Active filtering compensation device of intermediate frequency furnace

Abstract

The utility model relates to the field of intermediate frequency furnace filtering compensation, and discloses an intermediate frequency furnace active filtering compensation device which comprises an active filtering compensation cabinet, a partition plate is fixedly arranged in the active filtering compensation cabinet, and an intermediate frequency furnace active filtering compensator is fixedly arranged at the top of the partition plate; the capacitor switching assembly comprises a hydraulic cylinder, a push plate, a bearing plate, a sliding block, a side plate, an abutting block and a fixing screw rod, the hydraulic cylinder is fixedly installed on the inner wall of the bottom of the active filtering compensation cabinet, a hydraulic rod of the hydraulic cylinder is fixedly connected with the push plate, the sliding block is slidably installed on the push plate, and the bearing plate is fixedly connected with the sliding block. The top of the sliding block is fixedly connected with a bearing plate, and a first containing groove, a second containing groove and a third containing groove are formed in the top of the bearing plate. The utility model has the following advantages and effects: according to three different compensation modes, three capacitors with different specifications can be rapidly replaced, and the use is relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medium frequency furnace filter compensation, in particular to an active filter compensation device for a medium frequency furnace. Background Art

[0002] The existing medium frequency furnace will generate large harmonics during operation. The device will generate high power, generate heat and consume a lot of energy, and will seriously affect the normal operation of other electrical appliances. Therefore, it is necessary to use a filter to eliminate the harmonics. When using filtering energy-saving compensation, compared with a single compensation method, a reactive compensation device that uses multiple compensation methods can choose different compensation methods according to usage conditions for more energy saving.

[0003] At present, the specifications and sizes of capacitors used for phase compensation, split-phase compensation and three-phase compensation are different. It is not very convenient to install capacitors in the compensation device. The installation and disassembly of capacitors are more troublesome, and it is not convenient to quickly replace capacitors according to the needs of the compensation method. Therefore, it is necessary to design a medium frequency furnace active filter compensation device to solve the above problems.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide an active filter compensation device for a medium frequency furnace to solve the above problems.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an active filter compensation device for a medium frequency furnace, comprising:

[0007] An active filter compensation cabinet, wherein a partition is fixedly arranged in the active filter compensation cabinet, and an intermediate frequency furnace active filter compensator is fixedly arranged on the top of the partition;

[0008] A capacitor switching assembly, the capacitor switching assembly includes a hydraulic cylinder, a push plate, a bearing plate, a slider, a side plate, a clamping block and a fixing screw, the hydraulic cylinder is fixedly installed on the bottom inner wall of the active filter compensation cabinet, the hydraulic rod of the hydraulic cylinder is fixedly connected to the push plate, the slider is slidably installed on the push plate, the top of the slider is fixedly connected to the bearing plate, the top of the bearing plate is provided with placement groove 1, placement groove 2 and placement groove 3, the side surface of the side plate is fixedly connected to the side wall of the active filter compensation cabinet, the clamping block is laterally slidably sleeved on the outer side of the side plate, the fixing screw is threadedly installed on the clamping block, a plurality of fixing screw grooves are provided at the bottom of the side plate, and the fixing screw is threadedly connected to the fixing screw groove.

[0009] The utility model is further configured as follows: a capacitor is clamped in the second placement groove, the top of the capacitor is in contact with the tightening block, three groups of positioning cylinders are fixedly provided on the top of the carrier plate, each group of positioning cylinders has two members, two positioning rods are fixedly provided on the bottom of the partition, and the positioning rods are clamped with the middle group of positioning cylinders.

[0010] The utility model is further configured as follows: a control panel is fixedly arranged on the front side of the active filter compensation cabinet, and the control panel is electrically connected to the capacitor and the intermediate frequency furnace active filter compensator through a wire.

[0011] By adopting the above technical solution, the capacitor is connected to the circuit, and then the switch of the control panel is turned on, so that the control panel controls the operation of the active filter compensator of the medium frequency furnace to eliminate the harmonics in the circuit.

[0012] The utility model is further configured as follows: the capacitor is located between two positioning rods.

[0013] The utility model is further configured as follows: the push plate is vertically slidably installed inside the active filter compensation cabinet.

[0014] By adopting the above technical solution, the push plate can be easily and stably moved in the vertical direction.

[0015] The utility model is further configured as follows: a top groove is provided on the top of the push plate, a guide rod is fixedly arranged in the top groove, and a sliding block is slidably sleeved on the outer side of the guide rod.

[0016] By adopting the above technical solution, the slider can move stably in the lateral direction.

[0017] The utility model is further configured as follows: the bottom of the bearing plate is in contact with the push plate.

[0018] The utility model is further configured as follows: a medium frequency furnace circuit connector is fixedly arranged on the active filter compensation cabinet.

[0019] The beneficial effects of the utility model are:

[0020] The utility model starts the hydraulic cylinder by setting a capacitor switching component, so that the capacitor moves down, then quickly takes out the capacitor, puts a capacitor of corresponding specifications into the corresponding placement groove, and moves the capacitor to the middle part, then adjusts the position of the abutting block according to the needs, and finally starts the hydraulic cylinder so that the capacitor abuts against the abutting block, and the positioning rod can be stuck in the positioning cylinder, so that the capacitor is quickly switched;

[0021] The utility model can quickly replace capacitors of three different specifications according to three different compensation modes by means of the capacitor switching assembly, and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 and Figure 2 The utility model is a three-dimensional structural schematic diagram of an active filter compensation device for a medium frequency furnace.

[0024] Figure 3 The utility model discloses a cross-sectional structural diagram of an active filter compensation device for a medium frequency furnace.

[0025] Figure 4 yes Figure 3 Schematic diagram of the structure of part A in .

[0026] In the figure, 1. active filter compensation cabinet; 2. partition; 3. medium frequency furnace active filter compensator; 4. medium frequency furnace circuit connector; 5. control panel; 6. hydraulic cylinder; 7. push plate; 8. load-bearing plate; 9. placement slot one; 10. placement slot two; 11. placement slot three; 12. capacitor; 13. slider; 14. positioning rod; 15. positioning cylinder; 16. side plate; 17. tightening block; 18. fixing screw. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides an active filter compensation device for a medium frequency furnace, comprising:

[0030] An active filter compensation cabinet 1, a partition 2 is fixedly arranged in the active filter compensation cabinet 1, and an intermediate frequency furnace active filter compensator 3 is fixedly arranged on the top of the partition 2;

[0031] The capacitor switching assembly includes a hydraulic cylinder 6, a push plate 7, a bearing plate 8, a slider 13, a side plate 16, a clamping block 17 and a fixing screw 18. The hydraulic cylinder 6 is fixedly mounted on the bottom inner wall of the active filter compensation cabinet 1. The hydraulic rod of the hydraulic cylinder 6 is fixedly connected to the push plate 7. The slider 13 is slidably mounted on the push plate 7. The top of the slider 13 is fixedly connected to the bearing plate 8. The top of the bearing plate 8 is provided with a placement groove 1 9, a placement groove 2 10 and a placement groove 3 11. The side of the side plate 16 is fixedly connected to the side wall of the active filter compensation cabinet 1. The clamping block 17 is laterally slidably sleeved on the outer side of the side plate 16. The fixing screw 18 is threadedly mounted on the clamping block 17. A plurality of fixing screw grooves are provided at the bottom of the side plate 16. The fixing screw 18 is threadedly connected to the fixing screw groove.

[0032] Through the above-mentioned capacitor switching assembly, when the capacitor 12 needs to be switched, the hydraulic cylinder 6 is started to separate the capacitor 12 from the clamping block 17, and then the capacitor 12 is removed, and the stand-by capacitor is placed in the placement slot 1 9 or the placement slot 3 11, and then the supporting plate 8 is pushed to push the stand-by capacitor to the middle position so that the positioning cylinder 15 is aligned with the positioning rod 14, and then the position of the clamping block 17 is adjusted according to the size of the stand-by capacitor, and the clamping block 17 is locked by the fixing screw 18, and finally the hydraulic cylinder 6 is started to make the stand-by capacitor abut against the clamping block 17, and the positioning rod 14 can be inserted into the positioning cylinder 15, and the supporting plate 8 is limited, so that the capacitor 12 can be quickly switched.

[0033] Specifically, a capacitor 12 is mounted in the placement groove 10, and the top of the capacitor 12 is abutted against the clamping block 17. Three groups of positioning cylinders 15 are fixedly provided on the top of the supporting plate 8, and each group of positioning cylinders 15 has two members. Two positioning rods 14 are fixedly provided at the bottom of the partition 2, and the positioning rods 14 are clamped with the middle group of positioning cylinders 15. The capacitor 12 is located between the two positioning rods 14. It should be noted that the arrangement of the positioning rods 14 and the positioning cylinders 15 facilitates the limiting processing of the supporting plate 8 to ensure the stability of the supporting plate 8.

[0034] Specifically, a control panel 5 is fixedly provided on the front side of the active filter compensation cabinet 1, and the control panel 5 is electrically connected to the capacitor 12 and the intermediate frequency furnace active filter compensator 3 through a wire. It should be noted that the capacitor 12 is connected to the circuit, and then the switch of the control panel 5 is turned on, so that the control panel 5 controls the operation of the intermediate frequency furnace active filter compensator 3 to eliminate the harmonics in the circuit.

[0035] Specifically, the push plate 7 is vertically slidably installed inside the active filter compensation cabinet 1. A top groove is opened on the top of the push plate 7. A guide rod is fixedly arranged in the top groove. The slider 13 is slidably sleeved on the outside of the guide rod. It should be noted that this facilitates the stable movement of the slider 13.

[0036] Specifically, the bottom of the bearing plate 8 is in contact with the push plate 7 . It should be noted that the bearing plate 8 is supported.

[0037] Specifically, the active filter compensation cabinet 1 is fixedly provided with an intermediate frequency furnace circuit connector 4. It should be noted that the intermediate frequency furnace circuit is installed on the intermediate frequency furnace circuit connector 4 for connection.

[0038] Working principle:

[0039] S1: When the control panel 5 is connected to the intermediate frequency furnace active filter compensator 3 and the capacitor 12 through wires and the connection mode is electrical connection, the device is powered on, the circuit is installed on the intermediate frequency furnace circuit connector 4 for connection, the capacitor 12 is connected to the circuit, and then the switch of the control panel 5 is turned on, so that the control panel 5 controls the operation of the intermediate frequency furnace active filter compensator 3 to eliminate the harmonics in the circuit;

[0040] S2: The three compensation modes of interphase compensation, split-phase compensation and three-phase common compensation require the use of different capacitors 12. The placement slot 1 9, the placement slot 2 10 and the placement slot 3 11 have different specifications and can correspond to three different capacitors 12 respectively.

[0041] S3: When the capacitor 12 needs to be switched, the hydraulic cylinder 6 is started to move the push plate 7 downward, and the push plate 7 drives the supporting plate 8 to move, so that the capacitor 12 is separated from the abutting block 17. Then the capacitor 12 is removed, and the stand-by capacitor is placed in the placement slot 1 9 or the placement slot 3 11. Then the supporting plate 8 is pushed to push the stand-by capacitor to the middle position, so that the positioning cylinder 15 is aligned with the positioning rod 14. Then, the position of the abutting block 17 is adjusted according to the size of the stand-by capacitor, and the abutting block 17 is locked by the fixing screw 18. Finally, the hydraulic cylinder 6 is started to make the stand-by capacitor abut against the abutting block 17, and the positioning rod 14 can be inserted into the positioning cylinder 15, and the supporting plate 8 is limited. In this way, the capacitor 12 can be quickly switched.

[0042] The above is a detailed introduction to an active filter compensation device for a medium frequency furnace provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An active filter compensation device for a medium frequency furnace, characterized in that: include: An active filter compensation cabinet (1), wherein a partition (2) is fixedly arranged inside the active filter compensation cabinet (1), and an intermediate frequency furnace active filter compensator (3) is fixedly arranged on the top of the partition (2); A capacitor switching assembly, the capacitor switching assembly comprising a hydraulic cylinder (6), a push plate (7), a bearing plate (8), a slider (13), a side plate (16), a clamping block (17) and a fixing screw (18), wherein the hydraulic cylinder (6) is fixedly mounted on the bottom inner wall of an active filter compensation cabinet (1), the hydraulic rod of the hydraulic cylinder (6) is fixedly connected to the push plate (7), the slider (13) is slidably mounted on the push plate (7), the top of the slider (13) is fixedly connected to the bearing plate (8), the top of the bearing plate (8) is provided with a placement groove 1 (9), a placement groove 2 (10) and a placement groove 3 (11), the side of the side plate (16) is fixedly connected to the side wall of the active filter compensation cabinet (1), the clamping block (17) is laterally slidably sleeved on the outer side of the side plate (16), the fixing screw (18) is threadedly mounted on the clamping block (17), the bottom of the side plate (16) is provided with a plurality of fixing screw grooves, and the fixing screw (18) is threadedly connected to the fixing screw grooves.

2. The active filter compensation device for a medium frequency furnace according to claim 1, characterized in that: A capacitor (12) is clamped in the second placement groove (10), and the top of the capacitor (12) is in contact with the abutting block (17). Three groups of positioning cylinders (15) are fixedly arranged on the top of the carrier plate (8), and the number of each group of positioning cylinders (15) is two. Two positioning rods (14) are fixedly arranged on the bottom of the partition plate (2), and the positioning rods (14) are clamped with the middle group of positioning cylinders (15).

3. The active filter compensation device for a medium frequency furnace according to claim 2 is characterized in that: A control panel (5) is fixedly arranged on the front side of the active filter compensation cabinet (1), and the control panel (5) is electrically connected to the capacitor (12) and the intermediate frequency furnace active filter compensator (3) via a wire.

4. The active filter compensation device for a medium frequency furnace according to claim 2 is characterized in that: The capacitor (12) is located between two positioning rods (14).

5. The active filter compensation device for a medium frequency furnace according to claim 1, characterized in that: The push plate (7) is vertically slidably installed inside the active filter compensation cabinet (1).

6. The medium frequency furnace active filter compensation device according to claim 1, characterized in that: The push plate (7) is provided with a top groove at the top, a guide rod is fixedly arranged in the top groove, and a sliding block (13) is slidably sleeved on the outer side of the guide rod.

7. The medium frequency furnace active filter compensation device according to claim 1, characterized in that: The bottom of the bearing plate (8) is in contact with the push plate (7).

8. The medium frequency furnace active filter compensation device according to claim 1, characterized in that: An intermediate frequency furnace circuit connector (4) is fixedly arranged on the active filter compensation cabinet (1).

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