CN102954588B - Heat-pump water heater and water tank thereof - Google Patents
Heat-pump water heater and water tank thereof Download PDFInfo
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- CN102954588B CN102954588B CN201110246739.7A CN201110246739A CN102954588B CN 102954588 B CN102954588 B CN 102954588B CN 201110246739 A CN201110246739 A CN 201110246739A CN 102954588 B CN102954588 B CN 102954588B
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- water tank
- coil pipe
- side coil
- heat
- pump
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Abstract
The invention provides a heat-pump water heater and a water tank thereof. The water tank of the heat-pump water heater comprises a water tank inner container (1) and a heat exchange component, the heat exchange component comprises a side coil pipe (2) which is spirally coiled on the outer side of the side wall of the water tank inner container (1) and provided with a first end and a second end, the first end of the side coil pipe (2) is close to the bottom end of the water tank inner container (1) and provided with a refrigerant outlet, and screw pitch of the side coil pipe (2) is gradually increased in the direction that the bottom end of the water tank inner container (1) faces the top end. The water tank of the heat-pump water heater effectively solves the problems of long heating time, non-uniformity of the upper water temperature and the lower water temperature and low energy efficiency.
Description
Technical field
The present invention relates to Teat pump boiler field, in particular to a kind of heat-pump water-heater water tank and Teat pump boiler.
Background technology
In prior art, heat-pump water-heater water tank comprises inner water tank, is coiled in heat exchange tube assemblies, heat-insulation layer, the tank shell of inner water tank outside, wherein the heat exchange tube assemblies of inner water tank outside comprises side coil pipe and bottom surface coil pipe, all for the heating of water in inner water tank.
The pitch of side coil pipe has two kinds at present, and a kind of is uniform pitch, and side coil pipe is wound around according to same pitch from bottom towards top in inner water tank outside; Another kind be bottom and top pitch not etc., taking certain level line on inner water tank as line of demarcation, line of demarcation is wound around by a kind of less pitch below, line of demarcation is above by larger pitch winding.
In two kinds of above-mentioned heat-pump water-heater water tanks, the first has the defects such as long, upper and lower water temperature of heat time is inhomogeneous, energy efficiency is low, although the second makes moderate progress to above defect, but still there is long, the upper and lower problem that water temperature is inhomogeneous, energy efficiency is low of heat time.
Summary of the invention
The present invention aims to provide heat-pump water-heater water tank and the Teat pump boiler of short and even water temperature of a kind of heat time.
To achieve these goals, according to an aspect of the present invention, provide a kind of heat-pump water-heater water tank, having comprised: inner water tank; Heat exchange tube assemblies, comprise: side coil pipe, be coiled in along helix on the sidewall outside of inner water tank, side coil pipe has first end and the second end, the first end of side coil pipe is near the bottom of inner water tank, the first end of side coil pipe has refrigerant exit, and in the bottom along inner water tank, in the direction on top, the pitch of side coil pipe increases gradually.
Further, the pitch of side coil pipe increases gradually and is linear change.
Further, side coil pipe with the bottom difference in height of inner water tank be H
xthe pitch P at place
xobtain by following formula:
wherein, H
0for the coiling height of side coil pipe, P
0for the initial pitch of the side coil pipe near the bottom of inner water tank, Δ T is with pitch P
0carry out the coiling of side coil pipe, coiling is highly H
0time water in coil pipe end positions place, side inner water tank the temperature difference, α is correction factor, can by experiment and/or calculate P
xfor the bottom difference in height apart from inner water tank is H
xthe pitch of the side coil pipe at place.
Further, the second end of side coil pipe is near the top of described inner water tank, and the first end of side coil pipe is all connected with the sidewall outside of inner water tank by anchorage clip with the second end.
Further, heat exchange tube assemblies also comprises: bottom surface coil pipe, be coiled on the diapire of inner water tank in uniform pitch helix mode, and the first end of bottom surface coil pipe is connected with the second end of side coil pipe by tube connector, and the second end of bottom surface coil pipe has refrigerant import.
Further, bottom surface coil pipe contacts with the diapire of inner water tank by securing bracket, and securing bracket comprises multiple sub-stents that radially extend from inner water tank axial line.
Further, between bottom surface coil pipe and securing bracket, be provided with insulation bolster.
Further, rounded, the D type of the cross section of side coil pipe and/or bottom surface coil pipe, ellipse or rectangle.
Further, side coil pipe is many, between every side coil pipe, is arranged in parallel.
Further, on the coil pipe of side with the sidewall of inner water tank outside contact position be provided with heat conducting coating.
According to a further aspect in the invention, provide a kind of Teat pump boiler, had heat-pump water-heater water tank, heat-pump water-heater water tank is above-mentioned heat-pump water-heater water tank.
Apply technical scheme of the present invention, make full use of the rule that refrigerant moves in the coil pipe of side, it is the second end that refrigerant is introduced into side coil pipe, flow downward to again the first end of side coil pipe along side coil pipe, therefore refrigerant is high in the second end temperature of side coil pipe, first end temperature is low, adopts the pitch of gradual change type can make the heating of water more even.Like this, effectively improve the convection current of hot and cold water in inner water tank, eliminated the inhomogeneous defect of water temperature, thereby shortened the heat time, improve efficiency of energy utilization.
Brief description of the drawings
The Figure of description that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows according to the master of the embodiment of heat-pump water-heater water tank of the present invention and looks schematic diagram;
Fig. 2 shows the cross-sectional schematic of another angle of the heat-pump water-heater water tank of Fig. 1;
Fig. 3 shows according to the water temperature temperature difference in heat-pump water-heater water tank of the present invention and side coil pipe pitch and is related to schematic diagram; And
Fig. 4 shows the elevational schematic view of the heat-pump water-heater water tank of Fig. 1.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Fig. 1 shows according to the master of the embodiment of heat-pump water-heater water tank of the present invention and looks schematic diagram, and Fig. 2 shows the cross-sectional schematic of another angle of the heat-pump water-heater water tank of Fig. 1.In conjunction with referring to shown in Fig. 1 to Fig. 2, as can be seen from the figure, the heat-pump water-heater water tank of the present embodiment, comprising: inner water tank 1 and heat exchange tube assemblies.Wherein, heat exchange tube assemblies comprises: side coil pipe 2, there is first end and the second end, this side coil pipe 2 is coiled in along helix on the sidewall outside of inner water tank 1, the first end of side coil pipe 2 is near the bottom of inner water tank 1, the first end of side coil pipe 2 has refrigerant exit, and in the bottom along inner water tank 1, in top coiling process, the pitch of side coil pipe 2 increases gradually.
In the present embodiment, make full use of the rule that refrigerant moves in side coil pipe 2, refrigerant is introduced into the second end of side coil pipe 2, flow downward to again the first end of side coil pipe 2 along side coil pipe 2, therefore refrigerant is high in the second end temperature of side coil pipe 2, first end temperature is low, adopts the pitch of gradual change type can make the heating of water more even.Like this, effectively improve the convection current of inner water tank 1 interior hot and cold water, eliminated water temperature inhomogeneous defect, thereby shortened the heat time, improve efficiency of energy utilization.
The pitch of side coil pipe 2 increases gradually can be for nonlinear change, or as shown in Figure 3, preferably, the pitch of side coil pipe 2 increases gradually and is linear change.It is easier that linear change is also got up than the variation pattern production operation of other functional relation.
The definite of the pitch of side coil pipe 2 is divided into experiment and calculates or the two method combining.Definite principle of heat exchanger tube pitch is; within the work period of whole heat pump (being that heat-pump water-heater water tank is from starting to start to the whole heating cycle of shutdown); make the water temperature of the lower each several part waterborne in inner water tank consistent as far as possible; and under identical material usage, make systematic function the best.
Preferably, side coil pipe with the bottom difference in height of inner water tank be H
xthe pitch at place obtains by following formula:
wherein, H
0for the coiling height of side coil pipe, P
0for the initial pitch of the side coil pipe near the bottom of inner water tank, Δ T is with pitch P
0carry out the coiling of side coil pipe, coiling is highly H
0time water in coil pipe end positions place, side inner water tank the temperature difference, α is correction factor, can by experiment and/or calculate, in the time that pitch is constant, α=0, P
xfor the bottom H apart from inner water tank
xthe pitch of the side coil pipe at place.The definite of correction factor α is specially, a general given initial value, for example α=0.05, with the pitch of this calculation side face pipe, then record the temperature difference of the water in coil pipe end positions place, side inner water tank, if the temperature difference is undesirable, adjust so the value of α, increase or reduce, again calculating and then test, until obtain the value of rational correction factor α.
The heat-pump water-heater water tank that adopts said method design, is exemplified below:
If side coil pipe quantity is 2, the coiling of side coil pipe is highly 1m, and in the time that the side coil pipe number of turns is 10 circle, in the time that pitch is definite value, in inner water tank, the water temperature difference Δ T of top and the bottom is 2 degree.
If coiling height and the number of turns are constant, in the time adopting gradient pitch, by above-mentioned technical scheme, the initial pitch P of water tank bottom
0for 25mm, derive α=0.01, the pitch P of a certain At The Height on inner water tank through repeatedly testing acquisition optimal performance
xfor 0.02H
x+ 25mm, now, the water temperature difference of top and the bottom levels off to predetermined value in inner water tank, and this predetermined value can be 0.1 DEG C or 0.05 DEG C.Due to the impact of various complicated factors, the predetermined value of water temperature difference cannot approach zero, and the predetermined value of water temperature difference can be chosen as required.
Preferably, the first end of side coil pipe 2 is all connected with the sidewall outside of inner water tank 1 by anchorage clip 8 with the second end, and securing member 8 is close on the sidewall outer surface of inner water tank side coil pipe 2.
Preferably, as shown in Figure 4, heat exchange tube assemblies also comprises: bottom surface coil pipe 6, is coiled on the diapire of inner water tank 1 in uniform pitch helix mode, the first end of bottom surface coil pipe 6 is connected with the second end of side coil pipe 2 by tube connector 4, and the second end of bottom surface coil pipe 6 has refrigerant import.Refrigerant exit at the first end that is positioned at side coil pipe 2 is equipped with valve 5 and valve 7 with the refrigerant import department of the second end that is positioned at bottom surface coil pipe 6, for controlling the turnover of refrigerant.In embodiment shown in figure, the first end of bottom surface coil pipe 6 is positioned at the circumferential edge place of inner water tank 1, extends to the place of bottom center of inner water tank 1, then be coiled on the diapire of inner water tank 1 in uniform pitch helix mode by a bit of arm.Like this, be convenient to the welding of bottom surface coil pipe 6 and tube connector 4.
Preferably, bottom surface coil pipe 6 is connected with the diapire of inner water tank 1 by securing bracket 10, and securing bracket 10 comprises multiple sub-stents that radially extend from inner water tank 1 axial line.In order to reduce wearing and tearing to bottom surface coil pipe 6 and the dissipation of heat, between bottom surface coil pipe 6 and securing bracket 10, be provided with insulation bolster.
Preferably, rounded, the D type of the cross section of side coil pipe 2 and/or bottom surface coil pipe 6, ellipse or rectangle.Preferably, the material of side coil pipe 2 and/or bottom surface coil pipe 6 is copper or aluminium alloy, and the heat conductivility of above-mentioned material is better.
Side coil pipe 2 can arrange one or more as required, in the time arranging many, between every side coil pipe 2, is arranged in parallel, and as shown in Figure 1, in the shown embodiment of this figure, side coil pipe comprises side coil pipe 2 and side coil pipe 3.In addition, it should be noted that as shown in Figure 2, multiple joints 9 are installed on the sidewall of inner water tank 1, in the time carrying out the coiling of side coil pipe 2, need keeping clear of joints 9, that is to say, it is large that the pitch at the place of dodging can suitably become.
Preferably, in order to strengthen heat-conducting effect, on side coil pipe 2 with the sidewall of inner water tank 1 outside contact position be provided with heat conducting coating.
The side coil pipe of above-described embodiment, in the time of process and assemble, can be divided into following step:
The first step: the first end of parallel side coil pipe 2 and side coil pipe 3 is fixed on inner water tank 1 with geometrical clamp 8;
Second step: side coil pipe 2 and side coil pipe 3 are wound around round inner water tank 1 side wall surface according to parameters such as the speed setting, and rise to the position of another geometrical clamp 8 of inner water tank 1 top and fix with the pitch increasing gradually, in winding process, at side coil pipe 2 and the 3 position coated with thermally conductive things that contact with inner bag 1 wall.
The 3rd step: coil pipe 6 use fixed supports 10 in bottom surface are fixed on inner bag 1, and first end is connected with the upper end of side coil pipe 2 and 3 by tube connector 4, and the first end of side coil pipe 2 and side coil pipe 3 is connected with valve 5, and the second end of bottom surface coil pipe 6 is connected with valve 7.
The present invention also provides a kind of Teat pump boiler, has above-mentioned heat-pump water-heater water tank.Short, upper and lower even water temperature of this Teat pump boiler heat time, energy efficiency are high.Other parts about Teat pump boiler refer to prior art, do not repeat them here.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a heat-pump water-heater water tank, comprising:
Inner water tank (1);
Heat exchange tube assemblies, comprising:
Side coil pipe (2), be coiled in along helix on the sidewall outside of described inner water tank (1), described side coil pipe (2) has first end and the second end, the first end of described side coil pipe (2) is near the bottom of described inner water tank (1), the first end of described side coil pipe (2) has refrigerant exit
It is characterized in that, in the bottom along described inner water tank (1), in the direction on top, the pitch of described side coil pipe (2) increases gradually.
2. heat-pump water-heater water tank according to claim 1, is characterized in that, the pitch of described side coil pipe (2) increases gradually and is linear change.
3. heat-pump water-heater water tank according to claim 2, is characterized in that, described side coil pipe (2) with the bottom difference in height of described inner water tank (1) be H
xthe pitch P at place
xobtain by following formula:
Wherein, described H
0for the coiling height of described side coil pipe (2), described P
0for the initial pitch of the described side coil pipe (2) near the bottom of described inner water tank (1), described Δ T is with pitch P
0carry out the coiling of described side coil pipe (2), coiling is highly H
0the temperature difference of the water in inner water tank (1) is stated in Shi Suoshu side coil pipe (2) end positions place, and described α is correction factor, described P
xfor the bottom difference in height of the described inner water tank of distance (1) is described H
xthe pitch of the described side coil pipe (2) at place.
4. heat-pump water-heater water tank according to claim 1, it is characterized in that, the second end of described side coil pipe (2) is near the top of described inner water tank (1), and the first end of described side coil pipe (2) is all connected with the sidewall outside of described inner water tank (1) by anchorage clip (8) with the second end.
5. heat-pump water-heater water tank according to claim 1, is characterized in that, described heat exchange tube assemblies also comprises:
Bottom surface coil pipe (6), be coiled on the diapire of described inner water tank (1) in uniform pitch helix mode, the first end of described bottom surface coil pipe (6) is connected with the second end of described side coil pipe (2) by tube connector (4), and the second end of described bottom surface coil pipe (6) has refrigerant import.
6. heat-pump water-heater water tank according to claim 5, it is characterized in that, described bottom surface coil pipe (6) contacts with the diapire of described inner water tank (1) by securing bracket (10), and described securing bracket (10) comprises multiple sub-stents that radially extend from described inner water tank (1) axial line.
7. heat-pump water-heater water tank according to claim 6, is characterized in that, between described bottom surface coil pipe (6) and securing bracket (10), is provided with insulation bolster.
8. heat-pump water-heater water tank according to claim 5, is characterized in that, the cross section of described side coil pipe (2) and/or described bottom surface coil pipe (6) is rounded, D type, ellipse or rectangle.
9. heat-pump water-heater water tank according to claim 1, is characterized in that, described side coil pipe (2) is many, between every described side coil pipe (2), is arranged in parallel.
10. heat-pump water-heater water tank according to claim 1, is characterized in that, contact position is provided with heat conducting coating outside the upper sidewall with described inner water tank (1) of described side coil pipe (2).
11. 1 kinds of Teat pump boilers, have heat-pump water-heater water tank, it is characterized in that, described heat-pump water-heater water tank is the heat-pump water-heater water tank described in any one in claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110246739.7A CN102954588B (en) | 2011-08-25 | 2011-08-25 | Heat-pump water heater and water tank thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110246739.7A CN102954588B (en) | 2011-08-25 | 2011-08-25 | Heat-pump water heater and water tank thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102954588A CN102954588A (en) | 2013-03-06 |
| CN102954588B true CN102954588B (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110246739.7A Expired - Fee Related CN102954588B (en) | 2011-08-25 | 2011-08-25 | Heat-pump water heater and water tank thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840672A (en) * | 2011-06-22 | 2012-12-26 | 江苏迈能高科技有限公司 | Heating coil of air source heat pump water heater |
| CN105333614B (en) * | 2015-11-17 | 2017-12-26 | 珠海格力电器股份有限公司 | Heat-pump water-heater water tank |
| CN106123343A (en) * | 2016-06-30 | 2016-11-16 | 珠海格力电器股份有限公司 | A kind of insulation reserving liquid tank and water heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201368590Y (en) * | 2009-02-09 | 2009-12-23 | 浙江康盛股份有限公司 | Heat pump water heater of a heat exchanger which adopts micro-channels |
| CN201449014U (en) * | 2009-06-03 | 2010-05-05 | 王高元 | Water box of water heater of heat pump |
| CN202229408U (en) * | 2011-08-25 | 2012-05-23 | 珠海格力电器股份有限公司 | Heat-pump water heater and water tank thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8472794B2 (en) * | 2009-01-16 | 2013-06-25 | Lori PERRY | Apparatus with expansion chamber providing large heat distribution |
-
2011
- 2011-08-25 CN CN201110246739.7A patent/CN102954588B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201368590Y (en) * | 2009-02-09 | 2009-12-23 | 浙江康盛股份有限公司 | Heat pump water heater of a heat exchanger which adopts micro-channels |
| CN201449014U (en) * | 2009-06-03 | 2010-05-05 | 王高元 | Water box of water heater of heat pump |
| CN202229408U (en) * | 2011-08-25 | 2012-05-23 | 珠海格力电器股份有限公司 | Heat-pump water heater and water tank thereof |
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| Publication number | Publication date |
|---|---|
| CN102954588A (en) | 2013-03-06 |
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Granted publication date: 20141008 |
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