CN205940240U - Heat radiation device is held in flat plate heat pipe and phase transition - Google Patents
Heat radiation device is held in flat plate heat pipe and phase transition Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The utility model provides a heat radiation device is held in flat plate heat pipe and phase transition. Wherein, flat plate heat pipe includes inside and outside curb plate and grid, the inner wall fixed connection of grid and inside and outside curb plate, and with the chamber that a plurality of mutual intercommunications are separated into to the flat plate heat pipe inner chamber, the inner wall of inside and outside curb plate is equipped with a plurality of archs, forms the recess between adjacent arch or grid and the arch. Heat radiation device is held in the phase transition, includes: exchange device, water pipe, box, wherein, exchange device fixes inside the box, exchange device and water pipe fixed connection, and the tip of water pipe stretches out the box, wherein, the water pipe includes upper and lower water pipe, and upper hose fixed mounting is on exchange device upper portion, and downcomer fixed mounting is in the exchange device lower part, fill to have between box and the exchange device and hold exothermic medium.
Description
Technical field
This utility model is related to a kind of heat dissipation element and its application, especially a kind of flat-plate heat pipe and use this flat-plate heat pipe
The phase transformation made stores heat-releasing device.
Background technology
At present, for the purpose of energy-saving and emission-reduction and environmental protection, making full use of of conventional energy resource is of great interest, heat storage technology
It is to improve one of important channel of efficiency of energy utilization and environmental protection.This technology is mainly used in storage of solar energy, electric power " is cut
The fields such as the recovery of peak load ", industrial waste heat and waste heat.Heat storage type is broadly divided into sensible heat accumulation of heat, latent-heat storage and chemistry and stores
Heat.Wherein latent-heat storage, i.e. phase-transition heat-storage, have the advantages that thermal storage density is big, temperature change is little, be easily controlled, extensively should
For in all kinds of researchs and engineering.
In phase-transition heat-storage mode, whether efficiently to evaluate a set of hold over system, do not require nothing more than and can quickly finish energy
Storage and release, should be the minimum consumption as far as possible ensureing on the premise of meeting this requirement to secondary energy sources.Phase transformation is stored up
The skeleton of energy technology is hold over system structure, and for now, most of hold over system is mainly with coil pipe for main heat exchange
Structure, volume is big, resistance is big, high cost, because coil pipe caliber is little, elbow is many, pipeline length cause that resistance is big, hot property raising
Inconspicuous, so the structure optimizing hold over system is also the direction that people are attempting always and exploring.
The another aspect of phase change energy storage technology research is phase change heat storage material, at present, most inorganic phase-changing material tools
It is corrosive and supercool and problem of phase separation can occur in phase transition process, seriously limit its extensive application in the industry, and
Organic phase change material has the advantages that corrosivity are little, there almost do not have in phase transition process to be supercool and separated, and stable chemical performance,
Low price, therefore, in fields such as peak load cutting, industrial afterheat recovery, Solar use, building energy conservations, application is more
It is widely organic phase change material.But the low shortcoming of organic phase change material generally existing heat conductivity is so as in energy-storage system
In application, heat transfer property is poor, amount of stored heat utilization rate is low, thus reducing the efficiency of system.
Utility model content
This utility model provides one kind to be easy to molding, compact conformation, on-deformable flat-plate heat pipe.
Flat-plate heat pipe described in the utility model includes inside and outside side plate qualifying grid, and the inwall of grid and inside and outside side plate is fixed
Connect, flat-plate heat pipe inner chamber is separated into multiple chambeies being interconnected, the inwall of inside and outside side plate is provided with multiple projections, adjacent convex
Rise or grid and projection between formed groove.
Preferably, described projection is semi-cylindrical or described groove is semi-cylindrical, and flat-plate heat pipe structure is more stable, no
Yielding.
Preferably, flat-plate heat pipe is aluminum, adopts to be constructed of aluminum and is easy to one extrusion molding, has light and handy, arrangement is compact etc.
Advantage, more need not weld, and decrease operation, and cost reduces further.
Preferably, left plate, right side plate thickness are 2-3mm, and due to having grid, left plate, right side plate thickness are reduced to
2-3mm remains to keep good and is unlikely to deform characteristic, and significantly reduces cost.
Flat-plate heat pipe of the present utility model is provided with multiple projections due to left and right side plate inwall, and grid with left and right
Side plate inwall is fixedly connected, and raised and grid all serves the effect of reinforcement, so that heat pipe pressure-bearing is very capable, up to
5Mpa.
Above-mentioned flat-plate heat pipe manufacture method is as follows：
The first step, is crushed to flat tube using extrusion process through mould；
Second step, by flat tube one end closure；
3rd step, flat tube is connected with pumped vacuum systems, is evacuated to 10 through molecular pump-4Pa；Pumped vacuum systems is by true
Csa molecule pump, three-way valve, tube for transfusion with a scale forms；
4th step, swivel tee valve, close vacuum-pumping pipeline, liquid is poured in flat tube；
5th step, closes three-way valve, flat tube is sealed.
Flat-plate heat pipe of the present utility model is tested through key property and is found, it possesses excellent isothermal (1K/m) and very strong
Thermal-arrest ability, thermal response time short (within 5s).Heat pipe thickness is only 2-3mm, so that heat collector is more compact, light,
Cheap.Inside heat pipe bearing capacity can reach more than 10MPa, and maximum heat flow density is up to 100W/cm2.
Flat-plate heat pipe of the present utility model has following prominent advantage in terms of heat transfer：High-termal conductivity, excellent etc.
Warm nature, heat density transmutability, the reversibility of direction of heat flow, constant temperature uniform temperature, source can be made to converge separately, not mutual between cold fluid and hot fluid
The temperature range mix, adapting to and environmental field are wide.
This utility model also provides a kind of phase transformation to store heat-releasing device, including：Switch, water pipe, casing；Wherein, exchange
Device is fixed on box house, and switch is fixedly connected with water pipe, and casing is stretched out in the end of water pipe；Wherein, water pipe include,
Downcomer, upper hose is fixedly mounted on switch top, and downcomer is fixedly mounted on switch bottom；Casing and exchange dress
It is filled with storage exothermic medium (phase-change material) between putting.After between switch, water pipe and casing, filling stores exothermic medium, improve
Store exothermal effect.
Preferably, described storage exothermic medium is natural paraffin wax, natural paraffin wax as heat storage medium, stable performance, pollution-free,
No discharge, store heat release stable.
Preferably, the cuboid that described casing is made for steel plate, has cover plate and multiple side plate, be easily installed, dismantle or
Place
Preferably, side plate is flexibly connected, easy to disassemble.
Preferably, water pipe end stretches out the position of casing, adopts rubber extruded formula to seal between water pipe and casing.
Preferably, casing has external thermal insulation, and described external thermal insulation adopts polyurethane foam to process.
Preferably, described switch includes：Fin, flat-plate heat pipe；Multiple fins arranged in parallel vertically fixedly mount
Outer surface in flat board hot plate outer panel；The interior plate of flat board hot plate and water pipe tightly hold；The top of flat board hot plate is cold
Solidifying section, bottom are evaporator section；Upper hose is fixedly mounted on condensation segment, and downcomer is fixedly mounted on evaporation pars infrasegmentalis.
It is highly preferred that water pipe both sides are all fixed with the flat-plate heat pipe being mounted with multiple fins arranged in parallel, water pipe both sides are equal
Fix with flat-plate heat pipe, energy utilization rate is higher.
It is highly preferred that each upper and lower water pipe be one group, this phase transformation store heat-releasing device can include multigroup water pipe, water pipe it
Between coupled or connection in series-parallel Hybrid connections using series, parallel mode, each water pipe is all with flat-plate heat pipe, multiple fin using as above
Connected mode, more excellent energy conversion rate can be obtained.
It is highly preferred that described phase transformation stores heat-releasing device to connect and/or when parallel way uses, each phase transformation stores heat release dress
The size put is calculated by following manner and determines：
The first step, calculates total amount of stored heat：
Q=mPCM[cPCM,L(tf-tmelt)+hPCM+cPCM,S(tmelt-ti)]
Wherein, m is phase-change material quality；cρ,lFor liquid phase change material specific heat；cρ,sFor solid phase change material specific heat；tiFor
Phase-change material initial temperature；tmeltFor phase-change material fusion temperature；tfTerminate beginning temperature for phase-change material；hPCMDive for phase-change material
Heat；
Second step, calculates electrical power needed for accumulation of heat：
PElectricity=Q/ τ
In formula, τ is thermal storage time；
3rd step, calculates heat release power
Q=cmWaterΔt
Wherein, Δ t is the heat release temperature difference；
4th step, according to the density design phase transition heat accumulation unit size of phase-change material.
Flat-plate heat pipe of the present utility model is to rely on liquid working substance phase transformation to transmit the heat transfer element of heat, therefore liquid work
The thermophysical property of matter has important impact for the service behaviour of heat pipe, is intended to select a kind of suitable liquid working substance, first
To be considered is the temperature range that steam runs.
Phase transformation of the present utility model stores heat-releasing device and has the advantage that：By the use of natural paraffin wax as heat storage medium, performance
Stable, pollution-free, no discharge；Store heat release stable.Heat pipe is little as heat carrier resistance, and heat conduction is fast.Low cost, is stored using paddy electricity
Heat；Safe and reliable, unique design, normal pressure runs；Based Intelligent Control, is used in combination with Automated condtrol, full intelligentized control method.
Heat pipe is introduced phase change thermal storage heat exchanger as heat transfer element, heat pipe (Heat Pipe, abbreviation HP) by this utility model
It is a kind of high-performance heat transfer components, it relies on the latent heat of phase change of internal working medium that substantial amounts of heat is passed to the other end from one end.Except biography
Outside thermal efficiency height, it also have compact, light, noiseless, no drive disk assembly the features such as；Therefore it is widely used in energy
The fields such as source, power, low temperature, medical science, electronics, chemical industry, space flight, food, to meet every field radiating, cooling, heating and temperature
Many-sided demand such as degree control.The species of heat pipe is a lot, is typically based on intraductal working medium reflux type and can be divided into standard heat pipe, gravity
Auxiliary heat pipe, two-phase thermo-siphon pipe, rotating heat pipe, infiltration heat pipe, electrohydrodynamic heat pipe, magneto hydrodynamic heat pipe etc..This
The heat pipe used in research is two-phase thermo-siphon pipe, i.e. gravity assisted heat pipe.
This utility model thoroughly changes the design concept of traditional thermophore, and a kind of new flat-plate type micro heat pipe phase transformation of design stores
Heat exchanger is it is contemplated that this new efficient storage heat-releasing device has broad application prospects.
Brief description
Fig. 1 is flat-plate heat pipe axonometric chart；
Fig. 2 is Fig. 1 along AA line sectional view；
Fig. 3 is Fig. 1 along BB line sectional view；
Fig. 4 is flat-plate heat pipe manufacture method flow chart；
Fig. 5 is switch and the water pipe scheme of installation that a phase transformation stores heat-releasing device；
Fig. 6 is switch and the water pipe scheme of installation that another phase transformation stores heat-releasing device；
Fig. 7 stores heat-releasing device axonometric chart for phase transformation；
Fig. 8 stores heat-releasing device connection diagram for phase transformation；
Fig. 9 stores heat-releasing device operation logic schematic diagram for phase transformation.
Main element symbol description：
1 flat-plate heat pipe
The inside and outside side plate of 1a, 1b
1c grid
1d is raised
1e groove
1f chamber
1g condensation segment
1h evaporator section
1k liquid is in the direction of motion of intracavity
S1, S2, S3, S4, S5 step
2 phase transition heat accumulation units
3 fins
4 water pipes
The upper and lower water pipe of 4a, 4b
5 casings
5a cover plate
5b side guard plate
6 device groups
7 switches
Specific embodiment
Understand for the ease of persons skilled in the art and realize this utility model, in conjunction with drawings and the specific embodiments
Further describe flat-plate heat pipe described in the utility model and the phase transformation storage heat-releasing device being made by flat-plate heat pipe.
Be a kind of flat-plate heat pipe 1 as shown in Figure 1 and Figure 2, including inside and outside side plate 1a, 1b and grid 1c, grid 1c with inside and outside
The inwall of side plate 1a, 1b is fixedly connected, and flat-plate heat pipe inner chamber is separated into multiple chamber 1f being interconnected, inside and outside side plate 1a, 1b
Inwall be equipped with multiple projection 1d, define groove 1e between adjacent protrusion 1d or between grid 1c and raised 1d.
As shown in Fig. 2 raised 1d and groove 1e is cuboid columnar.Raised 1d and groove 1e can also be semi-cylindrical
(i.e.：Tangent plane is semicircle).
Flat-plate heat pipe is aluminum, adopts to be constructed of aluminum and is easy to one extrusion molding, has the advantages that light and handy, arrangement is compact, more
Need not weld, decrease operation, cost reduces further.
The thickness of inside and outside side plate 1a, 1b is 2-3mm, and due to having grid 1c, inside and outside side plate 1a, 1b thickness is reduced to 2-
3mm remains to keep good and is unlikely to deform characteristic, and significantly reduces cost.
Flat-plate heat pipe of the present utility model is provided with multiple projection 1d due to inside and outside side plate 1a, 1b inwall, and grid
1c is fixedly connected with inside and outside side plate 1a, 1b inwall, and raised 1d and grid 1c all serves the effect of reinforcement, so that heat pipe holds
Press very capable, up to 5Mpa.
Flat-plate heat pipe of the present utility model is tested through key property and is found, it possesses excellent isothermal (1K/m) and very strong
Thermal-arrest ability, thermal response time short (within 5s).Heat pipe thickness is only 2-3mm, so that heat collector is more compact, light,
Cheap.Inside heat pipe bearing capacity can reach more than 10MPa, and maximum heat flow density is up to 100W/cm2.
Flat-plate heat pipe of the present utility model has following prominent advantage in terms of heat transfer：High-termal conductivity, excellent etc.
Warm nature, heat density transmutability, the reversibility of direction of heat flow, constant temperature uniform temperature, source can be made to converge separately, not mutual between cold fluid and hot fluid
The temperature range mix, adapting to and environmental field are wide.
A kind of flat-plate heat pipe manufacture method as shown in Figure 4：
S1, is crushed to flat tube using extrusion process through mould；
S2, by flat tube one end closure；
S3, flat tube is connected with pumped vacuum systems, is evacuated to 10-4Pa through molecular pump；Pumped vacuum systems is divided by vacuum
Sub- pump, three-way valve, tube for transfusion with a scale forms；
S4, swivel tee valve, close vacuum-pumping pipeline, liquid is poured in flat tube；
S5, closes three-way valve, flat tube is sealed.
It is illustrated in figure 7 a kind of phase transformation and store heat-releasing device 2, including：Switch 7, water pipe 4, casing 5；The end of water pipe 4
Stretch out casing 5, wherein, water pipe includes upper and lower water pipe 4a, 4b；Switch 7 is in the inside (not shown) of casing 5, casing
It is filled with storage exothermic medium between 5 and switch 7：Natural paraffin wax 8 (not shown).
It is that a phase transformation stores the switch 7 of heat-releasing device and the scheme of installation of water pipe 4 as shown in Figure 5, Figure 6.Exchange dress
Put 7 to include：Fin 3, flat-plate heat pipe 1；Multiple fins 3 arranged in parallel are vertically fixedly mounted on flat board hot plate 1 outer panel 1b's
Outer surface, flat board hot plate 1 interior plate 1a is fixedly connected with water pipe 4.
In Fig. 6, the both sides of water pipe 4 have been respectively mounted switch 7, and for lifting thermal conversion efficiency, energy utilization rate is higher.
As shown in figure 3, the top of flat board hot plate 1 be condensation segment 1g, bottom be evaporator section 1h.
As shown in figure 5, multiple fins 3 arranged in parallel are perpendicularly fixed at the outer surface of flat-plate heat pipe 1 outer panel 1b, water
Pipe 4 includes upper and lower water pipe 4a, 4b, and upper hose 4a is fixedly mounted on condensation segment 1g, and downcomer 4b is fixedly mounted on evaporator section 1h's
Bottom, liquid intracavity along Fig. 3 shown in 1k direction move.
This phase transformation stores heat-releasing device and can be installed in series multiple switches 7 according to the length of water pipe 4.
As shown in Figure 7, Figure 8, when water pipe 4 constitutes complex pipeline, multiple phase transformations store heat-releasing device 2 constituent apparatus group 6, its
In：Each upper and lower water pipe 4a, 4b are one group, can be coupled using series, parallel mode or connection in series-parallel mixing between multigroup water pipe 4
Connect, each water pipe 4 all adopts foregoing connected mode with switch 7, can obtain more excellent energy conversion rate.
As shown in fig. 7, this device also includes casing 5, casing 5 is the cuboid that the thick steel plate of 3mm is made, and has cover plate 5a
With multiple side guard plate 5b, pass in and out between the water pipe 4 of casing 5 and casing using the sealing of rubber extruded formula.
Cover plate 5a is flexibly connected with side guard plate 5b, easy to disassemble；Can also be that part side guard plate 5b installs for activity.
Water pipe 4 and casing 5 adopt rubber extruded formula to seal, and casing 5 also has the external thermal insulation that thickness is 80mm, and (in figure is not shown
Go out), in the present embodiment, described external thermal insulation adopts polyurethane foam to process.
As shown in figure 8, when the pipeline that water pipe 4 is formed is huge and complicated, needing series connection and/or multiple device in parallel
Group, the size of each device group is calculated by following manner and determines：
The first step, calculates total amount of stored heat：
Q=mPCM[cPCM,L(tf-tmelt)+hPCM+cPCM,S(tmelt-ti)]
Wherein, m is phase-change material quality, and design calculating takes mPCM=1000kg；cρ,lFor liquid phase change material specific heat, design
Calculating takes cPCM,L=2.66kJ/ (kg DEG C) kJ/ (kg DEG C)；cρ,sFor solid phase change material specific heat, design calculating and take cPCM,S
=2.66kJ/ (kg DEG C)；tiFor phase-change material initial temperature, design calculating and take ti=35 DEG C；tmeltMelt temperature for phase-change material
Degree, design calculating takes tmelt=60 DEG C；tfTerminate beginning temperature for phase-change material, design calculating takes tf=85 DEG C；hPCMFor phase transformation material
Material latent heat, design calculating takes 198.9kJ/kg.
Then obtaining design storage thermal discharge is
Q=1000 × [2.66 × (85-60)+198.9+2.66 × (60-35)] ≈ 332000kJ
Second step, calculates electrical power needed for accumulation of heat：
If thermal storage time is 8h, completing the electrical power needed for accumulation of heat is
PElectricity=Q/ τ
In formula, τ is thermal storage time, and design calculating takes τ=8h.
PElectricity=Q/ τ=332000 × 103/(8×3600)≈11.5kW
Accumulation of heat adopts wind-powered electricity generation or night paddy electricity (evening 23 is when next day 7).
3rd step, calculates heat release power
Using recirculated water as exothermic medium, by
Q=cmWaterΔt
Wherein, c takes 4.18kJ/ (kg DEG C) for water specific heat capacity, and Δ t is the heat release temperature difference, and design calculating takes t=30 DEG C of Δ.
In other words, above under specified criteria, the heat that 1 ton of phase-change material is stored is equivalent to 2.27 tons 35 DEG C of water institute
The heat storing.
Heat release power, if stored available heat is discharged by 1h, heat release power is
P=Q/ τ=332000 × 103/(1×3600)≈92kW
4th step, designs phase transition heat accumulation unit
Phase-change material density is 0.8kg/m3, volume is about 1000/0.8=1.25m3It is considered to volume contained by heat pipe and fin
Plus 10% coefficient of thermal expansion, the cumulative volume about V=1.5m of equipment3, take cuboid, a size of：
0.5m×2m×1.5m
It is illustrated in figure 9 phase transformation and stores heat-releasing device operation logic schematic diagram, the running that phase transformation stores heat-releasing device is as follows：
Because phase transformation stores the core component of heat-releasing device and the heat-transfer character of flat-plate heat pipe for from bottom to top, flat-plate heat pipe is
Microarray flat heat pipe, so this phase transformation stores heat-releasing device and is divided into accumulation of heat and takes hot two kinds of operating modes.
Accumulation of heat operating mode：High temperature circulation water flows through the downcomer of bottom, and the hot water in downcomer is delivered to flat board by tube wall
Heat pipe, flat-plate heat pipe gives phase-change material by the array of fins that multiple fins are constituted heat, reaches the purpose of accumulation of heat.
Take thermal condition：The array of fins that flat-plate heat pipe is consisted of multiple fins and phase-change material heat exchange, and heat to
On be delivered to the upper hose on top, heat is taken away by the upper hose through top for the circulating water flow, reaches the purpose taking heat.
Above-mentioned storage heat-releasing device phase transition temperature as needed can select the different each model paraffin (phase-change material) of fusing point,
For example：Take 60 DEG C and 40 DEG C of phase transition temperature respectively, the former stores the heat release temperature difference and takes 30 DEG C, can be used for hot water supply or floor heating；
The latter stores the heat release temperature difference and takes 20 DEG C, can be used for supplying heat pump.
Flat-plate heat pipe of the present utility model is to rely on liquid working substance phase transformation to transmit the heat transfer element of heat, therefore liquid work
The thermophysical property of matter has important impact for the service behaviour of heat pipe, is intended to select a kind of suitable liquid working substance, first
To be considered is the temperature range that steam runs.
Phase transformation of the present utility model stores heat-releasing device and has the advantage that：
1 flat-plate heat pipe has following prominent advantage in terms of heat transfer：High-termal conductivity, excellent isothermal, heat density
Transmutability, the reversibility of direction of heat flow, constant temperature uniform temperature, source can be made to converge separately, not intermixed between cold fluid and hot fluid, adapt to
Temperature range and environmental field are wide.
2nd, phase transformation stores heat-releasing device and has the advantage that：By the use of natural paraffin wax as heat storage medium, stable performance, no dirt
Dye, no discharges；Store heat release stable.Heat pipe is little as heat carrier resistance, and heat conduction is fast.Low cost, using paddy electricity accumulation of heat；Safety can
Lean on, unique design, normal pressure runs；Based Intelligent Control, is used in combination with Automated condtrol, full intelligentized control method.
Claims (10)
1. a kind of flat-plate heat pipe is it is characterised in that include：
Inside and outside side plate qualifying grid,
Grid is fixedly connected with the inwall of inside and outside side plate, and flat-plate heat pipe inner chamber is separated into multiple chambeies being interconnected,
The inwall of inside and outside side plate is provided with multiple projections,
Form groove between adjacent protrusion or grid and projection.
2. flat-plate heat pipe as claimed in claim 1 is it is characterised in that described projection is semi-cylindrical or described groove is half
Cylindrical.
3. flat-plate heat pipe as claimed in claim 1 it is characterised in that described flat-plate heat pipe adopt aluminum one extrusion molding, interior,
Outside plate thickness is 2-3mm.
4. a kind of phase transformation stores heat-releasing device it is characterised in that including：
Switch, water pipe, casing；
Switch is fixedly connected with water pipe in box house, switch,
Casing is stretched out in the end of water pipe, and wherein, water pipe includes upper and lower water pipe, and upper hose is fixedly mounted on switch top, under
Water pipe is fixedly mounted on switch bottom,
It is filled with storage exothermic medium between casing and switch.
5. phase transformation as claimed in claim 4 stores heat-releasing device it is characterised in that described storage exothermic medium is natural paraffin wax.
6. the phase transformation as described in claim 4 or 5 stores heat-releasing device it is characterised in that described switch includes：Fin, flat
Plate heat pipe；
Multiple fins arranged in parallel are vertically fixedly mounted on the outer surface of flat board hot plate outer panel,
Flat board hot plate interior plate is fixedly connected with water pipe,
The top of flat board hot plate is condensation segment, bottom is evaporator section；
Upper hose is fixedly mounted on condensation segment, and downcomer is fixedly mounted on evaporation pars infrasegmentalis.
7. phase transformation as claimed in claim 6 stores heat-releasing device it is characterised in that each upper and lower water pipe is one group, and this phase transformation stores
Heat-releasing device includes multigroup water pipe, is coupled using series, parallel mode or connection in series-parallel Hybrid connections between water pipe.
8. phase transformation as claimed in claim 6 store heat-releasing device it is characterised in that described phase transformation store heat-releasing device with connect and/
Or parallel way is when being applied in combination, the size that each phase transformation stores heat-releasing device is calculated by following manner and determines：
The first step, calculates total amount of stored heat：
Q=mPCM[cPCM,L(tf-tmelt)+hPCM+cPCM,S(tmelt-ti)]
Wherein, m is phase-change material quality；cρ,lFor liquid phase change material specific heat；cρ,sFor solid phase change material specific heat；tiFor phase transformation
Material initial temperature；tmeltFor phase-change material fusion temperature；tfTerminate beginning temperature for phase-change material；hPCMFor phase-change material latent heat；
Second step, calculates electrical power needed for accumulation of heat：
PElectricity=Q/ τ
In formula, τ is thermal storage time；
3rd step, calculates heat release power
Q=cmWaterΔt
Wherein, Δ t is the heat release temperature difference；
4th step, according to the density design phase transition heat accumulation unit size of phase-change material.
9. phase transformation as claimed in claim 7 stores heat-releasing device it is characterised in that described casing has external thermal insulation, described outer guarantor
Temperature is processed using polyurethane foam.
10. phase transformation as claimed in claim 7 stores heat-releasing device it is characterised in that described casing has cover plate and side plate, water pipe
The position of casing is stretched out in end, adopts rubber extruded formula to seal between water pipe and casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620888938.6U CN205940240U (en) | 2016-08-16 | 2016-08-16 | Heat radiation device is held in flat plate heat pipe and phase transition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620888938.6U CN205940240U (en) | 2016-08-16 | 2016-08-16 | Heat radiation device is held in flat plate heat pipe and phase transition |
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| Publication Number | Publication Date |
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| CN205940240U true CN205940240U (en) | 2017-02-08 |
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ID=57918036
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764112A (en) * | 2016-08-16 | 2018-03-06 | 北京市天银地热开发有限责任公司 | A kind of flat-plate heat pipe, preparation method and phase transformation store heat-releasing device |
| CN111278256A (en) * | 2019-12-31 | 2020-06-12 | 南京理工大学 | Phase change heat storage device based on convective heat transfer and key parameter determination method thereof |
-
2016
- 2016-08-16 CN CN201620888938.6U patent/CN205940240U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764112A (en) * | 2016-08-16 | 2018-03-06 | 北京市天银地热开发有限责任公司 | A kind of flat-plate heat pipe, preparation method and phase transformation store heat-releasing device |
| CN111278256A (en) * | 2019-12-31 | 2020-06-12 | 南京理工大学 | Phase change heat storage device based on convective heat transfer and key parameter determination method thereof |
| CN111278256B (en) * | 2019-12-31 | 2021-09-21 | 南京理工大学 | Phase change heat storage device based on convection heat transfer |
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