CN105318606B - A kind of air conditioner room unit, outdoor unit and air conditioner - Google Patents
A kind of air conditioner room unit, outdoor unit and air conditioner Download PDFInfo
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- CN105318606B CN105318606B CN201410364536.1A CN201410364536A CN105318606B CN 105318606 B CN105318606 B CN 105318606B CN 201410364536 A CN201410364536 A CN 201410364536A CN 105318606 B CN105318606 B CN 105318606B
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Abstract
The present invention provides a kind of air conditioner room unit, outdoor unit and air conditioner, is related to air conditioner technical field, is invented to improve the uniformity of refrigerant distribution of micro-channel heat exchanger.The air conditioner room unit, including indoor micro-channel heat exchanger, the interior micro-channel heat exchanger includes the first header and the second header, further include the first gas-liquid separation device, first gas-liquid separation device includes hollow first shell, the inside of the first shell is used for gas-liquid separation, the first shell is equipped with the inlet tube with being connected inside the first shell respectively, outlet tube and air outlet pipe, the inlet tube of first gas-liquid separation device is connected with the supercooling apparatus of outdoor unit of the air conditioner, the outlet tube of first gas-liquid separation device is connected with first header, the air outlet pipe of first gas-liquid separation device is connected with second header.Air conditioner room unit provided by the invention is used for air conditioner.
Description
Technical field
The present invention relates to a kind of air conditioner technical field more particularly to air conditioner room unit, outdoor unit and air conditioners.
Background technology
Under normal conditions, air conditioner includes indoor unit and outdoor unit, and indoor unit includes indoor heat exchanger, and outdoor unit includes room
The components such as external heat exchanger, compressor, capillary, four-way valve, filter, indoor heat exchanger, outdoor heat exchanger, compressor, capillary
The components such as pipe, four-way valve, filter form the circulatory system of a sealing, and refrigeration is realized using the cycle of refrigerant within the system
Or heat-production functions.Wherein, heat exchanger as heat exchange important component to air conditioner realize refrigeration or heating be it is essential,
Compared with usual heat exchanger, micro-channel heat exchanger it is small, heat exchange efficiency is high and generally full aluminium material, and cost is relatively low, because
This, indoors in machine and outdoor unit, the use of micro-channel heat exchanger is more and more extensive.
Existing micro-channel heat exchanger generally comprises two multiple flow paths between header and header positioned at both ends,
It after refrigerant enters header, is distributed by header to each flow path, but under normal circumstances, what it is into header is liquid refrigerants
With the mixing refrigerant (i.e. two-phase refrigerant) of gaseous coolant, due to parameters such as the density of liquid refrigerants and gaseous coolant, friction coefficient
It differs greatly, the refrigerant in micro-channel heat exchanger is caused to be difficult to evenly distribute into each different flow path, be easy to cause refrigerant
Bias current, leads to the uniformity of the heat exchange of air conditioner to reduce, and so as to influence the performance of air conditioner, and the prior art is difficult to solve this to ask
Topic.
Invention content
The embodiment of the present invention provides a kind of air conditioner room unit, outdoor unit and air conditioner, can improve micro-channel heat exchanger
Refrigerant distribution uniformity.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of air conditioner room unit, including indoor micro-channel heat exchanger, the interior micro-channel heat exchanger includes the first collection
Flow tube and the second header, first header are used to shunt refrigerant in refrigeration, and second header is used for
Refrigerant is shunted in heating, further includes the first gas-liquid separation device, first gas-liquid separation device includes hollow
First shell, the inside of the first shell for gas-liquid separation, the first shell be equipped with respectively with the first shell
Inlet tube, outlet tube and the air outlet pipe of inside connection, the inlet tube and outdoor unit of the air conditioner of first gas-liquid separation device
Supercooling apparatus connection, the outlet tube of first gas-liquid separation device connects with first header, first gas-liquid
The air outlet pipe of separator is connected with second header.
Further, first flow is equipped between the air outlet pipe of first gas-liquid separation device and second header
Control device, when the first flow control device is opened, the first flow control device can be to first gas-liquid point
The refrigerant between air outlet pipe and second header from device is depressured and current limliting, when the first flow control device closes
When closing, the pipeline between the air outlet pipe of first gas-liquid separation device and second header is closed.
Further, the top of first gas-liquid separation device is equipped with first pressure sensor, the first pressure
Sensor can detect the pressure of refrigerant in first gas-liquid separation device, and feed back described first to the master control substrate of air conditioner
Pressure information in gas-liquid separation device, the side wall of first gas-liquid separation device are equipped with the first temperature sensor, and described the
One temperature sensor can detect the saturation temperature of refrigerant in first gas-liquid separation device, and feed back institute to the master control substrate
State the temperature information in the first gas-liquid separation device, the master control substrate can according to the pressure of first gas-liquid separation device and
Temperature information is judged with the presence or absence of gaseous coolant in first gas-liquid separation device, in refrigeration, if first gas-liquid point
From, there are gaseous coolant, the master control substrate opens the first flow control device in device.
Further, the high-pressure pressure sensor on the gas exhaust piping of the compressor of the master control substrate and air conditioner connects
It connects, the high-pressure pressure sensor can detect the pressure at expulsion of the compressor and believe to master control substrate feedback pressure at expulsion
Breath, in heating, if the pressure at expulsion is more than predetermined value, the master control substrate can beat the first flow control device
It opens, if the pressure at expulsion is not more than predetermined value, the master control substrate can close the first flow control device
Further, the first flow control device includes the first capillary and first switch solenoid valve, and described the
One capillary and the first switch solenoid valve are series at the air outlet pipe of first gas-liquid separation device and second afflux
Between pipe, the first switch solenoid valve and the master control substrate connection；
Or the first flow control device includes electric expansion valve, the electric expansion valve connects with the master control substrate
It connects.
Air conditioner room unit provided by the invention, in the supercooling of the indoor micro-channel heat exchanger and outdoor unit of the air conditioner
First gas-liquid separation device is set on the pipeline between device, and in refrigeration work, refrigerant enters after the supercooling apparatus
The inlet tube of first gas-liquid separation device, after carrying out gas-liquid separation in first gas-liquid separation device, liquid refrigerants
First header is entered by the outlet tube of first gas-liquid separation device, due to entering in first header
Refrigerant is liquid, i.e., single-phase refrigerant so that it is cold to reduce gaseous state for being more uniformly stressed for refrigerant in first header
Influence of the matchmaker to assigning process can be distributed uniformly to each flow path of the indoor micro-channel heat exchanger, prevent refrigerant
Biased flow phenomenon, so as to make the refrigerant in the indoor micro-channel heat exchanger more uniform；Simultaneously as first gas-liquid separation
The air outlet pipe of device is connected with second header so that the gaseous coolant that first gas-liquid separation device is isolated can lead to
It crosses after other refrigerants evaporated in the air outlet pipe and the indoor micro-channel heat exchanger of first gas-liquid separation device mix and returns
To outdoor unit of the air conditioner, at this point, the pressure for returning to the gaseous coolant of outdoor unit of the air conditioner is increased so that air conditioner
The pressure of inspiration(Pi) of compressor is improved, and can solve the phenomenon that suction pressure of compressor is too low under extreme operating condition, improves refrigeration
Range of operation and reliability.It is high-pressure gaseous refrigerant into the second header refrigerant in addition, when heating work,
The situation of high-pressure excessively high (running overload) is likely to occur under extreme operating condition, at this point, since first gas-liquid separation fills
The air outlet pipe put is connected with second header, and a part of high-pressure gaseous refrigerant can enter first gas-liquid separation device,
Pressure release is realized, to improve the range of operation of system heating operation and reliability.The refrigerant point of micro-channel heat exchanger can be improved as a result,
The uniformity matched.
A kind of air-conditioner outdoor unit, including outdoor micro-channel heat exchanger, supercooling apparatus and gas-liquid separator, the outdoor is micro-
Channel heat exchanger includes third header, and the third header is used to shunt refrigerant in heating, further includes second
Gas-liquid separation device, second gas-liquid separation device include hollow second shell, and the inside of the second shell is used for gas
Liquid detaches, and the second shell is equipped with inlet tube, outlet tube and the air outlet pipe connected respectively with second shell inside, institute
The outlet tube for stating the second gas-liquid separation device is connected with the third header, the air outlet pipe of second gas-liquid separation device with
The air inlet pipe connection of the gas-liquid separator.
Further, the supercooling apparatus includes mutually independent first pipeline and the second pipeline, second gas-liquid point
Outlet tube from device is connected with one end of first pipeline, and the other end of first pipeline is used to connect with indoor unit,
The air outlet pipe of second gas-liquid separation device is connected with one end of second pipeline, the other end and the sky of second pipeline
The air inlet pipe connection of the gas-liquid separator of device is adjusted, is set between the air outlet pipe of second gas-liquid separation device and first pipeline
There is second flow control device, when the second flow control device is opened, the second flow control device can be to described
Refrigerant between the air outlet pipe of second gas-liquid separation device and first pipeline is depressured and current limliting, when the first flow control
When device processed is closed, the pipeline between the air outlet pipe of first gas-liquid separation device and first pipeline is closed.
Further, the top of second gas-liquid separation device is equipped with second pressure sensor, the second pressure
Sensor can detect the pressure of refrigerant in second gas-liquid separation device, and feed back described second to the master control substrate of air conditioner
Pressure information in gas-liquid separation device, the side wall of second gas-liquid separation device are equipped with second temperature sensor, and described the
Two temperature sensors can detect the saturation temperature of refrigerant in second gas-liquid separation device and feed back institute to the master control substrate
The temperature information of the second gas-liquid separation device is stated, the master control substrate can be according to the pressure and temperature of second gas-liquid separation device
Information is spent to judge with the presence or absence of gaseous coolant in second gas-liquid separation device, in heating, if second gas-liquid separation
There are gaseous coolant in device, the master control substrate opens the second flow control device.
Further, the second flow control device includes the second capillary and second switch solenoid valve, and described the
Two capillaries and the second switch solenoid valve are series at the air outlet pipe of second gas-liquid separation device and the supercooling apparatus
Between, the master control substrate connection of the switch electromagnetic valve and air conditioner；
Or the second flow control device includes electric expansion valve, the electric expansion valve connects with the master control substrate
It connects.
Further, the supercooling apparatus is double pipe or plate heat exchanger.
Air-conditioner outdoor unit provided in an embodiment of the present invention, the outdoor micro-channel heat exchanger and the supercooling apparatus it
Between pipeline on the second gas-liquid separation device is set, when heating work, the refrigerant from air conditioner room unit, by the mistake
After device for cooling, into the inlet tube of second gas-liquid separation device, gas-liquid point is carried out in second gas-liquid separation device
From rear, liquid refrigerants enters the third header by the second gas-liquid separation device outlet tube, due to entering described the
Refrigerant in three headers is liquid, i.e., single-phase refrigerant reduces influence of the gaseous coolant to assigning process so that described the
Being more uniformly stressed for refrigerant in three headers, prevents refrigerant Biased flow phenomenon, makes in the outdoor micro-channel heat exchanger
Refrigerant it is more uniform.Simultaneously as the air outlet pipe of second gas-liquid separation device and the air inlet pipe of the gas-liquid separator
It connects, the gaseous coolant in second gas-liquid separation device can enter the gas-liquid by the air inlet pipe of the gas-liquid separator
Separator so as to avoid the gaseous coolant in the second gas-liquid separation device that from can not discharging, and enters the gas of the gas-liquid separator
State refrigerant can continue on for freezing or heating after gas-liquid separation, so as to improve the utilization rate of refrigerant.It can improve as a result, micro-
The uniformity of the refrigerant distribution of channel heat exchanger.
A kind of air conditioner, including the air conditioner room unit described in any of the above-described technical solution and/or any of the above-described technical solution
The air-conditioner outdoor unit.
Description of the drawings
Fig. 1 is a kind of schematic diagram of air conditioner room unit of the embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the first gas-liquid separation device of air conditioner room unit of the embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of air-conditioner outdoor unit of the embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of the second gas-liquid separation device of air-conditioner outdoor unit of the embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of air conditioner of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that term " " center ", " on ", " under ", "front", "rear", " left side ",
The orientation or position relationship of the instructions such as " right side ", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are based on shown in the drawings
Orientation or position relationship, be for only for ease of the description present invention and simplify description rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Term " first ", " second " be only used for description purpose, and it is not intended that instruction or imply relative importance or
The implicit quantity for indicating indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more this feature.In the description of the present invention, unless otherwise indicated, " multiple " be meant that two or
It is more than two.
Filled arrows in attached drawing represent the flow direction of refrigerant during refrigeration cycle；Hollow arrow represents cold during heating cycle
The flow direction of matchmaker.
Referring to Figures 1 and 2, a specific embodiments of the Fig. 1 for air conditioner room unit provided by the invention, the air conditioner
Indoor unit, including indoor micro-channel heat exchanger 1, with outdoor micro-channel heat exchanger 1 ', four-way valve 8, compressor 2, gas-liquid separation
Device 9 and supercooling apparatus 3 are linked to be circuit by pipeline, and four-way valve 8 can be heated and freezed by changing the flow direction of refrigerant
Switching, compressor 2 is used for refrigerant compressible drive, and 9 refrigerant of gas-liquid separator enters before compressor 2 carries out gas-liquid point to refrigerant
From, gaseous coolant is sent to compressor 2, can prevent 2 inspiration liquid refrigerants of compressor from generating liquid hammer and damaging compressor 2, supercooling
Device 3 is used to be subcooled to flowing through its internal refrigerant.
Indoor micro-channel heat exchanger 1 includes the first header 11 and the second header 12, the first header 11 and the second collection
The pipeline of the first header 11 of several connections and the second header 12 is equipped between flow tube 12, the first header 11 is used in refrigeration
Refrigerant is shunted, the second header 12 is used to shunt refrigerant in heating, indoor micro-channel heat exchanger 1 and supercooling
Pipeline between device 3 is equipped with the first gas-liquid separation device 4, and the first gas-liquid separation device 4 includes hollow first shell 40,
The inside of first shell 40 be used for refrigerant therein carry out gas-liquid separation, first shell 40 be equipped with inside first shell 40
The inlet tube 41 of connection, outlet tube 42, air outlet pipe 43, and the outlet tube 42 of the first gas-liquid separation device 4 is located at 40 bottom of housing,
The inlet tube 41 of first gas-liquid separation device 4 is directed into bottom, the air outlet pipe 43 of the first gas-liquid separation device 4 from 40 top of housing
Positioned at the top of housing 40；The inlet tube 41 of first gas-liquid separation device 4 is connected with supercooling apparatus 3, the first gas-liquid separation device 4
Outlet tube 42 connected with the inlet tube 111 of the first header 11, so as to make the outlet tube 42 of the first gas-liquid separation device 4 and
One header 11 connects, and the air outlet pipe 43 of the first gas-liquid separation device 4 is connected with the air outlet pipe 121 of the second header 12, makes
The air outlet pipe 43 of one gas-liquid separation device 4 is connected with the second header 12, and the air outlet pipe 43 of the first gas-liquid separation device 4 is also with four
Port valve 8 connects.
In refrigeration work, refrigerant is flowed out from outdoor micro-channel heat exchanger 1 ', after supercooling apparatus 3, into the first gas
The inlet tube 41 of liquid separating apparatus 4, after carrying out gas-liquid separation under the effect of gravity in the first gas-liquid separation device 4, liquid is cold
Matchmaker enters the first header 11 by the outlet tube 42 of the first gas-liquid separation device 4, cold in the first header 11 due to entering
Matchmaker is liquid, i.e., single-phase refrigerant reduces influence of the gaseous coolant to assigning process so that refrigerant in the first header 11
It is more uniformly stressed, when distributing refrigerant, refrigerant Biased flow phenomenon can be prevented, so as to make in indoor micro-channel heat exchanger 1
Refrigerant is more uniform.Simultaneously as the air outlet pipe 43 of the first gas-liquid separation device 4 is connected with the second header 12 so that first
The gaseous coolant that gas-liquid separation device 4 is isolated can be changed by the air outlet pipe 43 of the first gas-liquid separation device 4 with indoor microchannel
Outdoor unit of the air conditioner is returned to after other refrigerants mixing evaporated in hot device 1, at this point, the gaseous state for returning to outdoor unit of the air conditioner is cold
The pressure of matchmaker is increased so that the pressure of inspiration(Pi) of compressor 2 is improved, and can solve the compressor pressure of inspiration(Pi) under extreme operating condition
The phenomenon that power is too low improves refrigerating operaton range and reliability.In addition, when heating work, it is cold into the second header 12
Matchmaker is high-pressure gaseous refrigerant, and the situation of high-pressure excessively high (running overload) is likely to occur under extreme operating condition, at this point, due to
The air outlet pipe of first gas-liquid separation device 4 is connected with the second header 12, and a part of high-pressure gaseous refrigerant can enter the first gas-liquid
Separator 4 realizes pressure release, to improve the range of operation of system heating operation and reliability.Thermal Performance of Micro Channels can be improved as a result,
The uniformity of the refrigerant distribution of device improves the Performance And Reliability of air conditioner.
In order to make that the refrigerant of indoor micro-channel heat exchanger 1 distributes more uniformly, the of volume equal to predetermined value can be used
One header 11, and when the volume of the first header 11 is the predetermined value, the stream of the liquid refrigerants in the first header 11
Speed can be considered 0, and the distribution of liquid refrigerants is made to be carried out by static pressure, so as to reduce the influence that flow velocity and pressure difference distribute refrigerant,
Be conducive to further improve the uniformity of refrigerant distribution.
Since the pressure difference of the refrigerant for the indoor micro-channel heat exchanger 1 that comes in and goes out is larger, the air outlet pipe 43 of the first gas-liquid separation device 4
In the case of being connected with the second header 12, pipe that gaseous coolant can be between the first gas-liquid separation device 4 and the second header 12
It is flowed in road, for the ease of controlling the flow of gaseous coolant, avoids excessive pressure difference that the first gas-liquid separation device 4 is caused to damage,
First flow control device 5 can be set between 43 and second header 12 of air outlet pipe of the first gas-liquid separation device 4, when first
When volume control device 5 is opened, first flow control device 5 can collect the air outlet pipe 43 and second of the first gas-liquid separation device 4
Refrigerant between flow tube 12 is depressured and current limliting, and when first flow control device 5 is closed, the first gas-liquid separation device 4 goes out
Pipeline between 43 and second header 12 of tracheae is closed.In refrigeration work, make gas by opening first flow control device 5
The pipeline that the inflow of state refrigerant is connected with the second header 12, and other refrigerants with being evaporated in indoor micro-channel heat exchanger 1 mix,
So as to improve the pressure of inspiration(Pi) of compressor 2；It, can if there is the situation of hypertonia (running overload) when heating work
Gaseous coolant is made to flow into the first gas-liquid separation device 4 by opening first flow control device 5, pressure release is carried out, if not pressing
The excessively high situation of power then can prevent gaseous coolant from flowing into the first gas-liquid separation device 4 by closing first flow control device 5,
It avoids causing stress too low.
It, can be at the top of the housing 40 of the first gas-liquid separation device 4 for automatically controlling to first flow control device 5
Set first pressure sensor 44, first pressure sensor 44 can detect the first gas-liquid separation device 4 in refrigerant pressure and to
The master control substrate (not shown) of air conditioner feeds back the pressure information in the first gas-liquid separation device 4；In the first gas-liquid separation
First temperature sensor 45 is set on the side wall of the housing 40 of device 4, and the first temperature sensor 45 can detect the first gas-liquid separation
In device 4 saturation temperature of refrigerant and to the master control substrate feed back the first gas-liquid separation device 4 temperature information；Due to first
The mass dryness fraction of refrigerant in gas-liquid separation device 4, which can reflect in the first gas-liquid separation device 4, whether there is gaseous coolant, and the first gas
The mass dryness fraction of refrigerant in liquid separating apparatus 4 is influenced by pressure and temperature, and therefore, the master control substrate can be according to the first gas-liquid point
It whether there is gaseous coolant in the first gas-liquid separation device of pressure and temperature information judgement 4 from device 4, in refrigeration, if the
There are gaseous coolants in one gas-liquid separation device 4, and the master control substrate opens first flow control device 5, if the first gas-liquid
There is no gaseous coolants, the master control substrate in separator 4 closes first flow control device 5, prevent liquid refrigerants from
It flows out the gas outlet 43 of first gas-liquid separation device 4.
The master control substrate is also connect with the high-pressure pressure sensor 6 on the gas exhaust piping of compressor 2, is being heated
When, since the gaseous coolant that compressor 2 is sent out gets in micro-channel heat exchanger 1 through the second header 12, at this point, high-pressure
Sensor 6 can obtain pressure (pressure at expulsion of the compressor 2) information of the gaseous coolant of the submitting of compressor 2 and feed back to the master
Control substrate, if the pressure is excessive, the master control substrate can open first flow control device 5, make part gaseous coolant into
Enter the first gas-liquid separation device 4, so as to carry out pressure release, prevent the load that hypertonia makes indoor micro-channel heat exchanger 1 excessive, protect
The normal work of the indoor micro-channel heat exchanger 1 of barrier.
First flow control device 5 includes the first capillary 51 and first switch solenoid valve 52, the first capillary 51 and the
One switch electromagnetic valve 52 is series between 43 and second header 12 of air outlet pipe of the first gas-liquid separation device 4, first switch electricity
Magnet valve 52 and the master control substrate connection, so as to control the second header 12 and the first gas-liquid by first switch solenoid valve 52
The on and off of pipeline between separator 4 is depressured the gaseous coolant for flowing through it by the first capillary 51, is limited
Stream, and cost can be reduced using the capillary 51 and first switch solenoid valve 52 of the first series connection；
Or volume control device 5 can also use electric expansion valve (not shown), the electric expansion valve and institute
State master control substrate connection.The effect of the electric expansion valve and the first capillary 51 and the work of first switch solenoid valve 52 connected
With identical, and the structure of pipeline can be simplified using electric expansion valve.
With reference to the specific embodiment of Fig. 3 and Fig. 4, Fig. 3 for air-conditioner outdoor unit provided by the invention, the air conditioner
Outdoor unit, can be with indoor micro-channel heat exchanger 1, four-way valve 8, compressor 2, gas-liquid point including outdoor micro-channel heat exchanger 1 '
Circuit is linked to be by pipeline from device 9 and supercooling apparatus 3.
Outdoor micro-channel heat exchanger 1 ' includes 11 ' and the 4th header 12 ' of third header, third header 11 ' and the
Four headers 12 ' are equipped with the pipeline of several connection third headers 11 ' and the 4th header 12 ', and third header 11 ' is used for
Refrigerant is shunted in heating, the 4th header 12 ' is used to shunt refrigerant in refrigeration, the second gas-liquid separation dress
It puts 4 ' and includes hollow second shell 40 ', the inside of second shell 40 ' is used to carry out refrigerant therein gas-liquid separation, and second
Housing 40 ' is equipped with the inlet tube 41 ' connected internal with second shell 40 ', outlet tube 42 ', air outlet pipe 43 ', and the second gas-liquid
The outlet tube 42 ' of separator 4 ' is located at 40 ' bottom of housing, and the inlet tube 41 ' of the second gas-liquid separation device 4 ' is pushed up from housing 40 '
Portion is directed into bottom, and the air outlet pipe 43 ' of the second gas-liquid separation device 4 ' is located at the top of housing 40 '；Outdoor micro-channel heat exchanger
1 ' includes 11 ' and the 4th header 12 ' of third header, and inlet tube 41 ' and the supercooling apparatus 3 of the second gas-liquid separation device 4 ' connect
Logical, the outlet tube 42 ' of the second gas-liquid separation device 4 ' is connected with the inlet tube 111 ' of third header 11 ', the second gas-liquid separation
The air outlet pipe 43 ' of device 4 ' is connected with the air inlet pipe 91 of gas-liquid separator 9, the air outlet pipe 121 ' and four-way of the 4th header 12 '
Valve 8 connects.
When heating work, refrigerant is flowed out from outdoor micro-channel heat exchanger 1 ', after supercooling apparatus 3, into the second gas
The inlet tube 41 ' of liquid separating apparatus 4 ', after the 4 ' middle progress gas-liquid separation using refrigerant its own gravity of the second gas-liquid separation device,
Liquid refrigerants enters third header 11 ' by the outlet tube 42 ' of the second gas-liquid separation device 4 ', due to entering third header
11 ' interior refrigerants are liquid, i.e., single-phase refrigerant reduces influence of the gaseous coolant to assigning process so that in third header
11 ' it is interior when, refrigerant is more uniformly stressed, and prevents refrigerant Biased flow phenomenon, is made cold in the outdoor micro-channel heat exchanger
Matchmaker is more uniform.Since the air outlet pipe 43 ' of the second gas-liquid separation device 4 ' is connected with the air inlet pipe 91 of gas-liquid separator 9, second
The interior gaseous coolant of gas-liquid separation device 4 ' can enter gas-liquid separator 9 by the air inlet pipe 91 of gas-liquid separator 9, so as to avoid
The interior gaseous coolant of second gas-liquid separation device 4 ' can not discharge, and enter the gaseous coolant of gas-liquid separator 9 through gas-liquid separation
Afterwards, can continue on for freezing or heating, so as to improve the utilization rate of refrigerant.The refrigerant of micro-channel heat exchanger can be improved as a result,
The uniformity of distribution improves the performance of air conditioner.
In order to make that the refrigerant of outdoor micro-channel heat exchanger 1 ' distributes more uniformly, the of volume equal to predetermined value can be used
Three headers 11 ', and when the volume of third header 11 ' is the predetermined value, the interior liquid refrigerants of third header 11 '
Flow velocity can be considered 0, that is, the distribution of liquid refrigerants is carried out by static pressure, so as to reduce the shadow that flow velocity and pressure difference distribute refrigerant
It rings, is conducive to further improve the uniformity of the refrigerant distribution of micro-channel heat exchanger.
In order to further improve the utilization rate of refrigerant, supercooling apparatus 3 (does not show including mutually independent first pipeline in figure
Go out) and the second pipeline (not shown), one end company of the outlet tube 42 ' of the second gas-liquid separation device 4 ' and first pipeline
Logical, the other end of first pipeline with outdoor unit for connect, the air outlet pipe 43 ' of the second gas-liquid separation device 4 ' and described the
One end connection of two pipelines, the other end of second pipeline are connected with the air inlet pipe 91 of gas-liquid separator 9, the second gas-liquid separation
Second flow control device 5 ' is equipped between the air outlet pipe 43 ' of device 4 ' and first pipeline, when second flow control device
During 5 ' opening, second flow control device 5 ' can be between the air outlet pipe 43 ' of the second gas-liquid separation device 4 ' and first pipeline
Refrigerant be depressured and current limliting, when second flow control device 5 ' is closed, the air outlet pipe 43 ' of the second gas-liquid separation device 4 '
Pipeline between first pipeline is closed.In refrigeration work, it can open second flow control device 5 ', the second gas-liquid
After decompression limit and stream, temperature declines the interior refrigerant of separator 4 ', and enters second pipeline of supercooling apparatus 3, and second
The interior liquid refrigerants of gas-liquid separation device 4 ' can enter the first pipeline of supercooling apparatus 3, so as to using in second pipeline
Refrigerant can be entered in gas-liquid separator 9 by the air inlet pipe of gas-liquid separator 9, in the gas-liquid separator 9 after gas-liquid separation
Gaseous coolant be included in compressor 2, and can continue on for freezing or heating, for the refrigerant in second pipeline to described
The refrigerant of one pipeline is subcooled, can be so as to further improve the degree of supercooling of supercooling apparatus 3 after the completion of supercooling, and improves refrigerant
Utilization rate.When heating work, the refrigerant from indoor unit enters the second gas-liquid separation device 4 ' from supercooling apparatus 3, the
Two gas-liquid separation devices 4 ' are interior after gas-liquid separation, can open second flow control device 5 ', gaseous coolant can be by described
Second pipeline enters gas-liquid separator 9, and the gaseous coolant for avoiding second flow control device 5 ' interior can not excessively discharge, and influence just
Normal gas-liquid separation.
It, can be in the housing 40 ' of the second gas-liquid separation device 4 ' for automatically controlling to second flow control device 5 '
Top setting second pressure sensor 44 ', second pressure sensor 44 ' can detect the pressure of 4 ' interior refrigerant of the second gas-liquid separation device
Power simultaneously feeds back the interior pressure information of the second gas-liquid separation device 4 ' to the master control substrate；In the shell of the second gas-liquid separation device 4 '
The side wall setting second temperature sensor 45 ' of body 40 ', it is interior that second temperature sensor 45 ' can detect the second gas-liquid separation device 4 '
The saturation temperature of refrigerant and the temperature information that the second gas-liquid separation device 4 ' is fed back to the master control substrate, the master control substrate can
It is interior cold with the presence or absence of gaseous state according to the second gas-liquid separation device of the pressure and temperature information of the second gas-liquid separation device 4 ' judgement 4 '
Matchmaker, in heating, if the second gas-liquid separation device 4 ' is interior there are gaseous coolant, the master control substrate controls the second flow
Device 5 ' is opened, and gaseous coolant is drained into gas-liquid separator 9, is controlled so as to fulfill being automated to second flow control device 5 '
System, improves work efficiency.
Second flow control device 5 ' includes the second capillary 51 ' and second switch solenoid valve 52 ', the second capillary 51 '
And second switch solenoid valve 52 ' is series between the air outlet pipe 41 ' of the second gas-liquid separation device 4 ' and supercooling apparatus 3, second opens
Powered-down magnet valve 52 ' and the master control substrate connection, so as to control supercooling apparatus 3 and second by second switch solenoid valve 12 '
The on and off of the pipeline of gas-liquid separation device 4 ', in refrigeration work, second switch solenoid valve 52 ' is opened, and is being heated
During work, second switch solenoid valve 52 ' is closed, and the gaseous coolant for flowing through it is depressured by the second capillary 51 ', is limited
Stream, and cost can be reduced using the second capillary 51 ' and second switch solenoid valve 52 ' of series connection；
Or second flow control device 5 ' include electric expansion valve (not shown), the electric expansion valve with it is described
Master control substrate connection, the effect of the electric expansion valve is identical with the effect of capillary 51 ' and switch electromagnetic valve 52 ' connected,
And the structure of pipeline can be simplified using electric expansion valve.
Double pipe or plate heat exchanger or other, which can be used, in supercooling apparatus 3 heat-exchanger rigs of similar functions.
With reference to Fig. 5, Fig. 5 is a specific embodiment of air conditioner provided by the invention, and the air conditioner includes above-mentioned
Air-conditioner outdoor unit described in air conditioner room unit described in one embodiment and/or any of the above-described embodiment.
Specifically, the air conditioner includes indoor micro-channel heat exchanger 1, outdoor micro-channel heat exchanger 1 ', four-way valve 8, pressure
Contracting machine 2, gas-liquid separator 9 and supercooling apparatus 3, are linked to be circuit by pipeline；
Indoor micro-channel heat exchanger 1 includes the first header 11 and the second header 12, and outdoor micro-channel heat exchanger 1 ' wraps
Include 11 ' and the 4th header 12 ' of third header；
Pipeline between indoor micro-channel heat exchanger 1 and supercooling apparatus 3 is equipped with the first gas-liquid separation device 4, the first gas
Liquid separating apparatus 4 includes hollow first shell 40, and the inside of first shell 40 is used to carry out gas-liquid separation to refrigerant therein,
First shell 40 is equipped with the inlet tube 41 connected with 40 inside of first shell, outlet tube 42, air outlet pipe 43；First gas-liquid separation
The inlet tube 41 of device 4 is connected with supercooling apparatus 3,42 and first header 11 of outlet tube of the first gas-liquid separation device 4 into
Liquid pipe 111 connects, so as to which the outlet tube 42 for making the first gas-liquid separation device 4 is connected with the first header 11, the first gas-liquid separation
The air outlet pipe 43 of device 4 is connected with the second header 12；
The second gas-liquid separation device 4 ', the second gas-liquid separation are equipped between outdoor micro-channel heat exchanger 1 ' and supercooling apparatus 3
Device 4 ' includes hollow second shell 40 ', and the inside of second shell 40 ' is used to carry out gas-liquid separation to refrigerant therein, the
Two housings 40 ' are equipped with the inlet tube 41 ' connected internal with second shell 40 ', outlet tube 42 ', air outlet pipe 43 ', outdoor micro- logical
Road heat exchanger 1 ' includes 11 ' and the 4th header 12 ' of third header, the inlet tube 41 ' and mistake of the second gas-liquid separation device 4 '
Device for cooling 3 connects, and the outlet tube 42 ' of the second gas-liquid separation device 4 ' is connected with the inlet tube 111 ' of third header 11 ', and second
The air outlet pipe 43 ' of gas-liquid separation device 4 ' is connected with the air inlet pipe 91 of gas-liquid separator 9, the air outlet pipe of the 4th header 12 '
121 ' connect with four-way valve 8；
First flow control device 5 is set between 43 and second header 12 of air outlet pipe of first gas-liquid separation device 4；
Supercooling apparatus 3 includes mutually independent first pipeline (not shown) and the second pipeline (not shown), the
The outlet tube 42 ' of two gas-liquid separation devices 4 ' is connected with one end of first pipeline, and the other end of first pipeline is used for
It is connected with outdoor unit, the air outlet pipe 43 ' of the second gas-liquid separation device 4 ' is connected with one end of second pipeline, second pipe
The other end on road is connected with the air inlet pipe 91 of gas-liquid separator 9, the air outlet pipe 43 ' of the second gas-liquid separation device 4 ' and described first
Second flow control device 5 ' is equipped between pipeline；
The top setting first pressure sensor 44 of the housing 40 of first gas-liquid separation device 4, fills in the first gas-liquid separation
It puts and the first temperature sensor 45 is set on the side wall of 4 housing 40, the top setting of the housing 40 ' of the second gas-liquid separation device 4 '
Second pressure sensor 44 ' sets second temperature sensor 45 ' in the side wall of the housing 40 ' of the second gas-liquid separation device 4 '；
First flow control device 5 includes capillary 51 and switch electromagnetic valve 52, and capillary 51 and switch electromagnetic valve 52 are gone here and there
It is coupled between 43 and second header 12 of air outlet pipe of the first gas-liquid separation device 4, switch electromagnetic valve 52 and the master control substrate
Connection；Second flow control device 5 ' includes capillary 51 ' and switch electromagnetic valve 52 ', capillary 51 ' and switch electromagnetic valve 52 '
It is series between the air outlet pipe 41 ' of the second gas-liquid separation device 4 ' and supercooling apparatus 3, switch electromagnetic valve 52 ' and the master control base
Plate connects.
Or first flow control device 5 and second flow control device 5 ' can be used electric expansion valve and (do not show in figure
Go out), and the electric expansion valve with the master control substrate connection.
Double pipe or plate heat exchanger or other, which can be used, in supercooling apparatus 3 heat-exchanger rigs of similar functions.
It should be noted that the air conditioner described in the present embodiment can be multi-connected air conditioner device, wherein in the air conditioner chamber
Machine can have multiple, and an air-conditioner outdoor unit can connect multiple air conditioner room units or the multiple simultaneously
It is connect again with an air-conditioner outdoor unit after air conditioner room unit parallel connection, such as：As shown in figure 5, the first connection can be passed through
71 and second connecting tube 72 of pipe reconnects an air conditioner room unit, and specific connection mode can refer to described in Fig. 5
The connection mode of air conditioner room unit and the air-conditioner outdoor unit.
Due to each reality of the air conditioner room unit used in the air conditioner of the present embodiment and above-mentioned air conditioner room unit
The air conditioner room unit applied described in example is identical, and therefore, therefore the air conditioner of the present embodiment and above-mentioned air conditioner room unit is each
Air conditioner room unit in embodiment can solve the technical issues of identical, and reach identical desired effect.Simultaneously as at this
The air-conditioning described in each embodiment of the air-conditioner outdoor unit with above-mentioned air-conditioner outdoor unit used in the air conditioner of embodiment
Device outdoor unit is identical.Therefore, outside the air conditioner chamber in each embodiment of the air conditioner of the present embodiment and above-mentioned air-conditioner outdoor unit
Function solves the technical issues of identical, and reaches identical desired effect.
Other compositions about the air conditioner described in the embodiment of the present invention have been well known to those skilled in the art, herein
No longer it is described in detail.
In the description of this specification, particular features, structures, materials, or characteristics can be real in any one or more
It applies and is combined in an appropriate manner in example or example.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (11)
1. a kind of air conditioner room unit, including indoor micro-channel heat exchanger, the interior micro-channel heat exchanger includes the first afflux
Pipe and the second header, first header are used to shunt refrigerant in refrigeration, and second header is used for
Refrigerant is shunted during heating, which is characterized in that further include the first gas-liquid separation device, the first gas-liquid separation device packet
Include hollow first shell, the inside of the first shell for gas-liquid separation, the first shell be equipped with respectively with it is described
Inlet tube, outlet tube and the air outlet pipe connected inside first shell, the inlet tube and air conditioner of first gas-liquid separation device
Outdoor unit supercooling apparatus connection, the outlet tube of first gas-liquid separation device is connected with first header, described
The air outlet pipe of first gas-liquid separation device is connected with second header, wherein, the feed liquor of first gas-liquid separation device
Pipe is directed into bottom at the top of the first shell；
The volume of first header is equal to predetermined value, first collects when the volume of first header is the predetermined value
The flow velocity of liquid refrigerants in flow tube is considered as 0.
2. air conditioner room unit according to claim 1, which is characterized in that the air outlet pipe of first gas-liquid separation device
First flow control device is equipped between second header, when the first flow control device is opened, described the
One volume control device can drop the refrigerant between the air outlet pipe of first gas-liquid separation device and second header
Pressure and current limliting, when the first flow control device is closed, the air outlet pipe of first gas-liquid separation device and described second
Pipeline between header is closed.
3. air conditioner room unit according to claim 2, which is characterized in that set at the top of first gas-liquid separation device
There is first pressure sensor, the first pressure sensor can detect the pressure of refrigerant in first gas-liquid separation device, and
The pressure information in first gas-liquid separation device is fed back to the master control substrate of air conditioner, first gas-liquid separation device
Side wall is equipped with the first temperature sensor, and first temperature sensor can detect the full of refrigerant in first gas-liquid separation device
And temperature, and the temperature information in first gas-liquid separation device is fed back to the master control substrate, the master control substrate can root
Judge to whether there is gaseous state in first gas-liquid separation device according to the pressure and temperature information of first gas-liquid separation device
Refrigerant, in refrigeration, if there are gaseous coolants, the master control substrate in first gas-liquid separation device to make the first flow
Control device is opened.
4. air conditioner room unit according to claim 3, which is characterized in that the compressor of the master control substrate and air conditioner
Gas exhaust piping on high-pressure pressure sensor connection, the high-pressure pressure sensor can detect the pressure at expulsion of the compressor
And pressure at expulsion information is fed back to the master control substrate, in heating, if the pressure at expulsion is more than predetermined value, the master control base
Plate can open the first flow control device, if the pressure at expulsion is not more than predetermined value, the master control substrate can make institute
State the closing of first flow control device.
5. air conditioner room unit according to claim 3 or 4, which is characterized in that the first flow control device includes
First capillary and first switch solenoid valve, first capillary and the first switch solenoid valve are series at first gas
Between the air outlet pipe of liquid separating apparatus and second header, the first switch solenoid valve and the master control substrate connection；
Or the first flow control device includes electric expansion valve, the electric expansion valve and the master control substrate connection.
6. a kind of air-conditioner outdoor unit, including outdoor micro-channel heat exchanger, supercooling apparatus and gas-liquid separator, the outdoor is micro- logical
Road heat exchanger includes third header, and the third header is used to shunt refrigerant in heating, which is characterized in that also
Including the second gas-liquid separation device, second gas-liquid separation device include hollow second shell, the second shell it is interior
Portion be used for gas-liquid separation, the second shell be equipped with respectively with the second shell inside connect inlet tube, outlet tube and
Air outlet pipe, the inlet tube of second gas-liquid separation device are connected with the supercooling apparatus, second gas-liquid separation device
Outlet tube is connected with the third header, the air outlet pipe of second gas-liquid separation device and the air inlet of the gas-liquid separator
Pipe connects, wherein, the inlet tube of second gas-liquid separation device is directed into bottom at the top of the second shell；
The volume of the third header is equal to predetermined value, first collects when the volume of the third header is the predetermined value
The flow velocity of liquid refrigerants in flow tube is considered as 0.
7. air-conditioner outdoor unit according to claim 6, which is characterized in that the supercooling apparatus includes mutually independent the
One pipeline and the second pipeline, the outlet tube of second gas-liquid separation device are connected with one end of first pipeline, and described
The other end of one pipeline with indoor unit for connecting, the air outlet pipe of second gas-liquid separation device and the one of second pipeline
End connection, the other end of second pipeline are connected with the air inlet pipe of the gas-liquid separator of air conditioner, second gas-liquid separation
Second flow control device is equipped between the air outlet pipe of device and second pipeline, when the second flow control device is opened
When, the second flow control device can be to the refrigerant between the air outlet pipe of second gas-liquid separation device and second pipeline
It is depressured and current limliting, when the second flow control device is closed, the air outlet pipe of second gas-liquid separation device and institute
The pipeline stated between the second pipeline is closed.
8. air-conditioner outdoor unit according to claim 7, which is characterized in that set at the top of second gas-liquid separation device
There is second pressure sensor, the second pressure sensor can detect the pressure of refrigerant in second gas-liquid separation device, and
The pressure information in second gas-liquid separation device is fed back to the master control substrate of air conditioner, second gas-liquid separation device
Side wall is equipped with second temperature sensor, and the second temperature sensor can detect the full of refrigerant in second gas-liquid separation device
The temperature information of second gas-liquid separation device is fed back with temperature and to the master control substrate, the master control substrate can be according to institute
It states in pressure and temperature information judgement second gas-liquid separation device of the second gas-liquid separation device and whether there is gaseous coolant,
In heating, if there are gaseous coolant in second gas-liquid separation device, the master control substrate controls the second flow
Device is opened.
9. the air-conditioner outdoor unit according to right wants 8, which is characterized in that the second flow control device includes second mao
Tubule and second switch solenoid valve, second capillary and the second switch solenoid valve are series at second gas-liquid separation
Between the air outlet pipe of device and the supercooling apparatus, the master control substrate connection of the switch electromagnetic valve and air conditioner；
Or the second flow control device includes electric expansion valve, the electric expansion valve and the master control substrate connection.
10. air-conditioner outdoor unit according to claim 9, which is characterized in that the supercooling apparatus is double pipe or board-like
Heat exchanger.
11. a kind of air conditioner, which is characterized in that including claim 1 ~ 5 any one of them air conditioner room unit and/or right
It is required that 6 ~ 10 any one of them air-conditioner outdoor units.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410364536.1A CN105318606B (en) | 2014-07-29 | 2014-07-29 | A kind of air conditioner room unit, outdoor unit and air conditioner |
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| CN201410364536.1A CN105318606B (en) | 2014-07-29 | 2014-07-29 | A kind of air conditioner room unit, outdoor unit and air conditioner |
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| CN105318606B true CN105318606B (en) | 2018-06-26 |
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| CN109668233A (en) * | 2018-12-12 | 2019-04-23 | 广东美的暖通设备有限公司 | Multi-line system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337720A (en) * | 1999-05-24 | 2000-12-08 | Hitachi Ltd | Air conditioner |
| CN100483047C (en) * | 2007-01-26 | 2009-04-29 | 清华大学 | Gas-Liquid separating evaporator |
| KR101162756B1 (en) * | 2007-02-24 | 2012-07-05 | 삼성전자주식회사 | A water-cooling type air conditioner and control method thereof |
| JP2009085479A (en) * | 2007-09-28 | 2009-04-23 | Daikin Ind Ltd | Hot water supply device |
| CN201811481U (en) * | 2010-01-25 | 2011-04-27 | 大连三洋压缩机有限公司 | Low-temperature heat pump system |
| CN101957061A (en) * | 2010-11-03 | 2011-01-26 | 湖南利能科技股份有限公司 | Quasi-two-stage compression ultralow temperature air source heat pump water heater with economizer |
| CN202521848U (en) * | 2011-07-28 | 2012-11-07 | 广东芬尼克兹节能设备有限公司 | Air source heat pump water heater with supercooling copper pipe |
| CN202304102U (en) * | 2011-09-15 | 2012-07-04 | 广东芬尼克兹节能设备有限公司 | Air-speed-adjustable ultra-low-temperature air source heat pump |
| CN102679609A (en) * | 2012-06-07 | 2012-09-19 | 四川同达博尔置业有限公司 | Air-cooled heat pump air conditioner |
| CN202792727U (en) * | 2012-08-29 | 2013-03-13 | 约克广州空调冷冻设备有限公司 | Super-cooler circulation loop, refrigeration loop and refrigeration plant |
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