CN115235045A

CN115235045A - Defrosting control parameter adjusting method and device, computer equipment and storage medium

Info

Publication number: CN115235045A
Application number: CN202210899257.XA
Authority: CN
Inventors: 周会芳; 谢梦华; 程琦; 周进; 钟海玲; 李顺意
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-10-25
Anticipated expiration: 2042-07-28
Also published as: CN115235045B

Abstract

The application relates to a defrosting control parameter adjusting method, a defrosting control parameter adjusting device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring defrosting working parameters, wherein the defrosting working parameters comprise at least one of working current, water melting quality or defrosting time; and when the defrosting working parameter does not meet the standard working parameter during normal defrosting, adjusting the setting parameter for starting or quitting the defrosting mode. By adopting the method, the adaptability of the unit to the working conditions can be enhanced, and the defrosting effect of the unit running defrosting mode is improved.

Description

Defrosting control parameter adjusting method and device, computer equipment and storage medium

Technical Field

The present application relates to the field of air conditioning technologies, and in particular, to a method and an apparatus for adjusting defrosting control parameters, a computer device, a storage medium, and a computer program product.

Background

When the air-cooled heat pump unit operates in a heating mode, if the humidity in the air is high, water vapor in the air can form condensed water on fins of an air conditioner external unit, and the condensed water turns into a frost layer after frosting. If not to air-cooled heat pump set defrosting and handle, along with the bodiness on frost layer, the heat exchange efficiency of unit operation can be more and more poor, reaches certain degree when the frost layer, and the outdoor chance of air conditioner is stopped up by the frost layer, leads to the unable evaporation of air conditioner outdoor built-in refrigerant, and pressure is low excessively, finally makes the unit jump the low pressure protection and leads to shutting down.

The existing common defrosting control method is reverse circulation defrosting, and the defrosting control method generally adopts a time-temperature (pressure) method, namely, the defrosting is started when the temperature of a finned tube and the interval time value between the finned tube and the previous defrosting reach a certain value. However, the factors influencing the frosting on the surface of the evaporator are many, and the control method for setting the starting point of the defrosting cycle only has the defect of poor adaptability to working conditions, so that the defrosting effect is poor.

Disclosure of Invention

In view of the foregoing, it is necessary to provide a defrosting control parameter adjusting method, device, computer apparatus, computer readable storage medium, and computer program product, which can increase adaptability of a unit to working conditions and improve defrosting effect.

In a first aspect, the present application provides a defrosting setting parameter adjusting method, including:

obtaining defrosting working parameters, wherein the defrosting working parameters comprise at least one of working current, defrosting quality or defrosting time;

and when the defrosting working parameter does not meet the standard working parameter during normal defrosting, adjusting the setting parameter for starting or exiting the defrosting mode.

In one embodiment, the defrosting operation parameter is an operation current value of a compressor when the unit operates in the defrosting mode;

when the defrosting operating parameter does not meet the standard operating parameter during normal defrosting, the setting parameter for starting or quitting the defrosting mode is adjusted, and the method comprises the following steps: comparing the running current value with a preset current threshold value, wherein the preset current threshold value is a standard working current of the compressor during normal defrosting;

and if the running current value is greater than or equal to the preset current threshold value, controlling the unit to exit the defrosting mode, and reducing the set temperature for starting the defrosting mode.

In one embodiment, the method of claim 1, the defrosting operating parameter comprises a current defrosting time period recorded after exiting the defrosting mode;

when the defrosting working parameter does not meet the standard working parameter during normal defrosting, the setting parameter for starting or exiting the defrosting mode is adjusted, and the method comprises the following steps: comparing the secondary defrosting time with a preset defrosting time, wherein the preset defrosting time is a standard defrosting time when the secondary defrosting mode is normal defrosting;

and when the defrosting time is shorter than the preset defrosting time, increasing the set temperature for exiting the defrosting mode.

In one embodiment, the method further comprises:

and when the defrosting time is longer than the preset defrosting time, reducing the set temperature of the defrosting exiting mode.

In one embodiment, the method for determining the preset defrosting time period comprises the following steps:

acquiring the defrosting quality of the previous defrosting recorded after the previous defrosting mode is exited;

calculating the ratio of the water melting quality of the previous defrosting to the preset water melting quality;

and determining the preset defrosting time according to the preset mapping relation between the ratio and the time.

In one embodiment, the defrosting operation parameter comprises the defrosting quality of the defrosting operation after the defrosting mode is exited;

when the defrosting operating parameter does not meet the standard operating parameter during normal defrosting, the setting parameter for starting or quitting the defrosting mode is adjusted, and the method comprises the following steps: comparing the water melting quality with a preset water melting quality, wherein the preset water melting quality is a standard water melting quality during normal defrosting;

and when the water melting quality is greater than the preset water melting quality, reducing the set pressure ratio of the high-pressure side and the low-pressure side of the defrosting mode.

In one embodiment, the method further comprises:

and when the water melting quality is smaller than the preset water melting quality, improving the set pressure ratio of the high-pressure side and the low-pressure side of the starting defrosting mode.

In one embodiment, the method further comprises:

acquiring the defrosting quality of the current defrosting recorded after the defrosting mode exits;

obtaining a current defrosting rate according to the ratio of the water melting quality of the current defrosting to the current defrosting time, and recording the current defrosting rate;

determining the optimal set temperature for exiting the defrosting mode according to each defrosting rate recorded after exiting the defrosting mode within a preset time period;

and updating the optimal set temperature for exiting the defrosting mode to be the set temperature for exiting the defrosting mode.

In one embodiment, the determining the optimal set temperature for exiting the defrosting mode according to the defrosting rate for the preset number of times includes:

determining the optimal defrosting rate with the largest value in the defrosting rates;

and determining the set temperature of the exiting defrosting mode corresponding to the optimal defrosting rate as the optimal set temperature of the exiting defrosting mode.

In one embodiment, the method further comprises:

obtaining heating operation parameters, wherein the heating operation parameters comprise: the tube wall temperature and the operating pressure ratio of the high-pressure side and the low-pressure side;

and if the temperature of the pipe wall is less than or equal to the set temperature of the starting defrosting mode, and the operating pressure ratio is greater than or equal to the set pressure ratio of the high-pressure side and the low-pressure side of the starting defrosting mode, operating the defrosting mode.

In one embodiment, the method further comprises:

when the pipe wall temperature is lower than the set temperature of the defrosting starting mode and the running pressure ratio is lower than the set pressure ratio, comparing the pipe wall temperature with a preset pipe wall temperature threshold value;

and if the pipe wall temperature is less than or equal to the preset pipe wall temperature threshold, operating a defrosting mode.

In a second aspect, the present application further provides a defrosting setting parameter adjusting device, which includes:

the parameter acquisition module is used for acquiring defrosting working parameters;

the adjusting module is used for adjusting the setting parameters for starting or quitting the defrosting mode when the defrosting working parameters do not meet the standard working parameters during normal defrosting; the defrosting operation parameter comprises at least one of an operation current, a defrosting quality and a defrosting time length ratio.

In a third aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

In a fourth aspect, the present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method described above.

In a fifth aspect, the present application also provides a computer program product comprising a computer program which, when executed by a processor, performs the steps of the method described above.

According to the defrosting setting parameter adjusting method, the defrosting operating parameter adjusting device, the computer equipment, the storage medium and the computer program product, the defrosting operating parameter of the unit is obtained, the defrosting operating parameter is compared with the standard operating parameter during normal defrosting, when the defrosting operating parameter does not meet the standard operating parameter during normal defrosting, the reason that the unit is in working environment or working condition at the moment is shown, if the unit is operated according to the current defrosting operating parameter, the normal defrosting effect cannot be achieved, the defrosting effect is poor, and the setting parameter of starting or quitting the defrosting mode is adjusted. By dynamically adjusting the setting parameters for starting or exiting the defrosting mode, the adaptability of the unit to the working conditions can be enhanced, and the defrosting effect of the unit in the running defrosting mode is improved.

Drawings

FIG. 1 is a schematic view of an embodiment of an air-cooled heat pump unit;

FIG. 2 is a schematic flow chart illustrating a method for adjusting defrosting setting parameters according to an embodiment;

FIG. 3 is a schematic flow chart illustrating a method for determining a preset defrosting time period according to an embodiment;

FIG. 4 is a schematic flow chart illustrating a defrosting setting parameter adjustment method according to another embodiment;

FIG. 5 is a schematic flow chart illustrating a method for adjusting defrosting setting parameters in another embodiment;

FIG. 6 is a block diagram of a defrosting setting parameter adjusting device according to an embodiment;

FIG. 7 is a diagram illustrating an internal structure of a computer device according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

In one embodiment, as shown in fig. 1, the air-cooled heat pump unit is a circulation system formed by components of an inverter compressor 101, a four-way valve 102, a finned tube heat exchanger 103, a first check valve 104, a dry filter 105, a second check valve 106, a third check valve 107, a fourth check valve 108, a fifth check valve 109, an electronic expansion valve 110, a shell and tube heat exchanger 111, and the like.

When the unit operates in a heating mode, a refrigerant flows into the shell and tube heat exchanger 111 from the variable frequency compressor 101 through the four-way valve 102, flows into the drying filter 105 through the third one-way valve 107 after heat exchange is finished, then flows into the electronic expansion valve 110, flows into the finned tube heat exchanger 103 through the fourth one-way valve 108 at a proper flow rate and superheat degree, and flows into the variable frequency compressor 101 through the four-way valve 102 after heat exchange is finished, so that heating is finished.

When the unit operates in a defrosting mode, a refrigerant circularly flows in the system under the action of the variable frequency compressor 101, a gaseous pressure-increasing and temperature-increasing process is completed in the variable frequency compressor 101, then the refrigerant flows into the finned tube heat exchanger 103 through the four-way valve 102, exchanges heat with a frost layer, is cooled and converted into a flow liquid, the flow liquid flows into the electronic expansion valve 110 through the first one-way valve 104 and the fifth one-way valve 109 after flowing into the drying filter 105 for drying, flows into the shell and tube heat exchanger 111 through the second one-way valve 106 at a proper flow rate and a proper superheat degree, is quickly subjected to heat absorption evaporation to be converted into a gaseous state again, and then flows into the variable frequency compressor 101 through the four-way valve 102 to complete defrosting.

In one embodiment, as shown in fig. 2, a defrosting setting parameter adjusting method is provided, which can be applied to the air-cooled heat pump unit shown in fig. 1. The method comprises the following steps:

step 202, obtaining defrosting operating parameters, wherein the defrosting operating parameters comprise at least one of operating current, defrosting quality and defrosting time.

The defrosting operating parameters are operating parameters related to the unit operation defrosting mode, and can reflect the operation condition of the unit operation defrosting mode. The defrosting operation parameter comprises at least one of operation current, water melting quality or defrosting time.

The working current is the working current of the compressor when the unit operates in the defrosting mode, and the working current of the compressor can reflect the condition that whether the compressor operates in an overload mode when the unit operates in the defrosting mode, so that the operation condition of the unit during the defrosting mode can be judged according to the operation condition of the compressor.

In one embodiment, the compressor is provided with a current detector, so that the working current of the compressor can be acquired in real time and sent to the controller.

And the defrosting water quality is the quality of the defrosting water collected after the defrosting layer on the finned tube is thawed when the unit operation defrosting mode is finished. The size of the quality of the melting water can reflect the frosting condition and the defrosting condition of the unit under the current environment.

In one embodiment, the finned tube heat exchanger is provided with a flow diverter, when a frost layer is thawed, the defrosting water flows into the quality detection container through the flow diverter for quality detection, after the quality detection container detects the quality of the defrosting water, the quality of the defrosting water is sent to the controller, and after the controller receives the quality of the defrosting water, a drainage instruction is generated, and the quality detection container is controlled to drain the defrosting water.

The defrosting time is the time for the unit to operate the defrosting mode after the unit operates the defrosting mode. The defrosting effect of the unit after the defrosting mode is operated can be reflected by the defrosting duration.

Specifically, the controller in the unit acquires working parameters related to the unit operation defrosting mode, including working current of a compressor of the unit when the unit operates the defrosting mode, quality of defrosting water after the unit operates the defrosting mode, or defrosting duration of the unit when the unit operates the defrosting mode.

And 204, when the defrosting working parameter does not meet the standard working parameter during normal defrosting, adjusting the setting parameter for starting or exiting the defrosting mode.

The standard working parameters are used for evaluating whether the unit defrosting mode normally operates, and whether the unit defrosting mode normally operates or not can be judged by comparing the defrosting working parameters with the standard working parameters, and whether defrosting setting parameters need to be adjusted or not. It can be understood that the standard operating parameters may be obtained by a designer according to working experience and multiple experiments, and are preset in the controller, or may be set according to an operating condition of the unit when actually operating the defrosting mode.

The setting parameters for starting or exiting the defrosting mode are judgment condition parameters for judging whether the defrosting mode is operated or not and whether the defrosting mode is exited or not. It can be understood that, if the defrosting operation parameter meets the standard operation parameter during normal defrosting, the setting parameter indicating that the current unit starts or exits the defrosting mode is matched with the operation environment of the current unit, so that a good defrosting effect can be achieved. If the defrosting operating parameter does not meet the standard operating parameter during normal defrosting, it indicates that the setting parameter of the current unit starting or exiting the defrosting mode is not matched with the operating environment and operating condition of the current unit, the defrosting mode is abnormal in operation, the defrosting effect is poor, and the setting parameter of the current starting or exiting the defrosting mode needs to be adjusted so as to meet the operating environment and operating condition of the current unit.

Specifically, the controller compares the acquired defrosting operation parameter with a standard operation parameter during normal defrosting, and if the defrosting operation parameter does not meet the standard operation parameter during normal defrosting, the controller adjusts a setting parameter for currently starting or exiting a defrosting mode.

According to the defrosting setting parameter adjusting method, defrosting working parameters of the unit are obtained, the defrosting working parameters are compared with standard working parameters during normal defrosting, when the defrosting working parameters do not meet the standard working parameters during normal defrosting, the reason that the unit is in working environment or working conditions and the like is explained, if the unit is operated according to the current defrosting working parameters, the normal defrosting effect cannot be achieved, the defrosting effect is poor, and the setting parameters for starting or quitting the defrosting mode are adjusted. By dynamically adjusting the setting parameters for starting or exiting the defrosting mode, the adaptability of the unit to the working conditions can be enhanced, and the defrosting effect of the unit in the running defrosting mode is improved.

In one embodiment, the defrosting operation parameter is an operation current value of a compressor when the unit operates in a defrosting mode. When the defrosting working parameter does not meet the standard working parameter during normal defrosting, the setting parameter for starting or exiting the defrosting mode is adjusted, and the method comprises the following steps: comparing the running current value with a preset current threshold value, wherein the preset current threshold value is a standard working current of the compressor during normal defrosting; and if the running current value is greater than or equal to the preset current threshold value, controlling the unit to exit the defrosting mode, and reducing the set temperature for starting the defrosting mode.

The preset current threshold is a standard working current of the compressor during normal defrosting, the standard working current is related to a rated current value of the compressor, specifically, a limit value is set for the current of the compressor to ensure that the compressor can operate under a normal load condition, and the working current of the compressor during working is not higher than the rated current value of the compressor, so that the loss of the compressor is caused. This limit value is set to the standard operating current of the compressor. The working current of the compressor during working is less than or equal to the standard working current, which indicates that the compressor normally operates, and if the working current of the compressor during working is greater than or equal to the standard working current, which indicates that the compressor is in overload operation at the moment, the compressor motor and other devices may be damaged, and rapid unloading is needed. It will be understood that the standard operating current value is also related to the power of the compressor, the higher the power, the higher the standard operating current value, for example: the standard operating current value of the inverter compressor with the nominal power of 535Kw is 320A.

If the operation current value is greater than or equal to the preset current threshold value, the compressor is indicated to be in overload operation, which is caused by the fact that the set temperature for starting the defrosting mode is higher.

And the comparison result of the tube wall temperature of the finned tube and the set temperature of the starting defrosting mode is a judgment condition for judging whether the unit needs to start the defrosting mode. And the controller compares the temperature of the tube wall of the finned tube with the set temperature of the starting defrosting mode to judge whether the unit needs to operate the defrosting mode.

Specifically, the tube wall temperature is the tube wall temperature of the finned tube. When the unit operates in the heating mode, if the thickness of the frost layer on the fin meets the condition of the operation defrosting mode, the temperature of the finned tube adjacent to the frost layer is reduced, so that the temperature of the tube wall can be compared with the set temperature of the starting defrosting mode, and if the temperature of the tube wall is less than the set temperature of the starting defrosting mode, the unit is judged to need to operate the defrosting mode at the moment.

If the set temperature of the starting defrosting mode is higher, the controller can judge that the temperature of the tube wall of the finned tube meets the condition of the starting defrosting mode even if the finned tube is not frosted or the frosting amount is very low, namely the temperature of the tube wall is lower than the set temperature of the starting defrosting mode, the unit is controlled to operate the defrosting mode, and the unit is controlled according to the frosting condition. At the moment, the finned tube heat exchanger is positioned at the high-pressure side, the fan stops running, the condensing temperature of the unit is higher due to lack of frost layer cooling, the high-pressure side pressure is increased, the current of the compressor exceeds the normal running range of the compressor, and the compressor runs in an overload mode.

When the controller determines that the compressor runs in an overload mode, in order to protect the unit from being damaged, the controller can forcibly control the unit to exit the defrosting mode, reduce the set temperature of the starting defrosting mode, control the set temperature of the starting defrosting mode within the range of the normal running defrosting mode, avoid the condition of 'no frost and defrosting' again, and protect the running reliability of the unit. It can be understood that the specific reduction value of the set temperature for starting the defrosting mode can be preset in the controller by a designer, and the set temperature for starting the defrosting mode can be reduced after the controller directly obtains the specific reduction value, and can also be obtained by calculation according to the actual working parameters of the unit.

In one embodiment, the controller controlling the unit to exit the defrosting mode comprises: and controlling the compressor to unload to a preset load quickly. Specifically, the unloading of the compressor is divided into rapid unloading and climbing unloading, and when the compressor is unloaded in a climbing mode, the unloading electromagnetic valve is electrified for a period of time and is powered off for a period of time. When the unloading is carried out quickly, the unloading electromagnetic valve is always electrified. Since the compressor is overloaded, it is necessary to unload the load to a predetermined load quickly to protect the compressor motor and other components from damage.

In one embodiment, the reducing the set temperature to initiate the defrost mode comprises: calculating according to the set temperature of the starting defrosting mode, a preset current threshold value and an operation current value to obtain the set temperature of the starting defrosting mode to be updated; and updating the set temperature of the defrosting starting mode to be updated to the set temperature of the defrosting starting mode.

Specifically, the set temperature for starting the defrosting mode is t _set The set temperature of the start defrosting mode to be updated is T _set Taking the preset current threshold value as Imax and the running current value as I as an example, the calculation formula of the start defrosting mode to be updated is as follows:

T _set ＝t _set -A(I _max -I) ² +B(I _max -I)+C

a, B and C are calculation coefficients and are preset according to engineering experience values.

In one embodiment, the defrosting operation parameter includes a current defrosting time period recorded after exiting the defrosting mode. When the defrosting operating parameter does not meet the standard operating parameter during normal defrosting, the setting parameter for starting or quitting the defrosting mode is adjusted, and the method comprises the following steps: comparing the defrosting time with a preset defrosting time, wherein the preset defrosting time is a standard defrosting time when the defrosting mode is normal; and when the defrosting time is shorter than the preset defrosting time, increasing the set temperature for exiting the defrosting mode.

The preset defrosting time is standard defrosting time when the defrosting mode is normal, the controller compares the recorded defrosting time with the preset defrosting time, and if the defrosting time is less than the preset defrosting time, the defrosting time is insufficient, which is caused by the fact that the set temperature for exiting the defrosting mode is too low.

Specifically, as the set temperature exiting the defrosting mode is too low, even if the frost layer on the fins is not completely melted, the temperature of the pipe wall is still low, the controller can also judge that the temperature of the pipe wall meets the condition of exiting the defrosting mode, namely the temperature of the pipe wall is higher than the set temperature exiting the defrosting mode, control the unit to exit the defrosting mode, and record the defrosting time.

And when the recorded time for next defrosting is compared with the preset defrosting time by the controller, if the time for next defrosting is less than the preset defrosting time, the set temperature for exiting the defrosting mode is increased, and the condition that the defrosting is not completely finished due to insufficient defrosting time is avoided.

In one embodiment, when the second defrosting period is longer than a preset defrosting period, the set temperature for exiting the defrosting mode is lowered.

If the defrosting time is longer than the preset defrosting time, the defrosting time is too long, which is caused by the fact that the set temperature of the defrosting mode is too high.

Specifically, because the set temperature exiting the defrosting mode is too high, even if the frost layer on the fins is melted, the temperature of the tube wall rises, the controller can also judge that the temperature of the tube wall does not meet the condition of exiting the defrosting mode, namely the temperature of the tube wall is lower than the set temperature exiting the defrosting mode, the controller can continue to control the unit to operate the defrosting mode until the temperature of the tube wall rises and meets the condition of exiting the defrosting mode, the controller can control the unit to exit the defrosting mode, and the defrosting time is recorded.

And when the recorded time of next defrosting is compared with the preset defrosting time by the controller, if the time of next defrosting is greater than the preset defrosting time, the set temperature for exiting the defrosting mode is reduced, so that unnecessary defrosting time is reduced, and the running efficiency of the unit is improved.

Further, as shown in fig. 3, in one embodiment, the method for determining the preset defrosting time period includes the following steps:

and step 302, recording the defrosting quality of the previous defrosting after the previous defrosting mode exits.

Specifically, the controller obtains the melting water quality recorded after the defrosting mode is exited for the previous time when the defrosting mode is operated.

And step 304, calculating the ratio of the water melting quality of the former defrosting to the preset water melting quality.

Specifically, comparing the water melting quality of the previous defrosting with the preset water melting quality, and calculating to obtain the ratio of the water melting quality of the previous defrosting to the preset water melting quality.

And step 306, determining a preset defrosting time length according to the preset mapping relation between the ratio and the time length.

The preset mapping relation is set by a designer according to engineering experience values, the one-to-one correspondence relation between the ratio of the water melting quality to the preset water melting quality and the defrosting time is set by the designer, and the preset mapping relation is stored in the controller in advance. For example, when the ratio of the melting water mass to the preset melting water mass is 100%, 75%, 50% and 25%, respectively, different preset defrosting time lengths are corresponded, and the rest of more detailed defrosting time lengths can be obtained according to an interpolation method.

Specifically, after the ratio of the water melting quality of the previous defrosting to the preset water melting quality is obtained through calculation, the controller inquires the preset mapping relation according to the ratio, determines the defrosting time corresponding to the ratio, and determines the defrosting time as the preset defrosting time of the current defrosting mode.

In the embodiment, the preset defrosting time of the current running defrosting mode is determined by using the ratio of the defrosting quality of the previous defrosting to the preset defrosting quality, the preset defrosting time can be dynamically adjusted according to the actual running condition of the unit, a data basis is provided for adjusting the set temperature exiting the defrosting mode according to the preset defrosting time, and the defrosting effect of the unit is improved.

In one embodiment, the method for adjusting the defrosting setting parameter further comprises: acquiring heating operation parameters, wherein the heating operation parameters comprise pipe wall temperature and operation pressure ratio of a high-pressure side and a low-pressure side; and if the temperature of the pipe wall is less than or equal to the set temperature of the starting defrosting mode, and the operating pressure ratio is greater than or equal to the set pressure ratio of the high-pressure side and the low-pressure side of the starting defrosting mode, operating the defrosting mode.

The temperature of the tube wall is the temperature of the tube wall of the finned tube, and specifically, when a frost layer is thick enough and a defrosting mode needs to be operated, the temperature of the finned tube next to the frost layer is reduced, so that the temperature of the tube wall can be used as a judgment condition for judging whether the unit needs to start the defrosting mode.

The operation pressure ratio of the high-pressure side and the low-pressure side is the ratio of the pressure value of the high-pressure side and the pressure value of the low-pressure side of the unit, which are acquired when the unit operates in the heating mode. Specifically, the pressure on the high-pressure side of the unit is a condensation pressure value, and the pressure on the low-pressure side of the unit is an evaporation pressure value. Because frost layer that forms will block the fin, unit high pressure side heat transfer performance reduces, and high pressure side pressure can be obviously higher than when not forming frost high pressure, and the pressure of low pressure side also can rise along with it at this moment, but the range is less, therefore the pressure ratio of high-low pressure side can increase. Therefore, the operating pressure ratio of the high-pressure side and the low-pressure side can be used as a judgment condition for judging whether the unit needs to start the defrosting mode.

The set temperature for starting the defrosting mode is a corresponding pipe wall temperature value when the frost formation on the unit fin is predicted and the frost formation amount meets the condition of operating the defrosting mode. The set pressure ratio of the high-pressure side and the low-pressure side is an operation pressure ratio corresponding to the condition that frost is predicted to be formed on the unit wing blades and the frost forming amount meets the operation defrosting mode.

Specifically, the controller compares the tube wall temperature with a set temperature at which the defrosting mode is started, and compares an operating pressure ratio of the high and low pressure sides with a set pressure ratio. If the temperature of the pipe wall is less than or equal to the set temperature of the starting defrosting mode, and the operating pressure ratio is greater than or equal to the set pressure ratio of the high-pressure side and the low-pressure side of the starting defrosting mode, it is indicated that the fins are frosted at the moment, and the frosting amount meets the condition of the operating defrosting mode, and the controller controls the unit to operate the defrosting mode.

In this embodiment, the pipe wall temperature and the operating pressure ratio of the high-low pressure side when the unit operates in the heating mode are compared with preset judgment conditions, and when the parameters of the two dimensions of the temperature and the pressure ratio meet the operating defrosting mode conditions, the unit is controlled to operate in the defrosting mode. Through judging two parameters of temperature and pressure ratio, the accuracy of the unit operation defrosting mode can be effectively improved, and unnecessary defrosting caused by the fact that the unit enters the defrosting mode by mistake due to influences of factors such as environment and the like is avoided.

In one embodiment, the defrosting operation parameter comprises the defrosting quality of the current defrosting recorded after the defrosting mode is exited; when the defrosting operating parameter does not meet the standard operating parameter during normal defrosting, the setting parameter for starting or quitting the defrosting mode is adjusted, and the method comprises the following steps: comparing the quality of the melting water with the preset quality of the melting water, wherein the preset quality of the melting water is the standard quality of the melting water during normal defrosting; and when the water melting quality is greater than the preset water melting quality, reducing the set pressure ratio of the high-pressure side and the low-pressure side of the defrosting mode.

The preset defrosting quality is standard defrosting quality when the unit normally defrosts, the controller controls the unit to operate the defrosting mode when the thickness of a frost layer is proper, and if defrosting is normally performed, the defrosting quality obtained after defrosting is certain. And determining the quality of the molten water obtained in the normal defrosting process as the preset molten water quality.

And the controller compares the quality of the melted water obtained by secondary defrosting with the preset quality of the melted water, and if the quality of the melted water obtained by secondary defrosting is greater than the preset quality of the melted water, the controller indicates that a frost layer on the fins is too thick when the controller controls the unit to defrost, namely the unit is not easy to meet the current starting defrosting setting condition, which is caused by the fact that the set pressure ratio on the high-pressure side and the low-pressure side is too high.

Specifically, since the set pressure ratio on the high-low pressure side is too high, even if the frost layer on the fins has reached a moderate thickness at which the defrosting mode can be operated, the operating pressure ratio on the high-low pressure side is increased, the controller determines that the operating pressure ratio does not satisfy the condition for starting the defrosting mode, i.e., the operating pressure ratio is greater than or equal to the set pressure ratio. The controller can not control the unit to operate the defrosting mode until the operating pressure of the high-pressure side and the low-pressure side is greater than or equal to the current overhigh set pressure, the unit can not be controlled to operate the defrosting mode, the thickness of a frost layer at the moment is too thick, and therefore the defrosting quality after defrosting is finished can be greater than the preset defrosting quality.

And when the controller compares the secondary melted water quality with the preset melted water quality and determines that the secondary melted water quality is greater than the preset melted water quality, the set pressure ratio of the high-pressure side and the low-pressure side of the defrosting mode is reduced. The pressure ratio of the high pressure side and the low pressure side of the starting defrosting mode is reduced, so that the next unit can accurately start the defrosting mode when the thickness of a frost layer is moderate, and the defrosting effect of the defrosting mode is improved.

In one embodiment, the set pressure ratio of the high and low pressure sides of the defrost mode is increased when the defrost quality is less than a preset defrost quality.

Specifically, the controller compares the quality of the melted water obtained by secondary defrosting with the preset quality of the melted water, and if the quality of the melted water obtained by secondary defrosting is smaller than the preset quality of the melted water, it indicates that when the controller controls the unit to defrost, the frost layer on the fins is thinner, that is, it is easier for the unit to meet the current starting defrosting setting condition, which is caused by the fact that the setting pressure ratio on the high-pressure side and the low-pressure side is too low.

Specifically, since the set pressure ratio of the high and low pressure sides is too low, when a small amount of frost layer is condensed on the fin, the controller may judge that the operating pressure ratio satisfies the condition for starting the defrosting mode, i.e., the operating pressure ratio is greater than or equal to the set pressure ratio, even if the operating pressure ratio of the high and low pressure sides is low. The controller controls the unit to operate a defrosting mode to defrost a thinner frost layer, and the defrosting quality after defrosting is smaller than the preset defrosting quality.

And when the controller compares the secondary water melting quality with the preset water melting quality and determines that the secondary water melting quality is less than the preset water melting quality, the set pressure ratio of the high-pressure side and the low-pressure side of the defrosting mode is increased. The set pressure ratio of the high-pressure side and the low-pressure side of the starting defrosting mode is improved, so that the next unit can accurately start the defrosting mode when the thickness of a frost layer is proper, and the defrosting effect of the defrosting mode is prompted.

In one embodiment, as shown in fig. 4, when the defrosting time period is less than the preset defrosting time period, the increasing the set temperature for exiting the defrosting mode further includes:

step 402, acquiring the defrosting quality of the current defrosting recorded after the defrosting mode exits;

specifically, after the defrosting time is shorter than the preset defrosting time and the set temperature of exiting the defrosting mode is increased, the controller obtains the defrosting water quality recorded after exiting the defrosting mode.

And step 404, obtaining the current defrosting speed according to the ratio of the water melting quality of the current defrosting to the current defrosting time, and recording the current defrosting speed.

Specifically, the controller compares the water melting quality of the current defrosting with the current defrosting time, obtains the current defrosting speed according to the ratio of the water melting quality of the current defrosting to the current defrosting time, and records the current defrosting speed.

And step 406, determining the optimal set temperature for exiting the defrosting mode according to each defrosting rate recorded after exiting the defrosting mode within a preset time period.

The preset time period is a certain period of time for which the unit is continuously used. The length of the preset time period depends on the actual situation, and may be, for example, one month, one year, or one quarter.

Specifically, the controller obtains all defrosting rates recorded in a preset time period, and determines the optimal set temperature for exiting the defrosting mode according to all defrosting rates recorded in the preset time period.

In step 408, the set temperature of the optimal defrosting mode exiting mode is updated to the set temperature of the defrosting mode exiting mode.

Specifically, the controller updates the determined optimal set temperature to the set temperature at which the current unit exits the defrosting mode. When the unit continues to operate the defrosting mode, the optimal set temperature is used as the set temperature for exiting the defrosting mode, the defrosting efficiency of the unit defrosting can be effectively improved, and the influence of insufficient heat supply on the user side during defrosting is reduced.

In one embodiment, the determining the optimal set temperature for exiting the defrosting mode according to the defrosting rate for the preset number of times comprises: determining the optimal defrosting rate with the maximum value in the defrosting rates; and determining the set temperature of the exiting defrosting mode corresponding to the optimal defrosting rate as the optimal set temperature of the exiting defrosting mode.

Specifically, after all the defrosting rates recorded in the preset time period are obtained, the controller determines the defrosting rate with the largest value as the optimal defrosting rate, and determines the set temperature of the defrosting mode exiting corresponding to the optimal defrosting rate as the optimal set temperature of the defrosting mode exiting. The defrosting mode is operated by using the set temperature which is corresponding to the optimal defrosting rate and exits from the defrosting mode, so that the defrosting rate can be always kept at a higher value, and the influence of insufficient heat supply on a user side during defrosting is reduced.

In the above embodiment, the most suitable set temperature for exiting the defrosting mode is determined according to all defrosting rates within the preset time period, and when the unit operates the defrosting mode at the optimum set temperature for exiting the defrosting mode, the situation that heating is interrupted due to defrosting, and long-time insufficient heat supply to the user side is caused can be effectively reduced.

When the unit runs, some limit working conditions are inevitably met, so that the unit cannot reach the condition of starting the defrosting mode all the time. In this regard, in one embodiment, the defrosting setting parameter adjusting method further includes:

when the pipe wall temperature is lower than the set temperature of the starting defrosting mode and the operating pressure ratio is lower than the set pressure ratio, comparing the pipe wall temperature with a preset pipe wall temperature threshold value; and if the pipe wall temperature is less than or equal to the preset pipe wall temperature threshold value, operating the defrosting mode.

When the temperature of the pipe wall is smaller than or equal to the preset pipe wall temperature threshold value, the thickness of a frost layer on the fin is moderate at the moment, and the condition of starting a defrosting mode is met. It is understood that the preset tube wall temperature threshold is set by a designer according to engineering experience.

Specifically, when the temperature of the pipe wall is lower than the set temperature of the start defrosting mode, the fins are frosted at the moment, the operating pressure ratio of the high-pressure side and the low-pressure side is lower than the set pressure ratio, the outlet water temperature required by the unit is higher at the moment, the ambient temperature is lower, the operating pressure ratio of the high-pressure side and the low-pressure side is always lower, and the condition of the start defrosting mode cannot be met, namely the operating pressure ratio of the high-pressure side and the low-pressure side is greater than or equal to the set pressure ratio. If the defrosting mode is not operated until the operating pressure ratio is greater than the set pressure ratio, the frosting amount on the fins is completely saturated at the moment. Therefore, the controller compares the acquired pipe wall temperature with a preset pipe wall temperature threshold, if the pipe wall temperature is smaller than or equal to the preset pipe wall temperature threshold, the thickness of the frost layer on the fin is moderate at the moment, and the controller controls the unit to operate in the defrosting mode.

In the embodiment, by setting the lower temperature limit value for ensuring the moderate frosting amount on the fins, when the unit cannot meet the running condition of the starting defrosting mode, the unit can be controlled to forcibly enter the defrosting mode according to the comparison result of the pipe wall temperature and the lower temperature limit value, the condition that the unit is frosted but not removed is avoided, and the heating capacity of the unit is improved.

In one embodiment, as shown in fig. 5, there is provided a defrosting setting parameter adjusting method, including the steps of:

the controller obtains the operation parameters of heating when the unit operates the heating mode, and the operation parameters of heating include: temperature t of pipe wall _w And the operating pressure ratio k on the high and low pressure sides, if the pipe wall temperature t _w Is less than or equal to the set temperature t of the starting defrosting mode _set And the operation pressure ratio k is larger than or equal to the set pressure ratio alpha of the high-low pressure side of the starting defrosting mode, and then the defrosting mode is operated.

When tube wall temperature t _w Is less than the set temperature t of the starting defrosting mode _set And when the operating pressure ratio k is less than the set pressure ratio alpha, the temperature t of the pipe wall is adjusted _w And a preset pipe wall temperature threshold value T _w Comparing; if the temperature t of the pipe wall _w Less than or equal to the preset pipe wall temperature threshold T _w The defrosting mode is operated.

After the unit operates in the defrosting mode, the controller obtains the operating current value I of the compressor when the unit operates in the defrosting mode, and the operating current value I is compared with a preset current threshold value I _max Comparing to preset current threshold I _max The standard working current of the compressor during normal defrosting is set, if the running current value I is greater than or equal to the preset current threshold value I _max If yes, the unit is controlled to exit the defrosting mode, and the set temperature t for starting the defrosting mode is reduced _out . If the running current value I is smaller than the preset current threshold value I _max And continuing to control the unit to operate the defrosting mode.

Acquiring the wall temperature t of the current finned tube in real time _w Temperature t of pipe wall _w And the set temperature t of exiting the defrosting mode _out Comparing, when the temperature t of the tube wall is _w Equal to the set temperature t of exiting defrosting mode _out And when the defrosting mode is started, the unit is controlled to stop running the defrosting mode, and the defrosting quality m and the defrosting time delta tau in the defrosting mode are recorded.

The melting water mass m in the current defrosting mode and the preset melting water mass m _max Comparing, and when the mass m of the molten water is larger than the preset mass m of the molten water _max When the defrosting mode is started, the set pressure ratio alpha of the high-low pressure side is reduced. When the melting water mass m is less than the preset melting water mass m _max When the defrosting mode is started, the set pressure ratio alpha of the high-pressure side and the low-pressure side is increased.

Acquiring the former water melting mass M in the former defrosting mode, and calculating the former water melting mass and the preset water melting mass M _max According to the ratio, searching a preset mapping relation between the ratio and the time length, and determining the preset defrosting time length delta tau of the current defrosting mode _set 。

The defrosting time length delta tau and the preset defrosting time length delta tau in the current defrosting mode are compared _set Comparing, when the defrosting time delta tau is less than the preset defrosting time delta tau _set In time, the set temperature t for exiting the defrosting mode is increased _out . When the defrosting time delta tau is larger than the preset defrosting time delta tau _set When the temperature t is set to be lower than the set temperature t for exiting the defrosting mode _out 。

When the defrosting time delta tau is less than the preset defrosting time delta tau _set Then, acquiring the defrosting quality m of the current defrosting recorded after the defrosting mode exits; obtaining a current defrosting speed m/delta tau according to the ratio of the water melting quality m of the current defrosting to the current defrosting time delta tau, and recording the current defrosting speed m/delta tau; determining the maximum optimal defrosting rate Delta tau in each defrosting rate _max (ii) a Will optimize the frost rate Δ τ _max Corresponding set temperature t for exiting defrosting mode _out Determining the optimal set temperature for exiting the defrosting mode, and updating the optimal set temperature for exiting the defrosting mode to the set temperature t for exiting the defrosting mode _out 。

According to the method in the embodiment, the set parameters at the beginning of defrosting are continuously optimized according to the real-time defrosting operating parameters in the unit operation defrosting mode, so that the unit defrosting control method can adapt to different working conditions of the heat pump unit, and the problems of no defrosting, no defrosting and low defrosting efficiency of the unit are solved.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.

Based on the same inventive concept, the embodiment of the application also provides a defrosting setting parameter adjusting device for realizing the defrosting setting parameter adjusting method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so the specific limitations in one or more embodiments of the defrosting setting parameter adjusting device provided below can be referred to the limitations on the defrosting setting parameter adjusting method in the above, and details are not repeated here.

In one embodiment, as shown in fig. 6, there is provided a defrosting setting parameter adjusting apparatus 600 including: a parameter obtaining module 601 and an adjusting module 602, wherein:

the parameter obtaining module 601 is configured to obtain defrosting operation parameters, where the defrosting operation parameters include at least one of an operating current, a defrosting quality, and a defrosting time length ratio.

The adjusting module 602 is configured to adjust a setting parameter for starting or exiting the defrosting mode when the defrosting operation parameter does not meet a standard operation parameter during normal defrosting.

The defrosting setting parameter adjusting device obtains the defrosting operating parameter of the unit, compares the defrosting operating parameter with the standard operating parameter when defrosting normally, and when the defrosting operating parameter does not meet the standard operating parameter when defrosting normally, the unit is explained to be operated because of reasons such as working environment or working conditions, if the current defrosting operating parameter is used for operation, the normal defrosting effect cannot be achieved, so that the defrosting effect is poor, and the setting parameter of the starting or quitting defrosting mode is adjusted. By dynamically adjusting the setting parameters for starting or exiting the defrosting mode, the adaptability of the unit to the working conditions can be enhanced, and the defrosting effect of the unit in the running defrosting mode is improved.

In one embodiment, the adjustment module is further configured to: comparing the running current value with a preset current threshold value, wherein the preset current threshold value is a standard working current of the compressor during normal defrosting; and if the running current value is greater than or equal to the preset current threshold value, controlling the unit to exit the defrosting mode, and reducing the set temperature for starting the defrosting mode.

In one embodiment, the adjustment module is further configured to: comparing the secondary defrosting time with a preset defrosting time, wherein the preset defrosting time is a standard defrosting time when the secondary defrosting mode is normal defrosting; and when the defrosting time is shorter than the preset defrosting time, increasing the set temperature for exiting the defrosting mode.

In one embodiment, the adjustment module is further configured to: and when the defrosting time is longer than the preset defrosting time, reducing the set temperature for exiting the defrosting mode.

In one embodiment, the defrosting setting parameter adjusting means further comprises: the defrosting time length presetting module is used for acquiring the defrosting quality of the previous defrosting recorded after the previous defrosting mode exits; calculating the ratio of the water melting quality of the former defrosting to the preset water melting quality; and determining the preset defrosting time according to the preset mapping relation between the ratio and the time.

In one embodiment, the adjustment module is further configured to: comparing the quality of the melting water with the preset quality of the melting water, wherein the preset quality of the melting water is the standard quality of the melting water during normal defrosting; and when the water melting quality is greater than the preset water melting quality, reducing the set pressure ratio of the high-pressure side and the low-pressure side of the defrosting mode.

In one embodiment, the adjustment module is further configured to: and when the water melting quality is less than the preset water melting quality, improving the set pressure ratio of the high-pressure side and the low-pressure side of the defrosting starting mode.

In one embodiment, the defrosting setting parameter adjusting means further comprises: a temperature updating module is arranged and used for acquiring the defrosting quality of the current defrosting recorded after the defrosting mode exits; obtaining the current defrosting rate according to the ratio of the water melting quality of the current defrosting to the current defrosting time, and recording the current defrosting rate; determining the optimal set temperature for exiting the defrosting mode according to each defrosting rate recorded after exiting the defrosting mode within a preset time period; and updating the optimal set temperature for exiting the defrosting mode to the set temperature for exiting the defrosting mode.

In one embodiment, the set temperature update module is further configured to: determining the optimal defrosting rate with the maximum value in the defrosting rates; and determining the set temperature of the exiting defrosting mode corresponding to the optimal defrosting rate as the optimal set temperature of the exiting defrosting mode.

In one embodiment, the defrosting setting parameter adjusting means further comprises: the defrosting mode starting judgment module is used for acquiring heating operation parameters, and the heating operation parameters comprise: the tube wall temperature and the operating pressure ratio of the high-pressure side and the low-pressure side; and if the temperature of the pipe wall is less than or equal to the set temperature of the starting defrosting mode, and the operating pressure ratio is greater than or equal to the set pressure ratio of the high-pressure side and the low-pressure side of the starting defrosting mode, operating the defrosting mode.

In one embodiment, the defrosting mode activation determination module is further configured to: when the pipe wall temperature is lower than the set temperature of the starting defrosting mode and the operating pressure ratio is lower than the set pressure ratio, comparing the pipe wall temperature with a preset pipe wall temperature threshold value; and if the pipe wall temperature is less than or equal to the preset pipe wall temperature threshold value, operating the defrosting mode.

All or part of each module in the defrosting setting parameter adjusting device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, a computer device is provided, which may be a controller in the present application, and its internal structure diagram may be as shown in fig. 7. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer equipment is used for storing defrosting working parameters, standard working parameters and other data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a defrosting setting parameter adjustment method.

It will be appreciated by those skilled in the art that the configuration shown in fig. 7 is a block diagram of only a portion of the configuration associated with the present application, and is not intended to limit the computing device to which the present application may be applied, and that a particular computing device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:

acquiring defrosting working parameters, wherein the defrosting working parameters comprise at least one of working current, water melting quality or defrosting time;

and when the defrosting working parameter does not meet the standard working parameter during normal defrosting, adjusting the setting parameter for starting or quitting the defrosting mode.

In one embodiment, the processor when executing the computer program further performs the steps of:

comparing the running current value with a preset current threshold value, wherein the preset current threshold value is a standard working current of the compressor during normal defrosting;

In one embodiment, the processor, when executing the computer program, further performs the steps of:

comparing the secondary defrosting time with a preset defrosting time, wherein the preset defrosting time is a standard defrosting time when the secondary defrosting mode is normal defrosting;

and when the defrosting time is longer than the preset defrosting time, reducing the set temperature for exiting the defrosting mode.

acquiring the defrosting quality of the previous defrosting recorded after the previous defrosting mode exits;

calculating the ratio of the water melting quality of the former defrosting to the preset water melting quality;

and determining the preset defrosting time length according to the preset mapping relation between the ratio and the time length.

comparing the quality of the melting water with the preset quality of the melting water, wherein the preset quality of the melting water is the standard quality of the melting water during normal defrosting;

and when the water melting quality is less than the preset water melting quality, improving the set pressure ratio of the high-pressure side and the low-pressure side of the defrosting starting mode.

obtaining the current defrosting rate according to the ratio of the water melting quality of the current defrosting to the current defrosting time, and recording the current defrosting rate;

and updating the optimal set temperature for exiting the defrosting mode to the set temperature for exiting the defrosting mode.

determining the optimal defrosting rate with the largest numerical value in all defrosting rates;

and determining the set temperature of the defrosting mode as the optimal set temperature for exiting the defrosting mode, wherein the set temperature corresponds to the optimal defrosting rate.

when the pipe wall temperature is lower than the set temperature of the starting defrosting mode and the operating pressure ratio is lower than the set pressure ratio, comparing the pipe wall temperature with a preset pipe wall temperature threshold value;

and if the pipe wall temperature is less than or equal to the preset pipe wall temperature threshold value, operating the defrosting mode.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, performs the steps of:

acquiring defrosting working parameters, wherein the defrosting working parameters comprise at least one of working current, defrosting quality or defrosting time;

In one embodiment, the computer program when executed by the processor further performs the steps of:

comparing the defrosting time with a preset defrosting time, wherein the preset defrosting time is a standard defrosting time when the defrosting mode is normal;

obtaining heating operation parameters, wherein the heating operation parameters comprise: the tube wall temperature and the operating pressure ratio of the high and low pressure sides;

when the pipe wall temperature is lower than the set temperature of the starting defrosting mode and the operating pressure ratio is lower than the set pressure ratio, comparing the pipe wall temperature with a preset pipe wall temperature threshold;

In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, performs the steps of:

and when the water melting quality is smaller than the preset water melting quality, the set pressure ratio of the high-pressure side and the low-pressure side of the defrosting mode is increased.

It should be noted that, the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), magnetic Random Access Memory (MRAM), ferroelectric Random Access Memory (FRAM), phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the various embodiments provided herein may be, without limitation, general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, or the like.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A defrosting setting parameter adjusting method is characterized by comprising the following steps:

2. The method according to claim 1, wherein the defrosting operation parameter is an operation current value of a compressor when the unit operates in the defrosting mode;

3. The method of claim 1, wherein the defrosting operation parameter comprises a time period of defrosting when recorded after exiting the defrosting mode;

when the defrosting operating parameter does not meet the standard operating parameter during normal defrosting, the setting parameter for starting or quitting the defrosting mode is adjusted, and the method comprises the following steps: comparing the secondary defrosting time with a preset defrosting time, wherein the preset defrosting time is a standard defrosting time when the secondary defrosting mode is normal defrosting;

4. The method of claim 3, further comprising:

5. The method according to claim 4, wherein the method of determining the preset defrosting time period comprises:

6. The method of claim 1, wherein the defrosting operational parameter comprises a quality of thaw water of a current defrosting recorded after exiting the defrosting mode;

when the defrosting working parameter does not meet the standard working parameter during normal defrosting, the setting parameter for starting or exiting the defrosting mode is adjusted, and the method comprises the following steps: comparing the water melting quality with a preset water melting quality, wherein the preset water melting quality is a standard water melting quality during normal defrosting;

7. The method of claim 6, further comprising:

8. The method of claim 3, further comprising:

obtaining a current defrosting rate according to the ratio of the defrosting water quality to the current defrosting time, and recording the current defrosting rate;

9. The method according to claim 8, wherein the determining an optimal set temperature for exiting the defrost mode according to the predetermined number of defrost rates comprises:

determining the optimal defrosting rate with the maximum value in the defrosting rates;

and determining the set temperature of the defrosting mode as the optimal set temperature of the defrosting mode.

10. The method of claim 1, further comprising:

and if the pipe wall temperature is less than or equal to the set temperature of the starting defrosting mode, and the operating pressure ratio is greater than or equal to the set pressure ratio of the high-pressure side and the low-pressure side of the starting defrosting mode, operating the defrosting mode.

11. The method of claim 10, further comprising:

12. A defrosting setting parameter adjusting apparatus, the apparatus comprising:

the defrosting control system comprises a parameter acquisition module, a defrosting control module and a defrosting control module, wherein the parameter acquisition module is used for acquiring defrosting working parameters, and the defrosting working parameters comprise at least one of working current, defrosting quality and defrosting time length ratio;

and the adjusting module is used for adjusting the setting parameters for starting or exiting the defrosting mode when the defrosting working parameters do not meet the standard working parameters during normal defrosting.

13. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method of any one of claims 1 to 11 when executing the computer program.

14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 11.

15. A computer program product comprising a computer program, characterized in that the computer program realizes the steps of the method of any one of claims 1 to 11 when executed by a processor.