CN111076579A - Alkali metal heat pipe driven by electromagnetic pump and heat transfer method thereof - Google Patents
Alkali metal heat pipe driven by electromagnetic pump and heat transfer method thereof Download PDFInfo
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- CN111076579A CN111076579A CN201911407692.0A CN201911407692A CN111076579A CN 111076579 A CN111076579 A CN 111076579A CN 201911407692 A CN201911407692 A CN 201911407692A CN 111076579 A CN111076579 A CN 111076579A
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- heat pipe
- electromagnetic pump
- heat
- alkali metal
- iron core
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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
- F28D15/025—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 having non-capillary condensate return means
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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
- F28D15/0266—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 separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
Abstract
The invention belongs to the technical field of nuclear reactor engineering heat transfer, and particularly relates to an alkali metal heat pipe driven by an electromagnetic pump in an auxiliary manner and a heat transfer method thereof, wherein the heat transfer method comprises the following steps: the electromagnetic pump is sleeved on the outer surface of the heat pipe 202, and the power supply is connected with the electromagnetic pump; the heat pipe 202 further includes: the heat pipe comprises a heat pipe enclosure 4, a heat pipe liquid absorption core 5, a heat pipe central air cavity 6 and a heat insulation layer 7; the heat pipe jacket 4 is internally provided with a heat pipe central air cavity 6; a heat pipe liquid absorption core 5 is arranged on the outer wall of the heat pipe central air cavity 6; the middle part of the outer part of the heat pipe cladding 4 is provided with a heat preservation layer 7; the electromagnetic pump further comprises: the electromagnetic pump comprises an electromagnetic pump groove, a primary iron core 201, an inner layer iron core 203 and a winding 204; the outer wall of the electromagnetic pump groove is provided with a primary iron core 201 and a winding 204; an inner-layer iron core 203 is fixed at the center of the inner part of the electromagnetic pump groove.
Description
Technical Field
The invention belongs to the technical field of nuclear reactor engineering heat transfer, and particularly relates to an alkali metal heat pipe driven by an electromagnetic pump and a heat transfer method thereof.
Background
The heat pipe is a heat transfer element with high heat conductivity, and a closed heat transfer device without external driving force is provided. The continuous circulation of the working medium is maintained by means of the capillary suction force provided by the inner liquid absorption core, heat is continuously brought from the hot end to the cold end, and the heat-conducting cold-end heat-conducting cold-. Aiming at a horizontal alkali metal heat pipe driven by capillary force or an antigravity alkali metal heat pipe, the method for strengthening the capillary force mainly aims at improving the mesh number of liquid absorbing cores of the heat pipe, but the method for strengthening the reflux driving force by improving the mesh number of the liquid absorbing cores has process limitation in the prior art and has high cost.
The electromagnetic pump is an electromagnetic driving technology, and because liquid metal has good conductivity, when electrified metal liquid passes through a magnetic field, electromagnetic force is generated to push the liquid metal to be directionally transmitted. The electromagnetic pump can realize controllable transmission of flow speed and flow under the condition that liquid metal is completely sealed, and the driving mode has a simple structure, does not have mechanical motion, can stably operate for a long time, and avoids metal oxidation and equipment maintenance.
Therefore, the heat pipe structure using the electromagnetic pump for the alkali metal heat pipe can be designed to drive the liquid metal in the alkali metal heat pipe in a backflow mode, so that the internal circulation capacity of the heat pipe can be enhanced, and the heat transfer capacity is improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an alkali metal heat pipe driven by an electromagnetic pump and a heat transfer method thereof, which are used for solving the structural design defect of the heat pipe in the prior art, such as antigravity or insufficient capillary force driving.
The technical scheme of the invention is as follows:
an alkali metal heat pipe driven by an electromagnetic pump, comprising: the electromagnetic pump is sleeved on the outer surface of the heat pipe 202, and the power supply is connected with the electromagnetic pump; the heat pipe 202 further includes: the heat pipe comprises a heat pipe enclosure 4, a heat pipe liquid absorption core 5, a heat pipe central air cavity 6 and a heat insulation layer 7; the heat pipe jacket 4 is internally provided with a heat pipe central air cavity 6; a heat pipe liquid absorption core 5 is arranged on the outer wall of the heat pipe central air cavity 6; the middle part of the outer part of the heat pipe cladding 4 is provided with a heat preservation layer 7; the electromagnetic pump further comprises: the electromagnetic pump comprises an electromagnetic pump groove, a primary iron core 201, an inner layer iron core 203 and a winding 204; the outer wall of the electromagnetic pump groove is provided with a primary iron core 201 and a winding 204; an inner-layer iron core 203 is fixed at the center of the inner part of the electromagnetic pump groove.
The two ends of the heat pipe 202 are respectively a heat pipe evaporation section 1 and a heat pipe condensation section 3; the middle end of the heat pipe 202 is a heat pipe insulation section 2.
The whole high frequency electromagnetic pump that is hollow cylindrical structure of electromagnetic pump, the electromagnetic pump slot is cylindrical structure, and the clearance distance and the heat pipe 202 external diameter size phase-match of electromagnetic pump slot inner wall and inlayer iron core 203 outer wall.
And an electromagnetic pump is sleeved on the heat pipe heat insulation section 2 or the heat pipe condensation section 3 to perform auxiliary driving.
A single heat pipe or a plurality of heat pipes 202 can be arranged in the electromagnetic pump groove, and the plurality of heat pipes 202 are annularly arranged in the electromagnetic pump groove.
Three-phase alternating current is introduced into the winding 204, and the wiring mode of the winding 204 is a three-phase four-wire Y-shaped connection method.
The heat pipe 202 is an alkali metal heat pipe, and the heat pipe 202 is made of the following materials: sodium, potassium, lithium, sodium potassium alloys.
The heat transfer method of the alkali metal heat pipe driven by the electromagnetic pump comprises the following steps:
the method comprises the following steps: placing a heat pipe 202 in a groove of an electromagnetic pump, wherein the electromagnetic pump can be loaded on a heat pipe heat insulation section and also can be loaded on a heat pipe condensation section;
step two: turning on a power supply, and driving an electromagnetic pump to drive the metal liquid in the heat pipe to flow back;
step three: the electromagnetic pump adopts high frequency, and utilizes the skin effect of an electromagnetic field to enable the electromagnetic field to have certain skin depth and act on the metal liquid near the wall of the heat pipe, so that the influence on the flow of the metal gas in the center of the heat pipe is weakened; a single heat pipe or a plurality of heat pipes can be arranged in a pump groove of the electromagnetic pump for liquid auxiliary backflow.
The invention has the beneficial effects that:
the invention relates to an alkali metal heat pipe driven by an electromagnetic pump in an auxiliary way and a heat transfer method thereof. The primary winding is connected with three-phase alternating current in a three-phase four-wire Y-shaped connection mode. Further, the electromagnetic pump can be loaded on the heat pipe heat insulation section and also can be loaded on the heat pipe condensation section. A single heat pipe and a plurality of heat pipes can be arranged in a pump groove of the electromagnetic pump to carry out liquid auxiliary backflow. The heat pipe is an alkali metal heat pipe, and the working medium can be sodium, potassium, lithium, sodium-potassium alloy and the like.
The alkali metal heat pipe driven by the electromagnetic pump in an auxiliary mode is characterized in that the metal reflux capacity in the alkali metal heat pipe is enhanced by the electromagnetic pump, so that the internal circulation capacity of the heat pipe can be enhanced by a reactor, and the heat transfer capacity is improved.
Drawings
FIG. 1 is a schematic diagram illustrating the working principle of an alkali metal heat pipe driven by an electromagnetic pump;
FIG. 2 is a schematic diagram of the operation of a single heat pipe using an alkali metal heat pipe driven by an electromagnetic pump
FIG. 3 is a schematic diagram of the operation of a plurality of heat pipes using an alkali metal heat pipe driven by an electromagnetic pump according to the present invention;
FIG. 4 is a top view of a plurality of heat pipes arranged in an alkali metal heat pipe driven by an electromagnetic pump in accordance with the present invention
In the figure: 1-heat pipe evaporation section, 2-heat pipe heat insulation section, 3-heat pipe condensation section, 4-heat pipe jacket, 5-heat pipe liquid suction core, 6-heat pipe central air cavity, 7-heat preservation layer, 201-primary iron core, 202-heat pipe, 203-inner layer iron core, 204-winding.
Detailed Description
The invention will be further described with reference to the following figures and examples:
an alkali metal heat pipe driven by an electromagnetic pump, comprising: the electromagnetic pump is sleeved on the outer surface of the heat pipe 202, and the power supply is connected with the electromagnetic pump; the heat pipe 202 further includes: the heat pipe comprises a heat pipe enclosure 4, a heat pipe liquid absorption core 5, a heat pipe central air cavity 6 and a heat insulation layer 7; the heat pipe jacket 4 is internally provided with a heat pipe central air cavity 6; a heat pipe liquid absorption core 5 is arranged on the outer wall of the heat pipe central air cavity 6; the middle part of the outer part of the heat pipe cladding 4 is provided with a heat preservation layer 7; the electromagnetic pump further comprises: the electromagnetic pump comprises an electromagnetic pump groove, a primary iron core 201, an inner layer iron core 203 and a winding 204; the outer wall of the electromagnetic pump groove is provided with a primary iron core 201 and a winding 204; an inner-layer iron core 203 is fixed at the center of the inner part of the electromagnetic pump groove.
The two ends of the heat pipe 202 are respectively a heat pipe evaporation section 1 and a heat pipe condensation section 3; the middle end of the heat pipe 202 is a heat pipe insulation section 2.
The whole high frequency electromagnetic pump that is hollow cylindrical structure of electromagnetic pump, the electromagnetic pump slot is cylindrical structure, and the clearance distance and the heat pipe 202 external diameter size phase-match of electromagnetic pump slot inner wall and inlayer iron core 203 outer wall.
And an electromagnetic pump is sleeved on the heat pipe heat insulation section 2 or the heat pipe condensation section 3 to perform auxiliary driving.
A single heat pipe or a plurality of heat pipes 202 can be arranged in the electromagnetic pump groove, and the plurality of heat pipes 202 are annularly arranged in the electromagnetic pump groove.
Three-phase alternating current is introduced into the winding 204, and the wiring mode of the winding 204 is a three-phase four-wire Y-shaped connection method.
The heat pipe 202 is an alkali metal heat pipe, and the heat pipe 202 is made of the following materials: sodium, potassium, lithium, sodium potassium alloys.
The heat transfer method of the alkali metal heat pipe driven by the electromagnetic pump comprises the following steps:
the method comprises the following steps: placing a heat pipe 202 in a groove of an electromagnetic pump, wherein the electromagnetic pump can be loaded on a heat pipe heat insulation section and also can be loaded on a heat pipe condensation section;
step two: turning on a power supply, and driving an electromagnetic pump to drive the metal liquid in the heat pipe to flow back;
step three: the electromagnetic pump adopts high frequency, and utilizes the skin effect of an electromagnetic field to enable the electromagnetic field to have certain skin depth and act on the metal liquid near the wall of the heat pipe, so that the influence on the flow of the metal gas in the center of the heat pipe is weakened; a single heat pipe or a plurality of heat pipes can be arranged in a pump groove of the electromagnetic pump for liquid auxiliary backflow.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents within the spirit and principle of the invention should be included in the scope of the invention.
Claims (8)
1. An alkali metal heat pipe driven by an electromagnetic pump in an auxiliary manner is characterized by comprising: the electromagnetic pump is sleeved on the outer surface of the heat pipe (202) in a ring mode, and the power supply is connected with the electromagnetic pump; the heat pipe (202) further comprises: the heat pipe comprises a heat pipe enclosure (4), a heat pipe liquid absorption core (5), a heat pipe central air cavity (6) and a heat insulation layer (7); the heat pipe jacket (4) is internally provided with a heat pipe central air cavity (6); a heat pipe liquid absorption core (5) is arranged on the outer wall of the heat pipe central air cavity (6); the middle part of the outer part of the heat pipe cladding (4) is provided with a heat preservation layer (7); the electromagnetic pump further comprises: the electromagnetic pump comprises an electromagnetic pump groove, a primary iron core (201), an inner layer iron core (203) and a winding (204); the outer wall of the electromagnetic pump groove is provided with a primary iron core (201) and a winding (204); and an inner-layer iron core (203) is fixed at the center of the inner part of the electromagnetic pump groove.
2. An alkali metal heat pipe using an auxiliary drive of an electromagnetic pump as claimed in claim 1, wherein: the two ends of the heat pipe (202) are respectively a heat pipe evaporation section (1) and a heat pipe condensation section (3); the middle end of the heat pipe (202) is a heat pipe heat insulation section (2).
3. An alkali metal heat pipe using an auxiliary drive of an electromagnetic pump as claimed in claim 2, wherein: the whole high frequency electromagnetic pump that is hollow cylindrical structure of electromagnetic pump, the electromagnetic pump slot is cylindrical structure, and the clearance distance of electromagnetic pump slot inner wall and inlayer iron core (203) outer wall matches with heat pipe (202) external diameter size.
4. An alkali metal heat pipe using an auxiliary drive of an electromagnetic pump as claimed in claim 3, wherein: and an electromagnetic pump is sleeved on the heat pipe heat insulation section (2) or the heat pipe condensation section (3) in a surrounding manner for auxiliary driving.
5. An alkali metal heat pipe using an auxiliary drive of an electromagnetic pump as set forth in claim 4, wherein: a single heat pipe or a plurality of heat pipes (202) can be arranged in the electromagnetic pump groove, and the plurality of heat pipes (202) are annularly arranged in the electromagnetic pump groove.
6. An alkali metal heat pipe using an auxiliary drive of an electromagnetic pump as claimed in claim 5, wherein: three-phase alternating current is introduced into the winding (204), and the wiring mode of the winding (204) is a three-phase four-wire Y-shaped connection method.
7. An alkali metal heat pipe using an auxiliary drive of an electromagnetic pump as claimed in claim 6, wherein: the heat pipe (202) is an alkali metal heat pipe, and the heat pipe (202) is made of the following materials: sodium, potassium, lithium, sodium potassium alloys.
8. A heat transfer method using an alkali metal heat pipe assisted by an electromagnetic pump as claimed in any one of claims 1 to 7, characterized by comprising the steps of:
the method comprises the following steps: placing a heat pipe (202) in a groove of an electromagnetic pump, wherein the electromagnetic pump can be loaded on a heat pipe heat insulation section and also can be loaded on a heat pipe condensation section;
step two: turning on a power supply, and driving an electromagnetic pump to drive the metal liquid in the heat pipe to flow back;
step three: the electromagnetic pump adopts high frequency, and utilizes the skin effect of an electromagnetic field to enable the electromagnetic field to have certain skin depth and act on the metal liquid near the wall of the heat pipe, so that the influence on the flow of the metal gas in the center of the heat pipe is weakened; a single heat pipe or a plurality of heat pipes can be arranged in a pump groove of the electromagnetic pump for liquid auxiliary backflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911407692.0A CN111076579B (en) | 2019-12-31 | 2019-12-31 | Alkali metal heat pipe driven by electromagnetic pump and heat transfer method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911407692.0A CN111076579B (en) | 2019-12-31 | 2019-12-31 | Alkali metal heat pipe driven by electromagnetic pump and heat transfer method thereof |
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| Publication Number | Publication Date |
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| CN111076579A true CN111076579A (en) | 2020-04-28 |
| CN111076579B CN111076579B (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911407692.0A Active CN111076579B (en) | 2019-12-31 | 2019-12-31 | Alkali metal heat pipe driven by electromagnetic pump and heat transfer method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03262996A (en) * | 1990-03-14 | 1991-11-22 | Kawasaki Heavy Ind Ltd | External tube breakage detecting method for double tube vapor generator |
| US5094803A (en) * | 1989-05-23 | 1992-03-10 | Kabushiki Kaisha Toshiba | Steam generator |
| TW200530547A (en) * | 2004-03-12 | 2005-09-16 | Nanocoolers Inc | Cooling of high power density devices by electrically conducting fluids |
| CN201550008U (en) * | 2009-09-30 | 2010-08-11 | 石家庄爱迪尔电气有限公司 | Liquid metal transmission electromagnetic pump with outer core |
| CN106016213A (en) * | 2016-07-28 | 2016-10-12 | 云南中宣液态金属科技有限公司 | Solar boiler adopting molten metal as heat-transfer medium and using method thereof |
| CN109742976A (en) * | 2018-12-26 | 2019-05-10 | 西安交通大学 | A kind of static temperature difference electricity generation device based on high-temperature heat pipe heat transfer |
-
2019
- 2019-12-31 CN CN201911407692.0A patent/CN111076579B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094803A (en) * | 1989-05-23 | 1992-03-10 | Kabushiki Kaisha Toshiba | Steam generator |
| JPH03262996A (en) * | 1990-03-14 | 1991-11-22 | Kawasaki Heavy Ind Ltd | External tube breakage detecting method for double tube vapor generator |
| TW200530547A (en) * | 2004-03-12 | 2005-09-16 | Nanocoolers Inc | Cooling of high power density devices by electrically conducting fluids |
| CN201550008U (en) * | 2009-09-30 | 2010-08-11 | 石家庄爱迪尔电气有限公司 | Liquid metal transmission electromagnetic pump with outer core |
| CN106016213A (en) * | 2016-07-28 | 2016-10-12 | 云南中宣液态金属科技有限公司 | Solar boiler adopting molten metal as heat-transfer medium and using method thereof |
| CN109742976A (en) * | 2018-12-26 | 2019-05-10 | 西安交通大学 | A kind of static temperature difference electricity generation device based on high-temperature heat pipe heat transfer |
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| CN111076579B (en) | 2021-06-22 |
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