CN104676944A - Air conditioning system and cold media adjusting method thereof - Google Patents
Air conditioning system and cold media adjusting method thereof Download PDFInfo
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- CN104676944A CN104676944A CN201310618388.7A CN201310618388A CN104676944A CN 104676944 A CN104676944 A CN 104676944A CN 201310618388 A CN201310618388 A CN 201310618388A CN 104676944 A CN104676944 A CN 104676944A
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- magnetic valve
- air
- refrigerant
- circulation circuit
- refrigerant circulation
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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 invention provides an air conditioning system and a cold media adjusting method of the air conditioning system. The air conditioning system comprises an air conditioner; a detector, which is used for detecting working parameter when the air conditioner is in running; a cold media adjusting device, which comprises a first electromagnetic valve and a second electromagnetic valve; a liquid storage tank, of which inlet is connected to a pipeline between an outdoor heat exchanger and a throttle device through the first electromagnetic valve, and outlet is connected to a pipeline between a gas-liquid separator and a four-way valve through the second electromagnetic valve; a controller, which is respectively connected with the detector, the first electromagnetic valve and the second electromagnetic valve, and adjusts the cold media amount in a cold media circulating loop through controlling the first electromagnetic valve and the second electromagnetic valve when it judges that the cold media amount in the cold media circulating loop not satisfies the preset conditions according to the working parameter. The air conditioning system and the cold media adjusting method of the air conditioning system can adjust the cold media amount specific to loads under different working conditions, improve the running reliability, and improve the using comfort level.
Description
Technical field
The present invention relates to a kind of air-conditioning system, and the refrigerant control method of this air-conditioning system.
Background technology
Air-conditioning system is the common system of carrying out freezing, heating, when air-conditioning system is run under different operating mode loads, coolant quantity required for system is different, such as, when air-conditioning system is run large load heating condition and runs Smaller load cooling condition, coolant quantity required for air-conditioning system is fewer, such as air-conditioning system runs Smaller load when the worst cold case such as to heat, the relatively more better effects if of the coolant quantity required for system.And in prior art, air-conditioning system adopts quantitative refrigerant to run usually, cause run some large load or Smaller load etc. do not need too much or very little refrigerant time, the parameter such as operating pressure, temperature of air-conditioning system exceeds the required scope used, affect air-conditioning system reliability of operation, and the comfortableness that air-conditioning system uses.
Summary of the invention
Object of the present invention is intended to solve above-mentioned technical problem at least to a certain extent.
For this reason, one object of the present invention is to propose a kind of air-conditioning system, and this air-conditioning system operationally, can regulate system coolant quantity for different operating mode load, improves operational reliability, improves comfort.In addition, this air-conditioning system is easy for installation, when system connecting pipe is long without the need to quantitatively adding coolant quantity.
Another object of the present invention is the refrigerant control method proposing a kind of air-conditioning system.
For achieving the above object, one aspect of the present invention embodiment proposes a kind of air-conditioning system, this air-conditioning system comprises: air-conditioner, described air-conditioner comprises compressor, gas-liquid separator, cross valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement, and described compressor, gas-liquid separator, cross valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement form the refrigerant circulation circuit of described air-conditioner; Detector, for detecting running parameter when described air-conditioner runs; Cold medium regulator, described cold medium regulator comprises: the first magnetic valve and the second magnetic valve; Fluid reservoir, the import of described fluid reservoir is connected in the pipeline between described outdoor heat exchanger and described throttling arrangement by described first magnetic valve, and the outlet of described fluid reservoir is connected in the pipeline between described gas-liquid separator and described cross valve by described second magnetic valve; Controller, described controller is connected with the second magnetic valve respectively with described detector, described first magnetic valve, the running parameter of the air-conditioner that described controller detects according to described detector judges whether the coolant quantity in described refrigerant circulation circuit meets pre-conditioned, and when not meeting pre-conditioned by controlling described first magnetic valve and the second magnetic valve to regulate the coolant quantity in described 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 the detected value of detector, judge whether the coolant quantity that the current service load of air-conditioner is corresponding meets pre-conditioned, and when not meeting pre-conditioned, controlling corresponding magnetic valve in cold medium regulator and opening or close, thus the coolant quantity in refrigerant circulation circuit is regulated, the reliability of air-conditioning system can be improved, improve the comfortableness that air-conditioning system uses.
Particularly, in some embodiments of the invention, when described air-conditioner is in cooling operation mode, wherein, if when the coolant quantity in described refrigerant circulation circuit is more than or equal to the first preset value, it is open-minded that described controller controls described first magnetic valve, and control described second closed electromagnetic valve, so that the refrigerant in described refrigerant circulation circuit is entered described fluid reservoir; If when the coolant quantity in described refrigerant circulation circuit is less than described first preset value, it is open-minded that described controller controls described second magnetic valve, and control described first closed electromagnetic valve, so that the refrigerant in described fluid reservoir is entered described refrigerant circulation circuit.
In some embodiments of the invention, can water heating in air-conditioning system, described cold medium regulator also comprises the 3rd magnetic valve, described one end of 3rd magnetic valve and the inlet communication of described fluid reservoir, the other end of described 3rd magnetic valve is connected in the pipeline between described throttling arrangement and described indoor heat exchanger, the control end of described 3rd magnetic valve is connected with described controller, wherein, when described air-conditioner is in heating operation mode, if when the coolant quantity in described refrigerant circulation circuit is more than or equal to the second preset value, it is open-minded that described controller controls described 3rd magnetic valve, and control described first magnetic valve and described second closed electromagnetic valve, so that the refrigerant in described refrigerant circulation circuit is entered described fluid reservoir, if when the coolant quantity in described refrigerant circulation circuit is less than described second preset value, it is open-minded that described controller controls described second magnetic valve, and control described first magnetic valve and described 3rd closed electromagnetic valve, so that the refrigerant in described fluid reservoir is entered described refrigerant circulation circuit.
In some embodiments of the invention, described cold medium regulator also comprises: charging valve, and described charging valve is communicated with described fluid reservoir, is filled with the refrigerant of predetermined amount by described charging valve in described fluid reservoir.
The fluid reservoir of cold medium regulator arranges charging valve, the refrigerant of the predetermined amount that prestores in fluid reservoir, can when the chain adapter design of air-conditioning system exceed standard pipe arrangement, without the need to adding quantitative coolant quantity, convenient, flexibly.
In some embodiments of the invention, described cold medium regulator also comprises: throttle mechanism, and described throttle mechanism is between described second magnetic valve and described gas-liquid separator.
For achieving the above object, the present invention on the other hand embodiment proposes a kind of refrigerant control method of above-described embodiment air-conditioning system, and the refrigerant control method of this air-conditioning system comprises the following steps: detect running parameter when described air-conditioner runs; Whether meet pre-conditioned according to the coolant quantity that described running parameter judges in described refrigerant circulation circuit; If not, by controlling described first magnetic valve and the second magnetic valve to regulate the coolant quantity in described refrigerant circulation circuit.
The refrigerant control method of the air-conditioning system of the embodiment of the present invention, according to detection air-conditioner operational factor, judge whether the coolant quantity that the current service load of air-conditioner is corresponding meets pre-conditioned, and when not meeting pre-conditioned, control corresponding magnetic valve in cold medium regulator to open or close, and then the coolant quantity in refrigerant circulation circuit is regulated, thus the reliability of air-conditioning system can be improved, improve the comfort of air-conditioning system.
Wherein, described running parameter comprises the pressure at expulsion of described compressor, delivery temperature and admission pressure.
Particularly, in some embodiments of the invention, when described air-conditioner is in cooling operation mode, wherein, if when the coolant quantity in described refrigerant circulation circuit is more than or equal to the first preset value, control described first magnetic valve open-minded, and control described second closed electromagnetic valve, so that the refrigerant in described refrigerant circulation circuit is entered described fluid reservoir; If when the coolant quantity in described refrigerant circulation circuit is less than described first preset value, control described second magnetic valve open-minded, and control described first closed electromagnetic valve, so that the refrigerant in described fluid reservoir is entered described refrigerant circulation circuit.
Further, in some embodiments of the invention, when air-conditioning system can be freezed, described cold medium regulator also comprises the 3rd magnetic valve, described one end of 3rd magnetic valve and the inlet communication of described fluid reservoir, the other end of described 3rd magnetic valve is connected in the pipeline between described throttling arrangement and described indoor heat exchanger, wherein, when described air-conditioner is in heating operation mode, if when the coolant quantity in described refrigerant circulation circuit is more than or equal to the second preset value, control described 3rd magnetic valve open-minded, and control described first magnetic valve and described second closed electromagnetic valve, so that the refrigerant in described refrigerant circulation circuit is entered described fluid reservoir, if when the coolant quantity in described refrigerant circulation circuit is less than described second preset value, control described second magnetic valve open-minded, and control described first magnetic valve and described 3rd closed electromagnetic valve, so that the refrigerant in described fluid reservoir is entered described refrigerant circulation circuit.
In some embodiments of the invention, described by controlling described first magnetic valve and the second magnetic valve with before regulating the coolant quantity in described refrigerant circulation circuit, also comprise: by described fluid reservoir rushing the refrigerant that note valve is filled with predetermined amount in described fluid reservoir.
The refrigerant of the predetermined amount that prestored in fluid reservoir by the charging valve on the fluid reservoir of cold medium regulator, can when the chain adapter design of air-conditioning system exceeds standard pipe arrangement, without the need to adding quantitative coolant quantity, convenient, flexibly.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the schematic diagram of air-conditioning system according to an embodiment of the invention;
Fig. 2 is the schematic diagram of the cold medium regulator of air-conditioning system according to the embodiment of the present invention; And
Fig. 3 is the flow chart of the refrigerant control method of air-conditioning system according to an embodiment of the invention.
Reference numeral
Detector 10, cold medium regulator 20, compressor 001, gas-liquid separator 002, cross valve 003, indoor heat exchanger 004, outdoor heat exchanger 005 and throttling arrangement 006, first magnetic valve 201, second magnetic valve 202 and fluid reservoir 203, charging valve 204, throttle mechanism 205, the 3rd magnetic valve 206.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
With reference to description below and accompanying drawing, these and other aspects of embodiments of the invention will be known.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
The air-conditioning system and refrigerant control method thereof that propose according to the embodiment of the present invention are described with reference to the accompanying drawings.
As shown in Figure 1, the air-conditioning system of one embodiment of the invention comprises air-conditioner, detector 10, cold medium regulator 20 and controller (not indicating in figure).Wherein, air-conditioner comprises compressor 001, gas-liquid separator 002, cross valve 003, indoor heat exchanger 004, outdoor heat exchanger 005 and throttling arrangement 006, compressor 001, gas-liquid separator 002, cross valve 003, indoor heat exchanger 004, outdoor heat exchanger 005 and throttling arrangement 006 form the refrigerant circulation circuit of air-conditioner, particularly, the exhaust outlet 1 of compressor 001 is connected with the D mouth of cross valve 003, the gas returning port 2 of compressor 001 is connected with one end 3 of gas-liquid separator 002, the other end 4 of gas-liquid separator 002 is connected with the S mouth of cross valve 003, one end 5 of outdoor heat exchanger 005 is connected with the C mouth of cross valve 003, one end 7 of indoor heat exchanger 004 is connected with the E mouth of cross valve 003, the other end 8 of indoor heat exchanger 004 is connected with one end 9 of throttling arrangement 006, the other end 0 of throttling arrangement 006 is connected with the other end 6 of outdoor heat exchanger 005.
Wherein, detector 10 is for detecting running parameter when air-conditioner runs, and such as detector 10 detects the parameter value such as admission pressure at the pressure at expulsion of compressor 001 exhaust outlet 1 Exhaust Gas when air-conditioner runs, delivery temperature, gas returning port 2 place.Cold medium regulator 20 is for regulating coolant quantity for different service loads at air-conditioner running.Particularly, as shown in Figure 2, cold medium regulator 20 comprises the first magnetic valve 201, second magnetic valve 202 and fluid reservoir 203, as shown in Figure 1, the import a of fluid reservoir 203 is connected in the pipeline between outdoor heat exchanger 005 and throttling arrangement 006 by the first magnetic valve 201, and the outlet b of fluid reservoir 203 is connected in the pipeline between gas-liquid separator 002 and cross valve 003 by the second magnetic valve 202.In addition, controller is connected with the second magnetic valve 202 respectively with detector 10, first magnetic valve 201, the running parameter of the air-conditioner that controller detects according to detector 10 judges whether the coolant quantity in refrigerant circulation circuit meets pre-conditioned, and when not meeting pre-conditioned, by controlling the first magnetic valve 201 and the second magnetic valve 202 to regulate the coolant quantity in refrigerant circulation circuit, concrete adjustment process illustrates as follows.
In addition, if when connecting pipings exceeds system standard pipe arrangement when air-conditioner is installed, need to add the coolant quantity exceeding pipe range, inconvenience is installed, inadequate hommization.Preferably, in some embodiments of the invention, as shown in Figure 2, cold medium regulator 20 can comprise charging valve 204, charging valve 204 is communicated with fluid reservoir 203, in fluid reservoir 203, the refrigerant of predetermined amount is filled with by charging valve 204, thus long in the tube connector design of air-conditioning system, when exceeding standard pipe arrangement, the refrigerant prestored in fluid reservoir 203 is arranged in system cooling system, without the need to adding quantitative coolant quantity because of pipeline overlength, convenient, flexibly.In addition, in one embodiment of the invention, as depicted in figs. 1 and 2, cold medium regulator 20 can also comprise throttle mechanism 205, and throttle mechanism 205 is between the second magnetic valve 202 and gas-liquid separator 002.
Particularly, when air-conditioner is in cooling operation mode, wherein, if when the coolant quantity in refrigerant circulation circuit is more than or equal to the first preset value, it is open-minded that controller controls the first magnetic valve 201, and control the second magnetic valve 202 and close, so that the refrigerant in refrigerant circulation circuit is entered fluid reservoir 203.If when the coolant quantity in refrigerant circulation circuit is less than the first preset value, it is open-minded that controller controls the second magnetic valve 202, and control the first magnetic valve 201 and close, so that the refrigerant in fluid reservoir 203 is entered refrigerant circulation circuit, wherein, the first preset value can be understood as and can meet air-conditioner with more excellent coolant quantity required during current service load refrigerating operaton.Particularly, with reference to shown in Fig. 1, when air-conditioner refrigerating operaton, detector 10 detects the operational factor of air-conditioner, and be sent to controller, controller is by should the coolant quantity of operational factor and the first predetermined threshold value compare, if when controller judges that the coolant quantity in refrigerant circulation circuit is more than or equal to the first preset value, namely the coolant quantity in air-conditioning refrigeration system is too much, it is open-minded that controller controls the first magnetic valve 201, and control the second magnetic valve 202 and close, then by the refrigerant of the high pressure low temperature of outdoor heat exchanger 005, fluid reservoir 203 is entered by the pipeline of the first magnetic valve 201.If when the coolant quantity in controller judgement system is in the first preset threshold range, controls the first magnetic valve 201 and close.In addition, if when controller judges that the coolant quantity in refrigerant circulation circuit is less than the first preset value, namely the coolant quantity in air-conditioning refrigeration system is very few, in other words, it is not good with current working load refrigeration operational effect that coolant quantity now in system maintains controller, then to control the second magnetic valve 202 open-minded for controller, and control the first magnetic valve 201 and close, and the refrigerant stored in fluid reservoir 203 can be entered in the refrigerant circulation circuit of air-conditioner by the second magnetic valve 202.So in air-conditioner refrigerating operaton, by controlling unlatching or the closedown of the first magnetic valve 201 and the second magnetic valve 202, the adjustment to coolant quantity in air-conditioner coolant closed circuit can be realized, thus make air-conditioner reach 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, cold medium regulator 20 can also arrange the 3rd magnetic valve 206, particularly, as shown in Figure 1, one end of 3rd magnetic valve 206 is communicated with the import a of fluid reservoir 203, the other end of the 3rd magnetic valve 206 is connected in the pipeline between throttling arrangement 006 and indoor heat exchanger 004, the control end of the 3rd magnetic valve 206 is connected with controller, wherein, when air-conditioner is in heating operation mode, if when the coolant quantity in refrigerant circulation circuit is more than or equal to the second preset value, it is open-minded that controller controls the 3rd magnetic valve 206, and control the first magnetic valve 201 and the second magnetic valve 202 cuts out, so that the refrigerant in refrigerant circulation circuit is entered described fluid reservoir 203, if when the coolant quantity in refrigerant circulation circuit is less than the second preset value, it is open-minded that controller controls the second magnetic valve 202, and control the first magnetic valve 201 and the 3rd magnetic valve 206 cuts out, so that the refrigerant in fluid reservoir 203 is entered refrigerant circulation circuit.Wherein, the second preset value can be understood as and can meet air-conditioner with more excellent coolant quantity required during current service load heating operation.Particularly, with reference to shown in Fig. 1, when air conditioner heat-production runs, detector 10 detects the operational factor of air-conditioner, and be sent to controller, controller is by should the coolant quantity of operational factor and the second predetermined threshold value compare, if when controller judges that the coolant quantity in refrigerant circulation circuit is more than or equal to the second preset value, namely the coolant quantity in air conditioner coolant closed circuit is too much, it is open-minded that controller controls the 3rd magnetic valve 206, and control the first magnetic valve 201 and the second magnetic valve 202 cuts out, then by the refrigerant of the high pressure low temperature of indoor heat exchanger 004, fluid reservoir 203 is entered by the pipeline of the 3rd magnetic valve 206, if when the coolant quantity in controller judgement system is in the second preset threshold range, control the 3rd magnetic valve 206 to close.In addition, if when controller judges that the coolant quantity in refrigerant circulation circuit is less than the second preset value, namely the coolant quantity in air-conditioning refrigeration system is very few, in other words, coolant quantity now in system maintains controller with current working load heating operation poor effect, then to control the second magnetic valve 202 open-minded for controller, and control the first magnetic valve 201 and the 3rd magnetic valve 206 cuts out, and the refrigerant stored in fluid reservoir 203 can be entered in the refrigerant circulation circuit of air-conditioner by the second magnetic valve 202.So in air conditioner heat-production runs, by controlling unlatching or the closedown of the first magnetic valve 201, second magnetic valve 202 and the 3rd magnetic valve 206, the adjustment to coolant quantity in air-conditioner coolant closed circuit can be realized, thus make air-conditioner reach good effect with suitable coolant quantity heating operation.
In sum, the air-conditioning system of the embodiment of the present invention, by increasing cold medium regulator within air-conditioning systems, controller, according to the detected value of detector, judges whether the coolant quantity that the current service load of air-conditioner is corresponding meets pre-conditioned, and when not meeting pre-conditioned, control corresponding magnetic valve in cold medium regulator to open or close, thus the coolant quantity in refrigerant circulation circuit is regulated, the reliability of air-conditioning system can be improved, improve the comfortableness that air-conditioning system uses.In addition, the fluid reservoir of cold medium regulator arranges charging valve, the refrigerant of the predetermined amount that prestores in fluid reservoir, can when the chain adapter design of air-conditioning system exceed standard pipe arrangement, without the need to adding quantitative coolant quantity, convenient, flexibly.
The refrigerant control method of a kind of air-conditioning system that embodiment according to a further aspect of the invention proposes is described with reference to the accompanying drawings, wherein, air-conditioning system is the air-conditioning system that above-described embodiment proposes, namely air-conditioning system comprises air-conditioner and cold medium regulator, wherein, air-conditioner comprises compressor, gas-liquid separator, cross valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement, compressor, gas-liquid separator, cross valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement form the refrigerant circulation circuit of air-conditioner, cold medium regulator comprises the first magnetic valve, second magnetic valve and fluid reservoir, the import of fluid reservoir is 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 cross valve by the second magnetic valve.
As shown in Figure 3, the refrigerant control method of the air-conditioning system of one embodiment of the invention comprises the following steps:
S1, detects running parameter when air-conditioner runs.
When air-conditioner runs, detect in real time the operation running parameter of air-conditioner, wherein, running parameter can comprise the parameter values such as the pressure at expulsion of compressor, delivery temperature and admission pressure.And according to the parameter detected judge coolant quantity in cooling cycle system number, concrete execution step S2.
Whether S2, meet pre-conditioned according to the coolant quantity that running parameter judges in refrigerant circulation circuit.
Particularly, such as, coolant quantity required when can set the different operating mode load running of air-conditioner pre-conditioned, when air-conditioner runs, judge whether the coolant quantity of current working load running meets pre-conditioned according to the relevant operational factor that step S1 detects, if meet pre-conditioned, then perform step S4, if not, then step S3 is performed.
S3, by controlling the first magnetic valve and the second magnetic valve to regulate the coolant quantity in refrigerant circulation circuit.
If when the coolant quantity judged in refrigerant circulation circuit according to running parameter does not meet pre-conditioned, then by control first magnetic valve and the second magnetic valve to regulate the coolant quantity in refrigerant circulation circuit, concrete adjustment process illustrates as follows.
S4, air-conditioner runs with current coolant quantity.
In addition, it should be noted that, also being comprised before regulating the coolant quantity in refrigerant circulation circuit by control first magnetic valve and the second magnetic valve: by fluid reservoir rushing the refrigerant that note valve is filled with predetermined amount in fluid reservoir.Particularly, if when connecting pipings exceeds system standard pipe arrangement when air-conditioner is installed, need to add the coolant quantity exceeding pipe range, inconvenience is installed, inadequate hommization.Preferably, in some embodiments of the invention, cold medium regulator can comprise charging valve, in fluid reservoir, the refrigerant of predetermined amount is filled with by charging valve, thus long in the tube connector design of air-conditioning system, when exceeding standard pipe arrangement, the refrigerant prestored in fluid reservoir is arranged in system cooling system, without the need to adding quantitative coolant quantity because of pipeline overlength, convenient, flexibly.Further, also can coolant quantity in air conditioner refrigerating closed circuit very few time, by the second magnetic valve, the refrigerant prestored in fluid reservoir is arranged in cooling cycle system.
Process refrigerant in the refrigeration cycle of air-conditioner regulated by cold medium regulator will be described in detail below.
In some embodiments of the invention, when air-conditioner is in cooling operation mode, wherein, if when the coolant quantity in refrigerant circulation circuit is more than or equal to the first preset value, control the first magnetic valve open-minded, and control the second closed electromagnetic valve, so that the refrigerant in refrigerant circulation circuit is entered described fluid reservoir; If when the coolant quantity in refrigerant circulation circuit is less than described first preset value, control the second magnetic valve open-minded, and control the first closed electromagnetic valve, so that the refrigerant in fluid reservoir is entered refrigerant circulation circuit, wherein, the first preset value can be understood as and can meet air-conditioner with more excellent coolant quantity required during current service load refrigerating operaton.Particularly, when air-conditioner refrigerating operaton, the operational factor of real-time detection air-conditioner, by to should the coolant quantity of operational factor and the first predetermined threshold value compare, if when the coolant quantity in judgement refrigerant circulation circuit is more than or equal to the first preset value, namely the coolant quantity in air conditioner coolant closed circuit is too much, control the first magnetic valve open-minded, and control the second closed electromagnetic valve, then by the refrigerant of the high pressure low temperature of outdoor heat exchanger, fluid reservoir is entered by the pipeline of the first magnetic valve, if when the coolant quantity in judgement system is in the first preset threshold range, control the first closed electromagnetic valve.In addition, if when the coolant quantity in judgement refrigerant circulation circuit is less than the first preset value, namely the coolant quantity in air-conditioning refrigeration system is very few, in other words, it is not good with current working load refrigeration operational effect that coolant quantity now in system maintains controller, then control the second magnetic valve open-minded, and control the first closed electromagnetic valve, the refrigerant stored in fluid reservoir can be entered in the refrigerating circuit of air-conditioner by the second magnetic valve.So in air-conditioner refrigerating operaton, by controlling the switch of the first magnetic valve and the second magnetic valve, the adjustment to coolant quantity in air-conditioner coolant closed circuit can be realized, thus make air-conditioner reach good effect with suitable coolant quantity refrigerating operaton.
In addition, in some embodiments of the invention, if air-conditioner can carry out heating operation, cold medium regulator also comprises the 3rd magnetic valve, one end of 3rd magnetic valve and the inlet communication of fluid reservoir, the other end of the 3rd magnetic valve is connected in the pipeline between throttling arrangement and indoor heat exchanger, wherein, when air-conditioner is in heating operation mode, if when the coolant quantity in refrigerant circulation circuit is more than or equal to the second preset value, control the 3rd magnetic valve open-minded, and control the first magnetic valve and the second closed electromagnetic valve, so that the refrigerant in refrigerant circulation circuit is entered fluid reservoir, if when the coolant quantity in refrigerant circulation circuit is less than the second preset value, control the second magnetic valve open-minded, and control the first magnetic valve and the 3rd closed electromagnetic valve, so that the refrigerant in fluid reservoir is entered refrigerant circulation circuit.Wherein, the second preset value can be understood as and can meet air-conditioner with more excellent coolant quantity required during current service load heating operation.Particularly, when air conditioner heat-production runs, the operational factor of real-time detection air-conditioner, by to should the coolant quantity of operational factor and the second predetermined threshold value compare, if when the coolant quantity in judgement refrigerant circulation circuit is more than or equal to the second preset value, namely the coolant quantity in air conditioner coolant closed circuit is too much, control the 3rd magnetic valve open-minded, and control the first magnetic valve and the second closed electromagnetic valve, then by the refrigerant of the high pressure low temperature of indoor heat exchanger, fluid reservoir is entered by the pipeline of the 3rd magnetic valve, if when the coolant quantity in judgement system is in the second preset threshold range, control the 3rd closed electromagnetic valve.In addition, if when the coolant quantity in judgement refrigerant circulation circuit is less than the second preset value, namely the coolant quantity in air conditioner coolant closed circuit is very few, in other words, coolant quantity now in system maintains controller with current working load heating operation poor effect, then control the second magnetic valve open-minded, and control the first magnetic valve and the 3rd closed electromagnetic valve, the refrigerant stored in fluid reservoir can be entered in the refrigerant circulation circuit of air-conditioner by the second magnetic valve.So in air conditioner heat-production runs, by controlling unlatching or the closedown of the first magnetic valve, the second magnetic valve and the 3rd magnetic valve, the adjustment to coolant quantity in air-conditioner coolant closed circuit can be realized, thus make air-conditioner reach good effect with suitable coolant quantity heating operation.
In sum, the refrigerant control method of the air-conditioning system of the embodiment of the present invention, according to detection air-conditioner operational factor, judge whether the coolant quantity that the current service load of air-conditioner is corresponding meets pre-conditioned, and when not meeting pre-conditioned, controlling corresponding magnetic valve in cold medium regulator and opening or close, and then the coolant quantity in refrigerant circulation circuit is regulated, thus the reliability of air-conditioning system can be improved, improve the comfort of air-conditioning system.In addition, the refrigerant of the predetermined amount that prestored in fluid reservoir by the charging valve on the fluid reservoir of cold medium regulator, can air-conditioning system tube connector design exceed standard pipe arrangement time, without the need to add quantitative coolant quantity, convenient, flexibly.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random-access memory (ram), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (10)
1. an air-conditioning system, is characterized in that, comprising:
Air-conditioner, described air-conditioner comprises compressor, gas-liquid separator, cross valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement, and described compressor, gas-liquid separator, cross valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement form the refrigerant circulation circuit of described air-conditioner;
Detector, for detecting running parameter when described air-conditioner runs;
Cold medium regulator, described cold medium regulator comprises:
First magnetic valve and the second magnetic valve;
Fluid reservoir, the import of described fluid reservoir is connected in the pipeline between described outdoor heat exchanger and described throttling arrangement by described first magnetic valve, and the outlet of described fluid reservoir is connected in the pipeline between described gas-liquid separator and described cross valve by described second magnetic valve;
Controller, described controller is connected with the second magnetic valve respectively with described detector, described first magnetic valve, the running parameter of the air-conditioner that described controller detects according to described detector judges whether the coolant quantity in described refrigerant circulation circuit meets pre-conditioned, and when not meeting pre-conditioned by controlling described first magnetic valve and the second magnetic valve to regulate the coolant quantity in described refrigerant circulation circuit.
2. air-conditioning system as claimed in claim 1, is characterized in that, when described air-conditioner is in cooling operation mode, wherein,
If when the coolant quantity in described refrigerant circulation circuit is more than or equal to the first preset value, it is open-minded that described controller controls described first magnetic valve, and control described second closed electromagnetic valve, so that the refrigerant in described refrigerant circulation circuit is entered described fluid reservoir;
If when the coolant quantity in described refrigerant circulation circuit is less than described first preset value, it is open-minded that described controller controls described second magnetic valve, and control described first closed electromagnetic valve, so that the refrigerant in described fluid reservoir is entered described refrigerant circulation circuit.
3. air-conditioning system as claimed in claim 1 or 2, it is characterized in that, described cold medium regulator also comprises the 3rd magnetic valve, described one end of 3rd magnetic valve and the inlet communication of described fluid reservoir, the other end of described 3rd magnetic valve is connected in the pipeline between described throttling arrangement and described indoor heat exchanger, and the control end of described 3rd magnetic valve is connected with described controller, wherein, when described air-conditioner is in heating operation mode
If when the coolant quantity in described refrigerant circulation circuit is more than or equal to the second preset value, it is open-minded that described controller controls described 3rd magnetic valve, and control described first magnetic valve and described second closed electromagnetic valve, so that the refrigerant in described refrigerant circulation circuit is entered described fluid reservoir;
If when the coolant quantity in described refrigerant circulation circuit is less than described second preset value, it is open-minded that described controller controls described second magnetic valve, and control described first magnetic valve and described 3rd closed electromagnetic valve, so that the refrigerant in described fluid reservoir is entered described refrigerant circulation circuit.
4. air-conditioning system as claimed in claim 1, it is characterized in that, described cold medium regulator also comprises:
Charging valve, described charging valve is communicated with described fluid reservoir, is filled with the refrigerant of predetermined amount by described charging valve in described fluid reservoir.
5. air-conditioning system as claimed in claim 1, it is characterized in that, described cold medium regulator also comprises:
Throttle mechanism, described throttle mechanism is between described second magnetic valve and described gas-liquid separator.
6. the refrigerant control method of air-conditioning system as claimed in claim 1, is characterized in that, comprise the following steps:
Detect running parameter when described air-conditioner runs;
Whether meet pre-conditioned according to the coolant quantity that described running parameter judges in described refrigerant circulation circuit;
If not, by controlling described first magnetic valve and the second magnetic valve to regulate the coolant quantity in described refrigerant circulation circuit.
7. the refrigerant control method of air-conditioning system as claimed in claim 6, is characterized in that, when described air-conditioner is in cooling operation mode, wherein,
If when the coolant quantity in described refrigerant circulation circuit is more than or equal to the first preset value, control described first magnetic valve open-minded, and control described second closed electromagnetic valve, so that the refrigerant in described refrigerant circulation circuit is entered described fluid reservoir;
If when the coolant quantity in described refrigerant circulation circuit is less than described first preset value, control described second magnetic valve open-minded, and control described first closed electromagnetic valve, so that the refrigerant in described fluid reservoir is entered described refrigerant circulation circuit.
8. the refrigerant control method of air-conditioning system as claimed in claims 6 or 7, it is characterized in that, described cold medium regulator also comprises the 3rd magnetic valve, described one end of 3rd magnetic valve and the inlet communication of described fluid reservoir, the other end of described 3rd magnetic valve is connected in the pipeline between described throttling arrangement and described indoor heat exchanger, wherein, when described air-conditioner is in heating operation mode
If when the coolant quantity in described refrigerant circulation circuit is more than or equal to the second preset value, control described 3rd magnetic valve open-minded, and control described first magnetic valve and described second closed electromagnetic valve, so that the refrigerant in described refrigerant circulation circuit is entered described fluid reservoir;
If when the coolant quantity in described refrigerant circulation circuit is less than described second preset value, control described second magnetic valve open-minded, and control described first magnetic valve and described 3rd closed electromagnetic valve, so that the refrigerant in described fluid reservoir is entered described refrigerant circulation circuit.
9. the refrigerant control method of air-conditioning system as claimed in claim 6, is characterized in that, described by controlling described first magnetic valve and the second magnetic valve with before regulating the coolant quantity in described refrigerant circulation circuit, also comprises:
The refrigerant that valve is filled with predetermined amount in described fluid reservoir is noted by rushing on described fluid reservoir.
10. the refrigerant control method of air-conditioning system as claimed in claim 6, is characterized in that, described running parameter comprises the pressure at expulsion of described compressor, delivery temperature and admission pressure.
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