CN117039695A - Switch cabinet with deformation monitoring and automatic control functions - Google Patents
Switch cabinet with deformation monitoring and automatic control functions Download PDFInfo
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- CN117039695A CN117039695A CN202311248190.4A CN202311248190A CN117039695A CN 117039695 A CN117039695 A CN 117039695A CN 202311248190 A CN202311248190 A CN 202311248190A CN 117039695 A CN117039695 A CN 117039695A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 230000017525 heat dissipation Effects 0.000 claims description 80
- 238000004891 communication Methods 0.000 claims description 43
- 238000001816 cooling Methods 0.000 claims description 23
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
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- 238000010891 electric arc Methods 0.000 abstract 4
- 230000001681 protective effect Effects 0.000 description 43
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- 238000012423 maintenance Methods 0.000 description 3
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- 235000004522 Pentaglottis sempervirens Nutrition 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- Engineering & Computer Science (AREA)
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Abstract
Description
技术领域Technical field
本发明涉及开关柜技术领域,具体为一种具有变形监测及自动控制功能的开关柜。The invention relates to the technical field of switch cabinets, specifically a switch cabinet with deformation monitoring and automatic control functions.
背景技术Background technique
开关柜的主要作用是在电力系统进行发电、输电、配电和电能转换的过程中,进行开合、控制和保护用电设备。开关柜内的部件主要有断路器、隔离开关、负荷开关、操作机构、互感器以及各种保护装置等组成。开关柜的分类方法很多,如通过断路器安装方式可以分为移开式开关柜和固定式开关柜;或按照柜体结构的不同,可分为敞开式开关柜、金属封闭开关柜和金属封闭铠装式开关柜;根据电压等级不同又可分为高压开关柜,中压开关柜和低压开关柜等。The main function of the switchgear is to open and close, control and protect electrical equipment during the power generation, transmission, distribution and power conversion processes of the power system. The components in the switch cabinet mainly include circuit breakers, isolating switches, load switches, operating mechanisms, transformers and various protection devices. There are many ways to classify switch cabinets. For example, they can be divided into removable switch cabinets and fixed switch cabinets according to the circuit breaker installation method; or according to the different cabinet structures, they can be divided into open switch cabinets, metal-enclosed switch cabinets, and metal-enclosed switch cabinets. Armored switchgear; according to different voltage levels, it can be divided into high-voltage switchgear, medium-voltage switchgear and low-voltage switchgear.
开关柜在使用期间,由于外界因素影响,导致开关柜内部会有电弧产生,电弧产生过程附带大量的热量,出现电弧对开关柜内部的空气进行加热,导致空气膨胀,在短时间内部产生温度骤变,以及气压瞬间上升,会对开关柜的连接处造成冲击,导致开关柜变形。During the use of the switch cabinet, due to the influence of external factors, arcs will be generated inside the switch cabinet. The arc generation process is accompanied by a large amount of heat. The arc will heat the air inside the switch cabinet, causing the air to expand and produce a temperature sudden change in the interior of the switch cabinet in a short period of time. Changes and instantaneous rises in air pressure will cause impact on the connections of the switch cabinet, causing the switch cabinet to deform.
发明内容Contents of the invention
本发明的目的在于提供一种具有变形监测及自动控制功能的开关柜,以解决上述背景技术中提出的问题。The purpose of the present invention is to provide a switch cabinet with deformation monitoring and automatic control functions to solve the problems raised in the above background technology.
为了解决上述技术问题,本发明提供如下技术方案:一种具有变形监测及自动控制功能的开关柜,包括柜体,所述柜体的上方安装有散热鳍片,所述散热鳍片贯穿柜体,所述柜体的内部一侧安装有主体,所述主体位于散热鳍片下方,所述柜体内中部安装有引弧网,所述引弧网上安装有若干个金属尖端,所述引弧网与柜体为可拆卸连接,所述引弧网和主体的位置相对应;In order to solve the above technical problems, the present invention provides the following technical solution: a switch cabinet with deformation monitoring and automatic control functions, including a cabinet body, with heat dissipation fins installed above the cabinet body, and the heat dissipation fins penetrate the cabinet body , a main body is installed on one side of the interior of the cabinet, and the main body is located below the heat dissipation fins. An arc-starting net is installed in the middle of the cabinet, and several metal tips are installed on the arc-starting net. The arc-starting net It is detachably connected to the cabinet body, and the position of the arc ignition net corresponds to that of the main body;
所述柜体的内部上方安装有活塞板和控制杆,所述活塞板通过控制杆与柜体活动连接,所述活塞板的外壁尺寸与柜体内的散热鳍片外壁尺寸相匹配;A piston plate and a control rod are installed above the interior of the cabinet. The piston plate is movably connected to the cabinet through the control rod. The outer wall size of the piston plate matches the outer wall size of the cooling fins in the cabinet;
所述控制杆与引弧网之间电性连接,所述控制杆连接引弧网电路上设置有电路保护元件;在使用期间需要在柜体内部填充足量的保护气体,保护气体优选为SF6,主体在工作期间会产生热量,热量在通过保护气体传导至上方的散热鳍片所在的区域,由于散热鳍片贯穿柜体,即一部分散热鳍片位于柜体的外侧,散热鳍片的作用在于不断将柜体内部的热量传导至外界环境中;The control rod is electrically connected to the arc ignition net, and a circuit protection element is provided on the circuit of the control rod connecting the arc ignition net; during use, a sufficient amount of protective gas needs to be filled inside the cabinet, and the protective gas is preferably SF. 6. The main body will generate heat during operation. The heat is conducted to the area where the heat dissipation fins are located above through the protective gas. Since the heat dissipation fins penetrate the cabinet, that is, part of the heat dissipation fins are located on the outside of the cabinet, the role of the heat dissipation fins is It is to continuously conduct the heat inside the cabinet to the external environment;
柜体内主体相对的方向上安装有引弧网,并且引弧网上安装有足量的金属尖端,金属尖端的作用在于:当主体在柜体内部出现放电现象时,电弧更容易被突出尖端所收集,故金属尖端在于限定电弧的终点,避免出现电弧与主体上其它元器件发生接触,同时引弧网与控制杆之间为电性连接,以及引弧网和控制杆之间的电路上设置有电路保护元件,电路保护元件包括电源或者电容,当主体产生电弧时,并且电弧的落点为金属尖端上时,引弧网和控制杆之间的电路将处于连通状态,电路内部的电流在经过电路保护元件后进入电源或者电容中,电源或者电容用于暂时存储多余的电能,并且在电弧产生的同时驱动控制杆带动活塞板向上运动;An arc net is installed in the direction opposite to the main body in the cabinet, and a sufficient number of metal tips are installed on the arc net. The function of the metal tips is: when the main body discharges inside the cabinet, the arc is more easily collected by the protruding tips. , so the metal tip is to limit the end point of the arc to avoid contact between the arc and other components on the body. At the same time, there is an electrical connection between the arc net and the control rod, and there is a circuit between the arc net and the control rod. Circuit protection components include power supplies or capacitors. When the main body generates an arc and the arc falls on the metal tip, the circuit between the arc net and the control rod will be connected, and the current inside the circuit will pass through The circuit protection element then enters the power supply or capacitor. The power supply or capacitor is used to temporarily store excess electrical energy, and when the arc is generated, it drives the control rod to drive the piston plate to move upward;
电弧在产生的过程中,会释放大量的热量,热量被电弧附近的保护气体吸收后,保护气体迅速膨胀,进而使得柜体内部的气压上升,同时活塞板在柜体内部上升,活塞板与柜体的底板之间的距离增加,通过增大保护气体的储存空间,以减小柜体内部的气压上升速率,以及降低气压强度,活塞板上升的过程中,会同步带动柜体内部的保护气体向上运动,同时活塞板相对散热鳍片上升,使得活塞板在上升后,散热鳍片与保护气体的接触面积增大;During the generation of the arc, a large amount of heat will be released. After the heat is absorbed by the protective gas near the arc, the protective gas expands rapidly, causing the air pressure inside the cabinet to rise. At the same time, the piston plate rises inside the cabinet, and the piston plate and the cabinet The distance between the bottom plates of the cabinet is increased, and the storage space of the protective gas is increased to reduce the air pressure rise rate inside the cabinet and reduce the air pressure intensity. During the rising process of the piston plate, it will simultaneously drive the protective gas inside the cabinet. Movement upward, while the piston plate rises relative to the heat dissipation fins, so that after the piston plate rises, the contact area between the heat dissipation fins and the protective gas increases;
柜体内部活塞板下方设置有气压监测元件,通过气压监测元件实时监测柜体内部活塞板下方空间的气压,避免因气体碰撞导致气压上升,使得柜体因气压增大变形。There is an air pressure monitoring element under the piston plate inside the cabinet. The air pressure monitoring element in the space under the piston plate inside the cabinet is used to monitor the air pressure in the space under the piston plate inside the cabinet in real time to avoid the increase in air pressure due to gas collision and the deformation of the cabinet due to the increase in air pressure.
进一步的,所述引弧网的下方设置有气流控制组件,所述引弧网将柜体的内部中间区域进行隔断,所述气流控制组件贯穿柜体上主体所在一侧的内壁,所述气流控制组件位于散热鳍片的正下方,所述气流控制组件用于在柜体内外提供向上运动的气流;引弧网与柜体之间为可拆卸连接,主体在工作之前,需要将引弧网安装在主体所对应的区域,引弧网将主体的前方空间隔断为前后两个区域,同时主体的下方安装有气流控制组件,其中气流控制组件贯穿柜体,气流控制组件在柜体内外两侧产生向上运动的气流,位于柜体的内部向上运动的气流,气流的运动方向上会经过主体所在的区域,由于引弧网上下两端呈连通状态,使得引弧网和主体间隙内部的气流向上运动,反向推动引弧网另一侧的气流向下流动,进而在柜体内部形成循环气流,并且循环气流会经过散热鳍片所在的区域;Further, an air flow control component is provided below the arc ignition net. The arc ignition net isolates the internal middle area of the cabinet. The air flow control component penetrates the inner wall of the side of the cabinet where the main body is located. The control component is located directly below the heat dissipation fins. The airflow control component is used to provide upward movement of airflow inside and outside the cabinet. The arc net and the cabinet are detachably connected. Before the main body is working, the arc net needs to be removed. Installed in the area corresponding to the main body, the arc net divides the space in front of the main body into two areas, front and rear. At the same time, an air flow control component is installed below the main body. The air flow control component runs through the cabinet and the air flow control components are on both sides of the cabinet inside and outside. An upward-moving airflow is generated inside the cabinet. The direction of movement of the airflow will pass through the area where the main body is located. Since the upper and lower ends of the arc-starting net are connected, the airflow inside the gap between the arc-starting net and the main body is upward. Movement, reversely pushes the airflow on the other side of the arc net to flow downward, thereby forming a circulating airflow inside the cabinet, and the circulating airflow will pass through the area where the heat dissipation fins are located;
位于柜体外侧的气流控制组件同步产生向上运动的气流,气流经过会经过柜体外侧散热鳍片所在的区域,以便于散热鳍片上所携带的热量快速流失,柜体外侧的气流单向运动,柜体内部的保护气体呈内循环状态,两种气流状态相互配合,以加速主体工作期间产生的热量快速散发。The airflow control component located on the outside of the cabinet synchronously generates upward-moving airflow. The airflow will pass through the area where the heat dissipation fins are located on the outside of the cabinet, so that the heat carried on the heat dissipation fins can be quickly lost. The airflow on the outside of the cabinet moves in one direction. The protective gas inside the cabinet is in an internal circulation state, and the two airflow states cooperate with each other to accelerate the rapid dissipation of the heat generated during the operation of the main body.
进一步的,所述气流控制组件包括壳体和四个单向阀,四个所述单向阀分别位于壳体两端的上下两侧,所述壳体贯穿柜体,所述壳体内部设置有滑板和驱动杆,所述驱动杆位于滑板的前后两端,所述滑板通过驱动杆与壳体相连接,所述滑板的外壁尺寸与壳体的内壁尺寸相匹配;四个单向阀的作用在于限制气流的输入和输出的位置,位于壳体下方的单向阀仅能实现气流由外进入单向阀内,同时位于壳体上方的单向阀仅能实现气流由壳体内离开,驱动杆推动滑板在壳体内水平往复运动,滑板将壳体隔断为前后两个空间,并且每个空间上下两侧均设置有一个单向阀,两个空间分别与柜体内外两侧空间相连,当滑板在壳体内部水平滑动期间,滑板两侧的空间体积在不断地发生变化,当空间体积在持续增大期间,空间内部的气压下降,壳体外侧的气流即可通过空间一侧下方的单向阀进入空间中,以保持空间内部的气压平衡,随后当空间体积在持续减小时,空间内部的气压上升,以使得空间内部的气流通过空间一侧上方的单向阀离开,驱动杆持续工作,以保持柜体内外两侧存在气流运动,配合散热鳍片加速主体热量散发;Further, the air flow control assembly includes a housing and four one-way valves. The four one-way valves are located on the upper and lower sides of both ends of the housing. The housing penetrates the cabinet, and there is a The sliding plate and the driving rod, the driving rod is located at the front and rear ends of the sliding plate, the sliding plate is connected to the housing through the driving rod, the outer wall size of the sliding plate matches the inner wall size of the housing; the functions of the four one-way valves It is a position that limits the input and output of air flow. The one-way valve located below the casing can only realize the air flow entering the one-way valve from the outside. At the same time, the one-way valve located above the casing can only realize the air flow leaving the casing. The driving rod The sliding plate is pushed to move horizontally in the housing. The sliding plate divides the housing into two spaces, the front and rear, and a one-way valve is provided on the upper and lower sides of each space. The two spaces are respectively connected to the spaces on both sides of the cabinet inside and outside. When the sliding plate During the horizontal sliding inside the shell, the volume of the space on both sides of the skateboard is constantly changing. When the volume of the space continues to increase, the air pressure inside the space decreases, and the airflow outside the shell can pass through the one-way gap under one side of the space. The valve enters the space to maintain the air pressure balance inside the space. Then when the volume of the space continues to decrease, the air pressure inside the space rises, so that the air flow inside the space leaves through the one-way valve above one side of the space, and the driving rod continues to work. To maintain airflow movement on both sides inside and outside the cabinet, and cooperate with the heat dissipation fins to accelerate the heat dissipation of the main body;
柜体内的空间与散热鳍片内的空间相互隔断,柜体内部的空间与气流控制组件内滑板右侧的空间相连通,其次气流控制组件内滑板右侧的空间与外界环境相连通,当滑板在内部左右滑动时,配合壳体左右上下两侧的单向阀,使得壳体内部滑板左右两侧的气流仅能由下至上运动,进而实现实现柜体内部气流内循环,又能实现柜体外侧产生气流运动。The space inside the cabinet and the space inside the cooling fins are separated from each other. The space inside the cabinet is connected with the space on the right side of the slide plate in the air flow control assembly. Secondly, the space on the right side of the slide plate in the air flow control assembly is connected with the outside environment. When the slide plate When sliding left and right inside, with the one-way valves on the left and right sides of the casing, the air flow on the left and right sides of the sliding plate inside the casing can only move from bottom to top, thereby achieving internal air circulation inside the cabinet and achieving the desired effect of the cabinet. Air movement is generated on the outside.
进一步的,所述气流控制组件还包括若干个交流板,所述交流板与驱动杆相平行,交流板为中空结构,并且交流板一侧上下两端设置有开口,所述交流板的中部设置有横板,所述横板和交流板存在有通孔,所述通孔在壳体内远离柜体的一侧;交流板的结构设置,使得滑板两侧的气流运动区域相互啮合,以提高滑板两侧气流之间的热量传递,由于柜体内部的保护气体运动方式为内循环,柜体外侧的气流与外界环境相连通,并且柜体内部存在有始终为放热状态的主体,使得柜体内部温度要始终高于外界的环境温度;Further, the air flow control assembly also includes several communication plates, the communication plates are parallel to the driving rods, the communication plates are hollow structures, and openings are provided at the upper and lower ends of one side of the communication plates, and the middle part of the communication plates is provided with There is a horizontal plate, and there is a through hole in the horizontal plate and the communication plate. The through hole is on the side of the housing away from the cabinet; the structure of the communication plate is such that the air flow areas on both sides of the skateboard mesh with each other to improve the performance of the skateboard. The heat transfer between the air flows on both sides, because the protective gas movement mode inside the cabinet is internal circulation, the air flow outside the cabinet is connected with the external environment, and there is a body inside the cabinet that is always in a heat-releasing state, making the cabinet The internal temperature should always be higher than the outside ambient temperature;
由于交流板为中空结构,并且交流板仅有右侧设置有开口,使得交流板仅与壳体内滑板右侧的空间相连通,由于交流板长达大于滑板水平移动的长度,使得滑板在壳体内部水平运动时,外循环的气流会经过交流板的外壁,同时当内循环气流产生时,内循环气流通过交流板会外循环气流发生接触,实现内循环气流的运动空间和外循环气流的运动空间相互啮合,通过两组气流相互啮合的方式,增大接触面积,提高内外循环气流之间的热量传递效果。Since the AC board is a hollow structure, and only the right side of the AC board is provided with an opening, the AC board is only connected to the space on the right side of the skateboard in the housing. Since the AC board is longer than the horizontal movement length of the skateboard, the skateboard is in the housing. When the internal circulation moves horizontally, the external circulation airflow will pass through the outer wall of the AC plate. At the same time, when the internal circulation airflow is generated, the internal circulation airflow will come into contact with the external circulation airflow through the AC plate, thereby realizing the movement space of the internal circulation airflow and the movement of the external circulation airflow. The spaces mesh with each other, and the two groups of air flows mesh with each other to increase the contact area and improve the heat transfer effect between the internal and external circulating air flows.
进一步的,所述交流板的上方与位于柜体内部上方的单向阀相连通,交流板靠近位于柜体内部下方单向阀的一侧开设有矩形缺口;壳体被滑板隔断为两个空间,其中缺口所在一侧空间与柜体内部的空间连通(下称该空间为内循环空间,壳体内部与外界环境相连通的一侧空间为外循环空间),其中内循环空间中设置有交流板和横板,横板将交流板分隔为上下两个空间,由于交流板和横板之间存在通孔,并且通孔在横板靠近外循环空间所在的一侧,横板和通孔的设置在于改变保护气体在内循环空间中的流动路径;Furthermore, the upper part of the communication plate is connected to the one-way valve located above the inside of the cabinet. A rectangular gap is opened on the side of the communication plate close to the one-way valve located below the inside of the cabinet; the shell is divided into two spaces by a sliding plate. , the space on the side where the gap is located is connected with the space inside the cabinet (hereinafter referred to as the internal circulation space, and the space on the side of the casing connected with the external environment is the external circulation space), in which there is a communication plate and horizontal plate. The horizontal plate separates the AC plate into two spaces, the upper and lower spaces. Since there is a through hole between the AC plate and the horizontal plate, and the through hole is on the side of the horizontal plate close to the outer circulation space, the distance between the horizontal plate and the through hole The setting is to change the flow path of the protective gas in the internal circulation space;
交流板的上端与壳体上方的单向阀相连通,使得交流板的上方为出气端,横板和通孔的设置,实现滑板在改变内循环空间的体积大小时,横板的下方的保护气体需要在横板的导向下穿过通孔,目的在于控制保护气体经过外循环空间所在的范围内,即外循环空间内部气流运动路径与内循环空间内的气流相互啮合,实现保护气体在壳体内部运动期间,保护气体所携带的热量存在有一部分通过交流板传递至外循环空间内的气流上;The upper end of the AC plate is connected to the one-way valve above the shell, so that the upper part of the AC plate is the air outlet. The arrangement of the horizontal plate and the through hole realizes the protection of the lower part of the horizontal plate when the slide plate changes the volume of the internal circulation space. The gas needs to pass through the through hole under the guidance of the horizontal plate. The purpose is to control the protective gas to pass through the range of the outer circulation space. That is, the air flow path inside the outer circulation space meshes with the air flow in the inner circulation space to realize the protection gas in the shell. During the internal movement of the body, part of the heat carried by the protective gas is transferred to the air flow in the external circulation space through the exchange plate;
交流板下方一侧设置有矩形缺口,通过矩形缺口实现壳体内滑板右侧空间与交流板内部空间相连通,并且交流板内的空间与交流板之间的间隙同为连通状态,以便于滑板运动期间改变内循环空间的体积。A rectangular notch is provided on the lower side of the communication board. Through the rectangular notch, the space on the right side of the skateboard in the housing is connected to the internal space of the communication board, and the space in the communication board and the gap between the communication boards are both connected to facilitate the movement of the skateboard. During this period, the volume of the inner circulation space is changed.
进一步的,所述散热鳍片由两部分构成,位于所述柜体外侧的散热鳍片的下方表面为斜面,位于所述柜体内部的散热鳍片与位于所述柜体外侧的散热鳍片相垂直,所述柜体内外两侧的散热鳍片上下两端相连通。Further, the heat dissipation fins are composed of two parts. The lower surface of the heat dissipation fins located on the outside of the cabinet is a bevel. The heat dissipation fins located inside the cabinet and the heat dissipation fins located on the outside of the cabinet. They are perpendicular to each other, and the upper and lower ends of the heat dissipation fins on both sides of the cabinet are connected.
进一步的,所述散热鳍片为热管结构,所述散热鳍片内部设置有绝缘导热层,所述绝缘导热层优选为氧化铝;柜体外侧的散热鳍片与柜体内侧的散热鳍片相垂直,由于柜体外侧散热鳍片的下端表面为斜面,使得柜体外侧散热鳍片内部的工质在冷却液化后掉落,随后沿着散热鳍片内侧的斜面向柜体内侧的散热鳍片所在的一侧运动,柜体内侧散热鳍片中的液化工质在受热后蒸发,蒸发后形成的工质流上升至散热鳍片的内部上方,柜体内外两侧的散热鳍片的上下两端相连通,柜体内外两侧的散热鳍片被柜体的侧板隔断为两部分,由于柜体外侧散热鳍片内部的工质不断地冷却液化,使得柜体外侧散热鳍片内部的气压不断降低,进而需要柜体内侧散热鳍片内部的气态工质不断向另一部散热鳍片内运动,实现工质在两部分散热鳍片内形成运动循环;Further, the heat dissipation fins have a heat pipe structure, and an insulating heat conductive layer is provided inside the heat dissipation fins. The insulating heat conduction layer is preferably alumina; the heat dissipation fins on the outside of the cabinet are in contact with the heat dissipation fins on the inside of the cabinet. Vertical, because the lower end surface of the cooling fins on the outside of the cabinet is a bevel, the working fluid inside the cooling fins on the outside of the cabinet falls after cooling and liquefying, and then follows the slope on the inside of the cooling fins toward the cooling fins on the inside of the cabinet. When the side of the cabinet moves, the liquefied working fluid in the cooling fins on the inside of the cabinet evaporates after being heated. The flow of working fluid formed after evaporation rises to the top of the cooling fins. The upper and lower sides of the cooling fins on both sides of the cabinet are The ends are connected, and the radiating fins on both sides of the cabinet inside and outside are divided into two parts by the side panels of the cabinet. Since the working fluid inside the radiating fins on the outside of the cabinet is continuously cooled and liquefied, the air pressure inside the radiating fins on the outside of the cabinet increases. Continuously lowering, which requires the gaseous working fluid inside the cooling fin on the inside of the cabinet to continuously move into the other cooling fin, so that the working fluid forms a movement cycle in the two parts of the cooling fin;
柜体内部在产生电弧时,活塞板在控制杆的带动下向上运动,使得活塞板下方空间的体积不断增大,柜体内部的保护气体为填充新增加的空间,部分保护气体会向上运动,由于电弧的产生需要空气作为介质,当气流向上运动时,电弧会形成向上运动的偏移,即为开口向下的弧线,由于主体和引弧网的上方为散热鳍片,电弧在上升至散热鳍片所在的区域时,电弧会被散热鳍片所分隔,形成若干个小的电弧,电弧被隔断后,主体和引弧网之间的电流通路消失,部分电弧由于产生的形变较大,使得电弧网的长度增加而主动断开;When an arc occurs inside the cabinet, the piston plate moves upwards driven by the control rod, causing the volume of the space below the piston plate to continue to increase. The protective gas inside the cabinet fills the newly added space, and part of the protective gas will move upward. Since the generation of arc requires air as the medium, when the airflow moves upward, the arc will form an upward movement deflection, that is, an arc with the opening downward. Since there are heat dissipation fins above the main body and the arc net, the arc will rise to When the heat dissipation fins are located in the area, the arc will be separated by the heat dissipation fins, forming several small arcs. After the arc is cut off, the current path between the main body and the arc net disappears, and some arcs are deformed due to large deformation. The length of the arc network is increased and the arc network is actively disconnected;
氧化铝作为散热鳍片的隔层,以使得电弧在接触到散热鳍片后,将电弧与散热鳍片内部的工质相分离。Aluminum oxide acts as a barrier between the heat sink fins, so that after the arc contacts the heat sink fins, the arc is separated from the working fluid inside the heat sink fins.
进一步的,所述活塞板上设置有控制阀,所述活塞板的上方存在有腔室,所述控制阀用于控制腔室和活塞板下方空间的连通状态;当主体需要进行维修,控制杆带动活塞板下降,并且控制阀打开,以便于活塞板下方空间内的部分保护气体转移至腔室中(腔室的体积可主动发生变化),大量保护气体由活塞板下方运动至活塞板上方的空间中,随后关闭控制阀,当柜门打开时,柜体上方空间内的保护气体在活塞板的作用下与活塞板下方的空间相隔断,避免柜门打开时,外界空气与活塞板上方空间内的保护气体发生接触,进而在维修期间保留大量的保护气体,即可打开柜体前方的柜门拆下引弧网,即可对主体进行维修,维修完成后安装引弧网和关闭柜门,对柜体内部的气体进行置换,以至于柜体内的保护气体纯度达标,随后控制杆带动活塞板上升复位,并且控制阀打开,腔室内部的保护气体重新向活塞板下方运动,活塞板和控制阀的结构设置在于:减少维修期间需要填充保护气体的量。Further, a control valve is provided on the piston plate, and there is a chamber above the piston plate. The control valve is used to control the communication state between the chamber and the space below the piston plate; when the main body needs to be repaired, the control rod The piston plate is driven down and the control valve is opened, so that part of the protective gas in the space below the piston plate is transferred to the chamber (the volume of the chamber can actively change), and a large amount of protective gas moves from the bottom of the piston plate to the space above the piston plate. space, and then close the control valve. When the cabinet door is opened, the protective gas in the space above the cabinet is separated from the space below the piston plate by the piston plate, preventing the outside air from interacting with the space above the piston plate when the cabinet door is opened. The protective gas in the cabinet comes into contact, and a large amount of protective gas is retained during the maintenance period. You can open the cabinet door in front of the cabinet and remove the arc net to repair the main body. After the repair is completed, install the arc net and close the cabinet door. , the gas inside the cabinet is replaced so that the purity of the protective gas in the cabinet reaches the standard. Then the control rod drives the piston plate to rise and reset, and the control valve opens. The protective gas inside the chamber moves to the bottom of the piston plate again, and the piston plate and The structure of the control valve is designed to reduce the amount of protective gas that needs to be filled during maintenance.
与现有技术相比,本发明所达到的有益效果是:Compared with the prior art, the beneficial effects achieved by the present invention are:
1、该具有变形监测及自动控制功能的开关柜,通过散热鳍片的设置,柜体内外两侧设置有两组散热鳍片,两组散热鳍片的结构设置,实现两组散热鳍片相互连通,同时配合开关柜内外两侧的温度差异,进而实现两组散热鳍片内部工质构成循环效果,加速开关柜内部产生的热量散发;1. This switch cabinet with deformation monitoring and automatic control functions has two sets of heat dissipation fins on both sides of the inside and outside of the cabinet. The structural arrangement of the two sets of heat dissipation fins enables the two sets of heat dissipation fins to interact with each other. At the same time, it cooperates with the temperature difference between the inside and outside of the switch cabinet to achieve a circulation effect of the working fluid inside the two sets of cooling fins, accelerating the heat dissipation generated inside the switch cabinet;
2、该具有变形监测及自动控制功能的开关柜,通过引弧网、活塞板的设置,金属尖端主动吸引电弧,进而从俯视角度观察,产生的电弧与柜体内的散热鳍片之间相互垂直,随后改变气体密度以及控制气流运动,对电弧进行切割,加速电弧快速消失,同时控制杆和引弧网之间电性连接,当电弧产生时,活塞板快速上升,以避免开关柜内部的气压快速上升,导致开关柜出现形变;2. In this switch cabinet with deformation monitoring and automatic control functions, through the setting of arc net and piston plate, the metal tip actively attracts arc, and then when viewed from a bird's eye view, the generated arc is perpendicular to the heat dissipation fins in the cabinet. , then change the gas density and control the air flow movement to cut the arc and accelerate the arc to disappear quickly. At the same time, the control rod and the arc net are electrically connected. When the arc is generated, the piston plate rises quickly to avoid the air pressure inside the switch cabinet. Rapid rise, causing deformation of the switch cabinet;
3、该具有变形监测及自动控制功能的开关柜,通过气流控制组件的设置,驱动杆带动滑板工作期间,分别在柜体内外两侧形成气流,柜体内部的气流配合引弧网实现气流内循环,壳体内两股气流在运动期间,两股气流的运动空间相互啮合,进而在壳体内部实现两股气流通过交流板实现热量传递,加速柜体内部热量散发。3. In this switch cabinet with deformation monitoring and automatic control functions, through the setting of the air flow control component, the driving rod drives the sliding plate to form air flows on both sides of the cabinet inside and outside respectively. The air flow inside the cabinet cooperates with the arc ignition net to realize the internal air flow. Circulation, during the movement of the two airflows in the casing, the movement spaces of the two airflows mesh with each other, and then the two airflows realize heat transfer inside the casing through the exchange plate, accelerating the heat dissipation inside the cabinet.
附图说明Description of the drawings
附图用来提供对本发明的进一步理解,并且构成说明书的一部分,与发明的实施例一起用于解释本发明,并不构成对本发明的限制。在附图中:The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the invention and do not constitute a limitation of the present invention. In the attached picture:
图1是本发明的柜体主视全剖结构示意图;Figure 1 is a schematic full cross-sectional structural view of the cabinet of the present invention;
图2是本发明的散热鳍片立体结构示意图;Figure 2 is a schematic diagram of the three-dimensional structure of the heat dissipation fin of the present invention;
图3是本发明的散热鳍片主视全剖结构示意图;Figure 3 is a schematic diagram of the front full cross-sectional structure of the heat dissipation fin of the present invention;
图4是本发明的引弧网立体结构示意图;Figure 4 is a schematic three-dimensional structural diagram of the arc net of the present invention;
图5是本发明的壳体主视全剖结构示意图;Figure 5 is a schematic full cross-sectional structural view of the casing of the present invention;
图6是本发明的滑板及交流板立体结构示意图;Figure 6 is a schematic three-dimensional structural diagram of the skateboard and communication board of the present invention;
图7是本发明的单个交流板立体结构示意图;Figure 7 is a schematic three-dimensional structural diagram of a single AC panel of the present invention;
图8是本发明的单个交流板主视全剖结构示意图。Figure 8 is a schematic full cross-sectional structural view of a single AC panel of the present invention.
图中:1、柜体;2、散热鳍片;3、主体;4、引弧网;401、金属尖端;5、活塞板;501、控制阀;502、腔室;6、控制杆;7、气流控制组件;701、壳体;702、单向阀;703、滑板;704、驱动杆;705、交流板;706、横板;707、通孔。In the picture: 1. Cabinet; 2. Cooling fins; 3. Main body; 4. Arc net; 401. Metal tip; 5. Piston plate; 501. Control valve; 502. Chamber; 6. Control rod; 7 , air flow control component; 701, housing; 702, one-way valve; 703, slide plate; 704, drive rod; 705, communication plate; 706, horizontal plate; 707, through hole.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
请参阅图1-图8,本发明提供技术方案:一种具有变形监测及自动控制功能的开关柜,包括柜体1,柜体1的上方安装有散热鳍片2,散热鳍片2贯穿柜体1,散热鳍片2由两部分构成,位于柜体1外侧的散热鳍片2的下方表面为斜面,位于柜体1内部的散热鳍片2与位于柜体1外侧的散热鳍片2相垂直,柜体1内外两侧的散热鳍片2上下两端相连通;Please refer to Figures 1 to 8. The present invention provides a technical solution: a switch cabinet with deformation monitoring and automatic control functions, including a cabinet 1, with heat dissipation fins 2 installed above the cabinet 1, and the heat dissipation fins 2 penetrate the cabinet. The body 1 and the heat dissipation fin 2 are composed of two parts. The lower surface of the heat dissipation fin 2 located outside the cabinet 1 is a slope. The heat dissipation fin 2 located inside the cabinet 1 is in contact with the heat dissipation fin 2 located outside the cabinet 1. Vertical, the upper and lower ends of the cooling fins 2 on both sides of the cabinet 1 are connected;
散热鳍片2为热管结构,散热鳍片2内部设置有绝缘导热层,绝缘导热层优选为氧化铝;The heat dissipation fin 2 is a heat pipe structure, and an insulating heat conductive layer is provided inside the heat dissipation fin 2. The insulating heat conductive layer is preferably alumina;
柜体1内外两侧设置有两组散热鳍片2,两组散热鳍片2的结构设置,实现两组散热鳍片2相互连通,同时配合开关柜内外两侧的温度差异,进而实现两组散热鳍片2内部工质构成循环效果,加速开关柜内部产生的热量散发;There are two sets of heat dissipation fins 2 on both sides of the cabinet 1. The structural arrangement of the two sets of heat dissipation fins 2 enables the two sets of heat dissipation fins 2 to be connected to each other. At the same time, it cooperates with the temperature difference between the inside and outside of the switch cabinet, thereby realizing the two sets of heat dissipation fins 2. The working fluid inside the heat dissipation fin 2 forms a circulation effect and accelerates the heat dissipation generated inside the switch cabinet;
柜体1的内部一侧安装有主体3,主体3位于散热鳍片2下方,柜体1内中部安装有引弧网4,引弧网4上安装有若干个金属尖端401,引弧网4与柜体1为可拆卸连接,引弧网4和主体3的位置相对应;A main body 3 is installed on one side inside the cabinet 1. The main body 3 is located below the heat dissipation fins 2. An arc net 4 is installed in the middle of the cabinet 1. Several metal tips 401 are installed on the arc net 4. The arc net 4 It is detachably connected to the cabinet 1, and the positions of the arc net 4 and the main body 3 correspond to each other;
柜体1的内部上方安装有活塞板5和控制杆6,活塞板5通过控制杆6与柜体1活动连接,活塞板5的外壁尺寸与柜体1内的散热鳍片2外壁尺寸相匹配;A piston plate 5 and a control rod 6 are installed above the interior of the cabinet 1. The piston plate 5 is movably connected to the cabinet 1 through the control rod 6. The outer wall size of the piston plate 5 matches the outer wall size of the cooling fins 2 in the cabinet 1. ;
活塞板5上设置有控制阀501,活塞板5的上方存在有腔室502,控制阀501用于控制腔室502和活塞板5下方空间的连通状态;A control valve 501 is provided on the piston plate 5. There is a chamber 502 above the piston plate 5. The control valve 501 is used to control the communication state between the chamber 502 and the space below the piston plate 5;
控制杆6与引弧网4之间电性连接,控制杆6连接引弧网4电路上设置有电路保护元件;The control rod 6 is electrically connected to the arc starting network 4, and the circuit between the control rod 6 and the arc starting network 4 is provided with a circuit protection element;
金属尖端401主动吸引电弧,进而从俯视角度观察,产生的电弧与柜体1内的散热鳍片2之间相互垂直,随后改变气体密度以及控制气流运动,对电弧进行切割,加速电弧快速消失,同时控制杆6和引弧网4之间电性连接,当电弧产生时,活塞板5快速上升,以避免开关柜内部的气压快速上升,导致开关柜出现形变;The metal tip 401 actively attracts the arc, and when viewed from a bird's eye view, the generated arc is perpendicular to the heat dissipation fins 2 in the cabinet 1. Then the gas density is changed and the air flow movement is controlled to cut the arc and accelerate the arc to disappear quickly. At the same time, the control rod 6 and the arc net 4 are electrically connected. When the arc is generated, the piston plate 5 rises rapidly to prevent the air pressure inside the switch cabinet from rising rapidly, causing the switch cabinet to deform;
引弧网4的下方设置有气流控制组件7,引弧网4将柜体1的内部中间区域进行隔断,气流控制组件7贯穿柜体1上主体3所在一侧的内壁,气流控制组件7位于散热鳍片2的正下方,气流控制组件7用于在柜体1内外提供向上运动的气流;An air flow control component 7 is provided below the arc ignition net 4. The arc ignition net 4 isolates the internal middle area of the cabinet 1. The air flow control component 7 penetrates the inner wall of the cabinet 1 on the side where the main body 3 is located. The air flow control component 7 is located at Directly below the cooling fins 2, the airflow control assembly 7 is used to provide upward movement of airflow inside and outside the cabinet 1;
气流控制组件7包括壳体701和四个单向阀702,四个单向阀702分别位于壳体701两端的上下两侧,壳体701贯穿柜体1,壳体701内部设置有滑板703和驱动杆704,驱动杆704位于滑板703的前后两端,滑板703通过驱动杆704与壳体701相连接,滑板703的外壁尺寸与壳体701的内壁尺寸相匹配;The air flow control assembly 7 includes a housing 701 and four one-way valves 702. The four one-way valves 702 are respectively located at the upper and lower sides of both ends of the housing 701. The housing 701 penetrates the cabinet 1. There are slide plates 703 and 703 inside the housing 701. Driving rod 704. The driving rod 704 is located at the front and rear ends of the sliding plate 703. The sliding plate 703 is connected to the housing 701 through the driving rod 704. The outer wall size of the sliding plate 703 matches the inner wall size of the housing 701;
气流控制组件7还包括若干个交流板705,交流板705与驱动杆704相平行,交流板705为中空结构,并且交流板705一侧上下两端设置有开口,交流板705的中部设置有横板706,横板706和交流板705存在有通孔707,通孔707在壳体701内远离柜体1的一侧;The air flow control assembly 7 also includes several communication plates 705. The communication plates 705 are parallel to the driving rods 704. The communication plates 705 have a hollow structure, and openings are provided at the upper and lower ends of one side of the communication plate 705. A horizontal opening is provided in the middle of the communication plate 705. The plate 706, the horizontal plate 706 and the communication plate 705 have through holes 707, and the through holes 707 are on the side of the housing 701 away from the cabinet 1;
交流板705的上方与位于柜体1内部上方的单向阀702相连通,交流板705靠近位于柜体1内部下方单向阀702的一侧开设有矩形缺口;The top of the communication plate 705 is connected to the one-way valve 702 located above the interior of the cabinet 1. A rectangular gap is opened on the side of the communication plate 705 close to the one-way valve 702 located below the interior of the cabinet 1;
驱动杆704带动滑板703工作期间,驱动杆704为现有技术,驱动杆为气动杆或者液压杆,分别在柜体1内外两侧形成气流,柜体1内部的气流配合引弧网4实现气流内循环,壳体701内两股气流在运动期间,两股气流的运动空间相互啮合,进而在壳体701内部实现两股气流通过交流板705实现热量传递,加速柜体1内部热量散发。When the driving rod 704 drives the sliding plate 703 to work, the driving rod 704 is an existing technology. The driving rod is a pneumatic rod or a hydraulic rod, which forms airflow on both sides of the cabinet 1. The airflow inside the cabinet 1 cooperates with the arc net 4 to realize the airflow. Internal circulation, during the movement of the two airflows in the casing 701, the movement spaces of the two airflows mesh with each other, and then the two airflows realize heat transfer inside the casing 701 through the exchange plate 705, accelerating the heat dissipation inside the cabinet 1.
本发明的工作原理:在使用期间需要在柜体1内部填充足量的保护气体,保护气体优选为SF6,主体3在工作期间会产生热量,热量在通过保护气体传导至上方的散热鳍片2所在的区域,由于散热鳍片2贯穿柜体1,即一部分散热鳍片2位于柜体1的外侧,散热鳍片2的作用在于不断将柜体1内部的热量传导至外界环境中;The working principle of the present invention: During use, a sufficient amount of protective gas needs to be filled inside the cabinet 1. The protective gas is preferably SF 6. The main body 3 will generate heat during operation, and the heat will be conducted to the upper heat dissipation fins through the protective gas. In the area where 2 is located, since the heat dissipation fins 2 penetrate the cabinet 1, that is, a part of the heat dissipation fins 2 is located on the outside of the cabinet 1, the function of the heat dissipation fins 2 is to continuously conduct the heat inside the cabinet 1 to the external environment;
柜体1内主体3相对的方向上安装有引弧网4,并且引弧网4上安装有足量的金属尖端401,金属尖端401的作用在于:当主体3在柜体1内部出现放电现象时,电弧更容易被突出尖端所收集,故金属尖端401在于限定电弧的终点,避免出现电弧与主体3上其它元器件发生接触,同时引弧网4与控制杆6之间为电性连接,控制杆6为现有技术,控制杆为气动杆或者液压杆,以及引弧网4和控制杆6之间的电路上设置有电路保护元件,电路保护元件包括电源或者电容,当主体3产生电弧时,并且电弧的落点为金属尖端401上时,引弧网4和控制杆6之间的电路将处于连通状态,电路内部的电流在经过电路保护元件后进入电源或者电容中,电源或者电容用于暂时存储多余的电能,并且在电弧产生的同时驱动控制杆6带动活塞板5向上运动;An arc net 4 is installed in the cabinet 1 in a direction opposite to the main body 3, and a sufficient amount of metal tips 401 are installed on the arc net 4. The function of the metal tips 401 is: when the main body 3 discharges inside the cabinet 1 When the arc is moved, the arc is more likely to be collected by the protruding tip, so the metal tip 401 is used to define the end point of the arc and avoid contact between the arc and other components on the body 3. At the same time, there is an electrical connection between the arc net 4 and the control rod 6. The control rod 6 is an existing technology. The control rod is a pneumatic rod or a hydraulic rod, and a circuit protection element is provided on the circuit between the arc net 4 and the control rod 6. The circuit protection element includes a power supply or a capacitor. When the main body 3 generates an arc, When, and the landing point of the arc is on the metal tip 401, the circuit between the arc net 4 and the control rod 6 will be in a connected state, and the current inside the circuit enters the power supply or capacitor after passing through the circuit protection element, and the power supply or capacitor It is used to temporarily store excess electrical energy, and drive the control rod 6 to drive the piston plate 5 to move upward when the arc is generated;
电弧在产生的过程中,会释放大量的热量,热量被电弧附近的保护气体吸收后,保护气体迅速膨胀,进而使得柜体1内部的气压上升,同时活塞板5在柜体1内部上升,活塞板5与柜体1的底板之间的距离增加,通过增大保护气体的储存空间,以减小柜体1内部的气压上升速率,以及降低气压强度,活塞板5上升的过程中,会同步带动柜体1内部的保护气体向上运动,同时活塞板5相对散热鳍片2上升,使得活塞板5在上升后,散热鳍片2与保护气体的接触面积增大;During the generation of the arc, a large amount of heat will be released. After the heat is absorbed by the protective gas near the arc, the protective gas expands rapidly, causing the air pressure inside the cabinet 1 to rise. At the same time, the piston plate 5 rises inside the cabinet 1, and the piston The distance between the plate 5 and the bottom plate of the cabinet 1 increases. By increasing the storage space of the protective gas, the air pressure rise rate inside the cabinet 1 is reduced, and the air pressure intensity is reduced. During the rising process of the piston plate 5, the piston plate 5 will be synchronously The protective gas inside the cabinet 1 is driven to move upward, and at the same time the piston plate 5 rises relative to the heat dissipation fins 2, so that after the piston plate 5 rises, the contact area between the heat dissipation fins 2 and the protective gas increases;
引弧网4与柜体1之间为可拆卸连接,主体3在工作之前,需要将引弧网4安装在主体3所对应的区域,引弧网4将主体3的前方空间隔断为前后两个区域,同时主体3的下方安装有气流控制组件7,其中气流控制组件7贯穿柜体1,气流控制组件7在柜体1内外两侧产生向上运动的气流,位于柜体1的内部向上运动的气流,气流的运动方向上会经过主体3所在的区域,由于引弧网4上下两端呈连通状态,使得引弧网4和主体3间隙内部的气流向上运动,反向推动引弧网4另一侧的气流向下流动,进而在柜体1内部形成循环气流,并且循环气流会经过散热鳍片2所在的区域;The arc net 4 is detachably connected to the cabinet 1. Before the main body 3 is working, the arc net 4 needs to be installed in the area corresponding to the main body 3. The arc net 4 divides the front space of the main body 3 into two front and rear spaces. At the same time, an airflow control assembly 7 is installed below the main body 3, where the airflow control assembly 7 penetrates the cabinet 1. The airflow control assembly 7 generates upward airflow on both sides of the cabinet 1 and moves upward inside the cabinet 1. The airflow in the movement direction will pass through the area where the main body 3 is located. Since the upper and lower ends of the arc ignition net 4 are connected, the airflow in the gap between the arc ignition net 4 and the main body 3 moves upward, pushing the arc ignition net 4 in the opposite direction. The airflow on the other side flows downward, thereby forming a circulating airflow inside the cabinet 1, and the circulating airflow will pass through the area where the heat dissipation fins 2 are located;
位于柜体1外侧的气流控制组件7同步产生向上运动的气流,气流经过会经过柜体1外侧散热鳍片2所在的区域,以便于散热鳍片2上所携带的热量快速流失,柜体1外侧的气流单向运动,柜体1内部的保护气体呈内循环状态,两种气流状态相互配合,以加速主体3工作期间产生的热量快速散发;The airflow control component 7 located on the outside of the cabinet 1 synchronously generates an upward-moving airflow. The airflow will pass through the area where the heat dissipation fins 2 are located on the outside of the cabinet 1, so that the heat carried on the heat dissipation fins 2 can be quickly lost. The cabinet 1 The airflow on the outside moves in one direction, and the protective gas inside the cabinet 1 is in an internal circulation state. The two airflow states cooperate with each other to accelerate the rapid dissipation of the heat generated during the operation of the main body 3;
四个单向阀702的作用在于限制气流的输入和输出的位置,位于壳体701下方的单向阀702仅能实现气流由外进入单向阀702内,同时位于壳体701上方的单向阀702仅能实现气流由壳体701内离开,驱动杆704推动滑板703在壳体701内水平往复运动,滑板703将壳体701隔断为前后两个空间,并且每个空间上下两侧均设置有一个单向阀702,两个空间分别与柜体1内外两侧空间相连,当滑板703在壳体701内部水平滑动期间,滑板703两侧的空间体积在不断地发生变化,当空间体积在持续增大期间,空间内部的气压下降,壳体701外侧的气流即可通过空间一侧下方的单向阀702进入空间中,以保持空间内部的气压平衡,随后当空间体积在持续减小时,空间内部的气压上升,以使得空间内部的气流通过空间一侧上方的单向阀702离开,驱动杆704持续工作,以保持柜体1内外两侧存在气流运动,配合散热鳍片2加速主体3热量散发;The function of the four one-way valves 702 is to limit the input and output positions of the air flow. The one-way valve 702 located below the casing 701 can only realize the airflow entering the one-way valve 702 from the outside. At the same time, the one-way valve 702 located above the casing 701 The valve 702 can only realize the airflow leaving the casing 701. The driving rod 704 pushes the sliding plate 703 to move horizontally in the casing 701. The sliding plate 703 divides the casing 701 into two front and rear spaces, and each space is provided with upper and lower sides. There is a one-way valve 702, and the two spaces are connected to the spaces on both sides of the cabinet 1. When the sliding plate 703 slides horizontally inside the housing 701, the space volume on both sides of the sliding plate 703 is constantly changing. When the space volume is During the continuous increase, the air pressure inside the space decreases, and the air flow outside the housing 701 can enter the space through the one-way valve 702 under one side of the space to maintain the air pressure balance inside the space. Subsequently, when the space volume continues to decrease, The air pressure inside the space rises, so that the air flow inside the space leaves through the one-way valve 702 on one side of the space. The driving rod 704 continues to work to maintain air flow movement on both sides of the cabinet 1, and cooperates with the heat dissipation fins 2 to accelerate the main body 3 heat dissipation;
交流板705的结构设置,使得滑板703两侧的气流运动区域相互啮合,以提高滑板703两侧气流之间的热量传递,由于柜体1内部的保护气体运动方式为内循环,柜体1外侧的气流与外界环境相连通,并且柜体1内部存在有始终为放热状态的主体3,使得柜体1内部温度要始终高于外界的环境温度;The structural arrangement of the communication plate 705 enables the air flow areas on both sides of the sliding plate 703 to mesh with each other to improve the heat transfer between the air flows on both sides of the sliding plate 703. Since the protective gas movement mode inside the cabinet 1 is internal circulation, the outside of the cabinet 1 The air flow is connected with the external environment, and there is a main body 3 inside the cabinet 1 that is always in a heat-releasing state, so that the internal temperature of the cabinet 1 is always higher than the external ambient temperature;
壳体701被滑板703隔断为两个空间,其中缺口所在一侧空间与柜体1内部的空间连通下称该空间为内循环空间,壳体701内部与外界环境相连通的一侧空间为外循环空间,其中内循环空间中设置有交流板705和横板706,横板706将交流板705分隔为上下两个空间,由于交流板705和横板706之间存在通孔707,并且通孔707在横板706靠近外循环空间所在的一侧,横板706和通孔707的设置在于改变保护气体在内循环空间中的流动路径;The casing 701 is divided into two spaces by the sliding plate 703. The space on the side where the gap is located is connected to the space inside the cabinet 1, which is hereinafter referred to as the internal circulation space. The space on the side of the casing 701 that is connected to the external environment is the external space. Circulation space, in which the communication plate 705 and the horizontal plate 706 are provided in the inner circulation space. The horizontal plate 706 separates the communication plate 705 into two upper and lower spaces. Since there is a through hole 707 between the communication plate 705 and the horizontal plate 706, and the through hole 707 is on the side of the horizontal plate 706 close to the outer circulation space. The horizontal plate 706 and the through hole 707 are provided to change the flow path of the protective gas in the inner circulation space;
交流板705的上端与壳体701上方的单向阀702相连通,使得交流板705的上方为出气端,横板706和通孔707的设置,实现滑板703在改变内循环空间的体积大小时,横板706的下方的保护气体需要在横板706的导向下穿过通孔707,目的在于控制保护气体经过外循环空间所在的范围内,即外循环空间内部气流运动路径与内循环空间内的气流相互啮合,实现保护气体在壳体701内部运动期间,保护气体所携带的热量存在有一部分通过交流板705传递至外循环空间内的气流上;The upper end of the communication plate 705 is connected with the one-way valve 702 above the housing 701, so that the upper part of the communication plate 705 is the air outlet. The arrangement of the horizontal plate 706 and the through hole 707 allows the sliding plate 703 to change the volume of the internal circulation space. , the protective gas under the horizontal plate 706 needs to pass through the through hole 707 under the guidance of the horizontal plate 706, the purpose is to control the protective gas to pass through the range of the outer circulation space, that is, the air flow movement path inside the outer circulation space and the inner circulation space The air flows mesh with each other, so that during the movement of the protective gas inside the shell 701, part of the heat carried by the protective gas is transferred to the air flow in the outer circulation space through the exchange plate 705;
交流板705下方一侧设置有矩形缺口,通过矩形缺口实现内循环空间内交流板705之间相互连通,并且交流板705内的空间与交流板705之间的间隙同为连通状态,以便于滑板703运动期间改变内循环空间的体积;A rectangular notch is provided on the lower side of the communication plate 705. Through the rectangular notch, the communication plates 705 in the inner circulation space are connected to each other, and the space in the communication plate 705 and the gap between the communication plates 705 are both connected, so as to facilitate the skateboarding. 703 changes the volume of the internal circulation space during exercise;
柜体1外侧的散热鳍片2与柜体1内侧的散热鳍片2相垂直,由于柜体1外侧散热鳍片2的下端表面为斜面,使得柜体1外侧散热鳍片2内部的工质在冷却液化后掉落,随后沿着散热鳍片2内侧的斜面向柜体1内侧的散热鳍片2所在的一侧运动,柜体1内侧散热鳍片2中的液化工质在受热后蒸发,蒸发后形成的工质流上升至散热鳍片2的内部上方,柜体1内外两侧的散热鳍片2的上下两端相连通,柜体1内外两侧的散热鳍片2被柜体1的侧板隔断为两部分,由于柜体1外侧散热鳍片2内部的工质不断地冷却液化,使得柜体1外侧散热鳍片2内部的气压不断降低,进而需要柜体1内侧散热鳍片2内部的气态工质不断向另一部散热鳍片2内运动,实现工质在两部分散热鳍片2内形成运动循环;The heat dissipation fins 2 on the outside of the cabinet 1 are perpendicular to the heat dissipation fins 2 on the inside of the cabinet 1. Since the lower surface of the heat dissipation fins 2 on the outside of the cabinet 1 is a bevel, the working fluid inside the heat dissipation fins 2 on the outside of the cabinet 1 is After being cooled and liquefied, it falls and then moves along the slope inside the radiator fin 2 toward the side of the radiator fin 2 inside the cabinet 1. The liquefied working fluid in the radiator fin 2 inside the cabinet 1 evaporates after being heated. , the working fluid flow formed after evaporation rises to the inside of the heat sink 2. The upper and lower ends of the heat sink 2 on both sides of the cabinet 1 are connected. The heat sink 2 on both sides of the cabinet 1 are connected by the cabinet. The side panel partition of 1 is divided into two parts. Since the working fluid inside the cooling fins 2 on the outside of the cabinet 1 is continuously cooled and liquefied, the air pressure inside the cooling fins 2 on the outside of the cabinet 1 is continuously reduced, which in turn requires the cooling fins on the inside of the cabinet 1. The gaseous working fluid inside the fin 2 continuously moves into the other heat dissipating fin 2, so that the working fluid forms a movement cycle in the two heat dissipating fins 2;
柜体1内部在产生电弧时,活塞板5在控制杆6的带动下向上运动,使得活塞板5下方空间的体积不断增大,柜体1内部的保护气体为填充新增加的空间,部分保护气体会向上运动,由于电弧的产生需要空气作为介质,当气流向上运动时,电弧会形成向上运动的偏移,即为开口向下的弧线,由于主体3和引弧网4的上方为散热鳍片2,电弧在上升至散热鳍片2所在的区域时,电弧会被散热鳍片2所分隔,形成若干个小的电弧,电弧被隔断后,主体3和引弧网4之间的电流通路消失,部分电弧由于产生的形变较大,使得电弧网的长度增加而主动断开;When an arc occurs inside the cabinet 1, the piston plate 5 moves upward driven by the control rod 6, causing the volume of the space below the piston plate 5 to continuously increase. The protective gas inside the cabinet 1 fills the newly added space and partially protects the arc. The gas will move upward. Since the generation of the arc requires air as a medium, when the air flow moves upward, the arc will form an upward movement deflection, which is an arc with the opening downward. Since the upper part of the main body 3 and the arc net 4 is a heat dissipation Fin 2, when the arc rises to the area where the heat dissipation fin 2 is located, the arc will be separated by the heat dissipation fin 2, forming several small arcs. After the arc is separated, the current between the main body 3 and the arc net 4 The path disappears, and some arcs are actively disconnected due to the large deformation produced, which increases the length of the arc network;
氧化铝作为散热鳍片2的隔层,以使得电弧在接触到散热鳍片2后,将电弧与散热鳍片2内部的工质相分离;Aluminum oxide acts as an interlayer of the heat sink fin 2, so that after the arc contacts the heat sink fin 2, the arc is separated from the working medium inside the heat sink fin 2;
当主体3需要进行维修,控制杆6带动活塞板5下降,并且控制阀501打开,以便于活塞板5下方空间内的部分保护气体转移至腔室502中腔室502的体积可主动发生变化,随后关闭控制阀501,即可打开柜体1前方的柜门拆下引弧网4,即可对主体3进行维修,维修完成后安装引弧网4和关闭柜门,对柜体1内部的气体进行置换,以至于柜体1内的保护气体纯度达标,随后控制杆6带动活塞板5上升复位,并且控制阀501打开,腔室502内部的保护气体重新向活塞板5下方运动,活塞板5和控制阀501的结构设置在于:减少维修期间需要填充保护气体的量。When the main body 3 needs to be repaired, the control rod 6 drives the piston plate 5 down, and the control valve 501 opens, so that part of the protective gas in the space below the piston plate 5 is transferred to the chamber 502, and the volume of the chamber 502 can be actively changed. Then close the control valve 501, open the cabinet door in front of the cabinet 1 and remove the arc net 4, and then repair the main body 3. After the repair is completed, install the arc net 4 and close the cabinet door to inspect the internal components of the cabinet 1. The gas is replaced until the purity of the protective gas in the cabinet 1 reaches the standard. Then the control rod 6 drives the piston plate 5 to rise and reset, and the control valve 501 opens. The protective gas in the chamber 502 moves to the bottom of the piston plate 5 again, and the piston plate 5 and the control valve 501 are configured to reduce the amount of protective gas that needs to be filled during maintenance.
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.
最后应说明的是:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still The technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
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Denomination of invention: A switchgear with deformation monitoring and automatic control functions Granted publication date: 20240130 Pledgee: Agricultural Bank of China Songming County Branch Pledgor: YUNNAN BOCHUANG ELECTRIC EQUIPMENT CO.,LTD. Registration number: Y2025980007435 |