CN112254292A - Method and device for controlling double-evaporator air conditioning system and air conditioner - Google Patents
Method and device for controlling double-evaporator air conditioning system and air conditioner Download PDFInfo
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 89
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The application relates to the technical field of air conditioner control, and discloses a method for controlling a dual-evaporator air conditioner system, which comprises the following steps: the method comprises the following steps: acquiring an air conditioning system operation mode, a first evaporator coil temperature T1 and a second evaporator coil temperature T2; and in the case that the difference DeltaT between the first evaporator coil temperature T1 and the second evaporator coil temperature T2 is larger than a set temperature value, adjusting the first adjusting valve opening Y1 and/or adjusting the second adjusting valve opening Y2 according to the air conditioning system operation mode and the difference DeltaT. The embodiment of the disclosure realizes the adjustment of the running state of the air conditioning system according to the real-time shunting condition of the evaporator, can timely and effectively improve the uniformity of the air outlet temperature of the air conditioning system, and improves the user experience. The application also discloses a control and air conditioner for the double-evaporator air conditioning system.
Description
Technical Field
The present application relates to the technical field of air conditioner control, and for example, to a method and an apparatus for controlling a dual-evaporator air conditioning system, and an air conditioner.
Background
At present, with the continuous improvement of the living standard of people, the requirement of consumers on the air conditioner is gradually improved, and a double-evaporation air conditioning system is produced. The branches where the two evaporators are located are arranged in parallel, and outlets of the two evaporators are communicated with an inlet of the compressor. The prior art provides various control schemes for a dual-evaporator air conditioning system, and generally performs shunting through a simple T-shaped tee joint, or selects two expansion valves with electromagnetic switches and controls the opening or closing of the electromagnetic expansion valves according to set duration to perform shunting.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
and the air conditioner cannot actively adjust when the shunting deviation is generated, so that the air outlet temperature difference of the air conditioner is large.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method and a device for controlling a double-evaporator air conditioning system and an air conditioner, and aims to solve the technical problem that the left and right air outlet temperature difference of the air conditioner is large because active adjustment cannot be performed when a shunting deviation is generated.
In some embodiments, the method comprises:
acquiring an air conditioning system operation mode, a first evaporator coil temperature T1 and a second evaporator coil temperature T2;
and in the case that the difference DeltaT between the first evaporator coil temperature T1 and the second evaporator coil temperature T2 is larger than a set temperature value, adjusting the first adjusting valve opening Y1 and/or adjusting the second adjusting valve opening Y2 according to the air conditioning system operation mode and the difference DeltaT.
In some embodiments, the apparatus comprises: a processor and a memory storing program instructions, the processor being configured to, upon execution of the program instructions, perform the method for dual evaporator air conditioning system control described above.
In some embodiments, the air conditioner includes: two evaporators and a device for dual evaporator air conditioning system control as described above.
The method and the device for controlling the dual-evaporator air conditioning system and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:
the device for controlling the double-evaporator air conditioning system adjusts the opening degree of the two adjusting valves based on the operation mode of the air conditioning system, the temperature of the first evaporator coil and the temperature of the second evaporator coil, so that the operation state of the air conditioning system is adjusted according to the real-time shunting condition of the evaporators, the uniformity of the air outlet temperature of the air conditioning system can be timely and effectively improved, and the user experience is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of a method for dual evaporator air conditioning system control provided by an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another method for dual evaporator air conditioning system control provided by an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another method for dual evaporator air conditioning system control provided by an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a dual evaporator configuration provided by embodiments of the present disclosure;
fig. 5 is a schematic structural view of an outlet according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of an apparatus for dual evaporator air conditioning system control provided in accordance with an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The method and the device provided by the embodiment of the disclosure are used for controlling the dual-evaporator air conditioning system. Fig. 4 is a schematic structural diagram of a dual evaporator provided by an embodiment of the present disclosure, including: a first evaporator 1, a second evaporator 2, a first evaporator coil 3, a second evaporator coil 4, a first regulating valve 5, a second regulating valve 6 and a T-shaped tee 7. Fig. 5 is a schematic structural diagram of an air outlet provided in the embodiment of the present disclosure, including: a first outlet 8 and a second outlet 9. The first evaporator 1 and the second evaporator 2 shown in fig. 4 are respectively installed in the structure where the first air outlet 8 and the second air outlet 9 shown in fig. 5 are located.
Fig. 1 is a schematic diagram of a method for controlling a dual evaporator air conditioning system according to an embodiment of the present disclosure, including the steps of:
and S101, acquiring an air conditioning system operation mode, a first evaporator coil temperature T1 and a second evaporator coil temperature T2.
And S102, under the condition that the difference value delta T between the first evaporator coil temperature T1 and the second evaporator coil temperature T2 is larger than a set temperature value, adjusting the opening Y1 of the first regulating valve and/or adjusting the opening Y2 of the second regulating valve according to the operation mode of the air conditioning system and the difference value delta T. Optionally, the set temperature value is 1-2 ℃. Optionally, the set temperature value is 1 deg.C, 1.2 deg.C, 1.4 deg.C, 1.5 deg.C, 1.6 deg.C, 1.8 deg.C or 2 deg.C.
In various embodiments, there are multiple control schemes for the first and second regulating valve openings Y1 and Y2. In some embodiments, only the first regulator valve opening Y1 is adjusted. In some embodiments, only the second regulating valve opening Y2 is regulated. In some embodiments, adjusting the first and second regulating valve openings Y1 and Y2 simultaneously may expedite adjusting the air conditioning system to a steady state.
When the difference value delta T is larger than the set temperature value, the risk that the air outlet air temperature difference is large exists, the first regulating valve opening Y1 and the second regulating valve opening Y2 are regulated based on the difference value delta T, the split flow balance between the double evaporators can be guaranteed, the air outlet air temperature is the same, the air outlet comfort is improved, and the user experience is improved.
In the embodiment of the disclosure, the device for controlling the dual-evaporator air conditioning system adjusts the opening degree of the two adjusting valves based on the operation mode of the air conditioning system, the temperature of the first evaporator coil and the temperature of the second evaporator coil, so that the operation state of the air conditioning system is adjusted according to the real-time shunting condition of the evaporators, the uniformity of the air outlet temperature of the air conditioning system can be timely and effectively improved, and the user experience is improved.
Fig. 2 is a schematic diagram of a method for controlling a dual evaporator air conditioning system according to an embodiment of the present disclosure, including the steps of:
s201, an air conditioning system operation mode, a first evaporator coil temperature T1 and a second evaporator coil temperature T2 are obtained.
And S202, judging whether the difference value delta T between the first evaporator coil temperature T1 and the second evaporator coil temperature T2 is greater than a set temperature value Ts.
And S203, if the difference value Delta T is greater than the set temperature value Ts and the operation mode of the air conditioning system is the cooling mode, executing the step S205 or the step S206.
And S204, if the difference value delta T is larger than the set temperature value Ts and the operation mode of the air conditioning system is the heating mode, executing step S207 or step S208.
And S205, controlling the opening degree Y2 of the second regulating valve to be reduced when the operation mode of the air conditioning system is a cooling mode and the temperature T1 of the first evaporator coil is greater than the temperature T2 of the second evaporator coil.
And S206, controlling the opening degree Y1 of the first regulating valve to be reduced when the operation mode of the air conditioning system is a cooling mode and the temperature T1 of the first evaporator coil is lower than the temperature T2 of the second evaporator coil.
And S207, controlling the opening degree Y1 of the first regulating valve to be reduced when the operation mode of the air conditioning system is a heating mode and the temperature T1 of the first evaporator coil is greater than the temperature T2 of the second evaporator coil.
And S208, controlling the opening degree Y2 of the second regulating valve to be reduced when the operation mode of the air conditioning system is a heating mode and the temperature T1 of the first evaporator coil is lower than the temperature T2 of the second evaporator coil.
S209, when the difference Δ T is less than or equal to the set temperature value Ts, the first and second opening degrees Y1 and Y2 are kept unchanged.
In the embodiment of the disclosure, the device for controlling the dual-evaporator air conditioning system adjusts the opening degree of the two adjusting valves based on the operation mode of the air conditioning system, the temperature of the first evaporator coil and the temperature of the second evaporator coil, so that the operation state of the air conditioning system is adjusted according to the real-time shunting condition of the evaporators, the uniformity of the air outlet temperature of the air conditioning system can be timely and effectively improved, and the user experience is improved.
Fig. 3 is a schematic diagram of another method for dual evaporator air conditioning system control provided by an embodiment of the present disclosure, including the steps of:
s301, an air conditioning system operation mode, a first evaporator coil temperature T1 and a second evaporator coil temperature T2 are obtained.
And S302, judging whether the difference value DeltaT between the first evaporator coil temperature T1 and the second evaporator coil temperature T2 is greater than a set temperature value Ts.
And S303, if the difference value delta T is larger than the set temperature value Ts and the operation mode of the air conditioning system is the cooling mode, executing the step S305, the step S306, the step S307 or the step S308.
And S304, if the difference value Delta T is greater than the set temperature value Ts and the operation mode of the air conditioning system is the heating mode, executing the step S308, the step S309, the step S310 or the step S311.
And S305, controlling the opening degree Y2 of the second regulating valve to be reduced if the temperature T1 of the first evaporator coil is higher than the temperature T2 of the second evaporator coil under the condition that the operation mode of the air conditioning system is a cooling mode and the difference Delta T is smaller than or equal to a first set difference.
And S306, controlling the opening degree Y1 of the first regulating valve to be reduced if the temperature T1 of the first evaporator coil is lower than the temperature T2 of the second evaporator coil under the condition that the operation mode of the air conditioning system is a cooling mode and the difference Delta T is smaller than or equal to a first set difference.
And S307, if the operation mode of the air conditioning system is a cooling mode and the difference Delta T is greater than a first set difference, and if the temperature T1 of the first evaporator coil is greater than the temperature T2 of the second evaporator coil, controlling the opening Y2 of the first regulating valve to be increased and controlling the opening Y1 of the second regulating valve to be decreased.
And S308, if the operation mode of the air conditioning system is a cooling mode and the difference Delta T is greater than a first set difference, and if the temperature T1 of the first evaporator coil is less than the temperature T2 of the second evaporator coil, controlling the opening Y1 of the first regulating valve to be reduced and controlling the opening Y2 of the second regulating valve to be increased.
And S309, controlling the opening degree Y1 of the first regulating valve to be reduced if the temperature T1 of the first evaporator coil is higher than the temperature T2 of the second evaporator coil under the condition that the operation mode of the air conditioning system is a heating mode and the difference Delta T is smaller than or equal to a second set difference.
And S310, controlling the opening degree Y2 of the second regulating valve to be reduced if the temperature T1 of the first evaporator coil is lower than the temperature T2 of the second evaporator coil under the condition that the operation mode of the air conditioning system is a heating mode and the difference DeltaT is smaller than or equal to a second set difference.
And S311, if the operation mode of the air conditioning system is a heating mode and the difference Delta T is greater than a second set difference, and if the temperature T1 of the first evaporator coil is greater than the temperature T2 of the second evaporator coil, controlling the opening Y1 of the first regulating valve to be reduced and controlling the opening Y2 of the second regulating valve to be increased.
S312, if the air conditioning system operation mode is the heating mode and the difference Δ T is greater than the second set difference, and the first evaporator coil temperature T1 is less than the second evaporator coil temperature T2, controlling the first regulating valve opening Y1 to increase and controlling the second regulating valve opening Y2 to decrease.
S313, keeping the first and second opening degrees Y1 and Y2 unchanged when the difference Δ T is less than or equal to the set temperature value Ts.
In steps S307 and S308, if the difference Δ T is greater than the first set difference, the first adjusting valve opening Y1 and the second adjusting valve opening Y2 are adjusted simultaneously, so as to speed up the balance between the first evaporator coil temperature T1 and the second evaporator coil temperature T2, and avoid the temperature difference of the air outlet of the air conditioner from being too large. Similarly, in steps S311 and S312, if the difference Δ T is greater than the second setting difference, the first adjusting valve opening Y1 and the second adjusting valve opening Y2 are adjusted at the same time, so as to speed up the balance between the first evaporator coil temperature T1 and the second evaporator coil temperature T2, and avoid the temperature difference of the air outlet of the air conditioner being too large.
In some embodiments, the first setting difference is the same as the second setting difference. Optionally, the first set difference is 3 ℃ to 5 ℃. Optionally, the difference is set at 3 ℃, 4 ℃ or 5 ℃.
In the embodiment of the disclosure, the device for controlling the dual-evaporator air conditioning system adjusts the opening degree of the two adjusting valves based on the operation mode of the air conditioning system, the temperature of the first evaporator coil and the temperature of the second evaporator coil, so that the operation state of the air conditioning system is adjusted according to the real-time shunting condition of the evaporators, the uniformity of the air outlet temperature of the air conditioning system can be timely and effectively improved, and the user experience is improved.
In some embodiments, before adjusting the first regulating valve opening Y1, and/or adjusting the second regulating valve opening Y2, the method further includes: determining the adjustment quantity of the opening of the adjusting valve according to the difference value delta T; and determining the target regulating valve opening according to the regulating quantity and the current regulating valve opening.
In some embodiments, the difference Δ T has the following relationship with the adjustment amount:
△Y＝k*△T*f
wherein, Delta Y is the regulating quantity; k is an adjustment coefficient; f is the maximum opening of the regulating valve. Optionally, the adjustment coefficient is 0.01-0.05. Optionally, the adjustment factor is 0.01, 0.02, 0.03, 0.04, or 0.05.
In some embodiments, the method for dual evaporator air conditioning system control further comprises: in the case where the variation value of the operating frequency of the compressor per unit time is greater than the set frequency, the first and second adjusting valve openings Y1 and Y2 are adjusted to the set opening. Optionally, the set opening is 0.5f to 0.8 f. Alternatively, the set opening degree is 0.5f, 0.6f, 0.7f, or 0.8 f. Wherein f is the maximum opening of the regulating valve. In this disclosure, when the frequency variation of the compressor exceeds the set frequency, the original balance of the air conditioning system changes, the flow distribution of the left and right evaporators changes at this time, and the adjusting valve is adjusted to the set opening degree to reduce the heat and flow imbalance caused by the difference of the opening degrees of the left and right adjusting valves, that is, under a certain frequency, the opening degrees of the two corresponding adjusting valves during the flow balance of the left and right evaporators cannot be applied to the whole frequency segment of the compressor.
Optionally, the set frequency is 10Hz to 20 Hz. Optionally, the set frequency is 10Hz, 12Hz, 14Hz, 16Hz, 18Hz or 20 Hz. And setting the frequency to be less than or equal to the variable quantity of the compressor when the adjacent wind gear is adjusted. The set frequency is not too large, and when the frequency changes, for example, the frequency changes rapidly due to the change of the wind gear or the occurrence of protection, the system is not favorable for rapidly recovering the stable and balanced state. The set frequency is not suitable to be too small, and if the set frequency is too small, the opening degree is continuously adjusted due to slight change of the frequency, so that the stable control of the system is not facilitated. Illustrated in heating mode: the temperature of the coil is gradually increased along with the heating stable operation until the highest value is reached, and when the highest value is higher than the set protection temperature value, the frequency of the compressor is reduced. If the set frequency is too small, the frequency variation can be finely adjusted to meet the system protection requirement, and the first regulating valve opening Y1 and the second regulating valve opening Y2 are simultaneously regulated to the set opening, which is not beneficial to the balance of the system and the high efficiency of the control.
In some embodiments, after the operating frequency of the compressor is changed to a value greater than the set frequency per unit time and the first and second regulating valve openings Y1 and Y2 are adjusted to the set opening, the first and second regulating valve openings Y1 and Y2 are adjusted after the compressor is stably operated for the first set time. Optionally, the second set time is 15-20 minutes. Optionally, the second set time is 15 minutes, 16 minutes, 17 minutes, 18 minutes, 19 minutes, or 20 minutes. The first set time of stable operation is maintained, the whole system is ensured to be in a stable balance state, and the first regulating valve opening Y1 and the second regulating valve opening Y2 are regulated at the moment, so that the pressure of the evaporator can be reduced.
In some embodiments, the initial opening of the first and second regulating valve openings Y1 and Y2 is a set opening at each power-on, and the opening of the regulating valve is regulated at a first set time for maintaining stable operation.
In some embodiments, in adjusting the first and second regulating valve openings Y1 and Y2, an interval between adjacent two adjustments is greater than or equal to the second set time. Optionally, the second set time is 1-3 minutes. Optionally, the second set time is 1 minute, 2 minutes, or 3 minutes.
In some embodiments, after the difference Δ T between the first evaporator coil temperature T1 and the second evaporator coil temperature T2 is converted from a greater than set temperature value to a smaller than set temperature value, the difference Δ T between the first evaporator coil temperature T1 and the second evaporator coil temperature T2 is determined again at a third set time interval, and the opening of the first regulating valve opening Y1 or the second regulating valve opening Y2 is adjusted if the difference Δ T is greater than the set temperature value. And the third set time is greater than the second set time. Optionally, the third set time is 5-10 minutes. Optionally, the third set time is 5 minutes, 6 minutes, 7 minutes, 8 minutes, 9 minutes, or 10 minutes.
In some embodiments, the opening of the regulating valve is greater than or equal to the set limit value, i.e., after the opening of any regulating valve is regulated to the set limit value, the regulating valve does not reduce the opening continuously. Optionally, the set limit is 0.3f to 0.5 f. Optionally, the set limit is 0.3f, 0.4f, or 0.5 f. Wherein f is the maximum opening of the regulating valve.
The disclosed embodiment provides a device for controlling a dual-evaporator air conditioning system, including: a processor and a memory storing program instructions, the processor being configured to, upon execution of the program instructions, perform the method for dual evaporator air conditioning system control described above.
As shown in fig. 6, an embodiment of the present disclosure provides an apparatus for controlling a dual evaporator air conditioning system, which includes a processor (processor)600 and a memory (memory) 601. Optionally, the apparatus may also include a Communication Interface 602 and a bus 603. The processor 600, the communication interface 602, and the memory 601 may communicate with each other via a bus 603. The communication interface 602 may be used for information transfer. The processor 600 may invoke logic instructions in the memory 601 to perform the method for dual evaporator air conditioning system control of the above described embodiment.
In addition, the logic instructions in the memory 601 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 601 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 600 executes functional applications and data processing by executing program instructions/modules stored in the memory 601, i.e., implements the method for controlling the dual evaporator air conditioning system in the above-described embodiment.
The memory 601 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 601 may include a high speed random access memory, and may also include a non-volatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the device for controlling the double-evaporator air conditioning system.
Embodiments of the present disclosure provide a computer-readable storage medium having stored thereon computer-executable instructions configured to perform the above-described method for dual evaporator air conditioning system control.
Embodiments of the present disclosure provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the above-described method for dual evaporator air conditioning system control.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for dual evaporator air conditioning system control, comprising:
acquiring an air conditioning system operation mode, a first evaporator coil temperature T1 and a second evaporator coil temperature T2;
and in the case that the difference DeltaT between the first evaporator coil temperature T1 and the second evaporator coil temperature T2 is larger than a set temperature value, adjusting a first adjusting valve opening Y1 and/or adjusting a second adjusting valve opening Y2 according to the air conditioning system operation mode and the difference DeltaT.
2. The method of claim 1, wherein adjusting a first regulator valve opening Y1, and/or adjusting a second regulator valve opening Y2, as a function of the air conditioning system operating mode and the difference Δ T comprises:
controlling the second regulating valve opening degree Y2 to be reduced when the air-conditioning system operation mode is a cooling mode and the first evaporator coil temperature T1 is greater than the second evaporator coil temperature T2;
and controlling the opening degree Y1 of the first regulating valve to be reduced when the operation mode of the air conditioning system is a cooling mode and the first evaporator coil temperature T1 is less than the second evaporator coil temperature T2.
3. The method of claim 2, wherein adjusting a first regulator valve opening Y1, and/or adjusting a second regulator valve opening Y2, as a function of the air conditioning system operating mode and the difference Δ T comprises:
controlling the first regulating valve opening degree Y1 to be reduced when the air conditioning system operation mode is a heating mode and the first evaporator coil temperature T1 is greater than the second evaporator coil temperature T2;
and controlling the opening degree Y2 of the second regulating valve to be reduced under the condition that the operation mode of the air conditioning system is a heating mode and the temperature T1 of the first evaporator coil is less than the temperature T2 of the second evaporator coil.
4. The method of claim 1, wherein adjusting a first regulator valve opening Y1, and/or adjusting a second regulator valve opening Y2, as a function of the air conditioning system operating mode and the difference Δ T comprises:
when the air conditioning system operation mode is a cooling mode and the difference DeltaT is smaller than or equal to a first set difference, if the first evaporator coil temperature T1 is greater than the second evaporator coil temperature T2, controlling the opening degree Y2 of the second regulating valve to be reduced; controlling the first regulating valve opening degree Y1 to decrease if the first evaporator coil temperature T1 is less than the second evaporator coil temperature T2;
when the air conditioning system operation mode is a cooling mode and the difference DeltaT is greater than the first set difference, if the first evaporator coil temperature T1 is greater than the second evaporator coil temperature T2, controlling the first regulating valve opening Y2 to increase and controlling the second regulating valve opening Y1 to decrease; if the first evaporator coil temperature T1 is less than the second evaporator coil temperature T2, the first regulating valve opening Y1 is controlled to decrease and the second regulating valve opening Y2 is controlled to increase.
5. The method of claim 4, wherein adjusting a first regulator valve opening Y1, and/or adjusting a second regulator valve opening Y2, as a function of the air conditioning system operating mode and the difference Δ T comprises:
if the air conditioning system operation mode is a heating mode and the difference DeltaT is smaller than or equal to a second set difference, controlling the opening degree Y1 of the first regulating valve to be reduced if the first evaporator coil temperature T1 is greater than the second evaporator coil temperature T2; controlling the second regulating valve opening degree Y2 to decrease if the first evaporator coil temperature T1 is less than the second evaporator coil temperature T2;
when the air conditioning system operation mode is a heating mode and the difference DeltaT is greater than the second set difference, if the first evaporator coil temperature T1 is greater than the second evaporator coil temperature T2, controlling the first regulating valve opening Y1 to be reduced and controlling the second regulating valve opening Y2 to be increased; if the first evaporator coil temperature T1 is less than the second evaporator coil temperature T2, the first regulating valve opening Y1 is controlled to increase and the second regulating valve opening Y2 is controlled to decrease.
6. The method of any one of claims 1 to 5, further comprising, prior to adjusting the first regulating valve opening Y1, and/or, prior to adjusting the second regulating valve opening Y2:
determining the adjustment quantity of the opening of the adjusting valve according to the difference value delta T;
and determining the target regulating valve opening according to the regulating quantity and the current regulating valve opening.
7. The method according to claim 6, characterized in that the difference Δ T and the adjustment quantity have the following relationship:
△Y＝k*△T*f
wherein Δ Y is the adjustment amount; k is an adjustment coefficient; f is the maximum opening of the regulating valve.
8. The method of claim 6 or 7, further comprising: and adjusting the first and second adjusting valve openings Y1 and Y2 to a set opening degree in case that a variation value of the operating frequency of the compressor per unit time is greater than a set frequency.
9. An apparatus for dual evaporator air conditioning system control comprising a processor and a memory having stored thereon program instructions, wherein the processor is configured to perform the method for dual evaporator air conditioning system control of any of claims 1-8 when executing the program instructions.
10. An air conditioner comprising two evaporators and the apparatus for controlling a dual evaporator air conditioning system as claimed in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011000006.0A CN112254292A (en) | 2020-09-22 | 2020-09-22 | Method and device for controlling double-evaporator air conditioning system and air conditioner |
| PCT/CN2021/093259 WO2021223764A1 (en) | 2020-09-22 | 2021-05-12 | Method and device for controlling dual-evaporator air conditioning system, and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011000006.0A CN112254292A (en) | 2020-09-22 | 2020-09-22 | Method and device for controlling double-evaporator air conditioning system and air conditioner |
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| CN202011000006.0A Pending CN112254292A (en) | 2020-09-22 | 2020-09-22 | Method and device for controlling double-evaporator air conditioning system and air conditioner |
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| WO (1) | WO2021223764A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113465134A (en) * | 2021-04-23 | 2021-10-01 | 青岛海尔空调器有限总公司 | Control method and device of air conditioner, storage medium and air conditioner |
| CN113465147A (en) * | 2021-04-25 | 2021-10-01 | 青岛海尔空调器有限总公司 | Control method and system for heating of air conditioner and air conditioner |
| WO2021223764A1 (en) * | 2020-09-22 | 2021-11-11 | 青岛海尔空调器有限总公司 | Method and device for controlling dual-evaporator air conditioning system, and air conditioner |
| CN114543299A (en) * | 2022-01-20 | 2022-05-27 | 青岛海尔空调器有限总公司 | Control method for air conditioner and air conditioner |
| CN114543297A (en) * | 2022-01-17 | 2022-05-27 | 青岛海尔空调器有限总公司 | Control method for air conditioner and air conditioner |
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| CN115213233B (en) * | 2022-04-22 | 2024-10-18 | 广西广盛新材料科技有限公司 | Method, controller and system for spraying and sweeping strip steel |
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| WO2021223764A1 (en) | 2021-11-11 |
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