CN106322603A - Refrigeration-only air conditioner and control method thereof - Google Patents
Refrigeration-only air conditioner and control method thereof Download PDFInfo
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- CN106322603A CN106322603A CN201610865345.2A CN201610865345A CN106322603A CN 106322603 A CN106322603 A CN 106322603A CN 201610865345 A CN201610865345 A CN 201610865345A CN 106322603 A CN106322603 A CN 106322603A
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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
- 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
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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
- F25B1/00—Compression machines, plants or systems with non-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
- 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
- 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
- F25B49/022—Compressor control arrangements
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a refrigeration-only air conditioner and a control method of the refrigeration-only air conditioner. The refrigeration-only air conditioner comprises a double-cylinder compressor, an outdoor heat exchanger and an indoor heat exchanger assembly. The double-cylinder compressor comprises a shell, a first air cylinder and a second air cylinder, and the value of the volume ratio of the first air cylinder to the second air cylinder ranges from one to twenty. The outdoor heat exchanger is provided with a flow-in port and two flow distribution ports. The indoor heat exchanger assembly comprises a first indoor heat exchange portion and a second indoor heat exchange portion, wherein the two ends of the first indoor heat exchange portion are connected with a first air suction portion and one of the flow distribution ports respectively, the two ends of the second indoor heat exchange portion are connected with a second air suction portion and one of the flow distribution ports respectively, a throttling element is arranged between the first indoor heat exchange portion and the outdoor heat exchanger in series, and a throttling element is arranged between the second indoor heat exchange portion and the outdoor heat exchanger in series. The refrigeration-only air conditioner is high in level of energy efficiency, and good in effect of energy saving.
Description
Technical field
The present invention relates to air-conditioning technical field, especially relate to a kind of single cold type air-conditioner that can promote air-conditioning efficiency and control
Method processed.
Background technology
Usually, air-conditioner is when refrigeration, and the coolant after restricting element throttles enters directly in indoor heat exchanger
Row heat exchange, owing to being mixed with a part of gaseous coolant in the coolant after throttling, enters into the gaseous coolant in indoor heat exchanger not only
Affecting the heat transfer effect of indoor heat exchanger, the compression power consumption also resulting in compressor increases, and the Energy Efficiency Ratio of compressor reduces, thus
Have influence on the efficiency level of air-conditioner.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention carries
Go out a kind of single cold type air-conditioner, not only can improve the heat transfer effect of indoor heat exchanger assembly, and duplex cylinder compressor can be improved
Energy Efficiency Ratio, reduces the power consumption of duplex cylinder compressor, optimizes the efficiency level of single cold type air-conditioner, good energy-conserving effect.
The present invention also proposes the control method of a kind of single cold type air-conditioner.
Single cold type air-conditioner according to embodiments of the present invention, including: duplex cylinder compressor, described duplex cylinder compressor includes shell
Body, the first cylinder and the second cylinder, described housing is provided with air vent, the first air entry and the second air entry, described first gas
Cylinder and described second cylinder are respectively provided in described housing, and the air intake passage of described first cylinder is with described first air entry even
Logical, the air intake passage of described second cylinder connects with described second air entry, described first cylinder and the appearance of described second cylinder
The span of long-pending ratio is 1～20；Outdoor heat exchanger, described outdoor heat exchanger has one and flows into port and two shunting ends
Mouthful, described inflow port is connected with described air vent；Indoor heat exchanger assembly, described indoor heat exchanger assembly includes that first is indoor
Heat exchanging part and the second indoor heat exchanging part, the two ends of the described first indoor heat exchanging part respectively with described first air entry and its
In diversion port be connected, the two ends of the described second indoor heat exchanging part respectively with described in described second air entry and another
Diversion port is connected, described first indoor heat exchanging part and described outdoor heat exchanger, described second indoor heat exchanging part and described
A restricting element all it is in series with between outdoor heat exchanger.
Single cold type air-conditioner according to embodiments of the present invention, on the one hand by arranging the first cylinder and the second cylinder, and makes
First cylinder and the second cylinder connect with the first air entry and the second air entry respectively, and make the first cylinder and the appearance of the second cylinder
The span of long-pending ratio is 1～20, thus is conducive to improving the Energy Efficiency Ratio of duplex cylinder compressor, reduces the merit of duplex cylinder compressor
Consumption；On the other hand by making indoor heat exchanger assembly include the first indoor heat exchanging part and the second indoor heat exchanging part, first is made
It is in series with a restricting element between indoor heat exchanging part and one of them diversion port of outdoor heat exchanger, makes the second indoor change
It is in series with another restricting element between heat part and another diversion port of outdoor heat exchanger, thus can be easy to through two joints
Coolant after fluid element throttling flows to the first indoor heat exchanging part and the second indoor heat exchanging part respectively, after one side is due to throttling
Two-way coolant in the content of gaseous coolant reduce, on the other hand two-way coolant is respectively in the corresponding first indoor heat exchanging part
With carry out heat exchange in the second indoor heat exchanging part independently of one another with indoor environment, thus be conducive to improving indoor heat exchanger assembly
Heat transfer effect, optimize single cold type air-conditioner efficiency level, good energy-conserving effect.
According to some embodiments of the present invention, described duplex cylinder compressor also includes the first reservoir, described first reservoir
Being located at outside described housing, described first reservoir heat exchanging part indoor with described first air entry and described first respectively is connected.
According to some embodiments of the present invention, described duplex cylinder compressor also includes the second reservoir, described second reservoir
Being located at outside described housing, described second reservoir heat exchanging part indoor with described second air entry and described second respectively is connected.
According to some embodiments of the present invention, the volume of described second reservoir is less than the volume of described first reservoir.
According to some embodiments of the present invention, described restricting element is electric expansion valve, capillary tube or choke valve.
According to some embodiments of the present invention, the described first indoor heat exchanging part and the described second indoor heat exchanging part are two
Individual independent heat exchanger, or described first indoor heat exchanging part and the described second indoor heat exchanging part be same heat exchanger
Two parts.
According to some embodiments of the present invention, the span of the volume ratio of described first cylinder and described second cylinder
It is 1～10.
The control method of single cold type air-conditioner according to embodiments of the present invention, the flow degree of at least one restricting element can
Adjust, according to detection object testing result adjust the adjustable restricting element of flow degree flow degree to predetermined amount of flow degree, wherein
Detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of air vent, the exhaust pressure of air vent
Power, the intermediate pressure of the coolant discharged from described gas outlet, the medium temperature of coolant discharged from described gas outlet, gas-liquid
At least one in separator temperature, pressure of the gas and liquid separator.
The control method of single cold type air-conditioner according to embodiments of the present invention, is conducive to improving the efficiency of air-conditioner.
The control method of single cold type air-conditioner according to embodiments of the present invention, the flow degree of two restricting elements fixes, root
The running frequency of described duplex cylinder compressor is adjusted to meeting bar according to the compressor operation parameters detected and/or outdoor environment temperature
Part, wherein said compressor operation parameters includes at least one in running current, pressure at expulsion, delivery temperature.
The control method of single cold type air-conditioner according to embodiments of the present invention, is conducive to improving the efficiency of air-conditioner.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of single cold type air-conditioner according to some embodiments of the invention.
Reference:
Air-conditioner 100；
Duplex cylinder compressor 1；First cylinder 11；Second cylinder 12；Air vent 13；First air entry 14；Second air entry 15；
Outdoor heat exchanger 2；Flow into port 21；Diversion port 22a, 22b；
Indoor heat exchanger assembly 3；First indoor heat exchanging part 31；Second indoor heat exchanging part 32；
Restricting element 4a, 4b；
First sensor A；Second sensor B；
First reservoir 16；Second reservoir 17.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to
The embodiment that accompanying drawing describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " on ", D score " push up ", " end " " interior ", the instruction such as " outward "
Orientation or position relationship are based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplification is retouched
State rather than indicate or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
In describing the invention, " multiple " are meant that at least two, such as two, three etc., unless otherwise clearly
Concrete restriction.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects
Connect, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, permissible
It is connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Describing single cold type air-conditioner 100 according to embodiments of the present invention below with reference to Fig. 1, single cold type air-conditioner 100 can be used
In freezing to indoor environment.
As it is shown in figure 1, single cold type air-conditioner 100 according to embodiments of the present invention can include that duplex cylinder compressor 1, outdoor are changed
Hot device 2 and indoor heat exchanger assembly 3.It is understood that outdoor heat exchanger 2 is condenser, indoor heat exchanger assembly 3 is for steaming
Send out device assembly.Specifically, indoor heat exchanger assembly 3 is positioned at the casing of an indoor set.
Specifically, duplex cylinder compressor 1 includes housing, the first cylinder 11 and the second cylinder 12.First cylinder 11 and the second gas
Cylinder 12 is respectively provided in housing.Such as, the first cylinder 11 and the second cylinder 12 are respectively provided in housing, and the first cylinder 11 and
Two cylinders 12 are spaced setting on the above-below direction of duplex cylinder compressor 1.Or, in further embodiments, the second cylinder 12 He
Between first cylinder 11 is respectively provided in housing, and the second cylinder 12 and the first cylinder 11 are on the above-below direction of duplex cylinder compressor 1
Every setting.
As it is shown in figure 1, housing is provided with air vent the 13, first air entry 14 and the second air entry 15, the first cylinder 11
Air intake passage and the first air entry 14 connect, and air intake passage and second air entry 15 of the second cylinder 12 connect, thus, after heat exchange
Coolant can return to duplex cylinder compressor 1 from the first air entry 14 and the second air entry 15 respectively.Specifically, from the first air-breathing
The coolant that mouth 14 returns can flow to the first cylinder 11, and the coolant returned from the second air entry 15 can flow to the second cylinder 12, coolant
Independently compressing in the first cylinder 11 and the second cylinder 12, the coolant after compression can be respectively from the first cylinder 11 and the second gas
Cylinder 12 flows to air vent 13, and discharges duplex cylinder compressor 1 from air vent 13 simultaneously.
The span of the volume ratio of the first cylinder 11 and the second cylinder 12 is 1～20, the volume of the i.e. second cylinder 12
It is (1/20)～1 with the span of the ratio of the volume of the first cylinder 11.Inventor finds in practical study, when the first gas
When the span of the volume ratio of cylinder 11 and the second cylinder 12 is 1～20, the efficiency of duplex cylinder compressor 1 is compared with prior art
Have and be obviously improved, thus improve the Energy Efficiency Ratio of duplex cylinder compressor 1, reduce the power consumption of duplex cylinder compressor 1, optimize single cold type empty
Adjust the efficiency level of device 100.
Specifically, as it is shown in figure 1, outdoor heat exchanger 2 has one flows into port 21 and two diversion port 22a, 22b,
Thus, outdoor heat exchanger 2 has a refrigerant inlet and i.e. flows into port 21, and two i.e. diversion port 22a of refrigerant exit, 22b.
Such as it is shown in figure 1, one of them shunting end flowed in port 21 and two diversion port 22a, 22b of outdoor heat exchanger 2
It is provided with another diversion port 22a between mouth 22b.
Flowing into port 21 to be connected with air vent 13, thus, the coolant discharged from air vent 13 can be straight through flowing into port 21
Connect inflow outdoor heat exchanger 2.
Indoor heat exchanger assembly 3 includes the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32, and the first indoor are changed
The two ends of hot part 31 are connected with the first air entry 14 and one of them diversion port 22b respectively, the second indoor heat exchanging part 32
Two ends be connected with the second air entry 15 and another diversion port 22a respectively.
Specifically, the first indoor heat exchanging part 31 heat exchanging part 32 indoor with outdoor heat exchanger 2, second and outdoor heat exchanger
Restricting element 4a, a 4b all it is in series with, say, that at the first indoor heat exchanging part 31 and one of them point above-mentioned between 2
A restricting element 4b it is in series with, in the second indoor heat exchanging part 32 and another diversion port 22a above-mentioned between flow port 22b
Between be in series with a restricting element 4a.Thus, the coolant flowed out after outdoor heat exchanger 2 heat exchange can be respectively through two shuntings
Port 22a, 22b flow to two corresponding restricting elements 4a, 4b, and coolant is after two restricting elements 4a, 4b throttle respectively, respectively
Flow to the indoor heat exchanging part of corresponding first 31 and the second indoor heat exchanging part 32, on the one hand due in the two-way coolant after throttling
The content of gaseous coolant reduce, on the other hand two-way coolant is indoor in the corresponding first indoor heat exchanging part 31 and second respectively
Carry out heat exchange in heat exchanging part 32 independently of one another with indoor environment, thus be conducive to improving the heat exchange of indoor heat exchanger assembly 3
Effect, optimizes the efficiency level of single cold type air-conditioner 100.
Alternatively, adjustable or two restricting elements 4a, 4b the flow degree of the flow degree of two restricting elements 4a, 4b all can not
Adjust, or the flow degree of one of them restricting element 4a, the 4b in two restricting elements 4a, 4b is adjustable and another restricting element
The flow degree of 4a, 4b is fixed.Such as, between the first indoor heat exchanging part 31 and outdoor heat exchanger 2, it is in series with a flow degree
Adjustable restricting element 4b, is in series with what a flow degree was fixed between the second indoor heat exchanging part 32 and outdoor heat exchanger 2
Restricting element 4a.Or, in other embodiments, between the first indoor heat exchanging part 31 and outdoor heat exchanger 2, it is in series with one
The restricting element 4b that individual flow degree is fixing, is in series with a flow between the second indoor heat exchanging part 32 and outdoor heat exchanger 2
Spend adjustable restricting element 4a.Thus, can be by regulating the flow degree of flow degree adjustable restricting element 4a, 4b, can be further
Regulation flows through its temperature and pressure of coolant, thus be conducive to improving further indoor heat exchanger assembly 3 can with flow degree
The heat transfer effect of indoor heat exchanging part corresponding to restricting element 4a, 4b adjusted.
Alternatively, flow degree adjustable restricting element 4a, 4b are electric expansion valve, the restricting element 4a of firm discharge degree,
4b is capillary tube or choke valve.Thus, not only simple in construction, and be quick on the draw.
Specifically, as it is shown in figure 1, when single cold type air-conditioner 100 freezes, from air vent 13 row of duplex cylinder compressor 1
The coolant gone out can flow to outdoor heat exchanger 2 through flowing into port 21, and coolant changes with outdoor environment in outdoor heat exchanger 2
Heat, coolant is after two diversion port 22a of outdoor heat exchanger 2,22b flow out subsequently, flows to two throttling units of correspondence respectively
Part 4a, 4b, two-way coolant, after corresponding restricting element 4a, 4b reducing pressure by regulating flow, flows to the first indoor heat exchanging part of correspondence respectively
Points 31 and second in indoor heat exchanging part 32 and in the first indoor heat exchanging part 31 and the second indoor heat exchanging part independently of one another
Carrying out heat exchange to freeze to indoor environment with indoor environment, the two-way coolant after heat exchange is respectively from the corresponding first indoor heat exchanging part
Points 31 and second indoor heat exchanging part 32 flow out, and flow respectively respectively through the first corresponding air entry 14 and the second air entry 15
To the first cylinder 11 and the second cylinder 12；Two-way coolant independent compression in the first corresponding cylinder 11 and the second cylinder 12 respectively
To form the coolant of High Temperature High Pressure respectively, the two-way coolant after compression can flow to row from the first cylinder 11 and the second cylinder 12 respectively
QI KOU 13, and discharge duplex cylinder compressor 1 from air vent 13 simultaneously, thus form the kind of refrigeration cycle of single cold type air-conditioner 100.
Single cold type air-conditioner 100 according to embodiments of the present invention, on the one hand by arranging the first cylinder 11 and the second cylinder
12, and make the first cylinder 11 connect with the first air entry 14 and the second air entry 15 respectively with the second cylinder 12, and make the first gas
The span of the volume ratio of cylinder 11 and the second cylinder 12 is 1～20, thus is conducive to improving the efficiency of duplex cylinder compressor 1
Ratio, reduces the power consumption of duplex cylinder compressor 1；On the other hand by making indoor heat exchanger assembly 3 include the first indoor heat exchanging part 31
With the second indoor heat exchanging part 32, make the first indoor heat exchanging part 31 and outdoor heat exchanger 2 one of them diversion port 22b it
Between be in series with a restricting element 4b, make the second indoor heat exchanging part 32 and outdoor heat exchanger 2 another diversion port 22a it
Between be in series with another restricting element 4a, thus the coolant after two restricting element 4a, 4b throttlings can be easy to and flow to the respectively
One indoor heat exchanging part 31 and the second indoor heat exchanging part 32, on the one hand due to the gaseous coolant in the two-way coolant after throttling
Content reduces, and on the other hand two-way coolant is respectively in the corresponding first indoor heat exchanging part 31 and the second indoor heat exchanging part 32
Carry out heat exchange independently of one another with indoor environment, thus be conducive to improving the heat transfer effect of indoor heat exchanger assembly, optimize Dan Leng
The efficiency level of type air-conditioner 100, good energy-conserving effect.
In some embodiments of the invention, duplex cylinder compressor 1 also includes that the first reservoir 16, the first reservoir 16 are located at
Outside housing, the first reservoir 16 heat exchanging part 31 indoor with the first air entry 14 and first respectively is connected, thus, can be easy to from
The coolant that first indoor heat exchanging part 31 flows out carries out gas-liquid separation, in order to gaseous coolant flows to the through the first air entry 14
One cylinder 11 and liquid refrigerants is stored in the first reservoir 16, thus avoid the liquid refrigerants liquid hammer to the first cylinder 11.
Further, duplex cylinder compressor 1 also includes that the second reservoir 17, the second reservoir 17 are located at outside housing, the second storage
Liquid device 17 is connected with the second air entry 15 and the second indoor heat exchanging part 32 respectively, thus, can be easy to from the second indoor heat exchange
The coolant that part 32 flows out carries out gas-liquid separation, in order to gaseous coolant flows to the second cylinder 12 and liquid through the second air entry 15
State coolant is stored in the second reservoir 17, thus avoids the liquid refrigerants liquid hammer to the second cylinder 12, is then conducive to carrying
High duplex cylinder compressor 1 reliability of operation.
Alternatively, the volume of the second reservoir 17 can greater than, equal to or less than the volume of the first reservoir 16.
Preferably, the volume of the second reservoir 17 is less than the volume of the first reservoir 16.Specifically, due to the second cylinder
The volume of 12 to the first cylinders 11 is little, by making the volume volume less than the first reservoir 16 of the second reservoir 17, not only
Can ensure to flow back to the first cylinder 11 and coolant quantity of the second cylinder 12 respectively, and advantageously reduce cost.
In some embodiments of the invention, the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32 be two solely
Vertical heat exchanger, thus, is conducive to improving the heat transfer effect of indoor heat exchanger assembly 3.Certainly, the invention is not restricted to this, at it
In its embodiment, the first indoor heat exchanging part 31 and two parts that the second indoor heat exchanging part 32 is same heat exchanger, thus
Simple and reliable, and advantageously reduce cost.
Further, the span of the volume ratio of the first cylinder 11 and the second cylinder 12 is 1～13.
In view of the second cylinder 12 and the aspect such as the processing of the first cylinder 11 and manufacture, it is preferable that the first cylinder 11 and
The span of the volume ratio of two cylinders 12 is 1～10.Thus be conducive to optimizing further the structure of duplex cylinder compressor 1.
Specifically, as it is shown in figure 1, single cold type air-conditioner 100 still further comprises first sensor A, first sensor A position
For temperature or the pressure of the coolant at detection air vent 13 at air vent 13.Alternatively, first sensor A is that pressure passes
Sensor or temperature sensor.
Specifically, single cold type air-conditioner 100 still further comprises the second sensor B, the second sensor B to be positioned at first indoor
Heat exchanging part 31 or be positioned at temperature or the pressure of coolant corresponding for detection in the second indoor heat exchanging part 32.Alternatively,
Second sensor B is pressure transducer or temperature sensor.
Below with reference to Fig. 1, the structure of the single cold type air-conditioner 100 of one specific embodiment of the present invention is described in detail.
As it is shown in figure 1, the single cold type air-conditioner 100 of the present embodiment includes duplex cylinder compressor 1, outdoor heat exchanger 2 and indoor
Heat exchanger assembly 3.
Duplex cylinder compressor 1 includes housing, the first cylinder 11 and the second cylinder 12.First cylinder 11 and the second cylinder 12 are respectively
It is located in housing.
As it is shown in figure 1, housing is provided with air vent the 13, first air entry 14 and the second air entry 15, the first cylinder 11
Air intake passage and the first air entry 14 connect, and air intake passage and second air entry 15 of the second cylinder 12 connect, thus, after heat exchange
Coolant can return to duplex cylinder compressor 1 from the first air entry 14 and the second air entry 15 respectively.
Specifically, as it is shown in figure 1, outdoor heat exchanger 2 has one flows into port 21 and two diversion port 22a, 22b.
Flow into port 2 to be connected with air vent 13.
Indoor heat exchanger assembly 3 includes the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32, and the first indoor are changed
The two ends of hot part 31 are connected with the first air entry 14 and one of them diversion port 22b respectively, the second indoor heat exchanging part 32
Two ends be connected with the second air entry 15 and another diversion port 22a respectively.
Specifically, the first indoor heat exchanging part 31 heat exchanging part 32 indoor with outdoor heat exchanger 2, second and outdoor heat exchanger
Restricting element 4a, a 4b all it is in series with between 2.The stream of one of them restricting element 4a, 4b in two restricting elements 4a, 4b
Measuring adjustable and another restricting element 4a, 4b flow degree to fix, flow degree adjustable restricting element 4a, 4b are electronic expansion
Valve, restricting element 4a, 4b that flow degree is fixed are capillary tube.
First indoor heat exchanging part 31 and the second indoor heat exchanging part 32 are two independent heat exchangers.Two indoor heat exchange
Part is positioned at the casing of same indoor set.
Inventor, in practical study, uses air-conditioner to do many groups of experiments to verify the first cylinder 11 and the second cylinder 12
Volume ratio and duplex cylinder compressor 1 efficiency promote than between relation, use one of which illustrate.
| First cylinder and the second cylinder ratio | Efficiency promotes (%) |
| 2 | 10% |
| 20 | 7% |
When the span of the first cylinder 11 and the volume ratio of the second cylinder 12 is 1～20, the efficiency of complete machine is with existing
Technology is had to compare to have and be obviously improved.
Preferably, the span of the volume ratio of the first cylinder 11 and the second cylinder 12 is 1～10.
The control method of single cold type air-conditioner according to embodiments of the present invention is described below in detail.
The flow degree of two restricting elements of single cold type air-conditioner is the most adjustable, and the flow degree of certain restricting element can also is that
The most nonadjustable.Or, in further embodiments, the flow degree of a restricting element in two restricting elements is adjustable, separately
The flow degree of one restricting element is fixed.Herein it should be noted that the flow degree of restricting element is fixed and referred to restricting element
Flow degree is non-adjustable.
When at least one restricting element flow degree can timing, according to detection object testing result adjust flow degree can
The flow degree of the restricting element adjusted is to predetermined amount of flow degree, and wherein detection object includes the fortune of outdoor environment temperature, duplex cylinder compressor
At least one in the pressure at expulsion of line frequency, the delivery temperature of air vent and air vent.Such as, single cold type air-conditioner includes control
Device processed, controller can adjust the flow degree of the adjustable restricting element of flow degree to setting flow according to the testing result of detection object
Degree.
Specifically, when two restricting elements have a restricting element flow degree can timing, according to detection object
Testing result adjust the adjustable restricting element of flow degree flow degree to set flow degree；Flow degree when two restricting elements
All can timing, corresponding to two restricting elements detection object can be that identical can also is that differs.Such as can basis
The testing result of the first detection object and the second detection object is adjusted the flow degree of two restricting elements respectively to setting flow
Degree.Wherein, the first detection object and the second detection object all include outdoor environment temperature, the running frequency of duplex cylinder compressor, row
At least one in the delivery temperature of QI KOU and the pressure at expulsion of air vent.It is understood that the first detection object and second
The identical parameter referred to needed for two restricting elements of regulation of detection object is identical, the first detection object and the second detection
Refer to during object difference that the parameter needed for two restricting elements of regulation is different.
In some embodiments of the invention, when two restricting elements flow degree all can timing, two restricting elements pair
The detection object that is first answered detects object and the second detection object is outdoor environment temperature T4；Or when two restricting elements
In have a restricting element flow degree can timing, the detection object that this restricting element is corresponding is outdoor environment temperature.
It is interval that outdoor environment temperature presets multiple outdoor temperature respectively, the corresponding different throttling unit in each outdoor temperature interval
The flow degree of part, according to the stream of restricting element corresponding to the outdoor temperature interval at the actually detected outdoor environment temperature value place arrived
Measurement value adjusts the flow degree of the adjustable restricting element of flow degree.I.e. when two restricting elements flow degree all can timing, according to
The flow angle value of the restricting element that the outdoor temperature interval at the actually detected outdoor environment temperature value place arrived is corresponding adjusts two
The flow degree of restricting element；When the said one restricting element in two restricting elements flow degree can timing, according to reality examine
The flow angle value of the restricting element that the outdoor temperature interval at the outdoor environment temperature value place measured is corresponding adjusts one joint
The flow degree of fluid element
Specifically, during refrigeration, the concrete condition of the flow degree of the restricting element that different outdoor temperature intervals is corresponding is as follows
Table:
| T4 | Flow degree |
| 10≤T4 ＜ 20 | 100 |
| 20≤T4 ＜ 30 | 110 |
| 30≤T4 ＜ 40 | 120 |
| 40≤T4 ＜ 50 | 150 |
| 50≤T4 ＜ 60 | 180 |
In further embodiments, when two restricting elements flow degree all can timing, the detection of two restricting elements is right
As the i.e. first detection object and the second detection object are outdoor environment temperature T4 and running frequency F；When two restricting elements have
The flow degree of one restricting element can timing, the detection object that this restricting element is corresponding is outdoor environment temperature T4 and running frequency
F。
First the setting flow degree of restricting element it is calculated according to outdoor environment temperature and running frequency, then according to setting
The flow degree adjusting restricting element is measured in constant current.It is to say, when the flow degree of two restricting elements all can timing, first basis
Outdoor environment temperature and running frequency are calculated the setting flow degree of restricting element, then according to setting flow degree adjustment two
The flow degree of restricting element；When two restricting elements have a restricting element flow degree can timing, first according to outdoor ring
Border temperature and running frequency are calculated the setting flow degree of restricting element, then according to setting flow degree adjustment one joint
The flow degree of fluid element.
Specifically, during refrigeration, the flow degree LA_cool_1 and outdoor environment temperature T4 of restricting element and running frequency F it
Between relational expression be: LA_cool_1=a1·F+b1T4+c1, when the flow degree LA_cool_1 calculated is more than the throttling unit gathered
When the actual flow of part is measured, the flow degree of adjustable for flow degree restricting element is increased to calculated flow rate degree；Otherwise turn down.Wherein
0≤a1≤ 20,0≤b1≤ 20 ,-50≤c1≤100.Control coefrficient a, b, c can be all 0, when one coefficient of any of which is zero
Time, it was demonstrated that parameter corresponding to this coefficient on the flow degree of restricting element without impact.Such as when refrigeration, outdoor environment temperature detected
Degree is 35 DEG C, and compressor operating frequency is 58Hz, sets a1=1, b1=1.6, c1=6.First single cold type air-conditioner is according to collection
The frequency arrived and T4 value, the flow degree calculating restricting element should be 120, adjusts the flow of the adjustable restricting element of flow degree
Degree is to 120.
In some concrete examples of the present invention, the flow degree of two restricting elements is the most adjustable, and two restricting elements pair
The detection object that is first answered detects object and the second detection object is outdoor environment temperature T4, running frequency F and exhaust pressure
Power；Or the first detection object and the second detection object are outdoor environment temperature T4, running frequency F and delivery temperature, first root
It is calculated setting pressure at expulsion according to outdoor environment temperature T4 and running frequency F or sets delivery temperature, then according to reality
The pressure at expulsion detected or delivery temperature adjust two restricting elements flow degree so that the pressure at expulsion that detects or
Person's delivery temperature reaches set pressure at expulsion or set delivery temperature.Thus, simple and reliable.
In some concrete examples of the present invention, the flow degree having a restricting element in two restricting elements is adjustable, should
The detection object of the adjustable restricting element of flow degree is outdoor environment temperature T4, running frequency F and pressure at expulsion or outdoor ring
Border temperature T4, running frequency F and delivery temperature, be first calculated setting row according to outdoor environment temperature T4 and running frequency F
Atmospheric pressure or setting delivery temperature, then adjust restricting element according to the actually detected pressure at expulsion arrived or delivery temperature
Flow degree is so that the pressure at expulsion or the delivery temperature that detect reach set pressure at expulsion or set delivery temperature.By
This, simple and reliable.
In some embodiments of the invention, the flow degree of two restricting elements is the most adjustable, and one of them restricting element
The first corresponding detection object is outdoor environment temperature T4, and it is interval that outdoor environment temperature presets multiple outdoor temperature respectively, each
The flow degree of the corresponding different restricting element in outdoor temperature interval, can adjust described according to the actually detected outdoor environment temperature arrived
The flow degree of one of them restricting element；The second detection object that another restricting element is corresponding is outdoor environment temperature and operation
Frequency, first can be calculated the setting flow of another restricting element described according to outdoor environment temperature T4 and running frequency F
Degree, then according to the flow degree setting flow degree adjustment another restricting element described.
Specifically, during refrigeration, the concrete condition of the flow degree of the restricting element that different outdoor temperature intervals is corresponding is as follows
Table:
| T4 | Flow degree |
| 10≤T4 ＜ 20 | 100 |
| 20≤T4 ＜ 30 | 110 |
| 30≤T4 ＜ 40 | 120 |
| 40≤T4 ＜ 50 | 150 |
| 50≤T4 ＜ 60 | 180 |
Relational expression between flow degree LA_cool_1 and outdoor environment temperature T4 and running frequency F of restricting element is:
LA_cool_1=a1·F+b1T4+c1, when the flow degree LA_cool_1 calculated measures more than the actual flow of the restricting element gathered
Time, the flow degree of restricting element is increased to calculated flow rate degree；Otherwise turn down.Wherein 0≤a1≤ 20,0≤b1≤ 20 ,-50≤c1
≤100.Control coefrficient a, b, c can be all 0, when one coefficient of any of which is zero, it was demonstrated that parameter corresponding to this coefficient is to joint
The flow degree of fluid element is without impact.
Further, after the flow degree of restricting element meets condition, can be after running the n second, detection detection is right again
As, then adjust the flow degree of restricting element according to testing result, so repeat.Certainly repeat condition is not limited to this, such as may be used
With after receiving the operational order of user, detection detection object, then adjusts the stream of restricting element according to testing result again
Measure.
When the flow degree of restricting element is fixed, according to the compressor operation parameters detected and/or outdoor environment temperature
The running frequency of adjustment duplex cylinder compressor is to meeting condition, and wherein compressor operation parameters includes running current, pressure at expulsion, row
At least one in temperature；In other words, according to the testing result adjustment duplex cylinder compressor to detection object during refrigerating operaton
Running frequency, wherein detection object includes outdoor environment temperature, the delivery temperature of air vent, the pressure at expulsion of air vent, twin-tub
At least one in the running current of compressor.
Further, when the running frequency of duplex cylinder compressor adjusts to after meeting condition, again can examine after running the n second
Measured compressed machine operational factor and/or outdoor environment temperature, then adjust the fortune of compressor according to the testing result again detected
Line frequency, so repeats.Certainly repeat condition is not limited to this, such as, again can examine after receiving the operational order of user
Measured compressed machine operational factor and/or outdoor environment temperature, then adjust the fortune of compressor according to the testing result again detected
Line frequency.
In the concrete example of the present invention, during single cold type air-conditioner runs, if be detected that user's shutdown refers to
Order or indoor environment temperature reach design temperature, and compressor is out of service.
In some embodiments of the invention, multiple different delivery temperature is first preset interval, multiple delivery temperature districts Between the regulating command of corresponding running frequency different, then detection delivery temperature the row according to the delivery temperature place detected The regulating command regulation running frequency that temperature interval is corresponding.Wherein regulating command can include frequency reducing, raising frequency, holding frequency The instructions such as shutdown, releasing frequency limitation.Thus the running frequency of compressor is adjusted by detection delivery temperature, can be the most anti-Answer the running status of system, it is ensured that system operates in suitable parameter area, improve air-conditioner reliability of operation further. Needing to illustrate, the running frequency that releasing frequency limitation refers to compressor is unrestricted, it is not necessary to adjust compressor Running frequency.Such as air-conditioner start refrigerating operaton, detects delivery temperature TP, sets following regulation and refer in running Order:115 DEG C≤TP, shuts down; 110 DEG C≤TP < 115 DEG C, be downconverted to TP < 110 DEG C; 105 DEG C≤TP < 110 DEG C, frequency keeps; TP < 105 DEG C, release frequency limitation.Then perform corresponding regulating command according to actually detected delivery temperature TP arrived, regulating Again detect TP after one-tenth, just terminating to judge if meeting regulation, after running the n second, delivery temperature TP being detected again, repeats to sentence Disconnected.While running the n second, if be detected that user's shutdown command or design temperature reach, terminate to run.
In some embodiments of the invention, multiple outdoor temperatures interval and refrigeration stoppage protection electric current, multiple rooms are preset
The corresponding different limit frequency protective current of outer temperature range.First outdoor environment temperature is detected, then according to the outdoor ring detected
The outdoor temperature interval at temperature place, border obtains the limit frequency protective current of correspondence, adjusts running frequency so that the actually detected fortune arrived
Row electric current reaches to limit frequency protective current accordingly, and the running current detected the most when cooling is more than refrigeration stoppage protection electric current
Time the most directly shut down.
Specifically, during refrigeration, the interval and corresponding corresponding relation limiting protective current frequently of multiple outdoor temperatures can institute as follows
Showing: as T4 ＞ 50.5 DEG C, limit frequency protective current is CL5；As 49.5 DEG C >=T4 ＞ 45.5 DEG C, limit frequency protective current is CL4；
As 44.5 DEG C >=T4 ＞ 41 DEG C, limit frequency protective current is CL3；As 40 DEG C >=T4 ＞ 33 DEG C, limit frequency protective current is CL2；When
32 >=T4 DEG C, limit frequency protective current is CL1.Wherein CL5, CL4, CL3, CL2, CL1 and the concrete number of refrigeration stoppage protection electric current
Value specifically can limit according to practical situation, does not limits at this.
The outdoor environment temperature T4 such as detected when refrigerating operaton is positioned at the interval 40 DEG C >=T4 ＞ 33 DEG C of outdoor temperature
Time interior, then it represents that running current does not allow more than limit frequency protective current CL2, if it does, running current will be downconverted to less than limit
Frequently protective current CL2.
In some embodiments of the invention, can preset multiple outdoor temperature interval, multiple outdoor temperature intervals are corresponding
Different setting running frequencies, according to the setting fortune that the outdoor temperature interval at the actually detected outdoor environment temperature place arrived is corresponding
Line frequency adjusts the running frequency of compressor.
In some embodiments of the invention, multiple different pressure at expulsion is first preset interval, multiple pressure at expulsion districts
Between the regulating command of corresponding running frequency different, then detection pressure at expulsion the row according to the pressure at expulsion place detected
The regulating command regulation running frequency that atmospheric pressure interval is corresponding.Wherein regulating command can include frequency reducing, raising frequency, holding frequency,
The instructions such as shutdown, releasing frequency limitation.Thus the running frequency of compressor is adjusted by detection pressure at expulsion, can be the most anti-
Answer the running status of system, it is ensured that system operates in suitable parameter area, improve air-conditioner reliability of operation further.
The control method of single cold type air-conditioner according to embodiments of the present invention, is conducive to improving the energy of single cold type air-conditioner
Effect.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification.
Claims (9)
1. a single cold type air-conditioner, it is characterised in that including:
Duplex cylinder compressor, described duplex cylinder compressor includes housing, the first cylinder and the second cylinder, and described housing is provided with aerofluxus
Mouthful, the first air entry and the second air entry, described first cylinder and described second cylinder be respectively provided in described housing, described the
The air intake passage of one cylinder connects with described first air entry, and the air intake passage of described second cylinder is with described second air entry even
Logical, the span of the volume ratio of described first cylinder and described second cylinder is 1～20；
Outdoor heat exchanger, described outdoor heat exchanger has one and flows into port and two diversion port, described inflow port and institute
State air vent to be connected；
Indoor heat exchanger assembly, described indoor heat exchanger assembly includes the first indoor heat exchanging part and the second indoor heat exchanging part,
The two ends of the described first indoor heat exchanging part are connected with described first air entry and one of them diversion port respectively, and described second
The two ends of indoor heat exchanging part are connected with described second air entry and another described diversion port respectively, and described first indoor are changed
Heat part and described outdoor heat exchanger, between described second indoor heat exchanging part and described outdoor heat exchanger, all it is in series with a joint
Fluid element.
Single cold type air-conditioner the most according to claim 1, it is characterised in that described duplex cylinder compressor also includes the first liquid storage
Device, described first reservoir is located at outside described housing, described first reservoir respectively with described first air entry and described first
Indoor heat exchanging part is connected.
Single cold type air-conditioner the most according to claim 2, it is characterised in that described duplex cylinder compressor also includes the second liquid storage
Device, described second reservoir is located at outside described housing, described second reservoir respectively with described second air entry and described second
Indoor heat exchanging part is connected.
Single cold type air-conditioner the most according to claim 3, it is characterised in that the volume of described second reservoir is less than described
The volume of the first reservoir.
Single cold type air-conditioner the most according to claim 1, it is characterised in that described restricting element is electric expansion valve, hair
Tubule or choke valve.
Single cold type air-conditioner the most according to claim 1, it is characterised in that described first indoor heat exchanging part and described the
Two indoor heat exchanging part are two independent heat exchangers, or the described first indoor heat exchanging part and the described second indoor heat exchanging part
It is divided into two parts of same heat exchanger.
7. according to the single cold type air-conditioner according to any one of claim 1-6, it is characterised in that described first cylinder and described
The span of the volume ratio of the second cylinder is 1～10.
8. the control method according to the single cold type air-conditioner according to any one of claim 1-7, it is characterised in that at least
The flow degree of one described restricting element is adjustable, according to the testing result adjustment adjustable restricting element of flow degree to detection object
Flow degree to predetermined amount of flow degree, wherein detection object include outdoor environment temperature, the running frequency of duplex cylinder compressor, air vent
Delivery temperature and air vent pressure at expulsion at least one.
9. the control method according to the single cold type air-conditioner according to any one of claim 1-7, it is characterised in that two
The flow degree of restricting element is fixed, and adjusts described twin-tub according to the compressor operation parameters detected and/or outdoor environment temperature
The running frequency of compressor is to meeting condition, and wherein said compressor operation parameters includes running current, pressure at expulsion, aerofluxus temperature
At least one in degree.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617088 | 2016-07-29 | ||
| CN2016106170880 | 2016-07-29 | ||
| CN2016106264125 | 2016-07-29 | ||
| CN2016106170965 | 2016-07-29 | ||
| CN201610617096 | 2016-07-29 | ||
| CN201610626412 | 2016-07-29 |
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| CN106322603A true CN106322603A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610865345.2A Pending CN106322603A (en) | 2016-07-29 | 2016-09-29 | Refrigeration-only air conditioner and control method thereof |
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| CN (1) | CN106322603A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107014038A (en) * | 2017-04-13 | 2017-08-04 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
| CN107023962A (en) * | 2017-04-13 | 2017-08-08 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
| CN107023957A (en) * | 2017-04-13 | 2017-08-08 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
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| CN107023962A (en) * | 2017-04-13 | 2017-08-08 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
| CN107023957A (en) * | 2017-04-13 | 2017-08-08 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
| CN107023957B (en) * | 2017-04-13 | 2020-08-25 | 青岛海尔空调器有限总公司 | Air conditioner and control method |
| CN107023962B (en) * | 2017-04-13 | 2020-08-25 | 青岛海尔空调器有限总公司 | Air conditioner and control method |
| CN107014038B (en) * | 2017-04-13 | 2020-12-29 | 青岛海尔空调器有限总公司 | Air conditioner and control method |
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