CN201575589U - Heatpump water heater - Google Patents
Heatpump water heater Download PDFInfo
- Publication number
- CN201575589U CN201575589U CN2009203513988U CN200920351398U CN201575589U CN 201575589 U CN201575589 U CN 201575589U CN 2009203513988 U CN2009203513988 U CN 2009203513988U CN 200920351398 U CN200920351398 U CN 200920351398U CN 201575589 U CN201575589 U CN 201575589U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- condenser
- heat exchange
- exchanger tube
- water heater
- 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.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000003507 refrigerant Substances 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 238000012546 transfer Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 210000000664 rectum Anatomy 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a heatpump water heater, which belongs to the technical field of the water heater. The water heater comprises a heatpump system composed of a compressor, a condenser, a throttling element and an evaporator. The condenser is arranged in the water tank of the water heater to form a heat exchange structure. The condenser is formed by at least two heat exchange tubes in serial connection along the refrigerant flow direction. The flow area of the front heat exchange tube is more than that of the rear heat exchange tube. The heat exchange capability of the condenser is effectively improved, thus the heatpump performance can be effectively promoted too when the heat exchange areas are the same. In case of ensuring the good running effect of the heatpump, the heat exchange area and the weight as required for the condenser are dramatically reduced, thus effectively saving materials and manufacture cost and reducing the structural size, which can raise the reliability. The simple and practical structure and process reduce the cost and increase the market competitiveness of the product.
Description
Technical field
The utility model relates to a kind of Teat pump boiler, and the heat exchanger structure that relates in particular to Teat pump boiler improves, and belongs to technical field of water heaters.
Background technology
Teat pump boiler has good energy-saving effect, therefore development in recent years is rapid, at present in the low capacity Teat pump boiler in the static heated type unit of extensive use, the fluorine water-to-water heat exchanger places hot-water cylinder inside usually, water body was heated to temperature requiredly outside the cold-producing medium high-temperature steam will manage by heat exchanger tube in pipe, also had the portioned product employing that condensing heat-exchanging pipe is around in the etching problem of hot-water cylinder outer wall with the solution built-in heat exchanger outward.Simultaneously, the fluorine water-to-water heat exchanger that is adopted in the existing Teat pump boiler such as is at the built-in or externally-wound type fluorine water-to-water heat exchanger of caliber, and its heat-transfer capability is lower.Tracing it to its cause, mainly is that along with increasing of condensation water, the liquid film between moist steam and tube wall is progressive additive also, becomes the major obstacle of heat exchange because condensing heat-exchange belongs to complicated two phase flow heat transfer, causes the condenser exchange capability of heat to descend.And this type of heat exchanger materials expends more, the cost height, and weight is big, and it is big to take up room, and concentrates and causes occurring integrity problem because of various corrosion and stress occurring easily.Many producers have to match less heat exchanger for saving cost, and the result brings the reduction of heat pump heating capacity and Energy Efficiency Ratio (COP) thereof again.
The utility model content
The purpose of this utility model is: at the shortcoming that above-mentioned prior art exists, propose a kind of not only heat exchange efficiency height but also can significantly reduce the Teat pump boiler of manufacturing cost.
The applicant recognizes after the correlative study carrying out: how to select suitable parameters such as condenser pipe internal diameter, so that each condensation phase all has the higher coefficient of heat transfer in the condensation overall process, particularly effectively reduce the condensation water film thickness that accumulates in the tube wall place, and it is too many to avoid the flow resistance of cold-producing medium in condenser to increase, thereby adapt with the work of the parts such as compressor of respective volume, to improve the complete machine operational effect, be the key issue place that needs solution.
In order to reach above purpose, Teat pump boiler of the present utility model comprises the heat pump that compressor, condenser, restricting element, evaporimeter constitute; Described condenser is placed in the water tank place of water heater, constitutes heat exchange structure; Its improvements are: described condenser is in series by at least two sections heat exchanger tubes along the flow of refrigerant direction, and the circulation area of leading portion heat exchanger tube that is in the cold-producing medium upstream is greater than the circulation area of back segment heat exchanger tube.
The utility model further improves, and described leading portion is that 2-4, length ratio are 0.8～1 with the ratio of the circulation area of back segment, and effect is even more ideal.
Existing isometrical heat exchange of heat pipe is at the condensation initial stage, the condensation heat transfer intensity of cold-producing medium is big, coefficient of heat transfer height, but along with increasing of the liquid measure of condensing, being attached in the condenser pipe particularly, the condensation water of middle and lower part forms liquid film step by step, increased and the outer heat exchange thermal resistance of pipe, caused the whole condensation effect of heat exchanger that obvious reduction is arranged.
And after adopting technique scheme of the present utility model, the condensation process that cold-producing medium takes place in condenser is strengthened by segmentation, when entering full-blown film condensation after the stage, because heat exchange tube diameter dwindles, improve flow velocity by reducing cross-sectional flow area, thereby attenuate thickness of liquid film, significantly promoted the exchange capability of heat in this stage.
The utility model is owing to the exchange capability of heat of condenser effectively improves, therefore when heat exchange area is identical, can effectively improve heat pump performance, guaranteeing that heat pump obtains under the prerequisite of good operational effect, significantly reduce required heat exchange area of condenser and weight, effectively save material and processing cost thereof, reduce physical dimension, bring the raising of reliability thus, and structure and technology is simple and practical, has then reduced cost, has improved the competitiveness of product in market.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the perspective view of the utility model condenser.
Fig. 2 is the plane projection view of Fig. 1 embodiment.
Fig. 3 is the side view of Fig. 2.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the structural representation of the utility model embodiment one.
Fig. 6 is the structural representation of the utility model embodiment two.
Sequence number is among the figure: leading portion heat exchanger tube 1, back segment heat exchanger tube 2, air inlet communicating pipe 3, refrigerant vapour inlet 4, refrigerant outlet 5, hot water outlet 6, cooling water inlet 7, reducing coil pipe 8, water tank 9, shell 10, inner bag 11.
The specific embodiment
The typical structure of the utility model condenser as shown in Figures 1 to 4, be characterized in being in series by leading portion heat exchanger tube 1 and back segment heat exchanger tube 2 along the flow of refrigerant direction, and the latus rectum of leading portion heat exchanger tube is greater than the latus rectum of back segment heat exchanger tube, two sections latus rectum ratio is that 1.7 (the circulation area ratio is approximately 3), length ratio are 1, and its concrete applicating example is as follows:
Embodiment one
The Teat pump boiler structure of present embodiment is the preferred embodiment of utility model as shown in Figure 5: in the small-sized household Teat pump boiler, comprise the heat pump that compressor, reducing condenser, restricting element, evaporimeter constitute.Wherein the reducing condenser of leading portion heat exchanger tube 1 and back segment heat exchanger tube 2 series connection formations---reducing coil pipe 8 is built in (condenser adopts the single channel heat exchange but not the multichannel shunting) in the heat storage water tank 9, and wherein one-level coil pipe internal diameter in back is less than previous stage, and length and previous stage are suitable.
During work, the cold-producing medium of heat pump enters leading portion heat exchanger tube 1 by refrigerant vapour inlet 4, at process back segment heat exchanger tube 2, flow out by reducing coil pipe 8 outer air inlet communicating pipe 3 to refrigerant outlets 5, and the cold water at the water source that comes from the outside enters water tank 9 by cooling water inlet 7, after 8 direct heat transfers of reducing coil pipe, from hot water outlet 6 output hot water.Filling heat insulating wall between the inner bag 11 of water tank 9 and the shell 10.
The Teat pump boiler of present embodiment and the comparative test of original like product such as following table (test condition sees Table, and is the Teat pump boiler nominal condition, about 15 ℃ of water initial temperature).
This shows, the clear superiority of present embodiment is, owing to adopted this simple and practical mode of reducer pipe, at the principal contradiction in the condensing heat-exchange process is that the middle and later periods heat exchange characteristic is carried out enhanced heat exchange, obtain good heat exchange effect, simultaneously do not increase the explained hereafter difficulty again, reduce effectively that material expends and cost, thereby lay a good foundation for design high-efficiency heat pump hot-water device.
| Project | The isometrical coil pipe of 1# | 2# reducing coil pipe | 2# is than 1# difference |
| Compressor | Compressor name refrigerating capacity 2000W, | Compressor name refrigerating capacity 2000W, |
| Project | The isometrical coil pipe of 1# | 2# reducing coil pipe | 2# is than 1# difference |
| Caliber mm | 14×2 | 14×2+10×2 | |
| Coil lengths m | 19.5 | 11.5+8 | |
| Weight kg | 11.6 | 10 | -14％ |
| Average heating capacity kW during 15～55 ℃ of water temperatures | 2.3 | 2.3 | |
| Average COP during 15～55 ℃ of water temperatures | 3.4 | 3.6 | 5.8％ |
Embodiment two
Another embodiment of the present utility model as shown in Figure 6, outer inner bag 11 outer walls that are around in water tank 9 of condensing heat-exchange reducing coil pipe 8 are arranged in heat-insulation layer, thereby carry out indirect heat exchange with water in the inner bag, its integral body is incubated by heat-insulation layer.
After experiment showed, the employing present embodiment, the condensation side exchange capability of heat also is significantly improved, and effectively reduces required heat exchange area, therefore significantly saves material, reduces manufacturing cost.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (7)
1. a Teat pump boiler comprises the heat pump that compressor, condenser, restricting element, evaporimeter constitute; Described condenser is placed in the water tank place of water heater, constitutes heat exchange structure; It is characterized in that: described condenser is in series by at least two sections heat exchanger tubes along the flow of refrigerant direction, and the circulation area of leading portion heat exchanger tube that is in the cold-producing medium upstream is greater than the circulation area of back segment heat exchanger tube.
2. Teat pump boiler according to claim 1 is characterized in that: described leading portion heat exchanger tube is 2-4 with the ratio of the circulation area of back segment heat exchanger tube.
3. Teat pump boiler according to claim 1 is characterized in that: the length ratio of described leading portion heat exchanger tube and back segment heat exchanger tube is 0.8～1.
4. according to claim 1,2 or 3 described Teat pump boilers, it is characterized in that: the reducing coil pipe of described condenser for constituting by leading portion heat exchanger tube and the series connection of back segment heat exchanger tube.
5. Teat pump boiler according to claim 4 is characterized in that: described reducing coil pipe is built in the water tank of water heater.
6. Teat pump boiler according to claim 4 is characterized in that: described reducing coil pipe is around in the inner water tank outer wall of water heater outward.
7. Teat pump boiler according to claim 6 is characterized in that: filling heat insulating wall between the inner bag of described water-heater water tank and the shell, described reducing coil pipe is arranged in heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203513988U CN201575589U (en) | 2009-12-26 | 2009-12-26 | Heatpump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203513988U CN201575589U (en) | 2009-12-26 | 2009-12-26 | Heatpump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201575589U true CN201575589U (en) | 2010-09-08 |
Family
ID=42695466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203513988U Expired - Lifetime CN201575589U (en) | 2009-12-26 | 2009-12-26 | Heatpump water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201575589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322687A (en) * | 2011-09-23 | 2012-01-18 | 舒方硕 | The heat exchange attemperator of Teat pump boiler |
| CN101839547B (en) * | 2009-12-26 | 2012-04-18 | 艾欧史密斯(中国)热水器有限公司 | Heat pump water heater |
-
2009
- 2009-12-26 CN CN2009203513988U patent/CN201575589U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839547B (en) * | 2009-12-26 | 2012-04-18 | 艾欧史密斯(中国)热水器有限公司 | Heat pump water heater |
| CN102322687A (en) * | 2011-09-23 | 2012-01-18 | 舒方硕 | The heat exchange attemperator of Teat pump boiler |
| CN102322687B (en) * | 2011-09-23 | 2014-03-12 | 舒方硕 | Heat-exchanging heat-preserving device of heat pump water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100908 Effective date of abandoning: 20091226 |