High-voltage switch cabinet for 100 megawatt thermal power

Abstract

The utility model relates to the technical field of high-voltage switch cabinets, discloses a high-voltage switch cabinet for 100 megawatt thermal power, and solves the problem that the detection efficiency becomes poor when a worker holds a detection device in hand to sequentially detect a contact connection structure. The switch cabinet body is matched with a first square groove formed in the cabinet body, a second square groove communicated with the upper portion, a first containing disc of the containing assembly and a second clamping block on one side of the containing assembly, a first threaded groove is formed in the upper end of the first square groove, a rotating block is screwed into the first threaded groove, and a clamping piece at one end of the rotating block is matched with a clamping groove in a clamping plate. During maintenance, the clamping sheet which initially forms an angle of 90 degrees with the clamping plate is rotated, so that the clamping plate is moved out of the clamping groove, the handle is pulled, and the placing disc is rotated to form an angle of 90 degrees with the cabinet shell, so that a worker can conveniently place a detection device on the placing disc, the contact connection structure can be rapidly maintained, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high voltage switch cabinet technical field, concretely is a kind of 100 megawatt thermal power high voltage switch cabinet. BACKGROUND

[0002] In modern power supply system, 100 megawatt thermal power project is the important support of guaranteeing power stable supply, and it generates electricity by burning fossil fuel to drive steam turbine and generator, and the generated electric energy needs to be transported to power grid through complex links, and high voltage switch cabinet is the key equipment of power system, and it undertakes the heavy responsibility of on-off, control and protection in 100 megawatt thermal power project, and in early stage, the high voltage switch cabinet technology in such thermal power project is limited, and traditional relay control is adopted, and the response speed, control accuracy and reliability are insufficient, and the protection action may be delayed when power failure occurs, and the influence of fault is enlarged, and with the development of power technology, the performance requirements are continuously improved, and it not only needs to cope with larger power load and complex working conditions, but also needs to have intelligent function.

[0003] The existing Chinese patent with publication number CN208690812U discloses a kind of high voltage switch cabinet, under normal state, first heat dissipation hole is used to flow through air in cabinet body and outside air, realizes heat dissipation, when the overall heat of cabinet body is relatively high, middle shell can be manually moved, air in the body layer can flow through second heat dissipation hole and outside air, and heat dissipation effect is strengthened, it needs to be mentioned that when the heat dissipation demand of first heat dissipation hole is met, middle shell and outer shell are matched, and have dustproof and supporting effect.When middle shell is extracted from outer shell, the heat dissipation degree of cabinet body can be adjusted by moving the plate.

[0004] For the related technology in the above, since 100 megawatt thermal power is large, short-circuit current is large, part of switch cabinet bus, contact connection structure cannot withstand huge electric power and heat when short-circuit, causing contact fusion welding, busbar deformation, and it needs to be replaced and repaired frequently, when artificial maintenance is carried out on damaged contact connection structure, the detection efficiency will be poor by holding detection device in turn by staff, and the recovery time of normal operation of equipment is affected. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of 100 megawatt thermal power high voltage switch cabinet, and the device is used to work, so as to solve the problem that the detection efficiency will be poor by holding detection device in turn by staff, and the recovery time of normal operation of equipment is affected.

[0006] To achieve the above object, the utility model provides following technical scheme: a kind of 100 megawatt thermal power high voltage switch cabinet, including switch cabinet body, the lower end of switch cabinet body is provided with fixed base, and switch cabinet body includes cabinet shell, the inside of cabinet shell is provided with multiple groups of placing assembly, and multiple groups of square groove one are opened in the inside of cabinet shell, square groove two is opened in the upper end of square groove one, and square groove one and square groove two are communicated, and square groove one and square groove two are matched with placing assembly;Placing assembly includes placing disc, and placing disc is matched with square groove one, and the side of placing disc is fixedly installed with clamp block, and clamp block is matched with square groove two, and two sides of clamp block are provided with circular groove, and multiple groups of thread groove one are opened in the inside of cabinet shell, and thread groove one is located in the upper end of square groove one, and rotating block is screw-mounted in the inside of thread groove one, and the end of rotating block away from thread groove one is fixedly installed with clamp piece, and two groups of square groove three are opened in the inside of square groove two, and elastic clamp piece is fixedly installed in the inside of square groove three, and elastic clamp piece is matched with circular groove, and handle is fixedly installed on the side of placing disc, and two groups of clamp plate are fixedly installed on the side of placing disc, and clamp slot is opened on clamp plate, and clamp slot is matched with clamp piece, and clamp slot is matched with rotating block, when needing to overhaul damaged contact connection structure, since clamp piece and clamp plate are connected with 90 ° in initial state, by rotating clamp piece, clamp plate can be removed by clamp slot, by pulling handle, clamp block on the upper end of placing disc is separated from the clamp of elastic clamp piece, so that placing disc is arranged with 90 ° with cabinet shell, by placing detector on the nearest placing disc by staff, in succession contact connection structure can be checked by detector, and the overhaul of damaged contact connection structure can be completed quickly, and work efficiency is improved.

[0007] Preferably, the upper end of the cabinet shell is provided with a shielding plate, the inside of the cabinet shell is fixedly installed with a heat sink, and one side of the cabinet shell is hingedly installed with a protection door. By opening the protection door, each component inside the cabinet shell can be overhauled, and the heat sink can be used for heat dissipation of the components.

[0008] Preferably, a plurality of insulating plates are fixedly installed on the heat sink. The insulating plates can be used for insulating treatment of the components on the heat sink, so as to prevent the components from causing damage to the cabinet shell due to short circuit.

[0009] Preferably, a visual window is opened in the upper end of the protection door, and a temperature sensor is fixedly installed on the inner side of the protection door. The temperature sensor can be used for real-time detection of the temperature inside the cabinet shell, so as to prevent damage to the components inside the cabinet shell due to high temperature. In addition, the visual window can be used for checking the inside of the cabinet shell.

[0010] Preferably, a heat dissipation groove is opened on the cabinet shell, a fan is fixedly installed on the outer side of the heat dissipation groove, and the heat dissipation groove is located inside the heat sink. When the temperature sensor detects that the temperature inside the cabinet shell is too high, the fan can be started to cool the heat sink and the components.

[0011] Preferably, a plurality of groups of bolts are threadedly mounted on the fixed base, a plurality of groups of threaded grooves two are formed on the cabinet shell, the bolts are matched with the threaded grooves two, a plurality of groups of threaded grooves three are formed on the lower end of the fixed base, support legs are threadedly mounted in the threaded grooves three, and the lower end of each support leg is fixedly mounted with a buffer pad.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The 100-megawatt high-voltage switch cabinet for thermal power provided by the utility model can quickly complete the maintenance of the damaged contact connection structure and improve work efficiency when the contact connection structure needs to be maintained. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the switch cabinet body of the 100-megawatt high-voltage switch cabinet for thermal power.

[0015] Figure 2 It is an internal structure schematic view of the switch cabinet body of the 100-megawatt high-voltage switch cabinet for thermal power.

[0016] Figure 3 It is an internal structure schematic view of the switch cabinet body of the 100-megawatt high-voltage switch cabinet for thermal power.

[0017] Figure 4 It is a structure schematic view of the cabinet shell and the placing assembly of the 100-megawatt high-voltage switch cabinet for thermal power.

[0018] Figure 5 It is a structure schematic view of the cabinet shell and the placing assembly of the 100-megawatt high-voltage switch cabinet for thermal power.

[0019] Figure 6 It is an internal structure schematic view of the cabinet shell and the placing assembly of the 100-megawatt high-voltage switch cabinet for thermal power.

[0020] Figure 7 It is an enlarged structure schematic view of position A of the 100-megawatt high-voltage switch cabinet for thermal power.

[0021] Figure 8 It is the cabinet shell and fan part structure schematic view of 100 megawatt high voltage switch cabinet for thermal power of the utility model;

[0022] Figure 9 It is the fixed base structure schematic view of 100 megawatt high voltage switch cabinet for thermal power of the utility model.

[0023] In the drawing: 1, switch cabinet body;11, cabinet shell;111, threaded slot two;112, square groove one;113, square groove two;114, square groove three;1141, elastic clamping piece;115, threaded slot one;116, heat dissipation groove;12, heat dissipation groove;13, heat dissipation plate;131, insulating plate;14, protection door;141, visible window;142, temperature sensor;15, placing assembly;151, placing disc;152, clamping block;1521, round groove;153, rotating block;1531, clamping piece;154, handle;155, clamping plate;1551, clamping groove;16, fan;2, fixed base;21, bolt;22, threaded slot three;23, support leg;231, buffer pad. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] In order to further understand the content of the utility model, the utility model will be described in detail with reference to the drawings.

[0026] In combination with Figures 1-7The utility model provides a kind of 100 megawatt high-voltage switch cabinet for thermal power, including switch cabinet body 1, the lower end of switch cabinet body 1 is provided with fixed base 2, switch cabinet body 1 includes cabinet shell 11, the inside of cabinet shell 11 is provided with multiple groups of placing assembly 15, multiple groups of square groove one 112 are opened in the inside of cabinet shell 11, square groove two 113 is opened in the upper end of square groove one 112, square groove one 112 is communicated with square groove two 113, square groove one 112 and square groove two 113 are matched with placing assembly 15;Placing assembly 15 includes placing disc 151, placing disc 151 is matched with square groove one 112, clamping and block 152 are fixedly installed on the side of placing disc 151, clamping and block 152 are matched with square groove two 113, two circular grooves 1521 are opened in the two sides of clamping and block 152, multiple groups of screw grooves one 115 are opened in the inside of cabinet shell 11, screw groove one 115 is located in the upper end of square groove one 112, rotating block 153 is screw-mounted in the inside of screw groove one 115, clamping and piece 1531 is fixedly installed on the end of rotating block 153 away from screw groove one 115, two groups of square groove three 114 are opened in the inside of square groove two 113, elastic clamping and piece 1141 is fixedly installed in the inside of square groove three 114, elastic clamping and piece 1141 is matched with circular groove 1521, handle 154 is fixedly installed on the side of placing disc 151, two groups of clamping and plate 155 are fixedly installed on the side of placing disc 151, clamping and groove 1551 is opened on clamping and plate 155, clamping and groove 1551 is matched with clamping and piece 1531, clamping and groove 1551 is matched with rotating block 153, when needing to overhaul damaged contact connection structure, since clamping and piece 1531 and clamping and plate 155 are connected with 90 ° in initial state, by rotating clamping and piece 1531, clamping and plate 155 can be removed by clamping and groove 1551, by pulling handle 154, clamping and block 152 on the upper end of placing disc 151 is separated from the clamping of elastic clamping and piece 1141, so that placing disc 151 is arranged with 90 ° with cabinet shell 11, by placing detector on the nearest placing disc 151 by staff, in turn, the contact connection structure can be checked by detection device, and the overhaul of damaged contact connection structure is quickly completed, and the work efficiency is improved.

[0027] In combination Figures 1-2 The upper end of cabinet shell 11 is provided with a shielding plate 12, the inside of cabinet shell 11 is fixedly installed with a heat dissipation plate 13, one side of cabinet shell 11 is hingedly installed with a protection door 14, by opening the protection door 14, each component inside the cabinet shell 11 is overhauled, and at the same time, the heat dissipation plate 13 is used for heat dissipation treatment of each component.

[0028] In combination Figures 2-3 The upper end of cabinet shell 11 is provided with a shielding plate 12, the inside of cabinet shell 11 is fixedly installed with a heat dissipation plate 13, one side of cabinet shell 11 is hingedly installed with a protection door 14, by opening the protection door 14, each component inside the cabinet shell 11 is overhauled, and at the same time, the heat dissipation plate 13 is used for heat dissipation treatment of each component.

[0029] Combination Figure 2 The upper end of the protective door 14 is provided with a viewing window 141, and a temperature sensor 142 is fixedly installed on the inner side of the protective door 14. The temperature sensor 142 can detect the temperature inside the cabinet shell 11 in real time to prevent the components inside the cabinet shell 11 from being damaged due to excessive temperature. At the same time, the inside of the cabinet shell 11 can be viewed through the viewing window 141.

[0030] Combination Figure 2 , Figure 8 The cabinet shell 11 has a heat dissipation groove 116. A fan 16 is fixedly installed on the outside of the heat dissipation groove 116. The heat dissipation groove 116 is located inside the heat dissipation plate 13. When the temperature sensor 142 detects that the internal temperature of the cabinet shell 11 is too high, the fan 16 is started to cool down the heat dissipation plate 13 and at the same time, the components are cooled down.

[0031] Combination Figure 1 , Figure 9 The fixed base 2 has multiple sets of bolts 21 threaded on it, and the cabinet shell 11 has multiple sets of threaded grooves 111. The bolts 21 match the threaded grooves 111. The lower end of the fixed base 2 has multiple sets of threaded grooves 22. The internal threads of each threaded groove 22 are threaded with support legs 23. The lower end of each support leg 23 is fixedly installed with a buffer pad 231. The height of each support leg 23 can be adjusted by the threaded grooves 22 at the lower end of the fixed base 2, reducing the impact of uneven road surfaces on the operation of the components inside the cabinet shell 11. The fixed base 2 is fixed to the cabinet shell 11 by the bolts 21, thus protecting the cabinet shell 11.

[0032] Working principle: The fixed base 2 at the lower end of the switch cabinet body 1 is fixed to the threaded groove 111 on the cabinet shell 11 by bolts 21. The support leg 23 in the threaded groove 22 at the lower end of the fixed base 2 is height adjustable, and the buffer pad 231 reduces the impact of uneven road surface. The placement tray 151 of the component 15 inside the cabinet shell 11 matches the square groove 112, the clip and block 152 matches the square groove 113, the round groove 1521 matches the elastic clip and piece 1141, and the rotating block 153 is threaded into the threaded groove 115. Its clip and piece 1531 matches the clip and plate 155. The card and slot 1551 are matched. During maintenance, the card and plate 1531 are rotated to move the card and plate 155 out. The pull handle 154 can set the placement tray 151 at 90° so that the maintenance equipment can be placed on the placement tray 151 to maintain the contact connection structure. The upper end of the cabinet shell 11 is protected by the shielding plate 12. The heat sink 13 dissipates heat from the internal components. The insulation plate 131 is insulated. The protective door 14 can be opened for maintenance. The viewing window 141 makes it easy to see the inside. The temperature sensor 142 detects the temperature. When the temperature is too high, the fan 16 on the outside of the heat sink 116 cools the heat sink 13 and the components.

[0033] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A high voltage switchgear for 100 MW thermal power plants, characterized in that: Including switch cabinet body, the lower end of the switch cabinet body is provided with a fixed base, the switch cabinet body includes a cabinet shell, the inside of the cabinet shell is provided with a plurality of groups of placing components, a plurality of groups of square grooves one are opened in the inside of the cabinet shell, square grooves two are opened in the upper end of the square groove one, the square groove one and the square groove two are communicated, the square groove one and the square groove two are matched with the placing component; The placing component includes a placing disc, the placing disc is matched with the square groove one, a side of the placing disc is fixedly installed with a clamping and block, the clamping and block is matched with the square groove two, both sides of the clamping and block are provided with a circular groove, a plurality of groups of screw grooves one are opened in the inside of the cabinet shell, the screw groove one is located in the upper end of the square groove one, a rotating block is screwedly installed in the inside of the screw groove one, a side, away from the screw groove one, of the rotating block is fixedly installed with a clamping and piece, two groups of square grooves three are opened in the inside of the square groove two, the clamping and piece is fixedly installed in the inside of the square groove three, the clamping and piece is matched with the circular groove, a side of the placing disc is fixedly installed with a handle, two groups of clamping and plates are fixedly installed on one side of the placing disc, a clamping and groove is opened in the clamping and plate, the clamping and groove is matched with the clamping and piece, and the clamping and groove is matched with the rotating block.

2. The high voltage switchgear for 100 MW thermal power plants as claimed in claim 1 wherein: The upper end of the cabinet shell is provided with a shielding plate, the inside of the cabinet shell is fixedly installed with a heat dissipation plate, and the side of the cabinet shell is hingedly installed with a protection door.

3. The high voltage switchgear for 100 MW thermal power plants as claimed in claim 2 wherein: A plurality of groups of insulating plates are fixedly installed on the heat dissipation plate.

4. The high voltage switchgear for 100 MW thermal power plants as claimed in claim 2 wherein: A visual window is opened in the upper end of the protection door, and a temperature sensor is fixedly installed on the inner side of the protection door.

5. The 100 MW high voltage switchgear for thermal power plants as claimed in claim 2 wherein: A heat dissipation groove is opened in the cabinet shell, a fan is fixedly installed outside the heat dissipation groove, and the heat dissipation groove is located in the inside of the heat dissipation plate.

6. The 100 MW high voltage switchgear for thermal power plants as claimed in claim 1 wherein: A plurality of groups of bolts are screwedly installed on the fixed base, a plurality of groups of screw grooves two are opened in the cabinet shell, the bolts are matched with the screw grooves two, a plurality of groups of screw grooves three are opened in the lower end of the fixed base, and supporting legs are screwedly installed in the inside of the screw grooves three.

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