CN211119996U - Heat-conducting graphite paper heat exchange structure for water storage tank of air energy water heater - Google Patents
Heat-conducting graphite paper heat exchange structure for water storage tank of air energy water heater Download PDFInfo
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- CN211119996U CN211119996U CN201921980675.1U CN201921980675U CN211119996U CN 211119996 U CN211119996 U CN 211119996U CN 201921980675 U CN201921980675 U CN 201921980675U CN 211119996 U CN211119996 U CN 211119996U
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- heat
- graphite paper
- conducting
- heat exchanger
- inner container
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Abstract
The utility model provides a heat-conducting graphite paper heat exchange structure for a water storage tank of an air energy water heater, which comprises heat-conducting graphite paper, a heat exchanger and an inner container wall, wherein water is stored in the inner container wall, the heat-conducting graphite paper is attached to the outer wall of the inner container wall, the heat exchanger is arranged outside the heat-conducting graphite paper, through the compressibility of the heat-conducting graphite paper, the heat exchanger, the heat-conducting graphite paper and the outer wall of the inner container are fixed together through the heat-conducting glue at the gap between the heat exchanger and the inner container, thereby realizing seamless combination, the utility model has reasonable design and convenient use, replaces the heat-conducting glue with the heat-conducting graphite paper, processes the high-purity scaly graphite after expansion, prepares the heat-conducting graphite paper, solves the problem of slow heat exchange between the heat exchanger and the inner container, the whole heating efficiency of the air energy water heater is greatly improved, and the problems of complex production process, unstable quality control and environment influence of heat conducting glue coating are solved.
Description
Technical Field
The utility model relates to a heat exchanger field, concretely relates to heat conduction graphite paper heat transfer structure for air can water heater storage water tank.
Background
The air energy water heater is characterized in that heat in air is collected, an inner container filled with cold water is heated through a heat exchanger, hot water for life required by people is obtained, and meanwhile the purpose of energy conservation is achieved. Compared with a common electric water heater, the air energy water heater can save more than half of electricity, and the market scale of the air energy water heater is in a high-speed development state.
The heat exchanger of the air energy water heater is commonly provided with two structures, namely a copper coil and a micro-channel, wherein the copper coil is in hard contact with the inner container wall, and the copper coil is in contact with the tangent plane of the cylindrical surface, so that the contact area is very small, and the heat exchange efficiency is very low; although the micro-channel is in surface contact with the inner container wall, a gap exists between the micro-channel and the outer wall of the inner container due to the integral flatness, the size of the two sections of collecting pipes and the like, and heat exchange is influenced. In order to improve the heat exchange efficiency, heat conducting glue is coated at the contact part of the bottom of the copper coil pipe and the microchannel and the outer wall of the inner container, so that the speed of the heat exchanger for transferring heat to the inner container is increased, and the aim of improving the heat exchange efficiency is fulfilled; meanwhile, the number of turns of the copper coil pipe is increased for increasing the area, and the cost is greatly increased.
When the heat-conducting glue is coated, the heat-conducting glue must be uniformly coated along the bottom of the heat exchanger, the production process is complex, and the quality control is difficult to stabilize. And when the product life is abandoned due in the future, the heat-conducting glue is difficult to treat as a dangerous waste product of environmental protection management and control, and the environment is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above-mentioned not enough, provide the heat conduction graphite paper heat transfer structure that is used for air energy water heater storage water tank.
The utility model aims at realizing through the following technical scheme:
a heat conduction graphite paper heat transfer structure for air can water heater storage water tank, including heat conduction graphite paper, heat exchanger and inner bag wall, the inside water that has stored up of inner bag wall, the outer wall of inner bag wall adheres to the laminating and has heat conduction graphite paper, and the heat conduction graphite paper outside is provided with the heat exchanger, and compressibility through heat conduction graphite paper makes between heat exchanger, heat conduction graphite paper and the inner bag outer wall, and the clearance department of heat exchanger and inner bag is together fixed through heat conduction glue, realizes seamless combination.
The heat exchanger is a copper coil type or micro-channel type heat exchanger.
The thickness of the heat-conducting graphite paper is 0.2 mm-6 mm, and the density is 0.5-2 g/cc.
4 independent copper pipe channels are arranged in the micro-channel heat exchanger.
The utility model discloses following profitable effect has:
the utility model relates to a rationally, convenient to use replaces the heat conduction glue with heat conduction graphite paper, reprocesses behind the high-purity scaly graphite inflation, prepares heat conduction graphite paper, has solved the slow problem of heat transfer between heat exchanger and the inner bag to promote the whole efficiency of heating of air energy water heater by a wide margin, solve simultaneously and scribble the problem that the heat conduction glue production technology is complicated, matter accuse is unstable and influence the environment.
Drawings
Fig. 1 is a schematic structural view of a copper coil heat exchanger of the present invention;
fig. 2 is the schematic structural diagram of the microchannel heat exchanger of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1 and 2, a heat conduction graphite paper heat transfer structure for air can water heater storage water tank, including heat conduction graphite paper 1, heat exchanger and inner bag wall 3, the inside water that has stored up of inner bag wall 3, the outer wall of inner bag wall 3 adheres to the laminating and has heat conduction graphite paper 1, the heat conduction graphite paper 1 outside is provided with the heat exchanger, through the compressibility of heat conduction graphite paper, make the heat exchanger, between heat conduction graphite paper and the inner bag outer wall, the clearance department of heat exchanger and inner bag is together fixed through heat conduction glue, realize seamless combination.
The heat exchanger is a copper coil type 2 or a micro-channel type heat exchanger 7.
The thickness of the heat-conducting graphite paper is 0.2 mm-6 mm, and the density is 0.5-2 g/cc.
4 independent copper pipe channels are arranged in the micro-channel heat exchanger.
In the first heat transfer process 4: compared with the heat-conducting glue with the heat conductivity coefficient of 1-3.5 w/m.k, the heat transfer speed is at least improved by more than 3-7 times without considering the increase of contact tightness and area.
In the second heat transfer process 5: taking graphite paper with the thickness of 1mm as an example, compared with the inner container wall with the thickness of 3mm and the heat conductivity coefficient of 45-50 w/m.k, on the premise of ensuring the original heat transfer effect when coating the heat-conducting glue, the heat transfer speed is improved by more than 3 times through the heat transfer of the heat-conducting graphite paper in the parallel direction.
By integrating the heat transfer processes 4 and 5, when the third heat transfer 6 heats water, the heat transfer speed of the heat conduction graphite paper to the water from the heat exchanger can be increased by 10-20 times compared with that of the heat conduction glue in the heat exchange process of the air energy water heater water storage tank, in the test of the 200L air energy water heater complete system, under the condition that all conditions are unchanged, the heat conduction graphite paper is only used for replacing the heat conduction glue, the heating time can be shortened by 30%, and the whole efficiency is increased by only 20%.
The heat can be rapidly transferred to each position of the outer wall of the inner container through the heat-conducting graphite paper, and through heating the water at the bottom, the convection heating of the water in the whole inner container can be realized, and cold water dead angles are eliminated.
The heat-conducting graphite paper has the advantages of better heat conductivity than copper, compressibility, rebound resilience, certain toughness of high and low temperature resistance (-50-400 ℃), easy cutting, convenient packaging and transportation and the like, and is used for replacing heat-conducting glue.
According to the difference of the copper coil or the micro-channel heat exchanger, heat-conducting graphite paper with different thicknesses (the thickness is usually more than 0.2mm and less than 6 mm) and different densities (0.5-2 g/cubic centimeter) is selected as required to replace heat-conducting glue. According to the outer diameter of the inner container and the size of the cylindrical surface, heat-conducting graphite paper with the area equivalent to that of the cylindrical surface is selected, the heat-conducting graphite paper is tightly attached to the outer wall of the inner container, the copper coil pipe or the micro-channel heat exchanger is firmly attached to the outer side of the inner container, and the heat exchanger, the heat-conducting graphite paper and the outer wall of the inner container are combined in a seamless mode through compressibility of the heat-conducting graphite paper, so.
The inner container of the water storage type water tank is partially and completely attached and attached by heat-conducting graphite paper, and a fastening heat exchanger is arranged on the outer side of the inner container.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (4)
1. A heat conduction graphite paper heat transfer structure for air can water heater storage water tank, including heat conduction graphite paper, heat exchanger and inner bag wall, its characterized in that: the inside water that has stored up of inner bag wall, the laminating of inner bag wall outer wall is adhered to has heat conduction graphite paper, and the heat conduction graphite paper outside is provided with the heat exchanger, through the compressibility of heat conduction graphite paper, makes between heat exchanger, heat conduction graphite paper and the inner bag outer wall, and the clearance department of heat exchanger and inner bag is fixed together through heat conduction glue, realizes seamless combination.
2. The heat conducting graphite paper heat exchange structure for the water storage tank of the air energy water heater as claimed in claim 1, wherein: the heat exchanger is a copper coil type or micro-channel type heat exchanger.
3. The heat conducting graphite paper heat exchange structure for the water storage tank of the air energy water heater as claimed in claim 1, wherein: the thickness of the heat-conducting graphite paper is 0.2 mm-6 mm, and the density is 0.5-2 g/cc.
4. The heat conducting graphite paper heat exchange structure for the water storage tank of the air energy water heater as claimed in claim 2, wherein: 4 independent copper pipe channels are arranged in the micro-channel heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921980675.1U CN211119996U (en) | 2019-11-17 | 2019-11-17 | Heat-conducting graphite paper heat exchange structure for water storage tank of air energy water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921980675.1U CN211119996U (en) | 2019-11-17 | 2019-11-17 | Heat-conducting graphite paper heat exchange structure for water storage tank of air energy water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211119996U true CN211119996U (en) | 2020-07-28 |
Family
ID=71702302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921980675.1U Expired - Fee Related CN211119996U (en) | 2019-11-17 | 2019-11-17 | Heat-conducting graphite paper heat exchange structure for water storage tank of air energy water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211119996U (en) |
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2019
- 2019-11-17 CN CN201921980675.1U patent/CN211119996U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20201117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |