Refrigerant leakage processing method and device, drying equipment and storage medium

Abstract

The invention discloses a refrigerant leakage processing method and device, drying equipment and a storage medium, the method is applied to the drying equipment, and the method comprises the steps that a refrigerant transmission path of the drying equipment is detected, and the refrigerant leakage position during refrigerant leakage is determined; when it is determined that the position where the refrigerant leaks is the pipeline of the drying equipment, a first control valve of the drying equipment is closed, and a compressor of the drying equipment is controlled to feed the residual refrigerant in the pipeline into a condenser of the drying equipment; wherein the first control valve is located at an output port of the condenser; when it is determined that the suction pressure of the compressor is smaller than or equal to the preset pressure, a second control valve of the drying equipment is closed, and the compressor is closed; and the second control valve is positioned at an input port of the condenser. According to the scheme, the intelligent degree of the drying equipment is improved, and the use experience of a user is enhanced. In addition, the use risk of the refrigerant is reduced, and the safety coefficient of the drying equipment is improved.

Description

Technical Field

[0001] The present application relates to the field of smart home appliance technology, and in particular to a refrigerant leakage treatment method, device, drying equipment and storage medium. Background Art

[0002] At present, drying equipment gradually uses propane (also known as R290) as a new environmentally friendly refrigerant to replace the previous hydrochlorofluorocarbon refrigerants. The global warming potential of propane is close to zero, and the use of propane as a refrigerant has no effect on the greenhouse effect and the ozone layer. In addition, propane has good thermal conductivity and high refrigeration efficiency.

[0003] However, the disadvantages of using propane as a refrigerant are also obvious. Propane is flammable, explosive, and easy to suffocate. Once propane leaks, the consequences will be very dangerous. Existing drying equipment can only remind users when a refrigerant leak is detected, and the degree of intelligence is not high. In addition, it is impossible to take effective emergency measures to ensure the safety of users, and the safety factor is low. Summary of the invention

[0004] The present application provides a refrigerant leakage processing method, device, drying equipment and storage medium to solve the problem that the existing drying equipment can only remind the user when a refrigerant leakage is detected, the intelligence level is not high, and effective emergency measures cannot be taken to ensure the safety of the user, and the safety factor is low.

[0005] In a first aspect, the present application provides a refrigerant leakage treatment method, which is applied to a drying device, and the method comprises:

[0006] Detecting the refrigerant transmission path of the drying equipment to determine the location where the refrigerant leaks;

[0007] When it is determined that the location where the refrigerant leaks is the pipeline of the drying device, the first control valve of the drying device is closed, and the compressor of the drying device is controlled to send the remaining refrigerant in the pipeline into the condenser of the drying device; wherein the first control valve is located at the output port of the condenser;

[0008] When it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, the second control valve of the drying device is closed, and the compressor is closed; wherein the second control valve is located at the input port of the condenser.

[0009] In a second aspect, the present application further provides a drying device, comprising a controller, a condenser, a compressor, a pipeline, an evaporator, a first control valve and a second control valve; wherein the compressor, the first control valve and the second control valve are all connected to the controller; the output end of the compressor, the second control valve, the condenser, the first control valve and the input end of the evaporator are sequentially connected through the pipeline, and the output end of the evaporator is also connected to the input end of the compressor;

[0010] The controller is used to execute the refrigerant leakage processing method described in the first aspect of the present application;

[0011] The compressor is used to send the remaining refrigerant in the pipeline into the interior of the condenser under the control of the controller;

[0012] The first control valve and the second control valve are both used to close under the control of the controller.

[0013] In a third aspect, the present application further provides a refrigerant leakage treatment device, which is configured in a drying device, comprising:

[0014] A position determination module, used to detect the refrigerant transmission path of the drying equipment and determine the position where the refrigerant leaks when the refrigerant leaks;

[0015] A first closing module is used to close a first control valve of the drying device when it is determined that the location where the refrigerant leaks is the pipeline of the drying device, and control the compressor of the drying device to send the remaining refrigerant in the pipeline into the condenser of the drying device; wherein the first control valve is located at the output port of the condenser;

[0016] The second closing module is used to close the second control valve of the drying device and the compressor when it is determined that the suction pressure of the compressor is less than or equal to a preset pressure; wherein the second control valve is located at the input port of the condenser.

[0017] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a refrigerant leakage processing method as described in any one of the present applications.

[0018] The scheme of the present application is applied to a drying device, and the refrigerant transmission path of the drying device is detected to determine the location where the refrigerant leaks when the refrigerant leaks; when it is determined that the location where the refrigerant leaks is the pipeline of the drying device, the first control valve of the drying device is closed, and the compressor of the drying device is controlled to send the remaining refrigerant in the pipeline into the interior of the condenser of the drying device; wherein the first control valve is located at the output port of the condenser; when it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, the second control valve of the drying device is closed, and the compressor is turned off; wherein the second control valve is located at the input port of the condenser. That is, the scheme of the present application, on the one hand, by detecting the refrigerant transmission path of the drying device, the location where the refrigerant leaks when the refrigerant leaks can be more clearly obtained, which is convenient for taking different operations for different locations during maintenance. On the other hand, when it is determined that the location where the refrigerant leaks is the pipeline of the drying device, the first control valve is first closed, and the compressor is controlled to send the remaining refrigerant in the pipeline into the interior of the condenser, and then when the suction pressure of the compressor is less than or equal to the preset pressure, the second control valve is closed, and the compressor is turned off, which improves the intelligence of the drying device and enhances the user experience. And the remaining refrigerant in the pipeline can be sent to the condenser to prevent further leakage, thereby reducing the risk of refrigerant use and improving the safety factor of the drying equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a flow chart of the refrigerant leakage treatment method provided by the present application;

[0021] Figure 2 is another flow chart of the refrigerant leakage treatment method provided by the present application;

[0022] Figure 3a It is a structural schematic diagram of the drying equipment provided by the present application;

[0023] Figure 3b is another structural schematic diagram of the drying equipment provided by the present application;

[0024] Figure 4 It is a structural schematic diagram of the refrigerant leakage treatment device provided by the present application;

[0025] Figure 5 It is a structural schematic diagram of the drying equipment provided by the present application;

[0026] In the attached figure:

[0027] 1- compressor, 2- first electronic expansion valve, 3- condenser, 4- second electronic expansion valve, 5- capillary component, 6- evaporator, 7- first refrigerant detector, 8- backup power supply, 9- second refrigerant detector. DETAILED DESCRIPTION

[0028] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only the parts related to the present application, rather than all structures, are shown in the accompanying drawings.

[0029] Figure 1 : is a flow chart of the refrigerant leakage treatment method provided by the present application. The method can be executed by the refrigerant leakage treatment device provided by the present application, and the device can be implemented in software and / or hardware. In a specific embodiment, the device can be integrated in a drying device. For example, the drying device can be a clothes dryer. The following embodiments will be described by taking the device integrated in the drying device as an example. Figure 1 , the method may specifically include the following steps:

[0030] Step 101, detecting the refrigerant transmission path of the drying equipment to determine the location where the refrigerant leaks.

[0031] Specifically, the refrigerant transmission path of the drying equipment is the path for refrigerant transmission inside the drying equipment when the drying equipment is running, including a condenser, a compressor, an evaporator, a first control valve, a second control valve, and a pipeline connecting the above-mentioned equipment. The first control valve and the second control valve can be electric control valves, and the opening and closing of the control valves can be realized by electricity. For example, the first control valve and the second control valve can be electronic expansion valves. Alternatively, the first control valve and the second control valve can also be control valves realized by mechanical structures, as long as the first control valve and the second control valve can cut off the refrigerant transmission path under the control of the controller. The refrigerant transmission path of the drying equipment is detected. For example, a refrigerant capacity sensor can be installed to detect whether the refrigerant capacity is different from the preset capacity, thereby determining whether the refrigerant is leaking. And determine the position where the refrigerant leaks when the refrigerant leaks. For example, the position where the refrigerant reduction is greater than the preset reduction threshold can be determined by detection, and the position is determined as the position where the refrigerant leaks when the refrigerant leaks. The preset reduction threshold is the refrigerant reduction when the preset refrigerant does not leak.

[0032] Optionally, the drying device includes a first refrigerant detector and a second refrigerant detector. Detecting the refrigerant transmission path of the drying device and determining the location of the refrigerant leakage when the refrigerant leaks can be achieved through steps 1011 to 1013.

[0033] Step 1011: when it is determined that the first refrigerant detector detects the refrigerant, it is determined that the location where the refrigerant leaks is inside the condenser of the drying equipment.

[0034] Specifically, both the first refrigerant detector and the second refrigerant detector are detectors that react when the presence of refrigerant is detected. For example, when the refrigerant is propane, both the first refrigerant detector and the second refrigerant detector are propane detectors, which will send a refrigerant leakage signal to the controller when propane is detected, and at the same time, a buzzing sound may be emitted. The first refrigerant detector is installed around the condenser, and the detection range is the entire condenser. Therefore, when the first refrigerant detector detects the refrigerant, it can be determined that the condenser has leaked. Therefore, when it is determined that the first refrigerant detector detects the refrigerant, it is determined that the location where the refrigerant has leaked is inside the condenser of the drying equipment.

[0035] Optionally, when it is determined that the location where the refrigerant leaks is inside the condenser, the first control valve and the second control valve are closed, and the compressor of the drying equipment is turned off so that the remaining refrigerant is stored between the first control valve, the evaporator, the compressor and the second control valve.

[0036] Specifically, the first control valve is located at the output port of the condenser, and the second control valve is located at the input port of the condenser. The refrigerant transmission path starts from the condenser, and the refrigerant passes through the condenser, the first control valve, the evaporator, the compressor, the second control valve in sequence, and then returns to the condenser. Therefore, when it is determined that the location where the refrigerant leaks is inside the condenser, the first control valve and the second control valve are closed, and the remaining refrigerant in the refrigerant transmission path is stored between the first control valve, the evaporator, the compressor and the second control valve, so that the remaining refrigerant in the pipeline will no longer enter the condenser, greatly reducing the amount of refrigerant leakage. At this time, the compressor of the drying equipment is turned off to prevent the compressor from continuing to inhale air after the first control valve and the second control valve are closed, which will cause the pipeline gas to accumulate at the first control valve, resulting in the risk of explosion in the pipeline.

[0037] Step 1012: When it is determined that the second refrigerant detector detects the refrigerant, it is determined that the location where the refrigerant leaks is the pipeline of the drying equipment.

[0038] Specifically, the second refrigerant detector is installed around the pipeline of the drying equipment, and the detection range is the entire pipeline. Therefore, when the second refrigerant detector detects the refrigerant, it can be determined that the pipeline has leaked. Therefore, when it is determined that the second refrigerant detector detects the refrigerant, it is determined that the location where the refrigerant leaks is the pipeline of the drying equipment.

[0039] Step 1013: when it is determined that both the first refrigerant detector and the second refrigerant detector detect the refrigerant, determine that the location where the refrigerant leaks is the target location of the refrigerant transmission path of the drying device.

[0040] The target locations include the pipelines of the drying equipment and the inside of the condenser.

[0041] Specifically, when both the first refrigerant detector and the second refrigerant detector detect refrigerant, it can be determined that leakage has occurred in the pipeline and the condenser. Therefore, when it is determined that both the first refrigerant detector and the second refrigerant detector detect refrigerant, the location where the refrigerant leakage occurs is determined to be the target location of the refrigerant transmission path of the drying equipment.

[0042] Optionally, when it is determined that the location where the refrigerant leaks is the target location of the refrigerant transmission path of the drying equipment, the drying equipment is controlled to shut down.

[0043] Specifically, when it is determined that the location where the refrigerant leaks is the target location of the refrigerant transmission path of the drying equipment, closing the first control valve or closing the second control valve cannot improve the leakage. Therefore, the drying equipment is controlled to stop at this time to avoid accelerated leakage or other dangerous situations caused by the continued operation of the drying equipment.

[0044] Step 102, when it is determined that the location where the refrigerant leaks is the pipeline of the drying equipment, close the first control valve of the drying equipment, and control the compressor of the drying equipment to send the remaining refrigerant in the pipeline into the condenser of the drying equipment.

[0045] Wherein, the first control valve is located at the output port of the condenser.

[0046] Specifically, the refrigerant transmission path starts from the condenser, and the refrigerant passes through the condenser, the first control valve, the evaporator, the compressor, the second control valve, and then returns to the condenser. Therefore, when it is determined that the location where the refrigerant leaks is the pipeline of the drying equipment, the first control valve of the drying equipment is closed, and the remaining refrigerant in the refrigerant transmission path cannot continue to the next device after being transmitted to the condenser, and will be stored in the condenser. At this time, the compressor of the drying equipment is controlled to continue working, and the remaining refrigerant in the pipeline can be sent to the inside of the condenser, avoiding further leakage and reducing the risk of using the drying equipment.

[0047] Step 103: When it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, the second control valve of the drying device is closed, and the compressor is turned off.

[0048] Wherein, the second control valve is located at the input port of the condenser.

[0049] Specifically, the preset pressure is the suction pressure of the compressor when there is no residual gas in the preset pipeline. When it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, it means that the gas in the pipeline has been compressed into the condenser by the compressor, and there is no residual refrigerant in the pipeline. At this time, closing the second control valve of the drying equipment and turning off the compressor can store all the refrigerant in the condenser to avoid further leakage.

[0050] For example, when it is determined that the location where the refrigerant leaks is the pipeline of the drying equipment, the electronic expansion valve 1 of the drying equipment is closed, and the compressor of the drying equipment is controlled to send the remaining refrigerant in the pipeline into the condenser. When the suction pressure of the compressor is less than or equal to the preset pressure A, the electronic expansion valve 2 of the drying equipment is closed, and the compressor is turned off, so that all the remaining refrigerant in the pipeline enters the condenser.

[0051] The scheme of the present application is applied to a drying device, and the refrigerant transmission path of the drying device is detected to determine the location where the refrigerant leaks when the refrigerant leaks; when it is determined that the location where the refrigerant leaks is the pipeline of the drying device, the first control valve of the drying device is closed, and the compressor of the drying device is controlled to send the remaining refrigerant in the pipeline into the interior of the condenser of the drying device; wherein the first control valve is located at the output port of the condenser; when it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, the second control valve of the drying device is closed, and the compressor is turned off; wherein the second control valve is located at the input port of the condenser. That is, the scheme of the present application, on the one hand, by detecting the refrigerant transmission path of the drying device, the location where the refrigerant leaks when the refrigerant leaks can be more clearly obtained, which is convenient for taking different operations for different locations during maintenance. On the other hand, when it is determined that the location where the refrigerant leaks is the pipeline of the drying device, the first control valve is first closed, and the compressor is controlled to send the remaining refrigerant in the pipeline into the interior of the condenser, and then when the suction pressure of the compressor is less than or equal to the preset pressure, the second control valve is closed, and the compressor is turned off, which improves the intelligence of the drying device and enhances the user experience. And the remaining refrigerant in the pipeline can be sent to the condenser to prevent further leakage, thereby reducing the risk of refrigerant use and improving the safety factor of the drying equipment.

[0052] Figure 2 is another schematic diagram of the process of handling refrigerant leakage provided by the present application. Figure 1 Based on the illustrated embodiment and various optional implementation schemes, the content of warning to the user when a leak is detected is described in detail, and the setting of the backup power supply of the drying equipment is described in detail.

[0053] like Figure 2 As shown, the method may include the following steps:

[0054] Step 201 , detecting the refrigerant transmission path of the drying equipment, and if refrigerant leakage is detected, sending a refrigerant leakage alarm message to the user.

[0055] Specifically, the detection of the refrigerant transmission path of the drying equipment can be completed by a refrigerant detector installed on the refrigerant transmission path. When a refrigerant leak is detected, since the refrigerant leak has a certain risk, a refrigerant leak alarm message should be sent to the user in a timely manner.

[0056] Exemplarily, if a refrigerant leak is detected, refrigerant leak information is sent to the user's mobile terminal, and a beep sound is emitted to alert the user.

[0057] Step 202, determining the location where the refrigerant leaks.

[0058] Specifically, the position where the amount of refrigerant reduction is greater than a preset reduction threshold can be determined by detection, and the position can be determined as the position where the refrigerant leaks. The position where the refrigerant leaks can also be determined by a first refrigerant detector installed within a first preset range of the condenser and a second refrigerant detector installed near a second preset range of the pipeline. The first preset range of the condenser is the range within which the first refrigerant detector can determine whether a refrigerant leak occurs inside the condenser, and the second preset range of the pipeline is the range within which the second refrigerant detector can determine whether a refrigerant leak occurs inside the pipeline.

[0059] Step 203, when it is determined that the location where the refrigerant leaks is the pipeline of the drying equipment, it is determined whether the drying equipment is in a power-off state.

[0060] Specifically, when it is determined that the location where the refrigerant leaks is the pipeline of the drying equipment, it is determined whether the drying equipment is in a power outage state through the power supply state inside the drying equipment.

[0061] Exemplarily, when it is determined that the location where the refrigerant leaks is a pipeline of the drying equipment, it is determined whether the drying equipment is in a power-off state by the current inside the drying equipment.

[0062] Step 204, when it is determined that the drying equipment is in a power outage state, start the backup power supply and turn on the compressor.

[0063] Wherein, the drying equipment comprises a backup power supply, and the backup power supply is used to supply power to the drying equipment.

[0064] Specifically, the backup power supply is a device that provides emergency power to the drying device, and for example, the backup power supply can be a large-capacity battery. When it is determined that the drying device is in a power outage state, the backup power supply is started, and the compressor that has been turned off due to the previous power outage is turned on, so that the compressor sends the remaining refrigerant in the pipeline into the interior of the condenser.

[0065] Optionally, when it is determined that the location where the refrigerant leaks is inside the condenser, steps 1 to 2 may be performed before the refrigerant leak is handled.

[0066] Step 1, determine whether the drying equipment is in a power outage state.

[0067] Specifically, when it is determined that the location where the refrigerant leaks is inside the condenser, it is determined whether the drying device is in a power outage state through the power supply state inside the drying device.

[0068] Step 2: When it is determined that the drying equipment is in a power outage state, start the backup power supply.

[0069] Specifically, the backup power supply is a device for emergency power supply to the drying device, and for example, the backup power supply can be a large-capacity battery. When it is determined that the drying device is in a power outage state, the backup power supply is started so that the first control valve and the second control valve can be closed.

[0070] Step 205, closing the first control valve of the drying device, and controlling the compressor of the drying device to send the remaining refrigerant in the pipeline into the condenser of the drying device.

[0071] Specifically, when it is determined that the location of the refrigerant leakage is the pipeline of the drying equipment, the first control valve of the drying equipment is closed, and the remaining refrigerant in the refrigerant transmission path cannot continue to flow to the next device after being transmitted to the condenser, and will be stored in the condenser. At this time, the compressor of the drying equipment is controlled to continue working, and the remaining refrigerant in the pipeline can be sent to the inside of the condenser, avoiding further leakage and reducing the risk of using the drying equipment.

[0072] Step 206: When it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, the second control valve of the drying device is closed, and the compressor is turned off.

[0073] Specifically, the preset pressure is the suction pressure of the compressor when there is no residual gas in the preset pipeline. When it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, it means that the gas in the pipeline has been compressed into the condenser by the compressor, and there is no residual refrigerant in the pipeline. At this time, closing the second control valve of the drying equipment and turning off the compressor can store all the refrigerant in the condenser to avoid further leakage.

[0074] It should be understood that although Figure 2 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 2At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages do not necessarily have to be executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages does not have to be performed sequentially, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0075] The solution of the present application is applied to drying equipment, and warns the user when a leak is detected, reminding the user that the current environment is dangerous due to refrigerant leakage, further improving the safety factor of the drying equipment. When the drying equipment is in a power outage state, the backup power supply is started, avoiding the situation where the drying equipment in the power outage state cannot handle the leaked refrigerant, thereby enhancing the reliability of the drying equipment.

[0076] Figure 3a It is a structural schematic diagram of the drying equipment provided in the present application, which is used to execute the refrigerant leakage processing method provided in any of the above embodiments.

[0077] The drying equipment includes a controller, a condenser, a compressor, a pipeline, an evaporator, a first control valve and a second control valve. The compressor, the first control valve and the second control valve are all connected to the controller. The output end of the compressor, the second control valve, the condenser, the first control valve and the input end of the evaporator are connected in sequence through the pipeline, and the output end of the evaporator is also connected to the input end of the compressor. The controller is used to execute the refrigerant leakage processing method provided in any of the above embodiments. The compressor is used to send the remaining refrigerant inside the pipeline into the interior of the condenser under the control of the controller. The first control valve and the second control valve are both used to close under the control of the controller.

[0078] Figure 3b It is another structural schematic diagram of the drying equipment provided in this application.

[0079] Alternatively, if Figure 3b As shown, the drying device further includes a first refrigerant detector and a second refrigerant detector. When the first refrigerant detector detects the refrigerant, the location where the refrigerant leaks is determined to be inside the condenser of the drying device. When the second refrigerant detector detects the refrigerant, the location where the refrigerant leaks is determined to be the pipeline of the drying device. When both the first refrigerant detector and the second refrigerant detector detect the refrigerant, the location where the refrigerant leaks is determined to be the target location of the refrigerant transmission path of the drying device.

[0080] Alternatively, if Figure 3b As shown, the drying device also includes a backup power supply. When it is determined that the drying device is in a power outage state, the backup power supply is used to supply power to the drying device.

[0081] For example, Figure 3bAs shown, the drying device includes a compressor 1, a first electronic expansion valve 2, a condenser 3, a second electronic expansion valve 4, a capillary component 5, an evaporator 6, a first refrigerant detector 7, a backup power supply 8, and a second refrigerant detector 9. The second electronic expansion valve 4 is the first control valve in the aforementioned embodiment, and the first electronic expansion valve 2 is the second control valve in the aforementioned embodiment. The first refrigerant detector 7 detects whether the refrigerant leaks inside the condenser 3, and the second refrigerant detector 9 detects whether the refrigerant leaks from the pipeline. The capillary component 5 is a part of the drying device for reducing pressure. When the first refrigerant detector 7 detects that the refrigerant leaks inside the condenser 3, it is determined whether the drying device is in a power-off state. If it is in a power-off state, the backup power supply 8 is turned on, and the first electronic expansion valve 2 and the second electronic expansion valve 4 are turned off, so that the remaining refrigerant is stored between the second electronic expansion valve 4, the capillary component 5, the evaporator 6, the compressor 1 and the first electronic expansion valve 2. When the second refrigerant detector 9 detects that the refrigerant leaks from the pipeline, it is determined whether the drying device is in a power-off state. If the power is off, turn on the backup power supply 8, close the second electronic expansion valve 4 and turn on the compressor 1, so that the compressor 1 delivers the remaining refrigerant in the pipeline to the inside of the condenser 3. When it is determined that the suction pressure of the compressor 1 is less than or equal to the preset pressure, close the first electronic expansion valve 2, and turn off the compressor 1, so that all the remaining refrigerant in the pipeline enters the inside of the condenser 3.

[0082] The specific working process and the beneficial effects that can be achieved of the drying equipment in this embodiment and various optional implementation methods can refer to the corresponding process and beneficial effects in the aforementioned method embodiment, and will not be repeated here.

[0083] Figure 4 is a schematic diagram of a refrigerant leakage treatment device provided in the present application, and the device is suitable for executing the refrigerant leakage treatment method provided in the present application. The refrigerant leakage treatment device is configured in a drying device, such as Figure 4 As shown, the device may specifically include:

[0084] The position determination module 301 is used to detect the refrigerant transmission path of the drying equipment and determine the position where the refrigerant leaks when the refrigerant leaks.

[0085] The first closing module 302 is used to close the first control valve of the drying equipment when it is determined that the location where the refrigerant leaks is the pipeline of the drying equipment, and control the compressor of the drying equipment to send the remaining refrigerant inside the pipeline into the condenser of the drying equipment; wherein the first control valve is located at the output port of the condenser.

[0086] The second closing module 303 is used to close the second control valve of the drying device and the compressor when it is determined that the suction pressure of the compressor is less than or equal to a preset pressure; wherein the second control valve is located at the input port of the condenser.

[0087] In one embodiment, the device also includes: a third closing module, which is used to close the first control valve and the second control valve when it is determined that the location where the refrigerant leaks is inside the condenser, and to close the compressor of the drying equipment, so that the remaining refrigerant is stored between the first control valve, the evaporator, the compressor and the second control valve.

[0088] In one embodiment, the device also includes: a shutdown module, which is used to control the drying equipment to shut down when it is determined that the location where the refrigerant leaks is the target location of the refrigerant transmission path of the drying equipment; wherein the target location includes: the pipeline of the drying equipment and the inside of the condenser.

[0089] In one embodiment, the drying device includes a first refrigerant detector and a second refrigerant detector, and the position determination module 301 is specifically used to: when it is determined that the first refrigerant detector detects the refrigerant, determine that the location where the refrigerant has leaked is inside the condenser of the drying device; when it is determined that the second refrigerant detector detects the refrigerant, determine that the location where the refrigerant has leaked is a pipeline of the drying device; when it is determined that both the first refrigerant detector and the second refrigerant detector detect the refrigerant, determine that the location where the refrigerant has leaked is the target location of the refrigerant transmission path of the drying device.

[0090] In one embodiment, the drying equipment includes a backup power supply; before the first closing module 302 closes the first control valve of the drying equipment and controls the compressor of the drying equipment to deliver the remaining refrigerant inside the pipeline into the inside of the condenser of the drying equipment, it is also used to: determine whether the drying equipment is in a power outage state; when it is determined that the drying equipment is in a power outage state, start the backup power supply and turn on the compressor; wherein the backup power supply is used to supply power to the drying equipment.

[0091] In one embodiment, before closing the first control valve and the second control valve, the third closing module is further used to: determine whether the drying device is in a power outage state; and start the backup power supply when it is determined that the drying device is in a power outage state.

[0092] In one embodiment, after the location determination module 301 detects the refrigerant transmission path of the drying device, it is further configured to: send a refrigerant leakage alarm message to the user if the refrigerant leakage is detected.

[0093] 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 for illustration. 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 functional modules described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0094] The device of the present application is configured in a drying device, detects the refrigerant transmission path of the drying device, determines the location where the refrigerant leaks when the refrigerant leaks; when it is determined that the location where the refrigerant leaks is the pipeline of the drying device, closes the first control valve of the drying device, and controls the compressor of the drying device to send the remaining refrigerant in the pipeline into the interior of the condenser of the drying device; wherein the first control valve is located at the output port of the condenser; when it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, closes the second control valve of the drying device, and turns off the compressor; wherein the second control valve is located at the input port of the condenser. That is, the scheme of the present application, on the one hand, by detecting the refrigerant transmission path of the drying device, determining the location where the refrigerant leaks when the refrigerant leaks, can more clearly obtain the specific location of the refrigerant leak, and facilitate different operations for different locations during maintenance. On the other hand, when it is determined that the location where the refrigerant leaks is the pipeline of the drying device, first close the first control valve, control the compressor to send the remaining refrigerant in the pipeline into the interior of the condenser, and then when the suction pressure of the compressor is less than or equal to the preset pressure, close the second control valve, and turn off the compressor, which improves the intelligence of the drying device and enhances the user experience. And the remaining refrigerant in the pipeline can be sent to the condenser to prevent further leakage, thereby reducing the risk of refrigerant use and improving the safety factor of the drying equipment.

[0095] The present application also provides a computer-readable medium having a computer program stored thereon, and when the program is executed by a processor, the refrigerant leakage processing method provided in any of the above embodiments is implemented.

[0096] Reference below Figure 5 , which shows a schematic structural diagram of a drying device 400 suitable for implementing the present application. Figure 5 The drying device shown is only an example and should not bring any limitation to the function and scope of use of the present application.

[0097] like Figure 5As shown, the drying device 400 includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 402 or a program loaded from a storage part 408 into a random access memory (RAM) 403. In the RAM 403, various programs and data required for the operation of the drying device 400 are also stored. The CPU 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0098] The following components are connected to the I / O interface 405: an input section 406 including a keyboard, a mouse, etc.; an output section 407 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN card, a modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as needed. A removable medium 411, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 410 as needed, so that a computer program read therefrom is installed into the storage section 408 as needed.

[0099] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 409, and / or installed from the removable medium 411. When the computer program is executed by the central processing unit (CPU) 401, the above-mentioned functions defined in the system of the present application are executed.

[0100] It should be noted that the computer-readable medium shown in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable program code is carried. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0101] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the above-mentioned module, program segment or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0102] The modules and / or units described in this application may be implemented in software or hardware. The modules and / or units described may also be provided in a processor, for example, may be described as: a processor including a position determination module, a first closing module, and a second closing module. The names of these modules do not, in some cases, constitute limitations on the modules themselves.

[0103] As another aspect, the present application further provides a computer-readable medium, which may be included in the device described in the above embodiment; or may exist independently without being assembled into the device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by a device, the device includes:

[0104] The refrigerant transmission path of the drying equipment is detected to determine the location where the refrigerant leaks; when it is determined that the location where the refrigerant leaks is the pipeline of the drying equipment, the first control valve of the drying equipment is closed, and the compressor of the drying equipment is controlled to send the remaining refrigerant inside the pipeline into the condenser of the drying equipment; wherein the first control valve is located at the output port of the condenser; when it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, the second control valve of the drying equipment is closed, and the compressor is turned off; wherein the second control valve is located at the input port of the condenser.

[0105] According to the technical solution of the present application, the drying equipment is applied to detect the refrigerant transmission path of the drying equipment, determine the location of the refrigerant leakage when the refrigerant leaks; when it is determined that the location of the refrigerant leakage is the pipeline of the drying equipment, close the first control valve of the drying equipment, and control the compressor of the drying equipment to send the remaining refrigerant in the pipeline into the interior of the condenser of the drying equipment; wherein the first control valve is located at the output port of the condenser; when it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, close the second control valve of the drying equipment, and turn off the compressor; wherein the second control valve is located at the input port of the condenser. That is, the solution of the present application, on the one hand, by detecting the refrigerant transmission path of the drying equipment, determine the location of the refrigerant leakage when the refrigerant leaks, the specific location of the refrigerant leakage can be more clearly obtained, which is convenient for taking different operations for different locations during maintenance. On the other hand, when it is determined that the location of the refrigerant leakage is the pipeline of the drying equipment, first close the first control valve, control the compressor to send the remaining refrigerant in the pipeline into the interior of the condenser, and then when the suction pressure of the compressor is less than or equal to the preset pressure, close the second control valve, and turn off the compressor, which improves the intelligence of the drying equipment and enhances the user experience. And the remaining refrigerant in the pipeline can be sent to the condenser to prevent further leakage, thereby reducing the risk of refrigerant use and improving the safety factor of the drying equipment.

[0106] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A method for handling refrigerant leakage, characterized in that: Applied to drying equipment, the method comprises: Detecting the refrigerant transmission path of the drying equipment to determine the location where the refrigerant leaks; When it is determined that the location where the refrigerant leaks is the pipeline of the drying device, the first control valve of the drying device is closed, and the compressor of the drying device is controlled to send the remaining refrigerant in the pipeline into the condenser of the drying device; wherein the first control valve is located at the output port of the condenser; When it is determined that the suction pressure of the compressor is less than or equal to the preset pressure, the second control valve of the drying device is closed, and the compressor is closed; wherein the second control valve is located at the input port of the condenser.

2. The method according to claim 1, characterized in that: The method further comprises: When it is determined that the refrigerant leaks inside the condenser, the first control valve and the second control valve are closed, and the compressor of the drying equipment is turned off so that the remaining refrigerant is stored between the first control valve, the evaporator, the compressor and the second control valve.

3. The method according to claim 2, characterized in that The method further comprises: When it is determined that the location where the refrigerant leaks is the target location of the refrigerant transmission path of the drying equipment, the drying equipment is controlled to shut down; wherein the target location includes: the pipeline of the drying equipment and the inside of the condenser.

4. The method according to claim 3, characterized in that The drying device includes a first refrigerant detector and a second refrigerant detector. The detection of the refrigerant transmission path of the drying device to determine the location where the refrigerant leaks when the refrigerant leaks includes: When it is determined that the first refrigerant detector detects the refrigerant, determining that the location where the refrigerant leaks is inside the condenser of the drying device; When it is determined that the second refrigerant detector detects the refrigerant, determining that the location where the refrigerant leaks is a pipeline of the drying equipment; When it is determined that both the first refrigerant detector and the second refrigerant detector detect the refrigerant, the location where the refrigerant leaks is determined to be the target location of the refrigerant transmission path of the drying device.

5. The method according to claim 2, characterized in that: The drying equipment includes a backup power supply; Before closing the first control valve of the drying device and controlling the compressor of the drying device to send the remaining refrigerant in the pipeline into the condenser of the drying device, the method further includes: Determining whether the drying equipment is in a power outage state; When it is determined that the drying device is in a power outage state, the backup power supply is started and the compressor is turned on; wherein the backup power supply is used to supply power to the drying device.

6. The method according to claim 5, characterized in that Before closing the first control valve and the second control valve, the method further includes: Determining whether the drying equipment is in a power outage state; When it is determined that the drying equipment is in a power outage state, the backup power supply is started.

7. The method according to any one of claims 1 to 6, characterized in that: After detecting the refrigerant transmission path of the drying equipment, the method further includes: If the refrigerant leakage is detected, a refrigerant leakage alarm message is sent to the user.

8. A drying device, characterized in that: The invention comprises a controller, a condenser, a compressor, a pipeline, an evaporator, a first control valve and a second control valve; wherein the compressor, the first control valve and the second control valve are all connected to the controller; the output end of the compressor, the second control valve, the condenser, the first control valve and the input end of the evaporator are sequentially connected through the pipeline, and the output end of the evaporator is also connected to the input end of the compressor; The controller is used to execute the refrigerant leakage processing method according to any one of claims 1 to 7; The compressor is used to send the remaining refrigerant in the pipeline into the interior of the condenser under the control of the controller; The first control valve and the second control valve are both used to close under the control of the controller.

9. A refrigerant leakage treatment device, characterized in that: Configured in drying equipment, including: A position determination module, used to detect the refrigerant transmission path of the drying equipment and determine the position where the refrigerant leaks when the refrigerant leaks; A first closing module is used to close a first control valve of the drying device when it is determined that the location where the refrigerant leaks is the pipeline of the drying device, and control the compressor of the drying device to send the remaining refrigerant in the pipeline into the condenser of the drying device; wherein the first control valve is located at the output port of the condenser; The second closing module is used to close the second control valve of the drying device and the compressor when it is determined that the suction pressure of the compressor is less than or equal to a preset pressure; wherein the second control valve is located at the input port of the condenser.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the refrigerant leakage processing method according to any one of claims 1 to 7 is implemented.

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