CN204678928U - Casing type heat exchanging device and there is its carbon dioxide heat pump water heater - Google Patents
Casing type heat exchanging device and there is its carbon dioxide heat pump water heater Download PDFInfo
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- CN204678928U CN204678928U CN201520305183.8U CN201520305183U CN204678928U CN 204678928 U CN204678928 U CN 204678928U CN 201520305183 U CN201520305183 U CN 201520305183U CN 204678928 U CN204678928 U CN 204678928U
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Abstract
The utility model relates to a kind of casing type heat exchanging device and has its carbon dioxide heat pump water heater.Particularly, the utility model provides a kind of casing type heat exchanging device, and it can comprise: outer tube, and its two ends have the outer tube import and outer tube outlet that supply fluid inflow and outflow outer tube respectively; Manage in many that extend within the outer tube, in every root, the two ends of pipe have the interior pipe import and inner tube outlet that supply this interior pipe of fluid inflow and outflow respectively, wherein at least part of pipeline section of many interior pipes is wound around in the shape of a spiral each other, and in every root the outer wall of pipe and the contact internal walls of outer tube against.In addition, the utility model additionally provides a kind of carbon dioxide heat pump water heater with this casing type heat exchanging device.Because pipe has the section of extending spirally in every root in this casing type heat exchanging device, and every root inner and outer tubes contact against, and significantly improve the heat exchange coefficient carrying out heat exchange between the fluid in interior pipe and the fluid in outer tube.
Description
Technical field
The utility model relates to art of heat pumps, particularly relates to a kind of casing type heat exchanging device and has its carbon dioxide heat pump water heater.
Background technology
Teat pump boiler generality can comprise outer machine, water tank, water circulation pipe and circulating pump, its China and foreign countries owner will be made up of several large parts such as compressor, casing type heat exchanging device, throttling arrangement and evaporimeters, its operation principle is the cooling that is condensed after entering casing type heat exchanging device by the cold media gas of compressor operating generation high pressure-temperature, then arrive throttling arrangement and carry out throttling expansion, after enter evaporimeter and absorb the heat of vaporization of air and become low-pressure steam, low pressure refrigerant steam is inhaled into compressor and is again compressed into high temperature and high pressure gas.Water circulation pipe can be configured in the water lead-in bushing formula heat-exchanger rig in water tank, and after the refrigerant heating in quilt cover tubular heat exchange device, drainage returns water tank, becomes high temperature to make the cold water of water tank from low temperature.
But, existing casing type heat exchanging device adopts pipe and an outer tube in one usually, inner and outer tubes are coaxially arranged, refrigerant and water is made to carry out the heat exchange area of heat exchange little, heat exchange efficiency is lower, is not especially suitable for and adopts carbon dioxide as in the trans-critical carbon dioxide heat pump water heater of refrigerant.In addition, in family expenses carbon dioxide heat pump water heater, because volume trends towards miniaturization, the discharge of water heater is smaller, structure is all compacter, casing type heat exchanging device is required to reach large heat transfer effect further in little space, and existing casing type heat exchanging device can not meet this requirement.
Utility model content
An object of the utility model first aspect is intended at least one defect overcoming existing casing type heat exchanging device, provides a kind of casing type heat exchanging device of novelty, significantly improves the heat exchange coefficient of casing type heat exchanging device.
A further object of the utility model first aspect is the compact conformation making casing type heat exchanging device.
An object of the utility model second aspect is to provide a kind of carbon dioxide heat pump water heater with above-mentioned casing type heat exchanging device.
According to first aspect of the present utility model, the utility model provides a kind of casing type heat exchanging device for carbon dioxide heat pump water heater, and it comprises:
Outer tube, its two ends have the outer tube import and outer tube outlet that supply outer tube described in fluid inflow and outflow respectively; With
Manage in many that extend in described outer tube, in described in every root, the two ends of pipe have the interior pipe import and inner tube outlet that supply this interior pipe of fluid inflow and outflow respectively, wherein
At least part of pipeline section of described many interior pipes is wound around in the shape of a spiral each other, and
In described in every root the outer wall of pipe and the contact internal walls of described outer tube against.
Alternatively, the spiral helicine pipeline section that is wound in of described many interior pipes contacts against each other.
Alternatively, described interior pipe is two, in described two interior Guan Zhongyi roots pipe whole pipeline section and in another whole pipeline sections of pipe be mutually wound around in double helix shape.
Alternatively, in described in every root, the lead angle being wound in spiral helicine pipeline section of pipe is 55 ° to 70 °.
Alternatively, in described in every root, the interior pipe import of pipe closes on one end of described outer tube, and in described in every root, the inner tube outlet of pipe closes on the other end of described outer tube, flows in the same direction to make the fluid in many described interior pipes.
Alternatively, in described in every root, the interior pipe import of pipe closes on the outer tube outlet of described outer tube, in described in every root, the inner tube outlet of pipe closes on the outer tube import of described outer tube, to make the reverse fluid flow heat exchange in described in the fluid in described in every root in pipe and described outer tube and every root between pipe.
Alternatively, in described in every root, the fluid of Bottomhole pressure is carbon dioxide; Described outer tube and the fluid often flowed between interior pipe described in root are water.
According to second aspect of the present utility model, the utility model provides a kind of carbon dioxide heat pump water heater, it comprises: any one casing type heat exchanging device above-mentioned, in every root of described casing type heat exchanging device, the interior pipe import of pipe utilizes pipeline to be connected to the refrigerant exit of the compressor of described carbon dioxide heat pump water heater, and in described in every root, the inner tube outlet of pipe utilizes pipeline to be connected to the refrigerant import of the throttling arrangement of described carbon dioxide heat pump water heater.
Alternatively, described carbon dioxide heat pump water heater also comprises: housing, its demarcation strip having base plate and be installed on described base plate, and the accommodation cavity that described demarcation strip is configured to described housing to limit is separated into compressor chamber and wind pushing cavity; And described casing type heat exchanging device is positioned at described wind pushing cavity, and be installed on described base plate; Described compressor and described throttling arrangement are arranged in described compressor chamber.
Alternatively, the outer tube import of the outer tube of described casing type heat exchanging device utilizes pipeline to be connected to tap water pipe network, and the outlet of the outer tube of the outer tube of described casing type heat exchanging device utilizes pipeline to be connected to user's grid or the water tank of water after storing the heating of described casing type heat exchanging device; Or, described carbon dioxide heat pump water heater also comprises the water tank of the water after storing the heating of described casing type heat exchanging device, the bottom of described water tank utilizes pipeline to be connected to the outer tube import of the outer tube of described casing type heat exchanging device via circulating pump, and the outer tube outlet of the outer tube of described casing type heat exchanging device utilizes pipeline to be connected to the top of described water tank.
Casing type heat exchanging device of the present utility model and during there is its carbon dioxide heat pump water heater because pipe has the section of extending spirally in every root, and every root inner and outer tubes contact against, significantly improve the heat exchange area carrying out heat exchange between the fluid in interior pipe and the fluid in outer tube, and then improve the heat exchange coefficient carrying out heat exchange between the fluid in the interior pipe of casing type heat exchanging device and the fluid in outer tube.
Further, due to casing type heat exchanging device of the present utility model and during there is its carbon dioxide heat pump water heater, in every root, pipe has the section of extending spirally, disturbance during pipe lateral fluid flowing in every root can be accelerated, the stratosphere of thinning fluid flowing, further increases the heat exchange coefficient of casing type heat exchanging device.
Further, due to casing type heat exchanging device of the present utility model and during there is its carbon dioxide heat pump water heater, at least part of pipeline section of many interior pipes is wound around in the shape of a spiral each other, significantly decreases the volume of casing type heat exchanging device, can make the compact conformation of casing type heat exchanging device.
According to hereafter by reference to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present utility model with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the schematic diagram of the casing type heat exchanging device cross section according to the utility model embodiment;
Fig. 2 is the schematic local structural graph of the casing type heat exchanging device vertical section according to the utility model embodiment;
Fig. 3 is the schematic diagram of the carbon dioxide heat pump water heater according to the utility model embodiment;
Fig. 4 is the schematic diagram of the carbon dioxide heat pump water heater according to the utility model embodiment.
Detailed description of the invention
Fig. 1 is the schematic diagram of the casing type heat exchanging device cross section according to the utility model embodiment.As shown in Figure 1 also with reference to figure 2, the utility model embodiment provides a kind of casing type heat exchanging device 20, it has higher heat exchange coefficient, at least improves 12% than the heat exchange coefficient of existing casing type heat exchanging device, is specially adapted to carbon dioxide heat pump water heater.The many interior pipes 22 that this casing type heat exchanging device 20 comprises outer tube 21 and extends in outer tube 21.The two ends of outer tube 21 have the outer tube import and outer tube outlet that supply fluid inflow and outflow outer tube 21 respectively, namely one end of outer tube 21 is provided with outer tube import, the other end of outer tube 21 is provided with outer tube outlet, flows out to make fluid from outer tube import inflow outer tube 21 and to flow and export from outer tube after carrying out heat exchange with the fluid in interior pipe 22 between outer tube 21 and interior pipe 22.In every root, the two ends of pipe 22 have the interior pipe import and inner tube outlet that supply this interior pipe 22 of fluid inflow and outflow respectively.Especially, at least part of pipeline section of many interior pipes 22 is wound around in the shape of a spiral each other, and in every root the outer wall of pipe 22 and the contact internal walls of outer tube 21 against.Preferably, the spiral helicine pipeline section that is wound in of many interior pipes 22 contacts against each other.
Particularly, interior pipe 22 is two, in two interior pipes 22 an interior pipe 22 whole pipeline section and in another whole pipeline sections of pipe 22 be mutually wound around in double helix shape.
The many interior pipes 22 due to this casing type heat exchanging device 20 occupy the comparatively large inner space of outer tube 21 substantially, in order to ensure the unobstructed of fluid flowing in outer tube 21 and every root between pipe 22, the lead angle being wound in spiral helicine pipeline section of pipe 22 in every root is configured to 55 ° to 70 °.That is, in every root, the lead angle being wound in spiral helicine pipeline section of pipe 22 all can be 55 ° to 70 °, and such as, in every root, the lead angle being wound in spiral helicine pipeline section of pipe 22 all can be 60 °, 65 ° etc.
In embodiments more of the present utility model, in order to prevent carrying out heat exchange between two interior pipes 22, in every root, the interior pipe import of pipe 22 closes on one end of outer tube 21, and in every root, the inner tube outlet of pipe 22 closes on the other end of outer tube 21, flows in the same direction to make the fluid in many interior pipes 22.Further, in every root, the interior pipe import of pipe 22 closes on the outer tube outlet of outer tube 21, in every root, the inner tube outlet of pipe 22 closes on the outer tube import of outer tube 21, to make the reverse fluid flow heat exchange in fluid in every root in pipe 22 and outer tube 21 and every root between pipe 22, to improve the heat exchanger effectiveness of casing type heat exchanging device 20 further.In every root, in pipe 22, the fluid of flowing is carbon dioxide.In outer tube 21 and often root, between pipe 22, the fluid of flowing is water.
Fig. 3 is the schematic diagram of the carbon dioxide heat pump water heater according to the utility model embodiment, and in figure, solid arrow represents the flow direction of carbon dioxide, and dotted arrow represents the flow direction of water.The utility model embodiment still provides a kind of carbon dioxide heat pump water heater, and it is primarily of several large parts composition such as compressor 10, casing type heat exchanging device 20, throttling arrangement 30 and evaporimeter 40.This casing type heat exchanging device 20 is the casing type heat exchanging device 20 in above-mentioned any embodiment.In every root of this casing type heat exchanging device 20, the interior pipe import of pipe 22 utilizes pipeline to be connected to the refrigerant exit of the compressor 10 of carbon dioxide heat pump water heater, and in every root, the inner tube outlet of pipe 22 utilizes pipeline to be connected to the refrigerant import of the throttling arrangement 30 of carbon dioxide heat pump water heater.The outer tube import of the outer tube 21 of casing type heat exchanging device 20 can utilize pipeline to be connected to tap water pipe network, the outlet of the outer tube of the outer tube 21 of casing type heat exchanging device 20 utilize pipeline to be connected to user's grid or store casing type heat exchanging device 20 heat after the water tank of water.
The operation principle of the carbon dioxide heat pump water heater of the utility model embodiment is worked after the cold media gas that produces high pressure-temperature enters casing type heat exchanging device 20 by compressor 10 to be lowered the temperature by the water condensation flowed through in this casing type heat exchanging device 20, that is cold media gas heats water, then arrive throttling arrangement 30 and carry out throttling expansion, after enter the heat of vaporization that evaporimeter 40 absorbs air and become low-pressure steam, low pressure refrigerant steam is inhaled into compressor 10 and is again compressed into high temperature and high pressure gas.Water after cold media gas heating can store and be used by user, or is directly used by user.
In alternate embodiment more of the present utility model, carbon dioxide heat pump water heater also can comprise water tank.This water tank can be configured to the water after storing the heating of casing type heat exchanging device 20, the bottom of water tank utilizes pipeline to be connected to the outer tube import of the outer tube 21 of casing type heat exchanging device 20 via circulating pump, and the outer tube outlet of the outer tube 21 of casing type heat exchanging device 20 utilizes pipeline to be connected to the top of water tank.The operation principle of this carbon dioxide heat pump water heater is worked after the cold media gas that produces high pressure-temperature enters casing type heat exchanging device 20 by compressor 10 to be lowered the temperature by the circulating water condensing flowed through in this casing type heat exchanging device 20, to heat recirculated water, then arrive throttling arrangement 30 and carry out throttling expansion, after enter the heat of vaporization that evaporimeter 40 absorbs air and become low-pressure steam, low pressure refrigerant steam is inhaled into compressor 10 and is again compressed into high temperature and high pressure gas.Circulating pump and compressor 10 operate simultaneously, with in the water circulation inflow heat exchanger making the temperature in water tank lower to be heated, then circular flow recovery tank, until the water temperature in water tank reaches preset temperature.
Fig. 4 is the schematic diagram of the carbon dioxide heat pump water heater according to the utility model embodiment.In the utility model embodiment, carbon dioxide heat pump water heater also comprises housing 50.Housing 50 can comprise base plate 51 and be installed on the demarcation strip 52 of base plate 51, and the accommodation cavity that demarcation strip 52 is configured to housing 50 to limit is separated into compressor 10 chamber and wind pushing cavity.Compressor 10 and throttling arrangement 30 are arranged in compressor 10 chamber.Casing type heat exchanging device 20 is positioned at wind pushing cavity, and is installed on base plate 51, with the idle space making carbon dioxide heat pump water heater effectively utilize air channel, can make the rational in infrastructure compact, convenient for installation and maintenance of carbon dioxide heat pump water heater.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present utility model is illustrate and described herein detailed, but, when not departing from the utility model spirit and scope, still can directly determine or derive other modification many or amendment of meeting the utility model principle according to content disclosed in the utility model.Therefore, scope of the present utility model should be understood and regard as and cover all these other modification or amendments.
Claims (10)
1. for a casing type heat exchanging device for carbon dioxide heat pump water heater, it is characterized in that, comprising: outer tube, its two ends have the outer tube import and outer tube outlet that supply outer tube described in fluid inflow and outflow respectively; With
Manage in many that extend in described outer tube, in described in every root, the two ends of pipe have the interior pipe import and inner tube outlet that supply this interior pipe of fluid inflow and outflow respectively, at least part of pipeline section of wherein said many interior pipes is wound around in the shape of a spiral each other, and described in every root in the outer wall of pipe and the contact internal walls of described outer tube against.
2. casing type heat exchanging device according to claim 1, is characterized in that, the spiral helicine pipeline section that is wound in of described many interior pipes contacts against each other.
3. casing type heat exchanging device according to claim 1, is characterized in that, described interior pipe is two, in described two interior Guan Zhongyi roots pipe whole pipeline section and in another whole pipeline sections of pipe be mutually wound around in double helix shape.
4. casing type heat exchanging device according to claim 1, is characterized in that, in described in every root, the lead angle being wound in spiral helicine pipeline section of pipe is 55 ° to 70 °.
5. casing type heat exchanging device according to claim 1, it is characterized in that, in described in every root, the interior pipe import of pipe closes on one end of described outer tube, and in described in every root, the inner tube outlet of pipe closes on the other end of described outer tube, flows in the same direction to make the fluid in many described interior pipes.
6. casing type heat exchanging device according to claim 5, it is characterized in that, in described in every root, the interior pipe import of pipe closes on the outer tube outlet of described outer tube, in described in every root, the inner tube outlet of pipe closes on the outer tube import of described outer tube, to make the reverse fluid flow heat exchange in described in the fluid in described in every root in pipe and described outer tube and every root between pipe.
7. casing type heat exchanging device according to claim 6, is characterized in that, in described in every root, the fluid of Bottomhole pressure is carbon dioxide; Described outer tube and the fluid often flowed between interior pipe described in root are water.
8. a carbon dioxide heat pump water heater, it is characterized in that, comprise: the casing type heat exchanging device according to any one of claim 1 to 7, in every root of described casing type heat exchanging device, the interior pipe import of pipe utilizes pipeline to be connected to the refrigerant exit of the compressor of described carbon dioxide heat pump water heater, and in described in every root, the inner tube outlet of pipe utilizes pipeline to be connected to the refrigerant import of the throttling arrangement of described carbon dioxide heat pump water heater.
9. carbon dioxide heat pump water heater according to claim 8, it is characterized in that, also comprise: housing, its demarcation strip having base plate and be installed on described base plate, the accommodation cavity that described demarcation strip is configured to described housing to limit is separated into compressor chamber and wind pushing cavity; And described casing type heat exchanging device is positioned at described wind pushing cavity, and be installed on described base plate; Described compressor and described throttling arrangement are arranged in described compressor chamber.
10. carbon dioxide heat pump water heater according to claim 8, it is characterized in that, the outer tube import of the outer tube of described casing type heat exchanging device utilizes pipeline to be connected to tap water pipe network, and the outlet of the outer tube of the outer tube of described casing type heat exchanging device utilizes pipeline to be connected to user's grid or the water tank of water after storing the heating of described casing type heat exchanging device; Or
Described carbon dioxide heat pump water heater also comprises the water tank of the water after storing the heating of described casing type heat exchanging device, the bottom of described water tank utilizes pipeline to be connected to the outer tube import of the outer tube of described casing type heat exchanging device via circulating pump, and the outer tube outlet of the outer tube of described casing type heat exchanging device utilizes pipeline to be connected to the top of described water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520305183.8U CN204678928U (en) | 2015-05-12 | 2015-05-12 | Casing type heat exchanging device and there is its carbon dioxide heat pump water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520305183.8U CN204678928U (en) | 2015-05-12 | 2015-05-12 | Casing type heat exchanging device and there is its carbon dioxide heat pump water heater |
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| CN204678928U true CN204678928U (en) | 2015-09-30 |
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| CN201520305183.8U Active CN204678928U (en) | 2015-05-12 | 2015-05-12 | Casing type heat exchanging device and there is its carbon dioxide heat pump water heater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339805A (en) * | 2017-08-23 | 2017-11-10 | 湖南埃瓦新能源科技有限公司 | Air energy thermal water installations |
| CN107782195A (en) * | 2016-08-31 | 2018-03-09 | 青岛海尔新能源电器有限公司 | A kind of water heater double-tube heat exchanger water pipe cleaning method and water heater |
| CN114018073A (en) * | 2021-11-09 | 2022-02-08 | 清华大学 | Air cooler and transcritical heat pump system with same |
-
2015
- 2015-05-12 CN CN201520305183.8U patent/CN204678928U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782195A (en) * | 2016-08-31 | 2018-03-09 | 青岛海尔新能源电器有限公司 | A kind of water heater double-tube heat exchanger water pipe cleaning method and water heater |
| CN107339805A (en) * | 2017-08-23 | 2017-11-10 | 湖南埃瓦新能源科技有限公司 | Air energy thermal water installations |
| CN114018073A (en) * | 2021-11-09 | 2022-02-08 | 清华大学 | Air cooler and transcritical heat pump system with same |
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