CN102809236A - Integrated central air conditioner with medium-pressure active freezing protection and oil balance device - Google Patents
Integrated central air conditioner with medium-pressure active freezing protection and oil balance device Download PDFInfo
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- CN102809236A CN102809236A CN2012103337925A CN201210333792A CN102809236A CN 102809236 A CN102809236 A CN 102809236A CN 2012103337925 A CN2012103337925 A CN 2012103337925A CN 201210333792 A CN201210333792 A CN 201210333792A CN 102809236 A CN102809236 A CN 102809236A
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- 238000007710 freezing Methods 0.000 title claims abstract description 18
- 230000008014 freezing Effects 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 238000001035 drying Methods 0.000 claims abstract description 28
- 230000003750 conditioning effect Effects 0.000 claims description 31
- 238000001914 filtration Methods 0.000 claims description 27
- 238000004378 air conditioning Methods 0.000 claims description 18
- 230000008676 import Effects 0.000 claims description 18
- 230000002528 anti-freeze Effects 0.000 claims description 13
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 abstract description 16
- 238000001704 evaporation Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 12
- 239000003921 oil Substances 0.000 description 8
- 239000003507 refrigerant Substances 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 239000003570 air Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 206010021036 Hyponatraemia Diseases 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses an integrated central air conditioner with a medium-pressure active freezing protection and oil balance device. The integrated central air conditioner comprises a compressor, a sanitary hot water heat exchanger, an outdoor fin heat exchanger, a condensing fan arranged beside the outdoor fin heat exchanger, a bi-directional drying filter, a bi-directional electronic expansion valve, a liquid storage device, an indoor air-conditioner heat exchanger, an air liquid separator, a circulating pump, two pressure leveling capillary pipes, a four-way reversing valve and a one-way valve, which are communicated one another through pipelines. By leveling pressure by the two pressure leveling capillary pipes and with the one-way valve, the four-way reversing valve and the like, the air conditioner functions in active freezing protection from passive freezing protection when running in single cooling mode and single heating mode since the temperature of coolant in the sanitary hot water heat exchanger is always kept at the average value of the condensing temperature and the evaporating temperature, and the average value is much higher than freezing point of water. Therefore, the problem about freezing protection is thoroughly solved, energy conservation and reliability of the air conditioner is evidently improved, and the service life thereof is prolonged.
Description
Technical field
The invention belongs to air conditioner technical field, be specifically related to press in a kind of band the integrated central air-conditioning that integrates cooling and warming and health hot water of initiatively antifreeze and oil balancing unit.
Background technology
The health hot water heat exchanger of all integrated central air-conditioning (three-line machine) all is the low-pressure side that is in refrigeration system at unit refrigeration mode and heating mode on the current market, and this main design problems has:
1, system energy efficiency descends
Under summer single refrigeration mode or winter single heating mode; Hot water in the health hot water heat exchanger often and the refrigerant vapour heat exchange of low-temp low-pressure; Cause the hot water temperature to descend; Thereby cause that system often switches to refrigeration and doublely heats aqueous mode (summer) or heat aqueous mode (winter), the problem that causes like this is:
A. in summer; System is double when heating aqueous mode in refrigeration; The coefficient of performance of refrigerating of unit low during than single refrigeration mode is set under 50 ℃ of situation the hot water temperature, low about 8% (condensation temperature differs about 6 ℃) when summer, the double coefficient of performance of refrigerating that heats aqueous mode of refrigeration was than single refrigeration mode during 35 ℃ of environment temperatures; And under 30 ~ 35 ℃ ambient air temperature, the double coefficient of performance of refrigerating that heats aqueous mode that freezes low about 8% ~ 16% during than single refrigeration mode.
B. in winter, because cold-producing medium low-pressure side temperature can drop to-5 ℃ even lower temperature, refrigerant vapour increases obviously with 50 ℃ hot water heat, and the time accounting increase that heats aqueous mode is more, thereby influences the effect of hot air-conditioning.In addition; Low pressure refrigerant when heating for the balance air-conditioning in the health hot water heat exchanger is passed to the cold of hot water; Unit need switch at interval heat aqueous mode to the hot water in the boiler repeat the heating; The idle work that causes compressor to be done obviously increases (increasing by 5% ~ 10% approximately), and the energy saving of system effect is given a discount.
C. pass to the cold of hot water in order constantly to take away low pressure refrigerant in the health hot water heat exchanger, the health hot water circulating pump needs regularly circulation, thereby has increased the wasted work of water pump.
D. when carrying out the operating mode switching,, also reduced the energy-efficient performance of system because the coefficient of performance of system in the operating mode equilibrium process is very low.
2, there is freezing possibility in the health hot water heat exchanger
A. the water in tap water cut-off, boiler very little; Hot water can not form under the situation of circulation at boiler and health hot water heat exchanger; Owing to being installed, reason (unit is lower than boiler) makes the dilutional hyponatremia that remains in the health hot water heat exchanger; Then possibly cause to freeze and cause heat exchanger freezing if the unit evaporating temperature is lower than 0 ℃, and unit when heating in the winter time evaporating temperature to be lower than 0 ℃ situation be very common.
B. normal at temperature control signals, and the health hot water circulating pump damages, or water pump forceful electric power loop fault causes that water does not circulate, when the water flow switch protection was lost efficacy, time one long also can freezing health hot water heat exchanger.
3, unit reliability is poor, and maintenance capacity is big, and service life is not long
A. lack effective management, cause unit error protection or damage refrigeration oil and cold-producing medium.
Because unit has three heat exchangers; And unit has only when under any pattern, moving two heat exchangers to participate in circulation; Another heat exchanger is not participated in circulation; Traditional method is that the inlet ductwork of the heat exchanger of not participating in circulating is cut off (through magnetic valve or reversal valve), and the export pipeline of heat exchanger links to each other with the compressor return air pipe, relies on the evaporation that remains in the cold-producing medium in the heat exchanger that cold-producing medium and lubricating oil are taken back compressor.The supply of the cold-producing medium of the heat exchanger that this way owing to cut off does not participate in circulating; The flow velocity of the refrigerant vapour after the remaining cold-producing medium evaporation is to be difficult to lubricating oil is taken back compressor; Thereby cause the compressor oil starvation and lubricate bad; The shortening that problem is lighter the life-span of compressor, the compressor fault protection takes place and report to the police, the serious compressor that causes damages very soon.
B. because operational mode often changes, cause the sudden change of operating mode and pressure of equipment, the movable number of times of switching devices such as various valves also is multiplied, thereby has shortened the service life of parts, and the also corresponding life of product that shortened has reduced reliability of products.
Summary of the invention
The present invention is intended to overcome the deficiency of prior art, and the integrated central air-conditioning of pressing initiatively antifreeze and oil balancing unit in a kind of band is provided.
In order to achieve the above object, technical scheme provided by the invention is:
Press the integrated central air-conditioning of initiatively antifreeze and oil balancing unit in the said band, comprise compressor 1, health hot water heat exchanger 3, outdoor finned heat exchanger 10; Be located at the condensation fan 24 on outdoor finned heat exchanger 10 sides, two-way device for drying and filtering 11, two-way electric expansion valve 12, liquid reservoir 13; Room conditioning heat exchanger 16, gas-liquid separator 17, circulating pump; The level pressure capillary, four-way change-over valve and check valve, between said each parts by pipeline connection;
Said compressor 1 outlet is communicated with four-way change-over valve A2 first interface; Four-way change-over valve A2 second interface is communicated with check valve B7; Check valve B7 is communicated with four-way change-over valve C5 first interface; Four-way change-over valve C5 the 4th interface is communicated with outdoor finned heat exchanger 10 second interfaces, and outdoor finned heat exchanger 10 first interfaces are communicated with two-way device for drying and filtering 11 second interfaces, and two-way device for drying and filtering 11 first interfaces are communicated with two-way electric expansion valve 12 second interfaces; Two-way electric expansion valve 12 first interfaces are communicated with room conditioning heat exchanger 16 second interfaces; Room conditioning heat exchanger 16 first interfaces are communicated with four-way change-over valve C5 second interface, and four-way change-over valve C5 the 3rd outlet is communicated with gas-liquid separator 17 imports, and gas-liquid separator 17 outlets are communicated with compressor 1 import;
Four-way change-over valve A2 the 3rd interface is communicated with gas-liquid separator 17 imports;
Four-way change-over valve A2 the 4th interface is communicated with check valve A6; Check valve A6 is communicated with health hot water heat exchanger 3 first interfaces; Health hot water heat exchanger 3 second interfaces are communicated with four-way change-over valve B4 first interface; Four-way change-over valve B4 second interface is communicated with check valve C8, and check valve C8 is communicated with the outlet of room conditioning heat exchanger 16 second interfaces, level pressure capillary A15 first interface, two-way electric expansion valve 12 first interfaces and liquid reservoir 13;
Four-way change-over valve B4 the 4th interface is communicated with check valve D9, and check valve D9 is communicated with two-way device for drying and filtering 11 second interfaces, level pressure capillary B14 second interface and outdoor finned heat exchanger 10 first interfaces;
Four-way change-over valve B4 the 3rd interface be communicated with gas-liquid separator 17 imports;
Level pressure capillary A15 second interface is communicated with level pressure capillary B14 first interface, and level pressure capillary A15 is communicated with health hot water heat exchanger 3 second interfaces with connecting pipe between the level pressure capillary B14.
Wherein, four-way change-over valve B4 can use two magnetic valves to come its function of equivalence replacement, and the annexation of other each parts does not change, and after two magnetic valve equivalence replacements, the concrete structure that changes part is following:
Four-way change-over valve A2 the 4th interface is communicated with check valve A6; Check valve A6 is communicated with health hot water heat exchanger 3 first interfaces; Health hot water heat exchanger 3 second interfaces are communicated with magnetic valve A20, magnetic valve B21; Magnetic valve A20 is communicated with check valve C8, and check valve C8 is communicated with the outlet of room conditioning heat exchanger 16 second interfaces, level pressure capillary A15 first interface, two-way electric expansion valve 12 first interfaces and liquid reservoir 13;
Magnetic valve B is communicated with check valve D9, and check valve D9 is communicated with two-way device for drying and filtering 11 second interfaces, level pressure capillary B14 second interface and outdoor finned heat exchanger 10 first interfaces.
In addition, said health hot water heat exchanger 3 inlet and outlet pipe lines A22 are provided with health hot water circulating pump 19; Said room conditioning heat exchanger 16 inlet and outlet pipe lines B23 are provided with air-condition freezing water-circulating pump 18.
Below in conjunction with design and operation principle the present invention is described further:
Referring to Fig. 1, said integrated central air-conditioning comprises compressor, outdoor finned heat exchanger, room conditioning heat exchanger; The health hot water heat exchanger, electric expansion valve, four-way change-over valve, check valve; Gas-liquid separator, liquid reservoir, a two-way device for drying and filtering, level pressure capillary; Condensation fan, and, also have sheet metal components such as control system, unit base and shell with the refrigeration pipe that these parts couple together.
Said integrated central air-conditioning adopts 2 capillaries as constant pressure arrangement; And the double oil balancing unit of doing; Also adopt 4 check valves that the pipeline of heat exchanger is linked to each other with other pipeline of refrigeration system in addition; Make the health hot water heat exchanger when unit carries out single refrigeration mode and the operation of single heating mode, be in middle pressure condition all the time; Promptly be in the average pressure of condensing pressure and evaporating pressure, corresponding, the temperature of the cold-producing medium in the health hot water heat exchanger also is the mean temperature of condensation temperature and evaporating temperature basically.Like this; Even the evaporating temperature of unit is-10 ℃, the refrigerant temperature in the health hot water heat exchanger also can reach (condensation temperature only need reach more than 40 ℃) more than 10 ℃ easily, when so just having guaranteed that unit moves under any pattern; The health hot water heat exchanger is in the above freezing of water all the time; Also just reached initiatively antifreeze purpose, and do not need to carry out again extra passive antifreeze, the generation of also thoroughly having stopped the freezing problem of heat exchanger.
Referring to Fig. 1, during air-conditioning system work, control procedure and cold-producing medium flow process are following:
A. single refrigeration mode:
Control procedure: four-way change-over valve A2 dead electricity, four-way change-over valve B4 gets electric, four-way change-over valve C5 dead electricity;
Cold-producing medium flow process: compressor 1 → four-way change-over valve A2 → check valve B7 → four-way change-over valve C5 → outdoor finned heat exchanger 10 → two-way device for drying and filtering 11 → two-way electric expansion valve 12 → room conditioning heat exchanger 16 → four-way change-over valve C5 → gas-liquid separator 17 → compressor 1.
B. single heating mode:
Control procedure: four-way change-over valve A2 dead electricity, four-way change-over valve B4 dead electricity, four-way change-over valve C5 gets;
Cold-producing medium flow process: compressor 1 → four-way change-over valve A2 → check valve B7 → four-way change-over valve C5 → room conditioning heat exchanger 16 → two-way electric expansion valve 12 → two-way device for drying and filtering 11 → outdoor finned heat exchanger 10 → four-way change-over valve C5 → gas-liquid separator 17 → compressor 1.
Defrost operation in single heating mode is with single refrigeration mode.
C. singly heat aqueous mode:
Control procedure: four-way change-over valve A2 gets electric, four-way change-over valve B4 dead electricity, and four-way change-over valve C5 gets;
Cold-producing medium flow process: compressor 1 → four-way change-over valve A2 → check valve A6 → health hot water heat exchanger 3 → four-way change-over valve B4 → check valve C8 → two-way electric expansion valve 12 → two-way device for drying and filtering 11 → outdoor finned heat exchanger 10 → four-way change-over valve C5 → gas-liquid separator 17 → compressor 1.
D. the double aqueous mode that heats freezes:
Control procedure: four-way change-over valve A2 gets electric, four-way change-over valve B4 dead electricity, and four-way change-over valve C5 gets;
Cold-producing medium flow process: compressor 1 → four-way change-over valve A2 → check valve A6 → health hot water heat exchanger 3 → four-way change-over valve B4 → check valve D9 → two-way device for drying and filtering 11 → two-way electric expansion valve 12 → room conditioning heat exchanger 16 → four-way change-over valve C5 → gas-liquid separator 17 → compressor 1.
E. heat the double aqueous mode that heats:
Follow the hot water principle of priority, follow singly heating aqueous mode when heating water, follow single heating mode when air-conditioning heats.
F. the control of condensation fan 24
Fan operation (suspending during defrosting) when fan operation during single refrigeration mode, single heating mode, fan operation when singly heating aqueous mode (suspending during defrosting), freeze double when heating aqueous mode blower fan out of service.
Compared with prior art, beneficial effect of the present invention is embodied in:
Press the integrated central air-conditioning of defroster to adopt 2 capillary level pressure in the band of the present invention; Through parts such as check valves, make unit when single refrigeration mode operation and the operation of single heating mode, the refrigerant temperature in the health hot water heat exchanger is in the mean value of condensation temperature and evaporating temperature all the time; This value is higher than the freezing point of water far away; Make unit from passive antifreeze antifreeze, thoroughly solved antifreeze problem, obviously improved the unit energy-efficient performance to initiatively; Prolong the service life of unit, increased the reliability of unit.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the structural representation of the another kind of embodiment of the present invention.
Among the figure: 1, compressor; 2, four-way change-over valve A; 3, health hot water heat exchanger; 4, four-way change-over valve B; 5, four-way change-over valve C; 6, check valve A; 7, check valve B; 8, check valve C; 9, check valve D; 10, outdoor finned heat exchanger; 11, two-way device for drying and filtering; 12, two-way electric expansion valve; 13, liquid reservoir; 14, level pressure capillary B; 15, level pressure capillary A; 16, room conditioning heat exchanger; 17, gas-liquid separator; 18, air-condition freezing water-circulating pump; 19, health hot water circulating pump; 20, magnetic valve A; 21, magnetic valve B; 22, inlet and outlet pipe lines A; 23, inlet and outlet pipe lines B; 24, condensation fan.
The specific embodiment
As shown in Figure 1, press the integrated central air-conditioning of initiatively antifreeze and oil balancing unit in the said band, comprise compressor 1, health hot water heat exchanger 3; Outdoor finned heat exchanger 10 is located at the other condensation fan 24 of outdoor finned heat exchanger 10, two-way device for drying and filtering 11, two-way electric expansion valve 12; Liquid reservoir 13, room conditioning heat exchanger 16, gas-liquid separator 17, circulating pump; The level pressure capillary, four-way change-over valve and check valve, between said each parts by pipeline connection;
Said compressor 1 outlet is communicated with four-way change-over valve A2 first interface; Four-way change-over valve A2 second interface is communicated with check valve B7; Check valve B7 is communicated with four-way change-over valve C5 first interface; Four-way change-over valve C5 the 4th interface is communicated with outdoor finned heat exchanger 10 second interfaces, and outdoor finned heat exchanger 10 first interfaces are communicated with two-way device for drying and filtering 11 second interfaces, and two-way device for drying and filtering 11 first interfaces are communicated with two-way electric expansion valve 12 second interfaces; Two-way electric expansion valve 12 first interfaces are communicated with room conditioning heat exchanger 16 second interfaces; Room conditioning heat exchanger 16 first interfaces are communicated with four-way change-over valve C5 second interface, and four-way change-over valve C5 the 3rd outlet is communicated with gas-liquid separator 17 imports, and gas-liquid separator 17 outlets are communicated with compressor 1 import;
Said four-way change-over valve A2 the 3rd interface is communicated with gas-liquid separator 17 imports;
Said four-way change-over valve A2 the 4th interface is communicated with check valve A6; Check valve A6 is communicated with health hot water heat exchanger 3 first interfaces; Health hot water heat exchanger 3 second interfaces are communicated with four-way change-over valve B4 first interface; Four-way change-over valve B4 second interface is communicated with check valve C8, and check valve C8 is communicated with the outlet of room conditioning heat exchanger 16 second interfaces, level pressure capillary A15 first interface, two-way electric expansion valve 12 first interfaces and liquid reservoir 13;
Said four-way change-over valve B4 the 4th interface is communicated with check valve D9, and check valve D9 is communicated with two-way device for drying and filtering 11 second interfaces, level pressure capillary B14 second interface and outdoor finned heat exchanger 10 first interfaces;
Said four-way change-over valve B4 the 3rd interface be communicated with gas-liquid separator 17 imports;
Said level pressure capillary A15 second interface is communicated with level pressure capillary B14 first interface, and level pressure capillary A15 is communicated with health hot water heat exchanger 3 second interfaces with connecting pipe between the level pressure capillary B14;
Said health hot water heat exchanger 3 inlet and outlet pipe lines A22 are provided with health hot water circulating pump 19; Said room conditioning heat exchanger 16 inlet and outlet pipe lines B23 are provided with air-condition freezing water-circulating pump 18.
As shown in Figure 2, press the integrated central air-conditioning of initiatively antifreeze and oil balancing unit in the said band, comprise compressor 1, health hot water heat exchanger 3; Outdoor finned heat exchanger 10 is located at the other condensation fan 24 of outdoor finned heat exchanger 10, two-way device for drying and filtering 11, two-way electric expansion valve 12; Liquid reservoir 13, room conditioning heat exchanger 16, gas-liquid separator 17, circulating pump; The level pressure capillary, four-way change-over valve and check valve, between said each parts by pipeline connection;
Said compressor 1 outlet is communicated with four-way change-over valve A2 first interface; Four-way change-over valve A2 second interface is communicated with check valve B7; Check valve B7 is communicated with four-way change-over valve C5 first interface; Four-way change-over valve C5 the 4th interface is communicated with outdoor finned heat exchanger 10 second interfaces, and outdoor finned heat exchanger 10 first interfaces are communicated with two-way device for drying and filtering 11 second interfaces, and two-way device for drying and filtering 11 first interfaces are communicated with two-way electric expansion valve 12 second interfaces; Two-way electric expansion valve 12 first interfaces are communicated with room conditioning heat exchanger 16 second interfaces; Room conditioning heat exchanger 16 first interfaces are communicated with four-way change-over valve C5 second interface, and four-way change-over valve C5 the 3rd outlet is communicated with gas-liquid separator 17 imports, and gas-liquid separator 17 outlets are communicated with compressor 1 import;
Said four-way change-over valve A2 the 3rd interface is communicated with gas-liquid separator 17 imports;
Said four-way change-over valve A2 the 4th interface is communicated with check valve A6; Check valve A6 is communicated with health hot water heat exchanger 3 first interfaces; Health hot water heat exchanger 3 second interfaces are communicated with magnetic valve A20, magnetic valve B21; Magnetic valve A20 is communicated with check valve C8, and check valve C8 is communicated with the outlet of room conditioning heat exchanger 16 second interfaces, level pressure capillary A15 first interface, two-way electric expansion valve 12 first interfaces and liquid reservoir 13;
Said magnetic valve B is communicated with check valve D9, and check valve D9 is communicated with two-way device for drying and filtering 11 second interfaces, level pressure capillary B14 second interface and outdoor finned heat exchanger 10 first interfaces;
Said level pressure capillary A15 second interface is communicated with level pressure capillary B14 first interface, and level pressure capillary A15 is communicated with health hot water heat exchanger 3 second interfaces with connecting pipe between the level pressure capillary B14;
Said health hot water heat exchanger 3 inlet and outlet pipe lines A22 are provided with health hot water circulating pump 19; Said room conditioning heat exchanger 16 inlet and outlet pipe lines B23 are provided with air-condition freezing water-circulating pump 18.
Claims (4)
1. press the integrated central air-conditioning of initiatively antifreeze and oil balancing unit in the band, comprise compressor (1), health hot water heat exchanger (3); Outdoor finned heat exchanger (10) is located at the other condensation fan (24) of outdoor finned heat exchanger (10), two-way device for drying and filtering (11); Two-way electric expansion valve (12), liquid reservoir (13), room conditioning heat exchanger (16); Gas-liquid separator (17), circulating pump, level pressure capillary; Four-way change-over valve and check valve, between said each parts by pipeline connection;
It is characterized in that,
Said compressor (1) outlet is communicated with four-way change-over valve A (2) first interfaces; Four-way change-over valve A (2) second interfaces are communicated with check valve B (7); Check valve B (7) is communicated with four-way change-over valve C (5) first interfaces; Four-way change-over valve C (5) the 4th interface is communicated with outdoor finned heat exchanger (10) second interfaces; Outdoor finned heat exchanger (10) first interfaces are communicated with two-way device for drying and filtering (11) second interfaces; Two-way device for drying and filtering (11) first interfaces are communicated with two-way electric expansion valve (12) second interfaces, and two-way electric expansion valve (12) first interfaces are communicated with room conditioning heat exchanger (16) second interfaces, and room conditioning heat exchanger (16) first interfaces are communicated with four-way change-over valve C (5) second interfaces; Four-way change-over valve C (5) the 3rd outlet is communicated with gas-liquid separator (17) import, and gas-liquid separator (17) outlet is communicated with compressor (1) import;
Said four-way change-over valve A (2) the 3rd interface is communicated with gas-liquid separator (17) import;
Said four-way change-over valve A (2) the 4th interface is communicated with check valve A (6); Check valve A (6) is communicated with health hot water heat exchanger (3) first interfaces; Health hot water heat exchanger (3) second interfaces are communicated with four-way change-over valve B (4) first interfaces; Four-way change-over valve B (4) second interfaces are communicated with check valve C (8), and check valve C (8) is communicated with the outlet of room conditioning heat exchanger (16) second interfaces, level pressure capillary A (15) first interfaces, two-way electric expansion valve (12) first interfaces and liquid reservoir (13);
Said four-way change-over valve B (4) the 4th interface is communicated with check valve D (9), and check valve D (9) is communicated with two-way device for drying and filtering (11) second interfaces, level pressure capillary B (14) second interfaces and outdoor finned heat exchanger (10) first interfaces;
Said four-way change-over valve B (4) the 3rd interface be communicated with gas-liquid separator (17) import;
Said level pressure capillary A (15) second interfaces are communicated with level pressure capillary B (14) first interfaces, and level pressure capillary A (15) is communicated with health hot water heat exchanger (3) second interfaces with connecting pipe between the level pressure capillary B (14).
2. central air-conditioning as claimed in claim 1 is characterized in that, said health hot water heat exchanger (3) inlet and outlet pipe lines A (22) is provided with health hot water circulating pump (19); Said room conditioning heat exchanger (16) inlet and outlet pipe lines B (23) is provided with air-condition freezing water-circulating pump (18).
3. press the integrated central air-conditioning of initiatively antifreeze and oil balancing unit in the band, comprise compressor (1), health hot water heat exchanger (3); Outdoor finned heat exchanger (10) is located at the other condensation fan (24) of outdoor finned heat exchanger (10), two-way device for drying and filtering (11); Two-way electric expansion valve (12), liquid reservoir (13), room conditioning heat exchanger (16); Gas-liquid separator (17), circulating pump, level pressure capillary; Four-way change-over valve, check valve and magnetic valve, between said each parts by pipeline connection;
It is characterized in that,
Said compressor (1) outlet is communicated with four-way change-over valve A (2) first interfaces; Four-way change-over valve A (2) second interfaces are communicated with check valve B (7); Check valve B (7) is communicated with four-way change-over valve C (5) first interfaces; Four-way change-over valve C (5) the 4th interface is communicated with outdoor finned heat exchanger (10) second interfaces; Outdoor finned heat exchanger (10) first interfaces are communicated with two-way device for drying and filtering (11) second interfaces; Two-way device for drying and filtering (11) first interfaces are communicated with two-way electric expansion valve (12) second interfaces, and two-way electric expansion valve (12) first interfaces are communicated with room conditioning heat exchanger (16) second interfaces, and room conditioning heat exchanger (16) first interfaces are communicated with four-way change-over valve C (5) second interfaces; Four-way change-over valve C (5) the 3rd outlet is communicated with gas-liquid separator (17) import, and gas-liquid separator (17) outlet is communicated with compressor (1) import;
Said four-way change-over valve A (2) the 3rd interface is communicated with gas-liquid separator (17) import;
Said four-way change-over valve A (2) the 4th interface is communicated with check valve A (6); Check valve A (6) is communicated with health hot water heat exchanger (3) first interfaces; Health hot water heat exchanger (3) second interfaces are communicated with magnetic valve A (20), magnetic valve B (21); Magnetic valve A (20) is communicated with check valve C (8), and check valve C (8) is communicated with the outlet of room conditioning heat exchanger (16) second interfaces, level pressure capillary A (15) first interfaces, two-way electric expansion valve (12) first interfaces and liquid reservoir (13);
Said magnetic valve B is communicated with check valve D (9), and check valve D (9) is communicated with two-way device for drying and filtering (11) second interfaces, level pressure capillary B (14) second interfaces and outdoor finned heat exchanger (10) first interfaces;
Said level pressure capillary A (15) second interfaces are communicated with level pressure capillary B (14) first interfaces, and level pressure capillary A (15) is communicated with health hot water heat exchanger (3) second interfaces with connecting pipe between the level pressure capillary B (14).
4. central air-conditioning as claimed in claim 3 is characterized in that, said health hot water heat exchanger (3) inlet and outlet pipe lines A (22) is provided with health hot water circulating pump (19); Said room conditioning heat exchanger (16) inlet and outlet pipe lines B (23) is provided with air-condition freezing water-circulating pump (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210333792.5A CN102809236B (en) | 2012-09-11 | 2012-09-11 | Integrated central air conditioner with medium-pressure active freezing protection and oil balance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210333792.5A CN102809236B (en) | 2012-09-11 | 2012-09-11 | Integrated central air conditioner with medium-pressure active freezing protection and oil balance device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102809236A true CN102809236A (en) | 2012-12-05 |
| CN102809236B CN102809236B (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210333792.5A Expired - Fee Related CN102809236B (en) | 2012-09-11 | 2012-09-11 | Integrated central air conditioner with medium-pressure active freezing protection and oil balance device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10197306B2 (en) | 2013-08-14 | 2019-02-05 | Carrier Corporation | Heat pump system, heat pump unit using the same, and method for controlling multiple functional modes thereof |
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| JP2001263848A (en) * | 2000-03-17 | 2001-09-26 | Hitachi Ltd | Air conditioner |
| JP2008082589A (en) * | 2006-09-27 | 2008-04-10 | Hitachi Appliances Inc | Air conditioner |
| CN201463393U (en) * | 2009-05-06 | 2010-05-12 | 特灵空调系统(中国)有限公司 | Cooling-only household air conditioner hot-pump water-heating system |
| KR20100059176A (en) * | 2008-11-26 | 2010-06-04 | 유경윤 | Storage system |
| CN202032788U (en) * | 2011-04-05 | 2011-11-09 | Tcl空调器(中山)有限公司 | Air conditioner hot water machine |
| CN202928189U (en) * | 2012-09-11 | 2013-05-08 | 王德元 | Integrated central air-conditioning with medium voltage initiative anti-freezing device |
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| JP2001263848A (en) * | 2000-03-17 | 2001-09-26 | Hitachi Ltd | Air conditioner |
| JP2008082589A (en) * | 2006-09-27 | 2008-04-10 | Hitachi Appliances Inc | Air conditioner |
| KR20100059176A (en) * | 2008-11-26 | 2010-06-04 | 유경윤 | Storage system |
| CN201463393U (en) * | 2009-05-06 | 2010-05-12 | 特灵空调系统(中国)有限公司 | Cooling-only household air conditioner hot-pump water-heating system |
| CN202032788U (en) * | 2011-04-05 | 2011-11-09 | Tcl空调器(中山)有限公司 | Air conditioner hot water machine |
| CN202928189U (en) * | 2012-09-11 | 2013-05-08 | 王德元 | Integrated central air-conditioning with medium voltage initiative anti-freezing device |
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| US10197306B2 (en) | 2013-08-14 | 2019-02-05 | Carrier Corporation | Heat pump system, heat pump unit using the same, and method for controlling multiple functional modes thereof |
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|---|---|
| CN102809236B (en) | 2014-11-26 |
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