CN108775829A - Rotatable jacket type phase change energy storage heat accumulator - Google Patents
Rotatable jacket type phase change energy storage heat accumulator Download PDFInfo
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- CN108775829A CN108775829A CN201810781758.1A CN201810781758A CN108775829A CN 108775829 A CN108775829 A CN 108775829A CN 201810781758 A CN201810781758 A CN 201810781758A CN 108775829 A CN108775829 A CN 108775829A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 26
- 230000008859 change Effects 0.000 title claims description 22
- 238000005338 heat storage Methods 0.000 claims abstract description 32
- 238000009825 accumulation Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000011232 storage material Substances 0.000 claims description 19
- 230000002035 prolonged effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 27
- 239000012530 fluid Substances 0.000 description 23
- 238000009841 combustion method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000003416 augmentation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
- F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/08—Fins with openings, e.g. louvers
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a rotatable jacketed phase-change energy-storage heat accumulator which comprises a central heat exchange unit, a heat accumulation unit and an outer layer heat exchange unit; the central heat exchange unit comprises a central heat exchange circular pipe, and two ends of the central heat exchange circular pipe are respectively provided with a central heat exchange circular pipe support for rotating the central heat exchange circular pipe; the outer-layer heat exchange unit comprises outer heat exchange circular pipes and a barrel, the outer heat exchange circular pipes are concentrically sleeved between two central heat exchange circular pipe supports of the central heat exchange circular pipes, two ends of the barrel are sleeved outside the outer heat exchange circular pipes through sealing bearings, and two ends of each outer heat exchange circular pipe are fixed on the central heat exchange circular pipes through annular seal heads; the heat storage unit is composed of an annular area formed between the central heat exchange circular tube and the outer heat exchange circular tube. The invention has strong heat storage capacity and high heat storage efficiency, and can avoid heat from diffusing outwards in the heat storage process.
Description
Technical field
The invention belongs to technical field of phase change energy storage, and in particular to a kind of rotatable jacket type phase-change accumulation energy storage heater.
Background technology
As global energy situation in short supply is gradually aggravated, the development of New Energy Industry is imperative, but wind energy, solar energy
Equal clean energy resourcies are affected by environment larger, and power is unstable, and the electricity fluctuated up and down is difficult to directly be utilized by power grid.New energy is wanted
Want to develop, it is necessary to rely on energy storage technology, unstable wind energy, solar power generation are stored, steadily exported.Therefore energy storage skill
Art becomes one of core technology of new energy development.Not only new energy development need energy storage technology, energy saving more too busy to get away energy storage
Technology.Electricity needs increases year by year, and the load difference of peak of power consumption and low ebb is away from increasing.Developed country has begun experiment and uses
Various methodologies energy storage stores the electricity that the low power consumption phase has more than needed, takes out use again when peak of power consumption, in the hope of reducing
Waste of energy realizes peak clipping tune paddy.
Energy-accumulating power station is an important breakthrough in technical field of energy storage.It can the energy storage in low power consumption, electricity consumption is high
Discharge feedback grid when the peak phase, and carrying out local avoid the peak hour to power grid adjusts paddy, balanced power load.Energy-accumulating power station can also store too simultaneously
It is positive can the electric energy that generates of power station, realize effective storage of the energy, break through and weather limitation, solve and round-the-clock use the sun
The problem of energy.
And " energy-accumulating power station " most important link is exactly effective storage of energy.And current common regenerative apparatus
Heat storage capacity is poor, heat storage efficiency is low becomes the key factor for restricting this industry development.
Based on this, the present invention proposes a kind of rotatable jacket type phase-change accumulation energy storage heater, it is intended to solve common accumulation of heat
The problem that device heat storage capacity is poor, heat storage efficiency is low, on the one hand, devise the novel spiral helicine outer wing with flow-guiding mouth
Piece, and the flow-disturbing effect of outer fin is improved by using the mode that heat exchanger tube rotates, to reach augmentation of heat transfer purpose.In addition,
Phase change heat storage material in thermal storage unit due to the variation along with volume in phase transition process, so thermal storage unit most
Eminence can all be easy to that dry combustion method occurs there are one section of clear area, this clear area, the normal use of storage heater be influenced, using rotation
Mode can effectively avoid this problem；On the other hand, jacket type regenerative structure has been invented, has been solved hot in heat-accumulating process
It measures to the problem of external diffusion.
Invention content
That the object of the present invention is to provide a kind of heat storage capacities is strong, heat storage efficiency is high and can avoid in heat-accumulating process heat to
The rotatable jacket type phase-change accumulation energy storage heater of external diffusion.
A kind of rotatable jacket type phase-change accumulation energy storage heater provided by the invention, including center heat exchange unit, accumulation of heat list
Member and outer layer heat exchange unit；The center heat exchange unit includes center heat exchange pipe, during one end of center heat exchange pipe is
Heart heat exchange unit entrance, heat exchange unit exports centered on the other end, and the both ends of the center heat exchange pipe are respectively arranged in confession
The center heat exchange pipe bearing of heart heat exchange pipe rotation, one end of the center heat exchange pipe is provided with driven gear, in described
Heart heat exchange unit entrance is connected to the center heat exchange pipe inlet connection for center heat exchange pipe rotation, and the center heat exchange unit goes out
Mouth is connected to the center heat exchange pipe discharge connection for center heat exchange pipe rotation；The outer layer heat exchange unit includes outer heat exchange pipe
And cylinder, the outer heat exchange pipe concentric locking collar are described between the two centers heat exchange pipe bearing of center heat exchange pipe
Cylinder both ends by sealing bearing holder (housing, cover) outside the outer heat exchange pipe, be connected on the cylinder outer layer heat exchange unit entrance with
Outer layer heat exchange unit exports, and the outer heat exchange tube ends are fixed on the center by annular seal head and exchange heat on pipe, described
Cartridge mount is installed on cylinder；The thermal storage unit is exchanged heat by the center and is formed between pipe and the outer heat exchange pipe
Annular region is constituted, and it is filled with phase change heat storage materials.
Among the above, the inside pipe wall of the center heat exchange pipe is provided with longitudinal inner fin.
Among the above, the inner fin is rectangle, at least four, is uniformly arranged in an axial direction and every free end is along pipe
Heart line extends.
Among the above, the pipe outer wall of the outer heat exchange pipe is provided with outer fin.
Among the above, the outer layer heat exchange unit entrance is arranged on the cylinder side, and the outer layer heat exchange unit goes out
Mouth is arranged in the cylinder other side in the following, the outer fin is helical form, and the direction extended spirally is：It exchanges heat from the outer layer
Unit entrance is exported to the outer layer heat exchange unit to be extended.
Among the above, the outer fin along the direction extended spirally screw pitch gradually from large to small.
Among the above, the outer fin is made of multistage spiral section, and latter section staggers successively with the last period, and before latter section
Portion is connected on the rear portion helicla flute centre position of the last period.
Among the above, multiple flow-guiding mouths are provided on the outer fin.
Among the above, there is support plate on center heat exchange pipe bearing, be provided with groove on the support plate, on the groove
Equipped with ball, the center exchanges heat on pipe, two centers heat exchange pipe support outer is provided with chuck.
Among the above, porous media is also filled in the thermal storage unit, the phase change heat storage material is filled in described porous
In the gap that the annular region formed between medium and center heat exchange pipe and the outer heat exchange pipe is constituted.
In the present invention, be connected on the outside of the center heat exchange pipe in the heat exchange unit of center with phase change heat storage material reinforcing heat
Amount is transmitted, and inside has longitudinal inner fin to increase heat exchange area, while increasing high temperature heat exchanging fluid in center heat exchange pipe
The turbulent perturbation in portion is to achieve the purpose that enhanced heat transfer；Center exchanges heat except pipe stretching cylinder, and by the center with ball
Exchange heat pipe seat supports.Center heat exchange pipe connects into an entirety by annular seal head and outer heat exchange pipe, and in
The driven gear of heart heat exchange pipe transmits the torque come and achievees the purpose that unitary rotation.High temperature heat exchanging fluid is from center heat exchange unit
Entrance flows into the cavity of center heat exchange pipe, by exchanging heat being in direct contact of pipe inner tubal wall and inner fin with center, by heat
Pass to the phase change heat storage material on the outside of center heat exchange pipe.
In the present invention, it is equipped with porous media structure in thermal storage unit, and porous media structure and center heat exchange pipe, outer
Heat exchange pipe is connected, and not only acts as the effect of enhanced heat exchange, while also functioning to fixed support center heat exchange pipe and outer heat exchange
The effect of pipe.It is combined with porous media structure equipped with phase change heat storage material in thermal storage unit, phase change heat storage material passes through
The mode being in direct contact absorbs the heat from interior heat exchange pipe outer wall, phase change heat storage material network skeleton, outer heat exchange round tube inner wall.
In the present invention, outer layer heat exchange unit exchange heat outside pipe outer wall with outer fin increasing heat exchange area.
Simultaneously during center heat exchange pipe, outer heat exchange pipe integrally slowly run, this outer fin with flow-guiding mouth can be big
Increase increase temperature heat exchanging fluid exchange heat outside circular tube external turbulent perturbation to achieve the purpose that enhanced heat transfer.It is flowed when high temperature exchanges heat
When body enters outer layer heat exchanger chamber by outer layer heat exchange unit entrance, by being connect with outer heat exchange circular tube external wall and the direct of outer fin
Touch the phase change heat storage material transferred heat on the inside of outer heat exchange pipe.
Present invention seek to address that the problem that common regenerative apparatus heat storage capacity difference heat storage efficiency is low, on the one hand, by using
The mode of heat exchanger tube rotation improves the flow-disturbing effect of outer fin, to reach augmentation of heat transfer purpose.In addition, in thermal storage unit
Phase change heat storage material is due to the variation along with volume in phase transition process, so the highest point in thermal storage unit all can there are one
Section clear area, this clear area are easy to that dry combustion method occurs, and influence the normal use of storage heater, can be effective by the way of rotation
Avoid this problem；On the other hand, jacket type regenerative structure solves the problems, such as in heat-accumulating process heat to external diffusion.
The present invention uses the storage heater structure of jacket type, in storage heater interlayer central filler heat-storing material, inside and outside walk
High temperature heat exchanging fluid so that heat-storing material is heated simultaneously by inner side and outer side, is substantially increased heat-storing material and is obtained heat storage efficiency, together
When also avoid accumulation of heat region due to unilateral heating temperature is uneven and caused by equipment damage problem；
The present invention uses the storage heater structure of jacket type so that has certain laminated heat-preserving effect after heat-storing material accumulation of heat, subtracts
Heat diffusion is obtained after few heat-storing material accumulation of heat；
The present invention uses rotatable storage heater structure, on the one hand, the phase change heat storage material in thermal storage unit is due in phase transformation
In the process along with the variation of volume, so the highest point in thermal storage unit all can there are one section of clear areas.This clear area is very
It is easy to happen dry combustion method.By heat exchanger tube unitary rotation be exactly in order to avoid high temperature heat exchanging fluid always outside exchange heat pipe side
The phenomenon that white space dry combustion method；On the other hand, it being equipped with outer fin on the outside of heat exchange pipe outside, outer fin is equipped with flow-guiding mouth, when
Outer fin rotation, the turbulent flow that outer layer heat exchanger chamber high temperature heat exchanging fluid can be improved is driven to disturb when outer heat exchange pipe rotation
It is dynamic.
The present invention outer fin being arranged on the outside of pipe that exchanges heat outside is helical form, using " along the direction extended spirally
Screw pitch is gradually from large to small " arrangement mode.This is because the temperature in high temperature fluid entrance high temperature fluid is higher, heat transfer temperature
Difference is larger, and heat transfer efficiency is higher, thus outer fin can be arranged it is thin.High temperature fluid outlet section, high temperature heat exchanging fluid are arrived
Temperature continuously decrease, heat transfer temperature difference is smaller, and heat transfer efficiency is relatively low, thus outer fin can be arranged it is closeer.It is whole in this way to set
It sets, can effectively reduce manufacturing cost while improving heat transfer efficiency.In addition, outer fin is by multistage spiral section dislocation structure
At, have flow-disturbing effect, be also greatly improved heat transfer efficiency.
Description of the drawings
Fig. 1 is the partial sectional view of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the stereoscopic schematic diagram of heat exchange pipe outside the one of which of the present invention.
Fig. 4 is the stereoscopic schematic diagram of the outer heat exchange pipe of another kind of the present invention.
Fig. 5 is the structural schematic diagram of the center heat exchange pipe bearing of the present invention.
Specific implementation mode
Embodiment one：
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 5, a kind of rotatable jacket type phase-change accumulation energy storage heater provided by the invention, including
Center heat exchange unit, thermal storage unit and outer layer heat exchange unit；The center heat exchange unit includes center heat exchange pipe 1, in described
The heart exchange heat pipe 1 one end centered on heat exchange unit entrance, heat exchange unit exports centered on the other end, and the center exchanges heat pipe
1 both ends are respectively arranged with the center heat exchange pipe bearing 13 rotated for center heat exchange pipe 1, the center heat exchange pipe bearing
There is support plate 19 on 13, groove is provided on the support plate 19, ball 18, the center heat exchange pipe 1 are housed on the groove
Upper, two centers heat exchange pipe bearing, 13 outside is provided with chuck 16, and chuck 16 plays positioning action to center heat exchange pipe 1, prevents
Only center heat exchange 1 axial dipole field of pipe.One end of the center heat exchange pipe 1 is provided with driven gear 15, the center heat exchange
Unit entrance is connected to the center heat exchange pipe inlet connection 14 rotated for center heat exchange pipe 1, the center heat exchange unit outlet
It is connected to the center heat exchange pipe discharge connection 10 rotated for center heat exchange pipe 1, center heat exchange pipe inlet connection 14
Gone out by bearing and the center heat exchange unit entrance and the center heat exchange unit with center heat exchange pipe discharge connection 10
Mouth connection.
The outer layer heat exchange unit includes outer heat exchange pipe 4 and cylinder 3, and outer 4 concentric locking collar of heat exchange pipe is mounted in described
Between the two centers heat exchange pipe bearing 13 of center heat exchange pipe 1,3 both ends of the cylinder are sleeved on described by sealing bearing 9
Outside outer heat exchange pipe 4, outer layer heat exchange unit entrance 2 and outer layer heat exchange unit outlet 11 are connected on the cylinder 3, it is described to change outside
4 both ends of hot pipe are fixed on the center by annular seal head 17 and exchange heat on pipe 1, and cartridge mount is equipped on the cylinder 3
12, there are two be separately mounted in 3 both sides of cylinder.
The thermal storage unit is exchanged heat the annular region structure that is formed between pipe 1 and the outer heat exchange pipe 4 by the center
At it is filled with phase change heat storage materials.
The inside pipe wall of the center heat exchange pipe 1 is provided with longitudinal inner fin 6, and the longitudinal direction inner fin 6 is rectangle, at least
There are four, display is 12 in Fig. 2, is uniformly arranged in an axial direction and every free end extends along tube hub line；The outer heat exchange
The pipe outer wall of pipe 4 is provided with outer fin 8, and the outer layer heat exchange unit entrance is arranged on 3 side of the cylinder, described outer
The outlet of layer heat exchange unit is arranged in 3 other side of the cylinder in the following, the outer fin 8 is helical form, and the direction extended spirally is：
It exports and extends from the outer layer heat exchange unit entrance to the outer layer heat exchange unit；The outer fin 8 is along the side extended spirally
To screw pitch gradually from large to small, be provided with multiple flow-guiding mouths 7 on the outer fin 8.
Embodiment two：
As shown in Figure 1, Figure 2, it shown in Fig. 4 and Fig. 5, is a difference in that with embodiment one：The outer fin 8 is made of multistage spiral section,
Latter section staggers successively with the last period, and latter section of front is connected on the rear portion helicla flute centre position of the last period, the outer wing
It is also provided with multiple flow-guiding mouths 7 on every section of spiral section in piece 8.
Embodiment three：As shown in Figure 1, Figure 2, it shown in Fig. 3 and Fig. 5, is a difference in that with embodiment one：In the thermal storage unit also
It is filled with porous media 5, the phase change heat storage material is filled in the porous media 5 and the center and exchanges heat pipe 1 and described
In the gap that the annular region formed between outer heat exchange pipe 4 is constituted.
Example IV：As shown in Figure 1, Figure 2, it shown in Fig. 4 and Fig. 5, is a difference in that with embodiment two：In the thermal storage unit also
It is filled with porous media 5, the phase change heat storage material is filled in the porous media 5 and the center and exchanges heat pipe 1 and described
In the gap that the annular region formed between outer heat exchange pipe 4 is constituted.
In actual use, phase change heat storage material is filled in thermal storage unit.High temperature heat exchanging fluid is respectively in
Heart heat exchange unit entrance, outer layer heat exchange unit entrance flow into center heat exchange unit and outer layer heat exchange unit.
Driving torque is passed to by center by the driven gear on the active wheel drive center heat exchange pipe by motor band simultaneously
Exchange heat pipe, so that center heat exchange pipe and outer heat exchange pipe are whole relative to cylinder generation relative low speeds rotation.Rotation
Purpose there are two：On the one hand be, the phase change heat storage material in thermal storage unit due in phase transition process along with volume
Variation, so the highest point in thermal storage unit all can there are one section of clear areas.This clear area is easy to that dry combustion method occurs.It will heat exchange
Pipe the phenomenon that unitary rotation is exactly in order to avoid the always white space dry combustion method of the side of heat exchange pipe outside of high temperature heat exchanging fluid.
Outer fin rotation is driven when outer heat exchange pipe rotates, and can improve the turbulent flow of outer layer heat exchange unit high temperature heat exchanging fluid
Disturbance.Embodiment one exchange heat at home and abroad the outer fin being arranged on the outside of pipe arrangement mode using " along the direction extended spirally
Screw pitch is gradually from large to small " arrangement mode, this is because the temperature in high temperature fluid entrance high temperature fluid is higher, heat transfer temperature
Difference is larger, and what the higher outer fin of event of heat transfer efficiency can be arranged dredges.High temperature fluid outlet section has been arrived, high temperature heat exchanging fluid
Temperature continuously decreases, and heat transfer temperature difference is smaller, and the relatively low outer fin of event of heat transfer efficiency can be arranged closeer.Such whole installation,
Manufacturing cost can effectively be reduced while improving heat transfer efficiency.And the outer fin in embodiment two is by multistage spiral section
It constitutes, latter section staggers successively with the last period, is also greatly improved the turbulent perturbation of outer layer heat exchange unit high temperature heat exchanging fluid,
Greatly improve heat transfer efficiency.
High temperature heat exchanging fluid in the heat exchange unit of center is in direct contact by exchanging heat round tube inner wall, inner fin with center
Heat is passed to the phase change heat storage material in thermal storage unit by heat exchange from inside；High temperature heat exchanging fluid in outer layer heat exchange unit
By with outer heat exchange circular tube external wall, outer fin, direct contact heat transfer by heat from outside pass to the phase transformation in thermal storage unit store
Hot material.
High temperature heat exchanging fluid finally exports the heat exchange of outflow center by the outlet of center heat exchange unit, outer layer heat exchange unit respectively
Unit and outer layer heat exchange unit.It is to connect outside that heat transfer tube outlet, which is taken over, wherein in center heat exchange unit outlet setting
High temperature heat exchanging fluid pipeline.Ensure that high temperature fluid normally effectively flows out, not the influence of acceptor center heat exchange pipe rotation.
Claims (10)
1. a kind of rotatable jacket type phase-change accumulation energy storage heater, it is characterised in that：Including center heat exchange unit, thermal storage unit and
Outer layer heat exchange unit；The center heat exchange unit includes center heat exchange pipe, is changed centered on one end of the center heat exchange pipe
Hot cell entrance, heat exchange unit exports centered on the other end, and the both ends of the center heat exchange pipe are respectively arranged with to be changed for center
The center heat exchange pipe bearing of hot pipe rotation, one end of the center heat exchange pipe are provided with driven gear, and the center is changed
Hot cell entrance is connected to the center heat exchange pipe inlet connection for center heat exchange pipe rotation, and the center heat exchange unit outlet connects
There is the center heat exchange pipe discharge connection for center heat exchange pipe rotation；The outer layer heat exchange unit includes outer heat exchange pipe and cylinder
Body, the outer heat exchange pipe concentric locking collar is between the two centers heat exchange pipe bearing of center heat exchange pipe, the cylinder
Both ends are connected to outer layer heat exchange unit entrance and outer layer by sealing bearing holder (housing, cover) outside the outer heat exchange pipe on the cylinder
Heat exchange unit exports, and the outer heat exchange tube ends are fixed on the center by annular seal head and exchange heat on pipe, the cylinder
On cartridge mount is installed；The thermal storage unit is exchanged heat the annular that is formed between pipe and the outer heat exchange pipe by the center
Region is constituted, and it is filled with phase change heat storage materials.
2. a kind of rotatable jacket type phase-change accumulation energy storage heater according to claim 1, it is characterised in that：The center
The inside pipe wall of heat exchange pipe is provided with longitudinal inner fin.
3. a kind of rotatable jacket type phase-change accumulation energy storage heater according to claim 2, it is characterised in that：The interior wing
Piece is rectangle, at least four, is uniformly arranged in an axial direction and every free end is prolonged along tube hub line.
4. a kind of rotatable jacket type phase-change accumulation energy storage heater according to claim 3, it is characterised in that：It is changed outside described
The pipe outer wall of hot pipe is provided with outer fin.
5. a kind of rotatable jacket type phase-change accumulation energy storage heater according to claim 4, it is characterised in that：The outer layer
Heat exchange unit entrance is arranged on the cylinder side, and the outer layer heat exchange unit outlet is arranged under the cylinder other side
Face, the outer fin are helical form, and the direction extended spirally is：It exchanges heat from the outer layer heat exchange unit entrance to the outer layer single
Member outlet extends.
6. a kind of rotatable jacket type phase-change accumulation energy storage heater according to claim 5, it is characterised in that：The outer wing
Piece along the direction extended spirally screw pitch gradually from large to small.
7. a kind of rotatable jacket type phase-change accumulation energy storage heater according to claim 5, it is characterised in that：The outer wing
Piece is made of multistage spiral section, and latter section staggers successively with the last period, and latter section of front is connected on the rear portion spiral of the last period
Slot centre position.
8. a kind of rotatable jacket type phase-change accumulation energy storage heater described according to claim 6 or 7, it is characterised in that：It is described
Multiple flow-guiding mouths are provided on outer fin.
9. a kind of rotatable jacket type phase-change accumulation energy storage heater described according to claim 6 or 7, it is characterised in that：It is described
There is support plate on center heat exchange pipe bearing, groove is provided on the support plate, ball is housed on the groove, the center is changed
Hot pipe is equipped with chuck at two centers heat exchange pipe support outer respectively.
10. a kind of rotatable jacket type phase-change accumulation energy storage heater according to claim 1, it is characterised in that：The storage
Porous media is also filled in hot cell, the phase change heat storage material is filled in the porous media and center heat exchange pipe
In the gap that the annular region formed between the outer heat exchange pipe is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781758.1A CN108775829A (en) | 2018-07-17 | 2018-07-17 | Rotatable jacket type phase change energy storage heat accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781758.1A CN108775829A (en) | 2018-07-17 | 2018-07-17 | Rotatable jacket type phase change energy storage heat accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108775829A true CN108775829A (en) | 2018-11-09 |
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ID=64031298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810781758.1A Pending CN108775829A (en) | 2018-07-17 | 2018-07-17 | Rotatable jacket type phase change energy storage heat accumulator |
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| Country | Link |
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| CN (1) | CN108775829A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764325A (en) * | 2019-01-28 | 2019-05-17 | 曹孟昌 | A kind of vertical steam heat accumulator for power plant thermal boiler |
| CN109764324A (en) * | 2019-01-28 | 2019-05-17 | 曹孟昌 | A kind of vertical steam heat accumulator in thermal boiler |
| CN114233722A (en) * | 2020-09-09 | 2022-03-25 | 恩德莱斯+豪瑟尔韦泽尔有限商业两合公司 | Protective tube for inserting a pipe or a container with reduced sensitivity to vortex-induced vibrations |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109764325A (en) * | 2019-01-28 | 2019-05-17 | 曹孟昌 | A kind of vertical steam heat accumulator for power plant thermal boiler |
| CN109764324A (en) * | 2019-01-28 | 2019-05-17 | 曹孟昌 | A kind of vertical steam heat accumulator in thermal boiler |
| CN114233722A (en) * | 2020-09-09 | 2022-03-25 | 恩德莱斯+豪瑟尔韦泽尔有限商业两合公司 | Protective tube for inserting a pipe or a container with reduced sensitivity to vortex-induced vibrations |
| US11976766B2 (en) | 2020-09-09 | 2024-05-07 | Endress+Hauser Wetzer Gmbh+Co. Kg | Protective tube for insertion into a pipe or vessel with reduced sensitivity to vortex induced vibrations |
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