CN113915113A - Delayed start control method, device and equipment of compressor and temperature regulation system - Google Patents
Delayed start control method, device and equipment of compressor and temperature regulation system Download PDFInfo
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- CN113915113A CN113915113A CN202111117183.1A CN202111117183A CN113915113A CN 113915113 A CN113915113 A CN 113915113A CN 202111117183 A CN202111117183 A CN 202111117183A CN 113915113 A CN113915113 A CN 113915113A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of compressors, in particular to a delayed start control method, a delayed start control device, delayed start control equipment and a temperature regulation system of a compressor. The method comprises the steps of obtaining the running state of the compressor, determining the standard starting pressure of the compressor corresponding to the running state, controlling the compressor to start if the running pressure of the compressor is detected to be reduced to the standard starting pressure, namely determining whether the compressor is started or not according to the actual running state of the compressor, improving the starting success rate and effectively improving the reliability of the temperature adjusting system.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a delayed start control method, a delayed start control device, delayed start control equipment and a temperature regulation system of a compressor.
Background
A compressor is a device for converting low-pressure gas into high-pressure gas, and is widely applied to temperature regulation systems such as refrigerators and air conditioners. In the actual use process of the compressor, in order to avoid the starting jump stage of the compressor caused by the fact that the starting torque of the compressor is smaller than the system resistance, the delayed starting of the compressor is set. In the prior art, the delayed start time of the compressor is fixed. For example, the delayed start time of some compressors is set to 8 minutes.
However, the compressor may face different working conditions during operation, and the setting of the fixed delayed start time may not satisfy all the working conditions, and the delayed start time may be too long or too short. If the delayed start time is too long, the effect of temperature adjustment is affected, and if the delayed start time is too short, the start-up skip of the compressor may be caused, and the reliability of the temperature adjustment system is reduced.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method, an apparatus, a device and a temperature adjustment system for controlling delayed start of a compressor, so as to overcome the problems that the current fixed delayed start time cannot meet all working conditions, and the reliability of the temperature adjustment system is low.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a delayed start control method of a compressor, including:
acquiring the running state of a compressor;
determining a standard starting pressure of the compressor corresponding to the operation state;
and if the operating pressure of the compressor is detected to be reduced to the standard starting pressure, controlling the compressor to start.
Further, the method for controlling delayed start of the compressor described above, before controlling the start of the compressor if it is detected that the operating pressure of the compressor is reduced to the standard start pressure, further includes:
and detecting the pressure difference between the high-pressure side of the compressor and the low-pressure side of the compressor, and taking the pressure difference as the operating pressure.
Further, in the delayed start control method of the compressor, the operation state of the compressor includes information of the operation level of the compressor and/or information of the temperature rise of the compressor;
the determining a standard starting pressure of the compressor corresponding to the operation state includes:
determining the standard starting pressure corresponding to the working grade information and/or the temperature rise information;
under the condition that the temperature rise information is the same, the higher the working grade information is, the higher the standard starting pressure is; and under the condition that the working grade information is the same, the higher the temperature rise information is, the lower the standard starting pressure is.
Further, the method for controlling delayed start of the compressor described above, before controlling the start of the compressor if it is detected that the operating pressure of the compressor is reduced to the standard start pressure, further includes:
detecting whether the current starting voltage is in a preset stable interval or not;
if the current starting voltage is not in a preset stable interval, correcting the standard starting pressure by using a preset correction coefficient to obtain a corrected standard starting pressure;
if the operating pressure of the compressor is detected to be reduced to the standard starting pressure, the compressor is controlled to start, and the method comprises the following steps:
and if the operating pressure of the compressor is detected to be reduced to the corrected standard starting pressure, controlling the compressor to start.
Further, in the delayed start control method of the compressor, the calculation formula of the correction coefficient is as follows:
K＝U2/Uforehead (forehead) 2
Wherein U represents an actual starting voltage of the compressor, UForehead (forehead)Represents a rated starting voltage of the compressor, and K represents the correction coefficient.
Further, in the delayed start control method of a compressor, the correcting the standard start pressure by using a preset correction coefficient to obtain a corrected standard start pressure includes:
and acquiring the product of the correction coefficient and the standard starting pressure, and taking the product of the correction coefficient and the standard starting pressure as the corrected standard starting pressure.
In another aspect, the present invention provides a delayed start control apparatus of a compressor, including:
the acquisition module is used for acquiring the running state of the compressor;
the determining module is used for determining the standard starting pressure of the compressor corresponding to the running state;
and the control module is used for controlling the compressor to start if the operation pressure of the compressor is detected to be reduced to the standard starting pressure.
In another aspect, the present invention provides a delayed start control apparatus for a compressor, including a processor and a memory, the processor being connected to the memory:
the processor is used for calling and executing the program stored in the memory;
the memory is used for storing the program, and the program is at least used for executing the delayed start control method of the compressor.
In another aspect, the present invention provides a temperature regulation system comprising the delayed activation control apparatus described above.
Further, the temperature adjusting system further comprises a compressor, a first pressure sensor arranged on a high-pressure side of the compressor, and a second pressure sensor arranged on a low-pressure side of the compressor;
and the first pressure sensor and the second pressure sensor are electrically connected with the delayed starting control equipment.
Further, the temperature regulating system further comprises a pressure reducing device;
the area between the output end of the compressor and the input end of the pressure reduction device is the high-pressure side;
the area between the output of the pressure reducing device and the input of the compressor is the low pressure side.
Further, the temperature adjusting system comprises a refrigerator or an air conditioner.
The method comprises the steps of obtaining the running state of the compressor, determining the standard starting pressure of the compressor corresponding to the running state, controlling the starting of the compressor if the running pressure of the compressor is detected to be reduced to the standard starting pressure, namely determining whether the compressor is started or not according to the actual running state of the compressor, improving the starting success rate and effectively improving the reliability of the temperature regulation system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of one embodiment of a delayed start control method for a compressor according to the present invention;
FIG. 2 is a schematic structural diagram of a delayed start control apparatus for a compressor according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of a delayed start control apparatus for a compressor according to the present invention;
FIG. 4 is a block diagram provided by one embodiment of a temperature regulation system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Examples
Fig. 1 is a flowchart of a delayed start control method of a compressor according to an embodiment of the present invention. As shown in fig. 1, the method of the present embodiment may include the following steps:
and S11, acquiring the running state of the compressor.
The operation state of the compressor may be detected after the compressor is stopped.
In some alternative embodiments, the operating state of the compressor includes information on an operation level of the compressor. If in the refrigerator system, the working grade information of the compressor generally comprises three grades, if the refrigerator has a freezing requirement and a refrigerating requirement, the working grade information of the compressor is the highest, if the refrigerator has only the freezing requirement, the working grade information of the compressor is medium, and if the refrigerator has only the refrigerating requirement, the working grade information of the compressor is the lowest. If the working level information of the compressor corresponds to the gear of the air conditioner in the air conditioning system, the working level information of the compressor corresponding to the highest refrigerating or heating gear of the air conditioner is the highest, the working level information of the compressor corresponding to the medium refrigerating or heating gear of the air conditioner is the medium, and the working level information of the compressor corresponding to the lowest refrigerating or heating gear of the air conditioner is the lowest. In other alternative embodiments, the operating condition of the compressor may further include temperature rise information of the compressor. The temperature rise information of the compressor in this embodiment mainly refers to the temperature rise of the motor in the compressor, that is, the temperature of the motor in the compressor is higher than the ambient temperature. In other alternative embodiments, the operation state of the compressor may further include both the operation level information of the compressor and the temperature rise information of the compressor.
And S12, determining the standard starting pressure of the compressor corresponding to the running state.
In this embodiment, the compressor may be associated with different standard starting pressures in different operating states in advance. For example, a database may be provided in which, when the operating state of the compressor is acquired, the standard starting pressure corresponding to the operating state is determined.
In some alternative embodiments, if the operation state of the compressor includes the operation level information of the compressor, the standard starting pressure of the compressor corresponding to the operation level information may be determined.
If other influence factors are not considered, generally, the higher the working grade information of the compressor is, the higher the standard starting pressure is correspondingly set. When the compressor is just stopped, the system resistance is large, the system resistance is gradually reduced along with the increase of the stop time of the compressor, and the probability of the stage jump of the start of the compressor is also gradually reduced. However, the compressor mainly works by compressing a temperature adjusting medium, such as freon, to control the temperature. If the compressor is shut down for too long a period of time in order to wait for the system resistance to decrease, the operating state of the system in which the compressor is located may be affected, for example, by an increase in the temperature in the refrigerator compartment. Therefore, in the present embodiment, the standard starting pressure of the corresponding compressor is determined according to the operation level information. That is, the higher the working grade information of the compressor is, the higher the corresponding set standard starting pressure is, the higher the success rate of the starting of the compressor can be improved under the condition that the normal work of the compressor is not influenced.
Taking a refrigerator as an example, if the refrigerator has a freezing requirement and a refrigerating requirement, the working grade information of the compressor is the highest, and in order to not influence the normal refrigerating work of the refrigerator, the stop time of the compressor can be allowed to be the shortest, so that the corresponding standard starting pressure is the highest; if the refrigerator only has a refrigeration requirement, the working grade information of the compressor is moderate, and in order to not influence the normal refrigeration work of the refrigerator, the stop time of the compressor can be allowed to be properly prolonged, so that the corresponding standard starting pressure is moderate; if the refrigerator only has refrigeration requirements, the working grade information of the compressor is the lowest, and the compressor can be allowed to stop for the longest time under the condition that the normal refrigeration work of the refrigerator is not influenced, so that the corresponding standard starting pressure is the smallest. If the compressor is applied to the air conditioning system, the higher the working grade information of the compressor is, the higher the corresponding standard starting pressure is, and details are not repeated here.
According to the arrangement, the corresponding standard starting pressure can be determined according to the working grade information of the compressor under the condition that the normal work of the system where the compressor is located is not influenced, the starting pressure of the compressor is reduced as much as possible, the instantaneous energy consumption of the compressor during starting is reduced, the success rate of starting the compressor is improved, the service life of the compressor is prolonged, and the reliability of the system where the compressor is located is effectively improved.
It should be noted that the standard starting pressure of the compressor corresponding to the compressor working level information may be set according to the actual working performance and parameters of the compressor, and this embodiment is not limited.
In some alternative embodiments, if the operating state of the compressor includes the temperature rise information of the compressor, the standard starting pressure of the compressor corresponding to the temperature rise information of the compressor may be determined.
If other influence factors are not considered, generally, the higher the temperature rise information of the compressor is, the lower the standard starting pressure is correspondingly set. During the operation of the compressor, the temperature of the motor of the compressor is increased. The temperature rise of the motor can reduce the starting torque of the compressor, namely the starting power of the compressor. To avoid compressor startup skip, it is desirable to extend the compressor shutdown time to further reduce system drag. The higher the temperature rise of the motor is, the lower the starting torque of the compressor is, and the lower the standard starting pressure of the compressor is correspondingly arranged, so that the starting success rate of the compressor can be improved.
In some optional embodiments, if the operation state of the compressor includes the operation level information of the compressor and the temperature rise information of the compressor, it is required to determine the standard starting pressure corresponding to both the operation level information of the compressor and the temperature rise information of the compressor.
Specifically, the information of the operating level of the compressor and the information of the temperature rise of the compressor can be both used as the operating state of the compressor. The influence of the temperature rise of the motor is reduced under the condition that the normal work of the compressor is not influenced, and the starting success rate of the compressor is further improved.
The temperature rise information of the compressor can be divided into a plurality of intervals according to actual conditions, for example, the temperature rise of a motor in the compressor is smaller than 30 ℃ and can be used as a first interval, the temperature rise of the motor in the compressor is between 30 ℃ and 60 ℃ and can be used as a second interval, the temperature rise of the motor in the compressor is between 60 ℃ and 90 ℃ and can be used as a third interval, and the temperature rise of the motor in the compressor is between 90 ℃ and 120 ℃ and can be used as a fourth interval. The temperatures of the first interval, the second interval, the third interval and the fourth interval are gradually increased, and the corresponding standard starting pressures are also gradually reduced.
In some alternative embodiments, table 1 is a standard starting pressure look-up table. Wherein, the low level, the middle level and the high level represent the working grade information of the compressor, Δ T is the temperature rise of the motor in the compressor, Δ P11- Δ P43 is the corresponding standard starting pressure, and the values of Δ P11- Δ P43 can be set according to the actual situation, for example, Δ P11 is 0.15MPa, Δ P12 is 0.2MPa, and Δ P13 is 0.25MPa, which is not limited in this embodiment. If the working grade information of the compressor is low grade and the temperature of the motor in the compressor is 70 ℃, the standard starting pressure is delta P21.
TABLE 1
In Table 1, DeltaP 11 < DeltaP 12 < DeltaP 13, <DeltaP 21 < DeltaP 22 < DeltaP 23, <DeltaP 31 < DeltaP 32 < DeltaP 33, <DeltaP 41 < DeltaP412 < DeltaP 43; Δ P11 > (Δ P21 >) - Δ P31 > - Δ P41, (- Δ P12 >) - Δ P22 > - Δ P32 > - Δ P42, (- Δ P13 >) - Δ P23 > - Δ P33 > - Δ P43. Table 1 is merely an example for explaining the technical means of the present application, and is not limitative. Other temperature intervals can be set according to actual conditions, and more or less work level information can also be set, which is not limited in this embodiment.
And S13, if the operation pressure of the compressor is detected to be reduced to the standard starting pressure, controlling the compressor to start.
The operating pressure of the compressor is sensed and the compressor can be controlled to start if the operating pressure of the compressor is sensed to be reduced to a standard starting pressure.
In some alternative embodiments, the operating pressure of the compressor may be detected by: a pressure difference between a high pressure side of the compressor and a low pressure side of the compressor is detected, and the pressure difference is used as an operating pressure.
Specifically, the high-side pressure of the compressor and the low-side pressure of the compressor may be acquired, the pressure difference between the high-side pressure and the low-side pressure may be calculated, and then the pressure difference may be used as the operating pressure. When the compressor is in use, the pressure reduction device is matched with the compressor, and for example, a capillary tube can be used as the pressure reduction device. The high pressure side of the compressor generally refers to the area between the output of the compressor and the input of the pressure reducing device, and the low pressure side of the compressor generally refers to the area between the output of the pressure reducing device and the input of the compressor. Thus, two pressure sensors may be provided, one pressure sensor being provided between the output of the compressor and the input of the pressure reducing device to detect the high side pressure of the compressor, the other pressure sensor being provided between the output of the pressure reducing device and the input of the compressor to detect the low side pressure of the compressor.
The delayed starting control method of the compressor comprises the steps of obtaining the running state of the compressor, determining the standard starting pressure of the compressor corresponding to the running state, controlling the compressor to start if the running pressure of the compressor is detected to be reduced to the standard starting pressure, namely determining whether the compressor is started according to the actual running state of the compressor, improving the starting success rate and effectively improving the reliability of a temperature adjusting system.
In some optional embodiments, before the step of the above embodiments, if it is detected that the operating pressure of the compressor is reduced to the standard starting pressure, the method further comprises the following steps:
detecting whether the current starting voltage is in a preset stable interval or not;
if the current starting voltage is not in the preset stable interval, correcting the standard starting pressure by using a preset correction coefficient to obtain the corrected standard starting pressure;
correspondingly, if the operating pressure of the compressor is detected to be reduced to the standard starting pressure, the compressor is controlled to start, and the method comprises the following steps:
and if the running pressure of the compressor is detected to be reduced to the corrected standard starting pressure, controlling the compressor to start.
Specifically, the starting voltage of the compressor is unstable, and the starting torque of the compressor is also affected. Specifically, in this embodiment, if it is detected that the current starting voltage is not in the preset stable interval, the preset correction coefficient is used to correct the standard starting pressure to obtain the corrected standard starting pressure, so that if it is detected that the operating pressure of the compressor is reduced to the corrected standard starting pressure, the compressor is controlled to start, and the problem of failed start of the compressor caused by unstable voltage is avoided. The stable interval may be set according to actual conditions, and this embodiment is not limited.
Wherein, the calculation formula of the correction coefficient is as follows:
K＝U2/Uforehead (forehead) 2
Wherein U represents the actual starting voltage of the compressor, UForehead (forehead)Which indicates the rated starting voltage of the compressor, and K indicates a correction coefficient. The rated starting voltage of the compressor is set by a factory manufacturer, and the embodiment is not limited. The compressor is generally applied to an air conditioning system or a refrigerator system, and has a rated voltage of 220V.
Specifically, when the starting voltage of the compressor is unstable and the compressor is started, the corrected standard starting pressure should satisfy:
△Pfruit of Chinese wolfberry≤K×△P
Wherein Δ P is the corrected standard starting pressure, Δ PFruit of Chinese wolfberryIs the standard starting pressure before correction.
In this embodiment, the product of the correction coefficient and the standard starting pressure may be obtained, and the product of the correction coefficient and the standard starting pressure may be used as the corrected standard starting pressure.
Based on one general inventive concept, the present embodiment also provides a delayed start control apparatus of a compressor, for implementing the above method embodiments. Fig. 2 is a schematic structural diagram of a delayed start control apparatus for a compressor according to an embodiment of the present invention. As shown in fig. 2, the apparatus of the present embodiment includes:
an obtaining module 21, configured to obtain an operating state of the compressor;
a determination module 22 for determining a standard starting pressure of the compressor corresponding to the operation state;
and the control module 23 is used for controlling the compressor to start if the operation pressure of the compressor is detected to be reduced to the standard starting pressure.
In some optional embodiments, the system further comprises a detection module;
and if the operating pressure of the compressor is detected to be reduced to the standard starting pressure, before the compressor is controlled to start, the detection module is used for detecting the pressure difference between the high-pressure side of the compressor and the low-pressure side of the compressor, and the pressure difference is used as the operating pressure.
In some optional embodiments, the operation state of the compressor includes information of an operation level of the compressor and/or information of a temperature rise of the compressor;
the determining module 22 is specifically configured to determine a standard starting pressure corresponding to the working level information and/or the temperature rise information;
under the condition that the temperature rise information is the same, the higher the working grade information is, the higher the standard starting pressure is; under the condition that the working grade information is the same, the higher the temperature rise information is, the lower the standard starting pressure is.
In some optional embodiments, the system further comprises a correction module;
if the running pressure of the compressor is detected to be reduced to the standard starting pressure, before the compressor is controlled to be started, a correction module is used for detecting whether the current starting voltage is in a preset stable interval or not; if the current starting voltage is not in the preset stable interval, correcting the standard starting pressure by using a preset correction coefficient to obtain the corrected standard starting pressure;
correspondingly, the control module 23 is specifically configured to control the compressor to start if it is detected that the operating pressure of the compressor is reduced to the corrected standard starting pressure.
In some alternative embodiments, the formula for calculating the correction factor is:
K＝U2/Uforehead (forehead) 2
Wherein U represents the actual starting voltage of the compressor, UForehead (forehead)Which indicates the rated starting voltage of the compressor, and K indicates a correction coefficient.
In some optional embodiments, the correction module is specifically configured to obtain a product of the correction coefficient and the standard starting pressure, and use the product of the correction coefficient and the standard starting pressure as the corrected standard starting pressure.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Based on one general inventive concept, the present invention also provides a delayed start control apparatus of a compressor for implementing the above method embodiment. Fig. 3 is a schematic structural view provided by an embodiment of a delayed start control apparatus of a compressor of the present invention.
As shown in fig. 3, the delayed start control apparatus of the compressor of the present embodiment includes a processor 31 and a memory 32, and the processor 31 is connected to the memory 32. Wherein, the processor 31 is used for calling and executing the program stored in the memory 32; the memory 32 is used to store a program for executing at least the delayed start control method of the compressor in the above embodiment.
Based on one general inventive concept, the present invention also provides a temperature adjustment system including the delayed start control apparatus of the above embodiment.
In some alternative embodiments, the temperature regulation system of the present embodiment includes a compressor, a first pressure sensor disposed on a high pressure side of the compressor, and a second pressure sensor disposed on a low pressure side of the compressor; the first pressure sensor and the second pressure sensor are both electrically connected with the delayed start control device.
The first pressure sensor is used for detecting the pressure of the high-pressure side of the compressor, and the second pressure sensor is used for detecting the pressure of the low-pressure side of the compressor.
In some optional embodiments, the temperature adjustment system of the present embodiment further includes a voltage reduction device. The first pressure sensor may be disposed between the output end of the compressor and the input end of the pressure reduction device; the area between the output end of the pressure reducing device and the input end of the compressor is a low pressure side, and the second pressure sensor may be disposed between the output end of the pressure reducing device and the input end of the compressor.
In some alternative embodiments, the temperature regulation system comprises a refrigerator or an air conditioner.
The present embodiment takes a refrigerator as an example for further explanation. FIG. 4 is a block diagram provided by one embodiment of a temperature regulation system of the present invention. As shown in fig. 4, the refrigerator includes a compressor 41, a condensation preventing pipe 42, a condenser 43, a dry filter 44, a pressure reducing device 45, and an evaporator 46. Wherein the pressure reduction device 45 is a capillary tube.
The compressor 41 compresses a low-pressure gas sucked therein into a high-pressure gas to be discharged, and a high-pressure end (the compressor 41 → the condensation preventing pipe 42 → the condenser 43 → the filter drier 44 → the pressure reducing device 45) and a low-pressure end (the pressure reducing device 45 → the evaporator 46 → the compressor 41) are formed in the refrigerating system of the refrigerator, and the high-pressure end and the low-pressure end cannot be balanced immediately after the compressor is stopped, so that there is resistance to the next start of the compressor.
In fig. 4, the compressor 41 → the condensation preventing pipe 42 → the condenser 43 → the filter drier 44 → the pressure reducing device 45 constitutes a high pressure side, and the first pressure sensor 47 may be provided at any position between the compressor 41, the condensation preventing pipe 42, the condenser 43, the filter drier 44 and the pressure reducing device 45; the pressure reducing device 45 → the evaporator 46 → the compressor 41 constitutes a low pressure side, and the second pressure sensor 48 may be provided at any position between the pressure reducing device 45, the evaporator 46 and the compressor 41. In the embodiment shown in fig. 4, a first pressure sensor 47 is arranged between the condenser and the filter dryer, and a second pressure sensor 48 is arranged between the evaporator 46 and the compressor 41.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. A delayed start control method of a compressor, comprising:
acquiring the running state of a compressor;
determining a standard starting pressure of the compressor corresponding to the operation state;
and if the operating pressure of the compressor is detected to be reduced to the standard starting pressure, controlling the compressor to start.
2. The delayed start control method of a compressor according to claim 1, wherein before controlling the start of the compressor if it is detected that the operating pressure of the compressor is reduced to the standard start pressure, further comprising:
and detecting the pressure difference between the high-pressure side of the compressor and the low-pressure side of the compressor, and taking the pressure difference as the operating pressure.
3. The delayed start control method of a compressor according to claim 1, wherein the operation state of the compressor includes an operation level information of the compressor and/or a temperature rise information of the compressor;
the determining a standard starting pressure of the compressor corresponding to the operation state includes:
determining the standard starting pressure corresponding to the working grade information and/or the temperature rise information;
under the condition that the temperature rise information is the same, the higher the working grade information is, the higher the standard starting pressure is; and under the condition that the working grade information is the same, the higher the temperature rise information is, the lower the standard starting pressure is.
4. The delayed start control method of a compressor according to claim 1, wherein before controlling the start of the compressor if it is detected that the operating pressure of the compressor is reduced to the standard start pressure, further comprising:
detecting whether the current starting voltage is in a preset stable interval or not;
if the current starting voltage is not in a preset stable interval, correcting the standard starting pressure by using a preset correction coefficient to obtain a corrected standard starting pressure;
if the operating pressure of the compressor is detected to be reduced to the standard starting pressure, the compressor is controlled to start, and the method comprises the following steps:
and if the operating pressure of the compressor is detected to be reduced to the corrected standard starting pressure, controlling the compressor to start.
5. The delayed start control method of a compressor according to claim 4, wherein the correction coefficient is calculated by the formula:
K＝U2/Uforehead (forehead) 2
Wherein U represents an actual starting voltage of the compressor, UForehead (forehead)Represents a rated starting voltage of the compressor, and K represents the correction coefficient.
6. The delayed start control method of a compressor according to claim 4, wherein said correcting said standard starting pressure by using a preset correction coefficient to obtain a corrected standard starting pressure comprises:
and acquiring the product of the correction coefficient and the standard starting pressure, and taking the product of the correction coefficient and the standard starting pressure as the corrected standard starting pressure.
7. A delayed start control apparatus of a compressor, comprising:
the acquisition module is used for acquiring the running state of the compressor;
the determining module is used for determining the standard starting pressure of the compressor corresponding to the running state;
and the control module is used for controlling the compressor to start if the operation pressure of the compressor is detected to be reduced to the standard starting pressure.
8. A delayed start control apparatus for a compressor, comprising a processor and a memory, the processor being coupled to the memory:
the processor is used for calling and executing the program stored in the memory;
the memory for storing the program for executing at least the delayed start control method of the compressor of any one of claims 1 to 6.
9. A temperature adjustment system characterized by comprising the delayed start control apparatus of claim 8.
10. The system of claim 9, further comprising a compressor, a first pressure sensor disposed on a high pressure side of the compressor, and a second pressure sensor disposed on a low pressure side of the compressor;
and the first pressure sensor and the second pressure sensor are electrically connected with the delayed starting control equipment.
11. The temperature regulation system of claim 10, further comprising a pressure reduction device;
the area between the output end of the compressor and the input end of the pressure reduction device is the high-pressure side;
the area between the output of the pressure reducing device and the input of the compressor is the low pressure side.
12. The system of claim 9, wherein the system comprises a refrigerator or an air conditioner.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111117183.1A CN113915113A (en) | 2021-09-23 | 2021-09-23 | Delayed start control method, device and equipment of compressor and temperature regulation system |
| CN202210263455.7A CN115929605A (en) | 2021-09-23 | 2022-03-17 | Delayed start control method, device and equipment of compressor and temperature regulation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111117183.1A CN113915113A (en) | 2021-09-23 | 2021-09-23 | Delayed start control method, device and equipment of compressor and temperature regulation system |
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| CN202111117183.1A Pending CN113915113A (en) | 2021-09-23 | 2021-09-23 | Delayed start control method, device and equipment of compressor and temperature regulation system |
| CN202210263455.7A Pending CN115929605A (en) | 2021-09-23 | 2022-03-17 | Delayed start control method, device and equipment of compressor and temperature regulation system |
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| CN202210263455.7A Pending CN115929605A (en) | 2021-09-23 | 2022-03-17 | Delayed start control method, device and equipment of compressor and temperature regulation system |
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