CN113624046B - Array fin type condensing device and loop heat pipe - Google Patents
Array fin type condensing device and loop heat pipe Download PDFInfo
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- CN113624046B CN113624046B CN202110918146.4A CN202110918146A CN113624046B CN 113624046 B CN113624046 B CN 113624046B CN 202110918146 A CN202110918146 A CN 202110918146A CN 113624046 B CN113624046 B CN 113624046B
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- 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
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/043—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure forming loops, e.g. capillary pumped loops
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
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Abstract
The invention belongs to the technical field of thermal control, and discloses an array fin type condensing device and a loop heat pipe comprising the condensing device. The condensing device provided by the invention adopts the fins with the micro-channels, so that the primary heat exchange area is increased, the condensing efficiency of the condenser is improved, and the miniaturization of the condenser under certain condensing efficiency is ensured.
Description
Technical Field
The invention belongs to the technical field of thermal control, and particularly relates to an array fin type condensing device and a loop heat pipe.
Background
The heat pipe is a high-efficiency phase-change heat transfer element developed in the seventies of the twentieth century, consists of an evaporation section, a heat insulation section and a condensation section, and has the advantages of no need of extra energy, no moving parts, small heat transfer temperature difference and the like. The heat pipe type heat exchanger ingeniously combines two phase change heat exchange processes of boiling and condensation, can quickly and uniformly transfer heat gathered on the surface of an electronic component to a condensation surface with a larger heat dissipation area through evaporation of a heat pipe working medium under the condition of small temperature difference, can solve the problem that the conventional high-heat-flow-density electronic component is difficult to quickly and efficiently dissipate heat, and is widely applied to heat and mass transfer equipment in the fields of aerospace, chemical engineering, metallurgy and the like.
However, the evaporation section, the condensation section and the heat dissipation device of the conventional heat pipe are stacked, so that the heat pipe occupies a large volume space of an electronic product, and is difficult to meet the increasingly light and small-sized characteristics of the electronic product, and the problem that cooling medium leaks and seriously damages electronic elements can also exist in active liquid cooling. The loop heat pipe not only inherits the advantages of the traditional heat pipe, but also overcomes the defects existing when the evaporation section and the condensation section are integrally arranged.
A Loop Heat Pipe (LHP) is a high efficiency heat transfer device which uses the capillary force generated by capillary wick in evaporator to drive working fluid to flow and uses the phase change process of working fluid to transfer heat, and is composed of five basic structures of evaporator, condenser, liquid storage/compensation device, gas pipeline and liquid pipeline. The working principle is as follows: before the loop heat pipe is started, the evaporator capillary core is filled with liquid, when a certain heat load is applied to the evaporator, the saturated liquid in the capillary core absorbs heat, and is evaporated on the surface of the capillary core to form steam, and the steam enters the condenser along the gas pipeline through the gas channel. In the condenser, the steam is condensed to release latent heat to form saturated liquid, the saturated liquid is further supercooled in the flowing process and enters the core of the evaporator along the liquid pipeline, and the circulation of the working medium is driven by the capillary pressure generated by the capillary core of the evaporator without external power. The channels of the liquid phase working medium and the gas phase working medium are mutually independent, the gas pipeline and the liquid pipeline are more flexible in arrangement path, and the transmission distance is longer.
The loop heat pipe has the advantages of large heat transfer distance, strong heat dissipation capacity, strong antigravity, good heat balance, convenient installation and layout and the like, but the traditional loop heat pipe still has the defects that: an external air-cooled or liquid-cooled cooler is adopted for cooling the condenser, large contact thermal resistance exists between the cooler and the condenser, the fin efficiency of the cooler is low, and the increasing heat dissipation requirements cannot be met under the limited heat dissipation area; on the other hand, the evaporator capillary core has an air volume phenomenon which easily causes system startup failure, and the traditional capillary core structure is difficult to balance the contradiction between high capillary pump suction force and high permeability on the requirement of pore diameter. Therefore, there is a need to design a condenser and wick design arrangement that is highly efficient and compact to overcome the above-mentioned disadvantages.
Disclosure of Invention
Based on the situation, the invention provides an array fin type condensing device for a loop heat pipe, which adopts hollow columnar fins with micro-channels, the fins are arranged in an array manner, the primary heat exchange area is greatly increased, steam directly generates phase change on the wall surfaces of the micro-channels, the columnar fins can reduce the flow resistance of cooling fluid, the condensing efficiency of the condenser is greatly improved, the number of the micro-channels which can be arranged in a certain space is large, and the miniaturization of the condenser under certain condensing efficiency can be ensured by the efficient heat exchange technology of the micro-channels.
Therefore, the invention protects the following technical scheme:
an array fin type condensing device is characterized in that a main body of the condensing device is a cylinder, an upper partition plate and a lower partition plate are arranged inside the main body, the interior of the main body is sequentially divided into a steam cavity, a heat exchange cavity and a condensed liquid cavity from top to bottom, a steam inlet is formed in the upper portion of the main body, a condensed liquid outlet is formed in the lower portion of the main body, the steam inlet is communicated with the steam cavity, the condensed liquid outlet is communicated with the condensed liquid cavity, a plurality of hollow columnar fins which are arranged in an array mode are arranged in the heat exchange cavity, the top ends and the bottom ends of the hollow columnar fins are open and are respectively connected with the upper partition plate and the lower partition plate, through holes are formed in the positions, connected with the hollow columnar fins, of the upper partition plate and the lower partition plate, of the hollow columnar fins are respectively communicated with the steam cavity and the condensed liquid cavity, and steam is supplied to circulate as a steam micro-channel;
the side surface of the heat exchange cavity is closed, and a cooling fluid inlet and a cooling fluid outlet which are communicated with the heat exchange cavity are formed in the main body; alternatively, the first and second electrodes may be,
the side of the heat exchange cavity is completely or partially opened, and the condensing device further comprises a fan for blowing cool air to the heat exchange cavity to cool the hollow columnar fins.
Preferably, the main body is a rectangular cylinder or a cylinder, and the hollow cylindrical fins are arranged in a rectangular or circular array; when the side surface of the heat exchange cavity is partially opened, at least two notches are arranged on the side surface of the heat exchange cavity for the cooling air to flow in and out. The main body is preferably a rectangular cylinder or a cylinder, so that the processing and the production are convenient, the miniaturization of the device is ensured under the condition of ensuring the condensation efficiency, and the space is utilized to the maximum efficiency.
Preferably, the cross section of the hollow cylindrical fin is in a wing shape, an oval shape or a shuttle shape, so that the flow resistance of the cooling fluid can be reduced, the circulation of the cooling fluid is smoother and quicker, and the condensation efficiency of the condenser is improved.
Preferably, the hollow cylindrical fins in two adjacent rows or two adjacent rows are arranged in a staggered manner, so that the flow path of the cooling fluid is a bent path, the contact with the heat exchange surface of the fins is increased in the circulating process, and the condensation efficiency is improved.
The invention also provides a loop heat pipe which comprises an evaporator, a condenser, a liquid storage/compensation device, a gas pipeline and a liquid pipeline, wherein the condenser is the array fin type condensing device.
The evaporator capillary core in the evaporator is internally provided with a plurality of condensate microchannels and evaporator steam microchannels, the condensate microchannels and the evaporator steam microchannels are arranged at intervals, the condensate microchannels and the evaporator steam microchannels are sealed at one end, the other end of the condensate microchannels and the evaporator steam microchannels are open, the closed ends of the condensate microchannels and the evaporator steam microchannels are opposite in orientation, and the open ends of the condensate microchannels and the evaporator steam microchannels are opposite in orientation, the open ends of the condensate microchannels are used for allowing condensate to flow in, and the open ends of the evaporator steam microchannels are used for allowing steam to flow out of a gas pipeline to enter the evaporator.
The novel evaporator capillary core structure adopted in the invention increases the evaporation area of the capillary core surface, improves the wetting efficiency of the capillary core, is convenient for vapor generated by evaporation to flow to a gas pipeline, has respective channels for gas and liquid, can be quickly discharged even if bubbles are generated, and cannot obstruct the normal supply of the liquid to an evaporation interface, thus causing the failure of starting a heat pipe system.
Preferably, the evaporator capillary core is a cylinder, the condensate micro-channel and the evaporator vapor micro-channel are radially arranged outwards, the top end of the condensate micro-channel is open, the bottom end of the condensate micro-channel is closed, and the top end of the evaporator vapor micro-channel is closed, and the bottom end of the evaporator vapor micro-channel is open. The open direction of the condensate microchannel is opposite to that of the evaporator vapor microchannel, the condensate is absorbed by the capillary wick material forming the channel in the process of flowing from the open end to the closed end, and the condensate is evaporated into gas by the evaporator and enters the gas pipeline from the open end of the evaporator vapor microchannel.
Preferably, the cross sections of the condensate micro-channel and the evaporator steam micro-channel are triangular, fan-shaped or trapezoidal, so that the volume of the channels is increased, and the circulation is accelerated.
Preferably, a line wick is provided in the liquid line.
Preferably, the pore size of the porous structure of the pipeline capillary core is distributed in a gradient manner, and the pore size of the pores on the pipeline capillary core is gradually reduced in the liquid pipeline from the condenser to the evaporator.
The gradient pore size structure of the capillary core applied to the liquid pipeline solves the problem of difficult liquid return in the working process of the loop heat pipe, the capillary core which is farther away from the condenser has a smaller pore size and can provide larger capillary force, and the capillary core which is closer to the condenser has a larger pore size, so that the resistance of a working medium flowing in the capillary core is reduced under the condition of ensuring enough capillary force, the condensed water in the condenser can quickly and efficiently return to the evaporator, and the capillary core in the evaporator is prevented from being burnt.
The beneficial effects of the invention are:
1. according to the array fin type condenser, the fins with the micro channels are adopted, the fins are arranged in an array mode, the primary heat exchange area is greatly increased, steam directly generates phase change on the wall surface of the micro channels, the columnar fins can reduce the flow resistance of cooling fluid, the condensing efficiency of the condenser is greatly improved, the number of the micro channels which can be arranged in a certain space is large, and the condenser can be miniaturized under certain condensing efficiency through the efficient heat exchange technology of the micro channels.
2. The novel capillary core structure applied to the evaporator is provided with the plurality of steam micro-channels and the condensate micro-channels, the evaporation area of the surface of the capillary core is increased, and steam generated by evaporation conveniently flows to the gas pipeline.
3. The gradient pore capillary core structure applied to the liquid pipeline solves the problem of difficult liquid return in the working process of the loop heat pipe, reduces the resistance of the working medium in the capillary core when the working medium flows in the capillary core under the condition of ensuring enough capillary force, enables the condensed water in the condenser to quickly and efficiently return to the evaporator, and avoids the capillary core in the evaporator from being burnt.
4. The invention ensures the miniaturization of the condenser while obviously improving the heat exchange efficiency by improving a plurality of structures in the heat pipe, and also solves the problem that the system is easy to start up and fail due to difficult liquid return and air accumulation in the heat pipe.
Drawings
Fig. 1 is a schematic perspective view of an array fin condenser according to the present invention.
Fig. 2 is a schematic perspective view of another array fin condenser according to the present invention.
Fig. 3 is a perspective view of the array fin condenser of fig. 1.
Fig. 4 is a plan view of the upper separator plate of fig. 1.
Fig. 5 is a schematic structural diagram of the loop heat pipe of the present invention.
Fig. 6 is a schematic diagram of an evaporator wick.
FIG. 7 isbase:Sub>A cross-sectional view of A-A, B-B, C-C of FIG. 5.
Wherein the reference numbers indicate elements or structures that are: the device comprises a main body 1, a steam cavity 11, a steam inlet 11a, a heat exchange cavity 12, a cooling fluid inlet 12a, a cooling fluid outlet 12b, a condensate cavity 13, a condensate outlet 13a, an upper partition plate 2, a lower partition plate 3, a hollow cylindrical fin 4, a steam microchannel 4a, an evaporator 5, an evaporator capillary core 51, a condensate microchannel 511, an evaporator steam microchannel 512, a liquid reservoir 6, a gas pipeline 7, a liquid pipeline 8, a pipeline capillary core 81 and a condenser 9.
Detailed Description
The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. It will be clear that the following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1 an array fin condenser
An array fin type condenser as shown in fig. 1-4, an array fin type condensing device, characterized in that: the main body 1 of the condensing device is a cylinder, an upper clapboard 2 and a lower clapboard 3 are arranged inside the main body 1, the inside of the main body 1 is sequentially divided into a steam cavity 11, a heat exchange cavity 12 and a condensed liquid cavity 13 from top to bottom, the upper part of the main body 1 is provided with a steam inlet 11a, the lower part of the main body 1 is provided with a condensed liquid outlet 13a, the steam inlet 11a is communicated with the steam cavity 11, the condensed liquid outlet 13a is communicated with the condensed liquid cavity 13, a plurality of hollow cylindrical fins 4 which are arranged in an array manner are arranged in the heat exchange cavity 12, the top ends and the bottom ends of the hollow cylindrical fins 4 are open and are respectively connected with the upper clapboard 2 and the lower clapboard 3, through holes are arranged at the positions, connected with the hollow cylindrical fins 4, on the upper clapboard 2 and the lower clapboard 3, so that the hollow cylindrical fins 4 are respectively communicated with the steam cavity 11 and the condensed liquid cavity 13, and the insides of the hollow cylindrical fins 4 are used as steam microchannels 4a for steam circulation;
the heat exchange chamber 12 is closed on the side, as shown in fig. 2, and the main body 1 is provided with a cooling fluid inlet 12a and a cooling fluid outlet 12b communicating with the heat exchange chamber 12, in which case it is suitable for a liquid cooling fluid, for example water, to be used as the cooling fluid; alternatively, the sides of the heat exchange chamber 12 are completely or partially open, as shown in fig. 1, which is suitable for using gas as cooling fluid, and the condensing device further comprises a fan for blowing cool air to the heat exchange chamber 12 to cool the hollow cylindrical fins 4.
In some embodiments, the body 1 is a rectangular cylinder or a cylinder, and the hollow cylindrical fins 4 are arranged in a rectangular or circular array; when the side surface of the heat exchange cavity 12 is partially opened, at least two notches are arranged on the side surface of the heat exchange cavity 12 for the cooling air to flow in and out.
In some embodiments, the cross-section of the hollow cylindrical fins 4 is airfoil or oval or fusiform. An airfoil herein refers to the cross-sectional shape of an aircraft wing. The wing-shaped or oval-shaped or shuttle-shaped condenser can reduce the flow resistance of cooling fluid, ensures that the circulation of the cooling fluid is smoother, and improves the condensation efficiency of the condenser.
In some embodiments, the hollow cylindrical fins 4 of two adjacent columns or two adjacent rows are arranged in a staggered manner.
According to the array fin type condenser, the hollow columnar fins with the micro-channels are adopted, the fins are arranged in an array mode, the primary heat exchange area is greatly increased, steam directly generates phase change on the wall surfaces of the micro-channels, the columnar fins can reduce the flow resistance of cooling fluid, the condensing efficiency of the condenser is greatly improved, the number of the micro-channels which can be arranged in a certain space is large, and the condenser can be miniaturized under certain condensing efficiency through the efficient heat exchange technology of the micro-channels.
Example 2A Loop Heat pipe
A loop heat pipe as shown in fig. 5-7, comprising an evaporator 5, a liquid reservoir 6, a gas pipeline 7, a liquid pipeline 8 and a condenser 9, wherein the condenser 9 is the array fin type condensing device of embodiment 1. The evaporator 5 and the condenser 9 are connected by a gas line 7, the condenser 9 and the evaporator 5 are connected by a liquid line 8 to form a loop, and the liquid reservoir 6 is connected to the evaporator 5 and the liquid line 8 by pipes, respectively.
In some embodiments, a plurality of condensate microchannels 511 and evaporator vapor microchannels 512 are disposed in the evaporator capillary wick 51 in the evaporator 5, the condensate microchannels 511 and the evaporator vapor microchannels 512 are spaced apart from each other, each of the condensate microchannels 511 and the evaporator vapor microchannels 512 has one end closed and the other end open, the closed ends of the condensate microchannels 511 and the evaporator vapor microchannels 512 face opposite directions, the open ends of the condensate microchannels 511 are for inflow of condensate, and the open ends of the evaporator vapor microchannels 512 are for outflow of vapor into the gas line 7.
In some embodiments, the evaporator capillary wick 51 is a cylinder, the condensate microchannel 511 and the evaporator vapor microchannel 512 are radially outwardly arranged, the condensate microchannel 511 is open at the top and closed at the bottom, and the evaporator vapor microchannel 512 is open at the top and closed at the bottom. Be applied to novel capillary structure of evaporimeter has a plurality of steam microchannel and condensate microchannel, has increased capillary surface evaporation area, has promoted the wetting efficiency of capillary and the steam flow who is convenient for the evaporation to produce to gas pipeline.
In some embodiments, the condensate microchannels 511 and evaporator vapor microchannels 512 are triangular or fan-shaped or trapezoidal in cross-section.
The working process of the loop heat pipe is as follows:
the evaporator 5 is started to heat, liquid in the evaporator capillary wick 51 is heated and evaporated into gas, condensate in the liquid pipeline 8 continuously enters the evaporator capillary wick 51 due to capillary action, the condensate enters from the open end of the condensate microchannel 511 and is absorbed by the capillary wick water-absorbing material on the side wall of the condensate microchannel 511 in the flowing process and is evaporated into gas under the action of the evaporator 5, vapor is gathered in the evaporator vapor microchannel 512 and is gathered into the gas pipeline 7 from the open end of the evaporator vapor microchannel 512 and then enters the condenser 9, the vapor is condensed into condensate in the condenser 9, and the condensate enters the liquid pipeline 8 and then enters the evaporator 5. The liquid storage device 6 is separated from the evaporator 5, is connected with the liquid pipeline 8 and the evaporator 5 through a pipeline and is used for storing redundant working media, the working temperature of the loop heat pipe can be accurately controlled by controlling the temperature of the liquid storage device 6, the circulation of the working media is driven by the capillary pressure generated by the evaporator capillary core 51, and no external power is needed.
In some embodiments, a line wick 81 is disposed in the liquid line 8. At this time, the capillary wick in the evaporator 5 can be a conventional structure capillary wick, and the aforementioned structure of the evaporator capillary wick 51 does not need to be adopted at the same time.
In some embodiments, the pore size of the porous structure of the line wick 81 is graded such that the pore size of the pores on the line wick 81 decreases gradually in the liquid line 8 from the condenser 9 to the evaporator 5.
The gradient pore capillary core structure applied to the liquid pipeline 8 solves the problem of difficult liquid return in the working process of the loop heat pipe, reduces the resistance of the working medium in the capillary core when the working medium flows in the capillary core under the condition of ensuring enough capillary force, enables the condensed water in the condenser to quickly and efficiently return to the evaporator, and avoids the capillary core in the evaporator from being burnt.
The invention ensures the miniaturization of the condenser while obviously improving the heat exchange efficiency by improving a plurality of structures in the heat pipe, and also solves the problem that the system is easy to start up and fail due to difficult liquid return and air accumulation in the heat pipe.
Claims (3)
1. A loop heat pipe includes an evaporator (5), a reservoir (6), a gas line (7), a liquid line (8), and a condenser (9), characterized in that: the condenser (9) is an array fin type condensing device, a main body (1) of the condensing device is a cylinder, an upper partition plate (2) and a lower partition plate (3) are arranged inside the main body (1), the inside of the main body (1) is sequentially divided into a steam cavity (11), a heat exchange cavity (12) and a condensate liquid cavity (13) from top to bottom, a steam inlet (11 a) is formed in the upper portion of the main body (1), a condensate liquid outlet (13 a) is formed in the lower portion of the main body (1), the steam inlet (11 a) is communicated with the steam cavity (11), the condensate liquid outlet (13 a) is communicated with the condensate liquid cavity (13), a plurality of hollow cylindrical fins (4) which are arranged in an array mode are arranged in the heat exchange cavity (12), the top ends and the bottom ends of the hollow cylindrical fins (4) are open and are respectively connected with the upper partition plate (2) and the lower partition plate (3), through holes are formed in the positions, where the hollow cylindrical fins (4) are connected, on the upper partition plate (2) and the lower partition plate (3) and the hollow cylindrical fins (4) are respectively communicated with the steam cavity (11) and the condensate liquid cavity (13), and the hollow cylindrical fins (4) serve as steam supply channels for circulation of steam;
the side surface of the heat exchange cavity (12) is closed, and a cooling fluid inlet (12 a) and a cooling fluid outlet (12 b) which are communicated with the heat exchange cavity (12) are arranged on the main body (1); or the side surface of the heat exchange cavity (12) is completely or partially opened, and the condensing device further comprises a fan for blowing cool air to the heat exchange cavity (12) to cool the hollow columnar fins (4);
the main body (1) is a rectangular cylinder or a cylinder, and the hollow columnar fins (4) are arranged in a rectangular or circular array; when the side surface of the heat exchange cavity (12) is partially opened, at least two notches are arranged on the side surface of the heat exchange cavity (12) for cooling air to flow in and out;
a plurality of condensate microchannels (511) and evaporator steam microchannels (512) are arranged in an evaporator capillary core (51) in the evaporator (5), the condensate microchannels (511) and the evaporator steam microchannels (512) are arranged at intervals, one ends of the condensate microchannels (511) and the evaporator steam microchannels (512) are closed, the other ends of the condensate microchannels and the evaporator steam microchannels (512) are open, the closed ends of the condensate microchannels (511) and the closed ends of the evaporator steam microchannels (512) face opposite directions, the open ends of the condensate microchannels (511) are used for allowing a condensate to flow in, and the open ends of the evaporator steam microchannels (512) are used for allowing steam to flow out and enter a gas pipeline (7);
the evaporator capillary core (51) is a cylinder, the condensate micro-channel (511) and the evaporator steam micro-channel (512) are arranged radially outwards, the top end of the condensate micro-channel (511) is open, the bottom end of the condensate micro-channel is closed, and the top end of the evaporator steam micro-channel (512) is closed and the bottom end of the evaporator steam micro-channel is open; the cross sections of the condensate micro-channel (511) and the evaporator vapor micro-channel (512) are triangular, fan-shaped or trapezoidal;
a pipeline capillary core (81) is arranged in the liquid pipeline (8); the pore diameter of the porous structure of the pipeline capillary core (81) is distributed in a gradient manner, and the pore diameter of the pores on the pipeline capillary core (81) is gradually reduced in a liquid pipeline (8) from the condenser (9) to the evaporator (5).
2. A loop heat pipe as set forth in claim 1, wherein: the cross section of the hollow columnar fin (4) is in an airfoil shape or an oval shape or a shuttle shape.
3. A loop heat pipe as set forth in claim 1, wherein: the hollow columnar fins (4) of two adjacent columns or two adjacent rows are arranged in a staggered manner.
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| CN202110918146.4A CN113624046B (en) | 2021-08-11 | 2021-08-11 | Array fin type condensing device and loop heat pipe |
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| CN202110918146.4A CN113624046B (en) | 2021-08-11 | 2021-08-11 | Array fin type condensing device and loop heat pipe |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2564543Y (en) * | 2002-07-15 | 2003-08-06 | 淄博华周制药设备有限公司 | Vertical condenser |
| CN101900504A (en) * | 2010-08-19 | 2010-12-01 | 中冶南方工程技术有限公司 | Flat type loop heat pipe |
| CN202329321U (en) * | 2011-12-01 | 2012-07-11 | 中国科学院工程热物理研究所 | Gravity heat pipe with condensing section switching function |
| CN208308465U (en) * | 2017-11-30 | 2019-01-01 | 黄叙然 | A kind of horizontal ammonia water evaporator |
| CN111043894A (en) * | 2018-10-11 | 2020-04-21 | 丹佛斯有限公司 | Pipe assembly and heat exchanger |
-
2021
- 2021-08-11 CN CN202110918146.4A patent/CN113624046B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2564543Y (en) * | 2002-07-15 | 2003-08-06 | 淄博华周制药设备有限公司 | Vertical condenser |
| CN101900504A (en) * | 2010-08-19 | 2010-12-01 | 中冶南方工程技术有限公司 | Flat type loop heat pipe |
| CN202329321U (en) * | 2011-12-01 | 2012-07-11 | 中国科学院工程热物理研究所 | Gravity heat pipe with condensing section switching function |
| CN208308465U (en) * | 2017-11-30 | 2019-01-01 | 黄叙然 | A kind of horizontal ammonia water evaporator |
| CN111043894A (en) * | 2018-10-11 | 2020-04-21 | 丹佛斯有限公司 | Pipe assembly and heat exchanger |
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