CN105737295A - Fixed frequency type heat pump energy-saving air conditioner system - Google Patents
Fixed frequency type heat pump energy-saving air conditioner system Download PDFInfo
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- CN105737295A CN105737295A CN201410750690.2A CN201410750690A CN105737295A CN 105737295 A CN105737295 A CN 105737295A CN 201410750690 A CN201410750690 A CN 201410750690A CN 105737295 A CN105737295 A CN 105737295A
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Abstract
The invention discloses a fixed frequency type heat pump energy-saving air conditioner system. The fixed frequency type heat pump energy-saving air conditioner system is formed by connecting a compressor, a four-way reversing valve, a first heat exchanger, a stop valve A, an electronic expansion valve, a second heat exchanger and a stop valve B. A refrigerant flows in the whole air conditioner system. The first heat exchanger is located indoors. The second heat exchanger is located outdoors. According to the fixed frequency type heat pump energy-saving air conditioner system, in the normal user usage process, an air conditioner can be made to obtain a high refrigeration seasonal energy efficiency ratio (SEER), high heating seasonal performance efficiency (HSPE) and high annual performance efficiency (APE). Precious electric energy is saved, and meanwhile, the usage range of the air conditioner is improved, thus the air conditioner can operate in a larger temperature interval, and the safety and reliability of operation of the air conditioner are improved.
Description
Technical field
The invention belongs to domestic air conditioner category, be specifically related to a kind of frequency constant heat pump energy-conserving air conditioning system and power-economizing method thereof.
Background technology
The commonly used capillary section stream mode of current common frequency constant heat pump energy-conserving air conditioning system.It is at outdoor dry-bulb temperature 35 DEG C that present Air-conditioning Enterprise air conditioner refrigerating capillary dimension is established a capital really, the operating mode room of Indoor Dry bulb temperature 27 DEG C is tested, the determination of air-conditioning heating capillary tube is at outdoor dry-bulb temperature 7 DEG C, the operating mode room of Indoor Dry bulb temperature 20 DEG C is tested, air conditioning system is in Energy Efficiency Ratio optimum state at this moment, but situation when user uses can not be just the same with operating mode room.And now air-conditioner does and freezes, during heating operation, no matter how indoor and outdoor load changes, the specification of capillary tube used is all without changing, capillary tube does not possess its own traffic regulating power, so that air conditioning system is in actual use, can not run efficiently, can not effectively improve refrigeration energy resource consumption in season efficiency (SEER) of air-conditioner, heating season energy resource consumption efficiency (HSPF) and annual energy resource consumption efficiency (APF), cause the waste of electric energy, in turn result in the required coal of generating, the consumption of oil and waste, produce to pollute to environment, do not meet the policy that current national energy-saving reduces discharging.
In hot summer, when air-conditioner outdoor unit local environment temperature dry-bulb temperature 35 DEG C outer higher than specified cool room, when indoor environment is higher than 27 DEG C, now indoor set load increases, off-premises station condensation temperature increases, and compressor exhaust temperature increases, and the compression ratio of air-conditioning increases, cause indoor set cold-producing medium evaporation capacity inadequate, reduce air conditioner refrigerating efficiency.Time serious, it is possible to cause compressor exhaust temperature too high, compressor protection is shut down, and causes consumer the hottest at weather, when needing most air conditioner refrigerating, it is impossible to use the serious consequence of air-conditioning.
When outdoor load is relatively low, the evaporation of indoor set cold-producing medium is not exclusively, it is possible to cause compressor to return liquid, so that the situation of liquid hazards occurs.
Summary of the invention
For prior art Problems existing, it is an object of the invention to provide a kind of frequency constant heat pump energy-conserving air conditioning system, utilize this frequency constant heat pump energy-conserving air conditioning system that air-conditioner can be made to be obtained in that higher refrigeration energy resource consumption in season efficiency (SEER), heating season energy resource consumption efficiency (HSPF) and annual energy resource consumption efficiency (APF) in the process that user normally uses, save valuable electric energy, improve the scope that air-conditioning uses simultaneously, enable air-conditioning to run in bigger temperature range, improve the safe and reliable property that air-conditioner runs.
This invention address that its technical problem is adopted the technical scheme that: a kind of frequency constant heat pump energy-conserving air conditioning system, it is by compressor, four-way change-over valve, First Heat Exchanger, stop valve A, electric expansion valve, the second heat exchanger and stop valve B are formed by connecting, compressor is connected with First Heat Exchanger by four-way change-over valve, simultaneously, four-way change-over valve, by stop valve B and the connection of the second heat exchanger, is connected with stop valve A, electric expansion valve between First Heat Exchanger and the second heat exchanger；Cold-producing medium flows in whole air conditioning system, and described First Heat Exchanger is positioned at indoor, and the second heat exchanger is positioned at outdoor.
Described frequency constant heat pump energy-conserving air conditioning system, in air conditioner refrigerating process, cold-producing medium is followed successively by intrasystem flow circuits: compressor → four-way change-over valve → First Heat Exchanger → electric expansion valve → stop valve A → the second heat exchanger → stop valve B → four-way change-over valve → compressor.
Described frequency constant heat pump energy-conserving air conditioning system, in air-conditioning heating running, air conditioning system cold-producing medium glide path is as follows: → compressor → four-way change-over valve the second heat exchanger → electric expansion valve → stop valve B → First Heat Exchanger stop valve A → four-way change-over valve → compressor.
The present invention is compared with existing common air-conditioning frequency constant heat pump energy-conserving air conditioning system, throttling arrangement adopts the electric expansion valve with good Flow-rate adjustment ability to substitute original capillary tube, effectively solves the common air-conditioning capillary section nonadjustable problem of stream mode flow.Do at air-conditioner freeze, heating operation time; how indoor and outdoor load changes; utilize the Flow-rate adjustment ability that electric expansion valve is good; make air conditioning system in actual use; all the time run efficiently; effective raising refrigeration energy resource consumption in season efficiency (SEER) of air-conditioner, heating season energy resource consumption efficiency (HSPF) and annual energy resource consumption efficiency (APF); save valuable electric energy; and then save the required coal of generating, the consumption of oil and waste; protection environment, caters to the policy that current national energy-saving reduces discharging.Improve the scope that air-conditioning uses, enable air-conditioning to run in bigger temperature range, improve the safe and reliable property that air-conditioner runs, to the fine enjoyment of consumer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure, arrow is cold-producing medium flow direction.
Detailed description of the invention
As shown in Figure 1, a kind of frequency constant heat pump energy-conserving air conditioning system of the present invention, it is by compressor 1, four-way change-over valve 2, First Heat Exchanger 3, stop valve A4, electric expansion valve the 5, second heat exchanger 6 and stop valve B6 are formed by connecting, compressor 1 is connected with First Heat Exchanger 3 by four-way change-over valve 2, meanwhile, four-way change-over valve 3 is connected by stop valve B7 and the second heat exchanger 6, is connected with stop valve A4, electric expansion valve 5 between First Heat Exchanger 3 and the second heat exchanger 6；Cold-producing medium flows in whole air conditioning system, and described First Heat Exchanger 3 is positioned at indoor, and the second heat exchanger 6 is positioned at outdoor.
It specifically has two kinds of embodiments,
Embodiment 1 is the process of refrigeration.
In air conditioner refrigerating running, air conditioning system cold-producing medium glide path is as follows: compressor 1 → four-way change-over valve, 2 → First Heat Exchanger, 3 → electric expansion valve, 4 → stop valve A5 → the second heat exchanger 6 → stop valve B7 → four-way change-over valve 2 → compressor 1 completes kind of refrigeration cycle.
In hot summer, when outdoor environment temperature dry-bulb temperature 35 DEG C outer higher than the specified cool room of GB/T7725 regulation, when outdoor air conditioner load increases, suitably open the aperture of big electric expansion valve 4, increase the flow of refrigeration system cold-producing medium, reduce the compression ratio of air-conditioning refrigeration system, increase the evaporation capacity of First Heat Exchanger 3 cold-producing medium, reduce the delivery temperature of compressor, while improving air conditioner refrigerating operation energy resource consumption efficiency, ensure that the safe and reliable operation of air-conditioning, improve air-conditioning capability of overload.
Simultaneously in hotter season, when air-conditioner outdoor unit local environment temperature dry-bulb temperature 35 DEG C outer lower than specified cool room, when outdoor air conditioner load reduces, suitably reduce the aperture of electric expansion valve 4, reduce the flow of refrigeration system cold-producing medium, properly increase the compression ratio of air-conditioning refrigeration system, when ensureing First Heat Exchanger 3 cold-producing medium evaporation capacity, reduce the evaporating temperature of First Heat Exchanger 3 cold-producing medium, cold-producing medium is made to be evaporated completely in First Heat Exchanger, avoid compressor and return liquid so that the generation of compressor liquid hazards phenomenon, while improving air conditioner refrigerating operation energy resource consumption efficiency, ensure that air-conditioning safety, reliability service.
The present embodiment 2 is the heating operations of air-conditioning.
In air conditioner refrigerating running, air conditioning system cold-producing medium glide path is as follows: compressor 1 → four-way change-over valve 2 → the second heat exchanger 6 → electric expansion valve, 4 → stop valve B7 → First Heat Exchanger 3 → stop valve A5 → four-way change-over valve 2 → compressor 1 completes to heat circulation.
In cold winter, when outdoor environment temperature lower than GB/T7725 specify specified heat temperature 7 degree time, when outdoor air conditioner load reduces, suitably reduce the aperture of electric expansion valve 4, reduce the flow of refrigeration system cold-producing medium, properly increase the compression ratio of air-conditioning refrigeration system, when ensureing the second heat exchanger 6 cold-producing medium evaporation capacity, reduce the evaporating temperature of the second heat exchanger 6 cold-producing medium, cold-producing medium is made to be evaporated completely in the second heat exchanger, more for outdoor heat is transferred to indoor, avoid compressor and return liquid so that the generation of compressor liquid hazards phenomenon, while improving air-conditioning heating operation energy resource consumption efficiency, ensure that air-conditioning safety, reliability service.
When weather is nice and cool, when outdoor environment temperature height in GB/T7725 regulation specified heat temperature 7 degree time, when outdoor air conditioner load increases, suitably strengthen the aperture of electric expansion valve 4, increase the flow of refrigeration system cold-producing medium, suitably reduce the compression ratio of air-conditioning refrigeration system, increase by the second heat exchanger 6 cold-producing medium evaporation capacity, more for outdoor heat is transferred to indoor, runs energy resource consumption efficiency improving air-conditioning heating.
By to the optimal control of the energy resource consumption efficiency of air-conditioning in the various situations in the process normally using air-conditioner user; effective raising refrigeration energy resource consumption in season efficiency (SEER), heating season energy resource consumption efficiency (HSPF) and annual energy resource consumption efficiency (APF); save valuable electric energy; and then save the required coal of generating, the consumption of oil and waste; protection environment, caters to the policy that current national energy-saving reduces discharging.Improve the scope that air-conditioning uses simultaneously, enable air-conditioning to run in bigger temperature range, improve the safe and reliable property that air-conditioner runs, to the fine enjoyment of consumer.
Claims (1)
1. a frequency constant heat pump energy-conserving air conditioning system, it is characterized in that: it is by compressor, four-way change-over valve, First Heat Exchanger, stop valve A, electric expansion valve, the second heat exchanger and stop valve B are formed by connecting, compressor is connected with First Heat Exchanger by four-way change-over valve, simultaneously, four-way change-over valve, by stop valve B and the connection of the second heat exchanger, is connected with stop valve A, electric expansion valve between First Heat Exchanger and the second heat exchanger；Cold-producing medium flows in whole air conditioning system, and described First Heat Exchanger is positioned at indoor, and the second heat exchanger is positioned at outdoor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750690.2A CN105737295A (en) | 2014-12-10 | 2014-12-10 | Fixed frequency type heat pump energy-saving air conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750690.2A CN105737295A (en) | 2014-12-10 | 2014-12-10 | Fixed frequency type heat pump energy-saving air conditioner system |
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| Publication Number | Publication Date |
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| CN105737295A true CN105737295A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410750690.2A Pending CN105737295A (en) | 2014-12-10 | 2014-12-10 | Fixed frequency type heat pump energy-saving air conditioner system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362197A (en) * | 2020-11-11 | 2021-02-12 | 清华大学 | Throttling device-based multi-online air-conditioning heat exchange heat metering method and device |
| CN112396764A (en) * | 2020-11-11 | 2021-02-23 | 清华大学 | Throttling device-based household metering and charging method and device for multi-split air conditioner |
-
2014
- 2014-12-10 CN CN201410750690.2A patent/CN105737295A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362197A (en) * | 2020-11-11 | 2021-02-12 | 清华大学 | Throttling device-based multi-online air-conditioning heat exchange heat metering method and device |
| CN112396764A (en) * | 2020-11-11 | 2021-02-23 | 清华大学 | Throttling device-based household metering and charging method and device for multi-split air conditioner |
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Application publication date: 20160706 |