CN112833481A - Air supplementing and enthalpy increasing device for air conditioning system and air conditioning system - Google Patents
Air supplementing and enthalpy increasing device for air conditioning system and air conditioning system Download PDFInfo
- Publication number
- CN112833481A CN112833481A CN201911157485.4A CN201911157485A CN112833481A CN 112833481 A CN112833481 A CN 112833481A CN 201911157485 A CN201911157485 A CN 201911157485A CN 112833481 A CN112833481 A CN 112833481A
- Authority
- CN
- China
- Prior art keywords
- interface
- valve
- communicated
- way valve
- port
- 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.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 56
- 230000001502 supplementing effect Effects 0.000 title abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 239000003507 refrigerant Substances 0.000 abstract description 45
- 238000010438 heat treatment Methods 0.000 description 9
- 239000013589 supplement Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/28—Means for preventing liquid refrigerant entering into the compressor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of air conditioners, and particularly provides an air supplementing and enthalpy increasing device for an air conditioning system and the air conditioning system. Through addding the parallelly connected setting of capillary and first solenoid valve, after the outage of air conditioning system, the capillary can carry out the uninstallation step-down to the refrigerant of reserving in the tonifying qi enthalpy-increasing device automatically to when opening again the tonifying qi enthalpy-increasing, can avoid appearing the condition that the compressor received a large amount of liquid refrigerant impact.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides an air supplementing and enthalpy increasing device for an air conditioning system and the air conditioning system.
Background
An air conditioning system is an apparatus capable of cooling/heating an indoor.
After the air conditioning system runs for a long time, the air return amount of the compressor is reduced, so that the refrigerating and heating performance of the air conditioning system is influenced, and in this case, the compressor needs to be supplemented with air and enthalpy.
Therefore, many air conditioning systems are now provided with an additional air-supplying enthalpy-increasing device, for example, patent No. CN204494894U discloses a heat pump air conditioning system, specifically, the air conditioning system includes a compressor, a four-way valve, an indoor heat exchanger, a first throttling device, an economizer, a second throttling device, an outdoor heat exchanger, a gas-liquid separator, an electronic expansion valve, a first solenoid valve and a second solenoid valve, a main loop of the economizer is connected in series between the first throttling device and the second throttling device through a pipeline, an auxiliary loop of the economizer is connected in series between the first throttling device and an enthalpy-supplying port of the compressor through a pipeline, the electronic expansion valve is arranged on a connecting pipeline between the auxiliary loop of the economizer and the first throttling device, the second solenoid valve is arranged on a connecting pipeline between the auxiliary loop of the economizer and the enthalpy-supplying port of the compressor, when enthalpy-supplying air to the compressor is needed, the electronic expansion valve is communicated with the second electromagnetic valve, and the refrigerant flows to the air supplement port of the compressor from the auxiliary loop of the economizer after passing through the second electromagnetic valve, so that air supplement and enthalpy increase are carried out on the compressor. However, when the air conditioner is powered off or the air conditioner is shut down, all electronic components in the air conditioning system are completely disconnected, a large amount of refrigerant can be reserved in an auxiliary loop of the economizer and a pipeline connected with an air supplement port of the compressor, when the air conditioning system is restarted to supplement air and increase enthalpy, the second electromagnetic valve is switched on, and the condition that a large amount of liquid refrigerant impacts the compressor is easy to occur, so that the service life of the compressor is influenced, and the normal operation of the air conditioning system is influenced.
Therefore, there is a need in the art for a new air make-up enthalpy-increasing device for an air conditioning system and a corresponding air conditioning system to solve the above problems.
Disclosure of Invention
In order to solve the problems in the prior art, namely to solve the problem that the service life of a compressor is affected because a large amount of liquid refrigerant is easy to impact the compressor when an air-supplementing enthalpy-increasing device is restarted due to the fact that a large amount of liquid refrigerant is reserved after an air-conditioning system is powered off in the prior art, the air-supplementing enthalpy-increasing device comprises the compressor, a condenser, an indoor unit and a gas-liquid separator which are connected, the air-supplementing enthalpy-increasing device comprises an economizer, an electronic expansion valve, a first electromagnetic valve and a capillary tube, a main loop of the economizer is connected to a liquid tube connecting the condenser and the indoor unit in series, an inlet end of an auxiliary loop of the economizer is communicated with the liquid tube through a first pipeline, and an outlet end of the auxiliary loop of the economizer is communicated with an air-supplementing port of the compressor through a second pipeline, the electronic expansion valve is arranged on the first pipeline, the first electromagnetic valve is arranged on the second pipeline, and the capillary tube and the first electromagnetic valve are arranged in parallel.
In the preferable technical scheme of the air-supplementing enthalpy-increasing device, the air-supplementing enthalpy-increasing device further comprises a second electromagnetic valve, the outlet end of the auxiliary loop of the economizer is communicated with the air inlet of the gas-liquid separator through a third pipeline, and the second electromagnetic valve is arranged on the third pipeline.
In another aspect, the invention further provides an air conditioning system, which comprises the air supplementing and enthalpy increasing device.
In the preferable technical scheme of the air conditioning system, the air conditioning system further comprises a four-way valve, a first interface of the four-way valve is communicated with an exhaust port of the compressor, a second interface of the four-way valve is communicated with the condenser, a third interface of the four-way valve is communicated with an air inlet of the gas-liquid separator, and a fourth interface of the four-way valve is communicated with the indoor unit.
In the preferable technical scheme of the air conditioning system, the air conditioning system further comprises a first four-way valve and a second four-way valve, the indoor unit comprises a first indoor unit and a second indoor unit, a first interface of the first four-way valve is communicated with an exhaust port of the compressor, the second interface of the first four-way valve is communicated with the condenser, the third interface of the first four-way valve is communicated with the air inlet of the gas-liquid separator, the fourth interface of the first four-way valve is in a disconnected state, the first interface of the second four-way valve is communicated with the exhaust port of the compressor, the second interface of the second four-way valve is in a disconnected state, the third interface of the second four-way valve is communicated with the air inlet of the gas-liquid separator, and a fourth interface of the second four-way valve is respectively communicated with the first indoor unit and the second indoor unit through a high-pressure air pipe.
In a preferred technical solution of the air conditioning system, the first indoor unit includes a first valve box, and a fourth port of the second four-way valve is communicated with the first valve box through a high pressure air pipe.
In a preferred embodiment of the air conditioning system, the first port of the first valve box is communicated with one end of an evaporator of the first indoor unit, the second interface of the first valve box is communicated with the other end of the evaporator of the first indoor unit, the liquid pipe interface of the first valve box is communicated with the first interface of the first valve box, a first regulating four-way valve is arranged in the first valve box, a first interface of the first regulating four-way valve is communicated with a high-pressure interface of the first valve box, the second interface of the first adjusting four-way valve is in a disconnected state, the third interface of the first adjusting four-way valve is communicated with the low-pressure interface of the first valve box, and a fourth interface of the first adjusting four-way valve is communicated with the second interface of the first valve box, and a fourth interface of the second four-way valve is communicated with the high-pressure interface of the first valve box through a high-pressure air pipe.
In a preferred technical solution of the air conditioning system, the second indoor unit includes a second valve box, and a fourth port of the second four-way valve is communicated with the second valve box through a high-pressure air pipe.
In a preferred embodiment of the air conditioning system, the first port of the second valve box is communicated with one end of an evaporator of the second indoor unit, the second interface of the second valve box is communicated with the other end of the evaporator of the second indoor unit, the liquid pipe interface of the second valve box is communicated with the first interface of the second valve box, a second regulating four-way valve is arranged in the second valve box, a first interface of the second regulating four-way valve is communicated with a high-pressure interface of the second valve box, the second interface of the second adjusting four-way valve is in a disconnected state, the third interface of the second adjusting four-way valve is communicated with the low-pressure interface of the second valve box, and a fourth interface of the second adjusting four-way valve is communicated with a second interface of the second valve box, and a fourth interface of the second four-way valve is communicated with a high-pressure interface of the second valve box through a high-pressure air pipe.
It can be understood by those skilled in the art that in the preferred embodiment of the present invention, by additionally arranging the capillary tube in parallel with the first electromagnetic valve, after the air conditioning system is powered off, the capillary tube can automatically unload and reduce the pressure of the refrigerant remaining in the air-supplementing enthalpy-increasing device, so that when the air-supplementing enthalpy-increasing device is turned on again, the compressor can be prevented from being impacted by a large amount of liquid refrigerant.
In addition, the air-conditioning air cylinder further provided on the basis of the technical scheme of the invention has the technical effects of the air-supplementing enthalpy-increasing device due to the adoption of the air-supplementing enthalpy-increasing device.
Drawings
Preferred embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein:
fig. 1 is a first schematic diagram of an air conditioning system according to a first embodiment of the present invention;
FIG. 2 is a second schematic diagram of an air conditioning system according to a first embodiment of the present invention;
FIG. 3 is a first schematic diagram of an air conditioning system according to a second embodiment of the present invention;
FIG. 4 is a second schematic diagram of an air conditioning system according to a second embodiment of the present invention;
fig. 5 is a third schematic view of an air conditioning system according to a second embodiment of the present invention;
fig. 6 is a fourth schematic view of an air conditioning system according to a second embodiment of the present invention.
Detailed Description
First, it should be understood by those skilled in the art that the embodiments described below are merely for explaining technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention provides an air-supplementing enthalpy-increasing device for an air-conditioning system and the air-conditioning system, aiming at automatically unloading and depressurizing the refrigerant reserved in the air-supplementing enthalpy-increasing device through a capillary tube which is connected in parallel with a first electromagnetic valve after the air-conditioning system is powered off, so that the condition that the compressor is impacted by a large amount of liquid refrigerant can be avoided when the air-supplementing enthalpy-increasing device is powered off again.
Specifically, the air-supplementing enthalpy-increasing device comprises an economizer, an electronic expansion valve, a first electromagnetic valve and a capillary tube, wherein a main loop of the economizer is connected in series with a liquid pipe connecting a condenser and an indoor unit, an inlet end of an auxiliary loop of the economizer is communicated with the liquid pipe through a first pipeline, an outlet end of the auxiliary loop of the economizer is communicated with an air supplementing port of a compressor through a second pipeline, the electronic expansion valve is arranged on the first pipeline, the first electromagnetic valve is arranged on the second pipeline, and the capillary tube and the first electromagnetic valve are arranged in parallel. When the compressor needs to be supplemented with air and enthalpy, the first electromagnetic valve and the electronic expansion valve are connected.
Preferably, the air-supplementing enthalpy-increasing device further comprises a second electromagnetic valve, the outlet end of the auxiliary loop of the economizer is further communicated with the air inlet of the gas-liquid separator through a third pipeline, and the second electromagnetic valve is arranged on the third pipeline. When the discharge temperature of the compressor is too high, the second electromagnetic valve and the electronic expansion valve can be communicated.
It should be noted that the air-supplying enthalpy-increasing device can be applied to various air-conditioning systems. The technical solution of the present invention is explained in detail below with reference to two specific examples.
Example one
As shown in fig. 1 and 2, the air conditioning system includes a compressor 1, a four-way valve 2, a condenser 3, an indoor unit 4, a gas-liquid separator 5 and an air-supplying enthalpy-increasing device, wherein a first port a of the four-way valve 2 is communicated with an exhaust port 11 of the compressor 1, a second port b of the four-way valve 2 is communicated with one end of the condenser 3, a third port c of the four-way valve 2 is communicated with an air inlet 51 of the gas-liquid separator 5, a fourth port d of the four-way valve 2 is communicated with one end of an evaporator (not shown in the figure) of the indoor unit 4, and the other end of the condenser 3 is communicated with the other.
The air-supplementing enthalpy-increasing device comprises an economizer 6, an electronic expansion valve 91, a first electromagnetic valve 92, a second electromagnetic valve 93 and a capillary tube 94, wherein a main loop of the economizer 6 is connected on a liquid pipe 71 in series, an inlet end of an auxiliary loop of the economizer 6 is communicated with the liquid pipe 71 through a first pipeline 81, an outlet end of the auxiliary loop of the economizer 6 is respectively communicated with an air supplementing port 12 of the compressor 1 and an air inlet 51 of the gas-liquid separator 5 through a second pipeline 82 and a third pipeline 83, the electronic expansion valve 91 is arranged on the first pipeline 81, the first electromagnetic valve 92 is arranged on the second pipeline 82, the second electromagnetic valve 93 is arranged on the third pipeline 83, and the capillary tube 94 is connected with the first electromagnetic valve 92 in parallel.
When the compressor 1 needs to be compensated and enthalpy-increased, the electronic expansion valve 91 and the first solenoid valve 92 can be both in the on state, when the exhaust temperature of the compressor 1 is too high, the electronic expansion valve 91 and the second solenoid valve 93 can be both in the on state, and when the exhaust temperature of the compressor 1 is too high and enthalpy-increased for the compressor 1 is needed, the electronic expansion valve 91, the first solenoid valve 92 and the second solenoid valve 93 can be all in the on state.
Fig. 1 shows a refrigeration cycle mode, in which when the discharge temperature of the compressor 1 is too high and it is also necessary to supplement air and increase enthalpy to the compressor 1, the electronic expansion valve 91, the first solenoid valve 92, and the second solenoid valve 93 are all in an on state. The compressor 1 compresses the refrigerant into high-temperature high-pressure gas, the gas is discharged through the exhaust port 11, the gas refrigerant discharged from the exhaust port 11 reaches the condenser 3 through the four-way valve 2, the gas refrigerant passes through the condenser 3 and becomes liquid, the liquid refrigerant enters the main loop of the economizer 6 along the liquid pipe 71, the liquid refrigerant flowing out of the main loop of the economizer 6 is divided into two paths, one path of the liquid refrigerant flows into the evaporator of the indoor unit 4, the liquid refrigerant is evaporated and absorbs heat in the evaporator of the indoor unit 4 and becomes high-temperature gas, the high-temperature gas refrigerant passes through the four-way valve 2 and reaches the air inlet 51 of the gas-liquid separator 5, the other path of the liquid refrigerant is throttled and decompressed through the electronic expansion valve 91 and enters the auxiliary loop of the economizer 6, the heat exchange with the refrigerant in the main loop in the economizer 6 is changed into, one path of the gas-liquid mixed refrigerant reaches the gas inlet 51 of the gas-liquid separator 5 after passing through the second electromagnetic valve 93 and is mixed with the high-temperature gas refrigerant flowing out of the evaporator of the indoor unit 4, so that the exhaust temperature of the compressor 1 can be indirectly reduced, and the other path of the gas-liquid mixed refrigerant reaches the gas supplementing port 12 of the compressor 1 after passing through the first electromagnetic valve 92, so that the gas supplementing and enthalpy increasing for the compressor 1 are completed. After the air conditioning system is powered off, the electronic expansion valve 91, the first electromagnetic valve 92 and the third electromagnetic valve 93 are all in an off state, and the capillary tube 94 can automatically unload and reduce the pressure of the refrigerant reserved in the air-supplementing enthalpy-increasing device, so that when the air-supplementing enthalpy-increasing device is opened again, the situation that the compressor 1 is impacted by a large amount of liquid refrigerant can be avoided.
Fig. 2 shows a heating cycle mode in which both the electronic expansion valve 91 and the first solenoid valve 92 are in an on state when it is necessary to supplement air and increase enthalpy to the compressor 1. The compressor 1 compresses the refrigerant into high-temperature and high-pressure gas, the gas is discharged through the exhaust port 11, the gas refrigerant discharged from the exhaust port 11 reaches the evaporator of the indoor unit 4 after passing through the four-way valve 2, the gas refrigerant is changed into liquid after passing through the evaporator, the liquid refrigerant is divided into two paths, one path of liquid refrigerant directly enters a main loop of the economizer 6 along a liquid pipe 71, the liquid refrigerant flowing out of the main loop flows through the condenser 3, the four-way valve 2 and the gas-liquid separator 5 in sequence and flows back to the compressor 1, the other path of liquid refrigerant enters an auxiliary loop of the economizer 6 after being throttled and depressurized by the electronic expansion valve 91, the refrigerant in the main loop exchanges heat in the economizer 6 to become gas-liquid mixed refrigerant, and the gas-liquid mixed refrigerant in the auxiliary loop passes through the first electromagnetic valve 92 and then reaches the gas supplementing port 12 of the compressor 1, so that the gas supplementing and enthalpy increasing of the compressor 1 are completed. Similarly, after the air conditioning system is powered off, the electronic expansion valve 91 and the first electromagnetic valve 92 are both in an off state, and the capillary tube 94 can automatically unload and reduce the pressure of the refrigerant retained in the air-supplying enthalpy-increasing device, so that when the air-supplying enthalpy-increasing device is restarted, the condition that the compressor 1 is impacted by a large amount of liquid refrigerant can be avoided.
Example two
As shown in fig. 3 to 6, the air conditioning system includes a compressor 1, a first four-way valve 2A, a second four-way valve 2B, a condenser 3, a first indoor unit 4A, a second indoor unit 4B, a gas-liquid separator 5 and an air-supplying enthalpy-increasing device.
The first indoor unit 4A includes a first valve box 41, the operation mode of the first indoor unit 4A can be switched by the first valve box 41, a first port a1 of the first valve box 41 is communicated with one end of an evaporator of the first indoor unit 4A, a second port a2 of the first valve box 41 is communicated with the other end of the evaporator of the first indoor unit 4A, a liquid pipe port A3 of the first valve box 41 is communicated with a first port a1 of the first valve box 41, a first four-way regulating valve 411 is disposed in the first valve box 41, a first port a of the first four-way regulating valve 411 is communicated with a high-pressure port a5 of the first valve box 41, a second port b of the first four-way regulating valve 411 is in a disconnected state, a third port c of the first four-way regulating valve 411 is communicated with a low-pressure port a4 of the first valve box 41, and a fourth port d of the first four-way regulating valve 411 is communicated with a2 of the first valve box 41.
The second indoor unit 4B includes a second valve box 42, the operation mode of the second indoor unit 4B can be switched by the second valve box 42, a first port B1 of the second valve box 42 is communicated with one end of the evaporator of the second indoor unit 4B, a second port B2 of the second valve box 42 is communicated with the other end of the evaporator of the second indoor unit 4B, a liquid pipe port B3 of the second valve box 42 is communicated with a first port B1 of the second valve box 42, a second four-way regulating valve 421 is disposed in the second valve box 42, a first port a of the second four-way regulating valve 421 is communicated with a high-pressure port B5 of the second valve box 42, a second port B of the second four-way regulating valve 421 is in a disconnected state, a third port c of the second four-way regulating valve 421 is communicated with a low-pressure port B4 of the second valve box 42, and a fourth port d of the second four-way regulating valve 421 is communicated with a second port B2 of the second valve box 42.
A first port a of the first four-way valve 2A is communicated with the exhaust port 11 of the compressor 1, a second port b of the first four-way valve 2A is communicated with one end of the condenser 3, a third port c of the first four-way valve 2A is communicated with the air inlet 51 of the gas-liquid separator 5, and a fourth port d of the first four-way valve 2A is in a disconnected state.
A first port a of the second four-way valve 2B is communicated with the exhaust port 11 of the compressor 1, a second port B of the second four-way valve 2B is in a disconnected state, a third port c of the second four-way valve 2B is communicated with the air inlet 51 of the gas-liquid separator 5, a fourth port d of the second four-way valve 2B is respectively communicated with a high-pressure port a5 of the first valve box 41 and a high-pressure port B5 of the second valve box 42 through a high-pressure air pipe 72, the other end of the condenser 3 is respectively communicated with a liquid pipe port A3 of the first valve box 41 and a liquid pipe port B3 of the second valve box 42, and both the low-pressure port a4 of the first valve box 41 and the low-pressure port B4 of the second valve box 42 are communicated with the air inlet 51 of the gas-liquid separator 5.
The air-supplementing enthalpy-increasing device comprises an economizer 6, an electronic expansion valve 91, a first electromagnetic valve 92, a second electromagnetic valve 93 and a capillary tube 94, wherein a main loop of the economizer 6 is connected on a liquid pipe 71 in series, an inlet end of an auxiliary loop of the economizer 6 is communicated with the liquid pipe 71 through a first pipeline 81, an outlet end of the auxiliary loop of the economizer 6 is respectively communicated with an air supplementing port 12 of the compressor 1 and an air inlet 51 of the gas-liquid separator 5 through a second pipeline 82 and a third pipeline 83, the electronic expansion valve 91 is arranged on the first pipeline 81, the first electromagnetic valve 92 is arranged on the second pipeline 82, the second electromagnetic valve 93 is arranged on the third pipeline 83, and the capillary tube 94 is connected with the first electromagnetic valve 92 in parallel.
It should be noted that, as in the first embodiment, when it is necessary to supplement air and increase enthalpy to the compressor 1, both the electronic expansion valve 91 and the first solenoid valve 92 may be in the on state, and when the discharge temperature of the compressor 1 is too high, and when it is also necessary to supplement air and increase enthalpy to the compressor 1, all the electronic expansion valve 91, the first solenoid valve 92, and the second solenoid valve 93 may be in the on state.
In the air conditioning system of the present embodiment, the first indoor unit 4A and the second indoor unit 4B may simultaneously execute a cooling mode or a heating mode, or may execute one of the cooling mode and the heating mode, as shown in fig. 3, both the first indoor unit 4A and the second indoor unit 4B execute the cooling mode, and arrows indicate the flow direction of the refrigerant, as shown in fig. 4, after the second four-way valve 2B and the second adjusting four-way valve 421 are adjusted, the second indoor unit 4B is switched from the cooling mode to the heating mode, the first indoor unit 4A is still in the cooling mode, the liquid refrigerant flowing out from the evaporator of the second indoor unit 4B and the liquid refrigerant flowing through the condenser 3 are merged and then flow into the first indoor unit 4A, and the arrows indicate the flow direction of the refrigerant; as shown in fig. 5, the first indoor unit 4A and the second indoor unit 4B both perform a heating mode, arrows indicate the flow direction of the refrigerant, as shown in fig. 6, after the first four-way valve 2A and the first adjusting four-way valve 411 are adjusted, the first indoor unit 4A is switched from the heating mode to the cooling mode, the second indoor unit 4B is still in the heating mode, the liquid refrigerant flowing out of the evaporator of the second indoor unit 4B is divided into two paths, one of the two paths flows back to the compressor 1 after sequentially passing through the economizer 6, the condenser 3, the first four-way valve 2A, and the gas-liquid separator 5, the other path flows into the first indoor unit 4A, and the refrigerant flowing out of the first indoor unit 4A flows back to the compressor 1 after passing through the gas-liquid separator 5, and the arrows indicate the flow direction of the.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. The utility model provides an tonifying qi enthalpy-increasing device for air conditioning system, a serial communication port, air conditioning system is including compressor, condenser, indoor set and the vapour and liquid separator that links to each other, tonifying qi enthalpy-increasing device includes economic ware, electronic expansion valve, first solenoid valve and capillary, the major loop of economic ware is established ties and is being connected the condenser with on the liquid pipe of indoor set, the entry end of the auxiliary loop of economic ware through first pipeline with liquid pipe intercommunication, the exit end of the auxiliary loop of economic ware pass through the second pipeline with the tonifying qi mouth intercommunication of compressor, electronic expansion valve sets up on the first pipeline, first solenoid valve sets up on the second pipeline, the capillary with the parallelly connected setting of first solenoid valve.
2. The vapor-supplementing enthalpy-increasing device according to claim 1, further comprising a second solenoid valve, an outlet end of the auxiliary circuit of the economizer further communicating with an inlet port of the vapor-liquid separator through a third conduit, the second solenoid valve being disposed on the third conduit.
3. An air conditioning system, characterized in that it comprises a vapor-supplementing enthalpy-increasing device according to claim 1 or 2.
4. The air conditioning system according to claim 3, further comprising a four-way valve, wherein a first port of the four-way valve is communicated with an exhaust port of the compressor, a second port of the four-way valve is communicated with the condenser, a third port of the four-way valve is communicated with an air inlet of the gas-liquid separator, and a fourth port of the four-way valve is communicated with the indoor unit.
5. The air conditioning system of claim 3, further comprising a first four-way valve and a second four-way valve, the indoor unit comprises a first indoor unit and a second indoor unit, a first interface of the first four-way valve is communicated with an exhaust port of the compressor, the second interface of the first four-way valve is communicated with the condenser, the third interface of the first four-way valve is communicated with the air inlet of the gas-liquid separator, the fourth interface of the first four-way valve is in a disconnected state, the first interface of the second four-way valve is communicated with the exhaust port of the compressor, the second interface of the second four-way valve is in a disconnected state, the third interface of the second four-way valve is communicated with the air inlet of the gas-liquid separator, and a fourth interface of the second four-way valve is respectively communicated with the first indoor unit and the second indoor unit through a high-pressure air pipe.
6. The air conditioning system as claimed in claim 5, wherein the first indoor unit includes a first valve box, and the fourth port of the second four-way valve is connected to the first valve box through a high pressure air pipe.
7. The air conditioning system according to claim 6, wherein the first port of the first valve box communicates with one end of an evaporator of the first indoor unit, the second interface of the first valve box is communicated with the other end of the evaporator of the first indoor unit, the liquid pipe interface of the first valve box is communicated with the first interface of the first valve box, a first regulating four-way valve is arranged in the first valve box, a first interface of the first regulating four-way valve is communicated with a high-pressure interface of the first valve box, the second interface of the first adjusting four-way valve is in a disconnected state, the third interface of the first adjusting four-way valve is communicated with the low-pressure interface of the first valve box, and a fourth interface of the first adjusting four-way valve is communicated with the second interface of the first valve box, and a fourth interface of the second four-way valve is communicated with the high-pressure interface of the first valve box through a high-pressure air pipe.
8. The air conditioning system as claimed in claim 5, wherein the second indoor unit includes a second valve box, and a fourth port of the second four-way valve communicates with the second valve box through a high pressure air pipe.
9. The air conditioning system according to claim 8, wherein the first port of the second valve box communicates with one end of an evaporator of the second indoor unit, the second interface of the second valve box is communicated with the other end of the evaporator of the second indoor unit, the liquid pipe interface of the second valve box is communicated with the first interface of the second valve box, a second regulating four-way valve is arranged in the second valve box, a first interface of the second regulating four-way valve is communicated with a high-pressure interface of the second valve box, the second interface of the second adjusting four-way valve is in a disconnected state, the third interface of the second adjusting four-way valve is communicated with the low-pressure interface of the second valve box, and a fourth interface of the second adjusting four-way valve is communicated with a second interface of the second valve box, and a fourth interface of the second four-way valve is communicated with a high-pressure interface of the second valve box through a high-pressure air pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157485.4A CN112833481A (en) | 2019-11-22 | 2019-11-22 | Air supplementing and enthalpy increasing device for air conditioning system and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157485.4A CN112833481A (en) | 2019-11-22 | 2019-11-22 | Air supplementing and enthalpy increasing device for air conditioning system and air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112833481A true CN112833481A (en) | 2021-05-25 |
Family
ID=75922385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911157485.4A Pending CN112833481A (en) | 2019-11-22 | 2019-11-22 | Air supplementing and enthalpy increasing device for air conditioning system and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112833481A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834140A (en) * | 2021-08-31 | 2021-12-24 | 青岛海尔空调电子有限公司 | Control method and system of air conditioner |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508076U (en) * | 2009-07-07 | 2010-06-16 | 广州中车轨道交通装备股份有限公司 | Air source low-temperature heat pump unit of railway vehicle |
| JP2011080633A (en) * | 2009-10-05 | 2011-04-21 | Panasonic Corp | Refrigerating cycle device and hot-water heating device |
| US20130174590A1 (en) * | 2012-01-09 | 2013-07-11 | Thermo King Corporation | Economizer combined with a heat of compression system |
| CN104154673A (en) * | 2014-09-01 | 2014-11-19 | 广东志高暖通设备股份有限公司 | Refrigeration method and system for three-pipe heat recovery varied refrigerant volume air-conditioning system |
| CN104197582A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Multi-connection air conditioning system |
| CN104613665A (en) * | 2015-02-02 | 2015-05-13 | 珠海格力电器股份有限公司 | Heat pump air conditioner system |
| CN104896793A (en) * | 2014-03-06 | 2015-09-09 | 珠海格力电器股份有限公司 | Air conditioning hot water heater system |
| CN106766293A (en) * | 2016-12-02 | 2017-05-31 | 珠海格力电器股份有限公司 | A kind of air-conditioning system with enthalpy increased through vapor injection and control method thereof for preventing refrigerant return |
-
2019
- 2019-11-22 CN CN201911157485.4A patent/CN112833481A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508076U (en) * | 2009-07-07 | 2010-06-16 | 广州中车轨道交通装备股份有限公司 | Air source low-temperature heat pump unit of railway vehicle |
| JP2011080633A (en) * | 2009-10-05 | 2011-04-21 | Panasonic Corp | Refrigerating cycle device and hot-water heating device |
| US20130174590A1 (en) * | 2012-01-09 | 2013-07-11 | Thermo King Corporation | Economizer combined with a heat of compression system |
| CN104896793A (en) * | 2014-03-06 | 2015-09-09 | 珠海格力电器股份有限公司 | Air conditioning hot water heater system |
| CN104154673A (en) * | 2014-09-01 | 2014-11-19 | 广东志高暖通设备股份有限公司 | Refrigeration method and system for three-pipe heat recovery varied refrigerant volume air-conditioning system |
| CN104197582A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Multi-connection air conditioning system |
| CN104613665A (en) * | 2015-02-02 | 2015-05-13 | 珠海格力电器股份有限公司 | Heat pump air conditioner system |
| CN106766293A (en) * | 2016-12-02 | 2017-05-31 | 珠海格力电器股份有限公司 | A kind of air-conditioning system with enthalpy increased through vapor injection and control method thereof for preventing refrigerant return |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834140A (en) * | 2021-08-31 | 2021-12-24 | 青岛海尔空调电子有限公司 | Control method and system of air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6223469B2 (en) | Air conditioner | |
| JP3575484B2 (en) | Heat source unit of air conditioner and air conditioner | |
| US20180031287A1 (en) | Refrigeration cycle system | |
| CN202675719U (en) | Air-cooled heat pump air conditioner | |
| CN113614470B (en) | Air conditioning equipment | |
| CN110260569B (en) | Heat pump unit, air conditioning system and regulation and control method thereof | |
| CN114110739B (en) | One-driving-multiple refrigerating and heating air conditioner | |
| KR100822432B1 (en) | Air conditioner having auxiliary exchanger | |
| EP2896911A1 (en) | Air conditioning apparatus | |
| CN211119734U (en) | Four-pipe system central air-conditioning system | |
| CN112833481A (en) | Air supplementing and enthalpy increasing device for air conditioning system and air conditioning system | |
| CN211526605U (en) | Air supplementing and enthalpy increasing device for air conditioning system and air conditioning system | |
| CN106839211B (en) | Multi-split air conditioner and control method thereof in heating mode operation | |
| CN215951838U (en) | Refrigerating system and household appliance | |
| CN213778222U (en) | Air conditioning system | |
| CN213272814U (en) | Multi-connected air conditioning system | |
| KR20090021593A (en) | Multi air conditioner improved air heating efficiency | |
| CN211625627U (en) | Air conditioner outdoor unit and air conditioner | |
| CN107940796B (en) | Multi-split air conditioner system and starting control method of outdoor unit thereof | |
| CN112833514B (en) | Air supplementing and enthalpy increasing control method for air conditioning system and air conditioning system | |
| KR101160351B1 (en) | Multi air conditioner and control method thereof | |
| CN210624990U (en) | Cold-warm type heat recovery system | |
| KR20040094101A (en) | By-pass device with variable flow rate of multi air-conditioner system | |
| CN210165600U (en) | Single-cooling type heat recovery system | |
| CN219454305U (en) | Air-supplementing enthalpy-increasing air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210525 |