WO2014015620A1 - Oblique shoulder type plate radiator for transformer - Google Patents

Oblique shoulder type plate radiator for transformer Download PDF

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Publication number
WO2014015620A1
WO2014015620A1 PCT/CN2012/086372 CN2012086372W WO2014015620A1 WO 2014015620 A1 WO2014015620 A1 WO 2014015620A1 CN 2012086372 W CN2012086372 W CN 2012086372W WO 2014015620 A1 WO2014015620 A1 WO 2014015620A1
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WO
WIPO (PCT)
Prior art keywords
transformer
oblique shoulder
shoulder type
radiator unit
oil collecting
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PCT/CN2012/086372
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French (fr)
Chinese (zh)
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WO2014015620A8 (en
Inventor
梁义明
敖明
王朔
田春光
Original Assignee
吉林省电力有限公司电力科学研究院
吉林省电力科学研究院有限公司
国家电网公司
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Priority claimed from CN201210264355.2 external-priority
Application filed by 吉林省电力有限公司电力科学研究院, 吉林省电力科学研究院有限公司, 国家电网公司 filed Critical 吉林省电力有限公司电力科学研究院
Publication of WO2014015620A1 publication Critical patent/WO2014015620A1/en
Publication of WO2014015620A8 publication Critical patent/WO2014015620A8/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/10Liquid cooling
    • H01F27/12Oil cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05358Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices

Abstract

The present invention refers to an oblique shoulder type plate radiator for a transformer, and belongs to the field of transformer radiators. Two oblique shoulder type transformer plate radiator unit boxes are mounted to each other in parallel; an upper oil collecting pipe and a lower oil collecting pipe are connected to the two oblique shoulder type plate transformer radiator unit boxes respectively; an included angle β between the upper oil collecting pipe and a horizontal plane is 10-20 degrees; and the structure of the two oblique shoulder type transformer plate radiator unit boxes is that: a main body is provided with an upper oil collecting pipe inlet/outlet and a lower oil collecting pipe outlet, an oil channel is formed inside the main body, and a high point is formed in the middle of the oil channel and oblique shoulder angles θ from the high point towards both sides are 13-20 degrees. The present invention has the advantages that: the structure is novel; and after an ordinary transformer plate is designed in an optimized way, i.e. using an integral oblique shoulder type or a single-plate double-oblique shoulder type, the heat exchange efficiency of the plate of the transformer can be increased significantly.

Description

斜肩式变压器片式散热器 技术领域  Slanted shoulder transformer chip radiator
[0001] 本发明属于变压器散热器领域。  [0001] The invention belongs to the field of transformer radiators.
背景技术 Background technique
[0002] 国内使用的变压器片式散热器主要依据 "JB5347-1999变压器用片式散热器"标准 要求生产, 单片外形如图 la和图 lb所示, 片扇高度、 片扇宽度要符合标准要求。 以下简称 普通型变压器片式散热器。  [0002] Transformer chip radiators used in China are mainly produced according to the standard requirements of "JB5347-1999 chip radiators for transformers". The single-piece shape is shown in Figure la and Figure lb. The height of the fan and the width of the fan must conform to the standard. Claim. Hereinafter referred to as a common type of transformer chip radiator.
[0003] 随着科技进步和国民经济飞速发展, 人们在生活生产当中对能源的需求逐渐增 加, 尤其是对电能的需求日益剧增, 因此电力系统逐步向大容量、 大电网、 特高压方向发 展。 变压器是电力系统中重要的电气设备之一, 其可将高电压和大电流转变成另一种或几种 同频率的不同电压和电流。 当变压器运行时, 由于电阻和磁阻的存在, 铁心、 线圈和钢结构 均要产生损耗, 此损耗变为热能, 造成变压器发热和温度上升。 随着变压器容量的提高, 变 压器过热的问题亦越来越突出。 变压器温度过高不仅致使输电损耗加大, 而且造成变压器绝 缘材料的绝缘电阻下降, 加速绝缘材料老化, 引发局部放电, 导致输出容量大大地低于额定 容量, 降低变压器的效率, 缩短变压器的使用寿命。 由于变压器的安全运行直接影响到整个 电力系统的安全可靠性, 因此随着输电距离和输送容量的加大, 以及变压器数量的增多, 电 力系统要求变压器不仅性能好、 技术指标和经济指标先进, 而且还要保证变压器运行安全、 可靠。 由此可见, 变压器的冷却问题对保证电力系统的安全运行非常重要。 现今变压器的冷 却主要使用片式散热器, 其要受到变压器周围空间限制, 因此如何提高其散热能力, 加快变 压器的冷却速度和效率, 延长变压器的使用寿命是工程中急需解决的问题。  [0003] With the advancement of science and technology and the rapid development of the national economy, people's demand for energy in their daily production is gradually increasing, especially the demand for electric energy is increasing rapidly. Therefore, the power system is gradually developing toward large capacity, large power grid and UHV. . A transformer is one of the important electrical devices in a power system that converts high voltages and large currents into one or more different voltages and currents of the same frequency. When the transformer is running, due to the existence of resistance and reluctance, the core, the coil and the steel structure are both depleted, and this loss becomes thermal energy, causing the transformer to heat up and rise in temperature. As the capacity of the transformer increases, the problem of overheating of the transformer is becoming more and more prominent. Excessive temperature of the transformer not only causes the transmission loss to increase, but also causes the insulation resistance of the transformer insulation material to decrease, accelerates the aging of the insulation material, and causes partial discharge, resulting in the output capacity being much lower than the rated capacity, reducing the efficiency of the transformer and shortening the service life of the transformer. . Since the safe operation of the transformer directly affects the safety and reliability of the entire power system, as the transmission distance and the transmission capacity increase, and the number of transformers increases, the power system requires that the transformer not only has good performance, technical indicators and economic indicators, but also Also ensure that the transformer is safe and reliable. It can be seen that the cooling problem of the transformer is very important to ensure the safe operation of the power system. Today's transformers mainly use chip radiators, which are limited by the space around the transformer. Therefore, how to improve their heat dissipation capacity, speed up the cooling speed and efficiency of the transformer, and prolong the service life of the transformer are urgent problems to be solved in the project.
[0004] 近些年, 国内外研究人员主要围绕变压器内部及变压器的冷却系统开展热特性分 析。 [0004] In recent years, researchers at home and abroad have focused on thermal analysis of transformers and transformer cooling systems.
[0005] 在国外, Swift G 使用简单的等效电路表示变压器内热流动方程。 Radakovic Z. 通 过计算求出变压器中最热点温度, 并对变压器油箱的模型进行改进。 Reddy使用有限元模型 计算风冷变压器中的涡流损失, 并建立等效电路表示热模型。 Faiz J.使用 ANSYS 软件计算 变压器损耗和绕组中温度场分布, 计算中设定绕组中的油温不变, 而且该模型仅对单层绕组 进行建模。 M.A. Taghikhani基于传热理论, 采用有限元方法, 仿真模拟出变压器绕组内温度 场分布。 R. Hosseinia建模计算变压器绕组及其绝热系统的热特性, 确定变压器冷却系统影 响因素; 对建立几个冷却系统方案进行比较分析, 研究不同几何参数对变压器绕组的冷却过 程的影响效果; 同时求出变压器热点位置和热损失大小。 替换页 (细则第 26条) [0006] 在国内, 1999 年沈阳变压器研究所的陆万烈对 "热模拟"原理间接测量变压器绕组 温度进行误差分析, 提出消除 "热模拟"误差的方法。 2001 年沈阳变压器责任有限公司的 汤焱用控制容积法对变压器绕组的流场和温度场进行仿真计算, 并利用实验方法对变压器绕 组仿真模型进行验证, 结果表明仿真结果与实验结果基本相符。 2003 年大连理工大学的丛 龙飞对油浸风冷三相变压器的三维非稳态温度场进行数学模拟, 建立了其参数辨识的优化算 法, 并证明油浸风冷变压器参数识别模型 CP算法及软件正确。 2010年重庆大学的梁亚峰对 油浸式变压器的热行为进行分析, 分别研究电力变压器内部损耗机理, 以及油浸式电力变压 器的不同冷却方式和温升变化, 分析变压器的绕组、 铁芯和变压器油的升温和降温特性曲 线。 同时在搭建的变压器温升试验平台上对变压器绕组的温度分布进行测量, 得到了变压器 内部的温度与时间、 纵向高度之间的关系曲线。 最后基于数值模拟计算方法, 通过仿真计算 了变压器内部温度场, 得出绕组沿纵向高度变化的温度特性, 并提出绕组热点定位方法, 进 而应用实验方法进行验证。 [0005] In foreign countries, Swift G uses a simple equivalent circuit to represent the heat flow equation in a transformer. Radakovic Z. calculated the hottest temperature in the transformer and improved the model of the transformer tank. Reddy uses a finite element model to calculate the eddy current losses in an air-cooled transformer and establish an equivalent circuit representation thermal model. Faiz J. uses ANSYS software to calculate the transformer loss and the temperature field distribution in the winding. The oil temperature in the set winding is constant, and the model only models the single-layer winding. Based on the heat transfer theory, MA Taghikh a ni uses the finite element method to simulate the temperature field distribution in the transformer winding. R. Hosseinia models and calculates the thermal characteristics of transformer windings and their insulation systems, determines the influencing factors of the transformer cooling system; compares and analyzes several cooling system schemes, and studies the effects of different geometric parameters on the cooling process of transformer windings; Out of the transformer hot spot location and heat loss. Replacement page (Article 26) [0006] In China, Lu Wanlie of the Shenyang Transformer Research Institute in 1999 conducted an error analysis on the indirect measurement of the transformer winding temperature by the principle of "thermal simulation", and proposed a method to eliminate the "thermal simulation" error. In 2001, Tang Wei of Shenyang Transformer Co., Ltd. simulated the flow field and temperature field of the transformer winding by the control volume method, and verified the transformer winding simulation model by experimental method. The results show that the simulation results are basically consistent with the experimental results. In 2003, Cong Longfei of Dalian University of Technology carried out mathematical simulation of the three-dimensional unsteady temperature field of oil-immersed air-cooled three-phase transformer, established its parameter identification optimization algorithm, and proved that the CP algorithm and software of oil-immersed air-cooled transformer parameter identification model are correct. . In 2010, Liang Yafeng of Chongqing University analyzed the thermal behavior of oil-immersed transformers, studied the internal loss mechanism of power transformers, and the different cooling methods and temperature rises of oil-immersed power transformers, and analyzed the windings, iron cores and transformer oil of transformers. The heating and cooling characteristics of the curve. At the same time, the temperature distribution of the transformer winding was measured on the built transformer temperature rise test platform, and the relationship between the temperature inside the transformer and the time and longitudinal height was obtained. Finally, based on the numerical simulation method, the internal temperature field of the transformer is calculated by simulation, the temperature characteristics of the winding along the longitudinal height are obtained, and the winding hot spot positioning method is proposed, and then the experimental method is used for verification.
[0007] 近些年, 河北工业大学在变压器的温度场和冷却结构集中开展研究, 并取得了一系 列成果。 2005 年韩鹏针对大型自然油循环导向冷却结构变压器进行换热特性分析, 完成了 大型自然油循环导向冷却方式变压器的油流分布和绕组温度场计算。 同时采用仿真计算建立 线圈最热点求解方法, 分别确定从线圈底部进入线圈的油流入口油温。 通过变压器热负荷与 油流带出热量的平衡关系求出油流量, 进而对线圈油流分布进行数值计算, 得出油流阻力分 布。 利用实验模型和结果对理论计算结果的油流分布和温度场分布进行检验, 证明二者吻合 良好。 2006年苏丽娜对大型自然油循环导向冷却结构变压器的发热冷却及流动换热的基本 现象和原理进行分析, 进而针对使用片式散热器的自然油循环导向结构变压器, 建立各部分 温升计算数学模型, 通过对变压器发热冷却原理进行分析和数值模拟, 编制了一个计算大型 自然油导向结构变压器平均油温升、 顶油温升、 平均绕组温升的计算软件该软件, 可以计算 此类变压器在自冷和风冷两种情况下的温升值, 并对影响温升的各种因素进行了分析。  [0007] In recent years, Hebei University of Technology has conducted research on the temperature field and cooling structure of transformers, and has achieved a series of results. In 2005, Han Peng analyzed the heat transfer characteristics of a large natural oil circulation-oriented cooling structure transformer, and completed the oil flow distribution and winding temperature field calculation of the large natural oil circulation-oriented cooling mode transformer. At the same time, the hottest solution method of the coil is established by simulation calculation, and the oil inlet temperature of the oil entering the coil from the bottom of the coil is determined. The oil flow rate is obtained by the balance between the thermal load of the transformer and the heat generated by the oil flow, and the distribution of the oil flow of the coil is numerically calculated to obtain the oil flow resistance distribution. The experimental model and the results were used to test the oil flow distribution and temperature field distribution of the theoretical calculation results, which proved that the two were in good agreement. In 2006, Su Lina analyzed the basic phenomena and principles of heat-cooling and flow heat transfer of large natural oil circulation-oriented cooling structure transformers, and then established a mathematical model for calculating the temperature rise of each part for the natural oil circulation-guided structure transformer using the chip radiator. Through the analysis and numerical simulation of the transformer heating and cooling principle, a calculation software for calculating the average oil temperature rise, the top oil temperature rise and the average winding temperature rise of the large natural oil guiding structure transformer is compiled. The temperature rise in both cold and air-cooled conditions and the various factors affecting the temperature rise were analyzed.
[0008] 从以上研究实例可以看出, 加强传热效果的研究工作多集中在自冷油浸变压器内部 温度场的模拟仿真计算和外部片组的安装运行和片组内部变压器油的强化流动等方面, 而对 变压器片式散热器整体片扇优化设计研究较少。 本专利正是对国内电力系统内广泛采用的普 通型片式散热器的形状和结构进行优化设计, 提高其换热效果。 [0008] It can be seen from the above research examples that the research work of enhancing the heat transfer effect mostly focuses on the simulation and calculation of the internal temperature field of the self-cooling oil-immersed transformer, the installation operation of the external chip set, and the enhanced flow of the transformer oil inside the chip group. On the other hand, there are few researches on the optimization design of the integral fan of the transformer chip radiator. This patent is to optimize the shape and structure of the general-purpose chip radiator widely used in domestic power systems to improve the heat exchange effect.
发明内容 Summary of the invention
[0009] 本发明提供一种斜肩式变压器片式散热器, 以解决目前变压器片式散热器散热效率 不高的问题。  [0009] The present invention provides a slanting shoulder type transformer chip heat sink to solve the problem that the current heat dissipation efficiency of the transformer chip type heat sink is not high.
[0010] 本发明采取的技术方案是: 双斜肩式变压器片式散热器单元盒相互平行安装, 上集 替换页 (细则第 26条) 油管和下集油管分别与双斜肩式变压器片式散热器单元盒连接, 该上集油管与水平的夹角 为 10°~20°; 所述的双斜肩式变压器片式散热器单元盒的结构是: 主体有上集油管进出口、 下集油管出口, 主体内部有油道, 该油道中部为高点、 且向两边的斜肩角度 为 13°~20°。 [0010] The technical solution adopted by the present invention is as follows: The double oblique shoulder type transformer type radiator unit box is installed in parallel with each other, and the upper set replacement page (Article 26) The oil pipe and the lower oil collecting pipe are respectively connected with the double oblique shoulder type transformer type radiator unit box, and the angle between the upper oil collecting pipe and the horizontal is 10°~20° ; the double oblique shoulder type transformer chip radiator unit box The structure is as follows: The main body has an upper and lower oil collecting pipe inlet and a lower oil collecting pipe outlet, and the main body has an oil passage, the middle portion of the oil passage is a high point, and the angle of the oblique shoulder to the two sides is 13° to 20°.
[0011] 本发明一种实施方式是: 双斜肩式变压器片式散热器单元盒的油道宽度从中间向两侧 按等差数列逐渐增加, 公差 rf=3mm~10mm。 [0011] One embodiment of the present invention is as follows: The oil passage width of the double oblique shoulder type transformer type radiator unit box is gradually increased from the middle to the two sides by an arithmetic progression, and the tolerance rf=3 mm~10 mm.
[0012] 本发明的优点是结构新颖, 当普通变压器片扇采取优化设计后, 即采取整体斜肩 式、 单片扇双斜肩式时, 变压器片片扇的换热效率能显著提高。  [0012] The invention has the advantages that the structure is novel. When the ordinary transformer fan adopts the optimized design, that is, when the overall oblique shoulder type and the single-piece fan double oblique shoulder type are adopted, the heat exchange efficiency of the transformer piece fan can be significantly improved.
附图说明 DRAWINGS
[0013] 图 la是现有普通变压器片式散热器的结构示意图, 图中 1是变压器片式散热器单元 盒, 2是集油管, 3是变压器;  [0013] FIG. 1 is a schematic structural view of a conventional conventional transformer chip radiator, wherein 1 is a transformer chip radiator unit box, 2 is a collecting pipe, and 3 is a transformer;
图 lb是现有普通变压器片式散热器单元盒的结构示意图; Figure lb is a schematic structural view of a conventional common transformer chip heat sink unit box;
图 2a是本发明的结构示意图; Figure 2a is a schematic structural view of the present invention;
图 2b是图 2a的右视图; Figure 2b is a right side view of Figure 2a;
图 3a是本发明双斜肩式变压器片式散热器单元盒的结构示意图; 3a is a schematic structural view of a double oblique shoulder type transformer chip radiator unit case of the present invention;
图 3b是本发明双斜肩式变压器片式散热器单元盒油道横截面的结构示意图, 图中以 7个油 道为例; Figure 3b is a structural schematic view showing the cross section of the oil passage of the double oblique shoulder type transformer chip radiator unit casing of the present invention, taking seven oil passages as an example;
图 4是本发明 PC1200-26/320不同改造角度换热效率变化图; Figure 4 is a graph showing changes in heat transfer efficiency of PC1200-26/320 according to the present invention;
图 5是本发明 PC2000-26/480不同改造角度换热效率变化图; Figure 5 is a graph showing changes in heat transfer efficiency of different retrofit angles of the PC2000-26/480 of the present invention;
图 6是本发明 PC2500-26/520不同改造角度换热效率变化图; 6 is a graph showing changes in heat exchange efficiency of different retrofit angles of the PC 2500-26/520 of the present invention;
图 7是本发明 PC1200-26/320优化前后换热效率变化图; 7 is a graph showing changes in heat exchange efficiency before and after optimization of the PC1200-26/320 of the present invention;
图 8是本发明 PC2000-26/480优化前后换热效率变化图; Figure 8 is a graph showing changes in heat exchange efficiency before and after optimization of the PC2000-26/480 of the present invention;
图 9是本发明 PC2500-26/520优化前后换热效率变化; 9 is a change in heat exchange efficiency before and after optimization of the PC2500-26/520 of the present invention;
图 10是 PC1200-26/320不同改造角度换热效率变化图; Figure 10 is a graph showing changes in heat transfer efficiency of PC1200-26/320 at different retrofit angles;
图 11是 PC2000-26/480不同改造角度换热效率变化图; Figure 11 is a graph showing changes in heat transfer efficiency of PC2000-26/480 at different retrofit angles;
图 12是 PC2500-26/520不同改造角度换热效率变化图; Figure 12 is a graph showing changes in heat transfer efficiency of PC2500-26/520 at different retrofit angles;
图 13a是单侧斜肩油道整体轮廓示意图; Figure 13a is a schematic view of the overall outline of the one-sided oblique shoulder oil passage;
图 13b是双侧斜肩油道整体轮廓示意图; Figure 13b is a schematic view of the overall outline of the double-sided oblique shoulder oil passage;
图 14是 PC1200-26/320单、 双斜肩式变压器片扇与普通片扇的换热效率比较图; 图 15是 PC2000-26/480单、 双斜肩式变压器片扇与普通片扇的换热效率比较图; 图 16是 PC2500-26/520 单、 双斜肩式变压器片扇与普通片扇的换热效率比较图; 图 17是 PC1200-26/320不同油道分布方式换热效率变化图; 替换页 (细则第 26条) 图 18是 PC2000-26/480不同油道分布方式换热效率变化图; Figure 14 is a comparison of heat exchange efficiency between PC1200-26/320 single and double oblique shoulder transformer fan and ordinary fan; Figure 15 is a PC2000-26/480 single and double oblique shoulder transformer fan and ordinary fan Comparison of heat transfer efficiency; Figure 16 is a comparison of heat transfer efficiency between PC2500-26/520 single and double oblique shoulder transformer fan and ordinary fan; Figure 17 is the heat transfer efficiency of PC1200-26/320 different oil passage distribution Change chart; replacement page (Article 26) Figure 18 is a graph showing changes in heat transfer efficiency of different oil passage distribution modes of PC2000-26/480;
图 19 是 PC2500-26/520不同油道分布方式换热效率变化图。 Figure 19 is a graph showing the heat transfer efficiency changes of different oil channel distribution modes of PC2500-26/520.
具体实施方式 detailed description
[0014] 实施例 1 [0014] Embodiment 1
双斜肩式变压器片式散热器单元盒 1相互平行安装、 上集油管 2和下集油管 3分别与双斜肩 式变压器片式散热器单元盒 1连接, 该上集油管 2与水平的夹角 为 10°; 所述的双斜肩式 变压器片式散热器单元盒 1的结构是: 主体 101有上集油管进口 102、 下集油管出口 104, 主体内部有油道 103, 该油道中部为高点、 且向两边的斜肩角度 Θ为 13°, 双斜肩式变压器 片式散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差 3mm。 The double oblique shoulder type transformer type radiator unit box 1 is installed in parallel with each other, and the upper oil collecting tube 2 and the lower oil collecting tube 3 are respectively connected with the double oblique shoulder type transformer type radiator unit box 1, the upper oil collecting tube 2 and the horizontal clamp The angle is 10°; the structure of the double oblique shoulder type transformer radiator unit 1 is: the main body 101 has an upper oil collection pipe inlet 102 and a lower oil collection pipe outlet 104, and an oil passage 103 is inside the main body, and the oil passage central portion For the high point, and the angle of the oblique shoulder to the two sides is 13°, the oil passage width of the double oblique shoulder type transformer chip radiator unit box is gradually increased from the middle to the two sides by a series of equal tolerances, and the tolerance is 3 mm.
[0015] 实施例 2 [0015] Example 2
双斜肩式变压器片式散热器单元盒 1相互平行安装、 上集油管 2和下集油管 3分别与双斜肩 式变压器片式散热器单元盒 1连接, 该上集油管 2与水平的夹角 为 15β; 所述的双斜肩式 变压器片式散热器单元盒 1的结构是: 主体 101有上集油管进口 102、 下集油管出口 104, 主体内部有油道 103, 该油道中部为高点、 且向两边的斜肩角度 θ % 16.5°, 双斜肩式变压器 片式散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差 3mm。 The double oblique shoulder type transformer type radiator unit box 1 is installed in parallel with each other, and the upper oil collecting tube 2 and the lower oil collecting tube 3 are respectively connected with the double oblique shoulder type transformer type radiator unit box 1, the upper oil collecting tube 2 and the horizontal clamp The angle is 15 β ; the structure of the double oblique shoulder type transformer type radiator unit box 1 is: the main body 101 has an upper oil collection pipe inlet 102 and a lower oil collection pipe outlet 104, and the main body has an oil passage 103, the middle of the oil passage For the high point and the oblique shoulder angle θ % 16.5° on both sides, the oil passage width of the double oblique shoulder type transformer plate radiator unit box is gradually increased from the middle to the both sides by a differential sequence with a tolerance of 3 mm.
[0016] 实施例 3 [0016] Example 3
双斜肩式变压器片式散热器单元盒 1相互平行安装、 上集油管 2和下集油管 3分别与双斜肩 式变压器片式散热器单元盒 1连接, 该上集油管 2与水平的夹角 β为 20°; 所述的双斜肩式 变压器片式散热器单元盒 1的结构是: 主体 101有上集油管进口 102、 下集油管出口 104, 主体内部有油道 103, 该油道中部为高点、 且向两边的斜肩角度 Θ为 20°, 双斜肩式变压器 片式散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差 3mm。 The double oblique shoulder type transformer type radiator unit box 1 is installed in parallel with each other, and the upper oil collecting tube 2 and the lower oil collecting tube 3 are respectively connected with the double oblique shoulder type transformer type radiator unit box 1, the upper oil collecting tube 2 and the horizontal clamp The angle β is 20°; the structure of the double oblique shoulder type transformer radiator unit 1 is: the main body 101 has an upper oil collection pipe inlet 102 and a lower oil collection pipe outlet 104, and an oil passage 103 is inside the main body, the oil passage The middle part is a high point, and the angle of the oblique shoulders on both sides is 20°, and the oil passage width of the double oblique shoulder type transformer chip radiator unit box is gradually increased from the middle to the both sides by an arithmetic progression with a tolerance of 3 mm.
10017] 实施例 4 10017] Example 4
双斜肩式变压器片式散热器单元盒 1相互平行安装、 上集油管 2和下集油管 3分别与双斜肩 式变压器片式散热器单元盒 1连接, 该上集油管 2与水平的夹角 β为 10°; 所述的双斜肩式 变压器片式散热器单元盒 1 的结构是: 主体 101有上集油管进口 102、 下集油管出口 104, 主体内部有油道 103, 该油道中部为高点、 且向两边的斜肩角度 θ % 13°, 双斜肩式变压器 片式散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差 rf=6.5mm。 The double oblique shoulder type transformer type radiator unit box 1 is installed in parallel with each other, and the upper oil collecting tube 2 and the lower oil collecting tube 3 are respectively connected with the double oblique shoulder type transformer type radiator unit box 1, the upper oil collecting tube 2 and the horizontal clamp The angle β is 10°; the structure of the double oblique shoulder type transformer radiator unit 1 is: the main body 101 has an upper oil collection pipe inlet 102 and a lower oil collection pipe outlet 104, and an oil passage 103 is inside the main body, the oil passage The middle part is a high point, and the oblique shoulder angle θ % 13° to both sides, the oil passage width of the double oblique shoulder type transformer type radiator unit box is gradually increased from the middle to the both sides by an arithmetic progression with a tolerance rf=6.5 mm.
[0018] 实施例 5 [0018] Example 5
双斜肩式变压器片式散热器单元盒 1相互平行安装、 上集油管 2和下集油管 3分别与双斜肩 式变压器片式散热器单元盒 1连接, 该上集油管 2与水平的夹角 为 15°; 所述的双斜肩式 变压器片式散热器单元盒 1 的结构是: 主体 101有上集油管进口 102、 下集油管出口 104, 替换页 (细则第 26条) 主体内部有油道 103, 该油道中部为高点、 且向两边的斜肩角度 ^为 16.5°, 双斜肩式变压器 片式散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差^ 6.5mm。 The double oblique shoulder type transformer type radiator unit box 1 is installed in parallel with each other, and the upper oil collecting tube 2 and the lower oil collecting tube 3 are respectively connected with the double oblique shoulder type transformer type radiator unit box 1, the upper oil collecting tube 2 and the horizontal clamp The angle is 15°; the structure of the double oblique shoulder type transformer radiator unit 1 is: The main body 101 has an upper oil collection pipe inlet 102 and a lower oil collection pipe outlet 104, and a replacement page (Article 26) There is an oil passage 103 inside the main body, the middle part of the oil passage is a high point, and the angle of the oblique shoulder to the two sides is 16.5°, and the oil passage width of the double oblique shoulder type transformer type radiator unit box is equal to the east side to the both sides. The series is gradually increasing with a tolerance of 6.5mm.
[0019] 实施例 6 [0019] Example 6
双斜肩式变压器片式散热器单元盒 1相互平行安装、 上集油管 2和下集油管 3分别与双斜肩 式变压器片式散热器单元盒 1连接, 该上集油管 2与水平的夹角 β为 20°; 所述的双斜肩式 变压器片式散热器单元盒 1 的结构是: 主体 101有上集油管进口 102、 下集油管出口 104, 主体内部有油道 103, 该油道中部为高点、 且向两边的斜肩角度 0为 20°, 双斜肩式变压器 片式散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差 rf=6.5mm。 The double oblique shoulder type transformer type radiator unit box 1 is installed in parallel with each other, and the upper oil collecting tube 2 and the lower oil collecting tube 3 are respectively connected with the double oblique shoulder type transformer type radiator unit box 1, the upper oil collecting tube 2 and the horizontal clamp The angle β is 20°; the structure of the double oblique shoulder type transformer radiator unit 1 is: the main body 101 has an upper oil collection pipe inlet 102 and a lower oil collection pipe outlet 104, and an oil passage 103 is inside the main body, the oil passage The middle part is a high point, and the angle of the shoulder to the two sides is 0°, and the oil passage width of the double oblique shoulder type transformer type radiator unit box is gradually increased from the middle to the both sides by an arithmetic progression with a tolerance rf=6.5 mm.
[0020] 实施例 7 [0020] Example 7
双斜肩式变压器片式散热器单元盒 1相互平行安装、 上集油管 2和下集油管 3分别与双斜肩 式变压器片式散热器单元盒 1连接, 该上集油管 2与水平的夹角 β为 10°; 所述的双斜肩式 变压器片式散热器单元盒 1的结构是: 主体 101有上集油管进口 102、 下集油管出口 104, 主体内部有油道 103, 该油道中部为高点、 且向两边的斜肩角度 Θ为 13°, 双斜肩式变压器 片式散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差 10mm。 The double oblique shoulder type transformer type radiator unit box 1 is installed in parallel with each other, and the upper oil collecting tube 2 and the lower oil collecting tube 3 are respectively connected with the double oblique shoulder type transformer type radiator unit box 1, the upper oil collecting tube 2 and the horizontal clamp The angle β is 10°; the structure of the double oblique shoulder type transformer radiator unit 1 is: the main body 101 has an upper oil collection pipe inlet 102 and a lower oil collection pipe outlet 104, and an oil passage 103 is inside the main body, the oil passage The middle part is a high point, and the angle of the oblique shoulder to the two sides is 13°, and the oil passage width of the double oblique shoulder type transformer type radiator unit box is gradually increased from the middle to the both sides by an arithmetic progression with a tolerance of 10 mm.
[0021] 实施例 8 Embodiment 8
双斜肩式变压器片式散热器单元盒 1相互平行安装、 上集油管 2和下集油管 3分别与双斜肩 式变压器片式散热器单元盒 1连接, 该上集油管 2与水平的夹角 为 15°; 所述的双斜肩式 变压器片式散热器单元盒 1的结构是: 主体 101有上集油管进口 102、 下集油管出口 104, 主体内部有油道 103, 该油道中部为高点、 且向两边的斜肩角度 θ % 16.5°, 双斜肩式变压器 片式散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差 i/=10mm。 The double oblique shoulder type transformer type radiator unit box 1 is installed in parallel with each other, and the upper oil collecting tube 2 and the lower oil collecting tube 3 are respectively connected with the double oblique shoulder type transformer type radiator unit box 1, the upper oil collecting tube 2 and the horizontal clamp The angle is 15°; the structure of the double oblique shoulder type transformer type radiator unit box 1 is: the main body 101 has an upper oil collection pipe inlet 102 and a lower oil collection pipe outlet 104, and an oil passage 103 is inside the main body, and the oil passage central portion For the high point and the oblique shoulder angle θ % 16.5° on both sides, the oil passage width of the double oblique shoulder type transformer chip radiator unit box is gradually increased from the middle to the both sides by the arithmetic progression with a tolerance of i/= 10 mm.
[0022] 实施例 9 Example 9
双斜肩式变压器片式散热器单元盒 1相互平行安装、 上集油管 2和下集油管 3分别与双斜肩 式变压器片式散热器单元盒 1连接, 该上集油管 2与水平的夹角 为 20°; 所述的双斜肩式 变压器片式散热器单元盒 1的结构是: 主体 101有上集油管进口 102、 下集油管出口 104, 主体内部有油道 103, 该油道中部为高点、 且向两边的斜肩角度 Θ为 20°, 双斜肩式变压器 片式散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差 10mm。 The double oblique shoulder type transformer type radiator unit box 1 is installed in parallel with each other, and the upper oil collecting tube 2 and the lower oil collecting tube 3 are respectively connected with the double oblique shoulder type transformer type radiator unit box 1, the upper oil collecting tube 2 and the horizontal clamp The angle is 20°; the structure of the double oblique shoulder type transformer radiator unit 1 is: the main body 101 has an upper oil collection pipe inlet 102 and a lower oil collection pipe outlet 104, and an oil passage 103 is inside the main body, and the oil passage central portion For the high point, and the angle of the oblique shoulder to the two sides is 20°, the oil passage width of the double oblique shoulder type transformer chip radiator unit box is gradually increased from the middle to the both sides by an arithmetic progression with a tolerance of 10 mm.
[0023] 下边通过仿真试验来进一步说明本发明。 [0023] The present invention is further illustrated by simulation experiments below.
[0024] 仿真试验 1 Simulation test 1
从片宽由小到大, 选取了 PC1200-26/320 , PC2000-26/480, PC2500-26/520 等常用型变压 器片扇。 对于不同尺寸的散热器单片扇采用双斜肩式变压器片式散热器单元盒, 双斜肩式变 压器片式散热器单元盒的斜肩角度为 20°。 随着散热器上集油管与水平的夹角 增加, 换热 替换页 (细则第 26条) 效率都出现先增加而后降低的趋势。 From the small to large width, PC1200-26/320, PC2000-26/480, PC2500-26/520 and other common transformer blades were selected. For the different size of the radiator single-piece fan, the double-shoulder-type transformer chip radiator unit box is used, and the double oblique-shoulder transformer-type radiator unit box has an oblique shoulder angle of 20°. As the angle between the collector and the level of the radiator increases, the heat exchange replacement page (Article 26) Efficiency has increased first and then decreased.
[00251 例如 PC1200-26/320 、 PC2000-26/480, PC2500-26/520型片扇 从 0到 30°时单片 扇换热效果如图 4、 图 5、 图 6所示。 PC 1200-26/320、 PC2000-26/480、 PC2500-26/520三种 尺寸片扇组成的成组散热器的最佳与水平的夹角 分别为 10°、 15°、 20°, 当 超过 25 °时, 片扇的换热效率有明显的下降趋势。 因此, 综合考虑不同尺寸的散热器, 则上部集油管倾斜 角度 9最佳为 10°~20°。  [00251 For example, PC1200-26/320, PC2000-26/480, PC2500-26/520 type fan fan heat transfer effect from 0 to 30 ° as shown in Figure 4, Figure 5, Figure 6. The best angles between the set of heat sinks of PC 1200-26/320, PC2000-26/480 and PC2500-26/520 are 10°, 15°, 20°, respectively. At 25 °, the heat transfer efficiency of the fan has a significant downward trend. Therefore, considering the radiators of different sizes, the inclination angle 9 of the upper header is preferably 10° to 20°.
[0026] 仿真试验 2 Simulation test 2
对采用双斜肩式变压器片式散热器单元盒的变压器片式散热器, 采取优化设计后, 即采取上 部集油管倾斜角度 为 10°~20°时, 变压器片扇的换热效率比优化设计前 为 0°时, 能显著 提高。 For the transformer chip radiator with double shoulder-type transformer chip radiator unit box, after the optimized design, that is, when the upper collector pipe inclination angle is 10°~20°, the heat exchange efficiency ratio of the transformer fan is optimized. When the front is 0°, it can be significantly improved.
[0027] 针对 PC1200-26/320 型成组片扇散热器采用优化设计, 即上部集油管倾斜角度 为 10°, 采用双斜肩式变压器片式散热器单元盒, 斜肩角度为 20°, 片扇间距 45mm, 单片扇油 道宽度从中间向外侧为 45mm、 50mm。 通过仿真计算, 对比优化前、 即上部集油管倾斜角 度 为 0°, 本发明散热器换热效率提高 9%, 改进效果如图 7所示。  [0027] For the PC1200-26/320 type group fan radiator, the optimized design is adopted, that is, the upper oil collecting pipe has an inclination angle of 10°, and the double oblique shoulder type transformer chip radiator unit box has an oblique shoulder angle of 20°. The fan spacing is 45 mm, and the width of the single-piece fan channel is 45 mm and 50 mm from the center to the outside. Through simulation calculation, before the comparison optimization, that is, the inclination angle of the upper collecting pipe is 0°, the heat exchange efficiency of the radiator of the invention is improved by 9%, and the improvement effect is shown in Fig. 7.
[0028] 针对 PC2000-26/480 型成组片扇散热器采用优化设计, 即上部集油管倾斜角度 为 15°, 采用双斜肩式变压器片式散热器单元盒, 斜肩角度为 20°, 片扇间距 45mm, 单片扇油 道宽度从中间向外侧为 40mm、 45mm, 50mm。 通过仿真计算, 对比优化前双斜肩式单元盒 的变压器片式散热器, 对比优化前、 即上部集油管倾斜角度 为 0°, 本发明散热器换热效率 提高 3%, 改进效果如图 8所示。  [0028] The PC2000-26/480 type group fan fan radiator is optimized, that is, the upper oil collecting pipe has an inclination angle of 15°, and the double oblique shoulder type transformer chip radiator unit box has an oblique shoulder angle of 20°. The fan spacing is 45mm, and the width of the single-piece fan channel is 40mm, 45mm, and 50mm from the center to the outside. Through simulation calculation, the transformer chip radiator of the double oblique shoulder unit box is compared and optimized. Before the comparison and optimization, that is, the inclination angle of the upper collecting pipe is 0°, the heat exchange efficiency of the radiator of the invention is improved by 3%, and the improvement effect is as shown in FIG. 8 . Shown.
[0029] 针对 PC2500-26/520 型成组片扇散热器采用优化设计, 即上部集油管倾斜角度 为 20°, 采用双斜肩式变压器片式散热器单元盒, 斜肩角度为 20°, 片扇间距 45mm, 单片扇油 道宽度从中间向外侧为 40mm、 43mm, 46mm, 49mm。 通过仿真计算, 对比优化前双斜肩 式单元盒的变压器片式散热器, 对比优化前、 即上部集油管倾斜角度 为 0°, 本发明散热器 换热效率提高 4%, 改进效果如图 9所示。  [0029] For the PC2500-26/520 type group fan radiator, the optimized design is adopted, that is, the upper collecting pipe has an inclination angle of 20°, and the double oblique shoulder type transformer chip radiator unit box has an oblique shoulder angle of 20°. The fan spacing is 45mm, and the width of the single-piece fan channel is 40mm, 43mm, 46mm, 49mm from the middle to the outside. Through simulation calculation, the transformer chip radiator of the double oblique shoulder unit box is compared and optimized. Before the comparison optimization, that is, the inclination angle of the upper collecting pipe is 0°, the heat exchange efficiency of the radiator of the invention is improved by 4%, and the improvement effect is as shown in FIG. 9 . Shown.
[0030] 结论 [0030] Conclusion
当普通变压器片扇采取优化设计后, 即采取本发明时, 变压器片片扇的换热效率能显著提 高。 When the conventional transformer fan is optimized, that is, when the present invention is adopted, the heat exchange efficiency of the transformer piece fan can be remarkably improved.
[0031] 仿真试验 3双斜肩式变压器片式散热器单元盒的换热效率研究  [0031] Simulation test 3 heat transfer efficiency of double oblique shoulder transformer chip radiator unit box
1、 仿真试验中, 从片宽由小到大, 选取了 PC 1200-26/320、 PC2000-26/480、 PC2500-26/520 等常用型变压器片扇。 对于不同尺寸的散热器片扇, 随着片扇上部油道削肩角度增加, 换热 效率都出现先增加而后降低的趋势。 替换页 (细则第 26条) [0032] 例如 PC1200-26/320 、 PC2000-26/480、 PC2500-26/520型片扇 S从 0到 30°时单片扇 换热效果如图 10、 图 11、 图 12所示。 PC 1200-26/320、 PC2000-26/480, PC2500-26/520三 种尺寸片扇的最佳削肩角度分别为 13°、 18°、 20°, 当削肩角度超过 25 °时, 片扇的换热效率 有明显的下降趋势。 因此, 综合考虑不同尺寸的散热器, 则上部油道削肩角度 ^最佳为 13ο~20°°。 1. In the simulation test, from the small to large width, PC 1200-26/320, PC2000-26/480, PC2500-26/520 and other common transformer blades were selected. For different sizes of radiator fan blades, as the angle of the upper oil passage shoulder of the fan increases, the heat exchange efficiency increases first and then decreases. Replacement page (Article 26) [0032] For example, the heat transfer effect of the single-chip fan when the PC1200-26/320, PC2000-26/480, and PC2500-26/520 type fan S is from 0 to 30° is as shown in FIG. 10, FIG. 11, and FIG. PC 1200-26/320, PC2000-26/480, PC2500-26/520 three-size fan blades have the best shoulder angles of 13°, 18°, 20°, when the shoulder angle exceeds 25 °, the film The heat exchange efficiency of the fan has a significant downward trend. Therefore, considering the different sizes of radiators, the upper oil passage shoulder angle ^ is preferably 13 ο ~ 20 ° °.
[0033] 分别针对 PC1200-26/320 、 PC2000-26/480, PC2500-26/520 型片扇单侧斜肩和双侧 斜肩形式进行了仿真试验, 如图 13a和图 13b所示, 结果见图 14、 图 15、 图 16, 由结果可 见双侧斜肩效果优于单斜肩。  [0033] Simulation tests were performed on PC1200-26/320, PC2000-26/480, PC2500-26/520 type fan single-side oblique shoulders and double-sided oblique shoulders, as shown in Figure 13a and Figure 13b. See Figure 14, Figure 15, Figure 16, from the results show that the double shoulder effect is better than the single shoulder.
[0034] 2, 双斜肩片扇油道尺寸分布从中间向两侧, 油道宽度从小到大变化研究。  [0034] 2, the size of the double oblique shoulder fan oil passage is distributed from the middle to the two sides, and the oil passage width is changed from small to large.
[0035] 理论分析表明油道尺寸变化对片扇内油流速度和分布有影响, 从而影响单片扇内变 压器冷却油换热效果, 片扇内油流速度分布较均匀的换热效果比油流速度分布不均匀的换热 效果好。 当对不同尺寸油道分布的仿真试验研究时, 设定计算单片扇结构为改造角度 20°、 双侧削肩且油道按照中间窄两边宽分布。 从中间向两侧的油道宽度从大到小变化时, 简称大 小型; 油道宽度均匀分布时, 简称均匀型; 从中间向两侧的油道宽度从小到大变化时, 简称 小大型, 可得出小大型散热效果最好的结论。 本专利认为从片扇中间向两侧油道宽度从小到 大排列时, 片扇的换热效果会变好。 例如 PC1200-26/320 型片扇油道宽度从中间向外侧为 40mm、 50mm, PC2000-26/480 型片扇油道宽度从中间向外侧为 40mm、 45mm、 50mm, PC2500-26/520 型片扇油道宽度从中间向外侧为 40mm、 43mm, 46mm, 49mm, 采取大小 型、 均勾型、 小大型三种方式时, 散热效果图 17、 图 18、 图 19所示。 [0035] Theoretical analysis shows that the change of oil passage size has an effect on the oil flow velocity and distribution in the fan, which affects the heat transfer effect of the cooling oil in the single-chip fan. The oil flow velocity distribution in the fan is more uniform than the oil. The heat transfer effect of uneven flow velocity distribution is good. When simulating the simulation of the oil channel distribution of different sizes, the calculation of the single-piece fan structure is to change the angle of 20°, the shoulders on both sides and the oil passages are distributed according to the narrow sides of the middle. When the width of the oil passage from the middle to the sides changes from large to small, it is referred to as the size type; when the oil passage width is evenly distributed, it is referred to as uniform type; when the width of the oil passage from the middle to the sides changes from small to large, it is referred to as small and large. It can be concluded that the small and large heat dissipation effect is the best. This patent considers that the heat transfer effect of the fan will be better when the width of the oil passage from the middle to the side of the fan is from small to large. For example, PC1200-26/320 type fan fan oil passage width is 40mm, 50mm from the middle to the outside, PC2000-26/480 type fan fan oil passage width is 40mm, 45mm, 50mm from the middle to the outside, PC2500-26/520 type The width of the fan passage is 40mm, 43mm, 46mm, and 49mm from the center to the outside. When the size is large, the hook type, and the small size are used, the heat dissipation effect is shown in Figure 17, Figure 18, and Figure 19.
[0036] 3、 结论 [0036] 3. Conclusion
当普通变压器片扇采取优化设计后, 即采取双斜肩式并且片扇油道尺寸分布从中间向两 侧, 油道宽度从小到大变化时, 变压器片片扇的换热效率能显著提高。  When the ordinary transformer fan adopts the optimized design, that is, the double oblique shoulder type and the fan fan oil passage size distribution from the middle to the two sides, the oil passage width changes from small to large, the heat exchange efficiency of the transformer piece fan can be significantly improved.
替换页 (细则第 26条) Replacement page (Article 26)

Claims

权 利 要 求 书 Claim
1. 一种斜肩式变压器片式散热器, 其特征在于双斜肩式变压器片式散热器单元盒相互 平行安装, 上集油管和下集油管分别与双斜肩式变压器片式散热器单元盒连接, 该上集油管 与水平的夹角 为 10°~20°; 所述的双斜肩式变压器片式散热器单元盒的结构是: 主体有上 集油管进出口、 下集油管出口, 主体内部有油道, 该油道中部为高点、 且向两边的斜肩角度 θ % 13ο~20ο1. A slanting shoulder type transformer chip radiator, characterized in that a double oblique shoulder type transformer chip radiator unit box is installed in parallel with each other, an upper oil collecting pipe and a lower oil collecting pipe respectively and a double oblique shoulder type transformer chip radiator unit The box is connected, the angle between the upper oil collecting pipe and the horizontal is 10°~20°; the structure of the double oblique shoulder type transformer chip radiator unit box is: the main body has an upper oil collecting pipe inlet and a lower oil collecting pipe outlet, There is an oil passage inside the main body, and the middle portion of the oil passage is a high point, and the oblique shoulder angle θ % 13 ο ~ 20 ο on both sides.
2. 如权利要求 1 所述的斜肩式变压器片式散热器, 其特征在于: 双斜肩式变压器片式 散热器单元盒的油道宽度从中间向两侧按等差数列逐渐增加, 公差 rf=3mm~10mm2. The slanting shoulder type transformer chip heat sink according to claim 1, wherein: the oil passage width of the double slanting shoulder type transformer type radiator unit box is gradually increased from the middle to the both sides by an arithmetic progression, tolerance Rf=3mm~10m m .
替换页 (细则第 26条) Replacement page (Article 26)
PCT/CN2012/086372 2012-07-27 2012-12-11 Oblique shoulder type plate radiator for transformer WO2014015620A1 (en)

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