CN205717927U - Heat exchanger and phase-change heat storage electric water heater - Google Patents
Heat exchanger and phase-change heat storage electric water heater Download PDFInfo
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- CN205717927U CN205717927U CN201620354163.4U CN201620354163U CN205717927U CN 205717927 U CN205717927 U CN 205717927U CN 201620354163 U CN201620354163 U CN 201620354163U CN 205717927 U CN205717927 U CN 205717927U
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- heat exchanger
- exchanger tube
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Abstract
The open a kind of heat exchanger of the utility model and phase-change heat storage electric water heater, wherein, this heat exchanger is in phase-change heat storage electric water heater, and described heat exchanger includes the heat exchanger tube with the first end and the second end, and the outer wall concave-convex surface of described heat exchanger tube is arranged.Technical solutions of the utility model are while ensureing bigger heat exchange area, it can be avoided that electric heater volume is excessive.
Description
Technical field
The utility model relates to technical field of water heaters, particularly to a kind of heat exchanger and phase-change heat-storage electricity
Water heater.
Background technology
Phase-change energy storage electric water heater is by filling phase-change material in inner bag, and heat exchanger tube is embedded in phase
Becoming in material, utilizing phase-change material heat enthalpy value high, the big advantage of energy storage density, by thermal energy storage in phase transformation
In material.When hot water is needed, cold water carries out heat exchange by heat exchanger tube and phase-change material, to displace
The heat storing in phase-change material.
Current existing phase-change energy storage electric water heater is in order to increase heat exchange area, typically by setting in inner bag
Put more heat exchanger tube to realize.But, more heat exchanger tube is big owing to taking volume, so will cause
Electric heater volume is excessive.
Utility model content
Main purpose of the present utility model is to provide a kind of heat exchanger, it is intended to ensure bigger heat exchange area
Simultaneously, it is to avoid water heater volume is excessive.
For achieving the above object, the heat exchanger that the utility model proposes, is used for phase-change heat storage electric water heater
In, described heat exchanger includes the heat exchanger tube with the first end and the second end, and the outer wall of described heat exchanger tube is recessed
Convex is arranged.
Preferably, the outer wall of described heat exchanger tube is provided with multiple groove, and described groove is set around described heat exchanger tube
Outer wall and formed ring-type.
Preferably, multiple described grooves are uniformly distributed along the length direction of described heat exchanger tube.
Preferably, the outer wall of described heat exchanger tube forms described groove towards pipe sunken inside.
Preferably, described heat exchanger includes least one set heat exchanger tube, often organizes described heat exchanger tube and includes many edges
The pipeline being arranged side by side on first direction and being sequentially connected with.
Preferably, described heat exchanger includes organizing described heat exchanger tube more, and the described heat exchanger tube of many groups is in a second direction
It is arranged side by side, and be sequentially connected with；Described second direction is vertical with described first direction.
Preferably, along described first direction, the pipeline of heat exchanger tube described in two adjacent groups is crisscross arranged.
Preferably, on the length direction along described pipeline, the recess on heat exchanger tube described in two adjacent groups is handed over
Wrong setting.
Preferably, described heat exchanger also includes fin, is formed convex between adjacent two recesses of described heat exchanger tube
Portion, each described protuberance is equipped with fin.
Preferably, described fin is in the form of a ring, and is sheathed on described heat exchanger tube.
The utility model also proposes a kind of phase-change heat storage electric water heater, including casing, electric heater and change
Hot device, is filled with phase-change material in described casing, described heat exchanger is arranged in described casing, described electricity
Heater is for the medium heating in described heat exchanger.
Preferably, described electric heater has multiple, and multiple described electric heaters are positioned at described casing,
And described heat exchanger tube is arranged alternately with many groups.
Preferably, described electric heater is plate-shaped.
Preferably, described phase-change heat storage electric water heater includes controller, and described electric heater is provided with use
In the temperature sensor of the described phase-change material temperature of detection, described temperature sensor is connected with described controller,
And the temperature value that described controller is detected according to described temperature sensor, control the energising of described electric heater
Or power-off.
By the outer wall of heat exchanger tube is arranged to concavo-convex form in the utility model, then with plain tube
In the case that the external diameter in road is identical, the jog of the utility model heat exchanger tube makes the surface area of heat exchanger tube more
Greatly, i.e. bigger with the heat exchange area of phase change material contacts, it is more beneficial for phase-change material exchange heat pipe and quickly add
Heat.Additionally, on the premise of there is identical heat exchange area with smooth tube, heat exchanger tube of the present utility model
Increase heat exchange area owing to being provided with jog, therefore for smooth tube, this heat exchanger tube
Maximum outside diameter can arrange less, is i.e. more beneficial for reducing the overall volume of electric heater.
Brief description
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing of required use in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only some embodiments of the present utility model, for ordinary skill people
From the point of view of Yuan, on the premise of not paying creative work, can also obtain according to the structure shown in these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is the cut-away illustration of the utility model phase-change heat storage electric water heater one embodiment；
Fig. 2 is the cut-away illustration in Fig. 1 at A-A.
Drawing reference numeral illustrates:
| Label | Title | Label | Title |
| 11 | Shell | 31 | Recess |
| 12 | Insulation material | 32 | Water inlet pipe |
| 13 | Inner bag | 33 | Outlet pipe |
| 20 | Phase-change material | 40 | Fin |
| 30 | Heat exchanger tube | 50 | Electric heater |
The realization of the utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings into
One step explanation.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, to the technology in the utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only of the present utility model one
Section Example, rather than whole embodiments.Based on the embodiment in the utility model, this area is general
The every other embodiment that logical technical staff is obtained under the premise of not making creative work, broadly falls into
The scope of the utility model protection.
It is to be appreciated that if the utility model embodiment relates to directionality instruction (such as upper and lower, left,
It is right, forward and backward ...), then directionality instruction is only used for explaining in a certain particular pose (as shown in drawings)
Under relative position relation between each parts, motion conditions etc., if this particular pose changes,
Then directionality instruction also correspondingly changes therewith.
If in addition, the utility model embodiment relates to the description of " first ", " second " etc., then should
The description of " first ", " second " etc. is only used for describing purpose, and it is not intended that indicate or imply its phase
To importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", "
Two " feature can express or implicitly include at least one this feature.In addition, each embodiment it
Between technical scheme can be combined with each other, but must be to can be implemented as with those of ordinary skill in the art
Basis, when technical scheme combination occur conflicting or cannot realize when will be understood that this technical scheme
Combination do not exist, also not the utility model require protection domain within.
The utility model proposes a kind of heat exchanger, this heat exchanger is in phase-change heat storage electric water heater.
In the utility model embodiment, as depicted in figs. 1 and 2, this phase-change heat storage electric water heater includes
Shell the 11st, inner bag the 13rd, heat exchanger and electric heater 50.Wherein, inner bag 13 is positioned at shell 11, one
In embodiment, in order to reduce scattering and disappearing of heat in inner bag 13, improve inner bag 13 heat insulation effect, at inner bag 13
And it is filled with insulation material 12 between shell 11.
Heat exchanger is arranged in inner bag 13, and heat exchanger includes heat exchanger tube 30, and one end of heat exchanger tube 30 is
One end, the other end is the second end.In one embodiment, the first end connects water inlet pipe 32, this water inlet pipe 32
Stretch out outside shell 11, connect with outside cold water source；Second end is connected with outlet pipe 33, and this outlet pipe 33 is stretched
Go out outside shell 11, be used for providing hot water can be connected with gondola water faucet for user, such as outlet pipe 33.At another
In embodiment, this heat exchanger may be used for Multi-stage heating, as this electric heater has the outside being separately provided
Water route and heat exchanger tube, the two ends of heat exchanger tube are connected by exterior line, and form an end to end circulation
It is provided with heat transferring medium, such as conduction oil or water etc. in heat exchanging pipe, and this circulating heat exchanging pipe.Outside water route
Adjacent cycle heat exchanging pipe arrange, and with circulating heat exchanging pipe generation heat exchange, with in heat external water route
Water, for for user after the water in outside water route is heated.
For improving the firing rate to water, being filled with phase-change material 20 in inner bag 13, phase-change material 20 is straight
Connect and contact with heat exchanger tube 30, for the heat of accumulation is passed to heat exchanger tube 30, flow through heat exchanger tube with heating
Water in 30.Electric heater 50 is for heating to heat exchanger tube 30.In one embodiment, electric heater 50
In inner bag 13, and heat to by heating phase-change material 20 heat exchanger tube 30.Certainly, electric heater 50
May be alternatively located at outside inner bag 13, and be arranged at water inlet pipe 32, for directly the water flowing through water inlet pipe 32 being added
Heat.
In order to increase the heat exchange area of heat exchanger tube 30, the outer wall concave-convex surface of heat exchanger tube 30 of the present utility model
Arrange, as can indentation or helical form etc..This concavo-convex concrete shape is not carried out by the utility model
Limit, as long as the form of recess 31 and protuberance can be formed at the outer wall of heat exchanger tube 30.
By the outer wall of heat exchanger tube 30 is arranged to concavo-convex form in the utility model, then with smooth
In the case that the external diameter of pipeline is identical, the jog of the utility model heat exchanger tube 30 makes the table of heat exchanger tube 30
Area is bigger, and the heat exchange area i.e. contacting with phase-change material 20 is bigger, is more beneficial for phase-change material 20 and exchanges
Heat pipe 30 quickly heats.Additionally, on the premise of there is identical heat exchange area with smooth tube, this practicality
Novel heat exchanger tube 30 increases heat exchange area owing to being provided with jog, therefore relative to smooth tube
Speech, the maximum outside diameter of this heat exchanger tube 30 can arrange less, is i.e. more beneficial for reducing the whole of electric heater
Body volume.
Owing to the utility model uses heat exchanger tube 30 mode of heating, this mode of heating is only for required
The water yield using heats, and relative to arranging storage tank, and heats the water in whole storage tank
Mode, there is firing rate fast, the high advantage of the efficiency of heating surface, and there is not slough, and can keeping away
Exempt from the waste of the energy, and equipment volume can be reduced greatly.Additionally, it is bigger relative to using volume
Storage tank enters luggage water, and this storage tank must have a form of bigger bearing capacity, of the present utility model changes
Heat pipe 30 is placed in inner bag 13, requires relatively low to the load performance of inner bag 13 so that inner bag 13 can set
It is set to various shape, such as cylinder or cube shape etc..
In one embodiment, the outer wall of heat exchanger tube 30 is provided with multiple groove, and groove is set around heat exchanger tube
The outer wall of 30 and formed ring-type.In the present embodiment, this groove forms the recess 31 of heat exchanger tube 30, and should
The wall of groove is preferably semicircular arc, and the wall of semicircle arcuation is conducive to processing, and can reduce stress collection
In.In order to be further ensured that uniform heat exchange, in the present embodiment, multiple grooves are preferably along the length of heat exchanger tube 30
Degree direction is uniformly distributed.Specifically, groove is formed towards pipe sunken inside by the outer wall of heat exchanger tube 30, then at pipe
Inside being correspondingly formed projection, projection is equally also in the form of a ring.Which is used to form groove, it can be avoided that heat exchange
Pipe 30 wall is blocked up.Heat exchanger tube 30 is equivalent to form reducing, the i.e. internal diameter of heat exchanger tube 30 at boss
Alternately change in size.This projection can slow down water velocity, makes water fully connect with heat exchanger tube 30 inwall
Touch to carry out heat exchange, action of turbulent flow can also be played simultaneously, make water that heat transfer constantly to occur to carry out alternately,
Thus the water flow temperature that is guaranteed on same cross section close to or consistent, it is achieved uniformly transfer heat.
In one embodiment, heat exchanger includes least one set heat exchanger tube 30, often organizes heat exchanger tube 30 and includes many
The pipeline that (left and right in Fig. 1 to) is arranged side by side and is sequentially connected with in the first direction.Specifically, adjacent
Connected by an arc section between pipeline, and form U-tube.I.e. often organize the S-shaped setting of heat exchanger tube 30,
This arranges form and makes heat exchanger tube 30 compact conformation, small volume.Certainly, also permissible between adjacent channel
Connected by a straight tube.For improving the efficiency of heating surface of phase-change heat storage electric water heater, at a preferred embodiment
In, heat exchanger includes organizing heat exchanger tube 30 more, many group heat exchanger tubes 30 (before and after in Fig. 1 to) in a second direction
It is arranged side by side, and be sequentially connected with.In this embodiment, second direction is vertical with first direction.The heat exchange of many groups
Pipe 30 can be to be sequentially connected in series, it is also possible to is in parallel, or the mode using parallel connection and serial connection to mix connects.
In other embodiments, heat exchanger tube 30 also can be arranged in the shape of a spiral.
Owing to being filled with phase-change material 20 in inner bag 13, for ensureing that heat exchanger tube 30 connects with phase-change material 20
Between heat transfer effect more preferable, in the present embodiment, going up in the first direction, two adjacent groups heat exchanger tube 30
Pipeline is crisscross arranged, and hypotelorism between the adjacent channel of two adjacent groups heat exchanger tube 30 i.e. can be avoided to send out
Thermal phenomenon is robbed in life.Preferably, the recess on the length direction along pipeline, on two adjacent groups heat exchanger tube 30
31 are also crisscross arranged equally, and that so can avoid the recess 31 on two adjacent groups heat exchanger tube 30 robs heat now
As.
For improving the heat transfer rate of heat exchanger tube 30 further, it is preferable that heat exchanger also includes fin 40, changes
Form protuberance between adjacent two recesses 31 of heat pipe 30, each protuberance is equipped with a fin 40.This reality
Executing in example, owing to fin 40 is metal material, good heat conductivity, heat conduction is fast, can be by phase transformation material around
The heat of material 20 is rapidly transferred to heat exchanger tube 30, thus accelerates the heat transfer rate of heat exchanger tube 30.Meanwhile,
The form that the recess 31 of fin 40 and heat exchanger tube 30 is arranged alternately, beneficially recess 31 thermally equivalent.
In one embodiment, fin 40 is in the form of a ring, and is sheathed on heat exchanger tube 30.This is arranged in the form of a ring
Fin 40, owing to the distance away from heat exchanger tube 30 center for the periphery is consistent, be therefore transmitted to by fin 40
Heat on heat exchanger tube 30 outer wall is more uniform.
For making the water in heat exchanger tube 30 faster be heated, in one embodiment, the electrical heating in electric heater
Device 50 has multiple, and multiple electric heaters 50 are arranged alternately with many group heat exchanger tubes 30.Arrange multiple electricity to add
Hot device 50 can improve heating power, makes phase-change material 20 accumulate the time used during identical heat shorter.
Electric heater 50 is arranged alternately with heat exchanger tube 30, and i.e. two electric heaters 50 clamp one group of heat exchanger tube 30, should
Two electric heaters 50 heat the phase-change material 20 of this group heat exchanger tube 30 both sides respectively, this group heat exchanger tube 30 energy
Enough acquisition heats from the phase-change material 20 of both sides simultaneously, thus improve the heat exchange rate of heat exchanger tube 30.
Simultaneously as electric heater 50 has multiple, and heater is arranged alternately with heat exchanger tube 30, because of
This, the temperature of phase-change material 20 everywhere is closer to, thus the uniform heat exchange of beneficially heat exchanger tube 30.
First direction and second direction are preferably horizontal direction, and first direction is preferably the length of shell 11
Direction, second direction is the width of shell 11, and the pipeline of i.e. same group of heat exchanger tube 30 is along shell
The length direction arrangement of 11, the thickness direction often organizing heat exchanger tube 30 along shell 11 is arranged side by side, therefore,
For ensureing to get more uniform heat along the heat exchanger tube 30 in shell 11 short transverse,
In the present embodiment, electric heater 50 is plate-shaped, and this plate-shaped electric heater 50 is along shell 11
Short transverse extends.
For realizing the intelligentized control method to electric heater 50, in the present embodiment, electric heater also includes control
Device, electric heater 50 is provided with the temperature sensor for detecting phase-change material 20 temperature, TEMP
Device is connected with controller, and the temperature value that controller is detected according to temperature sensor, controls electric heater
50 energisings or power-off.
Specifically, can phase-change material 20 be heated opening electric heater 50, so that phase-change material 20
Accumulation heat.And when the heat of phase-change material 20 accumulation reaches certain value, i.e. when temperature sensor detection
To the temperature of phase-change material 20 of contact electric heater 50 reach preset value when, controller controls electrical heating
Device 50 power-off.When user needs to use hot water, cold water flows through heat exchanger tube 30 from the first end, and constantly with
Phase-change material 20 heat exchange around so that the temperature of phase-change material 20 declines, and when temperature sensor inspection
Measuring when dropping to another preset value at a temperature of phase-change material 20, controller control electric heater 50 is again
Open and phase-change material 20 is heated.So avoid electric heater 50 always on and cause
Energy waste.
These are only preferred embodiment of the present utility model, not thereby limit patent model of the present utility model
Enclose, every under inventive concept of the present utility model, utilize the utility model specification and accompanying drawing content institute
The equivalent structure transformation made, or directly/be indirectly used in other related technical fields and be included in this practicality
In novel scope of patent protection.
Claims (14)
1. a heat exchanger, in phase-change heat storage electric water heater, it is characterised in that described heat exchanger
Including have the first end and the heat exchanger tube of the second end, the outer wall concave-convex surface of described heat exchanger tube is arranged.
2. heat exchanger as claimed in claim 1, it is characterised in that the outer wall of described heat exchanger tube is provided with many
Individual groove, described groove is set around described heat exchanger tube outer wall and is formed ring-type.
3. heat exchanger as claimed in claim 2, it is characterised in that multiple described grooves are along described heat exchange
The length direction of pipe is uniformly distributed.
4. heat exchanger as claimed in claim 2, it is characterised in that the outer wall of described heat exchanger tube is interior towards pipe
Cave in and form described groove.
5. the heat exchanger as described in Claims 1-4 any one, it is characterised in that described heat exchanger
Including least one set heat exchanger tube, often organize described heat exchanger tube include many in the first direction on be arranged side by side and depend on
The pipeline of secondary connection.
6. heat exchanger as claimed in claim 5, it is characterised in that described in described heat exchanger includes organizing more
Heat exchanger tube, the described heat exchanger tube of many groups is arranged side by side in a second direction, and is sequentially connected with；Described second direction
Vertical with described first direction.
7. heat exchanger as claimed in claim 6, it is characterised in that along described first direction, phase
Described in adjacent two groups, the pipeline of heat exchanger tube is crisscross arranged.
8. heat exchanger as claimed in claims 6 or 7, it is characterised in that in the length along described pipeline
On direction, the recess on heat exchanger tube described in two adjacent groups is crisscross arranged.
9. the heat exchanger as described in Claims 1-4 any one, it is characterised in that described heat exchanger
Also include fin, form protuberance between adjacent two recesses of described heat exchanger tube, each described protuberance is all provided with
There is fin.
10. heat exchanger as claimed in claim 9, it is characterised in that described fin in the form of a ring, and overlaps
It is located on described heat exchanger tube.
11. 1 kinds of phase-change heat storage electric water heaters, including fill in casing and electric heater, described casing
There is phase-change material, it is characterised in that described electric heater also includes such as claim 1 to 10 any one
Described heat exchanger, described heat exchanger is arranged in described casing, and described electric heater is for changing to described
Medium heating in hot device.
12. phase-change heat storage electric water heaters as claimed in claim 11, it is characterised in that described electricity adds
Hot utensil has multiple, and multiple described electric heaters are positioned at described casing, and described heat exchanger tube is handed over many groups
For setting.
13. phase-change heat storage electric water heaters as claimed in claim 12, it is characterised in that described electricity adds
Hot device is plate-shaped.
14. phase-change heat storage electric water heaters as described in claim 11 to 13 any one, its feature
Being, described phase-change heat storage electric water heater includes controller, and described electric heater is provided with for detecting
The temperature sensor of described phase-change material temperature, described temperature sensor is connected with described controller, and institute
State the temperature value that controller is detected according to described temperature sensor, control described electric heater energising or disconnected
Electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620354163.4U CN205717927U (en) | 2016-04-25 | 2016-04-25 | Heat exchanger and phase-change heat storage electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620354163.4U CN205717927U (en) | 2016-04-25 | 2016-04-25 | Heat exchanger and phase-change heat storage electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205717927U true CN205717927U (en) | 2016-11-23 |
Family
ID=57294761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620354163.4U Active CN205717927U (en) | 2016-04-25 | 2016-04-25 | Heat exchanger and phase-change heat storage electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205717927U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524208A (en) * | 2017-09-29 | 2017-12-29 | 广西昊薪来新能源有限公司 | Family's waste water of bath apparatus for reusing residual heat |
| CN108227791A (en) * | 2017-12-12 | 2018-06-29 | 常州禾吉纺织品有限公司 | A kind of oil bath heating temperature regulating device |
| CN108981436A (en) * | 2017-06-02 | 2018-12-11 | 美的集团股份有限公司 | Heat exchanger and water heater |
| WO2020151467A1 (en) * | 2019-01-21 | 2020-07-30 | 深圳市爱能森科技有限公司 | Heat storage device of phase change material |
-
2016
- 2016-04-25 CN CN201620354163.4U patent/CN205717927U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981436A (en) * | 2017-06-02 | 2018-12-11 | 美的集团股份有限公司 | Heat exchanger and water heater |
| CN107524208A (en) * | 2017-09-29 | 2017-12-29 | 广西昊薪来新能源有限公司 | Family's waste water of bath apparatus for reusing residual heat |
| CN108227791A (en) * | 2017-12-12 | 2018-06-29 | 常州禾吉纺织品有限公司 | A kind of oil bath heating temperature regulating device |
| WO2020151467A1 (en) * | 2019-01-21 | 2020-07-30 | 深圳市爱能森科技有限公司 | Heat storage device of phase change material |
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