WO2011050616A1 - Overhead cooling device - Google Patents
Overhead cooling device Download PDFInfo
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- WO2011050616A1 WO2011050616A1 PCT/CN2010/074061 CN2010074061W WO2011050616A1 WO 2011050616 A1 WO2011050616 A1 WO 2011050616A1 CN 2010074061 W CN2010074061 W CN 2010074061W WO 2011050616 A1 WO2011050616 A1 WO 2011050616A1
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- cooling device
- air filter
- radiator
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- end walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0072—Means for cooling only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof
Definitions
- the invention relates to an overhead type cooling device for an electric motor train traction transformer and a converter cooling system, and belongs to the technical field of heat exchange. Background technique
- the Chinese railway has a speed of 200 km to 350 km of power-distributed electric EMUs.
- the main transformer cooling device and the main converter cooling device are all arranged in a down-hook arrangement, that is, the transformer cooling device and the converter cooling device are two independent.
- the cooling modules are assembled with the traction transformer and the traction converter respectively, and are integrated and then hoisted in the equipment compartment under the EMU floor.
- the fan in the cooling unit draws the air on the side of the equipment compartment at the bottom of the EMU floor to the air side of the radiator, and exchanges heat with the high-temperature transformer oil or the converter cooling water inside the radiator.
- This kind of cooling device is arranged under the floor of the car.
- the object of the present invention is to overcome the deficiencies in the prior art, and provide a top-mounted cooling device for a highly integrated electric power train with strong heat exchange capability, small daily maintenance workload, compact structure and easy installation. Solve the current dirty problems of high-speed electric EMU cooling devices, prolong the cleaning cycle, reduce maintenance workload, and ultimately reduce transportation costs and improve operational efficiency.
- the structure of the overhead cooling device for the power-distributed electric power train is: the front and rear end walls are arranged along the longitudinal direction of the train, and the left and right side walls are arranged along the transverse direction of the train, and the ridge-shaped bottom plate and the top cover respectively and the front and rear end walls and left and right
- the side walls are connected to form an independent cooling chamber.
- a fan unit is arranged in the middle part of the top cover of the cooling chamber.
- left and right radiators are arranged, and a filter is arranged on the outer side of each radiator.
- a drawer type dust chamber is provided in the bottom space of the radiator and the filter.
- a thermal fluid expansion tank, a radiator heat fluid inlet and outlet pipe, and the like are disposed on the front and rear end walls of the cooling chamber.
- a communication pipe connected to the expansion tank is provided.
- An overflow valve is arranged on the upper part of the expansion tank, and a transparent liquid level meter and a high and low level alarm are arranged on the end surface of the expansion tank.
- the above cooling device is integrally assembled as a module on the top of the EMU.
- the power-distributed electric power train uses an overhead cooling device, and the front and rear end walls are arranged along the longitudinal direction of the train, and the left and right side walls are arranged along the transverse direction of the train.
- the ridge-shaped bottom plate and the top cover are respectively connected to the front and rear end walls and the left and right side walls.
- An overflow valve is arranged on the upper part of the expansion tank, and a transparent liquid level meter and a high and low level alarm are arranged on the end surface of the expansion tank.
- the air filter uses an inertial air filter as the core component of the dustproof device, and the outer side of the inertia air filter is provided with a non-cut straight corrugated strip type primary filter, and the inertial air filter sequentially sets the inertial air filter leading element inward. Inertial air filter primary filter element, inertial air filter secondary filter element.
- the radiator hot fluid inlet and outlet pipe connection is connected to the external pipe by a quick connector.
- the wind unit drives the external ambient air to flow, and the cooling air is sucked from both sides of the train, and the cooling air absorbs the heat generated by the high temperature fluid when passing through the radiator, and then follows the fan guiding cavity, and then Flows into the environment at the top of the train.
- the overhead cooling device, the front and rear side walls, the left and right side walls, the bottom plate and the top cover form an independent cooling chamber.
- This structure is easy to install, disassemble, and maintainable; and the cooling chamber is sealed.
- the overhead cooling device described in the environment is assembled as a module on the top of the EMU, so that the radiator can be kept away from the environment that is easy to be dirty. Reduce the dirtiness of the radiator, thereby reducing the cleaning and maintenance time of the radiator, extending the operation time of the train, reducing transportation costs, and improving operational efficiency.
- the air filter uses inertial air filter as dustproof
- the core component of the inertia air filter is placed on the front side of the inertia air filter.
- the corrugated belt type coarse filter filters the bulky objects such as leaves, and then the air enters the primary filter element under the guidance of the inertial air filter leading element, and the dust particles in the air collide with the centrifugal force by one level.
- the inner wall of the filter element is vertically dropped and enters the dust collecting chamber.
- the air continues along the flow path and enters the secondary filter element for further filtration.
- This composite air filter maximizes air purification while reducing pressure loss as the air passes through the filter. This design reduces the auxiliary power consumption of the fan.
- the overhead cooling device, the air flow passage formed by the ridge-shaped bottom plate and the top cover makes the air flow smoother, and the design can also reduce the air pressure loss, and can also reduce the auxiliary power consumption of the fan.
- the overhead cooling device has a drawer type dust collecting chamber in the bottom space of the radiator and the filter, and the bottom plate adopts a ridge-shaped design.
- the drawer in the dust collecting chamber can be extracted and cleaned.
- the hot fluid inlet and outlet pipe interface of the radiator adopts a quick joint, which is convenient for installation while improving the reliability of the cooling device.
- the wind unit is composed of a front air duct, an impeller, a rear air duct, and a driving motor.
- the wind unit is composed of a front air duct, an impeller, a rear air duct, and a driving motor.
- one or two fan groups can be used per cooling unit.
- the overhead cooling device has two radiators arranged in one module, and can simultaneously cool two converters or complete cooling of one transformer. This design reduces the overall volume of the cooling unit and is compact.
- the overhead cooling unit integrates the key components of the converter cooling system or transformer cooling system with most important accessories, so that the cooling unit not only has the heat dissipation function, but also has the function of replenishing and exhausting the water system, or the oil system. Replenishing, dehumidifying, venting, and regulating the balance pressure. More features and a more compact structure.
- the components of the above-mentioned overhead cooling device can be increased or decreased as needed.
- the overhead cooling device of the present invention can replace the general hanging cooling device used in the prior art.
- the overall matching design method is adopted to achieve a reasonable matching between the performances of the components, and the degree of fouling of the cooling device is reduced under the premise of meeting the heat exchange requirements.
- This structure is more convenient to use and maintain, prolongs the maintenance cycle and reduces maintenance. Workload; can greatly reduce the operating and maintenance costs of operating units and improve economic efficiency.
- This feature provides a new technology for the use of electric MUs.
- FIG. 1 is a schematic structural view of an overhead cooling device for a power-distributed electric power train of the present invention.
- Fig. 2 is a view showing the structure of an air cleaner of an overhead cooling device for a power-distributed electric power train of the present invention.
- the ridge-shaped bottom plate 6 and the top cover 16 are respectively connected to the front and rear end walls 4 and the left and right side walls to form an independent cooling chamber, the ridge-shaped bottom plate 6 and the top cover 16
- a fan group 17 is disposed in the middle portion of the top of the cooling chamber, and left and right radiators 1 and 14 are disposed in the left and right sides of the fan unit, and the outer side of each radiator is provided with a filter 12;
- a drawer type dust collecting chamber 13 is arranged in the bottom space of the filter;
- a thermal fluid expansion tank 2, a radiator hot fluid inlet pipe 5 and 11 and a radiator heat fluid outlet pipe 3 and 10 are disposed on the front and rear end walls 4 of the cooling chamber;
- a communication pipe 15 connected to the expansion tank 2 is disposed at a highest position of the hot fluid chamber;
- the overhead cooling device is integrally mounted as a module on the top of the EMU.
- An overflow valve 8 is arranged on
- the air filter adopts an inertial air filter as a core component of the dustproof device, and the outer side of the inertia air filter is provided with a non-cut straight corrugated strip type primary filter 1 , and the inertial air filter sequentially sets the inertia inward.
- Air filter leading element 2 inertial air filter primary filter element 3, inertial air filter secondary filter element 4.
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Abstract
Description
顶置式冷却装置 Overhead cooling unit
技术领域 Technical field
本发明涉及电力动车组牵引变压器、 变流器冷却系统用顶置式冷却装 置，属于换热技术领域。 背景技术 The invention relates to an overhead type cooling device for an electric motor train traction transformer and a converter cooling system, and belongs to the technical field of heat exchange. Background technique
目前， 中国铁路时速在 200公里〜 350公里动力分散式电力动车组， 主 变压器冷却装置和主变流器冷却装置全部采用下挂式布置， 即变压器冷却 装置和变流器冷却装置作为两个独立的冷却模块， 分别与牵引变压器和牵 引变流器组装， 集成后吊装在动车组地板之下的设备仓内。 冷却系统工作 时， 冷却装置中的风机把动车组地板底部设备舱侧面的空气吸入到散热器 空气侧， 在散热器内部与高温变压器油或变流器冷却水进行热交换。 这种 冷却装置由于布置在车厢地板之下， 当列车高速运行时， 带有大量灰尘和 微粒的冷却空气进入散热器中， 这些灰尘和微粒极易沉积在散热器空气侧 翅片上， 堵塞翅片中的空气通道， 造成散热器传热能力大幅度下降， 空气 侧压力损失大幅度增加， 其最终结果是影响列车主变压器和主变流器冷却 系统的正常工作， 增加列车的辅助功率消耗， 加大维护维修工作量。 发明内容 At present, the Chinese railway has a speed of 200 km to 350 km of power-distributed electric EMUs. The main transformer cooling device and the main converter cooling device are all arranged in a down-hook arrangement, that is, the transformer cooling device and the converter cooling device are two independent. The cooling modules are assembled with the traction transformer and the traction converter respectively, and are integrated and then hoisted in the equipment compartment under the EMU floor. When the cooling system is working, the fan in the cooling unit draws the air on the side of the equipment compartment at the bottom of the EMU floor to the air side of the radiator, and exchanges heat with the high-temperature transformer oil or the converter cooling water inside the radiator. This kind of cooling device is arranged under the floor of the car. When the train runs at high speed, the cooling air with a lot of dust and particles enters the radiator. These dusts and particles are easily deposited on the air side fins of the radiator, blocking the fins. In the air passage, the heat transfer capacity of the radiator is greatly reduced, and the air side pressure loss is greatly increased. The final result is to affect the normal operation of the train main transformer and the main converter cooling system, and increase the auxiliary power consumption of the train. Great maintenance and repair workload. Summary of the invention
本发明的目的在于克服现有技术中的不足之处， 为铁路运输提供一种 换热能力强、 日常维护工作量小、 结构紧凑、 便于安装的高度集成的电力 动车组用顶置式冷却装置， 解决目前高速电力动车组冷却装置的污脏问题， 延长清洗周期， 降低维护工作量， 最终降低运输成本， 提高运营效益。 The object of the present invention is to overcome the deficiencies in the prior art, and provide a top-mounted cooling device for a highly integrated electric power train with strong heat exchange capability, small daily maintenance workload, compact structure and easy installation. Solve the current dirty problems of high-speed electric EMU cooling devices, prolong the cleaning cycle, reduce maintenance workload, and ultimately reduce transportation costs and improve operational efficiency.
这种动力分散式电力动车组用顶置式冷却装置的结构是： 沿着列车纵 向设置前后端墙， 沿着列车横向设置左右侧墙， 呈屋脊状的底板和顶盖分 别与前后端墙和左右侧墙相连， 构成独立的冷却室。 在冷却室顶盖中间部 位， 设置风机组， 在风机组的左右两侧空间， 设置左右散热器， 每个散热 器的外侧面设置过滤器。 在散热器和过滤器底部空间设置抽屉式集尘室。 在冷却室前后端墙上布置热流体膨胀箱、 散热器热流体进出管等。 在散热 器热流体腔最高位置处， 设置与膨胀箱相连的连通管。 在膨胀箱上部设置 溢流阀， 在膨胀箱端面设置透明液位仪和高低液位报警器。 上述冷却装置 作为一个模块整体装配在动车组车顶部。 The structure of the overhead cooling device for the power-distributed electric power train is: the front and rear end walls are arranged along the longitudinal direction of the train, and the left and right side walls are arranged along the transverse direction of the train, and the ridge-shaped bottom plate and the top cover respectively and the front and rear end walls and left and right The side walls are connected to form an independent cooling chamber. In the middle part of the top cover of the cooling chamber, a fan unit is arranged. In the space on the left and right sides of the fan unit, left and right radiators are arranged, and a filter is arranged on the outer side of each radiator. A drawer type dust chamber is provided in the bottom space of the radiator and the filter. A thermal fluid expansion tank, a radiator heat fluid inlet and outlet pipe, and the like are disposed on the front and rear end walls of the cooling chamber. At the highest position of the heat transfer chamber of the radiator, a communication pipe connected to the expansion tank is provided. An overflow valve is arranged on the upper part of the expansion tank, and a transparent liquid level meter and a high and low level alarm are arranged on the end surface of the expansion tank. The above cooling device is integrally assembled as a module on the top of the EMU.
这种动力分散式电力动车组用顶置式冷却装置， 沿着列车纵向设置前后 端墙， 沿着列车横向设置左右侧墙， 呈屋脊状的底板和顶盖分别与前后端 墙和左右侧墙相连， 构成独立冷却室； 所述的屋脊状的底板和顶盖配合组 成空气流道； 该冷却室顶盖中间部位设置风机组， 在风机组的左右两侧空 间， 设置左右散热器， 每个散热器的外侧面设置过滤器； 在散热器和过滤 器底部空间设置抽屉式集尘室； 在冷却室前后端墙上设置热流体膨胀箱、 散热器热流体进出管； 在散热器热流体腔最高位置处设置与膨胀箱相连的 连通管； 这种顶置式冷却装置作为一个模块整体装配在动车组车顶部。 在 膨胀箱上部设置溢流阀， 在膨胀箱端面设置透明液位仪和高低液位报警器。 空气滤清器采用惯性空气滤清器作为防尘装置的核心部件， 惯性空气过滤 器外侧面设置无切口平直波紋带式粗滤器， 惯性空气过滤器依次向内设置 惯性空气过滤器前导元件、 惯性空气过滤器一级过滤元件、 惯性空气过滤 器二级过滤元件。 散热器热流体进出管接口采用快速接头与外部管路连接。 The power-distributed electric power train uses an overhead cooling device, and the front and rear end walls are arranged along the longitudinal direction of the train, and the left and right side walls are arranged along the transverse direction of the train. The ridge-shaped bottom plate and the top cover are respectively connected to the front and rear end walls and the left and right side walls. Forming an independent cooling chamber; the ridge-shaped bottom plate and the top cover cooperate to form an air flow passage; a fan group is disposed at an intermediate portion of the cooling chamber top cover, and left and right sides of the fan unit are disposed, and left and right heat sinks are disposed, each of which dissipates heat a filter is arranged on the outer side of the device; a drawer type dust collecting chamber is arranged in the bottom space of the radiator and the filter; a hot fluid expansion tank and a radiator hot fluid inlet and outlet pipe are arranged on the front and rear end walls of the cooling chamber; A communication pipe connected to the expansion tank is disposed at the place; the overhead cooling device is integrally assembled as a module on the top of the EMU. An overflow valve is arranged on the upper part of the expansion tank, and a transparent liquid level meter and a high and low level alarm are arranged on the end surface of the expansion tank. The air filter uses an inertial air filter as the core component of the dustproof device, and the outer side of the inertia air filter is provided with a non-cut straight corrugated strip type primary filter, and the inertial air filter sequentially sets the inertial air filter leading element inward. Inertial air filter primary filter element, inertial air filter secondary filter element. The radiator hot fluid inlet and outlet pipe connection is connected to the external pipe by a quick connector.
所述的顶置式冷却装置工作时， 风机组带动外部环境空气流动， 从列 车两侧面吸进冷却空气， 冷却空气经过散热器时吸收高温流体带来的热量， 然后沿着风机导流腔， 再流向列车顶部的环境当中。 When the overhead cooling device is in operation, the wind unit drives the external ambient air to flow, and the cooling air is sucked from both sides of the train, and the cooling air absorbs the heat generated by the high temperature fluid when passing through the radiator, and then follows the fan guiding cavity, and then Flows into the environment at the top of the train.
所述的顶置式冷却装置， 前后端墙、 左右侧墙、 底板和顶盖形成独立 的冷却室。 此种结构便于安装、 拆卸， 可维护性好； 且冷却室密封， 环境 所述的顶置式冷却装置， 作为一个模块整体装配在动车组车顶部， 使 散热器远离易于污脏的环境， 可有效降低散热器的污脏程度， 从而减少散 热器的清洗维护时间， 延长列车的运营时间， 降低运输成本， 提高运营效 The overhead cooling device, the front and rear side walls, the left and right side walls, the bottom plate and the top cover form an independent cooling chamber. This structure is easy to install, disassemble, and maintainable; and the cooling chamber is sealed. The overhead cooling device described in the environment is assembled as a module on the top of the EMU, so that the radiator can be kept away from the environment that is easy to be dirty. Reduce the dirtiness of the radiator, thereby reducing the cleaning and maintenance time of the radiator, extending the operation time of the train, reducing transportation costs, and improving operational efficiency.
.、 /. 所述的顶置式冷却装置， 空气滤清器采用惯性空气滤清器作为防尘装 置的核心部件， 惯性空气过滤器前侧面， 设置无切口平直波紋带式粗滤器。 波紋带式粗滤器过滤树叶等体积较大的杂物， 然后， 空气在惯性空气过滤 器前导元件的引导下， 进入一级过滤元件， 这部分空气中的灰尘微粒在离 心力的作用下碰撞一级过滤元件内壁后垂直落下， 进入集尘室内。 空气沿 流道继续前行， 进入二级过滤元件进一步过滤。 此复合型空气滤清器能使 空气得到最大程度的净化， 同时空气通过滤清器时压力损失较小。 这种设 计可以降低风机的辅助功率消耗。 .. /. The overhead cooling device, the air filter uses inertial air filter as dustproof The core component of the inertia air filter is placed on the front side of the inertia air filter. The corrugated belt type coarse filter filters the bulky objects such as leaves, and then the air enters the primary filter element under the guidance of the inertial air filter leading element, and the dust particles in the air collide with the centrifugal force by one level. The inner wall of the filter element is vertically dropped and enters the dust collecting chamber. The air continues along the flow path and enters the secondary filter element for further filtration. This composite air filter maximizes air purification while reducing pressure loss as the air passes through the filter. This design reduces the auxiliary power consumption of the fan.
所述的顶置式冷却装置， 屋脊状的底板和顶盖组成的空气流道， 使空 气流动更顺畅， 此种设计也可以降低空气压力损失， 同样可以降低风机的 辅助功率消耗。 The overhead cooling device, the air flow passage formed by the ridge-shaped bottom plate and the top cover makes the air flow smoother, and the design can also reduce the air pressure loss, and can also reduce the auxiliary power consumption of the fan.
所述的顶置式冷却装置， 在散热器和过滤器底部空间设置抽屉式集尘 室， 且底板采用屋脊状的设计， 当列车运行一定的时间后， 可抽出集尘室 内的抽屉清洁， 同时可用水沿与冷却空气流向相反的方向冲洗冷却室和散 热器， 这样， 很容易清除粘附在散热器上的灰尘， 冷却室内的污脏可沿着 屋脊状的底板流出。 The overhead cooling device has a drawer type dust collecting chamber in the bottom space of the radiator and the filter, and the bottom plate adopts a ridge-shaped design. When the train runs for a certain period of time, the drawer in the dust collecting chamber can be extracted and cleaned. The water flushes the cooling chamber and the radiator in a direction opposite to the flow of the cooling air, so that it is easy to remove the dust adhering to the radiator, and the dirt in the cooling chamber can flow out along the ridge-shaped bottom plate.
所述的顶置式冷却装置， 散热器热流体进出管接口采用快速接头， 在 提高冷却装置可靠性的同时， 方便安装。 In the overhead cooling device, the hot fluid inlet and outlet pipe interface of the radiator adopts a quick joint, which is convenient for installation while improving the reliability of the cooling device.
所述的顶置式冷却装置， 风机组由前导风筒、 叶轮、 后导风筒、 驱动 电机组成。 根据具体散热要求， 每个冷却装置可使用一个或两个风机组。 In the overhead cooling device, the wind unit is composed of a front air duct, an impeller, a rear air duct, and a driving motor. Depending on the specific heat dissipation requirements, one or two fan groups can be used per cooling unit.
所述的顶置式冷却装置将两个散热器设置在一个模块内， 可以同时完 成对两台变流器的冷却， 或完成对一台变压器的冷却。 此设计缩小了冷却 装置的总体积， 结构紧凑。 The overhead cooling device has two radiators arranged in one module, and can simultaneously cool two converters or complete cooling of one transformer. This design reduces the overall volume of the cooling unit and is compact.
顶置式冷却装置将变流器冷却系统或变压器冷却系统的关键部件和绝 大多数重要配件集成在一起， 使冷却装置不但具有散热功能， 还具有为水 系统补水、 排气作用， 或为油系统补油、 除湿、 排气、 调节平衡压力的作 用。 功能更多， 结构更紧凑。 The overhead cooling unit integrates the key components of the converter cooling system or transformer cooling system with most important accessories, so that the cooling unit not only has the heat dissipation function, but also has the function of replenishing and exhausting the water system, or the oil system. Replenishing, dehumidifying, venting, and regulating the balance pressure. More features and a more compact structure.
上述顶置式冷却装置各组成部件可根据需要增减。 The components of the above-mentioned overhead cooling device can be increased or decreased as needed.
本发明的顶置式冷却装置可取代已有技术中使用的一般下挂式冷却装 置， 采用整体配套设计方法， 实现各部件性能之间合理匹配， 在满足换热 要求的前提下， 降低冷却装置的污脏程度， 这种结构更便于使用维护， 延 长了维护周期， 降低了维护工作量； 能极大地降低运营单位的使用维护成 本， 提高经济效益。 这一特点， 为电力动车组的运用提供了一种新的技术。 附图说明 The overhead cooling device of the present invention can replace the general hanging cooling device used in the prior art. The overall matching design method is adopted to achieve a reasonable matching between the performances of the components, and the degree of fouling of the cooling device is reduced under the premise of meeting the heat exchange requirements. This structure is more convenient to use and maintain, prolongs the maintenance cycle and reduces maintenance. Workload; can greatly reduce the operating and maintenance costs of operating units and improve economic efficiency. This feature provides a new technology for the use of electric MUs. DRAWINGS
图 1是本发明动力分散式电力动车组用顶置式冷却装置结构示意图。 图 2 是本发明动力分散式电力动车组用顶置式冷却装置空气滤清器结 构示意图。 1 is a schematic structural view of an overhead cooling device for a power-distributed electric power train of the present invention. Fig. 2 is a view showing the structure of an air cleaner of an overhead cooling device for a power-distributed electric power train of the present invention.
具体实施方式 detailed description
现结合附图对本发明作进一步说明：请参照图 1， 呈屋脊状的底板 6和 顶盖 16分别与前后端墙 4和左右侧墙相连构成独立冷却室， 屋脊状的底板 6和顶盖 16配合组成空气流道， 该冷却室顶盖中间部位设置风机组 17， 在 风机组的左右两侧空间设置左右散热器 1和 14， 每个散热器的外侧面设置 过滤器 12; 在散热器和过滤器底部空间设置抽屉式集尘室 13; 在冷却室前 后端墙 4上设置热流体膨胀箱 2、 散热器热流体进口管 5和 11、 散热器热 流体出口管 3和 10; 在散热器热流体腔最高位置处设置与膨胀箱 2相连的 连通管 15; 这种顶置式冷却装置作为一个模块整体装配在动车组车顶部。 在膨胀箱 2上部设置溢流阀 8、在膨胀箱端面设置透明液位仪 7和高低液位 报警器 9。 The present invention will now be further described with reference to the accompanying drawings. Referring to Figure 1, the ridge-shaped bottom plate 6 and the top cover 16 are respectively connected to the front and rear end walls 4 and the left and right side walls to form an independent cooling chamber, the ridge-shaped bottom plate 6 and the top cover 16 In combination with the air flow passage, a fan group 17 is disposed in the middle portion of the top of the cooling chamber, and left and right radiators 1 and 14 are disposed in the left and right sides of the fan unit, and the outer side of each radiator is provided with a filter 12; a drawer type dust collecting chamber 13 is arranged in the bottom space of the filter; a thermal fluid expansion tank 2, a radiator hot fluid inlet pipe 5 and 11 and a radiator heat fluid outlet pipe 3 and 10 are disposed on the front and rear end walls 4 of the cooling chamber; A communication pipe 15 connected to the expansion tank 2 is disposed at a highest position of the hot fluid chamber; the overhead cooling device is integrally mounted as a module on the top of the EMU. An overflow valve 8 is arranged on the upper part of the expansion tank 2, and a transparent liquid level gauge 7 and a high and low level alarm 9 are arranged on the end surface of the expansion tank.
请参照图 2， 空气滤清器采用惯性空气滤清器作为防尘装置的核心部件， 惯 性空气过滤器外侧面设置无切口平直波紋带式粗滤器 1，惯性空气过滤器依 次向内设置惯性空气过滤器前导元件 2、 惯性空气过滤器一级过滤元件 3、 惯性空气过滤器二级过滤元件 4。 Referring to FIG. 2, the air filter adopts an inertial air filter as a core component of the dustproof device, and the outer side of the inertia air filter is provided with a non-cut straight corrugated strip type primary filter 1 , and the inertial air filter sequentially sets the inertia inward. Air filter leading element 2, inertial air filter primary filter element 3, inertial air filter secondary filter element 4.
Claims
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202477791U CN201538317U (en) | 2009-10-31 | 2009-10-31 | overhead cooling unit |
| CN200910188389.6 | 2009-10-31 | ||
| CN200920247779.1 | 2009-10-31 | ||
| CN2009101883896A CN101698410B (en) | 2009-10-31 | 2009-10-31 | Overhead cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011050616A1 true WO2011050616A1 (en) | 2011-05-05 |
Family
ID=43921290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2010/074061 Ceased WO2011050616A1 (en) | 2009-10-31 | 2010-06-18 | Overhead cooling device |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2011050616A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3059135A1 (en) * | 2015-02-17 | 2016-08-24 | Mahle International GmbH | Rail vehicle with a cooling facility |
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