CN109115016A - A kind of device for realizing enhancing heat transfer - Google Patents
A kind of device for realizing enhancing heat transfer Download PDFInfo
- Publication number
- CN109115016A CN109115016A CN201810797004.5A CN201810797004A CN109115016A CN 109115016 A CN109115016 A CN 109115016A CN 201810797004 A CN201810797004 A CN 201810797004A CN 109115016 A CN109115016 A CN 109115016A
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- heat
- engine operating
- thermal engine
- cylinder
- gas distribution
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention belongs to heat-transfer equipment technical fields, are related to a kind of device for realizing enhancing heat transfer.The device includes annular heat pipe, cylinder, Stirling thermal engine operating, crank, the more annular heat pipes side by side surround to form heat transfer unit (HTU), the bottom end of annular heat pipe described in every is placed on the outer surface of heat-producing device, and top is connected with the top of the cylinder;The cylinder interior is equipped with the Stirling thermal engine operating, the bottom crank arranged below.Using the device of realization enhancing heat transfer of the invention, heat pipe and Stirling thermal engine operating (especially β type Stirling thermal engine operating), heat dissipation of the passive realization to equipment can be utilized.
Description
Technical field
The invention belongs to heat-transfer equipment technical fields, are related to a kind of device for realizing enhancing heat transfer.
Background technique
Under some accident conditions, the compartment in nuclear island factory building can lose ventilation cooling system, but electrical equipment therein
It is still within operating status, this results in the constant temperature of apparatus body and compartment to increase.It needs at this time a kind of passive
Emergency radiator can timely take heat out of after accident generation, and it is comparatively safe to maintain electrical equipment
Temperature.
Heat pipe is a kind of efficient heat transfer element, it can efficiently be passed amount of heat by the area of section of very little
It is defeated, and it is not necessarily to additionaling power.Vapour, liquid phase-change heat transfer of the inside heat pipe mainly by working fluid, thermal resistance very little, therefore heat pipe have
There is very high thermal conductivity.Since the steam of heat pipe inner chamber is in a saturated state, the pressure of saturated vapor determines saturation temperature, saturation
Steam flows to pressure drop very little caused by condensation segment from evaporator section, temperature drop also very little, therefore heat pipe has excellent isothermal.
Stirling thermal engine operating is a kind of external-burning engine, with internal combustion by the way that when gases are heated, they expand, compresses generate power to the cold
It is to obtain heat source from outside unlike machine, mechanical energy output is converted heat energy by working media.Stirling thermal engine operating master
It to be made of components such as heater, cooler, regenerator, power piston, cylinder and transmission mechanisms, working medium is generally hydrogen, helium
Gas, air etc..The circulation of ideal Stirling thermal engine operating is made of two isentropic procedures and two constant volume process.According to number of cylinders
The type of mesh and piston, Stirling thermal engine operating can be divided into three classes (α type, β type, γ type), and three classes pattern is mainly in shape and configuration
On have differences, basic principle is identical.Wherein β type Stirling thermal engine operating small volume, stable drive, be easy to seal.
Summary of the invention
The object of the present invention is to provide a kind of devices for realizing enhancing heat transfer, utilize heat pipe and Stirling thermal engine operating (especially
It is β type Stirling thermal engine operating), the heat dissipation of realization that can be passive to equipment.
In order to achieve this, the present invention provides a kind of device for realizing enhancing heat transfer, described in the embodiment on basis
Device include annular heat pipe, cylinder, Stirling thermal engine operating, crank,
The more annular heat pipes side by side surround to form heat transfer unit (HTU), and the bottom end of annular heat pipe described in every is placed
On the outer surface of heat-producing device, top is connected with the top of the cylinder;
The cylinder interior is equipped with the Stirling thermal engine operating, the bottom crank arranged below.
The inventive system comprises more annular heat pipes placed side by side, heat pipe bottom end is placed on heat-producing device, due to
The surface of heat-producing device is not necessarily smooth, so can change the geometry of heat pipe bottom end as needed, is bonded it as far as possible
The surface of heat-producing device enhances heat transfer effect.Meanwhile a small-sized Stirling thermal engine operating is placed in the annular space that heat pipe is surrounded
It is interior, so that the heat source of Stirling thermal engine operating is mounted on heat pipe top and absorb heat, cold source is contacted with outside ambient air.Working medium gas by
Thermal expansion is compressed to the cold, so that Stirling thermal engine operating be driven to get into smooth.Piston and crank are connected with connecting rod, it is living in this way
Plug can drive crank to operate, and Stirling thermal engine operating is made externally to export energy in the form of shaft work.Two are added at wheel shaft both ends at this time
A small-sized fans, Stirling thermal engine operating drive fan rotation, are further cold source heat dissipation by forced convertion.
The device of the invention is the passive radiator of modular, and when use need to only place it in the table of heat-producing device
Face.In the state that nuclear power plant's compartment cooling system operates normally, heat-producing device surface is in relatively low temperature, dissipates at this time
Thermal does not start;When cooling system breaks down, heat-producing device surface is gradually warmed up, and radiator automatically begins to transport at this time
Row, reduces the surface temperature of heat-producing device, prevents its bring due to temperature is excessively high from damaging.
In a preferred embodiment, the present invention provides a kind of device for realizing enhancing heat transfer, wherein this described
Special woods heat engine is β type Stirling thermal engine operating.
In a preferred embodiment, the present invention provides a kind of device for realizing enhancing heat transfer, wherein the dress
It sets and further includes two universal rotational axis being separately connected with the both ends of the crank and be separately connected with two universal rotational axis
Two fans.
In a preferred embodiment, the present invention provides a kind of device for realizing enhancing heat transfer, wherein this described
Special woods heat engine includes hot chamber, gas distribution piston, gas distribution piston connecting rod, cold chamber, power piston, power piston connecting rod,
The hot chamber is formed between the top of the annular heat pipe and the gas distribution piston below;
The cold chamber is formed between the gas distribution piston and the power piston below;
Connection is pierced by downwards the gas distribution piston connecting rod of the cylinder below the gas distribution piston;
Connection is pierced by downwards the power piston connecting rod of the cylinder below the power piston.
In a kind of more preferred embodiment, the present invention provides a kind of device for realizing enhancing heat transfer, wherein described
Stirling thermal engine operating further include the regenerator that the gas distribution piston edge is set.
In a kind of more preferred embodiment, the present invention provides a kind of device for realizing enhancing heat transfer, wherein described
Device further include that the described cylinder sidewall periphery is set, and the fin being connect with the cold chamber.
The beneficial effects of the present invention are, using the device of realization enhancing heat transfer of the invention, can using heat pipe and this
Special woods heat engine (especially β type Stirling thermal engine operating), heat dissipation of the passive realization to equipment.
Common method in present invention combination heat pipe and two kinds of engineering designs of Stirling thermal engine operating effectively dissipate to heat source
Heat.The common feature of both radiating modes is that radiating efficiency is high, structure type is simple, does not need outside energy input, is met
Passive heat-removal modalities requirement.Therefore, heat pipe is connected by the present invention with heat source, is absorbed using inside heat pipe Working fluid phase changing latent
The heat of a part of heat source is walked in the torrid zone, while the hot cylinder part of the other end of heat pipe and Stirling thermal engine operating being connected, and will be extraneous
Environment is considered as the cold source of Stirling thermal engine operating, is started running by temperature difference driving Stirling thermal engine operating, assigns into heat pipe annular to drive
The fan of space interior further enhances the heat convection between heat pipe and external environment.
Beneficial effects of the present invention are embodied in:
(1) the device of the invention uses passive heat-removal modalities, under conditions of not by outside energy, completes to hair
The cooling of hot equipment;
(2) the device of the invention is effectively utilized the heat that equipment sheds, and it is made to be converted into shaft work, drives fan into one
Step enhances the heat dissipation to equipment;
(3) the device of the invention heat pipe bottom end can be designed to different shapes according to the structural style of heat-producing device, be applicable in
Property is higher;
(4) the device of the invention overall structure is simple, and may be designed as modular structure, is easily installed and replaces
Maintenance.
Detailed description of the invention
Fig. 1 is the composite structural diagram of the device of illustrative realization enhancing heat transfer of the invention.
Fig. 2 is the composed structure of Stirling thermal engine operating in cylinder in the device of illustrative realization enhancing heat transfer of the invention
Figure.
Specific embodiment
A specific embodiment of the invention is further illustrated below in conjunction with attached drawing.
The structure of the device of illustrative realization enhancing heat transfer of the invention is as shown in Figs. 1-2, including annular heat pipe 2, gas
Cylinder 3, Stirling thermal engine operating, fin 9, crank 13, small-sized fans 14, universal rotational axis 15.Wherein Stirling thermal engine operating is β type Stirling
Heat engine, but including hot chamber 4, gas distribution piston 6, gas distribution piston connecting rod 10, cold chamber 5, power piston 7, power piston connecting rod 11,
Regenerator 8.
The more encirclements of annular heat pipe 2 side by side form heat transfer unit (HTU), and the bottom end of every annular heat pipe 2 is placed on electrical equipment
On 1 outer surface (configuration of the bottom end of annular heat pipe 2 can be changed according to the concrete shape of 1 outer surface of electrical equipment, be allowed to
1 surface of electrical equipment is bonded completely, increases heat transfer efficiency), top is connected with the top of cylinder 3.Annular heat pipe 2 is used as Stirling
The heater of heat engine.
One end that annular heat pipe 2 is bonded with 1 surface of electrical equipment is evaporator section, and top on the other side is condensation segment.When
When evaporator section is heated, the working fluid in the liquid-sucking core of annular heat pipe 2 is evaporated to gas after absorbing heat, and gas is in pressure difference
It flows, liquefies after condensation segment discharges heat, and flow back to evaporator section again along tube core to condensation segment under effect.
Stirling thermal engine operating, bottom crank 13 arranged below are housed inside cylinder 3.The both ends of crank 13 are separately connected two ten thousand
To rotation axis 15, two universal rotational axis 15 are separately connected two small-sized fans 14.
Hot chamber 4 is formed between the top of annular heat pipe 2 and gas distribution piston 6 below.Hot chamber 4 is one closed
2 top of annular heat pipe is placed in above the hot chamber 4 of Stirling thermal engine operating when installing cylinder 3, makes annular heat pipe by heating space
2 penetration heat chambers 4 can be served as the external heat source of Stirling thermal engine operating using the heat dissipation capacity of annular heat pipe 2 in this way, pass heat
Pass the gas of closed cycle.
Cold chamber 5 is formed between gas distribution piston 6 and power piston 7 below.Cold chamber 5 is enclosure space.
The gas distribution piston connecting rod 10 for being pierced by cylinder 3 downwards is connected below gas distribution piston 6.
The power piston connecting rod 11 for being pierced by cylinder 3 downwards is connected below power piston 7.
Gas distribution piston 6 and power piston 7 are the critical components of Stirling thermal engine operating, and structure must be light and handy and has enough
Stiffness and strength, to still ensure that piston will not deform in the process of movement while reducing idle work.Together
When its material should have good thermal insulation, avoid as far as possible absorb thermal energy, reduce heat-energy losses.
Regenerator 8 is arranged at 6 edge of gas distribution piston.Regenerator 8 is circulator between hot chamber 4 and cold chamber 5
In important composition component, main function be alternately absorb working medium heat or to its discharge heat, thus auxiliary heater
Heat transmission is carried out to working medium with cooler.It is analyzed from ideal Stirling cycle, regenerator 8 is not indispensable, if examined
Consider the integrally-built complexity of device, regenerator 8 can not be equipped with, and relies on the gap between gas distribution piston 6 and 3 wall of cylinder
Carry out backheat.
The fin 9 connecting with cold chamber 5 is provided in 3 side wall perimeter of cylinder.Cooling of the fin 9 as Stirling thermal engine operating
Device, for reducing the temperature of cold chamber 5, cold source is equivalent to outside ambient air at this time.
The common working medium of Stirling thermal engine operating mainly has helium, hydrogen and air, to improve cycle efficieny, should choose specific heat system
The working medium that number is big, thermal coefficient is high.Hydrogen is most able to satisfy above-mentioned requirements, but due to its combustibility, gives from safety considerations
It excludes, selects heating power ability to be only second to the inert gas helium of hydrogen as cycle fluid herein.
It is expanded after air heats in above-mentioned hot chamber 4, drives the progress of Stirling cycle;Gas distribution piston 6 and power are living
Plug 7 drives crank 13 to rotate in the process of movement, to convert heat into shaft work.In addition universal rotational axis 15 drives small again
Type fan 14 rotates, and further cools down for the cold chamber 5 of Stirling thermal engine operating, to achieve the purpose that improve radiating efficiency.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.If in this way, belonging to the model of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention
Within enclosing, then the present invention is also intended to include these modifications and variations.Above embodiment only illustrates to of the invention
Bright, the present invention can also be implemented with other ad hoc fashions or other particular forms, without departing from the gist of the invention or originally
Matter feature.Therefore, the embodiment of description is regarded as illustrative and non-limiting in any way.Model of the invention
Enclosing should be illustrated by appended claims, and any variation equivalent with the intention and range of claim should also be included in the present invention
In the range of.
Claims (6)
1. a kind of device for realizing enhancing heat transfer, it is characterised in that: the device includes annular heat pipe, cylinder, Stirling heat
Machine, crank,
The more annular heat pipes side by side surround to form heat transfer unit (HTU), and the bottom end of annular heat pipe described in every is placed on hair
On the outer surface of hot equipment, top is connected with the top of the cylinder;
The cylinder interior is equipped with the Stirling thermal engine operating, the bottom crank arranged below.
2. the apparatus according to claim 1, it is characterised in that: the Stirling thermal engine operating is β type Stirling thermal engine operating.
3. the apparatus according to claim 1, it is characterised in that: the device further includes and the both ends of the crank are divided
The two universal rotational axis not connected and two fans being separately connected with two universal rotational axis.
4. the apparatus according to claim 1, it is characterised in that: the Stirling thermal engine operating include hot chamber, gas distribution piston,
Gas distribution piston connecting rod, cold chamber, power piston, power piston connecting rod,
The hot chamber is formed between the top of the annular heat pipe and the gas distribution piston below;
The cold chamber is formed between the gas distribution piston and the power piston below;
Connection is pierced by downwards the gas distribution piston connecting rod of the cylinder below the gas distribution piston;
Connection is pierced by downwards the power piston connecting rod of the cylinder below the power piston.
5. device according to claim 4, it is characterised in that: the Stirling thermal engine operating further includes that described match is arranged in
The regenerator of gas piston ridge.
6. device according to claim 4, it is characterised in that: the device further includes that the cylinder sidewall is arranged in
Periphery, and the fin being connect with the cold chamber.
Priority Applications (1)
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CN201810797004.5A CN109115016A (en) | 2018-07-19 | 2018-07-19 | A kind of device for realizing enhancing heat transfer |
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CN201810797004.5A CN109115016A (en) | 2018-07-19 | 2018-07-19 | A kind of device for realizing enhancing heat transfer |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112985132A (en) * | 2021-03-05 | 2021-06-18 | 太原理工大学 | Gravity heat pipe device for Stirling power generation and forced convection heat dissipation |
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CN205578131U (en) * | 2016-04-28 | 2016-09-14 | 华北电力大学(保定) | Automobile engine auxiliary radiating device based on stirling heat engine |
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CN106128521A (en) * | 2016-06-23 | 2016-11-16 | 中国船舶重工集团公司第七八研究所 | A kind of self-excitation type hydrogen set composite |
CN108278580A (en) * | 2018-03-17 | 2018-07-13 | 四川佳旭能源科技有限公司 | A kind of heat radiating device of road lamp of waste heat driving Stirling engine |
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Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0477018A1 (en) * | 1990-09-20 | 1992-03-25 | Technova Inc. | Apparatus and method for utilizing heat generated owing to Pons-Fleischmann effect |
US20070289300A1 (en) * | 2006-06-15 | 2007-12-20 | Pao-Lung Lin | Heat power device |
CN2926522Y (en) * | 2006-06-22 | 2007-07-25 | 林保龙 | Heat power equipment |
CN202417738U (en) * | 2012-01-18 | 2012-09-05 | 吴育林 | LED (light emitting diode) radiator adopting heat machine for dissipating heat |
KR20160108803A (en) * | 2015-03-07 | 2016-09-20 | 배현규 | Heating device using stirling engine |
CN105307457A (en) * | 2015-09-14 | 2016-02-03 | 联想(北京)有限公司 | Stirling-magnetocaloric united heat dissipation system and electronic device |
CN205578131U (en) * | 2016-04-28 | 2016-09-14 | 华北电力大学(保定) | Automobile engine auxiliary radiating device based on stirling heat engine |
CN106128521A (en) * | 2016-06-23 | 2016-11-16 | 中国船舶重工集团公司第七八研究所 | A kind of self-excitation type hydrogen set composite |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112985132A (en) * | 2021-03-05 | 2021-06-18 | 太原理工大学 | Gravity heat pipe device for Stirling power generation and forced convection heat dissipation |
CN112985132B (en) * | 2021-03-05 | 2022-10-25 | 太原理工大学 | Gravity heat pipe device for Stirling power generation and forced convection heat dissipation |
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