CN113847687A - Preheating control method and device for compressor - Google Patents
Preheating control method and device for compressor Download PDFInfo
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- CN113847687A CN113847687A CN202111113086.5A CN202111113086A CN113847687A CN 113847687 A CN113847687 A CN 113847687A CN 202111113086 A CN202111113086 A CN 202111113086A CN 113847687 A CN113847687 A CN 113847687A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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
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Abstract
The application provides a compressor preheating control method and a device, firstly, the shutdown time of the compressor under the low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature are obtained; then, according to the shutdown time and the exhaust temperature, whether the preheating of the compressor coil is started or not is determined; finally, opening the compressor coil and preheating the condition in the affirmation, confirm the heating power of compressor coil according to the outer loop temperature, realize preheating the compressor through heating the compressor coil, with the problem that the preheating scheme continuous heating of compressor leads to power consumption big among the solution prior art, preheating scheme preheating time with the compressor among the solution prior art under outdoor microthermal condition is not intelligent, the problem that the energy consumption is big, can cancel the electric heating tape simultaneously, through outer loop temperature and exhaust temperature, several variable parameter intelligence judgement of down time preheats and opens and close, with the problem that the preheating scheme continuous heating of compressor leads to power consumption big among the solution prior art.
Description
Technical Field
The application relates to the field of air conditioners, in particular to a compressor preheating control method and device, an air conditioner, a computer readable storage medium and a processor.
Background
When the air conditioning system is placed in a standby mode for a long time under the low-temperature working condition at present, a refrigerant can migrate into the compressor, so that accumulated liquid can start and run when the compressor is started next time, and a large amount of compressor refrigeration oil can be discharged to cause the hidden danger of oil shortage of the compressor. At present conventional solution increases the electrical heating area on compressor oil sump position, but this kind of external electrical heating area has electrical safety hidden danger, and power is limited, can't reach the high power, leads to heating effect poor, can only open the heating for a long time under low temperature environment, and power consumption is big, and the preheating scheme to compressor among the prior art lasts the problem that the heating leads to power consumption big, has not proposed effectual solution at present.
Disclosure of Invention
The present application mainly aims to provide a compressor preheating control method and apparatus, an air conditioner, a computer readable storage medium, and a processor, so as to solve the problem of large power consumption caused by continuous heating in a preheating scheme of a compressor in the prior art.
In order to achieve the above object, according to one aspect of the present application, there is provided a compressor warm-up control method for acquiring a down time of a compressor under a low temperature condition, a discharge temperature of the compressor, and an outer ring temperature; determining whether to start preheating of a compressor coil according to the shutdown time and the exhaust temperature; and under the condition that the preheating of the compressor coil is started, determining the heating power of the compressor coil according to the outer ring temperature, and preheating the compressor by heating the compressor coil.
Optionally, determining whether to turn on compressor coil preheating based on the shutdown time and the discharge temperature comprises: and determining to start the preheating of the compressor coil under the condition that the shutdown time is more than the preset time and the exhaust temperature is less than or equal to a first temperature.
Optionally, in a case that it is determined to turn on the preheating of the compressor coil, determining the heating power according to the outer ring temperature includes: determining the heating power to be first heating power under the condition that the outer ring temperature is greater than a third temperature and less than or equal to a second temperature, wherein the third temperature is less than the second temperature; determining the heating power to be second heating power under the condition that the outer ring temperature is greater than a fourth temperature and less than or equal to a third temperature, wherein the fourth temperature is less than the third temperature; and under the condition that the outer ring temperature is lower than a fourth temperature, determining the heating power as a third heating power, wherein the first heating power is lower than the second heating power, and the second heating power is lower than the third heating power.
Optionally, the method further comprises: and in the process of preheating the compressor, under the condition that the temperature of the outer ring is higher than the second temperature and lower than a fifth temperature, controlling the heating power to be kept unchanged, wherein the second temperature is lower than the fifth temperature.
Optionally, the method further comprises: and in the process of preheating the compressor, stopping preheating the compressor under the condition that the temperature of the outer ring is greater than or equal to the fifth temperature.
Optionally, the method further comprises: in the process of preheating the compressor, the preheating of the compressor is stopped when the exhaust temperature is greater than zero degrees centigrade.
Optionally, the method further comprises: and in the process of preheating the compressor, under the condition that the fluctuation value of the outer ring temperature is greater than a preset value, the heating power is determined again, wherein the fluctuation value is the obtained difference value of the two adjacent outer ring temperatures.
Optionally, the method further comprises: and in the process of preheating the compressor, if fault protection occurs, the preheating of the compressor is stopped.
In order to achieve the above object, according to one aspect of the present application, there is provided a compressor warm-up control apparatus including: the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the shutdown time of a compressor under a low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature; the first determining unit is used for determining whether to start preheating of a compressor coil according to the shutdown time and the exhaust temperature; and the second determining unit is used for determining the heating power of the compressor coil according to the outer ring temperature under the condition of determining to start the preheating of the compressor coil, and preheating the compressor by heating the compressor coil.
According to another aspect of the present application, there is provided an air conditioner including: a compressor, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for performing any of the methods.
According to yet another aspect of the application, a computer-readable storage medium is provided, comprising a stored program, wherein the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform any of the methods.
According to yet another aspect of the application, a processor for running a program is provided, wherein the program performs any one of the methods when running.
The technical scheme of the application provides a compressor preheating control method, which comprises the steps of firstly, obtaining the shutdown time of a compressor under a low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature; then, according to the shutdown time and the exhaust temperature, whether a compressor coil is started to preheat is determined; and finally, under the condition that the preheating of the compressor coil is started, determining the heating power of the compressor coil according to the outer ring temperature, and preheating the compressor by heating the compressor coil so as to solve the problem of high power consumption caused by continuous heating of a preheating scheme of the compressor in the prior art.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 illustrates a flow chart of a compressor warm-up control method according to an embodiment of the present application;
FIG. 2 illustrates a schematic diagram of a compressor warm-up control apparatus according to an embodiment of the present application;
fig. 3 shows a flowchart of a compressor warm-up control according to an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above 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 application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As introduced in the background art, the preheating scheme of the compressor in the prior art continuously heats the compressor to cause large power consumption, and to solve the problem of the power consumption caused by the continuous heating of the preheating scheme of the compressor in the prior art, embodiments of the present application provide a compressor preheating control method and apparatus, an air conditioner, a computer-readable storage medium, and a processor.
According to an embodiment of the present application, a compressor warm-up control method is provided.
Fig. 1 is a flowchart of a compressor warm-up control method according to an embodiment of the present application. As shown in fig. 1, the method comprises the steps of:
step S101, obtaining the shutdown time of a compressor under a low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature;
step S102, determining whether to start a compressor coil for preheating according to the shutdown time and the exhaust temperature;
and step S103, under the condition that the preheating of the compressor coil is started, determining the heating power of the compressor coil according to the outer ring temperature, and preheating the compressor by heating the compressor coil.
In the preheating control method of the compressor, firstly, the shutdown time of the compressor under the low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature are obtained; then, according to the stop time and the exhaust temperature, whether to start the preheating of the compressor coil is determined; finally, confirm to open the condition that above-mentioned compressor coil preheats, confirm the heating power of compressor coil according to above-mentioned outer loop temperature, realize preheating above-mentioned compressor through heating above-mentioned compressor coil, preheating time is not intelligent in order to solve the preheating scheme preheating time of compressor among the prior art under the low temperature condition outdoors, the problem that the energy consumption is big, can take away the electric heating tape simultaneously, through outer loop temperature and exhaust temperature, several variable parameter intelligence judgments of down time preheat and open and close, in order to solve the problem that the preheating scheme continuous heating of compressor among the prior art leads to power consumption big.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
In an embodiment of the application, when the compressor coil is started by self-preheating, a charging time sequence is required to be executed, namely, power is supplied to the coil, and at the moment, the PFC is in a closed state, so that the aims of heating the compressor coil only, closing off some loads and saving power are fulfilled.
In an embodiment of the application, the compressor coil can be preheated again after stopping preheating for 25min, specifically, after the compressor coil is preheated, the compressor coil needs to wait for a certain time to cool down, and the time of preheating again can be set according to actual conditions, so as to achieve a good preheating effect, and effectively solve the problem of excessive energy consumption.
In an alternative embodiment of the present application, after power is supplied for the first time (i.e., after power is supplied to the air conditioner for the first time), if there is no instruction to start the compressor within 1min, the preheating function is determined to be executed after 1min, and the shutdown time does not need to be waited, so as to achieve the purposes of saving the flow and having simple setting.
In one embodiment of the application, the fan is started in advance, the compressor is started again, and preheating is stopped after the compressor is started.
In an embodiment of the application, 20s of delay is needed when turning on from preheating, and in the in-process of preheating, if when breaking down, the fault display shortest time is 20s, specifically, preheat at least and start after 20 seconds, preheat time and guarantee 20 seconds, preheat the trouble that the in-process takes place and do not remind, show after 20 seconds.
In one embodiment of the present application, determining whether to start preheating of the compressor coil according to the shutdown time and the exhaust temperature includes: and determining to start the preheating of the compressor coil under the condition that the stop time is more than the preset time and the exhaust temperature is less than or equal to the first temperature, and specifically determining whether to start the preheating of the compressor coil by limiting the stop time and the exhaust temperature so as to achieve the problem of saving power.
In an embodiment of the present application, determining the heating power according to the outer ring temperature when determining to turn on the preheating of the compressor coil includes: determining the heating power as a first heating power when the outer ring temperature is greater than a third temperature and less than or equal to a second temperature, wherein the third temperature is less than the second temperature; determining the heating power to be a second heating power when the outer ring temperature is greater than a fourth temperature and less than or equal to a third temperature, the fourth temperature being less than the third temperature; when the outer ring temperature is lower than a fourth temperature, the heating power is determined to be a third heating power, the first heating power is lower than the second heating power, the second heating power is lower than the third heating power, specifically, the outer ring temperature is an external environment temperature, and the required heating powers of different outer ring temperatures are different, for example, when the outer ring temperature is between a first temperature and a second temperature, the required heating power is the minimum, so that not only the problem of high energy consumption can be solved, but also the problem of potential safety hazard caused by excessive power can be solved.
In an embodiment of the present application, the method further includes: in the process of preheating the compressor, under the condition that the outer ring temperature is greater than the second temperature and less than a fifth temperature, the heating power is controlled to be kept unchanged, the second temperature is less than the fifth temperature, specifically, when the outer ring temperature is between the second temperature and the fifth temperature, the heating power is kept unchanged, the fifth temperature can also be limited according to the actual situation, at this time, the outer ring temperature is not very low, the heating power is kept unchanged, and the power consumption is greatly saved.
In an embodiment of the present application, the method further includes: in the process of preheating the compressor, under the condition that the outer ring temperature is greater than or equal to the fifth temperature, the preheating of the compressor is stopped, specifically, when the outer ring temperature exceeds the fifth temperature, the outer ring temperature does not meet the condition of preheating the compressor, the compressor does not need to be preheated, the power consumption is greatly saved, and the operation reliability of the compressor is also improved.
In an embodiment of the present application, the method further includes: in the process of preheating the compressor, under the condition that the exhaust temperature is greater than zero centigrade, the preheating of the compressor is stopped, specifically, when the outer ring temperature exceeds the fifth temperature, the outer ring temperature does not meet the condition of preheating the compressor at the moment, and the compressor does not need to be preheated, so that the power consumption is greatly saved, and the operation reliability of the compressor is also improved.
In an embodiment of the present application, the method further includes: in the process of preheating the compressor, the heating power is determined again under the condition that the fluctuation value of the outer ring temperature is larger than a preset value, wherein the fluctuation value is the obtained difference value of the temperatures of two adjacent outer rings, specifically, in the process of preheating the compressor, the fluctuation of the temperature value of the outer ring exists, if the fluctuation value exceeds the preset value, the interval of the outer ring temperature needs to be judged again, the preheating state is adjusted, the required heating power is ensured to be more accurate, and the situation that the heating power is too low or too high is prevented.
In an embodiment of the present application, the method further includes: in the process of preheating the compressor, if fault protection occurs, the preheating of the compressor is stopped, specifically, the fault protection includes: overcurrent protection, lack fluorine protection and overload protection, when putting down fault protection, avoid having the potential safety hazard, will stop preheating above-mentioned compressor.
The embodiment of the present application further provides a compressor preheating control device, and it should be noted that the compressor preheating control device according to the embodiment of the present application may be used to execute the compressor preheating control method provided by the embodiment of the present application. The following describes a compressor warm-up control apparatus provided in an embodiment of the present application.
Fig. 2 is a schematic diagram of a compressor warm-up control apparatus according to an embodiment of the present application. As shown in fig. 2, the apparatus includes:
an obtaining unit 10, configured to obtain a shutdown time of the compressor under a low-temperature working condition, an exhaust temperature of the compressor, and an outer ring temperature;
a first determining unit 20 for determining whether to start preheating of the compressor coil according to the shutdown time and the exhaust temperature;
a second determining unit 30, configured to determine, according to the outer ring temperature, a heating power of the compressor coil when determining to start the preheating of the compressor coil, and heat the compressor coil to preheat the compressor.
In the compressor preheating device, an acquisition unit acquires the shutdown time of the compressor under a low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature; the first determining unit determines whether to start preheating of a compressor coil according to the shutdown time and the exhaust temperature; the second confirms that the unit is opening above-mentioned compressor coil and is preheating under the circumstances in the affirmation, confirm the heating power of compressor coil according to above-mentioned outer loop temperature, realize preheating above-mentioned compressor through heating above-mentioned compressor coil, preheating time is not intelligent with the preheating scheme who solves compressor among the prior art under the low temperature condition outdoors, the problem that the energy consumption is big, can take away the electric heating tape simultaneously, through outer loop temperature and exhaust temperature, several variable parameter intelligence judgments of down time preheat and open and close, in order to solve among the prior art preheating scheme of compressor and continuously heat and lead to the big problem of power consumption.
In an embodiment of the application, the first determining unit includes a first determining module, and the first determining module is configured to determine to turn on the preheating of the compressor coil when the shutdown time is greater than a predetermined time and the exhaust temperature is less than or equal to a first temperature, and specifically, determine whether to turn on the preheating of the compressor coil by limiting the shutdown time and the exhaust temperature, so as to achieve the power saving problem.
In an embodiment of the present application, the second determining unit includes a second determining module, a third determining module and a fourth determining module, and the second determining module is configured to determine the heating power as a first heating power when the outer ring temperature is greater than a third temperature and less than or equal to a second temperature, where the third temperature is less than the second temperature; the third determining module is used for determining the heating power as a second heating power under the condition that the outer ring temperature is greater than a fourth temperature and less than or equal to a third temperature, wherein the fourth temperature is less than the third temperature; the fourth determining module is configured to determine that the heating power is a third heating power, the first heating power is smaller than the second heating power, the second heating power is smaller than the third heating power, specifically, the outer ring temperature is an external environment temperature, and the required heating powers of different outer ring temperatures are different, for example, when the outer ring temperature is between the first temperature and the second temperature, the required heating power is the smallest, which not only can solve the problem of large energy consumption, but also can solve the problem of potential safety hazard due to excessive power.
In an embodiment of the application, the apparatus further includes a control unit, configured to control the heating power to remain unchanged when the outer ring temperature is greater than the second temperature and less than a fifth temperature in a process of preheating the compressor, where the second temperature is less than the fifth temperature, and specifically, when the outer ring temperature is between the second temperature and the fifth temperature, the heating power remains unchanged, and the fifth temperature may also be limited according to an actual situation, where the outer ring temperature is not very low, and the heating power remains unchanged, so that power consumption is greatly reduced.
In an embodiment of the present application, the apparatus further includes: the first stopping unit is used for stopping preheating the compressor under the condition that the outer ring temperature is greater than or equal to the fifth temperature in the process of preheating the compressor, specifically, when the outer ring temperature exceeds the fifth temperature, the outer ring temperature does not meet the condition of preheating the compressor, the compressor does not need to be preheated, power consumption is greatly saved, and the running reliability of the compressor is also improved.
In an embodiment of the present application, the apparatus further includes: and the second stopping unit is used for stopping preheating the compressor under the condition that the exhaust temperature is greater than zero DEG C in the process of preheating the compressor, specifically, when the outer ring temperature exceeds the fifth temperature, the outer ring temperature does not meet the condition of preheating the compressor at the moment, and the compressor does not need to be preheated, so that the power consumption is greatly saved, and the running reliability of the compressor is also improved.
In an embodiment of the present application, the apparatus further includes: and a third determining unit, configured to re-determine the heating power when a fluctuation value of the outer ring temperature is greater than a predetermined value in a process of preheating the compressor, where the fluctuation value is an obtained difference value between two adjacent outer ring temperatures, and specifically, when the compressor is preheated, a fluctuation of an outer ring temperature value exists, and if the fluctuation value is sufficient to the predetermined value, an interval where the outer ring temperature is located needs to be re-determined, and a thermal state is adjusted, so that the required heating power is ensured to be more accurate, and a situation that the heating power is too low or too high is prevented.
In an embodiment of the present application, the apparatus further includes: a third stopping unit, configured to, in a process of preheating the compressor, stop preheating the compressor if a fault protection occurs, where specifically, the fault protection includes: overcurrent protection, lack fluorine protection and overload protection, when putting down fault protection, avoid having the potential safety hazard, will stop preheating above-mentioned compressor.
The compressor preheating control device comprises a processor and a memory, wherein the acquisition unit, the first determination unit, the second determination unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to one or more than one, and the problem of large power consumption caused by continuous heating of the preheating scheme of the compressor in the prior art is solved by adjusting the kernel parameters.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
The embodiment of the invention provides a computer-readable storage medium, which comprises a stored program, wherein when the program runs, a device where the computer-readable storage medium is located is controlled to execute the compressor preheating control method.
The embodiment of the invention provides a processor, which is used for running a program, wherein the program executes the preheating control method of the compressor when running.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program which is stored on the memory and can run on the processor, wherein when the processor executes the program, at least the following steps are realized:
step S101, obtaining the shutdown time of a compressor under a low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature;
step S102, determining whether to start a compressor coil for preheating according to the shutdown time and the exhaust temperature;
and step S103, under the condition that the preheating of the compressor coil is started, determining the heating power of the compressor coil according to the outer ring temperature, and preheating the compressor by heating the compressor coil.
The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program of initializing at least the following method steps when executed on a data processing device:
step S101, obtaining the shutdown time of a compressor under a low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature;
step S102, determining whether to start a compressor coil for preheating according to the shutdown time and the exhaust temperature;
and step S103, under the condition that the preheating of the compressor coil is started, determining the heating power of the compressor coil according to the outer ring temperature, and preheating the compressor by heating the compressor coil.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
Examples
As shown in the flow chart of the preheating control of the compressor in fig. 3, in this embodiment, the shutdown time is set to 10min, the first temperature is set to-5 ℃, the second temperature is set to-5 ℃, the third temperature is set to-10 ℃, the fourth temperature is set to-15 ℃, the fifth temperature is set to-2 ℃, the first heating power is set to 20W, the second heating power is set to 25W, and the third heating power is set to 30W, and the specific steps are as follows:
and after the compressor is stopped for 10min, under the condition that the exhaust temperature is less than or equal to the first temperature, the preheating of the compressor coil is determined to be started. Entering preheating control:
(1) if the outer ring temperature (the temperature of the external environment) is greater than the third temperature and less than or equal to the second temperature, preheating and starting a compressor coil, and using first heating power;
(2) if the temperature of the outer ring is higher than the fourth temperature and lower than or equal to the third temperature, preheating and starting a compressor coil, and using second heating power;
(3) if the temperature of the outer ring is lower than the fourth temperature, preheating and starting a compressor coil, and using third heating power at the moment;
(4) if the outer ring temperature is higher than the second temperature and lower than a fifth temperature, controlling the heating power to keep unchanged;
(5) and if the temperature of the outer ring is greater than or equal to the fifth temperature, stopping preheating the compressor.
The preset value is set to be 2 ℃, so as to avoid interval fluctuation, namely after the outer ring is confirmed, the outer ring interval is judged again only when the interval fluctuates by more than +/-2 ℃, and the heating power is determined again. For example, when the outer ring temperature is-10 ℃, the second heating power is selected as the heating power, if the outer ring temperature is increased by 1 ℃, namely the outer ring temperature is changed to-9 ℃, if the fluctuation limit is not set, the heating power needs to be switched from the second heating power to the first heating power immediately, and if the temperature detection is not accurate enough, the switching of the heating power needs to be carried out frequently, which is not beneficial to the protection of the heating circuit, and the control precision does not meet the actual requirement.
And stopping preheating the compressor when the exhaust temperature is greater than zero DEG C during the coil preheating period, starting a normal operation state, and after stopping, if the exhaust temperature is less than or equal to the first temperature and the condition that the outdoor environment temperature enters the self-preheating control condition of the compressor coil is met, entering the self-preheating control of the compressor coil again.
This scheme is in order to solve the preheating scheme preheating time of compressor among the prior art not intelligent under outdoor microthermal condition, and the problem that the energy consumption is big can get rid of the electric heating tape simultaneously, preheats through several variable parameter intelligence judgments of outer loop temperature and exhaust temperature, down time and opens and close to the preheating scheme of compressor among the solution prior art lasts the heating and leads to the big problem of power consumption.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) in the preheating control method of the compressor, firstly, the shutdown time of the compressor under a low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature are obtained; then, according to the stop time and the exhaust temperature, whether to start the preheating of the compressor coil is determined; finally, confirm to open the condition that above-mentioned compressor coil preheats, confirm the heating power of compressor coil according to above-mentioned outer loop temperature, realize preheating above-mentioned compressor through heating above-mentioned compressor coil, preheating time is not intelligent in order to solve the preheating scheme preheating time of compressor among the prior art under the low temperature condition outdoors, the problem that the energy consumption is big, can take away the electric heating tape simultaneously, through outer loop temperature and exhaust temperature, several variable parameter intelligence judgments of down time preheat and open and close, in order to solve the problem that the preheating scheme continuous heating of compressor among the prior art leads to power consumption big.
2) In the compressor preheating device, the obtaining unit obtains the shutdown time of the compressor under the low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature; the first determining unit determines whether to start preheating of a compressor coil according to the shutdown time and the exhaust temperature; the second confirms that the unit is opening above-mentioned compressor coil and is preheating under the circumstances in the affirmation, confirm the heating power of compressor coil according to above-mentioned outer loop temperature, realize preheating above-mentioned compressor through heating above-mentioned compressor coil, preheating time is not intelligent with the preheating scheme who solves compressor among the prior art under the low temperature condition outdoors, the problem that the energy consumption is big, can take away the electric heating tape simultaneously, through outer loop temperature and exhaust temperature, several variable parameter intelligence judgments of down time preheat and open and close, in order to solve among the prior art preheating scheme of compressor and continuously heat and lead to the big problem of power consumption.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. A compressor warm-up control method, comprising:
obtaining the shutdown time of a compressor under a low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature;
determining whether to start preheating of a compressor coil according to the shutdown time and the exhaust temperature;
and under the condition that the preheating of the compressor coil is started, determining the heating power of the compressor coil according to the outer ring temperature, and preheating the compressor by heating the compressor coil.
2. The method of claim 1, wherein determining whether to turn on compressor coil preheating based on the downtime and the discharge temperature comprises:
and determining to start the preheating of the compressor coil under the condition that the shutdown time is more than the preset time and the exhaust temperature is less than or equal to a first temperature.
3. The method of claim 1, wherein determining a heating power based on the outer loop temperature in the event that it is determined to turn on the compressor coil preheating comprises:
determining the heating power to be first heating power under the condition that the outer ring temperature is greater than a third temperature and less than or equal to a second temperature, wherein the third temperature is less than the second temperature;
determining the heating power to be second heating power under the condition that the outer ring temperature is greater than a fourth temperature and less than or equal to a third temperature, wherein the fourth temperature is less than the third temperature;
and under the condition that the outer ring temperature is lower than a fourth temperature, determining the heating power as a third heating power, wherein the first heating power is lower than the second heating power, and the second heating power is lower than the third heating power.
4. The method of claim 3, further comprising:
and in the process of preheating the compressor, under the condition that the temperature of the outer ring is higher than the second temperature and lower than a fifth temperature, controlling the heating power to be kept unchanged, wherein the second temperature is lower than the fifth temperature.
5. The method of claim 4, further comprising:
and in the process of preheating the compressor, stopping preheating the compressor under the condition that the temperature of the outer ring is greater than or equal to the fifth temperature.
6. The method of claim 1, further comprising:
in the process of preheating the compressor, the preheating of the compressor is stopped when the exhaust temperature is greater than zero degrees centigrade.
7. The method of claim 1, further comprising:
and in the process of preheating the compressor, under the condition that the fluctuation value of the outer ring temperature is greater than a preset value, the heating power is determined again, wherein the fluctuation value is the obtained difference value of the two adjacent outer ring temperatures.
8. The method of claim 1, further comprising:
and in the process of preheating the compressor, if fault protection occurs, the preheating of the compressor is stopped.
9. A compressor warm-up control apparatus, comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the shutdown time of a compressor under a low-temperature working condition, the exhaust temperature of the compressor and the outer ring temperature;
the first determining unit is used for determining whether to start preheating of a compressor coil according to the shutdown time and the exhaust temperature;
and the second determining unit is used for determining the heating power of the compressor coil according to the outer ring temperature under the condition of determining to start the preheating of the compressor coil, and preheating the compressor by heating the compressor coil.
10. An air conditioner, comprising: a compressor, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing the method of any of claims 1-8.
11. A computer-readable storage medium, comprising a stored program, wherein the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method of any one of claims 1 to 8.
12. A processor, characterized in that the processor is configured to run a program, wherein the program when running performs the method of any of claims 1 to 8.
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