Clothes processing equipment and refrigerant explosion-proof method

Abstract

The invention relates to the technical field of clothes treatment, in particular to clothes treatment equipment and a refrigerant explosion-proof method. The clothes treatment equipment comprises a treatment barrel, a base, a heat pump system, a refrigerant detection device and a ventilation device, the treatment barrel is used for containing clothes to be treated, a circulation air duct and a mounting cavity which are mutually independently arranged are arranged in the base, the circulation air duct communicates with the treatment barrel, and part of the heat pump system is located in the circulation air duct; the heat pump system is used for drying to-be-treated clothes in the treatment barrel, the remaining part of the heat pump system is located in the mounting cavity, the refrigerant detection device is arranged in the mounting cavity and used for detecting the concentration of a refrigerant in the mounting cavity, and when the refrigerant detection device detects that the concentration of the refrigerant is not zero, the ventilation device ventilates the mounting cavity. The refrigerant explosion-proof method is applied to the clothes processing equipment, refrigerant leakage can be found in time, the installation cavity with leaked refrigerant is ventilated in time, the refrigerant is prevented from gathering and exploding in the installation cavity, and the safety of the clothes processing equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing, and in particular to clothing processing equipment and a refrigerant explosion-proof method. Background Art

[0002] In the process of drying clothes, the clothing treatment equipment usually adopts a heat pump system to achieve the drying operation of the clothes to be treated. In order to ensure the environmental performance of the heat pump system, the refrigerant for heat exchange in the heat pump system usually adopts R290 (propane). R290 is a new green and environmentally friendly refrigerant, but R290 is a flammable gas. Under certain conditions, it is dangerous to burn and explode when it encounters a heat source or open flame. In addition, the refrigerant in the heat pump system will inevitably leak during the circulation and heat exchange process. The leaked refrigerant is easy to accumulate in the installation cavity of the base of the clothing treatment equipment. Due to the small space of the installation cavity, the leaked refrigerant is easy to cause safety hazards.

[0003] Therefore, there is an urgent need for a clothing processing device and a refrigerant explosion-proof method to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a clothing processing device and a refrigerant explosion-proof method, so as to timely discover the problem of refrigerant leakage and promptly ventilate the installation cavity where the refrigerant is leaking, so as to avoid the refrigerant from gathering and exploding in the installation cavity, thereby improving the safety of the clothing processing equipment.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A clothes processing device, comprising:

[0007] A treatment drum, used for containing clothes to be treated;

[0008] A base, wherein the base is provided with air flow passages and a mounting cavity which are independently arranged from each other, and the air flow passages are communicated with the treatment cylinder;

[0009] a heat pump system, part of which is located in the air flow duct, the heat pump system being configured to dry the clothes to be processed in the processing drum, and the remaining part of which is located in the installation cavity;

[0010] a refrigerant detection device, disposed in the installation cavity, the refrigerant detection device being configured to detect the concentration of the refrigerant in the installation cavity; and

[0011] A ventilation device is configured to ventilate the installation cavity when the refrigerant detection device detects that the concentration of the refrigerant is not zero.

[0012] As a preferred solution, the ventilation device comprises:

[0013] A ventilation fan is installed on the cavity wall of the installation cavity. When the refrigerant detection device detects that the concentration of the refrigerant is not zero, the ventilation fan is configured to ventilate the installation cavity.

[0014] As a preferred solution, a plurality of ventilation holes are spaced apart on the cavity wall of the installation cavity.

[0015] As a preferred solution, the clothes processing device further includes:

[0016] A protective cover is arranged in the installation cavity, and the protective cover covers the electronic components in the base.

[0017] As a preferred solution, the clothes processing device further includes:

[0018] A fire extinguishing container is installed in the installation cavity. The fire extinguishing container is filled with liquid carbon dioxide. When the refrigerant detection device detects that the concentration of the refrigerant reaches a preset concentration, the fire extinguishing container releases the liquid carbon dioxide.

[0019] As a preferred solution, the clothes processing device further includes:

[0020] The alarm component is configured to issue an alarm when the refrigerant detection device detects that the concentration of the refrigerant reaches a preset concentration.

[0021] As a preferred solution, the clothes processing device further includes:

[0022] A control panel is communicatively connected to the refrigerant detection device, and the control panel can display the detection value of the refrigerant detection device in real time.

[0023] A refrigerant explosion-proof method is applied to the above-mentioned clothing processing equipment, and the refrigerant explosion-proof method comprises the following steps:

[0024] After the drying process is started, the refrigerant detection device detects the concentration of the refrigerant in the installation cavity;

[0025] When the refrigerant detection device detects that the concentration of the refrigerant is not zero, the ventilation device ventilates the installation cavity.

[0026] As a preferred solution, when the refrigerant detection device detects that the concentration of the refrigerant reaches a preset value, the drying process stops, and the ventilation device still ventilates the installation cavity.

[0027] As a preferred solution, when the refrigerant detection device detects that the concentration of the refrigerant reaches a preset value, the fire extinguishing container releases liquid carbon dioxide in the installation cavity, and the alarm component issues a warning.

[0028] Beneficial effects of the present invention:

[0029] The clothing processing equipment provided by the present invention includes a processing drum, a base, a heat pump system, a refrigerant detection device and a ventilation device. The processing drum is used to accommodate clothing to be processed. The base is provided with air flow ducts and an installation cavity which are independently arranged from each other. The air flow duct is connected with the processing drum. Part of the heat pump system is located in the air flow duct. The heat pump system is used to dry the clothing to be processed in the processing drum. The remaining part of the heat pump system is located in the installation cavity. The refrigerant detection device is arranged in the installation cavity. The refrigerant detection device is used to detect the concentration of the refrigerant in the installation cavity. When the refrigerant detection device detects that the concentration of the refrigerant is not zero, the ventilation device ventilates the installation cavity, thereby timely discovering the problem of refrigerant leakage, and timely ventilating the installation cavity with refrigerant leakage through the ventilation device, so as to avoid the refrigerant from gathering and exploding in the installation cavity, thereby improving the safety of the clothing processing equipment.

[0030] The refrigerant explosion-proof method provided by the present invention is applied to the above-mentioned clothing processing equipment. After the drying program is started, the refrigerant detection device detects the concentration of the refrigerant in the installation cavity. When the refrigerant detection device detects that the concentration of the refrigerant is not zero, the ventilation device ventilates the installation cavity, thereby promptly discovering the problem of refrigerant leakage, and promptly ventilating the installation cavity with refrigerant leakage to avoid the refrigerant from gathering and exploding in the installation cavity, thereby improving the safety of the use of the clothing processing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of a clothes processing device provided by an embodiment of the present invention;

[0032] Figure 2 is a partial structural cross-sectional view of a clothes processing device provided by an embodiment of the present invention;

[0033] Figure 3 It is a flow chart of the refrigerant explosion-proof method provided in an embodiment of the present invention.

[0034] In the figure:

[0035] 1. Processing cylinder; 2. Base; 21. Air flow duct; 22. Installation cavity; 221. Ventilation port; 3. Heat pump system; 31. Evaporator; 32. Condenser; 4. Refrigerant detection device; 5. Ventilation device; 6. Protective cover; 7. Fire extinguishing container; 8. Control panel; 9. Shell. DETAILED DESCRIPTION

[0036] In order to make the technical problem solved by the present invention, the technical solution adopted and the technical effect achieved more clearly, the technical solution of the present invention is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] like Figure 1 and Figure 2 As shown, this embodiment provides a clothing processing device, mainly referring to a heat pump dryer, which includes a processing drum 1, a base 2 and a heat pump system 3, wherein the processing drum 1 is used to accommodate clothing to be processed, the base 2 is located at the bottom of the processing drum 1, and the base 2 is provided with air flow ducts 21 and an installation cavity 22 that are independently arranged from each other, the air flow duct 21 is connected to the processing drum 1, part of the heat pump system 3 is located in the air flow duct 21, the heat pump system 3 is used to dry the clothing to be processed in the processing drum 1, and the remaining part of the heat pump system 3 is located in the installation cavity 22.

[0041] Specifically, the heat pump system 3 includes an evaporator 31 and a condenser 32 arranged adjacent to each other, and both the evaporator 31 and the condenser 32 are arranged in the air flow duct 21, wherein the evaporator 31 can perform heat exchange with the hot and humid air circulating inside the evaporator 31, absorb heat from the hot and humid air, thereby cooling the hot and humid air and condensing the water vapor in the hot and humid air into water, and a refrigerant is introduced into the condenser 32, and the refrigerant can release heat in the condenser 32, and the released heat can heat the gas circulating in the condenser 32. Therefore, the evaporator 31 can dry the humid gas discharged from the treatment tube 1, and the condenser 32 can heat the gas discharged from the evaporator 31, so that the gas in the air flow duct 21 is dehumidified into dry air through the evaporator 31, heated into dry hot air through the condenser 32, and becomes humid air through the inside of the treatment tube 1, and then dehumidified by the evaporator 31 to form a clothes drying cycle.

[0042] It should be noted that in order to ensure that the heat pump system 3 can be continuously charged with refrigerant and realize the circulation of the refrigerant, the heat pump system 3 also includes a connecting pipeline (not shown in the figure), a compressor (not shown in the figure) and an electronic expansion valve (not shown in the figure), wherein the evaporator 31 and the condenser 32 form a circulation through the connecting pipeline, and the compressor and the electronic expansion valve are arranged on the connecting pipeline, the compressor and the electronic expansion valve are both located in the installation cavity 22, and the connecting pipeline is passed between the installation cavity 22 and the air flow duct 21. The electronic expansion valve serves as a throttling element in the heat pump system 3, which can regulate the flow rate of the refrigerant in the heat pump system 3 to ensure that the heat pump system 3 always operates efficiently and reliably throughout the entire drying cycle.

[0043] It should be noted that in this embodiment, in order to ensure the environmental performance of the heat pump system 3, the refrigerant used for heat exchange in the heat pump system 3 is R290 (propane), the ozone depletion potential of R290 is zero, and the global warming potential of R290 is only 3, which is a new type of green and environmentally friendly refrigerant.

[0044] During the circulation and heat exchange process of the refrigerant in the heat pump system 3, leakage is inevitable. A part of the refrigerant will circulate in the treatment tube 1 along the flow duct 21, and a part of the refrigerant will leak into the installation cavity 22. Since R290 is a flammable gas and the volume of the treatment tube 1 is large, the refrigerant leaked into the flow duct 21 is not dangerous. However, the space of the installation cavity 22 is small. After the refrigerant leaked in the installation cavity 22 gathers, it may burn and explode when encountering a heat source or open flame under certain conditions, which may easily cause safety hazards.

[0045] In order to solve the above problems, Figure 1 and Figure 2As shown, the clothing processing equipment provided by this embodiment also includes a refrigerant detection device 4 and a ventilation device 5, wherein the refrigerant detection device 4 is arranged in the installation cavity 22, and the refrigerant detection device 4 is used to detect the concentration of the refrigerant in the installation cavity 22. When the refrigerant detection device 4 detects that the concentration of the refrigerant is not zero, the ventilation device 5 ventilates the installation cavity 22, thereby timely ventilating the refrigerant leaked into the installation cavity 22, avoiding the refrigerant from gathering and exploding in the installation cavity 22, and improving the safety of the clothing processing equipment. In addition, the provision of the refrigerant detection device 4 also facilitates users to promptly discover the problem of refrigerant leakage to avoid danger. Specifically, the refrigerant detection device 4 can be an R290 concentration sensor, which has the advantage of sensitive detection.

[0046] In this embodiment, if Figure 1 and Figure 2 As shown, the ventilation device 5 includes a ventilation fan, which is installed on the wall of the installation cavity 22. The ventilation fan is communicatively connected with the refrigerant detection device 4. When the refrigerant detection device 4 detects that the concentration of the refrigerant is not zero, the ventilation fan is turned on to ventilate the installation cavity 22.

[0047] Preferably, in this embodiment, if Figure 2 As shown, a plurality of vents 221 are spaced apart on the cavity wall of the installation cavity 22. The design of the vents 221 facilitates the discharge of the refrigerant leaking into the installation cavity 22, and the setting of the vents 221 is also conducive to ventilation and heat dissipation of the compressor in the heat pump system 3.

[0048] Preferably, in this embodiment, the ventilation fan is arranged adjacent to the bottom wall of the installation cavity 22, and the vent 221 is opened on the bottom wall of the installation cavity 22. Since the density of gaseous R290 is greater than that of air, once the refrigerant leaks, it tends to sink, thereby making it easier to discharge the leaked refrigerant.

[0049] In this embodiment, if Figure 2 As shown, the clothing treatment device further includes a protective cover 6, which is disposed in the mounting cavity 22, and the protective cover 6 covers the electronic components in the base 2, thereby preventing the leaked refrigerant from entering the protective cover 6 and contacting the electronic components that are prone to sparks, thereby avoiding the risk of explosion of the refrigerant. In addition, by arranging the electronic components in the protective cover 6, it is more beautiful and convenient to organize the electronic components. It should be noted that the electronic components can be connecting wires, drive boards, etc.

[0050] In addition, if Figure 2As shown, the clothing treatment device also includes a fire extinguishing container 7, which is installed in the installation cavity 22. The fire extinguishing container 7 is filled with liquid carbon dioxide. When the refrigerant detection device 4 detects that the concentration of the refrigerant reaches a preset concentration, the fire extinguishing container 7 releases liquid carbon dioxide, so that the released liquid carbon dioxide is fully mixed with the leaked refrigerant. Carbon dioxide can inert the refrigerant by controlling the limiting oxygen concentration, thereby reducing the possibility of refrigerant explosion. In addition, the released liquid carbon dioxide can also reduce the temperature of the environment around the refrigerant during the vaporization process, further avoiding the possibility of refrigerant explosion. Specifically, the refrigerant detection device 4 is communicatively connected to the switch valve on the fire extinguishing container 7. When the refrigerant detection device 4 detects that the concentration of the refrigerant reaches a preset concentration, the switch valve is opened according to the detection information of the refrigerant detection device 4 to release the liquid carbon dioxide.

[0051] In addition, in this embodiment, the clothing processing device further includes an alarm component (not shown in the figure), which is connected to the refrigerant detection device 4 in communication. When the refrigerant detection device 4 detects that the concentration of the refrigerant reaches a preset concentration, the alarm component issues an alarm so as to promptly alert the user. Specifically, the alarm component can be a buzzer.

[0052] In this embodiment, if Figure 1 As shown, the clothing treatment device also includes a control panel 8 and a housing 9, wherein the treatment cylinder 1 is arranged inside the housing 9, and the base 2 is located at the bottom of the housing 9, the control panel 8 is arranged on the operating surface of the housing 9, and the control panel 8 is connected to the refrigerant detection device 4 for communication, and the control panel 8 can display the detection value of the refrigerant detection device 4 in real time, so as to facilitate the user to observe the leakage of the refrigerant in time and realize the visualization of the refrigerant leakage information. Preferably, in this embodiment, it can be set through a preset program so that the control panel 8 can display the corresponding operation while displaying the detection value of the refrigerant detection device 4. For example, when the refrigerant detection device 4 detects that the concentration of the refrigerant is not zero but has not reached the preset value, the control panel 8 can display "Pay attention to ventilation", and when the refrigerant detection device 4 detects that the concentration of the refrigerant reaches the preset value, the control panel 8 can display "Pay attention to open flames and ventilate".

[0053] like Figure 3 As shown, this embodiment also provides a refrigerant explosion-proof method, which is applied to the above-mentioned clothing processing equipment. The refrigerant explosion-proof method includes the following steps:

[0054] After the drying process is started, the refrigerant detection device 4 detects the concentration of the refrigerant in the installation cavity 22;

[0055] When the refrigerant detection device 4 detects that the concentration of the refrigerant is not zero, the ventilation device 5 ventilates the installation cavity 22 .

[0056] The refrigerant explosion-proof method can timely detect the refrigerant leakage problem and timely ventilate the installation cavity 22 where the refrigerant is leaking, thereby preventing the refrigerant from gathering and exploding in the installation cavity 22, thereby improving the safety of the clothing processing equipment.

[0057] It should be noted that when the refrigerant detection device 4 detects that the concentration of the refrigerant is zero, the ventilation device 5 is closed to save energy.

[0058] Preferably, if Figure 3 As shown, when the refrigerant detection device 4 detects that the concentration of the refrigerant reaches a preset value, the drying program stops, and the ventilation device 5 still ventilates the installation cavity 22. While ensuring that the installation cavity 22 is fully ventilated, the drying program is prevented from continuing to run and causing more refrigerant leakage, thereby ensuring the safety of the clothing processing equipment.

[0059] Furthermore, when the refrigerant detection device 4 detects that the concentration of the refrigerant reaches a preset value, the fire extinguishing container 7 releases liquid carbon dioxide in the installation cavity 22, and the alarm component issues an alarm, thereby timely alerting the user. In addition, the fire extinguishing container 7 releases liquid carbon dioxide in the installation cavity 22, so that the released liquid carbon dioxide is fully mixed with the leaked refrigerant. Carbon dioxide can inert the refrigerant by controlling the limiting oxygen concentration, thereby reducing the possibility of refrigerant explosion. Moreover, the released liquid carbon dioxide can also reduce the temperature of the environment surrounding the refrigerant during the vaporization process, further avoiding the possibility of refrigerant explosion.

[0060] It should be noted that when the refrigerant detection device 4 detects that the concentration of the refrigerant has not reached the preset value, the drying program works normally as long as the ventilation device 5 is ensured to be in a ventilation state.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A clothes processing device, characterized in that: include: A treatment drum (1) for containing clothes to be treated; A base (2), wherein a mutually independently arranged air flow passage (21) and a mounting cavity (22) are provided in the base (2), and the air flow passage (21) is in communication with the treatment cylinder (1); a heat pump system (3), part of the heat pump system (3) being located in the air flow passage (21), the heat pump system (3) being configured to dry the clothes to be treated in the treatment drum (1), and the remaining part of the heat pump system (3) being located in the installation cavity (22); A refrigerant detection device (4) is disposed in the installation cavity (22), and the refrigerant detection device (4) is configured to detect the concentration of the refrigerant in the installation cavity (22); as well as A ventilation device (5), when the refrigerant detection device (4) detects that the concentration of the refrigerant is not zero, the ventilation device (5) is configured to ventilate the installation cavity (22).

2. The clothes processing device according to claim 1, characterized in that: The ventilation device (5) comprises: A ventilation fan is installed on the cavity wall of the installation cavity (22), and when the refrigerant detection device (4) detects that the concentration of the refrigerant is not zero, the ventilation fan is configured to ventilate the installation cavity (22).

3. The clothes processing device according to claim 1, characterized in that: A plurality of ventilation openings (221) are arranged at intervals on the cavity wall of the installation cavity (22).

4. The clothes processing device according to any one of claims 1 to 3, characterized in that: The laundry processing device further comprises: A protective cover (6) is arranged in the installation cavity (22), and the protective cover (6) covers the electronic components in the base (2).

5. The clothes processing device according to any one of claims 1 to 3, characterized in that: The laundry processing device further comprises: A fire extinguishing container (7) is installed in the installation cavity (22), and the fire extinguishing container (7) is filled with liquid carbon dioxide. When the refrigerant detection device (4) detects that the concentration of the refrigerant reaches a preset concentration, the fire extinguishing container (7) releases the liquid carbon dioxide.

6. The clothes processing device according to any one of claims 1 to 3, characterized in that: The laundry processing device further comprises: An alarm component is configured to issue an alarm when the refrigerant detection device (4) detects that the concentration of the refrigerant reaches a preset concentration.

7. The clothes processing device according to any one of claims 1 to 3, characterized in that: The laundry processing device further comprises: A control panel (8), wherein the control panel (8) is communicatively connected to the refrigerant detection device (4), and the control panel (8) is capable of displaying the detection value of the refrigerant detection device (4) in real time.

8. A refrigerant explosion-proof method, characterized in that: Applied to the clothing processing device according to any one of claims 1 to 7, the refrigerant explosion-proof method comprises the following steps: After the drying process is started, the refrigerant detection device (4) detects the concentration of the refrigerant in the installation cavity (22); When the refrigerant detection device (4) detects that the concentration of the refrigerant is not zero, the ventilation device (5) ventilates the installation cavity (22).

9. The refrigerant explosion-proof method according to claim 8, characterized in that: When the refrigerant detection device (4) detects that the concentration of the refrigerant reaches a preset value, the drying process stops, and the ventilation device (5) still ventilates the installation cavity (22).

10. The refrigerant explosion-proof method according to claim 8, characterized in that: When the refrigerant detection device (4) detects that the concentration of the refrigerant reaches a preset value, the fire extinguishing container (7) releases liquid carbon dioxide in the installation cavity (22), and the alarm component issues a warning.

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