CN203489364U - Direct-expansion air conditioning device - Google Patents
Direct-expansion air conditioning device Download PDFInfo
- Publication number
- CN203489364U CN203489364U CN201320534605.XU CN201320534605U CN203489364U CN 203489364 U CN203489364 U CN 203489364U CN 201320534605 U CN201320534605 U CN 201320534605U CN 203489364 U CN203489364 U CN 203489364U
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- Prior art keywords
- heat exchanger
- compressor
- preheating heat
- evaporimeter
- air
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Links
- 238000004378 air conditioning Methods 0.000 title abstract description 9
- 230000008676 import Effects 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005339 levitation Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 12
- 238000005461 lubrication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A direct-expansion air conditioning device comprises a compressor, a condenser, at least one throttling device and at least one evaporator which are sequentially communicated in an end-to-end manner to form a loop. The evaporators are recuperative heat exchangers, and the compressor is an oil-free compressor, so that a plurality of evaporator systems can be easily used without the problem of oil return of refrigeration oil. Multi-split air conditioners generated by the technology can configure pipes in a long distance and can remotely realize refrigeration in a long distance. In addition, pressure drop of an air returning pipe is decreased, a thick air returning pipeline can be selected as far as possible, and a user does not need to consider the problem that only the air returning pipe with a small diameter can be selected as a traditional unit needs oil return.
Description
Technical field
The utility model relates to conditioner technical field, particularly relates to a kind of straight swollen type conditioner.
Background technology
Along with improving constantly of people's living standard, people are also day by day urgent to the pursuit of quality of life, air-conditioning from before the luxurious ornaments of life changed the necessity that guarantees quality of life into.Along with the increase that air-conditioning is used, air conditioning energy consumption also increases year by year at the proportion of national energy consumption, how to improve the efficiency of air-conditioning, and reducing power consumption is unremitting pursue in the industry.
Traditional air-conditioning system, because the bearing of its drive unit is conventional oil lubricating bearings, cold-producing medium flows with oil simultaneously in refrigeration system, when refrigerant flow constantly reduces, must cause cold-producing medium to carry oily ability and decline, if dealt with improperly, compressor can cause because of lack of lubrication bearing locking, so just, can cause great bodily injury to compressor, shorten the service life of compressor, and then shorten the service life of whole air-conditioning system.In order to address this problem, traditional way is every a period of time, just refrigeration system full load is moved to promote oil return, and then the parts such as bearing on compressor are lubricated.Yet the oepration at full load of refrigeration system automatic operation after presetting, so even if sometimes reached refrigeration, but in order to promote the bearing lubrication of compressor, still need compressor is operated at full capacity.Obviously, this mechanism form has caused serious energy waste, some multi-connected machine systems especially, because the maldistribution of cold-producing medium, the effect of oil return is also unreliable, and energy resource consumption is many, and efficiency is lower, also larger on the impact in compressor life-span.
Utility model content
For this reason, the technical problems to be solved in the utility model is to provide a kind of straight swollen type conditioner without oil lubrication.
For achieving the above object, the utility model is by the following technical solutions:
A straight swollen type conditioner, comprises that head and the tail are communicated with the compressor that forms loop, condenser, throttling arrangement, and evaporimeter successively; Described throttling arrangement and described evaporimeter are at least one, and described evaporimeter is dividing wall type heat exchanger; Described compressor is oilless (oil free) compressor.
Described compressor is electromagnetic levitation type compressor.
Described compressor is gas bearing compressor.
Described evaporimeter is wind-cooled evaporator or radiation heat transfer evaporimeter.
Described wind-cooled evaporator is forced air cooling heat exchanger or heat transfer free convection device.
Described conditioner also comprises preheating heat exchanger, and the first outlet of described preheating heat exchanger is communicated with the medium import that is cooled of described evaporimeter; Outdoor fresh air from the first import of described preheating heat exchanger enter and with room air heat exchange, from the first outlet of described preheating heat exchanger, enter described evaporimeter; Room air from the second import of described preheating heat exchanger enter and with described preheating heat exchanger in outdoor fresh air heat exchange, from the second outlet of described preheating heat exchanger, drain into outdoor.
The second outlet of described preheating heat exchanger is communicated with the cooling medium inlet of described condenser.
The first import of described preheating heat exchanger, the port of the second import are provided with to the Forced Air Convection device of air blast in described preheating heat exchanger.
Described Forced Air Convection device is fan.
The beneficial effects of the utility model:
1. the compressor that the utility model adopts is oilless (oil free) compressor, so just can easily adopt a plurality of evaporator systems and without considering refrigeration oil oil return problem, the multi-connected machine that technology produces thus can be realized long pipe arrangement, at a distance refrigeration; In addition, for reducing muffler pressure drop, can select thicker return line as far as possible, and because of conventional rack, need the problem that oil return can only selection of small diameter muffler without considering.
2. the compressor that the utility model adopts is electromagnetic levitation type compressor or gas bearing compressor, so just avoid the problem of the easy wearing and tearing of bearing of available technology adopting screw compressor or helical-lobe compressor etc., thereby extended the service life of conditioner.
3. in order to realize the circulation of room air and outdoor air, also guarantee the heat exchange efficiency of conditioner simultaneously, on evaporimeter of the present utility model, be also connected with preheating heat exchanger, first the outdoor fresh air that evaporimeter sucks in carries out heat exchange with room air in preheating heat exchanger, so that the temperature of the fresh air sucking in approaches after the temperature of room air, enter again evaporimeter and carry out heat exchange, can greatly reduce the running load of compressor like this, when improving heat exchange efficiency, can also save the energy.
4. second of preheating heat exchanger of the present utility model the outlet is communicated with the cooling medium inlet of condenser, also just the room air after preheating heat exchanger heat exchange is carried out to heat exchange to entering condenser again, this room air is than outdoor air, particularly, in summer, be more conducive to improve the refrigeration of condenser.
Accompanying drawing explanation
For the content of utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is flow chart of the present utility model;
Fig. 2 is the flow chart of the utility model when preheating heat exchanger is installed.
In figure, Reference numeral is expressed as:
1-compressor; 2-condenser; 21-cooling medium entrance; The outlet of 22-cooling medium; 3-throttling arrangement; 4-evaporimeter; The 41-medium inlet that is cooled; The 42-media outlet that is cooled; 5-preheating heat exchanger; 51-the first import; 52-the first outlet; 53-the second import; 54-the second outlet; 6-Forced Air Convection device.
The specific embodiment
Embodiment mono-:
Referring to Fig. 1, be the disclosed a kind of straight swollen type conditioner of the utility model, comprise that head and the tail are communicated with the compressor 1 that forms loop, condenser 2, throttling arrangement 3, and evaporimeter 4 successively; Described throttling arrangement 3 in the present embodiment and described evaporimeter 4 are one, certainly, and according to actual needs also can be in parallel a plurality of.Described evaporimeter 4 is dividing wall type heat exchanger; Described compressor 1 is the oilless (oil free) compressors such as electromagnetic levitation type compressor or refrigerant gas bearing compressor, oilless (oil free) compressor, due to without adding lubricating oil, has fundamentally solved air-conditioning system because of the not enough problem that the compressor life-span is shorter, refrigerating efficiency is low causing of lubricating oil.In addition, because the feature of dividing wall type heat exchanger is to carry out heat exchange by partition, cold and hot two fluids are separated by one deck solid wall surface (pipe or plate), do not mix mutually, like this, cold-producing medium and air directly carry out heat exchange, cold-producing medium is without carrying out heat exchange by chilled water and air, evaporating temperature can improve 2～5 degree, improves 3% ratio according to the every raising of evaporating temperature once refrigerating efficiency, lifting that can implementation efficiency 6%～15%.
Described evaporimeter 4 in the present embodiment is forced air cooling heat exchanger or heat transfer free convection device or radiation heat transfer evaporimeter.
Embodiment bis-:
Referring to Fig. 2, as another kind of embodiment of the present utility model, in order to realize the circulation of room air and outdoor air, also guarantee the heat exchange efficiency of conditioner simultaneously, described conditioner also comprises preheating heat exchanger 5 on the basis of embodiment mono-, outdoor fresh air from the first import 51 of described preheating heat exchanger 5 enter and with flow into the room air heat exchange of described preheating heat exchanger 5, from the first outlet 52 of described preheating heat exchanger 5, enter the medium inlet 41 that is cooled of described evaporimeter 4, after described outdoor fresh air is cooled in described evaporimeter 4, from the media outlet 42 that is cooled of described evaporimeter 4, arrange into indoor, room air is regulated, part room air enters from the second import 53 of described preheating heat exchanger 5, and with described preheating heat exchanger 5 in outdoor fresh air heat exchange after, from described preheating heat exchanger 5 second outlet 54 drain into outdoor.
Due to the room air of discharging from described preheating heat exchanger 5, much lower than outdoor air temperature, it is carried out to cooling effect to condenser 2 is better than directly with using outdoor air, therefore, cooling in order better described condenser 2 to be carried out, the present embodiment is preferably communicated with the second outlet 54 of described preheating heat exchanger 5 with the cooling medium inlet 21 of described condenser 2.Certainly use room air that described preheating heat exchanger 5 discharges to carry out when cooling, also will change and determining according to seasonal temperature to condenser 2, this connected mode be mainly applicable to the situation that the outdoor temperatures such as summer are higher.
In order to improve the heat exchange efficiency of preheating heat exchanger 5, the first import 51 of described preheating heat exchanger 5, the port of the second import 53 are provided with to the Forced Air Convection device 6 of described preheating heat exchanger 5 interior air blast, and described Forced Air Convection device 6 is preferably fan.
The above-mentioned specific embodiment is just explained in detail the technical solution of the utility model; the utility model has more than and is only confined to above-described embodiment; those skilled in the art should be understood that; the above-mentioned principle of every foundation and the improvement of spirit on the utility model basis, substitute, all should be within protection domain of the present utility model.
Claims (9)
1. a straight swollen type conditioner, comprises that head and the tail are communicated with the compressor (1) that forms loop, condenser (2), throttling arrangement (3), and evaporimeter (4) successively; Described throttling arrangement (3) and described evaporimeter (4) are at least one, and described evaporimeter (4) is dividing wall type heat exchanger; It is characterized in that, described compressor (1) is oilless (oil free) compressor.
2. a kind of straight swollen type conditioner according to claim 1, is characterized in that: described compressor (1) is electromagnetic levitation type compressor.
3. a kind of straight swollen type conditioner according to claim 1, is characterized in that: described compressor (1) is gas bearing compressor.
4. according to a kind of straight swollen type conditioner described in claim 2 or 3, it is characterized in that: described evaporimeter (4) is wind-cooled evaporator or radiation heat transfer evaporimeter.
5. a kind of straight swollen type conditioner according to claim 4, is characterized in that: described wind-cooled evaporator is forced air cooling heat exchanger or heat transfer free convection device.
6. a kind of straight swollen type conditioner according to claim 1, it is characterized in that: described conditioner also comprises preheating heat exchanger (5), the first outlet (52) of described preheating heat exchanger (5) is communicated with the medium import (41) that is cooled of described evaporimeter (4); Outdoor fresh air from first import (51) of described preheating heat exchanger (5) enter and with room air heat exchange, from the first outlet (52) of described preheating heat exchanger (5), enter described evaporimeter (4); Room air from second import (53) of described preheating heat exchanger (5) enter and with described preheating heat exchanger (5) in outdoor fresh air heat exchange, from the second outlet (54) of described preheating heat exchanger (5), drain into outdoor.
7. a kind of straight swollen type conditioner according to claim 6, is characterized in that: the second outlet (54) of described preheating heat exchanger (5) is communicated with the cooling medium inlet (21) of described condenser (2).
8. a kind of straight swollen type conditioner according to claim 7, is characterized in that: first import (51) of described preheating heat exchanger (5), the port of the second import (53) are provided with to the Forced Air Convection device (6) of the interior air blast of described preheating heat exchanger (5).
9. a kind of straight swollen type conditioner according to claim 8, is characterized in that: described Forced Air Convection device (6) is fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534605.XU CN203489364U (en) | 2013-08-30 | 2013-08-30 | Direct-expansion air conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534605.XU CN203489364U (en) | 2013-08-30 | 2013-08-30 | Direct-expansion air conditioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203489364U true CN203489364U (en) | 2014-03-19 |
Family
ID=50260193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320534605.XU Expired - Fee Related CN203489364U (en) | 2013-08-30 | 2013-08-30 | Direct-expansion air conditioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203489364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422022A (en) * | 2013-08-30 | 2015-03-18 | 苏州必信空调有限公司 | Direct-expansion type air-conditioning device |
| CN112594985A (en) * | 2020-12-31 | 2021-04-02 | 广东积微科技有限公司 | Oil return control method of multifunctional multi-split system with double four-way valves |
-
2013
- 2013-08-30 CN CN201320534605.XU patent/CN203489364U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422022A (en) * | 2013-08-30 | 2015-03-18 | 苏州必信空调有限公司 | Direct-expansion type air-conditioning device |
| CN112594985A (en) * | 2020-12-31 | 2021-04-02 | 广东积微科技有限公司 | Oil return control method of multifunctional multi-split system with double four-way valves |
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| 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: 20140319 |