Refrigerant heat recovery method, system and terminal

Abstract

The invention relates to a refrigerant heat recovery method and system and a terminal, and relates to the field of energy recovery, and the refrigerant heat recovery method comprises the steps that when the temperature value of a refrigerant exceeds the high temperature value, the refrigerant in the high temperature state is conveyed into a heat recovery device, and the unit liquid amount is determined according to the temperature value of the refrigerant and liquid heat absorption parameters; the liquid adding frequency is determined according to the refrigerant temperature value, the unit liquid amount and the required temperature value; the liquid conveying device is controlled to convey the heat absorption liquid into the heat recovery device based on the unit liquid amount; when the liquid temperature value exceeds the reference temperature value, the heat absorption liquid with the liquid temperature value exceeding the reference temperature value is defined as high-temperature liquid, and the high-temperature liquid in the heat recovery device is recovered into the hot water storage area; the liquid conveying device is controlled to convey the heat absorption liquid into the heat recovery device again according to the unit liquid amount; and when the current adding frequency is consistent with the liquid adding frequency, heat recovery of the refrigerant is completed. The method has the effect of improving the energy utilization rate.

Description

Technical Field

[0001] The present invention relates to the field of energy recovery, and in particular to a refrigerant heat recovery method, system and terminal. Background Art

[0002] Refrigerant heat recovery refers to the process of collecting, converting and reusing the heat carried by the refrigerant that was originally discharged into the environment during the operation of the refrigeration system.

[0003] When the ice maker starts working, the refrigerant first enters the compressor in the form of a low-temperature, low-pressure gas. Under the strong action of the compressor, the refrigerant is compressed into a high-temperature, high-pressure gas. Subsequently, the high-temperature, high-pressure gaseous refrigerant flows into the condenser. In the condenser, the refrigerant exchanges heat with the external environment and begins to gradually release heat. As the heat is continuously released, the refrigerant gradually changes from a high-temperature, high-pressure gas to a normal-temperature, high-pressure liquid. At this time, the liquid refrigerant passes through the throttling device, and the pressure drops sharply, turning into a low-temperature, low-pressure liquid. Next, the low-temperature, low-pressure liquid refrigerant enters the evaporator, absorbs the heat of the space required for ice making in the evaporator, and thus achieves the purpose of ice making. After absorbing the heat, the refrigerant turns back into a low-temperature, low-pressure gas, enters the compressor again, and starts a new round of refrigeration cycle.

[0004] When the refrigerant completes a complete refrigeration cycle, the large amount of heat it carries in the condenser stage is usually dissipated to the surrounding environment through the heat dissipation mechanism of the condenser. If this part of heat is not recycled, it will be wasted, thus reducing the utilization rate of energy. Summary of the invention

[0005] In order to improve the utilization rate of energy, the present invention provides a refrigerant heat recovery method, system and terminal.

[0006] In a first aspect, the present invention provides a refrigerant heat recovery method, which adopts the following technical solution: A refrigerant heat recovery method, comprising: Obtaining a refrigerant temperature value of a preset refrigerant placement area; When the refrigerant temperature value exceeds a preset high temperature value, the refrigerant in a high temperature state is transported to a preset heat recovery device, and the unit liquid volume is determined according to the refrigerant temperature value and a preset liquid heat absorption parameter; Determine the number of times to add liquid according to the refrigerant temperature value, the unit liquid volume and the preset required temperature value; Based on the unit liquid amount, a preset liquid infusion device is controlled to deliver the preset heat absorbing liquid to the heat recovery device, and a liquid temperature value of the heat absorbing liquid in the heat recovery device is obtained; When the liquid temperature value exceeds the preset reference temperature value, the heat-absorbing liquid whose liquid temperature value exceeds the reference temperature value is defined as high-temperature liquid, and the infusion device is controlled to recover the high-temperature liquid in the heat recovery device into the preset hot water storage area; Control the infusion device to deliver the heat absorbing liquid to the heat recovery device again with a unit liquid volume, and obtain the current number of additions; When the current number of additions is consistent with the number of liquid additions, heat recovery of the refrigerant is completed.

[0007] By adopting the above technical scheme, the temperature value of the refrigerant placement area is first obtained. When the value exceeds the high temperature value, the high temperature refrigerant is transported to the heat recovery device, and the unit liquid volume is calculated according to its temperature value and the liquid heat absorption parameter. Then, the number of liquid additions is determined in combination with the refrigerant temperature value, the unit liquid volume and the required temperature value. Then, the heat-absorbing liquid is transported to the heat recovery device according to the unit liquid volume by using an infusion device to obtain its liquid temperature value. When the liquid temperature value exceeds the reference temperature value, the over-temperature heat-absorbing liquid is recovered as a high-temperature liquid to the hot water storage area by using an infusion device. Then, the heat-absorbing liquid is transported again according to the unit liquid volume and the current number of additions is recorded until the current number of additions is consistent with the number of liquid additions. In this way, the heat recovery of the refrigerant is completed, thereby improving the heat recovery efficiency of the refrigerant and improving the utilization rate of energy.

[0008] Optionally, also include heat utilization method: Obtain internal image information of the ice machine; When the internal image information contains a preset frosting feature, determining the frosting area according to the internal image information, the frosting feature and a preset reference object; Determine whether the frosting area falls within the preset frosting influence area; When the frosting area does not fall into the frosting affected area, continue to obtain the internal image information of the ice maker; When the frosted area falls into the frosting influence area, the preset defrosting device is controlled to remove the frosting characteristics by using a preset defrosting method.

[0009] Optional defrost methods include: Obtain the frosting area, frosting thickness information, frost temperature value of the frosting area, and hot water temperature value and internal hot water volume of the hot water storage area; When the frosting area does not exceed the preset reference frosting area, the hot water temperature change value is determined according to the hot water temperature value, the internal hot water volume and the preset hot air output; When the hot water temperature change value is lower than the preset minimum defrost temperature value, the temperature change time is determined according to the hot water temperature value, the internal hot water volume, the hot air output and the minimum defrost temperature value; Determine the defrosting time according to the frosting area, frost thickness information, frost temperature value, internal hot water volume and hot water temperature change value; When the defrost time exceeds the temperature change time, the heating power value is determined according to the internal hot water volume, the minimum defrost temperature value and the hot air output; The preset defrost device is controlled to absorb the hot air in the hot water storage area with a preset suction force value, and then the defrost device is controlled to blow air to the frosted area for defrosting with a preset blowing force value. During the defrosting process, the preset heating device is controlled to heat the liquid in the hot water storage area with a heating power value.

[0010] Optionally, the defrosting method further comprises: When the defrosting time exceeds the temperature change time, the frosting connection position and the connection length value are determined according to the internal image information, frosting characteristics, preset inner wall characteristics and reference objects; Determine the required defrost volume based on the connection length value and frost thickness information; Determine the correction time based on the required defrost volume and hot water temperature change; When the correction time does not exceed the temperature change time, the defrost angle value is determined according to the frosting connection position and the preset defrost device position; Determine the expansion and contraction value of the adjusting piece according to the defrosting angle value; Based on the expansion and contraction value of the adjusting piece, the adjusting piece preset on the defrost device is controlled to perform expansion and contraction adjustment. After the expansion and contraction adjustment, the defrost device is controlled to absorb the hot air in the hot water storage area with the suction force value, and then the defrost device is controlled to blow air to the frosted connection position with the blowing force value to defrost.

[0011] Optional, also includes the whole surface frosting removal method: When the frosting area exceeds a preset reference frosting area, determining whether the frosting area is a preset multi-surface frosting area; When the frosted area is not a multi-surface frosted area, obtaining the surface flatness of the frosted area; Determine the location with the lowest thickness based on the frosting area, surface flatness and frosting thickness information; Determine the defrost separation path according to the location with the lowest thickness and the frosting area; Determine the defrost parameters according to the defrost separation path and the frost thickness information; Based on the defrosting parameters, the defrosting device is controlled to perform defrosting along the defrosting separation path to complete the separation of the frosting area, and the frosting separation area is determined according to the frosting area and the defrosting separation path; The defrost device is controlled based on the frosting separation area to remove the frosting characteristics in a defrosting method.

[0012] Optional, also includes multi-surface frosting removal method: When the frosting area is a multi-surface frosting area, the specific frosting area is determined according to the internal image information, frosting characteristics, inner wall characteristics and the preset ice maker placement posture; When the specific frosting area includes a preset bottom area, a defrosting order is determined according to the specific frosting area, and an outside temperature value and an internal temperature value of the ice maker are obtained; When the outside temperature exceeds the preset defrosting temperature, the ice maker is controlled to open the cabinet door, and the preset blowing device is controlled to blow air into the ice maker at a preset blowing wind force value; Determine the frost melting rate and the post-blowing temperature value based on the outside temperature value, the blowing wind force value and the internal temperature value; Determine the auxiliary temperature value based on the frost melting rate and the post-blowing temperature value; Based on the defrost sequence, the defrost device is controlled to perform sequential defrosting using a whole-surface frost removal method, and a preset auxiliary heat release device is controlled to perform auxiliary heat release on the bottom surface area using an auxiliary temperature value.

[0013] Optionally, a blockage detection method is also included: Get the internal liquid level height value of the ice maker; When the internal liquid volume height value exceeds a preset reference height value, the pipe temperature distribution of the preset water outlet pipe is obtained; Determine the abnormal temperature location based on the pipeline temperature distribution and the preset interval distance value; Determine the location of pipeline blockage based on the location of abnormal temperature; The preset heating and unblocking device is controlled to transfer the heat in the hot water storage area to the pipe blockage position with the preset unblocking heat value, so as to unblock the water outlet pipe.

[0014] Optionally, an algorithm formula for calculating the defrost duration is also included: t={(c 冰 ρ 冰 S h (T 溶 -T0))+ρ 冰 S h L 冰} / (η1 η2 c m T), where t is the defrosting time, c 冰 is the specific heat capacity of frost, ρ 冰 is the density of frost, S is the frosting area, h is the frosting thickness information, T 溶is the melting point of ice, T0 is the frost temperature, L 冰 is the melting heat of ice, η1 is the heat transfer efficiency from high-temperature liquid to the defrost device, η2 is the heat transfer efficiency from the defrost device to the frosting area, c is the specific heat capacity of the high-temperature liquid, m is the amount of internal hot water, and T is the change in hot water temperature.

[0015] In a second aspect, the present application provides a refrigerant heat recovery system, which adopts the following technical solution: A refrigerant heat recovery system, comprising: The acquisition module is used to obtain the refrigerant temperature value, liquid temperature value, current addition times, internal image information, frosting area, frosting thickness information, frost temperature value, hot water temperature value, internal hot water volume, surface flatness, external temperature value, internal temperature value, internal liquid volume height value and pipeline temperature distribution; A memory for storing a program of any one of the above-mentioned refrigerant heat recovery methods; The processor is used to load, execute and implement the program stored in the memory.

[0016] In a third aspect, the present application provides a terminal, which adopts the following technical solution: A terminal comprises a memory and a processor, wherein the memory stores any one of the above-mentioned refrigerant heat recovery methods that can be loaded and executed by the processor.

[0017] In summary, the present application includes at least one of the following beneficial technical effects: 1. First, the temperature value of the refrigerant placement area is obtained. When the temperature value exceeds the high temperature value, the high temperature refrigerant is transported to the heat recovery device. The unit liquid volume is calculated according to the temperature value and the liquid heat absorption parameter. Then, the liquid addition times are determined in combination with the refrigerant temperature value, the unit liquid volume and the required temperature value. Then, the heat absorbing liquid is transported to the heat recovery device according to the unit liquid volume by using the infusion device to obtain the liquid temperature value. When the liquid temperature value exceeds the reference temperature value, the over-temperature heat absorbing liquid is recovered as the high temperature liquid to the hot water storage area by using the infusion device. Then, the heat absorbing liquid is transported again according to the unit liquid volume and the current addition times are recorded until the current addition times are consistent with the liquid addition times. Then, the heat recovery of the refrigerant is completed, thereby improving the heat recovery efficiency of the refrigerant and improving the utilization rate of energy. 2. First, obtain the information of the frosted area and the hot water storage area. If the frosted area does not exceed the baseline value, calculate the hot water temperature change value based on parameters such as the hot water temperature. If the change value is lower than the minimum defrosting temperature value, then combine various parameters to determine the temperature change duration and defrosting duration. When the defrosting duration exceeds the temperature change duration, calculate the heating power value based on relevant parameters. Then, control the defrosting device to absorb hot air and blow it to the frosted area for defrosting, and at the same time let the heating device heat the liquid in the hot water storage area according to the heating power value, so as to achieve efficient defrosting.

[0018] 3. When the frosted area exceeds the reference frosted area, first determine whether the frosted area is a multi-sided frosted area. If it is not a multi-sided frosted area, obtain the surface flatness of the frosted area, and determine the position with lower thickness based on the frosted area and frosted thickness information. Determine the defrost separation path based on the position and frosted area, and derive the defrost parameters. Subsequently, control the defrost device to defrost along the defrost separation path according to the defrost parameters, complete the separation of the frosted area, and determine the frosted separation area based on the frosted area and the defrost separation path. Finally, control the defrost device to remove the frosting characteristics of the frosted separation area according to the defrosting method, so as to efficiently remove the frost and improve the defrosting effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a method flow chart of a refrigerant heat recovery method in an embodiment of the present invention; Figure 2 is a method flow chart of a heat utilization method according to an embodiment of the present invention; Figure 3 is a method flow chart of a defrosting method in an embodiment of the present invention; Figure 4 is a method flow chart of another defrosting method in an embodiment of the present invention; Figure 5 is a method flow chart of a method for removing frosting on an entire surface according to an embodiment of the present invention; Figure 6 is a method flow chart of a multi-surface frosting removal method according to an embodiment of the present invention; Figure 7 4 is a flow chart of a method for detecting a blockage in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Reference Figure 1 The present application discloses a refrigerant heat recovery method, comprising the following steps: Step 100: Obtain a refrigerant temperature value of a preset refrigerant placement area.

[0022] The refrigerant placement area refers to the area in the ice maker for placing the refrigerant. The refrigerant placement area is set in advance by a person skilled in the art and will not be described in detail here. The refrigerant temperature value refers to the current temperature value of the refrigerant. The refrigerant temperature value is measured and obtained by a temperature sensor.

[0023] Step 101: When the refrigerant temperature value exceeds a preset high temperature value, the high temperature refrigerant is transported to a preset heat recovery device, and the unit liquid volume is determined according to the refrigerant temperature value and a preset liquid heat absorption parameter.

[0024] The high temperature value refers to the temperature value when the refrigerant reaches a high temperature state. The specific high temperature value is set in advance by a person skilled in the art and will not be described in detail here. When the temperature value of the refrigerant exceeds the high temperature value, the refrigerant is in a high temperature state at this time. The heat recovery device refers to a device for recovering the heat generated by the refrigerant in a high temperature state. The liquid heat absorption parameter refers to the physical quantity of the liquid's ability to absorb heat. The unit liquid volume refers to the amount of heat-absorbing liquid input into the heat recovery device at a single time. The heat-absorbing liquid refers to a liquid used to absorb the heat generated by the refrigerant. In this embodiment, the heat-absorbing liquid is water. The unit liquid volume corresponding to the refrigerant temperature value and the liquid heat absorption parameter can be matched through a preset heat absorption database, which includes the corresponding relationship between the refrigerant temperature value and the liquid heat absorption parameter and the unit liquid volume. The heat absorption database is an artificially set database and will not be described here.

[0025] When the refrigerant temperature exceeds the high temperature value, it means that the current refrigerant can no longer cool further and needs to be cooled. Then the high-temperature refrigerant can be transported to the heat recovery device for heat recovery. Before this, the unit liquid volume must be matched for subsequent steps.

[0026] Step 102: Determine the number of times liquid is added according to the refrigerant temperature value, the unit liquid volume and the preset required temperature value.

[0027] The required temperature value refers to the temperature value that the refrigerant needs to drop to after absorbing heat. The required temperature value is set in advance by those skilled in the art and will not be elaborated here. The number of liquid additions refers to the number of additions required to reduce the temperature of the refrigerant to the required temperature value when the amount of heat-absorbing liquid input into the heat recovery device at a single time is a unit liquid amount. The heat absorption database can be used to match the refrigerant temperature value and the number of liquid additions corresponding to the unit liquid amount, which includes the corresponding relationship between the refrigerant temperature value and the unit liquid amount and the number of liquid additions.

[0028] Step 103: Based on the unit liquid volume, a preset liquid infusion device is controlled to deliver the preset heat absorbing liquid to the heat recovery device, and a liquid temperature value of the heat absorbing liquid in the heat recovery device is obtained.

[0029] The infusion device refers to a device for transferring the heat-absorbing liquid from the preset liquid placement area to the heat recovery device. The liquid placement area refers to an area for storing the heat-absorbing liquid when it is not absorbing heat. The liquid placement area is set in advance by a person skilled in the art and will not be described in detail here. The liquid temperature value refers to the temperature value of the heat-absorbing liquid in the heat recovery device. The liquid temperature value is measured and obtained by a temperature sensor.

[0030] The infusion device is controlled to deliver the heat absorbing liquid to the heat recovery device for heat absorption according to the unit liquid volume, and the liquid temperature value of the heat absorbing liquid in the heat recovery device is obtained for subsequent steps.

[0031] Step 104: When the liquid temperature value exceeds the preset reference temperature value, the heat-absorbing liquid whose liquid temperature value exceeds the reference temperature value is defined as high-temperature liquid, and the infusion device is controlled to recover the high-temperature liquid in the heat recovery device into the preset hot water storage area.

[0032] The reference temperature value refers to the maximum temperature value that the heat-absorbing liquid can reach by absorbing heat. The reference temperature value is set in advance by those skilled in the art and will not be described in detail here. High-temperature liquid refers to liquid that can no longer absorb heat. The hot water storage area refers to an area for storing heat-absorbing liquid that can no longer absorb heat. The hot water storage area is set in advance by those skilled in the art and will not be described in detail here.

[0033] When the liquid temperature value exceeds the reference temperature value, it means that the current batch of heat-absorbing liquid can no longer absorb heat further. The liquid needs to be defined as a high-temperature liquid, and then the infusion device is controlled to recover the high-temperature liquid in the heat recovery device to the hot water storage area for subsequent use.

[0034] Step 105: Control the infusion device to deliver the heat absorbing liquid to the heat recovery device again with a unit liquid volume, and obtain the current number of additions.

[0035] The current number of additions refers to the number of times the infusion device delivers the heat-absorbing liquid to the heat recovery device with a unit amount of liquid. This can be counted by a preset electronic counter. After the high-temperature liquid in the heat recovery device that cannot further absorb heat is recovered to the hot water storage area, the infusion device needs to be controlled to deliver the heat-absorbing liquid from the liquid placement area to the heat recovery device with a unit amount of liquid again to absorb heat and obtain the current number of additions for subsequent steps.

[0036] Step 106: When the current number of additions is consistent with the number of liquid additions, heat recovery of the refrigerant is completed.

[0037] When the current number of additions is lower than the number of liquid additions, steps 103 to 105 need to be continuously repeated until the current number of additions is consistent with the number of liquid additions, thereby completing the heat recovery of the refrigerant.

[0038] When the current number of additions is consistent with the number of liquid additions, it means that the refrigerant can no longer generate heat, and the heat recovery of the refrigerant can be completed directly.

[0039] Reference Figure 2 , the heat utilization method comprises the following steps: Step 200: Acquire internal image information of the ice maker.

[0040] The internal image information refers to the image inside the ice maker, and the internal image information is obtained by taking a picture with a camera.

[0041] Step 201: When the internal image information contains a preset frosting feature, a frosting area is determined according to the internal image information, the frosting feature and a preset reference object.

[0042] Frost features refer to the features when frost appears inside the ice maker. Reference objects refer to objects used to assist in comparing the actual size and position of each feature in the image. The frosting features and the size and position of the reference objects are set in advance by those skilled in the art and will not be described in detail here. Frost area refers to the area inside the ice maker where frosting features appear. By identifying the regional positions of the frosting features and the reference objects in the internal image information, and then comparing the actual regional positions of the reference objects, the image ratio of the internal image information can be known, and then the actual frosted area can be compared.

[0043] When the internal image information contains frost features, it means that frost has appeared inside the ice maker, and the frosted area needs to be determined first for subsequent steps.

[0044] Step 202: Determine whether the frosting area falls within a preset frosting influence area.

[0045] The frost-affected area refers to the area where the frost formed in the ice maker will affect the user's use of the ice maker. The frost-affected area is set in advance by those skilled in the art and will not be described in detail here.

[0046] By judging whether the frosting area falls within the frosting influence area, it can be known whether the current frosting area will affect the user's use of the ice maker, and then it can be judged whether the frosting situation needs to be dealt with immediately.

[0047] Step 203: When the frosted area does not fall into the frosting affected area, continue to obtain the internal image information of the ice maker.

[0048] When the frosted area does not fall into the frosting affected area, it means that the current frosted area will not affect the user's use of the ice maker, and the frosting situation does not need to be processed immediately, and the internal image information of the ice maker can be continued to be obtained.

[0049] Step 204: When the frosted area falls into the frosting influence area, a preset defrosting device is controlled to remove the frosting characteristics with a preset defrosting method.

[0050] The defrosting device refers to a device for removing the frosting characteristics in the ice maker. The defrosting method is a method for removing the frosting characteristics in the ice maker. The specific defrosting method is described in detail in the subsequent steps 300 to 305, and will not be repeated here.

[0051] When the frosted area falls into the frosting influence area, it means that the current frosting area will affect the user's use of the ice maker, and the frosting situation needs to be dealt with immediately. Therefore, the defrosting method of the defrosting device needs to be controlled to remove the frosting characteristics.

[0052] Reference Figure 3 , the defrosting method comprises the following steps: Step 300: Obtain the frosting area, frosting thickness information, frost temperature value of the frosting area, and hot water temperature value and internal hot water volume of the hot water storage area.

[0053] The frosting area refers to the area of ​​the frosting area. The frosting thickness information refers to the thickness values ​​at various locations within the frosting area. The frost temperature value refers to the temperature value of the frost within the frosting area. The hot water temperature value refers to the temperature value within the hot water storage area. The internal hot water volume refers to the storage volume of the heat-absorbing liquid within the hot water storage area. The frosting area, the frosting thickness information, and the frost temperature value can all be scanned and obtained by a preset infrared scanner. The hot water temperature value is measured and obtained by a temperature sensor within the hot water storage area. The internal hot water volume must first be measured by a preset liquid level sensor in the hot water storage area to obtain the liquid level height, and then the liquid level height is calculated by multiplying the preset area bottom area by the product. The area bottom area refers to the area of ​​the bottom surface of the hot water storage area. The area bottom area is set in advance by a person skilled in the art and will not be elaborated here.

[0054] Step 301: When the frosting area does not exceed a preset reference frosting area, a hot water temperature change value is determined according to the hot water temperature value, the internal hot water volume, and the preset hot air output.

[0055] The reference frosting area is a reference area used to determine whether an entire side wall inside the ice maker is completely covered by the frosting area. The hot air output refers to the amount of hot air output by the defrosting device when defrosting the frosting area. The reference frosting area and the hot air output are both set in advance by those skilled in the art and will not be described in detail here. The hot water temperature change value refers to the numerical change in the hot water temperature caused by the hot air output in the hot water storage area. Specifically, when there is hot air output, the hot air reduces the temperature of the hot water by heat exchange with the hot water or by taking away part of the heat from the hot water storage area. The hot water temperature value, the internal hot water volume and the hot air output corresponding to the hot water temperature change value can be matched through the preset temperature database, which includes the corresponding relationship between the hot water temperature value, the internal hot water volume, the hot air output and the hot water temperature change value. The temperature database is a manually set database and will not be described in detail here.

[0056] When the frosting area does not exceed the reference frosting area, it means that the frosting area does not completely cover the entire side wall inside the ice maker, and the outlet hot water temperature change value must be matched first for subsequent steps.

[0057] Step 302: When the hot water temperature change value is lower than the preset minimum defrost temperature value, the temperature change duration is determined according to the hot water temperature value, the internal hot water volume, the hot air output volume and the minimum defrost temperature value.

[0058] The minimum defrost temperature value refers to the minimum value that the hot water temperature needs to reach when the heat in the hot water storage area is used to remove frost. The temperature change duration refers to the time it takes for the temperature in the hot water storage area to drop from the hot water temperature value to below the minimum defrost temperature value. The temperature database can be used to match the hot water temperature value, internal hot water volume, hot gas output, and the temperature change duration corresponding to the minimum defrost temperature value, which includes the corresponding relationship between the hot water temperature value, the internal hot water volume, the hot gas output, the minimum defrost temperature value, and the temperature change duration.

[0059] When the hot water temperature change value is lower than the minimum defrost temperature value, it means that the heat in the hot water storage area cannot be used for further defrosting. The temperature change duration must be matched first for subsequent steps.

[0060] Step 303: Determine the defrosting time according to the frosting area, frosting thickness information, frost temperature value, internal hot water volume and hot water temperature change value.

[0061] The defrosting time refers to the time required to remove all the frost in the frosted area. 冰 ρ 冰 S h (T 溶 -T0))+ρ 冰 S h L 冰} / (η1 η2 c m T) can be calculated, where t is the defrost time, c 冰 is the specific heat capacity of frost, ρ 冰 is the density of frost, S is the frosting area, h is the frosting thickness information, T 溶 is the melting point of ice, T0 is the frost temperature, L 冰 is the melting heat of ice, η1 is the heat transfer efficiency from high temperature liquid to defrosting device, η2 is the heat transfer efficiency from defrosting device to frosting area, c is the specific heat capacity of high temperature liquid, m is the internal hot water volume, and T is the change value of hot water temperature. 冰 , 冰 , T 溶 , L冰 , η1, η2 and c are all measured in advance by those skilled in the art and will not be elaborated here.

[0062] Step 304: When the defrosting time exceeds the temperature change time, the heating power value is determined according to the internal hot water amount, the minimum defrosting temperature value and the hot air output.

[0063] The heating power value refers to the power value required to heat the liquid in the hot water storage area. The preset heating database can match the heating power value corresponding to the internal hot water volume, the minimum defrosting temperature value and the hot gas output, which includes the corresponding relationship between the internal hot water volume, the minimum defrosting temperature value, the hot gas output and the heating power value. The heating database is a manually set database and will not be described here.

[0064] When the defrost time exceeds the temperature change time, it means that the frost cannot be completely removed by relying solely on the heat in the hot water storage area, and the heating power value must be matched first for subsequent steps.

[0065] Step 305: Control the preset defrost device to absorb the hot air in the hot water storage area with a preset suction force value, then control the defrost device to blow air to the frosted area with a preset blowing force value for defrosting, and during the blowing defrosting, control the preset heating device to heat the liquid in the hot water storage area with a heating power value.

[0066] The suction force value refers to the suction force when the defrosting device absorbs heat in the hot water storage area. The blowing force value refers to the blowing force when the defrosting device blows and defrosts the frosted area. The heating device refers to a device for heating the liquid in the hot water storage area. The suction force value and the blowing force value are set in advance by those skilled in the art and will not be described in detail here.

[0067] The defrost device is controlled to absorb the hot air in the hot water storage area with the suction force value, and then the defrost device is controlled to blow the absorbed hot air toward the frosted area with the blowing force value, so as to blow and defrost the frosted area. During the defrosting, the heating device is controlled to heat the liquid in the hot water storage area with the heating power value to provide heat to the defrost device.

[0068] Reference Figure 4 , the defrosting method comprises the following steps: Step 400: When the defrosting time exceeds the temperature change time, determine the frosting connection position and connection length value according to the internal image information, frosting characteristics, preset inner wall characteristics and reference objects.

[0069] Since the defrosting time required to remove all the frosted features in the frosted area is too long, it is necessary to adjust the size of the defrost to reduce the defrosting time. The defrosting can be achieved by heating the connection between the frosted features and the inner wall of the ice maker, so that the frost is directly separated from the inner wall of the ice maker, thereby achieving the defrosting effect.

[0070] The inner wall feature refers to the shape feature of the inner wall of the ice maker. The inner wall feature is set in advance by a person skilled in the art and will not be described in detail here. The frosting connection position refers to the position where the frosting feature is connected to the inner wall feature. The connection length value refers to the length value of the connection between the frosting feature and the inner wall feature. By identifying the regional positions of the frosting feature, the inner wall feature and the reference object in the internal image information, and then comparing the actual regional position of the reference object, the image ratio of the internal image information can be known, and then the actual frosting connection position and connection length value can be compared.

[0071] When the defrost time exceeds the temperature change time, the frosting connection position and connection length value must be determined first for subsequent steps.

[0072] Step 401: Determine the required defrost volume according to the connection length value and the frost thickness information.

[0073] The required defrost volume refers to the volume required for defrosting. The required defrost volume corresponding to the connection length value and the frost thickness information can be matched through the preset volume database, which contains the corresponding relationship between the connection length value and the frost thickness information and the required defrost volume. The volume database is a manually set database and will not be described here.

[0074] Step 402: Determine the correction time according to the required defrost volume and the hot water temperature change value.

[0075] Corrected duration refers to the corrected defrost duration. The preset defrost database can match the required defrost volume and the corrected duration corresponding to the hot water temperature change value, which includes the corresponding relationship between the required defrost volume and the hot water temperature change value and the corrected duration. The defrost database is a manually set database and will not be described in detail here.

[0076] Step 403: When the correction duration does not exceed the temperature change duration, the defrost angle value is determined according to the frosting connection position and the preset defrost device position.

[0077] The defrost device position refers to the position where the defrost device is installed. The defrost device position is set in advance by a person skilled in the art and will not be described in detail here. The defrost angle value refers to the angle value when the defrost device defrosts the frosted connection position. The defrost angle value corresponding to the frosted connection position and the defrost device position can be matched through the defrost database, which includes the correspondence between the frosted connection position and the defrost device position and the defrost angle value.

[0078] When the correction time does not exceed the temperature change time, it means that the frost can be removed by relying on the heat in the hot water storage area. The defrost angle value must be matched first for subsequent steps.

[0079] Step 404: Determine the expansion and contraction value of the adjusting plate according to the defrost angle value.

[0080] The adjustment piece extension value refers to the length value of the adjustment piece preset on the defrost device to be extended or contracted. The adjustment piece refers to an object used to adjust the defrost angle of the defrost device. The adjustment piece is set at the air outlet of the defrost device, and the adjustment piece is V-shaped. By adjusting the extension or contraction length value of the two adjustment pieces, the effect of adjusting the defrost angle value can be achieved.

[0081] The adjustment sheet expansion value corresponding to the defrost angle value can be matched through the preset adjustment database, which includes the corresponding relationship between the defrost angle value and the adjustment sheet expansion value. The adjustment database is a manually set database and will not be described in detail here.

[0082] Step 405: Based on the telescopic value of the adjusting piece, the adjusting piece preset on the defrost device is controlled to perform telescopic adjustment. After the telescopic adjustment, the defrost device is controlled to absorb the hot air in the hot water storage area with the suction force value, and then the defrost device is controlled to blow air to the frosted connection position with the blowing force value to defrost.

[0083] The adjusting piece preset on the defrost device is controlled to be telescopically adjusted according to the telescopic value of the adjusting piece, so as to complete the angle adjustment. After the telescopic adjustment, the defrost device is controlled to absorb the hot air in the hot water storage area with the suction force value, and then the defrost device is controlled to blow air to the frosting connection position with the blowing force value to defrost, thereby removing the frost inside the ice maker.

[0084] Reference Figure 5 The whole surface frosting removal method comprises the following steps: Step 500: When the frosting area exceeds a preset reference frosting area, determine whether the frosting area is a preset multi-surface frosting area.

[0085] The multi-surface frosted area refers to the situation that more than one inner wall in the ice maker is completely covered with frost. In this embodiment, the multi-surface frosted area refers to the situation that at least two or more inner walls are completely covered with frost. When the frosted area exceeds the reference frosted area, it means that the frosted area completely covers an entire side wall inside the ice maker, and it is necessary to determine whether the frosted area is a multi-surface frosted area for subsequent steps.

[0086] Step 501: When the frosted area is not a multi-surface frosted area, obtain the surface flatness of the frosted area.

[0087] Surface flatness refers to the flatness of the frost surface in the frosted area. The frost surface can be scanned for flatness by a preset infrared scanner to obtain the surface flatness.

[0088] When the frosted area is not a multi-faceted frosted area, it is necessary to obtain the surface flatness of the frosted area for subsequent steps.

[0089] Step 502: Determine a location with lower frosting thickness according to frosting area, surface flatness and frosting thickness information.

[0090] The lower thickness position refers to the place in the frosted area where the frost thickness is thinner than other parts. The preset thickness database can match the lower thickness position corresponding to the frosted area, surface flatness and frosted thickness information, which contains the corresponding relationship between the frosted area, surface flatness, frosted thickness information and the lower thickness position. The thickness database is a manually set database and will not be described here.

[0091] Step 503: Determine the defrost separation path according to the position with the lowest thickness and the frosting area.

[0092] The defrost separation path is a path used to separate the entire frosted area into multiple small areas. The defrost separation path corresponding to the lower thickness position and the frosted area can be matched through the defrost database, which includes the correspondence between the lower thickness position and the frosted area and the defrost separation path.

[0093] Step 504: Determine defrost parameters according to the defrost separation path and the frosting thickness information.

[0094] The defrost parameter refers to the heat output required when the defrost device separates the frosted area along the defrost separation path. The defrost parameters corresponding to the defrost separation path and the frosting thickness information can be matched through the defrost database, which includes the correspondence between the defrost separation path and the frosting thickness information and the defrost parameters.

[0095] Step 505: Based on the defrosting parameters, the defrosting device is controlled to perform defrosting along the defrosting separation path to complete the separation of the frosting area, and the frosting separation area is determined according to the frosting area and the defrosting separation path.

[0096] The frosting separation area refers to each subdivided area obtained after the frosting area is separated. The frosting separation area corresponding to the frosting area and the defrosting separation path can be matched through the preset separation database, which includes the correspondence between the frosting area and the defrosting separation path and the frosting separation area. The separation database is a manually set database and will not be described in detail here.

[0097] The defrost device is controlled to defrost the frosted area along the defrost separation path with the defrost parameters to complete the separation of the frosted area, and then the frosted separation area is matched for subsequent steps.

[0098] Step 506: Controlling the defrost device to remove the frosting characteristics using a defrost method based on the frosting separation area.

[0099] The obtained frosting separation area is redefined as a separate frosting area, so as to control the defrosting device to remove the frosting characteristics by a defrosting method.

[0100] Reference Figure 6 , the multi-surface frosting removal method comprises the following steps: Step 600: When the frosted area is a multi-surface frosted area, determine the specific frosted area according to the internal image information, frosting characteristics, inner wall characteristics and the preset ice maker placement posture.

[0101] The placement posture of the ice maker refers to the spatial position and orientation of the ice maker when it is placed. The placement posture of the ice maker is set in advance by a person skilled in the art and will not be described in detail here. The specific frosting area refers to the inner wall where the situation occurs when multiple inner walls inside the ice maker are completely covered with frost. The internal image information, frosting characteristics, inner wall characteristics and the specific frosting area corresponding to the placement posture of the ice maker can be matched through the preset regional database, which contains the corresponding relationship between the internal image information, frosting characteristics, inner wall characteristics, the placement posture of the ice maker and the specific frosting area. The regional database is a manually set database and will not be described in detail here.

[0102] When the frosted area is a multi-surface frosted area, it means that more than one inner wall of the ice maker is completely covered with frost. The specific frosted area needs to be matched first for subsequent steps.

[0103] Step 601: When the specific frosting area includes a preset bottom area, a defrosting order is determined according to the specific frosting area, and an outside temperature value and an internal temperature value of the ice maker are obtained.

[0104] The bottom area refers to the area located on the bottom surface of the ice maker. The bottom area is set in advance by a person skilled in the art and will not be described in detail here. The defrosting order refers to the order in which multiple frosted inner walls in the ice maker are defrosted. When defrosting other areas in the ice maker except the bottom area, the water generated during the defrosting process will naturally drip to the bottom area. These dripping water can cause the frost in the bottom area to begin to melt slowly first. Based on this, in order to improve the defrosting efficiency, the bottom area should be the last area to be defrosted. The outside temperature value refers to the ambient temperature of the location where the ice maker is placed. The internal temperature value refers to the temperature value inside the ice maker. Both the outside temperature value and the internal temperature value are measured and obtained by a temperature sensor.

[0105] Therefore, when the specific frosting area includes the bottom area, it is necessary to first match the defrosting sequence and obtain the outside temperature value and the internal temperature value of the ice maker for subsequent steps.

[0106] Step 602: When the outside temperature exceeds the preset defrosting temperature, the ice maker is controlled to open the cabinet door, and the preset blowing device is controlled to blow air to the inside of the ice maker at a preset blowing wind force value.

[0107] The defrost temperature value refers to the value that the external environment temperature should reach when the temperature value of the external environment is used to assist in melting ice. The blowing device refers to a device used to blow the heat of the external environment into the ice maker. The blowing wind force value refers to the wind force value that blows the heat of the external environment into the ice maker. The defrost temperature value and the blowing wind force value are both set in advance by those skilled in the art and will not be described in detail here.

[0108] When the outside temperature value exceeds the defrost temperature value, it means that the outside ambient temperature can assist the ice maker to melt ice. It is necessary to control the ice maker to open the cabinet door, and then control the blowing device to blow air to the inside of the ice maker with the blowing wind force value, so as to blow the heat from the outside environment into the ice maker, thereby assisting the ice maker to melt ice.

[0109] Step 603: Determine the frost melting rate and the post-blowing temperature value according to the outside temperature value, the blowing wind force value and the inside temperature value.

[0110] The frost melting rate refers to the rate at which the frost in the bottom area melts under the influence of the external temperature value, the blowing wind force value, and the internal temperature value. The post-blowing temperature value refers to the temperature value inside the ice maker after the blowing device blows air inside the ice maker. The frost melting rate and post-blowing temperature value corresponding to the external temperature value, the blowing wind force value, and the internal temperature value can be matched through the preset blowing database, which includes the correspondence between the external temperature value, the blowing wind force value, the internal temperature value, the frost melting rate, and the post-blowing temperature value. The blowing database is a manually set database and will not be elaborated here.

[0111] Step 604: Determine the auxiliary temperature value according to the frost melting rate and the post-blowing temperature value.

[0112] The auxiliary temperature value refers to the temperature value used for auxiliary heating of the bottom surface of the ice maker. After the frost in the area outside the bottom surface area is cleaned off, there is a probability that it will refreeze with the frost in the bottom surface area, so an auxiliary temperature value needs to be matched for auxiliary heating to prevent refreezing. The auxiliary temperature value corresponding to the frost melting rate and the post-blowing temperature value can be matched through the defrost database, which contains the corresponding relationship between the frost melting rate and the post-blowing temperature value and the auxiliary temperature value.

[0113] Step 605: Based on the defrosting sequence, the defrosting device is controlled to perform sequential defrosting using a whole-surface frost removal method, and a preset auxiliary heat release device is controlled to perform auxiliary heat release on the bottom surface area using an auxiliary temperature value.

[0114] Auxiliary heat release equipment refers to equipment used for auxiliary heat release to the bottom area. The defrosting device is controlled to perform sequential defrosting in a defrosting sequence and a whole-surface frost removal method, and the auxiliary heat release equipment is controlled to perform auxiliary heat release to the bottom area at an auxiliary temperature value during defrosting.

[0115] Reference Figure 7 , the blockage detection method comprises the following steps: Step 700: Obtain the internal liquid level value of the ice maker.

[0116] The internal liquid level value refers to the height of the liquid stored inside the ice maker after the frost inside the ice maker melts into water. It is measured by the water level sensor preset inside the ice maker.

[0117] Step 701: When the internal liquid volume height value exceeds a preset reference height value, a preset pipe temperature distribution of the water outlet pipe is obtained.

[0118] The reference height value is a value used to assist in determining whether the internal liquid level height value is too high. The reference height value is set in advance by a person skilled in the art and will not be described in detail here. The water outlet pipe refers to a pipe used to discharge water from the inside of the ice maker. The pipe temperature distribution refers to the temperature values ​​at different positions of the water outlet pipe. In this embodiment, a temperature sensor is provided at the interval of the water outlet pipe to measure the temperature values ​​at different positions of the water outlet pipe. The distance of the interval is set in advance by a person skilled in the art and will not be described in detail here.

[0119] Step 702: Determine the temperature anomaly location according to the pipeline temperature distribution and the preset interval distance value.

[0120] The interval distance value indicates the distance between temperature sensors at different locations in the water pipe. The temperature anomaly location indicates the point on the water pipe where the temperature at a certain location is abnormal compared to the overall temperature of the pipe. The preset anomaly database can be used to match the temperature distribution of the pipe and the temperature anomaly location corresponding to the interval distance value. It contains the corresponding relationship between the temperature distribution of the pipe, the interval distance value, and the temperature anomaly location. The anomaly database is a manually set database and will not be described here.

[0121] Step 703: Determine the pipeline blockage location based on the temperature anomaly location.

[0122] The pipe blockage position refers to the position where the blockage occurs on the water pipe. During defrosting, some small ice cubes will directly enter the water outlet pipe. When the ice cubes entering the water outlet pipe are close to the diameter of the water outlet pipe, the water outlet pipe will be blocked by ice cubes. The temperature of the ice cubes is relatively low, so the temperature of the blockage position will be abnormal, which means that the position with abnormal temperature is the pipe blockage position.

[0123] Step 704: Control the preset heating and unblocking device to transfer the heat in the hot water storage area to the pipe blockage position with a preset unblocking heat value, so as to unblock the water outlet pipe.

[0124] The heating and unblocking device refers to a device used to unblock a water outlet pipe blocked by ice. The unblocking heat value refers to the heat value used to heat and melt the ice that blocks the water outlet pipe. The unblocking heat value is set in advance by a person skilled in the art and will not be described in detail here.

[0125] The heating dredging device is controlled to transfer the heat in the hot water storage area to the blocked position of the pipe with the dredging heat value, so as to dredge the water outlet pipe.

[0126] Based on the same inventive concept, an embodiment of the present invention provides a refrigerant heat recovery system, comprising: The acquisition module is used to obtain the refrigerant temperature value, liquid temperature value, current addition times, internal image information, frosting area, frosting thickness information, frost temperature value, hot water temperature value, internal hot water volume, surface flatness, external temperature value, internal temperature value, internal liquid volume height value and pipeline temperature distribution; A memory for storing a program of a refrigerant heat recovery method; The processor is used to load, execute and implement the program stored in the memory.

[0127] Based on the same inventive concept, an embodiment of the present invention provides a terminal, including a memory and a processor, wherein the memory stores a refrigerant heat recovery method that can be loaded and executed by the processor.

[0128] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0129] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A refrigerant heat recovery method, characterized in that: include: Obtaining a refrigerant temperature value of a preset refrigerant placement area; When the refrigerant temperature value exceeds a preset high temperature value, the refrigerant in a high temperature state is transported to a preset heat recovery device, and the unit liquid volume is determined according to the refrigerant temperature value and a preset liquid heat absorption parameter; Determine the number of times to add liquid according to the refrigerant temperature value, the unit liquid volume and the preset required temperature value; Based on the unit liquid amount, a preset liquid infusion device is controlled to deliver the preset heat absorbing liquid to the heat recovery device, and a liquid temperature value of the heat absorbing liquid in the heat recovery device is obtained; When the liquid temperature value exceeds the preset reference temperature value, the heat-absorbing liquid whose liquid temperature value exceeds the reference temperature value is defined as high-temperature liquid, and the infusion device is controlled to recover the high-temperature liquid in the heat recovery device into the preset hot water storage area; Control the infusion device to deliver the heat absorbing liquid to the heat recovery device again with a unit liquid volume, and obtain the current number of additions; When the current number of additions is consistent with the number of liquid additions, heat recovery of the refrigerant is completed.

2. A refrigerant heat recovery method according to claim 1, characterized in that: Also includes heat utilization methods: Obtain internal image information of the ice machine; When the internal image information contains a preset frosting feature, determining the frosting area according to the internal image information, the frosting feature and a preset reference object; Determine whether the frosting area falls within the preset frosting influence area; When the frosting area does not fall into the frosting affected area, continue to obtain the internal image information of the ice maker; When the frosted area falls into the frosting influence area, a preset defrosting device is controlled to remove the frosting characteristics by a preset defrosting method.

3. A refrigerant heat recovery method according to claim 2, characterized in that: Defrost methods include: Obtain the frosting area, frosting thickness information, frost temperature value of the frosting area, and hot water temperature value and internal hot water volume of the hot water storage area; When the frosting area does not exceed the preset reference frosting area, the hot water temperature change value is determined according to the hot water temperature value, the internal hot water volume and the preset hot air output; When the hot water temperature change value is lower than the preset minimum defrost temperature value, the temperature change time is determined according to the hot water temperature value, the internal hot water volume, the hot air output and the minimum defrost temperature value; Determine the defrosting time according to the frosting area, frost thickness information, frost temperature value, internal hot water volume and hot water temperature change value; When the defrost time exceeds the temperature change time, the heating power value is determined according to the internal hot water volume, the minimum defrost temperature value and the hot air output; The preset defrost device is controlled to absorb the hot air in the hot water storage area with a preset suction force value, and then the defrost device is controlled to blow air to the frosted area for defrosting with a preset blowing force value. During the defrosting process, the preset heating device is controlled to heat the liquid in the hot water storage area with a heating power value.

4. A refrigerant heat recovery method according to claim 3, characterized in that: Defrost methods also include: When the defrosting time exceeds the temperature change time, the frosting connection position and the connection length value are determined according to the internal image information, frosting characteristics, preset inner wall characteristics and reference objects; Determine the required defrost volume based on the connection length value and frost thickness information; Determine the correction time based on the required defrost volume and hot water temperature change; When the correction time does not exceed the temperature change time, the defrost angle value is determined according to the frosting connection position and the preset defrost device position; Determine the expansion and contraction value of the adjusting piece according to the defrosting angle value; Based on the expansion and contraction value of the adjusting piece, the adjusting piece preset on the defrost device is controlled to perform expansion and contraction adjustment. After the expansion and contraction adjustment, the defrost device is controlled to absorb the hot air in the hot water storage area with the suction force value, and then the defrost device is controlled to blow air to the frosted connection position with the blowing force value to defrost.

5. A refrigerant heat recovery method according to claim 3, characterized in that: Also includes the method of removing the whole surface frost: When the frosting area exceeds a preset reference frosting area, determining whether the frosting area is a preset multi-surface frosting area; When the frosted area is not a multi-surface frosted area, obtaining the surface flatness of the frosted area; Determine the location with the lowest thickness based on the frosting area, surface flatness and frosting thickness information; Determine the defrost separation path according to the location with the lowest thickness and the frosting area; Determine the defrost parameters according to the defrost separation path and the frost thickness information; Based on the defrosting parameters, the defrosting device is controlled to perform defrosting along the defrosting separation path to complete the separation of the frosting area, and the frosting separation area is determined according to the frosting area and the defrosting separation path; The defrost device is controlled based on the frosting separation area to remove the frosting characteristics in a defrosting method.

6. A refrigerant heat recovery method according to claim 5, characterized in that: Also includes multi-surface frosting removal methods: When the frosting area is a multi-surface frosting area, the specific frosting area is determined according to the internal image information, frosting characteristics, inner wall characteristics and the preset ice maker placement posture; When the specific frosting area includes a preset bottom area, a defrosting order is determined according to the specific frosting area, and an outside temperature value and an internal temperature value of the ice maker are obtained; When the outside temperature exceeds the preset defrosting temperature, the ice maker is controlled to open the cabinet door, and the preset blowing device is controlled to blow air into the ice maker at a preset blowing wind force value; Determine the frost melting rate and the post-blowing temperature value based on the outside temperature value, the blowing wind force value and the internal temperature value; Determine the auxiliary temperature value based on the frost melting rate and the post-blowing temperature value; Based on the defrost sequence, the defrost device is controlled to perform sequential defrosting using a whole-surface frost removal method, and a preset auxiliary heat release device is controlled to perform auxiliary heat release on the bottom surface area using an auxiliary temperature value.

7. A refrigerant heat recovery method according to claim 6, characterized in that: Also includes clogging detection methods: Get the internal liquid level height value of the ice maker; When the internal liquid volume height value exceeds a preset reference height value, the pipe temperature distribution of the preset water outlet pipe is obtained; Determine the abnormal temperature location based on the pipeline temperature distribution and the preset interval distance value; Determine the location of pipeline blockage based on the location of abnormal temperature; The preset heating and unblocking device is controlled to transfer the heat in the hot water storage area to the pipe blockage position with the preset unblocking heat value, so as to unblock the water outlet pipe.

8. A refrigerant heat recovery method according to claim 3, characterized in that: It also includes the algorithm formula for calculating the defrost time: t={(c 冰 ρ 冰 S h (T 溶 -T0))+ρ 冰 S h L 冰 } / (η1 η2 c m T), where t is the defrost time, c 冰 is the specific heat capacity of frost, ρ 冰 is the density of frost, S is the frosting area, h is the frosting thickness information, T 溶 is the melting point of ice, T0 is the frost temperature, L 冰 is the melting heat of ice, η1 is the heat transfer efficiency from high-temperature liquid to the defrost device, η2 is the heat transfer efficiency from the defrost device to the frosting area, c is the specific heat capacity of the high-temperature liquid, m is the amount of internal hot water, and T is the change in hot water temperature.

9. A refrigerant heat recovery system, characterized in that: include: The acquisition module is used to obtain the refrigerant temperature value, liquid temperature value, current addition times, internal image information, frosting area, frosting thickness information, frost temperature value, hot water temperature value, internal hot water volume, surface flatness, external temperature value, internal temperature value, internal liquid volume height value and pipeline temperature distribution; A memory for storing a program of a refrigerant heat recovery method according to any one of claims 1 to 8; The processor is used to load, execute and implement the program stored in the memory.

10. A terminal, characterized in that: The invention comprises a memory and a processor, wherein the memory stores a refrigerant heat recovery method as claimed in any one of claims 1 to 8 which can be loaded and executed by the processor.

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