CN106482218A - Single cold type air-conditioner and control method - Google Patents
Single cold type air-conditioner and control method Download PDFInfo
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- CN106482218A CN106482218A CN201610873145.1A CN201610873145A CN106482218A CN 106482218 A CN106482218 A CN 106482218A CN 201610873145 A CN201610873145 A CN 201610873145A CN 106482218 A CN106482218 A CN 106482218A
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- cylinder
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- air
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located 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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/08—Compressors specially adapted for separate 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention discloses a kind of single cold type air-conditioner and control method, and described single cold type air-conditioner includes：Duplex cylinder compressor, duplex cylinder compressor includes housing, the first cylinder and the second cylinder, the air intake passage of the first cylinder is connected with the first air entry, and the air intake passage of the second cylinder is connected with the second air entry, and the span of the volume ratio of the first cylinder and the second cylinder is 1～20；Outdoor heat exchanger, the second end of outdoor heat exchanger is connected with the first end of restricting element；Gas-liquid separator, the first interface of gas-liquid separator is connected with the second end of restricting element；Indoor heat exchanger assembly, indoor heat exchanger assembly includes the first indoor heat exchanging part and the second indoor heat exchanging part, the two ends of the first indoor heat exchanging part are connected with the second interface of the first air entry and gas-liquid separator respectively, and the two ends of the second indoor heat exchanging part are connected with the second air entry and the 3rd interface respectively.The single cold type air-conditioner of the present invention, efficiency level is high, good energy-conserving effect.
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 lift air-conditioning efficiency and control
Method processed.
Background technology
Usually, in refrigeration, the coolant after restricting element throttling enters directly in indoor heat exchanger air-conditioner
Row heat exchange, is mixed with a part of gaseous coolant due in the coolant after throttling, enters into gaseous coolant in indoor heat exchanger not only
The heat transfer effect of impact 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.
Content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.For this reason, 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 a kind of control method 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 is connected with described second air entry, the appearance of described first cylinder and described second cylinder
The span of long-pending ratio is 1～20；Outdoor heat exchanger, the first end of described outdoor heat exchanger is connected with described air vent, institute
The second end stating outdoor heat exchanger is connected with the first end of restricting element；Gas-liquid separator, described gas-liquid separator includes first
It is interfaced to the 3rd interface, described first interface is connected with the second end of described restricting element；Indoor heat exchanger assembly, described interior
Heat exchanger assembly includes the first indoor heat exchanging part and the second indoor heat exchanging part, and the two ends of the described first indoor heat exchanging part are divided
It is not connected with the second interface of described first air entry and described gas-liquid separator, the two ends of the described second indoor heat exchanging part are divided
It is not connected with described 3rd interface of described second air entry and described gas-liquid separator.
Single cold type air-conditioner according to embodiments of the present invention, on the one hand passes through to arrange the first cylinder and the second cylinder, and makes
First cylinder and the second cylinder are connected 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 being conducive to improving the Energy Efficiency Ratio of duplex cylinder compressor, reduces the work(of duplex cylinder compressor
Consumption；On the other hand pass through to arrange gas-liquid separator, and make indoor heat exchanger assembly include the first indoor heat exchanging part and second Room
Interior heat exchanging part, makes the first indoor heat exchanging part be connected with the second interface of gas-liquid separator, make the second indoor heat exchanging part and
3rd interface of gas-liquid separator is connected, thus gaseous coolant that gas-liquid separator separates go out and liquid refrigerants can be easy to respectively solely
On the spot flow to indoor heat exchanger assembly, and independently carry out heat exchange with indoor environment in heat exchanger assembly indoors, thus favorably
In the heat transfer effect improving indoor heat exchanger assembly, optimize the efficiency level of single cold type air-conditioner, good energy-conserving effect.According to this
Some bright embodiments, described duplex cylinder compressor also includes the first reservoir, and described first reservoir is located at outside described housing, institute
State the first reservoir to be connected with described first air entry and described first indoor heat exchanging part respectively.
Specifically, described duplex cylinder compressor also includes the second reservoir, and described second reservoir is located at outside described housing, institute
State the second reservoir to be connected with described second air entry and described second indoor heat exchanging part respectively.
Specifically, the volume of described second reservoir is less than the volume of described first reservoir.
Alternatively, 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 described second indoor heat exchanging part are two
Individual independent heat exchanger, or described first indoor heat exchanging part and 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
For 1～10.
The control method of single cold type air-conditioner according to embodiments of the present invention, the flow degree of described restricting element is adjustable,
During refrigerating operaton, the flow degree according to the testing result adjustment adjustable restricting element of flow degree to the first detection object is to setting
Flow degree；Wherein said first detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the aerofluxuss of air vent
At least one of pressure at expulsion of temperature and air vent.
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.
The control method of single cold type air-conditioner according to embodiments of the present invention, the flow degree of described restricting element is fixed, root
Adjust the running frequency of described duplex cylinder compressor according to the compressor operation parameters detecting and/or outdoor environment temperature to meeting bar
Part, wherein said compressor operation parameters include at least one of 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 energy of single cold type air-conditioner
Effect.
Brief description
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；
Indoor heat exchanger assembly 3；First indoor heat exchanging part 31；Second indoor heat exchanging part 32；
Restricting element 4；
Gas-liquid separator 5；First interface 51；Second interface 52；3rd interface 53；
First sensor A；Second sensor B；
First reservoir 16；Second reservoir 17.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings.Below with reference to
The embodiment of Description of Drawings is exemplary it is intended to be 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 " top ", " bottom " " 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 instruction or the hint 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 clear and definite
Specific restriction.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, permissible
It is the connection of two element internals or the interaction relationship of two elements, limit unless otherwise clear and definite.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.
Below with reference to Fig. 1, single cold type air-conditioner 100 according to embodiments of the present invention is described, single cold type air-conditioner 100 can use
In freezing to indoor environment.
As shown in figure 1, single cold type air-conditioner 100 according to embodiments of the present invention can include duplex cylinder compressor 1, outdoor is changed
Hot device 2, gas-liquid separator 5 and indoor heat exchanger assembly 3.It is understood that outdoor heat exchanger 2 is condenser, indoor heat exchange
Device assembly 3 is evaporator assemblies.Specifically, indoor heat exchanger assembly 3 is located 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.For example, the first cylinder 11 and the second cylinder 12 are respectively provided in housing, and the first cylinder 11 and
Two cylinders 12 interval 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 shown in figure 1, housing is provided with air vent 13, the first air entry 14 and the second air entry 15, the first cylinder 11
Air intake passage is connected with the first air entry 14, and the air intake passage of the second cylinder 12 is connected with the second air entry 15, 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 of mouth 14 return can flow to the first cylinder 11, and the coolant returning from the second air entry 15 can flow to the second cylinder 12, coolant
Independently compress 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, i.e. the volume of the second cylinder 12
Span with the ratio of the volume of the first cylinder 11 is (1/20)～1.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
Having and be obviously improved, thus improving the Energy Efficiency Ratio of duplex cylinder compressor 1, reducing the power consumption of duplex cylinder compressor 1, optimize single cold type empty
Adjust the efficiency level of device 100.
Specifically, as shown in figure 1, the first end (for example, the left end shown in Fig. 1) of outdoor heat exchanger 2 and air vent 13
It is connected, second end (for example, the right-hand member shown in Fig. 1) of outdoor heat exchanger 2 and the first end of restricting element 4 are (for example, in Fig. 1
The left end illustrating) it is connected, restricting element 4 can carry out reducing pressure by regulating flow to flowing through its coolant.
As shown in figure 1, gas-liquid separator 5 includes first interface 51 to the 3rd interface 53, wherein first interface 51 and throttling
Second end (for example, right-hand member shown in Fig. 1) of element 4 is connected, and coolant can achieve gaseous coolant and liquid in gas-liquid separator 5
The separation of state coolant.Alternatively, when single cold type air-conditioner 100 freezes, gaseous coolant can flow out from second interface 52, and liquid is cold
Matchmaker can be flowed out from the 3rd interface 53.Certainly, in further embodiments, as shown in figure 1, when single cold type air-conditioner 100 freezes,
Gaseous coolant can flow out from the 3rd interface 53, and liquid refrigerants flows out from second interface 52.It should be noted that gaseous coolant and liquid
It is relevant with the concrete structure of gas-liquid separator 5 that state coolant specifically flows out from which interface, and the structure of gas-liquid separator 5 and work are former
Reason is by as it is known to those skilled in the art that no longer describe in detail herein.
Indoor heat exchanger assembly 3 includes the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32, and the first interior is changed
The two ends of hot part 31 are connected with the second interface 52 of the first air entry 14 and gas-liquid separator 5 respectively, the second indoor heat exchanging part
The two ends dividing 32 are connected with the 3rd interface 53 of the second air entry 15 and gas-liquid separator 5 respectively.For example, as shown in figure 1, working as single
During cold mould air-conditioner 100 refrigeration, the liquid refrigerants that gas-liquid separator 5 is isolated can flow out from second interface 52 to flow to the first Room
Interior heat exchanging part 31 and indoor environment heat exchange, gaseous coolant can flow out from the 3rd interface 53 and flow to heat exchanging part 32 in second Room
Carry out heat exchange with indoor environment.Thus, gaseous coolant that gas-liquid separator 5 isolates and liquid refrigerants can be easy to separately
Flow to indoor heat exchanger assembly 3, and independently enter with indoor environment in two indoor heat exchanging part of heat exchanger assembly 3 indoors
Row heat exchange, thus being conducive to improving the heat transfer effect of indoor heat exchanger assembly 3, optimizes the efficiency level of single cold type air-conditioner 100.
Alternatively, the flow degree of restricting element 4 is adjustable, or the flow degree of restricting element 4 is non-adjustable.
Alternatively, restricting element 4 flow degree can timing, restricting element 4 be electric expansion valve.Thus, not only structure is simple,
And be quick on the draw.Certainly, the invention is not restricted to this, in further embodiments, when the flow degree of restricting element 4 is fixing, section
Fluid element 4 is choke valve or capillary tube.
Specifically, for example, as shown in figure 1, when single cold type air-conditioner 100 freezes, from the air vent of duplex cylinder compressor 1
The coolant of 13 discharges can flow to outdoor heat exchanger 2, and coolant carries out heat exchange, subsequent coolant with outdoor environment in outdoor heat exchanger 2
After outdoor heat exchanger 2 flows out, flow to restricting element 4, after restricting element 4 reducing pressure by regulating flow, flow to gas-liquid separator 5, coolant
Realize the separation of gaseous coolant and liquid refrigerants in gas-liquid separator 5, liquid refrigerants flows out from second interface 52, gaseous coolant
Flow out from the 3rd interface 53, the coolant flow out from the coolant of second interface 52 outflow and from the 3rd interface 53 flows to corresponding respectively
In first indoor heat exchanging part 31 and the second indoor heat exchanging part 32, and carry out heat exchange with to room with indoor environment independently of one another
Interior environment refrigeration, the two-way coolant after heat exchange is respectively from the corresponding first indoor heat exchanging part 31 and the second indoor heat exchanging part 32
Flow out, and flow to the first cylinder 11 and the second cylinder respectively respectively through corresponding first air entry 14 and the second air entry 15
12；Two-way coolant respectively in corresponding first cylinder 11 and the second cylinder 12 independent compression to form the cold of High Temperature High Pressure respectively
Matchmaker, the two-way coolant after compression can flow to air vent 13 from the first cylinder 11 and the second cylinder 12 respectively, and simultaneously from air vent
13 discharge duplex cylinder compressors 1, 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 passes through to arrange the first cylinder 11 and the second cylinder
12, and so that the first cylinder 11 is connected 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 being conducive to improving the efficiency of duplex cylinder compressor 1
Ratio reduces the power consumption of duplex cylinder compressor 1；On the other hand pass through to arrange gas-liquid separator 5, and so that indoor heat exchanger assembly 3 is included
First indoor heat exchanging part 31 and the second indoor heat exchanging part 32, make the of the first indoor heat exchanging part 31 and gas-liquid separator 5
Two interfaces 52 are connected, and so that the second indoor heat exchanging part 32 is connected with the 3rd interface 53 of gas-liquid separator 5, thus gas-liquid can be easy to
Gaseous coolant that separator 5 is isolated and liquid refrigerants separately flow to two indoor heat exchange of indoor heat exchanger assembly 3
Part, and independently carry out heat exchange with indoor environment in two of heat exchanger assembly 3 indoor heat exchanging part indoors, thus favorably
In the heat transfer effect improving indoor heat exchanger assembly 3, optimize the efficiency level of single cold type air-conditioner 100, good energy-conserving effect.
In some embodiments of the invention, duplex cylinder compressor 1 also includes the first reservoir 16, and the first reservoir 16 is located at
Outside housing, the first reservoir 16 is connected with the first air entry 14 and the first indoor heat exchanging part 31 respectively, thus, can be easy to from
The coolant that first indoor heat exchanging part 31 flows out carries out gas-liquid separation, flows to the in order to gaseous coolant through the first air entry 14
One cylinder 11 and liquid refrigerants is stored in the first reservoir 16, thus avoiding the liquid hammer to the first cylinder 11 for the liquid refrigerants.
Further, duplex cylinder compressor 1 also includes the second reservoir 17, and the second reservoir 17 is 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, flows to the second cylinder 12 and liquid in order to gaseous coolant through the second air entry 15
State coolant is stored in the second reservoir 17, thus avoiding the liquid hammer to the second cylinder 12 for the liquid refrigerants, 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 first reservoir 16 volume.
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, is less than the volume of the first reservoir 16 by making the volume of the second reservoir 17, not only
Can ensure to flow back to the coolant quantity of the first cylinder 11 and 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 are only for two
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 the second indoor heat exchanging part 32 are two parts of same heat exchanger, thus
Simple and reliable, and advantageously reduce cost.
The aspect such as the processing in view of the second cylinder 12 and the first cylinder 11 and manufacture, the first cylinder 11 and the second cylinder 12
Volume ratio span be 1～10.
Specifically, as shown in figure 1, single cold type air-conditioner 100 still further comprises first sensor A, first sensor A position
For detecting temperature or the pressure of the coolant at air vent 13 at air vent 13.Alternatively, first sensor A passes for pressure
Sensor or temperature sensor.
Specifically, single cold type air-conditioner 100 still further comprises second sensor B, and it is indoor that second sensor B is located at first
Heat exchanging part 31 or be located in the second indoor heat exchanging part 32 for detecting temperature or the pressure of corresponding coolant.Alternatively,
Second sensor B is pressure transducer or temperature sensor.
Structure below with reference to the single cold type air-conditioner 100 to one specific embodiment of the present invention for the Fig. 1 is described in detail.
As shown in figure 1, the single cold type air-conditioner 100 of the present embodiment includes duplex cylinder compressor 1, outdoor heat exchanger 2, gas-liquid are divided
From device 5 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 shown in figure 1, housing is provided with air vent 13, the first air entry 14 and the second air entry 15, the first cylinder 11
Air intake passage is connected with the first air entry 14, and the air intake passage of the second cylinder 12 is connected with the second air entry 15, 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 shown in figure 1, the first end of outdoor heat exchanger 2 is connected with air vent 13, the second of outdoor heat exchanger 2
The first end holding restricting element 4 adjustable with flow degree is connected, and restricting element 4 can carry out reducing pressure by regulating flow to flowing through its coolant.
As shown in figure 1, gas-liquid separator 5 includes first interface 51 to the 3rd interface 53, wherein first interface 51 and throttling
Second end of element 4 is connected, and coolant can achieve the separation of gaseous coolant and liquid refrigerants in gas-liquid separator 5.Indoor heat exchange
Device assembly 3 includes the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32, and the two ends of the first indoor heat exchanging part 31 are divided
Be not connected with the second interface 52 of the first air entry 14 and gas-liquid separator 5, the two ends of the second indoor heat exchanging part 32 respectively with
Second air entry 15 is connected with the 3rd interface 53 of gas-liquid separator 5.Restricting element 4 is electric expansion valve.
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 located in the casing of same indoor set.
Inventor, in practical study, adopts air-conditioner to do multigroup experiment to verify the first cylinder 11 and the second cylinder 12
Volume ratio and duplex cylinder compressor 1 efficiency lifting than between relation.
| First cylinder and the second cylinder ratio | Efficiency lifts (%) |
| 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 whole machine is with now
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 the restricting element of single cold type air-conditioner is adjustable, and the flow degree of certain restricting element can also be non-adjustable
's.
Specifically, when restricting element flow degree can timing, in refrigerating operaton according to the inspection to the first detection object
Survey result and adjust the flow degree of the adjustable restricting element of flow degree to setting flow degree；Wherein first detection object includes outdoor ring
At least one of border temperature, pressure at expulsion of the running frequency of duplex cylinder compressor, the delivery temperature of air vent and air vent.Example
As single cold type air-conditioner includes controller, and controller can be adjustable according to the testing result adjustment flow degree of the first detection object
The flow degree of restricting element is to setting flow degree.
In some embodiments of the invention, the first detection object is outdoor environment temperature T4, and outdoor environment temperature is preset
Multiple outdoor temperatures are interval, the flow degree of the different restricting elements of the interval correspondence of each outdoor temperature, arrived according to actually detected
The flow angle value of the interval corresponding restricting element of outdoor temperature that outdoor environment temperature value is located adjusts the flow degree of restricting element.
Specifically, during refrigeration, the concrete condition of the flow degree of the interval corresponding restricting element of different outdoor temperatures 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, the first detection object is outdoor environment temperature T4 and running frequency F, first according to outdoor
Ambient temperature and running frequency are calculated the setting flow degree of restricting element, then according to setting flow degree adjustment restricting element
Flow degree.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 calculating is more than the throttling unit of collection
When the actual flow of part is spent, 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 this coefficient
Corresponding parameter no affects on the flow degree of restricting element.For example in refrigeration, outdoor environment temperature is detected and be 35 DEG C, compression
Machine running frequency is 58Hz, sets a1=1, b1=1.6, c1=6.Single cold type air-conditioner is according to the frequency collecting and T4 first
Value, the flow degree calculating restricting element should be 120, and the flow degree of adjustment restricting element is to 120.
In other specific examples of the present invention, the first detection object is outdoor environment temperature T4, running frequency F and row
Atmospheric pressure；Or the first detection object is outdoor environment temperature T4, running frequency F and delivery temperature, first according to outdoor environment
Temperature T4 and running frequency F are calculated setting pressure at expulsion or set delivery temperature, then according to the actually detected row arriving
Atmospheric pressure or delivery temperature adjust the flow degree of restricting element so that the pressure at expulsion detecting or delivery temperature reach
Set pressure at expulsion or set delivery temperature.Thus, simple and reliable.
Further, after the flow degree of restricting element meets condition, can be after running the n second, detection first inspection again
Survey object, then adjust the flow degree of restricting element according to testing result, so repeat.Certainly repeat condition not limited to this, example
As can be again detected the first detection object after receiving the operational order of user, then throttling is adjusted according to testing result
The flow degree of element.
When the flow degree of restricting element is fixing, according to the compressor operation parameters detecting and/or outdoor environment temperature
The running frequency of adjustment duplex cylinder compressor includes running current, pressure at expulsion, row to meeting condition, wherein compressor operation parameters
At least one of temperature degree；In other words, the running frequency according to the testing result adjustment duplex cylinder compressor to detection object, its
Middle detection object includes outdoor environment temperature, the delivery temperature of air vent, the pressure at expulsion of air vent, the operation of duplex cylinder compressor
At least one of electric current.Herein it should be noted that the flow degree fixation of restricting element refers to the flow degree of restricting element not
Adjustable.
In some embodiments of the invention, when the running frequency of duplex cylinder compressor adjust to meet condition after, Ke Yi
Again compressor operation parameters and/or outdoor environment temperature is detected, then according to the testing result again detecting after running the n second
The running frequency of adjustment compressor, so repeats.Certainly repeat condition not limited to this, for example, can receive the operation of user
After instruction, detection compressor operation parameters and/or outdoor environment temperature again, then adjusted according to the testing result again detecting
The running frequency of whole compressor.
In the specific example of the present invention, during single cold type air-conditioner runs, if user's shutdown is detected referred to
Order or indoor environment temperature reach design temperature, and compressor is out of service.
In some embodiments of the invention, default first multiple different delivery temperatures are interval, multiple delivery temperature areas
Between corresponding running frequency regulating command different, then detection delivery temperature the row that is located according to the delivery temperature detecting
The corresponding regulating command of gas temperature range adjusts running frequency.Wherein regulating command can include frequency reducing, raising frequency, keep frequency,
The instructions such as shutdown, releasing frequency limitation.Thus adjusting the running frequency of compressor by detecting delivery temperature, can be directly anti-
Answer the running status of system it is ensured that system operation is in suitable parameter area, improve air-conditioner reliability of operation further.
Need to illustrate, the running frequency that releasing frequency limitation refers to compressor is unrestricted, need not adjust compressor
Running frequency.Such as air-conditioner start refrigerating operaton, detects delivery temperature TP in running, sets following regulation and refers to
Order：115 DEG C≤TP, shut down；110℃≤TP<115 DEG C, it is downconverted to TP<110℃；105℃≤TP<110 DEG C, frequency keeps；TP<
105 DEG C, release frequency limitation.Then corresponding regulating command is executed according to actually detected delivery temperature TP arriving, adjusting
Detect TP after one-tenth again, terminate to judge if meeting and adjusting, after running the n second, delivery temperature TP is detected again, repeats to sentence
Disconnected.While running n second, if user's shutdown command is detected or design temperature reaches, terminate to run.
In some embodiments of the invention, multiple outdoor temperatures intervals and refrigeration stoppage protection electric current, multiple rooms are preset
The different limit frequency protective current of outer temperature range correspondence.Detect outdoor environment temperature first, then according to the outdoor ring detecting
The outdoor temperature interval that border temperature is located obtains corresponding limit frequency protective current, and adjustment running frequency is so that the actually detected fortune arriving
Row electric current reaches corresponding limit frequency protective current, and the running current wherein detecting when cooling is more than refrigeration stoppage protection electric current
When then directly shut down.
Specifically, during refrigeration, the interval and corresponding corresponding relation limiting frequency protective current of multiple outdoor temperatures can institute as follows
Show：As 50.5 DEG C of T4 ＞, limit frequency protective current is CL5；As 45.5 DEG C of 49.5 DEG C >=T4 ＞, limit frequency protective current is CL4；
As 41 DEG C of 44.5 DEG C >=T4 ＞, limit frequency protective current is CL3；As 33 DEG C of 40 DEG C >=T4 ＞, limit frequency protective current is CL2；When
32 >=T4 DEG C, limit frequency protective current is CL1.Wherein CL5, CL4, CL3, CL2, CL1 and refrigeration stoppage protection electric current concrete number
Value specifically can limit according to practical situation, and here does not limit.
The outdoor environment temperature T4 for example detecting when refrigerating operaton is located outside 33 DEG C of temperature range 40 DEG C >=T4 ＞
Then it represents that running current does not allow more than limit frequency protective current CL2 when interior, if it does, running current will be downconverted to be less than limit
Frequency protective current CL2.
In some embodiments of the invention, multiple outdoor temperatures can be preset interval, multiple outdoor temperatures are interval corresponding
Different setting running frequencies, transports according to interval corresponding setting of outdoor temperature that the actually detected outdoor environment temperature arriving is located
Line frequency adjusts the running frequency of compressor.
In some embodiments of the invention, default first multiple different pressures at expulsion are interval, multiple pressure at expulsion areas
Between corresponding running frequency regulating command different, then detection pressure at expulsion the row that is located according to the pressure at expulsion detecting
The interval corresponding regulating command of atmospheric pressure adjusts running frequency.Wherein regulating command can include frequency reducing, raising frequency, keep frequency,
The instructions such as shutdown, releasing frequency limitation.Thus adjusting the running frequency of compressor by detecting pressure at expulsion, can be directly anti-
Answer the running status of system it is ensured that system operation is 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
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
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
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not 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 combine.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be 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, changes, replacing and modification.
Claims (9)
1. a kind of single cold type air-conditioner is it is characterised in that include：
Duplex cylinder compressor, described duplex cylinder compressor includes housing, the first cylinder and the second cylinder, and described housing is provided with aerofluxuss
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 is connected 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, the first end of described outdoor heat exchanger is connected with described air vent, the second end of described outdoor heat exchanger
It is connected with the first end of restricting element；
Gas-liquid separator, described gas-liquid separator includes first interface to the 3rd interface, described first interface and described throttling unit
Second end of part is 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 the second interface of described first air entry and described gas-liquid separator respectively,
Two ends described 3rd interface with described second air entry and described gas-liquid separator respectively of the described second indoor heat exchanging part
It is connected.
2. single cold type air-conditioner according to claim 1 is 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.
3. single cold type air-conditioner according to claim 2 is 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.
4. single cold type air-conditioner according to claim 3 is it is characterised in that the volume of described second reservoir is less than described
The volume of the first reservoir.
5. single cold type air-conditioner according to claim 1 is it is characterised in that described restricting element is electric expansion valve, hair
Tubule or choke valve.
6. single cold type air-conditioner according to claim 1 is 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 described first indoor heat exchanging part and described second indoor heat exchanging part
It is divided into two parts of same heat exchanger.
7. the single cold type air-conditioner according to any one of claim 1-6 is it is characterised in that described first cylinder and described
The span of the volume ratio of the second cylinder is 1～10.
8. a kind of control method of the single cold type air-conditioner according to any one of claim 1-7 is it is characterised in that described
The flow degree of restricting element is adjustable, in refrigerating operaton according to adjustable to the testing result of the first detection object adjustment flow degree
The flow degree of restricting element is to setting flow degree；
Wherein said first detection object includes the aerofluxuss temperature of outdoor environment temperature, the running frequency of duplex cylinder compressor, air vent
At least one of pressure at expulsion of degree and air vent.
9. a kind of control method of the single cold type air-conditioner according to any one of claim 1-7 is it is characterised in that described
The flow degree of restricting element is fixed, and adjusts described twin-tub according to the compressor operation parameters detecting and/or outdoor environment temperature
To meeting condition, wherein said compressor operation parameters include running current, pressure at expulsion, aerofluxuss temperature to the running frequency of compressor
At least one of degree.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2016106257526 | 2016-07-29 | ||
| CN201610625752 | 2016-07-29 | ||
| CN201610626395 | 2016-07-29 | ||
| CN2016106263955 | 2016-07-29 |
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| CN106482218A true CN106482218A (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610873145.1A Pending CN106482218A (en) | 2016-07-29 | 2016-09-29 | Single cold type air-conditioner and control method |
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Cited By (1)
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| CN108489164A (en) * | 2018-03-30 | 2018-09-04 | 北京新能源汽车股份有限公司 | Control method and device of electronic expansion valve and electronic equipment |
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