CN104795743A - Heat radiation system of electrical cabinets in power distribution room - Google Patents
Heat radiation system of electrical cabinets in power distribution room Download PDFInfo
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- CN104795743A CN104795743A CN201510230789.4A CN201510230789A CN104795743A CN 104795743 A CN104795743 A CN 104795743A CN 201510230789 A CN201510230789 A CN 201510230789A CN 104795743 A CN104795743 A CN 104795743A
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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
- 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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Abstract
本发明公开了一种配电间电气柜的散热系统，包括配电间和位于配电间内的若干电气柜，所述配电间顶部具有防雨顶，所述配电间上部设有龙骨，龙骨下方连接有天花板吊顶板，所有天花板吊顶板将配电间隔成上下两个空间，在电气柜内还设有一个空调室，所述空调室与一根连接管相通；在每一只电气柜的上方对应有一根排气管，该排气管穿过其上部的天花板吊顶板使得排气管的顶部位于所述配电间上层的空间内，该排气管的底部与对应电气柜的上开口相通；在配电间的地面上还设有一只风机，所述风机的出口管与吹风管相通，所述吹风管与所有的风道都连通。本发明由多个散热方案并举，散热效果好，可以有效确保配电间电气柜内电气元件的正常工作。
The invention discloses a cooling system for an electric cabinet in a power distribution room, which comprises a power distribution room and several electric cabinets located in the power distribution room. The top of the power distribution room has a rainproof roof, and the upper part of the power distribution room is provided with a keel , the lower part of the keel is connected with ceiling panels, and all the ceiling panels divide the power distribution into upper and lower spaces. There is also an air-conditioning room in the electrical cabinet, and the air-conditioning room communicates with a connecting pipe; There is an exhaust pipe above the cabinet, which passes through the upper ceiling plate so that the top of the exhaust pipe is located in the upper space of the power distribution room, and the bottom of the exhaust pipe is connected to the corresponding electrical cabinet. The upper opening communicates; there is also a fan on the ground of the power distribution room, the outlet pipe of the fan communicates with the blowing pipe, and the blowing pipe communicates with all the air ducts. The invention adopts multiple heat dissipation schemes simultaneously, has good heat dissipation effect, and can effectively ensure the normal operation of the electric components in the electric cabinet of the power distribution room.
Description
技术领域technical field
本发明涉及电气领域，尤其是一种配电间电气柜的散热系统。The invention relates to the electrical field, in particular to a cooling system for an electrical cabinet in a power distribution room.
背景技术Background technique
电气柜是常用的电气产品，电气柜是由钢材质加工而成用来保护元器件正常工作的柜子。电气柜制作材料一般分为热轧钢板和冷轧钢板两种。冷轧钢板相对热轧钢板更材质柔软，更适合电气柜的制作。电气柜用途广泛主要用于化工行业，环保行业，电力系统，冶金系统，工业，核电行业，消防安全监控，交通行业等等。The electrical cabinet is a commonly used electrical product. The electrical cabinet is made of steel to protect the normal operation of the components. The materials for making electrical cabinets are generally divided into two types: hot-rolled steel plates and cold-rolled steel plates. Compared with hot-rolled steel sheets, cold-rolled steel sheets are softer and more suitable for the production of electrical cabinets. Electrical cabinets are widely used mainly in chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry and so on.
电气柜在使用过程中，其内部的电气元件会发热，使柜体内温度升高，温度过高时容易影响其内部的电气元件的正常使用及使用寿命，为此，电气柜上都设有散热结构，一般是在电气柜上设置通风口或通风百叶窗，有的电气柜会在通风口设置风扇，利用风扇使电气柜内气流发生变化，提高散热效率。During the use of the electrical cabinet, the internal electrical components will generate heat, which will increase the temperature inside the cabinet. When the temperature is too high, it will easily affect the normal use and service life of the internal electrical components. Therefore, the electrical cabinet is equipped with a heat dissipation structure. , Generally, vents or ventilation shutters are set on the electrical cabinet, and some electrical cabinets will be provided with fans at the vents, and the fans will be used to change the airflow in the electrical cabinet to improve heat dissipation efficiency.
现有的电气柜散热存在如下技术问题：The existing electrical cabinet heat dissipation has the following technical problems:
1、采用在电气柜内设置风扇的方案，由于风扇在工作时会产生振动，这种振动通过柜体间接到传递到其内部的电气元件中，各种电气元件长期处于振动状态时，其内部的元件器容易受损，影响了使用寿命，另一方面，各种连接线与触点之间也因为受到长期的振动而脱开，使整个系统产生故障，因此采用内部风扇的方案存在问题；1. Adopt the scheme of installing a fan in the electrical cabinet. Since the fan will vibrate when it is working, this vibration will be transmitted directly to the electrical components inside it through the cabinet body. When various electrical components are in a vibrating state for a long time, their internal The components are easily damaged, which affects the service life. On the other hand, various connecting lines and contacts are also disengaged due to long-term vibration, causing the entire system to fail. Therefore, there are problems in the scheme of using an internal fan;
2、电气柜一般置于电气控制室内，如果电气控制室不设空调，整个电气控制室的温度会很高，尤其在夏天，由于外部空气温度高了，电气柜内的风扇不得不长期工作；另外如果在电气控制室设空调，空调产生的冷气大部分形成的是建筑能耗，即整个电气控制室内的空气都需要降温，这样能耗就高，不划算；2. The electrical cabinet is generally placed in the electrical control room. If the electrical control room is not equipped with an air conditioner, the temperature of the entire electrical control room will be very high, especially in summer, due to the high temperature of the external air, the fan in the electrical cabinet has to work for a long time; In addition, if an air conditioner is installed in the electrical control room, most of the cold air generated by the air conditioner is building energy consumption, that is, the air in the entire electrical control room needs to be cooled, so the energy consumption will be high, which is not cost-effective;
3、电气柜内的控制核心：控制器没有单独的散热结构，控制器一旦因散热不及时而出问题，将使整个系统瘫痪，引起不可估量的损失。3. The control core in the electrical cabinet: the controller does not have a separate heat dissipation structure. Once the controller fails due to untimely heat dissipation, the entire system will be paralyzed and cause immeasurable losses.
由于现有技术中存在上述技术问题，影响使用，因此必须进行改进。Because there are above-mentioned technical problems in prior art, affect use, therefore must improve.
本公司曾研制一种电气柜及其散热控制方法(申请号2015102008568)，利于位于配电间顶部的风道来散热，但风道制作繁烦，容积小，对流效果差，所以本公司又作了进一步的改进。The company has developed an electrical cabinet and its heat dissipation control method (application number 2015102008568), which is beneficial to the air duct located on the top of the power distribution room to dissipate heat, but the air duct is complicated to make, the volume is small, and the convection effect is poor, so the company made another made further improvements.
发明内容Contents of the invention
本发明的目的是为了解决上述技术的不足而设计的一种散热效果好的配电间电气柜的散热系统。The object of the present invention is to solve the deficiency of the above-mentioned technology and design a kind of heat dissipation system of the electric cabinet of distribution room with good heat dissipation effect.
本发明所设计的一种配电间电气柜的散热系统，包括配电间和位于配电间内的若干电气柜，其特征是所述配电间顶部具有防雨顶，所述配电间上部设有龙骨，龙骨下方连接有天花板吊顶板，所有天花板吊顶板将配电间隔成上下两个空间，在配电间位于天花板吊顶板上部的位置四面都开有通风窗，在通风窗上设有防虫网，在所述配电间的地面上开有多条平行的槽，每一条槽内都设有风道；在每一条槽的上方中心位置处设有一只空调柜，所述空调柜内设有空调，在空调柜的两侧设有呈一字形排布的电气柜，所述槽的宽度小于空调柜和电气柜；在所述的风道内设有一根冷气管，所述空调柜底部与冷气管相通；所述的电气柜顶部具有上开口、底面具有下开口、侧面具有进风口，在电气柜内还设有一个空调室，所述空调室与一根连接管相通；在每一只电气柜的上方对应有一根排气管，该排气管穿过其上部的天花板吊顶板使得排气管的顶部位于所述配电间上层的空间内，该排气管的底部与对应电气柜的上开口相通；在所述的风道上与每个电气柜对应的位置设有出风管，所述出风管与对应电气柜的下开口通过可形变管相通，所述的冷气管在每一个出风管处都具有一个出口管，所述的连接管与对应冷气管的出口管相连接；所述的连接管上还设有旁通管，所述旁通管上设有出气阀；所述电气柜内还设有一只可以通过进风口往内抽气的风扇；在配电间的地面上还设有一只风机，所述风机的出口与吹风管相通，所述吹风管与所有的风道都连通。A heat dissipation system for an electrical cabinet in a power distribution room designed by the present invention includes a power distribution room and several electrical cabinets located in the power distribution room, and is characterized in that the top of the power distribution room has a rainproof roof, and the power distribution room There is a keel on the upper part, and the ceiling plate is connected to the lower part of the keel. All the ceiling plates divide the power distribution into two spaces, the upper and lower spaces. There are ventilation windows on all sides at the position above the ceiling plate in the power distribution room. There are insect-proof nets, and there are multiple parallel slots on the ground of the power distribution room, and air ducts are provided in each slot; an air-conditioning cabinet is provided at the center above each slot, and the air-conditioning cabinet There is an air conditioner inside, and electrical cabinets arranged in a line are arranged on both sides of the air-conditioning cabinet. The width of the groove is smaller than that of the air-conditioning cabinet and the electrical cabinet; The bottom of the cabinet communicates with the cold air pipe; the top of the electrical cabinet has an upper opening, the bottom has a lower opening, and the side has an air inlet, and an air-conditioning room is also provided in the electrical cabinet, and the air-conditioning room communicates with a connecting pipe; An exhaust pipe is correspondingly arranged above each electrical cabinet, and the exhaust pipe passes through the upper ceiling plate so that the top of the exhaust pipe is located in the space on the upper floor of the power distribution room, and the bottom of the exhaust pipe is connected to the upper layer of the power distribution room. The upper opening of the corresponding electrical cabinet communicates; an air outlet pipe is provided at the position corresponding to each electrical cabinet on the air duct, and the air outlet pipe communicates with the lower opening of the corresponding electrical cabinet through a deformable pipe. The air pipe has an outlet pipe at each air outlet pipe, and the connecting pipe is connected with the outlet pipe of the corresponding cold air pipe; the connecting pipe is also provided with a bypass pipe, and the bypass pipe is provided with The air outlet valve; the electrical cabinet is also provided with a fan that can draw air through the air inlet; a fan is also provided on the ground of the power distribution room, and the outlet of the fan communicates with the blowing pipe, and the blowing pipe Connected to all air ducts.
本发明所设计的配电间电气柜的散热系统，它的有益效果是：第一，平时由于热空气上升的原理，电气柜内的热空气会直接通过排气管进入配电间上层的空间内，配电间上层的空间四面都开有通风窗，且为一个空旷的整体，对流效果好，热空气会随着空气的流动直接散出配电间外，这利用了自然界的风能来散热，能耗小，另外散出的热空气直接到了室外，对于放置电气柜的配电间下层而言，温度不易升高，空气温度保持较低时，其进入电气柜内冷却效率就好；同时防虫网可起到防虫作用，防雨顶可以起到防雨作用；第二，风机工作时，风经吹风管、风道、出风管、可形变管、电气柜底部的下开口进入每一只电气柜，将电气柜中因电气元件发热而积累的热空气向上吹，直接经配电间上层的空间散出至配电间外，同样热量都被吹至配电间上层及室外，对于放置电气柜的配电间下层而言，温度不易升高；同时，风道的振动最终被吸收在了可形变管处，防止风道的振动影响电气柜；第三，空调柜因空调制冷而存有冷气，冷气通过冷气管及每个电气柜内的连接管输送到空调室内，连接管长期保证通畅，空调室长期处于低温，可以用于安装控制器或者贵重电气元件，冷气进入空调室内对所安装的电气元件进行降温，这样，作为控制核心的控制器得到了优待，长期可处于空调环境中，不易产生故障，减少因此产生的损失；由于空调柜只与每个电气柜相通，而不与电气柜外的空气相通，空调不用降低整个配电间的温度，不需要产生过多的建筑能耗可起到节能作用；当电气柜内的出气阀打开时，冷空气通过旁通管进入电气柜相内，可降低电气柜的温度；第四，传统的风扇仍然存在，在需要的情况下风扇可以启动，将电气柜外的空气吸入、将电气柜内的热空气向上吹出以降温；上述四个降温散热方案的结合，可以有效确保配电间电气柜内电气元件的正常工作。The heat dissipation system of the electrical cabinet in the distribution room designed by the present invention has the following beneficial effects: First, due to the principle of rising hot air, the hot air in the electrical cabinet will directly enter the upper space of the distribution room through the exhaust pipe Inside, the space on the upper floor of the power distribution room has ventilation windows on all sides, and it is an open whole with good convection effect. The hot air will be directly released outside the power distribution room with the flow of air, which uses the natural wind energy to dissipate heat , the energy consumption is small, and the hot air emitted goes directly to the outside. For the lower floor of the power distribution room where the electrical cabinet is placed, the temperature is not easy to rise. When the air temperature is kept low, the cooling efficiency of it entering the electrical cabinet is good; at the same time The insect-proof net can play the role of insect-proof, and the rain-proof top can play the role of rain-proof; secondly, when the fan is working, the wind enters each of Only the electrical cabinet blows the hot air accumulated in the electrical cabinet due to the heating of the electrical components upwards, and directly dissipates it through the upper space of the power distribution room to the outside of the power distribution room. The same heat is blown to the upper layer of the power distribution room and outside. For the lower floor of the power distribution room where the electrical cabinet is placed, the temperature is not easy to rise; at the same time, the vibration of the air duct is finally absorbed in the deformable tube to prevent the vibration of the air duct from affecting the electrical cabinet; There is cold air, and the cold air is transported to the air-conditioning room through the cold air pipe and the connecting pipe in each electrical cabinet. The connecting pipe is guaranteed to be smooth for a long time, and the air-conditioning room is kept at low temperature for a long time. The installed electrical components are cooled. In this way, the controller as the control core gets preferential treatment, and can be placed in the air-conditioned environment for a long time, which is not prone to failure and reduces the resulting losses; because the air-conditioning cabinet is only connected to each electrical cabinet, not Connected with the air outside the electrical cabinet, the air conditioner does not need to reduce the temperature of the entire power distribution room, and does not need to generate excessive building energy consumption to save energy; when the air outlet valve in the electrical cabinet is opened, cold air enters through the bypass pipe In the phase of the electrical cabinet, the temperature of the electrical cabinet can be reduced; fourth, the traditional fan still exists, and the fan can be started when necessary, sucking the air outside the electrical cabinet and blowing the hot air in the electrical cabinet upward to cool down; The combination of the above four cooling and heat dissipation schemes can effectively ensure the normal operation of the electrical components in the electrical cabinet of the power distribution room.
作为上述方案进一步的改进：所述的排气管上部固定于所述龙骨上，在排气管中部设有一段可伸缩管，在排气管的底部设有法兰盘，所述法兰盘与电气柜相连接。可伸缩管可以是塑料褶皱管，这样排气管可以伸缩，在安装过程中便于与电气柜实现连接。As a further improvement of the above scheme: the upper part of the exhaust pipe is fixed on the keel, a section of telescopic pipe is provided in the middle of the exhaust pipe, and a flange is provided at the bottom of the exhaust pipe. Connect to electrical cabinet. The telescoping tube can be a plastic corrugated tube, so that the exhaust tube can be retracted to facilitate connection with the electrical cabinet during installation.
作为上述方案进一步的改进：在每一只电气柜内都设有温度传感器，在其中一只空调柜内设有总控制器，每一只电气柜内的温度传感器测量该电气柜内的温度tt并输入至总控制器，所述总控制器控制所述风机以及每一只电气柜内的出气阀和风扇工作且控制方法如下：As a further improvement of the above scheme: a temperature sensor is provided in each electrical cabinet, a master controller is provided in one of the air-conditioning cabinets, and the temperature sensor in each electrical cabinet measures the temperature in the electrical cabinet tt And input to the master controller, the master controller controls the operation of the blower fan and the air outlet valve and fan in each electrical cabinet and the control method is as follows:
i.所述总控制器每隔一段时间都控制风机工作一次并持续时间T；i. The master controller controls the blower fan to work for a period of time T every once in a while;
ii.在总控制器内预先存储有两个温度值ta和tb，ta代表低限位温度，tb代表高限位温度，ta小于tb；ii. There are two temperature values ta and tb pre-stored in the master controller, ta represents the low limit temperature, tb represents the high limit temperature, and ta is smaller than tb;
iii.当有一半电气柜的温度tt达到ta时，总控制器控制风机工作，直至温度tt达到ta的电气柜的数量少于五分之一；iii. When the temperature tt of half of the electrical cabinets reaches ta, the general controller controls the fan to work until the number of electrical cabinets whose temperature tt reaches ta is less than one-fifth;
iv.当有三分之一的电气柜的温度tt达到tb时，总控制器控制风机工作，直至温度tt达到ta的电气柜的数量少于五分之一；iv. When the temperature tt of one-third of the electrical cabinets reaches tb, the general controller controls the fan to work until the number of electrical cabinets whose temperature tt reaches ta is less than one-fifth;
v.当某只电气柜内的tt达到ta时，总控制器控制对应电气柜内的出气阀打开；v. When tt in a certain electrical cabinet reaches ta, the master controller controls the outlet valve in the corresponding electrical cabinet to open;
vi.当某只电气柜内的tt达到tb时，总控制器控制对应电气柜的风扇持续工作。vi. When tt in a certain electrical cabinet reaches tb, the master controller controls the fan in the corresponding electrical cabinet to continue to work.
作为上述方案进一步的改进：所述风机工作时，出气阀关闭，所述风扇不工作。As a further improvement of the above solution: when the fan is working, the outlet valve is closed, and the fan is not working.
本发明所设计的配电间电气柜的散热系统，由多个散热方案并举，散热效果好，可以有效确保配电间电气柜内电气元件的正常工作。The heat dissipation system of the electric cabinet in the power distribution room designed by the present invention adopts multiple heat dissipation schemes simultaneously, has a good heat dissipation effect, and can effectively ensure the normal operation of the electrical components in the electric cabinet in the power distribution room.
附图说明Description of drawings
图1是实施例1的结构示意图，图中其中一个电气柜未安装门，可见内部结构；Fig. 1 is a structural schematic diagram of embodiment 1, wherein one of the electrical cabinets is not equipped with a door, and the internal structure can be seen;
图2是实施例1电气柜的结构示意图；Fig. 2 is the structural representation of embodiment 1 electric cabinet;
图3是实施例1配电间下层的俯视图；Fig. 3 is a top view of the lower floor of the power distribution room in Embodiment 1;
图4是实施例2的结构示意图；Fig. 4 is the structural representation of embodiment 2;
图5是图4中A处的放大图；Fig. 5 is the enlarged view of place A in Fig. 4;
图6是实施例3的结构示意图；Fig. 6 is the structural representation of embodiment 3;
图中：配电间1、电气柜2、防雨顶3、龙骨4、天花板吊顶板5、通风窗6、防虫网7、槽8、风道9、空调柜10、空调11、冷气管12、上开口13、下开口14、进风口15、空调室16、连接管17、排气管18、出风管19、可形变管20、出口管21、旁通管22、出气阀23、风扇24、风机25、吹风管26、法兰盘27、可伸缩管28、温度传感器29、总控制器30。In the figure: power distribution room 1, electrical cabinet 2, rainproof roof 3, keel 4, ceiling board 5, ventilation window 6, insect net 7, slot 8, air duct 9, air conditioning cabinet 10, air conditioner 11, air-conditioning pipe 12 , upper opening 13, lower opening 14, air inlet 15, air conditioning chamber 16, connecting pipe 17, exhaust pipe 18, air outlet pipe 19, deformable pipe 20, outlet pipe 21, bypass pipe 22, air outlet valve 23, fan 24, blower fan 25, blowing pipe 26, flange plate 27, telescopic pipe 28, temperature sensor 29, master controller 30.
具体实施方式Detailed ways
下面通过实施例结合附图对本发明作进一步的描述。The present invention will be further described below with reference to the accompanying drawings.
实施例1：Example 1:
如图1、2、3所示，本实施例所描述的配电间电气柜的散热系统，包括配电间1和位于配电间1内的若干电气柜2，所述配电间1顶部具有防雨顶3，所述配电间1上部设有龙骨4，龙骨4下方连接有天花板吊顶板5，所有天花板吊顶板5将配电间1隔成上下两个空间，在配电间1位于天花板吊顶板5上部的位置四面都开有通风窗6，在通风窗6上设有防虫网7，在所述配电间1的地面上开有多条平行的槽8，每一条槽8内都设有风道9；在每一条槽8的上方中心位置处设有一只空调柜10，所述空调柜10内设有空调11，在空调柜10的两侧设有呈一字形排布的电气柜2，所述槽8的宽度小于空调柜10和电气柜2；在所述的风道9内设有一根冷气管12，所述空调柜10底部与冷气管12相通；所述的电气柜2顶部具有上开口13、底面具有下开口14、侧面具有进风口15，在电气柜2内还设有一个空调室16，所述空调室16与一根连接管17相通；在每一只电气柜2的上方对应有一根排气管18，该排气管18穿过其上部的天花板吊顶板5使得排气管18的顶部位于所述配电间1上层的空间内，该排气管18的底部与对应电气柜2的上开口13相通；在所述的风道9上与每个电气柜2对应的位置设有出风管19，所述出风管19与对应电气柜2的下开口14通过可形变管20相通，可形变管20可以是橡胶软管或者塑料褶皱管，甚至可以是布做的风管，所述的冷气管12在每一个出风管19处都具有一个出口管21，所述的连接管17与对应冷气管12的出口管21相连接；所述的连接管17上还设有旁通管22，所述旁通管22上设有出气阀23；所述电气柜2内还设有一只可以通过进风口15往内抽气的风扇24；在配电间1的地面上还设有一只风机25，所述风机25的出口与吹风管26相通，所述吹风管26与所有的风道9都连通。As shown in Figures 1, 2, and 3, the heat dissipation system of the electrical cabinet in the power distribution room described in this embodiment includes a power distribution room 1 and several electrical cabinets 2 located in the power distribution room 1. The top of the power distribution room 1 It has a rain-proof roof 3, the upper part of the power distribution room 1 is provided with a keel 4, and the lower part of the keel 4 is connected with a ceiling ceiling plate 5. All the ceiling ceiling plates 5 divide the power distribution room 1 into upper and lower spaces. In the power distribution room 1 Ventilation windows 6 are provided on all four sides of the upper part of the ceiling slab 5, and insect-proof nets 7 are arranged on the ventilation windows 6. A plurality of parallel slots 8 are opened on the ground of the power distribution room 1, and each slot 8 Air ducts 9 are provided inside; an air-conditioning cabinet 10 is provided at the upper center of each slot 8, and air-conditioning cabinets 11 are provided in the air-conditioning cabinets 10, and air-conditioning cabinets 10 are arranged in a line on both sides of the air-conditioning cabinet 10. The electrical cabinet 2, the width of the groove 8 is smaller than the air-conditioning cabinet 10 and the electrical cabinet 2; a cold air pipe 12 is arranged in the air duct 9, and the bottom of the air-conditioning cabinet 10 communicates with the cold air pipe 12; The top of the electrical cabinet 2 has an upper opening 13, the bottom surface has a lower opening 14, and the side has an air inlet 15. An air-conditioning room 16 is also provided in the electrical cabinet 2, and the air-conditioning room 16 communicates with a connecting pipe 17; There is an exhaust pipe 18 corresponding to the top of the electrical cabinet 2, and the exhaust pipe 18 passes through the ceiling plate 5 on its top so that the top of the exhaust pipe 18 is located in the space on the upper floor of the power distribution room 1. The bottom of the pipe 18 communicates with the upper opening 13 of the corresponding electrical cabinet 2; an air outlet pipe 19 is provided at a position corresponding to each electrical cabinet 2 on the air duct 9, and the air outlet pipe 19 is connected to the corresponding electrical cabinet 2. The lower opening 14 communicates through the deformable tube 20. The deformable tube 20 can be a rubber hose or a plastic corrugated tube, or even a cloth air tube. The cold air tube 12 has a An outlet pipe 21, the connecting pipe 17 is connected to the outlet pipe 21 of the corresponding cold air pipe 12; the connecting pipe 17 is also provided with a bypass pipe 22, and the bypass pipe 22 is provided with an air outlet valve 23 ; The electrical cabinet 2 is also provided with a fan 24 that can draw air through the air inlet 15; a fan 25 is also provided on the ground of the power distribution room 1, and the outlet of the fan 25 communicates with the blowing pipe 26 , said blowing pipe 26 is all communicated with all air ducts 9 .
本实施例所描述的配电间电气柜的散热系统，它的有益效果是：第一，平时由于热空气上升的原理，电气柜2内的热空气会直接通过排气管18进入配电间1上层的空间内，配电间1上层的空间四面都开有通风窗6，且为一个空旷的整体，对流效果好，热空气会随着空气的流动直接散出配电间1外，这利用了自然界的风能来散热，能耗小，另外散出的热空气直接到了室外，对于放置电气柜2的配电间下层而言，温度不易升高，空气温度保持较低时，其进入电气柜2内冷却效率就好；同时防虫网7可起到防虫作用，防雨顶3可以起到防雨作用；第二，风机25工作时，风经吹风管26、风道9、出风管19、可形变管20、电气柜2底部的下开口14进入每一只电气柜2，将电气柜2中因电气元件发热而积累的热空气向上吹，直接经配电间1上层的空间散出至配电间1外，同样热量都被吹至配电间1上层及室外，对于放置电气柜2的配电间下层而言，温度不易升高；同时，风道9的振动最终被吸收在了可形变管20处，防止风道9的振动影响电气柜2；第三，空调柜10因空调11制冷而存有冷气，冷气通过冷气管12及每个电气柜2内的连接管17输送到空调室16内，连接管17长期保证通畅，空调室16长期处于低温，可以用于安装控制器或者贵重电气元件，冷气进入空调室16内对所安装的电气元件进行降温，这样，作为控制核心的控制器(图中示意是PLC，又称可编程控制器)得到了优待，长期可处于空调环境中，不易产生故障，减少因此产生的损失；由于空调柜10只与每个电气柜2相通，而不与电气柜2外的空气相通，空调不用降低整个配电间1的温度，不需要产生过多的建筑能耗可起到节能作用；当电气柜2内的出气阀23打开时，冷空气通过旁通管22进入电气柜2相内，可降低电气柜2的温度；第四，传统的风扇24仍然存在，在需要的情况下风扇24可以启动，将电气柜2外的空气吸入、将电气柜2内的热空气向上吹出以降温；上述四个降温散热方案的结合，可以有效确保配电间电气柜内电气元件的正常工作。The heat dissipation system of the electrical cabinet in the power distribution room described in this embodiment has the following beneficial effects: First, due to the principle of rising hot air, the hot air in the electrical cabinet 2 will directly enter the power distribution room through the exhaust pipe 18 1 In the space on the upper floor, ventilation windows 6 are opened on all sides of the space on the upper floor of the power distribution room 1, and it is an open whole with good convection effect. The natural wind energy is used to dissipate heat, and the energy consumption is small. In addition, the hot air released directly goes to the outside. For the lower floor of the distribution room where the electrical cabinet 2 is placed, the temperature is not easy to rise. When the air temperature is kept low, it enters the electrical cabinet. The cooling efficiency in the cabinet 2 is just good; the insect-proof net 7 can play the insect-proof effect simultaneously, and the rain-proof top 3 can play the rain-proof effect; 19. The deformable tube 20 and the lower opening 14 at the bottom of the electrical cabinet 2 enter each electrical cabinet 2, and blow the hot air accumulated in the electrical cabinet 2 upward due to the heating of the electrical components, and disperse it directly through the upper space of the power distribution room 1. Out of the power distribution room 1, the same heat is blown to the upper layer of the power distribution room 1 and outside. For the lower layer of the power distribution room where the electrical cabinet 2 is placed, the temperature is not easy to rise; at the same time, the vibration of the air duct 9 is finally absorbed At the deformable tube 20, prevent the vibration of the air duct 9 from affecting the electrical cabinet 2; thirdly, the air-conditioning cabinet 10 has cold air due to the cooling of the air conditioner 11, and the cold air passes through the cold air pipe 12 and the connecting pipe 17 in each electrical cabinet 2 Transported into the air-conditioning room 16, the connecting pipe 17 is guaranteed to be unobstructed for a long time, and the air-conditioning room 16 is at a low temperature for a long time, which can be used to install controllers or valuable electrical components. The cold air enters the air-conditioning room 16 to cool down the installed electrical components. The controller that controls the core (PLC, also known as programmable logic controller) has been given preferential treatment, and can be placed in an air-conditioned environment for a long time, which is not prone to failure and reduces the resulting losses; since 10 air-conditioning cabinets are connected with each electrical cabinet 2, but not connected with the air outside the electrical cabinet 2, the air conditioner does not need to reduce the temperature of the entire power distribution room 1, and does not need to generate too much building energy consumption, which can play an energy-saving role; when the air outlet valve 23 in the electrical cabinet 2 is opened At this time, the cold air enters the phase 2 of the electrical cabinet through the bypass pipe 22, which can reduce the temperature of the electrical cabinet 2; fourthly, the traditional fan 24 still exists, and the fan 24 can be started when needed, and the electrical cabinet 2 The air is sucked in and the hot air in the electrical cabinet 2 is blown upward to cool down; the combination of the above four cooling and heat dissipation schemes can effectively ensure the normal operation of the electrical components in the electrical cabinet of the power distribution room.
需要说明的是：空调柜10内设有空调11制冷后，冷空气会通过冷气管12散出，这是扩散的作用，同时空调11也有一定的作用，为了使空调柜10内的冷空气更好地散出，可以在空调柜10上加装一个由外向内吸气的小风扇，使空调柜10具有正压，其内的空气能更好地从冷气管12出去，或者可在冷气管12的进口处上加装一只小风扇(功率10W-20W)，将空调柜10内的冷空气向外抽。另外龙骨4和天花板吊顶板5的安装为建筑领域的常规技术，具体不详述，但是如果在天花板吊顶板5上再设置一层保温层的话，则可以更好地将配电间1内上下两层空间隔热，因为上层空间温度高于下层空间，隔热可防止下层空间温度升高。另外，在风道9和吹风管26上都可设置可伸缩段以吸收振动。It should be noted that: after the air conditioner 10 is provided with the air conditioner 11 for cooling, the cold air will escape through the cold air pipe 12, which is the effect of diffusion, and the air conditioner 11 also has a certain effect. To dissipate well, a small fan that sucks air from the outside to the inside can be installed on the air-conditioning cabinet 10, so that the air-conditioning cabinet 10 has a positive pressure, and the air in it can go out from the cold air pipe 12 better, or it can be placed in the cold air pipe. A small fan (power 10W-20W) is installed on the entrance of 12, and the cold air in the air-conditioning cabinet 10 is drawn out outwards. In addition, the installation of the keel 4 and the ceiling slab 5 is a conventional technology in the construction field, and is not described in detail, but if another layer of insulation layer is set on the ceiling slab 5, then the upper and lower parts of the power distribution room 1 can be better arranged. The two floors are insulated because the temperature of the upper space is higher than that of the lower space, and the insulation prevents the temperature of the lower space from rising. In addition, telescopic sections can be arranged on the air duct 9 and the blowing pipe 26 to absorb vibrations.
实施例2：Example 2:
如图4、5所示，本实施例所描述的配电间电气柜的散热系统，与实施例1不同的是：所述的排气管18上部固定于所述龙骨4上，在排气管18中部设有一段可伸缩管28，在排气管18的底部设有法兰盘27，所述法兰盘27与电气柜2相连接。可伸缩管28可以是塑料褶皱管，这样排气管18可以伸缩，在安装过程中便于与电气柜2实现连接。As shown in Figures 4 and 5, the heat dissipation system of the electric cabinet in the power distribution room described in this embodiment is different from Embodiment 1 in that the upper part of the exhaust pipe 18 is fixed on the keel 4, A stretchable pipe 28 is arranged in the middle of the pipe 18 , and a flange 27 is arranged at the bottom of the exhaust pipe 18 , and the flange 27 is connected with the electrical cabinet 2 . The telescopic pipe 28 can be a plastic corrugated pipe, so that the exhaust pipe 18 can be stretched, and it is convenient to connect with the electrical cabinet 2 during installation.
实施例3：Example 3:
如图6所示，本实施例所描述的配电间电气柜的散热系统，在实施例1基础上，在每一只电气柜2内都设有温度传感器29，在其中一只空调柜10内设有总控制器30，每一只电气柜2内的温度传感器29测量该电气柜2内的温度tt并输入至总控制器30，所述总控制器30控制所述风机25以及每一只电气柜2内的出气阀23和风扇24工作且控制方法如下：As shown in Figure 6, the heat dissipation system of the electrical cabinet in the power distribution room described in this embodiment is based on Embodiment 1, and a temperature sensor 29 is provided in each electrical cabinet 2, and one of the air-conditioning cabinets 10 A master controller 30 is arranged inside, and the temperature sensor 29 in each electric cabinet 2 measures the temperature tt in the electric cabinet 2 and inputs it to the master controller 30, and the master controller 30 controls the fans 25 and each Only the air outlet valve 23 and the fan 24 in the electrical cabinet 2 work and the control method is as follows:
i.所述总控制器30每隔一段时间都控制风机25工作一次并持续时间T；T一般可以选为3至5分钟，间隔时间可以选为1-2个小时；这一步的作用是风机25能定时工作，及时除去所有电气柜2中的热量；i. the total controller 30 controls the blower fan 25 to work once every other period of time and lasts T; T can generally be selected as 3 to 5 minutes, and the interval time can be selected as 1-2 hours; the effect of this step is that the blower fan 25 can work regularly, remove the heat in all electrical cabinets 2 in time;
ii.在总控制器30内预先存储有两个温度值ta和tb，ta代表低限位温度，tb代表高限位温度，ta小于tb；ta可选为45摄氏度，tb可选为55摄氏度；当然本领域的技术人员根据实际情况可以改变ta和tb的值，ta可选在40-45摄氏度中间的某值，tb可选为50-60摄氏度中间的某值；ii. There are two temperature values ta and tb pre-stored in the master controller 30, ta represents the low limit temperature, tb represents the high limit temperature, ta is less than tb; ta can be selected as 45 degrees Celsius, and tb can be selected as 55 degrees Celsius Certainly those skilled in the art can change the value of ta and tb according to actual conditions, and ta can be selected as a certain value in the middle of 40-45 degrees Celsius, and tb can be selected as a certain value in the middle of 50-60 degrees Celsius;
iii.当有一半电气柜2的温度tt达到ta时，总控制器30控制风机25工作，直至温度tt达到ta的电气柜2的数量少于五分之一；这一步的作用是说明有较多电气柜2的温度较高，依靠对流散热及风机25定时散热不能及时降温，所以风机25工作，对所有电气柜2进行降温，直到只有较少的电气柜2(少于总数的五分之一)的温度较高(处于ta)；iii. When the temperature tt of half of the electrical cabinets 2 reaches ta, the general controller 30 controls the fan 25 to work until the number of electrical cabinets 2 whose temperature tt reaches ta is less than one-fifth; the effect of this step is to illustrate that there are more The temperature of many electrical cabinets 2 is higher, relying on convection heat dissipation and fan 25 timing cooling can not be cooled in time, so fan 25 works, all electrical cabinets 2 are cooled, until there are only less electrical cabinets 2 (less than 1/5th of the total number) 1) The temperature is higher (at ta);
iv.当有三分之一的电气柜2的温度tt达到tb时，总控制器30控制风机25工作，直至温度tt达到ta的电气柜2的数量少于五分之一；这一步的作用是说明有相当份额(总数三分之一)电气柜2的温度很高，必须马上散热，所以风机25工作，对所有电气柜2进行降温，直到只有较少的电气柜2(少于总数的五分之一)的温度处于ta；iv. When the temperature tt of one-third of the electrical cabinets 2 reaches tb, the total controller 30 controls the fan 25 to work until the number of electrical cabinets 2 whose temperature tt reaches ta is less than one-fifth; the effect of this step It is to illustrate that the temperature of the electric cabinet 2 having a considerable share (one-third of the total) is very high and must dissipate heat immediately, so the blower fan 25 works to cool down all the electric cabinets 2 until there are only a few electric cabinets 2 (less than the total number) One-fifth of the temperature) is at ta;
v.当某只电气柜2内的tt达到ta时，总控制器30控制对应电气柜2内的出气阀23打开；这一步是对上面几步的补充，因为风机25散热是集体散热，不能兼顾各别电气柜2，只能依靠电气柜2自己解决问题，有可能是这个电气柜2发热量特别大，因此必须有相对应的解决措施，上面的iii和iv两步将总数控制下来后(少于五分之一)就不管了，就必须依靠电气柜2自己解决问题，所以打开出气阀23，利用从旁通管22中出来的冷气对电气柜2降温；v. When the tt in a certain electrical cabinet 2 reaches ta, the master controller 30 controls the outlet valve 23 in the corresponding electrical cabinet 2 to open; this step is a supplement to the above steps, because the heat dissipation of the fan 25 is collective heat dissipation and cannot Taking into account the different electrical cabinets 2, we can only rely on the electrical cabinet 2 to solve the problem by itself. It may be that the electrical cabinet 2 generates a particularly large amount of heat, so there must be corresponding solutions. After the above two steps iii and iv control the total number (less than one-fifth) just no matter, just must rely on electrical cabinet 2 to solve the problem by oneself, so open outlet valve 23, utilize the cold air that comes out from bypass pipe 22 to lower the temperature of electrical cabinet 2;
vi.当某只电气柜2内的tt达到tb时，总控制器30控制对应电气柜2的风扇24持续工作。这一步的作用也是为了让电气柜2自己解决问题，但与v步不同，这一步tb温度较高，电气柜2只能依靠风扇24持续工作来解决问题，当然，由于上述方案的配合，事实上这一步出现的概率很小，因此风扇24持续工作的时间较少，可减小其振动的影响。vi. When tt in a certain electrical cabinet 2 reaches tb, the general controller 30 controls the fan 24 of the corresponding electrical cabinet 2 to continue to work. The function of this step is also to allow the electrical cabinet 2 to solve the problem by itself, but different from step v, the temperature of tb in this step is relatively high, and the electrical cabinet 2 can only rely on the continuous operation of the fan 24 to solve the problem. Of course, due to the cooperation of the above-mentioned scheme, the fact The probability that this step occurs is very small, so the fan 24 lasts for less time, which can reduce the impact of its vibration.
作为上述方案进一步的改进：所述风机25工作时，出气阀23关闭，所述风扇24不工作，风机25工作时，电气柜2内气流变化大，旁通管22和风扇24的工作效果就不明显了，不如将它们关掉。当然一定要工作着也是可以的，这样控制相对简单一些。As a further improvement of the above scheme: when the fan 25 works, the air outlet valve 23 is closed, the fan 24 does not work, and when the fan 25 works, the airflow in the electrical cabinet 2 changes greatly, and the working effect of the bypass pipe 22 and the fan 24 is just It's not obvious, it's better to turn them off. Of course, it is also possible to have to work, so the control is relatively simple.
本实施例所描述的配电间电气柜的散热系统，平时以热空气上升散热为主，上述自控方案为辅，散热效果好，且节能。The heat dissipation system of the electrical cabinet in the power distribution room described in this embodiment is mainly based on the rising of hot air for heat dissipation, supplemented by the above-mentioned automatic control scheme, which has a good heat dissipation effect and saves energy.
上述实施例仅仅是对本发明的构思作举例说明，明显地，本专利的保护范围不限于上述实施例。The above-mentioned embodiments are only examples to illustrate the concept of the present invention, and obviously, the scope of protection of this patent is not limited to the above-mentioned embodiments.
本领域技术人员对上述实施例所作的各种等同修改或补充，都应当落入本专利的保护范围。Various equivalent modifications or supplements made by those skilled in the art to the above embodiments shall fall within the scope of protection of this patent.
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