CN101004302B - Frostless air-source heat pump - Google Patents
Frostless air-source heat pump Download PDFInfo
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- CN101004302B CN101004302B CN2006101460991A CN200610146099A CN101004302B CN 101004302 B CN101004302 B CN 101004302B CN 2006101460991 A CN2006101460991 A CN 2006101460991A CN 200610146099 A CN200610146099 A CN 200610146099A CN 101004302 B CN101004302 B CN 101004302B
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Abstract
An air source heat pump of frost-free type is formed by connecting an air source/water source heat exchanger, a refrigerating/heating switching-over unit, a four-way change valve, a compressor, a frost-free finned heat exchanger single set or a frost-free finned heat exchanger double set at outdoor, a throttle mechanism and a single-way valve/solenoid valve through connection pipelines. During heating circulation, a supercooling finned heat exchanger and an evaporated finned heat exchanger are serially connected, the air source flowing out tube of the supercooling finned heat exchanger is heated by a high-temperature and high pressure refrigerant liquid flowing in the tube of the supercooling finned heat exchanger. The evaporation temperature of the refrigerant in the tube of the evaporated finned heat exchanger is raised through the heated air source flowing to the evaporated finned heat exchanger, thereby realizing the frost-free operation of the air source heat pump, overcoming all the defects of the frost air source heat pump. During refrigeration circulation, the supercooling finned heat exchanger and the evaporated finned heat exchanger are parallely connected and used as a condenser.
Description
Affiliated technical field
The present invention relates to a kind ofly from the outdoor environment air, absorb heat and be transported to indoor air source heat pump, particularly Frostless air-source heat pump.
Background technology
Air source heat pump is connected to form by pipeline by indoor air source/water source heat exchanger 1, refrigerating/heating switching device shifter 2, four-way change-over valve 3, compressor 4, outdoor finned type heat exchanger list group 8 or two groups 9 of finned type heat exchanger and throttle mechanism 15 etc., the two groups 9 of finned type heat exchanger list group 8 or finned type heat exchanger absorb heat from outdoor low temperature environment air, with temperature increase and be transported to indoorly, it is used widely in field of air conditioning.
Air source heat pump adopts steam compression type to heat circulation: from the low temperature of outdoor finned type heat exchanger list group 8 or the two groups 9 of finned type heat exchanger, the refrigerant gas of low pressure is sucked by compressor 4 through four-way change-over valve 3, compression back high temperature, the refrigerant gas of high pressure then passes through the air source/water source heat exchanger 1 in four-way change-over valve 3 inlet chambers, refrigerant gas in the air source/heat exchanger 1 release heat condensation in water source becomes liquid, through the 15 step-down throttlings of indoor set throttle mechanism, two group 9 evaporations of finned type heat exchanger list group 8 that inlet chamber is outer or finned type heat exchanger also absorb heat, thereby become low temperature once more, the refrigerant gas of low pressure is siphoned away by compressor 4.
When existing air source heat pump uses in the environment of north cold area and winter low temperature humidity, to exist the easy frosting of outdoor finned heat exchanger, frosting behind efficiency low and can influence safe operation that heat pump puts, need frequent defrosting and defrosting time is long, can't provide heat that defectives such as cold are provided on the contrary during the defrosting always, makes the application of air source heat pump be subjected to certain limitation.
In order to overcome these defectives, prior art adopt on the air source heat pump be equipped with again other as auxiliary thermal sources such as electric heaters so that the defective of heat can't be provided during overcoming defrosting; Perhaps on air source heat pump, adopt return-air overheated to improve heat pump heat supply temperature; Perhaps adopting local overcooling on the air source heat pump to spend the freezing accumulation in water-collecting tray of white water after preventing winter frost removing.These technology all can not solve the defective of air source heat pump frosting.
Existing air source heat pump generally all is that according to the rules nominal cooling condition comes finned type heat exchanger list group 8 or the two groups 9 of finned type heat exchanger outside the design office.The air source heat pump that designs like this, the heat that the heat that its indoor air source/water source heat exchanger 1 is absorbed when using as evaporimeter under nominal cooling condition is discharged when using as condenser under nominal heating condition is roughly suitable, and the heat that the two groups 9 of outdoor finned type heat exchanger list group 8 or finned type heat exchanger are absorbed when using as evaporimeter under nominal heating condition only is that it uses about half of time institute's release heat as condenser under nominal cooling condition.Clearly, under nominal heating condition, the heat exchange area of the two groups 9 of outdoor finned type heat exchanger list group 8 or finned type heat exchanger is with respect to the heat of its required absorption, have near 50% more than needed, then surplus capacity is bigger when environment temperature is lower, but because the influence of factors such as refrigerant mass fluxes, air quantity, frosting, how many performance boosts heat exchange area more than needed does not bring to air source heat pump.
Heat exchange area more than needed relatively made the present invention when solving air source heat pump frosting defective and do not need to increase excessive cost and become possibility when the two groups 9 of outdoor finned type heat exchanger list group 8 or finned type heat exchanger heated.
Summary of the invention
For solving the defective that existing air source heat pump efficient is not high, have the air source heat pump frosting, the technology of the present invention adopts a kind of new Frostless air-source heat pump, this air source heat pump is the operational efficiency height not only, and under the environment of low temperature and moisture, can no longer need similar auxiliary thermal sources such as electric heater continuously to the indoor heat that provides.
The technical solution adopted for the present invention to solve the technical problems is: connected to form by pipeline by indoor air source/water source heat exchanger 1, refrigerating/heating switching device shifter 2, four-way change-over valve 3, compressor 4, outdoor frostless finned heat exchanger list group 81 or the two groups 91 of frostless finned type heat exchanger, throttle mechanism 11,15,202 and check valve/ magnetic valve 10,13,16,17,201,204 at least.It is characterized in that: arrange side by side by cold finned heat exchanger 61 of outdoor mistake and evaporation finned heat exchanger 62, and cross the approaching side that cold finned heat exchanger 61 is positioned at the air source and form frostless finned heat exchanger list group 81 or the two groups 91 of frostless finned type heat exchanger, heating circulation time, cross cold finned heat exchanger 61 and evaporate finned heat exchanger 62 and be connected in series, evaporation finned heat exchanger 62 uses as evaporimeter and heats, cross 61 of cold finned heat exchangers and use as subcooler, an off-premises station throttle mechanism 11 was connected between cold finned heat exchanger 61 and the evaporation finned heat exchanger 62.When kind of refrigeration cycle, cross cold finned heat exchanger 61 and evaporate finned heat exchanger 62 and be connected in parallel, use as condenser jointly, first check valve/magnetic valve 10 is in parallel with the community of evaporation finned heat exchanger 62 and off-premises station throttle mechanism 11, and second check valve/magnetic valve 13 is connected in parallel with the community of crossing cold finned heat exchanger 61 and off-premises station throttle mechanism 11.
The invention has the beneficial effects as follows, owing to heating circulation time, crossing cold finned heat exchanger 61 uses as condenser jointly with indoor air source/water source heat exchanger 1, cross the refrigerant liquid that flows through HTHP in cold finned heat exchanger 61 pipes, flowing through the outer air source of cold finned heat exchanger 61 pipes will be heated, this heated air source and course is to evaporation finned heat exchanger 62, cold-producing medium evaporating temperature in evaporation finned heat exchanger 62 pipes will be raised about 10 ℃, the lifting of the big more then evaporating temperature of the difference of condensation temperature and evaporating temperature is also high more, thereby realized the frostless operation of air source heat pump, overcome whole defectives of frosting air source heat pump.When kind of refrigeration cycle, excessively cold finned heat exchanger 61 and evaporation finned heat exchanger 62 are connected in parallel and use as condenser jointly, have recovered the big state of condensation area requirement.Compare with existing air source heat pump, the two groups 91 of frostless finned heat exchanger list group 81 or frostless finned type heat exchanger be divided into two and the gross area and an original finned heat exchanger list group 8 or finned type heat exchanger two organize 9 suitable, auxiliary heater spares such as electric heater have but been saved, thereby cost does not increase, but solved the problems such as frosting, defrosting and inefficiency that all the time influence air source heat pump widespread adoption under cold wet environment, and simple in structure, realize easily.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the embodiment of the air source heat pump of a frostless heat exchanger list group of the present invention.
Fig. 2 is the embodiment of the air source heat pump of the two groups of another frostless heat exchanger of the present invention.
Fig. 3 is the embodiment of air source heat pump of the band economizer system of another frostless heat exchanger list group of the present invention.
Fig. 4 is the embodiment of the air source heat pump of the two band economizer systems of organizing of another frostless heat exchanger of the present invention.
Fig. 5 is the systematic schematic diagram of air source heat pump of a heat exchanger list group of prior art.
Fig. 6 is the systematic schematic diagram of the two air source heat pumps of organizing of a heat exchanger of prior art.
Fig. 7 is the part figure that air source/water source heat exchanger of the embodiment of another Frostless air-source heat pump of the present invention is parallel with check valve/magnetic valve.
1. air source/water source heat exchanger among the figure, 2. refrigerating/heating switching device shifter, 3. four-way change-over valve, 4. compressor, 5. collector, 6. finned heat exchanger, 61. cross cold finned heat exchanger, 62. evaporation finned heat exchanger, 7. finned tube is listed as, 8. finned type heat exchanger list group, 81. frostless finned type heat exchanger list groups, the 9. two groups of finned type heat exchanger, 91. the two groups of frostless finned type heat exchanger, 10. first check valve/magnetic valve, 13. second check valve/magnetic valve, 16. the 3rd check valve/magnetic valve, 17. the 4th check valve/magnetic valve, 201. the 5th check valve/magnetic valve, 204. six or five check valves/magnetic valve, 11. off-premises station throttle mechanisms, 15. indoor set throttle mechanism, 202. the economizer throttle mechanism, 12. liquid-dividing heads, 121. interior liquid-dividing head, 122. outer liquid-dividing head, 14. ventilation blower, 203. economizer coolers.
The specific embodiment
In the embodiment of the air source heat pump of a frostless heat exchanger list group shown in Figure 1, formed cold finned heat exchanger 61 by collector 5, finned tube row 7 and outer liquid-dividing head 122.Form evaporation finned heat exchanger 62 by collector 5, finned tube row 7 and interior liquid-dividing head 121.Form frostless finned heat exchanger list group 81 by crossing cold finned heat exchanger 61 and evaporating finned heat exchanger 62.Between air source/water source heat exchanger 1 and frostless finned type heat exchanger list group 81, the 3rd check valve/magnetic valve 16 is in parallel with indoor set throttle mechanism 15.
Heating circulation time, cross cold finned heat exchanger 61 and evaporate finned heat exchanger 62 and be connected in series, evaporation finned heat exchanger 62 uses as evaporimeter and heats, cross 61 of cold finned heat exchangers and use as subcooler, an off-premises station throttle mechanism 11 was connected between cold finned heat exchanger 61 and the evaporation finned heat exchanger 62.Shown in the solid arrow among the figure, come the low temperature of spontaneous evaporation finned heat exchanger 62, the refrigerant gas of low pressure is sucked by compressor 4, compression back high temperature, the refrigerant gas of high pressure then enters air source/water source heat exchanger 1 through refrigerating/heating switching device shifter 2 and four-way change-over valve 3, refrigerant gas in the air source/heat exchanger 1 release heat condensation in water source becomes liquid, liquid refrigerant entered cold finned heat exchanger 61 through the 3rd check valve/magnetic valve 16 again and further cooled off, at this moment refrigerant liquid obtains cold fully excessively, pass through the 11 step-down throttlings of off-premises station throttle mechanism then, enter 62 evaporations of evaporation finned heat exchanger and absorb heat, thereby become low temperature once more, the refrigerant gas of low pressure is siphoned away by compressor 4.Heat circulation time indoor set throttle mechanism 15 and close, the first check valve/magnetic valve 10 and second check valve/magnetic valve 13 stops cold-producing medium to flow through.
When kind of refrigeration cycle, cross cold finned heat exchanger 61 and evaporate finned heat exchanger 62 and be connected in parallel, use as condenser jointly, first check valve/magnetic valve 10 is in parallel with the community of evaporation finned heat exchanger 62 and off-premises station throttle mechanism 11, and second check valve/magnetic valve 13 is connected in parallel with the community of crossing cold finned heat exchanger 61 and off-premises station throttle mechanism 11.Shown in the dotted arrow among the figure, low temperature from air source/water source heat exchanger 1, the refrigerant gas of low pressure is sucked by compressor 4, compression back high temperature, the refrigerant gas of high pressure then enters frostless finned type heat exchanger list group 81 refrigerant gas through refrigerating/heating switching device shifter 2 and four-way change-over valve 3 becomes liquid in frostless finned type heat exchanger list group 81 release heat condensations, pass through the 15 step-down throttlings of indoor set throttle mechanism then, enter air source/water source heat exchanger 1 evaporation and absorb heat, thereby become low temperature once more, the refrigerant gas of low pressure is siphoned away by compressor 4.Off-premises station throttle mechanism 11 cuts out during kind of refrigeration cycle, and the 3rd check valve/magnetic valve 16 stops cold-producing medium to flow through, and cold-producing medium flows through first check valve/magnetic valve 10 and second check valve/magnetic valve 13.
In the embodiment of the two air source heat pumps of organizing of another frostless heat exchanger shown in Figure 2, only be with the difference of Fig. 1: cross 81, two groups of frostless finned heat exchanger list group 81 symmetries of cold finned heat exchanger 61 and the evaporation finned heat exchanger 62 frostless finned heat exchanger list groups of composition and compose in parallel the frostless finned heat exchanger list group 81 of two group 91 replacements of frostless finned heat exchanger.
In the embodiment of the air source heat pump of the band economizer system of another frostless heat exchanger list group shown in Figure 3, and the difference of Fig. 1 only is: be serially connected with economizer system 200 between the 3rd check valve/magnetic valve 16 and indoor set throttle mechanism 15 and tie-point and frostless finned type heat exchanger list group 81, the flash gas port of export of its economizer cooler 203 shell sides is connected with the gas supplementing opening of compressor 4, the liquid feeding end of shell side is connected with economizer throttle mechanism 202, the two ends of economizer cooler 203 tube sides two the 5th check valve/magnetic valves 201 that are connected in series in opposite directions in parallel and the contact of the 6th check valve/magnetic valve 204, the five check valves/magnetic valve 201 and the 6th check valve/magnetic valve 204 are connected with the other end of economizer throttle mechanism 202.The band economizer system further improves the Energy Efficiency Ratio of air source heat pump.
In the embodiment of the air source heat pump of the band economizer systems of the two groups of another frostless heat exchanger shown in Figure 4, only be with the difference of Fig. 3: two groups of frostless finned heat exchanger list group 81 symmetries compose in parallel the two groups 91 of frostless finned heat exchanger and replace frostless finned heat exchanger list groups 81.
Air source/water source heat exchanger at the embodiment of another Frostless air-source heat pump shown in Figure 7 is parallel with in the part of check valve/magnetic valve, air source/water source heat exchanger 1 is parallel with the 4th check valve/magnetic valve 17, the inlet of the 4th check valve/magnetic valve 17 is connected on the tube connector of air source/water source heat exchanger 1 and four-way change-over valve 3, the outlet of the 4th check valve/magnetic valve 17 is connected air source/water source heat exchanger 1 and indoor set throttle mechanism 15 to each position of the tube connector of evaporation finned heat exchanger 62, can reach for Fig. 1 with this parallel connection, 2,3,4 air source/water source heat exchanger 1 part.The 4th check valve/magnetic valve 17 becomes path when heating condition, the by-passing part high pressure, high temperature refrigerant satisfies the more operation of cryogenic conditions to improve environment temperature or evaporating temperature, disconnects when cooling condition.
When crossing cold finned heat exchanger 61 and evaporation finned heat exchanger 62 arranged side by side arrangements, cross the approaching side of cold finned heat exchanger 61 in the air source.
The finned tube row 7 of forming cold finned heat exchanger 61 and evaporation finned heat exchanger 62 are staggered.
The finned tube row 7 of forming cold finned heat exchanger 61 are single-row or multiple row.
The finned tube row 7 of forming evaporation finned heat exchanger 62 are single-row or multiple row.
Frostless finned type heat exchanger list the group 81 in parallel or many groups of series connection.
Two the group 91 in parallel or many groups of series connection of frostless finned type heat exchanger.
Claims (8)
1. Frostless air-source heat pump, at least by indoor air source/water source heat exchanger (1), refrigerating/heating switching device shifter (2), four-way change-over valve (3), compressor (4), outdoor frostless finned heat exchanger list group (81) or the two group of frostless finned type heat exchanger (91), throttle mechanisms (11,15,202) and check valve/magnetic valve (10,13,16,17,201,204) connect to form by pipeline, it is characterized in that:
Described Frostless air-source heat pump is arranged side by side by cold finned heat exchanger of outdoor mistake (61) and evaporation finned heat exchanger (62), and cross the approaching side that cold finned heat exchanger (61) is positioned at the air source and form frostless finned heat exchanger list group (81) or the two groups of frostless finned type heat exchanger (91), heating circulation time, cross cold finned heat exchanger (61) and evaporate finned heat exchanger (62) and be connected in series, evaporation finned heat exchanger (62) uses as evaporimeter and heats, cross cold finned heat exchanger (61) and then use as subcooler, an off-premises station throttle mechanism (11) was connected between cold finned heat exchanger (61) and the evaporation finned heat exchanger (62);
When kind of refrigeration cycle, cross cold finned heat exchanger (61) and evaporate finned heat exchanger (62) and be connected in parallel, use as condenser jointly, first check valve/magnetic valve (10) is in parallel with the community of evaporation finned heat exchanger (62) and off-premises station throttle mechanism (11), and second check valve/magnetic valve (13) is connected in parallel with the community of crossing cold finned heat exchanger (61) and off-premises station throttle mechanism (11);
Between air source/water source heat exchanger (1) and frostless finned type heat exchanger list group (81) or the two groups of frostless finned type heat exchanger (91), the 3rd check valve/magnetic valve (16) is in parallel with indoor set throttle mechanism (15).
Described Frostless air-source heat pump, it is serially connected with economizer system (200) between the 3rd check valve/magnetic valve (16) and indoor set throttle mechanism (15) and tie-point and frostless finned type heat exchanger list group (81) or the two groups of frostless finned type heat exchanger (91), the flash gas port of export of its economizer cooler (203) shell side is connected with the gas supplementing opening of compressor (4), the liquid feeding end of shell side is connected with economizer throttle mechanism (202), the two ends of economizer cooler (203) tube side two the 5th check valve/magnetic valve (201) and the 6th check valve/magnetic valves (204) that are connected in series in opposite directions in parallel, the contact of the 5th check valve/magnetic valve (201) and the 6th check valve/magnetic valve (204) is connected with the other end of economizer throttle mechanism (202).
Described Frostless air-source heat pump, its air source/water source heat exchanger (1) is parallel with the 4th check valve/magnetic valve (17), the inlet of the 4th check valve/magnetic valve (17) is connected on the tube connector of air source/water source heat exchanger (1) and four-way change-over valve (3), and the outlet of the 4th check valve/magnetic valve (17) is connected air source/water source heat exchanger (1) and indoor set throttle mechanism (15) to each position of the tube connector that evaporates finned heat exchanger (62); The 4th check valve/magnetic valve (17) becomes path when heating condition, the by-passing part high pressure, high temperature refrigerant disconnects when cooling condition.
2. Frostless air-source heat pump according to claim 1 is characterized in that: formed cold finned heat exchanger (61) by collector (5), finned tube row (7) and outer liquid-dividing head (122).
3. Frostless air-source heat pump according to claim 1 is characterized in that: form evaporation finned heat exchanger (62) by collector (5), finned tube row (7) and interior liquid-dividing head (121).
4. Frostless air-source heat pump according to claim 1 is characterized in that: the finned tube row (7) of forming cold finned heat exchanger (61) and evaporation finned heat exchanger (62) are staggered.
5. Frostless air-source heat pump according to claim 1 is characterized in that: the finned tube row (7) of forming cold finned heat exchanger (61) are single-row or multiple row.
6. Frostless air-source heat pump according to claim 1 is characterized in that: the finned tube row (7) of forming evaporation finned heat exchanger (62) are single-row or multiple row.
7. Frostless air-source heat pump according to claim 1 is characterized in that: the in parallel or many groups of series connection of frostless finned type heat exchanger list group (81).
8. Frostless air-source heat pump according to claim 1 is characterized in that: the in parallel or many groups of series connection of the two groups of frostless finned type heat exchanger (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101460991A CN101004302B (en) | 2006-01-25 | 2006-11-15 | Frostless air-source heat pump |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620095163 | 2006-01-25 | ||
| CN200620095163.3 | 2006-01-25 | ||
| CN2006101460991A CN101004302B (en) | 2006-01-25 | 2006-11-15 | Frostless air-source heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101004302A CN101004302A (en) | 2007-07-25 |
| CN101004302B true CN101004302B (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101460991A Expired - Fee Related CN101004302B (en) | 2006-01-25 | 2006-11-15 | Frostless air-source heat pump |
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| Country | Link |
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| CN (1) | CN101004302B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152607A (en) * | 2015-04-13 | 2016-11-23 | 韩增生 | Air energy heat pump |
| CN105066529A (en) * | 2015-08-13 | 2015-11-18 | 珠海格力电器股份有限公司 | Heat pump set |
| CN110762889A (en) * | 2019-10-23 | 2020-02-07 | 广东纽恩泰新能源科技发展有限公司 | Air source heat pump system for preventing frost accumulation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337552A (en) * | 2000-08-03 | 2002-02-27 | 北京海尔集成电路设计有限公司 | Ice preventer for wind cooled heat pump air conditioner |
| JP2002286318A (en) * | 2001-03-26 | 2002-10-03 | Noriyuki Yamauchi | Air conditioner and condenser used therefor |
| CN1403756A (en) * | 2001-08-29 | 2003-03-19 | 广东科龙电器股份有限公司 | Uninterrupted heating process and air conditioning system |
| CN2670854Y (en) * | 2003-11-11 | 2005-01-12 | 王德元 | Frostless high-efficient air-cooled heat pump set |
| CN1690593A (en) * | 2004-04-28 | 2005-11-02 | 乐金电子(天津)电器有限公司 | Frost-proof heat pump capable of continuous operation |
-
2006
- 2006-11-15 CN CN2006101460991A patent/CN101004302B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337552A (en) * | 2000-08-03 | 2002-02-27 | 北京海尔集成电路设计有限公司 | Ice preventer for wind cooled heat pump air conditioner |
| JP2002286318A (en) * | 2001-03-26 | 2002-10-03 | Noriyuki Yamauchi | Air conditioner and condenser used therefor |
| CN1403756A (en) * | 2001-08-29 | 2003-03-19 | 广东科龙电器股份有限公司 | Uninterrupted heating process and air conditioning system |
| CN2670854Y (en) * | 2003-11-11 | 2005-01-12 | 王德元 | Frostless high-efficient air-cooled heat pump set |
| CN1690593A (en) * | 2004-04-28 | 2005-11-02 | 乐金电子(天津)电器有限公司 | Frost-proof heat pump capable of continuous operation |
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| Publication number | Publication date |
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| CN101004302A (en) | 2007-07-25 |
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