CN106016613B - Energy-saving air conditioning system - Google Patents
Energy-saving air conditioning system Download PDFInfo
- Publication number
- CN106016613B CN106016613B CN201610383038.0A CN201610383038A CN106016613B CN 106016613 B CN106016613 B CN 106016613B CN 201610383038 A CN201610383038 A CN 201610383038A CN 106016613 B CN106016613 B CN 106016613B
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- communicated
- port
- valve
- way
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Abstract
The invention discloses an energy-saving air conditioning system, which comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger and a three-way flow guide piece, wherein the three-way flow guide piece controls a refrigerant to enter through two inlets, then to be mixed in a mixing chamber, and to flow out through an outlet; the outlet of the three-way flow guide piece is communicated with one port of the outdoor heat exchanger so that the refrigerant flowing out of the three-way flow guide piece flows into the outdoor heat exchanger; one inlet of the three-way flow guide piece is communicated with the exhaust port of the compressor; the other inlet of the three-way flow guide piece is communicated with one port of the indoor heat exchanger so that the three-way flow guide piece receives the refrigerant flowing out of the indoor heat exchanger. According to the invention, the high-temperature refrigerant discharged by the compressor and the low-temperature refrigerant discharged by the indoor heat exchanger are mixed in the three-way flow guide piece and then flow into the outdoor heat exchanger, so that the temperature of the refrigerant at the inlet of the outdoor heat exchanger can be reduced when the air conditioner is used for refrigerating, the temperature of the refrigerant at the inlet of the outdoor heat exchanger can be increased when the air conditioner is used for heating, the heat exchange loss of the outdoor heat exchanger is reduced, and the electric energy is saved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an energy-saving air conditioning system.
Background
Although air conditioners are already popular at present, many consumers still consider that the air conditioners consume large power, and when the difference between the ambient temperature and the comfortable temperature required by users is not too large, the users generally do not turn on the air conditioners in order to save electric energy. When the difference between the ambient temperature and the comfortable temperature required by the user is too large to be endured by the user, the user can turn on the air conditioner. The existing air conditioning system has the defect of high power consumption.
Disclosure of Invention
The invention mainly aims to provide an energy-saving air conditioning system, aiming at reducing the power consumption of the air conditioning system.
The invention provides an energy-saving air-conditioning system, which comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger and a three-way flow guide piece, wherein the three-way flow guide piece comprises two inlets, a mixing chamber communicated with the two inlets and an outlet communicated with the mixing chamber, and controls a refrigerant to enter through the two inlets, then to be mixed in the mixing chamber and to flow out through the outlet; an outlet of the three-way flow guide piece is communicated with one port of the outdoor heat exchanger, so that the refrigerant flowing out of the three-way flow guide piece flows into the outdoor heat exchanger; an inlet of the three-way flow guide piece is communicated with an exhaust port of the compressor; and the other inlet of the three-way flow guide piece is communicated with one port of the indoor heat exchanger, so that the three-way flow guide piece receives the refrigerant flowing out of the indoor heat exchanger.
Preferably, the energy-saving air conditioning system further includes a refrigerant flow control valve, an exhaust port of the compressor is communicated with a first inlet of the three-way flow guide member, an outlet of the three-way flow guide member is communicated with a first port of the outdoor heat exchanger, a second port of the outdoor heat exchanger is communicated with a first port of the indoor heat exchanger, a second port of the indoor heat exchanger is communicated with a return air port of the compressor, and the second port of the indoor heat exchanger is further communicated with a second inlet of the three-way flow guide member via the refrigerant flow control valve.
Preferably, the energy-saving air conditioning system further comprises a controller, a first four-way valve and a first switch valve; the first end of the first four-way valve is communicated with an exhaust port of the compressor, the second end of the first four-way valve is communicated with a first inlet of the three-way flow guide piece, the third end of the first four-way valve is communicated with a return air port of the compressor, and the fourth end of the first four-way valve is communicated with a second port of the indoor heat exchanger; the first switch valve is communicated between the second end of the first four-way valve and the first port of the outdoor heat exchanger; the controller is used for controlling the first switch valve to be cut off, the first end and the second end of the first four-way valve to be connected and the third end and the fourth end of the first four-way valve to be connected when the air conditioner is in a refrigeration mode.
Preferably, the controller is further configured to control the first switch valve to be turned on, the refrigerant flow control valve to be turned off, the first end and the fourth end of the first four-way valve to be turned on, and the second end and the third end of the first four-way valve to be turned on when the air conditioner is in a heating mode.
Preferably, the energy-saving air conditioning system further comprises a controller, a second four-way valve, a second switch valve, a third switch valve, a fourth switch valve and a fifth switch valve; the first end of the second four-way valve is communicated with an exhaust port of the compressor, the second end of the second four-way valve is communicated with a first inlet of the three-way flow guide piece through the second switch valve, the third end of the second four-way valve is communicated with a return air port of the compressor, and the fourth end of the second four-way valve is communicated with a second port of the indoor heat exchanger; the third switch valve is communicated between the first inlet of the three-way flow guide piece and the first port of the indoor heat exchanger; the fourth switching valve is communicated between the second end of the second four-way valve and the second port of the outdoor heat exchanger; the fifth switch valve is communicated between the second port of the outdoor heat exchanger and the first port of the indoor heat exchanger; and the controller is used for controlling the second switch valve and the fifth switch valve to be switched on, the third switch valve and the fourth switch valve to be switched off, the first end and the second end of the second four-way valve to be switched on, and the third end and the fourth end of the second four-way valve to be switched on when the air conditioner is in a refrigerating mode.
Preferably, the controller is further configured to control the second switch valve and the fifth switch valve to be turned off, the third switch valve and the fourth switch valve to be turned on, the first end and the fourth end of the second four-way valve to be turned on, and the second end and the third end of the second four-way valve to be turned on when the air conditioner is in a heating mode.
Preferably, the controller is further configured to obtain an outdoor environment temperature, and adjust an on-off state of the refrigerant flow control valve according to the outdoor environment temperature.
Preferably, the controller is further configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the cooling mode and the outdoor environment temperature is less than a first temperature threshold; and when the air conditioner is in a refrigeration mode and the outdoor environment temperature is greater than or equal to the first temperature threshold value, controlling the refrigerant flow control valve to stop.
Preferably, the controller is further configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the cooling mode and the outdoor environment temperature is less than a first temperature threshold, and the opening degree of the refrigerant flow control valve is larger as the outdoor environment temperature is lower.
Preferably, the controller is further configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the cooling mode and the outdoor environment temperature is less than or equal to a second temperature threshold; when the air conditioner is in a refrigeration mode and the outdoor environment temperature is greater than or equal to a third temperature threshold value, controlling the refrigerant flow control valve to stop; the second temperature threshold is less than the third temperature threshold; the controller is further used for controlling the refrigerant flow control valve to maintain the current on-off state when the air conditioner is in a refrigeration mode and the outdoor environment temperature is greater than the second temperature threshold and less than the third temperature threshold.
Preferably, the energy-saving air conditioning system further includes a refrigerant flow control valve, an exhaust port of the compressor is communicated with the first inlet of the three-way flow guide member through the refrigerant flow control valve, an outlet of the three-way flow guide member is communicated with the first port of the outdoor heat exchanger, the second port of the outdoor heat exchanger is communicated with the return air port of the compressor, and an exhaust port of the compressor is also communicated with the second inlet of the three-way flow guide member through the indoor heat exchanger.
Preferably, the energy-saving air conditioning system further comprises a controller, and the controller is used for controlling the refrigerant flow control valve to be conducted when the air conditioner is in a heating mode and the outdoor environment temperature is greater than a fourth temperature threshold value; and when the air conditioner is in a refrigeration mode and the outdoor environment temperature is less than or equal to the fourth temperature threshold value, controlling the refrigerant flow control valve to stop.
Preferably, the controller is further configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the heating mode and the outdoor environment temperature is greater than a fourth temperature threshold, and the refrigerant flow control valve has a larger opening degree as the outdoor environment temperature is higher.
Preferably, the controller is further configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the heating mode and the outdoor environment temperature is greater than or equal to a fifth temperature threshold; when the air conditioner is in a refrigeration mode and the outdoor environment temperature is less than or equal to a sixth temperature threshold value, controlling the refrigerant flow control valve to stop; the fifth temperature threshold is greater than the sixth temperature threshold; the controller is further configured to control the refrigerant flow control valve to maintain a current on-off state when the air conditioner is in a heating mode and the outdoor environment temperature is greater than the sixth temperature threshold and less than the fifth temperature threshold.
Preferably, the three-way flow guide is an ejector.
According to the invention, the three-way flow guide piece is arranged in the air conditioning system, the outlet of the three-way flow guide piece is communicated with one port of the outdoor heat exchanger, one inlet of the three-way flow guide piece is communicated with the exhaust port of the compressor, and the other inlet of the three-way flow guide piece is communicated with one port of the indoor heat exchanger, so that a high-temperature refrigerant discharged by the compressor and a low-temperature refrigerant discharged by the indoor heat exchanger are mixed in the three-way flow guide piece and then flow into the outdoor heat exchanger, the temperature of the refrigerant at the inlet of the outdoor heat exchanger can be reduced during refrigeration of the air conditioner, the temperature of the refrigerant at the inlet of the outdoor heat exchanger can be increased during heating of.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an energy-saving air conditioning system according to the present invention;
FIG. 2 is a schematic structural diagram of an energy-saving air conditioning system according to another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an energy-saving air conditioning system according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of an energy-saving air conditioning system according to still another embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides an energy-saving air-conditioning system, referring to fig. 1 and 2, the energy-saving air-conditioning system comprises a compressor 100, an outdoor heat exchanger 200, an indoor heat exchanger 300 and a controller, and further comprises a three-way flow guide piece 400, wherein the three-way flow guide piece 400 comprises two inlets, a mixing chamber communicated with the two inlets and an outlet communicated with the mixing chamber, and the three-way flow guide piece 400 controls a refrigerant to enter through the two inlets, then to be mixed in the mixing chamber and to flow out through the outlet; an outlet of the three-way flow guide member 400 is communicated with a port of the outdoor heat exchanger 200, so that the refrigerant flowing out of the three-way flow guide member 400 flows into the outdoor heat exchanger 200; an inlet of the three-way guide member 400 is communicated with an exhaust port of the compressor 100; the other inlet of the three-way flow guide 400 is communicated with a port of the indoor heat exchanger 300, so that the three-way flow guide 400 receives the refrigerant flowing out of the indoor heat exchanger 300.
In this embodiment, the energy-saving air conditioning system may be a single-cooling air conditioner, a single-heating air conditioner, or a heat pump type air conditioner.
The three-way guide member 400 may be an ejector having two inlets and one outlet, and the refrigerants flow into the ejector through the two inlets and are mixed in the ejector, and the mixed refrigerants flow out through the outlet of the ejector. One of the two inlets of the ejector is a main fluid inlet, and the other inlet is an injection fluid inlet.
During air conditioning refrigeration, as shown in fig. 1, a throttling assembly 700 is further disposed between the indoor heat exchanger 300 and the outdoor heat exchanger 200, the refrigerant flows out through the outdoor heat exchanger 200 and the throttling assembly 700 in sequence and then enters the indoor heat exchanger 300, and then flows out through the indoor heat exchanger 300 and is divided into two paths, one path of the refrigerant flows into a return air port of the compressor 100 and then is discharged through an exhaust port of the compressor 100 and enters an inlet (the inlet may be a main fluid inlet) of the ejector, the other path of the refrigerant flows into another inlet (the inlet may be an ejector fluid inlet) of the ejector, and the two paths of the refrigerant are mixed inside the ejector and then flow into the outdoor heat exchanger 200. Because the refrigerant flowing out of the exhaust port of the compressor 100 is a high-temperature high-pressure gaseous refrigerant and the refrigerant flowing out of the indoor heat exchanger 300 is a low-temperature low-pressure gaseous refrigerant, the two paths of refrigerants are mixed inside the ejector to obtain the refrigerant with the temperature lower than that of the refrigerant discharged from the exhaust port of the compressor 100, and therefore, compared with the conventional refrigeration, the temperature of the refrigerant flowing into the outdoor heat exchanger 200 can be effectively reduced, the heat exchange loss of the outdoor heat exchanger 200 is further reduced, and the electric energy is saved. In addition, the introduction of the ejector can also increase the pressure at the inlet of the outdoor heat exchanger 200 to recover a portion of the work. In addition, since only a portion of the refrigerant flowing out of the indoor heat exchanger 300 is returned to the compressor 100, power consumption of the compressor 100 can be reduced, and electric power can be saved.
During heating of the air conditioner, as shown in fig. 2, the refrigerant flows out through the exhaust port of the compressor 100 and then is divided into two paths, one path of the refrigerant flows into one inlet (the inlet may be a main fluid inlet) of the ejector, the other path of the refrigerant flows into the other inlet (the inlet may be an injection fluid inlet) of the ejector through the indoor heat exchanger 300, and the two paths of the refrigerant are mixed in the ejector and then flow into the outdoor heat exchanger 200, and flow out through the outdoor heat exchanger 200 and then flow into the return port of the compressor 100. The refrigerant flowing out of the discharge port of the compressor 100 is a high-temperature high-pressure gaseous refrigerant, and the refrigerant flowing out of the indoor heat exchanger 300 is a low-temperature high-pressure liquid refrigerant. Optionally, a throttling assembly 700 may be further disposed between the indoor heat exchanger 300 and another inlet of the ejector, and the low-temperature and high-pressure liquid refrigerant is changed into a low-temperature and low-pressure gas-liquid mixed refrigerant via the throttling assembly 700 and then enters another inlet of the ejector, so that after two paths of refrigerants are mixed inside the ejector, a refrigerant with a temperature higher than that of the refrigerant flowing out of the indoor heat exchanger 300 can be obtained, and thus, compared with conventional heating, the temperature of the refrigerant flowing into the outdoor heat exchanger 200 can be effectively increased, thereby reducing the heat exchange loss of the outdoor heat exchanger 200, and saving electric energy. In addition, the introduction of the ejector can also increase the pressure at the inlet of the outdoor heat exchanger 200 to recover a portion of the work.
Alternatively, the three-way flow guide 400 may be a structure including a three-way valve and a one-way valve. For example, the three-way flow guiding member 400 may include a three-way valve and two one-way valves, the three-way valve includes two inlets and one outlet, and one-way valve is disposed at each inlet, and the outlet of the one-way valve is communicated with the inlet of the three-way valve, so that the refrigerant can only flow in through the inlet of the three-way valve, and the refrigerant is prevented from flowing out through the inlet of the three-way valve.
According to the invention, the three-way flow guide piece 400 is arranged in the air conditioning system, the outlet of the three-way flow guide piece 400 is communicated with one port of the outdoor heat exchanger 200, one inlet of the three-way flow guide piece 400 is communicated with the exhaust port of the compressor 100, and the other inlet is communicated with one port of the indoor heat exchanger 300, so that a high-temperature refrigerant discharged by the compressor 100 and a low-temperature refrigerant discharged by the indoor heat exchanger 300 are mixed in the three-way flow guide piece 400 and then flow into the outdoor heat exchanger 200, the temperature of the refrigerant at the inlet of the outdoor heat exchanger 200 can be reduced during refrigeration of the air conditioner, the temperature of the refrigerant at the inlet of the outdoor heat exchanger 200 can be increased during heating of the air conditioner, the heat exchange loss of.
Further, based on the first embodiment of the energy-saving air conditioning system of the present invention, the present invention further provides a second embodiment of the energy-saving air conditioning system, as shown in fig. 1, the energy-saving air conditioning system further includes a refrigerant flow control valve 800, an exhaust port of the compressor 100 is communicated with the first inlet 410 of the three-way flow guide 400, an outlet of the three-way flow guide 400 is communicated with the first port of the outdoor heat exchanger 200, the second port of the outdoor heat exchanger 200 is communicated with the first port of the indoor heat exchanger 300, the second port of the indoor heat exchanger 300 is communicated with the return air port of the compressor 100, and the second port of the indoor heat exchanger 300 is further communicated with the second inlet 420 of the three-way flow guide 400 via the refrigerant flow control valve 800.
In this embodiment, taking the three-way flow guide 400 as an injector as an example, the first inlet 410 of the injector may be a main fluid inlet, and the second inlet 420 may be a pilot fluid inlet. The refrigerant flow control valve 800 may be an electronic expansion valve. The controller may control the opening of the refrigerant flow control valve 800 when the refrigerant flow control valve is turned on, turned off, or turned on. For example, when the outdoor temperature is greatly different from the comfortable temperature required by the user, the refrigerant flow control valve 800 is controlled to be closed, so that the air conditioner does not perform the energy-saving function, and the heat exchange effect of the air conditioner is ensured; when the outdoor temperature is smaller than the comfortable temperature required by the user, the heat exchange amount required by the user is smaller, so that the heat exchange capacity of the outdoor heat exchanger 200 is not too high, and the refrigerant flow control valve 800 can be controlled to be switched on, so that the air conditioner can ensure the heat exchange effect required by the user and can save energy at the same time.
Further, based on the second embodiment of the energy-saving air-conditioning system of the present invention, the present invention further provides a third embodiment of the energy-saving air-conditioning system, as shown in fig. 3, the energy-saving air-conditioning system further includes a first four-way valve 510 and a first switch valve 610; a first end of the first four-way valve 510 is communicated with an exhaust port of the compressor 100, a second end is communicated with the first inlet 410 of the three-way flow guide member 400, a third end is communicated with a return air port of the compressor 100, and a fourth end is communicated with a second port of the indoor heat exchanger 300; the first switch valve 610 is connected between the second end of the first four-way valve 510 and the first port of the outdoor heat exchanger 200; the controller is configured to control the first switching valve 610 to be turned off, the first end and the second end of the first four-way valve 510 to be turned on, and the third end and the fourth end of the first four-way valve 510 to be turned on when the air conditioner is in a cooling mode. The controller is further configured to control the first switch valve 610 to be turned on, the refrigerant flow control valve 800 to be turned off, the first end and the fourth end of the first four-way valve 510 to be turned on, and the second end and the third end of the first four-way valve 510 to be turned on when the air conditioner is in a heating mode.
In this embodiment, the energy-saving air conditioning system may be a heat pump type air conditioner, and the air conditioner may be switched to a cooling mode or a heating mode by controlling the four-way valve.
A throttle assembly 700 is further provided between the indoor heat exchanger 300 and the outdoor heat exchanger 200.
When the air conditioner is in the cooling mode, as shown in fig. 3, a-B of the first four-way valve 510 is turned on, C-D is turned on, and the first switching valve 610 is turned off. The refrigerant discharged from the discharge port of the compressor 100 passes through the a-B port of the four-way valve and then enters the first inlet 410 of the three-way flow guide 400. The refrigerant flowing out of the three-way flow guide 400 is divided into two paths after sequentially passing through the outdoor heat exchanger 200, the throttling assembly 700 and the indoor heat exchanger 300. One path passes through the D-C port of the first four-way valve 510 and enters the return port of the compressor 100. The other path of the refrigerant passes through the refrigerant flow control valve 800 and enters the second inlet 420 of the three-way flow guide 400, and is mixed with the refrigerant discharged from the discharge port of the compressor 100 and then flows out of the outlet of the three-way flow guide 400.
When the air conditioner is in the heating mode, as shown in fig. 3, the a-D and B-C of the first four-way valve 510 are turned on, and the first switching valve 610 is turned on. Optionally, a one-way valve may be further disposed at the outlet of the three-way flow guiding element 400, and the on-state direction of the one-way valve is from the outlet of the three-way flow guiding element 400 to the outdoor heat exchanger 200, or a switch valve may be further disposed, and the switch valve is turned on in the cooling mode and turned off in the heating mode. When the compressor operates in the heating mode, the refrigerant flow control valve 800 is turned off and the first switching valve 610 is turned on, so that all the refrigerant discharged from the discharge port of the compressor 100 enters the indoor heat exchanger 300 through the a-D ports of the first four-way valve 510, and enters the return port of the compressor 100 through the indoor heat exchanger 300, the throttle assembly 700, the outdoor heat exchanger 200, the first switching valve 610 and the B-C ports of the first four-way valve 510 in sequence.
The air conditioner provided by the embodiment can save energy in a cooling mode, and is suitable for regions with higher heating requirements, such as the south.
Further, based on the second embodiment of the energy-saving air-conditioning system of the present invention, the present invention further provides a fourth embodiment of the energy-saving air-conditioning system, as shown in fig. 4, the energy-saving air-conditioning system further includes a second four-way valve 520, a second on-off valve 620, a third on-off valve 630, a fourth on-off valve 640, and a fifth on-off valve 650; a first end of the second four-way valve 520 is communicated with an exhaust port of the compressor 100, a second end is communicated with the first inlet 410 of the three-way flow guide element 400 through the second switch valve 620, a third end is communicated with a return air port of the compressor 100, and a fourth end is communicated with a second port of the indoor heat exchanger 300; the third on-off valve 630 is communicated between the first inlet 410 of the three-way flow guide 400 and the first port of the indoor heat exchanger 300; the fourth switching valve 640 is communicated between the second end of the second four-way valve 520 and the second port of the outdoor heat exchanger 200; the fifth switching valve 650 is communicated between the second port of the outdoor heat exchanger 200 and the first port of the indoor heat exchanger 300; the controller is configured to control the second switching valve 620 and the fifth switching valve 650 to be turned on, the third switching valve 630 and the fourth switching valve 640 to be turned off, the first end and the second end of the second four-way valve 520 to be turned on, and the third end and the fourth end of the second four-way valve 520 to be turned on when the air conditioner is in the cooling mode. The controller is further configured to control the second switch valve 620 and the fifth switch valve 650 to be turned off, the third switch valve 630 and the fourth switch valve 640 to be turned on, the first end and the fourth end of the second four-way valve 520 to be turned on, and the second end and the third end of the second four-way valve 520 to be turned on when the air conditioner is in a heating mode.
In this embodiment, the energy-saving air conditioning system may be a heat pump type air conditioner, and the air conditioner may be switched to a cooling mode or a heating mode by controlling the four-way valve.
A throttle assembly 700 is further provided at the first port of the indoor heat exchanger 300.
When the air conditioner is in the cooling mode, as shown in fig. 4, a-B of the second four-way valve 520 is turned on, C-D is turned on, the second switching valve 620 and the fifth switching valve 650 are turned on, and the third switching valve 630 and the fourth switching valve 640 are turned off. The refrigerant discharged from the discharge port of the compressor 100 passes through the second on-off valve 620 and then enters the first inlet 410 of the three-way flow guide 400. The refrigerant flowing out of the three-way flow guide 400 is divided into two paths after passing through the outdoor heat exchanger 200, the fifth switch valve 650, the throttling assembly 700 and the indoor heat exchanger 300 in sequence. One path of refrigerant enters the return port of the compressor 100 through the D-C port of the second four-way valve 520. The other path of refrigerant enters the second inlet 420 of the three-way flow guide 400 through the refrigerant flow control valve 800, is mixed with the refrigerant discharged from the discharge port of the compressor 100, and then flows out of the outlet of the three-way flow guide 400.
When the air conditioner is in the heating mode, as shown in fig. 4, a-D of the second four-way valve 520 is turned on, B-C is turned on, the second switching valve 620 and the fifth switching valve 650 are turned off, and the third switching valve 630 and the fourth switching valve 640 are turned on. The refrigerant discharged from the discharge port of the compressor 100 is divided into two paths by the second four-way valve 520A-D. One path of refrigerant enters the first inlet 410 of the three-way flow guide member 400 after passing through the indoor heat exchanger 300, the throttling assembly 700 and the third on/off valve 630 in sequence. The other refrigerant enters the second inlet 420 of the three-way flow guide 400 through the refrigerant flow control valve 800. The two refrigerant paths are mixed in the three-way flow guide member 400, and then sequentially enter the air return port of the compressor 100 through the outdoor heat exchanger 200, the fourth switching valve 640, and the B-C end of the second four-way valve 520.
The air conditioner that this embodiment provided all can play energy-conserving effect when refrigeration mode and heating mode, and the commonality is stronger, and energy-conserving effect is better.
Further, based on the first embodiment of the energy-saving air conditioning system of the present invention, the present invention further provides a fifth embodiment of the energy-saving air conditioning system, as shown in fig. 2, the energy-saving air conditioning system further includes a refrigerant flow control valve 800, an exhaust port of the compressor 100 is communicated with the first inlet 410 of the three-way flow guide 400 through the refrigerant flow control valve 800, an outlet of the three-way flow guide 400 is communicated with the first port of the outdoor heat exchanger 200, the second port of the outdoor heat exchanger 200 is communicated with a return air port of the compressor 100, and the exhaust port of the compressor 100 is further communicated with the second inlet 420 of the three-way flow guide 400 through the indoor heat exchanger 300.
Optionally, the energy-saving air conditioning system provided by this embodiment is a single-heating air conditioner. Optionally, a throttle assembly 700 is further disposed between the indoor heat exchanger 300 and the second inlet 420 of the three-way flow guide 400.
During heating of the air conditioner, as shown in fig. 2, the refrigerant discharged from the discharge port of the compressor 100 is divided into two paths, one path of the refrigerant enters the first inlet 410 of the three-way flow guide member 400 through the refrigerant flow control valve 800, and the other path of the refrigerant enters the second inlet 420 of the three-way flow guide member 400 after sequentially passing through the indoor heat exchanger 300 and the throttling assembly 700.
In this embodiment, taking the three-way flow guide 400 as an injector as an example, the first inlet 410 of the injector may be a main fluid inlet, and the second inlet 420 may be a pilot fluid inlet. The refrigerant flow control valve 800 may be an electronic expansion valve. The controller may control the opening of the refrigerant flow control valve 800 when the refrigerant flow control valve is turned on, turned off, or turned on. For example, when the outdoor temperature is greatly different from the comfortable temperature required by the user, the refrigerant flow control valve 800 is controlled to be closed, so that the air conditioner does not perform the energy-saving function, and the heating effect of the air conditioner is ensured; when the difference between the outdoor temperature and the comfortable temperature required by the user is small, the heating capacity required by the user is small, so that the heating capacity of the outdoor heat exchanger 200 is not required to be too high, and the refrigerant flow control valve 800 can be controlled to be switched on, so that the air conditioner can ensure the heating effect required by the user and can save energy at the same time.
Further, based on any one of the second to fifth embodiments of the energy-saving air-conditioning system of the present invention, the present invention further provides a sixth embodiment of the energy-saving air-conditioning system, and the controller is further configured to obtain an outdoor ambient temperature, and adjust an on-off state of the refrigerant flow control valve 800 according to the outdoor ambient temperature.
In this embodiment, when the air conditioner performs refrigeration, and the outdoor environment temperature is high, the refrigeration capacity required by the user is large, and since the refrigeration effect of the air conditioner is affected by the energy-saving air conditioning system during energy conservation, the air conditioner can be controlled not to enter an energy-saving mode and only conventional refrigeration is performed when the refrigeration capacity required by the user is large. When the outdoor environment temperature is relatively low, the refrigerating capacity required by the user is small, and the air conditioner can be controlled to enter an energy-saving mode at the moment. When the refrigerant flow control valve 800 is turned on, the air conditioner enters an energy saving mode. When the refrigerant flow control valve 800 is turned off, the air conditioner does not enter the energy saving mode.
Several ways of adjusting the on-off state of the refrigerant flow control valve 800 according to the outdoor environment temperature are proposed as follows:
in the first mode, the controller is further configured to control the refrigerant flow control valve 800 to be turned on when the air conditioner is in the cooling mode and the outdoor environment temperature is less than the first temperature threshold; when the air conditioner is in a cooling mode and the outdoor environment temperature is greater than or equal to the first temperature threshold value, the refrigerant flow control valve 800 is controlled to be closed.
In this embodiment, the size of the first temperature threshold may be set according to actual needs, and may be, for example, 23 ℃ to 27 ℃. When the temperature is lower than the first temperature threshold value, the air conditioner enters an energy-saving mode, the outdoor environment temperature is not too high, the refrigerating capacity required by a user is not too much, and therefore the heat exchange capacity of the air conditioner does not need to be too strong, the air conditioner can enter the energy-saving mode and simultaneously meet the refrigerating requirement of the user, and the purposes of saving energy and taking comfort into consideration are achieved. On the contrary, when the temperature is higher than the first temperature threshold value, the outdoor environment temperature is higher, the refrigerating capacity required by the user is larger, the air conditioner is required to have stronger heat exchange capacity, the air conditioner carries out conventional refrigeration and does not enter an energy-saving mode, and the comfort of the user during refrigeration is ensured.
Optionally, in order to further achieve the purpose of energy saving and comfort, the controller is further configured to control the refrigerant flow control valve 800 to be turned on when the air conditioner is in the cooling mode and the outdoor environment temperature is less than the first temperature threshold, and the lower the outdoor environment temperature is, the larger the opening degree of the refrigerant flow control valve 800 is. Since the lower the outdoor ambient temperature is, the less the cooling capacity required by the user is, the energy saving effect can be further improved by increasing the opening degree of the refrigerant flow control valve 800, and the heat exchange capacity of the air conditioner is reduced, thereby further improving the energy saving effect on the basis of meeting the comfort of the user.
In a second mode, the controller is further configured to control the refrigerant flow control valve 800 to be turned on when the air conditioner is in the cooling mode and the outdoor environment temperature is less than or equal to a second temperature threshold; when the air conditioner is in a refrigeration mode and the outdoor environment temperature is greater than or equal to a third temperature threshold value, controlling the refrigerant flow control valve 800 to stop; the second temperature threshold is less than the third temperature threshold; the controller is further configured to control the refrigerant flow control valve 800 to maintain a current on-off state when the air conditioner is in the cooling mode and the outdoor environment temperature is greater than the second temperature threshold and less than the third temperature threshold.
In this embodiment, the second temperature threshold may be 24 ℃ and the third temperature threshold may be 26 ℃ for example. The air conditioner does not switch the current mode when the outdoor environment temperature is within the temperature range interval, enters the energy-saving mode when the outdoor environment temperature is smaller than or equal to the second temperature threshold, and enters the non-energy-saving mode when the outdoor environment temperature is larger than or equal to the third temperature threshold, so that frequent jumping of the air conditioner between the energy-saving mode and the non-energy-saving mode is effectively avoided.
In a third mode, the controller is further configured to control the refrigerant flow control valve 800 to be turned on when the air conditioner is in the heating mode and the outdoor environment temperature is greater than a fourth temperature threshold; and when the air conditioner is in a cooling mode and the outdoor environment temperature is less than or equal to the fourth temperature threshold value, controlling the refrigerant flow control valve 800 to be closed.
In this embodiment, the magnitude of the fourth temperature threshold may be set according to actual needs, and is not limited herein. When the temperature is higher than the fourth temperature threshold value, the air conditioner enters an energy-saving mode, the outdoor environment temperature is not too low, and the heating quantity required by a user is not too much, so that the heat exchange capacity of the air conditioner is not too strong, the air conditioner can enter the energy-saving mode, meanwhile, the heating requirement of the user can be met, and the purpose of energy conservation and comfort compromise is achieved. On the contrary, when the temperature is lower than the first temperature threshold, the outdoor environment temperature is lower at the moment, the heating quantity required by the user is larger, and therefore the air conditioner is required to have stronger heat exchange capacity, the air conditioner performs conventional heating, does not enter an energy-saving mode, and ensures the comfort when the user heats.
Optionally, in order to further achieve the purpose of energy saving and comfort, the controller is further configured to control the refrigerant flow control valve 800 to be turned on when the air conditioner is in the heating mode and the outdoor environment temperature is greater than a fourth temperature threshold, and the higher the outdoor environment temperature is, the larger the opening degree of the refrigerant flow control valve 800 is. Since the higher the outdoor ambient temperature is, the less the amount of heating required by the user is, the energy saving effect can be further improved by increasing the opening degree of the refrigerant flow control valve 800, and the heat exchange amount of the air conditioner is reduced, thereby further improving the energy saving effect on the basis of meeting the comfort of the user.
In a fourth mode, the controller is further configured to control the refrigerant flow control valve 800 to be turned on when the air conditioner is in the heating mode and the outdoor environment temperature is greater than or equal to a fifth temperature threshold; when the air conditioner is in a refrigeration mode and the outdoor environment temperature is less than or equal to a sixth temperature threshold value, controlling the refrigerant flow control valve 800 to stop; the fifth temperature threshold is greater than the sixth temperature threshold; the controller is further configured to control the refrigerant flow control valve 800 to maintain a current on-off state when the air conditioner is in the heating mode and the outdoor environment temperature is greater than the sixth temperature threshold and less than the fifth temperature threshold.
In this embodiment, a temperature range interval with the fifth temperature threshold and the sixth temperature threshold as endpoints is set, and when the outdoor environment temperature is within the temperature range interval, the air conditioner does not switch the current mode, enters the energy-saving mode when the outdoor environment temperature is greater than or equal to the fifth temperature threshold, and enters the non-energy-saving mode when the outdoor environment temperature is less than or equal to the sixth temperature threshold, so that the air conditioner is effectively prevented from frequently jumping between the energy-saving mode and the non-energy-saving mode.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In addition, the descriptions relating to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should be considered to be absent and not within the protection scope of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. An energy-saving air conditioning system comprises a compressor, an outdoor heat exchanger and an indoor heat exchanger and is characterized by further comprising a three-way flow guide piece, wherein the three-way flow guide piece comprises two inlets, a mixing chamber communicated with the two inlets and an outlet communicated with the mixing chamber, and the three-way flow guide piece controls a refrigerant to enter through the two inlets, then to be mixed in the mixing chamber and to flow out through the outlet; an outlet of the three-way flow guide piece is communicated with one port of the outdoor heat exchanger, so that the refrigerant flowing out of the three-way flow guide piece flows into the outdoor heat exchanger; an inlet of the three-way flow guide piece is communicated with an exhaust port of the compressor; the other inlet of the three-way flow guide piece is communicated with one port of the indoor heat exchanger so that the three-way flow guide piece receives the refrigerant flowing out of the indoor heat exchanger;
the energy-saving air conditioning system further comprises a refrigerant flow control valve, under the refrigerating working condition, an exhaust port of the compressor is communicated with a first inlet of the three-way flow guide piece, an outlet of the three-way flow guide piece is communicated with a first port of the outdoor heat exchanger, a second port of the outdoor heat exchanger is communicated with a first port of the indoor heat exchanger, a second port of the indoor heat exchanger is communicated with a return air port of the compressor, and the second port of the indoor heat exchanger is also communicated with a second inlet of the three-way flow guide piece through the refrigerant flow control valve;
the energy-saving air conditioning system also comprises a controller, a second four-way valve, a second switch valve, a third switch valve, a fourth switch valve and a fifth switch valve; the first end of the second four-way valve is communicated with an exhaust port of the compressor, the second end of the second four-way valve is communicated with a first inlet of the three-way flow guide piece through the second switch valve, the third end of the second four-way valve is communicated with a return air port of the compressor, and the fourth end of the second four-way valve is communicated with a second port of the indoor heat exchanger; the third switch valve is communicated between the first inlet of the three-way flow guide piece and the first port of the indoor heat exchanger; the fourth switching valve is communicated between the second end of the second four-way valve and the second port of the outdoor heat exchanger; the fifth switch valve is communicated between the second port of the outdoor heat exchanger and the first port of the indoor heat exchanger; and the controller is used for controlling the second switch valve and the fifth switch valve to be switched on, the third switch valve and the fourth switch valve to be switched off, the first end and the second end of the second four-way valve to be switched on, and the third end and the fourth end of the second four-way valve to be switched on when the air conditioner is in a refrigerating mode.
2. The economizer air conditioning system of claim 1 wherein the controller is further configured to control the second and fifth switching valves to be turned off, the third and fourth switching valves to be turned on, the first and fourth ends of the second four-way valve to be turned on, and the second and third ends of the second four-way valve to be turned on when the air conditioner is in the heating mode.
3. The energy-saving air conditioning system as claimed in claim 1 or 2, wherein the controller is further configured to obtain an outdoor ambient temperature, and adjust the on-off state of the refrigerant flow control valve according to the outdoor ambient temperature.
4. The energy saving air conditioning system of claim 3, wherein the controller is further configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the cooling mode and the outdoor ambient temperature is less than the first temperature threshold; and when the air conditioner is in a refrigeration mode and the outdoor environment temperature is greater than or equal to the first temperature threshold value, controlling the refrigerant flow control valve to stop.
5. The energy saving air conditioning system of claim 4, wherein the controller is further configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the cooling mode and the outdoor ambient temperature is less than a first temperature threshold, and the refrigerant flow control valve has a larger opening degree as the outdoor ambient temperature is lower.
6. The energy saving air conditioning system of claim 3, wherein the controller is further configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the cooling mode and the outdoor ambient temperature is less than or equal to a second temperature threshold; when the air conditioner is in a refrigeration mode and the outdoor environment temperature is greater than or equal to a third temperature threshold value, controlling the refrigerant flow control valve to stop; the second temperature threshold is less than the third temperature threshold; the controller is further used for controlling the refrigerant flow control valve to maintain the current on-off state when the air conditioner is in a refrigeration mode and the outdoor environment temperature is greater than the second temperature threshold and less than the third temperature threshold.
7. The energy-saving air conditioning system according to claim 1, further comprising a refrigerant flow control valve, wherein under a heating condition, the exhaust port of the compressor is communicated with the first inlet of the three-way flow guide member via the refrigerant flow control valve, the outlet of the three-way flow guide member is communicated with the first port of the outdoor heat exchanger, the second port of the outdoor heat exchanger is communicated with the return air port of the compressor, and the exhaust port of the compressor is further communicated with the second inlet of the three-way flow guide member via the indoor heat exchanger.
8. The energy saving air conditioning system according to claim 2 or 7, further comprising a controller, wherein the controller is configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the heating mode and the outdoor ambient temperature is greater than a fourth temperature threshold; and when the air conditioner is in a refrigeration mode and the outdoor environment temperature is less than or equal to the fourth temperature threshold value, controlling the refrigerant flow control valve to stop.
9. The economizer air conditioning system of claim 8 wherein the controller is further configured to control the refrigerant flow control valve to be open when the air conditioner is in the heating mode and the outdoor ambient temperature is greater than a fourth temperature threshold, and the refrigerant flow control valve is opened to a greater degree as the outdoor ambient temperature increases.
10. The energy-saving air conditioning system according to claim 2 or 7, wherein the controller is further configured to control the refrigerant flow control valve to be turned on when the air conditioner is in the heating mode and the outdoor ambient temperature is greater than or equal to a fifth temperature threshold; when the air conditioner is in a refrigeration mode and the outdoor environment temperature is less than or equal to a sixth temperature threshold value, controlling the refrigerant flow control valve to stop; the fifth temperature threshold is greater than the sixth temperature threshold; the controller is further configured to control the refrigerant flow control valve to maintain a current on-off state when the air conditioner is in a heating mode and the outdoor environment temperature is greater than the sixth temperature threshold and less than the fifth temperature threshold.
11. The economizer air conditioning system of claim 1 or 2 wherein the three-way flow guide is an ejector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383038.0A CN106016613B (en) | 2016-05-31 | 2016-05-31 | Energy-saving air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383038.0A CN106016613B (en) | 2016-05-31 | 2016-05-31 | Energy-saving air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106016613A CN106016613A (en) | 2016-10-12 |
| CN106016613B true CN106016613B (en) | 2020-04-21 |
Family
ID=57093190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610383038.0A Active CN106016613B (en) | 2016-05-31 | 2016-05-31 | Energy-saving air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106016613B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724203A (en) * | 2018-12-29 | 2019-05-07 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2526318Y2 (en) * | 1990-12-28 | 1997-02-19 | サンデン株式会社 | Refrigeration / cooling equipment |
| KR100876285B1 (en) * | 2008-01-28 | 2008-12-26 | 엘에스엠트론 주식회사 | Gas heat pump system |
| CN201344672Y (en) * | 2008-12-30 | 2009-11-11 | 上海微电子装备有限公司 | Refrigeration system |
| CN102016458A (en) * | 2008-02-29 | 2011-04-13 | 大金工业株式会社 | Air conditioner and refrigerant amount determining method |
| CN201909486U (en) * | 2010-12-13 | 2011-07-27 | 泰豪科技股份有限公司 | Air conditioner capable of performing low-load running of machine set by hot-gas bypass adjusting valve |
| CN203704419U (en) * | 2012-12-27 | 2014-07-09 | 三菱电机株式会社 | Refrigerating cycle device |
-
2016
- 2016-05-31 CN CN201610383038.0A patent/CN106016613B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2526318Y2 (en) * | 1990-12-28 | 1997-02-19 | サンデン株式会社 | Refrigeration / cooling equipment |
| KR100876285B1 (en) * | 2008-01-28 | 2008-12-26 | 엘에스엠트론 주식회사 | Gas heat pump system |
| CN102016458A (en) * | 2008-02-29 | 2011-04-13 | 大金工业株式会社 | Air conditioner and refrigerant amount determining method |
| CN201344672Y (en) * | 2008-12-30 | 2009-11-11 | 上海微电子装备有限公司 | Refrigeration system |
| CN201909486U (en) * | 2010-12-13 | 2011-07-27 | 泰豪科技股份有限公司 | Air conditioner capable of performing low-load running of machine set by hot-gas bypass adjusting valve |
| CN203704419U (en) * | 2012-12-27 | 2014-07-09 | 三菱电机株式会社 | Refrigerating cycle device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106016613A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3734167B1 (en) | Air conditioner system | |
| CN104101127B (en) | Multi-online air-conditioning system and defrosting control method thereof | |
| CN203533802U (en) | Air-conditioning system | |
| US11236926B2 (en) | Air conditioning heat pump system using ejector, air conditioner, and air conditioner control method | |
| CN203964434U (en) | Heat pump air conditioner | |
| CN104061705A (en) | Two-stage compression air conditioner system and control method thereof | |
| CN103383157A (en) | Heat pump air-conditioning system and control method thereof | |
| CN203454454U (en) | Heat pump air-conditioning system | |
| CN103968503A (en) | Air conditioner outdoor unit, and defrosting method and device for air conditioner | |
| CN210951663U (en) | Air conditioning system | |
| CN203964436U (en) | Two-stage Compression air-conditioning system | |
| CN104976813A (en) | Air conditioner | |
| CN104315752A (en) | Heat pump system and air conditioner with heat pump system | |
| CN1982798A (en) | Compensating system and compensating control method for compressor | |
| CN107192156B (en) | Air conditioner and defrosting control method and system of air conditioner | |
| CN110822544A (en) | Fixed-frequency air conditioning system for improving indoor comfort | |
| CN106016613B (en) | Energy-saving air conditioning system | |
| CN112902473A (en) | Air conditioner heat exchange structure, air conditioner external unit, air conditioner system and air conditioner system control method | |
| CN110207273B (en) | Outdoor heat exchanger, refrigeration system, air conditioner, operation control method and device | |
| CN200972229Y (en) | Two-purpose machine of air-conditioning and water heating | |
| CN205373132U (en) | Indoor temperature regulation and control system and air conditioner | |
| CN214581887U (en) | Air conditioner heat exchange structure, air conditioner outer unit and air conditioning system | |
| CN213514499U (en) | Heat pump system and air conditioning equipment | |
| CN214581891U (en) | Air conditioner heat exchange structure, air conditioning system and air conditioner outdoor unit | |
| CN102734989B (en) | Heat pump air conditioning system and method for quickly discharging liquid stored in gas-liquid separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |