CN205641637U - Single -cooling air conditioner - Google Patents

Abstract

The utility model discloses a single -cooling air conditioner, include: double -cylinder compressor, outdoor heat exchanger, indoor heat exchanger, vapour and liquid separator, refrigerant radiator, the induction port and the first reservoir intercommunication of first cylinder, the value range of the exhaust volume ratio of second cylinder and first cylinder is 1%~10%, vapour and liquid separator includes gas outlet, first interface and second interface, and the gas outlet links to each other with the second cylinder, and it has an aperture adjustable throttling element to establish ties between first interface and the outdoor heat exchanger, and it has the 2nd throttling element of fixed aperture to establish ties between second interface and the indoor heat exchanger. The refrigerant radiator is established ties between a throttling element and first interface, perhaps the refrigerant radiator is established ties between the 2nd throttling element and second interface. The utility model discloses a single -cooling air conditioner effectively improves the air conditioner efficiency.

Description

Single cold type air-conditioner

Technical field

This utility model relates to refrigerating field, especially relates to a kind of single cold type air-conditioner.

Background technology

Current air-conditioning refrigeration system is not optimized cyclic design to the gaseous refrigerant after throttling and before entering vaporizer, Cause gaseous refrigerant to affect evaporator heat exchange performance, and increase compressor compresses power consumption, thus have influence on energy efficiency of air conditioner Level.Air injection enthalpy-increasing and Two-stage Compression technology can improve air conditioning system heating capacity level under low temperature and ultralow temperature, but For the cooling condition that air-conditioning is commonly used, efficiency promotes very limited.

Utility model content

One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.

To this end, the utility model proposes a kind of single cold type air-conditioner, energy efficiency of air conditioner can be effectively improved, effectively facilitate energy-conservation Reduce discharging.

Single cold type air-conditioner according to this utility model embodiment, including: duplex cylinder compressor, described duplex cylinder compressor includes shell Body, the first cylinder, the second cylinder and the first reservoir, described housing is provided with air vent, described first cylinder and described Two cylinders are respectively provided in described housing, and described first reservoir is located at outside described housing, the air entry of described first cylinder with Described first reservoir connection, the span of the delivery space ratio of described second cylinder and described first cylinder is 1%～10%； Outdoor heat exchanger and indoor heat exchanger, the first end of described outdoor heat exchanger is connected with described air vent, described indoor heat exchanger The first end be connected with described first reservoir；Gas-liquid separator, described gas-liquid separator includes gas outlet, first interface With the second interface, described gas outlet is connected with the air entry of described second cylinder, described first interface and described outdoor heat exchange Second end of device is connected, and described second interface is connected with the second end of described indoor heat exchanger, described first interface and described room It is in series with aperture adjustable first throttle element between external heat exchanger, connects between described second interface and described indoor heat exchanger There is the second section fluid element of fixing aperture；For the coolant radiator that electric control element is dispelled the heat, described coolant radiator string It is associated between described first throttle element and described first interface；Or described coolant radiator tandem is in described second throttling unit Between part and described second interface.

Single cold type air-conditioner according to this utility model embodiment, by arranging above-mentioned duplex cylinder compressor, can be effectively improved sky Adjust device efficiency, effectively facilitate energy-saving and emission-reduction, simultaneously by arranging gas-liquid separator, heat exchange efficiency can be improved, reduce compression Machine compression power consumption, improves air-conditioner ability and efficiency further, further through arranging coolant radiator, can enter electric control element Row effective temperature-reducing.

In embodiments more of the present utility model, described first throttle element is electric expansion valve, described second section fluid element For capillary tube or choke valve.

In embodiments more of the present utility model, between the air entry of described gas outlet and described second cylinder, it is in series with electricity Magnet valve.

In embodiments more of the present utility model, the span of gas-liquid separator volume is 100mL-500mL.

In embodiments more of the present utility model, described duplex cylinder compressor also includes the second reservoir being located at outside described housing, Described second reservoir is connected between the air entry of described gas outlet and described second cylinder.

Preferably, the volume of described first reservoir is more than the volume of the second reservoir.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the single cold type air-conditioner according to one embodiment of this utility model；

Fig. 2 is the schematic diagram of the single cold type air-conditioner according to another embodiment of this utility model；

Fig. 3 is the schematic diagram of the single cold type air-conditioner being provided with the second reservoir according to one embodiment of this utility model；

Fig. 4 is the schematic diagram of the single cold type air-conditioner being provided with the second reservoir according to another embodiment of this utility model；

Fig. 5 is the schematic diagram of the single cold type air-conditioner being provided with electromagnetic valve and the second reservoir according to this utility model embodiment；

Fig. 6 is the schematic diagram of the duplex cylinder compressor according to this utility model embodiment；

Fig. 7 is the flow chart of the control method during single cold type air-conditioner refrigeration according to this utility model embodiment.

Reference:

Single cold type air-conditioner 100,

Duplex cylinder compressor 1, housing the 10, first cylinder the 11, second cylinder the 12, first reservoir the 13, second reservoir 14, Air vent 15,

Outdoor heat exchanger 3, indoor heat exchanger 4,

Gas-liquid separator 5, gas outlet m, first interface f, the second interface g,

First throttle element 6, second section fluid element 7,

Coolant radiator 9,

Electromagnetic valve 20.

Detailed description of the invention

Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to The embodiment that accompanying drawing describes is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to of the present utility model Limit.

In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length Degree ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " perpendicular Directly ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or position relationship, be only for It is easy to describe this utility model and simplifying describe rather than instruction or the device of hint indication or element must have specifically Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or imply relatively important Property or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", " second " feature permissible Express or implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two Individual, such as two, three etc., unless otherwise expressly limited specifically.

In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", The term such as " fix " should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral； Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to pass through intermediary It is indirectly connected to, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction. For the ordinary skill in the art, concrete in this utility model of above-mentioned term can be understood as the case may be Implication.

The single cold type air-conditioner 100 according to this utility model embodiment, wherein single cold type is described in detail below with reference to Fig. 1-Fig. 6 Air-conditioner 100 has refrigeration mode.

As shown in figs 1 to 6, according to the single cold type air-conditioner 100 of this utility model embodiment, including: duplex cylinder compressor 1, Outdoor heat exchanger 3 and indoor heat exchanger 4, gas-liquid separator 5, first throttle element 6, second section fluid element 7 and coolant dissipate Hot device 9.Wherein duplex cylinder compressor 1 includes housing the 10, first cylinder the 11, second cylinder 12 and the first reservoir 13, shell Body 10 is provided with air vent 15, and the first cylinder 11 and the second cylinder 12 are respectively provided in housing 10, the first reservoir 13 Being located at outside housing 10, air entry and first reservoir 13 of the first cylinder 11 connect.It is to say, the first cylinder 11 He Second cylinder 12 carries out independent compression process, from first cylinder 11 discharge compression after coolant and discharge from the second cylinder 12 Compression after coolant be drained into housing 10 respectively in then discharge from air vent 15.

The span of the delivery space ratio of the second cylinder 12 and the first cylinder 11 is 1%～10%.Further, the second gas The span of the delivery space ratio of cylinder 12 and the first cylinder 11 is 1%～9%, it is preferable that the second cylinder 12 and the first gas The span of the delivery space ratio of cylinder 11 is 4%～9%.Such as second cylinder 12 and the delivery space ratio of the first cylinder 11 Value can be the parameter such as 4%, 5%, 8% or 8.5%.

First end of outdoor heat exchanger 3 is connected with air vent 15, the first end of indoor heat exchanger 4 and the first reservoir 13 phase Even.Gas-liquid separator 5 includes gas outlet m, first interface f and the second interface g, gas outlet m and the second cylinder 12 Air entry be connected, first interface f is connected with the second end of outdoor heat exchanger 3, the second interface g and indoor heat exchanger 4 Second end is connected, and is in series with aperture adjustable first throttle element 6 between first interface f and outdoor heat exchanger 3, and second connects The second section fluid element 7 of fixing aperture it is in series with between mouth g and indoor heat exchanger 4.Alternatively, first throttle element 6 is Electric expansion valve, second section fluid element 7 is capillary tube or choke valve, it is of course possible to be understood by, first throttle element 6 Can also is that other apertures adjustable element such as heating power expansion valve.

Coolant radiator 9 is for dispelling the heat to electric control element, and coolant radiator 9 is connected on first throttle element and first and connects Between mouth f；Or coolant radiator 9 is connected between second section fluid element 7 and the second interface g.It is understood that As long as the structure of coolant radiator 9 can be varied coolant that can circulate, such as coolant radiator 9 can include Wriggle the metal tube extended.

When single cold type air-conditioner 100 freezes, the High Temperature High Pressure coolant discharged from the air vent 15 of duplex cylinder compressor 1 is drained into Outdoor heat exchanger 3 carries out condensation heat radiation, from the liquid refrigerants of outdoor heat exchanger 3 discharge through the one of first throttle element 6 It is drained into gas-liquid separator 5 from first interface f after level reducing pressure by regulating flow and carries out gas-liquid separation, the intermediate pressure strength separated State coolant is drained in the second cylinder 12 from gas outlet m and is compressed.

The intermediate pressure liquid coolant discharged from the second interface g of gas-liquid separator 5 is through two grades of joints of second section fluid element 7 Heat exchange is carried out to reduce indoor environment temperature, cold from indoor heat exchanger 4 discharge in being drained into indoor heat exchanger 4 after stream blood pressure lowering Matchmaker is drained in the first reservoir 13, is compressed in the coolant of the first reservoir 13 discharge is drained into the first cylinder 11.

During refrigeration, when coolant radiator 9 is connected between first throttle element 6 and first interface f, from first throttle unit The coolant after a reducing pressure by regulating flow that part 6 is discharged is flowed in coolant radiator 9 to dispel the heat with electric control element, from The coolant that coolant radiator 9 flows out is drained in gas-liquid separator 5, such that it is able to reduce the temperature of electric control element.Work as coolant When radiator 9 is connected between second section fluid element 7 and the second interface g, from gas-liquid separator 5 discharge through a partial node Stream blood pressure lowering and in the liquid refrigerants of gas-liquid separation enters into coolant radiator 9 to dispel the heat with electric control element, thus can To reduce the temperature of electric control element.

Thus analyzing and understand, when single cold type air-conditioner 100 runs, the coolant of different pressures state has respectively entered the first gas In cylinder 11 and the second cylinder 12, the first cylinder 11 and the second cylinder 12 complete independently compression process, from the first cylinder 11 row Coolant after the compression gone out and the coolant after the compression that the second cylinder 12 is discharged mix in being discharged to housing 10 after from air vent 15 Discharging, simultaneously because the span of the delivery space ratio of the second cylinder 12 and the first cylinder 11 is 1%～10%, flow is relatively Less and the higher coolant of pressure state be drained into the second cylinder 12 that delivery space is less in be compressed, such that it is able to improve energy Effect, energy-saving and emission-reduction.

Simultaneously by being provided with gas-liquid separator 5 between outdoor heat exchanger 3 and indoor heat exchanger 4, thus gas-liquid separator 5 It is compressed in being expelled back into the second cylinder 12 after being separated by a part of gaseous coolant, when thus reducing refrigeration, is flowed into room Gas content in the coolant of interior heat exchanger 4, decreases the gaseous coolant heat-exchange performance to the indoor heat exchanger 4 as vaporizer The impact of energy, such that it is able to improve heat exchange efficiency, reduces compressor compresses power consumption.

Single cold type air-conditioner 100 according to this utility model embodiment, by arranging above-mentioned duplex cylinder compressor 1, can effectively carry High energy efficiency of air conditioner, effectively facilitates energy-saving and emission-reduction, simultaneously by arranging gas-liquid separator 5, can improve heat exchange efficiency, fall Low compression machine compression power consumption, improves air-conditioner ability and efficiency further, again owing to arranging coolant radiator 9, and can be to electricity Control element carries out effective temperature-reducing.

As it is shown in figure 5, in embodiments more of the present utility model, between the air entry of gas outlet m and the second cylinder 12 It is in series with electromagnetic valve 20, thus when the liquid coolant in gas-liquid separator 5 is beyond safety levels, by closing electromagnetic valve 20 Liquid refrigerants can be avoided to enter in the second cylinder 12, such that it is able to avoid duplex cylinder compressor 1 that liquid hammer occurs, extend twin-tub The service life of compressor 1.It is possible to further arranging liquid level sensor on gas-liquid separator 5, passed by liquid level The testing result of sensor controls the open and-shut mode of electromagnetic valve 20.

In embodiments more of the present utility model, the span of the volume of gas-liquid separator 5 is 100mL-500mL.

In embodiments more of the present utility model, as shown in Figure 5 and Figure 6, duplex cylinder compressor 1 also includes being located at housing 10 The second outer reservoir 14, the second reservoir 14 is connected between the air entry of gas outlet m and the second cylinder 12.Thus It is provided by the second reservoir 14, the coolant discharged from the gas outlet m of gas-liquid separator 5 can be carried out further gas Liquid separates, and liquid coolant can be avoided further to return in the second cylinder 12, thus avoids duplex cylinder compressor 1 to occur liquid hammer existing As, improve the service life of duplex cylinder compressor 1.

In further embodiment of the present utility model, the volume of the first reservoir 13 is more than the volume of the second reservoir 14. Thus on the premise of the decrement ensureing the second cylinder 12, less by the volume making the second reservoir 14, can drop Low cost.Preferably, the volume of the second reservoir 14 is not more than 1/2nd of the first reservoir 13 volume.

Utility model people by according to this utility model above-described embodiment single cold type air-conditioner (set specified refrigerating capacity as 3.5kw, The delivery space ratio of the second cylinder and the first cylinder is set as 7.6%) efficiency under different operating modes and existing single cold type Air-conditioner efficiency at the same conditions compares, and obtains following data:

Measurement condition	Prior art efficiency	Technical solutions of the utility model efficiency	Lifting ratio
				Specified refrigeration	3.93	4.26	8.40%
Middle refrigeration	5.88	6.18	5.10%
				APF	4.61	4.92	6.72%

It follows that according to the single cold type air-conditioner of this utility model embodiment relative to existing single cold type compressor, each work Condition efficiency and annual efficiency APF are all obviously improved.

Utility model people is by empty for the single cold type of different specified refrigerating capacitys and this utility model embodiment of different delivery space ratio simultaneously Adjust device to compare with the single cold type air-conditioner under existing identical operating mode, find that efficiency all has lifting, such as utility model people Find that through overtesting the single cold type air-conditioner of this utility model embodiment (sets specified refrigerating capacity as 2.6kw, by the second cylinder It is set as 9.2% with the delivery space ratio of the first cylinder) compared with the single cold type air-conditioner under existing identical operating mode, efficiency Improve 7.3%.

The control method of the single cold type air-conditioner according to this utility model embodiment is described in detail, wherein below with reference to Fig. 1-Fig. 7 Single cold type air-conditioner is the single cold type air-conditioner according to this utility model above-described embodiment.

The control method of the single cold type air-conditioner according to this utility model embodiment, when comprising the steps: refrigerating operaton according to The testing result of the first detection object is adjusted the aperture of first throttle element to setting aperture.It is to say, during refrigeration, adopt Parameter needed for collection processing controls first throttle element, then according to the aperture of state modulator first throttle element obtained until Meet condition.

Wherein first detection object include outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of air vent, The pressure at expulsion of air vent, the intermediate pressure from the coolant of gas outlet's discharge, the middle temperature of the coolant from gas outlet's discharge At least one in degree, gas-liquid separator temperature, pressure of the gas and liquid separator.Need illustrate, intermediate pressure and in Between the coolant that can be connected by detection in the pipeline of gas outlet and the second reservoir of temperature draw.

After the aperture of first throttle element meets condition, can be after running the n second, detection the first detection object again, so Adjust the aperture of first throttle element afterwards according to testing result, so repeat.Certainly repeat condition is not limited to this, the most permissible After receiving the operational order of user, detection the first detection object, then adjusts first throttle unit according to testing result again The aperture of part.In other words, refrigeration time, after the aperture of first throttle element meets condition, can run the n second or After receiving the operation signal of user, the relevant parameter of the aperture of first throttle element is detected judgement, then basis again Result of determination adjusts the aperture of first throttle element, so repeats.

The control method of the single cold type air-conditioner according to this utility model embodiment, can well control first throttle element Aperture arrives presets aperture, reaches optimum energy-saving effect.

The control method according to this utility model embodiment is described below in detail as a example by six specific embodiments.

Embodiment 1:

In this embodiment, the first detection object is outdoor environment temperature T4 and delivery temperature, first according to the outdoor detected Ambient temperature T4 obtains running frequency F, and the outdoor environment temperature T4 and running frequency F according to detecting is calculated and sets Determine delivery temperature, then adjust the aperture of first throttle element so that the delivery temperature detected reaches to set delivery temperature. It is understood that computing formula is located in the electric control element of single cold type air-conditioner in advance, computing formula can be according to actual feelings Condition specifically limits.

Specifically, when the first detection object is outdoor environment temperature T4 and delivery temperature, sensing chamber's external environment during refrigeration start Temperature T4, determines running frequency F of compressor according to T4, determines setting delivery temperature TP according to T4 and F, wherein TP=a1*F+b1+c1*T4, a1, b1, c1 span can be corresponding with outdoor environment temperature T4, such as when 20 DEG C >= During T4: a1 takes-10--10；B1 takes-100--100；C1 takes-10 10；When 20 DEG C of ＜ T4≤30 DEG C: a1 takes-8--8； B1 takes-80--80；C1 takes-8 8；When 30 DEG C of ＜ T4≤40 DEG C: a1 takes-9--9；B1 takes-90--90；C1 takes-6 6； When 40 DEG C of ＜ T4≤50 DEG C: a1 takes-8--8；B1 takes-90--90；C1 takes-5 5；As 50 DEG C of ＜ T4: a1 takes-10--10； B1 takes-100--100；C1 takes-5 5.Of course, it should be understood that the value of a1, b1, c1 is not limited to this, such as also Can be unrelated with outdoor environment temperature T4, but set in advance in system.

It should be noted that when a1, b1 one of them or time simultaneously value is 0, it is believed that above in formula with this parameter Unrelated, such as a1=0, i.e. think unrelated with frequency F.

Then according to the operation aperture of TP regulation first throttle element.First throttle element regulation put in place after stable operation.The n second After again detect outdoor temperature T4 and whether change or whether user has operation, then regulate first throttle according to associated change The aperture of element.

Such as, refrigerating operaton of starting shooting, detect that T4 temperature is 35 DEG C, inquire about corresponding compressor operating frequency under this T4 and should be 90HZ, the delivery temperature coefficient a1 in corresponding temperature interval is 0.6, b1 is 20, c1 is 0.2, calculates setting delivery temperature TP=0.6*90+20+0.2*35=81, according to setting delivery temperature Tp=81 DEG C, regulates first throttle element aperture: initially open The TP detected under degree has reached 90 degree, then open big first throttle element, reaches to set delivery temperature Tp=81 DEG C corresponding First throttle element aperture, say, that make the delivery temperature detected reach to set delivery temperature.First throttle element reaches Stable operation after target aperture.Detect T4 after the n second to be not changed in, continue stable operation.

In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, such as, make a reservation for multiple outdoor environment Temperature range, multiple outdoor environment temperature intervals corresponding multiple compressor operating frequencies respectively, the outdoor environment that inquiry detects The outdoor environment temperature at temperature place is interval, i.e. can get corresponding compressor operating frequency.Of course, it should be understood that pressure The running frequency of contracting machine can also be detected by the detection device that sets on the compressor.

Embodiment 2:

In this embodiment, the first detection object is outdoor environment temperature T4 and pressure at expulsion, first according to the outdoor detected Ambient temperature T4 obtains running frequency F, and the outdoor environment temperature T4 and running frequency F according to detecting is calculated and sets Determine pressure at expulsion, then adjust the aperture of first throttle element so that the pressure at expulsion detected reaches to set pressure at expulsion.

Specifically, when the first detection object is outdoor environment temperature T4 and pressure at expulsion, sensing chamber's external environment during refrigeration start Temperature T4, determines running frequency F of compressor according to T4, determines setting pressure at expulsion Pp according to T4 and F；Wherein Pp=a3*F+b3+c3*T4；The span of a3, b3, c3 can be corresponding with outdoor environment temperature T4, such as when 20 DEG C >= During T4: a3 takes-5--5；B3 takes-8--8；C3 takes-1 1；When 20 DEG C of ＜ T4≤30 DEG C: a3 takes-5 5；B3 takes -10--10；C3 takes-2 2；When 30 DEG C of ＜ T4≤40 DEG C: a3 takes-5--5；B3 takes-12--12；C3 takes-3 3； When 40 DEG C of ＜ T4≤50 DEG C: a3 takes-6--6；B3 takes-15--15；C3 takes-4 4；As 50 DEG C of ＜ T4: a3 takes-7--7； B3 takes-20--20；C3 takes-5 5.Of course, it should be understood that the value of a3, b3, c3 is not limited to this, the most also may be used With unrelated with outdoor environment temperature T4, but set in advance in system.It should be noted that when a3, b3 one of them Or when value is 0 simultaneously, it is believed that unrelated with this parameter in formula above, such as a3=0, i.e. think and frequency F Unrelated.

Then according to the operation aperture of Pp regulation first throttle element.First throttle element regulation put in place after stable operation.The n second After again detect outdoor temperature T4 and whether change or whether user has operation, then regulate first throttle according to associated change Element aperture.

Such as start shooting refrigerating operaton, detect that T4 temperature is 35 DEG C, inquire about corresponding compressor operating frequency under this T4 and should be 80HZ, The pressure at expulsion coefficient a3 in corresponding temperature interval is 0.02, b3 is 0.7, c3 is 0.02, calculates pressure at expulsion Pp=0.02*80+0.7+0.02*35=3.0, according to setting pressure at expulsion Pp=3.0MPa regulation first throttle element aperture: just Detect under beginning aperture that pressure at expulsion Pp has reached 2.5MPa, then turn down first throttle element, reach to set pressure at expulsion First throttle element aperture corresponding for Pp=3.0MPa, say, that make the pressure at expulsion detected reach to set pressure at expulsion. First throttle element reaches stable operation after target aperture, detects T4 and is not changed in, continue stable operation after the n second.

In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, such as, make a reservation for multiple outdoor environment Temperature range, multiple outdoor environment temperature intervals corresponding multiple compressor operating frequencies respectively, the outdoor environment that inquiry detects The outdoor environment temperature at temperature place is interval, i.e. can get corresponding compressor operating frequency.Of course, it should be understood that pressure The running frequency of contracting machine can also be detected by the detection device that sets on the compressor.

Embodiment 3:

In this embodiment, the first detection object is outdoor environment temperature T4, first according to the outdoor environment temperature T4 detected Obtain running frequency F, and the outdoor environment temperature T4 and running frequency F according to detecting is calculated first throttle element Set aperture, then adjust the aperture of first throttle element to setting aperture.

Specifically, when the first detection object is outdoor environment temperature T4, detection outdoor environment temperature T4 when refrigeration starts；Root Determine compressor operating frequency F according to T4, determine setting aperture Lr of first throttle element according to T4 and F；Wherein set and open Degree Lr=a5*F+b5+c5*T4；Wherein the span of a5, b5, c5 can be corresponding with outdoor environment temperature T4, the most in advance If the span of different outdoor environment temperature intervals corresponding different a5, b5, c5, then can limit according to practical situation Determine the value of a5, b5, c5.

Compare setting aperture Lr and the difference of first throttle element initial opening of first throttle element, as unanimously, need not regulate, As inconsistent, then it is adjusted to set aperture Lr.First throttle element regulation put in place after stable operation.Again sensing chamber after the n second Whether outer temperature T4 changes or whether user has operation, then regulates first throttle element aperture according to associated change.

In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, such as, make a reservation for multiple outdoor environment Temperature range, multiple outdoor environment temperature intervals corresponding multiple compressor operating frequencies respectively, the outdoor environment that inquiry detects The outdoor environment temperature at temperature place is interval, i.e. can get corresponding compressor operating frequency.Of course, it should be understood that pressure The running frequency of contracting machine can also be detected by the detection device that sets on the compressor.

Embodiment 4:

In this embodiment, preset multiple outdoor temperatures interval, the corresponding different gas-liquid separator in each outdoor temperature interval Temperature, the first detection object is the temperature of outdoor environment temperature T4 and gas-liquid separator, first according to the actually detected outdoor arrived Ambient temperature T4 obtains the design temperature of gas-liquid separator corresponding to the outdoor temperature interval at place, then adjusts first throttle unit The aperture of part until actually detected to the temperature of gas-liquid separator meet design temperature.

Specifically, when the temperature that the first detection object is outdoor environment temperature T4 and gas-liquid separator, when refrigeration start runs Detection outdoor environment temperature T4 and temperature Ts of gas-liquid separator, corresponding according to the outdoor environment temperature T4 inquiry detected The interval design temperature with gas-liquid separator of the design temperature of the gas-liquid separator that outdoor temperature interval is corresponding, such as outdoor temperature Corresponding relation can be such that as 20 DEG C >=T4: Ts takes 0 30；When 0 DEG C of ＜ T4≤30 DEG C: Ts takes 0 40；When During 30 DEG C of ＜ T4≤40 DEG C: Ts takes 0 50；When 40 DEG C of ＜ T4≤50 DEG C: Ts takes 0 60；As 50 DEG C of ＜ T4: Ts takes 0 65.Of course, it should be understood that above-mentioned numerical value is exemplary illustration, and it is not to tool of the present utility model Body limits.

Then the aperture of first throttle element is adjusted so that temperature Ts of the gas-liquid separator detected meets design temperature.

Such as start shooting refrigerating operaton, detect that T4 temperature is 35 DEG C, inquire about corresponding gas-liquid separator temperature Ts under this T4 interval Should be 26 DEG C, detect under initial opening that temperature Ts of gas-liquid separator has reached 20 DEG C, then open big first throttle element, reach To the first throttle element aperture that design temperature Ts=26 DEG C is corresponding, say, that make the temperature of the gas-liquid separator detected Ts reaches design temperature.First throttle element reaches stable operation after target aperture.Detect T4 after the n second to be not changed in, continue Stable operation.

Embodiment 5:

In this embodiment, the first detection object is outdoor environment temperature T4 and intermediate pressure；First according to the outdoor detected Ambient temperature T4 obtains running frequency F, and the outdoor environment temperature T4 and running frequency F according to detecting is calculated and sets Determine intermediate pressure, then adjust the aperture of first throttle element so that the intermediate pressure detected reaches to set intermediate pressure.

Specifically, the relational expression set between intermediate pressure Ps and outdoor environment temperature T4 and running frequency F can be Ps=a7*F+b7+c7*T4, wherein the span of a7, b7, c7 can be corresponding with outdoor environment temperature T4, the most default The interval of different outdoor environment temperature intervals corresponding different a7, b7, c7, then can limit according to practical situation The value of a7, b7, c7.

In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, such as, make a reservation for multiple outdoor environment Temperature range, multiple outdoor environment temperature intervals corresponding multiple compressor operating frequencies respectively, the outdoor environment that inquiry detects The outdoor environment temperature at temperature place is interval, i.e. can get corresponding compressor operating frequency.Of course, it should be understood that pressure The running frequency of contracting machine can also be detected by the detection device that sets on the compressor.

Embodiment 6:

In this embodiment, preset multiple outdoor temperatures interval, the corresponding different gas-liquid separator in each outdoor temperature interval Pressure, the first detection object is the pressure of outdoor environment temperature T4 and gas-liquid separator, first according to the actually detected outdoor arrived Ambient temperature T4 obtains the setting pressure of gas-liquid separator corresponding to the outdoor temperature interval at place, then adjusts first throttle unit The aperture of part sets pressure until the pressure of the actually detected gas-liquid separator arrived meets.

Specifically, when the pressure that the first detection object is outdoor environment temperature T4 and gas-liquid separator, when refrigeration start runs Detection outdoor environment temperature T4 and the pressure Ps of gas-liquid separator, corresponding according to the outdoor environment temperature T4 inquiry detected The interval setting pressure with gas-liquid separator of the setting pressure of the gas-liquid separator that outdoor temperature interval is corresponding, such as outdoor temperature Corresponding relation can be such that as 20 DEG C >=T4: Ps takes 0.1 8；When 20 DEG C of ＜ T4≤30 DEG C: Ps takes 0.1 10； When 30 DEG C of ＜ T4≤40 DEG C: Ps takes 0.1 15；When 40 DEG C of ＜ T4≤50 DEG C: Ps takes 0.1 20；As 50 DEG C of ＜ During T4: Ps takes 0.1 25.Of course, it should be understood that above-mentioned numerical value is exemplary illustration, and it is not to this practicality Novel concrete restriction.

Then the aperture of first throttle element is adjusted so that the pressure Ps of the gas-liquid separator detected meets setting pressure.

Such as start shooting refrigerating operaton, detect that T4 temperature is 50 DEG C, inquire about the setting of corresponding gas-liquid separator under this T4 interval Pressure Ps should be 2.0MPa, and the pressure Ps of the gas-liquid separator detected under initial opening has reached 2.2MPa, then turn down One restricting element, reaches to set first throttle element aperture corresponding to pressure Ps=2.2MPa, say, that make to detect The pressure Ps of gas-liquid separator meets setting pressure.First throttle element reaches stable operation after target aperture.Detect after the n second T4 is not changed in, and continues stable operation.

It is understood that illustrating of being merely given as of above-mentioned six specific embodiments, the control of this utility model embodiment Method is not limited to above-mentioned six kinds, by calculated setting pressure at expulsion, setting delivery temperature, setting in above-described embodiment The setup parameters such as aperture, setting intermediate pressure can also be adopted and draw in other ways, such as, can arrange different outdoor temperatures Interval, the corresponding no setup parameter in multiple outdoor temperature intervals, according to the room at the actually detected outdoor environment temperature place arrived Outer temperature range i.e. can get corresponding setup parameter.Will also be appreciated that to consult above by outdoor environment temperature and obtain Parameter can also by preset computing formula draw.

In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score Can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, Fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature Or oblique upper, or it is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or it is special to be merely representative of first Levy level height less than second feature.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " tool Body example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material Material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned term Schematic representation is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or Person's feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the most conflicting feelings Under condition, those skilled in the art can be by the different embodiments described in this specification or example and different embodiment or show The feature of example is combined and combines.

Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is example Property, it is impossible to being interpreted as restriction of the present utility model, those of ordinary skill in the art can in the range of this utility model Above-described embodiment be changed, revise, to replace and modification.

Claims (6)

1. a single cold type air-conditioner, it is characterised in that including:

Duplex cylinder compressor, described duplex cylinder compressor includes housing, the first cylinder, the second cylinder and the first reservoir, described shell Body is provided with air vent, described first cylinder and described second cylinder and is respectively provided in described housing, and described first reservoir sets Outside described housing, the air entry of described first cylinder connects with described first reservoir, described second cylinder and described first The span of the delivery space ratio of cylinder is 1%～10%；

Outdoor heat exchanger and indoor heat exchanger, the first end of described outdoor heat exchanger is connected with described air vent, and described indoor are changed First end of hot device is connected with described first reservoir；

Gas-liquid separator, described gas-liquid separator includes gas outlet, first interface and the second interface, described gas outlet with The air entry of described second cylinder is connected, and described first interface is connected with the second end of described outdoor heat exchanger, and described second connects Mouth is connected with the second end of described indoor heat exchanger, is in series with aperture adjustable between described first interface and described outdoor heat exchanger First throttle element, be in series with the second section fluid element of fixing aperture between described second interface and described indoor heat exchanger；

For the coolant radiator that electric control element is dispelled the heat, described coolant radiator tandem at described first throttle element and Between described first interface；Or described coolant radiator tandem is between described second section fluid element and described second interface.

Single cold type air-conditioner the most according to claim 1, it is characterised in that described first throttle element is electronic expansion Valve, described second section fluid element is capillary tube or choke valve.

Single cold type air-conditioner the most according to claim 1, it is characterised in that described gas outlet and described second cylinder Air entry between be in series with electromagnetic valve.

Single cold type air-conditioner the most according to claim 1, it is characterised in that the value of the volume of described gas-liquid separator Scope is 100mL-500mL.

5. according to the single cold type air-conditioner according to any one of claim 1-4, it is characterised in that described duplex cylinder compressor is also Including the second reservoir being located at outside described housing, described second reservoir is connected on described gas outlet and described second cylinder Air entry between.

Single cold type air-conditioner the most according to claim 5, it is characterised in that the volume of described first reservoir is more than institute State the volume of the second reservoir.