CN104676944B - Air-conditioning system and its refrigerant adjusting method - Google Patents
Air-conditioning system and its refrigerant adjusting method Download PDFInfo
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- CN104676944B CN104676944B CN201310618388.7A CN201310618388A CN104676944B CN 104676944 B CN104676944 B CN 104676944B CN 201310618388 A CN201310618388 A CN 201310618388A CN 104676944 B CN104676944 B CN 104676944B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes that a kind of air-conditioning system and its refrigerant adjusting method, the air-conditioning system include：Air conditioner；Detector, for detecting running parameter during air conditioner operation；Cold medium regulator, cold medium regulator include：First magnetic valve and second solenoid valve；Fluid reservoir, the import of fluid reservoir are connected in the pipeline between outdoor heat exchanger and throttling arrangement by the first magnetic valve, and the outlet of fluid reservoir is connected in the pipeline between gas-liquid separator and four-way valve by second solenoid valve；Controller, controller is respectively connected with detector, the first magnetic valve and second solenoid valve, when controller judges that the coolant quantity in refrigerant circulation circuit is unsatisfactory for preparatory condition according to running parameter, by controlling the first magnetic valve and second solenoid valve to adjust the coolant quantity in refrigerant circulation circuit.The air-conditioning system and its refrigerant adjusting method of the present invention, system coolant quantity can be adjusted for different operating mode loads, improve operational reliability, improve comfort.
Description
Technical field
The present invention relates to the refrigerant adjusting method of a kind of air-conditioning system, and the air-conditioning system.
Background technology
Air-conditioning system is the common system freezed, heated, and when air-conditioning system is run under different operating mode loads, is
Coolant quantity required for system is different, such as air-conditioning system runs big load heating condition and operation Smaller load cooling condition
When, the coolant quantity required for air-conditioning system is fewer, such as during the worst cold case such as air-conditioning system operation Smaller load heating, system institute
The relatively more effect of the coolant quantity needed is more preferable.And in the prior art, the quantitative refrigerant operation of air-conditioning system generally use causes
Run some big loads or Smaller load etc. need not too many or refrigerant very little when, the ginseng such as the operating pressure of air-conditioning system, temperature
Number influences air-conditioning system reliability of operation, and the comfortableness that air-conditioning system uses beyond the required scope used.
The content of the invention
The purpose of the present invention is intended at least solve above-mentioned technical problem to a certain extent.
Therefore, it is an object of the present invention to propose a kind of air-conditioning system, the air-conditioning system operationally, can be directed to
System coolant quantity is adjusted different operating mode loads, improves operational reliability, improves comfort.In addition, the air-conditioning system
Unite easy for installation, when system connecting pipe is long without quantitatively adding coolant quantity.
It is another object of the present invention to the refrigerant adjusting method for proposing a kind of air-conditioning system.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of air-conditioning system, and the air-conditioning system includes：Air-conditioning
Device, the air conditioner include compressor, gas-liquid separator, four-way valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement, institute
State compressor, gas-liquid separator, four-way valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement and form the cold of the air conditioner
Matchmaker's circulation loop；Detector, for detecting the running parameter during air conditioner operation；Cold medium regulator, the refrigerant are adjusted
Regulating device includes：First magnetic valve and second solenoid valve；Fluid reservoir, the import of the fluid reservoir are connected by first magnetic valve
It is connected in the pipeline between the outdoor heat exchanger and the throttling arrangement, and the outlet of the fluid reservoir passes through the described second electricity
Magnet valve is connected in the pipeline between the gas-liquid separator and the four-way valve；Controller, the controller and the detection
Device, first magnetic valve and second solenoid valve are respectively connected with, the air conditioner that the controller detects according to the detector
Running parameter judge whether the coolant quantity in the refrigerant circulation circuit meets preparatory condition, and when being unsatisfactory for preparatory condition
By controlling first magnetic valve and second solenoid valve to adjust the coolant quantity in the refrigerant circulation circuit.
The air-conditioning system of the embodiment of the present invention, by increasing cold medium regulator within air-conditioning systems, controller is according to inspection
The detected value of device is surveyed, judges whether coolant quantity corresponding to the current service load of air conditioner meets preparatory condition, and discontented
During sufficient preparatory condition, corresponding magnetic valve in cold medium regulator is controlled to be turned on and off, so as to in refrigerant circulation circuit
Coolant quantity is adjusted, and can improve the reliability of air-conditioning system, improves the comfortableness that air-conditioning system uses.
Specifically, in some embodiments of the invention, when the air conditioner is in cooling operation mode, wherein, such as
When coolant quantity in refrigerant circulation circuit described in fruit is more than or equal to the first preset value, the controller controls first magnetic valve
It is open-minded, and control the second solenoid valve to close, the refrigerant in the refrigerant circulation circuit is discharged into the fluid reservoir；If
When coolant quantity in the refrigerant circulation circuit is less than first preset value, the controller controls the second solenoid valve to open
It is logical, and first closed electromagnetic valve is controlled, the refrigerant in the fluid reservoir is discharged into the refrigerant circulation circuit.
In some embodiments of the invention, can be with water heating in air-conditioning system, the cold medium regulator also includes the
Three magnetic valves, one end of the 3rd magnetic valve and the inlet communication of the fluid reservoir, the other end of the 3rd magnetic valve connect
It is connected in the pipeline between the throttling arrangement and the indoor heat exchanger, control terminal and the control of the 3rd magnetic valve
Device is connected, wherein, when the air conditioner is in heating operation mode, if the coolant quantity in the refrigerant circulation circuit is more than
During equal to the second preset value, the controller controls the 3rd magnetic valve open-minded, and controls first magnetic valve and described
Second solenoid valve is closed, and the refrigerant in the refrigerant circulation circuit is discharged into the fluid reservoir；If the refrigerant circulation returns
When coolant quantity in road is less than second preset value, the controller controls the second solenoid valve open-minded, and described in control
First magnetic valve and the 3rd closed electromagnetic valve, the refrigerant circulation circuit is discharged into by the refrigerant in the fluid reservoir.
In some embodiments of the invention, the cold medium regulator also includes：Charging valve, the charging valve with it is described
Fluid reservoir connects, and is filled with the refrigerant of predetermined amount into the fluid reservoir by the charging valve.
Charging valve is set on the fluid reservoir of cold medium regulator, the refrigerant for the predetermined amount that prestored into fluid reservoir, Ke Yi
It is more convenient without additional quantitative coolant quantity when the chain adapter design of air-conditioning system exceeds standard pipe arrangement, flexibly.
In some embodiments of the invention, the cold medium regulator also includes：Throttle mechanism, the throttle mechanism position
Between the second solenoid valve and the gas-liquid separator.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes that a kind of refrigerant of above-described embodiment air-conditioning system is adjusted
Section method, the refrigerant adjusting method of the air-conditioning system comprise the following steps：Detect the running parameter during air conditioner operation；Root
Judge whether the coolant quantity in the refrigerant circulation circuit meets preparatory condition according to the running parameter；If not, pass through control
First magnetic valve and second solenoid valve are to adjust the coolant quantity in the refrigerant circulation circuit.
The refrigerant adjusting method of the air-conditioning system of the embodiment of the present invention, according to detection air conditioner operating parameter, judge air-conditioning
Whether coolant quantity corresponding to the current service load of device meets preparatory condition, and when being unsatisfactory for preparatory condition, controls refrigerant
Corresponding magnetic valve is turned on and off in adjusting means, and then the coolant quantity in refrigerant circulation circuit is adjusted, so as to
To improve the reliability of air-conditioning system, the comfort of air-conditioning system is improved.
Wherein, the running parameter includes pressure at expulsion, delivery temperature and the admission pressure of the compressor.
Specifically, in some embodiments of the invention, when the air conditioner is in cooling operation mode, wherein, such as
When coolant quantity in refrigerant circulation circuit described in fruit is more than or equal to the first preset value, control first magnetic valve open-minded, and control
Make the second solenoid valve to close, the refrigerant in the refrigerant circulation circuit is discharged into the fluid reservoir；If the refrigerant
When coolant quantity in circulation loop is less than first preset value, control the second solenoid valve open-minded, and control described first
Closed electromagnetic valve, the refrigerant in the fluid reservoir is discharged into the refrigerant circulation circuit.
Further, in some embodiments of the invention, when air-conditioning system can be freezed, the refrigerant regulation dress
Putting also includes the 3rd magnetic valve, one end of the 3rd magnetic valve and the inlet communication of the fluid reservoir, the 3rd magnetic valve
The other end be connected in the pipeline between the throttling arrangement and the indoor heat exchanger, wherein, when the air conditioner is in
During heating operation mode, if the coolant quantity in the refrigerant circulation circuit is more than or equal to the second preset value, control described the
Three magnetic valves are open-minded, and control first magnetic valve and the second solenoid valve to close, by the refrigerant circulation circuit
Refrigerant be discharged into the fluid reservoir；If the coolant quantity in the refrigerant circulation circuit is less than second preset value, control
The second solenoid valve is open-minded, and controls first magnetic valve and the 3rd closed electromagnetic valve, by the fluid reservoir
Refrigerant be discharged into the refrigerant circulation circuit.
In some embodiments of the invention, described by controlling first magnetic valve and second solenoid valve to adjust
Before coolant quantity in the refrigerant circulation circuit, in addition to：By rushing note valve into the fluid reservoir on the fluid reservoir
It is filled with the refrigerant of predetermined amount.
The refrigerant for the predetermined amount that prestored by the charging valve on the fluid reservoir of cold medium regulator into fluid reservoir, can be in sky
It is more convenient without additional quantitative coolant quantity when the chain adapter design of adjusting system exceeds standard pipe arrangement, flexibly.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the schematic diagram according to the air-conditioning system of one embodiment of the invention；
Fig. 2 is the schematic diagram according to the cold medium regulator of the air-conditioning system of the embodiment of the present invention；And
Fig. 3 is the flow chart according to the refrigerant adjusting method of the air-conditioning system of one embodiment of the invention.
Reference
Detector 10, cold medium regulator 20, compressor 001, gas-liquid separator 002, four-way valve 003, indoor heat exchanger
004th, outdoor heat exchanger 005 and throttling arrangement 006, the first magnetic valve 201, second solenoid valve 202 and fluid reservoir 203, charging valve
204, throttle mechanism 205, the 3rd magnetic valve 206.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only example, and
Purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity again.This
Outside, the invention provides various specific techniques and material examples, but those of ordinary skill in the art can be appreciated that
The applicable property of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it
" on " structure can include the first and second features and be formed as the embodiment that directly contacts, other feature shape can also be included
Into the embodiment between the first and second features, such first and second feature may not be direct contact.
In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanical connection or electrical connection or the connection of two element internals, can
To be to be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
With reference to following description and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention.In these descriptions
In accompanying drawing, some particular implementations in embodiments of the invention are specifically disclosed, to represent to implement the implementation of the present invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, the present invention
Embodiment includes all changes, modification and the equivalent fallen into the range of the spirit and intension of attached claims.
Air-conditioning system and its refrigerant adjusting method proposed according to embodiments of the present invention is described with reference to the accompanying drawings.
As shown in figure 1, the air-conditioning system of one embodiment of the invention includes air conditioner, detector 10, cold medium regulator
20 and controller（Do not indicated in figure）.Wherein, air conditioner includes compressor 001, gas-liquid separator 002, four-way valve 003, interior
Heat exchanger 004, outdoor heat exchanger 005 and throttling arrangement 006, compressor 001, gas-liquid separator 002, four-way valve 003, interior are changed
Hot device 004, outdoor heat exchanger 005 and throttling arrangement 006 form the refrigerant circulation circuit of air conditioner, specifically, compressor 001
Exhaust outlet 1 is connected with the D mouths of four-way valve 003, and the gas returning port 2 of compressor 001 is connected with one end 3 of gas-liquid separator 002, gas-liquid
The other end 4 of separator 002 is connected with the S mouths of four-way valve 003, and one end 5 of outdoor heat exchanger 005 connects with the C mouths of four-way valve 003
Connect, one end 7 of indoor heat exchanger 004 is connected with the E mouths of four-way valve 003, the other end 8 and throttling arrangement of indoor heat exchanger 004
006 one end 9 is connected, and the other end 0 of throttling arrangement 006 is connected with the other end 6 of outdoor heat exchanger 005.
Wherein, detector 10 is used to detect running parameter when air conditioner is run, such as detector 10 detects air conditioner fortune
The exhaust outlet 1 of compressor 001 discharges the parameter values such as the admission pressure at the pressure at expulsion, delivery temperature, gas returning port 2 of gas during row.
Cold medium regulator 20 is used to coolant quantity be adjusted for different service loads in air conditioner running.Specifically
Ground, as shown in Fig. 2 cold medium regulator 20 includes the first magnetic valve 201, second solenoid valve 202 and fluid reservoir 203, such as Fig. 1 institutes
Show, the import a of fluid reservoir 203 is connected to the pipe between outdoor heat exchanger 005 and throttling arrangement 006 by the first magnetic valve 201
Lu Zhong, and the outlet b of fluid reservoir 203 is connected between gas-liquid separator 002 and four-way valve 003 by second solenoid valve 202
In pipeline.In addition, controller is respectively connected with detector 10, the first magnetic valve 201 and second solenoid valve 202, controller according to
The running parameter for the air conditioner that detector 10 detects judges whether the coolant quantity in refrigerant circulation circuit meets preparatory condition, and
When being unsatisfactory for preparatory condition, by controlling the first magnetic valve 201 and second solenoid valve 202 to adjust in refrigerant circulation circuit
Coolant quantity, specific regulation process are as described below.
In addition, it is necessary to additional beyond the cold of pipe range when if connecting pipings exceeds system standard pipe arrangement when air conditioner is installed
Matchmaker measures, installation inconvenience, inadequate hommization.Preferably, in some embodiments of the invention, as shown in Fig. 2 cold medium regulator
20 can include charging valve 204, and charging valve 204 connects with fluid reservoir 203, be filled with by charging valve 204 into fluid reservoir 203 pre-
If the refrigerant of amount, so as to long in the design of the connecting tube of air-conditioning system, during beyond standard pipe arrangement, by what is prestored in fluid reservoir 203
Refrigerant is discharged into refrigeration system, more convenient without adding quantitative coolant quantity because of pipeline overlength, flexibly.In addition, in this hair
In bright one embodiment, as depicted in figs. 1 and 2, cold medium regulator 20 can also include throttle mechanism 205, throttle mechanism
205 between second solenoid valve 202 and gas-liquid separator 002.
Specifically, when air conditioner is in cooling operation mode, wherein, if the coolant quantity in refrigerant circulation circuit is more than
During equal to the first preset value, controller controls the first magnetic valve 201 open-minded, and controls second solenoid valve 202 to close, by refrigerant
Refrigerant in circulation loop is discharged into fluid reservoir 203.If the coolant quantity in refrigerant circulation circuit is less than the first preset value, control
Device control second solenoid valve 202 is open-minded, and controls the first magnetic valve 201 to close, and the refrigerant in fluid reservoir 203 is discharged into refrigerant
Circulation loop, wherein, when the first preset value can be understood as disclosure satisfy that air conditioner with current service load refrigerating operaton
Required more excellent coolant quantity.Specifically, shown in reference picture 1, in air conditioner refrigerating operaton, detector 10 detects the fortune of air conditioner
Row parameter, and sending to controller, controller by should operational factor coolant quantity compared with the first predetermined threshold value, such as
When fruit controller judges that the coolant quantity in refrigerant circulation circuit is more than or equal to the first preset value, i.e. refrigerant in air-conditioning refrigeration system
Amount is excessive, and controller controls the first magnetic valve 201 open-minded, and controls second solenoid valve 202 to close, then passes through outdoor heat exchanger
The refrigerant of 005 high pressure low temperature, fluid reservoir 203 is discharged into by the pipeline of the first magnetic valve 201.If in controller judgement system
Coolant quantity when being in the first preset threshold range, the first magnetic valve 201 of control is closed.In addition, if controller judge it is cold
When coolant quantity in matchmaker's circulation loop is less than the first preset value, i.e., the coolant quantity in air-conditioning refrigeration system is very few, in other words, this
When system in coolant quantity maintain controller it is bad with current working load refrigeration operational effect, then controller control the second electromagnetism
Valve 202 is open-minded, and controls the first magnetic valve 201 to close, and the refrigerant stored in fluid reservoir 203 can pass through second solenoid valve 202
It is discharged into the refrigerant circulation circuit of air conditioner.So in air conditioner refrigerating operaton, by controlling the first magnetic valve 201 and second
Magnetic valve 202 is turned on and off, it is possible to achieve the regulation to coolant quantity in air-conditioner coolant circulation loop, so that air-conditioning
Device reaches good effect with suitable coolant quantity refrigerating operaton.
In some embodiments of the invention, as shown in Fig. 2 and Fig. 1, if air conditioner can carry out heating operation, refrigerant
Adjusting means 20 can also set the 3rd magnetic valve 206, specifically, as shown in figure 1, one end of the 3rd magnetic valve 206 and liquid storage
The import a connections of tank 203, the other end of the 3rd magnetic valve 206 are connected between throttling arrangement 006 and indoor heat exchanger 004
In pipeline, the control terminal of the 3rd magnetic valve 206 is connected with controller, wherein, when air conditioner is in heating operation mode, if
When coolant quantity in refrigerant circulation circuit is more than or equal to the second preset value, controller controls the 3rd magnetic valve 206 open-minded, and controls
First magnetic valve 201 and second solenoid valve 202 are closed, and the refrigerant in refrigerant circulation circuit is discharged into the fluid reservoir 203；Such as
When coolant quantity in fruit refrigerant circulation circuit is less than the second preset value, controller control second solenoid valve 202 is open-minded, and controls the
One magnetic valve 201 and the 3rd magnetic valve 206 are closed, and the refrigerant in fluid reservoir 203 is discharged into refrigerant circulation circuit.Wherein,
Two preset values more excellent coolant quantity required when can be understood as disclosure satisfy that air conditioner with current service load heating operation.
Specifically, shown in reference picture 1, when air conditioner heat-production is run, detector 10 detects the operational factor of air conditioner, and sends to control
Device processed, controller by should operational factor coolant quantity compared with the second predetermined threshold value, if controller judges refrigerant
When coolant quantity in circulation loop is more than or equal to the second preset value, i.e., the coolant quantity in air conditioner coolant circulation loop is excessive, control
Device controls the 3rd magnetic valve 206 open-minded, and controls the first magnetic valve 201 and second solenoid valve 202 to close, then passes through indoor heat exchange
The refrigerant of the high pressure low temperature of device 004, fluid reservoir 203 is discharged into by the pipeline of the 3rd magnetic valve 206, if controller judges system
In coolant quantity when being in the second preset threshold range, the 3rd magnetic valve 206 of control is closed.In addition, if controller judges
When coolant quantity in refrigerant circulation circuit is less than the second preset value, i.e., the coolant quantity in air-conditioning refrigeration system is very few, in other words,
Now the coolant quantity in system maintains controller ineffective with current working load heating operation, then the electricity of controller control second
Magnet valve 202 is open-minded, and controls the first magnetic valve 201 and the 3rd magnetic valve 206 to close, and the refrigerant stored in fluid reservoir 203 can be with
It is discharged into by second solenoid valve 202 in the refrigerant circulation circuit of air conditioner.So in air conditioner heat-production operation, pass through control the
One magnetic valve 201, second solenoid valve 202 and the 3rd magnetic valve 206 are turned on and off, it is possible to achieve air-conditioner coolant is circulated
The regulation of coolant quantity in loop, so that air conditioner reaches good effect with suitable coolant quantity heating operation.
In summary, the air-conditioning system of the embodiment of the present invention, by increasing cold medium regulator within air-conditioning systems, control
Device judges whether coolant quantity corresponding to the current service load of air conditioner meets preparatory condition according to the detected value of detector,
And when being unsatisfactory for preparatory condition, corresponding magnetic valve in cold medium regulator is controlled to be turned on and off, so as to refrigerant circulation
Coolant quantity in loop is adjusted, and can improve the reliability of air-conditioning system, improves the comfortableness that air-conditioning system uses.Separately
Outside, charging valve is set on the fluid reservoir of cold medium regulator, the refrigerant for the predetermined amount that prestored into fluid reservoir can be in air-conditioning system
It is more convenient without additional quantitative coolant quantity when the chain adapter design of system exceeds standard pipe arrangement, flexibly.
A kind of refrigerant regulation of air-conditioning system that embodiment proposes according to a further aspect of the invention is described with reference to the accompanying drawings
Method, wherein, air-conditioning system is the air-conditioning system that above-described embodiment proposes, i.e., air-conditioning system includes air conditioner and refrigerant regulation dress
Put, wherein, air conditioner includes compressor, gas-liquid separator, four-way valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement, pressure
The refrigerant circulation that contracting machine, gas-liquid separator, four-way valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement form air conditioner returns
Road, cold medium regulator include the first magnetic valve, second solenoid valve and fluid reservoir, and the import of fluid reservoir is connected by the first magnetic valve
It is connected in the pipeline between outdoor heat exchanger and throttling arrangement, and the outlet of fluid reservoir is connected to gas-liquid point by second solenoid valve
From in the pipeline between device and four-way valve.
As shown in figure 3, the refrigerant adjusting method of the air-conditioning system of one embodiment of the invention comprises the following steps：
S1, running parameter when detection air conditioner is run.
When air conditioner is run, the operation running parameter of air conditioner is detected in real time, wherein, running parameter can include compression
The parameter values such as pressure at expulsion, delivery temperature and the admission pressure of machine.And judged according to the parameter of detection cold in cooling cycle system
Matchmaker's amount number, it is specific to perform step S2.
S2, judges whether the coolant quantity in refrigerant circulation circuit meets preparatory condition according to running parameter.
Specifically, for example, the preparatory condition of coolant quantity required during air conditioner difference operating mode load running can be set,
When air conditioner is run, judge whether the coolant quantity of current working load running meets according to the step S1 related operational factors detected
Preparatory condition, if meeting preparatory condition, step S4 is performed, if it is not, then performing step S3.
S3, by controlling the first magnetic valve and second solenoid valve to adjust the coolant quantity in refrigerant circulation circuit.
If judge that the coolant quantity in refrigerant circulation circuit is unsatisfactory for preparatory condition according to running parameter, pass through control
To adjust the coolant quantity in refrigerant circulation circuit, specific regulation process is as described below for first magnetic valve and second solenoid valve.
S4, air conditioner are run with current coolant quantity.
In addition, it is necessary to explanation, by controlling the first magnetic valve and second solenoid valve to adjust refrigerant circulation circuit
In coolant quantity before also include：Pass through the refrigerant for rushing note valve and predetermined amount being filled with into fluid reservoir on fluid reservoir.Specifically, it is empty
, it is necessary to which the additional coolant quantity beyond pipe range, installs inconvenience, no when if connecting pipings exceeds system standard pipe arrangement when adjusting device installation
Enough hommizations.Preferably, in some embodiments of the invention, cold medium regulator can include charging valve, pass through charging valve
The refrigerant of predetermined amount is filled with into fluid reservoir, so as to long in the design of the connecting tube of air-conditioning system, during beyond standard pipe arrangement, will be stored up
The refrigerant to be prestored in flow container is discharged into refrigeration system, more convenient without adding quantitative coolant quantity because of pipeline overlength, spirit
It is living.Also, it will can also be prestored when the coolant quantity in air conditioner refrigerating circulation loop is very few by second solenoid valve in fluid reservoir
Refrigerant discharge into cooling cycle system.
It is described more detail below and the refrigerant in the refrigeration cycle of air conditioner is adjusted by cold medium regulator
Process.
In some embodiments of the invention, when air conditioner is in cooling operation mode, wherein, if refrigerant circulation returns
When coolant quantity in road is more than or equal to the first preset value, the first magnetic valve of control is open-minded, and controls second solenoid valve to close, will
Refrigerant in refrigerant circulation circuit is discharged into the fluid reservoir；It is default that if the coolant quantity in refrigerant circulation circuit is less than described first
During value, control second solenoid valve is open-minded, and controls the first closed electromagnetic valve, and the refrigerant in fluid reservoir is discharged into refrigerant circulation returns
Road, wherein, the first preset value is required when can be understood as disclosure satisfy that air conditioner with current service load refrigerating operaton
More excellent coolant quantity.Specifically, in air conditioner refrigerating operaton, the operational factor of air conditioner is detected in real time, will be to ginseng should be run
Several coolant quantities is compared with the first predetermined threshold value, if it is determined that the coolant quantity in refrigerant circulation circuit is pre- more than or equal to first
If during value, i.e., the coolant quantity in air conditioner coolant circulation loop is excessive, and the first magnetic valve of control is open-minded, and controls second solenoid valve to close
Close, then by the refrigerant of the high pressure low temperature of outdoor heat exchanger, fluid reservoir is discharged into by the pipeline of the first magnetic valve, if it is determined that being
When coolant quantity in system is in the first preset threshold range, the first closed electromagnetic valve is controlled.In addition, if judge refrigerant circulation
When coolant quantity in loop is less than the first preset value, i.e., the coolant quantity in air-conditioning refrigeration system is very few, in other words, now system
In coolant quantity maintain controller bad with current working load refrigeration operational effect, then control second solenoid valve open-minded, and control
The first closed electromagnetic valve is made, the refrigerant stored in fluid reservoir can be discharged into the refrigerating circuit of air conditioner by second solenoid valve.
So in air conditioner refrigerating operaton, by the switch for controlling the first magnetic valve and second solenoid valve, it is possible to achieve to air conditioner
The regulation of coolant quantity in refrigerant circulation circuit, so that air conditioner reaches good effect with suitable coolant quantity refrigerating operaton
Fruit.
In addition, in some embodiments of the invention, if air conditioner can carry out heating operation, cold medium regulator is also
Including the 3rd magnetic valve, one end of the 3rd magnetic valve and the inlet communication of fluid reservoir, the other end of the 3rd magnetic valve are connected to section
Flow in the pipeline between device and indoor heat exchanger, wherein, when air conditioner is in heating operation mode, if refrigerant circulation returns
When coolant quantity in road is more than or equal to the second preset value, the 3rd magnetic valve of control is open-minded, and controls the first magnetic valve and the second electricity
Magnet valve is closed, and the refrigerant in refrigerant circulation circuit is discharged into fluid reservoir；If coolant quantity in refrigerant circulation circuit is less than the
During two preset values, control second solenoid valve is open-minded, and controls the first magnetic valve and the 3rd closed electromagnetic valve, by fluid reservoir
Refrigerant is discharged into refrigerant circulation circuit.Wherein, the second preset value can be understood as disclosure satisfy that air conditioner is born with current operating condition
Carry more excellent coolant quantity required during heating operation.Specifically, when air conditioner heat-production is run, the operation ginseng of air conditioner is detected in real time
Number, by should operational factor coolant quantity compared with the second predetermined threshold value, if it is determined that cold in refrigerant circulation circuit
When matchmaker's amount is more than or equal to the second preset value, i.e., the coolant quantity in air conditioner coolant circulation loop is excessive, and the 3rd magnetic valve of control is open-minded,
And control the first magnetic valve and second solenoid valve to close, then by the refrigerant of the high pressure low temperature of indoor heat exchanger, pass through the 3rd electricity
The pipeline of magnet valve is discharged into fluid reservoir, if it is determined that when the coolant quantity in system is in the second preset threshold range, control the 3rd
Closed electromagnetic valve.In addition, if when the coolant quantity for judging in refrigerant circulation circuit is less than the second preset value, i.e., air conditioner coolant circulates
Coolant quantity in loop is very few, and in other words, now the coolant quantity in system maintains controller to load heating fortune with current working
Row is ineffective, then controls second solenoid valve open-minded, and controls the first magnetic valve and the 3rd closed electromagnetic valve, is stored in fluid reservoir
Refrigerant can be discharged into by second solenoid valve in the refrigerant circulation circuit of air conditioner.So in air conditioner heat-production operation, lead to
Cross being turned on and off for the first magnetic valve of control, second solenoid valve and the 3rd magnetic valve, it is possible to achieve air-conditioner coolant is circulated
The regulation of coolant quantity in loop, so that air conditioner reaches good effect with suitable coolant quantity heating operation.
In summary, the refrigerant adjusting method of the air-conditioning system of the embodiment of the present invention, according to detection air conditioner operating parameter,
Judge whether coolant quantity corresponding to the current service load of air conditioner meets preparatory condition, and when being unsatisfactory for preparatory condition,
Corresponding magnetic valve is turned on and off in control cold medium regulator, and then the coolant quantity in refrigerant circulation circuit is adjusted
Section, so as to improve the reliability of air-conditioning system, improves the comfort of air-conditioning system.Filled in addition, being adjusted by refrigerant
The charging valve on fluid reservoir put prestores the refrigerant of predetermined amount into fluid reservoir, can exceed in the connecting tube design of air-conditioning system
It is more convenient without additional quantitative coolant quantity during standard pipe arrangement, flexibly.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment（As computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction）Use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example of computer-readable medium（Non-exhaustive list）Including following：Electricity with one or more wiring
Connecting portion（Electronic installation）, portable computer diskette box（Magnetic device）, random access memory（RAM）, read-only storage
（ROM）, erasable edit read-only storage（EPROM or flash memory）, fiber device, and portable optic disk is read-only deposits
Reservoir（CDROM）.In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array（PGA）, scene
Programmable gate array（FPGA）Deng.
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (5)
- A kind of 1. air-conditioning system, it is characterised in that including：Air conditioner, the air conditioner include compressor, gas-liquid separator, four-way valve, indoor heat exchanger, outdoor heat exchanger and throttling Device, the compressor, gas-liquid separator, four-way valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement form the air-conditioning The refrigerant circulation circuit of device；Detector, for detecting the running parameter during air conditioner operation, wherein, the running parameter includes the compressor Pressure at expulsion, delivery temperature and admission pressure；Cold medium regulator, the cold medium regulator include：First magnetic valve and second solenoid valve；Fluid reservoir, the import of the fluid reservoir is connected to the outdoor heat exchanger by first magnetic valve and the throttling fills In pipeline between putting, and the outlet of the fluid reservoir by the second solenoid valve be connected to the gas-liquid separator with it is described In pipeline between four-way valve；3rd magnetic valve, one end of the 3rd magnetic valve and the inlet communication of the fluid reservoir, the 3rd magnetic valve it is another One end is connected in the pipeline between the throttling arrangement and the indoor heat exchanger；Controller, the controller are respectively connected with the detector, first magnetic valve and second solenoid valve, and the described 3rd The control terminal of magnetic valve is connected with the controller, the work ginseng for the air conditioner that the controller detects according to the detector Number judges whether the coolant quantity in the refrigerant circulation circuit meets preparatory condition, and passes through control when being unsatisfactory for preparatory condition First magnetic valve, second solenoid valve and the 3rd magnetic valve to adjust the coolant quantity in the refrigerant circulation circuit, its In, when the air conditioner is in heating operation mode,If the coolant quantity in the refrigerant circulation circuit is more than or equal to the second preset value, the controller control the described 3rd Magnetic valve is open-minded, and controls first magnetic valve and the second solenoid valve to close, by the refrigerant circulation circuit Refrigerant is discharged into the fluid reservoir；If the coolant quantity in the refrigerant circulation circuit is less than second preset value, the controller control described second Magnetic valve is open-minded, and controls first magnetic valve and the 3rd closed electromagnetic valve, and the refrigerant in the fluid reservoir is arranged Enter the refrigerant circulation circuit；Charging valve, the charging valve are connected with the fluid reservoir, and predetermined amount is filled with into the fluid reservoir by the charging valve Refrigerant.
- 2. air-conditioning system as claimed in claim 1, it is characterised in that when the air conditioner is in cooling operation mode, its In,If the coolant quantity in the refrigerant circulation circuit is more than or equal to the first preset value, the controller control described first Magnetic valve is open-minded, and controls the second solenoid valve to close, and the refrigerant in the refrigerant circulation circuit is discharged into the liquid storage Tank；If the coolant quantity in the refrigerant circulation circuit is less than first preset value, the controller control described second Magnetic valve is open-minded, and controls first closed electromagnetic valve, and the refrigerant in the fluid reservoir is discharged into the refrigerant circulation returns Road.
- 3. air-conditioning system as claimed in claim 1, it is characterised in that the cold medium regulator also includes：Throttle mechanism, the throttle mechanism is between the second solenoid valve and the gas-liquid separator.
- 4. the refrigerant adjusting method of air-conditioning system as claimed in claim 1, it is characterised in that comprise the following steps：The running parameter during air conditioner operation is detected, wherein, pressure at expulsion of the running parameter including the compressor, Delivery temperature and admission pressure；Judge whether the coolant quantity in the refrigerant circulation circuit meets preparatory condition according to the running parameter；If not, returned by controlling first magnetic valve, second solenoid valve and the 3rd magnetic valve with adjusting the refrigerant circulation Coolant quantity in road, wherein, when the air conditioner is in heating operation mode,If the coolant quantity in the refrigerant circulation circuit is more than or equal to the second preset value, the 3rd magnetic valve is controlled to open It is logical, and control first magnetic valve and the second solenoid valve to close, the refrigerant in the refrigerant circulation circuit is discharged into The fluid reservoir；If the coolant quantity in the refrigerant circulation circuit is less than second preset value, the second solenoid valve is controlled to open It is logical, and first magnetic valve and the 3rd closed electromagnetic valve are controlled, the refrigerant in the fluid reservoir is discharged into described cold Matchmaker's circulation loop, wherein, returned described by controlling first magnetic valve and second solenoid valve with adjusting the refrigerant circulation Before coolant quantity in road, in addition to the cold of predetermined amount be filled with into the fluid reservoir by the charging valve on the fluid reservoir Matchmaker.
- 5. the refrigerant adjusting method of air-conditioning system as claimed in claim 4, it is characterised in that when the air conditioner is in refrigeration During operational mode, wherein,If the coolant quantity in the refrigerant circulation circuit is more than or equal to the first preset value, first magnetic valve is controlled to open It is logical, and control the second solenoid valve to close, the refrigerant in the refrigerant circulation circuit is discharged into the fluid reservoir；If the coolant quantity in the refrigerant circulation circuit is less than first preset value, the second solenoid valve is controlled to open It is logical, and first closed electromagnetic valve is controlled, the refrigerant in the fluid reservoir is discharged into the refrigerant circulation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310618388.7A CN104676944B (en) | 2013-11-28 | 2013-11-28 | Air-conditioning system and its refrigerant adjusting method |
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| CN201310618388.7A CN104676944B (en) | 2013-11-28 | 2013-11-28 | Air-conditioning system and its refrigerant adjusting method |
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| CN104676944B true CN104676944B (en) | 2018-04-03 |
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