CN211782940U - Liquid metal rotary heat exchanger - Google Patents
Liquid metal rotary heat exchanger Download PDFInfo
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- CN211782940U CN211782940U CN201922190455.5U CN201922190455U CN211782940U CN 211782940 U CN211782940 U CN 211782940U CN 201922190455 U CN201922190455 U CN 201922190455U CN 211782940 U CN211782940 U CN 211782940U
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Abstract
The utility model discloses a liquid metal rotary heat exchanger, include, the high heat conduction shell body sets up the inside rotor assembly body of high heat conduction shell body sets up current generator in the rotor assembly body, be provided with the multi-disc on the rotor in the rotor assembly body and change the tile, increased heat transfer area, adopt liquid metal as heat exchange medium, not only can effectively drive under the electric field effect that current generator produced the flow of liquid metal coolant liquid in the passageway, it still can effectively reduce the surface tension of liquid metal coolant liquid strengthens its wetting characteristic to reduce liquid metal and change the lifting of heat exchanger heat transfer rate between the tile. Meanwhile, as the heat exchange occurs in the rotating process of the rotor, the heat exchange does not influence the relative rotation of the rotor, and the heat exchange is realized in the rotating process.
Description
Technical Field
The utility model relates to a heat exchanger technical field, in particular to liquid metal rotary heat exchanger.
Background
Most of the existing heat exchangers do not transmit the motion process in the heat exchange process, so that the heat exchangers cannot be suitable for the heat exchange of rotary machinery. Meanwhile, the heat exchange medium suitable for the rotary heat exchanger in the prior art is mostly gas, the heat exchange efficiency is low, the structure is also complex, and the rotary heat exchanger is not beneficial to series production.
Thus, there is a need for improvement and improvement in the art.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of above-mentioned prior art, the utility model aims at providing a liquid metal rotary heat exchanger, aim at solving current heat exchanger structure complicacy, problem that heat exchange efficiency is low.
The technical scheme of the utility model as follows:
a liquid metal rotary heat exchanger, comprising:
an outer housing;
a rotor assembly disposed inside the housing; the rotor assembly comprises two oppositely arranged rotors; the rotor comprises a rotor body, wherein a first channel for liquid metal to enter and exit the rotor assembly body is formed in the middle of the rotor body, a flow channel is arranged at one end of the first channel, a current generator for generating an electric field is arranged on the flow channel, and a plurality of turning tiles are arranged at the other end of the first channel; and
the end cover is arranged at the end part of the shell body and used for plugging the shell.
Optionally, the liquid metal rotary heat exchanger, wherein the plurality of rotating tiles are arranged around the first channel in a circular ring shape.
Optionally, the liquid metal rotary heat exchanger is provided with 2 to 6 areas on an end surface where the first channel is located, the plurality of rotating tiles are arranged in the areas in a fan shape, and any two adjacent rotating tiles are not connected with each other.
Optionally, the liquid metal rotary heat exchanger, wherein a first groove is provided on an end surface of the end cover close to the outer shell, and a first sealing element is provided in the first groove.
Optionally, the liquid metal rotary heat exchanger is provided with a rotating member sleeved on the flow channel.
Optionally, the liquid metal rotary heat exchanger is provided with a second groove for accommodating the rotating member.
Optionally, the liquid metal rotary heat exchanger further includes a third groove disposed in the second groove, and a second sealing member is disposed in the third groove.
Optionally, the liquid metal rotary heat exchanger further includes a heating layer disposed on an outer surface of the outer casing and a heat insulating layer disposed on a surface of the heating layer.
Optionally, the liquid metal rotary heat exchanger, wherein the rotor is made of a heat conducting material.
Optionally, the liquid metal rotary heat exchanger, wherein the liquid metal is any one of a gallium alloy, an indium alloy, a gallium indium alloy, and a gallium indium tin alloy.
Has the advantages that: the utility model provides a liquid metal rotary heat exchanger, include, high heat conduction shell body sets up the inside rotor assembly body of high heat conduction shell body, be provided with the multi-disc on the rotor in the rotor assembly body and change the tile, increased heat transfer area, adopt liquid metal as the heat exchange medium of heat transfer in-process simultaneously, liquid metal has the heat flow effect under the produced electric field effect of current generator, low surface tension, and wetting characteristic is strong, the little characteristic of flow resistance to can realize heat exchanger heat exchange efficiency's promotion. The liquid metal rotary heat exchanger provided by the utility model has simple structure, compact design, relative independence of each part, and convenient maintenance and overhaul; the system has good interchangeability, and can realize modularization, serialization and rapid design; has no special requirements for working environment and can adapt to various special environments.
Drawings
Fig. 1 is a perspective view of the liquid metal rotary heat exchanger provided by the present invention.
Fig. 2 is a quarter-turn cross-sectional view of the liquid metal rotary heat exchanger provided by the present invention.
Fig. 3 is an exploded view of the liquid metal rotary heat exchanger according to the present invention.
Fig. 4 is a quarter-turn sectional view of the first rotor.
Fig. 5 is a first perspective structural diagram of the first rotor.
Fig. 6 is a cross-sectional view of an end cover of the liquid metal rotary heat exchanger provided by the present invention.
Detailed Description
The utility model provides a liquid metal rotary heat exchanger. In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connect" or "connect" as used herein includes both direct and indirect connections (connections), unless otherwise specified. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-2, a liquid metal rotary heat exchanger 1 includes an outer casing 10, a rotor assembly 20 and end caps 30, wherein the rotor assembly 20 is disposed inside the outer casing 10, the rotor assembly 20 is provided with a current generator 40, and the end caps 30 are disposed at two ends of the outer casing 10 and used for plugging the outer casing 10.
Specifically, the outer casing 10 is mainly used as an external fixing member and a supporting member of the liquid metal rotary heat exchanger 1, and is made of a high thermal conductive material, such as copper, aluminum, and the like. The shape of the outer housing 10 may be cylindrical or other shape. A heating layer (hot flow layer) 11 is disposed on the outer surface of the outer housing 10, and a heat insulating layer 12 is disposed on the outer surface of the heating layer 11. The heat on heating layer 11 is conducted through outer housing 10 to the interior of rotor assembly 20. The thermal insulation layer 12 is used for blocking heat on the heating layer 11 to conduct outwards, the length of the heating layer 11 in the axial direction is smaller than that of the outer shell 10 in the axial direction, and the length of the outer shell 10 in the axial direction is smaller than that of the thermal insulation layer 12 in the axial direction.
In this embodiment, heat rotor assembly 20 through zone of heating 11 to liquid metal is as the heat exchange medium of heat transfer in-process, and the electric field effect that produces through current generator 40 not only can effectively drive liquid metal coolant liquid flows between the commentaries on classics tile, and it still can effectively reduce the surface tension of liquid metal coolant liquid strengthens its wetting characteristic, thereby reduces the flow resistance of liquid metal, realizes the promotion of heat exchanger heat exchange efficiency. Because the liquid metal does not influence the mutual rotation of the rotors when absorbing heat, the heat exchange can be realized in the rotating process.
In this embodiment, the commonly used liquid metal includes gallium alloy, indium alloy, gallium indium tin alloy, etc., and may be a single liquid metal as a heat exchange substance, or a mixed liquid of the liquid metal and a conductive solute as a heat exchange substance, such as conductive oil, a salt solution, sodium hydroxide, etc.
In one or more embodiments, as shown in fig. 3 and 4, the rotor assembly 20 is a core structure of a rotary heat exchanger, which is built inside the outer casing 10, and is mainly used for realizing relative rotation of two rotors and exchanging heat during the rotation.
Specifically, the rotor assembly 20 includes a first rotor 21 and a second rotor 22, where the first rotor 21 and the second rotor 22 each include a rotor body 210, a side wall 2101 is disposed around one side of the rotor body 210, and a first channel 211 is disposed at a middle position of the rotor body 210, where the first channel 211 may be a circular through hole or a square through hole. Typically, the rotor body 210 is circular and the sidewall 2101 is cylindrical. A flow channel 230240 for flowing liquid metal is disposed at one end of the first channel 211, and a rotating member 250(260) is sleeved on an outer surface of the flow channel 230(240), and may be a bearing or another component capable of rotating. The rotating member 250(260) is sleeved on the flow channel 230(240) and contacts with the rotor body 210 (220).
Further, the rotor 21(22) further comprises a plurality of turning tiles 270(280) disposed at the other end of the first channel 211, that is, the plurality of turning tiles 270(280) are disposed inside the sidewall 2101.
In the present embodiment, the first rotor 21 and the second rotor 22 are made of a high thermal conductive material. In order to achieve high thermal conductivity of the rotor, a coating or plating of a highly thermally conductive material may also be provided on the surface of the rotor. The preparation of the coating or plating layer of the high thermal conductivity material involved therein is prior art and will not be described herein again.
It can be understood that the relative arrangement in the present invention means that the two ends of the two rotors provided with the rotating tiles are inward, and the two ends of the two rotors provided with the flow passages are outward. On the premise of not influencing the relative rotation of the rotors, the rotating shoes on the two rotors can be in contact with each other or can be not in contact with each other, namely, a certain distance is reserved between the rotating shoes.
In this embodiment, the plurality of turning tiles 270(280) are arranged around the first channel 211 in a circular ring shape. For example, if there are n tiles, the n tiles may be arranged around the first channel 211 from the inside to the outside one circle around the center of the first channel 211. The width of the tiles is gradually increased from inside to outside.
Further, with reference to fig. 5, the rotor body 210 may be divided into 2 regions, 3 regions, 4 regions, 5 regions, 6 regions, etc. Taking the division into 6 regions as an example, namely, the bottom of the rotor body 210 is evenly divided into 6 sector regions, marked as a1, a2, A3, a4, a5 and a6, 5 turning tiles are arranged in each sector region, the 5 turning tiles are arranged in sequence from inside to outside, and the width and the height of the tiles located in the same radius are the same, but may also be different. For example, the width of the tile can be reduced or increased in a certain proportion, and the height can be adjusted in the same way. The regions A1-A6 are all spaced apart, and a gap is reserved between two adjacent turning tiles in each region, and cooling liquid can pass through the gap.
In this embodiment, referring to fig. 6, the end cap 30(31) is generally circular, the material used is an insulator, the middle portion of the end cap 30(31) is provided with a second channel 310, the shape of the second channel 310 is matched with the shape of the flow channel 230(240), and the shape of the second channel 310 is circular because the flow channel 230(240) is circular. During assembly, the end caps 30(31) are inserted through the flow passages 230(240) to be closely attached to the end portions of the outer housing 10, so that the outer housing 10 is sealed and the cooling liquid in the rotor assembly 20 is prevented from leaking. Generally, in order to obtain better sealing effect, a first groove 330 may be formed on the end surface of the inner side of the outer edge of the end cover 30(31) near the opening of the outer shell 10, and a first sealing member 331(341) is disposed in the first groove 330, and the first sealing member 331(341) is a sealing ring.
Further, a second groove 350 for accommodating the rotating member 250(260) is provided on the end surface of the second channel 310 close to the outer housing 10, and in order to prevent the coolant from leaking out of the second channel 310, a third groove 370 is provided in the second groove 350, and a second sealing member 371(381) is provided in the third groove 370. The second sealing element 371(381) is a sealing ring.
The utility model provides a liquid metal rotary heat exchanger can be used to on the rotating machinery commonly used, like steam turbine, compressor, hydraulic turbine, pump, gas turbine, fan, aeroengine, mixer etc..
To sum up, the utility model provides a liquid metal rotary heat exchanger. The rotary heat exchanger includes: the high-heat-conduction shell comprises a high-heat-conduction shell body, a heating layer and a heat insulation layer, wherein the heating layer is arranged on the outer surface of the high-heat-conduction shell body; a rotor assembly disposed inside the housing; the rotor assembly comprises two oppositely arranged rotors; the rotor comprises a rotor body, wherein a first channel for liquid metal to enter and exit the rotor assembly body is formed in the middle of the rotor body, a flow channel is arranged at one end of the first channel, a current generator for generating an electric field is arranged on the flow channel, and a plurality of turning tiles are arranged at the other end of the first channel; and the end covers are respectively arranged at two ends of the outer shell, second channels are arranged on the end covers, the flow channel penetrates through the second channels and is exposed outside the end covers, and the outer shell is blocked through the end covers. The rotor in the rotor assembly body is provided with the plurality of rotating tiles, so that the heat exchange area is increased, and meanwhile, liquid metal is used as a heat exchange medium, so that the liquid metal can be effectively driven to flow in a channel under the action of an electric field, the surface tension of liquid metal cooling liquid can be effectively reduced, the wetting characteristic of the liquid metal cooling liquid is enhanced, the flow resistance of the liquid metal is reduced, and the heat exchange rate of the heat exchanger is improved. Meanwhile, as the heat exchange occurs in the rotating process of the rotor, the heat exchange does not influence the relative rotation of the rotor, and the heat exchange is realized in the rotating process. The liquid metal rotary heat exchanger provided by the utility model has simple structure, compact design, relative independence of each part, and convenient maintenance and overhaul; the system has good interchangeability, and can realize modularization, serialization and rapid design; has no special requirements for working environment and can adapt to various special environments.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (7)
1. A liquid metal rotary heat exchanger, comprising:
an outer housing;
a rotor assembly disposed inside the housing; the rotor assembly comprises two oppositely arranged rotors; the rotor comprises a rotor body, wherein a first channel for liquid metal to enter and exit the rotor assembly body is formed in the middle of the rotor body, a flow channel is arranged at one end of the first channel, a current generator for generating an electric field is arranged on the flow channel, and a plurality of turning tiles are arranged at the other end of the first channel; and
the end cover is arranged at the end part of the outer shell and used for plugging the outer shell.
2. A liquid metal rotary heat exchanger according to claim 1, wherein the plurality of tiles are arranged in a circular ring around the first channel.
3. A liquid metal rotary heat exchanger according to any one of claims 1-2, wherein a first groove is provided in an end face of the end cap adjacent the outer shell, and a first seal is provided in the first groove.
4. A liquid metal rotary heat exchanger as claimed in claim 1, wherein the flow passages are sleeved with rotating members.
5. A liquid metal rotary heat exchanger according to claim 4, wherein the end cap is provided with a second recess to receive the rotary member.
6. A liquid metal rotary heat exchanger according to claim 5, wherein a third groove is further provided in the second groove, and a second seal is provided in the third groove.
7. The liquid metal rotary heat exchanger of claim 1, further comprising a heating layer disposed on an outer surface of the outer housing and a thermal insulation layer disposed on a surface of the heating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922190455.5U CN211782940U (en) | 2019-12-09 | 2019-12-09 | Liquid metal rotary heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922190455.5U CN211782940U (en) | 2019-12-09 | 2019-12-09 | Liquid metal rotary heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN211782940U true CN211782940U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922190455.5U Active CN211782940U (en) | 2019-12-09 | 2019-12-09 | Liquid metal rotary heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059935A (en) * | 2019-12-09 | 2020-04-24 | 南方科技大学 | Liquid metal rotary heat exchanger |
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2019
- 2019-12-09 CN CN201922190455.5U patent/CN211782940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059935A (en) * | 2019-12-09 | 2020-04-24 | 南方科技大学 | Liquid metal rotary heat exchanger |
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