CN206192174U - Change energy -conserving air heat exchanger of frost - Google Patents
Change energy -conserving air heat exchanger of frost Download PDFInfo
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- CN206192174U CN206192174U CN201621052366.4U CN201621052366U CN206192174U CN 206192174 U CN206192174 U CN 206192174U CN 201621052366 U CN201621052366 U CN 201621052366U CN 206192174 U CN206192174 U CN 206192174U
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- heat exchanger
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- frost
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Abstract
The utility model provides a change energy -conserving air heat exchanger of frost, includes air heat exchanger, the shell sets up thermal insulating layer between characterized by air heat exchanger's the inner wall and the internal surface of shell. The utility model discloses can show the reductionization frost and pass through the shell cycle to external low temperature environment air conduction's heat, white cycle of reductionizations, white efficiency of improvementization and air heat exchanger's heat exchange efficiency, adopt in low temperature quick -freeze storehouse the utility model discloses, reduced the total heat of changing the frost input and changed the frost time, reduced and changed the frost and cause fluctuation of temperature in the freezer, the quality of freezing article in the refrigeration efficiency that has improved the freezer and the freezer, in the air source heat pump heating, the adoption the utility model discloses, can effectively improve the temperature range in heat supply efficiency and heat supply area, the energy saving.
Description
Technical field
The utility model belongs to a kind of air heat exchanger, particularly a kind of air heat exchanger of defrost energy-conservation.
Background technology
The existing air heat exchanger with defrosting function is typically all used to be exchanged heat with the air less than 0 °C, works as heat exchanger tube
Or the surface temperature of fin be less than 0 °C when, the water vapour in ventilating air will be separated out from air and freeze and be attached to heat exchange
The surface of device, had both hindered heat transfer, and the passage of air circulation is blocked again, caused the decline of heat exchange efficiency and heat exchange amount, when serious,
Heat exchange will be caused cannot effectively be carried out, in order to solve this problem, when heat exchanger frosting, open defrosting function, i.e., when due to
When frosting causes degradation of heat exchange performance to exceed a certain setting value, start defrosting function, air heat exchanger is heated, make its temperature
Degree is higher than 0 °C, makes to freeze and be attached to the melts Cheng Shui on air heat exchanger, is discharged from the discharge outlet of heat exchanger, defrost
During, add and be generally acknowledged that three parts to the heat of heat exchanger, Part I is used to be lifted the temperature of heat exchanger, it and change
The thermal capacity of the temperature of heat exchanger and heat exchanger is related when frost starts, and Part II is used to melt frost, and environment is lower, and frosting is got over
Many, the heat that this part needs is bigger.Part III is to be delivered to ring of the surrounding less than 0 °C by the shell of air heat exchanger
In the air of border, because defrost needs for the temperature of air heat exchanger to be heated to more than 0 °C, and continue for some time, so heat exchange
Numerical value of the temperature of device ambient air less than 0 °C is bigger, then conduct heat stronger, and the defrost heat of loss is more, causes sky
The amplitude that the final heat exchange efficiency of gas heat exchanger declines is bigger.For example, the air heat exchanger in low-temperature quick-freezing storehouse is applied, to carry
Defrost efficiency high, it has to increase the heat of defrost and the time of defrost, ultimately result in many heat transfers to the air of freezer
In, cause the fluctuation of temperature of ice house, increased the run time of freezer refrigerating equipment, cause decline and the energy of refrigerating efficiency
Waste.Again for example, in air source heat pump heating system, air heat exchanger is responsible for the work that heat is absorbed from surrounding air,
But when the cold north uses, due to defrost excessive cycle, defrost frequency is too high, causes the heating performance system of air source heat pump
Number cop values decline to a great extent, or even have to switch to auxiliary electrical heater program, and direct electricity consumption heat supply causes the energy and equipment investment
Waste, reduce the temperature range of air source heat pump heat supply application.Since carrying the air heat exchanger application of defrost, Ren Menyi
It is straight to attempt to improve its defrost and heat exchange efficiency, shorten the time in defrost cycle, particularly after air source heat pump appearance, to expand it
The temperature range of application, improves its coefficient of performance in heating cop values, and people do a lot of work（See reference document 1-5）, advance
Technological progress with defrosting function air heat exchanger, but until band defrosting function air heat exchanger is not solved today yet in defrost
The excessive problem of cycle consumed energy.
Utility model content
The purpose of this utility model is to provide a kind of air heat exchanger of defrost energy-conservation, significantly reduces and passes through in the defrost cycle
The shell heat for defrost that outwardly Cryogenic air is transmitted, shortens the time in defrost cycle, improves the change of air heat exchanger
White efficiency and total heat exchange efficiency, energy saving.
The utility model provide technical scheme be：Including air heat exchanger, shell, it is characterized in that：Air heat exchanger
Heat insulation layer is set between inwall and the inner surface of shell.
The inner surface of above-mentioned heat insulation layer attaches thermal reflecting coating.
The inwall of above-mentioned air heat exchanger is the curve form for shrinking.
Good effect of the present utility model：Significantly reduce and pass through in the air heat exchanger defrost cycle shell outwardly low temperature
The heat of surrounding air transmission, shortens the time in defrost cycle, effectively increases the heat exchange efficiency of air heat exchanger, saves
The heat that defrost needs, has particularly saved the energy of whole system, and be allowed to be at least up to defrost save 2 times of energy with
On；Therefore a series of good effect is brought：The utility model is used in low-temperature quick-freezing storehouse, the total of defrost input is reduced
Heat and defrost time, the fluctuation that defrost causes cold storehouse temperature is reduced, improve in the refrigerating efficiency and freezer of freezer and freeze
The quality of product；In air source heat pump heat supply, using the utility model, the temperature in heating efficiency and heat supply area can be effectively improved
Scope.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
See Fig. 1, concrete technical scheme of the present utility model is as follows：The ducting outlet of air heat exchanger 4 sets fan 5, wind
The inwall 1 in road sets heat insulation layer 3 to shrink curve form between inwall 1 and shell 2, sets heat insulation layer 3 and uses
Foam heat-insulation layer or foam heat-insulation layer add aluminium foil layer；Or use existing heat preserving and insulating material.
The utility model example 1:
The utility model is used in low-temperature quick-freezing storehouse, the energy of electricity-heated defrosting input is reduced, often reduces 1kw .h's
Defrost heat, just saves the defrost electric energy of 1kw .h, few heat that 1kw .h are entered to freezer is allowed for, while making the system of freezer again
Cool equipment works a period of time less, and as the coefficient of performance of refrigerating cop=1 of refrigeration plant, refrigeration plant works this period less
The electric energy of saving is also 1kw .h, and the total electric energy saved after COMPREHENSIVE CALCULATING is 2kw .h.Generate especially significant energy-conservation
Effect, shortens the time of defrost consumption in addition, reduces the fluctuation of cold storehouse temperature, accelerates the cooling speed of freezer and frozen product
Degree, reduces the drying loss of frozen product, and improve frozen product freezes quality.
The utility model example 2：
The utility model is used in air source heat pump, the total amount of heat of defrost consumption can be effectively reduced, defrost week is shortened
The time of phase, it is the electric energy of defrost electric heater output significantly to save, and improves the value of the coefficient of heat supply cop of air source heat pump.When
Defrost often reduces the heat of 1kw .h, just saves the electric energy of 1kw .h, and the electric energy of the 1kw .h for saving herein is used to drive heat
Pump does heating operation, and as coefficient of performance in heating cop=2, the heat produced is just 2kw .h, and it is understood that general air-source
The comprehensive coefficient of performance in heating cop values of heat pump are much larger than 2, so by the 1kw .h electric energy of defrost saving, the heat produced is long-range
The effect brought in 2kw .h. is very significant.Application of the utility model on air source heat pump, helps to promote air
The rapid popularization of source heat pump is that society and user bring considerable energy-saving effect.
Bibliography
1. Xu Jin China etc., the improvement of Air-Cooled Heat Pump Unit performance；【Electrical apparatus technology and automation】.2010.39（5）.
2. Luo Ming, air-cooled heat pump water chiller-heater units defrosting；【Building heat-energy air conditioner】.2002（6）.
3. yellow tiger, improves the approach of the performance under air-cooled heat pump water chiller-heater units frozen condition；【Building heat-energy ventilation is empty
Adjust】.2000（1）.
4. refined China of history, air-air heat pump frosting defrosting dynamic process research；【Master's thesis】Beijing Tsing-Hua University
1996。
5. victory is prosperous etc., the progress of heat exchanger frosting and defrost.【Refrigeration Technique】.2012.6. the 2nd phase of volume 32.
Claims (3)
1. a kind of air heat exchanger of defrost energy-conservation, including air heat exchanger, shell, it is characterized in that：The inwall of air heat exchanger
Heat insulation layer is set and the inner surface of shell between.
2. the air heat exchanger of defrost energy-conservation according to claim 1, it is characterized in that：The inner surface of heat insulation layer is attached
Thermal reflecting coating.
3. the air heat exchanger of defrost energy-conservation according to claim 1, it is characterized in that：The inwall of air heat exchanger is contraction
Curve form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621052366.4U CN206192174U (en) | 2016-09-13 | 2016-09-13 | Change energy -conserving air heat exchanger of frost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621052366.4U CN206192174U (en) | 2016-09-13 | 2016-09-13 | Change energy -conserving air heat exchanger of frost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206192174U true CN206192174U (en) | 2017-05-24 |
Family
ID=58729394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621052366.4U Expired - Fee Related CN206192174U (en) | 2016-09-13 | 2016-09-13 | Change energy -conserving air heat exchanger of frost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206192174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152860A (en) * | 2016-09-13 | 2016-11-23 | 王荣华 | The air heat exchanger that defrost is energy-conservation |
-
2016
- 2016-09-13 CN CN201621052366.4U patent/CN206192174U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152860A (en) * | 2016-09-13 | 2016-11-23 | 王荣华 | The air heat exchanger that defrost is energy-conservation |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20190913 |