CN1222665A - Green frequency-variable air conditioner - Google Patents
Green frequency-variable air conditioner Download PDFInfo
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- CN1222665A CN1222665A CN 98110017 CN98110017A CN1222665A CN 1222665 A CN1222665 A CN 1222665A CN 98110017 CN98110017 CN 98110017 CN 98110017 A CN98110017 A CN 98110017A CN 1222665 A CN1222665 A CN 1222665A
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- air conditioner
- variable air
- cold
- producing medium
- green frequency
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Abstract
The air conditioner consists of refrigerating system and control system. In the refrigerating system, there is environment protection type refrigerant and the motor to drive the compressor is a triphase asynchronous motor or brushless DC motor connected to a microprocessor and a power module. By combining environment protection type air conditioner and frequency- variable power-saving air conditioner, the air conditioner of the present invention has the features of environment protection, saving power and being confortable.
Description
The present invention relates to a kind of conditioner.
As air-conditioner, generally form by compressor, condenser, evaporimeter, restricting element etc., cold-producing medium is housed in closed circuit.On July 9th, 97, disclosed notification number was 1153806 Chinese patent application file; a kind of high-efficiency environmental protection refrigerant is disclosed; this cold-producing medium is made up of ternary mixture; be the alternative working medium of comparatively desirable R22; atmospheric ozone layer does not have destruction when adopting this mixed working fluid, helps environmental protection.The authorization notification number of announcing on February 9th, 94 is 2155519 Chinese patent file, discloses a kind of economical air conditioner, and this air-conditioner can be realized frequency conversion, the varying capacity of compressor, thus energy saving.But the said goods all has its weak point, only adopts the air-conditioner of environmental type cold-producing medium (being atmospheric ozone layer rupture factor ODP=0), adopts relatively and says, its energy consumption is higher, comfortableness is relatively poor; And only adopting the air-conditioner of frequency-changeable compressor, its cold-producing medium often has destruction to atmospheric ozone layer.
The object of the present invention is to provide a kind of air-conditioner that possesses the protection atmospheric environment simultaneously, improves comfortableness and energy-saving run performance.
The present invention is achieved in that it is made up of refrigeration system and control system, and the cold-producing medium in the refrigeration system is an environment friendly refrigerating fluid, and the motor of drive compression machine is threephase asynchronous machine or dc brushless motor, and this motor is connected with power model with microcontroller.
Cold-producing medium in the refrigeration system is R407c.The heat-transfer surface of evaporimeter and condenser is the heat exchange of adverse current type distributary and arranges.The temperature that the overtemperature protection temperature value that superheater on the compressor sets adopts the R22 cold-producing medium to set is low, and its reduction amplitude is between 3 ℃-20 ℃.The temperature that the anti-high temperature protection setting value of sensor adopts the R22 cold-producing medium to set is low, and its reduction amplitude is between 3 ℃-15 ℃.The lubricating oil that compressor uses is ester class oil.
Adopt the present invention, it organically combines environment-friendly type air-conditioner and energy-saving and frequency-variable type air-conditioner, thereby realizes that air-conditioner possesses environmental protection, energy-conservation and comfortable characteristics simultaneously.
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is a single cold type workflow diagram of the present invention;
Fig. 2 is a pump type heat workflow diagram of the present invention:
Fig. 3 is the structural representation of heat exchanger among the present invention.
The present invention is made up of refrigeration system and control system, cold-producing medium in the refrigeration system adopts environment-friendly type R407c cold-producing medium, the motor of drive compression machine is a threephase asynchronous machine, this motor is connected with power model with microcontroller, change the voltage and the frequency of input compressor by microcontroller and power model, reach the purpose of regulating compressor capacity thereby change rotating speed.
The kind of refrigeration cycle course of work of the present invention, for the single cold type green frequency-variable air conditioner, referring to Fig. 1: → be the flow of refrigerant direction, → be holding wire, power line, (1) is power supply, the variation of the hot humidity load of room environment.Show as the isoparametric variation of air temperature, humidity and environmental radiation.These parameters transfer signals to microcontroller (2) by one group of sensor (3), microcontroller is according to the equipressure of green mixed working fluid isothermal phase change characteristics of heat transfer not, give power model (4) and send control instruction, regulate the rotating speed and the displacement (flow) of frequency-changeable compressor (5) by the variable quantity of regulation voltage and frequency.Cold-producing medium after restricting element (7) step-down, enters evaporimeter (8) through condenser (6) condensation heat release, carries out the heat and mass exchange with the hot humidity load of air, thereby finishes process of refrigerastion; For thermal recovery type green frequency-variable air conditioner, referring to Fig. 2, cold-producing medium at first should be determined flow direction by cross valve (9) before entering heat exchanger (6) heat release, and the same single cold type of all the other work characteristics, after cross valve (9) returns compressor.
The periodic duty process that heats of the present invention, referring to Fig. 2, → be flow of refrigerant direction in the kind of refrigeration cycle,--→ for heating flow of refrigerant direction in the circulation, → be holding wire, power line, the variation of the hot humidity load of room environment, show as the air temperature, humidity and the isoparametric variation of bad border radiation, these parameters transfer signals to microcontroller (2) by one group of sensor (3), microcontroller is according to the equipressure of green mixed working fluid isothermal phase change characteristics of heat transfer not, give power model (4) and send control instruction, regulate the rotating speed and the displacement (flow) of frequency-changeable compressor (5) by the variable quantity of regulation voltage and frequency.After green mixed working fluid is determined flow direction by cross valve (9), through heat exchanger (8) condensation heat release, satisfy the requirement of the hot humidity load of room environment, after restricting element (7) step-down, enter heat exchanger (6) heat exchange again, after cross valve (9) and get back to compressor (5) is finished the cyclic process that heats of cold-producing medium.
Because of the present invention adopts mixed working fluid, this working medium belongs to non-azeotropic working medium, phase-change heat-exchange process for condenser and evaporimeter, comprise the evaporation of vaporized refrigerant condensation and liquid refrigerant, it all is the diabatic process of an isobaric alternating temperature, condensation temperature and evaporating temperature are all in continuous variation, according to these characteristics, can not in common transducer air conditioning, directly add mixed working fluid, the heat-transfer surface that needs to change evaporimeter and condenser is arranged, to improve heat exchange efficiency, for this reason, referring to Fig. 3, the heat-transfer surface of evaporimeter and condenser is the heat exchange of adverse current type distributary arranges, 11 is fin, 12 is copper pipe, 13 is refrigerant inlet, 14 is refrigerant outlet, 15 is air intake, thereby realizes the Optimum Matching of refrigerant system capacity and load.
When the frequency-changeable compressor high-frequency was moved, the temperature that the overtemperature protection temperature value that the superheater on the compressor sets adopts the R22 cold-producing medium to set was low, and its reduction amplitude is 13 ℃.The temperature that the anti-high temperature protection setting value of sensor adopts the R22 cold-producing medium to set is low, and its reduction amplitude is 9 ℃.
The lubricating oil that compressor uses is ester class oil.
Claims (6)
1, a kind of green frequency-variable air conditioner, form by refrigeration system and control system, it is characterized in that the cold-producing medium in the refrigeration system is an environment friendly refrigerating fluid, the motor of drive compression machine is threephase asynchronous machine or dc brushless motor, and this motor is connected with power model with microcontroller.
2, green frequency-variable air conditioner according to claim 1 is characterized in that the cold-producing medium in the refrigeration system is R407c.
3, green frequency-variable air conditioner according to claim 1 and 2 is characterized in that the heat-transfer surface of evaporimeter and condenser is adverse current type distributary heat exchange layout.
4, green frequency-variable air conditioner according to claim 3 is characterized in that the overtemperature protection temperature value that the superheater on the compressor sets adopts the temperature of R22 cold-producing medium setting low, and its reduction amplitude is between 3 ℃-20 ℃.
5, green frequency-variable air conditioner according to claim 4 is characterized in that the anti-high temperature protection setting value of sensor adopts the temperature of R22 cold-producing medium setting low, and its reduction amplitude is between 3 ℃-15 ℃.
6, green frequency-variable air conditioner according to claim 5 is characterized in that the lubricating oil that compressor uses is ester class oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110017 CN1222665A (en) | 1998-01-08 | 1998-01-08 | Green frequency-variable air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110017 CN1222665A (en) | 1998-01-08 | 1998-01-08 | Green frequency-variable air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1222665A true CN1222665A (en) | 1999-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98110017 Pending CN1222665A (en) | 1998-01-08 | 1998-01-08 | Green frequency-variable air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1222665A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220954A (en) * | 2010-04-16 | 2011-10-19 | 日立空调·家用电器株式会社 | Sealed type electric compressor, refrigeration cycle device |
| US8096139B2 (en) | 2005-10-17 | 2012-01-17 | Carrier Corporation | Refrigerant system with variable speed drive |
-
1998
- 1998-01-08 CN CN 98110017 patent/CN1222665A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8096139B2 (en) | 2005-10-17 | 2012-01-17 | Carrier Corporation | Refrigerant system with variable speed drive |
| CN101326408B (en) * | 2005-10-17 | 2013-11-13 | 开利公司 | Refrigerant system with speed-changing driver |
| CN102220954A (en) * | 2010-04-16 | 2011-10-19 | 日立空调·家用电器株式会社 | Sealed type electric compressor, refrigeration cycle device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |