 is installed at the bottom of the outer shell 1, and a fixing component 8 is provided at the bottom of the connecting component 7. The fixing component 8 needs to be installed in the electrical cabinet. A pulling component 9 is also provided at the outer end of the fixing component 8. The installation can be completed by clamping the connecting rod 73 provided between the two connecting blocks 72 by the movable ring 86 and the fixed ring 85. When the reactive compensation device needs to be removed for maintenance and inspection later, it is only necessary to pull the handle 92 backward to drive the multiple movable rings 86 to move backward away from the fixed ring 85, so that the connecting rod 73 can be taken out, so that there is no need to tighten the bolts when removing the reactive compensation device, thereby improving the convenience of maintenance.

[0044] Optionally, in some embodiments, see Figure 3-Figure 6 The fixing assembly 8 also includes a fixing plate 81, the top of which is fixedly connected to two symmetrically distributed fixing side plates 82, a plurality of slide grooves 84 are opened at the outer end of the fixing side plate 82, and a plurality of slots 83 are opened at the outer end of the fixing side plate 82.

[0045] The outer end of the fixed ring 85 is fixedly connected to a mounting bracket 87, and the mounting bracket 87 is fixedly installed on the top of the fixed plate 81 by bolts. The bottom end of the fixed ring 85 is fixedly connected to a fixing rod 88, and the fixing rod 88 is fixedly connected to a limiting block 89 on the side away from the fixed ring 85. The bottom end of the movable ring 86 is provided with a movable groove adapted to the fixed rod 88. The movable ring 86 is slidingly connected to the fixed rod 88 through the movable groove. The limiting block 89 is arranged in an arc shape, and the limiting block 89 abuts against the outer end of the movable ring 86.

[0046] The fixed assembly 8 also includes a fixed shell 811, the outer end of the movable ring 86 is fixedly connected to a pressure rod 810, the fixed shell 811 is fixedly installed on the outer end of the fixed side plate 82, and a telescopic spring 812 is arranged inside the fixed shell 811. One end of the pressure rod 810 extends to the inside of the fixed shell 811, and one end of the pressure rod 810 is fixedly connected to the telescopic spring 812.

[0047] The connecting plate 71 in this solution is fixed to the bottom of the outer shell 1, and a plurality of equally distributed connecting blocks 72 are fixed on the edges of both sides of the bottom of the connecting plate 71. A connecting rod 73 is fixed between every two connecting blocks 72. The connecting rod 73 is mainly used to connect to the fixing component 8. The fixing component 8 needs to be installed in the electrical cabinet or a place where the reactive compensation device can be installed. The fixing plate 81 needs to be fixed in advance by bolts. Fixed side plates 82 are fixed on both sides of the top of the fixing plate 81. A plurality of slots 83 and slide grooves 84 are provided on the fixed side plates 82. The slots 83 are mainly used to allow the connecting rod 73 to be installed It is installed between the fixed ring 85 and the movable ring 86, and the slide groove 84 is used to enable the movable rod 813 to slide after being connected to the pull rod 91. The fixed ring 85 is installed on the fixed plate 81 through the mounting bracket 87 fixed at the bottom. A fixed rod 88 is also fixed at the bottom of the fixed ring 85. The movable ring 86 moves on the fixed rod 88 through the movable groove opened at the bottom. A limiting block 89 is fixed at the end of the fixed rod 88. The limiting block 89 is mainly used to limit the movable ring 86 so that it is always located on the fixed rod 88. The limiting block 89 is set in an arc shape, which can just fit with the outer side of the movable ring 86.

[0048] A pressure rod 810 is fixed on the outside of the movable ring 86, and the fixed shell 811 is fixed on the fixed side plate 82. The pressure rod 810 extends to the inside of the fixed shell 811 and is connected to the telescopic spring 812. Through the force of the telescopic spring 812, the pressure rod 810 can push the movable ring 86 to fit together with the fixed ring 85 in a static state. At this time, the connecting rod 73 is located between the fixed ring 85 and the movable ring 86, so it can be fixed. The two pull rods 91 are respectively connected to the movable rods 813 on the two rows of movable rings 86. When the handle 92 is pulled backward, the two pull rods 91 will uniformly drive the two rows of movable rings 86 to move backward, so that the movable ring 86 is away from the fixed ring 85, and the connecting rod 73 can be taken out. When the reactive compensation device needs to be disassembled for maintenance, there is no need to unscrew the bolts, only the handle 92 needs to be pulled, thereby improving the convenience of maintenance.

[0049] Optionally, in some embodiments, see Figure 3 and Figure 4 The pulling assembly 9 includes two pull rods 91, the outer ends of the pull rods 91 are fixedly connected to multiple movable rods 813, the movable rods 813 are slidably connected to the slide grooves 84, and a handle 92 is rotatably connected between the two pull rods 91.

[0050] The pulling assembly 9 further includes a limiting plate 93 , which is fixedly mounted on the outer end of the fixing plate 81 . A limiting groove 94 is defined at one end of the limiting plate 93 , and the limiting groove 94 is adapted to fit the handle 92 .

[0051] A handle 92 is rotatably connected between the two pull rods 91 mentioned above, and a limit plate 93 is fixed at the outer end of the fixed plate 81. A limit slot 94 is provided on the limit plate 93. When the user needs to remove the reactive compensation device and pulls the handle 92, the handle 92 can be rotated downward after pulling so that the handle 92 can be stuck in the limit slot 94, so that the movable ring 86 and the fixed ring 85 can always be kept separated, which is convenient for the user to operate alone.

[0052] Working principle: When using the device, first, the outer shell 1 and the connecting component 7 need to be installed on the fixed component 8. The fixed component 8 is pre-installed in the electrical cabinet. In the static state, the pressure rod 810 can push the movable ring 86 to fit with the fixed ring 85 through the force of the telescopic spring 812. At this time, the connecting rod 73 is located between the fixed ring 85 and the movable ring 86, and it can be fixed. When the device needs to be disassembled, first, the handle 92 needs to be pulled backward, and the two pull rods 91 will uniformly drive the two rows of movable rings 86 to move backward, so that the movable ring 86 is away from the fixed ring 85, and then the handle 92 is turned downward so that the handle 92 can be stuck in the limit groove 94, so that the movable ring 86 and the fixed ring 85 can always be kept separated, and the connecting rod 73 can be taken out together with the reactive compensation device, and the operation can be repeated when installing.

[0053] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. An integrated reactive power compensation device, comprising an outer shell (1), characterized in that: A reactor (6) and a capacitor (11) are respectively arranged inside the outer shell (1); a connecting component (7) is arranged at the bottom end of the outer shell (1); a fixing component (8) is arranged at the bottom end of the connecting component (7); a pulling component (9) is arranged at the outer end of the fixing component (8); a circuit breaker (12) is arranged inside the outer shell (1); and a main control device (13) is arranged at the top end of the capacitor (11); The connecting assembly (7) comprises a connecting plate (71), the connecting plate (71) being fixedly mounted on the bottom end of the outer shell (1), a plurality of connecting blocks (72) being fixedly connected on both sides of the bottom end of the connecting plate (71), and a connecting rod (73) being fixedly mounted between two connecting blocks (72); The fixing assembly (8) comprises a plurality of fixed rings (85) and a plurality of movable rings (86), wherein the fixed rings (85) and the movable rings (86) are both arranged in a semicircular shape, and the fixed rings (85) and the movable rings (86) are both adapted to the connecting rod (73), and the outer end of the movable ring (86) is fixedly connected to the movable rod (813).

2. The integrated reactive power compensation device according to claim 1, characterized in that: The outer end of the outer shell (1) is equipped with a display screen (2), the outer end of the display screen (2) is equipped with a plurality of buttons (3), both sides of the outer shell (1) are provided with handles (5), the outer end of the outer shell (1) is equipped with a plurality of communication ports (10), and the outer end of the outer shell (1) is provided with heat dissipation holes (4).

3. The integrated reactive power compensation device according to claim 1, characterized in that: The fixing assembly (8) further comprises a fixing plate (81), the top end of which is fixedly connected to two symmetrically distributed fixing side plates (82), the outer ends of which are provided with a plurality of slide grooves (84), and the outer ends of which are provided with a plurality of slots (83).

4. The integrated reactive power compensation device according to claim 3, characterized in that: The outer end of the fixed ring (85) is fixedly connected to a mounting frame (87), and the mounting frame (87) is fixedly mounted on the top of the fixed plate (81) by bolts. The bottom end of the fixed ring (85) is fixedly connected to a fixed rod (88), and the fixed rod (88) is fixedly connected to a limiting block (89) away from the side of the fixed ring (85). The bottom end of the movable ring (86) is provided with a movable groove adapted to the fixed rod (88), and the movable ring (86) is slidably connected to the fixed rod (88) through the movable groove. The limiting block (89) is arranged in an arc shape, and the limiting block (89) abuts against the outer end of the movable ring (86).

5. The integrated reactive power compensation device according to claim 4, characterized in that: The fixing assembly (8) further comprises a fixing housing (811), the outer end of the movable ring (86) is fixedly connected to a pressure rod (810), the fixing housing (811) is fixedly mounted on the outer end of the fixing side plate (82), a telescopic spring (812) is provided inside the fixing housing (811), one end of the pressure rod (810) extends into the interior of the fixing housing (811), and one end of the pressure rod (810) is fixedly connected to the telescopic spring (812).

6. The integrated reactive power compensation device according to claim 3, characterized in that: The pulling assembly (9) includes two pull rods (91), the outer ends of the pull rods (91) are fixedly connected to the plurality of movable rods (813), the movable rods (813) are slidably connected to the slide grooves (84), and a handle (92) is rotatably connected between the two pull rods (91).

7. The integrated reactive power compensation device according to claim 6, characterized in that: The pulling assembly (9) further comprises a limiting plate (93), wherein the limiting plate (93) is fixedly mounted on the outer end of the fixing plate (81), and a limiting groove (94) is provided at one end of the limiting plate (93), wherein the limiting groove (94) is adapted to the handle (92).

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