CN105928407A - Sleeve phase change heat storage heat exchanger - Google Patents
Sleeve phase change heat storage heat exchanger Download PDFInfo
- Publication number
- CN105928407A CN105928407A CN201610471822.7A CN201610471822A CN105928407A CN 105928407 A CN105928407 A CN 105928407A CN 201610471822 A CN201610471822 A CN 201610471822A CN 105928407 A CN105928407 A CN 105928407A
- Authority
- CN
- China
- Prior art keywords
- circular
- end cover
- radiated rib
- heat exchanger
- standpipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
-
- 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
- F28F1/24—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 transversely
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
-
- 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 invention discloses a sleeve phase change heat storage heat exchanger. The sleeve phase change heat storage heat exchanger comprises circular cooling fins, a vertical pipe, an upper end cover, a shell cylinder and a lower end cover. The plurality of circular cooling fins are vertically distributed at intervals and arranged on the periphery of the vertical pipe in a sleeving manner. The upper end cover is located above the circular cooling fins and fixedly connected with the upper end of the shell cylinder. The lower end cover is located below the circular cooling fins and fixedly connected with the lower end of the shell cylinder. The upper end of the vertical pipe penetrates the upper end cover and is fixedly connected with a through hole in the upper end cover. The lower end of the vertical pipe penetrates the lower end cover and is fixedly connected with a through hole of the lower end cover. According to the sleeve phase change heat storage heat exchanger, phase change materials are heated through cooling of the circular cooling fins on the periphery of the internal flow guide vertical pipe, and the sleeve phase change heat storage heat exchanger has the beneficial effects that the structure is simple, the heat exchange area is enlarged, and the overall heat storage and release efficiency is improved.
Description
Technical field
The present invention relates to technical field of heat exchange, especially a kind of casing tube phase-change regenerative heat exchanger.
Background technology
Thermal storage and energy accumulation technology be the existing energy of Appropriate application regenerative resource and improve efficiency of energy utilization weight
Want technology.Heat storage technology currently mainly includes that sensible heat accumulation of heat, latent-heat storage, chemical reaction accumulation of heat and phase transformation store
Heat.Phase-transition heat-storage utilizes the phase-change materials such as paraffin, aliphatic acid, fuse salt exactly, when material undergoes phase transition
Absorb or release heat and reach to store or the purpose that releases energy, due to the latent heat of material than sensible heat big very
Many, and phase-change material keeps temperature constant, so phase-change heat storage technology has energy storage density when undergoing phase transition
The advantages such as height, exothermic process temperature fluctuation range are little.In recent years, phase-transition heat-storage is widely used in solar heat
The energy-saving field such as utilization, industrial afterheat recovery and heating air conditioning.In applying as thermal storage and energy accumulation technology, core sets
Standby phase change thermal storage heat exchanger has various structures form, and phase change heat accumulator of the prior art, due to structure
Design makes the thermal conductivity factor of phase-change material the most relatively low, and heat exchange area is less, causes overall heat release and storage
The thermal efficiency is relatively low.
Summary of the invention
The technical problem to be solved is to provide a kind of casing tube phase-change regenerative heat exchanger, utilizes internal leading
The circular radiated rib heat radiation of stream standpipe periphery, heats phase-change material, has simple in construction, heat exchange area
Increase, improve overall accumulation of heat and the feature of exothermal efficiency.
The technical solution used in the present invention is:
A kind of casing tube phase-change regenerative heat exchanger, including circular radiated rib, standpipe, upper end cover, outer shell barrel and
Bottom end cover；Described circular radiated rib has a periphery being sleeved on standpipe multiple and the most spaced apart, described on
End cap is positioned at above circular radiated rib and fixes with the upper end of outer shell barrel and is connected, and described bottom end cover is positioned at circle
Fixing below radiated rib and with the lower end of outer shell barrel and be connected, described standpipe upper end is through upper end cover and upper end
The through hole of lid is fixing to be connected, and lower riser end is through bottom end cover and fixing with the through hole of bottom end cover is connected.
Above-mentioned casing tube phase-change regenerative heat exchanger, described circular radiated rib is provided with triangle pod apertures and circle
Pod apertures, described triangle pod apertures is distributed on the circular radiated rib of standpipe periphery, described circular water conservancy diversion
On the pore size distribution circular radiated rib outside triangle pod apertures.
Above-mentioned casing tube phase-change regenerative heat exchanger, described circular radiated rib is paraboloid of revolution shape radiated rib.
Above-mentioned casing tube phase-change regenerative heat exchanger, described circular radiated rib is flat board circular radiating fin.
Above-mentioned casing tube phase-change regenerative heat exchanger, described circular radiated rib has two kinds, is positioned at the circle of riser upper
Shape radiated rib is paraboloid of revolution shape radiated rib, and the circular radiated rib being positioned at standpipe bottom is flat board ring
Shape radiated rib, the quantity of described paraboloid of revolution shape radiated rib is more than flat board circular radiating fin.
Above-mentioned casing tube phase-change regenerative heat exchanger, sets up communicating pipe, on upper end cover and bottom end cover respectively fixing even
Siphunculus, described communicating pipe and outer shell barrel intracavity inter-connection, the external port of communicating pipe is provided with sealing lid.
The casing tube phase-change regenerative heat exchanger that the present invention provides, installs circular radiated rib, increases in standpipe periphery
Add area of dissipation, the circular radiated rib of standpipe periphery arranged triangle pod apertures and circular pod apertures,
Circular radiated rib arranges triangle pod apertures and circular pod apertures, Main Function are: paraffin is melting
Time, solid-liquid confusion region can be there is between solid phase and liquid phase, the solidliquid mixture in solid-liquid confusion region is due to gravity
Effect can slowly flow downward, have after circular radiated rib arranges triangle pod apertures and circular pod apertures
Help the flowing of solidliquid mixture, i.e. enhance the free convection in phase change region.Meanwhile, rotation is used to throw
Object plane shape radiated rib not perforate, when filling paraffin in outer shell barrel inner chamber, paraboloid of revolution shape cooling fin
A lot of air can be remained on the downside of sheet, cause paraffin cannot fill up outer shell barrel inner chamber, so, fin perforate is favourable
Filling in paraffin.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the B-B sectional view in Fig. 1.
In figure, each label is expressed as: standpipe 1, upper end cover 2, outer shell barrel 3, outer shell barrel inner chamber 4, bottom end cover
5, communicating pipe 6, flat board circular radiating fin 7, triangle pod apertures 8, circular pod apertures 9, rotary parabolic
Face shape radiated rib 10.
Detailed description of the invention
See Fig. 1,2.High temperature heat exchanging fluid can use the hot water of solar water heater, heat accumulating phase change material
Optional paraffin, aliphatic acid or fuse salt, the heat accumulating phase change material of preferred version is paraffin, is stored by paraffin
At inner sleeve inner chamber 4.Solar water is entered by standpipe 1 upper port, flows out from standpipe 1 lower port, opens
During the beginning, the paraffin in outer shell barrel inner chamber 4 is solid-state, and solar water flows on the one hand heating paraffin wax, the opposing party
Face transfers heat to paraffin by standpipe 1, and paraffin gradually melts, when paraffin melts completely after absorbing heat
Time, i.e. completing the heat-accumulating process of phase change thermal storage heat exchanger, heat is just stored in paraffin with the form of latent heat.
The reason of employing paraboloid of revolution shape radiated rib 10 is, first can from Unit Weight heat dissipation capacity optimality analysis
Knowing, under certain heat dissipation capacity, the cross section molded line of optimum fin should be paraboloid of revolution shape；Additionally, due to shell
Phase-change material gravity and the effect of free convection in tube inner chamber 4, along flow axes direction, phase change region
Thermograde layer thickness constantly increases, and then expands to whole phase change region, and Isothermal Line Distribution is become by sparse
Intensive, the temperature of upper end is higher than lower end, and now, the optimum shape of fin should be along the side of thermograde maximum
To, use paraboloid of revolution shape radiated rib 10 maximal efficiency fin can be utilized to dispel the heat.
The circular radiated rib being positioned at standpipe 1 top is paraboloid of revolution shape radiated rib 10, is positioned at standpipe 1
The circular radiated rib of bottom is flat board circular radiating fin 7, the quantity of paraboloid of revolution shape radiated rib 10
More than flat board circular radiating fin 7.This scheme can with the heat exchange efficiency bottom stiffened shell tube inner chamber 4,
Because generally the paraffin melting speed bottom outer shell barrel inner chamber 4 is the slowest.
Upper end cover 2 and bottom end cover 5 fix communicating pipe 6 respectively, multiple heat exchangers can be used in series,
Increase the power of heat exchanger.
The present invention can be as the regenerative apparatus of solar energy thermal-power-generating, and phase-change material can use paraffin or molten
Melt salt etc..As a example by solar energy thermal-power-generating hold over system, water is as low-temperature heat exchange fluid, through solar energy collection
Thermal field is heated to be high temperature heat exchanging fluid, and major part high temperature fluid enters steam generator and produces steam for sending out
Electricity, when solar energy resources is more rich, small part high temperature heat exchanging fluid flows into this phase change thermal storage heat exchanger,
Heat exchanging fluid transfers heat to phase-change material, with the form of latent heat by heat storage in phase-change material, treat
When needing to use, completing heat exchange low-temperature heat exchange fluid pumps into this heat exchanger, cryogen is heated
After high temperature fluid, high temperature fluid produces steam through steam generator and is used for generating electricity.So, solar heat
The impact that solar energy thermal-power-generating is brought by Changes in weather just can be independently tackled in generating, even completes power peak regulation
Etc. task.
Claims (6)
1. a casing tube phase-change regenerative heat exchanger, it is characterised in that: include circular radiated rib, standpipe (1), upper end
Lid (2), outer shell barrel (3) and bottom end cover (5)；Described circular radiated rib has multiple and the most spaced apart
Being sleeved on the periphery of standpipe (1), described upper end cover (2) is positioned at above circular radiated rib and and outer shell barrel
(3) upper end is fixing to be connected, described bottom end cover (5) be positioned at below circular radiated rib and with outer shell barrel (3)
Lower end fixing connect, described standpipe (1) upper end passes upper end cover (2) the through hole with upper end cover (2)
Fixing connecting, standpipe (1) lower end is through bottom end cover (5) and fixing with the through hole of bottom end cover (5) is connected.
A kind of casing tube phase-change regenerative heat exchanger the most according to claim 1, it is characterised in that: described circular heat radiation
Fin is provided with triangle pod apertures (8) and circular pod apertures (9), described triangle pod apertures (8) point
Cloth is on the circular radiated rib of standpipe (1) periphery, and described circular pod apertures (9) is distributed in triangle and leads
On the circular radiated rib of discharge orifice (8) outside.
A kind of casing tube phase-change regenerative heat exchanger the most according to claim 2, it is characterised in that: described circular heat radiation
Fin is paraboloid of revolution shape radiated rib (10).
A kind of sleeve pipe radiated rib heat exchanger the most according to claim 2, it is characterised in that: described circular heat radiation
Fin is flat board circular radiating fin (7).
A kind of casing tube phase-change regenerative heat exchanger the most according to claim 2, it is characterised in that: described circular heat radiation
Fin has two kinds, and the circular radiated rib being positioned at standpipe (1) top is paraboloid of revolution shape radiated rib (10),
The circular radiated rib being positioned at standpipe (1) bottom is flat board circular radiating fin (7), the described paraboloid of revolution
The quantity of shape radiated rib (10) is more than flat board circular radiating fin (7).
6. according to a kind of casing tube phase-change regenerative heat exchanger described in claim 3,4 or 5, it is characterised in that: set up
Communicating pipe (6), upper end cover (2) and bottom end cover (5) fix communicating pipe (6), described connection respectively
Pipe (6) is connected with outer shell barrel inner chamber (4), and the external port of communicating pipe (6) is provided with sealing lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471822.7A CN105928407A (en) | 2016-06-25 | 2016-06-25 | Sleeve phase change heat storage heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471822.7A CN105928407A (en) | 2016-06-25 | 2016-06-25 | Sleeve phase change heat storage heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105928407A true CN105928407A (en) | 2016-09-07 |
Family
ID=56829220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610471822.7A Pending CN105928407A (en) | 2016-06-25 | 2016-06-25 | Sleeve phase change heat storage heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105928407A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225542A (en) * | 2016-09-12 | 2016-12-14 | 重庆大学 | A kind of active solid-liquid phase change material recuperated cycle system |
| CN106247434A (en) * | 2016-09-23 | 2016-12-21 | 四川大学 | A kind of based on phase-change accumulation energy and structure-integrated solar heating prefabricated panel |
| CN108775829A (en) * | 2018-07-17 | 2018-11-09 | 南京工业大学 | A kind of rotatable jacket type phase-change accumulation energy storage heater |
| CN111121512A (en) * | 2020-02-24 | 2020-05-08 | 中国科学院理化技术研究所 | Solid phase cold accumulator |
| CN113340137A (en) * | 2021-06-08 | 2021-09-03 | 西安交通大学 | Quick heat-retaining module that disturbance mixes |
-
2016
- 2016-06-25 CN CN201610471822.7A patent/CN105928407A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225542A (en) * | 2016-09-12 | 2016-12-14 | 重庆大学 | A kind of active solid-liquid phase change material recuperated cycle system |
| CN106225542B (en) * | 2016-09-12 | 2018-01-09 | 重庆大学 | A kind of active solid-liquid phase change material recuperated cycle system |
| CN106247434A (en) * | 2016-09-23 | 2016-12-21 | 四川大学 | A kind of based on phase-change accumulation energy and structure-integrated solar heating prefabricated panel |
| CN108775829A (en) * | 2018-07-17 | 2018-11-09 | 南京工业大学 | A kind of rotatable jacket type phase-change accumulation energy storage heater |
| CN111121512A (en) * | 2020-02-24 | 2020-05-08 | 中国科学院理化技术研究所 | Solid phase cold accumulator |
| CN113340137A (en) * | 2021-06-08 | 2021-09-03 | 西安交通大学 | Quick heat-retaining module that disturbance mixes |
| CN113340137B (en) * | 2021-06-08 | 2024-01-26 | 西安交通大学 | Disturbance mixed rapid heat storage module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160907 |