CN111503928A - Air conditioning unit capable of effectively improving energy utilization rate and control method and device thereof - Google Patents
Air conditioning unit capable of effectively improving energy utilization rate and control method and device thereof Download PDFInfo
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- CN111503928A CN111503928A CN202010415090.6A CN202010415090A CN111503928A CN 111503928 A CN111503928 A CN 111503928A CN 202010415090 A CN202010415090 A CN 202010415090A CN 111503928 A CN111503928 A CN 111503928A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005338 heat storage Methods 0.000 claims abstract description 56
- 238000009825 accumulation Methods 0.000 claims abstract description 13
- 239000003507 refrigerant Substances 0.000 claims description 45
- 238000010257 thawing Methods 0.000 claims description 42
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- 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
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- 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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- 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
- F24F11/64—Electronic processing using pre-stored data
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- 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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioning unit for effectively improving energy utilization rate and a control method and a control device thereof, wherein the air conditioning unit comprises: the compressor, the four-way valve, the outdoor heat exchanger, the first throttling element and the indoor heat exchanger are sequentially connected; heat accumulation branch road, one end is connected with the cross valve, and the other end is connected with outdoor heat exchanger, includes: and the heat storage medium of the heat storage device is positioned at the periphery of the compressor and is used for absorbing the waste heat generated by the compressor. The invention solves the problem of low energy utilization rate in the prior art, improves the energy utilization rate and achieves the effects of energy conservation and emission reduction.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioning unit capable of effectively improving energy utilization rate and a control method and device thereof.
Background
In an air conditioning system, a compressor generates more waste heat in the operation process, and the part of heat is generally directly discharged to the outside and is not utilized, so that the energy waste is caused. If the waste heat can be collected and utilized, the effects of energy conservation and emission reduction can be achieved.
Aiming at the problem of low energy utilization rate in the related technology, no effective solution is provided at present.
Disclosure of Invention
The invention provides an air conditioning unit capable of effectively improving energy utilization rate and a control method and device thereof, and aims to at least solve the problem of low energy utilization rate in the prior art.
To solve the above technical problem, according to an aspect of an embodiment of the present invention, there is provided an air conditioning unit including: the system comprises a compressor (1), a four-way valve (2), an outdoor heat exchanger (3), a first throttling element (4) and an indoor heat exchanger (5) which are connected in sequence; heat accumulation branch road, one end is connected with cross valve (2), and the other end is connected with outdoor heat exchanger (3), includes: and the heat storage medium of the heat storage device (11) is positioned at the periphery of the compressor (1) and is used for absorbing the residual heat generated by the compressor (1).
Further, the air conditioning unit further includes: and one end of the bypass branch is connected with an exhaust port of the compressor (1), and the other end of the bypass branch is connected with a pipeline between the first throttling element (4) and the outdoor heat exchanger (3) and is used for introducing part of refrigerant discharged by the compressor (1) into the outdoor heat exchanger (3) for defrosting in the heating mode.
Further, the bypass branch includes: and the electromagnetic valve (6) is used for controlling the refrigerant flow of the bypass branch.
Further, the bypass branch further comprises: and a second throttling element (7) located between the exhaust port of the compressor (1) and the solenoid valve (6).
Further, the heat accumulation branch also comprises: the inlet of the one-way valve (8) is connected with the heat storage device (11), and the outlet of the one-way valve (8) is connected with the four-way valve (2).
Furthermore, the heat storage branch is connected with the four-way valve (2) and the outdoor heat exchanger (3) through a three-way valve (9); the three-way valve (9) is used for connecting the four-way valve (2) to be communicated with the outdoor heat exchanger (3) in the cooling mode and communicating the heat storage device (11) with the outdoor heat exchanger (3) in the heating mode.
Further, the heat accumulation branch also comprises: a third throttling element (10) located between the thermal storage means (11) and the three-way valve (9).
According to another aspect of the embodiments of the present invention, there is provided an air conditioning unit control method, applied to the air conditioning unit, including: when the air conditioning unit is in a heating mode, detecting whether the air conditioning unit needs defrosting; if the air conditioning unit needs defrosting, part of the refrigerant discharged by the compressor (1) is introduced into the outdoor heat exchanger (3) through the bypass branch for defrosting; the defrosted refrigerant is heated by the heat storage device (11) and then introduced into the compressor (1).
Further, the refrigerant after defrosting is heated by a heat storage device (11), and the refrigerant heating device comprises: the conduction direction of the three-way valve (9) is controlled to enable the heat storage device (11) to be communicated with the outdoor heat exchanger (3), and the defrosted refrigerant flows through the heat storage device (11).
Further, still include: detecting the indoor environment temperature; the opening of the electromagnetic valve (6) is controlled according to the indoor environment temperature, and the refrigerant flow of the bypass branch is adjusted.
Further, controlling the opening degree of the electromagnetic valve (6) according to the indoor ambient temperature includes: comparing the indoor environment temperature with a preset temperature; if the indoor environment temperature is higher than the preset temperature, the opening degree of the electromagnetic valve (6) is controlled to be reduced; if the indoor environment temperature is lower than the preset temperature, the opening degree of the electromagnetic valve (6) is controlled to be increased; if the indoor environment temperature is equal to the preset temperature, the opening degree of the control electromagnetic valve (6) is kept unchanged.
Further, still include: controlling the first throttling element (4) to be in a full-open state.
According to still another aspect of an embodiment of the present invention, there is provided an air conditioning unit control apparatus including: the detection module is used for detecting whether the air conditioning unit needs defrosting when the air conditioning unit is in a heating mode; the defrosting module is used for introducing part of refrigerant discharged by the compressor (1) into the outdoor heat exchanger (3) through the bypass branch for defrosting if the air conditioning unit needs defrosting; and the heating module is used for heating the defrosted refrigerant through the heat storage device (11) and then introducing the defrosted refrigerant into the compressor (1).
According to yet another aspect of an embodiment of the present invention, there is provided a storage medium containing computer-executable instructions for performing the air conditioning unit control method as described above when executed by a computer processor.
The invention provides an air conditioning unit capable of effectively improving the energy utilization rate, wherein a heat storage device is arranged at a compressor, waste heat generated by the compressor is absorbed by the heat storage device, and the waste heat collected by the heat storage device can be reused. Through above-mentioned heat accumulation device, store waste heat and release when needing, improved energy utilization and rateed, reach energy saving and emission reduction's effect, effectively solved the problem that energy utilization is low among the prior art.
Drawings
Fig. 1 is a schematic view of an alternative configuration of an air conditioning assembly according to an embodiment of the present invention;
FIG. 2 is an alternative flow chart of an air conditioning unit control method according to an embodiment of the present invention; and
fig. 3 is a block diagram of an alternative configuration of an air conditioning unit control apparatus according to an embodiment of the present invention.
Description of reference numerals:
1. a compressor; 2. a four-way valve; 3. an outdoor heat exchanger; 4. a first throttling element; 5. an indoor heat exchanger; 6. an electromagnetic valve; 7. a second throttling element; 8. a one-way valve; 9. a three-way valve; 10. a third throttling element; 11. a thermal storage device.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In a preferred embodiment 1 of the present invention, an air conditioning unit is provided, and specifically, fig. 1 shows an alternative structural schematic diagram of the air conditioning unit, as shown in fig. 1, the air conditioning unit includes:
the system comprises a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, a first throttling element 4 and an indoor heat exchanger 5 which are connected in sequence;
heat accumulation branch road, one end is connected with cross valve 2, and the other end is connected with outdoor heat exchanger 3, includes:
and the heat storage medium of the heat storage device 11 is positioned at the periphery of the compressor 1 and is used for absorbing the residual heat generated by the compressor 1.
In the above embodiment, a scheme for effectively improving the energy utilization rate of the air conditioning unit is provided, in which a heat storage device is disposed at the compressor, and waste heat generated by the compressor is absorbed by the heat storage device, so that the waste heat collected by the heat storage device can be reused. Through above-mentioned heat accumulation device, store waste heat and release when needing, improved energy utilization, have energy saving and emission reduction's effect, effectively solved the problem that energy utilization is low among the prior art.
Meanwhile, the heat storage medium of the heat storage device 11 in the present invention is located at the periphery of the compressor 1, and preferably, the heat storage medium is directly surrounded on the outer side of the compressor 1, so that the heat absorption efficiency is improved, and the quality of the obtained heat source is higher.
The above air conditioning unit further includes: and one end of the bypass branch is connected with an exhaust port of the compressor 1, and the other end of the bypass branch is connected with a pipeline between the first throttling element 4 and the outdoor heat exchanger 3, and is used for introducing part of refrigerant discharged by the compressor 1 into the outdoor heat exchanger 3 for defrosting in the heating mode.
In general, an air conditioning system cannot perform heating when defrosting, and needs to be switched to a cooling mode to defrost an outdoor heat exchanger. The arrangement of the bypass branch can defrost the outdoor heat exchanger under the condition that the system does not switch the heating operation mode, so that the indoor heat working condition is more stable.
The bypass branch includes: and the electromagnetic valve 6 is used for controlling the refrigerant flow of the bypass branch. And a second restriction element 7 located between the discharge port of the compressor 1 and the solenoid valve 6.
The heat accumulation branch comprises: and the inlet of the one-way valve 8 is connected with the heat storage device 11, and the outlet of the one-way valve 8 is connected with the four-way valve 2. The heat storage branch is connected with the four-way valve 2 and the outdoor heat exchanger 3 through a three-way valve 9; the three-way valve 9 is used to connect the four-way valve 2 to communicate with the outdoor heat exchanger 3 in the cooling mode and to communicate the heat storage device 11 with the outdoor heat exchanger 3 in the heating mode. Further, the heat accumulation branch also comprises: a third throttle element 10 is located between 11 and the three-way valve 9.
Fig. 1 also shows a refrigerant flow path and a defrosting refrigerant flow path in the heating mode, and as shown in fig. 1, when defrosting of the outdoor heat exchanger 3 is required in the heating mode, the flow path of the three-way valve 9 is turned downward (downward in fig. 1), the electromagnetic valve 6 is opened, and the first throttling element 4 is fully opened (i.e., not throttled). The first restriction element 4 may be an electronic expansion valve. After the refrigerant comes out from the exhaust port of the compressor 1, the refrigerant is divided into two paths, one path circulates according to a heating loop, the other path throttles firstly, then passes through the electromagnetic valve 6 and then is converged with the refrigerant flowing through the indoor heat exchanger 5, and then defrosting is carried out on the outdoor heat exchanger 3. At this time, the refrigerant having a high temperature can obtain a good defrosting effect, and the refrigerant flowing through the outdoor heat exchanger 3 passes through the three-way valve 9, flows downward, is throttled by the third throttling element 10, absorbs heat in the heat storage device 11, and returns to the compressor 1, thereby completing the circulation.
The opening degree of the first throttling element 4 is fully opened, defrosting can be completed without bypassing more heat, and therefore indoor comfort is better. The third throttling element 10 throttles and then enters the compressor 1 through the heat storage device 11 and the four-way valve 2, so that the phenomenon that the temperature of the defrosted refrigerant is too low to enter the compressor 1 is avoided. By means of the scheme, the defrosting is completed, and meanwhile, the indoor comfort is effectively improved.
Meanwhile, the opening degree of the electromagnetic valve 6 can be controlled in the defrosting process, so that the defrosting speed is accelerated. The specific control can be regulated and controlled through the change rate of the indoor environment temperature bulb.
Fig. 1 also shows a flow path of a refrigerant in a refrigeration mode, as shown in fig. 1, a three-way valve 9 in the refrigeration mode is in a horizontal direction (horizontal direction in fig. 1), a solenoid valve 6 is kept closed, high-temperature and high-pressure vapor is firstly discharged from the compressor 1, flows through a four-way valve 2, is subjected to heat exchange and cooling by an outdoor heat exchanger 3, is throttled into a low-temperature and low-pressure gas-liquid two-phase state by a first throttling element 4, is evaporated and absorbs heat by an indoor heat exchanger 5, and finally flows back to the compressor 1 to complete circulation. The heat storage device 11, which surrounds the outside of the compressor 1 at this time, absorbs the waste heat generated by the compressor 1, and a water line may be added thereto for producing domestic hot water.
Example 2
Based on the air conditioning unit provided in the foregoing embodiment 1, in a preferred embodiment 2 of the present invention, there is further provided an air conditioning unit control method applied to the air conditioning unit, specifically, fig. 2 shows an optional flowchart of the method, and as shown in fig. 2, the method includes the following steps S202 to S206:
s202: when the air conditioning unit is in a heating mode, detecting whether the air conditioning unit needs defrosting;
s204: if the air conditioning unit needs defrosting, part of the refrigerant discharged by the compressor 1 is introduced into the outdoor heat exchanger 3 through the bypass branch for defrosting;
s206: the defrosted refrigerant is heated by the heat storage device 11 and then introduced into the compressor 1.
In the above embodiment, a scheme for effectively improving the energy utilization rate of the air conditioning unit is provided, in which a heat storage device is disposed at the compressor, and waste heat generated by the compressor is absorbed by the heat storage device, so that the waste heat collected by the heat storage device can be reused. Through above-mentioned heat accumulation device, store waste heat and release when needing, improved energy utilization, have energy saving and emission reduction's effect, effectively solved the problem that energy utilization is low among the prior art.
As shown in fig. 1, the heat storage branch is connected with the four-way valve 2 and the outdoor heat exchanger 3 through a three-way valve 9; the refrigerant after defrosting is heated by the heat storage device 11, and the refrigerant heating device includes: the conduction direction of the three-way valve 9 is controlled to communicate the heat storage device 11 with the outdoor heat exchanger 3, and the defrosted refrigerant flows through the heat storage device 11.
The opening degree of the electromagnetic valve 6 can be controlled in the defrosting process, so that the defrosting speed is accelerated. The specific control can be regulated and controlled through the change rate of the indoor environment temperature bulb. Optionally, the method includes: detecting the indoor environment temperature; the opening of the electromagnetic valve 6 is controlled according to the indoor environment temperature, and the refrigerant flow of the bypass branch is adjusted. The opening degree of the electromagnetic valve 6 is controlled according to the indoor ambient temperature, and the opening degree control method comprises the following steps: comparing the indoor environment temperature with a preset temperature; if the indoor environment temperature is higher than the preset temperature, the opening degree of the electromagnetic valve 6 is controlled to be reduced; if the indoor environment temperature is lower than the preset temperature, the opening degree of the electromagnetic valve 6 is controlled to be increased; if the indoor ambient temperature is equal to the preset temperature, the opening degree of the control solenoid valve 6 is kept constant.
In addition, the first throttling element 4 is controlled to be in a fully open state during defrosting. The opening degree of the first throttling element 4 is fully opened, defrosting can be completed without bypassing more heat, and therefore indoor comfort is better. The refrigerant is throttled by the third throttling element 10 and then enters the compressor 1 through the heat storage device 11 and the four-way valve 2, so that the condition that the temperature of the defrosted refrigerant is too low to enter the compressor 1 is avoided. By means of the scheme, the defrosting is completed, and meanwhile, the indoor comfort is effectively improved.
Example 3
Based on the air conditioning unit control method provided in the above embodiment 2, there is also provided an air conditioning unit control device in a preferred embodiment 3 of the present invention. Specifically, fig. 3 shows an alternative structural block diagram of the apparatus, and as shown in fig. 3, the apparatus includes:
the detection module 302 is configured to detect whether the air conditioning unit needs defrosting when the air conditioning unit is in the heating mode;
the defrosting module 304 is connected with the detection module 302 and is used for introducing part of the refrigerant discharged by the compressor 1 into the outdoor heat exchanger 3 for defrosting through the bypass branch if the air conditioning unit needs defrosting;
and the heating module 306 is connected to the defrosting module 304, and is configured to heat the defrosted refrigerant through the heat storage device 11, and then introduce the defrosted refrigerant into the compressor 1.
In the above embodiment, a scheme for effectively improving the energy utilization rate of the air conditioning unit is provided, in which a heat storage device is disposed at the compressor, and waste heat generated by the compressor is absorbed by the heat storage device, so that the waste heat collected by the heat storage device can be reused. Through above-mentioned heat accumulation device, store waste heat and release when needing, improved energy utilization, have energy saving and emission reduction's effect, effectively solved the problem that energy utilization is low among the prior art.
The heating module 306 is specifically configured to: the conduction direction of the three-way valve 9 is controlled to communicate the heat storage device 11 with the outdoor heat exchanger 3, and the defrosted refrigerant flows through the heat storage device 11.
This device still includes: the temperature detection module is used for detecting the indoor environment temperature; and the adjusting module is used for controlling the opening of the electromagnetic valve 6 according to the indoor environment temperature and adjusting the refrigerant flow of the bypass branch.
The adjustment module includes: the comparison unit is used for comparing the indoor environment temperature with a preset temperature; a first adjusting unit for controlling the opening degree of the electromagnetic valve 6 to be decreased if the indoor ambient temperature is greater than a preset temperature; a second adjusting unit for controlling the opening degree of the electromagnetic valve 6 to increase if the indoor ambient temperature is less than the preset temperature; and a third adjusting unit for controlling the opening degree of the solenoid valve 6 to be maintained if the indoor ambient temperature is equal to the preset temperature.
In addition, the device further comprises: and the throttling element control module is used for controlling the first throttling element 4 to be in a full-open state.
With regard to the apparatus in the above embodiments, the specific manner in which each unit and each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail herein.
Example 4
Based on the air conditioning unit control method provided in embodiment 1 above, there is also provided in a preferred embodiment 4 of the present invention a storage medium containing computer-executable instructions for performing the air conditioning unit control method as described above when executed by a computer processor.
In the above embodiment, a scheme for effectively improving the energy utilization rate of the air conditioning unit is provided, in which a heat storage device is disposed at the compressor, and waste heat generated by the compressor is absorbed by the heat storage device, so that the waste heat collected by the heat storage device can be reused. Through above-mentioned heat accumulation device, store waste heat and release when needing, improved energy utilization, have energy saving and emission reduction's effect, effectively solved the problem that energy utilization is low among the prior art.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (14)
1. An air conditioning assembly, comprising:
the system comprises a compressor (1), a four-way valve (2), an outdoor heat exchanger (3), a first throttling element (4) and an indoor heat exchanger (5) which are connected in sequence;
heat accumulation branch road, one end with cross valve (2) are connected, the other end with outdoor heat exchanger (3) are connected, include:
the heat storage device (11) is located on the periphery of the compressor (1) and used for absorbing residual heat generated by the compressor (1).
2. The air conditioning assembly as set forth in claim 1, further comprising:
and one end of the bypass branch is connected with an exhaust port of the compressor (1), the other end of the bypass branch is connected with a pipeline between the first throttling element (4) and the outdoor heat exchanger (3), and the bypass branch is used for introducing part of refrigerant discharged by the compressor (1) into the outdoor heat exchanger (3) for defrosting in the heating mode.
3. The air conditioning assembly as set forth in claim 2, wherein said bypass branch includes: and the electromagnetic valve (6) is used for controlling the refrigerant flow of the bypass branch.
4. The air conditioning assembly as set forth in claim 3, wherein said bypass branch further includes: a second throttling element (7) located between the discharge of the compressor (1) and the solenoid valve (6).
5. The air conditioning assembly as set forth in claim 1, wherein said thermal storage branch further includes:
the inlet of the one-way valve (8) is connected with the heat storage device (11), and the outlet of the one-way valve (8) is connected with the four-way valve (2).
6. Air conditioning assembly according to claim 1, characterized in that the heat storage branch is connected with the four-way valve (2) and the outdoor heat exchanger (3) by a three-way valve (9); the three-way valve (9) is used for connecting the four-way valve (2) and communicating with the outdoor heat exchanger (3) in a refrigeration mode, and communicating the heat storage device (11) and the outdoor heat exchanger (3) in a heating mode.
7. An air conditioning assembly according to claim 6, wherein the thermal storage branch further comprises:
a third throttling element (10) located between the thermal storage means (11) and the three-way valve (9).
8. An air conditioning unit control method applied to the air conditioning unit according to any one of claims 1 to 7, characterized by comprising:
when the air conditioning unit is in a heating mode, detecting whether the air conditioning unit needs defrosting;
if the air conditioning unit needs defrosting, part of the refrigerant discharged by the compressor (1) is introduced into the outdoor heat exchanger (3) through the bypass branch for defrosting;
the defrosted refrigerant is heated by a heat storage device (11) and then introduced into the compressor (1).
9. The method according to claim 8, wherein heating the defrosted coolant by the heat storage device (11) comprises:
and controlling the conduction direction of the three-way valve (9) to enable the heat storage device (11) to be communicated with the outdoor heat exchanger (3), and enabling the defrosted refrigerant to flow through the heat storage device (11).
10. The method as claimed in claim 8, wherein defrosting a portion of the refrigerant discharged from the compressor (1) into the outdoor heat exchanger (3) through the bypass branch comprises:
detecting the indoor environment temperature;
and controlling the opening of the electromagnetic valve (6) according to the indoor environment temperature, and adjusting the refrigerant flow of the bypass branch.
11. The method according to claim 10, wherein controlling the opening degree of the solenoid valve (6) according to the indoor ambient temperature includes:
comparing the indoor environment temperature with a preset temperature;
if the indoor environment temperature is higher than the preset temperature, controlling the opening degree of the electromagnetic valve (6) to be reduced;
if the indoor environment temperature is lower than the preset temperature, controlling the opening of the electromagnetic valve (6) to increase;
and if the indoor environment temperature is equal to the preset temperature, controlling the opening degree of the electromagnetic valve (6) to be kept unchanged.
12. The method of claim 8, further comprising:
controlling the first throttling element (4) to be in a full-open state.
13. An air conditioning unit control apparatus characterized by comprising:
the detection module is used for detecting whether the air conditioning unit needs defrosting or not when the air conditioning unit is in a heating mode;
the defrosting module is used for introducing part of refrigerant discharged by the compressor (1) into the outdoor heat exchanger (3) through the bypass branch for defrosting if the air conditioning unit needs defrosting;
and the heating module is used for heating the defrosted refrigerant through the heat storage device (11) and then introducing the defrosted refrigerant into the compressor (1).
14. A storage medium containing computer-executable instructions for performing the air conditioning pack control method of any of claims 8 to 12 when executed by a computer processor.
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| CN202010415090.6A CN111503928A (en) | 2020-05-15 | 2020-05-15 | Air conditioning unit capable of effectively improving energy utilization rate and control method and device thereof |
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| CN202010415090.6A CN111503928A (en) | 2020-05-15 | 2020-05-15 | Air conditioning unit capable of effectively improving energy utilization rate and control method and device thereof |
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| WO2013065233A1 (en) * | 2011-11-04 | 2013-05-10 | パナソニック株式会社 | Refrigeration cycle apparatus and air conditioner provided with same |
| CN202973692U (en) * | 2012-09-21 | 2013-06-05 | 青岛海尔空调电子有限公司 | Air-conditioning system with defrosting device and central air-conditioning hot water system |
| WO2018129839A1 (en) * | 2017-01-10 | 2018-07-19 | 美的集团武汉制冷设备有限公司 | Heat storage assembly and air conditioner |
| CN212362483U (en) * | 2020-05-15 | 2021-01-15 | 珠海格力电器股份有限公司 | Air conditioning unit capable of effectively improving energy utilization rate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013065233A1 (en) * | 2011-11-04 | 2013-05-10 | パナソニック株式会社 | Refrigeration cycle apparatus and air conditioner provided with same |
| CN202973692U (en) * | 2012-09-21 | 2013-06-05 | 青岛海尔空调电子有限公司 | Air-conditioning system with defrosting device and central air-conditioning hot water system |
| WO2018129839A1 (en) * | 2017-01-10 | 2018-07-19 | 美的集团武汉制冷设备有限公司 | Heat storage assembly and air conditioner |
| CN212362483U (en) * | 2020-05-15 | 2021-01-15 | 珠海格力电器股份有限公司 | Air conditioning unit capable of effectively improving energy utilization rate |
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Application publication date: 20200807 |