Large-scale direct-current disconnecting link frame heating treatment device

Abstract

The utility model relates to the technical field of heating processing devices, in particular to a heating processing device for a large-scale direct-current disconnecting link frame. The device comprises a horizontally-arranged insulation sole timber I, a supporting column is vertically and upwards arranged in the middle of the insulation sole timber I, and an insulation sole timber II is transversely arranged on the top of the supporting column; two groups of lifting rods are symmetrically arranged at the top of the insulating sole timber II, and insulating sole timbers III are respectively arranged at the tops of the lifting rods; the insulating sole timber II and the two groups of lifting rods form a U-shaped structure together, the jack is located at the bottom of the insulating sole timber I, and the insulating sole timber III supports a heating large-scale direct-current disconnecting link frame. According to the utility model, through the insulation isolation and jacking structure, iron parts between the DC knife switch frame and the channel steel are separated, so that heat generated by electromagnetic induction is eliminated, and safe operation of equipment is guaranteed; the operation is simple, a large amount of manpower is saved, the safety is greatly improved, and the personnel safety can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment devices, in particular to a large-scale DC knife switch frame heat treatment device. Background Art

[0002] The large DC knife switch used in the rectifier unit undertakes the important task of supplying large current to the raw material workshop, so electromagnetic induction will inevitably occur around it. This electromagnetic induction will cause discharge to the surrounding iron products. The heat generated during the discharge process is extremely high, even up to 400 degrees Celsius, which poses a serious threat to the safety of the bolts fixing the DC knife switch frame. If this heating problem is not handled in time, it will not only directly threaten the power supply safety of the raw material workshop, but also may affect the safety of the entire power supply series. In addition, since the DC knife switch usually adopts an iron frame, it is heavy and not easy to move, which also increases the difficulty of dealing with the heating problem. Although there are some patents, such as the Chinese patent with authorization announcement number CN203787331U, which discloses an isolation knife switch device for a voltage transformer switch cabinet, the design of which is provided with an insulating column on the rear edge of the upper end of the frame, and a transmission shaft and a main shaft are respectively provided on the adjacent two sides of the bevel gear set. The main shaft is located below the insulating column, and the moving contact is fixedly connected to the crank arm through a connecting rod. However, this solution still has obvious shortcomings. It lacks the necessary lifting and separation mechanism and cannot effectively deal with the heat problem generated by electromagnetic induction. At the same time, in terms of operational convenience and safety, the solution has failed to provide significant optimization measures and is difficult to meet the needs of actual use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a large-scale DC knife switch frame heating treatment device.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A large-scale direct current knife switch frame heating treatment device comprises a horizontally arranged insulating pad I, a support column is vertically arranged upward in the middle of the insulating pad I, and an insulating pad II is horizontally arranged on the top of the support column; two groups of lifting rods are symmetrically arranged on the top of the insulating pad II, and an insulating pad III is arranged on the top of each lifting rod; the insulating pad II and the two groups of lifting rods together form a U-shaped structure, a jack is located at the bottom of the insulating pad I, and a large-scale direct current knife switch frame that generates heat is supported on the insulating pad III.

[0006] This technical solution realizes the separation of iron components between the DC knife switch framework and the channel steel through insulation isolation and a jacking structure to eliminate the heat generated by electromagnetic induction and ensure the safe operation of the equipment. Among them, the insulating wooden blocks, support columns, lifting rods, and jacks form a safe and reliable jacking structure that can lift the DC knife switch framework. At the same time, the use of insulating wooden blocks creates an insulation isolation between the entire jacking structure and the DC knife switch framework, avoiding discharge phenomena caused by electromagnetic induction. When the DC knife switch framework is lifted, insulating components can be placed between the framework and the channel steel to separate the iron components between them, thereby effectively eliminating the heat generated by electromagnetic induction. This treatment method not only reduces the temperature of the DC knife switch framework but also improves the safety of the entire system. Since the DC knife switch undertakes the task of carrying large currents, after long-term operation, its framework will generate a large amount of heat due to electromagnetic induction, seriously threatening the safe operation of the equipment. At this time, this heat treatment device can be used to maintain the DC knife switch framework. First, use the jack to lift the device to an appropriate height to create enough space between the DC knife switch framework and the channel steel. Then, place insulating components between the framework and the channel steel to separate them. The heat generated by electromagnetic induction will be greatly reduced, and the temperature of the DC knife switch framework will also drop rapidly. This can not only ensure the power supply safety in areas such as the raw material workshop but also extend the service life of the DC knife switch and reduce maintenance costs. Since the entire treatment process adopts insulation isolation measures, the safety of the operators is also effectively guaranteed. This technical solution can be widely applied to the maintenance scenarios of large DC knife switches in rectifier units in the power system.

[0007] In addition, according to the above-mentioned large DC knife switch framework heat treatment device of the present invention, it may also have the following additional technical features:

[0008] According to an embodiment of the present invention, the insulating wooden block I, insulating wooden block II, and insulating wooden block III are all made of insulating materials.

[0009] In this technical solution, the use of insulating wooden blocks can prevent operators from directly contacting the live parts when dealing with the DC knife switch framework, reducing the risk of electric shock. In addition, the insulating wooden blocks can also reduce the influence of the electromagnetic field on the surrounding environment and equipment to a certain extent, improving the electromagnetic compatibility of the entire system.

[0010] According to an embodiment of the present invention, the insulating wooden block I and the insulating wooden block II together form a T-shaped structure through the support column.

[0011] In this technical solution, the support column connects the insulating wooden block I and the insulating wooden block II to form a T-shaped structure, which can effectively disperse and bear the weight of the DC knife switch framework and the force generated during jacking. The T-shaped structure makes the entire device more compact and stable, and at the same time, it is also convenient for operators to carry out maintenance and adjustment.

[0012] According to an embodiment of the present utility model, the bearing pressure range of the jack satisfies 1.5T and is used to lift the DC knife switch frame.

[0013] In this technical solution, selecting a jack with a bearing pressure range satisfying 1.5T can ensure that overload or failure does not occur during the lifting process, guaranteeing the safety and reliability of the lifting process.

[0014] According to an embodiment of the present utility model; the large DC knife switch frame is separated from the iron components between the heating treatment device and the channel steel, thereby offsetting the interference of the magnetic field.

[0015] In this technical solution, when the large DC knife switch frame is operating normally, a magnetic field will be generated around it due to the flow of current. The channel steel and its iron components, as conductors, will induce current in the magnetic field, and this phenomenon is called electromagnetic induction. The generation of the induced current will cause heat accumulation, which may not only affect the normal operation of the DC knife switch frame but also cause damage to surrounding equipment; when the iron components are separated, the original magnetic field path is interrupted, the generation of the induced current is inhibited, and thus the generation of heat is reduced; by using the laws of the interaction between electromagnetic induction and the magnetic field, by changing the magnetic field path and inhibiting the generation of the induced current, the purpose of reducing heat, improving the system stability and electromagnetic compatibility is achieved.

[0016] According to an embodiment of the present utility model, the height of the support column is not less than 3.5m and the diameter is not less than 0.4m.

[0017] In this technical solution, to ensure that the support column has sufficient bearing capacity and stability to meet the requirements of the DC knife switch frame lifting operation and guarantee the structural safety and service life of the entire device, a higher support column can ensure that the DC knife switch frame obtains sufficient vertical distance during the lifting process for subsequent maintenance or heat treatment operations; sufficient operating space can also improve the safety and work efficiency of the operators.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] (1) Through the insulation isolation and lifting structure, the separation of the DC knife switch frame from the surrounding iron components is realized, thereby eliminating the heat generated by electromagnetic induction and ensuring the safe operation of the equipment;

[0020] (2) The present utility model has the characteristics of simple operation, high safety, labor saving, etc., ensuring the safety and stability of the raw material workshop and the entire power supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the present utility model.

[0022] In the figure: 1, insulating spacer I; 2, support column; 3, insulating spacer II; 4, lifting rod; 5, insulating spacer III; 6, jack. Detailed implementation mode

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1

[0025] As Figure 1 shown, this embodiment provides a large DC knife switch frame heating treatment device, including a horizontally arranged insulating spacer I 1. A support column 2 is vertically arranged upward in the middle of the insulating spacer I 1. An insulating spacer II 3 is horizontally arranged at the top of the support column 2. Two groups of lifting rods 4 are symmetrically arranged at the top of the insulating spacer II 3. An insulating spacer III 5 is arranged at the top of each lifting rod 4. The insulating spacer II 3 and the two groups of lifting rods 4 together form a U-shaped structure. The jack 6 is located at the bottom of the insulating spacer I 1. The heated large DC knife switch frame is supported on the insulating spacer III 5.

[0026] As Figure 1As shown in the figure, this technical solution realizes the separation of iron components between the DC knife switch frame and the channel steel through insulation isolation and a jacking structure to eliminate the heat generated by electromagnetic induction and ensure the safe operation of the equipment. Among them, the insulating wooden block, the support column 2, the lifting rod 4, and the jack 6 constitute a safe and reliable jacking structure that can lift the DC knife switch frame. At the same time, the use of the insulating wooden block forms insulation isolation between the entire jacking structure and the DC knife switch frame, avoiding the discharge phenomenon caused by electromagnetic induction. After the DC knife switch frame is lifted, insulating parts can be placed between the frame and the channel steel to separate the iron components between the two, thereby effectively eliminating the heat generated by electromagnetic induction. This treatment method not only reduces the temperature of the DC knife switch frame but also improves the safety of the entire system. Since the DC knife switch undertakes the task of carrying large currents, after long-term operation, its frame will generate a large amount of heat due to electromagnetic induction, seriously threatening the safe operation of the equipment. At this time, this heat treatment device can be used to maintain the DC knife switch frame. First, use the jack 6 to lift the device to an appropriate height to form enough space between the DC knife switch frame and the channel steel. Then, place insulating parts between the frame and the channel steel to separate the two. The heat generated by electromagnetic induction will be greatly reduced, and the temperature of the DC knife switch frame will also drop rapidly. This can not only ensure the power supply safety in areas such as the raw material workshop but also extend the service life of the DC knife switch and reduce the maintenance cost. Since the entire treatment process adopts insulation isolation measures, the safety of the operators is also effectively guaranteed. This technical solution can be widely applied to the maintenance scenarios of large DC knife switches in rectifier units in the power system.

[0027] In addition, according to the above-mentioned large DC knife switch frame heat treatment device of the present invention, it may also have the following additional technical features:

[0028] According to an embodiment of the present invention, the insulating wooden block I 1, the insulating wooden block II 3, and the insulating wooden block III 5 are all made of insulating materials.

[0029] In this technical solution, the use of the insulating wooden block can prevent operators from directly contacting the live part when dealing with the DC knife switch frame, reducing the risk of electric shock. In addition, the insulating wooden block can also reduce the influence of the electromagnetic field on the surrounding environment and equipment to a certain extent, improving the electromagnetic compatibility of the entire system.

[0030] According to an embodiment of the present invention, the insulating wooden block I 1 and the insulating wooden block II 3 together form a T-shaped structure through the support column 2.

[0031] In this technical solution, the support column 2 connects the insulating wooden block I 1 and the insulating wooden block II 3 to form a T-shaped structure, which can effectively disperse and bear the weight of the DC knife switch frame and the force generated during jacking. The T-shaped structure makes the entire device more compact and stable, and at the same time, it is also convenient for operators to carry out maintenance and adjustment.

[0032] According to an embodiment of the present utility model, the bearing range of the jack 6 satisfies 1.5T and is used to jack up the DC knife switch frame.

[0033] In this technical solution, selecting a jack 6 with a bearing range satisfying 1.5T can ensure that overload or failure does not occur during the jacking process, guaranteeing the safety and reliability of the jacking process.

[0034] According to an embodiment of the present utility model; the large DC knife switch frame is separated from the iron components between the heat treatment device and the channel steel, thereby offsetting the interference of the magnetic field.

[0035] In this technical solution, when the large DC knife switch frame is operating normally, a magnetic field will be generated around it due to the flow of current. The channel steel and its iron components, as conductors, will induce current in the magnetic field, and this phenomenon is called electromagnetic induction. The generation of the induced current will cause heat accumulation, which in turn leads to a heating problem. This not only may affect the normal operation of the DC knife switch frame but also may cause damage to surrounding equipment; when the iron components are separated, the original magnetic field path is interrupted, the generation of the induced current is suppressed, and thus the generation of heat is reduced; by utilizing the laws of the interaction between electromagnetic induction and the magnetic field, by changing the magnetic field path and suppressing the generation of the induced current, the purpose of reducing heating, improving system stability and electromagnetic compatibility is achieved.

[0036] According to an embodiment of the present utility model, the height of the support column 2 is not less than 3.5m, and the diameter is not less than 0.4m.

[0037] As Figure 1 shown, in this technical solution, to ensure that the support column 2 has sufficient bearing capacity and stability to meet the requirements of the jacking operation of the DC knife switch frame and guarantee the structural safety and service life of the entire device, a higher support column 2 can ensure that the DC knife switch frame obtains sufficient vertical distance during the jacking process for subsequent maintenance or heat treatment operations; sufficient operating space can also improve the safety and work efficiency of the operators.

[0038] The usage process of the above embodiment is as follows:

[0039] Place the large-scale DC knife switch frame heating treatment device at a predetermined position to ensure the stable connection of components such as insulating wooden block I 1, insulating wooden block II 3, insulating wooden block III 5, support column 2, and lifting rod 4 to form a complete jacking structure; check the pressure-bearing range of the jack 6 to ensure that it meets the requirement of 1.5T and confirm that its working state is good; operate the jack 6 to make it start working and slowly jack up the insulating wooden block III 5 and the DC knife switch frame on it; during the jacking process, observe and ensure that the DC knife switch frame maintains stable contact with components such as the support column 2 and the lifting rod 4 to prevent tilting or shaking; continuously operate the jack 6 until enough space is formed between the DC knife switch frame and the lower channel steel; the size of the space should be sufficient to accommodate the operator to place insulating parts to achieve the separation of the iron parts between the DC knife switch frame and the channel steel; the operator enters the formed space and places insulating parts between the DC knife switch frame and the channel steel; the placement of the insulating parts should ensure the complete separation of the iron parts between the DC knife switch frame and the channel steel, thereby eliminating the heat generated by electromagnetic induction; after placing the insulating parts, check the position and stability of the DC knife switch frame to ensure its safety state; if necessary, the jacking structure can be finely adjusted to ensure the best insulation effect between the DC knife switch frame and the channel steel; when it is confirmed that the iron parts between the DC knife switch frame and the channel steel have been completely separated and the jacking structure is stable and reliable, stop operating the jack 6; at this time, the working process of the large-scale DC knife switch frame heating treatment device ends, the temperature of the DC knife switch frame should have been effectively reduced, and the system safety is improved. Although the present utility model has been described in detail by referring to the attached drawings and in combination with the preferred embodiments, the present utility model is not limited thereto. Without departing from the spirit and essence of the present utility model, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present utility model, and these modifications or substitutions should all be within the scope covered by the present utility model / Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the said claims.

Claims

1. A large DC switch frame heat treatment device, characterized in that: The invention comprises a horizontally arranged insulating cushion I (1), a supporting column (2) being arranged vertically upward in the middle of the insulating cushion I (1), and an insulating cushion II (3) being arranged horizontally on the top of the supporting column (2); two groups of lifting rods (4) being symmetrically arranged on the top of the insulating cushion II (3), and insulating cushion III (5) being arranged on the top of each of the lifting rods (4); the insulating cushion II (3) and the two groups of lifting rods (4) together form a U-shaped structure, a jack (6) being located at the bottom of the insulating cushion I (1), and a large-scale heating DC knife switch frame being supported on the insulating cushion III (5).

2. The large DC switch frame heat treatment device according to claim 1, characterized in that: The insulating cushions I (1), the insulating cushions II (3) and the insulating cushions III (5) are all made of insulating materials.

3. The large DC switch frame heat treatment device according to claim 1 or 2, characterized in that: The insulating cushions I (1) and the insulating cushions II (3) form a T-shaped structure together through the support column (2).

4. The large DC switch frame heat treatment device according to claim 1, characterized in that: The pressure bearing range of the jack (6) meets 1.5T and is used to lift the DC switch frame.

5. The large DC switch frame heat treatment device according to claim 1, characterized in that: The large DC knife switch frame is separated from the iron parts between the heat treatment device and the channel steel, thereby offsetting the interference of the magnetic field.

6. The large DC switch frame heat treatment device according to claim 1, characterized in that: The support column (2) has a height of not less than 3.5 m and a diameter of not less than 0.4 m.

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