CN102072591A - Variable volume intelligent heat pump - Google Patents
Variable volume intelligent heat pump Download PDFInfo
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- CN102072591A CN102072591A CN2011100098237A CN201110009823A CN102072591A CN 102072591 A CN102072591 A CN 102072591A CN 2011100098237 A CN2011100098237 A CN 2011100098237A CN 201110009823 A CN201110009823 A CN 201110009823A CN 102072591 A CN102072591 A CN 102072591A
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- energy efficiency
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Abstract
The invention belongs to the field of the heat pump industry and provides a new structure which can adapt to environmental temperatures in different seasons and improve the energy efficiency ratio of a heat pump. The invention mainly relates to a structure for changing the volume of a refrigerant circulation system in the heat pump according to the temperature of a heat source and the suction pressure of a compressor, and an intelligent regulation method for realizing optimal energy efficiency ratios in different working environments. The variable volume intelligent heat pump provided by the invention is different from the traditional heat pump improvement technology. The structure can automatically control and regulate the volume of the refrigerant circulation system in the heat pump according to the temperature of the heat source and the suction pressure of the compressor and select optimal matched volume under the current working condition so as to improve the energy efficiency ratio of the heat pump. The structure can fundamentally overcome the defect of low seasonality of a heat pump system so as to greatly improve the seasonal energy efficiency ratio of the heat pump. The intelligent heat pump has a simple structure, low cost, long service life and low maintenance cost, and is convenient to process, easy to realize and suitable for family use, the seasonal energy efficiency ratio of the heat pump can be effectively improved, the improvement of domestic heat pump technology can be powerfully pushed and the large-scale popularization of high-efficiency energy-saving heat pumps is promoted.
Description
The invention belongs to the heat pump industry field, relate to a kind of change positive displacement intelligence heat pump structure and controller thereof that can improve Energy Efficiency Ratio under the heat pump Various Seasonal.
Background technology
The Energy Efficiency Ratio that improves heat pump is the key technology that improves heat pump efficiency, popularizes the heat pump use.Be tending towards ripe today in the refrigerant technology development, the parts performance optimization of heat pump and structure optimization are the keys that improves the heat pump Energy Efficiency Ratio, also are the bases of improving heat pump practicality and popularization.Energy-efficient heat pump will be used widely in civilian and industrial occasions.
Yet though air source heat pump becomes be most widely used in the many patterns of heat pump a kind of with its distinct advantages, its application but is subjected to the constraint of weather conditions greatly.Along with the rising or the decline of outside air temperature, indoor heat demand can change, and this moment, conventional air source heat pump will produce following point.
(1) along with the reduction of outside air temperature, the cold-producing medium evaporation efficiency of low temperature side thermal source reduces, and the unit inspiratory capacity descends rapidly, and the heating capacity of heat pump reduces.If do not increase the compression ratio of compressor, just can not satisfy indoor maximum heating thermic load.In order to satisfy indoor heat demand, need to increase the compression ratio of compressor.The continuous increase of compressor pressure ratios can cause the delivery temperature of compressor to raise rapidly.Work long hours under the lower operating mode of heat source temperature, compressor can be because of preventing overheated automatic shutdown protection, and this makes that heat pump can only be in the above operate as normal of certain heat source temperature.Because the increase of compressor pressure ratio, the Energy Efficiency Ratio of system (COP) sharply descends.
(2) if heat pump only designs under the low temperature condition, when heat source temperature was higher, the heating capacity of heat pump can required thermic load so.If this moment, the keying by the control circulation reduced heating capacity, can reduce systematic function.
Simultaneously, considering that the size of the volume of heat pump pipeline and refrigerant volume thermal capacitance can directly influence the Energy Efficiency Ratio of air source heat pump, is to solve air source heat pump low temperature adaptability problem, and the present invention proposes to become positive displacement intelligence heat pump structure.This structure can adapt to the operation of heat pump under the varying environment temperature, improves systematic energy efficiency ratio and performance as far as possible, greatly promotes promoting the use of of heat pump.
Summary of the invention
The objective of the invention is: provide a kind of simple in structure, be easy to realize, can effectively improve the novel intelligent heat pump structure of Energy Efficiency Ratio at the lower problem of Energy Efficiency Ratio under the air source heat pump Various Seasonal.
Technical scheme of the present invention is: novel intelligent heat pump structure has increased a structure on the basis of existing heat pump basic structure, employing increases linear actuator and carries out the adjusting of heat pump refrigerant-cycle systems volume on the suction side pipeline, and drive with the piston rod of stepper motor to linear actuator, wherein the displacement of piston rod is controlled according to heat source temperature and compressor air suction pressure automatically by controller.
Becoming positive displacement intelligence heat pump structure comprises: heat release heat exchanger 1, fluid reservoir 2, compressor 3, expansion valve 4, linear actuator 5, heat absorption heat exchanger 6 (referring to Fig. 1).Absorbed the low-temp low-pressure liquid refrigerant behind the heat and undergone phase transition, become the low-temp low-pressure gaseous refrigerant and enter compressor 3, the compressed cold-producing medium that becomes HTHP, high-temperature high-pressure refrigerant enters heat release heat exchanger 1 subsequently, release heat, isobaric cooling, liquefy, through cold-producing medium fluid reservoir 2, enter expansion valve 4, and in expansion valve, the high-pressure refrigerant isothermal expansion, release energy, cold-producing medium flows into heat absorption heat exchanger 6 subsequently, absorbs heat, the isobaric intensification, volumetric expansion, become the gaseous state low pressure refrigerant, and then enter compressor 3, finish circulation, repeat above process, can realize that the process of heating is finished in the transfer of heat.
Advantage of the present invention is: at the different pump of air source heat lower characteristics of Energy Efficiency Ratio under season, having proposed a kind of mechanism comes effectively refrigerant condition in the heat pump circulating system and compressor pressure ratios directly to be regulated, thereby significantly reduce the compressor electric motor power consumption, improve the seasonal adaptation ability of heat pump.
Description of drawings
Fig. 1 is a volume adjustable intelligence heat pump structure diagram of the present invention.
1-heat release heat exchanger; The 2-fluid reservoir; The 3-compressor; The 4-expansion valve; The 5-linear actuator; The 6-heat exchanger that absorbs heat.
The specific embodiment
The realization of this volume adjustable structure is mainly reflected on the compressor air suction lateral line and adds linear actuator, and drives the piston of linear actuator by stepper motor, carries out the adjusting of refrigerant-cycle systems volume.Controller is gathered heat source temperature and compressor air suction pressure, calculates optimum volumetric values and controls the linear actuator motion.
Claims (2)
1. the structure that can regulate heat pump inner refrigerant circulatory system volume, it is characterized in that: on the refrigerant-cycle systems pipeline, insert linear actuator, and control the piston position of linear actuator automatically according to heat source temperature and compressor air suction pressure, realize the volume adjustment of whole heat pump circulating system, thereby change compressor air suction pressure, cold-producing medium operating pressure and boiling point etc.
2. realize that a kind of of volume adjustment under the described structure of claim 1 can carry out the volume controller of control automatically according to heat source temperature that changes and compressor air suction pressure, it is characterized in that: heat source temperature and compressor air suction pressure are gathered, minimize and cold-producing medium boiling point optimization calculates optimum Match volume under the current working with compression ratio, and the piston rod stroke of control linear actuator, the Based Intelligent Control of realization heat pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100098237A CN102072591A (en) | 2011-01-18 | 2011-01-18 | Variable volume intelligent heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100098237A CN102072591A (en) | 2011-01-18 | 2011-01-18 | Variable volume intelligent heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102072591A true CN102072591A (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100098237A Pending CN102072591A (en) | 2011-01-18 | 2011-01-18 | Variable volume intelligent heat pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN102072591A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604245A (en) * | 2013-07-22 | 2014-02-26 | 陈恩鉴 | Steam compression type air-conditioning system mounted with energy efficiency amplifier |
| CN105004085A (en) * | 2015-07-31 | 2015-10-28 | 中国科学院广州能源研究所 | Steam compression type air conditioning system |
| CN106123398A (en) * | 2016-08-08 | 2016-11-16 | 珠海格力电器股份有限公司 | The oil return control device of a kind of air-conditioner, control method and air-conditioner |
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| CN1648548A (en) * | 2004-01-29 | 2005-08-03 | 乐金电子(天津)电器有限公司 | Refrigeration circulation system using refrigerant compression volume variable compressor |
| US20060242976A1 (en) * | 2005-04-28 | 2006-11-02 | Calsonic Kansei Corporation | Air conditioner and control system therefor |
| JP2008032243A (en) * | 2006-07-26 | 2008-02-14 | Daikin Ind Ltd | Refrigerating device |
| CN101460789A (en) * | 2006-06-01 | 2009-06-17 | 开利公司 | Multi-stage compressor unit for a refrigeration system |
| WO2010021491A1 (en) * | 2008-08-22 | 2010-02-25 | Lg Electronics Inc. | Variable capacity type rotary compressor, cooling apparatus having the same, and method for driving the same |
| CN101893349A (en) * | 2010-06-25 | 2010-11-24 | 蔡茂林 | Twin-cylinder reciprocating pressure energy reclaiming heat-pump mechanism |
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2011
- 2011-01-18 CN CN2011100098237A patent/CN102072591A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648548A (en) * | 2004-01-29 | 2005-08-03 | 乐金电子(天津)电器有限公司 | Refrigeration circulation system using refrigerant compression volume variable compressor |
| US20060242976A1 (en) * | 2005-04-28 | 2006-11-02 | Calsonic Kansei Corporation | Air conditioner and control system therefor |
| CN101460789A (en) * | 2006-06-01 | 2009-06-17 | 开利公司 | Multi-stage compressor unit for a refrigeration system |
| JP2008032243A (en) * | 2006-07-26 | 2008-02-14 | Daikin Ind Ltd | Refrigerating device |
| WO2010021491A1 (en) * | 2008-08-22 | 2010-02-25 | Lg Electronics Inc. | Variable capacity type rotary compressor, cooling apparatus having the same, and method for driving the same |
| CN101893349A (en) * | 2010-06-25 | 2010-11-24 | 蔡茂林 | Twin-cylinder reciprocating pressure energy reclaiming heat-pump mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604245A (en) * | 2013-07-22 | 2014-02-26 | 陈恩鉴 | Steam compression type air-conditioning system mounted with energy efficiency amplifier |
| WO2015010502A1 (en) * | 2013-07-22 | 2015-01-29 | 余伟俊 | Vapor compression air-conditioning system equipped with energy efficiency booster |
| CN103604245B (en) * | 2013-07-22 | 2016-04-13 | 陈恩鉴 | A kind of steam compression type air-conditioning system that energy efficiency amplifier is housed |
| CN105004085A (en) * | 2015-07-31 | 2015-10-28 | 中国科学院广州能源研究所 | Steam compression type air conditioning system |
| CN106123398A (en) * | 2016-08-08 | 2016-11-16 | 珠海格力电器股份有限公司 | The oil return control device of a kind of air-conditioner, control method and air-conditioner |
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Owner name: BEIHANG UNIVERSITY Free format text: FORMER OWNER: CAI MAOLIN Effective date: 20130402 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20130402 Address after: 100191 Haidian District, Xueyuan Road, No. 37, Applicant after: Beihang University Address before: 100191 Haidian District, Xueyuan Road, No. 37, Applicant before: Cai Maolin |
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Application publication date: 20110525 |