WO2019153648A1 - 一种工业空压机热回收用换热装置 - Google Patents

一种工业空压机热回收用换热装置 Download PDF

Info

Publication number
WO2019153648A1
WO2019153648A1 PCT/CN2018/095877 CN2018095877W WO2019153648A1 WO 2019153648 A1 WO2019153648 A1 WO 2019153648A1 CN 2018095877 W CN2018095877 W CN 2018095877W WO 2019153648 A1 WO2019153648 A1 WO 2019153648A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchange
water
heat
chamber
air compressor
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/095877
Other languages
English (en)
French (fr)
Inventor
庞海峰
章再稳
龚剑兵
姚丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU WENFENG CHEMICAL FIBER GROUP CO Ltd
Original Assignee
JIANGSU WENFENG CHEMICAL FIBER GROUP CO Ltd
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
Publication date
Application filed by JIANGSU WENFENG CHEMICAL FIBER GROUP CO Ltd filed Critical JIANGSU WENFENG CHEMICAL FIBER GROUP CO Ltd
Publication of WO2019153648A1 publication Critical patent/WO2019153648A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing

Definitions

  • the invention relates to waste heat recovery of an air compressor, in particular to a heat exchange device for heat recovery of an industrial air compressor.
  • the air supply range of the air compressor is the entire factory. If the air compressor is tripped due to poor cooling effect, it will seriously affect the production. Therefore, the safe and stable operation of the air compressor cooling system is very important.
  • the water-cooled air compressor equipment can cool it by cooling water to reduce the oil temperature, thus protecting the air compressor from continuous and safe operation and smooth air supply. However, during the operation of the normal air compressor, a large amount of heat can be generated. If the heat is cooled by circulating cooling water, the cooling water cooling towers are cooled and recirculated and cooled, and this heat energy is wastedly wasted.
  • a heat exchange device for heat recovery of an industrial air compressor comprising a heat exchange device including a casing and a first heat exchange plate and a first heat exchange plate disposed in parallel from the top to the bottom
  • the second heat exchange plate, the first heat exchange plate and the second heat exchange plate divide the casing into a first water chamber, a second water chamber and a heat exchange oil chamber, wherein the heat exchange oil chamber is located in the first water chamber and the second water chamber
  • the spiral water tube structure is arranged; the first water inlet is provided with a first water inlet, and the first water chamber is provided with a first water outlet; a second water inlet is arranged at the center of the second water chamber, and a second water outlet is arranged at the edge of the second water chamber; a heat exchange oil outlet is arranged at the center of the heat exchange oil chamber, and heat exchange oil is arranged at the edge of the heat exchange oil chamber import.
  • the invention can increase the contact area between the heat exchange oil and the cooling water and increase the heat exchange rate by providing water chambers on both sides of the heat exchange oil chamber.
  • the casing has a circular ring structure, and the first water inlet, the second water inlet, and the heat exchange oil outlet are both disposed on the side wall of the inner ring of the casing.
  • the first heat exchange plate and the second heat exchange plate are integrally formed from a high thermal conductivity thin metal plate, and spiral grooves are formed on the sides of the metal thin plate from the center to the edge.
  • the side of the side spiral groove is a flange; the flange of the first heat exchange plate facing away from the side of the second heat exchange plate is connected to the upper side of the casing; and the second heat exchange plate is facing away from the side of the first heat exchange plate
  • the flange is connected to the lower side of the casing; the first heat exchange plate is correspondingly connected to the flange on one side of the second heat exchange plate.
  • the outer wall of the cartridge is wrapped with a third insulating layer.
  • the third insulating layer is made of rubber sponge.
  • FIG. 1 is a schematic structural view of a heat exchange device for heat recovery of an industrial air compressor according to the present invention
  • FIG. 2 is a schematic view showing the structure of a heat exchange device for heat recovery of an industrial air compressor applied to a heat recovery system according to the present invention.
  • a heat exchange device for heat recovery of an industrial air compressor includes a heat exchange device 2 including a casing 21 and a first heat fixedly disposed in the casing 21 in parallel from top to bottom.
  • the oil chamber 26 is located between the first water chamber 24 and the second water chamber 25, and the first water chamber 24, the second water chamber 25 and the heat exchange oil chamber 26 are both in a spiral coil structure.
  • a first water inlet 2 is disposed at a center of the first water chamber 24, a first water outlet 242 is disposed at an edge of the first water chamber 24, and a second water inlet 251 is disposed at a center of the second water chamber 25, and the second water chamber 25 is A second water outlet 252 is disposed at the edge; a heat exchange oil outlet 261 is disposed at a center of the heat exchange oil chamber 26, and a heat exchange oil inlet 262 is disposed at an edge of the heat exchange oil chamber 26.
  • the casing 21 has a circular ring structure, and the first water inlet 2, the second water inlet 251 and the heat exchange oil outlet 262 are both opened on the side wall of the inner ring of the casing 21.
  • an air compressor 1 a medium temperature water tank 3, and a high temperature water tank 4 may be further included, and the air compressor 1 has an oil inlet port 11 and an oil discharge port 12.
  • the air discharge port 1 of the air compressor 1 is connected to the heat exchange oil inlet 262 through a pipe, and the oil inlet port 12 of the air compressor 1 is connected to the heat exchange oil outlet 261 through a pipe; the first water inlet port 2 of the first water chamber 24 is connected to the water pipe through the pipe; the first water outlet 242 of the first water chamber 24 is connected to the intermediate temperature water tank 3 through a pipe, and the outlet of the medium temperature water tank 3 is connected to the second water inlet 251 of the second water chamber 25 through the first water pump 51, and the medium temperature water tank 3 and the first
  • the water pump 51 is connected by a pipe, and the first water pump 51 and the second water inlet 251 are connected by a pipeline.
  • the first water pump 51 can transport the water in the medium temperature water tank 3 to the second water inlet 251, and the second water chamber 25
  • the second water outlet 252 communicates with the high temperature water tank 4 through a pipe.
  • the first heat exchange plate 22 and the second heat exchange plate 23 are integrally formed by a metal thin plate with high thermal conductivity.
  • a metal thin plate with high thermal conductivity.
  • an aluminum thin plate is used, and the two sides of the metal thin plate are formed from the center to the edge.
  • a spiral groove the side of the spiral groove on each side is a flange; the flange of the first heat exchange plate 22 facing away from the side of the second heat exchange plate 23 is welded to the upper side of the casing 21; the second heat The flange of the exchange plate 23 facing away from the first heat exchange plate 22 is welded to the lower side of the casing 21; the flange of the first heat exchange plate 22 opposite to the second heat exchange plate 23 is correspondingly welded.
  • the first water chamber 24, the second water chamber 25, and the heat exchange oil chamber 26 can each form a spiral coil structure.
  • the outer wall of the intermediate temperature water tank 3 is wrapped with a first insulation layer.
  • the outer wall of the high temperature water tank 4 is wrapped with a second insulation layer.
  • the outer wall of the casing 21 is wrapped with a third insulating layer.
  • the first insulating layer, the second insulating layer and the third insulating layer are all made of rubber sponge. Thereby, it plays a role of heat preservation.
  • the high temperature water tank 4 communicates with the second water inlet 2 of the second water chamber 24 through the return water pipe 42, and the second water pump 52 is installed on the return water pipe 42, and the second water pump 52 can transport the water in the high temperature water tank 4 to the second Inlet 2. Therefore, when the temperature of the water in the high temperature water tank is too low or the water is filled, the heat can be exchanged with the hot oil through the return water pipe.
  • the medium temperature water tank 3 is connected with a medium temperature domestic water pipe 32.
  • the high temperature water tank 4 is connected to a high temperature domestic water pipe 43. Thereby, medium-temperature water or high-temperature water can be used as needed.
  • each of the above-mentioned pipes is equipped with a solenoid valve for controlling the pipe switch.
  • the present invention can increase the contact area between the heat exchange oil and the cooling water by increasing the heat exchange rate by providing a water chamber on both sides of the heat exchange oil chamber; in addition, the first water chamber is cooled at a lower temperature.
  • the water exchanges heat, the water temperature of the first water chamber is medium temperature, and the medium temperature water is exchanged from the second water chamber to further increase the temperature of the water to reach a high temperature, and the medium temperature water or the high temperature water can be used according to the need, and
  • the same cooling water passes through the first water chamber and the second water chamber in turn for heat exchange, and can absorb more waste heat of the air compressor lubricating oil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

一种工业空压机热回收用换热装置，包括热交换装置（2），热交换装置（2）包括壳体（21）和从上至下平行设置于壳体（21）内的第一热交换板（22）和第二热交换板（23），第一热交换板（22）和第二热交换板（23）将壳体（21）分隔成第一水腔（24）、第二水腔（25）和换热油腔（26），换热油腔（26）位于第一水腔（24）和第二水腔（25）之间，第一水腔（24）、第二水腔（25）和换热油腔（26）均呈螺旋盘管结构；第一水腔（24）中心处设有第一进水口（241），第一水腔（24）边缘处设有第一出水口（242）；第二水腔（25）中心处设有第二进水口（251），第二水腔（25）边缘处设有第二出水口（252）；换热油腔（26）中心处设有换热油出口（261），换热油腔（26）边缘处设有换热油进口（262）。由此，通过在换热油腔（26）两侧均设置水腔（24，25），能提高换热油与冷却水的接触面积，提高热交换率。

Description

一种工业空压机热回收用换热装置 技术领域
本发明涉及空压机余热回收，尤其涉及一种工业空压机热回收用换热装置。
背景技术
空压机供气范围是整个工厂，万一因为冷却效果不好导致空压机跳机，将严重影响生产，因此空压机冷却系统的安全稳定运行是非常关键的。水冷式空压机设备，可以通过冷却水将其冷却，降低油温，从而保护空压机能连续安全运行，平稳供气。但是正常空压机运行过程中，能产生大量的热量，如果这些热量用循环冷却水来冷却后，这些冷却水上冷却塔降温后再循环冷却，这些热能将被很可惜地浪费掉。
发明内容
本发明的目的是在于提供一种工业空压机热回收用换热装置，解决上述现有技术问题中的一个或者多个。
根据本发明的一个方面，提供一种工业空压机热回收用换热装置，包括热交换装置，热交换装置包括壳体和从上至下平行设置于壳体内的第一热交换板和第二热交换板，第一热交换板和第二热交换板将壳体分隔成第一水腔、第二水腔和换热油腔，换热油腔位于第一水腔和第二水腔之间，第一水腔、第二水腔和换热油腔均呈螺旋盘管结构；第一水腔中心处设有第一进水口，第一水腔边缘处设有第一出水口；第二水腔中心处设有第二进水口，第二水腔边缘处设有第二出水口；换热油腔中心处设有换热油出口，换热油腔边缘处设有换热油进口。
本发明通过在换热油腔两侧均设置水腔，能提高与换热油与冷却水的接触面积，提高热交换率。
在一些实施方式中：盒体成呈圆环形结构，第一进水口、第二进水口和换热油出口均设于盒体内环的侧壁。
在一些实施方式中：第一热交换板和第二热交换板均由高导热率的金属薄板一体成型制成，在金属薄板两侧面均形成从中心到边缘凹凸相间的螺旋形凹槽，每侧的螺旋形凹槽侧边为凸缘；第一热交换板背向第二热交换板一侧的凸缘与盒体上侧面连接；第二热交换板背向第一热交换板一侧的凸缘与盒体下侧面连接；第一热交换板与第二热交换板相向一侧的凸缘 对应连接。由此，能够提高第一水腔、第二水腔分别与换热油腔之间的热交换率。
在一些实施方式中：盒体外壁包裹有第三保温层。
在一些实施方式中：第三保温层以橡塑海棉制成。
附图说明
图1是本发明一种工业空压机热回收用换热装置的结构示意图；
图2是本发明一种工业空压机热回收用换热装置应用于热回收系统的结构示意图。
具体实施方式
下面结合附图说明，对本发明作进一步详细说明。
如图1所示，一种工业空压机热回收用换热装置，包括热交换装置2，热交换装置2包括壳体21和从上至下平行固定设置于壳体21内的第一热交换板22和第二热交换板23，第一热交换板22和第二热交换板23将壳体21分隔成第一水腔24、第二水腔25和换热油腔26，换热油腔26位于第一水腔24和第二水腔25之间，第一水腔24、第二水腔25和换热油腔26均呈螺旋盘管结构。
第一水腔24中心处设有第一进水口2，第一水腔24边缘处设有第一出水口242；第二水腔25中心处设有第二进水口251，第二水腔25边缘处设有第二出水口252；换热油腔26中心处设有换热油出口261，换热油腔26边缘处设有换热油进口262。在本实施例中，盒体21成呈圆环形结构，第一进水口2、第二进水口251和换热油出口262均开设于盒体21内环的侧壁。
在实际使用中，如图2所示，还可以包括空压机1、中温水箱3和高温水箱4，空压机1具有进油口11和排油口12。
空压机1排油口12通过管道连通换热油进口262，空压机1进油口12通过管道连通换热油出口261；第一水腔24的第一进水口2通过管道连通自来水管，第一水腔24的第一出水口242通过管道连通中温水箱3，中温水箱3出口通过第一水泵51连通第二水腔25的第二进水口251，中温水箱3与第一水泵51之间通过管道连通，第一水泵51与第二进水口251之间通过管道连通，第一水泵51能将中温水箱3内的水输送至第二进水口251，第二水腔25的第二出水口252通过管道连通高温水箱4。
其中，第一热交换板22和第二热交换板23均由高导热率的金属薄板一体成型制成，在本实施例中采用铝薄板，在金属薄板两侧面均形成从中 心到边缘凹凸相间的螺旋形凹槽，每侧的螺旋形凹槽侧边为凸缘；第一热交换板22背向第二热交换板23一侧的凸缘与盒体21上侧面焊接连接；第二热交换板23背向第一热交换板22一侧的凸缘与盒体21下侧面焊接连接；第一热交换板22与第二热交换板23相向一侧的凸缘对应焊接连接。由此，第一水腔24、第二水腔25和换热油腔26均能够形成螺旋盘管结构。
其中，中温水箱3外侧壁包裹有第一保温层。高温水箱4外侧壁包裹有第二保温层。盒体21外壁包裹有第三保温层。第一保温层、第二保温层和第三保温层均以橡塑海棉制成。由此，起到保温作用。
其中，高温水箱4通过回水管42连通于第二水腔24的第二进水口2，回水管42上安装有第二水泵52，第二水泵52能够将高温水箱4中的水输送至第二进水口2。由此，当高温水箱中水温过低或蓄满水的情况下，可以通过回水管来进行循环与热油进行热交换。
其中，中温水箱3连通有中温生活用水管32。高温水箱4连通有高温生活用水管43。由此，可以根据需要来使用中温水或高温水。
其中，上述每段管道上均安装有电磁阀用以控制管道开关。
综上所述，本发明通过在换热油腔两侧均设置水腔，能提高与换热油与冷却水的接触面积，提高热交换率；此外，第一水腔以温度较低的冷却水进行热交换，第一水腔出水温度为中温，再将中温的水从第二水腔中进行换热，更加提高水的温度，达到高温，可以根据需要来使用中温水或高温水，且同一冷却水依次经过第一水腔和第二水腔来进行热交换，可以吸收更多空压机润滑油的余热。
以上所述仅是本发明的一种实施方式，应当指出，对于本领域普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干相似的变形和改进，这些也应视为本发明的保护范围之内。

Claims (6)

  1. 一种工业空压机废热利用装置，其特征在于：包括热交换装置(2)，所述热交换装置(2)包括壳体(21)和从上至下平行设置于所述壳体(21)内的第一热交换板(22)和第二热交换板(23)，所述第一热交换板(22)和第二热交换板(23)将所述壳体(21)分隔成第一水腔(24)、第二水腔(25)和换热油腔(26)，所述换热油腔(26)位于所述第一水腔(24)和第二水腔(25)之间，所述第一水腔(24)、第二水腔(25)和换热油腔(26)均呈螺旋盘管结构；所述第一水腔(24)中心处设有第一进水口(2)，第一水腔(24)边缘处设有第一出水口(242)；所述第二水腔(25)中心处设有第二进水口(251)，第二水腔(25)边缘处设有第二出水口(252)；所述换热油腔(26)中心处设有换热油出口(261)，换热油腔(26)边缘处设有换热油进口(262)。
  2. 根据权利要求1所述的一种工业空压机热回收用换热装置，其特征在于：所述盒体(21)成呈圆环形结构，所述第一进水口(2)、第二进水口(251)和换热油出口(262)均设于所述盒体(21)内环的侧壁。
  3. 根据权利要求1所述的一种工业空压机热回收用换热装置，其特征在于：所述第一热交换板(22)和第二热交换板(23)均由高导热率的金属薄板一体成型制成，在金属薄板两侧面均形成从中心到边缘凹凸相间的螺旋形凹槽，每侧的所述螺旋形凹槽侧边为凸缘；所述第一热交换板(22)背向第二热交换板(23)一侧的凸缘与所述盒体(21)上侧面连接；所述第二热交换板(23)背向第一热交换板(22)一侧的凸缘与所述盒体(21)下侧面连接；所述第一热交换板(22)与第二热交换板(23)相向一侧的凸缘对应连接。
  4. 根据权利要求1所述的一种工业空压机热回收用换热装置，其特征在于：所述盒体(21)外壁包裹有第三保温层。
  5. 根据权利要求4所述的一种工业空压机热回收用换热装置，其特征在于：所述第三保温层以橡塑海棉制成。
  6. 根据权利要求3所述的一种工业空压机热回收用换热装置，其特征在于：所述高导热率的金属薄板为铝薄板。
PCT/CN2018/095877 2018-02-08 2018-07-17 一种工业空压机热回收用换热装置 Ceased WO2019153648A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810128173.X 2018-02-08
CN201810128173.XA CN108168349A (zh) 2018-02-08 2018-02-08 一种工业空压机热回收用换热装置

Publications (1)

Publication Number Publication Date
WO2019153648A1 true WO2019153648A1 (zh) 2019-08-15

Family

ID=62513665

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/095877 Ceased WO2019153648A1 (zh) 2018-02-08 2018-07-17 一种工业空压机热回收用换热装置

Country Status (2)

Country Link
CN (1) CN108168349A (zh)
WO (1) WO2019153648A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112253427A (zh) * 2020-10-24 2021-01-22 江西智奇压缩机有限公司 一种用于空压机的热能回收装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168349A (zh) * 2018-02-08 2018-06-15 江苏文凤化纤集团有限公司 一种工业空压机热回收用换热装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000343A1 (en) * 1980-07-11 1982-02-04 R Holen Heat exchanger for flowing media
US4360059A (en) * 1977-10-01 1982-11-23 Funke Warmeaustauscher Apparatebau Kg Tube type heat exchanger
CN1719187A (zh) * 2005-08-01 2006-01-11 西安交通大学 一种连续螺旋折流板管壳式换热器
CN203893704U (zh) * 2014-01-27 2014-10-22 南通曙光机电工程有限公司 一种非等距双螺旋折流板管壳式换热器
CN206816470U (zh) * 2017-03-25 2017-12-29 南京榆液液压有限公司 一种空压机余热回收装置
CN108168349A (zh) * 2018-02-08 2018-06-15 江苏文凤化纤集团有限公司 一种工业空压机热回收用换热装置
CN108317070A (zh) * 2018-02-08 2018-07-24 江苏文凤化纤集团有限公司 一种工业空压机废热循环利用系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360059A (en) * 1977-10-01 1982-11-23 Funke Warmeaustauscher Apparatebau Kg Tube type heat exchanger
WO1982000343A1 (en) * 1980-07-11 1982-02-04 R Holen Heat exchanger for flowing media
CN1719187A (zh) * 2005-08-01 2006-01-11 西安交通大学 一种连续螺旋折流板管壳式换热器
CN203893704U (zh) * 2014-01-27 2014-10-22 南通曙光机电工程有限公司 一种非等距双螺旋折流板管壳式换热器
CN206816470U (zh) * 2017-03-25 2017-12-29 南京榆液液压有限公司 一种空压机余热回收装置
CN108168349A (zh) * 2018-02-08 2018-06-15 江苏文凤化纤集团有限公司 一种工业空压机热回收用换热装置
CN108317070A (zh) * 2018-02-08 2018-07-24 江苏文凤化纤集团有限公司 一种工业空压机废热循环利用系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112253427A (zh) * 2020-10-24 2021-01-22 江西智奇压缩机有限公司 一种用于空压机的热能回收装置

Also Published As

Publication number Publication date
CN108168349A (zh) 2018-06-15

Similar Documents

Publication Publication Date Title
WO2017215159A1 (zh) 功率电池的工质接触式冷却系统及其工作方法
CN205227914U (zh) 一种半导体制冷恒温水浴槽
CN110590116A (zh) 一种分离式热泵污泥低温干化机
WO2019153648A1 (zh) 一种工业空压机热回收用换热装置
CN210091870U (zh) 一种油浸式变压器
CN205356934U (zh) 一种螺旋波纹式水冷板
CN108668508B (zh) 机柜的冷却装置及机柜
CN208203495U (zh) 一种工业空压机废热循环利用系统
CN101533917A (zh) 一种加热与制冷流动液体的装置
TW201321537A (zh) 鍍膜設備
CN202871775U (zh) 水冷散热器
CN207474516U (zh) 一种电池包换热结构
CN211739967U (zh) 一种板式组合换热器
CN211116489U (zh) 一种空压机热能回收系统
CN206145875U (zh) 一种改进的全热回收空调
CN206113731U (zh) 一种具有高效换热的换热器
CN210702061U (zh) 一种带有散热功能的抗震支架配件模具
JP2020047559A5 (zh)
CN204806939U (zh) 毛细管密布式油冷却器
CN210885773U (zh) 分离式热泵污泥低温干化机
CN203810781U (zh) 一种高效冷水机
CN210168376U (zh) 一种数据中心水冷散热机柜
CN222073691U (zh) 一种用于水冷制冷机的水冷散热器
CN206421886U (zh) 一种中频变压器直接水冷铁芯装置
CN210722688U (zh) 变压器水循环冷却装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18904876

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18904876

Country of ref document: EP

Kind code of ref document: A1