CN203215876U - Air conditioner and outdoor unit thereof - Google Patents
Air conditioner and outdoor unit thereof Download PDFInfo
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- CN203215876U CN203215876U CN 201320120127 CN201320120127U CN203215876U CN 203215876 U CN203215876 U CN 203215876U CN 201320120127 CN201320120127 CN 201320120127 CN 201320120127 U CN201320120127 U CN 201320120127U CN 203215876 U CN203215876 U CN 203215876U
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Abstract
The utility model provides an air conditioner and an outdoor unit thereof. The outdoor unit of the air conditioner comprises a compressor, an outdoor heat exchanger, a first pipeline and an outdoor electronic expansion valve, wherein the first pipeline is used for connecting an indoor unit with the outdoor heat exchanger, and the outdoor electronic expansion valve is connected with the first pipeline in series; the compressor is a first double-rotor compressor which is provided with a first auxiliary air suction port, a first main air suction port and a first exhaust port, and the first main air suction port and the first exhaust port are respectively connected with a four-way valve of the air conditioner; the outdoor unit also comprises a middle-pressure liquid storage tank positioned between the indoor unit and the outdoor electronic expansion valve, wherein the middle-pressure liquid storage pipe is connected to the first pipeline in series and is provided with an air outlet, an inlet and a liquid outlet, the air outlet is connected with the first auxiliary air suction port through a first auxiliary pipeline, and the inlet and the liquid outlet are respectively connected with the first pipeline. The outdoor unit of the air conditioner has the advantages that the low-temperature heating capacity of the whole air conditioner is improved by additionally arranging the middle-pressure liquid storage tank and using the first double-rotor compressor.
Description
Technical field
The utility model relates to air-conditioning technical field, more particularly, relates to a kind of air-conditioner and off-premises station thereof.
Background technology
Along with the development of air-conditioning technical, air-conditioner is widely used gradually.For air-conditioner, the quality of compressor directly influences the performance performance of air-conditioner.Because the limitation of compressor itself, the temperature range of the normal operation of air-conditioning system is limited, has the not good problem of low-temperature heating ability.In the process of heating, decline along with environment temperature, the evaporating temperature of cold-producing medium descends, the specific volume of suction side cold-producing medium constantly increases, because the compressor air suction constancy of volume causes the inspiratory capacity of compressor to descend, the refrigerant amount of feasible flow through outdoor heat exchanger and indoor heat exchanger reduces, the heating capacity of air-conditioner descends thereupon, is prone to the not good problem of low-temperature heating.
In addition, heat in the process, the inspiratory capacity of the compressor that moves in the low temperature environment descends, and more easily causes the excessive discharge temperature of compressor, makes that the reliability of compressor is lower.
In addition, when high temperature freezed, also can there be the not good problem of refrigerating capacity in air-conditioner.In process of refrigerastion, along with environment temperature rises, heat transfer temperature difference reduces, and the heat exchange of outdoor heat exchanger is difficulty, must improve refrigerant flow by raising frequency and improve heat exchange, but raising frequency can cause excessive discharge temperature, causes the reliability of compressor lower.
In sum, how improving the low-temperature heating ability of air-conditioner, is present those skilled in the art's problem demanding prompt solution.
The utility model content
The purpose of this utility model provides a kind of off-premises station of air-conditioner, to improve the low-temperature heating ability of air-conditioner.Another purpose of the present utility model provides a kind of air-conditioner.
To achieve these goals, the utility model provides following technical scheme:
A kind of off-premises station of air-conditioner comprises: compressor, and outdoor heat exchanger, first pipeline for connecting indoor set and described outdoor heat exchanger is serially connected with the outdoor electric expansion valve on described first pipeline; Wherein, described compressor is first two-spool compressor, and described first two-spool compressor has: the first auxiliary air entry, the first main air entry and first exhaust outlet that link to each other with the cross valve of described air-conditioner respectively;
Described off-premises station also comprises: the middle pressure fluid reservoir between described indoor set and described outdoor electric expansion valve, press fluid reservoir to be serially connected with on described first pipeline in described, and press fluid reservoir to have in described: the gas outlet that links to each other by first auxiliary piping and the described first auxiliary air entry, import and the liquid outlet that links to each other with described first pipeline respectively.
Preferably, the off-premises station of above-mentioned air-conditioner, also comprise second two-spool compressor in parallel with described first two-spool compressor, described second two-spool compressor has: the second auxiliary air entry that links to each other with described gas outlet by second auxiliary piping, the second main air entry and second exhaust outlet that links to each other with described cross valve respectively.
Preferably, the off-premises station of above-mentioned air-conditioner also comprises:
Be serially connected with first aeration valve on described first auxiliary piping;
Be serially connected with second aeration valve on described second auxiliary piping;
Detect outdoor temperature, and send the temperature sensor of temperature detection signal;
Detect first running frequency of described first two-spool compressor, and send the first sensor of first detection signal;
Detect second running frequency of described second two-spool compressor, and send second sensor of second detection signal;
Link to each other with described temperature sensor, described first sensor and described first aeration valve respectively, receive described temperature detection signal and described first detection signal, in the heating operation, when outdoor temperature less than heating preset temperature, and described first running frequency is opened first controller of described first aeration valve when heating predeterminated frequency;
Link to each other with described temperature sensor, described second sensor and described second aeration valve respectively, receive described temperature detection signal and described second detection signal, in the heating operation, when outdoor temperature less than heating preset temperature, and described second running frequency is opened second controller of described second aeration valve when heating predeterminated frequency;
Link to each other with described temperature sensor, described first sensor and described first aeration valve respectively, receive described temperature detection signal and described first detection signal, in the refrigerating operaton, when outdoor temperature greater than the refrigeration preset temperature, and described first running frequency during predeterminated frequency, is opened the 3rd controller of described first aeration valve greater than refrigeration;
Link to each other with described temperature sensor, described second sensor and described second aeration valve respectively, receive described temperature detection signal and described second detection signal, in the refrigerating operaton, when outdoor temperature greater than the refrigeration preset temperature, and described second running frequency during predeterminated frequency, is opened the 4th controller of described second aeration valve greater than refrigeration.
Preferably, in the off-premises station of above-mentioned air-conditioner, described first controller, described second controller, described the 3rd controller and described the 4th controller are integrated on the control mainboard of off-premises station of described air-conditioner.
Preferably, the off-premises station of above-mentioned air-conditioner also comprises: be arranged at described gas outlet, and detect described middle pressure sensor of pressing the fluid reservoir internal pressure.
The off-premises station of the air-conditioner that the utility model provides, by pressing fluid reservoir in setting up and selecting first two-spool compressor for use, heat in the process, liquid refrigerant cold excessively in the middle pressure fluid reservoir is fed outdoor heat exchanger, thereby reduced the enthalpy of the cold-producing medium of inlet chamber external heat exchanger, increase the refrigerant temperature of inlet chamber external heat exchanger and the temperature difference of outdoor temperature, thereby improved the evaporation capacity of liquid refrigerant, and then improved the inspiratory capacity of the first main air entry of first two-spool compressor; Simultaneously, the middle interior gaseous refrigerant of fluid reservoir of pressing enters first two-spool compressor from the first auxiliary air entry, and mix with gaseous refrigerant after the gaseous refrigerant that enters first two-spool compressor through first primary air inlet is compressed to certain pressure, further first two-spool compressor is discharged from first exhaust outlet, the further like this air inflow that increases by first two-spool compressor in the compression back.So the off-premises station of the air-conditioner that the utility model embodiment provides has improved the air inflow of first two-spool compressor in the low-temperature heating process, and then improved the low-temperature heating ability of whole air-conditioner.
Off-premises station based on the above-mentioned air-conditioner that provides, the utility model also provides a kind of air-conditioner, this air-conditioner comprises: indoor set and the off-premises station that links to each other with described indoor set, described indoor set comprise indoor heat exchanger and the indoor electric expansion valve that links to each other with described indoor heat exchanger; Wherein, described off-premises station is the off-premises station of above-mentioned any described air-conditioner; Wherein, the middle pressure fluid reservoir of described off-premises station is between described indoor electric expansion valve and described outdoor electric expansion valve.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the off-premises station of the air-conditioner that Fig. 1 provides for the utility model embodiment;
The enthalpy of air-conditioner cold-producing medium in the process of heating that the off-premises station of the air-conditioner that Fig. 2 provides for the utility model embodiment constitutes and pressure concern schematic diagram;
The enthalpy of air-conditioner cold-producing medium in process of refrigerastion that the off-premises station of the air-conditioner that Fig. 3 provides for the utility model embodiment constitutes and pressure concern schematic diagram.
Among last Fig. 1-3:
The specific embodiment
The utility model embodiment provides a kind of off-premises station of air-conditioner, has improved the low-temperature heating ability of air-conditioner.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to accompanying drawing 1-3, the structural representation of the off-premises station of the air-conditioner that Fig. 1 provides for the utility model embodiment; The enthalpy of air-conditioner cold-producing medium in the process of heating that the off-premises station of the air-conditioner that Fig. 2 provides for the utility model embodiment constitutes and pressure concern schematic diagram; The enthalpy of air-conditioner cold-producing medium in process of refrigerastion that the off-premises station of the air-conditioner that Fig. 3 provides for the utility model embodiment constitutes and pressure concern schematic diagram.Wherein, among Fig. 1, be the off-premises station of air-conditioner in the frame of broken lines.The abscissa of Fig. 2 and Fig. 3 is respectively the enthalpy h of cold-producing medium, and ordinate is respectively the common logarithm LgP of refrigerant pressure.
The off-premises station of the air-conditioner that the utility model embodiment provides comprises: compressor, and outdoor heat exchanger 13, first pipeline 17 for connecting indoor set and outdoor heat exchanger 13 is serially connected with the outdoor electric expansion valve 16 on first pipeline 17; Wherein, compressor is that first two-spool compressor, 111, the first two-spool compressors 111 have: the first auxiliary air entry, the first main air entry and first exhaust outlet that link to each other with the cross valve 11 of air-conditioner respectively; Off-premises station also comprises: the middle pressure fluid reservoir 19 between indoor set and outdoor electric expansion valve 16, in press fluid reservoir 19 to be serially connected with on first pipeline 17, and middle pressure fluid reservoir 19 has: the gas outlet that links to each other by first auxiliary piping and the first auxiliary air entry, import and the liquid outlet that links to each other with first pipeline 17 respectively.
At present, indoor set mainly comprises indoor heat exchanger 21 and the indoor electric expansion valve 22 that links to each other with indoor heat exchanger 21.In the off-premises station of the air-conditioner that the utility model embodiment provides, middle pressure fluid reservoir 19 is between indoor set and outdoor electric expansion valve 16, and by the structure of indoor set, the middle fluid reservoir 19 of pressing is between indoor electric expansion valve 22 and outdoor electric expansion valve 16 as can be known.Need to arrange gas-liquid separator between the suction end of compressor and the cross valve, need to arrange oil eliminator between the exhaust end of compressor and the cross valve, so be provided with gas-liquid separator 112 between the first main air entry of first two-spool compressor 111 and the cross valve 11, be provided with oil eliminator 12 between first exhaust outlet of first two-spool compressor 111 and the cross valve 11, namely first air entry of first two-spool compressor 111 links to each other with cross valve 11 by gas-liquid separator, and first exhaust outlet of first two-spool compressor 111 links to each other with cross valve 11 by oil eliminator 12.Gas-liquid separator 112 and oil eliminator 12 be set to prior art, this paper repeats no more.
In the off-premises station of the air-conditioner that above-described embodiment provides, middle pressure fluid reservoir 19 has the flash distillation function, presses the liquid refrigerant in the fluid reservoir 19 that flash distillation can take place in namely flowing into; Simultaneously, middle pressure fluid reservoir 19 can also storage area cold-producing medium, particularly high pressure drop condition, and (outer machine is low to be put) flows to the liquid refrigerant of outdoor heat exchanger 13 from long tube connector when shutting down down.
The off-premises station of the air-conditioner that the utility model embodiment provides is installed itself and indoor set, the whole air-conditioner of formation, and as illustrated in fig. 1 and 2, the process of heating of whole air-conditioner is:
The gaseous refrigerant (state point 23) of the HTHP that comes out from first two-spool compressor 111 enters oil eliminator 12, the gaseous refrigerant of separating enters indoor heat exchanger 21 and condensation through cross valve 11, become the liquid refrigerant (state point 24) of cryogenic high pressure after the condensation, the liquid refrigerant of cryogenic high pressure becomes the cold-producing medium two-phase mixture (state point 24 ') of pressing in the low temperature through indoor electric expansion valve 22 throttling step-downs, during entering, the cold-producing medium two-phase mixture of pressing in the low temperature presses fluid reservoir 19, the middle gaseous refrigerant (state point 26) of shwoots in the fluid reservoir 19 of pressing is got back to first two-spool compressor 111 through first subsidiary loop and the first auxiliary air entry, and this loop is bypass; The continuous shwoot of cold-producing medium causes the liquid refrigerant in the flash evaporation 19 cold excessively, cross cold liquid refrigerant (state point 25) through outdoor electric expansion valve 16 throttling step-downs, be down to evaporating pressure (state point 25 ') back inlet chamber external heat exchanger 13 and heat absorption evaporation, the gaseous refrigerant (state point 21) of the high-temperature low-pressure after the heat absorption evaporation is got back to first two-spool compressor 111 through the first main air entry, and this loop is main road; After being compressed to certain pressure (state point 22), mixes with the gaseous refrigerant that flows into first two-spool compressor 111 through bypass the gaseous refrigerant that main road flows into first two-spool compressor 111, mixed cold-producing medium (state point 22 ') is further compressed, discharge first two-spool compressor 111 from first exhaust outlet then, formation heats circulation.
The off-premises station of the air-conditioner that the utility model embodiment provides is installed itself and indoor set, the whole air-conditioner of formation, and as shown in figures 1 and 3, the process of refrigerastion of whole air-conditioner is:
During refrigerating operaton, the gaseous refrigerant (state point 13) of the HTHP that comes out from first two-spool compressor 111 enters oil eliminator 12, the gaseous refrigerant of separating is through cross valve 11 inlet chamber external heat exchanger 13 and condensations, become the liquid refrigerant (state point 14) of cryogenic high pressure after the condensation, the liquid refrigerant of cryogenic high pressure becomes the cold-producing medium two-phase mixture (state point 14 ') of pressing in the low temperature through outdoor electric expansion valve 16 throttling step-downs, during entering, the cold-producing medium two-phase mixture of pressing in the low temperature presses fluid reservoir 19, the middle fluid reservoir 19 interior saturated gaseous refrigerants of middle pressure (state point 16) of pressing are got back to first two-spool compressor 111 through first subsidiary loop and the first auxiliary air entry, and this loop is bypass; The continuous shwoot of cold-producing medium causes the liquid refrigerant in the flash evaporation 19 cold excessively, cross cold liquid refrigerant (state point 15) through the throttling again of indoor electric expansion valve 22, become the cold-producing medium two-phase mixture (state point 15 ') of low-temp low-pressure, the cold-producing medium two-phase mixture of low-temp low-pressure enters indoor heat exchanger 21 and evaporation, the gaseous refrigerant of the high-temperature low-pressure that becomes after the evaporation (state point 11) is got back to first two-spool compressor 111 through the first main air entry, and this loop is main road; In first two-spool compressor, 111 inside, after the cold-producing medium of high-temperature low-pressure is compressed to certain pressure (state point 12), with return from bypass the saturated gaseous refrigerant of pressure mix, mixed cold-producing medium (state point 12) is further compressed, discharge first two-spool compressor 111 from first exhaust outlet then, constitute kind of refrigeration cycle.
The off-premises station of the air-conditioner that the utility model embodiment provides, by pressing fluid reservoir 19 in setting up and selecting first two-spool compressor 111 for use, heat in the process, liquid refrigerant cold excessively in the middle pressure fluid reservoir 19 is fed outdoor heat exchanger 13, thereby reduced the enthalpy of the cold-producing medium of inlet chamber external heat exchanger 13, the refrigerant temperature of inlet chamber external heat exchanger 13 and the temperature difference of outdoor temperature have been increased, thereby improved the evaporation capacity of liquid refrigerant, and then improved the inspiratory capacity of the first main air entry of first two-spool compressor 111; Simultaneously, the middle fluid reservoir 19 interior gaseous refrigerants of pressing enter first two-spool compressor 111 from the first auxiliary air entry, and mix with gaseous refrigerant after the gaseous refrigerant that enters first two-spool compressor 111 through first primary air inlet is compressed to certain pressure, further first two-spool compressor 111 is discharged from first exhaust outlet, the further like this air inflow that increases by first two-spool compressor 111 in the compression back.So the off-premises station of the air-conditioner that the utility model embodiment provides has improved the air inflow of first two-spool compressor 111 in the low-temperature heating process, and then improved the low-temperature heating ability of whole air-conditioner.
Simultaneously, the off-premises station of the air-conditioner that the utility model embodiment provides, in the low-temperature heating process, improved the air inflow of first two-spool compressor 111, thereby reduced the delivery temperature of first two-spool compressor 111, avoid the excessive discharge temperature of first two-spool compressor 111, improved the reliability of first two-spool compressor 111.
Simultaneously, the off-premises station of the air-conditioner that the utility model embodiment provides, by pressing fluid reservoir 19 in setting up and selecting first two-spool compressor 111 for use, in the process of refrigerastion, liquid refrigerant cold excessively in the middle pressure fluid reservoir 19 is fed indoor heat exchanger 21, thereby reduced the enthalpy of the cold-producing medium that enters indoor heat exchanger 21, the refrigerant temperature that enters indoor heat exchanger 21 and the temperature difference of indoor temperature have been increased, thereby improved caloric receptivity and the evaporation capacity of liquid refrigerant, thereby improved the inspiratory capacity of the first main air entry of first two-spool compressor 111 and the high temperature refrigerating capacity of whole air-conditioner; Simultaneously, the middle fluid reservoir 19 interior gaseous refrigerants of pressing enter first two-spool compressor 111 from the first auxiliary air entry, and mix with gaseous refrigerant after the gaseous refrigerant that enters first two-spool compressor 111 through first primary air inlet is compressed to certain pressure, further first two-spool compressor 111 is discharged from first exhaust outlet, the further like this air inflow that increases by first two-spool compressor 111 in the compression back.So the off-premises station of the air-conditioner that the utility model embodiment provides has improved the high temperature refrigerating capacity of whole air-conditioner.
In the off-premises station of the air-conditioner that above-described embodiment provides, middle pressure fluid reservoir 19 inside are middle pressure, because the refrigerant pressure of pressure fluid reservoir 19 is between evaporating pressure and condensing pressure in entering.
In order further to optimize technique scheme, the off-premises station of the air-conditioner that above-described embodiment provides, also comprise: second two-spool compressor 14, the second two-spool compressors 14 in parallel with first two-spool compressor 111 have: the second auxiliary air entry that links to each other with the gas outlet by second auxiliary piping, the second main air entry and second exhaust outlet that links to each other with described cross valve 11 respectively.Adopt the two-spool compressor of two parallel connections, compare with two-spool compressor of employing, the running frequency of the two-spool compressor of two parallel connections is lower than the running frequency of a two-spool compressor, thereby improved the performance of air-conditioner in the medium and low frequency section, improved the IPLV(integrated part load value of the off-premises station of whole air-conditioner, and then improved the efficiency of whole air-conditioner comprehensive part load performance coefficient).
Usually, need to arrange gas-liquid separator between the suction end of compressor and the cross valve, need to arrange oil eliminator between the exhaust end of compressor and the cross valve, so in the off-premises station of the air-conditioner that above-described embodiment provides, the second main air entry of second two-spool compressor 14 links to each other with cross valve 11 by gas-liquid separator 112, and second exhaust outlet of second two-spool compressor 14 links to each other with cross valve 11 by oil eliminator 12.
In the off-premises station of the air-conditioner that the utility model embodiment provides, when indoor refrigeration duty (or thermic load) when demand acquires a certain degree, open first two- spool compressor 111 and 14 operations of second two-spool compressor simultaneously, along with reducing gradually of refrigeration duty (or thermic load), the operation of two-spool compressor is enough to satisfy the demands and efficiency when higher, then opens 111 operations of first two-spool compressor or opens 14 operations of second two-spool compressor.
To first two- spool compressor 111 and 14 tonifying Qi of second two-spool compressor, the off-premises station of the air-conditioner that above-described embodiment provides also comprises: be serially connected with first aeration valve 18 on first auxiliary piping for the ease of control; Be serially connected with second aeration valve 15 on second auxiliary piping; Detect outdoor temperature, and send the temperature sensor of temperature detection signal; Detect first running frequency of first two-spool compressor 111, and send the first sensor of first detection signal; Detect second running frequency of second two-spool compressor 14, and send second sensor of second detection signal; Link to each other with temperature sensor, first sensor and first aeration valve 18 respectively, receive temperature detection signal and first detection signal, in the heating operation, when outdoor temperature less than heating preset temperature, and first running frequency is opened first controller of first aeration valve 18 when heating predeterminated frequency; Link to each other with temperature sensor, second sensor and second aeration valve 15 respectively, receive temperature detection signal and second detection signal, in the heating operation, when outdoor temperature less than heating preset temperature, and second running frequency is opened second controller of second aeration valve 15 when heating predeterminated frequency; Link to each other with temperature sensor, first sensor and first aeration valve 18 respectively, receive temperature detection signal and first detection signal, in the refrigerating operaton, when outdoor temperature greater than the refrigeration preset temperature, and first running frequency during predeterminated frequency, is opened the 3rd controller of first aeration valve 18 greater than refrigeration; Link to each other with temperature sensor, second sensor and second aeration valve 15 respectively, receive temperature detection signal and second detection signal, in the refrigerating operaton, when outdoor temperature greater than the refrigeration preset temperature, and second running frequency during predeterminated frequency, is opened the 4th controller of second aeration valve 15 greater than refrigeration.
The off-premises station of the air-conditioner that above-described embodiment provides, by controlling the unlatching of first aeration valve 18 and second aeration valve 15, control first two-spool compressor 111 and second two-spool compressor 14 are carried out tonifying Qi, when not needing tonifying Qi, can close first aeration valve 18 and second aeration valve 15, thereby made things convenient for the control of tonifying Qi, thereby further improved the efficiency of air-conditioner.Preferably, controller calculates required air compensation, by the aperture of the outer electromagnetism expansion valve 16 of conditioning chamber or the aperture of indoor electromagnetic expanding valve 22, regulates air compensation.When the required air compensation of air-conditioner is big, then turn the aperture of outdoor electromagnetic expanding valve 16 or the aperture of indoor electromagnetic expanding valve 22 down; The required air compensation of air-conditioner hour is then transferred the aperture of big outdoor electromagnetic expanding valve 16 or the aperture of indoor electromagnetic expanding valve 22.Concrete, heat in the process, regulate air compensation by the aperture of electromagnetic expanding valve in the conditioning chamber 22; In the process of refrigerastion, regulate air compensation by the aperture of the outer electromagnetism expansion valve 16 of conditioning chamber.
In the off-premises station of the air-conditioner that above-described embodiment provides, first controller, second controller, the 3rd controller and the 4th controller can be integrated arbitrarily.For the ease of installing and making, preferentially to select, first controller, second controller, the 3rd controller and the 4th controller are integrated in the control mainboard of the off-premises station of air-conditioner.
Preferably, the off-premises station of the air-conditioner that above-described embodiment provides also comprises being arranged at the gas outlet, and presses the pressure sensor 110 of fluid reservoir 19 internal pressures in detecting.Like this, be convenient to know middle pressure of pressing gaseous refrigerants in the fluid reservoir 19.
The off-premises station of the air-conditioner that provides based on above-described embodiment, the utility model embodiment also provides a kind of air-conditioner, this air-conditioner comprises: indoor set and the off-premises station that links to each other with indoor set, indoor set comprise indoor heat exchanger 21 and the indoor electric expansion valve 22 that links to each other with indoor heat exchanger 21; Off-premises station is the off-premises station of the described air-conditioner of above-described embodiment; Wherein, the middle pressure fluid reservoir 19 of off-premises station is between indoor electric expansion valve 22 and outdoor electric expansion valve 16.
Because the off-premises station of the air-conditioner that above-described embodiment provides has above-mentioned technique effect, the air-conditioner that the utility model embodiment provides has the off-premises station of the air-conditioner that above-described embodiment provides, then the air-conditioner that provides of the utility model embodiment also has corresponding technique effect, and this paper repeats no more.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. the off-premises station of an air-conditioner comprises: compressor, and outdoor heat exchanger is used for connecting first pipeline of indoor set and described outdoor heat exchanger, is serially connected with the outdoor electric expansion valve on described first pipeline; It is characterized in that,
Described compressor is first two-spool compressor, and described first two-spool compressor has: the first auxiliary air entry, the first main air entry and first exhaust outlet that link to each other with the cross valve of described air-conditioner respectively;
Described off-premises station also comprises: the middle pressure fluid reservoir between described indoor set and described outdoor electric expansion valve, press fluid reservoir to be serially connected with on described first pipeline in described, and press fluid reservoir to have in described: the gas outlet that links to each other by first auxiliary piping and the described first auxiliary air entry, import and the liquid outlet that links to each other with described first pipeline respectively.
2. the off-premises station of air-conditioner according to claim 1, it is characterized in that, also comprise second two-spool compressor in parallel with described first two-spool compressor, described second two-spool compressor has: the second auxiliary air entry that links to each other with described gas outlet by second auxiliary piping, the second main air entry and second exhaust outlet that links to each other with described cross valve respectively.
3. the off-premises station of air-conditioner according to claim 2 is characterized in that, also comprises:
Be serially connected with first aeration valve on described first auxiliary piping;
Be serially connected with second aeration valve on described second auxiliary piping;
Detect outdoor temperature, and send the temperature sensor of temperature detection signal;
Detect first running frequency of described first two-spool compressor, and send the first sensor of first detection signal;
Detect second running frequency of described second two-spool compressor, and send second sensor of second detection signal;
Link to each other with described temperature sensor, described first sensor and described first aeration valve respectively, receive described temperature detection signal and described first detection signal, in the heating operation, when outdoor temperature less than heating preset temperature, and described first running frequency is opened first controller of described first aeration valve when heating predeterminated frequency;
Link to each other with described temperature sensor, described second sensor and described second aeration valve respectively, receive described temperature detection signal and described second detection signal, in the heating operation, when outdoor temperature less than heating preset temperature, and described second running frequency is opened second controller of described second aeration valve when heating predeterminated frequency;
Link to each other with described temperature sensor, described first sensor and described first aeration valve respectively, receive described temperature detection signal and described first detection signal, in the refrigerating operaton, when outdoor temperature greater than the refrigeration preset temperature, and described first running frequency during predeterminated frequency, is opened the 3rd controller of described first aeration valve greater than refrigeration;
Link to each other with described temperature sensor, described second sensor and described second aeration valve respectively, receive described temperature detection signal and described second detection signal, in the refrigerating operaton, when outdoor temperature greater than the refrigeration preset temperature, and described second running frequency during predeterminated frequency, is opened the 4th controller of described second aeration valve greater than refrigeration.
4. the off-premises station of air-conditioner according to claim 3 is characterized in that, described first controller, described second controller, described the 3rd controller and described the 4th controller are integrated on the control mainboard of off-premises station of described air-conditioner.
5. according to the off-premises station of any described air-conditioner among the claim 1-4, it is characterized in that, also comprise: be arranged at described gas outlet, and detect described middle pressure sensor of pressing the fluid reservoir internal pressure.
6. air-conditioner, comprising: indoor set and the off-premises station that links to each other with described indoor set, described indoor set comprise indoor heat exchanger and the indoor electric expansion valve that links to each other with described indoor heat exchanger; It is characterized in that described off-premises station is the off-premises station as any described air-conditioner among the claim 1-5; Wherein, the middle pressure fluid reservoir of described off-premises station is between described indoor electric expansion valve and described outdoor electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120127 CN203215876U (en) | 2013-03-15 | 2013-03-15 | Air conditioner and outdoor unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120127 CN203215876U (en) | 2013-03-15 | 2013-03-15 | Air conditioner and outdoor unit thereof |
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| CN203215876U true CN203215876U (en) | 2013-09-25 |
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| CN 201320120127 Expired - Lifetime CN203215876U (en) | 2013-03-15 | 2013-03-15 | Air conditioner and outdoor unit thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954067A (en) * | 2014-04-15 | 2014-07-30 | 珠海格力电器股份有限公司 | Refrigerating device |
| CN104048366A (en) * | 2013-03-15 | 2014-09-17 | 珠海格力电器股份有限公司 | Air conditioner, outdoor unit of air conditioner, heating air supplementing method and refrigeration air supplementing method |
| CN108518861A (en) * | 2018-03-05 | 2018-09-11 | 珠海格力电器股份有限公司 | Heat pump water heater system |
-
2013
- 2013-03-15 CN CN 201320120127 patent/CN203215876U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048366A (en) * | 2013-03-15 | 2014-09-17 | 珠海格力电器股份有限公司 | Air conditioner, outdoor unit of air conditioner, heating air supplementing method and refrigeration air supplementing method |
| CN104048366B (en) * | 2013-03-15 | 2017-02-08 | 珠海格力电器股份有限公司 | Air conditioner, outdoor unit of air conditioner, heating air supplementing method and refrigeration air supplementing method |
| CN103954067A (en) * | 2014-04-15 | 2014-07-30 | 珠海格力电器股份有限公司 | Refrigerating device |
| CN103954067B (en) * | 2014-04-15 | 2016-06-08 | 珠海格力电器股份有限公司 | Refrigeration plant |
| CN108518861A (en) * | 2018-03-05 | 2018-09-11 | 珠海格力电器股份有限公司 | Heat pump water heater system |
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