Refrigeration equipment

Abstract

The refrigeration equipment comprises an air inlet cavity and an air outlet cavity which are located in the bottom of the refrigeration equipment, and the air inlet cavity and the air outlet cavity communicate with external air; a condenser is arranged in the air inlet cavity, a compressor is arranged in the air outlet cavity, a water washing device used for removing dust of the condenser is further arranged in the air inlet cavity, dust on the surface of the condenser is washed away through the water washing device, the heat dissipation efficiency of the condenser can be improved, the service life of the compressor is prolonged, and the heat dissipation efficiency of the compressor is improved. And dust removal water can be remained on the surface of the condenser, so that the temperature of the condenser is reduced, and the energy consumption of the refrigeration equipment is reduced.

Description

Technical Field

[0001] The invention relates to the field of refrigeration equipment, and in particular to a refrigeration equipment with a kettle arranged on a door body. Background Art

[0002] The condenser is one of the main heat exchange equipment in refrigeration equipment. Its task is to cool and condense the high-pressure superheated refrigerant vapor discharged from the compressor into a saturated liquid or even a supercooled liquid by releasing heat to the ambient medium. During long-term use, dust will accumulate on the condenser. The dust adheres to the fins, affecting heat dissipation, resulting in increased power consumption and increased compressor exhaust temperature. If the dust on the surface of the condenser is not cleaned for a long time, it will seriously affect the life of the compressor.

[0003] However, the microchannel condensers at the bottom of existing refrigeration equipment are all placed vertically, which makes dust removal difficult. The compressor compartment space is small, and dust removal requires opening the rear cover of the compressor compartment, which is not conducive to operation. Summary of the invention

[0004] The object of the present invention is to provide a refrigeration device for solving the above-mentioned problem.

[0005] To achieve one of the above-mentioned purposes of the invention, the present invention provides a refrigeration device, comprising an air inlet chamber and an air outlet chamber located at the bottom of the refrigeration device, wherein the air inlet chamber and the air outlet chamber are both connected to the external air; a condenser is provided in the air inlet chamber, a compressor is provided in the air outlet chamber, and a water washing device for removing dust from the condenser is also provided in the air inlet chamber.

[0006] As a further improvement of the present invention, the condenser is horizontally arranged in the air inlet chamber, the refrigeration equipment also includes a suction fan horizontally arranged above the condenser, and the water washing device includes a dust removal nozzle located between the condenser and the suction fan, a water supply system for supplying water to the dust removal nozzle, and a water collecting component for collecting dust removal water.

[0007] As a further improvement of the present invention, a drainage wind hood for guiding the wind on the lower side of the condenser to flow upward is further provided in the air inlet cavity.

[0008] As a further improvement of the present invention, the drainage hood includes a first drainage hood connected to the air outlet side of the suction fan, and a second drainage hood connected to the upper side of the condenser and the air inlet side of the suction fan.

[0009] As a further improvement of the present invention, the refrigeration equipment also includes a partition separating the air inlet chamber and the air outlet chamber, the first air inlet hood is provided with an air outlet channel, and the partition is provided with a connecting port connecting the air outlet channel with the air outlet chamber.

[0010] As a further improvement of the present invention, the water supply system further includes a water supply pipe connected to the dust removal nozzle, and the second drainage wind hood is provided with an opening for the water supply pipe to pass through.

[0011] As a further improvement of the present invention, temperature sensors are provided at the inlet and outlet of the condenser.

[0012] As a further improvement of the present invention, the water collecting component is an evaporating dish arranged at the lower side of the condenser, and the air outlet pipe of the compressor is bent and arranged in the evaporating dish.

[0013] As a further improvement of the present invention, the water supply system includes a water storage device, and the water storage device is used to collect waste water and / or defrost water discharged from the purifier.

[0014] As a further improvement of the present invention, the refrigeration device includes a heat dissipation water outlet pipe for flowing the water of the water storage device into the evaporating dish.

[0015] The refrigeration equipment of the present invention comprises an air inlet chamber and an air outlet chamber located at the bottom of the refrigeration equipment, and the air inlet chamber and the air outlet chamber are both connected to the external air; a condenser is provided in the air inlet chamber, and a compressor is provided in the air outlet chamber, and a water washing device for removing dust from the condenser is also provided in the air inlet chamber. The dust on the surface of the condenser is washed away by the water washing device, which can not only improve the heat dissipation efficiency of the condenser and the service life of the compressor, but also allow the dust removal water to remain on the surface of the condenser, thereby reducing the temperature of the condenser and reducing the energy consumption of the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a refrigeration device in a specific embodiment of the present invention;

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure of the refrigeration equipment from another perspective;

[0018] Figure 3 yes Figure 1 A schematic diagram of the structure inside the middle air intake cavity;

[0019] Figure 4 It is a flow chart of the control method of the refrigeration equipment of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0021] It should be understood that the terms used herein, such as "upper", "lower", "inner", etc., indicating spatial relative positions are used for the purpose of convenience to describe the relationship of one component or feature relative to another component or feature as shown in the drawings. The spatial relative position terms may be intended to include different orientations of the device in use or operation other than the orientation shown in the drawings.

[0022] The present invention provides a refrigeration device, see Figures 1 to 3 As shown, the refrigeration equipment includes an air inlet chamber 1 and an air outlet chamber 2 located at the bottom of the refrigeration equipment, and the air inlet chamber 1 and the air outlet chamber 2 are both connected to the external air; a condenser 3 is provided in the air inlet chamber 1, and a compressor 4 is provided in the air outlet chamber 2. A water washing device 5 for removing dust from the condenser 3 is also provided in the air inlet chamber 1. The dust on the surface of the condenser 3 is washed away by the water washing device 5, which can not only improve the heat dissipation efficiency of the condenser 3 and the service life of the compressor 4, but also allow more water to remain on the surface of the condenser 3, thereby reducing the temperature of the condenser 3 and reducing the energy consumption of the refrigeration equipment.

[0023] It is understood that the refrigeration device may be a refrigerator, a freezer, or other commonly used refrigeration devices. The refrigeration device has a housing and a bottom plate 6 at the bottom. For clarity, Figure 1 and Figure 2 The housing of the refrigeration equipment is not shown. The housing and the bottom plate 6 are surrounded to form an independent air inlet chamber 1 and an air outlet chamber 2. Wind shield strips 7 are provided on the side walls of the air inlet chamber 1 and the air outlet chamber 2, so that the air inlet chamber 1 and the air outlet chamber 2 are connected to the outside air.

[0024] The condenser 3 may be one of the condensers 3 of existing refrigeration equipment, such as a microchannel condenser or a finned condenser. The condenser 3 includes an inlet and an outlet, and the air outlet pipe of the compressor 4 is connected to the inlet of the condenser 3, so that the high-pressure superheated refrigerant gas discharged from the compressor 4 is cooled and condensed into a saturated liquid through the condenser 3.

[0025] Furthermore, the condenser 3 is horizontally arranged in the air inlet cavity 1, and the refrigeration device further comprises a suction fan 8 horizontally arranged above the condenser 3. Figure 3 As shown, the water washing device 5 includes a dust removal nozzle 9 located between the condenser 3 and the suction fan 8, a water supply system for supplying water to the dust removal nozzle 9, and a water collecting component 10 for collecting dust removal water. When the water washing device 5 is started to remove dust from the condenser 3, the condenser 3 is arranged horizontally, which can increase the contact area between the water sprayed by the dust removal nozzle 9 and the condenser 3, thereby improving the dust removal effect of the condenser 3, and the water droplets formed by the water mist sprayed with the dust removal spray will remain on the surface of the condenser 3, thereby improving the cooling effect of the refrigerant in the condenser 3, making the refrigeration equipment more energy-efficient.

[0026] It is understandable that the negative pressure formed by the suction fan 8 causes the air on the lower side of the condenser 3 to flow upward, and the external air continuously enters the air inlet cavity, so that the condenser 3 exchanges heat with the cold air from the outside, thereby achieving the cooling of the refrigerant inside the condenser 3. The suction fan 8 is arranged horizontally above the condenser 3, which can increase the contact area between the wind flow and the condenser 3, thereby improving the cooling efficiency of the refrigerant in the condenser 3. When the condenser 3 needs to be dusted, the suction fan 8 is turned off first, and then the water washing device 5 is turned on to prevent the suction fan 8 from interfering with the direction of the water flow sprayed by the water washing device 5, so as to ensure the dust removal effect of the condenser 3.

[0027] Furthermore, the air inlet chamber 1 is also provided with a drainage hood 11 for guiding the wind on the lower side of the condenser 3 to flow upward, further ensuring that the air on the lower side of the condenser 3 flows upward, thereby improving the cooling efficiency of the refrigerant in the condenser 3 by the air flow.

[0028] In a specific implementation, the air inlet hood 11 includes a first air inlet hood 111 connected to the air outlet side of the suction fan 8, and a second air inlet hood 11 connected to the upper side of the condenser 3 and the air inlet side of the suction fan 8. When the suction fan 8 is working, the second air inlet hood 11 ensures that the wind on the lower side of the condenser 3 will not spread around when flowing upward, and all flows toward the suction fan 8 and the first air inlet hood 111. The first air inlet hood 111 then guides the hot air after heat exchange with the refrigerant in the condenser 3 into the air outlet chamber 2, thereby increasing the temperature in the air outlet chamber 2, thereby saving energy consumption of the compressor 4.

[0029] It can be understood that the wind on the lower side of the condenser 3 is cold air with the same temperature as the outside air. Through the combined action of the suction fan 8 and the second drainage hood 11, the cold air flows upward through the condenser 3 and exchanges heat with the high-temperature refrigerant inside the condenser 3, and becomes hot air above the condenser 3. The hot air enters the first drainage hood 111 under the action of the suction fan 8, and finally flows to the air outlet chamber 2.

[0030] Specifically, the refrigeration device further includes a partition 12 separating the air inlet chamber 1 from the air outlet chamber 2 , the first air induction hood 111 is provided with an air outlet channel, and the partition 12 is provided with a connecting port connecting the air outlet channel with the air outlet chamber 2 .

[0031] Furthermore, the water supply system also includes a water supply pipe 13 connected to the dust removal nozzle 9, and the second drainage wind hood 11 is provided with an opening 14 for the water supply pipe 13 to pass through, thereby facilitating the installation or maintenance of the dust removal nozzle 9 and the water supply pipe 13.

[0032] Of course, it is understandable that the structure of the drainage hood 11 is not limited to this. The drainage hood 11 can be an integrated setting, and the outer shell of the drainage hood 11 wraps the upper side and surrounding of the condenser 3 and the suction fan 8, and can allow external air to enter the drainage hood 11 and finally flow to the air outlet chamber 2.

[0033] Furthermore, the inlet and outlet of the condenser 3 are both provided with temperature sensors, so that the temperature of the inlet and outlet of the condenser 3 can be monitored in real time, and the cooling effect of the condenser 3 on the refrigerant can be judged by the temperature difference between the inlet and outlet of the condenser 3. When the temperature difference between the inlet and outlet of the condenser 3 is large, it means that the condenser 3 has a good cooling effect. When the temperature difference between the inlet and outlet of the condenser 3 is small, it means that the dust accumulated on the surface of the condenser 3 affects the heat dissipation of the condenser 3, making the cooling effect of the refrigerant poor, and the temperature of the refrigerant at the outlet of the condenser 3 is high, thereby affecting the cooling effect of the refrigeration equipment.

[0034] Furthermore, the water collecting component 10 is an evaporating dish provided at the lower side of the condenser 3, and the air outlet pipe of the compressor 4 is bent and arranged in the evaporating dish. After the dust removal nozzle 9 sprays water, the water on the surface of the condenser 3 is washed away by the running water and collected in the evaporating dish. The water in the evaporating dish exchanges heat with the refrigerant in the air outlet pipe, so that the refrigerant enters the condenser 3 after cooling, thereby reducing the energy consumption of the condenser 3. At the same time, the water in the evaporating dish also evaporates when heated, which not only avoids the situation where the dust removal water in the water collecting component 10 overflows excessively, but also further reduces the temperature of the air at the lower side of the condenser 3.

[0035] Specifically, a supporting component 15 higher than the evaporating dish is provided in the evaporating dish, and the condenser 3 is connected to the upper end of the supporting component 15, so as to avoid the condenser 3 from contacting the dust removal water in the evaporating dish, and to ensure that the air below the condenser 3 flows upward, thereby ensuring the heat dissipation effect of the condenser 3.

[0036] Furthermore, the water supply system includes a water storage device 16, which is used to collect waste water and / or defrost water discharged from the purifier, and the waste water or defrost water discharged from the purifier is used to remove dust from the condenser 3, which can save energy. In addition, the defrost water itself has a certain amount of cooling capacity, which can further reduce the temperature of the refrigerant inside the condenser 3 while removing dust, thereby improving the heat dissipation effect of the condenser 3.

[0037] Furthermore, the refrigeration equipment includes a heat dissipation water outlet pipe 17, and the heat dissipation water outlet pipe 17 can flow the water of the water storage device 16 into the evaporating dish. When the water level in the evaporating dish is low, the water stored in the device flows into the evaporating dish, which can ensure that there is enough water in the evaporating dish to exchange heat with the outlet pipe for cooling, thereby reducing the energy consumption of the refrigeration equipment.

[0038] It is understandable that other structures of the refrigeration equipment in the present invention all follow the structures of the existing refrigeration equipment, and will not be described in detail here.

[0039] Another aspect of the present invention provides a control method for a refrigeration device. The specific structure of the refrigeration device is as described above and will not be described in detail here. Figure 4 As shown, the control method of the refrigeration equipment includes the following steps:

[0040] S1, obtaining the temperature difference between the inlet and outlet of the condenser;

[0041] S2, determining whether the temperature difference is less than a preset temperature difference;

[0042] S3: If yes, start the water washing device near the condenser to remove dust from the condenser.

[0043] It is understandable that when the temperature difference between the inlet and outlet of the condenser is greater than the preset temperature difference, it means that the condenser has a better cooling effect. When the temperature difference between the inlet and outlet of the condenser is less than the preset temperature difference, it means that the dust accumulated on the surface of the condenser affects the heat dissipation of the condenser, making the cooling effect of the refrigerant poor, and the temperature of the refrigerant at the outlet of the condenser is high, thereby affecting the cooling effect of the refrigeration equipment.

[0044] When the temperature difference between the inlet and outlet of the condenser is less than a preset temperature difference, the present invention starts a water washing device arranged near the condenser to remove dust from the condenser. Dust on the surface of the condenser is washed away by the water washing device, which can not only reduce the temperature of the condenser but also improve the heat dissipation efficiency of the condenser and increase the service life of the compressor.

[0045] Furthermore, step S1 specifically includes: detecting the temperatures of the inlet and outlet of the condenser in real time, and calculating the temperature difference between the inlet and outlet.

[0046] By detecting the inlet and outlet temperatures of the condenser in real time and constantly monitoring the temperature difference between the inlet and outlet of the condenser, it is possible to promptly detect when dust accumulates seriously on the surface of the condenser and promptly start the water washing device for dust removal, thereby ensuring the heat dissipation effect of the condenser in the refrigeration equipment and the service life of the compressor.

[0047] Furthermore, after step S2 and before step S3, the control method of the refrigeration equipment further includes the following steps:

[0048] S4, stop the fan.

[0049] When the condenser needs to be dusted, first turn off the suction fan and then start the water washing device to prevent the fan from interfering with the direction of the water flow sprayed by the water washing device to ensure the dust removal effect of the condenser.

[0050] Specifically, in step S3, "starting the water washing device arranged near the condenser to remove dust from the condenser" is specifically: starting the water valve to spray the water in the water storage device to the condenser through the dust removal nozzle, and running the water valve for the preset dust removal time.

[0051] Furthermore, after step S4 and before step S3, the control method of the refrigeration equipment further includes the following steps:

[0052] S5, obtaining the liquid level value of the water collecting component, and obtaining the corresponding preset dust removal time according to the liquid level value of the water collecting component.

[0053] It can be understood that a liquid level sensor is provided inside the water collecting component. By obtaining the liquid level value of the water collecting component through the liquid level sensor, the maximum capacity value of the water collecting component that can store dust removal water can be obtained, thereby obtaining the corresponding preset dust removal time, so that the water washing device can remove dust for the condenser under the maximum capacity that the water collecting component can bear, and wash away more dust on the surface of the condenser, which can not only improve the heat dissipation efficiency of the condenser and increase the service life of the compressor, but also allow more water to remain on the surface of the condenser, thereby reducing the temperature of the condenser and reducing the energy consumption of the refrigeration equipment.

[0054] Specifically, the dust removal time of the dust removal nozzle is inversely proportional to the liquid level value. The higher the liquid level value, the lower the maximum capacity value that can store dust removal water, and therefore, the corresponding dust removal time is shorter.

[0055] Furthermore, in step S3, "starting the water valve to spray the water in the water storage device toward the condenser through the dust removal nozzle, and running the water valve for a preset dust removal time" is specifically as follows: obtaining the water level in the first water storage device; when the water level in the first water storage device is greater than the minimum water level, starting the first water valve to spray the defrost water of the first water storage device toward the condenser through the dust removal nozzle, and running the first water valve for a preset dust removal time; when the water level in the first water storage device is less than or equal to the minimum water level, starting the second water valve to spray the waste water of the purifier of the second water storage device toward the condenser through the dust removal nozzle, and running the second water valve for a preset dust removal time.

[0056] It is understandable that the first water storage device is used to collect defrost water, and the second water storage device is used to collect waste water from the purifier. When the water level in the first water storage device is higher than the minimum water level, the present invention preferentially uses defrost water for dust removal, and uses the cooling capacity of the defrost water itself to further reduce the temperature of the refrigerant inside the condenser while removing dust, thereby improving the heat dissipation effect of the condenser without increasing the energy consumption of the condenser. When the water level in the first water storage device is less than or equal to the minimum water level, the waste water discharged from the water purifier is used for water washing and dust removal, which saves energy while improving the heat dissipation efficiency of the condenser and the service life of the compressor.

[0057] Furthermore, step S3 also includes: during the operation of the first water valve, obtaining the water level in the first water storage device, determining whether the water level in the first water storage device is less than or equal to the minimum preset water level; if so, closing the first water valve, starting the second water valve to spray the second water storage device toward the condenser through the dust removal nozzle until the first water valve and the second water valve have accumulated a preset dust removal time.

[0058] While using the defrost water in the first water storage device to remove dust, the water level in the first water storage device is obtained in real time. When the water level reaches the lowest level, the first water valve is closed, and the second water valve is started to allow the water washing device to use the waste water of the water purifier to wash the dust on the surface of the condenser. When the total amount of defrost water cannot meet the preset dust removal time, the waste water of the water purifier in the second water storage device is used to supplement it, ensuring that the total water washing and dust removal time of the water washing device reaches the preset dust removal time, ensuring sufficient dust removal on the surface of the condenser, thereby ensuring the heat dissipation effect of the condenser and the service life of the compressor.

[0059] Furthermore, after the “operating the water valve for the preset dust removal time” in step S3, the control method of the refrigeration equipment further comprises the following steps:

[0060] S6, start the fan.

[0061] After the water washing device has removed the dust, the fan is started to dissipate heat from the condenser surface again.

[0062] The refrigeration equipment of the present invention comprises an air inlet chamber and an air outlet chamber located at the bottom of the refrigeration equipment, and the air inlet chamber and the air outlet chamber are both connected to the outside air; a condenser is arranged in the air inlet chamber, and a compressor is arranged in the air outlet chamber, and a water washing device for removing dust from the condenser is also arranged in the air inlet chamber. By washing away dust on the surface of the condenser with the water washing device, the heat dissipation efficiency of the condenser and the service life of the compressor can be improved, and the dust removal water can be retained on the surface of the condenser to reduce the temperature of the condenser and the energy consumption of the refrigeration equipment. The control method of the refrigeration equipment of the present invention starts the water washing device arranged near the condenser to remove dust from the condenser when the temperature difference between the inlet and outlet of the condenser is less than the preset temperature difference. By washing away dust on the surface of the condenser with the water washing device, the temperature of the condenser can be reduced, and the heat dissipation efficiency of the condenser and the service life of the compressor can be improved.

[0063] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0064] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refrigeration device, comprising an air inlet cavity and an air outlet cavity located at the bottom of the refrigeration device, wherein the air inlet cavity and the air outlet cavity are both connected to the outside air; a condenser is arranged in the air inlet cavity, and a compressor is arranged in the air outlet cavity, wherein: The air inlet chamber is also provided with a water washing device for removing dust from the condenser.

2. According to the refrigeration equipment according to claim 1, the condenser is horizontally arranged in the air inlet chamber, and the refrigeration equipment also includes a suction fan horizontally arranged above the condenser, and the water washing device includes a dust removal nozzle located between the condenser and the suction fan, a water supply system for supplying water to the dust removal nozzle, and a water collecting component for collecting dust removal water.

3. The refrigeration equipment according to claim 2, characterized in that: The air inlet cavity is also provided with a drainage wind hood for guiding the wind on the lower side of the condenser to flow upward.

4. The refrigeration equipment according to claim 3, characterized in that: The air inlet hood includes a first air inlet hood connected to the air outlet side of the suction fan, and a second air inlet hood connected to the upper side of the condenser and the air inlet side of the suction fan.

5. The refrigeration equipment according to claim 4, characterized in that: The refrigeration device further includes a partition separating the air inlet cavity and the air outlet cavity, the first air induction hood is provided with an air outlet passage, and the partition is provided with a connecting port connecting the air outlet passage with the air outlet cavity.

6. The refrigeration device according to claim 4, characterized in that: The water supply system also includes a water supply pipe connected to the dust removal nozzle, and the second drainage wind hood is provided with an opening for the water supply pipe to pass through.

7. The refrigeration device according to claim 1, characterized in that: The inlet and outlet of the condenser are both provided with temperature sensors.

8. The refrigeration equipment according to claim 2, characterized in that: The water collecting component is an evaporating dish arranged at the lower side of the condenser, and the air outlet pipe of the compressor is bent and arranged in the evaporating dish.

9. The refrigeration device according to claim 8, characterized in that: The water supply system comprises a water storage device, and the water storage device is used to collect waste water and / or defrost water discharged from the purifier.

10. The refrigeration device according to claim 9, characterized in that: The refrigeration device comprises a heat dissipation water outlet pipe for flowing the water of the water storage device into the evaporation dish.

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