CN100376850C - Hot pump system with variable capacity - Google Patents
Hot pump system with variable capacity Download PDFInfo
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- CN100376850C CN100376850C CNB2006100500224A CN200610050022A CN100376850C CN 100376850 C CN100376850 C CN 100376850C CN B2006100500224 A CNB2006100500224 A CN B2006100500224A CN 200610050022 A CN200610050022 A CN 200610050022A CN 100376850 C CN100376850 C CN 100376850C
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Abstract
The present invention discloses a heat pump system with variable capacity, which comprises a separating device and a main system, wherein the separating device is arranged between a first throttling device and a meeting point of a condenser outlet and a compressor outlet, and is composed of a rectifying column and a liquid storage tank for storing working substances of a low boiling point. The system separates and extracts the working substances of a high and the low boiling points to change the running concentration of the mixed working substances in the system so as to meet the requirements of different capacity of the system. The present invention solves the problem that the lubricating oil of a compressor of a system which adjusts the capacity by using the method of storing the working substances of a high point is reduced so as to avoid the damage caused by oil shortage of the compressor.
Description
Technical field
The present invention relates to a kind of compression type heat pumping system, relate in particular to a kind of hot pump system with variable capacity.
Background technology
Heat pump is that a kind of high potential that utilizes makes heat flow to the device of high-order thermal source from low level heat energy, but the heat that it is supplied with is the high potential that consumed and the low potential energy sum of absorption, and heating has remarkable energy saving effect in the winter time.When but the heat pump characteristic has determined to heat in the winter time, the energy of heat pump output and the be lowered into opposite tendency of building consumption along with environment temperature, the needs that this certainly will influence comfortableness have weakened the advantage of heat pump.Mixed working medium changing capacity regulating technology is applied to heat pump, can make heat pump satisfy the demand of high load capacity under the low temperature environment, for example U.S. Pat A patent 4722195, USA patent5012651, Chinese patent 00135060.9,98118641.6,03141556.3 etc. all belong to this type of invention.USApatent 4722195 described systems wherein, the rectifier unit in parallel with the throttling arrangement of main system is by rectifying column, high pressure component fluid reservoir, heater, cooling device is formed, by rectifier unit the high pressure component is separated, make system's low pressure concentration of component with higher proportion under the underload requirement circulate, and under high workload demand, irritate the concentration circulation to dash.The energy of the heater of rectifying column is obtained through heat exchanger from system in the system.Owing to obtain these energy from system and finish by heat exchanger, unavoidably have heat transfer temperature loss, influence the needed temperature of distillation process, thereby influence rectification effect; In addition, this way has also increased the pipeline of system, makes system complex, and manufacturing cost increases.USA patent5012651 and Chinese patent 03141556.3 all have the fluid reservoir that higher boiling working medium is rich in storage, during the system increase-volume, also compressor lubricant oil is stored in the fluid reservoir when storing higher boiling working medium, make lubricating oil not bring back to compressor, thereby the easy oil starvation of compressor cause damaging by systemic circulation.Chinese patent 03141556.3 is placed on low pressure stage with separator, need carry out the loss that heat is avoided in special insulation.In order to overcome above-mentioned shortcoming, the present invention is proposed.
Summary of the invention
The purpose of this invention is to provide a kind of mixed working fluid varying capacity heat pump that the low boiling working fluid fluid reservoir is rich in storage that has.
Hot pump system with variable capacity comprises main system of being made up of outdoor heat exchanger, compressor, first throttle device and indoor heat exchanger and the separator of being made up of rectifying column, fluid reservoir, cooler.Wherein, main system is: first pipeline that exhaust outlet of compressor is told links to each other with an end of first magnetic valve through the first equalizing pressure spare, second pipeline that exhaust outlet of compressor is told links to each other with first port of four-way change-over valve, second port of four-way change-over valve links to each other with an end of first check valve and second check valve respectively through indoor heat exchanger, first pipeline that first check valve is told links to each other with the other end of first magnetic valve, second pipeline that first check valve is told links to each other with top first port of fluid reservoir through second magnetic valve, the 3rd pipeline that first check valve is told links to each other with bottom first port of rectifying column through the second equalizing pressure spare, the 4th pipeline that first check valve is told is connected between the 3rd port of outdoor heat exchanger and four-way change-over valve through the 5th magnetic valve and second throttling arrangement, the 5th pipeline that first check valve is told is connected between the another port of the 3rd check valve and outdoor heat exchanger through the 4th check valve, bottom second port of rectifying column links to each other with an end of cooler through the first throttle device, the other end of cooler links to each other with the 3rd single-phase valve with second check valve respectively, and the 4th port of four-way change-over valve links to each other with the compressor air suction mouth; Separator is: top first port of rectifying column links to each other with the lower port of fluid reservoir through the 3rd magnetic valve, top second port of rectifying column links to each other with top the 4th port of fluid reservoir through the 4th magnetic valve, top second port of fluid reservoir links to each other with an end of cooler, top the 3rd port of fluid reservoir links to each other with the other end of cooler, and cooler is in fluid reservoir inside.
The present invention has the following advantages:
1. separator realizes that in the high-pressure side of system high pressure separates.Low boiling working fluid is rich in storage, has solved the oil return problem of system.
2. the gas-liquid mixture of the high temperature be made up of condenser and compressor outlet working medium of rectifying column charging, distillation process does not need extra thermal source.
3. the adding of rectifying column heat need not passed through heat exchanger, makes the heat transfer temperature difference loss drop to zero, has increased the efficient of rectifying greatly, has simplified system, has reduced manufacturing cost.
4. because separator is in the operating temperature that is more or less the same with environment temperature, therefore, need not to be incubated especially processing.
Description of drawings
Accompanying drawing is the hot pump system with variable capacity structural representation.
The specific embodiment
As shown in drawings, hot pump system with variable capacity comprises main system of being made up of outdoor heat exchanger 4, compressor 1, first throttle device 3b and indoor heat exchanger 2 and the separator of being made up of rectifying column 10, fluid reservoir 6, cooler 5.Wherein, main system is: first pipeline that compressor 1 exhaust outlet is told links to each other through the end of the first equalizing pressure spare 17 with the first magnetic valve 12a, second pipeline that compressor 1 exhaust outlet is told links to each other with first port of four-way change-over valve 20, second port of four-way change-over valve 20 links to each other with the end of the second check valve 15c with the first check valve 13c respectively through indoor heat exchanger 2, first pipeline that the first check valve 13c tells links to each other with the other end of the first magnetic valve 12a, second pipeline that the first check valve 13c tells links to each other with top first port of fluid reservoir 6 through the second magnetic valve 7a, the 3rd pipeline that the first check valve 13c tells links to each other with bottom first port of rectifying column 10 through the second equalizing pressure spare 11, the 4th pipeline that the first check valve 13c tells is connected between the 3rd port of outdoor heat exchanger 4 and four-way change-over valve 20 through the 5th magnetic valve 19 and second throttling arrangement 18, the 5th pipeline that first check valve 13 is told is connected between the another port of the 3rd check valve 16c and outdoor heat exchanger 4 through the 4th check valve 14c, bottom second port of rectifying column 10 links to each other with an end of cooler 5 through first throttle device 3b, the other end of cooler 5 links to each other with the 3rd single-phase valve 16c with the second check valve 15c respectively, and the 4th port of four-way change-over valve 20 links to each other with compressor 1 air entry; Separator is: top first port of rectifying column 10 links to each other with the lower port of fluid reservoir 6 through the 3rd magnetic valve 8a, top second port of rectifying column 10 links to each other with top the 4th port of fluid reservoir 6 through the 4th magnetic valve 9a, top second port of fluid reservoir 6 links to each other with an end of cooler 5, top the 3rd port of fluid reservoir 6 links to each other with the other end of cooler 5, and cooler 5 is in fluid reservoir 6 inside
The used refrigeration working medium of the present invention is the mixture of the different pure matter cold-producing medium of two or more boiling point.This system is by the separation and the extraction of high low boiling working fluid, thus the concentration of mixed working fluid operation in the change system, to satisfy the needs of system's different capabilities.The invention solves with storing the way that is rich in higher boiling working medium and carry out the problem that the compressor lubricant oil of the system of capacity regulating reduces, the damage of having avoided compressor to cause because of oil starvation.
The described first equalizing pressure spare 17, the second equalizing pressure spare 11, first throttle device 3b, the second throttling arrangement 18b are capillary, manual modulation valve or electric expansion valve.
Provide detailed operation process of the present invention below in conjunction with accompanying drawing.
Under the heating condition, when power system capacity and customer charge approximately equal, system's constant volume operation.At this moment, the first magnetic valve 12a, the second magnetic valve 7a, the 3rd magnetic valve 8a and the 4th magnetic valve 9a close.The gas working medium that comes out from compressor 1 is through four-way change-over valve 20, enter indoor heat exchanger 2 and be condensed into high-temp liquid, enter the rectifying column bottom through the first check valve 13c, the second equalizing pressure spare 11, come out after first throttle device 3b, cooler 5, the 3rd check valve 16c, outdoor heat exchanger 4, four-way change-over valve 20 flow back to compressor 1.
When power system capacity was bigger than customer charge, system need subtract appearance.At this moment, the first magnetic valve 12a opens, and the second magnetic valve 7a closes, and the 3rd magnetic valve 8a opens, the 4th magnetic valve 9a opens.Compressor 1 exhaust outlet is divided into two-way, the first via is led to indoor heat exchanger 2 through four-way change-over valve 20, the second the tunnel by the first equalizing pressure spare 17, the first magnetic valve 12a, be mixed into the gas-liquid mixture of high temperature with the liquid of indoor heat exchanger 2 outlet, by the first check valve 13c, the second equalizing pressure spare 11, enter rectifying column 10, gas working medium rises and is cooled to liquid through the cooler 5 that enters fluid reservoir 6 tops behind the 4th magnetic valve 9a, be back in the rectifying column 10 through the 3rd magnetic valve 8a, carry out rectifying action with the gas that rises, isolate and be rich in the low boiling working fluid mixture and enter and be stored in fluid reservoir 6, be rich in the higher boiling mixed working fluid and flow into rectifying column 10 bottoms, through first throttle device 3b, cooler 5, the 3rd check valve 16c, outdoor heat exchanger 4, four-way change-over valve 20 flows back to compressor 1.Subtract and hold when finishing, the first magnetic valve 12a, the second magnetic valve 7a, the 3rd magnetic valve 8a and the 4th magnetic valve 9a close, and system carries out the constant volume operation under new capacity.
When power system capacity than customer charge hour, system needs increase-volume.At this moment, the first magnetic valve 12a closes, and the second magnetic valve 7a opens, and the 3rd magnetic valve 8a opens, and the 4th magnetic valve 9a closes.After exporting flow through four-way change-over valve 20, indoor heat exchanger 2, the first check valve 13c, the compressed machine 1 of cold-producing medium is divided into two-way, most of fluid is by the second magnetic valve 7a, enter fluid reservoir 6 tops, all the other fluids enter rectifying column 10 bottoms behind the second equalizing pressure spare 11.Under pressure, cold-producing medium the 3rd magnetic valve 8a that flows through enters rectifying column 10, and flows out from rectifying column 10 bottoms, through first throttle device 3b, cooler 5, the 3rd check valve 16c, outdoor heat exchanger 4, four-way change-over valve 20, gets back to compressor 1.When increase-volume finished, the first magnetic valve 12a, the second magnetic valve 7a, the 3rd magnetic valve 8a and the 4th magnetic valve 9a closed, and system carries out the constant volume operation under new capacity.
Under the cooling condition, system is by four-way change-over valve and four purposes that check valve commutation work realizes freezing.Its increase-volume, subtract hold and the principle of constant volume operation similar during with heating condition, no longer description here.
For the operating temperature that prevents compressor 1 is higher than normal value, the present invention is provided with the second throttling arrangement 18b and the 5th magnetic valve 19.When the operating temperature of compressor 1 just often, the 5th magnetic valve 19 cuts out.When the operating temperature of compressor 1 was higher than normal value, the 5th magnetic valve 19 was opened, and a small amount of high pressure liquid refrigerant directly enters compressor 1 through the 5th magnetic valve 19 after the step-down in second throttling arrangement, absorb heat inside, reduces the operating temperature of compressor 1.
Claims (2)
1. a hot pump system with variable capacity is characterized in that comprising main system of being made up of outdoor heat exchanger (4), compressor (1), first throttle device (3b) and indoor heat exchanger (2) and the separator of being made up of rectifying column (10), fluid reservoir (6), cooler (5); Wherein, main system is: first pipeline that compressor (1) exhaust outlet is told links to each other through the end of the first equalizing pressure spare (17) with first magnetic valve (12a), second pipeline that compressor (1) exhaust outlet is told links to each other with first port of four-way change-over valve (20), second port of four-way change-over valve (20) links to each other with the end of first check valve (13c) with second check valve (15c) respectively through indoor heat exchanger (2), first pipeline that first check valve (13c) is told links to each other with the other end of first magnetic valve (12a), second pipeline that first check valve (13c) is told links to each other with top first port of fluid reservoir (6) through second magnetic valve (7a), the 3rd pipeline that first check valve (13c) is told links to each other with bottom first port of rectifying column (10) through the second equalizing pressure spare (11), the 4th pipeline that first check valve (13c) is told is connected between the 3rd port of outdoor heat exchanger (4) and four-way change-over valve (20) through the 5th magnetic valve (19) and second throttling arrangement (18b), the 5th pipeline that first check valve (13c) is told is connected between the another port of the 3rd check valve (16c) and outdoor heat exchanger (4) through the 4th check valve (14c), bottom second port of rectifying column (10) links to each other through the end of first throttle device (3b) with cooler (5), the other end of cooler (5) links to each other with the 3rd single-phase valve (16c) with second check valve (15c) respectively, and the 4th port of four-way change-over valve (20) links to each other with compressor (1) air entry; Separator is: top first port of rectifying column (10) links to each other through the lower port of the 3rd magnetic valve (8a) with fluid reservoir (6), top second port of rectifying column (10) links to each other with top the 4th port of fluid reservoir (6) through the 4th magnetic valve (9a), top second port of fluid reservoir (6) links to each other with an end of cooler (5), top the 3rd port of fluid reservoir (6) links to each other with the other end of cooler (5), cooler (5) is in fluid reservoir (6) inside, and used refrigeration working medium is the mixture of the different pure matter cold-producing medium of two or more boiling point.
2. hot pump system with variable capacity according to claim 1 is characterized in that: the described first equalizing pressure spare (17), the second equalizing pressure spare (11), first throttle device (3b), second throttling arrangement (18b) are capillary, manual modulation valve or electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100500224A CN100376850C (en) | 2006-03-27 | 2006-03-27 | Hot pump system with variable capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100500224A CN100376850C (en) | 2006-03-27 | 2006-03-27 | Hot pump system with variable capacity |
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| Publication Number | Publication Date |
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| CN1818513A CN1818513A (en) | 2006-08-16 |
| CN100376850C true CN100376850C (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100500224A Expired - Fee Related CN100376850C (en) | 2006-03-27 | 2006-03-27 | Hot pump system with variable capacity |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102725596B (en) * | 2009-12-28 | 2014-11-26 | 大金工业株式会社 | Heat pump system |
| CN111435040A (en) * | 2019-01-11 | 2020-07-21 | 青岛海尔智能技术研发有限公司 | Refrigerating system and refrigerating equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4722195A (en) * | 1985-03-25 | 1988-02-02 | Matsushita Electric Industrial Co., Ltd. | Heat pump with a reservoir storing higher pressure refrigerant of non-azeotropic mixture |
| US5186012A (en) * | 1991-09-24 | 1993-02-16 | Institute Of Gas Technology | Refrigerant composition control system for use in heat pumps using non-azeotropic refrigerant mixtures |
| US5822996A (en) * | 1997-08-22 | 1998-10-20 | Carrier Corporation | Vapor separation of variable capacity heat pump refrigerant |
| US6003323A (en) * | 1997-01-21 | 1999-12-21 | Mitsubshiki Denki Kabushiki Kaisha | Refrigerating air-conditioning apparatus |
| JP2000346473A (en) * | 1999-06-10 | 2000-12-15 | Matsushita Refrig Co Ltd | Heat pump |
| CN1302365A (en) * | 1999-04-02 | 2001-07-04 | 松下冷机株式会社 | Heat pump |
| US6516629B2 (en) * | 2000-09-08 | 2003-02-11 | Hitachi Air Conditioning Systems Co, Ltd. | Refrigeration cycle |
| CN1514193A (en) * | 2003-07-08 | 2004-07-21 | 浙江大学 | Low temperature heat source heat pump system and its capacity regulating method |
| CN1690596A (en) * | 2003-07-08 | 2005-11-02 | 浙江大学 | Low-temperature thermal source heat pump capacity regulation method |
-
2006
- 2006-03-27 CN CNB2006100500224A patent/CN100376850C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4722195A (en) * | 1985-03-25 | 1988-02-02 | Matsushita Electric Industrial Co., Ltd. | Heat pump with a reservoir storing higher pressure refrigerant of non-azeotropic mixture |
| US5186012A (en) * | 1991-09-24 | 1993-02-16 | Institute Of Gas Technology | Refrigerant composition control system for use in heat pumps using non-azeotropic refrigerant mixtures |
| US6003323A (en) * | 1997-01-21 | 1999-12-21 | Mitsubshiki Denki Kabushiki Kaisha | Refrigerating air-conditioning apparatus |
| US5822996A (en) * | 1997-08-22 | 1998-10-20 | Carrier Corporation | Vapor separation of variable capacity heat pump refrigerant |
| CN1302365A (en) * | 1999-04-02 | 2001-07-04 | 松下冷机株式会社 | Heat pump |
| JP2000346473A (en) * | 1999-06-10 | 2000-12-15 | Matsushita Refrig Co Ltd | Heat pump |
| US6516629B2 (en) * | 2000-09-08 | 2003-02-11 | Hitachi Air Conditioning Systems Co, Ltd. | Refrigeration cycle |
| CN1514193A (en) * | 2003-07-08 | 2004-07-21 | 浙江大学 | Low temperature heat source heat pump system and its capacity regulating method |
| CN1690596A (en) * | 2003-07-08 | 2005-11-02 | 浙江大学 | Low-temperature thermal source heat pump capacity regulation method |
Non-Patent Citations (3)
| Title |
|---|
| 一种新的变浓度容量调节系统及其动态特性和参数优化. 杨昭，马一太，吕灿仁，李丽新.工程热物理学报，第18卷第2期. 1997 * |
| 混合工质变容量调节技术及其应用. 陈斌，陈光明，刘利华，洪峰，胡永亮.流体机械，第32卷第12期. 2004 * |
| 热泵空调系统工质变浓度容量调节方式试验研究. 杨昭，马一太，赵三元，张少凡.暖通空调，第28卷第6期. 1998 * |
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| CN1818513A (en) | 2006-08-16 |
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