CN104913557A - Power control method, power control system, gas-liquid separator and air conditioner - Google Patents
Power control method, power control system, gas-liquid separator and air conditioner Download PDFInfo
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- CN104913557A CN104913557A CN201510290098.3A CN201510290098A CN104913557A CN 104913557 A CN104913557 A CN 104913557A CN 201510290098 A CN201510290098 A CN 201510290098A CN 104913557 A CN104913557 A CN 104913557A
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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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- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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Abstract
The invention provides a power control method, a power control system, a gas-liquid separator and an air conditioner. The power control method comprises the following steps of judging whether the working condition temperature of the gas-liquid separator is greater than zero DEG C; and determining the power value of an electric heating pipe according to the working condition temperature judgment result. The power control method comprises the following specific steps: if judging that the working condition temperature is not greater than zero DEG C, determining a preset working condition temperature, which corresponds to the working condition temperature, in a preset power control table, so as to determine a reference power value corresponding to the working condition temperature, wherein the preset power control table comprises one-to-one correspondence relation between the preset working condition temperatures and reference power values; determining a power value according to the reference power value and a preset power coefficient, and driving the electric heating pipe to operate at a power value. According to the technical scheme, intelligent optimization control over the power of the electric heating pipe of the gas-liquid separator is realized, and the reliability of the electric heating pipe and the gas-liquid separator can be enhanced.
Description
Technical field
The present invention relates to air-conditioner technical field, in particular to a kind of Poewr control method, a kind of power control system, a kind of gas-liquid separator and a kind of air-conditioner.
Background technology
In the related, gas-liquid separator is extensive use in air-conditioning, before it is arranged on the air inlet of compressor, object causes liquid hammer to prevent compressor from sucking too much liquid, and refrigerant enters into gas-liquid separator and carries out gas-liquid separation after evaporation and heat-exchange.
But, at low ambient temperatures during operating air conditioner, because outdoor environment temperature is too low, when causing heating operation, refrigerant evaporation is incomplete, a large amount of gas liquid mixture flows in gas-liquid separator, at this moment part refrigerant evaporation is incomplete, therefore temperature is too low, complete heat exchange is not had to be evaporated to overheated gas, this part gas liquid mixture do not evaporated completely has influence on the delivery temperature after compressor compresses simultaneously, the gases at high pressure temperature causing compressor to be discharged is on the low side, meeting that compressor exhaust temperature is on the low side causes the heating effect of air-conditioning to decline, the hot blast temperature of air-conditioning blowout is also thereupon on the low side, cooler to the sendible temperature of people in the winter of cold, make the experience effect of user poor.
In addition, set up electric heating tube in gas-liquid separator after, electric heating tube directly contacts with refrigerant, causes the local temperature of refrigerant higher, and then easily causes lubricating oil carbonization, even causes the dangerous generations such as gas-liquid mixture blast.
Therefore, the control program of gas-liquid separator and the gas-liquid separator of high energy efficiency that how to design a kind of low-power consumption become technical problem urgently to be resolved hurrily.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, one object of the present invention is the Poewr control method of the gas-liquid separator proposing a kind of new low-power consumption.
Another object of the present invention is to propose a kind of power control system.
Another object of the present invention is to propose a kind of gas-liquid separator.
Another object of the present invention is to propose a kind of air-conditioner.
For achieving the above object, embodiment according to a first aspect of the invention, proposes a kind of Poewr control method, comprising: judge whether the working temperature of described gas-liquid separator is greater than zero; The performance number of described electric heating tube is determined according to the result of determination of described working temperature, comprise following concrete steps: when judging that described working temperature is not more than zero, determine the default working temperature in the predetermined power control table that described working temperature is corresponding, wherein, described predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, to determine the described reference power value that described working temperature is corresponding; Determine described performance number according to described reference power value and predetermined power coefficient, and drive described electric heating tube to carry out work with described performance number.
Poewr control method according to an embodiment of the invention, by working temperature and the predetermined power control table determination performance number of gas-liquid separator, ensure that air-conditioner heating capacity under cryogenic, meanwhile, has saved power consumption.
Wherein, predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, and wherein, reference power value is as the reference data of the performance number finally determined.
Be worth it is emphasized that above-mentioned Poewr control method to be applied to the electric heating tube of gas-liquid separator, improve the gas-liquid separation efficiency of gas-liquid separator, meanwhile, reduce the power consumption of gas-liquid separator.
In addition, Poewr control method according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, before judging whether described working temperature is greater than zero, comprise: create predetermined power control table, wherein, described predetermined power control table comprises the first characteristic curve and the second characteristic curve, default working temperature in default working temperature in described first characteristic curve and described second characteristic curve is all less than or equal to zero, and described first characteristic default working temperature is greater than the default working temperature in described second characteristic curve.
Poewr control method according to an embodiment of the invention, by creating predetermined power control table, provide the reference data of performance number, wherein, predetermined power control table can be theory calculate form, or the corresponding relation of the default working temperature that obtains according to application verification Test Summary of designer and reference power value.
Based on the object optimizing gas-liquid separator, when being subzero with reference to working temperature, with reference to the first characteristic curve in predetermined power control table and the second characteristic curve.
According to one embodiment of present invention, the performance number of described electric heating tube is determined according to the result of determination of described working temperature, also comprise following concrete steps: be not more than zero at the described working temperature of judgement, and described working temperature is when being in the threshold range of described first characteristic default working temperature, judge whether the duration that described working temperature is in the threshold range of described first characteristic default working temperature is more than or equal to preset durations; When the duration that the described working temperature of judgement is in the threshold range of described first characteristic default working temperature is more than or equal to described preset durations, determine that described predetermined power coefficient is the first coefficient; Calculate the product value of reference power value corresponding to described working temperature, the first characteristic default working temperature that described working temperature is corresponding and described first coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
Poewr control method according to an embodiment of the invention, by belonging to the first characteristic curve or the second characteristic curve according to working temperature (when being less than zero), to determine performance number, improves the reliability of gas-liquid separator.
Particularly, the default working temperature of fisrt feature curve is greater than the default working temperature of second feature curve, when working temperature belongs to fisrt feature curve, now, the operating pressure of gas-liquid separator is lower, now, according to reference power value and the first coefficient determination gas-liquid separator performance number, wherein, first coefficient is greater than 0 and is less than 1, and when working temperature belongs to second feature curve, the operating pressure of gas-liquid separator is larger, now, electric heating tube is driven with the performance number being not less than reference power value, thus while ensureing the heating performance under electric heating tube low temperature, save power consumption.
According to one embodiment of present invention, the performance number of described electric heating tube is determined according to the result of determination of described working temperature, also comprise following concrete steps: be not more than zero at the described working temperature of judgement, and described working temperature is when being in the threshold range of described second characteristic default working temperature, determine that described predetermined power coefficient is the second coefficient; Calculate the product value of reference power value corresponding to described working temperature, the second characteristic default working temperature that described working temperature is corresponding and described second coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
Poewr control method according to an embodiment of the invention, during by belonging to second feature curve at working temperature, with the reference power value of correspondence and the second coefficient determination performance number, to drive electric heating tube, improve electric heating tube heating capacity at low temperatures, wherein, the second coefficient is more than or equal to 1.
Be worth it is emphasized that consider the reliability of power consumption and electric heating tube, when the default working temperature in the second characteristic curve is lower than appointment numerical value (as-15 DEG C), reference power value is fixed value.
According to one embodiment of present invention, the performance number of described electric heating tube is determined according to the result of determination of described working temperature, also comprise following concrete steps: when judging that described working temperature is greater than zero, determining that described performance number is zero, not working to control described electric heating tube.
Poewr control method according to an embodiment of the invention, by when judging that working temperature is greater than zero, controlling electric heating tube and not working, having saved the power consumption of electric heating tube.
Embodiment according to a second aspect of the present invention, also proposed a kind of power control system, comprising: judging unit, for judging whether the working temperature of described gas-liquid separator is greater than zero; Determining unit, for determining the performance number of described electric heating tube according to the result of determination of described working temperature; Described determining unit also for, when judging that described working temperature is not more than zero, determine the default working temperature in the predetermined power control table that described working temperature is corresponding, wherein, described predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, to determine the described reference power value that described working temperature is corresponding; Driver element, for determining described performance number according to described reference power value and predetermined power coefficient, and drives described electric heating tube to carry out work with described performance number.
Power control system according to an embodiment of the invention, by working temperature and the predetermined power control table determination performance number of gas-liquid separator, ensure that air-conditioner heating capacity under cryogenic, meanwhile, has saved power consumption.
Wherein, predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, and wherein, reference power value is as the reference data of the performance number finally determined.
Be worth it is emphasized that above-mentioned Poewr control method to be applied to the electric heating tube of gas-liquid separator, improve the gas-liquid separation efficiency of gas-liquid separator, meanwhile, reduce the power consumption of gas-liquid separator.
In addition, power control system according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, also comprise: creating unit, for creating predetermined power control table, wherein, described predetermined power control table comprises the first characteristic curve and the second characteristic curve, default working temperature in default working temperature in described first characteristic curve and described second characteristic curve is all less than or equal to zero, and described first characteristic default working temperature is greater than the default working temperature in described second characteristic curve.
Power control system according to an embodiment of the invention, by creating predetermined power control table, provide the reference data of performance number, wherein, predetermined power control table can be theory calculate form, or the corresponding relation of the default working temperature that obtains according to application verification Test Summary of designer and reference power value.
Based on the object optimizing gas-liquid separator, when being subzero with reference to working temperature, with reference to the first characteristic curve in predetermined power control table and the second characteristic curve.
According to one embodiment of present invention, described judging unit also for, zero is less than or equal at the described working temperature of judgement, and described working temperature is when being in the threshold range of described first characteristic default working temperature, judge whether the duration that described working temperature is in the threshold range of described first characteristic default working temperature is more than or equal to preset durations; Described determining unit also for, when the duration judging that described working temperature is in the threshold range of described first characteristic default working temperature is more than or equal to described preset durations, determine that described predetermined power coefficient is the first coefficient; Described power control system also comprises: computing unit, for calculating the product value of reference power value corresponding to described working temperature, the first characteristic default working temperature that described working temperature is corresponding and described first coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
Power control system according to an embodiment of the invention, by belonging to the first characteristic curve or the second characteristic curve according to working temperature (when being less than zero), to determine performance number, improves the reliability of gas-liquid separator.
Particularly, the default working temperature of fisrt feature curve is greater than the default working temperature of second feature curve, when working temperature belongs to fisrt feature curve, now, the operating pressure of gas-liquid separator is lower, now, according to reference power value and the first coefficient determination gas-liquid separator performance number, wherein, first coefficient is greater than 0 and is less than 1, and when working temperature belongs to second feature curve, the operating pressure of gas-liquid separator is larger, now, electric heating tube is driven with the performance number being not less than reference power value, thus while ensureing the heating performance under electric heating tube low temperature, save power consumption.
According to one embodiment of present invention, described determining unit also for, be less than or equal to zero at the described working temperature of judgement, and when described working temperature is in the threshold range of described second characteristic default working temperature, determine that described predetermined power coefficient is the second coefficient; Described computing unit also for, calculate the product value of reference power value corresponding to described working temperature, the second characteristic default working temperature that described working temperature is corresponding and described second coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
Power control system according to an embodiment of the invention, during by belonging to second feature curve at working temperature, with the reference power value of correspondence and the second coefficient determination performance number, to drive electric heating tube, improve electric heating tube heating capacity at low temperatures, wherein, the second coefficient is more than or equal to 1.
Be worth it is emphasized that consider the reliability of power consumption and electric heating tube, when the default working temperature in the second characteristic curve is lower than appointment numerical value (as-15 DEG C), reference power value is fixed value.
According to one embodiment of present invention, described determining unit also for, judge described working temperature be greater than zero time, determine that described performance number is zero, do not work to control described electric heating tube.
Power control system according to an embodiment of the invention, by when judging that working temperature is greater than zero, controlling electric heating tube and not working, having saved the power consumption of electric heating tube.
Embodiment according to a third aspect of the present invention, also proposed a kind of gas-liquid separator, comprising: temperature sensor, and described temperature sensor is located at the inside of described tank body, and the described working temperature for the inside to described tank body is monitored; Controller, is connected to described temperature sensor and electric heating assembly, and for according to described internal condition temperature determination driving instruction, to drive described electric heating assembly to carry out work, wherein, described driving instruction comprises performance number; Electric heating assembly, is arranged at described gas held region discretely with described escape pipe, and for carrying out temperature-compensating to the gas-liquid mixture in described gas held region, described electric heating assembly comprises: the power control system as described in above-mentioned any one technical scheme; Electrical heating tank body; Electric heating tube, be arranged at the inside of described electrical heating tank body, described electric heating tube is connected to described controller, for carrying out work according to described driving instruction, is filled with insulating heat-conduction material between described electrical heating tank body and described electrical heating tank body.
Gas-liquid separator according to an embodiment of the invention, by set temperature sensor, controller and electric heating assembly in gas-liquid separator, achieves following multiple technique effect:
(1) electric heating assembly compensates the indirect temperature of refrigerant, improves the separative efficiency of gas-liquid separator;
(2) local temperature avoiding gas-liquid mixture is too high, and then reduces lubrication wet goods mixture carbonization fouling, reduces the possibility that gas-liquid mixture is blasted;
(3) effectively improve the heating capacity of the compressor under low temperature, extend the defrosting cycle under cryogenic conditions, and then improve the reliability of compressor;
(4) avoid electric heating tube to weld with the direct of air inlet, simplify production technology, reduce manufacturing cost;
(5) power of working temperature to electric heating tube obtained with temperature sensor sets, and reduces the energy consumption of electric heating tube, meanwhile, ensure that its gas-liquid separation efficiency at low temperatures.
In addition, gas-liquid separator according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, described air inlet pipe is L shape pipe, and described L shape pipe comprises the horizontal tube and VERTICAL TUBE that are connected, and described first port is located in described VERTICAL TUBE, and described second port is located on described horizontal tube.
Gas-liquid separator according to an embodiment of the invention, arranged by the end face vertical at the second port place by air inlet pipe, like this, make the gas liquid mixture (gas liquid mixture refers to the mixture be made up of gaseous refrigerant and liquid droplet cold-producing medium) entered in tank body by air inlet pipe can enter into tank interior in the horizontal direction, slow down gas liquid mixture to tank base retain the direct injection of liquid, gas liquid mixture is made to enter into tank interior from the angle parallel with liquid level in tank body, and effectively reduce the movement velocity of gas liquid mixture, make gas liquid mixture when with liquid comes into contact in tank body, movement velocity obviously reduces, thus effectively reduce the disturbance that gas liquid mixture causes tank base liquid, thus can not cause tank interior largely liquid level increase, thus the dischargeable capacity of tank body is made can not to reduce because of entering of gas liquid mixture, the gas entering into tank interior due to level in addition can not cause the violent disturbance of tank interior, thus there will not be the phenomenon that the gas liquid mixture entered in tank body mixes again with liquid original in tank body, effectively ensure that the separating effect of gas-liquid separator, thus the liquid refrigerant making the escape pipe through gas-liquid separator enter in compressor reduces, effectively prevent the liquid hit phenomenon that compressor causes because sucking too much liquid, and the heating effect of air-conditioner under improving low temperature environment.
According to one embodiment of present invention, the tube wall of described horizontal tube offers through hole.
According to one embodiment of present invention, the tube wall of described horizontal tube offers multiple described through hole, and the axis of multiple described through hole is equal and plane-parallel.
According to one embodiment of present invention, multiple described through hole is opened on the relative tube wall of described horizontal tube symmetrically.
According to one embodiment of present invention, described air inlet pipe is the straight type pipe parallel with plumb line.
According to one embodiment of present invention, described escape pipe is U-shaped pipe, and the bottom of described U-shaped pipe is positioned at described liquid containing region, and the bottom of described U-shaped pipe is provided with at least one return filter.
Gas-liquid separator according to an embodiment of the invention, by arranging return filter in the bottom of U-shaped pipe, can filter out the impurity in gas liquid mixture, prevents the impurity in gas liquid mixture from entering in compressor, affects the normal work of compressor.
According to one embodiment of present invention, the arranged outside of described electrical heating tank body has at least one radiating fin.
Gas-liquid separator according to an embodiment of the invention, by arranging at least one radiating fin at the peripheral hardware of electrical heating tank body, improve the homogeneity that electric heating assembly transfers heat to refrigerant process, the local temperature avoiding refrigerant is further too high, thus improves the reliability of gas-liquid separator further.
Embodiment according to a fourth aspect of the present invention, also proposed a kind of air-conditioner, comprises the gas-liquid separator as described in above-mentioned any one technical scheme.
Additional aspect of the present invention 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
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the schematic flow diagram of Poewr control method according to an embodiment of the invention;
Fig. 2 shows the schematic block diagram of power control system according to an embodiment of the invention;
Fig. 3 shows the schematic diagram of gas-liquid separator according to an embodiment of the invention;
Fig. 4 shows the schematic diagram of air inlet pipe according to an embodiment of the invention;
Fig. 5 shows the schematic block diagram of air-conditioner according to an embodiment of the invention;
Fig. 6 shows the hardware schematic diagram of air-conditioner system according to an embodiment of the invention;
Fig. 7 shows the schematic diagram of predetermined power control table according to an embodiment of the invention.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the schematic flow diagram of Poewr control method according to an embodiment of the invention.
As shown in Figure 1, Poewr control method according to an embodiment of the invention, comprising: step 102, judges whether the working temperature of described gas-liquid separator is greater than zero; Step 104, the performance number of described electric heating tube is determined according to the result of determination of described working temperature, comprise following concrete steps: step 1042, when judging that described working temperature is not more than zero, determine the default working temperature in the predetermined power control table that described working temperature is corresponding, wherein, described predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, to determine the described reference power value that described working temperature is corresponding; Step 1044, determines described performance number according to described reference power value and predetermined power coefficient, and drives described electric heating tube to carry out work with described performance number.
Poewr control method according to an embodiment of the invention, by working temperature and the predetermined power control table determination performance number of gas-liquid separator, ensure that air-conditioner heating capacity under cryogenic, meanwhile, has saved power consumption.
Wherein, predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, and wherein, reference power value is as the reference data of the performance number finally determined.
Be worth it is emphasized that above-mentioned Poewr control method to be applied to the electric heating tube of gas-liquid separator, improve the gas-liquid separation efficiency of gas-liquid separator, meanwhile, reduce the power consumption of gas-liquid separator.
In addition, Poewr control method according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, before judging whether described working temperature is greater than zero, comprise: create predetermined power control table, wherein, described predetermined power control table comprises the first characteristic curve and the second characteristic curve, default working temperature in default working temperature in described first characteristic curve and described second characteristic curve is all less than or equal to zero, and described first characteristic default working temperature is greater than the default working temperature in described second characteristic curve.
Poewr control method according to an embodiment of the invention, by creating predetermined power control table, provide the reference data of performance number, wherein, predetermined power control table can be theory calculate form, or the corresponding relation of the default working temperature that obtains according to application verification Test Summary of designer and reference power value.
As shown in Figure 7, based on the object optimizing gas-liquid separator, when being subzero with reference to working temperature, with reference to the first characteristic curve in predetermined power control table and the second characteristic curve.
According to one embodiment of present invention, the performance number of described electric heating tube is determined according to the result of determination of described working temperature, also comprise following concrete steps: be not more than zero at the described working temperature of judgement, and described working temperature is when being in the threshold range of described first characteristic default working temperature, judge whether the duration that described working temperature is in the threshold range of described first characteristic default working temperature is more than or equal to preset durations; When the duration that the described working temperature of judgement is in the threshold range of described first characteristic default working temperature is more than or equal to described preset durations, determine that described predetermined power coefficient is the first coefficient; Calculate the product value of reference power value corresponding to described working temperature, the first characteristic default working temperature that described working temperature is corresponding and described first coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
As shown in Figure 7, Poewr control method according to an embodiment of the invention, by belonging to the first characteristic curve or the second characteristic curve according to working temperature (when being less than zero), to determine performance number, improves the reliability of gas-liquid separator.
Particularly, the default working temperature of fisrt feature curve is greater than the default working temperature of second feature curve, when working temperature belongs to fisrt feature curve, now, the operating pressure of gas-liquid separator is lower, now, according to reference power value and the first coefficient determination gas-liquid separator performance number, wherein, first coefficient is greater than 0 and is less than 1, and when working temperature belongs to second feature curve, the operating pressure of gas-liquid separator is larger, now, electric heating tube is driven with the performance number being not less than reference power value, thus while ensureing the heating performance under electric heating tube low temperature, save power consumption.
According to one embodiment of present invention, the performance number of described electric heating tube is determined according to the result of determination of described working temperature, also comprise following concrete steps: be not more than zero at the described working temperature of judgement, and described working temperature is when being in the threshold range of described second characteristic default working temperature, determine that described predetermined power coefficient is the second coefficient; Calculate the product value of reference power value corresponding to described working temperature, the second characteristic default working temperature that described working temperature is corresponding and described second coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
Poewr control method according to an embodiment of the invention, during by belonging to second feature curve at working temperature, with the reference power value of correspondence and the second coefficient determination performance number, to drive electric heating tube, improve electric heating tube heating capacity at low temperatures, wherein, the second coefficient is more than or equal to 1.
Be worth it is emphasized that consider the reliability of power consumption and electric heating tube, when the default working temperature in the second characteristic curve is lower than appointment numerical value (as-15 DEG C), reference power value is fixed value.
According to one embodiment of present invention, the performance number of described electric heating tube is determined according to the result of determination of described working temperature, also comprise following concrete steps: when judging that described working temperature is greater than zero, determining that described performance number is zero, not working to control described electric heating tube.
Poewr control method according to an embodiment of the invention, by when judging that working temperature is greater than zero, controlling electric heating tube and not working, having saved the power consumption of electric heating tube.
Fig. 2 shows the schematic block diagram of power control system according to an embodiment of the invention.
As shown in Figure 2, power control system 200 according to an embodiment of the invention, comprising: judge single 202, for judging whether the working temperature of described gas-liquid separator is greater than zero; Determining unit 204, for determining the performance number of described electric heating tube according to the result of determination of described working temperature; Described determining unit 204 also for, when judging that described working temperature is not more than zero, determine the default working temperature in the predetermined power control table that described working temperature is corresponding, wherein, described predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, to determine the described reference power value that described working temperature is corresponding; Driver element 206, for determining described performance number according to described reference power value and predetermined power coefficient, and drives described electric heating tube to carry out work with described performance number.
Power control system according to an embodiment of the invention, by working temperature and the predetermined power control table determination performance number of gas-liquid separator, ensure that air-conditioner heating capacity under cryogenic, meanwhile, has saved power consumption.
Wherein, predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, and wherein, reference power value is as the reference data of the performance number finally determined.
Be worth it is emphasized that above-mentioned Poewr control method to be applied to the electric heating tube of gas-liquid separator, improve the gas-liquid separation efficiency of gas-liquid separator, meanwhile, reduce the power consumption of gas-liquid separator.
In addition, power control system according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, also comprise: creating unit 208, for creating predetermined power control table, wherein, described predetermined power control table comprises the first characteristic curve and the second characteristic curve, default working temperature in default working temperature in described first characteristic curve and described second characteristic curve is all less than or equal to zero, and described first characteristic default working temperature is greater than the default working temperature in described second characteristic curve.
Power control system according to an embodiment of the invention, by creating predetermined power control table, provide the reference data of performance number, wherein, predetermined power control table can be theory calculate form, or the corresponding relation of the default working temperature that obtains according to application verification Test Summary of designer and reference power value.
As shown in Figure 7, based on the object optimizing gas-liquid separator, when being subzero with reference to working temperature, with reference to the first characteristic curve in predetermined power control table and the second characteristic curve.
According to one embodiment of present invention, described judging unit 202 also for, zero is less than or equal at the described working temperature of judgement, and described working temperature is when being in the threshold range of described first characteristic default working temperature, judge whether the duration that described working temperature is in the threshold range of described first characteristic default working temperature is more than or equal to preset durations; Described determining unit 204 also for, when the duration judging that described working temperature is in the threshold range of described first characteristic default working temperature is more than or equal to described preset durations, determine that described predetermined power coefficient is the first coefficient; Described power control system 200 also comprises: computing unit 210, for calculating the product value of reference power value corresponding to described working temperature, the first characteristic default working temperature that described working temperature is corresponding and described first coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
As shown in Figure 7, power control system according to an embodiment of the invention, by belonging to the first characteristic curve or the second characteristic curve according to working temperature (when being less than zero), to determine performance number, improves the reliability of gas-liquid separator.
Particularly, the default working temperature of fisrt feature curve is greater than the default working temperature of second feature curve, when working temperature belongs to fisrt feature curve, now, the operating pressure of gas-liquid separator is lower, now, according to reference power value and the first coefficient determination gas-liquid separator performance number, wherein, first coefficient is greater than 0 and is less than 1, and when working temperature belongs to second feature curve, the operating pressure of gas-liquid separator is larger, now, electric heating tube is driven with the performance number being not less than reference power value, thus while ensureing the heating performance under electric heating tube low temperature, save power consumption.
According to one embodiment of present invention, described determining unit 204 also for, be less than or equal to zero at the described working temperature of judgement, and when described working temperature is in the threshold range of described second characteristic default working temperature, determine that described predetermined power coefficient is the second coefficient; Described computing unit 210 also for, calculate the product value of reference power value corresponding to described working temperature, the second characteristic default working temperature that described working temperature is corresponding and described second coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
Power control system according to an embodiment of the invention, during by belonging to second feature curve at working temperature, with the reference power value of correspondence and the second coefficient determination performance number, to drive electric heating tube, improve electric heating tube heating capacity at low temperatures, wherein, the second coefficient is more than or equal to 1.
Be worth it is emphasized that consider the reliability of power consumption and electric heating tube, when the default working temperature in the second characteristic curve is lower than appointment numerical value (as-15 DEG C), reference power value is fixed value.
According to one embodiment of present invention, described determining unit 204 also for, judge described working temperature be greater than zero time, determine that described performance number is zero, do not work to control described electric heating tube.
Power control system according to an embodiment of the invention, by when judging that working temperature is greater than zero, controlling electric heating tube and not working, having saved the power consumption of electric heating tube.
Below in conjunction with Fig. 3 and Fig. 4, gas-liquid separator is according to an embodiment of the invention specifically described.
As shown in Figure 3 and Figure 4, gas-liquid separator S1 according to an embodiment of the invention, comprise: temperature sensor S1054, described temperature sensor S1054 is located at the inside of described tank body S101, and the described working temperature for the inside to described tank body S101 is monitored; Controller, is connected to described temperature sensor S1054 and electric heating assembly S105, and for according to described internal condition temperature determination driving instruction, to drive described electric heating assembly S105 to carry out work, wherein, described driving instruction comprises performance number; Electric heating assembly S105, described gas held region sec1 is arranged at discretely with described escape pipe S103, for carrying out temperature-compensating to the gas-liquid mixture of described gas held region sec1, described electric heating assembly S105 comprises: the power control system 200 as described in above-mentioned any one technical scheme; Electrical heating tank body S1051; Electric heating tube S1052, be arranged at the inside of described electrical heating tank body S1051, described electric heating tube S1052 is connected to described controller, for carrying out work according to described driving instruction, is filled with insulating heat-conduction material S1053 between described electrical heating tank body S1051 and described electrical heating tank body S1051.
Gas-liquid separator S1 according to an embodiment of the invention, by set temperature sensor S1054, controller and electric heating assembly S105 in gas-liquid separator S1, achieves following multiple technique effect:
(1) electric heating assembly S105 compensates the indirect temperature of refrigerant, improves the separative efficiency of gas-liquid separator S1;
(2) local temperature avoiding gas-liquid mixture is too high, and then reduces lubrication wet goods mixture carbonization fouling, reduces the possibility that gas-liquid mixture is blasted;
(3) effectively improve the heating capacity of the compressor under low temperature, extend the defrosting cycle under cryogenic conditions, and then improve the reliability of compressor;
(4) avoid electric heating tube S1052 to weld with the direct of air inlet, simplify production technology, reduce manufacturing cost;
(5) power of working temperature to electric heating tube S1052 obtained with temperature sensor S1054 sets, and reduces the energy consumption of electric heating tube S1052, meanwhile, ensure that its gas-liquid separation efficiency at low temperatures.
In addition, gas-liquid separator S1 according to the above embodiment of the present invention, can also have following additional technical characteristic:
As shown in Figure 4, according to one embodiment of present invention, described air inlet pipe S102 is L shape pipe, and described L shape pipe comprises the horizontal tube and VERTICAL TUBE that are connected, described first port S102A is located in described VERTICAL TUBE, and described second port S102B is located on described horizontal tube.
Gas-liquid separator S1 according to an embodiment of the invention, arranged by the end face vertical at the second port S102B place by air inlet pipe S102, like this, make the gas liquid mixture (gas liquid mixture refers to the mixture be made up of gaseous refrigerant and liquid droplet cold-producing medium) entered in tank body S101 by air inlet pipe S102 can enter into tank body S101 in the horizontal direction inner, slow down gas liquid mixture to bottom tank body S101 retain the direct injection of liquid, gas liquid mixture is made to enter into tank body S101 from the angle parallel with liquid level in tank body S101 inner, and effectively reduce the movement velocity of gas liquid mixture, make gas liquid mixture when with liquid comes into contact in tank body S101, movement velocity obviously reduces, thus effectively reduce the disturbance that gas liquid mixture causes tank body S101 bottom liquid, thus can not cause tank body S101 inside largely liquid level increase, thus the dischargeable capacity of tank body S101 is made can not to reduce because of entering of gas liquid mixture, the gas entering into tank body S101 inside due to level in addition can not cause the violent disturbance of tank body S101 inside, thus there will not be the phenomenon that the gas liquid mixture entered in tank body S101 mixes again with original liquid in tank body S101, effectively ensure that the separating effect of gas-liquid separator S1, thus the liquid refrigerant entered in compressor through the escape pipe S103 of gas-liquid separator S1 is reduced, effectively prevent the liquid hit phenomenon that compressor causes because sucking too much liquid, and the heating effect of air-conditioner under improving low temperature environment.
According to one embodiment of present invention, the tube wall of described horizontal tube offers through hole S102C.
According to one embodiment of present invention, the tube wall of described horizontal tube offers multiple described through hole S102C, and the axis of multiple described through hole S102C is equal and plane-parallel.
According to one embodiment of present invention, multiple described through hole S102C is opened on the relative tube wall of described horizontal tube symmetrically.
As shown in Figure 3, according to one embodiment of present invention, described air inlet pipe S102 is the straight type pipe parallel with plumb line, and wherein, air inlet pipe S102 also comprises the first port S102A, the second port S102B, and multiple through hole S102C.
According to one embodiment of present invention, described escape pipe S103 is U-shaped pipe, and the bottom of described U-shaped pipe is positioned at described liquid containing region sec2, and the bottom of described U-shaped pipe is provided with at least one return filter S104.
Gas-liquid separator S1 according to an embodiment of the invention, by arranging return filter S104 in the bottom of U-shaped pipe, can filter out the impurity in gas liquid mixture, prevents the impurity in gas liquid mixture from entering in compressor, affects the normal work of compressor.
According to one embodiment of present invention, the arranged outside of described electrical heating tank body S1051 has at least one radiating fin S1055.
Gas-liquid separator S1 according to an embodiment of the invention, by arranging at least one radiating fin S1055 at the peripheral hardware of electrical heating tank body S1051, improve the homogeneity that electric heating assembly S105 transfers heat to refrigerant process, the local temperature avoiding refrigerant is further too high, thus improves the reliability of gas-liquid separator S1 further.
Fig. 5 shows the schematic block diagram of air-conditioner according to an embodiment of the invention.
As shown in Figure 5, air-conditioner according to an embodiment of the invention, comprises the gas-liquid separator S1 as described in above-mentioned any one technical scheme.
Composition graphs 6 and Fig. 7 are to air-conditioner system according to an embodiment of the invention, and the power control process of electric heating assembly is at low temperatures specifically described.
As indicated with 6, air-conditioner system 600 comprises according to an embodiment of the invention: gas-liquid separator S1, compressor 601, outdoor heat exchanger 602, outdoor fan 603, indoor heat exchanger 604, choke valve 605, indoor fan 606, and cross valve 607.
As shown in Figure 7, when air-conditioner system 600 works with heating mode, the temperature sensor measurement condition temperature in gas-liquid separator S1 is t, has following situation:
(1) when 0 DEG C of > t >=-10 DEG C, according to the first characteristic curve determination reference power P, if now setting the first coefficient is 30%, then the performance number of electric heating tube is defined as P × 30%;
(2) when t < 10 DEG C, according to the second characteristic curve determination reference power, and using reference power as the performance number of electric heating tube.
More than be described with reference to the accompanying drawings technical scheme of the present invention, consider the technical problem of the control program of the gas-liquid separator how designing a kind of low-power consumption in correlation technique and the gas-liquid separator of high energy efficiency, the present invention proposes a kind of Poewr control method, a kind of power control system, a kind of gas-liquid separator and a kind of air-conditioner, by working temperature and the predetermined power control table determination performance number of gas-liquid separator, ensure that air-conditioner heating capacity under cryogenic, meanwhile, power consumption has been saved.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. a Poewr control method, is applicable to the electric heating tube of gas-liquid separator, it is characterized in that, comprising:
Judge whether the working temperature of described gas-liquid separator is greater than zero;
Determine the performance number of described electric heating tube according to the result of determination of described working temperature, comprise following concrete steps:
When judging that described working temperature is not more than zero, determine the default working temperature in the predetermined power control table that described working temperature is corresponding, wherein, described predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, to determine the described reference power value that described working temperature is corresponding;
Determine described performance number according to described reference power value and predetermined power coefficient, and drive described electric heating tube to carry out work with described performance number.
2. Poewr control method according to claim 1, is characterized in that, before judging whether described working temperature is greater than zero, comprising:
Create predetermined power control table, wherein, described predetermined power control table comprises the first characteristic curve and the second characteristic curve, default working temperature in default working temperature in described first characteristic curve and described second characteristic curve is all less than or equal to zero, and described first characteristic default working temperature is greater than the default working temperature in described second characteristic curve.
3. Poewr control method according to claim 1, is characterized in that, determines the performance number of described electric heating tube according to the result of determination of described working temperature, also comprises following concrete steps:
Zero is not more than at the described working temperature of judgement, and described working temperature is when being in the threshold range of described first characteristic default working temperature, judge whether the duration that described working temperature is in the threshold range of described first characteristic default working temperature is more than or equal to preset durations;
When the duration that the described working temperature of judgement is in the threshold range of described first characteristic default working temperature is more than or equal to described preset durations, determine that described predetermined power coefficient is the first coefficient;
Calculate the product value of reference power value corresponding to described working temperature, the first characteristic default working temperature that described working temperature is corresponding and described first coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
4. Poewr control method according to claim 1, is characterized in that, determines the performance number of described electric heating tube according to the result of determination of described working temperature, also comprises following concrete steps:
Be not more than zero at the described working temperature of judgement, and when described working temperature is in the threshold range of described second characteristic default working temperature, determine that described predetermined power coefficient is the second coefficient;
Calculate the product value of reference power value corresponding to described working temperature, the second characteristic default working temperature that described working temperature is corresponding and described second coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
5. Poewr control method according to any one of claim 1 to 4, is characterized in that, determines the performance number of described electric heating tube according to the result of determination of described working temperature, also comprises following concrete steps:
When judging that described working temperature is greater than zero, determining that described performance number is zero, not working to control described electric heating tube.
6. a power control system, is applicable to the electric heating tube of gas-liquid separator, it is characterized in that, comprising:
Judging unit, for judging whether the working temperature of described gas-liquid separator is greater than zero;
Determining unit, for determining the performance number of described electric heating tube according to the result of determination of described working temperature; Described determining unit also for, when judging that described working temperature is not more than zero, determine the default working temperature in the predetermined power control table that described working temperature is corresponding, wherein, described predetermined power control table comprises the one-to-one relationship of default working temperature and reference power value, to determine the described reference power value that described working temperature is corresponding;
Driver element, for determining described performance number according to described reference power value and predetermined power coefficient, and drives described electric heating tube to carry out work with described performance number.
7. power control system according to claim 6, is characterized in that, also comprises:
Creating unit, for creating predetermined power control table, wherein, described predetermined power control table comprises the first characteristic curve and the second characteristic curve, default working temperature in default working temperature in described first characteristic curve and described second characteristic curve is all less than or equal to zero, and described first characteristic default working temperature is greater than the default working temperature in described second characteristic curve.
8. power control system according to claim 6, it is characterized in that, described judging unit also for, zero is less than or equal at the described working temperature of judgement, and described working temperature is when being in the threshold range of described first characteristic default working temperature, judge whether the duration that described working temperature is in the threshold range of described first characteristic default working temperature is more than or equal to preset durations;
Described determining unit also for, when the duration judging that described working temperature is in the threshold range of described first characteristic default working temperature is more than or equal to described preset durations, determine that described predetermined power coefficient is the first coefficient;
Described power control system also comprises:
Computing unit, for calculating the product value of reference power value corresponding to described working temperature, the first characteristic default working temperature that described working temperature is corresponding and described first coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
9. power control system according to claim 6, it is characterized in that, described determining unit also for, zero is less than or equal at the described working temperature of judgement, and described working temperature is when being in the threshold range of described second characteristic default working temperature, determine that described predetermined power coefficient is the second coefficient;
Described computing unit also for, calculate the product value of reference power value corresponding to described working temperature, the second characteristic default working temperature that described working temperature is corresponding and described second coefficient, using described product value as described performance number, described electric heating tube is driven to carry out work with described performance number.
10. the power control system according to any one of claim 6 to 9, is characterized in that, described determining unit also for, judge described working temperature be greater than zero time, determine that described performance number is zero, do not work to control described electric heating tube.
11. 1 kinds of gas-liquid separators, upper area in the tank body of described gas-liquid separator is gas held region, lower area in the tank body of described gas-liquid separator is liquid containing region, described gas-liquid separator is provided with air inlet pipe and escape pipe, described air inlet pipe is arranged at described gas held region, described air inlet pipe has the first port and the second port that are connected, described first port is positioned at outside described tank body, described second port penetrates the inside of described tank body, it is characterized in that, described gas-liquid separator comprises:
Temperature sensor, described temperature sensor is located at the inside of described tank body, and the described working temperature for the inside to described tank body is monitored;
Controller, is connected to described temperature sensor and electric heating assembly, and for according to described internal condition temperature determination driving instruction, to drive described electric heating assembly to carry out work, wherein, described driving instruction comprises performance number;
Electric heating assembly, is arranged at described gas held region discretely with described escape pipe, and for carrying out temperature-compensating to the gas-liquid mixture in described gas held region, described electric heating assembly comprises:
Power control system according to any one of claim 6 to 10;
Electrical heating tank body;
Electric heating tube, be arranged at the inside of described electrical heating tank body, described electric heating tube is connected to described controller, for carrying out work according to described driving instruction, is filled with insulating heat-conduction material between described electrical heating tank body and described electrical heating tank body.
12. gas-liquid separators according to claim 11, is characterized in that, described air inlet pipe is L shape pipe, and described L shape pipe comprises the horizontal tube and VERTICAL TUBE that are connected, and described first port is located in described VERTICAL TUBE, and described second port is located on described horizontal tube.
13. gas-liquid separators according to claim 12, is characterized in that, the tube wall of described horizontal tube offers through hole.
14. gas-liquid separators according to claim 13, is characterized in that, the tube wall of described horizontal tube offer multiple described through hole, and the axis of multiple described through hole is equal and plane-parallel.
15. gas-liquid separators according to claim 14, is characterized in that, multiple described through hole is opened on the relative tube wall of described horizontal tube symmetrically.
16., according to claim 11 to the gas-liquid separator according to any one of 15, is characterized in that, described air inlet pipe is the straight type pipe parallel with plumb line.
17., according to claim 11 to the gas-liquid separator according to any one of 15, is characterized in that,
Described escape pipe is U-shaped pipe, and the bottom of described U-shaped pipe is positioned at described liquid containing region, and the bottom of described U-shaped pipe is provided with at least one return filter.
18., according to claim 11 to the gas-liquid separator according to any one of 15, is characterized in that, the arranged outside of described electrical heating tank body has at least one radiating fin.
19. 1 kinds of air-conditioners, is characterized in that, comprise the gas-liquid separator according to any one of claim 11 to 18.
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