WO2021104073A1 - 一种集装箱式变频撬 - Google Patents

一种集装箱式变频撬 Download PDF

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Publication number
WO2021104073A1
WO2021104073A1 PCT/CN2020/128971 CN2020128971W WO2021104073A1 WO 2021104073 A1 WO2021104073 A1 WO 2021104073A1 CN 2020128971 W CN2020128971 W CN 2020128971W WO 2021104073 A1 WO2021104073 A1 WO 2021104073A1
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WO
WIPO (PCT)
Prior art keywords
frequency conversion
unit
air duct
cold
heat dissipation
Prior art date
Application number
PCT/CN2020/128971
Other languages
English (en)
French (fr)
Inventor
孙贤洲
沈宜敏
宋承林
Original Assignee
青岛中加特电气股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 青岛中加特电气股份有限公司 filed Critical 青岛中加特电气股份有限公司
Priority to US17/781,015 priority Critical patent/US20230008191A1/en
Publication of WO2021104073A1 publication Critical patent/WO2021104073A1/zh

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/025—Constructional details relating to cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H05K7/1432—Housings specially adapted for power drive units or power converters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20927—Liquid coolant without phase change

Definitions

  • the invention relates to the technical field of drilling equipment for petroleum, coalbed methane and shale gas, in particular to a container type frequency conversion skid.
  • the frequency converter currently faces the following main problems: ordinary frequency converters cannot be directly used in oil field workplaces. Even if the frequency converter with protective enclosure is made, there are still large dimensions, heavy weight, and overall size. The power density of the machine is small, and only one frequency converter can drive one fracturing pump motor.
  • a containerized frequency conversion skid which integrates the variable voltage power supply, frequency conversion unit, wiring unit and other components into an integrated structure to reduce the size of the whole machine and increase the power of the whole machine.
  • the transformer unit and the inverter unit multiple independent frequency conversion circuits can be output at the same time, so as to provide power and speed regulation for multiple independent fracturing pump motors at the same time, and improve the work efficiency.
  • the integrated one-piece structure and high power output are bound to increase the heat generated by the whole machine. If the internal electrical components cannot be radiated and cooled in time, the normal operation of the electrical components will be affected, and the operating efficiency and reliability of the whole machine will be affected.
  • the present invention proposes a modular variable frequency skid, which uses a first cooling unit to dissipate heat and reduce temperature for the transformer unit, and use a second cooling unit to dissipate heat and reduce the temperature of the variable frequency unit, so as to prevent the voltage unit and the variable frequency unit from being too high in temperature. Normal operation improves the operating efficiency and reliability of the whole machine.
  • a container type frequency conversion skid comprising a box body, an accommodating space is formed inside the box body, and a wiring unit, a transformer unit, and a frequency conversion unit are arranged in the accommodating space.
  • the frequency conversion skid further includes: a first cooling unit , Which is arranged in the containing space, includes an air duct and a first heat dissipation fan arranged in the air duct, the transformer unit is located in the air duct, and air flows through the air under the action of the first heat dissipation fan The air duct is used to reduce the temperature of the transformation unit;
  • the second cooling unit which is arranged in the accommodation space, includes a conduction cold assembly and a second heat dissipation fan, the conduction cold assembly is close to the frequency conversion unit, and the conduction The cold component and the second heat dissipation fan cool the frequency conversion unit.
  • the air duct includes a connected vertical air duct and a horizontal air duct, the horizontal air duct is located above the vertical air duct, the pressure transformation unit is located in the vertical air duct, and the first A heat dissipation fan is located in the horizontal air duct; the first cooling unit includes an air inlet and an air outlet communicating with the air duct, the air inlet communicating with the vertical air duct, and the air outlet communicating with the air duct.
  • the horizontal air duct is connected.
  • the air inlet is located at a lower position on the rear side of the box body, and the air outlet is located at a position higher on the front side of the box body.
  • rain-proof shutters are provided at the air inlet and the air outlet.
  • the cold conduction assembly includes a refrigerant accommodating box and a cold conduction plate assembly, the refrigerant accommodating box and the cold conduction plate assembly are communicated with each other through a first pipeline, and the refrigerant circulates in the cold conduction assembly ,
  • the cold conducting plate assembly is close to the frequency conversion unit, and the refrigerant containing box is arranged on the second heat dissipation fan.
  • a discharge port is provided on the first pipeline.
  • the cold conducting plate assembly includes a plurality of cold conducting plate subunits arranged side by side, and each of the cold conducting plate subunits includes a plurality of cold conducting plates arranged side by side, which are adjacent to each other in the same cold conducting plate subunit.
  • the two cold conducting plates are connected through a second pipeline.
  • the cold conducting plate is detachably connected to the frequency conversion unit.
  • the refrigerant accommodating box and the second heat dissipation fan are located at the end side of the accommodating space, and the cold conducting plate assembly is located at the rear side of the accommodating space.
  • a heat dissipation protection net is provided at a position of the box body close to the second heat dissipation fan, the refrigerant containing box, and the cold conducting plate assembly.
  • the first cooling unit cools the transformer unit through air-cooling
  • the second cooling unit cools the inverter unit through a combination of air-cooling and water-cooling, making full use of the internal space of the container, and realizing control based on an integrated structure.
  • the temperature of the transformer unit and the inverter unit is cooled in time to prevent the voltage unit and the inverter unit from being unable to operate normally due to excessive temperature, and improve the operating efficiency and reliability of the whole machine.
  • Figure 1 is a front view structural schematic diagram of an embodiment of a container-type frequency conversion skid according to the present invention
  • FIG. 2 is a schematic diagram of the rear view structure of an embodiment of the container-type frequency conversion skid of the present invention
  • Figure 3 is a top view of an embodiment of the container-type frequency conversion skid of the present invention (the upper cover is omitted);
  • Figure 4 is a cross-sectional view along the line A-A in Figure 3;
  • FIG. 5 is a schematic structural diagram of a first cooling unit in an embodiment of a container-type frequency conversion skid according to the present invention
  • FIG. 6 is a schematic structural diagram of a second cooling unit in an embodiment of a container-type frequency conversion skid according to the present invention.
  • FIG. 7 is a schematic diagram of the structure of FIG. 6 viewed from the Q direction.
  • 100-first cooling unit 110-air duct, 111-vertical air duct, 112-horizontal air duct, 120-air inlet, 130-air outlet, 140-first cooling fan, 150-connecting plate, 160-lifting ring ;
  • 200-second cooling unit 210-conducting cold component, 211-refrigerant container, 212-conducting cold plate assembly, 2121-conducting cold plate, 2122-conducting cold plate subunit, 213-first pipeline, 2131-inlet Pipeline, 2132-outlet pipeline, 2131-discharge port, 214-second pipeline, 220-second cooling fan, 230-hinge;
  • 600-box 600-box, 610-accommodating space, 620-rainproof blinds, 630-heat dissipation protection net.
  • the terms “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer”, etc. indicate directions or The term of positional relationship is based on the direction or positional relationship shown in the drawings, which is only for ease of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood To limit the present invention.
  • the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.
  • the present invention discloses a container type frequency conversion skid. With reference to Figures 1 to 3, it includes a box 600.
  • the box 600 is preferably a rectangular box with an accommodation space 610 formed therein.
  • the accommodation space 610 is equipped with a wiring unit 300 and a transformer. Compression unit 400, and frequency conversion unit 500.
  • the frequency conversion skid also includes a first cooling unit 100 and a second cooling unit 200 arranged in the containing space 610.
  • the first cooling unit 100 includes an air duct 110 and a first heat dissipation fan 140 arranged in the air duct 110.
  • the transformation unit 400 is located in the air duct 110.
  • the pressure unit 400 cools down.
  • the second cooling unit 200 includes a conduction cooling assembly 210 and a second heat dissipation fan 220, the conduction cooling assembly 210 abuts the frequency conversion unit 500, and the conduction cooling assembly 210 and the second heat dissipation fan 220 cool the frequency conversion unit 500.
  • the first cooling unit 100 cools the transformer unit 400 through air cooling
  • the second cooling unit 200 cools the inverter unit 500 through a combination of air cooling and water cooling, making full use of the internal space of the container to meet the requirements of an integrated structure.
  • realizing the timely cooling of the transformer unit 400 and the inverter unit 500 avoiding the voltage unit 400 and the inverter unit 500 from being unable to operate normally due to excessive temperature, and improving the operating efficiency and reliability of the whole machine.
  • the containing space 610 is provided with a partition plate (not marked) to divide the containing space 610 into mutually independent sub-spaces.
  • the wiring unit 300, the transformer unit 400, the frequency conversion unit 500, and the second cooling unit 200 are respectively arranged in each The transformer unit 400 and the first cooling unit 100 share a subspace.
  • the box 600 is provided with a door (not marked) corresponding to the subspace. By opening the door, you can correspond to For maintenance and inspection of the unit composition, the convenience of use is improved.
  • the compartmentalized structural design of the accommodating space 610 also facilitates modular installation and improves assembly efficiency.
  • the air duct 110 includes a vertical air duct 111 and a horizontal air duct 112 that are connected to each other, the horizontal air duct 112 is located above the vertical air duct 111, and the transformer unit 400 It is located in the vertical air duct 111, and the first heat dissipation fan 140 is located in the horizontal air duct 112.
  • the first cooling unit 100 further includes an air inlet 120 and an air outlet 130 communicating with the air duct 110, the air inlet 120 is in communication with the vertical air duct 111, and the air outlet 130 is in communication with the horizontal air duct 112.
  • the air inlet 120 is located at a lower position on the rear side of the box 600, and the air outlet 130 is located at a higher position on the front side of the box 600.
  • the air inlet 120 and the air outlet 130 are located on both sides of the transformer unit 400, and when the air flows from the air inlet 120 to the air outlet 130, it will flow through both sides of the transformer unit 400 to oppose the two sides of the transformer unit 400.
  • the temperature is cooled by air cooling at the same time, so that the temperature of the transformer unit 400 is uniformly cooled, and the cooling efficiency is improved.
  • the air inlet 120 and the air outlet 130 are provided with rain-proof louvers 620 to prevent foreign matter from entering the containing space 610 through the air inlet 120 and the air outlet 130 to affect the internal components.
  • the transformer unit 400 is fixedly installed to the bottom of the box 600 through a bracket 410, and the lower end of the vertical air duct 111 is fixedly connected to the bracket 410 through a connecting plate 150, and there is a certain distance between adjacent connecting plates 150 to avoid influence
  • the air flows into the vertical air duct 111 from the air inlet 120.
  • the upper end of the vertical air duct 111 is fixedly connected with the horizontal air duct 112, and the upper side of the horizontal air duct 112 is fixedly connected with the top of the box 600, so that the fixed installation of the air duct 110 in the containing space 610 is realized.
  • the vertical air duct 111 is sleeved on the periphery of the transformer unit 400 from top to bottom, and the lower end of the vertical air duct 111 is fixedly connected with the bracket 410 through the connecting plate 150 to realize the fixation of the vertical air duct 111; Then, the upper side of the horizontal air duct 112 is fixedly installed to the top of the box 600 through the lifting ring 160 to realize the fixing of the horizontal air duct 112; finally, the connection position of the vertical air duct 111 and the horizontal air duct 112 is tightened by screws. It is solid to realize the fixed installation of the whole air duct 110.
  • the cold conducting assembly 210 includes a refrigerant containing box 211 and a cold conducting plate assembly 212.
  • the refrigerant containing box 211 and the conducting cold plate assembly 212 are in communication with each other through a first pipeline 213.
  • the refrigerant is circulated, and the cold conducting plate assembly 212 is close to the inverter unit 500.
  • the first pipeline 213 includes an inlet pipeline 2131 and an outlet pipeline 2132.
  • the inlet and outlet are relative to the cold conducting plate assembly 212, that is, the refrigerant containing box 211 and the cold conducting plate assembly 212 pass between The inlet pipe 2131 and the outlet pipe 2132 are connected to realize the circulation of refrigerant.
  • the refrigerant in the refrigerant accommodating box 211 flows into the cold conducting plate assembly 212 through the inlet pipe 2131.
  • the lower temperature refrigerant is absorbed and taken away by the inverter unit 500 for emission.
  • the output heat cools the temperature of the inverter unit 500, and then, the refrigerant after heat exchange flows back into the refrigerant accommodating tank 211 through the outlet pipe 2132.
  • the refrigerant with a higher temperature turns into a refrigerant with a lower temperature, and then enters the next heat exchange cycle.
  • the refrigerant accommodating box 211 is arranged on the second heat dissipation fan 220 to make full use of the space.
  • the refrigerant accommodating box 211 and the second heat dissipation fan 220 are located at the end side of the accommodating space 610, and the cold conducting plate assembly 212 is located at the rear side of the accommodating space 610.
  • the cold conducting plate assembly 212 and the frequency conversion unit 500 it is convenient for the cold conducting plate assembly 212 and the frequency conversion unit 500 to abut, improving the frequency conversion.
  • the heat dissipation efficiency of the unit 500 on the other hand, the second heat dissipation fan 220 at the end side facilitates air-cooling and heat dissipation of the frequency conversion unit 500, so that the heat in the subspace of the frequency conversion unit 500 can be discharged through the second heat dissipation fan 220 in time.
  • the box 600 is provided with a heat dissipation protection net 630 at a position close to the second heat dissipation fan 220, the refrigerant containing box 211, and the cold conducting plate assembly 212, which plays a protective role on the one hand, and also on the other hand.
  • a heat dissipation protection net 630 at a position close to the second heat dissipation fan 220, the refrigerant containing box 211, and the cold conducting plate assembly 212, which plays a protective role on the one hand, and also on the other hand.
  • the cold conduction plate assembly 212 includes a plurality of cold conduction plate subunits 2122 arranged side by side, and each cold conduction plate subunit 2122 includes a plurality of cold conduction plates 2121 arranged side by side. Two adjacent cold conduction plates are located in the same cold conduction plate subunit 2122.
  • the cold plate 2121 communicates with the second pipe 214.
  • two groups of cold conducting plate subunits 2122 are designed according to the size of the frequency conversion unit 500.
  • the two groups of conducting cold plate subunits 2122 are arranged side by side in the horizontal direction.
  • the two cold conductive plates 2121 are communicated with each other through the second pipeline 214.
  • the refrigerant in the inlet pipe 2131 will respectively flow into each group of cold conducting plate subunits 2122, and then the refrigerant merges in the outlet pipe 2132 and then flows back to the refrigerant accommodating tank 211.
  • the cold conducting plate 2121 is detachably connected to the frequency conversion unit 500.
  • the frequency conversion unit 500 includes a mounting plate 510 for installing electrical components, and the cold conducting plate 2121 and the mounting plate 510 are rotatably connected through a hinge 230.
  • the cold conducting plate 2121 can be opened like a door, which is convenient for maintenance and operation.
  • the second pipeline 214 not only connects the two adjacent cold conductive plates 2121, but also functions as a handle, which can simultaneously open the upper and lower cold conductive plates 2121 together.
  • the first pipe 213 is provided with a discharge port 2133.
  • the discharge port 2133 is provided on the inlet pipe 2131. When maintenance is required, the refrigerant is discharged from the discharge port 2133 to facilitate subsequent maintenance operations.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Inverter Devices (AREA)

Abstract

本发明公开了一种集装箱式变频撬，包括箱体，箱体的内部形成有容纳空间，容纳空间内设有接线单元、变压单元、变频单元，容纳空间内还设有第一冷却和第二冷却单元，第一冷却单元包括风道和设于风道内的第一散热风机，变压单元位于风道内，空气在第一散热风机的作用下流经风道、对变压单元进行降温，第二冷却单元包括导冷组件和第二散热风机，导冷组件与变频单元紧靠。第一冷却单元通过风冷的方式对变压单元降温，第二冷却单元通过风冷和水冷结合的方式对变频单元降温，避免电压单元和变频单元因温度过高而无法正常运行，提高整机的作业效率及可靠性。

Description

一种集装箱式变频撬 技术领域
本发明涉及石油、煤层气和页岩气钻采设备技术领域，尤其涉及一种集装箱式变频撬。
 背景技术
目前电驱动压裂泵刚刚开始发展，压裂泵电动机拖动一般都采用变频器来驱动。但是变频器作为驱动压裂泵电动机的电源，目前面临的主要问题如下：普通的变频器无法直接应用于油田工作场所，即使做了防护外壳的变频器也存在外形尺寸较大，重量重，整机功率密度小，只能实现一台变频器拖动一台压裂泵电动机。
为了解决上述技术问题，出现了集装箱式变频撬，将变压电源、变频单元、接线单元等组成部件集成为一体结构，以减小整机尺寸、提高整机功率。通过对变压单元、变频单元的改进，实现同时输出多组独立的变频回路，以同时为多台独立的压裂泵电动机提供电源和调速，提高作业效率。
本背景技术所公开的上述信息仅仅用于增加对本申请背景技术的理解，因此，其可能包括不构成本领域普通技术人员已知的现有技术。
 技术问题
集成化的一体式结构以及高功率输出，势必会带来整机产生的热量增多。如果不能够及时对内部的电气元件进行散热降温，会影响电气元件的正常运行，进而影响整机的作业效率及可靠性。
 技术解决方案
有鉴于此，本发明提出一种集装式变频撬，通过第一冷却单元为变压单元散热降温，通过第二冷却单元为变频单元散热降温，避免电压单元和变频单元因温度过高而无法正常运行，提高整机的作业效率及可靠性。
为实现上述发明目的，本发明采用下述技术方案予以实现：
一种集装箱式变频撬，包括箱体，所述箱体的内部形成有容纳空间，所述容纳空间内设有接线单元、变压单元、变频单元，所述变频撬还包括：第一冷却单元，其设于所述容纳空间内，包括风道和设于所述风道内的第一散热风机，所述变压单元位于所述风道内，空气在所述第一散热风机的作用下流经所述风道、对所述变压单元降温；第二冷却单元，其设于所述容纳空间内，包括导冷组件和第二散热风机，所述导冷组件靠近所述变频单元，所述导冷组件和所述第二散热风机对所述变频单元降温。
进一步的，所述风道包括连通的竖直风道和水平风道，所述水平风道位于所述竖直风道的上方，所述变压单元位于所述竖直风道内，所述第一散热风机位于所述水平风道内；所述第一冷却单元包括与所述风道连通的进风口和出风口，所述进风口与所述竖直风道连通，所述出风口与所述水平风道连通。
进一步的，所述进风口位于所述箱体的后侧靠下的位置，所述出风口位于所述箱体的前侧靠上的位置。
进一步的，所述进风口和所述出风口处设有防雨百叶窗。
进一步的，所述导冷组件包括制冷剂容纳箱和导冷板组件，所述制冷剂容纳箱与所述导冷板组件之间通过第一管路连通，所述导冷组件内流通制冷剂，所述导冷板组件紧靠所述变频单元，所述制冷剂容纳箱设于所述第二散热风机上。
进一步的，所述第一管路上设有排放口。
进一步的，所述导冷板组件包括多个并排设置的导冷板子单元，每个所述导冷板子单元包括多个并排设置的导冷板，处于同一个所述导冷板子单元内相邻的两个所述导冷板通过第二管路连通。
进一步的，所述导冷板与所述变频单元可拆卸连接。
进一步的，所述制冷剂容纳箱和所述第二散热风机位于所述容纳空间的端侧，所述导冷板组件位于所述容纳空间的后侧。
进一步的，所述箱体靠近所述第二散热风机、所述制冷剂容纳箱、及所述导冷板组件的位置处设有散热防护网。
 有益效果
与现有技术相比，本发明的优点和积极效果是：
第一冷却单元通过风冷的方式对变压单元降温，第二冷却单元通过风冷和水冷结合的方式对变频单元降温，充分利用集装箱的内部空间，在满足集成化的结构基础上，实现对变压单元和变频单元的及时降温，避免电压单元和变频单元因温度过高而无法正常运行，提高整机的作业效率及可靠性。
 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明集装箱式变频撬实施例的前视结构示意图；
图2为本发明集装箱式变频撬实施例的后视结构示意图；
图3为本发明集装箱式变频撬实施例的俯视图（省略上盖板）；
图4为图3中A-A向剖视图；
图5为本发明集装箱式变频撬实施例第一冷却单元的结构示意图；
图6为本发明集装箱式变频撬实施例第二冷却单元的结构示意图；
图7为图6从Q方向观察到的结构示意图。
其中，
100-第一冷却单元，110-风道，111-竖直风道，112-水平风道，120-进风口，130-出风口，140-第一散热风机，150-连接板，160-吊环；
200-第二冷却单元，210-导冷组件，211-制冷剂容纳箱，212-导冷板组件，2121-导冷板，2122-导冷板子单元，213-第一管路，2131-进管路，2132-出管路，2133-排放口，214-第二管路，220-第二散热风机，230-合页；
300-接线单元；
400-变压单元，410-支架；
500-变频单元，510-安装板；
600-箱体，610-容纳空间，620-防雨百叶窗，630-散热防护网。
 本发明的最佳实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
本发明公开一种集装箱式变频撬，参照图1至图3，包括箱体600，箱体600优选为矩形箱体，其内形成有容纳空间610，容纳空间610内安装有接线单元300、变压单元400、及变频单元500。变频撬还包括设于容纳空间610内的第一冷却单元100和第二冷却单元200。第一冷却单元100包括风道110和设于风道110内的第一散热风机140，变压单元400位于风道110内，空气在第一散热风机140的作用下流经风道110、对变压单元400进行降温。第二冷却单元200包括导冷组件210和第二散热风机220，导冷组件210与变频单元500紧靠，导冷组件210和第二散热风机220对变频单元500进行降温。第一冷却单元100通过风冷的方式对变压单元400降温，第二冷却单元200通过风冷和水冷结合的方式对变频单元500降温，充分利用集装箱的内部空间，在满足集成化的结构基础上，实现对变压单元400和变频单元500的及时降温，避免电压单元400和变频单元500因温度过高而无法正常运行，提高整机的作业效率及可靠性。
容纳空间610内设有分隔板（未标示），用以将容纳空间610分隔成相互独立的子空间，接线单元300、变压单元400、变频单元500、第二冷却单元200分别设于各自的子空间内，其中，变压单元400和第一冷却单元100共用一个子空间，箱体600上设有与子空间对应的门体（未标示），通过开启门体，即可对相对应的单元组成进行维修检查，提高了使用便利性，同时，容纳空间610分隔化的结构设计，也便于模块化安装，提高组装效率。
第一冷却单元100的结构示意图参照图4和图5，风道110包括相互连通的竖直风道111和水平风道112，水平风道112位于竖直风道111的上方，变压单元400位于竖直风道111内，第一散热风机140位于水平风道112内。第一冷却单元100还包括与风道110连通的进风口120和出风口130，进风口120与竖直风道111连通，出风口130与水平风道112连通。
外部空气在第一散热风机140的吸力作用下从进风口120进入竖直风道111内，空气向上流动进入水平风道112的过程中，流动的空气对变压单元400进行风冷降温，与变压单元400进行了热交换后的空气最后经水平风道112和出风口130流出。
进一步的，参照图1、图2、及图4，进风口120位于箱体600的后侧靠下的位置，出风口130位于箱体600的前侧靠上的位置。这样，进风口120和出风口130位于变压单元400的两侧，空气从进风口120流向出风口130的过程中，将流经变压单元400的两侧，以对变压单元400的两侧同时风冷降温，使变压单元400降温均匀、提高降温效率。
进一步的，进风口120和出风口130处设有防雨百叶窗620，以防止外部异物经进风口120和出风口130进入容纳空间610内而影响内部器件。
变压单元400通过支架410固定安装至箱体600的底部，竖直风道111的下端与支架410之间通过连接板150固定连接，相邻的连接板150之间具有一定距离，以避免影响空气从进风口120流入竖直风道111内。竖直风道111的上端与水平风道112固定连接，水平风道112的上侧与箱体600的顶部固定连接，如此实现风道110在容纳空间610内的固定安装。
安装时，将竖直风道111由上至下套设在变压单元400的外围，通过连接板150将竖直风道111的下端与支架410固定连接，实现竖直风道111的固定；而后，将水平风道112的上侧通过吊环160固定安装至箱体600的顶部，实现水平风道112的固定；最后，将竖直风道111与水平风道112的连接位置处通过螺钉紧固，实现风道110整体的固定安装。
参照图6和图7，导冷组件210包括制冷剂容纳箱211和导冷板组件212，制冷剂容纳箱211与导冷板组件212之间通过第一管路213连通，导冷组件210内流通制冷剂，导冷板组件212紧靠变频单元500。具体的，第一管路213包括进管路2131和出管路2132，进和出是相对导冷板组件212而言的，也即，制冷剂容纳箱211与导冷板组件212之间通过进管路2131和出管路2132连通、进而实现制冷剂的循环。制冷剂容纳箱211内的制冷剂经进管路2131流入导冷板组件212内，制冷剂在导冷板组件212内流动的过程中，温度较低的制冷剂吸收并带走变频单元500散发出的热量，对变频单元500进行降温，而后，经过热交换后的制冷剂经出管路2132回流至制冷剂容纳箱211内。在制冷剂容纳箱211内，温度较高的制冷剂又变为温度较低的制冷剂，而后进入下一次换热循环。
制冷剂容纳箱211设于第二散热风机220上，充分利用空间。
制冷剂容纳箱211和第二散热风机220位于容纳空间610的端侧，导冷板组件212位于容纳空间610的后侧，一方面便于导冷板组件212与变频单元500紧靠，提高对变频单元500的散热效率，另一方面，位于端侧的第二散热风机220便于对变频单元500进行风冷散热，使变频单元500子空间内的热量能够及时经第二散热风机220排出。
进一步的，参照图1，箱体600靠近第二散热风机220、制冷剂容纳箱211、及导冷板组件212的位置处设有散热防护网630，一方面起到防护作用，另一方面也便于内部热量排出。
导冷板组件212包括多个并排设置的导冷板子单元2122，每个导冷板子单元2122包括多个并排设置的导冷板2121，处于同一个导冷板子单元2122内相邻的两个导冷板2121通过第二管路214连通。本实施例中，根据变频单元500的大小设计了两组导冷板子单元2122，两组导冷板子单元2122沿水平方向并排设置，每个导冷板子单元2122包括两个沿竖直方向并排设置的导冷板2121，两个导冷板2121之间通过第二管路214连通。
进管路2131内的制冷剂将分别流入每一组导冷板子单元2122，而后制冷剂在出管路2132内汇合、再回流至制冷剂容纳箱211。
参照图6和图7，导冷板2121与变频单元500可拆卸连接,，变频单元500包括用于安装电气元件的安装板510，导冷板2121与该安装板510通过合页230转动连接。维修时，可将导冷板2121向开门一样打开，便于维修和操作。此时，第二管路214在起到连通相邻的两个导冷板2121外，还起到了把手的作用，可同时将上下设置的导冷板2121一同打开。
第一管路213上设有排放口2133，本实施例中，排放口2133设于进管路2131上。需要维修时，将制冷剂从排放口2133排出，以便于后续维修操作。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (10)

  1. 一种集装箱式变频撬，包括箱体，所述箱体的内部形成有容纳空间，所述容纳空间内设有接线单元、变压单元、变频单元，其特征在于，所述变频撬还包括：
    第一冷却单元，其设于所述容纳空间内，包括风道和设于所述风道内的第一散热风机，所述变压单元位于所述风道内，空气在所述第一散热风机的作用下流经所述风道、对所述变压单元降温；
    第二冷却单元，其设于所述容纳空间内，包括导冷组件和第二散热风机，所述导冷组件靠近所述变频单元，所述导冷组件和所述第二散热风机对所述变频单元降温。
  2. 根据权利要求1所述的集装箱式变频撬，其特征在于，
    所述风道包括连通的竖直风道和水平风道，所述水平风道位于所述竖直风道的上方，所述变压单元位于所述竖直风道内，所述第一散热风机位于所述水平风道内；
    所述第一冷却单元包括与所述风道连通的进风口和出风口，所述进风口与所述竖直风道连通，所述出风口与所述水平风道连通。
  3. 根据权利要求2所述的集装箱式变频撬，其特征在于，
    所述进风口位于所述箱体的后侧靠下的位置，所述出风口位于所述箱体的前侧靠上的位置。
  4. 根据权利要求2所述的集装箱式变频撬，其特征在于，
    所述进风口和所述出风口处设有防雨百叶窗。
  5. 根据权利要求1所述的集装箱式变频撬，其特征在于，
    所述导冷组件包括制冷剂容纳箱和导冷板组件，所述制冷剂容纳箱与所述导冷板组件之间通过第一管路连通，所述导冷组件内流通制冷剂，所述导冷板组件紧靠所述变频单元，所述制冷剂容纳箱设于所述第二散热风机上。
  6. 根据权利要求5所述的集装箱式变频撬，其特征在于，
    所述第一管路上设有排放口。
  7. 根据权利要求5所述的集装箱式变频撬，其特征在于，
    所述导冷板组件包括多个并排设置的导冷板子单元，每个所述导冷板子单元包括多个并排设置的导冷板，处于同一个所述导冷板子单元内相邻的两个所述导冷板通过第二管路连通。
  8. 根据权利要求7所述的集装箱式变频撬，其特征在于，
    所述导冷板与所述变频单元可拆卸连接。
  9. 根据权利要求5所述的集装箱式变频撬，其特征在于，
    所述制冷剂容纳箱和所述第二散热风机位于所述容纳空间的端侧，所述导冷板组件位于所述容纳空间的后侧。
  10. 根据权利要求9所述的集装箱式变频撬，其特征在于，
    所述箱体靠近所述第二散热风机、所述制冷剂容纳箱、及所述导冷板组件的位置处设有散热防护网。
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