CN105627502A - Direct-current variable-frequency all-fresh-air air conditioning unit - Google Patents
Direct-current variable-frequency all-fresh-air air conditioning unit Download PDFInfo
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- CN105627502A CN105627502A CN201410713183.1A CN201410713183A CN105627502A CN 105627502 A CN105627502 A CN 105627502A CN 201410713183 A CN201410713183 A CN 201410713183A CN 105627502 A CN105627502 A CN 105627502A
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Abstract
The invention discloses a direct-current variable-frequency all-fresh-air air conditioning unit which comprises an air treating system, a preceding-stage refrigerating system and a backward-stage refrigerating system. The air treating system comprises a primary filter, a first evaporator, a second evaporator and an air feeder which are sequentially connected. Compared with a traditional all-fresh-air air conditioning unit, the air conditioning unit adopts the advanced direct-current variable-frequency compressor technique, the rotation speed of a compressor can be adjusted automatically by the air conditioning unit so that the requirement that the fresh air load borne by a room changes can be met, the indoor temperature and humidity can be controlled accurately and rapidly, the electrical energy consumption is greatly reduced, and the defects caused by frequent start of the compressor are overcome; meanwhile, the problem that the air conditioning unit frosts during low-dew-point air feeding is solved, continuous operation of the air conditioning unit is guaranteed, the performance is more stable and reliable under the low-temperature working condition, and the temperature requirements of various occasions are met; furthermore, energy conservation and emission reduction are further achieved, environmental friendliness is achieved, and the consumption is reduced.
Description
Technical field
The present invention relates to a kind of air conditioning unit, particularly relate to a kind of DC frequency-changing air conditioner with fresh air ventilator group.
Background technology
Along with China's expanding economy, energy problem is day by day serious, and air-conditioning is the capital equipment consuming the energy, and therefore constantly researching and developing the air conditioning unit of efficient energy-saving is particularly important; And along with the development of society, the requirement that air is regulated is also more and more higher, service condition is also increasingly harsher.
Such as, also require that when air-conditioned room load variations room humiture keeps constant, now traditional air-conditioning relies primarily on constantly to be opened, stops compressor to adjust indoor temperature, temperature accuracy hardly results in stability contorting, one open one stop between not only to easily cause room temperature erratic fluctuation big, and consume more electric energy, and high frequent ground is opened and is caused the decay to its life-span.
Additionally at the air conditioning unit year round cooling of the application requirements that some heat dissipation capacity is big, and the especially easy frosting under transition season and cold environmental conditions of traditional air conditioner with fresh air ventilator group, unit cannot run at all continuously, controls to cause difficulty to system. Requiring that in the environment that some special process requires the air-out dew point of unit is relatively low, traditional all-fresh air unit cannot meet requirement. Also having in peak times of power consumption in summer, line voltage easily occurs that instability, traditional air-conditioning directly initiate can cause bigger impact to electrical network, and when serious, air-conditioning can not start substantially.
Summary of the invention
It is an object of the invention to the deficiency existed for prior art, it is provided that a kind of advanced technology, Temperature and Humidity Control is accurate, energy-efficient, stable and reliable for performance, and environmental suitability is strong, and the life-span is long, the DC frequency-changing air conditioner with fresh air ventilator group that noise is low.
For achieving the above object, the technical solution used in the present invention is a kind of DC frequency-changing air conditioner with fresh air ventilator group, including air treatment system, prime refrigeration system and rear class refrigeration system; Described air treatment system includes the roughing efficiency air filter, the first vaporizer, the second vaporizer and the pressure fan that are sequentially connected;
Described prime refrigeration system includes the invariable frequency compressor, backing condenser, prime liquid reservoir, prime device for drying and filtering, electromagnetic valve and the heating power expansion valve that are sequentially connected, and this prime processes system and also includes prime vapour liquid separator, described heating power expansion valve, the first vaporizer, prime gas-liquid separator and invariable frequency compressor are sequentially connected;
Described rear class refrigeration system includes the frequency-changeable compressor, rear class condenser, rear class liquid reservoir, rear class device for drying and filtering, ball valve and the electric expansion valve that are sequentially connected, and this rear class refrigeration system also includes rear class vapour liquid separator, described electric expansion valve, the second vaporizer, rear class gas-liquid separator and frequency-changeable compressor are sequentially connected;
As preferably, the side of described backing condenser and rear class condenser is equipped with condensation fan.
As preferably, described rear class refrigeration system being additionally provided with fan governor between frequency-changeable compressor and rear class condenser.
As preferably, the frequency-changeable compressor in described rear class refrigeration system is DC frequency-changeable compressor.
Beneficial effect: compared with prior art, the invention have the advantages that the present invention is compared with traditional all-fresh air unit, unit have employed the DC frequency-changeable compressor technology of advanced person, unit can be automatically adjusted compressor rotary speed to adapt to the needs of room load new wind load change, realize precisely controlling indoor temperature and humidity rapidly, it is substantially reduced the consumption of electric energy, turn avoid the defect that frequent starting compressor causes, also solve unit frosting problem during low dew-point air supply simultaneously, ensure that unit runs continuously, under worst cold case, performance is more reliable and more stable, meet the temperature requirement of various occasion, and realize energy-saving and emission-reduction further, environmental protection lowers consumption, the present invention adopts the throttling arrangement of this best of electric expansion valve, realize matching with compressor of efficient quick-speed large-scale, and can the control law of preset various complexity, meet different demands for control, and the setting of fan governor can effectively regulate the rotating speed of blower fan, control the pressure of condenser.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, being further elucidated with the present invention, the present embodiment is carried out under premised on technical solution of the present invention, it should be understood that these embodiments are merely to illustrate the present invention rather than restriction the scope of the present invention.
As it is shown in figure 1, a kind of DC frequency-changing air conditioner with fresh air ventilator group, including air treatment system, prime refrigeration system and rear class refrigeration system; Described air treatment system includes roughing efficiency air filter the 1, first vaporizer the 2, second vaporizer 3 and the pressure fan 4 that are sequentially connected.
Described prime refrigeration system includes the invariable frequency compressor 5, backing condenser 6, prime liquid reservoir 7, prime device for drying and filtering 8, electromagnetic valve 9 and the heating power expansion valve 10 that are sequentially connected, and this prime processes system and also includes prime vapour liquid separator 11, described heating power expansion valve the 10, first vaporizer 2, prime gas-liquid separator 11 and invariable frequency compressor 5 are sequentially connected; And the side of backing condenser 6 is additionally provided with condensation fan 19.
Described rear class refrigeration system includes the frequency-changeable compressor 12, rear class condenser 13, rear class liquid reservoir 14, rear class device for drying and filtering 15, ball valve 16 and the electric expansion valve 17 that are sequentially connected, and this rear class refrigeration system also includes rear class vapour liquid separator 18, described electric expansion valve the 17, second vaporizer 3, rear class gas-liquid separator 18 and frequency-changeable compressor 12 are sequentially connected; And the side of rear class condenser 13 is additionally provided with condensation fan 19, frequency-changeable compressor 12 therein is DC frequency-changeable compressor.
The kind of refrigeration cycle of the present invention is as follows: in prime refrigeration system, low-temperature low-pressure refrigerant gas compression is high temperature and high pressure gas by invariable frequency compressor, high temperature and high pressure gas from invariable frequency compressor out into backing condenser is cooled to high temperature high pressure liquid, high temperature high pressure liquid sequentially passes through prime liquid reservoir, prime device for drying and filtering, it is that low-temp low-pressure gas liquid mixture enters into the first vaporizer through heating power expansion valve reducing pressure by regulating flow after electromagnetic valve, heat absorption vaporization in the first vaporizer, enter in prime vapour liquid separator after cold-producing medium heat absorption vaporization, after vapour liquid separator separates unevaporated liquid, enter into invariable frequency compressor again compressed, complete a complete kind of refrigeration cycle.
In rear class system, low-temperature low-pressure refrigerant gas compression is high temperature and high pressure gas by DC frequency-changeable compressor, high temperature and high pressure gas is cooled to high temperature high pressure liquid from frequency-changeable compressor out into rear class condenser, high temperature high pressure liquid sequentially passes through rear class liquid reservoir, rear class device for drying and filtering, it is after low-temp low-pressure gas liquid mixture, enter into the second vaporizer through electric expansion valve reducing pressure by regulating flow after ball valve, heat absorption vaporization in the second vaporizer, enter in prime vapour liquid separator after cold-producing medium heat absorption vaporization, after vapour liquid separator separates unevaporated liquid, enter into frequency-changeable compressor again compressed, complete a complete kind of refrigeration cycle. along with the change of load adjusts the frequency of compressor in frequency-changeable compressor running therein, ensure that the energy of output mates with load, ensure that unit can reliability service continuously, in running, fan governor regulates the rotating speed of blower fan, control the pressure of condenser, make condensing pressure be maintained in normal operation range.
Air handling process: outdoor new wind first passes around roughing efficiency air filter and filters, and dehumidifies then in turn through the first vaporizer and the second evaporator cools, sends into air conditioning area by pressure fan, complete air handling process.
Claims (4)
1. a DC frequency-changing air conditioner with fresh air ventilator group, it is characterised in that: include air treatment system, prime refrigeration system and rear class refrigeration system; Described air treatment system includes the roughing efficiency air filter (1), the first vaporizer (2), the second vaporizer (3) and the pressure fan (4) that are sequentially connected;
Described prime refrigeration system includes the invariable frequency compressor (5), backing condenser (6), prime liquid reservoir (7), prime device for drying and filtering (8), electromagnetic valve (9) and the heating power expansion valve (10) that are sequentially connected, and this prime processes system and also includes prime vapour liquid separator (11), described heating power expansion valve (10), the first vaporizer (2), prime gas-liquid separator (11) and invariable frequency compressor (5) are sequentially connected;
Described rear class refrigeration system includes the frequency-changeable compressor (12), rear class condenser (13), rear class liquid reservoir (14), rear class device for drying and filtering (15), ball valve (16) and the electric expansion valve (17) that are sequentially connected, and this rear class refrigeration system also includes rear class vapour liquid separator (18), described electric expansion valve (17), the second vaporizer (3), rear class gas-liquid separator (18) and frequency-changeable compressor (12) are sequentially connected.
2. a kind of DC frequency-changing air conditioner with fresh air ventilator group according to claim 1, it is characterised in that: the side of described backing condenser (6) and rear class condenser (13) is equipped with condensation fan (19).
3. a kind of DC frequency-changing air conditioner with fresh air ventilator group according to claim 1, it is characterised in that: described rear class refrigeration system is additionally provided with between frequency-changeable compressor (12) and rear class condenser (13) fan governor (20).
4. a kind of DC frequency-changing air conditioner with fresh air ventilator group according to claim 1, it is characterised in that: the frequency-changeable compressor (12) in described rear class refrigeration system is DC frequency-changeable compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713183.1A CN105627502A (en) | 2014-11-28 | 2014-11-28 | Direct-current variable-frequency all-fresh-air air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713183.1A CN105627502A (en) | 2014-11-28 | 2014-11-28 | Direct-current variable-frequency all-fresh-air air conditioning unit |
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| CN105627502A true CN105627502A (en) | 2016-06-01 |
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| CN201410713183.1A Pending CN105627502A (en) | 2014-11-28 | 2014-11-28 | Direct-current variable-frequency all-fresh-air air conditioning unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895565A (en) * | 2017-03-31 | 2017-06-27 | 际高贝卡科技有限公司 | A kind of pair of low-temperature receiver dehumidifying unit and its DC conversion control method |
| CN108224907A (en) * | 2018-01-17 | 2018-06-29 | 广东欧亚制冷设备制造有限公司 | For the freeze-drying unit and milling device of thermosetting powder coating |
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| CN201697248U (en) * | 2010-01-20 | 2011-01-05 | 广东申菱空调设备有限公司 | Multi-work condition precooling type frequency-conversion energy-saving airplane ground air conditioning unit |
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| CN103940007A (en) * | 2014-03-24 | 2014-07-23 | 广东石油化工学院 | Direct evaporation type water-cooling fresh air unit |
| CN204301381U (en) * | 2014-11-28 | 2015-04-29 | 南京五洲制冷集团有限公司 | A kind of DC frequency-changing whole fresh wind air-condition unit |
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2014
- 2014-11-28 CN CN201410713183.1A patent/CN105627502A/en active Pending
Patent Citations (7)
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| CN2771704Y (en) * | 2005-03-18 | 2006-04-12 | 王学平 | Operation-condition-variable air conditioner |
| CN201697248U (en) * | 2010-01-20 | 2011-01-05 | 广东申菱空调设备有限公司 | Multi-work condition precooling type frequency-conversion energy-saving airplane ground air conditioning unit |
| US20130213071A1 (en) * | 2010-11-30 | 2013-08-22 | Fuji Electric Co., Ltd. | Integrated air conditioning system, indoor air unit for same, outdoor air unit for same, and stacked member |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895565A (en) * | 2017-03-31 | 2017-06-27 | 际高贝卡科技有限公司 | A kind of pair of low-temperature receiver dehumidifying unit and its DC conversion control method |
| CN108224907A (en) * | 2018-01-17 | 2018-06-29 | 广东欧亚制冷设备制造有限公司 | For the freeze-drying unit and milling device of thermosetting powder coating |
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