CN106403342A - Single cooling type air conditioner and control method - Google Patents
Single cooling type air conditioner and control method Download PDFInfo
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- CN106403342A CN106403342A CN201610866888.6A CN201610866888A CN106403342A CN 106403342 A CN106403342 A CN 106403342A CN 201610866888 A CN201610866888 A CN 201610866888A CN 106403342 A CN106403342 A CN 106403342A
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- Prior art keywords
- cylinder
- heat exchanging
- exchanging part
- indoor heat
- heat exchange
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/074—Details of compressors or related parts with multiple cylinders
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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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a single cooling type air conditioner and a control method. The single cooling type air conditioner comprises a double-cylinder compressor, an outdoor heat exchanger assembly and an indoor heat exchanger assembly, wherein the double-cylinder compressor comprises a shell, a first cylinder and a second cylinder; the value range of the volume ratio of the first cylinder to the second cylinder is 1 to 20; a first end of a first outdoor heat exchange part and a first end of a second outdoor heat exchange part of the outdoor heat exchanger assembly are connected with an exhaust hole; the two ends of a first indoor heat exchange part of the indoor heat exchanger assembly are respectively connected with a first air suction hole and a second end of the first outdoor heat exchange part; the two ends of a second indoor heat exchange part are respectively connected with a second air suction hole and a second end of the second outdoor heat exchange part; and a throttling element is in series connection between the first indoor heat exchange part and the first outdoor heat exchange part and between the second indoor heat exchange part and the second outdoor heat exchange part. According to the single cooling type air conditioner, the energy efficiency level is high, and the energy saving effect is good.
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 exchange device assembly, described outdoor heat exchange device assembly the first outdoor heat exchange part and
Two outdoor heat exchange parts, the first end of the first end of described first outdoor heat exchange part and described second outdoor heat exchanging part all with
Described air vent is connected.Indoor heat exchanger assembly, described indoor heat exchanger assembly includes the first indoor heat exchanging part and second Room
Interior heat exchanging part, the two ends of described first indoor heat exchanging part respectively with described first air entry and the first outdoor heat exchange part
Second end is connected, the two ends of described second indoor heat exchanging part respectively with described second air entry and the second outdoor heat exchanging part
Second end is connected, described first indoor heat exchanging part and described first outdoor heat exchange part, the described second indoor heat exchanging part and
All it is in series with a restricting element between described second outdoor heat exchanging part.
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 include the first indoor heat exchanging part and the second indoor heat exchanging part by making indoor heat exchanger assembly, make outdoor
Heat exchanger assembly includes the first outdoor heat exchange part and the second outdoor heat exchanging part, makes the first indoor heat exchanging part outdoor with first
All connect between heat exchanging part and between the second indoor heat exchanging part and the second outdoor heat exchanging part a restricting element, thus
The coolant after the throttling of two restricting elements can be easy to and flow to the first indoor heat exchanging part and the second indoor heat exchanging part respectively, one
Aspect is reduced due to the content of the gaseous coolant in the two-way coolant after throttling, and another aspect two-way coolant is respectively corresponding the
Carry out heat exchange with indoor environment independently of one another, thus being conducive to improving in one indoor heat exchanging part and the second indoor heat exchanging part
The heat transfer effect of indoor heat exchanger assembly, optimizes the efficiency level of single cold type air-conditioner, good energy-conserving effect.
According to some embodiments of the present invention, described duplex cylinder compressor also includes the first reservoir, described first reservoir
It is located at outside described housing, described first reservoir is 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.
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, described first outdoor heat exchange part and described second outdoor heat exchanging part are two
Individual independent heat exchanger, or described first outdoor heat exchange part and described second outdoor heat exchanging part be same heat exchanger
Two parts.
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 according to embodiments of the present invention, the flow degree of at least one restricting element is adjustable, according to
The flow degree of the adjustable restricting element of flow degree is adjusted to predetermined amount of flow degree, wherein detection object to the testing result of detection object
Including in outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of air vent, the pressure at expulsion of air vent extremely
Few one.
Single cold type air-conditioner control method according to embodiments of the present invention, is conducive to improving the efficiency of air-conditioner.
The control method of single cold type according to embodiments of the present invention, the flow degree of two restricting elements is fixed, according to detection
To compressor operation parameters and/or outdoor environment temperature adjust the running frequency of described duplex cylinder compressor to meeting condition, its
Described in compressor operation parameters include at least one of running current, pressure at expulsion, delivery temperature.
Single cold type air-conditioner control method according to embodiments of the present invention, is conducive to improving the efficiency of air-conditioner.
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 exchange device assembly 2；First outdoor heat exchange part 21；Second outdoor heat exchanging part 22；
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.
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 assembly 2 and indoor heat exchanger assembly 3.It is understood that outdoor heat exchange device assembly 2 is condenser assembly, indoor heat exchange
Device assembly 3 is evaporator assemblies.Specifically, outdoor heat exchange device assembly 2 is located in the casing of an off-premises station, indoor heat exchanger group
Part 3 is located in 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, outdoor heat exchange device assembly 2 includes the first outdoor heat exchange part 21 and the second outdoor heat exchange
Part 22.Wherein, the first end (for example, the left end shown in Fig. 1) of the first outdoor heat exchange part 21 and the second outdoor heat exchanging part
The first end (for example, the left end shown in Fig. 1) dividing 22 is all connected with air vent 13.Thus, the coolant discharged from air vent 13
The first outdoor heat exchange part 21 and the second outdoor heat exchanging part can be flowed to respectively, thus being conducive to raising outdoor environment to change with outdoor
The heat transfer effect of hot device assembly 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 interior is changed
The two ends of hot part 31 are connected with the second end of the first air entry 14 and the first outdoor heat exchange part 21 respectively, the second indoor heat exchange
The two ends of part 32 are connected with the second end of the second air entry 15 and the second outdoor heat exchanging part 22 respectively.Thus being formed complete
Coolant loop, in order to the circulation of coolant.
Specifically, as shown in figure 1, being in series with one between the first indoor heat exchanging part 31 and the first outdoor heat exchange part 21
Restricting element 4b, is in series with a restricting element 4a between the second indoor heat exchanging part 32 and the second outdoor heat exchanging part 22.By
This, the coolant flowing out from the first outdoor heat exchange part 21 and the second outdoor heat exchanging part 22 respectively can flow to corresponding two respectively
Restricting element 4a, 4b, coolant, after two restricting elements 4a, 4b respectively reducing pressure by regulating flow, flows to corresponding first interior respectively and changes
Hot part 31 and the second indoor heat exchanging part 32, on the one hand due to two-way coolant after throttling respectively through two restricting elements 4a, 4b
In the content of gaseous coolant reduce, another aspect two-way coolant is respectively in the corresponding first indoor heat exchanging part 31 and second Room
Carry out heat exchange with indoor environment independently of one another, thus being conducive to improving changing of indoor heat exchanger assembly 3 in interior heat exchanging part 32
Thermal effect, optimizes the efficiency level of single cold type air-conditioner 100.
Alternatively, the flow degree of two restricting elements 4a, 4b is adjustable or flow degree of two restricting elements 4a, 4b all can not
Adjust, or in two restricting elements 4a, 4b one of restricting element 4a, 4b flow degree adjustable, and another restricting element 4a,
The flow degree of 4b is fixed.Such as restricting element 4b flow between the first indoor heat exchanging part 31 and the first outdoor heat exchange part 21
Degree is adjustable, and the restricting element 4a flow degree between the second indoor heat exchanging part 32 and the second outdoor heat exchanging part 22 is fixed；Or
In other embodiments, the restricting element 4b flow degree between the first indoor heat exchanging part 31 and the first outdoor heat exchange part 21 is solid
Fixed, the restricting element 4a flow degree between the second indoor heat exchanging part 32 and the second outdoor heat exchanging part 22 is adjustable.Specifically, may be used
By adjusting the flow degree of flow degree adjustable restricting element 4a, 4b, adjust the temperature and pressure flowing through its coolant further,
Thus being conducive to improving further the heat transfer effect of interior corresponding with flow degree adjustable restricting element 4a, 4b heat exchanging part.
Alternatively, flow degree adjustable restricting element 4a, 4b are electric expansion valve, the fixing restricting element 4a of flow degree,
4b is capillary tube or choke valve.Thus, structure is simple.
Specifically, as shown in figure 1, when single cold type air-conditioner 100 freezes, from air vent 13 row of duplex cylinder compressor 1
The coolant going out can flow to the first outdoor heat exchange part 21 and the second outdoor heat exchanging part 22 respectively, and in the first outdoor heat exchange part
21 and second carry out heat exchange in outdoor heat exchanging part 22 independently of one another with outdoor environment, and subsequent coolant is from the first outdoor heat exchange portion
Points 21 and second outdoor heat exchanging part 22 flow out, and flow to two restricting elements 4a, 4b respectively, two-way coolant is through corresponding throttling
After element 4a, 4b reducing pressure by regulating flow, flow to respectively in the corresponding first indoor heat exchanging part 31 and the second indoor heat exchanging part 32, and
Carry out heat exchange with indoor environment to freeze to indoor environment independently of one another, the two-way coolant after heat exchange is respectively from corresponding first
Indoor heat exchanging part 31 and the second indoor heat exchanging part 32 flow out, and respectively through corresponding first air entry 14 and the second air-breathing
Mouth 15 flows to the first cylinder 11 and the second cylinder 12 respectively；Two-way coolant is respectively in corresponding first cylinder 11 and the second cylinder 12
, to form the coolant of High Temperature High Pressure respectively, the two-way coolant after compression can be respectively from the first cylinder 11 and the second gas for interior independent compression
Cylinder 12 flows to air vent 13, and discharges duplex cylinder compressor 1 from air vent 13, thus forming the system of single cold type air-conditioner 100 simultaneously
SAPMAC method.
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 include the first indoor heat exchanging part 31 by making indoor heat exchanger assembly 3
With the second indoor heat exchanging part 32, outdoor heat exchange device assembly 2 is made to include the first outdoor heat exchange part 21 and the second outdoor heat exchanging part
Divide 22, make between the first indoor heat exchanging part 31 and the first outdoor heat exchange part 21 and the second indoor heat exchanging part 32 and second
All connect between outdoor heat exchange part 22 restricting element 4a, a 4b, thus can be easy to after two restricting element 4a, 4b throttlings
Coolant flow to the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32 respectively, on the one hand because the two-way after throttling is cold
The content of the gaseous coolant in matchmaker reduces, and another aspect two-way coolant is respectively in the corresponding first indoor heat exchanging part 31 and second
Carry out heat exchange with indoor environment independently of one another, thus being conducive to improving changing of indoor heat exchanger assembly in indoor heat exchanging part 32
Thermal effect, optimizes 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 outdoor heat exchange part 21 and the second outdoor heat exchanging part 22 are only for two
Vertical heat exchanger, thus, is conducive to improving the heat transfer effect of outdoor heat exchange device assembly 2.Certainly, the invention is not restricted to this, at it
In its embodiment, the first outdoor heat exchange part 21 and the second outdoor heat exchanging part 22 are two parts of same heat exchanger, thus
Simple and reliable, 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 is it is preferable that the first cylinder 11 and
The span of the volume ratio of two cylinders 12 is 1～10.Thus being conducive to optimizing the structure of duplex cylinder compressor 1 further.
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 exchange device assembly 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 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, outdoor heat exchange device assembly 2 includes the first outdoor heat exchange part 21 and the second outdoor heat exchange
Part 22, the first end of the first end of the first outdoor heat exchange part 21 and the second outdoor heat exchanging part 22 all with air vent 13 phase
Even, indoor heat exchanger assembly 3 includes the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32, the first indoor heat exchanging part
31 two ends are connected with the second end of the first air entry 14 and the first outdoor heat exchange part 21 respectively, the second indoor heat exchanging part 32
Two ends be connected with the second end of the second air entry 15 and the second outdoor heat exchanging part 22 respectively.First outdoor heat exchange part 21 He
All it is in series between first indoor heat exchanging part 31 and between the second outdoor heat exchanging part 22 and the second indoor heat exchanging part 32
One restricting element 4a, 4b.In two restricting elements 4a, 4b, the flow degree of one of restricting element 4a, 4b is adjustable, another
The flow degree of restricting element 4a, 4b is fixed.Flow degree adjustable restricting element 4a, 4b are electric expansion valve, and flow degree is fixed
Restricting element 4a, 4b are capillary tube.
First outdoor heat exchange part 21 and the second outdoor heat exchanging part 22 are two independent heat exchangers, the first indoor heat exchange
Part 31 and the second indoor heat exchanging part 32 are two independent heat exchangers.Two outdoor heat exchange parts are located at same off-premises station
Interior, two indoor heat exchanging part are located in 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 two restricting elements of single cold type air-conditioner is all adjustable, and the flow degree of certain restricting element can also be
All nonadjustable.Or, in further embodiments, the flow degree of one of two restricting elements restricting element is adjustable, separately
The flow degree of one restricting element is fixed.Herein it should be noted that the flow degree fixation of restricting element refers to restricting element
Flow degree is non-adjustable.
When at least one restricting element flow degree can timing, according to can to the testing result of detection object adjustment flow degree
To predetermined amount of flow degree, wherein detection object includes the fortune of outdoor environment temperature, duplex cylinder compressor to the flow degree of the restricting element adjusted
At least one of pressure at expulsion of line frequency, the delivery temperature of air vent and air vent.For example, single cold type air-conditioner includes controlling
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 have in two restricting elements 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, the detection object corresponding to two restricting elements identical can also be and differ.For example can basis
The testing result of the first detection object and the second detection object is adjusted respectively with the flow degree of two restricting elements 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 of pressure at expulsion of the delivery temperature of QI KOU and air vent.It is understood that the first detection object and second
The identical parameter referring to for adjusting needed for two restricting elements of detection object is identical, and the first detection object and second detects
Object difference refers to for adjusting the parameter difference needed for two restricting elements.
In some embodiments of the invention, when two restricting elements flow degree all can timing, two restricting elements pair
The detection object answered is the first detection 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 corresponding detection object of this restricting element be outdoor environment temperature.
Outdoor environment temperature presets multiple outdoor temperatures intervals respectively, the different throttling unit of the interval correspondence of each outdoor temperature
The flow degree of part, the stream of the interval corresponding restricting element of outdoor temperature being located according to the actually detected outdoor environment temperature value arriving
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 interval corresponding restricting element of outdoor temperature that the actually detected outdoor environment temperature value arriving is located adjusts two
The flow degree of restricting element；When the said one restricting element in two restricting elements flow degree can timing, according to actual inspection
The flow angle value of the interval corresponding restricting element of outdoor temperature that the outdoor environment temperature value measuring is located adjusts one section
The flow degree of fluid 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：
In further embodiments, when two restricting elements flow degree all can timing, the detection of two restricting elements is right
As be the first detection object and the second detection object be outdoor environment temperature T4 and running frequency F；When having in two restricting elements
The flow degree of one restricting element can timing, the corresponding detection object of this restricting element be outdoor environment temperature T4 and running frequency
F.
It is calculated the setting flow degree of restricting element first according to outdoor environment temperature and running frequency, then basis sets
The flow degree of adjustment restricting element is measured in constant current.That is, 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 adjust two according to setting flow degree
The flow degree of restricting element；When have in two restricting elements 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 adjust one section according to setting flow degree
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 calculating is more than the throttling unit of collection
When the actual flow of part is spent, 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
When it was demonstrated that the corresponding parameter of this coefficient no affects on the flow degree of restricting element.For example in refrigeration, outdoor environment temperature is detected
Spend for 35 DEG C, compressor operating frequency is 58Hz, sets a1=1, b1=1.6, c1=6.Single cold type air-conditioner first is according to collection
The frequency arriving and T4 value, the flow degree calculating restricting element should be 120, the flow of the adjustment adjustable restricting element of flow degree
Spend to 120.
In some specific examples of the present invention, the flow degree of two restricting elements is all adjustable, and two restricting elements pair
The detection object answered is the first detection 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, root first
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 detecting or delivery temperature adjust two restricting elements flow degree so that the pressure at expulsion that detects or
Person's delivery temperature reaches setting pressure at expulsion or sets delivery temperature.Thus, simple and reliable.
In some specific examples of the present invention, in two restricting elements, there is the flow degree of a restricting element 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, are calculated setting row according to outdoor environment temperature T4 and running frequency F first
Atmospheric pressure or setting delivery temperature, then adjust restricting element according to the actually detected pressure at expulsion arriving or delivery temperature
Flow degree is so that the pressure at expulsion detecting or delivery temperature reach setting 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 all adjustable, and one of restricting element
Corresponding first detection object is outdoor environment temperature T4, and outdoor environment temperature presets multiple outdoor temperatures intervals respectively, each
The flow degree of the different restricting element of the interval correspondence of outdoor temperature, can be according to the adjustment of the actually detected outdoor environment temperature arriving
The flow degree of one of restricting element；Corresponding second detection object of another restricting element is outdoor environment temperature and operation
Frequency, can first according to outdoor environment temperature T4 and running frequency F are calculated another restricting element setting flow
Degree, then according to the flow degree setting another restricting element described in the adjustment of flow degree.
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 |
Relational expression between the flow degree LA_cool_1 of restricting element and outdoor environment temperature T4 and running frequency F is：
LA_cool_1=a1·F+b1T4+c1, when the flow degree LA_cool_1 calculating is more than the actual flow degree of the restricting element of collection
When, 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 the corresponding parameter of this coefficient is to section
The flow degree of fluid element no affects.
Further, after the flow degree of restricting element meets condition, can be after running the n second, detection detection is right again
As then adjusting the flow degree of restricting element according to testing result, so repeating.Certainly repeat condition not limited to this, for example may be used
, after receiving the operational order of user, again to detect detection object, then to adjust the stream of restricting element according to testing result
Measure.
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, according to the testing result adjustment duplex cylinder compressor to detection object during refrigerating operaton
Running frequency, wherein detection object include outdoor environment temperature, the delivery temperature of air vent, the pressure at expulsion of air vent, twin-tub
At least one of running current of compressor.
Further, when the running frequency of duplex cylinder compressor adjust to meet condition after, can run the n second after again examine
Measured compressed machine operational factor and/or outdoor environment temperature, then adjust the fortune of compressor according to the testing result again detecting
Line frequency, so repeats.Certainly repeat condition not limited to this, for example, can examine after receiving the operational order of user again
Measured compressed machine operational factor and/or outdoor environment temperature, then adjust the fortune of compressor according to the testing result again detecting
Line frequency.
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 (10)
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 exchange device assembly, described outdoor heat exchange device assembly the first outdoor heat exchange part and the second outdoor heat exchanging part, described
The first end of the first outdoor heat exchange part is all connected with described air vent with the first end of the described second outdoor heat exchanging part.
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 end of described first air entry and the first outdoor heat exchange part respectively,
The two ends of the described second indoor heat exchanging part are connected with the second end of described second air entry and the second outdoor heat exchanging part respectively,
Described first indoor heat exchanging part and described first outdoor heat exchange part, the described second indoor heat exchanging part and described second outdoor
All it is in series with a restricting element between heat exchanging part.
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. heating and air conditioner according to claim 1 is it is characterised in that described first outdoor heat exchange part and described
Two outdoor heat exchange parts are two independent heat exchangers, or described first outdoor heat exchange part and described second outdoor heat exchanging part
It is divided into two parts of same heat exchanger.
7. 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.
8. the single cold type air-conditioner according to any one of claim 1-7 is it is characterised in that described first cylinder and described
The span of the volume ratio of the second cylinder is 1～10.
9. a kind of control method of the single cold type air-conditioner according to any one of claim 1-8 is 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 includes outdoor environment temperature, the running frequency of duplex cylinder compressor, air vent
Delivery temperature and air vent at least one of pressure at expulsion.
10. a kind of control method of the single cold type air-conditioner according to any one of claim 1-8 is it is characterised in that two
The flow degree of individual restricting element is fixed, described double according to the compressor operation parameters detecting and/or outdoor environment temperature adjustment
To meeting condition, wherein said compressor operation parameters include running current, pressure at expulsion, aerofluxuss to the running frequency of cylinder compressor
At least one of temperature.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610626393 | 2016-07-29 | ||
| CN2016106263940 | 2016-07-29 | ||
| CN201610626394 | 2016-07-29 | ||
| CN2016106263936 | 2016-07-29 | ||
| CN201610626391 | 2016-07-29 | ||
| CN2016106263917 | 2016-07-29 |
Publications (1)
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| CN106403342A true CN106403342A (en) | 2017-02-15 |
Family
ID=59229353
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610866888.6A Pending CN106403342A (en) | 2016-07-29 | 2016-09-29 | Single cooling type air conditioner and control method |
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| CN (1) | CN106403342A (en) |
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| CN110748965A (en) * | 2019-11-14 | 2020-02-04 | 珠海格力电器股份有限公司 | Air conditioning system and air conditioning system control method |
| CN112444005A (en) * | 2020-12-04 | 2021-03-05 | 珠海格力电器股份有限公司 | Heat pump system, air conditioner, and method for controlling heat pump system |
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| CN1769710A (en) * | 2004-11-01 | 2006-05-10 | Lg电子株式会社 | Apparatus for changing capacity of multi-stage rotary compressor |
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Application publication date: 20170215 |